Pulse bag filter

Pulse bag filter since its introduction in the fifties, after extensive use, continuous improvement, in the purification of dusty gases has made great progress, due to the dust removal technology, gas cloth ratio greatly improved, so it has a large handling air volume, covers an area of small, purification, work, simple structure, small maintenance and so on. Dust removal efficiency can reach above. It is a mature and comparative dust removal equipment.

Characteristics

1、Pulse bag filter Adopting the technology of clearing dust by pulse blowing in a separate chamber and stopping the wind, it overcomes the shortcomings of conventional pulse dust collector and separate chamber reverse blowing dust collector, clearing dust, removing dust, with low concentration of emission, small air leakage rate, less energy consumption, less steel consumption, less occupying area, stable operation, and good economic benefits. It is suitable for purification of dusty gas and material recovery in metallurgy, building materials, cement, machinery, chemical industry, electric power and light industry.

2、Because of the use of a chamber stop pulse blowing cleaning, blowing once can achieve the purpose of cleaning, so the cleaning cycle is prolonged, reducing the cleaning energy consumption, pressure gas consumption can be greatly reduced. At the same time, the fatigue degree of the filter bag and pulse valve is also reduced accordingly, so as to improve the life of the filter bag and valve piece exponentially.

3, maintenance and bag change can be carried out without stopping the system fan, the system under normal operating conditions in separate rooms. The bag mouth of the filter bag adopts elastic ring, with good sealing performance and firmness. The filter bag keel adopts polygonal shape, which reduces the friction between the bag and the keel, prolongs the life of the bag, and facilitates the unloading of the bag.

4、Using the upper bag extraction method, after the bag cage is extracted when the bag is changed, the dirty bag is put into the grey hopper in the lower part of the box, and taken out by the manhole, which makes it easy to change the operating conditions of the bag.

5、The box adopts airtight design with good sealing, the inspection door is made of excellent sealing material, and the leakage rate is very low due to paraffin leakage check during the production process.

6、Inlet and outlet ducts are compactly arranged, with small airflow resistance.

Folding editorial working principle

Dust gas from the dust hopper (or the lower wide open flange) into the filter chamber, the coarser particles fall directly into the dust hopper or ash bin, dust gas filtered by the filter bag, dust retained on the surface of the filter bag, the net gas through the mouth of the bag to the net gas chamber, discharged by the blower into the atmosphere, when the dust on the surface of the bag continues to increase, resulting in the rise of the resistance of the equipment to the set value, the time relay (or differential pressure controller) output signal, the programmable instrument began to work. Open the pulse valve one by one, so that the compressed air through the nozzle of the filter bag for blowing cleaning, so that the filter bag suddenly expansion, under the action of the reverse airflow, attached to the surface of the filter bag dust out of the filter bag falls into the ash hopper (or ash bin), dust discharged by the ash discharge valve, all the filter bag blowing cleaning is completed, dust collector to return to normal operation.

Pulse bag filter Normal operation, dusty gas from the air inlet into the dust hopper, due to the expansion of the gas volume, a part of the coarser dust particles by inertia or natural settlement and other reasons fall into the dust hopper, the rest of the majority of dust particles with the airflow up into the bag chamber, filtered by the bag, dust particles are retained in the outside of the bag, the purified gas from the inside of the filter bag into the upper box, and then by the valve plate holes, the exhaust vent discharged into the atmosphere, so that the purpose of dust removal is achieved. The purpose of dust removal is achieved. With the continuous filtration, dust collector resistance also rises, when the resistance reaches the value, the dust controller sends out the order to clean the dust, firstly, the lifting valve plate will be closed to cut off the filtering airflow; then, the dust controller sends out a signal to the pulse solenoid valve, along with the pulse valve to be used as a cleaning of the high pressure inverse airflow into the bag, the filter bag swells and produces a strong jittering, resulting in the outside of the bag of the dust shaking off, and to achieve the purpose of cleaning the dust. The purpose of dust removal is achieved. As the equipment is divided into several boxes, so the above process is carried out box by box, a box area in the ash cleaning, the rest of the box area is still in normal operation, the equipment for continuous normal operation. The reason why it can deal with dust, the key lies in this kind of strong clearing time required for clearing dust (only 0.1~0.2s is needed for spraying once).

Folding editorial technical characteristics

(1)No need for pre-dusting equipment, can one-time treatment of up to 1000mg/m3 concentration of dust, the emission is less than 50mg/m3, the process is simple.

(2)No blowing pipe is needed inside the baghouse, and it is convenient to change the bag outside the machine.

(3)Embedded elastic bag mouth, good sealing performance.

(4)Small number of pulse valves, high intensity of ash cleaning and action;.

(5)The whole machine adopts microcomputer automatic control, each parameter is easy to adjust, and it can realise jobless work*.

(6)The service life of filter bag is more than two years.

(7) easy to achieve isolation maintenance.