CN109045914B - Long-bag pulse dust collector for waste gas - Google Patents

Abstract

The invention discloses a long-bag pulse dust collector for waste gas, which belongs to the field of pulse dust collectors, has the advantages of improving the filtering effect and further improving the environmental protection performance, and has the technical scheme that: comprises a supporting frame, a dust remover box body, a dust removing ash bucket, an air inlet pipeline, an air outlet pipeline and an air storage tank. One end of the air inlet pipeline close to the dust remover box body is connected with the dust remover box body in a tangent line in the horizontal direction. One end of the air outlet pipeline, which is far away from the dust remover box body, is connected with an exhaust fan driven by a variable frequency motor. The gas phase output end of the exhaust fan is connected to the acid-base waste gas washing tower. The box body of the dust collector is internally provided with a porous ceiling which is horizontally arranged, the porous ceiling separates the box body of the dust collector into a gas purifying chamber and a filtering chamber, and a cloth bag is arranged in the filtering chamber to filter dust-containing waste gas. The invention is also provided with a filter screen, a dry powder deacidification device, a wet type fan, a crushing device and the like so as to improve the filtering effect and further improve the environmental protection performance of the long-bag pulse dust collector. The invention is suitable for dust removal of garbage.

Description

Long-bag pulse dust collector for waste gas

Technical Field

The invention relates to the field of pulse dust collectors, in particular to a long-bag pulse dust collector for waste gas.

Background

The long-bag pulse dust collector belongs to a new generation of pulse bag type dust collection technology, not only has the characteristics of strong dust removal capability, high dust collection efficiency, low emission concentration and the like of the blowing pulse dust collector, but also has the characteristics of stability, reliability, low energy consumption and small occupied area, and is particularly suitable for treating large-air-volume garbage and waste gas.

For the maintenance and improvement of the long-bag pulse dust collector, the focus is generally on the aspects of dew resistance, air leakage resistance, cloth bag filtering area and the like, and finally a good cloth bag filtering effect is achieved, so that the aim of environmental protection is fulfilled. In practical production, some hidden problems are worth paying attention to, for example, whether the gas at the air outlet can meet the environmental protection requirement or not, and the control of the waste gas discharged from the air outlet is also very important.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a long-bag pulse dust collector for waste gas, which has the advantages of further purifying the discharged waste gas and further improving the environmental protection performance.

In order to achieve the purpose, the invention provides the following technical scheme:

a long-bag pulse dust collector for garbage and waste gas comprises a support frame, a dust collector box body arranged on the support frame, a dust removing hopper positioned below the dust collector box body, an air inlet pipeline positioned on one side of the dust collector box body, an air outlet pipeline positioned on the other side of the dust collector box body and an air storage tank arranged at the top or the side surface of the dust collector box body, wherein a porous ceiling is horizontally arranged in the dust collector box body, the porous ceiling separates the dust collector box body into an air purifying chamber positioned at the upper part and a filtering chamber positioned at the lower part, a blowing pipe assembly is arranged in the air purifying chamber, the blowing pipe assembly is communicated with the air storage tank, a plurality of cloth bags are arranged on, the top of the dust remover box body is provided with an access door, a first mounting frame is arranged in the air purifying chamber, a filter screen is erected on the first mounting frame, the interface position of the air outlet pipeline on the dust remover box body is positioned between the filter screen and the top wall of the dust remover box body.

Through adopting above-mentioned technical scheme, waste gas gets into the dust remover box from the intake stack, subsides to the dust remover box below, and from the upper reaches of below and walk, through the filtration dust removal of sack, filterable gas gets into the air-purifying chamber. The blowing pipe assembly performs pulse spraying on the cloth bag at regular intervals to shake off dust on the cloth bag to the dust removing hopper. Through installing the filter screen in the clean air chamber, filter purification to exhaust waste gas makes exhaust waste gas reach the environmental requirement, and then improves dust remover environmental protection performance.

Furthermore, the first mounting frame is in a shape of a Chinese character jing, and the filter screen is divided into a plurality of small blocks and erected on the first mounting frame; and the filter screen is provided with an active carbon filter layer or an SCR denitration catalyst.

