CN215195848U - Pipeline dust collector and gas processing system - Google Patents

Abstract

The application provides a pipeline dust collector and gas processing system, pipeline dust collector includes a jar body, intake pipe, first return bend and outlet duct. The outlet duct is arranged at one end of the tank body in a sealing way and communicated with the inside of the tank body. The air inlet pipe is arranged at the other end of the tank body in a sealing way and is communicated with the inside of the tank body. The first bent pipe is positioned in the tank body, one end of the first bent pipe is connected with the air inlet pipe, and the other end of the first bent pipe is bent towards the peripheral wall of the tank body. The gas treatment system comprises a pretreatment device for treating the gas containing the silane, the pipeline dust removal device and a plant treatment end for treating the gas discharged from the pipeline dust removal device. The pretreatment device is communicated with the air inlet pipe through a pipeline, the air outlet pipe is communicated with the plant treatment end through a pipeline, and the pipeline dust removal device is close to the pretreatment device. Through above-mentioned technical means, effectively remove dust and remove water smoke to the flue gas of passing through pipeline dust collector, can also avoid dust and water smoke to condense in preprocessing device to the pipeline between the house service processing end, reduce the risk that the pipeline blockked up.

Description

Pipeline dust collector and gas processing system

Technical Field

The application relates to the field of purification and dust removal, in particular to a pipeline dust removal device and a gas treatment system.

Background

Silane is used in the solar cell coating process section due to process requirements, and the combustion product contains a large amount of silicon dioxide dust. At present, the common treatment mode for the redundant silane is that a vacuum pump generates negative pressure to suck out the redundant silane, the redundant silane is combusted and converted into tail gas containing silicon dioxide and other substances in a pretreatment section, the tail gas is conveyed to a plant service end through a pipeline to be further treated, and the tail gas is discharged into the atmosphere after reaching the standard.

In actual production, the pretreatment section is usually located in a production workshop, the plant end is usually located in an exhaust gas treatment workshop, and the two workshops are different. Therefore, the exchange of water and gas between the plant and the production workshop is often realized through a complex pipeline with a long path. In the process that the tail gas discharged after passing through the pretreatment section is conveyed to a plant service end through a pipeline, dust and water mist such as silicon dioxide contained in the tail gas can be coagulated and accumulated in the pipeline to form muddy water-like substances, so that the pipeline is blocked, and normal production is influenced. Meanwhile, the cleaning of the blocked pipeline causes great trouble to the maintenance department.

SUMMERY OF THE UTILITY MODEL

A first object of the present application is to provide a duct dust removing apparatus which can effectively remove dust and water mist in a gas.

A second object of the present application is to provide a gas treatment system that reduces the risk of plugging the lines from the pre-treatment device to the plant end.

In order to achieve the purpose, the following technical means are adopted in the application:

the application provides a pipeline dust collector, including a jar body, intake pipe, first return bend and outlet duct. The air outlet pipe is hermetically arranged at one end of the tank body and communicated with the inside of the tank body. The air inlet pipe is arranged at the other end of the tank body in a sealing way and is communicated with the inside of the tank body. The first bent pipe is positioned in the tank body, one end of the first bent pipe is connected with the air inlet pipe, and the other end of the first bent pipe is bent towards the peripheral wall of the tank body.

The flue gas that contains dust and water smoke passes through the intake pipe in proper order and gets into jar internal portion and the perisporium of the jar body of direction with the first return bend of intake-tube connection, makes partial dust and water smoke in the flue gas adhere to the perisporium, and along with the continuous entering of flue gas, the dust and the water smoke that adhere to the perisporium increase gradually and the landing is piled up in the tank bottoms, realizes the preliminary getting rid of dust and flue gas. And in the process that the dust and the water mist which are not attached to the peripheral wall flow to the air outlet pipe, the dust and the water mist are continuously fused, wherein part of the dust and the water mist with larger quality are settled at the bottom of the tank under the action of gravity, so that the secondary removal of the dust and the water mist is realized, and the effect of effectively removing dust and the water mist is achieved.

