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How to Preventing Caking from the NPK Fertilizer Production Process

Written by fertilizer production line on December 3rd, 2019.

NPK compound fertilizer is prone to cake because of its strength, moisture content, storage and so on. This article will introduce how to prevent caking from the process operation of NPK fertilizer production process.

NPK fertilizer production equipment produce products with smooth and uniform particles

Non-uniform particles, too many fine particles, non-smooth fertilizer, the compressive resistance, wear resistance is also poor, easy to be compressed and deformed in storage and transportation. The contact area between particles increase, which is easy to agglomerate. In order to produce products with uniform and smooth particle size, appropriate fertilizer granulator machine should be selected. Disc granulator and rotary drum granulator can produce moderate size particles and meet the requirements. If there is a higher requirement for the shape of the particles, it can also be combined with the ball shaping machine to polish the particles to ensure that the shape is qualified.

fertilizer granulator machine

Strengthening the control of screening machine

In order to ensure the consistency of particle size and reduce the caking of powder, it is necessary to screen particles with the rotary drum screener machine. According to the particle size of the product, different screens can be selected, and secondary screening can be selected in the process. Pay attention to the material screening in production, timely clean the screen.

Dryer reduces product water content

NPK compound fertilizer has a high water content, which will lead to salt reaction and cause hardening. The higher the water content, the easier the particles to agglomerate. Therefore, the NPK compound fertilizer production line must use a dryer to reduce the moisture content to the allowable range.

After the particle is dried by the dryer, the temperature is higher and the hygroscopicity effect will appear, so it needs to be cooled. The cooler reduces the material temperature to room temperature, and the product can be saved.

Coating treatment is used in NPK fertilizer production process

Choose the suitable material and use the fertilizer coating machine to coat the particles. At the same time, pay attention to the amount of wrapping agent added. The amount of wrapping agent added is small, the particles are not wrapped completely, the effect is poor; the amount of adding is large, the wrapping oil will infiltrate into the inside of the NPK fertilizer, and the product is easy to cake.

Cow manure organic fertilizer production line method

Written by fertilizer production line on December 3rd, 2019.

Designing fermentation compost turner machine is a good fertilizer machine used in the organic fertilizer production line.Because producing the organic fertilizer needs to ferment the raw material and using the fertilizer machine can save more time to ferment the raw material. The cow manure is a good organic fertilizer material that using the raw material to produce organic fertilizer granulator, but before producing we need to ferment the raw material for some time and different cow manure the method of fermenting are also different.

organic fertilizer production line

The fertilizer machine of fermenting raw material always be called the fermentation compost turner machine, and the machine are designed to several different types. Like the simple compost turner machine, windrow compost turner machine, double screws compost turner machine and hydraulic compost turning machine. The cow manure can be divided into dry cow manure and wet cow manure.
1.The dry cow dung due to be absence of the water and make it cannot to be fermented, so it is necessary to put into some water and then to use the simple compost turner machine to ferment.
2.If the cow manure is fresh and when began to ferment it need to add some other raw material to absorb the water in the fresh cow manure, and too much moisture easy to lead to impermeability, microorganisms cannot produce fermentation, auxiliary choice is diverse, the purpose is to absorb some of the fresh cow dung in the water. The general choice of accessories: sawdust, straw, grass ash carbon and so on .Finally, using the fermentation compost turner machine to ferment the cow manure.

After fermentation, the fertilize granulator should be used to make fertilizer pellets, then dried and cooled, then screened, finally, the fertilizer is packed and sold.

The fuinction of the bio organic fertilizer granulator

Written by fertilizer production line on December 2nd, 2019.

