Crushing is an important link in the field of industrial mineral processing with the rapid development of the present age. Sizers crusher is a kind of equipment widely used in mining machinery. In all kinds of metal, non-metal, chemical, building materials, electric power and other industrial sectors occupy a very important position. From the economic point of view, in the concentrator, crushing and grinding production costs account for more than 40% of the total processing costs and equipment investment accounts for about 60% of the total investment. 1. Sizers Crusher before 1990
Before the 1990s, the technology of Sizers Crusher has defects such as being not controlling the particle size of crushed products, crushed products over crushing amount, the large impact load of the body , easy damage to the broken teeth, large noise ,large maintenance procedure and other shortcomings. In order to prevent the material from the miscellaneous wood, iron, waste rock, rock hard materials to damage the broken teeth, in single toothed roll crusher crushing plate bottom is equipped with tension spring, a double toothed roll crusher broken with compression spring on both ends of the roller. The purpose is to increase the force of the crushing plate or the roller when the crushing cavity of the bulk material or the hard material can not be broken. Thus the compression spring increases the discharge gap of the crushing chamber in order to discharge hard objects. Then the restoring force of the spring makes the movable crushing plate or tooth roller return to the original position. Therefore it cannot strictly control the particle size of the broken products.
2. Sizers Crusher after 1990
During the 1990s, with the increase of China's reform and opening up, the coal sales market has also undergone great changes. People put forward higher requirements to coal preparation technology and equipment. It includes the reduction of fine particle content, the uniformity of product particle size, the reduction of over-limit particle size, and the increase of processing capacity, which promotes the development and progress of crusher technology. Firstly, 2PL series strong crusher is developed. The technical progress of the crusher is mainly the cancellation of the original double roll crusher yield spring safety device, the double crushing roller fixed, crushing tooth using new technology and materials to prevent the damage of hard crushing tooth, so as to strictly control the large particles in the broken products.
Above we have briefly introduced the development of the sizers crusher. The HENAN EXCELLENT MACHINERY CO.,LTD is a professional bulk material conveying equipment manufacturer. We have professional production capacity and rich production experience as well as strict product quality inspection . We can guarantee that every equipment we produced is qualified equipment, and we ensure the qualified rate of the products. To know more about our products, Please visit our official website: https://www.exctmach.com/.