The granulation process of an annual production line of 20000 tons of chicken manure organic fertilizer:

The granular organic fertilizer production line with an annual output of 20000 tons of chicken manure includes a stacker – vertical crusher – drum screening machine (optional here) – batching machine and horizontal mixer (optional equipment) – disc granulator – dryer and cooling machine – drum screening machine – round throwing machine (optional) – coating machine (optional) – single bucket packaging machine.

With an annual output of 20000 tons and a large scale, it is possible to consider using a granular fertilizer production line. The granular fertilizer production line includes two important processes, fermentation and granulation.

Fermentation process for the production of chicken manure organic fertilizer:

Mix chicken manure, straw, mushroom residue, and other materials together, add fermentation agents, and under the action of the fermentation agents, the material pile will generally heat up in about 2 days. At this time, flipping equipment can be used to flip the pile to increase the oxygen content and moisture content of the material pile. If local environmental protection is strict, horizontal fermentation tanks can be used for fermentation. The fermentation process in horizontal fermentation tanks is fully sealed and contains deodorization devices, which will not cause environmental pollution.

Granulation process of chicken manure organic fertilizer production line:

After sufficient fermentation and maturation, the material enters the granulation process. The finer the material, the better the shape of the produced particles. Therefore, it is necessary to first use a vertical crusher for crushing, and then use a drum screening machine to screen. Materials with unqualified dimensions enter the crushing process again, and qualified materials enter the organic fertilizer granulator. An annual output of 20000 tons of granular fertilizer. It is recommended to use disc granulators, toothed granulators, etc. for circular particles, and flat mold granulators and roller extrusion granulators are recommended for cylindrical particles. After the granulation is completed, the screening machine is used again for screening. Unqualified particle materials enter the crushing granulation process again, and qualified particles enter the packaging machine.

The production process of fermentation and granulation is relatively simple, but equipment selection is important. Stable performance and well-designed equipment can not only avoid production accidents, but also improve the quality of organic fertilizers.

The npk manufacturing process mainly includes feeder, double roller granulator, dryer, cooler, drum screening machine, finished product warehouse, automatic packaging machine, etc. It is necessary to master the functions of the equipment, be familiar with the non-organic fertilizer equipment, maintenance essentials, Operation methods of consumption capacity and scope of application, familiar with the functions of all controllers and alarm devices of organic fertilizer processing equipment. At the same time, we must pay attention to the safety accidents that may occur when the equipment is continuously operated under high pressure and low temperature. Various problems that may occur in organic fertilizer processing equipment. When there is organic fertilizer equipment production, we must pay attention to safety. We can only work better when we have security. At the same time, pay attention to the daily maintenance of the equipment.

1. Keep the machine clean. After use, the stains and debris outside the organic fertilizer granulator should be removed, coated with black oil, waste oil, etc, and covered with a protective cover.

2. Deal with corroded and damaged parts in time. When the equipment is not working, the corroded or damaged parts in the equipment should be removed, especially the motor, reducer, conveyor belt, transmission chain, etc.

3. Pay attention to the operation of the organic fertilizer equipment. Once serious abnormal noise is found, the npk fertilizer production line inspection should be stopped immediately and used after troubleshooting.

4. For outdoor organic fertilizer equipment, the deformed part should be leveled or erected to remove the factors causing deformation.

5. When the organic fertilizer equipment is overhauled, the working gap should be re-measured each time and adjusted several times. It can only be used if the standard is met.

6. Do a good job of thermal insulation. The drive part of the fertilizer equipment may start slowly or fail to start due to freezing. Therefore, insulation measures can be taken. At the same time, antifreeze is also used for raw materials commonly used in the operation of organic fertilizer equipment.

The investment cost of organic fertilizer plant mainly includes land rent, plant construction, organic fertilizer production equipment, cost of raw materials and auxiliary materials, labor cost, electricity fee, etc. Organic fertilizer production equipment: a set of npk production line: fermentation turning and throwing equipment, feeding hopper, crushing equipment, granulator, screening equipment, cooling dryer, belt conveyor, packaging equipment, etc.), granular production line, 250,000; The larger the annual production capacity, the higher the price. 

Organic fertilizer granulator is one of the core equipment of organic fertilizer equipment, which directly affects the roundness, uniformity, fertilizer and water retention performance of organic fertilizer particles. Different types of granulators should use different types of granulators to directly affect the output, quality, appearance, price of the product. In the npk manufacturing process, what type of granulator is needed for the production of granular organic fertilizers. Learn about the double-roll granulator and the drum granulator today.

