In order to facilitate the reasonable operation of the equipment by the rice industry operators during the debugging or production process, better leverage the characteristics of the rice production line equipment, and maximize the superiority of the process performance, Shuanghu Grain and Oil Machinery, based on what it has seen and heard during the start-up of the rice production line, now briefly discusses some views on the general operation process and precautions of the rice production line Welcome experts and engineers in the rice industry to offer corrections.

I. Raw Grain Feeding and Initial Cleaning Section:

1. When feeding materials, it is necessary to pay attention to maintaining the stability and quantification of the material flow rate to ensure the normal operation of the elevator and improve the working efficiency of the equipment. Moreover, the feeding workers should promptly clear impurities such as straw, hemp ropes, broken stones, and bricks from the screen.

2 Regularly clean the large impurities on the screen cylinder of the primary cleaning screen, such as ropes and miscellaneous wires, once a day to ensure the screen surface is unobstructed and the equipment operates normally.

3 When feeding materials into the original grain silo, pay close attention to the loading situation of the silo. Once the silo is full, promptly shut down the elevator and notify the feeding point to stop feeding.

4 According to the actual air volume requirements of the equipment and each suction point, adjust the air volume regulator on the air network in a timely manner to achieve the ventilation and dust removal effect of the air network.

5 Clean the impurities in the air network ducts in time to ensure their unobstructed flow. Depending on the specific situation, gently tap the air duct and brake of the dust collector in a timely manner to prevent impurities and dust from deposulating in the air duct and thus blocking the duct and the air damper.

Ii. Cleaning Section

1. By adjusting the gates above or below the equipment, keep the output of the previous and subsequent equipment consistent and do not exceed that of the subsequent equipment. After a certain period of control and adjustment, when the output of each equipment is basically consistent, marks can be made on the gates of the corresponding equipment to facilitate future operations.

2 Regularly clean the screen surface of the vibrating screen to ensure a certain screening area to guarantee the screening effect. As large impurities such as hemp ropes and straw have poor fluidity, do not crumb them into a ball and throw them into the discharge port after cleaning to prevent clogging of the ash pipe. By adjusting the air volume regulator of the vertical suction duct of the vibrating screen, the suction effect of the vibrating screen can be ensured. The air volume should not be too large or too small (if it is too large, the rice will be sucked away; if it is too small, light impurities cannot be removed completely).

3 Adjust the flow rate and suction volume of the stone remover according to the different properties and varieties of raw grains: (1) If the flow rate is too large, the feeding flow on the fish-scale sieve plate of the stone remover will be too thick or the suction volume is too small, the rice cannot float up, resulting in excessive grain content in the stones; (2) If the flow rate is too small, the feeding flow on the fish-scale sieve plate is too thin or the air volume is too large, the stones cannot climb up, resulting in excessive stone content in the grain and excessive hard impurities, which aggravates the damage to the rubber rollers of the husking machine. Therefore, the air damper, gate and the air volume regulator of the selection chamber on the stone remover should be well controlled to ensure the stone removal effect of the stone remover.

4 The permanent magnet cylinder before entering the dehusker can prevent magnetic impurities such as bolts from entering the dehusker and damaging the rubber rollers. It should be cleaned frequently (once every 3 to 5 days depending on the specific situation).

5 The impurities in the air mesh of the vibrating screen and the stone remover, as well as in the ash box at the impurity outlet of the equipment, should be packed in a timely manner. The corresponding ash discharge pipes and the diaphragm should be gently tapped frequently to ensure that the impurities fall in time and prevent sedimentation.

