Needle-punched non-woven fabric: It is a kind of dry-laid non-woven fabric. The needle-punched non-woven fabric is a puncture effect of a lancet, and the fluffy fiber web is reinforced into a cloth.
The needle punched non-woven fabric is made of polyester and polypropylene raw materials, which are carded, combed, pre-acupuncture and main acupuncture. The center is added with a mesh interlayer, and then double-passed, and the air-laid acupuncture is combined into a cloth. The post-pressure filter cloth has a three-dimensional structure. After heat setting, after singeing, the surface is most chemically treated to make the filter cloth. The appearance is smooth and the micropores are evenly distributed. The density of the product is good from the surface, and the surface of both sides is smooth and breathable. The filtration on the plate and frame compressor proves that high-strength pressure can be used, and the filtration precision is up to 4 micrometers. Practice has proved that the non-woven filter cloth has better performance in the frame frame filter press: the coal slurry treatment in the coal plant, the wastewater treatment in the steel plant, and the wastewater treatment in the brewery and printing and dyeing plant. If other filter cloths are used, the cake pressure will appear. If it is not dry and it is difficult to fall off, after using the non-woven filter cloth, the filter cake will be quite dry when the filter pressure reaches 10kg-12kg, and the filter cake will fall off automatically when the filter is opened.