Double roller press granulator

The double roller granulator belongs to dry granulation, no drying process is required, and the granulation density is high, the fertilizer effect is good, and the organic matter content is full. Save the cost of buying dryer and cooler, no need to burn coal in the later stage, which saves a lot of money. The size of the extrusion force can be adjusted by hydraulic pressure, and the operation is flexible. It is suitable for various industries such as fertilizer, medicine, chemical industry, and feed. The design is reasonable, and it can be used together with the corresponding equipment to meet the continuous production of the production line.

Rotary drum granulator

The rotary drum granulator is a process of compound fertilizer granulation. It can also be used to produce organic fertilizer. It has high work efficiency and is lined with rubber engineering plastic material. The granulation rate is high, there is a small amount of returned material, the particle size of the returned material is small, and it can be re-granulated again, saving costs, and heating the material by steam to increase the temperature of the material, so that the moisture of the material is low after the material is formed into a ball, and the drying efficiency is improved.

There are many types of organic fertilizer crushers, including vertical crushers, chain crushers, semi wet material crushers, urea crushers, straw crushers, new straw crushers, etc. The selection of a suitable pig manure organic fertilizer crusher mainly depends on several aspects such as production scale, material requirements, and operational requirements. Now let me give you a detailed introduction.

Firstly, according to the scale of production, pig manure organic fertilizer crushers can be mainly divided into three types: small, medium, and large. The small pig manure organic fertilizer crusher is suitable for small family farms or individual operators, with a general processing capacity of 1-2 tons/hour; The medium-sized pig manure organic fertilizer crusher is suitable for medium-sized factories or farms, with a processing capacity of 2-5 tons/hour; Large scale pig manure organic fertilizer crusher is suitable for large factories or farms, with a processing capacity of over 5 tons/hour.

Secondly, according to material requirements, the pig manure organic fertilizer crusher can be divided into two types: stainless steel and carbon steel. The stainless steel pig manure organic fertilizer crusher has corrosion resistance and is suitable for processing pig manure containing more acidic and alkaline components, while the carbon steel pig manure organic fertilizer crusher is more wear-resistant and suitable for processing pig manure with strong viscosity.

Finally, according to operational requirements, the pig manure organic fertilizer crusher can be divided into two types: manual and automatic. The manual pig manure organic fertilizer crusher requires manual operation and is suitable for places with simple operation and sufficient human resources; The automatic pig manure organic fertilizer crusher has automatic control function, suitable for situations with high work intensity and complex operation.

In summary, selecting the right pig manure organic fertilizer crusher requires comprehensive consideration of production scale, material requirements, and operational requirements.

The principle of rotary drum granulator is that the material relies on the surface tension, the right amount of liquid phase, the extrusion force generated by the rolling between the materials, and the material takes small particles as the core in the correct direction of movement in the granulator, and sucks big during the rolling. Small attached, glued into a ball. The higher the rolling frequency in a certain period of time, the higher the spheroidization rate, and the more rounded the pellets are after they are formed.

1. In the npk production line, we have encountered two situations due to the different friction between the material and the wall of the granulator. The inner surface of the granulator has a large surface finish, which reduces the friction between the material and the cylinder wall, and weakens the upward movement of the material. If the material does not roll, particles cannot be produced. In response to this situation, we can solve it by adjusting the speed of the granulator and installing a small copy board inside.

2. The material in the rotary drum granulator is seriously sticking to the wall, and the friction between the material in the granulator and the cylinder wall is enhanced, and the material in the granulator is lifted too high, causing the material to be thrown down from the top, so that the formed particles are not round. And too many large particles, we think there are two reasons for this situation: on the one hand, it is caused by too many viscous materials. The inside of the machine is not smooth, which is solved by changing the internal material and increasing the smoothness of the granulator.

The double roller press granulator is the key equipment for compound fertilizer granulation. It has advanced technology, reasonable design, compact structure, low energy consumption, and is matched with corresponding equipment to form a small production line, which can form a certain continuous production and mechanized production. , No drying, room temperature production, capacity, product quality meet the technical requirements of compound fertilizer, it is the latest product of energy saving and consumption reduction of npk production line of high, medium and low concentration special compound fertilizer and compound fertilizer industry.

The double roller granulator has the characteristics of low energy consumption, high energy saving, low investment, simple operation, and pollution-free equipment emissions. The distance between the pressure rollers should not be too small or too large, and should be adjusted within the specified range. Secondly, the pressure cover on the bearing seat side should be avoided to be too loose or too tight, which will cause the shaft rollers to shift.

1. Uniform feeding: Since the surface of the biological fertilizer granulator is friction material and direct force, in the npk manufacturing process, when the roller surface is worn, the friction and back pressure of the material cannot be ignored. This force requires higher quality roll skins, lower mass wear rates, and lower mass wear rates. If the feeding is not uniform, the center of the parallel bar axis of the biofertilizer granulator is parallel to the surface of the roller sheet, the feeding at one end and the feeding at the other end will cause uneven force at both ends of the roller, thereby increasing the friction between the roller and the material , resulting in roller wear.

