fertilizer production line – Page 15 – fertilizer production line

Trough Compost Turner: Efficient Solution for Organic Waste Fermentation

Written by fertilizer production line on October 24th, 2025. Leave a comment

Equipment Overview

The trough compost turner represents a cornerstone technology in modern organic processing systems, serving as specialized equipment designed for optimized fermentation processing. Through its unique reciprocating motion mechanism, this machine utilizes turning teeth on mechanical arms to thoroughly aerate materials within fermentation tanks, creating ideal conditions for microbial activity and accelerated decomposition.

In comprehensive bio organic fertilizer production facilities, multiple equipment variants work in synergy. While the trough compost turner operates within contained channels, the large wheel compost turner offers exceptional mobility for larger-scale operations, and the chain compost turner provides robust performance for high-volume processing. These essential compost fertilizer machine solutions form the backbone of efficient organic waste transformation systems.

The complete equipments required for biofertilizer production extend beyond turning mechanisms to include specialized processing units. Following the fermentation phase, materials typically progress to a disc granulation production line, where compost is shaped into uniform granules for commercial distribution. This integrated approach ensures that organic matter undergoes complete transformation from raw material to valuable agricultural amendment.

Modern large wheel compost turning machine innovations have significantly enhanced processing efficiency, featuring adjustable working depths and automated control systems. As a crucial fertilizer production machine category, these turners facilitate critical functions including temperature regulation, moisture control, and oxygen infusion – all vital parameters for successful composting. The continuous development of compost fertilizer machine technology continues to advance sustainable agriculture practices worldwide, supporting circular economy initiatives and reducing environmental impact through efficient organic waste valorization.

Technical Advantages

Compared to traditional manual turning or ground composting methods, the trough compost turner adopts a trough structure design that enables continuous fermentation operations, greatly improves fermentation efficiency, significantly shortens the fermentation cycle, and effectively controls odor and pollution during the fermentation process, making it one of the key equipment for large-scale organic fertilizer production.

Applicable Raw Material Range

Livestock and Poultry Manure

Including chicken, pig, cow, and sheep manure, these materials are rich in organic matter and nutrients such as nitrogen, phosphorus, and potassium, making them excellent raw materials for organic fertilizer production. Through the turning action of the trough compost turner, the manure undergoes complete fermentation, eliminating pathogens, insect eggs, and weed seeds while removing odors.

Crop Straw

Corn straw, wheat straw, rice straw, etc., contain large amounts of cellulose, hemicellulose, and lignin, which can be converted into organic matter in organic fertilizer through fermentation. The trough compost turner can evenly mix straw with other raw materials to promote straw decomposition and maturation.

Edible Mushroom Residue

Mushroom cultivation residue rich in mycelium and underutilized nutrients serves as high-quality organic fermentation raw material. After processing in the compost turner, it can be made into highly effective organic fertilizer.

Industrial Organic Waste

Including organic by-products from industrial production processes such as distiller’s grains, vinegar residue, sugar residue, and oil residue. These wastes contain certain organic matter and nutrients and can be recycled after fermentation in a trough compost turner.

Municipal Sludge

Sludge generated by municipal sewage treatment plants contains substantial organic matter but may also contain harmful substances like heavy metals. It must undergo rigorous testing and treatment before being used as fermentation raw material. The trough compost turner can thoroughly ferment the sludge, reduce its moisture content, and stabilize its properties.

Environmental Benefits

The widespread application of trough compost turners not only improves the efficiency of organic waste treatment but also enables resource recycling. Through scientific fermentation processing, various organic wastes are transformed from waste to valuable resources, reducing environmental pollution while providing high-quality organic fertilizer for agricultural production, aligning with sustainable development principles.

Complete Guide to NPK Fertilizer Production Technology

Written by fertilizer production line on October 24th, 2025. Leave a comment

Production Process Overview

The NPK fertilizer manufacturing process involves transforming raw materials containing nitrogen, phosphorus, and potassium into granular or powdered compound fertilizers through an integrated NPK fertilizer production line. The complete manufacturing of NPK fertilizer includes key steps such as batching, mixing, and granulation, followed by processing stages like drying, cooling, screening, coating, and packaging.

