How to operate a npk compound fertilizer production line? Operation Guide FAQ 2025

This article is an operation manual for the compound fertilizer production line. This article can be used to train the production personnel of the compound fertilizer plant who are about to take up their posts.

Compound fertilizer factory raw material batching station position operating procedures: 5 steps

1. Take over 15 minutes in advance to check whether the pit urea crusher and Dap crusher, bulk crusher and metering belt conveyor are clean. Are there any abnormalities?
2. After taking over the shift every day, keep abreast of the various raw materials required for the formula produced by the shift, dismantle the raw material packaging line for feeding at the front, collect the removed threads, and send them to the designated location after get off work. Do not cut the bag or use a hook to pull the packaging bag without permission.
3. During normal 15–15–15 18–18–18 fertilizer production and feeding, the continuity of feeding should be maintained, and the material should not be interrupted in the hopper. The plastic lining bags and sutures must be brought into the feeding port, and the empty bags must be bundled into 50 bags each (the quantity must be accurate, and the general control personnel must fully cooperate with the general control personnel to check the number of bags). After get off work, they will be delivered to the designated location and stacked neatly.
4. Regularly check the lubrication points of the batching station eletric weighing scale under your jurisdiction and the amount of grease added in the reduction box, and lubricate them. Observe at any time whether the belt conveyor is running smoothly, whether there is any deviation, and whether the supporting wheel is flexible. If there is any jamming or jamming, report it immediately.
5. During the production process, the measuring belt conveyor and weighing scale body must be kept clean at all times to avoid affecting the weighing accuracy. Half an hour before the shift, do a good job of cleaning the pit, crusher and metering belt.

Urea/dap/map chain mill operating procedures manual: 5 steps

1. Turn off the power, open the cover of the urea/dap/map chain mill, and observe whether there is accumulation on the spindle.
   If there is any material, broken chain or missing hanging feet, please remove it. When clearing the accumulated material, do not hit the box with iron tools to avoid aggravating the accumulated material.
2. Rotate the main shaft belt pulley of the urea/dap/map chain mill. There should be no jamming or obstruction on the two shafts. If there is any jamming or obstruction, clean it. If cleaning fails, please ask the squad leader or report for repair.
3. After closing the box cover, start the motor and check whether the direction of the main shaft of the chain crusher meets the production process requirements. At the same time, listen to whether there are any abnormal sounds in the main shaft bearing seat. If there is any abnormal sound, stop the machine and ask the team leader for instructions or report for repair.
4. Pay attention to whether the electromechanical transmission V-belt is evenly stressed and whether there is any slipping. If there is any, stop the vehicle and drive the vehicle after troubleshooting.
5. Keep the equipment and the assigned area of this post clean. Carry out equipment handover work.

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NPK Compound fertilizer production line granulator position operating procedure manual: 5 steps

1. Take over the shift 15 minutes in advance. When entering the position, you must wear labor protection supplies, understand the production formula of the shift clearly, check whether there is sticky material in the granualtor cylinder, and whether the dryer inlet is blocked.
2. Adjust the dosage of steam, urine, liquid ammonia, and sulfuric acid according to the formula into the rotary drum granulation machine, and operate carefully and safely based on the principle of preferring dryness to wetness to make the materials dry and wet appropriately; control the yield rate to about 80%. If there is excessive moisture, The material must be pushed off the aging belt to avoid blocking the dryer. Make timely records of different positions and summarize experience in making materials.
3. The supporting wheels and transmission gears of the fertilizer granulator should be refueled three times per shift. If any abnormal noise is detected, the vehicle should be stopped immediately and reported to the team leader to avoid major losses.
4. Half an hour before parking, the output at the station shall not be less than 80% of the normal feeding amount. When parking, the boiler station should be notified to lower the furnace temperature, all valves at the ammonia station should be closed, and the urinary melting station should close the urinary melting valve and flush the urine pipeline. , and finally close the material steam valve.
5. When handing over the shift, the accumulated materials in the fertilizer rotary drum granulator cylinder should be cleaned up and the equipment should be in good condition. Cleaning of equipment must be carried out under the supervision of a dedicated person. Keep the equipment and the assigned area clean at all times to create good working conditions for the next shift.

