Millstone crusher

Abstract

The invention discloses a millstone crusher which comprises a lower bracket, a lower millstone crushing device, an upper millstone crushing device, an upper bracket and a driving device, wherein the lower millstone crushing device is arranged on the lower bracket, the upper millstone crushing device is arranged on the upper bracket and suspended above the lower millstone crushing device, and the driving device respectively drives the lower millstone crushing device and the upper millstone crushing device to rotate in opposite directions. By using the millstone crusher disclosed by the invention, materials required to be crushed enters a space between a crushing wall of an upper conical cover and a crushing wall of a lower conical cover from a material pipe, the rotation directions of the upper conical cover and the lower conical cover are opposite, the crushing wall of the upper conical cover and the crushing wall of the lower conical cover grind materials required to be crushed into particles with relatively smaller particle size and diameter, so that the yield is not required to be reduced or no fine crusher is required to be arranged, and the crushing process is simple; and according to the invention, the millstone crusher is adopted for crushing materials, the grinding strength is large, and the power of a motor is 82 KW in total, so that compared with at least 120 KW as the power of a motor of an existing hammer crusher, the power consumption is greatly reduced, and a lot of electric energy is saved, therefore, the millstone crusher is low-carbon and environment-friendly.

Description

technical field [0001] The invention relates to a crushing device, in particular to a disc crusher. Background technique [0002] Hammer crusher is a kind of crushing equipment with a long history of application and a wide range of applications. It is mainly used in medium and fine crushing operations. The main industries used are thermal power plants, mines, chemicals, building materials, etc. Its structure and The working principle is: after the material to be crushed enters from the feeding port, it is crushed by the impact of the high-speed rotating hammer head. There is a sieve plate under the hammer crusher, and the material particles smaller than the sieve fall into the lower part, and the material particles larger than the sieve The particles remain in the machine and continue to be crushed. The existing hammer crusher has the following disadvantages: [0003] 1. The particle size of the existing hammer crusher is large and the crushing ratio is small. If it needs t...

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Problems solved by technology

[0003] 1. The particle size of the existing hammer crusher is large and the crushing ratio is small. If it needs to be crushed into a product with a small particle size, the output of the hammer crusher can only be reduced or a fine crusher can be equipped for fine crushing. , the crushing process is complex

[0004] 2. The existing hammer-type crushing equipment needs to use a motor of at least 120KW to drive the hammer to work. If it needs to be crushed into products with smaller particle sizes, the crushing time must be increased, resulting in a sharp increase in power consumption of the crusher and a large waste of electric energy.

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