The process flow of complete sets of equipment in npk production line can usually be divided into: raw material batching, raw material mixing, raw material granulation, particle drying, particle cooling, particle classification, finished product coating, and final finished product packaging.

Then the material in the equipment (drum granulator) how long can reach the expected quality, residence time is the amount of time the material is processed in the given equipment. In most npk fertilizer manufacturing process Settings, the manufacturer must be able to reach a specific retention time to achieve its desired goal.

While retention time seems simple in theory, it gets complicated when using continuous procedures. In a continuous production run, there are no batches and no real boundaries between “start” and “end”; Material is constantly in and out of the drum at the same time, so it is difficult to determine the true length of time to process a given part of the material.

1. Introduce tracers

Tracers such as dyes or chemicals are not always allowed due to product composition or contamination issues. However, when allowed, tracers can be a very useful tool for determining retention time; The average retention time can be determined by measuring where the tracer begins to flow out of the drum and where the tracer is no longer seen.

2. Measure the drum volume

Retention time can also be defined by measuring the volume of material in the drum or the weight of material in the drum when the process is in a steady state. In a steady state, the material is fed and discharged at the same rate. Average retention time can be determined by dividing the material bed volume or material bed weight by the volume flow rate or mass flow rate. It is important to understand that the retention time is always an average across successive Settings.

In the npk production line, we have encountered two situations due to the different friction between the material and the cylinder wall of the granulator. The internal surface finish of the granulator is large, which reduces the friction between the material and the cylinder wall and weakens the upward movement force of the material. If the material does not roll, it will not produce particles. In view of this situation, we can solve it by adjusting the rotating speed of the granulator and installing a small board inside.

The disc angle of the disc granulator adopts an overall circular arc structure, and the granulation rate can reach over 93%. The disc granulation disc is equipped with three discharge ports, which facilitate intermittent production operations, greatly reducing labor intensity and improving labor efficiency. The reducer and motor of the disc granulator are driven by flexible belts, ensuring smooth starting, reducing impact force, and improving the service life of the disc granulator equipment. The bottom of the disc granulator is reinforced with multiple radiating steel plates, which are sturdy and durable, and will never deform. The thickened, weighted, and sturdy base design of the disc granulator  the need for anchor bolts for fixation and ensures smooth operation. The main gear of the disc granulator adopts high-frequency quenching, which doubles its service life. It has the advantages of uniform granulation, high granulation rate, stable operation, sturdy and durable equipment, and long service life, making it an ideal equipment for users to choose from.

The production line of organic and inorganic fertilizer disc granulator can be divided into five main parts:

1. Frame part: Due to the fact that the entire transmission and rotating parts of the machine body are supported by the frame and subjected to significant force, the frame part of the machine is welded with high-quality carbon channel steel and has passed strict quality certification and specific technical requirements, achieving the purpose of using this machine.

2. Adjustment part: The most important part of the entire machine is the granulation disc, and the entire center of gravity of the granulation disc is installed on the adjustment part. Our company specializes in welding high-quality carbon steel plates and channel steel, and has passed strict quality certification, all of which meet the requirements for use in this machine.

3. Transmission part: The optimization of the transmission part of the entire machine is crucial, and the overall work is carried out accordingly. The electric motor and reducer installed on the transmission adjustment frame are all selected from ISO/9001 quality system certified inspection free products, with reliable quality. The electric motor drives the pulley and V-belt. The reducer and small gear are driven by the small gear to drive the large gear on the granulation plate, which operates the granulation plate. In addition, both large and small gears adopt high-frequency quenching, with a service life twice that of the original. The entire granulation plate is fixed on the driving shaft on the regulating plate, and the column head connection part adopts a taper fit, which is more reasonable in design;

4. Pelleting disc part: The angle of the granulation disc of this machine adopts an overall arc design, with a granulation rate of over 93%. The bottom of the granulation disc is also reinforced with multiple radiating steel plates, which is sturdy and durable, and will never deform;

5. Automatic cleaning part: This part is installed above the granulation plate, forming a lower frame shape, and is equipped with an automatic cleaning plate to remove materials adhering to the plate wall during the production process, greatly improving the service life of the machine and saving labor.