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NPK Compound Fertilizer Plant Hot Air Stove Operation Manual：5 steps

1. Understand the production status at work and whether the drying induced draft fan and jet induced draft fan are operating normally, the door opening of the butterfly valves in each pipeline, and the control range of the dryer inlet and outlet temperature indicators.
2. When stoking a stove normally, we must do the “Three Diligences”: frequently add coal, frequently remove ash, and frequently observe. We must mix various types of coal as required, record coal consumption conscientiously and accurately, and complete the work on time. Record the temperature of the drying inlet and outlet, and hand the record to the squad leader when you get off work.
3. During normal drying production, the hot air generator/hot air stove temperature should be controlled according to regulations without excessive deviation. The moisture content of the drying materials should be observed from time to time, the drying temperature should be adjusted, and the operation of the fan should be checked from time to time.
4. When the system is temporarily stopped, turn off the jet fan, open the flue valve, open the furnace door, and gradually reduce the furnace temperature and drying temperature until the fault is eliminated.
5. After the burned slag is safely extinguished, it should be pushed to a designated place for storage. Pay attention to safety and fire prevention.

NPK fertilizer production plant dryer and cooler operation manual

1. You must wear a safety helmet when entering the job. Before starting the rotary dryer/cooler, you should check whether there is any accumulation of material in the hood cover/front panel/end panel of the dryer cooler. If there is any accumulation of fertilizer, clear it before driving. After normal operation, check whether each discharge port is smooth at any time.
2. The lifting plate in the fertilizer rotary dryer/cooler cylinder should be inspected regularly. If it is damaged or fallen off, it should be reported to the team leader in time, records should be kept, and repairs should be given at the appropriate time. Regularly check whether the air duct is blocked and clean it.
3. The supporting rollers and transmission gears of dryer/cooler should be refueled three times per shift. If any abnormal noise is found, report it immediately to the team leader and stop the machine in time to avoid causing major losses. The reducer should be inspected once per shift. If there is any lack of oil, add lubricating grease promptly.
4. Observe at any time whether the gear wheels of the dryer and cooler are operating normally, whether the cylinder is displaced, and whether the welding part of the vibrating hammer is secure. Pay close attention to whether there is vibration in the reduction box and transmission parts, and whether the elastic pads and bolts of the electromechanical and reducer couplings are intact. If any problems are found, report them for repair in a timely manner.
5. It is prohibited to enter the interior of the rotary dryer/cooler during normal operation. If necessary, it must be reported to the main control room to stop and a dedicated person will be assigned to monitor it.

Compound Fertilizer Plant centrifugal blower/fan Operation Specification Manual: 4 steps

1. Before running the centrifugal blower, check whether the type and quantity of grease added in the centrifugal blower bearing seat meets the regulations. All fasteners should be free from looseness. Manually rotate the coupling to drive the fan main shaft blades, and pay attention to whether there is any bias.
2. During the operation of the fan/centrifugal blower, there should be no friction or impact between the operating part and the casing. Check the oil temperature in the centrifugal blower bearing seat to ensure that the bearing temperature rise is not too high, the seals are in good condition, and carefully observe whether there is any vibration in the axle box. Are the centrifugal blower motor current and temperature rise conditions indicative of the production process parameters?If there is any abnormality, stop the machine and report for repair.
3. Stop the centrifugal blowe/fan regularly to clean dust, dirt, water and other debris inside the fan and gas delivery pipes. In particular, the fan blades must be cleaned carefully and thoroughly, and the blades must not be struck with iron tools.
4. Regularly check the oil level in the centrifugal blower bearing box, refuel in time, and change the oil regularly. When the fan is overhauled, the main shaft and impeller must be dynamically balanced.

Fertilizer making machine bucket elevator operating procedures:4 steps

1. Regularly check whether the upper and lower sprocket transmission systems of the bucket elevator are intact, whether the bearing seat bearings are running well, whether there are any debris in the bucket elevator, and whether the chain hooks and buckets are broken or jammed. The bucket elevator reduction gearbox is regularly filled with gear oil and lubrication and maintenance records are kept.
2. The bucket elevator can be operated under load only after the bucket elevator is connected to the power supply and is idling normally. When the bucket elevator is parked, it should be ensured that the bucket elevator is in a no-load state before parking.
3. When the bucket elevator is temporarily parked and needs to be cleaned, the power must be cut off and specially supervised. Use an iron bar to block the bucket elevator hopper. No part of the body may enter the bucket elevator shell. Cleaned materials must not be filled into the running bucket elevator.
4. After each shift, the area around the bucket elevator must be cleaned up.