Iii. Dehusking and Separation of Bran and Brown Rice Section

1. The dehusker is an intermediate hub that connects the front and back equipment of the rice mill and plays a crucial role. Therefore, the operation of the dehusker is a very important link. When operating, the following points should be noted: (1) The sequence of turning on and off the machine: When starting the machine, lower the pressure weight first, and then open the material door; When shutting down, first close the material door and then lift the pressure weight. (2) For different varieties of raw grains, pay attention to controlling the rolling distance between the rubber rollers properly to ensure a certain husking rate (generally between 80% and 90%, for specific details, refer to the dehusking machine manual). If the husking rate is too high, the rate of broken grains will increase; if it is too low, the return flow of rice will increase, the output will not rise, the burden on the rice bran screen will increase, and the rate of broken grains will also increase. And try to prevent the occurrence of adverse phenomena such as large and small heads and flash. According to the wear and tear of the rubber roller, the rubber roller should be replaced in time. (3) The feeding should be uniform, and the thickness of the material flow on the feeding flow plate of the dehusking machine should be as consistent as possible. (4) The air volume should be adjusted appropriately. If it is too large, the plump grains will be sucked away. It's too small to suck up the rice husks thoroughly, resulting in a decline in the separation effect of the rice husks. (5) Pay attention to adjusting the air volume regulator of the rice husk grain lifter on the air supply network and the air supply regulating device at the air supply port to achieve the effect of grain lifting. (6) The air duct of the dehusking machine adopts two-stage dust removal. The rear brake dragon and its air duct pipes should be frequently tapped and cleaned to prevent the clogging of the air damper or pipes.

2 The rough selection section is composed of a gravity valley rough separation screen and a thickness classifier. When operating, the following points should be noted: (1) Maintain a certain material flow rate on the screen surface of the valley rough screen. The material flow should not be too thick or too thin, otherwise the screening effect will decline. (2) Control the return flow (return husking, return to the main screen) well, reduce the return husking, increase the number of screenings, lower the risk of breakage and crushing, and enhance the output of the equipment. (3) The feeding of the gravity coarse grain separation screen should be uniform. After starting the machine, close the movable door. When the material covers the screen surface and the coarse grain content meets the standard, open the movable door. When stopping the machine, ensure a certain material flow rate on the screen surface to facilitate the next start-up operation. (4) Determine whether the brown rice needs to go through the thickness classifier according to the production requirements. If it does not need to go through, then move the two brown rice outlet buckets of the brown rice separation screen to the other side. In this way, it can be directly produced in the subsequent process or directly packaged through the adjustment of the subsequent bucket.

Iv. Whitening and Polishing Section:

1. The operation of the rice mill is relatively frequent. (1) Select the corresponding rollers according to different varieties of raw grains (for specific details, refer to the rice mill manual); (2) After starting up, open the hopper gate to release the material and control the flow rate well. Select the corresponding weight of the pressure ball according to the rice milling needs to ensure the rice milling pressure in the rice milling chamber and achieve a good rice milling effect. The weight of the pressure ball should not be too large or too small. If it is too large, the rice crushing rate will be high; if it is too small, the rice milling force will be insufficient. (3) When opening the gate, pay close attention to the ammeter of the rice machine. Do not exceed the red scale line on the ammeter of the rice machine. When processing indica rice, the current can be appropriately reduced. After the machine is running normally, strengthen the observation to prevent the current from being too high when the rice machine's screen is clogged. When the screen surface is damaged, replace the screen surface in time to prevent rice leakage from blocking the air duct. (4) Pay attention to adjusting the suction volume of the rice machine to suck away the floating chaff in the rice milling chamber and on the surface of the rice grains. The chaff should be packed in time to prevent equipment blockage. Also, frequently tap the karcher (except for the pulse dust collector alone) to avoid material blockage and thereby improve the ventilation and dust removal effect.

2 The operation of the polishing machine is basically the same as that of the rice machine. On the basis of operating the rice machine, it is also necessary to pay attention to strengthening the control of the amount of water added. If the water injection is too large, the polishing machine is prone to clogging the screen. If the water injection is too small, the surface of the rice grains will not be bright and the polishing effect will not be achieved.

3 Both the rice mill and the polishing machine are high-speed rotating equipment. Therefore, it is necessary to clean the magnetic separation equipment in this section in a timely manner to prevent hard impurities from entering the rice mill and the polishing machine and damaging the equipment.

V. White Rice Processing Section

This section is generally composed of white rice grading screens, length grading machines, color sorters and other equipment. Some manufacturers also have a rice blending section. The process is relatively flexible, so the operation requirements are also higher. The processing line must be replaced in a timely manner according to production needs.