Further, the first elbow is a 45-degree elbow. The dust and water mist in the flue gas can be reduced, the attachment amount of the inner wall of the bent part of the first bent pipe is reduced, the pipe loss is reduced while the flue gas is effectively guided to the peripheral wall, the flow speed of the flue gas guided to the peripheral wall is ensured, and the dust and the water mist in the flue gas are favorably attached to the peripheral wall of the tank body.

Furthermore, one end of the first bent pipe close to the peripheral wall is 65 mm-135 mm away from the peripheral wall horizontally. The velocity of flow when can making the flue gas direction perisporium is comparatively reasonable, increases the area of contact of flue gas and perisporium simultaneously, makes dust and water smoke in the flue gas can attach to the perisporium more effectively, strengthens preliminary removal effect.

Further, the tank body is cylindrical, and the ratio of the inner diameter of the tank body to the inner diameter of the first bent pipe is (2.5-3): 1. the internal diameter of the tank body is larger than the internal diameter of the first elbow pipe, the internal volume of the tank body is far larger than the internal volume of the first elbow pipe, so that after the smoke guided to the peripheral wall rebounds, the smoke speed is rapidly reduced, the flowing time of the smoke in the tank body is further prolonged, and secondary removal of dust and water mist in the smoke is facilitated.

Further, the pipeline dust collector still includes the packing layer, and the packing layer sets up in jar internal portion, and first return bend and outlet duct are located the both sides of packing layer respectively.

The flue gas is at the in-process that flows to the outlet duct, flows through the packing layer when carrying out the dust and the water smoke secondary and get rid of, and partial dust and water smoke in the flue gas are attached to the packing layer (including the quality less and can't get rid of because partial dust and the water smoke of gravity self-settling), further get rid of the dust in the flue gas and the water smoke.

Further, pipeline dust collector still includes the side pipeline that is located between packing layer and the intake pipe, and the side pipeline sets up in jar external portion, and one end is fixed in the perisporium and with jar internal portion intercommunication, and the other end sealing cover has the transparent window of detachable.

In the process of flue gas flowing through the dust removal device, technicians can observe the dust and water mist removal condition in the tank body through the transparent window. When the device is used for a period of time or is maintained normally, the transparent window is detached, then a dust suction pipe or other cleaning tools of the dust collector stretch into the tank body between the packing layer and the air inlet pipe from the side pipeline, and most of dust and water mist accumulated in the tank body, such as the inner wall of the side pipeline, one side of the packing layer close to the air inlet pipe, the bottom of the tank body and the like, are removed, so that the self cleaning of the dust removal device is realized.

Furthermore, the tank body is vertical, and the pipeline dust removal device further comprises a bracket arranged on the inner wall of the tank body and a support net placed on the bracket. The circumferential surface of the air inlet pipe packing layer is contacted with the inner wall of the tank body, and the packing layer is carried on the supporting net.

When the air pipe connected with the air inlet pipe in the existing pipeline is in the vertical direction, the tank body is vertically installed. In order to facilitate the arrangement of the packing layer, the inner wall of the tank body is provided with a bracket, a support net is arranged on the bracket, the packing layer is supported on the support net, and meanwhile, the peripheral surface of the packing layer is in contact with the inside of the tank body, so that the transverse section of the packing layer is the largest, and dust and water mist in smoke can be attached to the packing layer as much as possible.

Furthermore, the tank body is horizontal, the air inlet pipe and the air outlet pipe are located in the horizontal direction, the pipeline dust removal device further comprises a partition plate, and the peripheral surface of the packing layer and the inner wall of the tank body are supported and arranged at intervals through the partition plate.

When the air pipe connected with the air inlet pipe in the existing pipeline is in the horizontal direction, the tank body is horizontally installed, and the air inlet pipe and the air outlet pipe are located in the horizontal direction. The baffle not only supports the packing layer and makes the packing layer can set up in jar internal portion, can also block the jar body lower part between intake pipe and baffle with the dust and the water smoke that subside, and the dust and the water smoke that subside can not get into the packing layer, avoid influencing the effect that dust and water smoke are attached to the packing layer.

Further, the pipeline dust collector still includes the second return bend, and the second return bend is located jar internal portion, and the outlet duct is connected to one end, and the other end is crooked towards the perisporium.