Cow-dung organic fertilizer peoduction line Conveyor operating procedures manual: 4 steps

1. Before the operation of the conveyor equipment, check whether the type and quantity of grease added in each lubrication point and the reduction box comply with the regulations of the equipment technical documents. Whether the conveyor belt joint is intact. The conveyor belt’s conveyor lines and channels should not affect the operation and operation of the equipment.
2. When the conveyor equipment is operating, each operating part should remain stable without deviation or abnormal noise. The conveyor tensioning device should be adjusted flexibly, and the conveyor roller should not be slipping.
3. The rubber rollers used for conveyors should run smoothly. If any jamming or jamming is found, they should be replaced immediately and reported to the machine repair shop for repair.
4. No one is allowed to cross the running conveyor belt to avoid danger. The area where the equipment is used must be kept clean at all times.

Chicken Manure fertilizer plant rotary trommel screen/vibrating screen screening station operating procedures: 4 steps

1. When taking over, check whether the trommel screen/vibrating screen equipment is running well, whether the screen mesh is leaking, and whether the mesh is not smooth; avoid large particles or fine powder from flowing into the next process.

2. Clean the trommel screen/vibrating screen in a timely manner during production, push and turn over the materials frequently to ensure that the materials are fully screened and improve the screening efficiency. It is found that the material is fully screened and the screening efficiency is improved. It is found that the amount of returned material is too large or the material is too wet, and Report to the squad leader and granulator.

3. During the operation of the trommel screen/vibrating screen equipment, people should not stand on the screen basket to assist in screening to avoid accidents.

4. When handing over a shift, do a good job of cleaning up the equipment area

Compound fertilizer coating machine job operating procedures：6 steps

1. Check the steam inlet ball valve, pipe interface, and pump interface on the compound fertilizer-coated engine oil agent barrel for blockage or leakage. If any problems are found, clear them in time. When using, open the quick drain valve first, and wait until the condensed water in the steam pipe is drained. Close the quick drain valve, open the steam valve, and heat for 15–30 minutes (depending on the temperature) before starting the mixer, control the temperature at about 100°C, start the compound fertilizer coating machine to feed material, and start the spray pump.
2. While heating the condensed water discharged from the steam heating pipe in the compound fertilizer coating machine barrel, open the quick drain valve of the fuel injection pump outlet pipe. After the condensed water is drained, open the steam valve of the heating pipe and check the fuel injection pump outlet. The oil pipe is heated so that the coating agent in the pipe is in a melted state. This is determined by observing the vapor and liquid emerging from the pipe mouth of the compound fertilizer coating machine.
3. When the compound fertilizer coating machine is stopped for a short period of time or if no material enters the compound fertilizer coating machine, the spraying should be stopped (open the oil return valve first, then close the main injection valve), but do not close the steam valve and do not stop the mixer. Before shutting down normally, Close the front valve of the oil pump, then close the fuel injection pump, and then close each steam valve. Operate carefully and deal with problems promptly if found.
4. A fire extinguisher should be equipped next to the compound fertilizer-coated engine oil tank. Operators are not allowed to smoke or use open flames, nor are they allowed to pile up debris to avoid fires and heavy losses.
5. When the equipment is running, it is necessary to frequently observe whether there are any abnormal sounds in the supporting wheel, gear and reduction box of the compound fertilizer coating machine, and whether the cylinder is displaced. The supporting wheel and transmission gear should be refueled three times per shift, and the reduction box should be inspected once per shift. If it is found If oil is lacking, add it in time.
6. Wear labor protection supplies when taking up the job, operate safely to avoid burns, keep good job records, and keep the equipment and contract area of the job clean.

Organic fertilizer/water-soluble fertilizer/compound fertilizer fully automatic packaging line operation procedures: 7 steps

1. Packaging position operators must be familiar with the use of compound fertilizer packaging machines and sewing machines, and operate them carefully as required. During work, the weighing personnel must make random inspections from time to time to ensure that the packaging weight is accurate.
2. Packaging operators must ensure that the appearance of the product is qualified, the weight is accurate, and the packaging bag must match the product. Each package must contain a certificate of conformity for this product. Those that need to be folded must be hemmed as required before the package mouth can be sealed. If the package is not qualified, the package will not be sewn. Ensure that there are no jumps in stitching, that the sewing route is straight, that the thread ends at the front and rear ends should not exceed 9 cm and 3 cm respectively, and that the wrapped products are sent to the finished product warehouse in a timely manner.
3. The stacking position must ensure that the finished products are stacked neatly and the quantity is accurate. Each package of products must be face up. Care should be taken to avoid scratches on the finished bags. At the end of each day of packaging, the product quantity must be checked with the squad leader.
4. The personnel in the packaging position are responsible for the safekeeping of the packaging bags, certificates, and sewing threads to ensure the accuracy of the packaging bags. No one else is allowed to use the packaging bags for other purposes.
5. Pay attention to safe operation, observe whether electrical equipment is leaking or damaged at any time, and report any abnormalities in a timely manner.
6. Keep the site clean at all times, fill in the job records truthfully and carefully, and do a good job in shift handover.

