Crushing method and device thereof for peeling metal and nonmetal in waste cables

Abstract

The invention discloses crushing method and device thereof for peeling metal and nonmetal in waste cables. Waste cables pass through a material conveying device through a feed inlet, and are sheared into segments by a shearing device on a material shearing table, wherein the ratio of the length of waste cable segments and the diameter of metal conductors of the waste cables is 2:1. The material conveying device is provided with wheel type belts for transportation, and the diameter of conveying belt pulleys gradually decreases from the feed inlet to a discharge outlet, the material shearing table consists of two grooved shearing tables which are separated mutually and closely adjacent with each other, the gap between the two grooved tables just allows cutters to pass through, the rotary surfaces of the shearing cutters are perpendicular to the conveying direction of materials, and two ends of the cutters are fixed on rotary wheels with bolts. The invention reduces the possibility of grinding metal in the cables into powder, strengthens the adaptability of shearing and crushing devices to the cables, can well control the shearing length of center cables, and preferably peels metal and nonmetal from the waste cables. The peeling efficiency of metal can reach 100%.

Description

technical field [0001] The invention discloses a crushing method and device for stripping metal and nonmetal in waste cables, belonging to the category of solid waste treatment and recycling. Background technique [0002] During my country's "Eleventh Five-Year Plan" period, industries such as electric power, railways, rail transit, energy, construction, communications, ships, and automobiles still maintained relatively large investment scales, and my country's wire and cable industry is in a period of rapid growth. With the rapid development of our country and the world's social economy, the production and consumption of cables has become the second largest industry in my country after the automobile industry. The rapid development of the wire and cable industry will inevitably bring about the elimination of a large number of waste wire and cables. The composition of the cable includes a conductor (valuable metal materials such as copper and aluminum), an insulator, and a ...

AI Technical Summary

Problems solved by technology

If the diameter of the metal conductor in the cable is larger than the distance between the cutters, strong grinding will occur between the cutter and the metal conductor, causing damage to the cutter of the crushing equipment;

[0006] 2) Loss of metal resources: When the diameter of the metal conductor in the broken cable is larger than the distance between the moving knife and the fixed knife, more metal powder is likely to be produced when there is strong grinding between the knife and the metal, resulting in this part of the metal powder in the subsequent sorting process It is easy to lose, and there are problems such as deformation, roughness, and bending on the metal surface;

[0007] 3) Low crushing efficiency: When the diameter of the cable is smaller than the distance between the knives, the crushing equipment cannot peel off the metal and the sheath of the cable well, so the metal resources in this type of cable cannot be recycled, so the crushing efficiency for thin wires Low; moreover, there is a sieve in the crushing equipment of this type of copper rice machine, and only when the size of the crushed particles is smaller than the sieve hole, it will leave the crushing equipment. Due to the sieving effect of the sieve, it is easy to cause even the materials required by the particle size to be crushed in the equipment. The interior will also be broken repeatedly, doing more useless work;

[0008] 4) Noise and dust pollution: During the crushing process, due to the rough metal conductor, the violent collision between the cable and the crushing equipment is likely to generate a large amount of mechanical noise in this process, causing serious noise pollution and dust pollution, which deteriorates the working environment;

[0009] Through the analysis of the above problems, it can be seen that the most suitable crushing object for the crushing equipment in the traditional copper rice machine is the case where the diameter of the metal conductor in the cable is the same as the distance between the cutters, that is, the waste cable with a single line type

In addition, the state of cables in traditional crushing equipment is chaotic, and the stripping of metal and non-metal in cables is a random crushing method

Therefore, in theory, this kind of crushing equipment is more difficult to crush, especially when dealing with messy wires (cables with different diameters), and the crushing efficiency is low.

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