CN113101773A

CN113101773A - Industrial waste gas handles with filtering dust collector

Info

Publication number: CN113101773A
Application number: CN202110370506.1A
Authority: CN
Inventors: 王景辉; 吴占恒; 邹九九; 陈龙彬; 施杨杨
Original assignee: Longyan Huifeng Industry And Trade Co ltd
Current assignee: Longyan Huifeng Industry And Trade Co ltd
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-07-13
Anticipated expiration: 2041-04-07
Also published as: CN113101773B

Abstract

The invention discloses a filtering and dust removing device for industrial waste gas treatment, which comprises an exhaust fan, a pretreatment device and a dust removing device, wherein the pretreatment device comprises a first box body, an air inlet, a first guide plate, a first cavity, a first through hole, a second guide plate, a second cavity, a second through hole and a collecting component. The invention can filter and remove dust in industrial waste gas in various modes by arranging the exhaust fan, the pretreatment device, the dust removal device, the atomizing spray head, the water supply pipe, the solid-liquid separation bin, the filter box and the water storage cavity in a matching way, can fully separate the dust in the industrial waste gas, and can collect the separated dust, thereby solving the problems that the existing industrial waste gas treatment device has single dust filtering and removing mode, lower dust separation efficiency and can not collect the separated gas.

Description

Industrial waste gas handles with filtering dust collector

Technical Field

The invention belongs to the technical field of industrial waste gas, and particularly relates to a filtering and dust removing device for industrial waste gas treatment.

Background

Industrial waste gas is a generic term for various pollutant-containing gases discharged into the air during the combustion and production processes of fuels in the factory area of an enterprise. These exhaust gases are: carbon dioxide, carbon disulfide, hydrogen sulfide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, lead mercury (mist) sulfate, beryllium compounds, smoke dust and productive dust, which are discharged into the atmosphere and pollute the air. The substances enter human bodies through different paths of respiratory tracts, some substances directly cause harm, and some substances have an accumulation effect and can seriously harm the health of people. Different substances may have different effects.

The industrial waste gas treatment refers to the waste gas that produces specially to industrial site such as mill, workshop carry out the preliminary treatment before external emission to reach the work of the external standard of discharging of national waste gas, contain a large amount of dusts in the industrial waste gas, the dust concentration is too high and produces the explosion easily, can cause harm to staff's health moreover, the problem that prior art exists is: the existing industrial waste gas treatment device has single dust filtering and removing mode, the dust separation efficiency is lower, and the separated gas cannot be collected.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a filtering and dedusting device for industrial waste gas treatment, which has the advantages of being capable of filtering and dedusting dust in industrial waste gas in various modes, fully separating the dust in the industrial waste gas and collecting the separated dust, and solves the problems that the existing industrial waste gas treatment device has a single dust filtering and dedusting mode, is low in dust separation efficiency and cannot collect the separated gas.

The invention is realized in such a way, the filtering and dust removing device for industrial waste gas treatment comprises an exhaust fan, a pretreatment device for primary dust removal and a dust removing device for fine dust treatment, wherein the pretreatment device comprises a first box body, an air inlet arranged at one side of the first box body, a first guide plate arranged in the first box body in an inclined manner, a first cavity arranged below the first guide plate, a first through hole arranged on the first guide plate, a second guide plate matched with the first guide plate, a second cavity arranged above the second guide plate, a second through hole arranged on the second guide plate and a collecting component arranged in the first cavity, the first guide plate and the second guide plate are parallel to each other, a channel is formed between the first guide plate and the second guide plate, the air inlet is positioned at the bottom end of the channel, the channel is communicated with the first cavity through the first through hole, and the channel is communicated with the second cavity through the second through hole, the exhaust fan is communicated with the second cavity, and the air inlet end at the top of the first through hole is higher than the air outlet end at the top of the first through hole.

Preferably, the top of the first guide plate is provided with a first guide part matched with the first through hole, the first guide part is obliquely arranged in a plate shape, the first through hole comprises a first hole body positioned at the top and a second hole body connected with the first hole body, and the first hole body is arranged in a flaring manner.

Preferably, the bottom of the second guide plate is provided with a second guide part matched with the second through hole, the second guide part is in an arc shape which is obliquely arranged, the second guide part is partially parallel to the second guide plate, the second through hole comprises a third hole body smoothly transited with the second guide part and a fourth hole body connected with the third hole body, and the fourth hole body is in flaring arrangement.

