Connection method of filter material, filter bag and filter core formed by method
A connection method and filter material technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problem of low tensile strength and achieve excellent corrosion resistance.
Inactive Publication Date: 2014-06-25
SICHUAN FUSI SURFACE TECH
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Problems solved by technology
[0002] When producing high-temperature resistant filter bags (≥500°C) or filter elements, the filter material is generally made of non-woven fabric (felt) or woven fabric made of porous ceramic fibers or carbon fibers. The best method is to use adhesive bonding or sewing with the same fiber thread, but the temperature resistance of the adhesive generally cannot exceed 250 ° C, the sewing thread of the same fiber is thicker, and the tensile strength is not high, so the filter material is restricted. Gas-solid separation, liquid-solid separation, etc. in gas, large boiler high-temperature dust removal (such as thermal power plants), steel plant high-temperature dust removal, environmental protection industry incinerator high-temperature dust removal, chemical plant acid mist treatment and other high-temperature, acid-etching treatment occasions application
Method used
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Embodiment Construction
[0018] Acupuncture technology is a mature technology used to produce fiber mats of polymer materials (such as PP, PE, PET). Thick felt, which needs to go through shearing, singeing and other processes, and finally forms a commodity material. In the patent, non-metallic non-woven and woven fabrics are used. In order to facilitate welding, acupuncture technology is applied to the process edge treatment of the above materials. Using acupuncture methods and special equipment, metal fibers are implanted to form Solderable interface. In addition, the same purpose can also be achieved by sewing multiple rows of metal wires on the edge of the non-metallic filter material.
[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to...
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Abstract
The invention discloses a connection method of a filter material. The method comprises the steps of: 1) pretreating the filter material, i.e. disposing metal interconnecting pieces on the periphery of a nonmetal substrate; and 2) bringing the metal interconnecting pieces into interconnection through welding. In addition, the invention also discloses a filter bag and a filter core that are connected and formed by the method of the invention. According to the filter material connection method of the invention, welding of longitudinal joint surfaces can be realized, and the welding joint intensity is higher than intensity of the substrate. Besides, the filter bag and filter core that are connected and formed by the filter material connection method of the invention can tolerate a high temperature of 450-500DEG C and have excellent corrosion resistance. Thus, the application scope of the filter material is expanded.
Description
technical field [0001] The invention relates to the technical field of manufacturing filter bags or filter elements, in particular to a method for connecting filter materials and a filter bag and filter element formed by connecting through the method. Background technique [0002] When producing high-temperature resistant filter bags (≥500°C) or filter elements, the filter material is generally made of non-woven fabric (felt) or woven fabric made of porous ceramic fibers or carbon fibers. The best method is to use adhesive bonding or sewing with the same fiber thread, but the temperature resistance of the adhesive generally cannot exceed 250 ° C, the sewing thread of the same fiber is thicker, and the tensile strength is not high, so the filter material is restricted. Gas-solid separation, liquid-solid separation, etc. in gas, large boiler high-temperature dust removal (such as thermal power plants), steel plant high-temperature dust removal, environmental protection industr...
Claims
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IPC IPC(8): B01D39/14B01D46/00B01D46/02
Inventor 安民
Owner SICHUAN FUSI SURFACE TECH