CN221287179U - Jetting device of cloth bag dust remover - Google Patents

Abstract

The utility model discloses a blowing device for a bag filter, which relates to the technical field of bag filter, and includes a shell, a filter assembly and a longitudinal frame. An air inlet pipe is installed on the left surface of the shell, the filter assembly is installed inside the shell, a hollow air storage plate is arranged above the filter assembly in parallel, and the longitudinal frame is welded to the left side of the top end of the shell. The utility model uses the longitudinal frame, the slide, the screw and the servo motor in coordination, so that the movable block, the cross plate, the compressed air pump, the gas pipeline and the jet pipe have a lifting function. The jet pipe can be inserted into the upper end of the filter bag when it descends. The compressed gas generated by the compressed air pump is completely introduced into the filter bag through the gas pipeline and the jet pipe, so that the compressed gas is avoided from being wasted during the transportation process. After the compressed gas enters the filter bag, the dust on its surface is washed down. After the filter bag is filtered, the jet pipe is separated from the filter bag, so that the cleaning effect of the filter bag is enhanced without affecting the discharge of the filtered gas.

Description

A spraying device for bag dust collector

Technical Field

The utility model relates to the technical field of bag dust collectors, in particular to a blowing device for bag dust collectors.

Background technique

It is inevitable that smoke and dust will be generated during the use of high-temperature boilers. The current environmental monitoring is becoming more and more stringent, and dust collectors with better filtering effects are needed. Bag dust collectors are a dry dust removal device, which is used for fine, dry, non-fibrous dust. The filter bags are made of textile filter cloth or non-textile felt, and the dust-containing gas is filtered by the filtering effect of the fiber fabric. When the dust-containing gas enters the bag dust collector, the dust with large particles and high specific gravity settles down due to gravity and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified.

The patent document with the prior art publication number CN213055508U provides a bag dust collector for a high-temperature boiler. The utility model solves the problem that the existing dust collectors often have a single function and cannot meet the cleaning needs. The air intake cooling structure solves the problem that the incoming flue gas temperature is too high and there is no corresponding measure to cool it down, resulting in a shortened life of the internal bag and increased maintenance costs.

The prior art patent document with publication number CN218076901U provides a bag dust collector for a boiler. The utility model can adjust the combined height of the upper positioning frame and the lower positioning frame according to the different depths of the filter bags.

The above two patents, including the existing bag dust collector, have the following defects:

There is a certain distance between the air outlet nozzle of the air compressor and the upper opening of the bag. This distance is used to discharge the filtered gas. However, due to the setting of this distance, the air outlet nozzle of the air compressor cannot completely inject the compressed air into the bag, and part of the compressed gas is lost, which reduces the cleaning effect of the compressed gas on the bag. Therefore, a blowing device for the bag dust collector is urgently needed.

Utility Model Content

Based on this, the purpose of the utility model is to provide a blowing device for a bag dust collector to solve the problem that there is a certain distance between the air outlet nozzle of the air compressor and the upper end opening of the bag in the existing bag dust collector. This distance is used to discharge the filtered gas, but due to the setting of this distance, the air outlet nozzle of the air compressor cannot completely inject the compressed air into the bag, part of the compressed gas is lost, and the cleaning effect of the compressed gas on the bag is reduced.

To achieve the above object, the utility model provides the following technical solutions: a blowing device for a bag dust collector, comprising a shell, a filter assembly and a vertical frame, an air inlet pipe is installed on the left surface of the shell, the filter assembly is installed inside the shell, a hollow air storage plate is arranged above the filter assembly in parallel, and an air injection pipe is installed on the lower surface of the hollow air storage plate, the upper end of the hollow air storage plate is connected to an air delivery pipeline, and the upper end of the air delivery pipeline is connected to a compressed air pump;

The longitudinal frame is welded to the left side of the top end of the shell, and a slide groove is opened inside the longitudinal frame. A lead screw is rotatably connected inside the slide groove, and the top end of the lead screw passes through the upper surface of the longitudinal frame through a bearing and is connected to a servo motor. The outer side of the lead screw is threadedly connected to a movable block, and a horizontal plate is welded to the end of the movable block away from the longitudinal frame. An exhaust pipe is installed on the right side surface of the shell, and a controller is arranged below the exhaust pipe.

Preferably, the filter assembly includes a fixing frame, a filter bag, a circular ring plate and screws, the edge of the fixing frame is welded to the inner wall of the shell, and the filter bag passes through the interior of the fixing frame, the outer side of the upper end of the filter bag is integrally installed with a circular ring plate, and the interior of the circular ring plate is penetrated by screws.