Preferably, the collecting part comprises a material guiding hopper arranged at the top of the first cavity, a material dropping barrel communicated with the bottom end of the material guiding hopper, two fixing blocks arranged on the inner wall of the first cavity, a guide rod arranged on the fixing blocks, a spring arranged on the guide rod, a sliding block arranged at the top of the spring, a filter plate connected with the two sliding blocks and a connecting rod arranged on the filter plate, wherein the part of the connecting rod is positioned in the material dropping barrel.

Preferably, the blanking barrel comprises a first barrel body positioned at the top, a second barrel body arranged at the bottom of the first barrel body, a third barrel body arranged at the bottom of the second barrel body and a fourth barrel body arranged at the bottom of the third barrel body, the first barrel body and the second barrel body are straight barrel bodies, the third barrel body is hemispherical, the diameter of the first barrel body is smaller than that of the second barrel body, the fourth barrel body is in a circular truncated cone shape, and the connecting rod comprises a spherical part matched with the third barrel body, a connecting part connected with the spherical part and a conical part arranged at the bottom of the connecting part and matched with the fourth barrel body.

Preferably, the dust removing device comprises a second box body, a venturi tube connected with the first box body, a partition plate arranged inside the second box body, a blanking hopper arranged at the middle lower part of the second box body, an air guide pipe arranged on the partition plate, an electrostatic dust collector arranged above the partition plate and an air outlet pipe arranged on the second box body, wherein the air outlet pipe is connected with an exhaust fan.

Preferably, an atomizing nozzle is arranged in the middle of the venturi tube, and one end of the atomizing nozzle is connected with a water supply pipe.

Preferably, the bottom of the second box body is connected with a solid-liquid separation bin, a filter box is arranged inside the solid-liquid separation bin, a water storage cavity is arranged on the outer side of the filter box, the filter box is in threaded connection with the solid-liquid separation bin, and the water supply pipe is communicated with the water storage cavity.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention can filter and remove dust in industrial waste gas in various modes by arranging the exhaust fan, the pretreatment device, the dust removal device, the atomizing spray head, the water supply pipe, the solid-liquid separation bin, the filter box and the water storage cavity in a matching way, can fully separate the dust in the industrial waste gas, and can collect the separated dust, thereby solving the problems that the existing industrial waste gas treatment device has single dust filtering and removing mode, lower dust separation efficiency and can not collect the separated gas.

2. According to the invention, through arranging the first guide part, the first hole body and the second hole body, waste gas can be guided, normal circulation of the waste gas can be ensured, unnecessary obstruction in gas circulation is prevented, dust particles in the gas can conveniently fall into the first cavity through the first through hole, and the waste treatment efficiency is improved.

3. According to the invention, through the arrangement of the second guide part, the third hole body and the fourth hole body, the gas in the second cavity is accelerated through the fourth hole body and then is discharged from the third hole body, so that the flow velocity in the channel is improved, the treatment efficiency of waste gas is improved, and the utilization rate of the gas is improved.

4. According to the invention, the guide hopper, the blanking barrel, the fixing block, the guide rod, the spring, the sliding block, the filter plate and the connecting rod are arranged, so that dust in the first through hole can fall conveniently, the dust can fall below the filter plate in time when the weight of the dust reaches a certain amount, the total weight of the filter plate and the dust is reduced after the dust falls, the spring is reset to enable the filter plate to be attached to the blanking barrel, and the air flow in the first cavity is reduced.

5. According to the invention, the first cylinder, the second cylinder, the third cylinder, the fourth cylinder, the spherical part, the connecting part and the conical part are arranged, so that materials in the material guide hopper can be conveniently conveyed to the lower part of the filter plate in time, the spherical part can block the second cylinder when the filter plate is static, and the conical part can block the fourth cylinder when the filter plate falls down, so that the air flow in the first cavity is reduced.

6. According to the invention, through the arrangement of the second box body, the Venturi tube, the partition plate, the blanking hopper, the air guide pipe, the electrostatic dust collector and the air outlet pipe, the gas passing through the channel is accelerated by the Venturi tube and then is rapidly depressurized, dust can enter the bottom of the second box body through the blanking hopper, and the partition plate can prevent the gas containing a large amount of dust from directly entering the electrostatic dust collector; more specifically, be equipped with the relief valve on the play tuber pipe, the inside atmospheric pressure of first cavity can be avoided too big to the relief valve, guarantees industrial waste gas's normal filtration separation.

