CN110652802A - A preliminary cleaning device of dust in flue gas for msw incineration - Google Patents
A preliminary cleaning device of dust in flue gas for msw incineration Download PDFInfo
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- CN110652802A CN110652802A CN201910905248.5A CN201910905248A CN110652802A CN 110652802 A CN110652802 A CN 110652802A CN 201910905248 A CN201910905248 A CN 201910905248A CN 110652802 A CN110652802 A CN 110652802A
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- flue gas
- dust
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/18—Particle separators, e.g. dust precipitators, using filtering belts
- B01D46/20—Particle separators, e.g. dust precipitators, using filtering belts the belts combined with drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a preliminary cleaning device for dust in smoke for waste incineration, which comprises a support, and a smoke exhaust pipeline and a smoke inlet pipeline which are fixed on the support, wherein a connecting pipe is arranged on the outer wall of one side of the smoke inlet pipeline, a detachable collecting box is arranged at the bottom of the smoke inlet pipeline, the smoke exhaust pipeline is fixedly connected to the top of the smoke inlet pipeline, a channel is arranged between the smoke exhaust pipeline and the smoke inlet pipeline, and a filter frame is arranged in the channel. Can solve the preliminary cleaning device of dust in the current flue gas that is used for msw incineration when using, the inside filter screen of device is fixed motionless, inconvenient cleanness on the one hand, long-time use is extremely easy to be stopped up, thereby need take off the filter screen when clean and delay the processing to the flue gas, can't accomplish to switch clean filter screen in the course of treatment, on the other hand can not come the problem of the filter screen of free switching of sieve mesh diameter size according to the discharge capacity of actual flue gas and the concentration of dust in the flue gas.
Description
Technical Field
The invention relates to the field of waste incineration flue gas treatment, in particular to a preliminary cleaning device for dust in waste incineration flue gas.
Background
The garbage can generate a large amount of smoke after incineration treatment, the smoke needs to be preliminarily cleaned by dust before being discharged, then the subsequent treatment is carried out, thereby reaching the emission standard, the primary dust cleaning has the advantages of achieving the primary treatment of the dust in the flue gas, thereby reducing the influence of dust in the flue gas on the recycling of water and reagent used for treatment in the subsequent treatment process, however, the existing primary cleaning device for dust in flue gas generated by waste incineration still has certain defects when in use, and a filter screen in the device is fixed, so that on one hand, the device is inconvenient to clean and extremely easy to block after long-term use, thereby need take off the filter screen when clean and delay the processing to the flue gas, can't accomplish to switch clean filter screen in the course of handling, on the other hand can't satisfy the discharge capacity of according to actual flue gas and the concentration of dust in the flue gas come the demand that freely switches the filter screen of not using sieve mesh diameter size.
The publication number is: CN 107913566A's patent discloses a domestic waste combustion exhaust treatment device, compares with this application article, can't solve the present application and propose: the preliminary cleaning device of dust in present flue gas for msw incineration is when using, and the inside filter screen of device is fixed motionless, and inconvenient cleanness on the one hand uses and blocks up extremely easily for a long time, thereby need take off the filter screen when clean and delay the processing to the flue gas, can't accomplish to switch clean filter screen in the course of handling, and on the other hand can not come the problem of the filter screen of free switching of sieve mesh diameter size according to the discharge capacity of actual flue gas and the concentration of dust in the flue gas.
Disclosure of Invention
The invention aims to provide a preliminary cleaning device for dust in flue gas generated by waste incineration, which can solve the problems that when the conventional preliminary cleaning device for dust in flue gas generated by waste incineration is used, a filter screen in the device is fixed, the device is inconvenient to clean and easy to block after long-time use, the filter screen needs to be taken down during cleaning so as to delay the treatment of the flue gas, the clean filter screen cannot be switched in the treatment process, and the filter screen without the diameter of a sieve mesh cannot be freely switched according to the actual discharge capacity of the flue gas and the concentration of the dust in the flue gas.
