This drum pre-cleaner is a multi-purpose pre-cleaning equipment for effectively separating various large impurities. It has the advantages of high throughput, low power consumption, high efficiency, stable and reliable running, impact structure, and small floor space.
It is suitable for pre-cleaning of front-stage material feeding procedures in many processing industries, like feed mills, flour mills, grain storage, etc. The machine can be used at the intake section of the processing plant or silos to eliminate coarse impurities like pebbles, paper, sticks, wood pieces, leaves, cobs, etc.
1. High Efficiency: The cleaning effect is good, and the rate of removing large impurities is greater than 98%.
2. Wide Applications: It is suitable for the cleaning section of granular raw materials in many industries such as feed, grain, oil, and fat.
3. Flexible Adjustment: The inclination angle of the screen drum can be adjusted arbitrarily within the range of 4°-8° according to different materials to obtain a better cleaning effect.
4. Easy Maintenance: The sieve can be disassembled and replaced easily, saving costs.
5. Stable Operation: Direct gear transmission with gear reducer, compact structure, stable operation, and low failure rate.
6. Reasonable Design: The discharge section of the screen cylinder is provided with a spiral, which is helpful for the discharge of large impurities and can prevent the material from flowing out with large impurities.
The drum-type pre-cleaner is mainly composed of a box, frame, inclined drum, transmission device, support device, and other components. When the material falls on the rotating drum from the feeding port, the material is in full contact with the drum and rolls on the drum due to the action of the rotating drum. The material smaller than the screen hole passes through the inner drum and falls on the outer drum. The materials that cannot pass through the sieve holes are gradually pushed toward the outlet end by the rotation of the inclined drum, and finally, they are collected by the hopper to enter the curtain crusher through the material pipe to continue to be broken. The materials falling on the outer drum are continuously screened by the outer drum. Fine powder and fine particles smaller than the sieve holes pass through the sieve holes and fall into the hopper and enter the granulation bin through the material pipe. Collected by the hopper through the material pipe to enter the next process.