Category: organic fertilizer equipment

organic fertilizer equipment

Why is the drum fertilizer dryer the core equipment in organic fertilizer production lines?

by organic fertilizer production line

In the entire chain of organic fertilizer production, the drum fertilizer dryer, as a key piece of organic fertilizer production equipment, is by no means an optional auxiliary device, but rather a core link that determines product quality, production efficiency, and market competitiveness. It is an indispensable piece of equipment for organic fertilizer processing plants.

Firstly, it precisely solves the problem of moisture content in organic fertilizer raw materials. Organic fertilizer raw materials are mostly livestock and poultry manure, straw, and mushroom residue. Fresh raw materials have a moisture content exceeding 60%, and directly entering subsequent processes can easily cause equipment clogging, prevent proper shaping, and promote mold growth. The drum fertilizer dryer, through high-temperature hot air circulation, can quickly reduce the moisture content of the raw materials to a suitable range of 30%-40%, laying the foundation for subsequent processes.

Secondly, it is a key guarantee for improving the quality of organic fertilizer. Organic fertilizer that is not sufficiently dried is prone to secondary fermentation, clumping, and deterioration during storage and transportation, which reduces fertilizer efficiency and pollutes the environment. The drum fertilizer dryer can simultaneously kill insect eggs and bacteria during drying, reducing the risk of pests and diseases, and also improving the strength and uniformity of fertilizer granules.

Furthermore, its high efficiency and stability are perfectly suited to the needs of industrialized organic fertilizer production lines. The drum fertilizer dryer has a large processing capacity and high efficiency, meeting the requirements of large-scale continuous operation. At the same time, energy consumption is controllable; by adjusting the temperature and rotation speed, it can reduce costs and increase efficiency while ensuring effectiveness.

For organic fertilizer processing plants, equipping themselves with a high-efficiency drum fertilizer dryer, a core piece of organic fertilizer production equipment, is a necessary condition for achieving improved quality, increased efficiency, and green development in organic fertilizer production lines.

organic fertilizer equipment

Fertilizer compaction machines: A key choice in modern organic fertilizer granulation technology

by organic fertilizer production line

In today’s landscape of various organic fertilizer granulation equipment, fertilizer compaction machines, with their unique technological approach, have established a distinct competitive advantage over rotary drum granulators, ring die pelleting machines, and flat die pelleting machines. This type of equipment, which uses mechanical pressure to shape materials, provides organic fertilizer production lines with more diverse technological options.

Comparing various granulation equipment, ring die pelleting machines and flat die pelleting machines employ similar extrusion principles, but each has its own characteristics in terms of specific structure and applicable scenarios. Fertilizer compaction machines maintain a relatively simple mechanical structure among these equipment types. This design feature makes them outstanding in terms of ease of maintenance and operational stability, making them a reliable choice for many fertilizer production enterprises.

With technological advancements, new type organic fertilizer granulators are constantly emerging, but extruders maintain their unique market position. Modern extrusion equipment, while inheriting traditional advantages, integrates innovative elements such as intelligent control and energy consumption optimization, enabling it to continue to maintain its competitiveness against other types of granulation equipment.

With the trend of diversified development in organic fertilizer granulation equipment, extruders continue to play an irreplaceable role in modern fertilizer production due to their unique technical characteristics and reliable product performance. They not only enrich the process routes for organic fertilizer production but also provide production enterprises with more diversified product development possibilities.

organic fertilizer equipment

Fertilizer granules compaction technology: Enabling flexible production in fertilizer production lines

by organic fertilizer production line

In the large-scale production of bio-organic fertilizers, flexible adaptation to diverse raw materials and product requirements is crucial for enhancing competitiveness. As a core piece of bio-organic fertilizer equipment, the fertilizer compaction machine, relying on fertilizer granules compaction technology, precisely addresses production pain points in multiple scenarios, providing crucial support for the efficient and flexible operation of bio-organic fertilizer production lines.

