Filter according to material properties can be divided into: polyester filter cloth, polypropylene fiber filter cloth, nylon cloth, cotton cloth, nylon dimension filter, high efficiency filter cloth and other materials. Filter belt screen is used for solid-liquid separation and industrial dust of a filter medium, it is the main material of natural fiber and synthetic fiber, such as nylon, polyester, polypropylene, filter material from the broad sense, including all kinds of metal materials, such as stainless steel wire and brass wire etc.. Filter belt screen in the production of the main purpose is a gas-solid separation and liquid-solid separation. Filter belt screen is a widely used industrial textile fabrics, in horizontal vacuum belt filter, pressure filter machinery, environmental protection machinery and other fields have a wide range of applications.

 

1, filter belt screen in a gas-solid separation applications

 

Filter belt screen used for gas-solid separation separation, is mainly composed of a variety of fiber products, such as glass fiber filter cloth, often used for gas filtration. Filter belt screen in a gas-solid separation, mainly used in heavy dust, or on the air cleanliness requirements high environment. Filter belt screen in a gas-solid separation of main purposes, in iron-making plant, steel plant, ferroalloy plant, refractory plant, casting plant, power plant and other enterprises for the flue gas, air dust; in combustion boiler, incinerator system used for gas filtration; in the automobile, aircraft, ships and other equipment for engine system filtering.

 

2, filter belt screen in solid-liquid separation purposes

 

Filter belt screen in solid-liquid separation purposes than gas solid separation is more widely. Industrial filter material in most species suitable for solid-liquid separation and fine material recovery, such as cotton cloth, wool weaving cloth, nylon cloth, polyester cloth, polypropylene fiber filter cloth and all kinds of metal materials filter cloth, belongs to this class.

 

Filter belt screen in solid-liquid separation, more for food and beverages such as wine, juice, milk and other products production process of purification and aseptic processing. Filter belt screen in the chemical, dye, pharmaceutical, coke, carbon black, plastic and other fields, are widely used in all kinds of intermediate products and chemical products recovery and separation. In addition, filter belt screen can also be used for biological pharmaceutical, paint, fuel and other areas of separation.

 

Non woven filter cloth

 

Nonwovens. Comprises a non-woven fabric, geotextile, filtering felt. Way of spunbonded, acupuncture, water texture. In 3, the filter cloth silk is also divided into three, filament, filament yarn, staple fiber. Polyester staple fiber series ( which also has large chemical fiber, small heating method, various fiber together with a resin binder and solvent into 0.2-2 thickness of the disk shaped filter. This kind of cloth of fibrous tissue is not random but messy and tightly arranged, the strength is poor than textile filter, filter paper, filter paper porosity is coarse, the resistance ratio filter small. Nonwoven filter has been used for filter press and horizontal disc filter, mainly used for clarification filtration, purification of low concentration of suspended solid particles in liquid. Such as beverage, whey, varnish, lubricating oil and plant gum filter. Non woven filter cloth filter mechanism, roughly graded filter, filter cloth from the portions of the surface layer section of large particles (greater than 100 ), the inner layer intercepts the high dispersion of small particles.

 

Filter cloth weaving processing

 

In order to improve the filter cloth filter characteristics and physical, mechanical performance, can be woven into the fabric of filter cloth after finishing. The processing method has many kinds, including calendering, fleece and hot rolling processing. Calender is mainly the cloth fabric in the hot press roll by rolling, so that the fabric has smooth surface, reducing the porosity of Jiang Bu yarn, in order to improve the filter on particle trapping properties and slag discharging capacity. After the filter strength some lower calendering. Raised in cloth fabric side of micro gear steel comb brush cloth surface yarn fibers to produce a fine soft hair, improve micro fine particle filter interception ability, improve the separation effect, improve filtrate clarity. Hot rolling process of this technique is limited to the synthetic fiber filter cloth, filter cloth is designed to improve the thermal stability and mechanical strength, making it more suitable for high temperature operation.

Micheal Chow
Sales
Hebei Defeng Polyester Fiber Co., Ltd
Add: Wugong Town West Raoyang County Hebei Province China
TEL: 0086-311-67699480
FAX: 0086-311-67699480
EAMIL: micheal@china-polyestermesh.com
Website: www.china-polyestermesh.com

Tag: filter belt screen, filter cloth