Method for treating waste gas in preparation process of composite fiber sealing material

A technology of sealing materials and composite fibers, which is applied in the field of pulp and paper making or the environment, can solve problems such as complex exhaust gas components, and achieve the effect of reducing the processing load and fully collecting

Active Publication Date: 2018-03-23
中轻(晋江)卫生用品研究有限公司
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  • Abstract
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Problems solved by technology

[0011] Aiming at the problems that the composite sealing material based on the principle of close packing makes the waste gas composition complex in the production process of the sealing material, and the high odor concentration restricts the normal production of the product, the present

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  • Method for treating waste gas in preparation process of composite fiber sealing material
  • Method for treating waste gas in preparation process of composite fiber sealing material

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Embodiment

[0022] The waste gas during the preparation of composite fiber sealing materials is effectively treated by the following methods, and the by-products are reused:

[0023](1) Collection of waste gas: Since waste gas is generated during the entire curing process of composite fiber sealing materials, which is dispersed in the entire workshop, the waste gas must be effectively collected before processing the waste gas to avoid its arbitrary diffusion, which is generated by machines in the workshop. Add a closed system to the part of the exhaust gas, install the corresponding pipeline, and use the fan to extract the exhaust gas. The negative pressure at the top of the workshop is 90kPa; In the upper air, the wind pressure is 50kPa, so that a certain negative pressure is generated in the workshop to ensure that the exhaust gas in the workshop will not diffuse outward, and the exhaust gas can be fully collected;

[0024] (2) Pretreatment of exhaust gas: the initial temperature of exh...

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Abstract

The invention relates to a method for treating a waste gas in a preparation process of a composite fiber sealing material, and belongs to the field of pulping and papermaking or environments. The method specifically comprises the following steps: collecting, cooling, classifying and absorbing, and catalytically oxidizing the waste gas in the production process of the composite sealing material toachieve effective control and standard treatment of the waste gas. The method provided by the invention has the advantages that the waste gas is classified and treated step by step in the preparationprocess of the composite fiber sealing material to achieve the purification of the waste gas; meanwhile, by-products generated in the purification process can be reused in the preparation process of the composite fiber sealing material without secondary waste generation.

Description

technical field [0001] The invention relates to a method for treating waste gas in the preparation process of composite fiber sealing materials, belonging to the field of pulping and papermaking or the environment. Background technique [0002] Fiber composite sealing materials are mainly used to manufacture various sealing gaskets, which are widely used in the sealing of various vehicles, mechanical equipment and various pipeline joints. plays a key role. Fiber sealing materials include asbestos fiber products and asbestos-free fiber products. With the development of science, the hazard of asbestos fibers to human health has gradually been widely recognized, asbestos products have been gradually replaced, and non-asbestosization has become a trend. [0003] Under a certain medium and medium pressure, the penetration rate of fluid medium through the cross section of the sealing material is mainly determined by the porosity inside the material and the size of the effective ...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/52B01D53/58B01D47/06F23G7/07
CPCB01D47/06B01D53/52B01D53/58B01D53/78B01D2251/304B01D2251/506B01D2253/102F23G7/07Y02P70/10
Inventor 苏振华文飚张羽
Owner 中轻(晋江)卫生用品研究有限公司
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