Through adopting above-mentioned technical scheme, be convenient for change the filter screen, place active carbon filter layer or SCR denitration catalyst on the filter screen simultaneously, can realize different filtration and catalytic effect.

Furthermore, the dust remover box body comprises an inner shell and an outer shell, and a heat-insulating interlayer is formed between the inner shell and the outer shell.

Through adopting above-mentioned technical scheme, set up the heat preservation spacer sleeve on the dust remover box wall, reduce the temperature and run off, reduce the temperature difference reaction in the dust remover box, for example dewfall etc. and then improve the filter effect.

Furthermore, one end of the air outlet pipeline, which is far away from the dust remover box body, is connected with an exhaust fan with a variable frequency motor.

Through adopting above-mentioned technical scheme, the air exhauster makes the dust remover keep the negative pressure, and inside gas is difficult to excessive.

Further, the gas phase output end of the exhaust fan is connected to the acid-base waste gas washing tower.

Through adopting above-mentioned technical scheme, acid-base waste gas scrubbing tower can carry out acid-base neutralization to the combustion gas for waste gas further satisfies the environmental protection requirement.

Furthermore, a dry powder deacidification device is connected to the air inlet pipeline and comprises a dry powder spraying device arranged on the air inlet pipeline and a dry powder bin arranged on the external ground, and the dry powder spraying device is connected with the dry powder bin.

By adopting the technical scheme, the acid substances in the waste gas are deacidified by adopting the dry powder mainly containing the lime powder, and then the waste gas is pretreated, so that the finally discharged waste gas meets the environmental protection requirement.

Furthermore, one end of the air inlet pipeline, which is close to the dust remover box body, is connected with the dust remover box body in a tangent line in the horizontal direction.

Through adopting above-mentioned technical scheme, waste gas is cyclone formula entering, lets the dust have centrifugal force, and the large granule dust is thrown away more easily and drops.

Furthermore, a wet type fan is connected, an air inlet of the wet type fan is communicated with an air outlet pipeline, an air outlet of the wet type fan is communicated with an air inlet pipeline, a water nozzle is arranged at the air inlet of the wet type fan, and the wet type fan is driven by a motor; and a water seal plate and a swirler are arranged in the dust remover box body.

By adopting the technical scheme, the dust-containing gas enters the box body of the dust remover to rotate under the action of the attraction of the fan along the tangential direction, and large-particle dust falls under the action of centrifugal force and gravity, so that I-level dust collection is realized; the dust-containing gas and the fully atomized water are mixed in a group and enter a wet type fan, and under the action of a fan impeller rotating at a high speed, water mist and dust are violently collided and polymerized, so that fine dust is captured by water, and II-effect dust collection is realized; clean gas and mud pass through the intake stack once more and get into the dust remover box along tangential direction, and mud falls under centrifugal force and gravity action, realizes that III imitates the dust collection.

Furthermore, the dust remover box is equipped with breaker with dust removal ash bucket junction, breaker including setting up the motor at dust remover box outer wall and setting up the broken knife tackle spare in the dust remover box inside, broken knife tackle spare includes the axis of rotation and the blade of dislocation set in the axis of rotation.

Through adopting above-mentioned technical scheme, breaker can carry out the repulverize to the large-scale rubbish granule in the dust removal ash bucket, makes its convenient discharge.

Further, the intake stack is equipped with changeing blade subassembly with dust remover box junction, follows changeing blade subassembly and includes arc blade and mounting bracket, and the mounting bracket includes inner ring, connecting rod and interior ring junction, and the connecting rod welding is at dust remover box inner wall, and the inner ring protrusion sets up, and arc blade welds on a solid fixed ring, and solid fixed ring cup joints on the inner ring.

Through adopting above-mentioned technical scheme, follow and change the blade and rotate along with the air current of intake stack, smash large granule rubbish into the tiny particle to in dust collection and dust exhaust.

