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A kind of production method of water-repellent and oil-proof needle-punched felt filter material

A water- and oil-repellent, production method technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of inability to apply moisture resistance, oil resistance and acid resistance, affecting the filtration effect of filter felt, and short cleaning cycle, etc. Achieve the effect of improving the saturated impregnation effect, ensuring the continuity of production, and improving the peeling strength

Active Publication Date: 2020-08-28
福建福能南纺卫生材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Filter felt is the most widely used filter material in the industry. The surface of general filter felt is water-absorbent, which affects the filtering effect of the filter felt, and cannot be used in moisture-resistant, oil-resistant and acid-resistant environments. The service life is short and the cleaning cycle is short. , increasing the cost

Method used

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  • A kind of production method of water-repellent and oil-proof needle-punched felt filter material
  • A kind of production method of water-repellent and oil-proof needle-punched felt filter material

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Embodiment Construction

[0038] A method for producing a water-repellent and oil-repellent needle-punched felt filter material, comprising the steps of:

[0039] Step 1: Pretreatment of the dust layer and inner surface, including:

[0040] Step 1.1: Cleaning and combing the dust layer, laying the net, and pre-stabbing; where:

[0041] Opening and carding: use horn nails, carding needles and card clothing to open the fibers of the dust layer to achieve the effect of uniform mixing and carding transfer;

[0042] Laying: Under the clamping of the upper and lower carbon curtains of the laminating machine, the fiber webs of the dust-facing layer output by carding are moved synchronously to perform cross-lapping to achieve the ideal layering effect;

[0043] Pre-punching: Through the reciprocating movement of the needle plate and the needles, the fiber web fibers of the dust-facing layer output from the laying are forced into the interior of the fiber web, and the fluffy fiber web is compressed and thinned...

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Abstract

A production method of a water-repellent oil-proof needled felt filter material comprises: pretreating a dust-facing layer and an inner surface layer, to be specific, opening, cleaning and combing thedust-facing layer, lapping, pre-needling, opening, cleaning and combing the inner surface layer, and lapping; compositing the pretreated pre-needled cloth and base cloth of the dust-facing layer andthe pretreated fiber layer of the inner surface layer, pre-needling, and performing main needling, to be specific, pre-needling pre-needled felt that is incompletely firmly composited, performing top-bottom multiple repeated needling through multiple high-speed needle machines according to a set needling process, tangling the dust-facing layer, the base cloth layer and the inner surface layer to one another to form a composite felt of certain strength, density and thickness; facing and needling, to be specific, cross-needling the dust-facing layer and the inner surface layer again via a displacement counter-needling machine, and controlling surface hair to obtain the needled felt having required water repellency and oil resistance and having blot inner and outer appearances satisfying therequirements. The water-repellent oil-proof needled felt filter material produced via the production method has good moisture resistance, oil resistance and acid resistance.

Description

【Technical field】 [0001] The invention belongs to the technical field of filter devices, and specifically refers to a production method of a water- and oil-repellent needle-punched felt filter material. 【Background technique】 [0002] With the development of the national economy and the progress of social civilization, the country continues to increase the protection and governance of the environment on which we live, and environmental protection has become a hot spot that people always pay attention to. [0003] There are many contents in environmental governance, and what the present invention relates to is the problem of bag dust removal in atmospheric environmental governance. The core part of bag dust removal technology is the filter material, which is the "heart" part in the dry dust removal treatment of flue gas. The bag filter uses the principle of pore filtration in the filter material to process the polluted air, realize the separation of gas and solid particles, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/46B01D39/14D06M15/256
Inventor 李祖安黄族健黎清芳
Owner 福建福能南纺卫生材料有限公司
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