The purpose of the invention can be realized by the following technical scheme:
a preliminary cleaning device for dust in flue gas of waste incineration comprises a support, and a smoke exhaust pipeline and a smoke inlet pipeline which are fixed on the support, wherein a connecting pipe is arranged on the outer wall of one side of the smoke inlet pipeline, a detachable collecting box is arranged at the bottom of the smoke inlet pipeline, the smoke exhaust pipeline is fixedly connected to the top of the smoke inlet pipeline, a channel is arranged between the smoke exhaust pipeline and the smoke inlet pipeline, a filter frame is arranged inside the channel, sliding grooves are formed in the outer walls of the two sides of the smoke exhaust pipeline, a sliding baffle is arranged inside the two sliding grooves, a pull rod is arranged on the side wall of each baffle, a water tank fixed on the support is arranged on one side of the smoke exhaust pipeline, a water pump fixed on the support is arranged on the other side of the smoke exhaust pipeline, an inclined spray head is fixedly arranged on the side wall of the support, and the spray head faces, the water pump is connected with the spray head through a pipeline, the water pump is connected with the water tank through another pipeline, the filter frame is provided with an inclined bucket from the bottom of the part protruding from the bracket, the bottom of the inclined bucket is connected with a bottom box positioned below the smoke inlet pipeline, and the bottom box is fixed at the bottom of the bracket;
one end of the filter frame is connected with a main shaft in a penetrating mode, the other end of the filter frame is connected with an auxiliary shaft in a penetrating mode, a circle of screen cloth is sleeved between the main shaft and the auxiliary shaft, one end, provided with the main shaft, of the filter frame protrudes out of the support, a driving motor connected with the main shaft is installed on the side wall of one end, provided with the main shaft, of the filter frame, one end, provided with the auxiliary shaft, of the filter frame is connected with a rotating shaft parallel to the auxiliary shaft in a penetrating mode, and a hairbrush is sleeved.
Preferably, the screen is divided into three sections, including a small aperture section with the mesh diameter of 3-5mm, a large aperture section with the mesh diameter of 5-8mm, and a blank section, and the small aperture section and the large aperture section have the same area and are matched with the cross-sectional area of the channel.
Preferably, a slot is arranged between the small aperture section and the large aperture section, and one end of the small aperture section, which is far away from the large aperture section, is provided with a slot.
Preferably, the screen is connected with the filter frame through a main shaft and an auxiliary shaft in a rotating manner, and the main shaft is in transmission connection with the driving motor.
Preferably, the inclination angle of the spray head is 60 degrees, and the water spraying coverage area of the spray head is matched with the width of the screen mesh.
Preferably, the distance between two adjacent slots is the same as the distance between two baffles.
Preferably, the use method of the device for cleaning dust in flue gas comprises the following specific steps:
the method comprises the following steps: connecting a connecting pipe with a flue gas discharge pipeline after refuse incineration, connecting the top of a smoke discharge pipeline with an air inlet pipeline of flue gas subsequent treatment equipment, then selecting a small-aperture section or a large-aperture section of a screen according to the concentration of the flue gas and the type of the incinerated refuse, starting a driving motor, driving a main shaft to rotate by using the driving motor, matching the main shaft with an auxiliary shaft in the rotating process to drive the screen to rotate, so that the small-aperture section or the large-aperture section of the screen is rotated into a channel, closing the driving motor after completion, pulling a baffle to descend by using a pull rod, inserting the baffle into an insertion slot, lifting the flue gas after entering the smoke inlet pipeline from the connecting pipe, completing preliminary cleaning of dust in the flue gas after filtering by using the screen, and finally discharging the flue gas from the smoke discharge pipeline;
step two: after the screen is used for a long time, when the screen needs to be switched to the interior of the next section of the inlet channel, the baffle is pulled out from the interior of the slot by using the pull rod, the driving motor is started to drive the screen to rotate, the screen is switched to the interior of the next section of the inlet channel, the brush directly cleans the screen along with the rotation of the screen in the rotating process of the screen, the cleaned dust can directly fall into the collecting box from the smoke inlet channel, and a worker can clean the collecting box at regular intervals;
step three: when the screen cloth needs to be flushed, the screen cloth can utilize the water pump to pump the water in the water tank to the spray head in the rotating process, the drive motor is utilized to drive the screen cloth to rotate forwards and backwards, the spray head flushes the screen cloth, and the flushed water falls into the bottom box along the inclined hopper.
