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Copious cooling pulverizer and working method thereof

A pulverizer and cryogenic technology, applied in the field of low-temperature crushing, can solve problems such as the inability to guarantee low energy consumption operation, the inability to ensure the economical recycling of liquid nitrogen, and the inability to guarantee the brittleness of materials, so as to facilitate collection, reduce energy consumption, and reduce energy consumption Effect

Inactive Publication Date: 2016-11-16
菏泽市花王高压容器有限公司
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AI Technical Summary

Problems solved by technology

[0006] However, none of the above technical solutions provides complete technical considerations on whether the cryogenic cooling of materials by liquid nitrogen is sufficient and the safe recycling of liquid nitrogen. It cannot guarantee that the deep cooling of materials can achieve the best brittleness, nor can it guarantee the liquid nitrogen of the entire crushing system. The economic cycle use, can not guarantee low energy consumption operation

Method used

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  • Copious cooling pulverizer and working method thereof
  • Copious cooling pulverizer and working method thereof
  • Copious cooling pulverizer and working method thereof

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with accompanying drawing of description and specific embodiment:

[0055] Such as figure 1 , a cryogenic pulverizer, comprising a motor 1, a hopper 44, a material precooling chamber 2, a material freezing chamber 15, a cryogenic mill 6, an induced draft fan 7, a cyclone separator 7, a bag filter 3, a liquid nitrogen tank 4 and compressor 23;

[0056] A sieve 10 is set in the middle of the material pre-cooling chamber 2, and the sieve 10 divides the material pre-cooling chamber 2 into an upper cavity and a lower cavity. The rotating shafts are connected, and the cooling blind hole 12 along the axial direction is arranged in the screw shaft 11;

[0057] The closed end of the cooling blind hole 12 is provided with a nitrogen nozzle 29 embedded in the screw shaft 11. The nitrogen nozzle 29 communicates with the cooling blind hole 12 through the nitrogen nozzle installation hole 30, and the other end of ...

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Abstract

The invention relates to a cryogenic pulverizer and its working method, comprising a motor, a hopper, a material pre-cooling room, a material freezing room, a low-temperature mill, an induced draft fan, a cyclone separator, a bag filter, a liquid nitrogen tank and a compressor. Machine, the cryogenic pulverizer of the present invention and its working method, use liquid nitrogen to cool and freeze the material to be pulverized so as to achieve the brittleness required for the pulverization of the material, rich in resources and easy to separate, colorless, odorless and non-toxic gas, to avoid In addition, nitrogen is also a good anti-oxidant, which can prevent the finished powder material from being oxidized and deteriorated, and realize the recycling of nitrogen. In addition, the cooling capacity of the finished powder material is fully utilized to reduce energy consumption. save resources.

Description

technical field [0001] The invention relates to a cryogenic pulverizer and its working method, in particular to a cryogenic pulverizer which uses liquid nitrogen refrigeration to pulverize heat-sensitive materials or materials with strong toughness at normal temperature in an ultra-low temperature environment. A pulverizer and a working method thereof belong to the technical field of low-temperature pulverization. Background technique [0002] Low-temperature pulverization refers to the process of crushing the material cooled to the brittle point temperature into smaller particles or powders under the action of external force. The low-temperature pulverization technology can ensure that the pulverized substances, such as natural products, are not damaged during the pulverization process. [0003] For heat-sensitive materials or materials with strong toughness at room temperature, when the temperature drops to a certain temperature, the brittleness of the material will incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C19/18
CPCB02C19/186
Inventor 陈磊徐飞杨圣林付奇标杜燕芳许景超孙同强侯红春
Owner 菏泽市花王高压容器有限公司
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