We can produce the bio fertilizer granulator using the fertilizer manufacturing technology,in the fertilizer manufacturing process it is equipped with different type fertilizer equipment to finish the bio fertilizer production.For finishing the biofertilizer production,the fertilizer machine manufacturers designed complete fertilizer production line to finish the biofertilizer production lines.
In the biofertilizer production line,it is equipped with fertilizer granulator machine to finish the fertilizer granulator producation.The bioorganic fertilizer granulator is a new kind of organic fertilizer granulator,the fertilizer manufacturing process smoetimes it has some differences from the organic fertilizer production line.
Why we produce the bioorganic fertilizer granulator?The function of the bio organic fertilizer:
The function of bio organic fertilizer the function of bio organic fertilizer is also due to the different types of microorganisms which can be summarized as follows.
1.Nitrogen fixation,such as nodules and nitrogen fixing bacteria,it can fix nitrogen in the air and provide nitrogen nutriention for growth under suitable environmental conditions.It is estimated that the amount of biological fixed nitrogen in the world can reach 101 million tons per year.
2.Nutrient releasing microorganisms decomposes some substances in soil that are difficult to be absorbed and utilized by crops into effective nutrients that can be absorbed and utilized by crops.For example, silicate bacteria can not only decompose the refractory minerals such as potassium feldspar and mica in the soil,release the fixed potassium,but also promote the insolible phosphorus in the soil to be converted into the form that can be used by crops.
3.The effect of microbial fertilizer on the growth of the soil not only increase the nutrient content of the soil,but also promotes the synthesis of various vitamixs,enzymes and other substances conducive to the growth of growth of crops,stimulates the growth of crop,and help crops absorb nutrients.

biofertilizer production

4.After inoculating some microorganisms in the resistant soil,they propagate in the roots of crops in large numbers,and become the dominant bacteria in the rhizosphere of crops in a period of time,which inhibits or reduces the breeding opportunities of pathogenic microorganisns,and some microorganisms also have resistances to pathogenic microorganisms.Although microbial fertilizer can provide nutrients for crop growth and stimulate and promote crop growth,its role is limited after all.In crop production,organic fertilizer and chemical fertilizer,which it can beproduced in the npk fertilizer manufacturing process,are mainly used to provide nutrients for crop growth.
5.There are many benefical microorganisms in many natural materials,but once these materials are applied to the soil,the microorganisms in them will be eaten by countless microorganisms in the soil.Therefore,it can not survive stably in the soil,and its effect is difficult to show.However,if the benefical bacteria are added to the fermented organic fertilizer,the fermented organic fertilizer itself to expand the culture medium,so as to make a large number of bacteria proliferation.At this time,the microbial organic fertilizer is applied to the soil to form a dominant population in the soil,which can play a good role in the root system of crops.Fermented organic fertilizer has a good effect on microbial activity.
fertilizer equipment

The principle of rotary drum granulator

Written by fertilizer production line on December 2nd, 2019.

Different type fertilizer granulator machine are designed for producing the organic or inorganic fertilizer granulator.Different type fertilizer granulator machine has different working principle.The rotary drum granulator machine is designed for producing the organic or inorganic fertilizer granulator.There we share the principle of the working principle with you.
The drum granulation is a method of mixing and granulating powdery basic fertilizer with drum granulator,which is widely used in the granulation of compound fertilizer.The series of rotary drum granulator machine is designed for not only used in the compound fertilizer manufacturing process,it also can be used in the organic fertilizer manufacturing process to produce the organic fertilizer granulator.

