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System and method for deeply removing VOC from polypropylene material and drying polypropylene material

A polypropylene and material technology, which is applied in the field of optimized treatment of polypropylene materials, can solve the problems of high VOC content, inability to produce medical masks, and high odor of polypropylene meltblown materials.

Pending Publication Date: 2020-10-20
TIANHUA INST OF CHEM MACHINERY & AUTOMATION +1
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Problems solved by technology

[0002] Polypropylene melt-blown special materials Due to various factors such as catalyst residues, additive decomposition, and resin degradation in the production process of polypropylene melt-blown special materials, polypropylene melt-blown materials have a large odor and high VOC content, which is different from There is still a certain gap compared with imported raw materials, which cannot be directly used in the production of medical masks

Method used

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  • System and method for deeply removing VOC from polypropylene material and drying polypropylene material
  • System and method for deeply removing VOC from polypropylene material and drying polypropylene material
  • System and method for deeply removing VOC from polypropylene material and drying polypropylene material

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Embodiment Construction

[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The present invention may reuse element symbols and / or letters in various embodiments. This repetition is for simplicity and clarity, and does not in itself dictate the relationship between the various embodiments and / or configurations discussed.

[0069] Please refer to figure 1 with figure 2 , figure 1 It is the structural representation of the system for removing VOC and drying of the polypropylene material of this embodiment, figure 2 It is a schematic structural diagram of the product chamber part of this embodiment of the present invention. This embodiment uses low-pressure saturated stea...

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Abstract

The invention relates to a system for deeply removing VOC from a polypropylene material and drying the polypropylene material. The system comprises a raw material tank for placing a polypropylene material to be treated; a steam reactor, which comprises an inner shell and an outer shell, wherein a space between the inner shell and the outer shell is an interlayer, a space in the inner shell is an inner container, the inner shell is provided with a material inlet / outlet, a condensate outlet and a vacuum interface, the outer shell is provided with a heating medium inlet / outlet, the material inlet / outlet is communicated with the raw material tank through a feeding pipeline, and the heating medium inlet / outlet is communicated with a steam pipeline; a condensate tank, which is communicated withthe condensate outlet of the steaming reactor through a condensate pipeline; a vacuum pump, which is communicated with the vacuum interface of the steam reactor through a vacuum pipeline, wherein thevacuum interface is also communicated with the steam pipeline; and a product bin, which is used for placing the treated polypropylene material. The invention also relates to a method for deeply removing VOC from a polypropylene material and drying the polypropylene material.

Description

technical field [0001] The invention relates to the optimized treatment of polypropylene materials, in particular to a system and method for deep removal of VOC and drying of polypropylene materials, especially a system and method for deep removal of VOC and drying of special polypropylene melt-blown materials. Background technique [0002] Polypropylene melt-blown special materials Due to various factors such as catalyst residues, additive decomposition, and resin degradation in the production process of polypropylene melt-blown special materials, polypropylene melt-blown materials have a large odor and high VOC content, which is different from Compared with imported raw materials, there is still a certain gap, and they cannot be directly used in the production of medical masks. [0003] In the face of the shortage of medical supplies due to the global epidemic, the VOC release of special melt-blown materials has become one of the urgent problems to be solved. Contents of...

Claims

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Application Information

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IPC IPC(8): B01J8/02B29B13/06
CPCB01J8/02B01J8/0285B29B13/065B01J2208/00212B01J2208/00371B01J2208/00539B01J2208/023Y02A50/20
Inventor 赵旭周姣龙高妍赵泽昊窦岩唐勇海刚孙秀丽王辛幸周涛张睿曹善甫徐瑞谢晓玲沈延顺张隽爽贾敏
Owner TIANHUA INST OF CHEM MACHINERY & AUTOMATION
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