Compound Fertilizer Plant Air Compressor Operator Operation Manual: 4 steps

1. Before using the air compressor every day, check whether the connection parts are loose and tighten them immediately if necessary. The pressure gauge should be restored to “0” before starting.
2. After the air compressor is running, when the pressure reaches the predetermined pressure value, the pressure switch should be able to cut off the power supply and stop the air compressor from working. Otherwise, the machine should be reported for repair and adjustment. After use every day, turn off the air compressor, open the drain valve at the bottom of the air storage tank, and let out the dirt in the tank.
3. The air compressor should be inspected at least twice every time it is running to check whether there are any abnormal sounds or vibrations. If any abnormality is found, it should be shut down immediately for repairs. The oil-water separator should be checked once a day. If there is water in the separator, drain it in time. The air filter should be replaced regularly as appropriate. The muffler should be cleaned once a month. Regularly check whether the safety valve is working properly.
4. Check the air compressor oil level every day. If it is lower than the lower limit, add oil immediately. Replace the lubricating oil every two months. Keep the area around the air compressor clean.

Operating procedures for bulk warehouse of water-soluble fertilizer npk compound finished products:

1. Control the cutting speed of finished compound fertilizer at any time to avoid blocking the elevator due to too fast cutting. If it is found that there are too many powders and large particles in the material pile, the roundness of the product appearance is poor, the color of the product is large, the product temperature is too high, the material is damp and deteriorated, etc., it must be reported to the team leader in a timely manner.
2. Check the operation status of the belt conveyor from time to time, and report any abnormalities to the squad leader or take relevant measures in a timely manner. During operation, foreign matter must not be introduced into the finished product.
3. It is forbidden to wear slippers when entering the bulk warehouse. When the air temperature is high, shoes must be wrapped in plastic bags before entering the bulk warehouse. The fertilizer cleaned out on site in each shift must be screened at the end of production and then put into the feeding port of the granulation belt.
4. Keep records of delivery, frequently go into the ditch to check the operating status of the belt conveyor, report any problems promptly, keep the work area and equipment of the post clean at all times, and perform maintenance work such as refueling the equipment of the post on a regular basis.

Fertilizer production line electric central control room operating procedures manual guide: 5 steps

1. Be conscientious and responsible for starting and stopping according to the operating procedures; press the long bell three times to start all equipment, and press the long bell twice to start a single machine.

2. When driving and parking, attention should be paid to the relevant conditions and personnel at the production site. Especially during the process of parking for maintenance and cleaning, the operator must hang a warning sign (driving is prohibited during maintenance). It is absolutely forbidden to drive or perform maintenance without receiving feedback from the maintenance personnel. After completion, you must obey the orders of the squad leader or the person designated by the squad leader before driving. You must ensure personal and equipment safety.

3. Fill in the job operation record according to the actual production, and record the current changes of the main equipment in a timely manner. If any abnormality occurs, stop the work in time, take corresponding measures, and report in a timely manner. It is prohibited to disassemble electrical equipment without permission to prevent electric shock.

4. Pay close attention to the operation conditions of each metering belt conveyor and flow rate. During normal production, physical proofreading is performed once an hour. When the error is large, the proofreading interval should be shortened. Any abnormalities should be notified to each post in a timely manner.
operators, and adjust technical parameters at any time and keep records. It is strictly prohibited to adjust or change the compound fertilizer production formula without permission.

5. Clean your own contract area every day to ensure that the control room and electrical equipment are hygienic and clean. Miscellaneous personnel are not allowed to enter the control room.

Conclusion: How to operate a npk compound fertilizer production line. User ultimate guide 2024.

This article is a training document used internally by a compound fertilizer factory. The article covers the entire compound fertilizer production line from raw material feeding, raw material crushing, raw material weighing, raw material transportation, compound fertilizer granulation, compound fertilizer drying and cooling, compound fertilizer coating, Compound fertilizer packaging, compound fertilizer palletizing and other aspects. It involves the operating specifications of all equipment such as electronic control parts, conveyors, bucket elevators, crushers, hot blast stoves, fans, bag dust collectors, granulators, dryers, coolers, and coating machines.

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