Preferably, a plurality of exhaust holes are arranged and distributed on the lower surface of the hollow air storage plate, and the inner walls of the exhaust holes are provided with threads, and the hollow air storage plate is threadedly connected to the air injection pipe through the exhaust holes.

Preferably, the outer surface of the air jet pipe is covered with a rubber pad, and the outer surface of the rubber pad is in contact with the inner wall of the filter bag.

Preferably, a circular hole is opened in the middle of the upper surface of the shell, and the gas pipeline passes through the upper surface of the shell through the circular hole.

Preferably, a first baffle and a second baffle are fixed to the outer side of the gas pipeline, and the second baffle is arranged parallel to and below the first baffle, and the lower surface of the first baffle and the upper surface of the second baffle are both covered with sealing gaskets.

Preferably, a dust collecting plate is provided below the filter assembly, a discharge port is provided in the middle of the lower surface of the dust collecting plate, and a collection box is provided below the discharge port.

Preferably, a sealing door is connected to the front surface of the shell via a hinge, and a handle is installed on the front surface of the sealing door.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model uses the longitudinal frame, the slide, the screw and the servo motor in coordination, so that the movable block, the horizontal plate, the compressed air pump, the gas pipeline and the jet pipe have the lifting function. The jet pipe can be inserted into the upper end of the filter bag when it descends. The compressed gas generated by the compressed air pump is completely introduced into the filter bag through the gas pipeline and the jet pipe, so that the compressed gas is not wasted during the transportation process. After the compressed gas enters the filter bag, the dust on the surface is washed off. After the filter bag is filtered, the jet pipe is separated from the filter bag, so that the cleaning effect of the filter bag is enhanced without affecting the discharge of the filtered gas.

2. In the utility model, the outer surface of the jet pipe is covered with a rubber pad, which enhances the seal between the jet pipe and the upper end of the filter bag, so that the compressed gas can be completely introduced into the filter bag, further improving the cleaning effect of the filter bag. Through the arrangement of the first baffle plate, the second baffle plate and the sealing pad, a seal is provided between the gas pipeline and the circular hole, reducing the probability of external dust entering the shell through the circular hole.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the utility model;

Fig. 2 is a schematic diagram of the structure of the utility model;

FIG3 is a schematic diagram of the structure of the gas pipeline of the utility model in a descending state;

FIG4 is an enlarged structural schematic diagram of point A in FIG2 of the present invention;

FIG5 is an enlarged schematic diagram of the structure of point B in FIG3 of the present invention.

In the figure: 1. shell; 2. air inlet pipe; 3. filter assembly; 301. fixing frame; 302. filter bag; 303. circular ring plate; 304. screw; 4. hollow air storage plate; 5. jet pipe; 6. rubber pad; 7. air pipeline; 8. compressed air pump; 9. round hole; 10. vertical frame; 11. slide groove; 12. screw rod; 13. servo motor; 14. movable block; 15. horizontal plate; 16. exhaust pipe; 17. dust collecting plate; 18. discharge port; 19. collection box; 20. sealing door; 21. handle; 22. controller; 23. first baffle plate; 24. second baffle plate; 25. sealing pad.

Detailed ways

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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

The following describes an embodiment of the utility model based on its overall structure.

