Off-line rotary pulse deashing sack cleaner
The utility model relates to a kind of off-line rotary pulse deashing sack cleaner, and specifically being used for this body profile is cylindrical sack cleaner, belongs to the environmental protection equipment technical field.
Before the utility model was made, in prior art, the rotary counter-blowing sack cleaner mainly was made up of body, air inlet, air outlet, filter chamber, ash bucket, auger conveyor, back blowing machine, blowback spiral arm, slew gear, clean room, filter bag, card.Dust-contained airflow enters the filter chamber by air inlet and carries out filtration, purification during its work, the bulky grain in the dust-contained airflow and the grit of cohesion are settled down in the ash bucket of bottom, granule then is trapped in its surface by filter bag, purified gas is led mouth through filter bag filter bag on card and is come together in clean room, suck and enter in the atmosphere by ventilation blower, in filter process, along with increasing of filter bag surface dust, dust remover resistance increases gradually, when resistance reaches set-point, back blowing machine work, blowback wind is blown into filter bag by the spirotheca spout and leads mouth, blows down the dust on filter bag surface.But the source of the gas of deashing is generally supplied with by centrifugal blower or roots blower, its bleed pressure is lower than 0.004Mpa and 0.08Mpa respectively, and employing online ash removal, be filter bag when reverse gas cleaning simultaneously again at the filtration state, deashing blowback air-flow and filtered airflow reverse flow, the dust on filter bag surface is not easy to be blown down, and ash-removal effect is poor.Purified gas is by discharging and to enter the blower fan import by being external in exhaust outlet that garden column type clean room deviates from the Cylinder center position in the clean room, the resistance height, it is little to handle air quantity, and filtration velocity is low, general filtration velocity is 0.8～1.0m/min, and the filter area of separate unit deduster is less than 1000m
The purpose of this utility model is to overcome above-mentioned weak point, thereby provides a kind of simple, compact and reasonable for structure; Can realize the pulse off-line ash-clearing, ash-removal effect is good; Can realize that several pulse valves finish the deashing of whole filter bags; Can reduce the resistance of deduster and decrease, resistance is little, reduces the operation power consumption, and floor space is little, and the steel consumption is low, the off-line rotary pulse deashing sack cleaner that filtration velocity can improve under identical air quantity.
Main solution of the present utility model is achieved in that
The utility model mainly adopts in body 10 bottoms and is provided with ash bucket 8, ash bucket 8 bottoms are provided with auger conveyor 9, on ash bucket 8 tops is filter chamber 7, card 11 is equipped with in 7 tops in the filter chamber, at card 11 and 7 of filter chambers filter bag 6 is housed, discharge pipe 12 is installed at body 10 drum centers, slew gear 3 is equipped with on discharge pipe 12 tops, rotation gas bag 1 is housed on slew gear 3 tops, pulse jet mechanism 5 is arranged on the rotation gas bag 1, off-line cover 4 is housed in the pulse jet mechanism 5, the air inlet pipe 13 of winding-up caisson is housed at body 10 drum centers.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Because adopt pulse dust cleaning, bleed pressure can reach about 0.3Mpa, ash-removal effect is good; Owing on spraying and blowing organ, have off-line equipment, can realize the pulse off-line ash-clearing, promptly filter bag helps improving ash-removal effect not at the filtration state during jetting deashing; Because adopt the rotation gas bag with the coaxial rotation in deduster body center, each pulse valve is finished the deashing to some groups of cloth bags respectively, thereby realize that 3～6 pulse valves finish the deashing of whole filter bags; Because filtering gas adopts clean room entad to introduce the blower fan import along the exhaust duct that is arranged at the center, filter chamber, can optimize air current composition, reduce the resistance of deduster and decrease, resistance is little, the final operation power consumption that reduces, floor space is little under the same air quantity, and the steel consumption is low; Dust remover resistance is at 600～1000Pa, and more than the low 500Pa of prior art dust remover resistance, filtration velocity can improve 30% under the identical air quantity.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model mainly is made up of the air inlet pipe 13 of rotation gas bag 1, clean room 2, slew gear 3, off-line cover 4, pulse jet mechanism 5, filter bag 6, filter chamber 7, ash bucket 8, conveying worm 9, body 10, card 11, middle discharge pipe 12 and winding-up caisson etc.Employing is provided with ash bucket 8 in body 10 bottoms, ash bucket 8 bottoms are for being provided with auger conveyor 9, on ash bucket 8 tops is filter chamber 7, card 11 is equipped with in 7 tops in the filter chamber, at card 11 and 7 of filter chambers filter bag 6 is housed, middle airduct 12 is installed out at body 10 drum centers, be shaped on air outlet 15 on the middle airduct 12, on middle discharge pipe 12 tops slew gear 3 is housed, rotation gas bag 1 is housed on slew gear 3 tops, pulse jet mechanism 5 is arranged on the rotation gas bag 1, and off-line cover 4 is housed in the pulse jet mechanism 5, and the air inlet pipe 13 of winding-up caisson is housed at body 10 drum centers.
Operation principle of the present utility model:
The utility model dusty gas is entered from bottom to top by the air inlet 14 that is shaped on the deduster body 10 (lower box), enter filter chamber's upper space, bulky grain and cohesion grit are at the centrifugal action lower edge barrel ash bucket of whirlpooling down, granule dirt disperse space between filter chamber's bag, thereby held back by filter bag, purified gas sees through filter bag through the card filter bag clean room that comes together in suitable for reading, suck and enter in the atmosphere by air-introduced machine through deduster center pipe discharge pipe, along with the carrying out of filtering, the dust that adsorbs on the filter bag increases, resistance increases gradually, pulse backblowing control resistance is given to be gone up in limited time when reaching, control by PLC by differential pressure transmitter, automatically pulse backblowing is carried out in the work of control slew gear, pulse jet gas passes through spraying and blowing organ, the off-line cover carries out off-line blowback one by one to filter bag, reach and remove the dust that adsorbs on the filter bag, thereby resistance is reduced, when dropping to, resistance of the filter bag sets down in limited time, differential pressure transmitter is controlled by PLC, automatically control slew gear, pulse backblowing mechanism quits work, and the dust that falls into ash bucket is transported through tank car by cinder-discharging port through auger conveyor.