Differences in the processing of granular and powdered fertilizers in organic fertilizer production lines

fertilizer granulator Nov 18, 2023

The organic fertilizer production line mainly uses the materials with high content of organic matter to be processed into commercial organic fertilizer after fermentation pretreatment (the appearance of the organic fertilizer is brown or grayish brown powder, no mechanical impurities, no odor). At the same time, the fertilizer production line of organic fertilizer can plan the relevant process according to the different raw materials, storage capacity, usable amount, market demand, etc They are powder fertilizer and granular fertilizer. What are the advantages of granular organic fertilizer over powdered organic fertilizer?

1. For the granular fertilizer produced by the organic fertilizer granulator machine, it is very important to master the particle size distribution of the fertilizer for the storage and transportation of the fertilizer. The granularity is good, and the organic fertilizer is difficult to assemble and has good transportation characteristics.
2. Low water soluble fertilizers usually grind small particles to ensure that they melt reasonably and rapidly in the soil layer and are digested and absorbed by green plants.
3. The granulation of fertilizer improves the production process of agriculture and animal husbandry. The granulation of fertilizer has the function of slow-release fertilizer, which is convenient and not easy to be blown away by the wind.
4. The organic fertilizer production line can add some inorganic components to improve the fertility of the organic fertilizer, while the powder fertilizer and inorganic components can easily digest and absorb water and lump materials.

The granulation process and advantages of the cow and sheep manure stirring tooth granulator

fertilizer granulator Nov 18, 2023

The specialized granulation equipment for organic and compound fertilizers utilizes the high-speed rotating mechanical stirring force and the resulting aerodynamic force to continuously mix, granulate, spheroidize, extrude, collide, compact, and polish fine powder materials in the machine, achieving pure organic granulation. No adhesive is added during granulation, and the moisture content of the raw materials can be around 20-40%, thus achieving the purpose of granulation.

The rotating stirring tooth granulator for cow and sheep manure cylinder is a molding machine that can manufacture materials into specific shapes. The drum granulator is one of the key equipment in the compound fertilizer industry, suitable for cold and hot granulation as well as large-scale production of high, medium and low concentration compound fertilizers. The main working method is wet granulation of pellets. By using a certain amount of water or steam, the basic fertilizer is humidified in the cylinder and undergoes a thorough chemical reaction. Under certain liquid phase conditions, with the help of the rotational motion of the cylinder, the material particles are squeezed and agglomerated into balls.

The rotating stirring teeth granulator for cow and sheep manure cylinder adopts a special rubber plate lining or acid resistant stainless steel lining plate, achieving automatic scar removal and tumor removal, and eliminating the traditional scraper device. This machine has the characteristics of high ball forming strength, good appearance quality, corrosion resistance, wear resistance, low energy consumption, long service life, and convenient operation and maintenance. Performance parameters: Rotary drum granulator, which is equipped with steam, gas ammonia, or phosphoric acid or nitrogen solution, phosphoric acid ammonia slurry, and heavy calcium slurry, to complete the chemical reaction and heating process of compound fertilizer granulation in the cylinder; Alternatively, in the cold granulation process of adding a small amount of water to the compound fertilizer, the materials that need to be granulated are rotated through the cylinder, causing rolling rotation when there is no material in the cylinder, and then agglomerated into balls at a certain humidity and temperature to complete the granulation process.

The particle shape of the specialized granulation equipment for organic and compound fertilizers is spherical, with a particle size standard generally between 3-6mm and a granulation rate of ≥ 90%. The size of the particle diameter can be adjusted appropriately by the material mixing amount and the spindle speed. Generally, the lower the mixing amount, the higher the rotation speed, and the smaller the particles. The finer the basic particles of the material, the higher the sphericity of the particles, the better the ball forming quality, and the stronger the particles. After granulation, they can be sieved, reducing drying energy consumption. (Suitable raw materials for processing organic fertilizers include animal manure, waste residue, edible mushroom residue, sludge, crop straw, crude fiber, organic waste, etc.)