Please refer to Figures 1-5, a blowing device for a bag filter includes a shell 1, a filter assembly 3 and a vertical frame 10. The left surface of the shell 1 is equipped with an air inlet pipe 2, and the filter assembly 3 is installed inside the shell 1. The filter assembly 3 includes a fixing frame 301, a filter bag 302, a circular plate 303 and screws 304. The edge of the fixing frame 301 is welded to the inner wall of the shell 1, and the inside of the fixing frame 301 is penetrated by the filter bag 302. The outer side of the upper end of the filter bag 302 is integrally installed with a circular plate 303, and the inside of the circular plate 303 is penetrated by screws 304. The exhaust gas is introduced into the shell 1 through the air inlet pipe 2, and the exhaust gas is discharged from the shell 1. The air is filtered when passing through the filter bag 302. The filter bag 302 is assembled inside the fixing frame 301 through the circular plate 303 and the screw 304, and the filter bag 302 and the fixing frame 301 are detachable. When the filter bag 302 is damaged, the screw 304 can be unscrewed counterclockwise to facilitate timely replacement of the filter bag 302. A hollow air storage plate 4 is arranged parallel to the top of the filter assembly 3, and an air jet 5 is installed on the lower surface of the hollow air storage plate 4. A plurality of exhaust holes are arranged on the lower surface of the hollow air storage plate 4, and the inner wall of the exhaust hole is provided with a thread, and the hollow air storage plate 4 is threadedly connected to the air jet 5 through the exhaust hole. The air jet 5 The number of is equal to the number of filter bags 302 and corresponds one to one. The hollow air storage plate 4 and the air jet pipe 5 are fixed by threaded connection and are detachable. The upper end of the hollow air storage plate 4 is connected to the air delivery pipeline 7, and the upper end of the air delivery pipeline 7 is connected to the compressed air pump 8. The outer surface of the air jet pipe 5 is covered with a rubber pad 6, and the outer surface of the rubber pad 6 is in contact with the inner wall of the filter bag 302. When the filter bag 302 needs to be cleaned, the air jet pipe 5 can be controlled to descend until the air jet pipe 5 is inserted into the filter bag 302. The compressed gas is injected into the filter bag 302 through the air jet pipe 5, which can effectively adhere to the surface of the filter bag 302 The dust is shaken off to complete the cleaning of the filter bag 302. Since the jet pipe 5 is inserted into the filter bag 302 and the rubber pad 6 strengthens the seal between the jet pipe 5 and the upper end of the filter bag 302, the compressed gas can be completely introduced into the filter bag 302, which is beneficial to improving the cleaning effect of the filter bag 302. A circular hole 9 is opened in the middle of the upper surface of the shell 1, and the gas pipeline 7 passes through the upper surface of the shell 1 through the circular hole 9. The compressed air pump 8 introduces the compressed gas into the hollow gas storage plate 4 through the gas pipeline 7. The inner wall size of the circular hole 9 is larger than the outer size of the gas pipeline 7. Therefore, when the gas pipeline 7 is raised or lowered, it will not be scratched with the upper surface of the shell 1.

The longitudinal frame 10 is welded to the left side of the top end of the shell 1, and a slide groove 11 is opened inside the longitudinal frame 10. A screw rod 12 is rotatably connected inside the slide groove 11, and the top end of the screw rod 12 passes through the upper surface of the longitudinal frame 10 through a bearing and is connected to a servo motor 13. The outer side of the screw rod 12 is threadedly connected to a movable block 14, and a transverse plate 15 is welded to the end of the movable block 14 away from the longitudinal frame 10. An exhaust pipe 16 is installed on the right side surface of the shell 1, and a controller 22 is arranged below the exhaust pipe 16. A first baffle 23 and a second baffle 24 are fixed to the outer side of the gas pipeline 7, and the second baffle 24 is arranged parallel to the bottom of the first baffle 23. The lower surface of the first baffle 23 and the upper surface of the second baffle 24 are covered with a sealing gasket 25. When the gas pipeline 7 is in a stationary state, the first baffle 2 3 covers the circular hole 9 to prevent external dust from entering the inner side of the filter bag 302 through the circular hole 9 and affecting the filtering effect of the filter bag 302. When the gas pipeline 7 descends to realize the cleaning operation of the filter bag 302, the second baffle plate 24 abuts against the circular hole 9, which can also prevent external dust from entering. A dust collecting plate 17 is arranged below the filter assembly 3, and a discharge port 18 is arranged in the middle of the lower surface of the dust collecting plate 17. A collection box 19 is arranged below the discharge port 18. The dust shaken off by the compressed gas falls into the collection box 19 through the dust collecting plate 17 and the discharge port 18 for unified collection. The front surface of the shell 1 is connected with a sealing door 20 through a hinge, and a handle 21 is installed on the front surface of the sealing door 20. Opening the sealing door 20 is convenient for taking out the collection box 19 for cleaning and convenient for replacing the filter bag 302.