New type organic fertilizer prodiction line

The principle of the rotary drum granulator:First of all,the basic fertilizers are screened separatedly,and the screened materials are crushed by the crusher before screening.The material under the screen is sent to the respective hopper.When the pelletilizing system is in operation,each basic fertilizer is fed into the feed hopper through the metering equipment,conveying equipment and lifting equipment according to the proprtion requirements from each hopper at the same.At the same time,the return material also enters the hopper together with the basic fertilizer through the lifting equipment.There is a certain degree of mixing between the basic fertilizer and the returned material in the process of transportation and lifting,but it is more ideal to add a mixing equipment.The mixture in the feed hopper is fed to the rotary drum granulator at a certain feeding speed.At the same time,in the fertilizer manufacturing process,saturated steam is properly introduced into the bottom of the material layer,which not only improves the temperature of the material,but also makes the material wetted,which is conducive to granulation.If necessary,sprinkle a small amount of water or fertilizer solution on the material to maintain the best liquid volume of material granulation.The material forms a rolling bed by the friction action of the rotary drum granulator.The extrusion pressure generated by the rolling makes the material with certain liquid phase agglomerate into small particles.These small particles become the core,and the surrounding powder adheres to form large particles.As the drum granulator generally inclines to the discharge end at a certain angle,the granular material slowly rolls to the discharge port along the inclined direction of the cylinder while rotating with the cylinder.Qualified particles leave the drum granulator and enter the dryer for drying,and then pass through screening,cooling,coating,packaging and storage.After crushing,the upper part of the screen and the loweer part of the screen will be sent to the hopper as the return material and the basic fertilizer will be granulated at the same time.In the granulating process,we are besides the granulating method to be used to produce the fertilizer granulator,there is also designed the flat die granulator machine and the roller press granulator machine which are suitable for using the extrusion method to produce the fertilizer granulator.

In different type fertilizer production line,it is equipped with different type organic fertilizer machine,which are suitable for producing the organic fertilizer granulator,and the inorganic fertilizer granulator,which it is equipped in the compound fertilizer production line to produce the compound fertilizer granulator.In the fertilizer manufacturing process,using different type fertilizer machines to finish the fertilizer manufacturing production process not only improve the working efficient,it also save the waste of the raw materials.

How to maintain the fertilizer granulator machine?

Written by fertilizer production line on December 2nd, 2019.

The organic fertilizer production line is generally divided into two processes of fermentation and granulation. The fertilizer granulator machine plays an important role in the whole organic fertilizer production process. The quality of granulation also affects the quality and shelf life of organic fertilizer granules, thus affecting the selling price.

In the NPK fertilizer production line, the fertilizer granulator machine plays an equally important role, which is very important for the production quality of fertilizer granules. Therefore, we usually need to do maintenance work.

fertilizer granulator machine

The fertilizer granulator machine is divided into a drum granulator, a tooth granulator, a flat die granulator, a disc granulator, etc. Although the working principle is different, the daily maintenance method is basically the same, as the equipment is really damaged, it is needed. Looking for professionals to come to repair, we do the purpose of daily maintenance of organic fertilizer granulator, which is to reduce and avoid equipment damage and affect the economic losses caused by organic fertilizer production operations. So how the organic fertilizer granulator should be maintained in daily use?

Fertilizer granulator machine maintenance method:
1. Keep the work site clean. Every time the organic fertilizer equipment is tested, the granulated leaves and the residual rubber sand inside and outside the granulating pot should be thoroughly removed, and the rubber sand and the fly-filled materials scattered and splashed on the organic fertilizer equipment should be cleaned. Wipe the machine surface exposed to the outside, apply anti-rust paint, and put on the corresponding cover to prevent secondary intrusion of dust.

2. The organic fertilizer equipment has no external oiling holes, and the gears and worm gears are lubricated with special butter for organic fertilizer equipment. The upper gear and the lower gear should be added with three times of butter per season. When refueling, the moving gear box cover and the transmission gear cover can be opened separately. Oil lubrication should always be dripped between the sliding gear box and the sliding surface of the bracket hinge. The worm gear box and bearing are shipped with the transmission butter, but the gearbox machine should be thoroughly cleaned once every one year of use, replacing all protective lubricants.

3. Always pay attention to the operation of the equipment, there should be no serious noise, and there should be no metal friction sound. If abnormality is found, stop using it immediately, check it, and use it after troubleshooting. If there is metal friction, check the gap between the organic fertilizer equipment.

