Removal Of Airborne Dust During The Production Process Of Filter Bag

Removing airborne dust during the production process The filter bag can be customized. And this is a key part of the bag filter operation process, and usually the cylindrical bag filter is vertically suspended in the dust collector. The fabric and design of the filter bag should ensure effective filtration, easy dust removal and durability.

In the pulse and air chamber type of pulse dust collector, the dust is attached to the outer surface of the airborne dust removal system during the production process of the filter bag. When the dust gas passes through the dust collector, the dust is retained on the outer surface of the filter bag, while the clean gas enters the inside of the filter bag through the filter material. The frame frame inside the filter bag is used to support the filter bag, prevent it from being destroyed, and at the same time help remove and redistribute the dust deposits.

* Filter fabric depends on the thickness of the entire filter layer for filtration, which refers to deep filtration

* The entire depth of the filter layer is formed by fibers to form a three-dimensional porous structure, from loose to dense from the inside out, forming a gradient filtration

* High pollutant capacity, long filtration life and low pressure drop

Material: PP (polypropylene), PE (polyester), PTFE (polytetrafluoroethylene)

Rings: Stainless steel ring, Plastic ring

Product Characteristics and Applications

1. Polypropylene Removing dust from the air during the production process of filter bag, which has good wear resistance and high elastic recovery rate. When the load increases, the creep elongation of polypropylene is greater than that of polyester. Polypropylene can withstand temperatures up to 90 ° C, and its chemical properties are the best among all chemical fibers. It is resistant to both acids and alkalis. It has good resistance to other acids, except for oxidizing acids such as chlorosulfonic acid and concentrated nitric acid. We are a professional manufacturer of polypropylene needle felt, with various product models and scientifically proven materials. It can effectively filter and has high filtration precision. In addition, the price of polypropylene needle felt is reduced and the quality is excellent.

2. The removal of polyester airborne dust during the production process of needle-punched felt filter bag is realized by repeated needle piercing and corresponding hot rolling treatment. After the short fibers are loosened, carded and laid into a fiber mesh, the fiber mesh is then reinforced into a cloth by a needle. The needle has hooks and spikes, and the fiber mesh is repeatedly pierced and reinforced by hooks and belts to form a needle-punched non-woven fabric. The non-woven fabric has no distinction between the warp and weft threads, and the fibers in the fabric are random, with little difference in radial and weft characteristics.

3. The material used to remove PTFE dust during the production process is PTFE fiber, which is currently the best chemical-resistant fiber. It is obtained from "fluorine" rock, and the melting point of its fiber is 327 °C. Instantaneous heat resistance can reach 300 °C. PTFE fiber has good low friction coefficient, is difficult to burn, and has good insulation and insulation properties. It should be noted that due to the low friction coefficient of PTFE fiber, the bonding ability of PTFE non-woven felt is relatively weak, which makes the cleaning pressure of PTFE needle felt high. It is necessary to strengthen the control in the design and use

Dust removal method

1. Gas cleaning: Gas cleaning refers to the use of high-pressure gas or external atmosphere to blow through the filter bag to remove dust accumulation on the filter bag. Gas cleaning includes pulse cleaning, reverse blowing cleaning and reverse suction cleaning.

2. Mechanical vibration cleaning: divided into upper vibration cleaning and middle vibration cleaning (both for filter bags), it is achieved by periodically rotating the mechanical vibration device to clean the accumulated dust on each row of filter bags.

3. Manual tapping: This is the process of manually tapping each filter bag to remove accumulated dust.