Glass fiber filtration cloth for flue gas dust removal
A technology of glass fiber and filter cloth, which is applied in the direction of filtration and separation, chemical instruments and methods, separation methods, etc. It can solve the problems of affecting the corrosion resistance of filter cloth, difficulty in improving production efficiency, and shortening the service life of filter cloth, so as to broaden the use of Range, quality improvement, effect of tensile strength improvement
Active Publication Date: 2010-04-21
山东兴国新力环保科技股份有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The dewaxing temperature is high, the strength of the base fabric is damaged and the power consumption is high; the output roller speed is low, and the production efficiency is difficult to improve; and the dewaxing is still not complete, resulting in uneven coating and less coating amount, which affects the corrosion resistance of the filter cloth performance
Shorten the service life of the filter cloth and increase the user's use cost
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0038] a. Woven: Weaving using commercially available low-wax glass fiber yarn;
[0039] b. Dewaxing: the temperature is 280℃, the speed of the discharging roller is 1400 rpm
[0040] c. Coating:
[0041] Polytetrafluoroethylene emulsion, solid content 50wt% 25
[0042] Silicone oil emulsion, solid content 55wt% 5
[0043] Graphite powder, ≤0.1μm 2
[0044] Water 68.
[0045] Impregnation, heat curing, shaping;
[0046] d. Quality inspection: packaging and storage after qualified.
[0047] Breaking strength in warp direction, N / 2.5cm≥2371.5, breaking strength in weft direction, N / 2.5cm≥2776.
Embodiment 2-6
[0049] According to the method and steps of Example 1, where a step uses low wax 45 s / 6-ply yarn glass fiber woven; the coating formula used in step c is shown in Table 1:
[0050] Table 1
[0051] Raw materials
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Abstract
The invention relates to glass fiber filtration cloth for flue gas dust removal, which comprises a base fabric and a coating, and is characterized in that: a, the base fabric is low-wax filtration cloth; and b, the coating comprises the following raw material components in percentage by weight: polyfluortetraethylene emulsion ( with a solid content of 50 percent) 18-25, silicon oil emulsion (with a solid content of 55 percent)4-7, graphite powder (with a particle diameter of less than or equal to 0.1mum) 1-5 and water 68-70. The invention successfully solves the problems of low product quality, short product service life and high production cost which result from high dewaxing temperature, low rotating speed of a discharge roll and uneven coating in the prior art by providing the glass fiber filtration cloth for flue gas dust removal which has the advantages of low dewaxing temperature, low power consumption, high production efficiency, even coating, high anticorrosion performance and long service life. The dewaxing temperature drops by more than 60 DEG C and the rotating speed of the discharge roll is increased by more than 400 r / min.
Description
Technical field [0001] The invention is a flue gas dust removal glass fiber filter cloth. It belongs to the production and processing of filter materials for gaseous fluids. Background technique [0002] In order to protect the atmospheric environment that humans rely on for survival, the flue gas produced by industries such as steel, thermoelectricity, coking, ceramics, and cement must be discharged after dust removal and purification. Therefore, the demand for glass fiber filter cloth for flue gas dust removal and purification is increasing year by year, and more stringent requirements are continuously placed on product quality and product prices. Obviously, improving product quality and reducing production costs are the eternal pursuit of manufacturers of filter cloth for flue gas dust removal. [0003] In the prior art, the commercially available wax-containing glass fiber filter cloth is used as the base cloth, and the wax content is high. It has to be dewaxed at a higher t...
Claims
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Patent Timeline
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Inventor 蒋树军
Owner 山东兴国新力环保科技股份有限公司