Raw Material Processing and Mixing System

In the initial stage of the NPK production process, the NPK blending machine plays a crucial role. This specialized fertilizer mixer machine ensures uniform distribution of various raw materials, laying the foundation for subsequent fertilizer granulation processes. For bulk blending fertilizer machines, precise ingredient proportions are key to ensuring fertilizer quality.

Modern NPK fertilizer production lines utilize automated control systems to ensure optimal batching accuracy and mixing uniformity in NPK blending machines.

Granulation Technology and Equipment Selection

NPK fertilizer granulator machines mainly follow two process routes: wet granulation and dry granulation. Wet granulation uses rotary drum granulators or disc granulator machines, requiring subsequent drying and cooling processes; while dry granulation employs roller extrusion pelletizers, eliminating the need for drying equipment.

· Disc granulator: Forms uniform granules through centrifugal force in rotating pans

· Rotary drum granulator: Completes granulation process within rotating drums

· NPK granulation machine: Specialized equipment designed specifically for compound fertilizers

Production Line Configuration and Optimization

A complete NPK fertilizer production line includes several key pieces of equipment: from the NPK mixer to the NPK fertilizer granulator to the bulk fertilizer mixer, each link requires precise coordination. In NPK fertilizer production, the disc granulator is highly favored due to its simple operation and easy maintenance.

Choosing the appropriate NPK fertilizer machine not only affects production efficiency but also directly relates to the quality of the final product and market competitiveness.

Technological Innovation and Development Trends

With the continuous advancement of NPK fertilizer production technology, modern NPK fertilizer production lines are developing towards intelligent and energy-saving directions. New NPK granulator machines show significant improvements in energy consumption control and particle uniformity, while the automation level of disc granulators continues to improve.

In the manufacturing of NPK fertilizer, innovation in fertilizer granulation technology is particularly crucial. By optimizing the working parameters of NPK fertilizer granulators, superior fertilizer products better suited to modern agricultural needs can be produced.

Quality Control and Environmental Requirements

During the NPK fertilizer production process, strict quality control systems ensure that every step from the NPK blending machine to the NPK fertilizer granulator meets standards. Meanwhile, modern NPK fertilizer production lines also pay special attention to environmental requirements, reducing energy consumption and emissions through optimized fertilizer granulation processes.

Double roller press granulators: A key force driving green upgrades in the fertilizer industry

Written by fertilizer production line on October 24th, 2025. Leave a comment

The application of double roller press granulators(fertilizer compaction machines) is reshaping the fertilizer production landscape in multiple dimensions and becoming a crucial support for sustainable agricultural development. Their most significant value lies in their waste resource utilization, transforming organic waste such as livestock and poultry manure and straw into granular fertilizer, significantly reducing reliance on chemical fertilizers.

On the production side, this double roller press granulator offers particularly outstanding environmental advantages. The ambient temperature granulation process eliminates the need for fuel oil or gas drying, eliminating the three wastes emitted throughout the process and eliminating the secondary pollution associated with traditional composting. Furthermore, granulation results in a more uniform nutrient distribution and optimal bulkiness in the fertilizer, increasing plant absorption by over 15% compared to traditional bulk fertilizers and reducing dust loss during transportation and storage.

Equally crucial is its industrial adaptability: A single unit can be used for small production lines, or it can be combined into large-scale units with an hourly output of 50 tons, flexibly meeting diverse scale requirements. From rare earth fertilizers and potash fertilizers to bio-organic fertilizers, double roller press granulators can accommodate a wide range of formulations and even fills a technological gap in the granulation of some specialty compound fertilizers. This combination of flexibility and environmental protection accelerates the transformation of traditional fertilizer production towards green and efficient production.

Rotary Drum Granulator: core equipment for NPK fertilizer production

Written by fertilizer production line on October 24th, 2025. Leave a comment

Equipment Applicability and Production Scope

The rotary drum granulator performs most effectively in NPK production lines, particularly suitable for producing compound fertilizers. This fertilizer production machine efficiently processes various raw material combinations through drum granulation technology, making it an indispensable core component in modern NPK fertilizer production technology.

Main Raw Materials and Formula Requirements

In the NPK manufacturing process, the drum granulator primarily processes basic raw materials such as nitrogen, phosphorus, and potassium sources, including urea, ammonium sulfate, monoammonium phosphate, and potassium chloride. Unlike traditional fertilizer compaction processes, drum granulation doesn’t require high-pressure fertilizer compaction machines, instead forming granules through an agglomeration principle.