7. According to the invention, the atomizing nozzle is arranged, so that dust in the gas which is rapidly depressurized in the Venturi tube can be combined, the weight of the dust is increased after the dust is combined with atomized water drops, the dust falls down and enters the blanking hopper, and the dust is conveniently collected.

8. According to the invention, the solid-liquid separation bin, the filter box and the water storage cavity are arranged, and the filter box in the solid-liquid separation bin can separate water which absorbs dust, so that the dust-absorbing water is convenient to recycle.

Drawings

FIG. 1 is a schematic diagram of a structure provided by an embodiment of the present invention;

FIG. 2 is a left side view provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2 according to an embodiment of the present invention;

FIG. 4 is an enlarged view at A of FIG. 3 provided by an embodiment of the present invention;

FIG. 5 is an enlarged view at B in FIG. 3 provided by an embodiment of the present invention;

FIG. 6 is an enlarged view at C of FIG. 3 provided by an embodiment of the present invention;

fig. 7 is an enlarged view at D in fig. 3 provided by an embodiment of the present invention.

In the figure: 1. an exhaust fan; 21. a first case; 22. an air inlet; 24. a first cavity; 25. a first through hole; 26. a second guide plate; 27. a second cavity; 28. a second through hole; 29. a channel; 31. a first guide portion; 32. a first aperture body; 33. a second aperture body; 41. a second guide portion; 42. a third porous body; 43. a fourth porous body; 51. a material guide hopper; 52. a discharging barrel; 53. a fixed block; 54. a guide bar; 55. a spring; 56. a slider; 57. a filter plate; 58. a connecting rod; 61. a first cylinder; 62. a second cylinder; 63. a third cylinder; 64. a fourth cylinder; 65. a spherical portion; 66. a connecting portion; 67. a tapered portion; 71. a second case; 72. a venturi tube; 73. a partition plate; 74. a blanking hopper; 75. an air guide pipe; 76. an electrostatic precipitator; 77. an air outlet pipe; 81. an atomizing spray head; 82. a water supply pipe; 91. a solid-liquid separation bin is arranged; 92. a filter cartridge; 93. a water storage cavity.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

The structure of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 7, an embodiment of the invention provides a filtering and dust removing device for industrial waste gas treatment, which includes an exhaust fan 1, a pre-treatment device for primary dust removal and a dust removing device for fine dust treatment, the pre-treatment device includes a first box 21, an air inlet 22 disposed on one side of the first box 21, a first guide plate 23 disposed in the first box 21 and inclined, a first cavity 24 disposed below the first guide plate 23, a first through hole 25 disposed on the first guide plate 23, a second guide plate 26 engaged with the first guide plate 23, a second cavity 27 disposed above the second guide plate 26, a second through hole 28 disposed on the second guide plate 26, and a collecting member disposed in the first cavity 24, the first guide plate 23 and the second guide plate 26 are parallel to each other, a channel 29 is formed between the first guide plate 23 and the second guide plate 26, the air inlet 22 is located at the bottom end of the channel 29, passageway 29 is through first through-hole 25 and first cavity 24 intercommunication, passageway 29 is through second through-hole 28 and second cavity 27 intercommunication, air exhauster 1 and second cavity 27 intercommunication, the inlet end at first through-hole 25 top is higher than the end of giving vent to anger at first through-hole 25 top.

Referring to fig. 4, the top of the first guide plate 23 is provided with a first guide portion 31 matching with the first through hole 25, the first guide portion 31 is obliquely arranged in a plate shape, the first through hole 25 comprises a first hole body 32 at the top and a second hole body 33 connected with the first hole body 32, and the first hole body 32 is arranged in a flaring shape.

Adopt above-mentioned scheme: through setting up first guide part 31, the first hole body 32 and the second hole body 33, can lead waste gas, can guarantee the normal circulation of waste gas, produce the unnecessary separation when preventing the circulation of gas, inside dust particle that simultaneously can make things convenient for in the gas falls first cavity 24 through first through-hole 25, improves dumped treatment effeciency.

