A long bag pulse bag dust cleaning pressure stabilizing dust collector

Abstract

The utility model relates to a kind of long bag pulse cloth bag dust cleaning is used to steady pressure dust catcher, including box, and the support plate of fixed connection in the box one side, the gas pipe is passed through and is arranged in the right side of the box, and the box upper end is fixedly connected with differential pressure transmitter, the support plate upper end is fixedly connected with PLC control operation box, PLC control operation box one side is inserted with two wires, one wire is inserted in the differential pressure transmitter inside, away from the end of the PLC control operation box, another wire one end is inserted with automatic pressure regulating valve, the automatic pressure regulating valve both sides are evenly provided with pipe, the air blower is provided in the left of the automatic pressure regulating valve, one pipe is connected and is arranged in the air blower inside, the automatic pressure regulating valve right side is provided with gas pocket, another pipe is connected and is arranged in gas pocket inside. The long bag pulse cloth bag dust cleaning is used to steady pressure dust catcher, by the automatic pressure regulating valve and differential pressure transmitter before gas pocket can control the injection pressure, improve the accuracy of injection.

Description

Technical Field

[0001] This utility model relates to the field of baghouse dust collection technology, specifically a voltage-stabilized dust collector for long-bag pulse bag cleaning. Background Technology

[0002] Dust removal refers to the process of removing particulate matter from a dust-laden airflow to purify the gas.

[0003] Existing long-bag pulse jet bag cleaning mechanisms typically involve air entering a buffer air tank from an air source, releasing high-pressure air by instantaneously opening a pulse valve, and then cleaning the bag by directing the nozzle head of the jet pipe towards the bag openings. However, this cleaning mechanism cannot control the jet pressure according to the degree of dust accumulation on the inner wall of the bag, thus failing to achieve precise removal of dust accumulated on the inner wall of the bag.

[0004] Therefore, a long-bag pulse bag filter dust collector with stable pressure is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pressure-stabilized dust collector for long-bag pulse bag cleaning, which can solve problems such as the inability of pulse valves to control the jet pressure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a housing and a support plate fixedly connected to one side of the housing. An air outlet pipe is installed through the right side of the housing, and a differential pressure transmitter is fixedly connected to the upper end of the housing. A PLC control box is fixedly connected to the upper end of the support plate. Two wires are inserted into one side of the PLC control box. One end of one wire, away from the PLC control box, is inserted into the differential pressure transmitter, and the other end is inserted into an automatic pressure regulating valve. Conduits are installed on both sides of the automatic pressure regulating valve. A blower is installed to the left of the automatic pressure regulating valve, and one conduit connects to the inside of the blower. An air tank is installed to the right of the automatic pressure regulating valve, and another conduit connects to the inside of the air tank. A pulse valve is installed at the upper end of the air tank, and an outlet pipe is installed at the lower end of the air tank. Several pulse valves are arranged symmetrically around the outlet pipe.

[0007] Preferably, an air inlet pipe is provided through the left side of the housing, and a dust detector is fixedly connected to the inner wall of the air inlet pipe. The outlet pipe is provided through the inside of the air bag, and one end of the outlet pipe is connected to the output end of the pulse valve. Several nozzles are provided around the outlet pipe, and the nozzles are symmetrically distributed.

[0008] Preferably, a cloth bag is provided below each of the nozzles, a fixing plate is fixedly provided around the cloth bag, and both sides of the fixing plate are fixedly connected to the inner wall of the box. A dust hopper is provided below the cloth bag.

[0009] Preferably, a T-shaped slider is fixedly connected to the lower end of the ash hopper, a groove is provided around the T-shaped slider, and the T-shaped slider and the groove are slidably connected. A pull rod is fixedly connected to one side of the T-shaped slider, and a piston is slidably provided around the pull rod, and the piston is embedded inside the box.

[0010] Preferably, L-shaped plates are snapped onto both sides of the ash hopper, and connecting rods are fixedly connected to the lower ends of the two L-shaped plates. A rotating disc is provided below the ash hopper.

[0011] Preferably, the upper end of the rotating disk has two arc-shaped grooves that are symmetrically distributed. The connecting rod is slidably connected inside the arc-shaped grooves. A motor is provided below the rotating disk, and the rotating disk is fixedly connected to the output end of the motor.

[0012] Preferably, a sliding plate is fitted and connected to the right side of the box body, and a handle is fixedly connected to one side of the sliding plate. The sliding plate is slidably connected inside the box body.

[0013] Compared with the prior art, this utility model provides a voltage-stabilized dust collector for long bag pulse bag cleaning, which has the following beneficial effects:

[0014] 1. This long-bag pulse bag dust collector with pressure stabilization can achieve the effect of dust removal on the inner wall of the bag through the pulse valve, thus improving the efficiency of bag dust removal.