The small-scale manure Organic fertilizer production line fundamentally improves the pollution problem of agriculture and animal husbandry. A large amount of livestock manure produced by the farm is used to produce green Organic fertilizer. Organic fertilizer 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 biological chain, maintain Balance of nature, and let us find a new pastoral life.

Commissioning steps for complete equipment of Organic fertilizer production line:

1. Before starting the complete set of equipment for Organic fertilizer production line:

Due to the fact that the components of the new equipment have not yet been worn in, it is necessary to warm up the equipment during startup, which usually takes 40-50 minutes. For specific operations, first raise the temperature to the point where you can manually pull the triangular belt of the motor until it is free, and then continuously pull the motor 8-10 times according to the normal working option. Continue heating up for about 10 minutes.

2. Temperature control after startup of complete equipment of Organic fertilizer production line:

We have preliminarily adjusted the temperature of the equipment before startup. The treatment of materials by the complete set of equipment of Organic fertilizer production line in the production process is determined by the characteristics of the materials themselves. Therefore, after startup, we need to continue to heat up, because normal production needs to continue to supplement heat; Adjust different temperatures based on different properties of plastic.

3. When the Organic fertilizer production line works normally:

During normal operation, the machine temperature should remain stable and not fluctuate from high to low. Near the vent hole, the temperature of the machine head should be maintained at around 200 ℃. At this temperature, most materials can generally be processed well.

4. Shutdown of complete equipment of Organic fertilizer production line:

First of all, cut off the power supply of the host machine, and remove the head plug (with wrench) of the complete set of equipment for Organic fertilizer production line. Preheat separately before next use.

The installation sequence of complete sets of equipment for Organic fertilizer production line is scientific. The installation plan of complete sets of equipment for Organic fertilizer production line is considered from many aspects. The demonstration of relevant technical factors and the installation sequence are scientific and cannot be changed at will. Only by purposeful, planned and orderly installation of complete sets of equipment for Organic fertilizer production line can the best installation effect be achieved and work efficiency be improved. In addition, safety factors are also considered in the installation plan of complete sets of equipment for the Organic fertilizer production line. To ensure that there are no accidents in the use process is the real quality assurance.

The key component of organic manure is soil organic matter, which enhances the soil organic matter content in the soil layer. Soil organic matter can improve soil layer physics, organic chemistry and microbial characteristics, organic fertilizer equipment to mature soil layer, fertilize the cultivated land. In rural areas, the saying “the land is raised by dung” reflects the effect of organic manure fertilizer on improving soil layer to a certain extent. In the process of producing organic fertilizer, organic fertilizer granulation is an important link, the following analysis of granulator.

Commonly used granulating organic fertilizer equipment are: disc granulating machine, drum granulating machine, wet granulating machine, roll extrusion granulating machine, flat mold granulating machine, ring film granulating machine. Each type of granulator makes different particle conditions, applicable materials have certain requirements, can be determined according to the selection of raw materials granulator varieties. Prices range from several thousand yuan to tens of thousands of yuan. Because the output is not the same, the size of the granulator is not the same, there are very small pelletizers, and there are also large pelletizers.
The disk granulator uses the motor as the power to drive the inclined disk to rotate. The internal scraper prevents the material from sticking to the bottom of the disk. When the material rotates to the top, it rolls down by itself, like a snowball into particles. It is suitable for non-viscous powdery materials, disc organic fertilizer granulator plate bottom to take a number of radiation steel plate strengthening, durable, permanent fixed shape. Organic fertilizer disc granulator thickened, weighted, solid base decision, do not need anchor bolt fixed, stable operation.

Drum granulation production is a process in which composite fertilizer equipment achieves thermal granulation of composite fertilizer. By increasing the temperature of the material and increasing the solubility of salt in the granulation water system material, the liquid phase quantity that meets the granulation requirements of the material is obtained at low moisture content, reducing the thermal energy consumption in the drying process, and improving the production capacity of the equipment. Therefore, the quality of granulation performance is the key to determining the yield and quality of composite fertilizer produced by drum granulation.

