NPK fertilizer production line

Operating procedures of crusher in npk fertilizer production line

fertilizer granulator Jan 7, 2023

Urea crusher is used to crush large granule urea to make material suitable for NPK production line granulation. In order to maintain the equipment and avoid unnecessary faults, strictly abide by the operation specification.

Here the fertilizer granulator manufacturer briefly introduces the operating procedures of this crusher.

(1) Before leaving the factory, the motor of urea mill has been sealed with lead and the coupling has been corrected. Do not loosen the parts at will;

(2) Regularly clean up the iron impurities on the permanent magnet cylinder and the permanent magnet plate of the feeder of the pulverizer;

(3) Regularly check the fineness of the crushed products to ensure that the materials are suitable for the rotary drum granulator.

(4) Clean or replace the bag of the dust collector regularly (ensure the air permeability of the bag), and regularly check the working condition of the solenoid valve (to see if it can work normally);

(5) Regularly check the wearing condition of each vulnerable part of the pulverizer to see if it belongs to normal wear;

(6) Always pay attention to the vibration of the crusher;

(7) When the hammer piece of the pulverizer is seriously worn and needs to be replaced, it is necessary to weigh it to ensure that the weight difference between the two opposite hammer pieces on the two relative hammer pin shafts is ≤ 1g, and the total weight difference of the hammer pieces on the two relative hammer pin shafts is ≤ 2G;

(8) When installing the screen, pay attention to whether the screen is properly worn and installed, and whether the screen needs to be replaced properly;

(9) The opening degree of the air supply door of the impeller feeder should be adjusted appropriately;

(10) If abnormal conditions such as large vibration and high noise of the crusher are found, it should be shut down immediately for inspection;

(11) 80 grams of grease should be added to the spindle bearing after every 40 hours of operation, but only to 60%. After 1800 hours of operation, the bearing box cover should be removed and all used grease should be replaced. When changing to fresh grease, add grease to the area around the rollers and bearing rings, and add 1/3 to 1/2 of the grease to the bottom case. Do not add too much grease;

(12) When it is found that the output of the grinder suddenly drops, in addition to the factors of raw materials, check whether the air supply door is in place, whether the pipeline is leaking, whether the pulse bag is blocked, whether the solenoid valve, fan is working normally, etc.

NPK fertilizer production line

Maintenance method of batching control equipment in npk fertilizer production line

fertilizer granulator Jan 7, 2023

The electronic batching scale is used to mix various materials in NPK production line, so that the chemical fertilizer is allocated in proportion to meet the characteristics of crop fertilizer demand. So how to maintain the batching scale and electronic control part?

1. The control room should be clean, dry and ventilated. It is better to install air conditioning to keep the indoor temperature constant;

2. After each shutdown and restart of the system, the host and channel instrument should be powered on and preheated for 15min before putting into operation;

3. Observe the pointer of the milliammeter. Under heavy load, it should not exceed 10mA. Ensure the uniform output of materials and facilitate the processing of fertilizer granulator;

4. Maintain the pre-pressure of the scale body. Normally, it is 1～2mA for no load (indicated by the pointer of the meter), and 6～8mA for heavy load, otherwise the sensor should be readjusted or replaced;

5. The sensor should be fixed on the mounting base, and the cable connecting the amplifier should not be loose;

6. The control cabinet should be fixed by embedded screws, and the shell should be grounded reliably (the grounding resistance is less than 4Ω);

7. There should be no vibration source, radiation source and strong electromagnetic source in the control room;

8. It is strictly prohibited to prevent tea cups, rice bowls and other objects on the control counter, and to prevent electric furnace and other heating equipment under the control cabinet;

9. Regularly clean the main engine, channel controller and other electrical appliances in the control cabinet to keep the interior clean;

10. After the batching system is shut down, if it is not used for a long time, all the power supplies of the main engine, channel instrument and electrical appliance shall be turned off; if the system is shut down for more than 15 days, the host and channel instrument shall be powered on and preheated for more than half an hour every 15 days to prevent moisture intrusion.

NPK fertilizer production line

Bio fertilizer granulator is used for granulation of various organic substances after fermentation

fertilizer granulator Jan 4, 2023

Bio fertilizer granulator is used for granulation of various organic substances after fermentation, breaking through the traditional organic granulation process. Raw materials do not need to be dried and crushed before granulation. Spherical particles can be directly batched and processed, saving a lot of energy. The traditional fertilization and garbage fertilization methods not only cause some harm to the environment, but also do not give full play to their role. With the application of more and more organic fertilizer, compound fertilizer, microbial fertilizer and chemical fertilizer, granulating equipment such as biological fertilizer granulator has entered people’s life and production.

