The drum granulator is a kind of granulating equipment commonly used in the production of compound fertilizer, Manure, biological fertilizer, controlled release fertilizer and other fertilizers. It is suitable for cold and hot granulation and 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 drum granulator of the compound fertilizer equipment adopts a special rubber plate lining or acid resistant stainless steel lining plate to achieve automatic scar removal and tumor removal, 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. A drum type granulator, in which steam, gas ammonia, or phosphoric acid or nitrogen solution, phosphorus ammonia slurry, and heavy calcium slurry are introduced 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.

Characteristics of compound fertilizer equipment drum granulator:

1. The ball forming rate reaches 70%, the ball forming strength is high, there is a small amount of returned material, and the particle size of the returned material is small, which can be re granulated;

2. Inject steam for heating, increase the temperature of the material, reduce the moisture content of the material after balling, and improve the drying efficiency;

3. The cylinder of the machine is lined with special rubber plates or acid resistant stainless steel plates, which are corrosion-resistant and wear-resistant. At the same time, it achieves automatic scar removal and tumor removal, eliminating the traditional scraper device.

The process of this equipment is to quantitatively add evenly mixed raw materials according to the formula into a rotary drum granulator, while injecting steam, to complete the chemical reaction of the composite fertilizer granulation process in the continuous rotation of the drum. It can also be applied to the cold water granulation of composite fertilizer with added water humidification, and is currently a relatively advanced composite fertilizer granulation equipment.

The biological fertilizer granulator is used for granulating various organic substances after fermentation, breaking through the traditional organic granulation process. The raw materials do not need to be dried and crushed before granulation, and spherical particles can be directly batched and processed, saving a lot of energy. Traditional fertilization and garbage fertilization methods not only cause certain harm to the environment, but also fail to fully utilize their effects. With the application of more and more Manure, compound fertilizer, microbial fertilizer and chemical fertilizer, granulating equipment such as biological fertilizer granulator has entered people’s life and production.

The disc granulator is a commonly used equipment in the compound fertilizer industry. When it works, the uniformly mixed raw materials enter the disc at a uniform speed. Under the combined action of gravity, centrifugal force, and friction between the materials, the material moves up and down in the disc until it reaches the specified particle size, and overflows from the edge of the disc. It has the characteristics of simple structure, high strength, easy maintenance, convenient use, high granulation rate, and uniform particle size.

As a fine-grained material feeding equipment, the disc granulator is suitable for transporting various non cohesive materials in powder, material or small pieces, such as coal powder, cement, clinker, limestone, shale, coal gangue, clay, and other powder, particle or small pieces of materials. It can be widely used in gold concentrators, coal mining plants, chemical, infrastructure, and mechanized casting workshops for continuous, uniform, and quantitative feeding and batching. The laboratory disc granulator has a simple structure, convenient adjustment, and superior performance. It is suitable for conveying materials with a particle size of no more than 50mm, and is not suitable for conveying materials with high viscosity, difficulty in flowing, and particularly good fluidity.

The small disc granulator adopts an overall circular arc structure, with a granulation rate of over 93; The granulation plate is equipped with three discharge ports, which facilitate intermittent production operations, greatly reducing labor intensity and improving labor efficiency; The reducer and motor are driven by flexible belts, ensuring smooth starting, reducing impact force, and improving equipment service life; The bottom of the disc granulation disc is reinforced with multiple radiating steel plates, which are sturdy and durable, and will never deform; The thickened, weighted, and sturdy base design eliminates the need for anchor bolts for stable operation.

Developing organic fertilizer to improve soil fertility has become an urgent task. The advanced fermentation technology adopts microbial aerobic fermentation, and the compost windrow turner is designed according to the principle of aerobic fermentation, so that the fermentation bacteria can give full play to their functions. If the manure pile is too high or bucket type machinery, tank type fermentation, etc., anaerobic state will be formed in the manure pile, so that the function of fermentation bacteria can not be fully played, affecting the quality of fertilizer and its production cycle. It is more suitable for the mechanism and technological requirements of microbial fermentation materials as fertilizer, and can effectively mix viscous materials with microbial agents and straw powder. To create a better aerobic environment for material fermentation.