When dealing with diverse raw materials, the advantages of fertilizer granules compaction technology are significant. Bio-organic fertilizer raw materials include livestock and poultry manure, straw, and fungal residue, with varying moisture content and fiber content. The fertilizer compaction machine can adapt to different raw materials by adjusting parameters such as extrusion pressure and rotation speed: strengthening shear force for high-fiber materials and optimizing anti-sticking design for high-moisture materials. This allows for granulation of multiple raw materials without changing equipment, significantly broadening the range of raw materials suitable for bio-organic fertilizer production lines.

In terms of product form optimization, this technology can precisely control granule specifications. Different scenarios require different particle sizes and hardness for organic fertilizers; for example, field fertilizers require large, hard granules for mechanical application, while seedling fertilizers require fine, soft granules. By changing molds and adjusting technical parameters, the fertilizer granules compaction machine can mass-produce products of different specifications, allowing bio-organic fertilizer production lines to flexibly respond to market demands and enhance product competitiveness.

Furthermore, the low energy consumption and low pollution characteristics of this technology align with green production requirements. It requires minimal binders, ensuring both high molding efficiency and preservation of raw material nutrients, while minimizing dust and wastewater emissions. This contributes to the environmentally friendly and efficient operation of bio-organic fertilizer production lines, demonstrating the empowering value of advanced technology for bio-organic fertilizer equipment and industry development.

organic fertilizer equipment

The core of NPK fertilizer production line quality: The suitability and value of flat die pelleting machines

by organic fertilizer production line

The granular quality of NPK fertilizers directly determines their fertilization effect and market acceptance. The NPK fertilizer granulator machine, as the core equipment of the production line, plays a crucial role in quality control. Among the many types of NPK fertilizer granulators, the flat die pelleting machine, with its unique advantages, has become the preferred equipment for small and medium-sized NPK fertilizer production lines.

The flat die pelleting machine is well-suited to the raw material characteristics of NPK fertilizers and meets the diverse needs of the production line. NPK fertilizer raw materials have complex compositions and varying particle sizes and viscosities. The flat die pelleting machine, through its die extrusion molding principle, can effectively adapt to different NPK raw material ratios. Whether it’s high-nitrogen, high-phosphorus, or balanced ratio raw materials, it can achieve stable granulation, producing granules with high strength and uniform nutrient distribution, preventing powdering or caking. At the same time, its simple structure and convenient adjustment allow for flexible adjustment of particle size according to production line needs, adapting to different crop fertilization scenarios.

The synergistic operation of the flat die pelleting machine and the NPK fertilizer production line requires attention to core details. On the one hand, it is necessary to ensure uniform mixing of raw materials at the front end to lay the foundation for granulation; on the other hand, it is necessary to accurately adjust the pressure and speed of the granulator according to the moisture content of the raw materials to avoid particle adhesion due to excessive moisture or difficulty in molding due to insufficient moisture.

In summary, in an NPK fertilizer production line, the rational selection of a high-quality NPK fertilizer granulator like the flat die pelleting machine, and the control of the synergistic details between the equipment, raw materials, and processes, is the core path to improving product quality and enhancing the competitiveness of the production line.

organic fertilizer equipment

Carbon-based synergistic granulation! Carbon-based fertilizer disc + drum granulation production line

by organic fertilizer production line

This innovative carbon-based fertilizer disc + drum granulation production line integrates two processes: “disc pre-granulation + drum finishing.” Specifically designed for the granulation needs of carbon-based raw materials (straw charcoal, bamboo charcoal, biochar, etc.), it solves the granulation pain points of lightweight and poor binding properties of carbon-based raw materials through a closed-loop process of “pre-forming + densification.” This enables large-scale, high-quality production of carbon-based fertilizer, suitable for green development scenarios such as ecological agriculture and organic farming.

Production Line Configuration and Core Details

Raw Material Pre-treatment Unit: Laying the Foundation for Granulation

(I) Raw Material Storage and Precision Batching

Multi-Compartment Storage System: Equipped with 5 raw material compartments (total volume 120m³), storing biochar, organic fertilizer fermentation material, nitrogen, phosphorus, and potassium inorganic fertilizer, binders (such as bentonite and starch), and trace elements respectively. The compartments are made of carbon steel with an anti-corrosion coating, and vibrators and star-shaped unloaders are installed at the bottom to prevent bridging and clogging of carbon-based raw materials.

