Pulse cloth bag dust removal device

Abstract

The utility model discloses a pulsed jet cloth bag dust removal device, relates to pulsed jet cloth bag dust removal technical field, including base, the top of base is provided with two shell, the bottom of two shell is equipped with the fixed pipe, and the outer wall of fixed pipe is communicated with two ash discharge pipe, the bottom of fixed pipe is equipped with the electric push rod, and the electric push rod is equipped with the fixed pipe. And the output ends of the electric push rods extend into the fixing pipes and are provided with blocking plugs, the interiors of the bottom ends of the two outer shells are provided with filtering bins, the interiors of the top ends of the outer shells are provided with exhaust bins, and one sides of the two outer shells are provided with a second mounting box. During dust removal, the electric push rod is started to drive the blocking plug to move downwards, so that the dust discharge pipe is communicated with the filter bin, dust can be discharged from the dust discharge pipe, and after dust removal is finished, the blocking plug can block the dust discharge pipe, so that the dust at the dust discharge pipe is prevented from flowing back.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse bag dust removal, in particular to a pulse bag dust removal device. Background Technique

[0002] Pulse bag dust removal equipment is a common dust removal equipment. After the dust-containing gas enters the equipment, it can be filtered by the cloth bag, so as to block the dust and discharge clean air. When the dust on the surface of the filter bag continuously increases and causes the resistance of the equipment to rise to the set value, the time relay (or differential pressure controller) outputs a signal, and the program controller starts to work, opening the pulse valves one by one, so that the compressed air blows and cleans the filter bag through the nozzle, making the filter bag suddenly expand. Under the action of the reverse air flow, the dust attached to the surface of the filter bag quickly detaches from the filter bag and falls into the ash hopper. However, in many existing technologies when in use, after the ash discharge ends and the dust removal operation is carried out again, due to the existence of the air flow, it is easy to suck up the dust in the ash hopper and make it move back to the vicinity of the filter bag again, resulting in a shorter cleaning cycle of the filter bag. In view of this, in-depth research is carried out on the above problems, and thus this case is generated. Content of the Utility Model

[0003] The purpose of the utility model is to provide a pulse bag dust removal device to solve the problem of easy dust backflow at the ash hopper mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A pulse bag dust removal device, including a base, two outer shells are arranged at the top end of the base, fixed pipes are installed at the bottom ends of the two outer shells, and two dust discharge pipes are communicated with the outer walls of the fixed pipes. Electric push rods are installed at the bottom ends of the fixed pipes, and the output ends of the electric push rods extend into the interior of the fixed pipes and are equipped with blocking plugs. Filter chambers are opened inside the bottom ends of the two outer shells, and exhaust chambers are opened inside the top ends of the outer shells. A second installation box is installed on one side of the two outer shells, and a controller is installed inside the second installation box.

[0005] Preferably, a plurality of dust removal cloth bags are installed inside the filter chamber. A pulse valve pipe is arranged inside the outer shell, and the input end of the pulse valve pipe extends to the outside of the exhaust chamber. A plurality of blowing pipes are installed at the output end of the pulse valve pipe, and one end of the blowing pipe extends into the interior of the dust removal cloth bag.

[0006] Preferably, a first installation box is installed at the top end of the second installation box. A three-way solenoid valve is installed inside the first installation box. An air inlet pipe is installed at the input end of the three-way solenoid valve, and one end of the air inlet pipe extends to the outside of the first installation box. Two air supply pipes are installed at the two output ends of the three-way solenoid valve, and one end of the two air supply pipes extends into the interiors of the two outer shells respectively.

[0007] Preferably, exhaust pipes are installed on one side of the outer housing, and the input ends of the exhaust pipes are communicated with the inside of the exhaust chamber. Airflow detection sensors are installed on the outer walls of the exhaust pipes, and the detection ends of the airflow detection sensors extend into the exhaust pipes.

[0008] Preferably, a fixing ring is fixed at the bottom end of the inner wall of the filter chamber, and the height of the outer side of the top end of the fixing ring is greater than the height of the inner side of the top end of the fixing ring.

[0009] Preferably, the inner diameter of the fixing ring is smaller than the diameter of the blocking plug, and the bottom end of the fixing ring fits with the top end of the blocking plug.