The double roll extruding granulator has the following advantages: 1. It operates circularly to realize continuous production and high output of finished products; 2. The material is forced to be compressed and shaped by mechanical pressure without any additives, so as to ensure the purity of the product. 3. The particle strength can be adjusted, and the finished product strength can be controlled by adjusting the pressure of the roller; 4. The extruding granulator is applicable to various raw materials, and the particle strength can be adjusted freely according to different materials. 5. Compact structure, convenient maintenance, simple operation, short process flow, low energy consumption, high efficiency and low failure rate.

The Double Roller Extrusion Granulator for Compound Fertilizer Making is a necessary tool for NPK fertilizer’s efficient and successful production. This strong machine can produce compound fertilizer granules with uniform size and shape and high accuracy and consistency. The process of making granules using this granulator is simple and straightforward, allowing for larger batches to be produced fast and economically. This granulator is designed to handle a wide range of raw materials, enabling for the production of a wide range of compound fertilizer types. It can also process solid and liquid raw materials, making it incredibly versatile.

NPK fertilizer production line

Correct operation of large organic fertilizer equipment in npk fertilizer production line

fertilizer granulator Jan 4, 2023

How to operate fertilizer equipment correctly in NPK production line? For the operation of fertilizer production equipment, people think that they are very experienced in operation, but in actual operation, all kinds of faults come from nonstandard operation. Incorrect use will cause problems with fertilizer equipment.

In order to avoid wrong operation, here summarizes the following methods to operate fertilizer machine correctly.

1. Operators should not wear gloves. When the fertilizer granulator is blocked, it is forbidden to put hands into the filler hopper.

2. Before starting the fertilizer equipment, it is necessary to check whether the connecting bolts of each part of the unit are tight, whether the tightness of the drive belt is appropriate, and whether the power line is in good condition. Whether the shafts are parallel.

3. After NPK production line is started, make the equipment idle for 3 minutes and check whether the operation sound is normal. It can only work after the machine rotates smoothly.

4. Do not stop the machine immediately after the work is finished, but idle for 3 minutes so that the materials in the machine can be completely discharged. Cleaning and maintenance shall be carried out after shutdown.

5. After 300 hours of operation of the fertilizer dryer, wash the bearings and change the oil.

6. During the work of the organic fertilizer and NPK fertilizer production line, pay attention to the operation of the dryer at all times, and feed evenly to prevent clogging, and do not overwork for a long time.

7. When the fertilizer dryer is running, the operator shall not leave the unit, and shall not disassemble the machine during operation to observe the working conditions in the drying room.

8. The fixed operation of heavy equipment such as rotary drum granulator, organic fertilizer granulator and dryer should be fixed on the cement foundation.

NPK fertilizer production line

Benefits of processing organic fertilizer with fertilizer by bio fertilizer granulator

fertilizer granulator Jan 4, 2023

At present, the actual utilization rate of chemical fertilizer in China is only 30% – 45%, even lower in some regions! After the application of organic fertilizer, the beneficial biological activity improves the soil structure, increases the soil water and fertilizer conservation capacity, thus reducing nutrient loss, and increasing the effective utilization rate of chemical fertilizer to more than 50%. It can also reduce the amount of chemical fertilizer and the cost of fertilization. Since the 1970s and 1980s, the UK, France and Japan have reduced the use of pesticides and fertilizers. Organic fertilizer is the main fertilizer. The use of chemical fertilizers and pesticides has been greatly reduced. The grain output has increased and the quality is much better than before. Therefore, the fertilization method of “giving priority to organic fertilizer, supplemented by chemical fertilizer” is a reasonable fertilization method at present!

Five benefits of the combination of organic fertilizer and chemical fertilizer produced by biological fertilizer granulator! Benefit 1: The fertilizer has high nutrient content and fast fertilizer effect, but its duration is short and the nutrient is single. Organic fertilizer is just the opposite. The mixed use of organic fertilizer and chemical fertilizer can complement each other and meet the nutrient demand of crops in each growth period.

Benefit 2: After chemical fertilizer is applied to the soil, some nutrients are absorbed or fixed by the soil, reducing the availability of nutrients. After mixed application with farmyard manure, it can reduce the contact surface between fertilizer and soil, reduce the possibility of fertilizer being fixed by soil, and improve the availability of nutrients.

Benefit 3: Generally speaking, the solubility of chemical fertilizer is large, which will produce high osmotic pressure on the soil after application, affect the absorption of nutrients and water by crops, and increase the chances of nutrient loss. If it is mixed with organic fertilizer, it can avoid the disadvantage that crops absorb nutrients and water.

Benefit 4: If acid fertilizer is only applied to alkaline soil, after ammonium is absorbed by plants, the remaining acid root will combine with hydrogen ions in the soil to produce acid, which will lead to acid enhancement and soil hardening. If mixed with organic fertilizer, it can enhance the buffer capacity of the soil, effectively regulate the pH and prevent the increase of soil acidity.