The price and process characteristics of hydraulic lifting slot type tipping machine

fertilizer granulator Nov 18, 2023

How much is the hydraulic lifting tank type fermentation tipping machine with multiple tanks and one machine? The multi tank one machine hydraulic lifting tank fermentation tipping machine adopts high-strength chain transmission, hydraulic control lifting, and track design. The use of multiple tanks one machine is to use fixed tank composting tipping equipment. The organic fertilizer fermentation tipping machine can be divided into 3 meters, 4 meters, 5 meters, 6 meters, 8 meters, 10 meters and other equipment according to the width of the tank. Generally, the tank height is about 1.2 meters to 1.5 meters, and can also be customized. Domestic equipment is mostly powered by electricity.

Multi tank one machine hydraulic lifting tank type fermentation tipping machine

1. The hydraulic lifting tank type fermentation tipping machine with multiple tanks and one machine can reach a stacking span of 2-15 meters, and the fermentation cycle is about 15-20 days. The length of the fermentation tank depends on the situation. It is possible to feed at the inlet every day and discharge at the other end. Feed and process daily.

The innovation of the multi tank, one machine hydraulic lifting tank type fermentation tipping machine is the new technology of long-distance stacking, which utilizes limited ground area to achieve large-scale harmless treatment of organic waste.

3. Compact structure, advanced technology, and the use of some beneficial microorganisms can promote the rapid decomposition of organic waste such as livestock manure. Adopting a unique tank type continuous aerobic fermentation technology, organic waste is quickly decomposed, dehydrated, sterilized, and deodorized, achieving the goal of harmless, resourceful, and reduced treatment, with low energy consumption and stable product quality.

4. The intelligent automatic control of the fermentation material turnover process by the multi tank, one machine hydraulic lifting type fermentation tipping machine. Under the action of the longitudinal and transverse walking mechanisms, the fermentation material produces a certain amount of turnover displacement in the tank, and the material gradually moves back in a continuous and equal distance in the tank, forming a continuous and good itching fermentation process. The stirring knife not only flips evenly and oxygenates, but also has the function of crushing materials.

5. The electronic control system of the multi tank, one machine hydraulic lifting tank fermentation tipping machine is advanced and reliable, easy to operate, and equipped with remote control, automatic, and manual functions

A major technological breakthrough of the multi tank, one machine hydraulic lifting tank fermentation tipping machine lies in the integration of the crushing function in the later stage of material fermentation. At the same time, oxygen enters during the stirring process, which can achieve one day heating, deodorization, and two days of sterilization.

The multi tank, one machine hydraulic lifting tank type fermentation tipping machine is an organic fertilizer fermentation equipment suitable for industrial fermentation treatment of organic solid substances such as livestock and poultry manure, mushroom fungi, household waste, sludge, crop straw, etc. It can also be used for various fermentation treatment ranges such as feed fermentation.

How to solve the problem of difficult granulation of disc granulators in fertilizer production lines

fertilizer granulator Nov 18, 2023

Disc granulator as an old machine, fertilizer granulator machine price concessions, experienced the test of a variety of materials, but any equipment will have advantages and disadvantages. With the diversification of raw materials, organic fertilizer equipment manufacturers are constantly developing new granulation equipment. Organic fertilizer granulator machine manufacturers help you solve the problem that the material is difficult to form in disc granulation.
In addition to the subjective factors of raw material composition, the particle forming of disc granulator is also closely related to the fineness of raw material, water content, the addition of auxiliary adhesive and the angle of disc operation. These problems should be constantly tried, according to their own material situation to achieve their own ratio, do some improvement, can achieve our expected value.