Referring to fig. 4, the bottom of the second guide plate 26 is provided with a second guide portion 41 matched with the second through hole 28, the second guide portion 41 is in an arc shape arranged obliquely, the second guide portion 41 is partially parallel to the second guide plate 26, the second through hole 28 comprises a third hole body 42 smoothly transiting to the second guide portion 41 and a fourth hole body 43 connected to the third hole body 42, and the fourth hole body 43 is in a flaring arrangement.

Adopt above-mentioned scheme: through setting up second guide part 41, third porose 42 and fourth porose 43, the gas in the inside of second cavity 27 is discharged from third porose 42 after accelerating through fourth porose 43, makes the inside velocity of flow of passageway 29 improve, improves the treatment effeciency of waste gas, improves gaseous utilization ratio.

Referring to fig. 3, 5 and 6, the collecting component includes a material guiding hopper 51 disposed at the top of the first cavity 24, a material dropping cylinder 52 communicated with the bottom end of the material guiding hopper 51, two fixing blocks 53 disposed on the inner wall of the first cavity 24, a guide rod 54 disposed on the fixing blocks 53, a spring 55 disposed on the guide rod 54, a slide block 56 disposed at the top of the spring 55, a filter plate 57 connected with the two slide blocks 56, and a connecting rod 58 disposed on the filter plate 57, wherein the connecting rod 58 is partially disposed inside the material dropping cylinder 52.

Adopt above-mentioned scheme: through setting up guide hopper 51, blanking barrel 52, fixed block 53, guide arm 54, spring 55, slider 56, filter 57 and connecting rod 58, can make things convenient for falling of the inside dust of first through-hole 25, can in time fall the filter 57 below when dust weight reaches a certain amount, the total weight of dust back filter 57 and dust that falls reduces, spring 55 resets and makes filter 57 and blanking barrel 52 paste together, reduces the inside air flow of first cavity 24.

Referring to fig. 6, the dropping cylinder 52 includes a first cylinder 61 at the top, a second cylinder 62 disposed at the bottom of the first cylinder 61, a third cylinder 63 disposed at the bottom of the second cylinder 62, and a fourth cylinder 64 disposed at the bottom of the third cylinder 63, the first cylinder 61 and the second cylinder 62 are straight cylinders, the third cylinder 63 is hemispherical, the diameter of the first cylinder 61 is smaller than that of the second cylinder 62, the fourth cylinder 64 is in a circular truncated cone shape, and the connecting rod 58 includes a spherical portion 65 matched with the third cylinder 63, a connecting portion 66 connected with the spherical portion 65, and a tapered portion 67 matched with the fourth cylinder 64 disposed at the bottom of the connecting portion 66.

Adopt above-mentioned scheme: through setting up first barrel 61, second barrel 62, third barrel 63, fourth barrel 64, spherical portion 65, connecting portion 66 and toper portion 67, the convenience is in time carried the filter 57 below with the material in the guide hopper 51, and spherical portion 65 can carry out the separation to second barrel 62 during static, and toper portion 67 can carry out the separation to fourth barrel 64 when filter 57 falls, reduces the inside air flow of first cavity 24.

Referring to fig. 3 and 7, the dust removing device includes a second box 71, a venturi tube 72 connected to the first box 21, a partition 73 disposed inside the second box 71, a blanking hopper 74 disposed at a middle lower portion of the second box 71, an air guiding pipe 75 disposed on the partition 73, an electrostatic dust collector 76 disposed above the partition 73, and an air outlet pipe 77 disposed on the second box 71, wherein the air outlet pipe 77 is connected to the exhaust fan 1.

Adopt above-mentioned scheme: by arranging the second box body 71, the Venturi tube 72, the partition plate 73, the blanking hopper 74, the air guide pipe 75, the electrostatic dust collector 76 and the air outlet pipe 77, the gas passing through the channel 29 is accelerated by the Venturi tube 72 and then is rapidly depressurized, dust can enter the bottom of the second box body 71 through the blanking hopper 74, and the partition plate 73 can prevent the gas containing a large amount of dust from directly entering the electrostatic dust collector 76; more specifically, be equipped with the relief valve on the tuber pipe 77, the relief valve can avoid the inside atmospheric pressure of first cavity 24 too big, guarantees industrial waste gas's normal filtration separation.