There are many kinds of compost windrow turner, suitable for all kinds of sticky materials, such as filter material, mud, forage, furfural, straw, mushroom planting, etc. It can meet the needs of multi-layer organic fertilizer, mushroom planting and other producers. In this loose material property, the material starts to dry in 7-12 hours, temperature and three days, and becomes organic fertilizer in 5-7 days, which is not only faster than deep groove fermentation, but also effectively prevents hydrogen sulfide, amine, indole and other harmful gases from producing odor during fermentation, that is to say, it meets the requirements of environmental protection and can produce good bio organic fertilizer.
Strip stamp compost is a kind of production mode which can save civil engineering and manpower at present. It is necessary to pile the material into a long strip. The materials are regularly stirred and broken by the compost windrow turner, and the organic matters are decomposed under aerobic conditions. The compost windrow turner not only has crushing function, but also greatly saves time and manpower, greatly improves the production efficiency and product quality of the organic fertilizer plant, and greatly reduces the cost. Some auxiliary facilities can also be added, such as automatic spraying device. The compost windrow turner adopts four-wheel walking design, which can reverse, advance, turn and drive by one person. In the process of operation, the whole vehicle is installed on a long strip of fertilizer base, and is stacked first. The rotating knife shaft installed under the frame is used for mixing, fluffing and moving fertilizer based materials. After the vehicle passes, a new strip pile is formed. 

With the issuance of agricultural policies, it is necessary to fundamentally improve the pollution problem in agriculture and animal husbandry. A large amount of livestock manure produced by the farm is used to produce green Manure. Manure is returned to the field to plant organic agriculture. Agricultural wastes and agricultural fruits are fed to various livestock and poultry to form a natural green ecological chain, maintain Balance of nature, and let us find a new life in the field.

Chicken manure is a relatively high-quality Manure, which contains about 1.63%, 1.54% and 0.085% of pure nitrogen, phosphorus (P2O5) and potassium (K2O). Chicken manure must undergo decomposition with a decomposition agent before application, which inactivates and deodorizes the parasites, eggs, and infectious bacteria present in chicken manure through the process of decomposition. The technological process of chicken manure Organic fertilizer production line is closely related to the configuration of Organic fertilizer production equipment. Generally, the complete equipment of Organic fertilizer production line is mainly composed of fermentation system, drying system, deodorization and dust removal system, grinding system, batching system, mixing system, granulation system, screening system and finished product packaging system. The production process of chicken manure Manure roughly includes: raw material selection (chicken manure, etc.) → drying and sterilization → ingredients mixing → granulation → cooling and screening → metering and sealing → warehousing of finished products.

Equipment and process flow of livestock manure manufacturing Organic fertilizer:

1. Ground stacking, using a ground tipping machine, or feeding materials in a fermentation tank, or using a trough composting machine

2. Evenly sprinkle the bacterial agent, ferment in a pile to achieve heating, odor removal, maturation, and killing of miscellaneous bacteria and grass seeds

3. Fermentation takes 7-12 days, and the number of times the pile is flipped varies depending on the temperature in different regions

4. Completely fermented and matured, discharged from the tank (ground type, directly stacked with a forklift)

5. Use a grading screen for coarse and fine screening (the screened powdered fertilizer can be sold directly)

6. Crush the selected large blocks with a grinder and return them to the grading screen

7. Mix the required trace elements with a pre mixer

8. Granulation with Organic fertilizer granulator

9. Feed into dryer and cooler

10. Automatic packaging machine packaging and sales

Drum screening machine, also known as cylindrical rotary screen, cage drum screening machine, sand and gravel drum screen, drum screening sand machine, etc., is a high-precision non vibrating large-scale screening equipment. By using a variable speed deceleration system, the screening cylinder rotates at a certain speed, and materials are separated from top to bottom through the screening cylinder. Fine materials are discharged from the lower part of the front end of the screening cylinder, while coarse materials are discharged from the tail end of the lower end of the screening cylinder. Its structure is simple, its processing capacity is large, and it is suitable for both dry and wet materials.