In conclusion, the invention has the following beneficial effects:

1. through the arrangement of the activated carbon filter layer or the SCR denitration catalyst, the exhaust gas can be filtered and purified, so that the environment-friendly effect is provided;

2. through air exhauster and acid-base waste gas scrubbing tower setting, can play and form the negative pressure environment and make gaseous be difficult to excessive, carry out acid-base neutralization and make waste gas emission further satisfy the effect of environmental protection requirement.

3. The dry powder deacidification device is arranged, so that the effect of pretreating waste gas to ensure that the discharged waste gas can meet the environmental protection requirement can be achieved;

4. the tangential air inlet, the wet air fan and the water nozzle are arranged, so that a three-effect dust removal effect can be achieved;

5. through the setting of breaker, follow the setting of commentaries on classics blade, can play and be the tiny particle with the large granule breakage to in the effect of gathering dust and dust exhaust.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1;

FIG. 2 is a schematic view of the internal structure of embodiment 1;

FIG. 3 is a schematic structural view mainly showing a first mounting frame and a filter screen in embodiment 1;

FIG. 4 is a schematic view showing the structure of a dry powder spraying device and a dry powder hopper according to embodiment 2;

FIG. 5 is a schematic view of the embodiment 3 mainly used for showing the structure of a wet type fan;

FIG. 6 is a schematic view of the embodiment 3 mainly used for showing the structure of the water nozzle;

FIG. 7 is a schematic structural view mainly illustrating the water seal plate and the cyclone in embodiment 3;

FIG. 8 is a schematic view showing the structure of the crushing apparatus according to example 4;

FIG. 9 is a schematic view showing the structure of the following rotating blade assembly according to example 4;

FIG. 10 is an enlarged view of section A of FIG. 2, showing a first seal;

FIG. 11 is an enlarged view of portion B of FIG. 2, showing the hold-down feature;

FIG. 12 is an enlarged view of the portion C of FIG. 2, showing the structure of the cloth bag;

in the figure, 1, a support frame; 2. a dust collector box body; 3. a dust removal ash bucket; 4. an air inlet pipeline; 5. an air outlet pipeline; 6. a gas storage tank; 7. a perforated ceiling; 8. a gas purifying chamber; 9. a filtering chamber; 10. a jet pipe assembly; 11. a cloth bag; 111. an inner layer; 112. an intermediate layer; 113. an outer layer; 114. a small cloth bag; 115. an elastic thin ring; 12. a first sealing mechanism; 121. a first seal block; 122. a second seal block; 123. a bimodal surface; 124. mountain peak surface; 125. a slope surface; 126. a first groove; 127. a special-shaped sealing gasket; 13. a hold-down mechanism; 131. a compression plate; 132. a compression block; 14. mounting a plate; 15. follow-up rotation of the blade assembly; 151. an arc-shaped blade; 153. an inner ring; 154. a connecting rod; 155. a fixing ring; 16. an exhaust fan; 17. washing the tower with acid and alkali waste gas; 18. an access door; 19. a first mounting frame; 20. a filter screen; 21. an inner shell; 22. a housing; 23. a heat insulation interlayer; 24. a dry powder spraying device; 25. a dry powder bin; 26. a wet type fan; 27. an air inlet; 28. an air outlet; 29. a water nozzle; 30. a water seal plate; 31. a swirler; 32. a motor; 33. a rotating shaft; 34. a blade.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1:

as shown in fig. 1, a long bag pulse dust collector for garbage and waste gas comprises a dust collector box body 2, wherein the dust collector box body 2 is arranged on a support frame 1 standing on the ground. An access door is arranged at the top of the dust remover box body 2. An air inlet pipeline 4 is arranged on one side of the dust remover box body 2, and an air outlet pipeline 5 is arranged on the other side of the dust remover box body 2. A dust removing ash bucket 3 is arranged below the dust remover box body 2 and is used for discharging sediments. An exhaust fan 16 is connected to one end of the air outlet pipeline 5 far away from the dust remover box body 2, negative pressure is formed inside the dust remover box body 2, and gas is prevented from overflowing from the air inlet pipeline 4. Suction fan 16 is preferably a variable frequency motor with adjustable frequency as the suction fan 16 of the drive source. The gas phase output end of the exhaust fan 16 is connected to the acid-base waste gas washing tower 17, and the discharged waste gas is subjected to acid-base neutralization and then discharged into the air.