[0010] Preferably, a plurality of support rods are installed at the bottom ends of the outer housing, and the bottom ends of the support rods are fixed to the top end of the base. The connection mode between the fixed pipe and the outer housing is detachable.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] During dust cleaning, start the electric push rod to drive the blocking plug to move downwards, so that the ash discharge pipe communicates with the filter chamber, and the dust can be discharged from the ash discharge pipe. After the dust cleaning is completed, the blocking plug can be made to block the ash discharge pipe, thereby preventing the dust at the ash discharge pipe from flowing back;

[0013] Use a three-way solenoid valve to open and close the two air supply pipes, so that one of the two air supply pipes is closed and the other is communicated with the air inlet pipe. Thus, when one of the devices is performing dust cleaning and there is no air flow passing through inside, another device can participate in the dust removal work, ensuring that the dust removal work does not stop due to dust cleaning. The two devices work alternately, which can provide sufficient time for the dust cleaning process of the devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a front sectional structure schematic diagram of the present utility model;

[0015] Figure 2 is a top view structure schematic diagram of the present utility model;

[0016] Figure 3 is of the present utility model Figure 1 enlarged structure schematic diagram at A in;

[0017] Figure 4 is a top sectional structure schematic diagram of the second installation box of the present utility model.

[0018] In the figure: 1. Exhaust chamber; 2. Pulse valve pipe; 3. Blowing pipe; 4. Dust removal cloth bag; 5. First installation box; 6. Air supply pipe; 7. Second installation box; 8. Support rod; 9. Base; 10. Electric push rod; 11. Fixed pipe; 12. Ash discharge pipe; 13. Outer shell; 14. Filter chamber; 15. Exhaust pipe; 16. Airflow detection sensor; 17. Three-way solenoid valve; 18. Intake pipe; 19. Fixed ring; 20. Blocking plug; 21. Controller. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment: Please refer to Figures 1-4 , a pulse bag dust removal device, including a base 9, two outer shells 13 are arranged at the top end of the base 9, two fixed pipes 11 are installed at the bottom ends of the two outer shells 13, and two ash discharge pipes 12 are communicated with the outer walls of the fixed pipes 11. Electric push rods 10 are installed at the bottom ends of the fixed pipes 11, and the output ends of the electric push rods 10 extend into the fixed pipes 11 and are installed with blocking plugs 20. Filter chambers 14 are opened inside the bottom ends of the two outer shells 13, and exhaust chambers 1 are opened inside the top ends of the outer shells 13. A second installation box 7 is installed on one side of the two outer shells 13, and a controller 21 is installed inside the second installation box 7;

[0021] A plurality of dust removal cloth bags 4 are installed inside the filter chamber 14, a pulse valve pipe 2 is arranged inside the outer shell 13, the input end of the pulse valve pipe 2 extends to the outside of the exhaust chamber 1, a plurality of blowing pipes 3 are installed at the output end of the pulse valve pipe 2, and one end of the blowing pipe 3 extends into the dust removal cloth bag 4;

[0022] Specifically, as Figure 1 shown, during dust cleaning, start the electric push rod 10 to drive the blocking plug 20 to move downward, so that the ash discharge pipe 12 communicates with the filter chamber 14, and the dust can be discharged from the ash discharge pipe 12. After the dust cleaning is completed, the blocking plug 20 can be made to block the ash discharge pipe 12, thereby preventing the dust at the ash discharge pipe 12 from flowing back.

[0023] A fixed ring 19 is fixed at the bottom end of the inner wall of the filter chamber 14, and the height of the outer side of the top end of the fixed ring 19 is greater than the height of the inner side of the top end of the fixed ring 19;

[0024] The inner diameter of the fixed ring 19 is smaller than the diameter of the blocking plug 20, and the bottom end of the fixed ring 19 coincides with the top end of the blocking plug 20;

[0025] A plurality of support rods 8 are installed at the bottom ends of the outer casing 13, and the bottom ends of the support rods 8 are fixed to the top end of the base 9. The connection mode between the fixed pipe 11 and the outer casing 13 is a detachable connection;

[0026] Specifically, as Figure 1 and Figure 3 shown, after the air flow inside the pulse valve pipe 2 sprays out from the blowpipe 3 towards the dust removal cloth bag 4, the dust outside the dust removal cloth bag 4 shakes off and slides down along the inner wall of the filter bin 14 and the fixing ring 19 into the fixed pipe 11, and is discharged along the ash discharge pipe 12. At the same time, the fixed pipe 11 of the device can be detached from the outer casing 13, which is convenient for maintaining and replacing the internal parts.