Compared to fertilizer granules compaction technology, the rotary drum granulator is more suitable for processing raw materials containing organic matter, producing fertilizer granules with a looser structure that are more easily absorbed by crops.

Detailed Production Process Flow

The complete NPK fertilizer production process begins with raw material pretreatment. During drum granulation, materials are precisely proportioned before entering the mixer to ensure uniform ingredient distribution. The material is then fed into the rotary drum granulator through a feeding device, forming granules under the rotating action of the drum.

In the fertilizer production machine system, the process parameters of the drum granulator require precise control:

· Drum rotation speed: 10-20 RPM

· Tilt angle: 2-5 degrees

· Water addition amount: Adjusted according to raw material characteristics

· Particle diameter: Adjustable between 1-6 mm

Production Requirements and Technical Advantages

The NPK production line requirements for the rotary drum granulator include controlling raw material particle size between 0.1-1 mm and achieving mixing uniformity above 95%. Advanced NPK fertilizer production technology requires precise control of binder addition during granulation to ensure appropriate particle strength.

Compared to traditional fertilizer compaction processes, the rotary drum granulator offers advantages of lower energy consumption, regular particle shape, and uniform nutrient distribution in the NPK manufacturing process, making it the preferred choice for modern fertilizer production machines.

Post-processing and Quality Assurance

In the NPK fertilizer production process, wet granules after granulation require immediate drying to reduce moisture content below 10%. The cooling and screening stage ensures particles reach room temperature, with screening equipment separating non-conforming particles. The quality control system throughout the NPK production line ensures the excellent quality of the final product.

By optimizing drum granulation process parameters, NPK fertilizer production technology continues to advance, providing efficient and environmentally friendly fertilizer solutions for global agriculture. The innovative application of this fertilizer production machine promotes the development of the fertilizer industry toward more sustainable directions.

BB fertilizer mixers: Key equipment for ensuring uniform nutrient distribution in blended fertilizers

Written by fertilizer production line on October 24th, 2025. Leave a comment

In BB fertilizer (blended fertilizer) production, the BB fertilizer mixer is a key piece of equipment that determines product quality. Its core function is to evenly blend multiple raw materials of varying density and particle size into a nutrient-consistent fertilizer, directly impacting subsequent fertilization effectiveness.

In terms of equipment structure, mainstream BB fertilizer mixers mostly adopt a closed-cylinder design with an internal mixing assembly. The cylinder is typically positioned horizontally, with the mixing assembly driven by a motor. Some BB fertilizer mixers also feature forward and reverse rotation to reduce residual material in the cylinder. The feed inlet is typically located at the top of the cylinder, and the discharge outlet at the bottom. Some models feature an observation window for easily monitoring the mixing status.

During operation, raw materials such as urea, monoammonium phosphate, and potassium chloride are introduced into the mixing cylinder according to the formulated ratio. The rotating mixing assembly propels the raw materials: the screw conveys the raw materials from both ends toward the center, the paddles shear and stir the raw materials, and the guide plates facilitate convection, ensuring full contact between raw materials with density differences of 30%-50%. The entire process does not require the addition of adhesives, and mechanical force is used to achieve “small particles filling gaps and large particles colliding with each other”, ultimately achieving a uniform mixing effect.

Chain crusher: An all-round aid for material crushing in multiple industries

Written by fertilizer production line on October 24th, 2025. Leave a comment

Chain crushers are not limited to organic fertilizer production; they also play a vital role in a variety of industries, including chemicals, building materials, and mining. They are truly versatile tools for material crushing in various industries, their flexible adaptability enabling them to deliver outstanding performance in diverse production scenarios.

In the chemical industry, they can pre-process and crush various medium-hardness industrial raw materials (such as sulfur lumps and soda ash agglomerates), providing uniformly sized materials for subsequent chemical reactions or processing steps. This prevents incomplete reactions caused by uneven raw material size and improves the quality and stability of chemical products.

In the building materials sector, chain crushers offer efficient crushing of materials such as limestone and shale. They can adjust the output particle size to meet the diverse particle size requirements of building materials production, such as cement and bricks.

In the mining industry, their high adaptability is particularly evident when dealing with ores of varying hardness, allowing crushing parameters to be adjusted based on the ore’s characteristics to ensure optimal crushing results.