The invention has the beneficial effects that: due to the existence of the baffle, the screen can be pulled to descend by the pull rod after adjustment is completed, so that the baffle is inserted into the slot, on one hand, the baffle can play a role in stabilizing the screen, and on the other hand, after the baffle is inserted into the slot, the flue gas which is not filtered by the screen can be prevented from leaking from the channel;
because the screen is divided into three sections, including a small aperture section with the mesh diameter of 3-5mm, a large aperture section with the mesh diameter of 5-8mm and a blank section, and the screen can rotate under the drive of the drive motor, therefore, when in use, the screen can select a section with a proper mesh according to the type of the actual incineration waste and the concentration of the flue gas, the applicability is stronger, on the other hand, as the screen can be adjusted in a rotating way, therefore, when a certain section of the screen is used for a long time in the using process, the screen holes are blocked by a large amount of dust, the air inlet can be not stopped, the driving motor is directly started to switch the next section of the screen to carry out the filtering and cleaning work of the dust, therefore, the progress of flue gas treatment cannot be delayed, and the situation that a large amount of flue gas leaks without being treated by dust in the screen replacing process cannot occur;
due to the existence of the brush and the collection box, the screen can be directly cleaned by the brush in the rotating process, the cleaned dust can directly fall into the collection box from the smoke inlet pipeline, workers can clean the collection box regularly without connecting a drive, the brush rotates along with the rotation of the screen to clean the screen, on the other hand, due to the existence of the spray head, the water pump can be used for pumping the water in the water tank to the spray head in the rotating process of the screen, the spray head washes the screen, the brush is matched with the spray head together, the screen does not need to be manually cleaned, the screen does not need to be taken down in the cleaning process, even can be cleaned while cleaning the dust in the smoke, only the drive motor is used for driving the screen to rotate forwards and backwards, and the washed water falls into the bottom box along the inclined bucket, the water collected in the bottom box can be re-introduced into the water tank for cyclic utilization after being precipitated and filtered.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a bottom view of the present invention;
FIG. 4 is a schematic view of a filter frame according to the present invention;
FIG. 5 is a schematic view of the bottom structure of the filter frame of the present invention;
in the figure: 1. a support; 2. a smoke exhaust duct; 3. a filter frame; 4. a smoke inlet pipeline; 5. a collection box; 6. taking over a pipe; 7. a water tank; 8. a water pump; 9. a spray head; 10. an inclined hopper; 11. a bottom box; 12. a pull rod; 13. a baffle plate; 14. a drive motor; 15. a main shaft; 16. a counter shaft; 17. a rotating shaft; 18. a brush; 19. screening a screen; 20. and (4) a slot.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a preliminary cleaning device for dust in flue gas from waste incineration comprises a bracket 1, a flue gas discharging pipe 2 and a flue gas inlet pipe 4 fixed thereon, wherein the outer wall of one side of the flue gas inlet pipe 4 is provided with a connecting pipe 6, the bottom of the flue gas inlet pipe 4 is provided with a detachable collecting box 5, the flue gas discharging pipe 2 is fixedly connected with the top of the flue gas inlet pipe 4, a channel is arranged between the flue gas discharging pipe 2 and the flue gas inlet pipe 4, a filter frame 3 is arranged in the channel, the outer walls of two sides of the flue gas discharging pipe 2 are respectively provided with a sliding chute, a sliding baffle 13 is arranged in each sliding chute, the side walls of the two baffles 13 are respectively provided with a pull rod 12, one side of the flue gas discharging pipe 2 is provided with a water tank 7 fixed on the bracket 1, the other side of the flue gas discharging pipe 2 is provided with a water pump, the sprayer 9 faces the part of the filter frame 3 protruding from the bracket 1, the water pump 8 is connected with the sprayer 9 through a pipeline, the water pump 8 is connected with the water tank 7 through another pipeline, the inclined hopper 10 is installed at the bottom of the part of the filter frame 3 protruding from the bracket 1, the bottom of the inclined hopper 10 is connected with the bottom box 11 positioned below the smoke inlet pipeline 4, and the bottom box 11 is fixed at the bottom of the bracket 1;
one end of the filter frame 3 is connected with a main shaft 15 in a penetrating mode, the other end of the filter frame 3 is connected with an auxiliary shaft 16 in a penetrating mode, a circle of screen meshes 19 are sleeved between the main shaft 15 and the auxiliary shaft 16, one end, provided with the main shaft 15, of the filter frame 3 protrudes out of the support 1, a driving motor 14 connected with the main shaft 15 is installed on the side wall of one end, provided with the main shaft 15, of the filter frame 3, one end, provided with the auxiliary shaft 16, of the filter frame 3 is connected with a rotating shaft 17 parallel to the auxiliary shaft 16 in a penetrating mode, and.
