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What is Scrap metal shredder
2021-06-12 05:45:20

Scrap metal shredder is a professional machine that crushes and processes large-size solid metal materials to the required size. According to the size of the crushed material or the crushed material, the crusher can be divided into coarse crusher, medium crusher, fine grinder, and superfine grinder. This machine is mainly composed of worm gear motor, casing, frame, combined spiral tooth cutter head, driving shaft, driven shaft, large gear, small gear and other parts.

With the rapid growth of my country's economic construction, my country's steel industry has also developed rapidly. In 2004, my country's steel output reached a record high of 272 million tons, making China the world's largest steel country. After rapid development in recent years, the iron and steel industry has gradually shown contradictions such as insufficient demand for natural resources, excessive energy consumption per ton of output, environmental pollution, and strict national control. As the "second mining" of the iron and steel industry, scrap steel resources have the advantages of energy saving, pollution reduction, environmental protection, recyclability, and low smelting costs, and its impact will be greater and greater. In recent years, the supply of scrap steel has been increasing year by year, and its role has gradually expanded. In 2004, it exceeded 50 million tons, which enabled further recycling of resources.

Domestic scrap steel mainly comes from social scrap recycling institutions. The social recycling of scrap steel accounts for about 60% of the country's scrap steel. It is the main source of scrap steel in my country; secondly, steel mills produce scrap steel; in addition, although my country has become the largest steel producer, my country's overall steel reserves are not very sufficient. Therefore, the total amount of domestic scrap steel cannot meet the demand for scrap steel in steelmaking. About 1/4 of the amount depends on imports to make up for the shortage of domestic scrap steel resources. Electric furnace steelmaking is a major consumer of scrap steel resources, and with the further expansion of electric furnace steelmaking in the iron and steel industry, the demand for scrap steel resources will also further expand.

There are four types of external forces applied to the solid during the crushing process: rolling, shearing, impact, and grinding. Rolling is mainly used in coarse and medium crushing, suitable for crushing hard materials and bulk materials; shearing is mainly used for fine crushing, suitable for crushing tough materials; impact is mainly used for medium crushing, fine grinding, superfine grinding, and suitable It is suitable for the crushing of brittle materials; the grinding is mainly in fine grinding and ultra-fine grinding, which is suitable for the crushing of small pieces and fine particles. The actual crushing process is often several external forces acting simultaneously.


Scrap hammer shredder and metal grinder can be roughly divided into two types according to their working principles:

One: It adopts dual-axis or single-axis low-speed rotation, and uses the cutter head to cut, cut, tear, and pull the material. It is transmitted to the driven shaft through gear transmission, so that the moving knife of the driving shaft and the stationary cutter head on the housing form a relative movement. The spiral tooth cutter discs on the driving shaft are arranged staggered, so that after the material enters, it is simultaneously subjected to the effects of squeezing, tearing and shearing, so that the material is broken.

Two: Use the high-speed rotating impeller to agitate and break the long metal shavings. The high-speed rotating (about 1000 rpm) main shaft is connected with multiple round steel plates in series, and the circular plate rotates in conjunction with the main shaft. Four to six pinion gears made of manganese steel are mounted around the circular plate. The pinion rotates freely on its own small shaft. Long and chaotic clumps of metal chips enter the machine from the top port and are twisted by gears on the high-speed rotating steel plate. They are torn into small pieces and flow out from the bottom sieve. The size of the sieve can be broken according to the requirements of the metal chips. Selected by size.

The metal shredder (Scrap metal shredder) uses the basic principle of the motor to drive the wind wheel to squeeze. Driven by the high-speed and high-torque motor, the crushed material can be sufficiently and effectively crushed in the crushing chamber, and the material to be crushed is torn into a suitable Specifications of broken objects. The broken materials go through the air whirling sorting system to separate the paint bucket from the non-paint bucket, and the entire system is equipped with a dust removal device to minimize the dust pollution hazard generated during the production process. The equipment mainly has the advantages of high output, low energy consumption, high efficiency, and uniform discharging. And when using the equipment, it has low noise, no pollution, simple operation and convenient maintenance.

Features of Scrap metal shear:

1. It has the advantages of large torque, high output, no noise, wear resistance, etc.

2. It can greatly reduce the volume occupied by iron chips during chip processing.

3. The horizontal double-roll chip shredder can make the drying, briquetting, smelting, crushing, pre-treatment and transportation of chemical fireproof materials simple and easy.

4. It has the advantages of large crushing ratio, high production efficiency, small discharge particle size, etc.

5. The machine drive device is equipped with safe electrical protection, which can effectively prevent accidental failures from causing equipment damage.

6. Chips can be fed continuously or intermittently.

7. The use of horizontal chip crusher facilitates the subsequent processing of chips, effectively reduces the volume of chips and saves storage space.


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