Referring to fig. 7, an atomizing nozzle 81 is provided in the middle of the venturi tube 72, and a water supply pipe 82 is connected to one end of the atomizing nozzle 81.

Adopt above-mentioned scheme: through setting up atomizer 81, can combine dust in the gas of the rapid step-down in venturi 72, the dust combines back weight increase and falls with the atomizing drop of water to enter into blanking fill 74, conveniently collect the dust.

Referring to fig. 3, a solid-liquid separation chamber 91 is connected to the bottom of the second box 71, a filter box 92 is arranged inside the solid-liquid separation chamber 91, a water storage chamber 93 is arranged outside the filter box 92, the filter box 92 is screwed with the solid-liquid separation chamber 91, and the water supply pipe 82 is communicated with the water storage chamber 93.

Adopt above-mentioned scheme: through setting up solid-liquid separation storehouse 91, filter cartridge 92 and retaining chamber 93, filter cartridge 92 in solid-liquid separation storehouse 91 can separate the water of having absorbed the dust, makes things convenient for reuse.

The working principle of the invention is as follows:

when the exhaust fan 1 is started, industrial waste gas enters the channel 29 through the air inlet 22, the gas is guided through the first guide part 31 on the first guide plate 23 when passing through the channel 29, because the air inlet end at the top of the first through hole 25 is higher than the air outlet end at the top of the first through hole 25, the gas cannot directly enter the first cavity 24, because the weight of dust is higher than that of the gas, the dust falls into the plurality of first through holes 25 through the inclined first guide plate 23 and falls into the guide hopper 51 and the blanking barrel 52 at the bottom, when no dust exists on the filter plate 57, the spring 55 pushes the filter plate 57 to move upwards, the conical part 67 is attached to the fourth barrel 64, along with the fact that the dust continuously falls onto the spherical part 65, the dust presses the spring 55 to shrink, the dust enters the second barrel 62, at the moment, the conical part 67 is separated from the fourth barrel 64, and the dust in the blanking barrel 52 falls from a gap between the fourth barrel 64 and the conical part 67, meanwhile, the spring 55 will reset, so that the filter plate 57 will vibrate to a certain extent, and the dust inside the blanking cylinder 52 can be dredged, the dust on the filter plate 57 will gradually fall down, which is convenient for dust collection, then the gas will enter the second box 71 through the venturi tube 72, while the gas will be instantly depressurized after being accelerated through the venturi tube 72, the atomizer 81 will spray water mist, the water mist will combine with the dust in the gas, at this time, the total weight of the dust will increase, and fall into the filter box 92 at the bottom through the blanking hopper 74, after the solid-liquid separation of the filter box 92, the water will be sprayed into the venturi tube 72 again, at the same time, the gas will enter the electrostatic precipitator 76 through the wind guide tube 75 to be dedusted again, then the gas will enter the second cavity 27 through the wind outlet tube 77, along with the continuous increase of the gas pressure in the second cavity 27, the gas will be accelerated through the second through hole 28 and guided by the second, since the second guide portion 41 is approximately parallel to the second guide plate 26, the exhaust gas discharged from the second through holes 28 flows in the same direction as the exhaust gas, so that the flow velocity of the exhaust gas is increased, and the efficiency of separating dust from the exhaust gas is improved.

In summary, the following steps: this industrial waste gas handles and uses filtration dust collector, through setting up air exhauster 1, preprocessing device, dust collector, atomizer 81, delivery pipe 82, solid-liquid separation storehouse 91, the cooperation of filter cartridge 92 and water storage cavity 93 is used, can carry out multiple mode to the dust in the industrial waste gas and filter the dust removal, can carry out abundant separation to the dust in the industrial waste gas, and can collect the dust after the separation, it is single to the filtration dust removal mode of dust to have solved current industrial waste gas treatment device, the separation efficiency of dust is lower, and can not collect the problem to the gas after the separation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an industrial waste gas handles with filtering dust collector, includes air exhauster (1), is used for the preprocessing device who removes dust for the first time and is used for handling the dust collector of tiny dust, its characterized in that: the pretreatment device comprises a first box body (21), an air inlet (22) arranged on one side of the first box body (21), a first guide plate (23) obliquely arranged in the first box body (21), a first cavity (24) arranged below the first guide plate (23), a first through hole (25) arranged on the first guide plate (23), a second guide plate (26) matched with the first guide plate (23), a second cavity (27) arranged above the second guide plate (26), a second through hole (28) arranged on the second guide plate (26) and a collecting component arranged in the first cavity (24), wherein the first guide plate (23) and the second guide plate (26) are parallel to each other, a channel (29) is formed between the first guide plate (23) and the second guide plate (26), the air inlet (22) is positioned at the bottom end of the channel (29), and the channel (29) is communicated with the first cavity (24) through the first through hole (25), passageway (29) are through second through-hole (28) and second cavity (27) intercommunication, air exhauster (1) and second cavity (27) intercommunication, the inlet end at first through-hole (25) top is higher than the end of giving vent to anger at first through-hole (25) top.