The screen 19 is divided into three sections, including a small aperture section with the mesh diameter of 3-5mm, a large aperture section with the mesh diameter of 5-8mm, and a blank section, and the small aperture section and the large aperture section have the same area and are matched with the cross-sectional area of the channel, because the screen 19 is divided into three sections, including a small aperture section with the mesh diameter of 3-5mm, a large aperture section with the mesh diameter of 5-8mm, and a blank section, and the screen 19 can rotate under the drive of the drive motor 14, the screen 19 can select the section with the appropriate mesh according to the type of the actual incineration waste and the concentration of the flue gas, the applicability is stronger, on the other hand, because the screen 19 can rotate and adjust, the screen 19 can be used for a long time in the use process, the mesh is blocked by a great amount of dust, the dust filtering and cleaning work can be carried out by directly starting the driving motor 14 to switch the next section of the screen 19 without stopping air intake, so that the progress of flue gas treatment is not delayed, and the situation that a large amount of flue gas leaks without being treated by dust in the process of replacing the screen 19 is avoided.
Be provided with slot 20 between small aperture section, the big aperture section, and the one end that small aperture section, big aperture section kept away from all is provided with a slot 20.
The screen 19 is connected with the filter frame 3 through the main shaft 15 and the auxiliary shaft 16 in a rotating way, and the main shaft 15 is connected with the driving motor 14 in a transmission way.
The inclination angle of the spray head 9 is 60 degrees, and the water spraying coverage area of the spray head 9 is matched with the width of the screen 19.
The distance between two adjacent slots 20 is the same as the distance between two baffles 13.
The use method of the device for cleaning dust in flue gas comprises the following specific steps:
the method comprises the following steps: connecting a connecting pipe 6 with a flue gas discharge pipeline after refuse incineration, connecting the top of a smoke discharge pipeline 2 with an air inlet pipeline of flue gas subsequent treatment equipment, then selecting a small-aperture section or a large-aperture section of a screen 19 according to the concentration of the flue gas and the type of incinerated refuse, starting a driving motor 14, driving a main shaft 15 to rotate by using the driving motor 14, driving the screen 19 to rotate by matching the main shaft 15 with an auxiliary shaft 16 in the rotating process, rotating the small-aperture section or the large-aperture section of the screen 19 into a channel, closing the driving motor 14 after completion, pulling a baffle 13 to descend by using a pull rod 12, inserting the baffle 13 into an insertion slot 20, enabling the flue gas to enter a smoke inlet pipeline 4 from the connecting pipe 6, then ascending, completing preliminary cleaning of dust in the flue gas after filtration by the screen 19, and finally discharging the flue gas from the smoke discharge pipeline 2;
step two: after the screen 19 is used for a long time and needs to be switched to the next section of the inlet channel, the baffle 13 is pulled out from the slot 20 by the pull rod 12, the driving motor 14 is started to drive the screen 19 to rotate, the screen is switched to the next section of the inlet channel, the brush 18 rotates along with the rotation of the screen 19 in the rotating process of the screen 19 to directly clean the screen 19, the cleaned dust can directly fall into the collecting box 5 from the smoke inlet pipeline 4, and a worker can clean the collecting box 5 regularly;
step three: when the screen 19 needs to be flushed, the screen 19 can utilize the water pump 8 to pump water in the water tank 7 to the spray head 9 in the rotating process, the driving motor 14 is utilized to drive the screen 19 to rotate forwards and backwards, the spray head 9 flushes the screen 19, and the flushed water falls into the bottom box 11 along the inclined hopper 10.