Characteristics of disc granulator in production line
1) The use of a unique combination of no power blade integration to reduce auxiliary power consumption.
2) The tilt angle of the large plate can be adjusted. The angle gasket is used for flexible and convenient adjustment.
3) The structure of disc granulator is novel and reasonable, and its weight and height are reduced.
4) The large plate is composed of plate body and plate section. Reduce the main motor power. The disc section can be adjusted up and down along the disc body.
5) When the feed ball is discharged, it can ensure that the feed ball will not be pulled or torn.
6) The whole organic fertilizer granulator machine is made up of non power combined blade for edge cleaning and bottom cleaning, angle cleaning blade for angle cleaning, combined with the unique treatment technology of plate body, with high pelletizing rate, no large mud mass, 90 degree ball diameter and 3-5mm particle size.

Fermentation process of chain plate tipping machine for harmless treatment of domestic sludge

fertilizer granulator Nov 18, 2023

Domestic sludge is generated from the treatment of domestic sewage, which is produced in residential toilets, kitchens, bathrooms, etc. Therefore, domestic sludge is “nutrient rich”. After fermentation, the organic matter content of domestic sludge is generally as high as 50% or more, with nutrient indicators such as nitrogen, phosphorus, and potassium ranging from 5% to 7%. However, the heavy metal content is very low, which meets the basic standards of organic fertilizer and can be fully used as fertilizer.

The harmless treatment chain plate tipping machine for household sludge is suitable for the trough aerobic composting of organic solid waste such as animal manure, sludge waste, straw, etc.

The walking system of the harmless treatment chain plate tipping machine for domestic sludge adopts the advantages of variable frequency speed regulation, good adaptability to different materials, stable operation, high tipping efficiency, and the ability to perform deep tank operations, effectively shortening the fermentation cycle, improving production efficiency and product quality. Adopting a variable frequency speed control walking system, it can adapt well to changes in workload.

The harmless treatment of domestic sludge chain plate tipping machine can flexibly adjust the walking speed based on material resistance, making the equipment more adaptable and flexible. Optional mobile crane can be used to achieve multi tank equipment operation. With the capacity of the equipment allowing, simply adding a fermentation tank can expand the production scale and improve the equipment’s value.

The working principle of the harmless treatment chain plate tipping machine for domestic sludge: This machine is designed reasonably, with low motor power consumption, and a high-quality hard faced gear reducer for transmission, with low noise and high efficiency. Key parts such as the chain are made of imported components, which are durable and durable. The lifting adopts an oil pressure device, and the depth of the pile can reach 1.8-2.0 meters. The vertical lifting height of the material can reach 2 meters, and it stays in the air for a long time without the need for aeration. Other forms of tipping machines can do what three fermentation tanks can do, using a chain plate tipping machine is enough.

Factors affecting the production of granular fertilizer by disc granulator

fertilizer granulator Nov 15, 2023

The disc granulator is widely used for conveying various non-sticky materials in powder, material or small pieces, such as coal powder, cement, clinker, fertilizer and other materials. The advantage is that the output is high, the price is low, the granulation is uniform, and the return rate is relatively low, fertilizer granulator machine price concessions, which leads to higher cost performance and is welcomed by the market. In the working process of the disc granulator, the main elements that affect the pellet quality are:

1. The diameter of the disc. The diameter of the disc is mainly determined by the output, and it is selected according to the production capacity and the supporting requirements of other equipment.
2. The speed of the disc.
3. The inclination angle of the disc. The inclination angle of the disc should be greater than the natural angle of repose of the wetted base material before granulation, otherwise, the material will stick to the disc and rotate with the disc, so that
Can not achieve the purpose of powder into balls on the disc.
4. The circle height of the disc. Once the diameter of the disc is determined, the circle height of the disc can basically be determined.
5. Water spray method. The more uniform the water spray, the more uniform the spherical particles.
6. The position of the scraper.
7. Feeding and watering position.

Specific granulation process of organic fertilizer production line in aquaculture farms

fertilizer granulator Nov 15, 2023

The trend of “livestock farms+organic fertilizer plants=organic planting” is a major development trend. As livestock farms, in order to deal with the problem of manure pollution in livestock farms, using organic fertilizer equipment to process manure into organic fertilizer is a relatively simple, low technical difficulty, and relatively low equipment investment cost treatment method. So how do small organic fertilizer processing plants process and produce standard, high-quality, and locally suitable organic fertilizers?