Since the drying temperature of Manure cannot exceed 80 °, our dryer adopts the hot air drying mode.

1. The dryer has strong overload resistance, large processing capacity, low fuel consumption, and low drying cost;

2. The operating parameters can be changed according to different material properties, so that sawdust and sawdust materials can form a stable full cut fabric curtain in the dryer cylinder, allowing for more complete mass and heat exchange;

3. The new feeding and discharging device eliminates the phenomenon of blocked, discontinuous, uneven, and returned materials in the drum dryer, reducing the load of the dust removal system;

4. The new internal structure strengthens the cleaning and heat conduction of dispersed materials, eliminates the sticking phenomenon on the inner wall of the cylinder, and has stronger adaptability to material moisture and viscosity.

According to different grading requirements, the grading stages of Manure drum screener are generally 1-4 sections from fine to coarse, and the materials are screened from the first section to the last section of screen from fine to coarse, and the materials larger than the first section of screen holes are discharged from the outlet.

Rotating screening part: all Manure drum screening machines adopt combined screens, which are transmitted to the main shaft through the coupling by the driving wheel, and the screens are installed on the roll cage welded to the main shaft. The material enters from the feeding end, rotates continuously through the rolling cage, is graded, and evenly flows out from the lower outlet, effectively separating the finished product from the returned material, thereby reducing labor intensity. Rotating connection part: The electric motor drives the pulley, triangular belt, and reducer to rotate and work the main shaft. The transmission reducer and the working part of the main shaft are uniformly driven by a column pin coupling, which is convenient for assembly and maintenance.

The Manure drum screening machine has been commissioned before leaving the factory, passed strict technical inspection and specific process requirements, and can leave the factory after being approved as qualified. The Manure drum screening machine runs in balance during the working process and will not cause damage to the machine. There is no need to adjust the solid. If the material grading is uneven in the use process, replace the combined screen.

The crawler type compost windrow turner can effectively solve the environmental pollution caused by organic waste in livestock and poultry farming, reduce the eutrophication of surface water bodies caused by pollution, and help improve the safety and quality of agricultural products. Organic food lays a good foundation.

Characteristics of crawler type compost windrow turner
1. The crawler type compost turning machine is low in cost, easy to operate, and fully automated production equipment. According to different seasons and weather temperatures, the equipment starts the heat preservation device and the oxygen supply system as needed to create an environment suitable for the growth of bacteria, and uses aerobic fermentation The fermentation heat is fully used and the speed is fast. The fermentation cycle is only 5-7 days. The fermentation process is not affected by the seasonal climate and can operate all day. It can be installed in the farm and treated on the same day.
2. Crawler type compost windrow turner has the advantages of low energy consumption, small floor area, no peculiar smell in operation environment, zero pollution, good ventilation, and deodorization in only 1-2 days.
3. The crawler type compost windrow turner is compact in structure and advanced in technology. It uses harmless living bacteria preparation to treat livestock and poultry excrement, ferments under the action of a variety of beneficial microorganisms, decomposes the organic matter fully, releases nutrients, and the formed biological heat and high temperature fermentation process can kill bacteria and insect eggs, remove toxins and odors, purify the environment, achieve harmless, resource-based and industrial use Low energy consumption and stable product quality.
4. The intelligent automatic control tipping mechanism mixes the fertilizer and additives in the working process to reach the tipping and feeding indexes, and then throws the overturned organic fertilizer to 3m-4m behind the equipment for fermentation and microbial propagation. Under the function of lifting and walking mechanism, it automatically returns to the starting working position to reduce the operating cost.

The fermentation process of compound fertilizer equipment mainly involves mixing organic solid waste with a moisture content of less than 60%, auxiliary materials (such as plant straw), microbial fermentation agents, etc. evenly, and using pool type aerobic continuous fermentation to fully decompose, sterilize, deodorize, and remove water. The moisture content of the decomposed material is generally 30-35%. After screening and magnetic separation, it can be directly used to produce spherical Manure or powder Manure after further drying.