The time and frequency of material rolling in the drum granulator are the primary factors determining the balling rate and particle roundness.

The principle of compound fertilizer Organic fertilizer drum granulator is that materials rely on surface tension, appropriate liquid phase, extrusion force generated by rolling between materials, and small particles as the core in the correct movement direction of materials in the Organic fertilizer drum granulator, and absorb and adhere to small particles during rolling.

The higher the frequency of rolling within a certain period of time, the higher the sphericity rate, and the more rounded the particles become after forming. In the production process, we have encountered two situations due to the different friction between materials and compound fertilizer Organic fertilizer drum granulator.

1. Compound fertilizer Organic fertilizer drum granulator has a large internal surface finish, which reduces the friction between materials and cylinder wall and weakens the upward movement of materials. If materials do not roll, particles cannot be made. In view of this situation, we can solve this problem by adjusting the rotating speed of compound fertilizer Organic fertilizer drum granulator and installing a small board inside.

2. The reason is that the materials in the compound fertilizer Organic fertilizer drum granulator stick to the wall seriously, and the friction between the materials in the compound fertilizer Organic fertilizer drum granulator and the drum wall is increased, lifting the materials in the machine too high, causing the materials to fall down from the top, so that the particles formed are not round and there are too many large particles.

On the one hand, it is caused by too many sticky materials in the material. In this case, we adopt changing the process formula to reduce the amount of sticky materials used to solve the problem;

On the other hand, the internal roughness of the drum granulator for compound fertilizer Organic fertilizer is caused. We can solve this problem by changing the internal materials and increasing the smoothness of the drum granulator for compound fertilizer Organic fertilizer.

The selection of small chicken manure powder Organic fertilizer production line is relatively simple. The main equipment includes mixer, dumper, refining equipment, automatic packaging machine, and belt conveyor. The small Organic fertilizer powder production line for chicken manure generally selects small mixers, shallow tank dumpers or strip stack dumpers, refining equipment, automatic packaging machines, etc. The premixing equipment of large powdery Organic fertilizer production line is generally double screw mixer or unpowered mixer, and the dumper is shallow groove dumper, spiral dumper or chain plate dumper, which is generally determined according to their own capital situation and automation level. To refine the equipment, it is necessary to choose 2-3 large pulverizers, or choose screening and crushing first to save some energy. This is because the fermented organic raw materials have high moisture content, high difficulty in crushing, and high power of the equipment. In order to achieve high yield, high efficiency, and energy conservation, screening and refining equipment must be selected. After packaging, this packaging must choose Organic fertilizer powder packaging machine!

Several problems of livestock manure processing Organic fertilizer

(1) The collection and transportation of waste is quite troublesome and difficult to mechanized. It is recommended to use a transfer yard for collection and storage, while reducing the intensity of manual work and the moisture content of feces. If conditions permit, container storage can be used for secondary transportation.

(2) When designing industrial composting for tower fermentation, microbiologists, architects, engineers, and others need to participate together, carefully select mechanical equipment, and try to ensure composting efficiency while reducing operating energy consumption to reflect the advantages of mechanized production.

(3) In the early stage of composting, a large amount of odor is often emitted, and these waste gases are generally collected and passed into deodorization equipment for processing, or membrane fermentation technology is used, and microorganisms are added to compost and covered with film for fermentation. Dust laden tail gas generated by Organic fertilizer granulators, dryers, etc. can be treated by cyclone dust collectors, box type dust collectors, gravity settling chambers, etc. to remove most of the dust, and the recovered dust can be sent back for re granulation. The exhaust gas after dust removal is sent to the washing tower for repeated rinsing with circulating washing liquid, and can only be discharged after meeting the national air emission standards. The washing solution used for spraying enters the settling tank, with some used for self circulation and some used for granulation. The settling tank needs to be regularly replenished with clean water to maintain normal circulation.