The tank body is horizontally arranged, the second bent pipe is additionally arranged at one end of the air outlet pipe, the flowing time and the flowing path of the flue gas between the packing layer and the air outlet pipe can be increased, and the fusion and deposition of residual dust and water mist in the flue gas are facilitated.

The present application further provides a gas treatment system suitable for treating gas generated during the production of solar cells. The gas treatment system comprises a pretreatment device for treating gas containing silane, the pipeline dust removal device provided by the application and a plant service treatment end for treating gas discharged from the pipeline dust removal device. The pretreatment device is communicated with an air inlet pipe of the pipeline dust removal device through a pipeline, an air outlet pipe of the pipeline dust removal device is communicated with a plant treatment end through a pipeline, and the pipeline dust removal device is close to the pretreatment device.

After silane is treated by the pretreatment device, the generated flue gas contains silicon dioxide dust and water mist, the flue gas flows into the pipeline dust removal device through the pipeline, the dust and the water mist in the flue gas are effectively removed in the process of flowing through the pipeline dust removal device, and the gas discharged by the dust removal device flows into a plant treatment end through the pipeline for final treatment. The pipeline dust collector is close to the pretreatment device and can be used for effectively removing dust and water mist in the flue gas as soon as possible, the dust and the water mist of the gas flowing out of the pipeline dust collector are reduced, the dust and the water mist are prevented from being condensed in a pipeline between the pretreatment device and a plant service treatment end, and the risk of pipeline blockage is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts and also belong to the protection scope of the present application.

FIG. 1 is a schematic external view of a first structure of a duct dust collector in an embodiment of the present application;

FIG. 2 is a schematic internal view of a first structure of a duct dust collector in the embodiment of the present application;

FIG. 3 is a schematic structural diagram of a bracket and a supporting net of the pipe dust removing device in the embodiment of the present application;

FIG. 4 is an external view of a second structure of the duct dust removing device in the embodiment of the present application;

FIG. 5 is a schematic internal view of a second structure of the duct dust collector in the embodiment of the present application;

FIG. 6 is a schematic illustration of the installation of the gas treatment system in an embodiment of the present application.

Icon: 100-a pipeline dust removal device; 110-an air inlet pipe; 120-tank body; 121-a peripheral wall; 130-an air outlet pipe; 140-a first bend; 150-a filler layer; 160-side tube; 170-transparent window; 180-a bracket; 190-a support net; 200-a separator; 210-a second bend; 300-a pre-treatment device; 400-the factory service processing end.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Fig. 1 is a schematic external view of a first structure of a duct dust collector 100 in an embodiment of the present application, and fig. 2 is a schematic internal view of the first structure of the duct dust collector 100 in the embodiment of the present application. Referring to fig. 1 and 2, the present embodiment provides a duct dust removing device 100, which includes an air inlet pipe 110, a tank 120, an air outlet pipe 130, and a first bent pipe 140. The can body 120 is cylindrical, and both end faces of the can body 120 are detachably, hermetically and fixedly connected with the circumferential wall 121 of the can body 120 by clips, respectively.

In other embodiments, the can 120 may be square, and both end surfaces of the can 120 and the peripheral wall 121 of the can may be integrally formed.

When the direction of the air pipe connected with the air inlet pipe 110 in the existing pipeline is vertical upwards, the tank 120 is vertically installed, the air outlet pipe 130 is hermetically arranged at the upper end of the tank 120 and communicated with the inside of the tank 120, and the air inlet pipe 110 is hermetically arranged at the lower end of the tank 120 and communicated with the inside of the tank 120. The first elbow 140 is located inside the tank 120, one end of the first elbow is connected to the inlet pipe 110, and the other end of the first elbow 140 is bent towards the peripheral wall 121 of the tank, and the first elbow 140 is a 45-degree elbow.