2. Material pH: Since the roller cover of the biological fertilizer granulator is made of stainless steel, it has a strong response to the pH of the material. Due to the lack of moisture and alkalinity of the material, it will cause acid and alkali corrosion on the surface of the roll and damage the roll. If the operating procedure does not work, the gap between the rollers will not be properly adjusted and contain impurities such as iron and sulfur. The color phase can seriously damage the roll surface.

The investment required for producing organic fertilizer varies depending on the scale, and the equipment of the entire organic fertilizer production line is not fixed. It is determined based on the on-site site and material output.

Different types of feces require different types and models of equipment. Powdered fertilizers and granular fertilizers require different equipment for different processes. So the investment amount for the entire organic fertilizer equipment production line is not fixed, there are highs and lows, and the difference in investment amount between small and large production lines is even more significant.

The investment amount for the complete set of equipment on a 40000 ton organic fertilizer production line is generally between 400000 to 2 million yuan. Including organic fertilizer flipping machines, animal manure crushers, conveyors and other equipment, it is necessary to add a complete set of equipment such as forklifts, horizontal mixers, organic fertilizer granulators, screening machines, weighing and packaging machines.

To configure a complete annual production of 40000 tons of organic fertilizer equipment, the following are required:

Dehydration machine – fermentation flipping machine – crusher – screening machine – mixer – granulator – dryer – cooling machine – screening machine – particle packaging machine. During the production process, there is also a need for forklift feeding and conveying equipment, and different equipment should be added according to different needs.

The larger the output, the greater the required equipment investment amount. However, these are not fixed and unchanging. Different types of feces, varying moisture content, or other organic waste materials such as various crop straw, sludge, processing waste (sugar residue, wine lees, vinegar residue, tofu residue, etc.) may require slightly different equipment.

In terms of ecological environment, the use of organic fertilizer can effectively solve the pollution caused by organic waste in industries such as animal husbandry and food processing, improve the safety and quality of agricultural products, and effectively improve the ecological environment;

In terms of crop production, China is a major agricultural country. Strengthening the recycling of waste to generate new energy and restore it to crop production can greatly save costs and investments. Organic fertilizer production equipment greatly saves the cost of producing organic fertilizers and other products, improves production efficiency, and ensures meeting the needs of a wide range of users. The emergence of organic fertilizer production lines is in line with market demand, and the development prospects of the market are immeasurable.

Organic fertilizer production equipment complete set of high configuration equipment: solid-liquid separator, fermentation turner, semi-wet pulverizer, horizontal mixer, granulator, dryer, cooler, trommel screen, granulator (disc granulator machine) machine, new stirring tooth granulator, rotary drum granulator, new extrusion granulator), automatic packaging machine, belt conveyor, etc.

Granulation is an important part of fertilizer production. There is no need for drying and normal temperature process for granulation by double roller granulator. The granulation is flat in shape, organic fertilizer granulation such as oil cake, compound fertilizer granulation in npk fertilizer production line, chemical industry, feed, etc. The product has a high granulation rate, is dry powder at room temperature, does not need to be dried, and is extruded at one time, which meets the technical requirements of compound fertilizer. Increase. The output is large, the design is reasonable, and it can be combined with the corresponding equipment to meet the continuous production of the production line.

What should I do if the fertilizer cannot be demolded in the roller extrusion granulator?

I need to find out why it won’t unmold and a second solution.

1. The water content of the particles is too high. Adjust the moisture content of the granules and dry them before use.

2. The molding pressure is insufficient, and the elastic recovery of the molding particles is insufficient. Shorten the roll distance and increase the forming pressure.

3. The inner wall of the new roller cavity is rough. Grind and smooth the inner walls of the cavity.

Organic fertilizer raw materials, workers’ wages, and other expenses, building a small organic fertilizer factory can recover the cost in 4 to 6 months, and can recover profits in half a year. The report is rich and the profit is considerable. Factories with an annual output of less than 5,000 tons belong to small-scale processing. Small-scale organic fertilizer production lines are mainly divided into two types: powder lines and pellet lines. Compared with powder line equipment, particle line equipment requires more equipment and greater investment. Therefore, powdered organic fertilizers on the market are usually cheaper than granular organic fertilizers, which can be sold for 600 yuan/ton, and granular organic fertilizers can be sold for 1,000 yuan/ton. Some high-quality organic fertilizers cost thousands of yuan per ton.

The powder organic fertilizer npk fertilizer production line needs to purchase equipment: fermentation turner, pulverizer, packaging machine, etc. Depending on the degree of automation, equipment investment is between 80,000 and 150,000. Granular organic fertilizer production line needs to purchase equipment: fermentation turner, pulverizer, double roller granulator, screening machine, packaging machine, etc. Depending on the degree of automation, equipment investment is between 150,000 and 450,000. There are many types of equipment for manufacturing organic fertilizers, and different organic fertilizer production line schemes need to be formulated according to the different materials and output of customers.