Precision Batching Device: Employs a frequency-controlled screw feeder, with 5 batching systems operating synchronously, achieving a batching error of ≤±1%. The proportion of biochar can be flexibly adjusted (30%-60%), the ratio of inorganic to organic fertilizer is customized according to crop needs, and the binder addition is controlled at 3%-8% to ensure pellet formation rate.

(II) Raw Material Mixing and Moisture Adjustment

Twin-Shaft Mixer: A 50-type twin-shaft mixer is used. The impellers employ an anti-rotation design, driving strong convection and shearing of the materials to thoroughly mix the charcoal-based raw materials with other components, achieving a mixing uniformity error of ≤2%. The mixer is equipped with a spray humidification device to precisely adjust the raw material moisture content to 28%-35% (suitable humidity for the charcoal-based raw materials), preventing clumping due to excessive moisture or insufficient adhesion due to insufficient moisture.

Pulverization Pretreatment: If large lumps (particle size > 10mm) of biochar exist, they are first crushed to ≤3mm using a 400-type vertical pulverizer to ensure uniform raw material fineness and improve subsequent granulation results. The pulverizer is equipped with a cyclone dust collector to collect and reuse the crushed dust, achieving a material utilization rate of 99%. II. Core Dual Granulation Unit: Carbon-Based Particle Densification Forming

(I) Disc Pre-granulation: Key to Lightweight Material Pre-forming

Core Equipment Selection: Two Φ3.2×1.2 meter disc granulators (3-5 tons per hour per unit), with an adjustable inclination angle of 45°-55° and a rotation speed controlled at 20-30 r/min. The discs are lined with wear-resistant rubber plates to prevent wear from the carbon-based raw materials and enhance material adhesion.

Pre-granulation Process Details: The mixed raw materials are fed into the disc granulator. Through the centrifugal force and friction generated by the rotating disc, spherical wet particles with a diameter of 5-8 mm are formed (granulation rate ≥85%). A scraper is installed at the edge of the disc to promptly clean material adhering to the wall, and a spray device replenishes moisture in real time to ensure that the pre-formed particles are round and uniform, laying the foundation for drum finishing.

(II) Rotary Drum Granulation: Particle Densification Upgrade

Core Equipment Configuration: One Φ2.2×10 meter rotary drum granulator (6-10 tons per hour) is used, precisely matched with the capacity of the disc granulator. The inner wall of the drum is lined with wear-resistant ceramic plates, combined with a spiral layout of lifting plates, driving the material through a “tumbling-rolling-collision” motion to achieve particle densification.

Refinement Process Highlights: A spray device is installed inside the drum to replenish a small amount of binder solution, further rolling the pre-formed granules into dense granules of 3-6mm, increasing the particle strength from 1.2MPa to over 2.5MPa, solving the problem of easy pulverization of carbon-based granules. The drum speed is adjustable from 10-18 r/min, and the material residence time is 8-12 minutes to ensure dense and uniform particles.

III. Post-processing Unit: Quality Optimization and High-Efficiency Output

(I) Drying and Cooling Curing

Low-Temperature Dryer: Equipped with a Φ1.8×18 m drum dryer, using hot air circulation heating, the drying temperature is controlled at 70-90℃ (to avoid high temperature damage to carbon-based nutrients), reducing the particle moisture content from 30% to below 12%. The dryer has a built-in staggered lifting plate layout, ensuring uniform heating of the carbon-based particles, with a drying uniformity error ≤2%.

Dual-Stage Cooler: Employing a “first-stage counter-current cooling + second-stage co-current cooling” process, the particle temperature is first reduced from 70-80℃ to below 40℃ by a Φ1.6×15 m counter-current cooler, and then cooled to room temperature ±3℃ by a Φ1.2×12 m co-current cooler, further improving particle strength and moisture resistance. The cooler is equipped with a pulse dust collector to collect dust for recycling.