When the invention is used, firstly, the whole device is assembled, the exhaust pipe 2 is fixed on the upper half section of the bracket 1, the smoke inlet pipe 4 is fixed on the lower half section of the bracket 1, the collecting box 5 is arranged at the bottom of the smoke inlet pipe 4, then the filter frame 3 is fixedly arranged on the channel between the exhaust pipe 2 and the smoke inlet pipe 4, when the filter frame 3 is installed, one end of the filter frame 3, which is provided with a main shaft 15, protrudes from the bracket 1, one end of the filter frame 3, which is provided with an auxiliary shaft 16, is arranged in the channel, the hairbrush 18 is positioned above the inner wall of the smoke inlet pipe 4, when the hairbrush 18 is arranged, the cleaned dust can fall into the smoke inlet pipe 4 completely, the hairbrush 18 is required to be in contact with the screen 19, then the water pump 8 is arranged on one side of the exhaust pipe 2, the water tank 7 is arranged on the other side of the exhaust pipe 2, the water pump 8, the water pump 8 is connected with the water tank 7 through a pipeline, then an inclined bucket 10 is installed below the filter frame 3, the bottom end of the inclined bucket 10 is connected with a bottom box 11 located below the smoke inlet pipeline 4, finally the water pump 8 and the driving motor 14 are connected with an external power supply through leads, the driving motor 14 adopts a servo motor, and the water tank can be put into use after the water pump and the driving motor are completed. Firstly, connecting the connecting pipe 6 with a flue gas discharge pipeline after refuse incineration, connecting the top of the smoke discharge pipeline 2 with an air inlet pipeline of flue gas subsequent treatment equipment, then selecting a small-aperture section or a large-aperture section of the screen 19 according to the concentration of the flue gas and the type of incinerated refuse, starting the driving motor 14, driving the main shaft 15 to rotate by using the driving motor 14, driving the screen 19 to rotate by matching the main shaft 15 with the auxiliary shaft 16 in the rotating process, thereby rotating the small-aperture section or the large-aperture section of the screen 19 into the channel, closing the driving motor 14 after completion, pulling the baffle 13 to descend by using the pull rod 12, thereby inserting the baffle 13 into the slot 20, wherein the baffle 13 can play a role in stabilizing the screen 19 on one hand, and on the other hand, after the baffle 13 is inserted into the slot 20, the flue gas which is not filtered by the screen 19 can be prevented from leaking, after the screen 19 is used for a long time, the screen 19 needs to be switched to the next section to enter the channel, the baffle 13 is drawn out from the slot 20 by the pull rod 12, the driving motor 14 is started to drive the screen 19 to rotate, so that the screen is switched to the next section to enter the channel, the screen 19 is divided into three sections, including a small aperture section with the mesh diameter of 3-5mm, a large aperture section with the mesh diameter of 5-8mm and a blank section, and the screen 19 can rotate under the driving of the driving motor 14, so that the screen 19 can select a section with a proper mesh according to the type of the actual incineration waste and the concentration of the flue gas when in use, the applicability is stronger, on the other hand, the screen 19 can be rotatably adjusted, so that the screen 19 is used for a certain section in the use process for a long time, the mesh is blocked by a large amount of dust, and the air inlet does, the driving motor 14 is directly started to switch the next section of the screen 19 to perform the dust filtering and cleaning work, so that the progress of the flue gas treatment is not delayed, and the situation that a large amount of flue gas leaks without being treated by dust in the process of replacing the screen 19 is avoided. The smoke enters the smoke inlet pipe 4 from the connecting pipe 6 and rises, and is filtered by the screen 19 to finish the preliminary cleaning of dust in the smoke, finally the smoke is discharged