The flue gas containing dust and water mist sequentially passes through the air inlet pipe 110 and the first bent pipe 140 of the 45-degree elbow connected with the air inlet pipe 110 to enter the inner part of the tank body 120 and is guided to the peripheral wall 121 of the tank body, so that the attachment amount of the dust and the water mist in the flue gas on the inner wall of the bent part of the first bent pipe 140 is reduced, the pipe loss of the flue gas is reduced while the flue gas is effectively guided to the peripheral wall 121, the flow velocity of the flue gas is maintained, and the dust and the water mist in the flue gas can be effectively attached to the peripheral wall 121. Along with the continuous entering of flue gas, the dust and the water smoke attached to the peripheral wall 121 increase and slide and accumulate at the bottom of the tank, so that the primary removal of the dust and the flue gas in the flue gas is realized. Simultaneously, the dust and the water smoke that do not adhere to perisporium 121 in the flue gas are at the in-process of flow direction outlet duct 130, and dust and water smoke constantly fuse, and the great dust of partial quality and water smoke can be subsided in the tank bottoms because of the action of gravity, and then carry out the secondary to dust and water smoke and get rid of, reach the effect that effectively removes dust and remove water smoke. The air inlet pipe 110 and the air outlet pipe 130 are arranged up and down oppositely, so that the time and the path of the smoke flowing in the tank body 120 are increased, and the secondary removal effect is further enhanced.

With continued reference to fig. 1 and 2, to further ensure the dust and mist to be effectively attached to the peripheral wall 121, the horizontal distance between one end of the first bent pipe 140 close to the peripheral wall 121 and the peripheral wall 121 is set to 65 mm-135 mm. The velocity of flow when can making the flue gas direction perisporium 121 is comparatively reasonable, increases the area of contact of flue gas and perisporium 121 simultaneously, makes dust and water smoke in the flue gas can attach to perisporium 121 more effectively, and the reinforcing is tentatively got rid of the effect.

After the smoke is guided to the peripheral wall 121 to remove the primary dust and the water mist, the smoke rebounds to flow into the tank 120, and in order to improve the secondary dust and water mist removing effect in the smoke, the ratio of the inner diameter of the tank 120 to the inner diameter of the first bent pipe 140 is set to be (2.5-3): 1. after the flue gas rebounds into the tank body 120, the volume inside the tank body 120 is far larger than that inside the first bent pipe 140, the speed of the flue gas can be rapidly reduced, the flowing time of the flue gas in the tank body 120 is prolonged, and the secondary removal effect of dust and water mist in the flue gas is further improved.

Fig. 3 is a schematic structural diagram of the bracket 180 and the supporting net 190 in the embodiment. Referring to fig. 1-3, when the tank 120 is vertically installed for use, in order to further remove dust and mist in the flue gas, a packing layer 150 is further disposed inside the tank 120, and the packing layer 150 is a pall ring. In order to facilitate the arrangement of the packing layer 150, the dust collector 100 further comprises a bracket 180 arranged on the inner wall of the tank body 120 and a support net 190 placed on the bracket 180, the packing layer 150 is supported on the support net 190, and simultaneously, the circumferential surface of the packing layer 150 is in contact with the inner wall of the tank body 120, so that the transverse section of the packing layer 150 is maximized, the flue gas flows through the packing layer 150 in the process of flowing to the air outlet pipe 130 and secondarily removing dust and water mist, and the dust and the water mist in the flue gas can be attached to the packing layer 150 as much as possible. The portion attached to the filler layer 150 includes a portion of dust and mist having a small mass and not settling by itself.

In other embodiments, packing layer 150 may also use a stepped ring, a rolled ring, or a mesh corrugated packing, among others.

Referring to fig. 1 to 5, after the duct dust removing apparatus 100 is used for a period of time and a certain amount of dust and mist are accumulated inside, the clamp may be loosened to detach the end surface of the tank 120, so as to remove the dust and mist accumulated inside the tank 120.

However, frequent disassembly involves the risk of affecting the airtightness of the device, and the disassembly of the end face after the device is inserted into the duct involves certain difficulties (there are space or duct restrictions). In order to conveniently remove dust and water mist accumulated in the tank 120, the duct dust removing device 100 is further provided with a side duct 160 located between the filler layer 150 and the air inlet pipe 110, the side duct 160 is arranged outside the tank 120, one end of the side duct 160 is fixed on the peripheral wall 121 and is communicated with the inside of the tank 120, and the other end of the side duct is covered with a detachable transparent window 170 in a sealing manner. A technician observes the removal condition of dust and water mist in the tank body 120 through the transparent window 170 to determine the cleaning time, when the cleaning time or normal maintenance is reached, the transparent window 170 is detached, a dust suction pipe or other cleaning tools of a dust collector extend into the tank body 120 between the packing layer 150 and the air inlet pipe 110 from the side pipeline 160, and most of the dust and water mist accumulated on the inner wall of the side pipeline 160, the lower packing layer 150, the bracket 180, the support net 190 and the tank bottom are removed, so that the cleaning of the dust collector is realized.