During the npk manufacturing process, keep the work site clean, remove the granulation leaves and the residual glue inside and outside the granulation pot every time the organic fertilizer equipment is completed, clean the glue sand and flying objects scattered or splashed on the organic fertilizer equipment, and remove the organic fertilizer. Wipe the exposed processing surface of the fertilizer equipment and machine clean, apply anti-rust meat paint, and put on the corresponding protective cover to prevent the secondary intrusion of dust and prolong the service life.

At present, organic fertilizer production lines are divided into three levels of complete sets of equipment based on production capacity: large, medium, and small. The annual production line of 50000 tons of cow manure organic fertilizer is a medium-sized organic fertilizer production line with a production capacity.

Process flow and supporting equipment of an annual production line for 50000 tons of cow manure granular organic fertilizer

1. Mainly, raw materials containing organic matter (such as sheep manure, pig manure, sludge, chicken manure, duck manure, cow manure) with a moisture content of about 70% are mixed with crushed organic waste (such as straw, corn straw and branches, mushroom residue) and then added with a biological fermentation agent for fermentation.

2. Use a forklift to load the mixed (sheep manure, pig manure, sludge, chicken manure, duck manure, cow manure) and other plant straw into a fermentation and maturation tank, and evenly add fermentation bacteria for maturation.

3. Fermented raw materials can be directly conveyed to the crusher through an automatic material system using a belt conveyor for crushing. The crushed materials can be directly conveyed to the screening machine using a belt conveyor. The screening machine screens out impurities that are not fully decomposed or crushed, and then uses a belt conveyor to transport them to the waste disposal site for processing. The crushed finished powdered organic fertilizer (sheep manure, pig manure, sludge, chicken manure, duck manure, cow manure) can be transported to the finished powdered raw material workshop using a belt conveyor for processing particles (if particles are not processed, they can be packaged, and packaged as powdered organic fertilizer)

4. After fermentation and crushing, the raw materials are accurately proportioned using a forklift into the automatic batching bin and other raw materials (bentonite, humic acid) (with a total nutrient content of less than 25% of nitrogen, phosphorus, and potassium added) to produce organic and inorganic fertilizer compound fertilizers. After proportioning, they are quickly and evenly stirred by a mixer. Before granulation, they are crushed by a crusher. After stirring and crushing, the raw materials are transported by a belt conveyor to the organic fertilizer granulator. A small amount of water is added at the inlet for granulation, and the particles formed by the granulator are then transported by a belt conveyor to the rounding machine for shaping.

5. After rounding and shaping, the particles are fed into a dryer through a belt conveyor. The dryer is used for low-temperature and high air drying (using an inlet temperature of about 400 ℃ ≤ an outlet temperature of about 65 ℃) to remove some moisture from the particles (the moisture content of the particles is around 30 after the first drying),

6. The particles passing through a drying machine are transported by a belt conveyor into a second drying machine, which is then dried at low temperature and high air volume (using an inlet temperature of about 300 ℃ ≤ an outlet temperature of about 65 ℃) to remove some moisture from the particles (after the second drying, the moisture content of the particles is around 20 ℃),

7. The particles that have undergone secondary drying are transported by a belt conveyor into a cooling machine (using a high-power fan at the tail to suck in cold air for cooling, allowing the surface moisture of the particles to quickly condense and enhance their strength). The particles that have undergone high air flow cooling and drying are beneficial for long-term storage (the moisture content of the finished organic fertilizer particles is about 15).

After drying and cooling, the particles are sieved by a belt conveyor through a powder screening machine for finished product screening. The particles that do not meet the requirements are transported to the waste crusher by a (finished particle 2-4mm) belt conveyor for thorough crushing, and then returned to the granulator for further granulation by the return material belt conveyor.

9. After sieving the powder, the particles can be coated by a coating machine and added (functional bacteria can produce bio organic fertilizers)

10. After adding functional bacteria to the coating machine, the particles are transported by a belt conveyor to the second screening machine for particle size screening. The 2mm and 4mm particles can be separated and packaged separately. This way, the particles are more beautiful, and the particles purchased by farmers will not have the phenomenon of large, small, or uneven particles in a bag, because the goods are sold in one piece of skin. (Does the packaging machine use a fully automatic packaging machine with a set of high-level fully automatic palletizing packaging machines?)

11. After being processed by the above equipment, the raw materials (sheep manure, pig manure, sludge, chicken manure, duck manure, cow manure) can be qualified to meet the national requirements for organic fertilizer, organic-inorganic compound fertilizer, bio organic fertilizer, and organic-inorganic microbial fertilizer.