In addition, this chain crusher can also be used in scenarios such as agricultural fertilizer crushing. With its wide applicability, it has become an important equipment in the material crushing process of various industries.

Fertilizer granulator machines: Adaptation strategies for different fertilizer types

Written by fertilizer production line on October 24th, 2025. Leave a comment

Many fertilizer companies switch product categories based on market demand. However, if the compatibility of the fertilizer granulator machine with the fertilizer type is neglected, problems such as reduced granule quality and frequent equipment failures can occur.

For organic fertilizers (including straw and fermented manure), the key requirement is “adaptability to the fiber raw material and avoid entanglement and machine blockage.” Flat die granulators or rotary drum granulators are preferred. The vertical extrusion design of the flat die cuts long fibers, and the trapezoidal, non-slip rollers reduce fiber entanglement. Rotary drum granulators use rolling to form the granules, and the lifting plate evenly lifts the fiber material to avoid localized accumulation.

For compound fertilizers (containing phosphate rock and potassium chloride), the key requirements are “high granule hardness and transport resistance.” The high compression ratio of the ring die granulator allows hard mineral raw materials to be extruded with a compressive strength of over 15N, meeting the requirements of long-distance transportation.

For biofertilizers (containing functional microbial agents), the key principle is “low-temperature granulation to protect the activity of the agents.” A flat die granulator (chamber temperature ≤ 40°C) or a disc granulator (rolling, no high-temperature extrusion) can prevent inactivation of microbial agents.

For slow-release fertilizers (including coating materials), “smooth granules suitable for subsequent coating” are required. The rolling forming method of a rotary drum granulator produces smooth, uniformly sized granules, which prevent the coating from detaching during coating.

Hydraulic Roller Granulator: Technological Innovation in High-Pressure Granulation

Written by fertilizer production line on October 23rd, 2025. Leave a comment

How to Achieve Efficient Granulation Through Hydraulic Technology? Explore the Unique Advantages of High-Pressure Granulation

Technological Breakthrough in High-Pressure Granulation

In today’s granulation technology field, the hydraulic double roller granulator has become essential equipment across numerous industries due to its unique working principle and exceptional performance. This innovative fertilizer roller press machine utilizes hydraulic systems to drive counter-rotating pressure rollers, applying extreme pressure to materials, causing plastic deformation and bonding to achieve highly efficient compaction granulation.

The double roller press granulator serves as a versatile NPK fertilizer granulator for chemical production and equally functions as an effective organic fertilizer granulator for biological materials. Unlike the tumbling action of a rotary drum granulator that forms spheres through agitation, this press technology creates granules through direct compression. Within a complete NPK production line, the roller press system provides distinct advantages for specific material formulations, offering an alternative granulation method that complements other equipment for comprehensive production flexibility.

Wide Range of Applications

The exceptional adaptability of hydraulic roller granulators enables them to process various dry powders, slightly wet powders, and partially viscous materials, playing important roles in multiple industrial fields.

Fertilizer Industry

Granulation processing of fertilizers including compound fertilizers, phosphate fertilizers, and potassium fertilizers to enhance fertilizer quality and effectiveness

Chemical Industry

Precision granulation of chemical products such as catalysts, dyes, and additives to optimize product performance

Metallurgical Industry

Granulation processing of metallurgical raw materials including iron powder and mineral powder to improve raw material utilization

Food Industry

Granulation processing of food ingredients including seasonings and additives to ensure product safety and hygiene

Precision Structure: Six Core Systems

The outstanding performance of hydraulic roller granulators stems from their six meticulously designed core systems, each precisely calculated and optimally configured.

Roller Assembly

Consists of two sets of counter-rotating pressure rollers that control particle size and density through precise adjustment of roller spacing and pressure, ensuring stable product quality

Hydraulic System

Provides stable high-pressure power for the pressure rollers, ensuring continuity and stability of the granulation process for efficient production

Feeding System

Enables uniform and continuous feeding of materials between rollers, providing stable raw material supply for the granulation process

Control System

Monitors and adjusts parameters such as pressure, speed, and temperature in real-time to ensure precise control of the granulation process

Frame and Support

Provides stable structural support to ensure smooth and safe equipment operation

Crushing and Screening System

Optional configuration for processing non-conforming particles generated during granulation to ensure product consistency

Technological Innovation and Process Advantages

The core technical advantage of hydraulic roller granulators lies in their unique hydraulic drive system and precision control technology. Compared with traditional granulation equipment, hydraulic systems can provide more stable and precise pressure control, ensuring each particle has consistent density and strength. This high-pressure granulation method requires no binder additives, relying entirely on the material’s own plastic deformation to achieve particle formation, ensuring product purity while reducing production costs.