The process flow of the compound fertilizer production line can be divided into: raw material batching, raw material mixing, raw material granulation, particle drying, particle cooling, particle grading, finished product coating, and finished product packaging.

Characteristics of compound fertilizer equipment:

1. Applicability and wide range of raw materials: it is suitable for direct granulation of fermented livestock manure, sugar factory filter sludge, urban sludge, paper making sludge, distiller’s grains, straw, peat and other coarse fiber organic wastes with water content of about 30%, and can produce spherical pure Manure, organic and inorganic fertilizer, and biological Manure.

2. High balling rate and microbial survival rate: The new process can achieve a balling rate of over 90% -95%, and the new technology of low-temperature and high air drying can achieve a microbial survival rate of over 90%.

3. The process flow is short and the operating cost is low. The organic raw materials used in this process do not require pre-treatment such as drying and crushing. The process flow is short and the operating cost is low (if traditional granulation processes such as disc or drum are used, the organic raw materials with a moisture content of about 30% after fermentation need to be dried to below 13% and crushed to over 80 mesh, and the amount of organic materials added cannot exceed 30%).

The production process of high concentration composite fertilizers using drum granulators, the production process of high, medium, and low concentration composite fertilizers using disc granulators, the anti caking technology of composite fertilizers, the production technology of high nitrogen composite fertilizers, and the production technology of organic and inorganic composite fertilizers using urea melt spray granulation, etc.

Crawler type composting machines are more suitable for the mechanism and process requirements of microbial fermentation material composting, and can effectively mix viscous materials with microbial agents and straw powder. Creating a better aerobic environment for material fermentation. Under this loose material property, the materials can be deodorized in 7-12 hours, heated in one day, dried in three days, and fertilized in five to seven days, which is not only much faster than deep tank fermentation, but also effectively prevent the production of hydrogen sulfide, amine gas, indole and other harmful and malodorous gases in the fermentation process, which not only meets the environmental requirements, but also can produce superior biological Manure.

The tracked composter adopts a four-wheel walking design, which can move forward, reverse, and turn, and is operated and driven by one person. During driving, the entire vehicle is mounted on a long strip fertilizer machine, and a rotating knife is hung under the machine to mix, fluff, and move the raw materials of the fertilizer machine. After passing by, a new strip pile is formed, which can be operated in an open field or in a workshop greenhouse.

The crawler type composting machine is equipped with rollers and knife shaped teeth, mainly used for flat stacking fermentation. It has dual functions of flipping and crushing. It can evenly mix materials and bacterial strains such as fecal base materials and sludge, and effectively crush the plate lumps in the fermented materials. It is an essential specialized tool in fertilizer production operations.

(1) Crawler type composting machines are more suitable for the mechanism and process requirements of microbial fermentation and composting of stored feces, which can effectively mix thick stored feces with microbial preparations and straw powder. It is not only much faster than deep tank fermentation, but also effectively prevents the production of hydrogen sulfide, ammonia, indole and other harmful and malodorous gases in the fermentation process, which not only meets the environmental requirements, but also can produce high-quality Manure.

(2) Crawler type composter has the advantages of balanced overall power, low energy consumption and high output, which reduces the survival cost of biological Manure.

(3) The overall structure of the crawler type composting machine is reasonable, with good rigidity, balanced force, simplicity, robustness, safe and reliable performance, easy operation, and strong usability on the yard. Except for the coarse frame, all components are standard parts, making it easy to use and maintain.

(4) Crawler type composting machines do not need to build grooves, and can stack fertilizers into long strips on the ground. Ground stacked fermentation is currently one of the most advanced and cost-effective fertilizer production modes for civil engineering and human resources. The composting machine regularly mixes and crushes materials, and decomposes organic matter under aerobic conditions.