4. Always check the standard gap between the devices.

5. When the equipment is overhauled, the working gap should be re-measured each time and adjusted several times to meet the standard before continuing to use.

6. If the device controller cannot be operated, check the power supply voltage, power socket, connection plug, etc., and check the internal fault of the controller.

Other article for reference:The working principle of the disc granulator in the fertilizer production line

How to choose cow dung organic fertilizer machine manufacturers?

Written by fertilizer production line on December 2nd, 2019.

The cow manure organic fertilizer production line can effectively reduce the eutrophication of surface water bodies caused by pollution, solve the environmental pollution caused by breeding industries such as cattle farms and other organic wastes, and lay a foundation for human consumption of green food and organic food. A good foundation is conducive to improving the safety and quality of agricultural products, and the ecological and environmental benefits are extremely significant.

organic fertilizer production machines

The cow manure organic fertilizer manufacturing process is using organic waste such as livestock manure to produce bio-organic fertilizer, pure organic fertilizer and organic inorganic fertilizer. The cow manure organic fertilizer equipment is characterized by fresh cow dung as raw material, after a series of processing and advanced technology, producing complete sets of production equipment of natural organic cow manure fertilizer.

The equipment is easy to operate, low in energy consumption and high in output. It adopts a new generation of high-efficiency granulation process, scientific and reasonable process, compact layout, and effectively solves the key technical problems, such as the organic raw materials are difficult to granulate of traditional granulation process, the addition amount is low, and the raw materials need to be dried and smashed treatment. The cow manure organic fertilizer equipment has stable operation, energy saving and no consumption, no three discharges, convenient maintenance, reliable operation and wide adaptability of raw materials. It can produce spherical pure organic fertilizer, organic inorganic fertilizer and biological organic fertilizer; the particles are round and uniform, smooth, good fluidity and high strength.

How to choose cow dung organic fertilizer production line equipment manufacturers? First, let us know what equipment is composed of cow dung organic fertilizer equipment?

Cow manure organic fertilizer equipment is divided into three configurations: low, medium and high:

Low configuration: semi-wet material pulverizer, horizontal mixer, fertilizer granulator machine, drum sieving machine, packaging equipment.

Medium configuration: semi-wet material pulverizer, horizontal mixer, fertilizer granulator machine, dryer, cooler, drum sieving machine, packaging equipment, belt conveyor, etc.

High configuration: chicken manure dehydrator, fermentation compost turner machine, semi-wet material crusher, horizontal mixer, fertilizer granulator machine, dryer, cooler, drum sieving machine, coating machine, packaging equipment, belt conveyor, etc.

The quality of organic fertilizer equipment directly affects the level of efficiency. Therefore, when we choose the cow manure organic fertilizer machine manufacturers, we must not blindly choose, we must choose strong and responsible manufacturers. It is not easy for customers to earn every penny. It is also necessary to carefully select the equipment that is more suitable for them and find a manufacturer of organic fertilizer production lines with excellent technology and good after-sales service.

Other article for your reference:Pig manure organic fertilizer production equipment

How to select fertilizer granulator suitable for compound fertilizer production

Written by fertilizer production line on November 29th, 2019.

Solid compound fertilizer granules are more effective than other fertilizers in use and soil, and are widely welcomed in the market. Fertilizer granulation is a basic treatment method in fertilizer production. Fertilizer granulator machine mixes different fertilizers into granules, which plays an important role in NPK fertilizer production line.

Basic fertilizers such as ammonium bicarbonate, urea, ammonium chloride, ammonium nitrate, ammonium sulfate, ordinary superphosphate, calcium magnesium phosphate, ingot phosphate, heavy superphosphate, potassium chloride, potassium sulfate, phosphate nitrate, dicalcium phosphate, potassium nitrate and so on are proportionally compounded to make the compound fertilizer we need, which is granulated by fertilizer granulator. Granulation is the granulation of fertilizer containing water. In NPK fertilizer production equipment, the commonly used fertilizer granulator machine includes double roller fertilizer granulator, rotary drum granulator and disc fertilizer granulator.

