How to clean and maintenance the feed pellet production line

1. Cleaning the mixer

After a period of use, the inside of the mixer will build up a layer of material. If the grease content is high, a thick layer of material will often accumulate in one shift. In addition to the oil injection device, the inside of the mixer also has liquid anti-mold Spray nozzle, liquid methionine nozzle, so there will be accumulation of material on the inner wall of the mixer, beside the nozzle, on the shaft and paddle, and on the 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 knife, puts the key in his pocket, and sticks the specially made tool to the inner wall, nozzle, and paddle. The material layer on the leaf and the shaft is scraped off. After cleaning, open the door of the mixer and clean the door and the sealing ring. The materials cleaned up on the day can be recycled according to the quality control requirements. If the time is too long, the materials with peculiar smell and mildew cannot be returned to the machine and be discarded. Some mixers are relatively large and require people to enter to clean them. At this time, safety work is particularly important. In addition to locking, a special person must take care of them. After cleaning, the person entering the mixer is responsible for opening the lock of the power box door. Mixer cleaning frequency: 1~3d cleaning is appropriate.

2. Cleaning the Granulator system

The granulation system is composed of a granulator, a cooler, a crusher and a grading screen. Among them, the modulator part and the granulation chamber part of the granulator most need to be cleaned up. Because steam enters the above parts and acts on the feed, it will increase the moisture, heat and viscosity of the feed, and it will easily adhere to the inner wall, shaft, and blades of the modulator. The structure of the granulating cavity is complicated, and there is accumulation of material in almost every place. The machine modulator is more difficult to open, so the frequency of cleaning is generally not high. In some feed factories, the modulator is broken down and cleaned once. In order to ensure product quality, I think it is appropriate to clean up once a week to half a month. If the machine is shut down for a long time, it should be opened for cleaning to prevent the sticking of the feed from becoming mildewed. The pelleting cavity should be cleaned thoroughly after the oil is filled at the end of each shift. During the variety adjustment, if the two varieties are cross-contaminated, they must be cleaned. After making the next variety. After the granulation is finished, wait until the cooler is 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; remove the dust and accumulation on the leveler and glass The material is completely removed. Material is easy to accumulate at both ends of the crusher.

3. Cleaning the permanent magnet cylinder

The permanent magnet cylinder is demagnetized, such as iron. Iron filings have an impact on feed varieties and are harmful to equipment. Failure to clean up in time may cause damage to the equipment, and may also affect the passability of the feed and cause blockage. It is recommended to clean up after each shift. The impurities removed from the permanent magnet cylinder will be treated as waste.

4. Cleaning the primary cleaning screen, finished product inspection screen, and grading screen

The primary cleaning sieve, finished product inspection sieve, and grading sieve are all used for cleaning, removing impurities and grading, and are easy to block. Especially for the initial cleaning screen, when the amount of impurities is large, it is easier to block and needs to be cleaned in time. Generally, open the above-mentioned sieve after each shift to clean the rope, impurities, and hard lumps inside, and keep the sieve room clean and the screen holes are not blocked. The cleaned-out materials will be processed according to the actual situation, and some of them can be used

5. Cleaning the Pulse bag filter, cyclone dust collector

Pulse bag dust collector and cyclone dust collector are equipment for collecting dust. The dust is adsorbed on the surface of the bag or transported to the silo or bag with the air shutter. After a long period of operation, a thick layer of dust will accumulate on the inner or outer wall of the bag. (Insufficient pulse or more serious failure), it is recommended to open the door at the end of each shift and clean it with wooden sticks and compressed air. The negative pressure dust removal of the special crusher will seriously affect the output if it is not cleaned in time. The cyclone dust collector is not easy to open. Check the glass observation hole every day to see if it is blocked and if the air shutter does not turn. If the above problems occur, they need to be dealt with in time. After the accumulated material is cleaned up, use a rubber hammer to tap the brakes and cones. Body, shake down the material on the inner wall of the backlog.

Under normal circumstances, the dust in the Chakron can be used, and must be scrapped if it is moldy and deteriorated.