The new process of compound (mixed) fertilizer production by ammonia acid method is a new process of compound (mixed) fertilizer production rising in recent years. Compared with the general process of compound fertilizer production, it has the following characteristics:
1. The reaction heat produced by chemical reaction among liquid ammonia, sulfuric acid, monoammonium phosphate and other materials is directly used in NPK fertilizer manufacturing process of ammonia process to raise the temperature of pelletizing materials (which can make the temperature of pelletizing materials reach 70-80 ℃), reduce the moisture content of materials in the process of pelletizing, and thus reduce the dry drying strength. From the actual situation, the process scheme is about 30% – 40% lower than that of ordinary steam pelletizing process Consumption.
2. The NPK fertilizer manufacturing process by ammonia process uses the high viscosity slurry formed by the reaction of sulfuric acid and monoammonium phosphate to granulate. Compared with the general process, the pelletization rate is increased by about 50%. The production capacity of the same production system can be increased by more than 50%. The production capacity of the general 50000 T / a high concentration fertilizer production line can be up to 80000 T / a after adopting the ammonia process.
3. The product of NPK fertilizer manufacturing process by ammonia method has uniform particles, smooth and round appearance, and high particle strength.
4. The adaptability of raw materials is strong, all kinds of raw materials used in the production of general fertilizer can be used in the ammonia process, and the N-P-K nutrient distribution ratio of the product has a large adjustment range. It can produce all kinds of inorganic compound fertilizer with high and low concentration.

The npk fertilizer production line will generally crush the fermentation materials that have completed the secondary aging and stacking process and enter the mixing and mixing system. Before mixing and mixing, according to the formula, N, P, K and other trace elements will be added into the mixing and mixing system to start mixing.

The mixed materials are transported to the granulation system, and the granulation enters the cooling system after passing through the dryer. The materials are screened after reaching the normal temperature. The particles that meet the requirements enter the coating machine to wrap the film and start packaging. The particles that do not meet the requirements are crushed by the pulverizer and then returned to the granulation system to continue granulation.

Livestock manure from livestock farms and sewage from chemical plants are all sources of pollution. What we can do now is to use Organic fertilizer equipment to solve these culprits of environmental pollution, because Organic fertilizer equipment has been specially developed for livestock manure, which is made into Organic fertilizer after harmless treatment and fermentation. This not only eliminates environmental pollution, Organic fertilizer is also used to supplement organic matter to improve the soil quality, so the state strongly supports the use of Organic fertilizer, which also plays a role in protecting our health.

The Organic fertilizer production line should first control the water content of pig manure below 85%, and then add straw powder, rice bran, corn flour and other auxiliary materials to control the water content between 50% and 70%. Finally, add the special thermophilic bacteria Fermentation starter for pig manure, mix it with a mixer, transport it to the fermentation tank with a forklift, and use the Organic fertilizer composter for full fermentation and decomposition. The fermented pig manure can be granulated. During the fermentation of Manure, the water content and temperature requirements of the material shall be met by using a forklift to transport the fermented pig manure to the forklift feeder, and a belt conveyor is arranged below the feeder to transport it to the grinder for crushing, and then to the Organic fertilizer granulator for granulation. The produced particles have high water content, and then pass through the dryer for drying before entering the cooler to cool the particles and improve the particle strength. Then it is sent to the drum screening machine to screen out unqualified particles, which are then transported by the return conveyor to the secondary crusher for crushing and secondary granulation. Until the qualified particles meeting the customer’s requirements are produced, the packaging machine can be used to seal the packaging finally, that is, the commodity Manure can be sold. There are three different equipment configurations for pig manure Organic fertilizer production equipment to meet the needs of a variety of customers. For small-scale investment, simple configuration equipment can be used, while for large-scale investment, medium or full configuration can be used. The price will vary depending on the configuration.

The Organic fertilizer production line produces a wide range of raw materials for Manure, including chicken manure, pig manure, cow manure and other livestock manure. Such raw materials need to undergo biological fermentation, and then make them reach the harmless treatment standard, so as to further produce commercial Manure.