from the smoke exhaust pipe 2, the screen 19 can directly clean the screen 19 by the brush 18 in the rotating process due to the existence of the brush 18 and the collecting box 5, the cleaned dust can directly fall into the collecting box 5 from the smoke inlet pipe 4, a worker can clean the collecting box 5 regularly, the brush 18 does not need to be connected with a drive, the brush 18 rotates along with the rotation of the screen 19 to clean the screen 19, on the other hand, due to the existence of the spray head 9, the water pump 8 can be used for pumping the water in the water tank 7 to the spray head 9 in the rotating process of the screen 19, the spray head 9 flushes the screen 19, and the brush 18 are matched with the spray head 9 together, the screen 19 does not need to be manually cleaned, the screen 19 does not need to be taken down in the cleaning process, even the dust in the flue gas can be cleaned while cleaning, only the driving motor 14 needs to be used for driving the screen 19 to rotate forwards and backwards, the washed water falls into the bottom box 11 along the inclined hopper 10, and the water collected in the bottom box 11 can be re-introduced into the water tank 7 for cyclic utilization after being precipitated and filtered.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A preliminary cleaning device of dust in flue gas for waste incineration comprises a support (1), and an exhaust flue (2) and a smoke inlet pipe (4) which are fixed on the support, and is characterized in that a connecting pipe (6) is arranged on the outer wall of one side of the smoke inlet pipe (4), a detachable collecting box (5) is installed at the bottom of the smoke inlet pipe (4), the exhaust flue (2) is fixedly connected to the top of the smoke inlet pipe (4), a channel is arranged between the exhaust flue (2) and the smoke inlet pipe (4), a filter frame (3) is installed inside the channel, sliding grooves are formed in the outer walls of two sides of the exhaust flue (2), a slidable baffle (13) is installed inside each sliding groove, a pull rod (12) is arranged on the side wall of each baffle (13), a water tank (7) fixed on the support (1) is arranged on one side of the exhaust flue (2), a water pump (8) fixed on the support (1) is arranged on the other side of the smoke exhaust pipeline (2), an inclined spray head (9) is fixedly mounted on the side wall of the support (1), the spray head (9) faces the part of the filter frame (3) protruding from the support (1), the water pump (8) is connected with the spray head (9) through a pipeline, the water pump (8) is connected with the water tank (7) through another pipeline, an inclined bucket (10) is mounted at the bottom of the part of the filter frame (3) protruding from the support (1), the bottom of the inclined bucket (10) is connected with a bottom box (11) positioned below the smoke inlet pipeline (4), and the bottom box (11) is fixed at the bottom of the support (1);
one end of the filter frame (3) is connected with a main shaft (15) in a penetrating manner, the other end of the filter frame (3) is connected with an auxiliary shaft (16) in a penetrating manner, a circle of screen (19) is sleeved between the main shaft (15) and the auxiliary shaft (16), one end of the filter frame (3) provided with the main shaft (15) protrudes from the support (1), a driving motor (14) connected with the main shaft (15) is installed on one end side wall of the filter frame (3) provided with the main shaft (15), one end of the filter frame (3) provided with the auxiliary shaft (16) is connected with a rotating shaft (17) parallel to the auxiliary shaft (16) in a penetrating manner, and a brush (18) is sleeved on the rotating shaft (17).
2. The device for preliminarily cleaning dust in flue gas generated by incinerating garbage according to claim 1, wherein the screen (19) is divided into three sections, including a small aperture section with the mesh diameter of 3-5mm, a large aperture section with the mesh diameter of 5-8mm and a blank section, and the small aperture section and the large aperture section have the same area and are matched with the cross sectional area of the channel.
