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The scrap crusher is a crushing machine used to produce scrap steel scraps. It is mainly used to scrap cars, scrap home appliances and thin scrap steel machines. The main body casing is made of extra-thick steel plate and the inner lining is made of high manganese steel. It can be replaced. Fracture Interpretation Scrap Shredder (fei gang po sui ji) English Scrap Shredder scrap crusher is a crushing machine used to produce scrap crushing materials. It is mainly used for scrapping cars, scrapped home appliances and thin scrap steel. The scrap steel after the crushing treatment of the scrap crusher has the following characteristics: 1. The material shape is neat and the specifications are similar; 2. The pile weight is higher; 3. The deposit is less; 4. The purity is higher. Steel smelting is carried out using broken steel.

Has the following advantages:

1. High yield;

2. The chemical composition of molten steel is stable and the content of sulfur and phosphorus is low;

3. The smelting cycle is shortened;

4. The life of the lining of the furnace is prolonged;

5. Air pollution and slag reduction;

6. The power consumption per ton of molten steel is reduced.

Energy Needs The effective recycling of scrap metal resources can greatly reduce the exploitation of natural mineral resources, reduce the land occupation, reduce the total energy consumption of the society, save investment, protect the ecological environment, and improve the efficiency of labor production. Especially in today's natural mineral resources are extremely depleted and increasingly scarce, scrap metal resources are in the world economy. The status in the sustainable development strategy is becoming more prominent. Since 2000, all countries in the world have been actively and effectively recycling scrap metal resources to appropriately curb the long-term transition costs of mineral resources and energy. Scrap steel is the only raw material that can replace iron ore in steel production. Maximizing the development and application of scrap steel resources is an important way for the steel industry to achieve energy conservation and emission reduction, clean production, circular economy and alleviate the crisis of iron ore resources. China's scrap recycling rate in 2012 was 19.9%, far below the world average of 48.3%. The trend of the development of the national scrap steel processing industry is to take the scrap crushing and sorting treatment as the leader, and use the high-tech such as environmental protection and mechatronics to develop a new comprehensive treatment technology for scrap steel, which can form an environmental protection industry and a new economic growth point. Scrap crusher plays a vital role in the recycling of scrap resources and has a good application prospect. Development situation Foreign development situation Foreign scrap crusher manufacturing enterprises mainly include Newell Company of the United States, Lindemann Company of Germany, and Fuji Vehicle Club of Japan. From the perspective of production scale and technological advancement, Newell and Lindemann have a brief introduction from the aspects of structural characteristics and technical performance. NewMl is the largest scrap crusher manufacturer in the United States. It first introduced the SHD scrap crusher in the 1960s.

The structural characteristics of the SHD crusher are as follows:

1) The main body shell is made of extra-thick steel plate, and the inner lining is made of high-manganese steel casting, which can be replaced;

2) The main rotor has 11 steel discs mounted on the horizontal axis, 6 pin shafts distributed around the circumference of the steel disc, and 10 hammer heads suspended in the axial direction;

3) The main shaft is supported by ball bearings, the circulating oil is forcibly lubricated and cooled, and a temperature sensor is installed;

4) The feeding port is equipped with a super-strong double-cylinder feeding device. The position is high, low and low, and rotates in the same direction. The large loose material can be gradually flattened and sent into the machine. The speed of the drum determines the feed speed. It is controlled by the load current feedback of the main motor to achieve automatic adjustment to ensure that the main engine is in optimal load.

