Closed loop balance wheel pulse sand making machine and sand making method

Abstract

The invention provides a closed loop balance wheel pulse sand making machine and a sand making method. A built-in screen cloth barrel is installed, a side-surface aggregate bin is arranged, two direct-connection and side surface airflows of a pulse fan are used for discharging finished product sand so as to avoid overgrinding, and pulverized particles are controlled. The grinding pressure and the pulverization granularity are regulated by a regulation pressure support frame, a grinder roll spring and a grinder roll spacing device. The dry sand making of mountain rock crushed aggregates and the water-flushing wet type sand making of river sand mud crushed aggregates can be realized by the arrangement of a drop guide and a bottom screen cloth. The practical model machine operation effects are as follows: the size of the feeding crushed aggregates is 10-30mm, the finished product sands of superfine sand, fine sand, medium sand and coarse sand can be generated, and the particle range of the finished product is 0.1-6mm.

Description

technical field [0001] The invention relates to the field of crushing machinery, in particular to a closed-circuit balance wheel pulse sand making machine. Background technique [0002] Among the crushing machines, the commonly used ones are Raymond Mill, Hammer Crusher and Vertical Crusher. Raymond mill is widely used in milling non-flammable and explosive minerals, chemicals, building materials and other non-flammable and explosive powders with Mohs hardness not greater than 7 and humidity below 6%. It mainly uses air separation to produce materials. The particle size of the product is between 30 mesh and 325 mesh, and the particle size of the feed is controlled at no more than 20MM. The products produced by hammer and vertical crushers have large particles, and most of the crushing power energy is consumed by the friction between the hammer head and the material, and the hammer head is severely worn, and the material is excessively crushed. [0003] In the processing of...

AI Technical Summary

Problems solved by technology

Therefore, the artificial machine-made sand production line of the external circuit crushing system has the disadvantages of large floor area, low efficiency of sand making system, stone material turnover and long production route.

[0006] The existing impact crushers, impact crushers, straight-through sand making machines, hammer crushers and other crushing machines in the market use the principle of stone-on-rock or stone-on-iron crushing. In order to make materials obtain very large kinetic energy and impact crushing force , requires the impeller or hammer head to use high-speed movement, resulting in huge wear and tear of the crushing working parts

Images