The specific operation process of the organic fertilizer production line is as follows:

1. Organic material fermentation and decomposition: Due to the high moisture content of fresh livestock and poultry manure, a large amount of auxiliary materials such as straw and husks are often added. During the stacking process, organic fertilizer fermentation equipment is used to flip, promote oxygen, evaporate excess water, and control the internal temperature of the pile to prevent the inactivation of beneficial bacteria.

2. Material crushing: Due to the need for standing for about a week to mature and decompose in the later stage of fermentation, a large amount of agglomeration and other phenomena will be generated, which is not conducive to the mixing, granulation and other stages in the later stage.

At the same time, in order to meet the fertilizer requirements of local soil and crops, a certain amount of N, P, K, and other composite fertilizers need to be added. These composite fertilizers need to be crushed in advance to facilitate the next step of mixing and stirring (if the tubers of straw and other materials are large before fermentation, simple crushing treatment should also be carried out to avoid affecting the normal operation of the tipping machine)

3. Mixing and stirring: Here, a horizontal mixer is mainly used for mixing. The fermented and evenly crushed organic materials are fully mixed with the composite fertilizer. The mixture is stirred every 3-5 minutes and then transported directly to the fertilizer granulator by a conveyor for granulation.

4. Fertilizer granulation: As the mixed material to be granulated is an organic and inorganic mixture, a new type of granulator will be selected for granulation. The granulator uses a rotating drum and internal stirring teeth to rotate at high speed, resulting in high pelletizing rate, high yield, and strong adaptability. When the production capacity is low, you can choose either a regular disc granulator or a toothed granulator. For specific information, you can contact our technical manager for a detailed introduction.

5. Drying and cooling: This is to quickly evaporate the excess water inside the particles, which is beneficial for packaging and bagging, and prolongs the storage cycle. If the production is small, only the dryer can be installed or this link can be ignored.

6. Screening and grading: According to one’s own needs, screening can be carried out, and products with consistent particle size and quality can be sold as finished products. This can improve the economic value of the product, while other small particles, semi-finished products, powders, etc. can be returned to the crushing process.

7. Customers can also perform processes such as rounding and granulation, coating and coating according to their needs, further enhancing the product value of their fertilizers.

The process flow of organic fertilizer production line can be reduced according to the actual situation of the breeding farm, and the production line of granular or powdered organic fertilizer can be selected according to the demand of surrounding markets.

The process of roller extrusion granulator and the role of roller skin

fertilizer granulator Nov 15, 2023

The roller extrusion granulator is widely used in fertilizer production due to its significant advantage of extrusion molding process. Usually npk fertilizer extrusion process is more commonly used. Due to the physical characteristics of npk fertilizer itself, the specific gravity of the granular fertilizer produced , Roundness and strength have all got good standards. All this is attributed to the roll skin of the extrusion granulator, and this article will take you to understand the relevant knowledge of the roll skin.
For the roller extrusion npk fertilizer granulator, it is the pair of roller skins that affects its granulation effect. Small round pits of the same depth are regularly distributed on the roller skin. When two round rollers rotate opposite to each other, the two half pits coincide with each other to form a hollow circular mold. In the production of fertilizer, the material is continuously pressed into these small round molds by the roller skin, thereby forming round particles. These particles are not only beautiful in appearance, but also strong, and will not be broken due to collision or pile pressure.

For granules, it is very important whether the small round pits on the surface of the roller skin of the npk fertilizer granulator are processed according to the standard. It not only affects the shaping of the fertilizer, but also affects whether the finished fertilizer is hulled. If the hulling is not smooth, the fertilizer will be It will stick to the small round pits and cannot be processed into finished round particles. Compared with the organic fertilizer extrusion granulator, the chemical fertilizer on the roll skin is not cleaned in time, and its corrosiveness will affect the roll skin.
Another thing about the roller skin is its material. The roller skin will be worn to a certain extent under the action of external force. Generally, good roll skins are made of high-grade materials and undergo a rigorous heat treatment process, which greatly improves the hardness of the roll skin of the extrusion granulator and prolongs its service life. 