5) After the unbreakable material enters the machine body, the operator can open the discharge door and discharge it to the machine body to avoid damage to the crusher. Lindemann is a rising star in the scrap crusher production industry. It was originally licensed by Newell Corporation of the United States to cooperate with the production of scrap crushers. Lindemann introduced a new type of scrap crusher, the ZK crusher, in the late 1920s for the damage to the crusher itself or to the conveyors behind it due to the large heavy components in the scrap. The characteristics of this model are: the rotating grille is suspended on the upper left side of the body and can be opened to the rear; the movable anvil is arranged on the lower left side, and the gap between the rotor hammer and the anvil can be adjusted to obtain the crushed steel sheet of the expected size. The rotating grid plays the dual role of sieving and discharging the unbreakable material; the rotation direction of the rotor is consistent with the feeding direction, and after the material enters the crusher, it is first kept above the crushing chamber; the crushable material enters the rotor and the anvil. After being broken and torn into small pieces, the unbreakable heavy scrap will hit the movable grille under the drive of the rotor, causing it to rotate backwards, thus leaving the crusher. China's development situation 2.2 Domestic development With the market demand for recycling of scrap resources, domestic demand for scrap crushers has gradually increased.

Application In the 21st century, China's steel industry has entered a period of rapid development. In 1996, the national steel output exceeded 100 million tons for the first time. In 2003, it doubled to 200 million tons. In 2005, it exceeded 300 million tons. In 2008, it climbed 500 million tons, ranking first in the world. The rapid development of the market has also led to a significant increase in demand for scrap steel raw materials. According to statistics, the annual domestic scrap steel application volume increased from 29 million tons to 72 million tons during the period from 2000 to 2008, an increase of 147%, with an average annual increase of 5.35 million tons. In 2008, the country consumed 72 million tons of scrap steel, which has become the world's largest market for scrap steel demand. Scrap processing equipment has evolved with the development of the steel industry. The demand for fine steelmaking furnace materials has promoted the production and development of various processing equipment. Advanced processing equipment has produced high-quality scrap steel, which has also promoted the development of the steel industry. Continuous casting and continuous short-flow new processes are widely used, especially electric furnaces. The rapid rise of steel has placed strict demands on the quality of scrap steel. With the development of the national economy and the improvement of people's living standards, the number of mechanical equipment, automobiles, household appliances, etc. has increased not only, but also the renewal cycle has been shortened, and the proportion of recycled scrap steel from society has increased. The waste steel scrap collected by the society is complex, and there are many impurities such as non-ferrous metals, non-metals and garbage. This puts new requirements on us, that is, scrap processing equipment must meet the new requirements in the new situation. First, the application status of scrap crushing production line in China Before the 1990s, China generally used metal balers, crocodile shears and other equipment to process scrap steel. Because there is no sorting and purification equipment, it can not meet the "fine scrap" and "fine materials." Production needs of “into the furnace”, “energy saving and emission reduction” and “green steel”. With the reform and deepening of China's scrap supply and demand mechanism, the old model of “small but complete” of “self-recycling, self-purchasing, and self-application” has been gradually broken. A group of specialized scrap processing and distribution companies are emerging, with more than 15 annual distribution capacity of more than 200,000 tons. These scrap steel processing plants are equipped with the world's advanced scrap crushing production line and supporting equipment, covering an area of ​​      50-1000 mu and a large scale. After the scrap steel is purchased into the factory, it is mechanized sorting, dismantling, processing and purification according to the specifications. It produces all kinds of scrap steel raw materials and distributes them to the steelmaking mill for steelmaking. The quality of scrap products is gradually improved. The crushing process separates the inclusions of the scrap and removes the adherent to produce pure high-quality scrap. It is especially suitable for the processing of scrap steel and home appliances such as scrap cars and home appliances. The scrap crushing line has complicated manufacturing technology and high production cost. However, due to its advanced technology, large processing range and high productivity, it can sort out non-ferrous metals, remove metal impurities, and process high-quality scrap with high purity. It has less environmental pollution and is an ideal scrap processing equipment. It is known as the most advanced scrap processing equipment. At present, only a few companies in China have the relevant set of process technology strengths, making an immortal contribution to the recycling and recycling of China's scrap resources!

