Feed mill production equipment cleaning problems

Feed mill production equipment cleaning problems

1 . Cleaning of the mixer
The interior of the mixer will be covered with a layer of material after a period of use. If the oil content is high, a thick layer of material will often accumulate after one shift. Liquid methionine nozzle, so there will be material accumulation on the inner wall of the mixer, beside the nozzle, on the shaft and paddle, and on the switch door. Therefore, the general feed factory cleans up after the end of the shift, turns off the power before cleaning, and the cleaner locks the switch knife himself puts the key in his pocket, and sticks the special tool on the inner wall, nozzle, paddle, etc. Scrape off the material layers on the leaf and shaft, and after cleaning, open the door of the mixer, and clean up the door and sealing ring. The materials cleaned up on the same day can be remanufactured according to the quality control requirements. If the time is too long, the materials with peculiar smells and mildew will not be returned to the machine and will be scrapped. Some mixers are relatively large and require people to enter before they can be cleaned. At this time, safety work is particularly important. In addition to locking, special personnel must be guarded. After cleaning, the person who enters the mixer is responsible for unlocking the power box door. Mixer cleaning frequency: 1~3d cleaning once is advisable.
2 . Granulation system cleaning
The granulation system is composed of a granulator, a cooler, a crusher, and a grading screen, among which the modulator part and the granulation chamber of the granulator need to be cleaned most carefully. Because the steam enters the above-mentioned parts and acts on the feed, it will increase the moisture, heat, and viscosity of the feed, and it is easy to adhere to the inner wall, shaft, and paddle of the modulator. The machine modulator is difficult to open, so the frequency of cleaning is generally not high. In some feed factories, the modulator is broken and removed and cleaned once. In order to ensure product quality, the author thinks it is more appropriate to clean it once a week to half a month. If the machine is shut down for a long time, it should be opened and cleaned to prevent the sticky feed from becoming mildewed. The granulation chamber should be cleaned thoroughly after each shift is finished. If there is cross-contamination between two varieties during variety adjustment, it must be cleaned up. Then make the next variety. After the granulation is completed, wait for the cooler to be emptied, and one person enters through the inlet hole, and cleans the residue on the four corners and the sieve plate with tools such as wooden sticks, and wipes the four walls; The material is completely removed. It is easy to accumulate material at both ends of the crusher.
3. Cleaning of the permanent magnet cylinder
The permanent magnet cylinder is for removing magnetic substances, such as iron. Iron filings have an impact on feed varieties and are harmful to equipment. Failure to clean up in time may lead to equipment damage, and may also affect the passage of feed and cause blockage. It is recommended to clean up after each shift. The impurity part cleaned by the permanent magnet cylinder will be treated as a waste product.
4. Cleaning of initial cleaning sieve, finished product inspection sieve, and grading sieve
The initial cleaning sieve, finished product inspection sieve, and grading sieve are all used for cleaning, removing impurities, and grading, and they are all easy to block. Especially the initial cleaning sieve, when the amount of impurities is large, it is easier to block and needs to be cleaned in time. Generally, the above-mentioned sieve is opened after each shift, and the rope ends, impurities, hard blocks, etc. inside are cleaned to keep the sieve room clean and the sieve holes are not blocked. The cleaned materials will be processed according to the actual situation, and some of them can be used.
5. pulse bag filter, cyclone dust collector cleaning
Pulse bag filters and cyclone dust collectors are equipment for collecting dust. The dust is adsorbed on the surface of the bag or transported to the silo or bag with the airlock. After a long time of operation, a thick layer of dust will accumulate on the inner or outer wall of the bag (Insufficient pulse or worse when it fails), it is recommended to open the door after each shift and clean it with wooden sticks and compressed air. The cyclone dust collector is not easy to open. Observe the glass observation hole every day to see if it is blocked and whether the air shutoff device does not turn. If the above problems occur, they need to be dealt with in time. body, and shake off the accumulated material on the inner wall of the cylinder.
Under normal circumstances, the dust part in the brake dragon can be used, and the moldy and deteriorated parts must be scrapped.
6. Silo Handling
The silo, including the cylindrical steel silo, the chamber bulk silo, the silo to be crushed, the batching silo, the silo to be granulated, the finished product silo, the buffer silo, etc., is a storage device for storing a certain amount of raw materials. All the above silos need to be cleaned, but according to the different materials and frequency of use, the cleaning requirements are also different.
Cylindrical steel silos, room-type silos, and bulk silos generally store granular raw materials such as corn, wheat, and soybean meal. Before using a new silo, it is necessary to enter the silo to remove the joints between the steel plate and the cement foundation or the screws left on the ground. Sweep the mixed strips, cement blocks, etc., clean up the garbage and other sundries between the discharge port and the scraper machine, and then wash them with rice bran and corn until they are clean and free of sundries before unloading and storing. During use, empty the silo regularly, enter the silo to check whether there is rain leakage, clean up dead corner materials, agglomerated materials, and mildewed materials, clean them up, and then load new raw materials. The cleaning frequency is once every 1-2 months.
The bins to be crushed, batching bins, bins to be granulated, and finished product bins are generally inside the workshop, and most of them are welded and assembled by steel plates, mostly in a square shape, so there will be Agglomeration, some silos have more accumulated material in dead corners. This part of the material does not flow for a long time and sticks to the wall of the silo. Some factories use high-moisture raw materials. After crushing, the hot air gathers on the top of the silo, absorbing the Dust is often very thick and difficult to be found. It only attracts attention after it becomes moldy and falls into the silo. The above-mentioned silos should be checked frequently and should be cleaned when necessary. After emptying the silo, it is recommended to use a compressed air machine to tie it to a socket-able bamboo pole or other poles and use compressed air to blow off the residual materials everywhere, and then turn on the scraper machine or The auger cleans the residual materials, and then uses fresh raw materials to wash the warehouse. The cleaned materials and washing warehouse materials can be used according to the quality control opinions
7 Elevator conveyor equipment cleaning
Normally, there will be some material accumulation in the base of the elevator. The accumulation of material in the base of the self-cleaning elevator will be much less, and the accumulation of material in the square base will be more, so it should be cleaned every once in a while. It is recommended that corn and wheat raw grain elevators be used every week Clean up once a day for powdery raw materials, and clean up products that cannot be cross-contaminated every time they are changed.
The bottom of the horizontal and vertical conveying equipment and the pipe wall has unclean material, but in the above-mentioned equipment in normal use, the material is flowing inside, only the two ends will have material that does not flow, and the cleaning time interval can be longer, and it should be cleaned once a month. During normal refueling, it can be cleaned by washing the warehouse, or it can be processed in the form of head and tail materials. The accumulated material on the pipe wall can be knocked with a rubber hammer or blown off with compressed air.