Benefit 5: Since organic fertilizer is the energy source of microbial life, chemical fertilizer is the inorganic nutrition for microbial growth and development. The two mix the vitality of microorganisms to further decompose organic fertilizers. The activity of soil microorganisms can also produce vitamins, biotin, niacin, etc. Increase soil nutrients, improve soil vitality and crop growth.

NPK fertilizer production line

How much profit can be gained from processing fertilizer with sheep manure organic fertilizer production line

fertilizer granulator Jan 4, 2023

Organic fertilizer can improve the utilization rate of fertilizer in the soil. The main raw material of organic fertilizer is animal manure. They include: pig, cow, chicken, sheep, etc. There are many advantages in using sheep manure to produce organic fertilizer.

Raw material analysis of sheep manure organic fertilizer

Nutrition analysis: 24% – 27% organic matter content, 0.7% nitrogen content to 0.8%, 0.45% to 0.6% and 0.3% potassium content to 0.6%, organic matter sheep urine 5% content, 1.3% to 1.4% phosphorus content, nitrogen content is extremely low, very rich in potassium, as high as 2.1% to 2.3%

Character analysis: Sheep are ruminants, but they rarely drink water, so the stool is dry and thin, and the stool volume is very small. Sheep manure is a kind of thermal fertilizer between horse manure and cow manure.

Sheep excreta and urine are rich in nutrients, which can not only easily decompose the effective nutrients absorbed by crops, but also have the late nutrients that are not easy to decompose. It is a good fertilizer that combines the efficiency and speed of fertilization. The decomposed sheep manure treated by the compost turning machine is suitable for the application of various soils.

Technology of sheep manure organic fertilizer production line

Sheep manure was composted and fermented by high-temperature fermentation bacteria, straw was crushed, and the materials were mixed with biological compound bacteria, and the compost turner was used for regular composting. The decomposed organic matter can be directly made into powder fertilizer or further processed. Sheep manure compost as a part of raw materials, mixed with inorganic fertilizer according to the formula, can be called high efficiency organic fertilizer after NPK production line processing.

Special reminder: all animal manure must be put into the ground through harmless fermented fertilizer before use. Because the raw fertilizer contains a variety of harmful bacteria, it will breed diseases and insect pests, damage soil health, thus affecting the healthy growth of crops.

In short, organic fertilizer is a kind of green and harmless soil fertilizer, and it is the mainstream of future agricultural development. It is recommended that we do not use chemical fertilizers in a single organic fertilizer for the best results.

NPK fertilizer production line

Protection mechanism of belt conveyor in fertilizer production line equipment

fertilizer granulator Jan 4, 2023

In the chemical fertilizer, grain, industrial processing and other industries, we often see such a machine, the material is poured into its bottom, and then with the drive of the belt conveyor, the material is transported to another location, which is very convenient. It is a belt conveyor.

Belt conveyor is widely used in NPK production line of fertilizer industry, which greatly facilitates production and processing. In the design of belt conveyor, the designer also designed the great protection of common problems according to its performance characteristics to ensure the normal operation of the belt conveyor.

1. Belt conveyor speed protection:

If the conveyor fails, such as the motor is burned, the mechanical transmission part is damaged, the belt or chain is broken, the belt slips, etc., the magnetic switch in the accident sensor installed on the driven part of the conveyor cannot be closed or cannot be closed at normal speed . At this time, the control system will function after a certain delay according to the inverse time limit characteristic, and the speed protection circuit will take effect to execute some actions and cut off the power supply of the motor to avoid the expansion of the accident.

2. Temperature protection of belt conveyor:

When the belt conveyor roller and the belt friction cause the temperature to exceed the limit, the detection device (transmitter) installed close to the roller sends out an over-temperature signal. After the receiver receives the signal, a 3s delay is passed to execute some actions and cut off the power supply of the motor , The conveyor stops automatically, which plays a role of temperature protection.

3. Belt conveyor stop protection at any point in the way:

The chemical fertilizer is granulated by rotary drum granulator, and then dried, cooled and screened. Different processing of NPK production line is connected by conveyor. If it is necessary to stop at any point along the conveyor, turn the switch at the corresponding position to the intermediate stop position, and the belt conveyor will stop immediately. When it needs to be re opened, first reset the switch, and then press the signal switch to send a signal.

