Hello, everyone. Today, I will tell you about the consequences of high impurity content in materials such as red bull cans, color steel tiles and car racks when crushers and shredders handle them, and the corresponding solutions.
Consequences
1.The blocking machine. Materials are mixed with impurities such as soil, plastic, cloth, rubber and wood, which have different hardness and toughness. When shredding, it is easy to entangle the shaft and jam the knife, which will lead to equipment downtime, and even burn the motor, break the knife shaft and break the blade seriously, and the maintenance cost is particularly high.
2.The discharge is unqualified. Impurities are mixed in the finished products, and the purity of metal materials is not enough, so they can’t be sold at a high price, and steel mills and recycling plants don’t accept them, which directly affects the income.
3. The wear and tear is intensified and the service life is shortened. Sandstone and hard sundries in impurities will quickly wear blades, liners and spindles, and the equipment failure rate will soar, the maintenance frequency will become higher, and the production efficiency will be greatly reduced.
4. Security risks. Forcibly starting by blocking materials may easily lead to motor overload, short circuit, even equipment damage and personal injury.
Solution
1. Source sorting, removing impurities in advance: manual sorting+magnetic separation+air separation+screening is added before feeding, and soil, plastics, cloth strips, wood and non-target metals are screened out first; These big pieces, such as colored steel tiles and car racks, should be dismantled and cut first to remove the sundries inside.
2. Control the uniformity of feeding: Do not feed in large quantities and in disorder at one time, and use a uniform feeder to ensure the uniform and loose feeding of materials, so as to avoid getting together and blocking the machine.
3. Equipment selection and matching: according to the amount of impurities in the material, choose a suitable shredder/crusher. If there are many impurities, use the combination line of coarse crushing+fine crushing+impurity removal, and choose wear-resistant and impact-resistant materials for the blades.
4. Regular cleaning and maintenance: after each shutdown, clean the cloth and plastic wound on the tool box and spindle, check the wear of blades and linings, and replace wearing parts in time to ensure the state of the equipment.