In order to more conveniently clean the dust removing device and discharge dust and mist settled at the bottom of the tank, the pipe dust removing device 100 further includes a drain pipe which can be opened and closed, and the drain pipe is disposed below the tank 120 and is communicated with the inside of the tank 120. After the dust removal device is used for a period of time, the blow-off pipe is opened, dust and water mist settled at the bottom of the tank are discharged from the blow-off pipe, and then the blow-off pipe is closed. In the sewage discharge process, production does not need to be suspended, and the production time is prolonged.

Fig. 4 is an external schematic view of a second structure of the duct dust removing device 100 in the embodiment of the present application, and fig. 5 is an internal schematic view of the second structure of the duct dust removing device 100 in the embodiment of the present application. Referring to fig. 4 and 5, in other embodiments, the air pipe connected to the air inlet pipe 110 in the existing pipeline is in a horizontal direction, and the tank 120 may also be installed horizontally. The air inlet pipe 110 is arranged at the left end of the tank body 120, the air outlet pipe 130 is arranged at the right end of the tank body 120, and the air inlet pipe 110 and the air outlet pipe 130 are positioned in the horizontal direction. In this case, the pipe dust removing apparatus 100 further includes a partition 200 and a second bent pipe 210, and the circumferential surface of the packing layer 150 and the inner wall of the tank 120 are supported by the partition 200 and spaced apart from each other. The second bent pipe 210 is located inside the tank 120, and has one end connected to the outlet pipe 130 and the other end bent toward the peripheral wall 121 of the tank.

After the flue gas containing dust and mist is guided to the peripheral wall 121 through the first bent pipe 140 to primarily remove the dust and mist, the flue gas flows through the packing layer 150 while being secondarily removed, and then is discharged out of the dust removing device through the second bent pipe 210 and the outlet pipe 130 in sequence.

The dust and the water mist which are primarily removed and secondarily removed settle to the bottom of the tank, the partition board 200 not only supports the packing layer 150 to enable the packing layer 150 to be arranged inside the tank body 120, but also can separate the settled dust and the water mist at the bottom of the tank between the air inlet pipe 110 and the partition board 200, the settled dust and the water mist do not enter the packing layer 150, and the effect that the dust and the water mist are attached to the packing layer 150 is avoided being influenced.

The second bent pipe 210 increases the flowing time and path of the flue gas between the packing layer 150 and the outlet pipe 130, and is beneficial to the fusion and deposition of residual dust and water mist in the flue gas.

FIG. 6 is a schematic illustration of the installation of the gas treatment system in an embodiment of the present application. Referring to fig. 6, the present application further provides a gas processing system for processing gas generated during the production of solar cells. The gas treatment system includes a pre-treatment device 300, a plant end 400, and a duct dust removal device 100 as provided herein. The pretreatment device 300 is used for treating gas containing silane, and the plant treatment terminal 400 is used for treating tail gas discharged from the pipeline dust removal device 100. The pre-treatment device 300 is communicated with the air inlet pipe 110 of the pipeline dust removal device through a pipeline, the air outlet pipe 130 of the pipeline dust removal device is communicated with the plant treatment end 400 through a pipeline, and the pipeline dust removal device 100 is close to the pre-treatment device 300.