Working principle: When in use, the exhaust gas is first introduced into the shell 1 through the air inlet pipe 2, and the exhaust gas is filtered when passing through the filter bag 302. The filtered exhaust gas passes through the filter bag 302 and is discharged from the exhaust pipe 16. When the filter bag 302 is used for a long time and its surface is blocked by dust, the servo motor 13 is started through the controller 22, and the servo motor 13 drives the screw rod 12 to rotate, so that the movable block 14 descends, thereby driving the cross plate 15, the compressed air pump 8, the air pipeline 7, the hollow air storage plate 4 and the jet pipe 5 to descend until the jet pipe 5 descends and inserts into the filter bag 302. The power of the compressed air pump 8 is turned on, and the compressed air pump 8 introduces the compressed gas into the hollow air storage plate 4 through the air pipeline 7. , and then injected into the filter bag 302 through the air jet pipe 5 by the hollow air storage plate 4, which can effectively shake off the dust adhered to the surface of the filter bag 302 and complete the cleaning of the filter bag 302. Since the air jet pipe 5 is inserted into the filter bag 302, the compressed gas can be completely introduced into the filter bag 302, reducing the waste of compressed gas. After the filter bag 302 is cleaned, the servo motor 13 controls the air jet pipe 5 to rise again, so that the air jet pipe 5 is separated from the filter bag 302, which is convenient for the discharge of the filtered gas. The dust shaken off by the compressed gas falls into the collection box 19 through the dust collecting plate 17 and the discharge port 18 for unified collection. When the device is used up, open the sealing door 20 to take out the collection box 19 for cleaning.

The device is controlled automatically by the controller 22. The control circuit of the controller 22 can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. Therefore, the control method and circuit connection of this device will not be explained in detail.

The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a jetting device of sack cleaner, includes casing (1), filter component (3) and longitudinal frame (10), its characterized in that: the air inlet pipe (2) is arranged on the left side surface of the shell (1), the filter assembly (3) is arranged in the shell (1), a hollow air storage plate (4) is arranged above the filter assembly (3) in parallel, an air jet pipe (5) is arranged on the lower surface of the hollow air storage plate (4), the upper end of the hollow air storage plate (4) is connected with an air pipeline (7), and the upper end of the air pipeline (7) is connected with a compressed air pump (8);

the utility model discloses a solar energy power generation device, including casing (1), including casing (10), spout (11) have been seted up in the top left side of casing (1) to longitudinal frame (10), the inside rotation of spout (11) is connected with lead screw (12), and the upper surface that the top of lead screw (12) runs through longitudinal frame (10) through the bearing is connected with servo motor (13), the outside threaded connection of lead screw (12) has movable block (14), the one end welding that longitudinal frame (10) was kept away from to movable block (14) has diaphragm (15), right side surface mounting of casing (1) has blast pipe (16), and the below of blast pipe (16) is provided with controller (22).

2. The blowing device of a bag-type dust collector according to claim 1, wherein: the filter assembly (3) comprises a fixing frame (301), a filter bag (302), a circular ring plate (303) and screws (304), wherein the edge of the fixing frame (301) is welded with the inner wall of the shell (1), the filter bag (302) is penetrated in the fixing frame (301), the circular ring plate (303) is integrally installed on the outer side of the upper end of the filter bag (302), and the screws (304) are penetrated in the circular ring plate (303).

3. The blowing device of a bag-type dust collector according to claim 1, wherein: the lower surface of the hollow air storage plate (4) is provided with a plurality of exhaust holes in an arrangement mode, threads are arranged on the inner wall of each exhaust hole, and the hollow air storage plate (4) is in threaded connection with the air spraying pipe (5) through the exhaust holes.

4. The blowing device of a bag-type dust collector according to claim 1, wherein: the outer surface of the air nozzle (5) is covered with a rubber pad (6), and the outer surface of the rubber pad (6) is attached to the inner wall of the filter bag (302).

5. The blowing device of a bag-type dust collector according to claim 1, wherein: a round hole (9) is formed in the middle of the upper surface of the shell (1), and the gas pipeline (7) penetrates through the upper surface of the shell (1) through the round hole (9).

6. The blowing device of a bag-type dust collector according to claim 1, wherein: the outside of gas-transmission pipeline (7) is fixed with first baffle (23) and second baffle (24), and second baffle (24) parallel arrangement in the below of first baffle (23), the lower surface of first baffle (23) and the upper surface of second baffle (24) all are covered with sealed pad (25).

7. The blowing device of a bag-type dust collector according to claim 1, wherein: the dust collecting device is characterized in that a dust collecting plate (17) is arranged below the filtering component (3), a discharge opening (18) is formed in the middle of the lower surface of the dust collecting plate (17), and a collecting box (19) is arranged below the discharge opening (18).

8. The blowing device of a bag-type dust collector according to claim 1, wherein: the front surface of the shell (1) is connected with a sealing door (20) through a hinge, and a handle (21) is arranged on the front surface of the sealing door (20).