CN2557204Y

CN2557204Y - Air box pulse spraying bag type dust collector

Info

Publication number: CN2557204Y
Application number: CN 02275709
Authority: CN
Inventors: 潘志明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-15
Filing date: 2002-07-15
Publication date: 2003-06-25
Anticipated expiration: 2012-07-15

Abstract

The utility model provides a gas box pulse spraying bag-typed dust catcher. The utility model is provided with a shell with an ash receiving hopper; the shell is internally divided into a gas box, an exhaust room, a bypass air path and a group of smoke gas room by clapboards; a group of filter bags hang on an upper clapboard in the smoke gas room; the gas box is internally provided with an exhaust valve and a pulse spraying valve; under the pumping action of a wind guide main pipe, the powder ashes and dust slag impurities are filtrated and blocked by the filter bags; the clean air after filtration enters the exhaust room through the gas box and is exhausted by the wind guide main pipe; the instant high pressure airflow sprayed by the pulse spraying valve can blow the powder ashes and dust slag impurities adsorbed on the external surface of the filter bag down to an ash receiving hopper, so as to realize the object of cleaning and recycling the ashes. The utility model has the advantages of novel design, low manufacture cost, high dedusting efficiency, good continuous and stable operation performance, extremely convenient filter bag replacement and maintenance management, and having extremely good generalization application prospect.

Description

The air box pulse spraying bag filter

Technical field:

The utility model relates to and a kind of industrial dust, ash-laden gas is carried out purified treatment and can collect the device of powder ash, the reuse of dirt slag waste material, specifically a kind of air box pulse spraying bag filter, it is particularly suitable for manufacture of cement factory and discharging dust such as iron and steel, electric power and chemical industry, manufacturing enterprise that exhaust gas volumn is bigger installs and uses.

Background technology:

We know; A large amount of industrial dust and ash-laden gas can discharge in the enterprise that produces cement, iron and steel, chemical products, harmful substances such as industrial dust that these enterprises discharge and ash-laden gas meeting severe contamination air, the environment space that people are depended on for existence causes huge pollution.China environmental protection administrative service division has force these enterprises and must handle and up to standardly can allow discharging the industrial waste gas that is discharged, to industrial waste gas handle can not be up to standard enterprise will limit output to being forced to property even close stopping production.Up to now, in the most enterprises of China the processing of industrial dust and ash-laden gas is remained and to continue to use traditional moisture film water-bath dedusting technology, this moisture film water-bath dedusting technology is that harmful substances such as dust flue gas is soluble in water, though it can alleviate the industrial waste gas that the discharged pollution level to air, but this moisture film water-bath dedusting technology one-time investment expense is higher, water consumption is bigger in running, directly cause the processing cost of industrial waste gas to increase, the management and maintenance expense also increases thereupon, and, work as dust, discharging can form new industrial wastes pollution sources after harmful substances such as flue gas are water-soluble, once can cause huge pollution to the ecological environment of river basin again.Obviously, this moisture film water-bath dedusting technology only is a kind of temporary measure that table does not effect a permanent cure of controlling.Recently, in the dust collection device industry, released a kind of industrial filter bag dust-precipitator again, in general, this filter bag dust-precipitator can satisfy the requirement that slighter dust flue gas is handled, but, in the higher occasion of dust flue gas concentration, the phenomenon of filter bag appears stopping up in actual use easily, cause the air permeance resistance utmost point that gathers dust of filter bag to increase severely greatly, shortened the Acceptable life of filter bag greatly, have a strong impact on dust collection effect, the continous-stable runnability of dust collection device is reduced greatly, and it is not enough in use also to exist the deashing dynamics, the ash discharge deashing is difficulty comparatively, change the outfit filter bag and maintenance management also very the trouble.

Summary of the invention:

The utility model be propose on the basis of existing technology a kind of simple in structure, novel in design, cost of manufacture is low, the dust-collecting efficiency height, and the continous-stable runnability is good, filter bag and maintenance management air box pulse spraying bag filter extremely easily changes the outfit, it is that the top is equipped with cover, the bottom is equipped with the housing that connects ash bucket, top at housing is separated into gas tank by upper spacer, in housing, be separated out the exhaust chamber of sealing by midfeather, be separated into one group of flue dust chamber by one group of diaphragm plate, the blast pipe that is installed on exhaust chamber is connected with the air inducing person in charge, done one group of air release valve hole at the top of exhaust chamber, being threaded onto the guiding distributor pipe that connects in the ash bucket is connected with the flue dust person in charge, it is characterized in that one group of filter bag that is set in the cage skeleton mounts that to be suspended in one group of flue dust in upper spacer indoor, in gas tank, one group of drain tap by the cylinder interlock is installed with one group of corresponding position of air release valve hole, in gas tank, set of pulses snifting valve is installed with corresponding position, one group of flue dust chamber, during its work, be installed on each dust by distribution, the sweep-up pipe of smoke pollution source origination point imports the flue dust person in charge with dust and ash-laden gas, it is indoor all to be distributed into one group of flue dust by the guiding distributor pipe again, under the swabbing action that air inducing is responsible for, the powder ash, dirt slag impurity is barred from the filter bag outer surface by being suspended in one group of indoor filter bag filtration of flue dust, clean air after the filtration enters the filter bag inner chamber, through gas tank, air release valve hole enters exhaust chamber, by discharging behind the blast pipe input air inducing person in charge, when the powder ash that is adsorbed in the filter bag outer surface, dirt slag impurity is thicker, when the air permeance resistance of filter bag increases, at this moment cylinder operation promotes drain tap and closes air release valve hole, spray the instantaneous pressure air-flow by set of pulses snifting valve to the filter bag inner chamber, the powder ash of filter bag outer surface will be adsorbed in, dirt slag impurity blows off and breaks away from the filter bag surface and crash into and connect in the ash bucket, the gather dust purpose of deashing of realization, thereupon, cylinder spurs drain tap again and opens the working cycles that air release valve hole promptly enters next filtration deashing.

The utility model also has following technical characterictic:

In exhaust chamber, be separated out the bypass gas circuit of sealing again by a pair of dividing plate, the air inlet pipe that is installed on the bypass gas circuit is connected with the flue dust person in charge, the escape pipe that is installed on the bypass gas circuit is connected with the air inducing person in charge, when needs change the outfit filter bag or complete machine when needing repairing, can use bypass gas circuit discharging flue gas, not influence the operate as normal of production system.

At the bottom device that connects ash bucket ash-valve is arranged, manually the time opening ash-valve is collected powder ash, the reuse of dirt slag, ash-valve also can be selected the quantitative open valve for use, when being deposited on the powder ash that connects ash bucket bottom, when dirt slag thing reaches the weight of setting, promptly opening ash discharge automatically and collect reuse.

Description of drawings:

Fig. 1 is the B-B view of Fig. 2, is structural representation of the present utility model;

Fig. 2 is the A-A view of Fig. 1;

Fig. 3 is the C-C partial view (amplification) of Fig. 1.

The specific embodiment:

The air box pulse spraying bag filter that the utility model proposes, it is that the top is equipped with cover 16, the bottom is equipped with the housing 1 that connects ash bucket 22, top at housing 1 is separated into gas tank 17 by upper spacer 18, be separated out the exhaust chamber 6 of sealing by midfeather 4 at housing 1 middle part, be separated into one group of flue dust chamber 2 by one group of diaphragm plate 30, the 2 one-tenth two row symmetric arrays in one group of flue dust chamber are in the both sides of exhaust chamber 6, the blast pipe 8 that is installed on exhaust chamber 6 is connected with the air inducing person in charge 27, air release valve hole 15 has been done in the position of corresponding each flue dust chamber 2 at exhaust chamber 6 tops, being threaded onto the guiding distributor pipe 21 that connects in the ash bucket 22 is connected with the flue dust person in charge 31, guiding distributor pipe 21 is made the semicanal structure under shed, has good guiding distribution effect, one group of filter bag 3 that is set in cage skeleton 7 mounts in upper spacer 18 is suspended in one group of flue dust chamber 2, filter bag 3 selects for use glass Nomex or terylene Nomex material to make, has high temperature resistance, resistive connection reveals and hinders dirt preferably and breathe freely and explosion-proof performance, in gas tank 17, one group of drain tap 9 by cylinder 13 interlocks is installed with each air release valve hole 15 corresponding position, the piston rod junction of drain tap 9 and cylinder 13 can adopt the connected mode of multi-directional ball, can realize automatic aligning, has good opening and closing performance, the position that adapts with each flue dust chamber 2 in gas tank 17 is equipped with set of pulses snifting valve 12, be separated out the bypass gas circuit 5 of sealing again with a pair of dividing plate 20 at exhaust chamber 6 middle parts, the air inlet pipe 28 that is installed on bypass gas circuit 5 is connected with the flue dust person in charge 31, and the escape pipe 19 that is installed on bypass gas circuit 5 is connected with the air inducing person in charge 27.When needs change the outfit filter bag 3 or complete machine when needing repairing, can use bypass gas circuit 5 discharging flue gases, do not influence the operate as normal of production system.It is work like this: at first, close the bypass intake valve 29 that is installed on bypass gas circuit 5 air inlet pipe 28 and the bypass air outlet valve 26 on the escape pipe 19, opening flue dust is responsible for the intake valve 32 on 31 and is installed on air bleeding valve 25 on the blast pipe 8 of exhaust chamber 6, be installed on each dust by distribution, the sweep-up pipe of smoke pollution source origination point imports the flue dust person in charge 31 with dust and ash-laden gas, all be distributed in one group of flue dust chamber 2 by being responsible for the 31 guiding distributor pipes 21 that are connected again with flue dust, air-flow direction motion as shown in arrow 24, under the air inducing person in charge 27 swabbing action, the powder ash, dirt slag impurity filters the outer surface that is barred from filter bag 3 by the one group of filter bag 3 that is suspended in the flue dust chamber 2, clean air after the filtration enters the inner chamber 11 of filter bag 3, again through gas tank 17, air release valve hole 15 enters exhaust chamber 6, by discharging behind the blast pipe 8 input air inducing persons in charge 27, when the powder ash that is adsorbed in filter bag 3 outer surfaces, dirt slag impurity is thicker, when the air permeance resistance of filter bag 3 increases, can be by the Electromagnetic Control circuit start High-pressure air valve that configures in advance, import high-pressure air source by the high-pressure air pipe 14 that is communicated with high-pressure cylinder to cylinder 13, at this moment cylinder 13 work promote drain tap 9 and close air release valve hole 15, simultaneously, import high-pressure air source by the high-pressure air pipe 10 that is communicated with high-pressure cylinder to set of pulses snifting valve 12, by the inner chamber 11 ejection instantaneous pressure air-flows of set of pulses snifting valve 12 to filter bag 3, the powder ash of filter bag 3 outer surfaces will be adsorbed in, dirt slag impurity blows off and breaks away from filter bag 3 and crash into and connect in the ash bucket 22, the purpose of deashing can realize gathering dust, subsequently, cylinder 13 spurs drain tap 9 again and opens the working cycles that air release valve hole 15 promptly enters next filtration deashing.At the bottom device that connects ash bucket 22 ash-valve 23 is arranged, manually reuse is collected in the time opening ash discharge, ash-valve 23 also can be the quantitative open valve, when being deposited on the powder ash that connects ash bucket 22 bottoms, when dirt slag thing reaches the weight of setting, promptly opening ash discharge automatically and collect powder ash, the reuse of dirt slag.When needs change the outfit filter bag 3 or complete machine when needing repairing, can use bypass gas circuit 5 discharging flue gases, it is like this operation: close flue dust and be responsible for the intake valve 32 on 31 and be installed on air bleeding valve 25 on the blast pipe 8 of exhaust chamber 6, unlatching is installed on bypass intake valve 29 on bypass gas circuit 5 air inlet pipe 28 and the bypass air outlet valve 26 on the escape pipe 19, make bypass gas circuit 5 unimpeded, can guarantee that production system can operate as normal directly by bypass gas circuit 5 discharging flue gases.

Claims

1. air box pulse spraying bag filter, it is that the top is equipped with cover (16), the bottom is equipped with the housing (1) that connects ash bucket (22), top at housing (1) is separated into gas tank (17) by upper spacer (18), in housing (1), be separated out the exhaust chamber (6) of sealing by midfeather (4), be separated into one group of flue dust chamber (2) by one group of diaphragm plate (30), the blast pipe (8) that is installed on exhaust chamber (6) is connected with the air inducing person in charge (27), done one group of air release valve hole (15) at the top of exhaust chamber (6), being threaded onto the guiding distributor pipe (21) that connects in the ash bucket (22) is connected with the flue dust person in charge (31), it is characterized in that one group of filter bag (3) that is set in cage skeleton (7) mounts in upper spacer (18) is suspended in one group of flue dust chamber (2), in gas tank (17), one group of drain tap (9) by cylinder (13) interlock is installed, in gas tank (17), set of pulses snifting valve (12) is installed with corresponding position, one group of flue dust chamber (2) with the corresponding position of one group of air release valve hole (15).

2. air box pulse spraying bag filter according to claim 1, it is characterized in that in exhaust chamber (6), being separated out again the bypass gas circuit (5) of sealing by a pair of dividing plate (20), the air inlet pipe (28) that is installed on bypass gas circuit (5) is connected with the flue dust person in charge (31), and the escape pipe (19) that is installed on bypass gas circuit (5) is connected with the air inducing person in charge (27).

3. air box pulse spraying bag filter according to claim 1 and 2 is characterized in that the bottom device that connects ash bucket (22) has ash-valve (23).