1. When starting the white rice grading screen, pay attention to observing whether there are any abnormal sounds. According to the specific situation, the nuts on the corresponding steel wire rope hanging mechanism can be adjusted to solve the problem. Select the corresponding rotational speed and the position of the weight block as needed to achieve a better screening effect, and clean or replace the screen surface in a timely manner. According to the needs of production and processing, select the appropriate opening position of the discharge movable door.

2. The operation of the length classifier is relatively simple. Select the corresponding drum according to the variety of raw grains to be processed and adjust the appropriate drum inclination Angle (for specific details, refer to the selection machine manual) to achieve a better selection effect.

3. The color sorter has a relatively high technological content. It requires careful operation. According to the specific conditions of the raw grain (referring to the content of colored grains and white grains in the raw grain) and the color sorting requirements, the corresponding equipment technical parameters should be selected for operation to achieve a good color sorting effect.

Vi. Packaging and Sealing Conveying Section

This section is mainly composed of magnetic separators, finished product belt conveyors, weighing scales and sealing, packaging and conveying equipment. As the varieties of rice change frequently, it is necessary to pack them promptly and quickly. According to the specific packaging requirements, adjust the working parameters on the metering scale and select the corresponding packaging bags.

Vii. Ventilation and Dust Removal Air Duct

Ventilation and dust removal is a very important link in rice processing, playing a significant role in the overall hygiene environment of the workshop and the treatment of by-products. The following aspects should be mainly noted in its operation:

1. The sequence for turning on and off the machine: (1) When starting up, turn on and off the fan first, and then start the fan. (2) When shutting down, first turn off the fan and wait for 3 to 5 minutes before turning off the air damper.

2 Air volume regulation: According to the suction requirements of each device, adjust the air volume regulator (i.e., butterfly valve) on the air duct to meet the needs of the production process.

3 The dust discharged from the air duct should be cleaned and packed in time. For specific details, please refer to the above sections.

Viii. Crushing Section

The sequence for turning on and off the machine: When starting up, first activate the air filter of the crusher, then start the crusher, and finally open the pneumatic three-way regulating gate to control the flow rate. When shutting down, do the opposite.

When adjusting the flow rate, the gate should be pulled out slowly and not too quickly to prevent excessive flow from clogging the crusher.

3. Pay attention to cleaning the magnetic separator on the crusher frequently.

4. Replace the screen surface in a timely manner as needed.

Ix. Points to Note for the Entire Process Operation:

1. The sequence for turning on and off the machine: When starting up, first activate the air compression system and the air source system of the dust collector. After storing a certain pressure, release the air (the air compressor is generally 7-8 KGF). For production needs, start the air screen from the front to the back first, then start the elevator (if interlocked with the equipment, start the equipment first), then start the equipment in the process sequence, and finally open the gate valve to release the material for equipment operation. When shutting down, first close the gate valves and equipment, then the hoist and air filter, and finally the air source of the dust collector and the air compression system.

2 Select the corresponding processing technology route according to the production requirements.

3 Attention should be paid to the allocation of equipment output before and after the entire process; otherwise, inconsistent output before and after may cause blockage of equipment such as hoists and other adverse consequences.

4 Due to the poor fluidity of dust and other impurities, it is necessary to clean the pipelines frequently, especially the impurity and air network pipelines (2 to 6 times a day depending on the specific situation).

5 Regularly clean and maintain the equipment according to specific circumstances.

6 Regularly check and replace the lubricating oil in the equipment (depending on the different equipment).

7 The electrical control room should be kept clean and dry, and be supervised by a dedicated person to promptly detect faults and notify the equipment operators to eliminate them.

Shuanghu Grain and Oil, Shuanghu Grain and Oil, Shuanghu Grain and Oil, Shuanghu Grain and Oil, Shuanghu Grain and Oil, Shuanghu Grain and Oil, Shuanghu Grain and Oil, Shuanghu Grain and Oil
Wujin Shuanghu Grain and Oil, Wujin Shuanghu Grain and Oil, Wujin Shuanghu Grain and Oil, Wujin Shuanghu Grain and Oil, Wujin Shuanghu Grain and Oil

Shuanghu Grain and Oil Machinery, Shuanghu Grain and Oil Machinery, Shuanghu Grain and Oil Machinery, Shuanghu Grain and Oil Machinery

                                                                    If you need to delete the reprinted article, please contact 18921007789