Bag-type dust collector for boiler

Abstract

The utility model relates to the technical field of dust removal and purification, and discloses a bag-type dust remover for a boiler, which comprises a treatment chamber, a condensation inner pipe penetrates through and is fixedly connected with the front side of the treatment chamber, a smoke inlet pipe is fixedly connected with the front side of the condensation inner pipe, and a cleaning pipe penetrates through and is fixedly connected with the front side of the top of the outer ring of the condensation inner pipe. The rear side of the bottom of the outer ring of the condensation inner pipe penetrates through and is fixedly connected with a blow-off pipe, the outer ring of the condensation inner pipe is provided with a condensation outer pipe, the front side of the top of the outer ring of the condensation outer pipe penetrates through and is fixedly connected with a water inlet pipe, and the rear side of the bottom of the outer ring of the condensation outer pipe penetrates through and is fixedly connected with a water outlet pipe; a dust removal chamber is fixedly connected to the top of the treatment chamber, and a cleaning structure is arranged on the inner wall of the dust removal chamber. The external water pump injects cooling liquid into the inner wall of the condensation outer pipe through the water inlet pipe to achieve the purpose of cooling smoke dust, and cleaning liquid is injected into the condensation inner pipe through the cleaning pipe to flush particles and dust adhering to the inner wall.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal and purification, in particular to a bag dust collector for a boiler. Background Art

[0002] When the boiler burns fuel, a large amount of flue gas will be generated, which contains solid particles such as dust and smoke. If these particles are discharged into the atmosphere, they will cause harm to the environment and human health. Therefore, the bag filter can effectively capture the solid particles in the flue gas, reduce the emission concentration of solid particles in the flue gas to a level that meets the emission standards, and purify the flue gas to meet environmental emission standards.

[0003] After searching, the existing Chinese patent announcement number is: CN212283249U, which provides a bag dust collector for a thermal power boiler. The patent provides a bag dust collector for a thermal power boiler through the utility model, including a box body, a support plate, a bag assembly, an ash discharge funnel and an ash collection box. An air inlet is provided on the side wall of the box body, an air outlet is provided on the top of the box body, the bag assembly is fixedly provided on the support plate, the ash discharge funnel is fixedly provided at the bottom of the box body and is connected to the box body, the ash collecting box is detachably connected to the bottom of the ash discharge funnel, a hook is provided at the lower end of the ash discharge funnel, a clamping ring is provided on the side of the ash collecting box, the clamping ring can be rotatably connected to the side of the ash collecting box, the clamping ring can be sleeved on the hook so that the ash collecting box is tightly connected to the bottom of the ash discharge funnel along the height direction, and a filter assembly is clamped between the ash collecting box and the ash discharge funnel. Therefore, by providing a filter assembly between the detachably connected ash collecting box and the ash discharge funnel, the dustproof performance at the ash discharge port can be effectively improved. The assembled clamping ring and hook can improve the assembly fastening and sealing performance of the filter assembly, prevent dust leakage, and improve the dustproof and ash collecting performance of the bag dust collector at the ash discharge port.

[0004] Although the above patent can play a role in purifying boiler flue gas, the above-mentioned bag dust collector for thermal power boilers still has the following problems: the boiler flue gas directly enters the equipment for purification without being cooled, the incompletely burned flue gas will cause irreversible damage to the bags, and the bags are not easy to clean and cannot be used continuously.

[0005] In view of the above problems, a bag filter for a boiler is proposed. Utility Model Content

[0006] The utility model aims to provide a bag dust collector for a boiler, which solves the problem in the background technology that the incompletely burned flue gas directly enters the equipment for purification and the bag is difficult to clean.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bag dust collector for a boiler, comprising a treatment chamber, a condensing inner tube penetrating and fixedly connected to the front side of the treatment chamber, a smoke inlet pipe fixedly connected to the front side of the condensing inner tube, a cleaning pipe penetrating and fixedly connected to the front side of the top of the outer ring of the condensing inner tube, a sewage pipe penetrating and fixedly connected to the rear side of the bottom of the outer ring of the condensing inner tube, an outer condensing tube is arranged on the outer ring of the condensing inner tube, a water inlet pipe is penetrating and fixedly connected to the front side of the top of the outer ring of the condensing outer tube, a water outlet pipe is penetrating and fixedly connected to the rear side of the bottom of the outer ring of the condensing outer tube, support arms are fixedly connected to the left and right sides and the rear side of the treatment chamber, a dust removal chamber is fixedly connected to the top of the treatment chamber, a motor is fixedly connected to the left side of the top of the dust removal chamber, a lead screw is fixedly connected to the output end of the motor, a nut pair is penetrating and threadedly connected to the top of the lead screw outer ring, and a cleaning structure is arranged on one side of the nut pair;

[0008] By adopting the above technical solution, the condenser cools down the smoke and prevents the incompletely burned particles from directly entering the dust removal chamber. During the cooling process, the particles and dust attached to the inner wall of the condenser are cleaned by the cleaning pipe and the sewage outlet. The output end of the motor drives the screw to move the nut cover.