Fertilizer granulator machine granulates by agglomeration

The working principle of drum granulator and disc granulator is similar. When urea, calcium superphosphate, ammonium sulfate, ammonium phosphate, ammonium nitrate, potassium fertilizer and other fertilizers are mixed, they are aggregated into compound fertilizer granules through granulation operation. Rotary drum granulator and disc granulator are suitable for granulation of various ingredients, and the obtained granules are of good quality and high granulation rate of materials.

The main body of the rotary drum granulator is a horizontal drum. The drum is driven by motor, reducer and gear, which is supported by wheel and rollover. The drum granulator has strong production capacity, long material residence time and good granulation effect.

The main body of the disc granulator is a slightly inclined disc, which continuously rolls to complete granulation. In the production of disc fertilizer granulator, the production situation can be seen directly, which is convenient to observe and adjust in time, and the granulation rate of compound fertilizer is high.

Fertilizer granulator machine granulates by extrusion

The double roller fertilizer granulator makes the material into granules by extrusion method. The water content is not higher than 15%, and the materials with good fertilizer effect are mixed after mixing, and the material is strongly extruded by the roller press granulator, so that the molecular force between fertilizers acts and is extruded, and then the sheeted material is crushed into granular compound fertilizer.

How to choose fertilizer manufacturing process plant

Written by fertilizer production line on November 27th, 2019.

Fertilizer promotes the development of ecological agriculture, and the demand is huge. Investment in building fertilizer plants has become a popular project. Some investors want to build small-scale fertilizer manufacturing process to save costs, while some investors in fertilizer plants are going to build large-scale fertilizer plants to save unit production costs.

So what should we pay attention to when purchasing fertilizer manufacturing process plant? Here are some notes.

Determine the type of fertilizer and producton site. Determining whether to produce organic fertilizer or compound fertilizer affects the choice of site. If organic fertilizer is produced, it should not be too far from the farm where raw materials are provided. The type of fertilizer determines whether compound fertilizer equipment or organic fertilizer equipment is needed. Different types of fertilizer equipment also have differences.

Determine the fertilizer granulator machine. Granulation is the key link in fertilizer production and plays an important role in the quality of manufactured fertilizer. Fertilizer granules are cylindrical, spherical and flat spherical in shape. The granules produced by granulators of different shapes are different. The choice of granulator is related to the scale of fertilizer plant construction and local market. Fertilizer factories have different investment scales, different production processes, and different supporting equipment.

If a small fertilizer plant is to be built, it is suggested to configure simple machinery and equipment to reduce investment in equipment. The small fertilizer production line is composed of crusher, mixer, granulator, drum screener and automatic packing machine. If organic fertilizer fermentation is needed, it can be carried out with batten fermentation and windrow turning machine. The advantages are that they are more in line with the principle of aerobic fermentation. It is not easy to form anaerobic fermentation. The fermentation is full and complete, and the fermentation speed is fast. Forklift trucks can also be used instead of turner (the effect is not as good as turner), which can be adopted in terms of saving investment. According to the local environmental protection requirements, choose dust removal settings, where environmental protection requirements are high, choose heavy dust settings to meet the local emission quality standards.

Investment in large and medium-sized fertilizer plants, fertilizer production equipment can choose turning machine, automatic batching system, loader feeding hopper, crusher, mixer, granulator, dryer, hot stove, cooler, feeder, screener, cyclone dust collector, packing machine, etc. Increase mechanical automation, save manpower and cost. Organic fertilizer tank fermentation, can choose simple compost turning machine, double screws compost turning machine (suitable for large yield).