As shown in fig. 1 and 2, a horizontally arranged perforated ceiling 7 is provided in the dust collector case 2, and the perforated ceiling 7 partitions the dust collector case 2 into an air-purifying chamber 8 at the upper part and a filtering chamber 9 at the lower part. And a blowing pipe assembly is arranged in the air purifying chamber 8, and the blowing pipe assembly comprises an air duct and a plurality of nozzles positioned on the air duct. The top or the side of the dust remover box body 2 is provided with an air storage tank 6. The blowing pipe assembly is communicated with the air storage tank 6, and pulse jet dust removal is carried out on the filter chamber 9 every certain period of time by the blowing pipe assembly.

As shown in fig. 3, a first mounting frame 19 is arranged in the air purifying chamber, a filter screen 20 is erected on the first mounting frame 19, and the interface position of the air outlet pipeline 5 on the dust remover box body 2 is located between the filter screen 20 and the top wall of the dust remover box body 2. The first mounting frame 19 is preferably in a shape of a Chinese character jing, and the filter screen 20 is divided into a plurality of small blocks to be erected on the first mounting frame 19 so as to be conveniently replaced from the access door 18. An active carbon filter layer or an SCR denitration catalyst is laid on the filter screen 20 to meet different filtering and purifying requirements.

As shown in FIG. 2, for heat preservation and insulation, the dust collector case 2 includes an inner case 21 and an outer case 22, and a heat preservation interlayer 23 is formed between the inner case 21 and the outer case 22.

Example 2:

the difference from the embodiment 1 is that: as shown in fig. 4, a dry powder deacidification device is connected to the air inlet duct 4, the dry powder deacidification device includes a dry powder spraying device 24 arranged on the air inlet duct 4 and a dry powder bin 25 arranged on the external ground, and the dry powder spraying device 24 is connected with the dry powder bin 25. The dry powder is preferably lime powder. The lime powder contacts and reacts with the dust-containing waste gas through the dry powder injection device 24 to generate a solid compound, and the solid compound is collected by the dust collector box body 2.

Example 3:

the difference from the embodiment 1 is that: as shown in fig. 5, one end of the air inlet pipe 4 close to the dust collector case 2 is tangentially connected with the dust collector case 2 in the horizontal direction, so that the inlet air becomes tangential inlet air, air enters in a cyclone manner, centrifugal force is generated, and large-particle dust is more easily thrown out and falls off. As shown in fig. 5 and 6, the long bag pulse dust collector is also connected with a wet type fan 26. An air inlet 27 of the wet-type fan 26 is communicated with the air outlet pipeline 5, an air outlet 28 of the wet-type fan 26 is communicated with the air inlet pipeline 4, a water through nozzle 29 is arranged at the air inlet 27 of the wet-type fan 26, and the wet-type fan 26 is driven by a motor 32. As shown in fig. 7, a water sealing plate 30 and a cyclone 31 are arranged in the dust collector box body 2, when clean gas and slurry enter in the tangential direction and pass through the cyclone 31, the clean gas is dehydrated due to centrifugal action and then is discharged from the air outlet pipeline 5, and the slurry falls from the water sealing plate 30 to the cyclone 31 and then continuously falls to the dust removing hopper 3 to be discharged. The above scheme realizes the effect of triple effect dust removal.