(II) Grading and Finished Product Processing

Grading and Screening Machine: A Φ1.5×6.0 meter drum screen with a double-layer screen design (upper layer aperture 6mm, lower layer aperture 3mm) is used to screen out qualified particles (3-6mm). Unqualified particles are returned to the disc granulator for reprocessing via a return conveyor belt, achieving a material utilization rate of 98%.

Anti-caking Treatment: When the screened finished particles are conveyed via conveyor belt, 0.1%-0.2% of an anti-caking agent (such as talc powder) is sprayed on them to ensure even mixing and prevent clumping during storage.

(III) Finished Product Storage and Packaging

Finished Product Silos: Two 100m³ sealed finished product silos are provided, equipped with dehumidification and ventilation devices to maintain a relative humidity of ≤60% to prevent the carbon-based fertilizer from absorbing moisture. A quantitative discharge device is installed at the bottom of the silo to achieve continuous and stable discharge.

Automated Packaging: Utilizing a dual-station automatic packaging scale, supporting rapid switching between 25kg and 50kg specifications, with a measurement error ≤ ±0.2kg and a packaging speed of 100 bags/hour. The packaging machine is equipped with a dust cover to reduce dust emissions, and the fully automated operation minimizes manual intervention.

Environmental Protection and Intelligent Control Unit: Stable Green Production

(I) Environmental Treatment System

Dust Treatment: Each dust-generating stage of the production line (crushing, screening, packaging) is equipped with a pulse dust collector, with a total processing air volume of 18000m³/h. Dust emission concentration ≤10mg/m³, meeting national environmental protection standards.

Wastewater Treatment: A small amount of cleaning wastewater during production is treated in a sedimentation tank and then recycled for raw material humidification, achieving zero wastewater discharge.

(II) Intelligent Control System

Integrated PLC central control system, real-time monitoring of key parameters such as ingredient ratio, moisture content, granulation speed, and drying temperature, supporting automatic fault alarms and data recording (storage period ≥90 days). The system supports manual and automatic mode switching and can dynamically adjust process parameters according to raw material characteristics to ensure stable production.

Core Advantages and Application Value of the Production Line

Breakthrough in Granulation Pain Points: The combined disc and drum granulation processes solve the problems of poor adhesion and low granulation rate of carbon-based raw materials. Granulation formation rate is consistently above 90%, with a strength exceeding 2.5 MPa, making it resistant to storage and transportation and less prone to pulverization.

Flexible Capacity: Hourly capacity covers 6-10 tons, with an annual capacity of 50,000-80,000 tons (based on 300 days of operation per year and 8 hours per day), adapting to the production needs of enterprises of different sizes.

Superior Product Quality: Carbon-based raw materials and nutrients are uniformly integrated, resulting in rounded granules with good flowability, facilitating mechanized fertilization. The slow-release characteristics of carbon-based components can improve fertilizer utilization by more than 30% and reduce nutrient loss.

Green, Environmentally Friendly, and Energy-Saving: High dust recovery and utilization rate; energy consumption is reduced by 12% compared to conventional single-process granulation production lines, meeting the requirements of green agricultural production.

A Specialized Link in a Broader Manufacturing Ecosystem

This carbon-based fertilizer granulation line represents a significant advancement in processing challenging, lightweight organic materials into high-quality, market-ready fertilizers. Its innovative dual-granulation approach sets a new standard for product quality and production efficiency in the niche of carbon-enriched soil amendments.

This specialized line is a prime example of professional fertilizer manufacturing equipment designed for a specific purpose. It exists within a larger ecosystem of fertilizer production technologies. For instance, the disc granulator used here is a key component in a disc granulation production line and can also serve as a disc granulator for shaping in other contexts. While this line produces organic-carbon blends, its principles complement other systems. A complete organic fertilizer production line might begin with a windrow composting machine to produce the base compost. For mineral-based production, an npk fertilizer production line would utilize an npk blending machine and different granulation technologies like a roller press granulator production line or a double roller press granulator as part of the npk fertilizer production process. Each type of fertilizer granulator serves a unique role in the diverse portfolio of modern fertilizer manufacturing.