[0009] As a further description of the above technical solution: the cleaning structure includes a fixed arm, the nut pair is fixedly connected to the fixed arm, the bottom of the fixed arm is fixedly connected to a shunt pipe, and the bottom of the shunt pipe penetrates and is fixedly connected to a high-pressure cleaner;

[0010] By adopting the above technical solution, the screw rod drives the nut pair to move, so that the fixed arm drives the shunt pipe to move to a suitable position, and the cloth bag can be cleaned by a high-pressure cleaner.

[0011] As a further description of the above technical solution: the top of the left and right sides of the inner wall of the dust removal chamber are provided with slide grooves, and the screw rod drives the nut pair to move up and down in the slide grooves;

[0012] By adopting the above technical solution, the output end of the motor drives the lead screw to make the nut pair slide in the slide groove, so that the fixed arm moves up and down.

[0013] As a further description of the above technical solution: a partition is fixedly connected to the middle of the inner wall of the dust removal chamber, and cloth bags are passed through and fixedly connected to both sides of the bottom of the partition;

[0014] By adopting the above technical solution, smoke entering the dust removal chamber is blocked by the partition, the smoke is filtered by the bag, and the smoke after filtering is discharged from the through hole on the top of the bag.

[0015] As a further description of the above technical solution: a connecting hose is penetrated and slidably connected to the rear side of the top of the dust removal chamber;

[0016] By adopting the above technical solution, the external water pump can inject the cleaning liquid into the diversion pipe through the connecting hose.

[0017] As a further description of the above technical solution: the bottom of the processing chamber is fixedly connected to a limit block, the front and rear sides of the limit block are penetrated and rotatably connected with a rotating shaft, the left side of the rotating shaft is fixedly connected to a bottom plate, and the bottom of the bottom plate is penetrated and threadedly connected with a locking screw;

[0018] By adopting the above technical solution, the bottom plate is closed by the rotating shaft to seal the processing chamber, and a locking screw is provided at the bottom of the bottom plate to limit the bottom plate.

[0019] As a further description of the above technical solution: a collection box is provided at the bottom of the processing chamber;

[0020] By adopting the above technical solution, a collection box can be used to collect particles and dust filtered by the bag assembly, as well as waste water after cleaning the condensation inner tube and waste water after cleaning the bag assembly.

[0021] As a further description of the above technical solution: a smoke outlet pipe is fixedly connected to the top of the dust removal chamber;

[0022] By adopting the above technical solution, smoke dust that meets the standards after filtering by the filtering system is discharged into the air through the smoke outlet pipe.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model provides a bag dust collector for a boiler. An external water pump injects coolant into the inner wall of a condenser outer tube through a water inlet pipe to cool the smoke. A cleaning liquid is injected into the condenser inner tube through a cleaning pipe to wash away particles and dust sticking to the inner wall. Finally, the liquid is discharged into a collection box through a drain pipe at the bottom of the condenser inner tube.

[0025] The utility model provides a bag dust collector for a boiler, an external water pump injects cleaning liquid into a shunt pipe through a connecting hose, a motor drives a screw rod to make a nut pair drive a fixed arm to move up and down on the inner wall of a dust removal chamber to the inner wall of the bag dust collector, so that the shunt pipe at the bottom of the fixed arm cleans the bag dust collector through a high-pressure cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a top view of the utility model;

[0028] Figure 3 It is a rear view of the utility model;

[0029] Figure 4It is a cross-sectional view of the utility model;

[0030] Figure 5 This is a schematic diagram of the bottom plate structure of the utility model;

[0031] Figure 6 It is a schematic diagram of the dust removal chamber structure of the utility model.