Example 4:

the difference from the embodiment 1 is that: as shown in fig. 8 and 9, a crushing device is arranged at the joint of the dust collector box 2 and the dust collection hopper 3, the crushing device comprises a motor 32 arranged on the outer wall of the dust collector box 2 and a crushing knife assembly arranged inside the dust collector box 2, and the crushing knife assembly comprises a rotating shaft 33 and blades 34 arranged on the rotating shaft 33 in a staggered manner. In order to discharge the garbage conveniently from the dust and ash removing hopper 3, when the air inlet pipeline 4 enters the dust remover box body 2, a group of follow-up rotating blade assemblies 15 are additionally arranged and rotate along with the high-flow-rate air at the air inlet pipeline to perform auxiliary crushing on the garbage. The follow-up blade assembly 15 includes an arcuate blade 151 and a mounting bracket. The mounting bracket comprises an inner ring 153 and a connecting rod 154, the connecting rod 154 is connected with the inner ring 153, the connecting rod 154 is welded on the inner wall of the dust remover box body 2, and the inner ring 153 is arranged in a protruding mode. The curved blade 151 is welded to a retaining ring 155, and the retaining ring 155 is sleeved to the inner ring 153. The end of the fixing ring 155 is provided with a limit structure for limiting, and the limit structure can be a baffle plate welded at the end of the inner ring 153. . Through the setting of breaker, follow the setting of commentaries on classics blade, can play and be the tiny particle with the large granule breakage to in the effect of gathering dust and dust exhaust.

The above embodiments may be used in combination, and the manner of use is not limited to the above description. In addition, a further elaboration of example 1 is provided below:

as shown in figures 2 and 10, the inner wall of the dust collector box body 2 is provided with a circle of mounting plates 14 vertical to the inner wall, and the mounting plates and the inner wall are welded. A perforated ceiling 7 is erected on the mounting plate 14. A first sealing mechanism 12 is provided between the mounting plate 14 and the perforated ceiling 7, the first sealing mechanism 12 comprising four first sealing blocks 121 and four second sealing blocks 122. The first sealing block 121 is welded to the edge of the perforated ceiling 7 and the second sealing block 122 is welded to the edge of the mounting plate 14. The first sealing block 121 is M-shaped and the side mounted away from the perforated ceiling 7 is a double M-shaped peak 123. The surface of the second sealing block 122 away from the mounting plate 14 is wave crest shape, and the surface close to the mounting plate 14 is plane. The second seal block 122 includes a first mating portion and a second mating portion. The side of the first matching part far from the mounting plate 14 is a peak surface 124, and is matched with the double peak surface 123 of the first sealing block 121 to form a first heavy seal to block dust from passing through, even if a gap exists, the peak surface 124 of the first matching part and the curve part of the double peak surface 123 of the first sealing block also prolong the dust passing path, and the effect of further blocking is achieved. The side of the second matching portion away from the mounting plate 14 is a slope surface 125, the lowest point of the slope surface 125 is connected with the lowest point of the peak surface 124 of the first matching portion, the highest point of the slope surface 125 of the second matching portion is 1-2 cm higher than the highest point of the peak surface 124 of the first matching portion, and the highest point of the slope surface 125 is also used for intercepting the next part of dust to form a second secondary seal, so that the dust is not easy to overflow.

As shown in fig. 10, a gap is left between the porous ceiling 7 and the inner wall of the dust collector case 2, and a shaped gasket 127, which corresponds to a second seal structure, is installed in the gap. The shaped gasket 127 is preferably a long piece of rubber with a trapezoidal cross-section. One end (wide surface) of the special-shaped sealing gasket 127 is contacted with the inner wall of the dust remover box body 2, a first groove 126 is arranged on the side wall surface of the first sealing block 121 close to the dust remover box body 2, and the other end (narrow surface) of the special-shaped sealing gasket 127 is clamped in the first groove 126 to form a third sealing. When the blowing pipe assembly sprays the cloth bag 11, the porous ceiling 7 is subjected to impact pressure, and the pressure can extrude the special-shaped sealing gasket 127, so that the special-shaped sealing gasket 127 is pressed and deformed, the contact area between the special-shaped sealing gasket 127 and the dust remover box body 2 and the porous ceiling 7 is increased, and a good sealing effect is achieved.