Thus, this carbon-based line is not an isolated solution but an integral part of a comprehensive toolkit that allows manufacturers to meet the growing global demand for both specialized organic inputs and conventional high-analysis fertilizers.

organic fertilizer equipment

Dual-Function Production Line! NPK and Potassium Chloride Combined Production Line

by organic fertilizer production line

The NPK and potassium chloride combined production line is an integrated solution designed specifically for the “flexible production” needs of fertilizer companies. Through modular equipment configuration and process switching design, it can flexibly produce NPK compound fertilizer (multiple ratios) and potassium chloride granular fertilizer, achieving efficient capacity utilization of “one set of equipment, two products.” It adapts to the diversified market demands of large-scale fertilizer production enterprises, significantly reducing equipment investment and site occupancy costs.

Core Design Logic and Full-Process Configuration of the Production Line

The production line is based on “raw material sharing, process differentiation, and equipment universality.” It integrates key processes such as raw material pretreatment, precise batching, granulation, and post-processing. Through local equipment switching and parameter adjustments, it achieves rapid conversion between the two products. A single production line can achieve a capacity of 10-15 tons (NPK compound fertilizer) or 12-18 tons (potassium chloride granular fertilizer).

I. Raw Material Pretreatment and Sharing Unit: Laying the Foundation for Dual-Product Production

(I) Raw Material Storage and Precise Batching

Multi-Warehouse Storage System: Equipped with 6 raw material warehouses (total volume 150m³), storing urea, monoammonium phosphate, potassium chloride (main raw material), binder, trace elements, and functional additives respectively. The warehouse bodies are made of carbon steel with an anti-corrosion coating (compatible with the corrosiveness of potassium chloride). Vibrators and star-shaped unloaders are installed at the bottom to prevent raw material bridging and blockage.

Intelligent Batching Device: Employs a 6-channel variable frequency screw feeder, paired with a PLC control system. When producing NPK compound fertilizer, the proportions of nitrogen, phosphorus, potassium, and additives are precisely controlled according to the formula (batching error ≤ ±0.8%). When producing potassium chloride granular fertilizer, the amount of potassium chloride is increased separately (≥90%), reducing or closing other raw material channels to achieve rapid switching.

(II) Raw Material Pretreatment and Mixing

Crushing and Screening: Potassium chloride raw material is crushed to ≤2mm using a 400-type vertical crusher (to avoid large clumps affecting granulation). During NPK compound fertilizer production, other inorganic raw materials are simultaneously crushed to ≤3mm. A cyclone dust collector is used in the crushing process, achieving a dust recovery rate of 99%. After crushing, the raw materials are graded using a 1.2×4.0 meter drum screen; unqualified particles are returned for regrinding.

Twin-Shaft Mixer: A 60-type twin-shaft mixer is used. During NPK production, multiple components are thoroughly mixed (mixing uniformity error ≤2%). During potassium chloride production, only potassium chloride and a small amount of binder are mixed (addition amount 2%-5%). The mixer is equipped with a spray humidification device, and the moisture content of the raw materials is adjusted according to the product type (NPK: 25%-30%; potassium chloride: 18%-25%). II. Core Granulation Unit: Dual-Product Adaptability Design

(I) Granulation Machine Selection and Switching

Core Equipment: Two Φ2.0×8.0 meter rotary drum granulators (operating in parallel) are used to accommodate the granulation needs of two products. The inner wall of the drum is lined with wear-resistant ceramic plates (resistant to potassium chloride corrosion), and adjustable lifting plates are used. Process switching is achieved by adjusting the lifting plate angle and the drum speed.