In the solar cell film coating process section, the excess silane is combusted by the pretreatment device 300, and the flue gas generated by the treatment contains a large amount of silicon dioxide dust and water mist. The exhaust pipe of the pretreatment device 300 is in sealed communication with the inlet pipe 110 of the duct dust removal device through a duct, and the outlet pipe 130 of the duct dust removal device is also in sealed communication with the inlet of the plant treatment end 400 through a duct, so as to form a pipeline from the pretreatment device 300 to the plant treatment end 400. The flue gas treated by the pretreatment device 300 sequentially passes through the exhaust pipe of the pretreatment device 300, the pipeline communicating the exhaust pipe of the pretreatment device 300 with the exhaust pipe 130, the air inlet pipe 110 and the first bent pipe 140, enters the pipeline dust removal device 100, dust and water mist in the flue gas are effectively removed in the process of flowing through the pipeline dust removal device 100, and then the flue gas is discharged through the exhaust pipe 130, discharged gas (the gas contains ammonia gas, a small amount of silicon dioxide and other substances) flows to the plant treatment end 400 through the pipeline communicating the exhaust pipe 130 with the air inlet of the plant treatment end 400 and enters the plant treatment end 400 for final treatment, and the discharged gas reaches the discharge standard and then is discharged. The pipeline dust removal device 100 is installed close to the pretreatment device 300, so that dust and water mist in the flue gas can be effectively removed as soon as possible, the dust and the water mist of the gas flowing out of the pipeline dust removal device 100 are reduced, the dust and the water mist are prevented from being condensed in a pipeline between the pretreatment device 300 and the plant treatment end 400, and the risk of pipeline blockage is reduced.

One or more of the above-described pipe dust removing devices 100 may be installed in a pipeline between the pretreatment apparatus 300 and the plant treatment end 400. When a plurality of the above pipe dust removing devices 100 are installed, the risk of clogging of the pipes is further reduced.

One or/and combination of a plurality of technical schemes in the embodiment of the application has the following beneficial effects:

1. the first bent pipe 140 guides the flue gas to the peripheral wall 121 of the tank body 120, so that part of dust and water mist in the flue gas is attached to the peripheral wall 121, and along with the continuous entering of the flue gas, the dust and the water mist attached to the peripheral wall 121 gradually increase and slide down and accumulate at the bottom of the tank, thereby realizing the primary removal of the dust and the flue gas. In the process that the dust and the water mist which are not attached to the peripheral wall 121 flow to the gas outlet pipe 130, the dust and the water mist are continuously fused, wherein part of the dust and the water mist with larger mass are settled at the bottom of the tank under the action of gravity, so that the secondary removal of the dust and the water mist is realized, and the effect of effectively removing dust and the water mist is achieved.

2. The first bent pipe 140 is a 45-degree elbow, so that the attachment amount of dust and water mist in the flue gas on the inner wall of the bent part of the first bent pipe 140 is reduced, the pipe loss is reduced while the flue gas is effectively guided to the peripheral wall 121, the flow velocity of the flue gas guided to the peripheral wall 121 is ensured, and the dust and the water mist in the flue gas are favorably attached to the peripheral wall 121 of the tank body 120.

3. The horizontal distance between one end of the first bent pipe 140 close to the peripheral wall 121 and the peripheral wall 121 is 65 mm-135 mm, so that the flow velocity of the smoke when the smoke is guided to the peripheral wall 121 is reasonable, the contact area between the smoke and the peripheral wall 121 is increased, the dust and the water mist in the smoke can be more effectively attached to the peripheral wall 121, and the primary removing effect is enhanced.

4. The inner diameter of the tank body 120 is larger than the inner diameter of the first elbow pipe 140, and the inner volume of the tank body 120 is much larger than the inner volume of the first elbow pipe 140, so that after the flue gas guided to the peripheral wall 121 rebounds, the flue gas speed is rapidly reduced, the flowing time of the flue gas in the tank body 120 is prolonged, and secondary removal of dust and water mist in the flue gas is facilitated.

5. The technician can observe the dust and mist removal inside the can 120 through the transparent window 170. When the device is used for a period of time or maintained normally, the transparent window 170 is detached, and a cleaning tool extends into the tank body 120 between the packing layer 150 and the air inlet pipe 110 from the side pipeline 160, so that most of dust and water mist accumulated in the tank body 120 are removed, and the dust removal device is cleaned.

6. And a packing layer 150 is arranged to further remove dust and water mist in the flue gas.

7. The setting of blow off pipe can be discharged dust and water smoke that subsides in the tank bottoms, later closes the blow off pipe again, and dust collector is clean more convenient, need not pause production when clean simultaneously, extension production time.

