Bag explosion-proof dust collector

The High Temperature Filter Bag is the core filtering element of bag filters, specifically designed to filter dust particles from high-temperature flue gas. In industrial fields such as metallurgy, cement, electricity, waste incineration, chemical engineering, and glass manufacturing, smoke with temperatures as high as 150 ℃ to 300 ℃ or even higher is often generated during the production process.

1、 Description of Bag Explosion proof Dust Collector

The explosion-proof dust collector produced by our company uses the suction force of a high-pressure centrifugal fan to suck gas containing flammable and explosive dust into the explosion-proof dust collector body. After uniform distribution and diversion, the gas flows from bottom to top, and the dust is blocked on the surface of the bag. Clean air is discharged outside through the fan. To achieve the best dust removal effect, our company has installed anti-static cloth bags with a large filtration area and high precision filter materials. Their filtration efficiency can effectively remove solid particles with a diameter of 0.3-20 microns from the airflow, and the purification rate can reach over 95%. It has the advantages of simple structure, small footprint, convenient operation and maintenance, and high purification efficiency; To prevent dust from accumulating inside the body, generating high temperatures and sparks, in addition to the anti-static filter system, which is combined with multiple sets of configurations to form a linkage sound and light alarm automatic shutdown, the possibility of fire and explosion is reduced to a low level.

2、 Design of bag type explosion-proof dust collector

1. Bag type explosion-proof pulse dust collector body installation with explosion-proof fins;

2. Spray 2-3 layers of paint inside and outside the body, and use anti-static polyester fiber for the filtration system; Prevent potential combustion hazards caused by static sparks when dust accumulates inside the body and on the bag;

3. To prevent dust from accumulating in the body and dust bin, the dust bin and dust collector body are separated. At the same time, dust-proof plates should be installed on all beams, partitions, and other internal components of the dust collector during production, with a slope of less than 70 °. The slip angle of the ash hopper is greater than 70 °. To prevent dust accumulation due to the small angle between the two hopper walls, slip plates are welded to the adjacent side plates to eliminate dust deposition. Simultaneously configure an explosion-proof lock gas release ash discharge system;

4. A set of circular copper plates is welded at the air inlet collector of the centrifugal explosion-proof fan to prevent sparks generated by high-speed friction of the fan blades. The explosion-proof motor adopts a dust explosion-proof motor;

5. The system is also equipped with a real-time monitoring system for wind speed, temperature, pressure difference, and the stroke of the air lock and ash discharge system. When the wind speed inside the pipe is lower than the set value.

The High Temperature Filter Bag is the core filtering element of bag filters, specifically designed to filter dust particles from high-temperature flue gas. In industrial fields such as metallurgy, cement, electricity, waste incineration, chemical engineering, and glass manufacturing, smoke with temperatures as high as 150 ℃ to 300 ℃ or even higher is often generated during the production process. Ordinary filter media cannot withstand such high temperatures and is prone to shrinkage, hardening, damage, and even combustion, leading to dust removal failure. High temperature resistant dust removal bags have emerged, which are made of special heat-resistant fiber materials and can operate stably in high temperature environments for a long time, ensuring that flue gas emissions meet standards and guaranteeing production safety and environmental compliance.

　　

3、 Application Fields

Power industry: Dust removal of coal-fired power plant boiler flue gas.

Cement industry: High temperature flue gas treatment for rotary kilns, vertical mills, dryers, etc.

Steel metallurgy: purification of blast furnace gas, converter flue gas, and electric furnace flue gas.

Garbage incineration: The flue gas contains corrosive components such as dioxins, HCl, and SO ₂.

Chemical and petrochemical industries: dust removal for high-temperature corrosive gases such as catalytic cracking and coal chemical engineering.

Nonferrous metals: Treatment of flue gas from smelting furnaces.

4High temperature resistant dust bagCore performance indicators

Continuous use temperature: the highest temperature at which the filter material can work for a long time.

Instantaneous temperature resistance: The highest temperature that the filter material can withstand in a short period of time (usually ≤ 30 minutes).

Fracture strength and elongation: reflect the mechanical strength of the filter material.

Breathability: affects the operating resistance of the dust collector.

Filtration efficiency: the ability to capture dust of a specific particle size.

Chemical corrosion resistance: the ability to resist the erosion of acid, alkali and other components in flue gas.

Oxidation resistance: the ability to resist oxygen oxidation and degradation in flue gas (especially crucial for materials such as PPS).