Process Parameter Adjustment:

NPK Compound Fertilizer Production: Drum speed 12-15 r/min, material residence time 8-10 minutes, binder is sprayed through atomization to form 3-5mm rounded granules, granulation rate ≥92%;

Potassium Chloride Granular Fertilizer Production: Drum speed 10-12 r/min, extending the material residence time to 12-15 minutes, reducing the amount of binder, utilizing the crystallization characteristics of potassium chloride to assist in molding, particle size controlled at 2-4mm, granulation rate ≥90%. (II) Optimized Auxiliary Granulation

When producing potassium chloride, a pre-compression device is added to pre-compress the mixed potassium chloride raw materials into dense columns before feeding them into the rotary drum granulator, improving particle strength (to above 2.8 MPa) and avoiding pulverization caused by poor adhesion of potassium chloride.

When producing NPK, the pre-compression device is turned off, and the conventional rotary drum granulation process is used directly to ensure uniform fusion of multi-component raw materials.

III. Post-processing Unit: Branching Design Ensures Product Quality

(I) Drying and Cooling

Drying System: A single Φ2.2×20 meter drum dryer is used. Temperature adjustment achieves dual-product compatibility—NPK compound fertilizer is dried at 80-100℃, reducing the moisture content to below 12%; potassium chloride granular fertilizer is dried at 60-80℃ (to avoid high temperatures affecting crystallization stability), reducing the moisture content to below 8%. The dryer is equipped with temperature and humidity sensors to automatically adjust the hot air supply.

Cooling System: Adopting a “primary cooling + branched screening” design, a single Φ1.8×15m counter-current cooler is used to reduce the temperature of the dried granules to below 35℃. The granules are then branched through a three-way valve and conveyed to dedicated screening equipment.

(II) Grading and Finished Product Processing

NPK Compound Fertilizer: After screening using a Φ1.5×6.0m double-layer drum screen (3-5mm sieve aperture), unqualified granules are returned to the raw material mixing stage.

Potassium Chloride Granular Fertilizer: After screening using a Φ1.2×4.0m single-layer vibrating screen (2-4mm sieve aperture), 0.1% anti-caking agent (such as potassium silicate) is sprayed to improve moisture resistance.

IV. Finished Product Storage and Packaging Unit: High-Efficiency Output Switching

Finished Product Warehouse: Equipped with 3 x 100m³ finished product warehouses (2 for NPK compound fertilizer, 1 for potassium chloride granular fertilizer), all featuring a sealed design with dehumidification and ventilation devices. The potassium chloride warehouse has a dedicated anti-corrosion treatment to prevent corrosion.

Packaging System: Shares 2 dual-station automatic packaging scales, allowing for specification switching by adjusting measurement parameters (NPK supports 25kg/50kg, potassium chloride supports 20kg/50kg). Measurement error ≤ ±0.2kg, packaging speed reaches 120 bags/hour, and a conveyor belt enables rapid transfer of finished products.

V. Environmental Protection and Intelligent Control Unit: Stable Green Production

(I) Environmental Protection

Dust Treatment: Each stage is equipped with a pulse dust collector (total processing air volume 20,000 m³/h). Corrosion-resistant dust collector materials are used during potassium chloride production, with dust emission concentration ≤10 mg/m³.

Wastewater Treatment: Washing wastewater is treated by an oil separator and sedimentation tank before being recycled for raw material humidification, achieving zero wastewater discharge.

(II) Intelligent Control

Integrated PLC central control system, preset with two production modes: NPK and potassium chloride. One-click switching of key parameters such as batching ratio, granulation speed, and drying temperature is supported, along with automatic fault alarms and data recording.

Key equipment (granulator, dryer) is equipped with safety interlock devices to ensure stable operation during production transitions.

Core Advantages and Application Value of the Production Line

Flexible and High-Efficiency Production: One set of equipment enables the production of two mainstream fertilizers, reducing transition time to less than 2 hours, significantly reducing equipment investment and site costs, and allowing for rapid capacity adjustments to adapt to market demand fluctuations. Dual Guarantee of Product Quality: Targeted process design and parameter optimization ensure that NPK compound fertilizer has uniform nutrients and rounded granules, while potassium chloride granular fertilizer has high strength and moisture resistance, both meeting national standards.

