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Phenolic fiber high-temperature filtration dust removing felt and production method thereof

A phenolic fiber, filter and dust removal technology, applied in the field of phenolic fiber high-temperature filter and dust removal felt, can solve the problems of short service life, harsh working conditions, low temperature resistance, etc. Effect

Inactive Publication Date: 2012-01-18
山东新兴业环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the waste incineration industry, especially the flue gas dust collection requirements at the tail are very high, and the working conditions are extremely harsh, and the flue gas contains sulfides, nitrogen oxides, hydrogen chloride, bromide, dioxins and other highly corrosive substances; And the water content is large, and the general filter material is difficult to resist the temperature and chemical substances of the waste incineration flue gas
Therefore, the key to these dust removal equipment is the filter material used. The filter materials currently used are PTFE needle felt, aramid needle felt, PPS needle felt, glass fiber needle felt, Metas needle felt, etc., but Existing products have many defects such as short service life, poor thermal stability, low temperature resistance, etc., indirectly increase energy consumption, economical practicability and environmental protection effect are not significant, increase the cost of dust removal, and reduce the economic benefits of the enterprise

Method used

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  • Phenolic fiber high-temperature filtration dust removing felt and production method thereof
  • Phenolic fiber high-temperature filtration dust removing felt and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Refer to attached figure 1 Make the invention. The phenolic fiber high-temperature filter dust removal felt is characterized in that it includes a fiber surface layer 1, a fiber-based felt layer 2 and a fiber bottom layer 3, and the fiber surface layer 1 and the fiber bottom layer 3 are made of a mixture of phenolic fiber and aramid fiber. The base felt layer 2 is made of PTFE long fibers, and the fibers in the fiber surface layer 1 and the fiber base layer 3 are respectively pierced into the fiber base layer and the surface layer through both sides of the fiber base felt layer 2, so that the fiber surface layer 1, the fiber base felt The layer 2 and the fibrous bottom layer 3 are tightly consolidated into one body, preventing the fiber surface layer 1, the fiber-based mat layer 2 and the fiber bottom layer 3 from being separated from each other.

[0030] The production method of the phenolic fiber high temperature filter dedusting felt of the present invention adopts ...

Embodiment 2

[0053] Refer to attached figure 1Make the invention. The production method of the phenolic fiber high-temperature filter dust-removing felt adopts the following steps to complete:

[0054] (1), antistatic treatment:

[0055] Spray the fiber antistatic oil evenly on the phenolic fiber and aramid fiber and let it penetrate naturally for 4.5 hours to reduce the static electricity generated by the fiber during carding;

[0056] (2), prepare fiber-based felt layer 2:

[0057] Warp the PTFE yarn first, and then weave it into a fiber-based felt layer 2;

[0058] (3), carding, cross-lapping, and making fiber surface layer 1 and fiber bottom layer 3 respectively:

[0059] The phenolic fiber and aramid fiber after antistatic treatment are weighed according to the dosage ratio of 1:1. After being opened and mixed in the cotton mixing box, they are carded into a single web, and then laid into a fiber mesh by a cross-lapper. Make fiber surface layer 1 and fiber bottom layer 3;

[006...

Embodiment 3

[0076] Refer to attached figure 1 Make the invention. The production method of the phenolic fiber high-temperature filter dust-removing felt adopts the following steps to complete:

[0077] (1), antistatic treatment:

[0078] Spray the fiber antistatic oil evenly on the phenolic fiber and aramid fiber, let it penetrate naturally and keep it for 5 hours to reduce the static electricity generated by the fiber during the carding process;

[0079] (2), prepare fiber-based felt layer 2:

[0080] Warp the PTFE yarn first, and then weave it into a fiber-based felt layer 2;

[0081] (3), carding, cross-lapping, and making fiber surface layer 1 and fiber bottom layer 3 respectively:

[0082] The phenolic fiber and aramid fiber after antistatic treatment are weighed according to the dosage ratio of 1:1. After being opened and mixed in the cotton mixing box, they are carded into a single web, and then laid into a fiber mesh by a cross-lapper. Make fiber surface layer 1 and fiber bot...

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Abstract

The invention discloses a phenolic fiber high-temperature filtration dust removing felt and a production method thereof. The phenolic fiber high-temperature filtration dust removing felt comprises a fiber surface layer, a fiber-based felt layer and a fiber bottom layer, wherein both the fiber surface layer and the fiber bottom layer are prepared by mixing phenolic fiber with aramid fiber; the fiber-based felt layer is made from PTFE (Polytetrafluoroethylene) long fiber; fiber bundles in the fiber surface layer and the fiber bottom layer are inserted into the fiber-based felt layer from both sides of the fiber-based felt layer respectively, and are fixedly arranged into a whole; and a finished product is obtained by performing antistatic treatment on the phenolic fiber and the aramid fiber, preparing the fiber-based felt layer, preparing the fiber surface layer and the fiber bottom layer respectively by carding and lapping crosswise, performing acupuncture compounding, coating, thermally sizing at high temperature, singeing and slightly pressing. The phenolic fiber high-temperature filtration dust removing felt and the method have the advantages of high temperature resistance, wearing resistance, fracture resistance, corrosion resistance, high intensity and long service life, and are suitable for the field of dust removal at high temperature of 300-350 DEG C. According to the invention, the using cost is reduced greatly, and the economic benefits of enterprises are increased.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a phenolic fiber high-temperature filter dust removal felt and a production method thereof. Background technique [0002] At present, the exhaust gas temperature of general industrial furnaces is above 1000°C. Due to technical and economic reasons, it is not directly treated in the world. Instead, it passes through the pipeline and infiltrates cold air into the pipeline or sprays cold water outside the pipeline to cool down. Purification treatment will be carried out when the target is reached, but the length of the pipeline is limited by the site, and excessive seepage of cold air or cold water will increase a large amount of energy consumption. In the field of high-temperature dust removal, the maximum working temperature is generally 220°C-240°C. For the thermal power generation industry, due to the generally high dust concentration in the flue gas, it is generally 30...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16B32B27/02B32B27/08B32B27/12B32B27/30
Inventor 陈玉文木忠良蔺磊徐秀波
Owner 山东新兴业环保科技股份有限公司