NPK fertilizer production line

Operation process of organic fertilizer disc granulator

fertilizer granulator Jan 4, 2023

Control of water content during operation of disc granulator oforganic fertilizer equipment. When the disc granulator is running, the inclined disc granulation process is adopted. The granulation process requires high moisture content, and poor moisture control will lead to the decrease of granulation speed. Therefore, in the process of processing, attention should be paid to the use of spray to observe the moisture control changes of granulating raw materials.
The personnel operating thedisc granulatorshall pay attention to the quality of various materials during the feeding control process to ensure that sundries, large pieces and large particles are not mixed into the feeding. In addition, they should also pay attention to the temperature of the equipment feeding, because if the temperature of the die head is too high, the material is easy to break and stick to the die head after startup. In this case, they should wait for the die head to cool before continuing to operate.
Pay attention to the change of inclination angle of disc granulator during operation. The disc granulator has a certain inclination. If the inclination angle changes due to unexpected reasons, it will also affect the granulation rate of organic fertilizer particles and the service life.
During the operation of thedisc granulator, the operator shall also pay attention to the temperature change of the machine body at any time. The operator can touch the blade with clean hands. If the blade does not touch the hand, the temperature should rise immediately until the blade touches the hand. Then, during the normal operation of the granulator, the operator should maintain a stable machine temperature and not allow the temperature to rise or fall. In addition, the operator should pay attention to maintaining the temperature around the vent until the head temperature reaches about 200℃.
When using the disc granulator, in order to ensure that the produced particles are uniform, smooth and complete, attention should be paid to ensuring that the feeding is uniform and sufficient. The feeding speed of the equipment should be properly matched with the feeding speed to avoid the decline of particle quality and output.
When the disc granulator body is unstable, pay attention to check whether the coupling clearance is too tight and loosen it in time. If the bearing part of the reducer is hot or noisy, it shall be repaired and oiled in time.
During the installation of the disc granulator, the main body shall be kept perpendicular to the horizontal plane, and the perpendicularity shall be calibrated and corrected after installation.
Before the installation of the disc granulator, the concrete foundation shall be prepared, installed on the horizontal concrete foundation and fastened with bolts.
Before power on, ensure that the power supply meets the power supply requirements set by the disc granulator, and configure the power cord and control switch according to the equipment power supply.
After installation, check whether the bolts of each part are loose and whether the main engine compartment door is fastened.

In the process of using the organic fertilizer disc granulator, if the 10 precautions in the operation process are strictly followed, the granulation rate will be effectively improved, the energy consumption will be reduced, and the service life of the equipment will be extended.

NPK fertilizer production line

How to choose the screen of the drum screen in npk fertilizer production line?

fertilizer granulator Jan 4, 2023

Drum screening machine is also widely used in fertilizer production industry. Both the powder and the granule processed by the fertilizer granulator should be screened by the roller screen.

The screen selection of drum screening machine is related to the efficiency of the equipment and the service life of the screen, so the selection of the screen is also more important in the fertilizer machine.

The screen mesh of the drum screening machine is generally selected as manganese steel woven mesh, stainless steel woven mesh, and manganese steel woven mesh is generally recommended. In addition, the selection process is also related to the particle size of the screened material. For example, the size of the screen hole should consider the particle size made by the rotary drum granulator.

The material size is generally between 10mm-200mm, using manganese steel woven mesh. The sieved material whose particle size is between 200 mesh and 300 mesh adopts stainless steel woven mesh. When the screen is too small, it is generally necessary to install a lining screen, to protect the working screen, and secondly to play a supporting role to extend the life of the working screen.

NPK fertilizer production line

Working principle of new organic fertilizer granulator

fertilizer granulator Jan 4, 2023

Working principle of the new organic fertilizer granulator: the new organic fertilizer granulator uses the high-speed rotating mechanical stirring force and the generated aerodynamic force to continuously realize the mixing, granulation, spheroidization, densification and other processes of fine powder materials in the machine, so as to achieve the purpose of granulation. The shape of the particles is spherical, the sphericity is 0.7, the particle size is generally between 0.3-3mm, and the granulation rate is 90%. The particle diameter can be properly adjusted according to the material mixing amount and the spindle speed. The lower the mixing amount, the higher the speed, the smaller the particles, and vice versa. Scope of application: This machine is especially suitable for granulation of light and fine powdery materials. The finer the basic particles of fine powder materials, the higher the sphericity of particles, and the better the quality of particles. Typical application materials: chicken manure, pig manure, cow manure, charcoal, clay, kaolin, etc. In view of the particularities of granulation of organic fermentation fertilizers and organic fertilizer raw materials, such as livestock manure, manure, compost, green manure, sea manure, cake fertilizer, peat, soil miscellaneous fertilizer, three wastes, microorganisms and other urban domestic waste, the particles are particles.

The qualified rate of granulation of the new organic fertilizer granulator is as high as 80-90%, which is suitable for a variety of different formulations. The compressive strength of organic fertilizer is higher than that of disc and drum, and the big ball rate is lower than 15%. The stepless speed regulation function of the machine can adjust the uniformity of particle size according to user requirements. This machine is suitable for direct granulation of organic fertilizer after fermentation, saving drying process and greatly reducing production cost. Now this new type of wet granulator for organic fertilizer is favored by the majority of users. The birth of new products, new production processes, energy conservation and environmental protection are all trustworthy.