Energy Saving, Environmental Protection, and Low Cost: Equipment sharing rate exceeds 70%, reducing energy consumption by 18% compared to two separate production lines; dust recovery and wastewater recycling reduce material waste and environmental pollution.

Enhancing Efficiency and Versatility in Fertilizer Manufacturing

This innovative NPK and potassium chloride combined production line exemplifies a strategic approach to modern fertilizer manufacturing. It maximizes asset utilization and operational flexibility, allowing producers to efficiently respond to changing market demands from a single facility.

The line’s core function as an npk fertilizer production line highlights advanced npk fertilizer production technology. Its intelligent design centers around the npk granulation machine technology. Key components include a high-precision npk bulk blending machine for formula preparation and the npk fertilizer granulator machine (a npk fertilizer granulator) for shaping the mixture into granules. The entire npk fertilizer manufacturing process—from batching to granulation and coating—is integrated and optimized within this single, adaptable npk fertilizer production process, demonstrating how modular design can create a versatile and cost-effective production ecosystem.

Ultimately, this solution empowers fertilizer companies to diversify their product portfolio without duplicating infrastructure, securing a competitive edge through agility and efficiency.

organic fertilizer equipment

Turning waste into treasure: A practical guide to making granules from mushroom and herbal medicine residues

by organic fertilizer production line

With the widespread adoption of environmental protection concepts, mushroom mycelium residue and traditional Chinese medicine residue can be transformed into practical granules for use in agricultural fertilization, biofuels, and other fields. The following are the key steps for efficient granulation.

Raw material pretreatment is fundamental. Fresh mushroom residue has a water content exceeding 70%, so it needs to be air-dried or oven-dried to 30%-40%, with frequent turning to prevent mold. Herbal medicine residue should be screened to remove impurities; hard lumps of roots and stems need to be crushed to a particle size of less than 5 mm using a fertilizer crusher. The two are mixed in a ratio of 3:1 or 2:1 (increasing the proportion of mushroom residue for fertilization, and increasing the proportion of herbal medicine residue for fuel), and a small amount of straw powder or bran is added to adjust the hardness and improve granulation stability.

The granulation process requires attention to operational details. Select a flat die pelleting machine or ring die pelleting machine, and preheat the mold to 60-80℃ before starting to prevent sticking. Feed the material at a uniform speed; if the granules are loose and easily broken, spray a small amount of water (not exceeding 2% of the total raw material); if the hardness is too high, reduce the moisture content. Regularly check the particle diameter and adjust the mold aperture to obtain standard 5-8 mm granules.

Finished product processing and application are also crucial. Newly made granules need to be spread out and cooled to room temperature, and then screened with a fertilizer screener machine to remove broken pieces (broken pieces can be returned to the machine for reprocessing). After cooling, pack them in sealed bags and store them in a dry and ventilated place; the shelf life is 6-8 months. In agriculture, they can be used directly as organic fertilizer to improve soil; they can also be used as feed additives for livestock and poultry (provided the herbal medicine residue is tested for harmful residues); and they can also be used as fuel, burning efficiently with low pollution.

This method not only achieves the resource utilization of waste but also reduces production costs. Whether for farmers or small processing plants, this method can be tried according to actual needs, truly achieving “turning waste into treasure.”

organic fertilizer equipment

Large wheel compost turning machine: A high-efficiency pretreatment solution for fertilizer granulation production

by organic fertilizer production line

In modern fertilizer production systems, the large wheel compost turning machine plays a crucial pretreatment role. Although not directly involved in the final granulation stage, this equipment is key to ensuring the efficient operation of subsequent granulation equipment.

As the large wheel compost turning machine slowly moves through the fermentation field, it is creating the ideal raw material foundation for the entire production line. The massive disc rotates steadily, evenly turning the fermented material. This seemingly simple action actually determines the success or failure of the subsequent granulation process. Raw materials carefully processed by it exhibit better plasticity and forming rate, whether fed into a rotary drum granulator for agglomeration or a flat die pelleting machine for pressing.