As shown in fig. 2 and 11, a pressing mechanism 13 perpendicular to the inner wall of the dust collector case 2 is provided on the inner wall of the dust collector case 2 above the porous ceiling 7. The pressing mechanism 13 includes a pressing plate 131 and a pressing block 132. The pressing plate 131 is located above the perforated ceiling 7 and is mounted on the inner wall of the dust collector case 2 by a hinge. The length of the single pressing plate 131 is smaller than the length of the side of the single side of the dust collector box body 2, so that the pressing plate 131 can be conveniently opened to hang the porous ceiling 7. The pressing blocks 132 are located above the two ends of the pressing plate 131 and are hinged to the inner wall of the dust collector box body 2, and play a role in pressing the closed pressing plate 131. The compression plate 131 and the compression block 132 work together to make the porous ceiling 7 not easily rise with the airflow to the air outlet channel.

As shown in fig. 2 and 12, a plurality of cloth bags 11 are mounted on the porous mounting plate 14, and the cloth bags 11 vertically fall into the filtering chamber 9 to filter dust. The cloth bag 11 adopted by the embodiment comprises three layers: the inner layer 111, the middle layer 112 and the outer layer 113, and the three layers of cloth bags increase the filtering area of the cloth bags, thereby improving the filtering effect in the filtering chamber. The middle layer 112 is composed of at least two sections of small cloth bags 114, which can be determined according to the length of the cloth bag 11. The inner layer 111 and the outer layer 113 are respectively formed by wrapping the middle layer 112 with filter cloth from the bottom of the middle layer 112. The inner layer 111 and the outer layer 113 are arranged outside the middle layer 112 in a blocking mode, and dust is prevented from being accumulated at the joint of the middle layer 112. The bottom of the filter cloth is provided with openings, and if dust enters the middle layer 112 through the inner layer 111 and the outer layer 113 of the cloth bag 11, the dust can be discharged through the openings. The ends of the inner 111, intermediate 112 and outer 113 layers adjacent the perforated ceiling 7 are sewn to one another to form a closed end. The small cloth bag 114 comprises a cloth section and an elastic thin ring 115, one end of the cloth section is wrapped by the elastic thin ring 115 and is connected with the elastic thin ring 115 in a sewing mode, and the other end of the cloth bag 11 is connected with the elastic thin ring 115 of the last small cloth bag 114 in a sewing mode. The elastic thin ring 115 is preferably a metal elastic member to resist acid and alkali corrosion, and may be a circle ring or a half circle ring, which can be used to open the cloth bag 11 to a certain extent. The metal elastic part supports the small cloth bag 114, and further supports the whole three layers of cloth bags 11, so that the cloth bags 11 far away from the blowing pipe assembly cannot be adsorbed together, and dust can be separated conveniently.

The specific implementation process comprises the following steps: the dust-containing waste gas garbage enters from the air inlet pipeline 4 under the action of the variable-frequency exhaust fan 16, and the following rotating blade assembly 15 at the air inlet pipeline 4 crushes the large-particle garbage carried by the dust-containing waste gas garbage. Garbage particles are precipitated in the dust removing hopper 3, dust-containing waste gas upwards passes through the filter chamber 9 from the dust removing hopper 3, dust is intercepted on the surface of the cloth bag 11, and gas passes through the cloth bag 11 and is discharged outside after passing through the gas purifying chamber. The blowing pipe assembly blows the cloth bag 11 at regular intervals to perform ash removal.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (9)

1. A long-bag pulse dust collector for garbage and waste gas comprises a support frame (1), a dust collector box body (2) arranged on the support frame (1), a dust removing ash bucket (3) positioned below the dust collector box body (2), an air inlet pipeline (4) positioned on one side of the dust collector box body (2), an air outlet pipeline (5) positioned on the other side of the dust collector box body (2), and an air storage tank (6) arranged at the top or the side of the dust collector box body (2), wherein a porous ceiling (7) is horizontally arranged in the dust collector box body (2), the dust collector box body (2) is separated into an air purifying chamber (8) positioned at the upper part and a filtering chamber (9) positioned at the lower part by the porous ceiling (7), a blowing pipe assembly is arranged in the air purifying chamber (8), the blowing pipe assembly is communicated with the air storage tank (6), a plurality of cloth bags (11) are arranged on the porous ceiling (7), and, the top of the dust remover box body (2) is provided with an access door, which is characterized in that: a first mounting frame (19) is arranged in the air purifying chamber (8), a filter screen (20) is erected on the first mounting frame (19), and the interface position of an air outlet pipeline (5) on the dust remover box body (2) is positioned between the filter screen (20) and the top wall of the dust remover box body (2);