8. When the tank 120 is vertically installed, the bracket 180 and the support net 190 placed on the bracket 180 facilitate the arrangement of the packing layer 150, and simultaneously, the circumferential surface of the packing layer 150 is in contact with the inside of the tank 120, so that the transverse section of the packing layer 150 is maximized, and dust and water mist in the flue gas can be attached to the packing layer 150 as much as possible.

9. When the tank 120 is horizontally installed, the partition board 200 not only supports the packing layer 150 so that the packing layer 150 can be disposed inside the tank 120, but also blocks the settled dust and mist at the lower portion of the tank 120 between the air inlet pipe 110 and the partition board 200, so that the settled dust and mist do not enter the packing layer 150, thereby preventing the dust and mist from being attached to the packing layer 150.

10. The second bent pipe 210 increases the flowing time and the flowing path of the flue gas between the packing layer 150 and the outlet pipe 130, and is beneficial to the fusion and deposition of residual dust and water mist in the flue gas.

11. The pipeline dust removal device 100 is installed close to the pretreatment device 300, so that dust and water mist in the flue gas can be effectively removed as soon as possible, the dust and the water mist of the gas flowing out of the pipeline dust removal device 100 are reduced, the dust and the water mist are prevented from being condensed in a pipeline between the pretreatment device 300 and the plant treatment end 400, and the risk of pipeline blockage is reduced.

The above description is only a few examples of the present application and is not intended to limit the present application, and various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A pipeline dust removal device is characterized by comprising a tank body, an air inlet pipe, a first bent pipe and an air outlet pipe; the air outlet pipe is hermetically arranged at one end of the tank body and communicated with the inside of the tank body; the air inlet pipe is hermetically arranged at the other end of the tank body and is communicated with the inside of the tank body; the first bent pipe is positioned in the tank body, one end of the first bent pipe is connected with the air inlet pipe, and the other end of the first bent pipe is bent towards the peripheral wall of the tank body.

2. The duct dust collector according to claim 1, wherein the first bend is a 45 ° bend.

3. The duct dust collector according to claim 1, wherein the horizontal distance between one end of the first bent pipe close to the peripheral wall and the peripheral wall is 65 mm-134 mm.

4. The pipe dust collector according to claim 1, wherein the tank body is cylindrical, and the ratio of the inner diameter of the tank body to the inner diameter of the first elbow pipe is (2.5-3): 1.

5. the pipeline dust removing device according to any one of claims 1 to 4, further comprising a packing layer, wherein the packing layer is arranged inside the tank body, and the first bent pipe and the air outlet pipe are respectively positioned on two sides of the packing layer.

6. The pipeline dust removal device of claim 5, further comprising a side pipeline positioned between the packing layer and the air inlet pipe, wherein the side pipeline is arranged outside the tank body, one end of the side pipeline is fixed on the peripheral wall and communicated with the inside of the tank body, and the other end of the side pipeline is covered with a detachable transparent window in a sealing manner.

7. The duct dust collector according to claim 5, wherein the tank is vertical; the support net is arranged on the support frame, the circumferential surface of the packing layer is in contact with the inner wall of the tank body, and the packing layer is borne on the support net.

8. The duct dust collector according to claim 5, wherein the tank is horizontal, and the inlet pipe and the outlet pipe are in a horizontal direction; the packing material is characterized by further comprising a partition plate, and the peripheral surface of the packing layer and the inner wall of the tank body are supported and arranged at intervals through the partition plate.

9. The duct dust collector according to claim 8, further comprising a second bent pipe, the second bent pipe being located inside the tank body, one end of the second bent pipe being connected to the outlet pipe, and the other end of the second bent pipe being bent toward the peripheral wall.

10. A gas treatment system adapted for treating a gas generated in the production of a solar cell, wherein the gas treatment system comprises a pretreatment apparatus for treating a silane-containing gas, a duct dust removing apparatus according to any one of claims 1 to 9, and a plant treatment side for treating a gas discharged from the duct dust removing apparatus; the pretreatment device is communicated with the air inlet pipe through a pipeline, the air outlet pipe is communicated with the plant treatment end through a pipeline, and the pipeline dust removal device is close to the pretreatment device.

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