3. The device for preliminarily cleaning dust in flue gas generated by incinerating garbage according to claim 2, wherein slots (20) are arranged between the small-aperture section and the large-aperture section, and one slot (20) is arranged at each end far away from the small-aperture section and the large-aperture section.
4. The device for preliminarily cleaning dust in flue gas generated by incinerating garbage according to claim 1, characterized in that the screen (19) is rotatably connected with the filter frame (3) through a main shaft (15), an auxiliary shaft (16), and the main shaft (15) is in transmission connection with the driving motor (14).
5. The device for preliminarily cleaning dust in flue gas generated by incinerating garbage according to claim 1, wherein the inclination angle of the spray head (9) is 60 degrees, and the water spraying coverage area of the spray head (9) is matched with the width of the screen (19).
6. The device for preliminarily cleaning dust in flue gas generated by incinerating waste as claimed in claim 3, wherein the distance between two adjacent slots (20) is the same as the distance between two baffles (13).
7. The preliminary cleaning device for dust in flue gas generated by waste incineration according to claim 1, wherein the use method of the preliminary cleaning device for dust in flue gas comprises the following specific steps:
the method comprises the following steps: connecting the connecting pipe (6) with a flue gas discharge pipeline after waste incineration, connecting the top of the smoke discharge pipeline (2) with an air inlet pipeline of flue gas subsequent treatment equipment, then selecting a small-aperture section or a large-aperture section of the screen (19) according to the concentration of the flue gas and the type of the incinerated waste, starting the driving motor (14), driving the main shaft (15) to rotate by using the driving motor (14), driving the screen (19) to rotate by matching the main shaft (15) with the auxiliary shaft (16) in the rotating process, so that the small-aperture section or the large-aperture section of the screen (19) is rotated into the channel, closing the driving motor (14) after the completion, pulling the baffle (13) to descend by using the pull rod (12), inserting the baffle (13) into the slot (20), enabling the flue gas to enter the smoke inlet pipeline (4) from the connecting pipe (6) and ascend, and completing the preliminary cleaning of dust in the flue gas after being filtered by the screen (19), finally, the flue gas is discharged from the smoke discharge pipeline (2);
step two: after the screen (19) is used for a long time and needs to be switched to the next section to enter the channel, the baffle (13) is pulled out of the slot (20) by the pull rod (12), the driving motor (14) is started to drive the screen (19) to rotate, the screen (19) is switched to the next section to enter the channel, the brush (18) directly cleans the screen (19) along with the rotation of the screen (19) in the rotating process of the screen (19), the cleaned dust can directly fall into the collecting box (5) from the smoke inlet pipeline (4), and a worker can clean the collecting box (5) periodically;
step three: when the screen (19) needs to be flushed, the screen (19) can pump water in the water tank (7) to the spray head (9) by using the water pump (8) in the rotating process, the screen (19) is driven to rotate forwards and backwards by using the driving motor (14), the screen (19) is flushed by the spray head (9), and the flushed water falls into the bottom box (11) along the inclined hopper (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910905248.5A CN110652802A (en) | 2019-09-24 | 2019-09-24 | A preliminary cleaning device of dust in flue gas for msw incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910905248.5A CN110652802A (en) | 2019-09-24 | 2019-09-24 | A preliminary cleaning device of dust in flue gas for msw incineration |
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| Publication Number | Publication Date |
|---|---|
| CN110652802A true CN110652802A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910905248.5A Pending CN110652802A (en) | 2019-09-24 | 2019-09-24 | A preliminary cleaning device of dust in flue gas for msw incineration |
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| Country | Link |
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| CN (1) | CN110652802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111587018A (en) * | 2020-06-08 | 2020-08-25 | 杭州浮瓦科技有限公司 | Outdoor electromechanical device protection device capable of rapidly cleaning dust screen |
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2019
- 2019-09-24 CN CN201910905248.5A patent/CN110652802A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111587018A (en) * | 2020-06-08 | 2020-08-25 | 杭州浮瓦科技有限公司 | Outdoor electromechanical device protection device capable of rapidly cleaning dust screen |
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Application publication date: 20200107 |