Determine the manufacturer of fertilizer manufacturing process plant. Several fertilizer machine manufacturers were inspected, and the strength, scale and reputation of the manufacturer of fertilizer equipment were fully understood. It is better to inspect the production workshop, finishing workshop and assembly workshop of the enterprise, to know the product quality, processing equipment, production process of the enterprise, and whether the fertilizer equipment produced by the manufacturer is professional. Referring to the customer cases that the manufacturer has completed, on-site test machine, the production site can best show the real operation of the equipment. Looking for fertilizer equipment suppliers with perfect after-sales service, suppliers provide professional technicians to guide customers to install and debug equipment, so that the equipment can operate normally, and provide corresponding training services.

Determine the safety performance of fertilizer manufacturing process plant. Safety is the first, before purchasing, we need to consider whether the production line has safety devices, whether the machine design is reasonable, whether safety factors are taken into account, whether the parts are not welded properly, whether the bolts are tightened, whether there is pollution, and so on. In addition, whether the overall operation of the equipment is smooth and whether the design of the production line is reasonable are also matters needing attention, because it relates to the efficiency and quality of the operation of the equipment. With the permission of the manufacturer, the operator can try to operate it in practice and feel its state conveniently.

fertilizer manufacturing process

Powerful organic fertilizer production equipment enterprises can customize their own equipment configurations for different customers according to their needs, and users can choose their own equipment according to their own needs. Zhengzhou Tianci Heavy Industry Machinery Co., Ltd. We provide customers with process design, equipment manufacturing, installation and commissioning, with full one-stop services. We are a leading agricultural fertilizer machine manufacturer in China, has strong technical strength in fertilizer machines. We have exported to many countries, India, Korea, Vietnam, Pakistan, Malaysia, Kenya, Sudan, Egypt, Algeria, Russia, Ukraine, Turkey, Spain, etc. Any question, welcome to contact us.

Fermentation Mode of Chicken Manure Organic Fertilizer Manufacturing Process

Written by fertilizer production line on November 27th, 2019.

Organic fertilizer, commonly known as farm manure, consists of various animal, plant residues or metabolites, such as human and animal manure, straw, animal residues, slaughterhouse waste, etc. Carbon-containing materials, mainly from plants and animals, are applied to the soil to provide plant nutrition as its main function. It not only provides comprehensive nutrition for crops, but also has long fertilizer efficiency. It can increase and renew soil organic matter, promote microbial reproduction, improve soil physical and chemical properties and biological activity. It is the main nutrient in green food production.

The production of organic fertilizer must go through composting fermentation process. Composting is a process in which organic matter is continuously degraded and stabilized by microorganisms under certain conditions, and a product suitable for land use is produced.

Site selection

The site should be flat, near the water source and sunny from the leeward. It does not pollute the environment and is easy to provide water.

Chicken Manure Organic Fertilizer Fermentation Mode

1. Store the materials and add the bacteria proportionally. Water content should be controlled at 60%-70%. Fermentation of less water is slow and aeration of more water is poor. Oxygen deficiency will corrupt and produce odor.

2. The start-up temperature is better than 15℃ (can be operated in four seasons, not affected by season, fermentation in indoor or greenhouse in winter as far as possible), and the fermentation temperature should be controlled between 60 ~65℃.

3. Fermentation of organic fertilizer needs oxygen consumption fermentation. In the process of operation, oxygen supply measures should be increased so as to mix well, turn over frequently and ventilate properly. The windrow turner can work accurately to meet the requirements, it’s an important equipment of fertilizer fermention. Windrow compost turning machine has the advantage of high efficiency, smooth operation, strong and durable, even turning throw.

4. Fermentation

Warming-up stage: generally only one day is needed from room temperature to 50℃.

High temperature stage: generally only 2 days from 50-70℃.

Cooling stage: from high temperature to below 50℃, generally about two weeks. The temperature began to drop to normal temperature, indicating that the fermentation was completed.