More importantly, while improving production efficiency, hydraulic roller granulators also feature excellent energy utilization efficiency. Their modular design makes equipment maintenance more convenient, while the intelligent control system significantly reduces operational difficulty. From fertilizers to chemical products, from metallurgical raw materials to food additives, this innovative granulation equipment is providing more efficient and reliable granulation solutions for various industries.

Windrow compost turning machines: Breaking site constraints and adapting to flexible fermentation

Written by fertilizer production line on October 23rd, 2025. Leave a comment

The core of aerobic fermentation of organic fertilizers lies in uniform oxygen supply and temperature-controlled composting. The site adaptability of compost turning equipment directly determines fermentation efficiency and production flexibility. Windrow compost turning machines, with their trackless mobility and all-terrain adaptability, are a perfect fit for the diverse fermentation scenarios in the fertilizer industry.

From a structural perspective, the core advantage of windrow compost turning machines lies in the synergy between their crawler chassis and flexible turning mechanism. Their wide rubber tracks provide a large contact area and low ground pressure, preventing the vehicle from getting stuck even in muddy composting areas or gravel surfaces after rain, eliminating the need for pre-leveling. The chassis’ steering system supports 360° steering, making it easy to navigate obstacles such as raw material piles and equipment around the fermentation area.

In terms of the turning mechanism, most windrow compost turning machines are equipped with double-auger or blade-type turning components, capable of turning compost up to 1.2-2 meters deep and covering compost piles up to 3-5 meters wide. During operation, the equipment slowly moves along the fermentation pile. The turning components throw the bottom material upward and disperse it to the sides, creating a “rolling up and down, mixing side to side” effect. This not only provides sufficient oxygen for aerobic bacteria but also quickly dissipates the heat generated by fermentation.

For fertilizer companies, the value of a windrow compost turning machine lies not only in its flexibility but also in its ability to accommodate multiple fermentation batches. For example, the same site can simultaneously process both a “fresh feed pile” and a “mature compost pile,” allowing the equipment to flexibly switch between different piles, resulting in fermentation efficiency improvements of over 30% compared to track-type compost turners.

Fertilizer granulators: How to adapt to the special production requirements of functional fertilizers?

Written by fertilizer production line on October 23rd, 2025. Leave a comment

As the fertilizer industry upgrades toward “precision and functionalization,” demand for functional fertilizers such as slow-release fertilizers, biofertilizers, and trace element compound fertilizers has surged. The production of these fertilizers places special demands on granulators, balancing functional retention and granule formation.

For slow-release fertilizer production, fertilizer granulators must meet the dual requirements of “granule formation” and subsequent coating. For example, when producing sulfur-coated slow-release fertilizers, the granulation process requires producing base granules with a smooth surface and uniform hardness. The “rolling forming” feature of a rotary drum granulator is perfectly suited for this purpose. By controlling the drum speed (8-12 rpm) and the amount of binder used, the granules are naturally rounded and smooth. Some granulators also feature a “pre-cooling section” at the discharge port to reduce the granule temperature to below 30°C, paving the way for subsequent coating and preventing the coating material from melting and becoming ineffective due to high temperatures.

For compound fertilizers containing trace elements, fertilizer granulators must address the issue of uneven trace element distribution. These fertilizers contain low concentrations of trace elements such as zinc, boron, and iron. Inhomogeneous mixing can lead to nutrient deficiencies in some granules. In this case, the low-speed extrusion design of a flat die granulator is optimal. After thoroughly mixing the trace elements with the base raw materials in a twin-shaft premixer, the low-speed rollers slowly extrude the granules into shape, minimizing material separation and ensuring a trace element content variation of ≤0.1% per granule, thus preventing functional deficiencies.

For biofertilizers, the granulator’s low-temperature performance is crucial. Flat die and disc granulators utilize a low-friction, no-high-temperature extrusion design to maintain a temperature within the granulation chamber below 40°C, ensuring the survival rate of the microbial inoculant.