2. The filtering and dust removing device for industrial waste gas treatment according to claim 1, wherein: the top of first baffle (23) is equipped with first guide part (31) with first through-hole (25) matched with, the platelike that first guide part (31) slope set up, first through-hole (25) are including the first hole body (32) that are located the top and with the second hole body (33) that first hole body (32) link to each other, first hole body (32) are the flaring setting.

3. The filtering and dust removing device for industrial waste gas treatment according to claim 1, wherein: the bottom of second baffle (26) is equipped with second guide part (41) with second through-hole (28) matched with, second guide part (41) are the arc that the slope set up, second guide part (41) are partly parallel with second baffle (26), second through-hole (28) include with smooth excessive third hole body (42) of second guide part (41) and with the fourth hole body (43) that third hole body (42) link to each other, fourth hole body (43) are the flaring setting.

4. The filtering and dust removing device for industrial waste gas treatment according to claim 1, wherein: the collecting part comprises a material guide hopper (51) arranged at the top of the first cavity (24), a material falling barrel (52) communicated with the bottom end of the material guide hopper (51), two fixing blocks (53) arranged on the inner wall of the first cavity (24), a guide rod (54) arranged on the fixing blocks (53), a spring (55) arranged on the guide rod (54), a sliding block (56) arranged at the top of the spring (55), a filter plate (57) connected with the two sliding blocks (56) and a connecting rod (58) arranged on the filter plate (57), wherein the connecting rod (58) is partially arranged inside the material falling barrel (52).

5. The filtering and dust removing device for industrial waste gas treatment according to claim 4, wherein: the blanking barrel (52) comprises a first barrel body (61) positioned at the top, a second barrel body (62) arranged at the bottom of the first barrel body (61), a third barrel body (63) arranged at the bottom of the second barrel body (62) and a fourth barrel body (64) arranged at the bottom of the third barrel body (63), wherein the first barrel body (61) and the second barrel body (62) are in a straight barrel shape, the third barrel body (63) is in a hemispherical shape, the diameter of the first barrel body (61) is smaller than that of the second barrel body (62), the fourth barrel body (64) is in a circular truncated cone shape, and the connecting rod (58) comprises a spherical part (65) matched with the third barrel body (63), a connecting part (66) connected with the spherical part (65) and a conical part (67) arranged at the bottom of the connecting part (66) and matched with the fourth barrel body (64).

6. The filtering and dust removing device for industrial waste gas treatment according to claim 1, wherein: the dust removal device comprises a second box body (71), a Venturi tube (72) connected with the first box body (21), a partition plate (73) arranged inside the second box body (71), a blanking hopper (74) arranged at the middle lower part of the second box body (71), an air guide pipe (75) arranged on the partition plate (73), an electrostatic dust collector (76) arranged above the partition plate (73) and an air outlet pipe (77) arranged on the second box body (71), wherein the air outlet pipe (77) is connected with an exhaust fan (1).

7. The filtering and dust removing device for industrial waste gas treatment according to claim 6, wherein: the middle part of venturi (72) is equipped with atomizer (81), the one end of atomizer (81) is connected with delivery pipe (82).

8. The filtering and dust removing device for industrial waste gas treatment according to claim 6, wherein: the bottom of the second box body (71) is connected with a solid-liquid separation bin (91), a filter box (92) is arranged inside the solid-liquid separation bin (91), a water storage cavity (93) is arranged on the outer side of the filter box (92), the filter box (92) is in threaded connection with the solid-liquid separation bin (91), and the water supply pipe (82) is communicated with the water storage cavity (93).