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Closed air-cooled brace pelletizing system

A closed, air-cooled technology, used in the field of plastic processing, can solve the problems of easy loss of activity and achieve the effects of preventing pollution, shortening length and preventing deactivation

Active Publication Date: 2021-09-21
HANGZHOU REJOIN MASTIN MEDICAL INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the technical problem that the existing high-activity particles are easy to lose activity during the pelletizing process, the present invention provides a closed air-cooled strand pelletizing system, which can process the high-temperature melt without contacting the material. Pre-cooling, in the process of sliver pelletizing, the air is completely isolated to prevent the deactivation of active materials

Method used

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Embodiment Construction

[0024] In order to further understand the content of the present invention, in conjunction with the attached figure 1 And embodiment describe the present invention in detail.

[0025] combined with figure 1 , a closed air-cooled strand pelletizing system in this embodiment includes a sealed bin 1 through which low-temperature high-purity nitrogen flows. The sealed bin 1 is provided with at least one nitrogen gas inlet valve 8. The sealed bin 1 1 is provided with a pressure relief valve, the pressure in the sealed chamber 1 is 0.1-0.3Mpa; the mouth die 2 communicates with the sealed chamber 1 and is installed on the left side of the sealed chamber 1; the low-temperature jacket 3 is connected to the mouth die 2 Connected, there is a low-temperature liquid flowing inside, and the material passes through the low-temperature jacket 3 and enters the die 2 to cut strips; the pelletizer 4, the feed port of the pelletizer 4 is arranged in the sealed chamber 1; The conveying device 5 ...

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Abstract

The invention discloses a closed air-cooled brace pelletizing system. The closed air-cooled brace pelletizing system comprises a sealed bin, wherein low-temperature high-purity nitrogen flows through the sealed bin; a mouth mold, which is communicated with the sealing bin; a low-temperature jacket, which is communicated with the mouth mold, wherein low-temperature liquid flows through the low-temperature jacket; and a pelletizer, wherein a feeding hole of the pelletizer is formed in the sealing bin; and the closed air-cooled brace pelletizing system further comprises a conveying device arranged in the sealing bin, and the conveying device is used for conveying materials passing through the mouth mold into the pelletizer. Aiming at the technical problem that high-activity particles are prone to losing activity in the pelletizing process in the prior art, the invention provides the closed air-cooled brace pelletizing system which can precool a high-temperature melt under the condition of not contacting the materials, and can completely isolate air and prevent the active materials from being inactivated in the brace pelletizing process.

Description

technical field [0001] The invention relates to the technical field of plastic processing, in particular to a closed air-cooled strand pelletizing system. Background technique [0002] At present, the air-cooled strand pelletizing system sold on the market uses air at room temperature for cooling, the cooling time is relatively long, the length of the conveyor belt needs to be 10-20 meters, and the air in the rainy season still contains a lot of water vapor , Pelletizing in this environment will lead to inactivation and unusable for some materials containing highly active particles used in medical treatment. [0003] For example, a cold pelletizing system with the publication number CN108748772A uses liquid nitrogen to directly contact the material to cool it suddenly and pelletize it. This method will lead to severe shrinkage of the material, cracks on the surface of the material, resulting in unqualified appearance, and the loss of activity of the highly active particles ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B9/06B29C48/885B29C48/04
CPCB29B9/06B29C48/885B29C48/04B29C48/0022B29C48/911
Inventor 蒋冠森李凌晨吴侃李若云
Owner HANGZHOU REJOIN MASTIN MEDICAL INSTR CO LTD
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