Granulation equipment and methods for NPK fertilizer production line

fertilizer granulator Nov 15, 2023

Dry material mixing and granulation: In the early process of mixing solid powder materials to make powdered fertilizers, the process steps of granulation, drying, coarse-grain crushing and fine-grain return to continue granulation are added, and finally dry granules are obtained. Finished product. Urea-general calcium-potassium chloride aggregate type compound fertilizer belongs to this category.
Adding part of the dry powder of liquid raw materials for mixing and granulation: When mixing solid powder materials for granulation, the drum granulator introduces sulfuric acid, phosphoric acid or nitric acid, and supplements a certain amount of water vapor, and blows in gas ammonia to neutralize the added acid or neutralization. And acidic components in solid materials. Relying on the enthalpy brought in by the neutralization reaction heat, saturation and steam, the liquid phase (including the salt solution and water generated by the reaction) is introduced to promote agglomeration and granulation. The granulation of urea-ammonium phosphate-potassium chloride series and ammonium chloride-ammonium phosphate-potassium chloride series materials belongs to this category.

Slurry granulation process: The slurry produced by the reaction material is coated on the surface of the returned particles, and the particles are enlarged through continuous slurry coating, and then the particles are dried and evaporated to remove water, thereby obtaining a hard and Granular product with good fluidity. Due to the wide range of particle size distribution of the returned material, the coating and bonding effects always occur at the same time. For certain materials and npk fertilizer granulator models, a kind of granulation is always the dominant. The granulation of ammonium phosphate fertilizer belongs to this category.
Melt granulation process: the molten slurry (melt with very low moisture content) is cooled or condensed to make it into granules. Ammonium nitrate melt granulation belongs to this category.

Trial scope and working principle of organic fertilizer crusher

fertilizer granulator Nov 15, 2023

The organic fertilizer crusher is suitable for crushing block materials in the production of composite fertilizers, and is also widely used in industries such as chemical, building materials, mining, etc., especially for crushing high humidity materials with a water content of over 40%, such as fruits and vegetables, wine tank mushroom residue, traditional Chinese medicine residue, etc. This machine uses high-strength hard alloy chain plates and chains with synchronous rotational speed during the crushing process. The inlet and outlet design is reasonable, and the crushed materials are uniform, not easy to stick to walls, and easy to clean.

Working principle of organic fertilizer crusher: The peanut shell walnut shell organic fertilizer crusher adopts a two-stage rotor for upper and lower crushing, without the design of a screen bottom, a high alloy wear-resistant hammer head, and bidirectional gap adjustment technology. If the hammer is worn, it does not need to be repaired, and can be used continuously by moving the position of the hammer. Adjusting the gap between the hammer head and the lining plate can control the particle size of the material. Only one person is needed for easy operation, which is not only safe and reliable, but also convenient for maintenance. The material passes through the upper rotor crusher to form small particles, and then is transported to the lower rotor to continue crushing into fine powder, achieving the effect of material powder and hammer powder. Finally, the material is directly discharged from the discharge port.

After long-term use, the semi wet material crusher has been proven to be convenient to use, efficient, with large production capacity and simple maintenance. Suitable for crushing various block fertilizers and other medium hardness block materials. The chain crusher can crush undeveloped phosphate fertilizer, calcium superphosphate, and various phosphate compound fertilizer products with a moisture content of 14% and a free acid content of 6%. Many phosphate compound fertilizer production plants use vertical chain crushers and other crushers to bond materials to the inner wall of the machine casing during production operations, resulting in the inability to proceed with production. The horizontal chain crusher enables continuous production of the crushing process in the production of phosphate and compound fertilizers, improving production efficiency.