FAQ of Organic Fertilizer Fermentation:

1. Slow warming: no or slow warming of the reactor

Material is too wet, too dry, there is not enough nitrogen source, and the pH is too low.

2. Heap temperature is too high: during fermentation, the heap temperature is more than 65℃.

Poor permeability.

3. Odor: The odor of rotten eggs or rotten eggs is emitted from the stack.

Ammonia content is too high, material stacking is too dense.

After being processed by the chicken manure organic fertilizer production equipment, these organic fertilizers can be sold. Huaqiang fertilizer machine manufacturer supply professional organic fertilizer production line, and a series comprehensive service.

NPK fertilizer manufacturing production process

Written by fertilizer production line on November 26th, 2019.

In this article,brief introduction of complete equipment and process of compound fertilizer production line of Zhengzhou Huaqiang Heavy Industry Technology Co.Ltd.The npk fertilizer manufacturing process production of compound fertilizer is the general process of compound fertilizer production,which is of great significance for users to incest and fully understand the production of compound fertilizer.
The fertilizer manufacturing process of npk,compound fertilizer is roughly as follows:raw material proportioning,mixing,and stirring,agglomeration and crushing,material granulation,primary screening,particle drying,particle cooling,secondary grading of particles,coating of finished particles,quantitative packaging of finished particles,etc.
The following is a detailed introduction to each link of the production process of npk, compound fertilizer and in different producing parts it is equipped with different type fertilizer equipment:
The production process of npk,compound fertilizer includes raw material promoting,mixing,crushing and agglomeration,granulation,primary screening,particle,drying,particle cooling,secondary screening,particle coating of finished products and quantitative packaging of finished products.

1.Raw materia ingredients:generally the raw materials can be the urea,ammonium nitrate,ammonium chloride,ammonium sulfate,potassium chloride and other raw materials can be selected and prepared in a certain proportion.
2.Mixing parts:Minx the prepared raw materials evenly to improve the overall uniform fertilizer efficiency content of the fertilizer particles,and use the horizontal mixer or disc mixer to mix the raw materials.
3.Agglomerate crushing:the raw materials with uniform mixture are crushed to facilitate the subsequent granulation processing,mainly using chain crusher,etc.
4.Material granulation:evenly stirred and crushed materials are sent to the granulator by belt conveyor for fertilizer granulator machine(drum granulator,disc granulator and roller press granulator can be used),which is an essential and most important step in the production process of compound fertilizer.

npk fertilizer manufacturing process
5.Primary screening:preliminary screening of semi-finished particles.Unqualified particles are returned to the mixing and mining link for reprocessing.Generally,roller screener is used to sceeen the granulator.
6.Particle drying:the particles made by the granulator and screned by the first stage are sent to the dryer to dry the moisture contained in the particles,so as to increase the particle strength and facilitate the storage.Generally,the rotary dryer is used in the fertilizer manufacturing process.Sometimes,the series of fertilizer dryer is also equipped in the organic fertilizer production line.
7.Particle cooling:the dried fertilizer particles are easy to agglomerate due to their high temperature.After cooling,they are easy yo be stored and transported in bags and stored by a cooler.
8.Secondary grading of particles:The cooled particles are graded,the unqualified particles are crushed and regranulated,and the qualified products are screened out,which can be screened by the secondary drum screener machine.
9.Finsihed paticle coating:coating the qualified products to increase the brightness and roundness of the particles,so as to make the appearance more beautiful.Generally,the coating machine is used for coating.
10.Quantitative packaging of finished particles:the coated particles,which is to easy,the finished particles are sent to the silo by the belt conveyor for temporary srotage,and then connected to the electronic quantitative packaging scale,sewing machine and other automatic quantitative packaging and sealing bags,placed in the ventilation place for storage,so as to realize full automation.

Then production process of compound fertilizer is simple,the production process of npk, compound fertilizer production line is small,the floor area is small,the operation is simple,and the technical requirements are not high.