[0032] In the figure: 1. Smoke inlet pipe; 2. Condenser inner pipe; 3. Condenser outer pipe; 4. Cleaning pipe; 5. Water outlet pipe; 6. Water inlet pipe; 7. Drain pipe; 8. Processing chamber; 9. Bottom plate; 10. Limit block; 11. Rotating shaft; 12. Locking screw; 13. Collecting box; 14. Support arm; 15. Dust removal chamber; 16. Cloth bag; 17. Partition; 18. Screw; 19. High-pressure cleaner; 20. Diverter pipe; 21. Nut pair; 22. Fixed arm; 23. Connecting hose; 24. Motor; 25. Smoke outlet pipe; 26. Slide. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0035] Combination Figure 1 and Figure 5 The utility model is a bag dust collector for a boiler, comprising a processing chamber 8, a smoke inlet pipe 1 is arranged at the front side of the processing chamber 8, support arms 14 are fixedly connected to the left and right sides and the rear side of the processing chamber 8, a dust removal chamber 15 is fixedly connected to the top of the processing chamber 8, a partition 17 is fixedly connected to the middle of the inner wall of the dust removal chamber 15, bags 16 are penetrated and fixedly connected to the two sides of the bottom of the partition 17, a limiting block 10 is fixedly connected to the bottom of the processing chamber 8, a rotating shaft 11 is penetrated and rotatably connected to the front and rear sides of the limiting block 10, and a bottom plate 9 is fixedly connected to the left side of the rotating shaft 11, A locking screw 12 passes through and is threadedly connected to the bottom of the bottom plate 9, a collecting box 13 is provided at the bottom of the processing chamber 8, and a smoke outlet pipe 25 is fixedly connected to the top of the dust removal chamber 15. The smoke generated by the boiler enters through the smoke inlet pipe 1, and enters the processing chamber 8 after cooling. The heavier particles fall into the bottom plate 9 at the bottom of the processing chamber 8, and the lighter dust and smoke enter the dust removal chamber 15, so that the bag 16 further filters them. The filtered particles and dust fall into the collecting box 13 by opening the bottom plate 9, and the filtered air is discharged from the smoke outlet pipe 25 at the top.

[0036] Combination Figure 2 , 3 and Figure 4 A condensing inner tube 2 is penetrated and fixedly connected to the front side of the treatment chamber 8, a smoke inlet pipe 1 is fixedly connected to the front side of the condensing inner tube 2, a cleaning pipe 4 is penetrated and fixedly connected to the front side of the top of the outer ring of the condensing inner tube 2, a sewage pipe 7 is penetrated and fixedly connected to the rear side of the bottom of the outer ring of the condensing inner tube 2, a condensing outer tube 3 is arranged on the outer ring of the condensing inner tube 2, a water inlet pipe 6 is penetrated and fixedly connected to the front side of the top of the outer ring of the condensing outer tube 3, a water outlet pipe 5 is penetrated and fixedly connected to the rear side of the bottom of the outer ring of the condensing outer tube 3, an external water pump draws coolant into the condensing outer tube 3 from the water inlet pipe 6, so that the condensing inner tube 2 cooperates with the condensing outer tube 3 to cool down the smoke generated by the boiler. After cooling, the smoke enters the treatment chamber 8 through the inclined condensing inner tube 2. After completing the smoke treatment work, the cleaning liquid is injected into the condensing inner tube 2 from the cleaning tube 4 to wash away the particles and dust attached to the inner wall.

[0037] Combination Figure 4 and Figure 6 A motor 24 is fixedly connected to the left side of the top of the dust removal chamber 15, and a screw rod 18 is fixedly connected to the output end of the motor 24. A nut pair 21 is passed through and threadedly connected to the top of the outer ring of the screw rod 18. A fixed arm 22 is fixedly connected to the left side of the nut pair 21, and a shunt pipe 20 is fixedly connected to the bottom of the fixed arm 22. The bottom of the shunt pipe 20 passes through and is fixedly connected to a high-pressure cleaner 19. Slide grooves 26 are provided on the top of the left and right sides of the inner wall of the dust removal chamber 15, and the screw rod 18 drives the nut pair 21 to move up and down in the slide groove 26. A connecting hose 23 is passed through and slidably connected to the rear side of the top of the dust removal chamber 15, and a connecting hose 23 is passed through and fixedly connected to the middle of the outer ring of the shunt pipe 20. The output end of the motor 24 drives the screw rod 18, so that the nut pair 21 drives the fixed arm 22 to move in the slide groove 26, so as to achieve the purpose of the mobile cleaning device. The external water pump draws the cleaning liquid into the shunt pipe 20 through the connecting hose 23, and the high-pressure cleaner 19 cleans the cloth bag 16 through the shunt pipe 20, so as to achieve the purpose of the mobile cleaning device.