[0015] 2. This long-bag pulse bag dust collector with pressure stabilization has an automatic pressure regulating valve and differential pressure transmitter installed before the air tank to control the pulse jet pressure, thus improving the accuracy of the pulse jet.

[0016] 3. This long-bag pulse bag dust collector with stable pressure is equipped with a dust monitor through the dust collector's air inlet pipe. The PLC control box can automatically adjust the pulse valve blowing interval according to the dust concentration.

[0017] 4. This long-bag pulse bag dust collector with pressure stabilization can remove dust accumulated inside the ash hopper by setting an L-shaped plate, thus improving the efficiency of dust removal in the ash hopper. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a long-bag pulse bag dust collector with stabilized pressure for cleaning.

[0019] Figure 2This is a cross-sectional view of a pressure-stabilized dust collector for long-bag pulse bag cleaning according to the present invention.

[0020] Figure 3 This is a schematic diagram of the clamping and fixing method of this utility model;

[0021] Figure 4 This is a schematic diagram of the sliding mechanism structure of this utility model.

[0022] In the diagram: 1. Housing; 2. Support plate; 3. PLC control box; 4. Air inlet pipe; 5. Dust detector; 6. Blower; 7. Automatic pressure regulating valve; 8. Air tank; 9. Pulse valve; 10. Differential pressure transmitter; 11. Air outlet pipe; 12. Through pipe; 13. Nozzle; 14. Filter bag; 15. Dust hopper; 16. Sliding plate; 17. L-shaped plate; 18. Slide groove; 19. T-shaped slider; 20. Pull rod; 21. Rotary disc; 22. Connecting rod; 23. Motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1 - Figure 4 This embodiment of a long-bag pulse bag dust collector includes a housing 1 and a support plate 2 fixedly connected to one side of the housing 1. An air outlet pipe 11 is provided through the right side of the housing 1, and a differential pressure transmitter 10 is fixedly connected to the upper end of the housing 1. A PLC control operation box 3 is fixedly connected to the upper end of the support plate 2. Two wires are inserted into one side of the PLC control operation box 3. One end of one wire away from the PLC control operation box 3 is inserted into the differential pressure transmitter 10, and one end of the other wire is inserted into an automatic pressure regulating valve 7. Conduits are provided on both sides of the automatic pressure regulating valve 7. A blower 6 is provided to the left of the automatic pressure regulating valve 7, and one conduit is connected to the inside of the blower 6. An air tank 8 is provided to the right of the automatic pressure regulating valve 7, and another conduit is connected to the inside of the air tank 8. A pulse valve 9 is provided at the upper end of the air tank 8, and an outlet pipe 12 is provided at the lower end of the air tank 8. Several pulse valves 9 are provided around the outlet pipe 12, and the several pulse valves 9 are symmetrically distributed.

[0026] An air inlet pipe 4 is installed through the left side of the housing 1. A dust detector 5 is fixedly connected to the inner wall of the air inlet pipe 4. An outlet pipe 12 is installed through the inside of the air tank 8. One end of the outlet pipe 12 is connected to the output end of the pulse valve 9. Several nozzles 13 are connected around the outlet pipe 12. The nozzles 13 are symmetrically distributed.

[0027] Several nozzles 13 are provided with a cloth bag 14 below each bag 14. A fixing plate is fixedly installed around the bag 14. Both sides of the fixing plate are fixedly connected to the inner wall of the box 1. A ash hopper 15 is provided below the bag 14.

[0028] The dust removal of the inner wall of the filter bag 14 by the pulse valve 9 and the control of the differential pressure transmitter 10 and the automatic pressure regulating valve 7 by the PLC control box 3 are existing technologies, and therefore are not described in detail in this embodiment.

