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Method and device for crushing low-temperature materials

A material and low temperature technology, applied in the field of low temperature material crushing process method and equipment structure, can solve the problem of not being able to fully reduce the temperature of crushed materials, and achieve the effects of avoiding melting and softening, eliminating heat accumulation, and reducing surface temperature.

Active Publication Date: 2015-07-01
卢小平 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the deficiency that the water cooling method in the existing material crushing process cannot sufficiently reduce the temperature of the crushed material, and to provide a low-temperature material crushing process that completely abandons the traditional water cooling method and adopts a brand new cooling method , effectively eliminate the accumulation of heat during the crushing process, avoid the occurrence of material melting, softening, denaturation and agglomeration, so as to meet the crushing requirements of low-temperature materials with high mesh number and fine particle size

Method used

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  • Method and device for crushing low-temperature materials
  • Method and device for crushing low-temperature materials
  • Method and device for crushing low-temperature materials

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Embodiment 1

[0069] Please refer to image 3 , 4 And the structural representation of 5 embodiment one. The low-temperature material crushing structure described in Embodiment 1 is set on the material crushing equipment to carry out low-temperature material crushing. The low-temperature material crushing structure shown in the figure includes a cutter capable of crushing materials and an air flow channel capable of introducing air flow. The knives are two crushing knives capable of relative movement, which include a fixed fixed knife and a rotatable moving knife. There is a gap between the moving knife and the fixed knife, and the material is crushed in the gap, so the gap Also called "crushing chamber", the working surface of the moving knife is parallel to the working surface of the fixed knife. The air flow channel is arranged on the crushing blades and communicates with the gap between the two crushing blades. like image 3 As shown, the shape of the crushing knife is disc, conical...

Embodiment 2

[0076] Please refer to Image 6 , 7 And the structural representation of the second embodiment of 8. The low-temperature material crushing structure described in Embodiment 2 is set on the material crushing equipment to carry out low-temperature material crushing. The low-temperature material crushing structure shown in the figure includes a knife capable of crushing materials and an air flow channel capable of introducing air flow. The knives are two crushing knives capable of relative movement, which include a fixed fixed knife and a rotatable moving knife. There is a gap between the moving knife and the fixed knife, and materials are crushed in the gap. The working face of knife is parallel with the working face of fixed knife. The air flow channel is arranged on the crushing blades and communicates with the gap between the two crushing blades. like Image 6 As shown, the shape of the crushing knife is disc, conical or cylindrical, and the present embodiment is disc-sha...

Embodiment 3

[0081] see Figure 9 Schematic diagram of the structure of the third embodiment. The low-temperature material crushing structure described in Embodiment 3 is set on the material crushing equipment to carry out low-temperature material crushing. The low-temperature material crushing structure shown in the figure includes a knife capable of crushing materials and an air flow channel capable of introducing air flow. The knives are two crushing knives capable of relative movement, which include a fixed fixed knife and a rotatable moving knife. There is a gap between the moving knife and the fixed knife, and materials are crushed in the gap. The working face of knife is parallel with the working face of fixed knife. The air flow channel is arranged on the crushing blades and communicates with the gap between the two crushing blades. like Figure 9 As shown, the shape of the crushing knife is disc, conical or cylindrical, and the present embodiment is disc-shaped. The pulverizer...

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Abstract

A process for crushing a low-temperature material comprises the following steps: a material entering a gap between two crushing knives; injecting an air current through an air current passage to the work surface of the crushing knives and the surface of the material at an injection angle (a), and filling the gap with the air current to form an injected air curtain layer; the two crushing knives performing relative movement and crushing the material in the injected air curtain layer; and discharging the crushed material out of the gap with the air current. The process is performed by using a device for crushing a material. The device comprises two crushing knives capable of performing relative movement and an air current passage communicating with a gap between the two crushing knives. In the process, a method for direct cooling with an air current is adopted, thereby effectively eliminating the aggregation of crush heat and static electricity generated by friction, avoiding melting, softening, denaturation and agglomeration of the material, and meeting the requirements of the high mesh number and fine granularity in crushing the low-temperature material; therefore, the process has the advantages such as a high yield, low energy consumption, and high efficiency and can be used to crush the low-temperature materials, such as rubber, silica gel, plastic, protein powder, and Chinese medicinal herbs, with a low melting temperature.

Description

technical field [0001] The invention relates to a material crushing method and equipment thereof, in particular to a process method and equipment structure for low-temperature material crushing, belonging to the technical field of material crushing and grinding. Background technique [0002] In order to reuse waste materials, people usually crush and grind waste materials into particles or powders of various sizes, and then put them into production as recycled raw materials, such as plastics and rubber. The crushing or grinding of materials generally adopts grinders specialized in processing recycled materials, such as: 280 plate grinder is a kind of material grinding machine with double discs, which can process waste materials into 40-120 mesh (0.38-0.12mm) at room temperature ) Fine rubber powder. As another example, the conical grinding head material pulverizer is a recycling material crushing equipment whose grinding head is a cone. Existing grinding machines are usual...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C18/14B02C18/16B02C18/18
CPCB02C7/17
Inventor 卢小平程立平
Owner 卢小平