[0038] Working principle: The external water pump draws the coolant into the inner wall of the condensation outer tube 3 from the water inlet pipe 6. The smoke generated by the boiler enters from the smoke inlet pipe 1 and is cooled by the condensation inner tube 2. The smoke enters the treatment chamber 8 through the condensation inner tube 2. The cooled smoke enters the dust removal chamber 15. The solid particles and dust in the air are filtered by the bag 16, and the particles are separated from the airflow. The particles fall into the bottom plate 9 through the inclined inner wall of the treatment chamber 8. When the bottom plate 9 is opened, the impurities and dust fall into the collection box 13. The purified air is discharged by the partition. 17 is discharged through the smoke outlet pipe 25. After the smoke treatment work is completed, the cleaning liquid can be injected from the cleaning pipe 4 into the condenser inner tube 2 to clean the inner wall, and then discharged into the collection box 13 through the sewage pipe 7. The motor 24 is started to drive the screw rod 18, so that the nut pair 21 drives the high-pressure cleaner 19 to move downward to the inner wall of the bag 16. An external water pump is used to inject cleaning liquid into the diverter pipe 20 through the connecting hose 23, and the bag 16 is cleaned by the high-pressure cleaner 19. The cleaned sewage is discharged into the collection box 13 through the treatment chamber 8 with an inclined inner wall.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bag filter for a boiler, comprising a treatment chamber (8), characterized in that: The front side of the treatment chamber (8) is penetrated by and fixedly connected with a condensing inner tube (2), the front side of the condensing inner tube (2) is fixedly connected with a smoke inlet pipe (1), the front side of the top of the outer ring of the condensing inner tube (2) is penetrated by and fixedly connected with a cleaning pipe (4), the rear side of the bottom of the outer ring of the condensing inner tube (2) is penetrated by and fixedly connected with a sewage discharge pipe (7), the outer ring of the condensing inner tube (2) is provided with a condensing outer tube (3), the front side of the top of the outer ring of the condensing outer tube (3) is penetrated by and fixedly connected with a water inlet pipe (6), the outer ring of the condensing outer tube ( 3) A water outlet pipe (5) is passed through and fixedly connected to the rear side of the bottom of the outer ring; support arms (14) are fixedly connected to the left and right sides and the rear side of the treatment chamber (8); a dust removal chamber (15) is fixedly connected to the top of the treatment chamber (8); a motor (24) is fixedly connected to the left side of the top of the dust removal chamber (15); a screw rod (18) is fixedly connected to the output end of the motor (24); a nut pair (21) is passed through and threadedly connected to the top of the outer ring of the screw rod (18); a cleaning structure is provided on one side of the nut pair (21).

2. A bag filter for a boiler according to claim 1, characterized in that: The cleaning structure comprises a fixed arm (22), the nut pair (21) is fixedly connected to the fixed arm (22), the bottom of the fixed arm (22) is fixedly connected to a diverter pipe (20), and the bottom of the diverter pipe (20) passes through and is fixedly connected to a high-pressure cleaner (19).

3. A bag filter for a boiler according to claim 1, characterized in that: Slide grooves (26) are provided at the top of the left and right sides of the inner wall of the dust removal chamber (15), and the screw rod (18) drives the nut pair (21) to move up and down in the slide groove (26).

4. A bag filter for a boiler according to claim 1, characterized in that: A partition plate (17) is fixedly connected in the middle of the inner wall of the dust removal chamber (15), and cloth bags (16) are passed through and fixedly connected on both sides of the bottom of the partition plate (17).

5. The bag filter for boiler according to claim 1, characterized in that: A connecting hose (23) penetrates and is slidably connected to the rear side of the top of the dust removal chamber (15).

6. A bag filter for a boiler according to claim 1, characterized in that: The bottom of the processing chamber (8) is fixedly connected to a limit block (10), the front and rear sides of the limit block (10) are penetrated by a rotating shaft (11) and are rotatably connected thereto, the left side of the rotating shaft (11) is fixedly connected to a bottom plate (9), and the bottom of the bottom plate (9) is penetrated by a locking screw (12) and is threadedly connected thereto.

7. A bag filter for a boiler according to claim 1, characterized in that: A collecting box (13) is provided at the bottom of the processing chamber (8).

8. The bag filter for boiler according to claim 1, characterized in that: The top of the dust removal chamber (15) is fixedly connected with a smoke outlet pipe (25).

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