[0027] The top end of the second installation box 7 is installed with a first installation box 5. A three-way solenoid valve 17 is installed inside the first installation box 5. An air inlet pipe 18 is installed at the input end of the three-way solenoid valve 17, and one end of the air inlet pipe 18 extends to the outside of the first installation box 5. Both output ends of the three-way solenoid valve 17 are installed with air supply pipes 6, and one end of each of the two air supply pipes 6 extends into the two outer casings 13 respectively;

[0028] An exhaust pipe 15 is installed on one side of each of the outer casings 13, and the input end of the exhaust pipe 15 is communicated with the inside of the exhaust chamber 1. An air flow detection sensor 16 is installed on the outer wall of the exhaust pipe 15, and the detection end of the air flow detection sensor 16 extends into the exhaust pipe 15;

[0029] Specifically, as Figure 1 , Figure 2 and Figure 4 shown, the air flow detection sensor 16 can detect the wind speed and wind resistance at the exhaust pipe 15. When it reaches the preset value, the controller 21 controls the opening and closing of the three-way solenoid valve 17, connects the originally closed air supply pipe 6 with the air inlet pipe 18, and closes the originally connected air inlet pipe 18 to prevent the air flow from passing through. This part of the control method and related equipment all belong to relatively mature technologies in the prior art and will not be elaborated here. By controlling the opening and closing of the air supply pipe 6, the two outer casings 13 change their working states, and the two devices work alternately, ensuring that the dust removal work does not stop due to ash cleaning, and there is enough time for the ash cleaning process of the device.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A pulse bag dust removal device, comprising a base (9), characterized in that: Two outer shells (13) are arranged at the top of the base (9); a fixed pipe (11) is installed at the bottom of each of the two outer shells (13); and the outer walls of the fixed pipes (11) are connected to two ash discharge pipes (12); an electric push rod (10) is installed at the bottom of each of the fixed pipes (11); and the output ends of the electric push rods (10) extend into the interior of the fixed pipes (11) and are installed with blocking plugs (20); a filter bin (14) is provided inside the bottom of each of the two outer shells (13); and an exhaust bin (1) is provided inside the top of each of the outer shells (13); a second installation box (7) is installed on one side of the two outer shells (13); and a controller (21) is installed inside the second installation box (7).

2. A pulse bag dust removal device according to claim 1, characterized in that: A plurality of dust removal bags (4) are installed inside the filter bin (14), a pulse valve tube (2) is provided inside the outer shell (13), and the input end of the pulse valve tube (2) extends to the outside of the exhaust bin (1), and a plurality of spray pipes (3) are installed at the output end of the pulse valve tube (2), and one end of the spray pipe (3) extends to the inside of the dust removal bag (4).

3. The pulse bag dust removal device according to claim 1 is characterized in that: The first installation box (5) is installed at the top of the second installation box (7), a three-way solenoid valve (17) is installed inside the first installation box (5), an air intake pipe (18) is installed at the input end of the three-way solenoid valve (17), and one end of the air intake pipe (18) extends to the outside of the first installation box (5), and air supply pipes (6) are installed at both output ends of the three-way solenoid valve (17), and one end of the two air supply pipes (6) respectively extends to the inside of the two outer shells (13).

4. The pulse bag dust removal device according to claim 1, characterized in that: An exhaust pipe (15) is installed on one side of the outer shell (13), and the input end of the exhaust pipe (15) is connected to the interior of the exhaust chamber (1); an airflow detection sensor (16) is installed on the outer wall of the exhaust pipe (15), and the detection end of the airflow detection sensor (16) extends to the interior of the exhaust pipe (15).

5. The pulse bag dust removal device according to claim 1, characterized in that: A fixing ring (19) is fixed to the bottom end of the inner wall of the filter bin (14), and the height of the outer side of the top end of the fixing ring (19) is greater than the height of the inner side of the top end of the fixing ring (19).

6. A pulse bag dust removal device according to claim 5, characterized in that: The inner diameter of the fixing ring (19) is smaller than the diameter of the blocking plug (20), and the bottom end of the fixing ring (19) coincides with the top end of the blocking plug (20).

7. The pulse bag dust removal device according to claim 1, characterized in that: A plurality of support rods (8) are installed at the bottom end of the outer shell (13), and the bottom ends of the support rods (8) are fixed to the top ends of the base (9), and the connection between the fixing tube (11) and the outer shell (13) is a detachable connection.

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