Working principle Scrap crushing process uses the crusher to crush the scrap steel, and uses the sorting system to sort the crushed scrap to obtain the pure high-quality scrap steel processing method. The working principle is that under the continuous drive of the high-speed, high-torque motor, the hammer on the rotor of the crusher alternately hits the scrap into the cavity. Under the strong impact, the scrap is torn and extruded into a certain size. Steel, after processing by sorting equipment, can obtain high quality broken steel with high purity.

 The scrap steel treated by the crusher has the following characteristics:

1. The shape of the material is neat and the specifications are similar;

2, there is a higher heap weight;

3. Less attachments;

4. High purity.

The use of broken steel for steel smelting has the following advantages:

1. High yield;

2. The chemical composition of molten steel is stable and the content of sulfur and phosphorus is low;

3. The smelting cycle is shortened;

4. The life of the lining of the furnace is prolonged;

5. Air pollution and slag reduction;

6. The power consumption per ton of molten steel is reduced.

For scrap recycling companies, the advantages of using scrapers for scrap steel processing and recycling are:

1. Expanded the scope of processing and recycling;

2. High value space;

3. Convenient and efficient transportation.

Although the scrap processing equipment has one manufacturer, the basic equipment generally has:

1. Feeding slat conveyor;

2, double roller compactor;

3. Crusher;

4. Vibrating conveyor;

5, magnetic separator;

6. Discharge belt conveyor. In addition, there is a need for non-ferrous metal sorting, with a color metal sorting machine; if it needs wind sorting, it can be installed with a wind selection system; it needs dust removal, with a dust removal system. In 2013, more than 20 scrap crushing production lines were operating in China.

Technical perfection In order to better meet the needs of market development, the manufacture of scrap crusher should accelerate the development of the following aspects:

1. Non-ferrous metal sorting. With the increase in scrapped cars and old home appliances, the selection of non-ferrous metals by manual selection will not be able to adapt to the expansion of production scale. This kind of processing equipment is mainly imported, which is one aspect; in addition, how to cooperate with the operation of scrap crusher and the classification requirements of sorting specifications, etc., needs to be refined.

2. Wind sorting. Scrap cars, old rubber appliances, plastics, foam, etc., with the increase of such materials, how to sort out more effectively, the use of "Z" box for wind sorting abroad, the effect is obvious, but the country still It is blank.

3. Large size. With the improvement of the scrap processing and distribution system, the supply of scrap steel will meet the needs of the centralized production mode. The downtime of large crushers will be avoided and the utilization rate will increase, so the market demand will expand.

4. Factory building. With the tightening of land resources and the requirements of environmental protection in China, the requirements for scrap processing and recycling enterprises will be higher and higher. In Japan, all the scrap crushing production lines are housed in the factory building, and the three-dimensional development. A 1000-2000 hp production line has a plant area of ​​less than 5,000 square meters, and the noise problem has also been solved. This is a new trend in development.

The development prospect of scrap crusher is the 80 energy saving and emission reduction project that the national key solution and strong support. The scrap crusher is the key equipment for scrap steel processing. With the increasing scrap steel resources, the scrap crusher has a good application prospect. . This machine is supplied by the manufacturing factory and is supplied in a set. When the user receives the equipment, the machine is inspected to eliminate the disadvantages that may occur during transportation.

1. Since the vibration of this machine is large, it is recommended that the machine be installed on the concrete foundation. In order to reduce vibration, noise and vibration, so as not to affect the vibration of the building, it is better to use the crusher and concrete. The base intermediate pad is made of hardwood backing, rubber band or other cushioning material.

2. The weight of the foundation can be roughly 5-10 times of the weight of the machine. The depth of the foundation is greater than the depth of freezing of the land. For the installation of the machine and the position of the screw of this foot, refer to the foundation diagram.

3. Before adjusting the discharge opening, first loosen the tension spring. After adjustment, adjust the tension of the spring to prevent the bracket from falling off during work.