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DDF large bag type back blow deduster DDF大型袋式反吹除尘

DDF large bag type back blow deduster is an effective equipment to protect the health of the operator and the people, the growth of the crops, the wear of machinery and equipment, the pollution of the social environment and the recovery and

DDF large bag type back blow deduster is an effective equipment to protect the health of the operator and the people, the growth of the crops, the wear of machinery and equipment, the pollution of the social environment and the recovery and......
Hotline:+86-317-8388881 8388882
Product introduction
DDF large bag type back blow deduster is an effective equipment to protect the health of the operator and the people, the growth of the crops, the wear of machinery and equipment, the pollution of the social environment and the recovery and utilization of useful dust.
 
DDF working principle of large bag type back blowing duster:
 
DDF large bag reverse blow bag filter is divided into positive pressure type (also called press in type) and negative pressure type (also called inhalation type). This manual is introduced according to negative pressure.
 
Under the action of negative pressure, the dust gas enters the ash bucket by the inlet pipe, and there is a choke at the position of the inlet. The coarser dust falls into the ash bucket by gravity. The fine particle dust is filtered through the dust filter bag and adsorbed on the inner wall of the dust filter bag. The purified gas is passed through the cleaning chamber through the top switch valve through the pipe and inhaled the wind. In the machine, it is discharged into the atmosphere through the exhaust cylinder.
 
The structure features of DDF large bag type back blowing duster:
 
First, filter bags continue to increase. When the resistance rises, the ash will start to clear.
 
Two, DDF large bag type back blowing dust cleaning method depends on the single chamber air blowing mode, when the reverse blow air passes through the reversing valve, closes the exhaust pipe, opens the anti blow tube, and cuts off the air exhaust of the single room.
 
Three, because the inlet pipe of each chamber is connected, and all in the negative pressure state, because of the negative pressure suction effect of the adjacent room, the air flow is inhaled through the counter blow tube into the filter bag, through the filter bag, the air flow is entered into the inside of the filter bag outside the filter bag, and through the ash bucket and the inlet pipe of the room, the filter bag is sucked down at this time.
 
Four, the dust inside the filter bag will be shakes down to sink to sink, complete the single room ash, and the rest of the room, under the control of the ash clearing mechanism, carries out the same order of ash cleaning, except to a certain value, the dust is stopped.
 
DDF large bag type back blowing deduster mainly consists of upper box, medium box, ash bucket, air inlet pipe, support filter bag and spray device, ash discharging device and so on. It is widely used in smelting, crushing, sieving and combustion of enterprises in steel plant, smelter, cement plant, carbon black plant, power station and so on.

DDF大型袋式反吹除尘器是保护操作者和人民身心健康,农作物的生长、机械设备的磨损、社会环境的污染和有用粉尘的回收利用降低成本的有效设备。
 
DDF大型袋式反吹除尘器工作原理:
 
DDF大型袋式反吹布袋除尘器分正压式(又称压入式)和负压式(又称吸入式),本说明书按负压式介绍。
 
含尘气体在负压作用下,由各进风管进入灰斗,在进风口的部位设有阻流板,较粗的粉尘靠重力落入灰斗,细颗粒粉尘经除尘滤袋过滤,并吸附在除尘滤袋的内壁上,净化后的气体经净气室,通过设备顶部切换阀经排管吸入风机内,再经排气筒排入大气中。
 
DDF大型袋式反吹除尘器结构特征:
 
一、滤袋附尘不断增加,阻力上升规定值时,即开始清灰。
 
二、DDF大型袋式反吹除尘器的清灰方式靠单室反吹风方式,反吹风时通过换向阀,关闭排风管,打开反吹风管,切断单室的排风。
 
三、因为设备各室的进风管是相通的,而且都处于负压状态,因此由于邻室的负压抽吸作用,使气流通过反吹风管被吸入滤袋室,透过滤袋,气流由滤袋外侧进入内侧,经灰斗及该室的进风管而吸入邻室排出,此时滤袋被吸瘪。
 
四、滤袋内部的积尘随之被抖落沉到降沉灰斗,完成了单室的清灰,其余室在清灰执行机构的控制下,进行同样顺序的清灰,除到一定值时,清灰停止。
 
DDF大型袋式反吹除尘器主要由上箱体、中箱体、灰斗、进风均流管、支架滤袋及喷吹装置、卸灰装置等组成,广泛应用于钢厂、冶炼厂、水泥厂、炭黑厂、电站等企业冶炼、粉碎、筛分和燃烧所产生的烟尘净化及回收。