the cloth bag (11) comprises three layers: an inner layer (111), an intermediate layer (112), and an outer layer (113);

the middle layer (112) is composed of at least two sections of small cloth bags (114);

the small cloth bag (114) comprises a cloth section and an elastic thin ring (115), one end of the cloth section is wrapped by the elastic thin ring (115) and is connected with the elastic thin ring (115) in a sewing mode, and the other end of the cloth section is connected with the elastic thin ring (115) end of the last small cloth bag (114) in a sewing mode;

the inner layer (111) and the outer layer (113) are respectively formed by wrapping the middle layer (112) by filter cloth from the bottom of the middle layer (112), the inner layer (111) and the outer layer (113) are arranged outside the middle layer (112) in a blocking way, and the bottom of the filter cloth is provided with an opening;

a crushing device is arranged at the joint of the dust remover box body (2) and the dust removing ash bucket (3);

air inlet pipeline (4) and dust remover box (2) junction are equipped with changeing blade subassembly (15), with changeing blade subassembly (15) including arc blade (151) and mounting bracket, the mounting bracket includes inner ring (153), connecting rod (154) are connected with inner ring (153), connecting rod (154) welding is at dust remover box (2) inner wall, inner ring (153) protrusion sets up, arc blade (151) welding is on a solid fixed ring (155), gu fixed ring (155) cup joints on inner ring (153).

2. The long bag pulse dust collector for waste gas of claim 1, wherein: the first mounting frame (19) is in a shape of Chinese character jing, and the filter screen (20) is divided into a plurality of small blocks and erected on the first mounting frame (19); and an active carbon filter layer or an SCR denitration catalyst is arranged on the filter screen (20).

3. The long bag pulse dust collector for waste gas of claim 2, wherein: the dust remover box body (2) comprises an inner shell (21) and an outer shell (22), and a heat-insulating interlayer (23) is formed between the inner shell (21) and the outer shell (22).

4. The long bag pulse dust collector for waste gas according to any one of claims 1 to 3, characterized in that: one end of the air outlet pipeline (5) far away from the dust remover box body (2) is connected with an exhaust fan (16) with a variable frequency motor.

5. The long bag pulse dust collector for waste gas of claim 4, wherein: the gas phase output end of the exhaust fan (16) is connected to the acid-base waste gas washing tower (17).

6. The long bag pulse dust collector for waste gas according to any one of claims 1 to 3, characterized in that: the dry powder deacidification device is connected to the air inlet pipeline (4) and comprises a dry powder spraying device (24) arranged on the air inlet pipeline (4) and a dry powder bin (25) arranged on the outer ground, and the dry powder spraying device (24) is connected with the dry powder bin (25).

7. The long bag pulse dust collector for waste gas according to any one of claims 1 to 3, characterized in that: one end of the air inlet pipeline (4) close to the dust remover box body (2) is connected with the dust remover box body (2) in a tangent line in the horizontal direction.

8. The long bag pulse dust collector for garbage exhaust gas according to claim 7, characterized in that: the air conditioner is also connected with a wet type fan (26), an air inlet (27) of the wet type fan (26) is communicated with the air outlet pipeline (5), an air outlet (28) of the wet type fan (26) is communicated with the air inlet pipeline (4), a water nozzle (29) is arranged at the air inlet (27) of the wet type fan (26), and the wet type fan (26) is driven by a motor (32); a water seal plate (30) and a swirler (31) are arranged in the dust remover box body (2).

9. The long bag pulse dust collector for waste gas of claim 1, wherein: the crushing device comprises a motor (32) arranged on the outer wall of the dust remover box body (2) and a crushing cutter assembly arranged inside the dust remover box body (2), wherein the crushing cutter assembly comprises a rotating shaft (33) and blades (34) arranged on the rotating shaft (33) in a staggered mode.

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