In modern fertilizer production lines, the value of the large wheel compost turning machine is increasingly prominent. It provides stable, uniformly moist raw materials for the new type two in one organic fertilizer granulator, allowing this multi-functional equipment to fully utilize its technological advantages. Similarly, for equipment like ring die pelleting machines that have high requirements for raw materials, the raw materials thoroughly fermented and mixed by the large wheel compost turning machine can effectively extend the die’s lifespan and improve production efficiency.

The unique feature of this equipment is its ability to tailor raw materials to the characteristics of different granulation equipment. Whether it’s raw materials with specific particle sizes required by fertilizer compaction machines or physical property parameters needed by other granulation equipment, the large wheel compost turning machine can prepare them for subsequent processes through precise fermentation control. This pretreatment is becoming increasingly important throughout the entire production line.

organic fertilizer equipment

These scenarios necessitate the use of a half-wet material crusher to meet the needs of the production line!

by organic fertilizer production line

In the field of bio-organic fertilizer production, the half-wet material crusher, as a specialized piece of bio-organic fertilizer equipment, is not required for all production lines. Its core application scenarios are concentrated in addressing the pain points of half-wet material processing.

First scenario: The raw materials mainly consist of high-moisture organic materials. If the core raw materials of the production line are poultry and livestock manure, kitchen waste, municipal sludge, etc., these materials usually have a moisture content of 30%-60%, are highly cohesive, and prone to clumping. The anti-sticking blades and special chamber design of the half-wet material crusher can precisely solve the problem of wet material processing and ensure a smooth crushing process.

Second scenario: The production line requires refined pre-treatment. Fermentation is crucial in bio-organic fertilizer production. When the production line aims for efficient fermentation and improved nutrient uniformity in the final product, a half-wet material crusher is needed to refine the half-wet raw materials into uniform particles, laying a solid foundation for the subsequent fermentation process.

Third scenario: Processing special half-wet waste residue raw materials. Some production lines use industrial waste residues such as traditional Chinese medicine residue, distiller’s grains, and sugar residue as raw materials. These waste residues are mostly in a semi-wet state and contain fibrous or viscous components. The shear + compression dual crushing mode of the half-wet material crusher can efficiently decompose these special materials.

Fourth scenario: Large-scale bio-organic fertilizer production lines have high requirements for process continuity. If semi-wet materials are not properly processed, it can easily cause blockage and downtime of subsequent equipment. In this case, configuring a half-wet material crusher can stably process wet materials, prevent clumping and blockage, and ensure efficient and continuous operation.

organic fertilizer equipment

Scientifically designing a disc granulation production line: Key steps and core considerations

by organic fertilizer production line

Disc granulation production lines have become the mainstream choice for organic and compound fertilizer production due to their high granulation rate, convenient operation, and adaptability to various fertilizer types. Building an efficient and stable production line requires careful consideration of initial planning, equipment matching, and process integration.

Initial planning requires precise needs assessment. First, clearly define the production capacity target and determine the model and specifications of the disc granulator based on your production scale, avoiding overcapacity or undercapacity. Second, analyze the characteristics ofthe raw materials, predicting the granulation difficulty based on parameters such as moisture content, particle size, and viscosity, providing a basis for subsequent equipment debugging and process setting. Simultaneously, plan the site layout rationally, reserving space for equipment installation, material transportation, and future maintenance to ensure a smooth production process.

Matching core equipment is crucial. In addition to the core disc granulator, suitable pre-processing equipment (crushers, mixers) and post-processing equipment (dryers, screening machines) are necessary: raw materials are crushed to a uniform particle size, then mixed and conditioned using a fertilizer mixer machine to improve granulation efficiency; the granulated wet particles need to be dried to remove excess moisture, and then screened to select particles of the correct size. It is essential that the capacity of all equipment is matched to avoid any single stage becoming a production bottleneck.

Post-installation debugging and standardized operation are indispensable. After the production line is built, small-scale trial production is necessary to adjust parameters such as disc rotation speed, inclination angle, and material moisture content until the granulation rate and uniformity meet the standards; simultaneously, establishing standardized operating procedures and regularly maintaining the equipment will ensure the long-term stable operation of the production line.

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