Method of raising crushing efficiency of mechanical impact crusher

A technology of mechanical impact and crushing efficiency, applied in the direction of grain processing, etc., can solve the problems of reduced mechanical crushing efficiency and increased energy consumption, and achieves the effects of improved recovery rate, easy crushing, and reduced investment

Inactive Publication Date: 2003-01-01
马龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical impact pulverizers can usually only crush solid material particles to a size of 10 microns. As the solid material particles become smaller, due to the blocking and separation of solid particles by atmospheric pressure, the air film between the solid particles produces The lubricating and buffering effect, as well as the air resistance effect when the solid particles are moving, cause the efficiency of mechanical crushing to decrease rapidly and the energy consumption to increase sharply. When the mechanical impact crusher cr

Method used

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Examples

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Example Embodiment

[0009] The method for improving the pulverizing efficiency of the mechanical impact pulverizer of the present invention is to seal the pulverizing chamber of the mechanical impact pulverizer, and use the exhaust device to evacuate the pulverizing chamber of the mechanical impact pulverizer, so that the pulverizing chamber is in a vacuum state , the exhaust device is arranged on the discharge pipeline, the absolute atmospheric pressure in the crushing chamber is less than 0.07MPa, and the granular material is transported to the crushing chamber by a screw conveying device for crushing, and the diameter of the granular material is less than 5mm .

[0010] The absolute atmospheric pressure in the pulverizing chamber may also be 0.05-0.001 MPa.

[0011] The absolute atmospheric pressure in the crushing chamber can also be 0.02-0.004MPa.

[0012] As we all know, a stone can be thrown far away by us, but a bag of dust of the same mass is difficult to be thrown very far. This is cau...

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Abstract

The method of raising crushing efficiency of mechanical impact crusher is to seal the crushing chamber of mechanical impact crusher and to pump out partial air from the crushing chamber to air pressure lower than 0.07 MPa. The method can avoid the floating motion of the material particles and the linear motion of material particles increases the friction and crushing of material particles. The said method results in high crushing efficiency, low power consumption and high material recovering rate.

Description

technical field [0001] The invention relates to a method for improving the pulverization efficiency of a mechanical impact pulverizer. Background technique [0002] The mechanical impact pulverizer uses the impact elements (rods, blades, hammers, etc.) on the high-speed rotor around the horizontal or vertical axis to exert a strong impact on the material, and generate high-frequency vibration between it and the stator and between the materials. Equipment that is crushed by strong impact, shearing, etc. Mechanical impact pulverizers can usually only crush solid material particles to a size of 10 microns. As the solid material particles become smaller, due to the blocking and separation of solid particles by atmospheric pressure, the air film between the solid particles produces The lubricating and buffering effect, as well as the air resistance effect when the solid particles are moving, cause the efficiency of mechanical crushing to decrease rapidly and the energy consumpti...

Claims

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Application Information

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IPC IPC(8): B02C13/26B02C13/288
Inventor 马龙
Owner 马龙
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