6. At the silo

Silo including cylindrical steel silo, chamber bulk silo, smashing silo, batching silo, pelleting silo, finished product silo, buffer silo, etc., are storage equipment for storing a certain amount of raw materials. All the above silos need to be cleaned. , But depending on the materials and frequency of use, the cleaning requirements are also different.

Cylindrical steel silo, house-type silo, bulk silo, generally store granular raw materials such as corn, wheat, soybean meal, etc. Before the new silo is used, it is necessary to enter the silo to connect 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 debris between the discharge port and the scraper, and then wash them with rice chaff and corn until they are clean and free of debris before they can be stored. During use, empty the warehouse regularly, enter the warehouse to check whether the cylindrical warehouse is leaking, clean up dead corner materials, agglomerated materials, and moldy materials, clean them up, and load new materials. It is advisable to clean up once every 1-2 months.

The warehouse to be crushed, the batching warehouse, the warehouse to be granulated, and the finished product warehouse are generally inside the workshop. Most of them are assembled by welding steel plates. The square shape is mostly. Therefore, the corners, the upper part of the cone, the upper side of the angle iron, and the rivets Some silos have more 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 to absorb the material in the silo. Dust is often thick and not easy to be found. It is only noticeable when it becomes moldy and falls into the silo. The above-mentioned silos must be checked frequently, and the empty silos should be cleaned when necessary. After the empty silos are cleaned, it is recommended to use a compressed air machine to tie the bamboo poles or other poles that can be sleeved and blow away the residual material everywhere with compressed air, and then turn on the scraper or The auger cleans the remaining materials, and then washes the warehouse with fresh raw materials. The cleaned materials and the washed warehouse materials can be used according to quality control opinions.

7 . Cleaning the elevator conveyor equipment

Normally, there will be some accumulation of material in the base of the hoist. The base of the self-cleaning hoist will have a lot less material, and the square-shaped base will have a lot of material, so it should be cleaned every once in a while. It is recommended that the corn and wheat raw grain elevators be weekly Clean up once, the powdery raw materials are cleaned up once a day, and the products that cannot be cross-contaminated are cleaned up every time the product is changed.

The bottom of the horizontal and vertical conveying equipment and the pipe wall are dirty with scraped materials, but the above equipment in normal use, the material is flowing inside, only the two ends will not flow, the cleaning interval can be longer, and the cleaning is 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. The material on the pipe wall can be knocked with a rubber hammer or blown down with compressed air

8 . Cleaning the Feeding port 

At the end of feeding, the raw materials should be cleaned up, and all of them should go to the next process. The materials sticking to the feeding fence, pipe wall, and weighing hopper should be cleaned at regular intervals. It is best to clean up once a day, at least once every 3 days.

9. Cleaning the liquid adding equipment

Oil tanks, molasses pots, liquid anti-mold pots and their attached spray pipes, pump filters, nozzles, etc. should be cleaned regularly. Raw materials such as oil, molasses, and liquid methionine are relatively easy to deteriorate, so they must be cleaned once within a certain period of time. It is very important to formulate a complete cleaning plan based on the characteristics of these raw materials, weather, storage conditions and other factors that affect the extent of these raw materials. It is recommended that liquid irrigation, tanks, pipes, and pumps are cleaned every three months in the first and fourth quarters. Clean up every 1-2 months in the third quarter. It is relatively difficult to clean the oil tank. If necessary, it should be cleaned with hot water, detergent, and caustic soda. The molasses, liquid methionine, and liquid anti-mold agent can basically be cleaned. The cleaned equipment should be cleaned with cleaning fluid and dried before use.

10. Cleaning up other equipment places in the feed factory

The feed factory is full of dust, and each equipment may stick to dust, raw material dust, oil, water and other substances. Therefore, the equipment not listed in this article does not need to be cleaned, such as the grinder, which also needs to be cleaned regularly. In addition, dust and powder on the floor, walls, and windows of the feed factory affect the quality of the product, and will be brought to the feed factory if you are not careful. Therefore, the cleaning of the site is also very important.