[0029] Gas is supplied to the air tank 8 by the blower 6, and high-pressure gas is released instantaneously by the pulse valve 9. The gas is then directed through the nozzle 13 of the outlet pipe 12 onto the filter bag 14 to achieve the dust removal effect. An automatic pressure regulating valve 7 (which can be controlled by a PLC) and a differential pressure transmitter 10 are installed before the air source enters the air tank 8 to control the blowing pressure. Differential pressure transmitters 10 are installed before and after the dust collector to monitor the pressure difference. The differential pressure transmitter 10 is set to a fixed differential pressure value, such as 1000 Pa. The dust collector body has n pulse valves 9. When the differential pressure resistance of the dust collector is less than 1000 Pa, pulse valves 9 do not clean. When the dust collector resistance equals 1000 Pa, the PLC control box 3 starts the cleaning program, and pulse valve #1 of the n pulse valves 9 is cleaned. After cleaning pulse valve #1 9, if the resistance is less than 1000 Pa, cleaning stops. If it is still greater than or equal to 1000 Pa, pulse valve #2 is cleaned, and so on, until the resistance is less than 1000 Pa. Pa, when the resistance of pulse valve 9 out of n pulse valves 9 is less than 1000Pa after cleaning, the cleaning stops. When the resistance is equal to or greater than 1000Pa, the second pulse valve 9 is started for cleaning, and so on, until all n pulse valves 9 are cleaned, then the cleaning returns to pulse valve 9 9. Cleaning air source pressure control: The air source inlet pipe is equipped with an automatic pressure regulating valve 7 and a differential pressure transmitter 10. When the resistance is equal to or greater than the set value of 1000Pa, the PLC control operation box 3 starts the cleaning program. However, when all n pulse valves 9 are cleaned, if the resistance is still greater than 1000Pa, the PLC control operation box 3 automatically increases the blowing pressure by 0.02MPa by controlling the automatic pressure regulating valve 7 to continue cleaning as described above. If the above conditions are met, the pressurization is stopped and the blowing pressure is stabilized. If the resistance is not less than 1000Pa after one cleaning cycle, the pressurization continues, and so on, until the resistance is less than 1000Pa (but the added blowing pressure cannot exceed the set value of 0.45MPa).

[0030] Pulse valve 9 pulse interval control: The pulse valve 9 pulse interval refers to the time interval between the completion of cleaning by pulse valve #1 and the start of cleaning by pulse valve #2, generally between 15 and 120 seconds (at least not less than the time it takes for the air source to fill the air tank 8 and reach the cleaning pressure). A dust detector 5 is installed at the dust collector inlet, and the PLC control box 3 can automatically adjust the pulse valve 9 pulse interval according to the dust concentration. When the dust concentration is less than 3 g / m3 for a long time and the dust collector resistance is stable, the pulse valve 9 can spray for more than 60 seconds; when the dust concentration is between 3 and 10 g / m3 for a long time and the dust collector resistance is stable, the pulse valve 9 can spray for 30 to 60 seconds; when the dust concentration is between 10 and 20 g / m3 for a long time and the dust collector resistance is stable, the pulse valve 9 can spray for 20 to 30 seconds; when the dust concentration is between 20 and 50 g / m3 or above for a long time and the dust collector resistance is stable, the pulse valve 9 can spray for 15 to 20 seconds.

[0031] A T-shaped slider 19 is fixedly connected to the lower end of the ash hopper 15. A groove 18 is provided around the T-shaped slider 19, and the T-shaped slider 19 and the groove 18 are slidably connected. A pull rod 20 is fixedly connected to one side of the T-shaped slider 19. A piston is slidably provided around the pull rod 20, and the piston is embedded inside the box 1.

[0032] Both sides of the ash hopper 15 are fitted with L-shaped plates 17, and the lower ends of the two L-shaped plates 17 are fixedly connected with connecting rods 22. A rotating disk 21 is installed below the ash hopper 15.

[0033] Two arc-shaped grooves are provided through the upper end of the rotating disk 21, and the two arc-shaped grooves are symmetrically distributed. The connecting rod 22 is slidably connected inside the arc-shaped grooves. A motor 23 is provided below the rotating disk 21, and the rotating disk 21 is fixedly connected to the output end of the motor 23.

[0034] A sliding plate 16 is fitted and connected to the right side of the box 1. A handle is fixedly connected to one side of the sliding plate 16. The sliding plate 16 is slidably connected inside the box 1.

[0035] When too much dust accumulates inside the ash hopper 15, pulling the pull rod 20 causes the T-shaped slider 19 to slide along the pull rod 20 within the groove 18, preventing the ash hopper 15 from jamming during movement. Two symmetrically distributed L-shaped plates 17 are arranged around the ash hopper 15. The forward rotation of the motor 23 drives the rotating disk 21 to rotate forward. During this rotation, the two connecting rods 22 slide within the two arc-shaped grooves towards the center of the rotating disk 21. Simultaneously, the two L-shaped plates 17 are pulled inward to secure the ash hopper 15. When a lot of dust accumulates inside the ash hopper 15, the motor 23 reverses, and the two L-shaped plates 17 expand outward to loosen the ash hopper 15. At the same time, by pushing the sliding plate 16 upward, the ash hopper 15 can be pulled out of the box 1 by pulling the pull rod 20. Meanwhile, the dust accumulated inside the ash hopper 15 is removed manually, thus cleaning the dust accumulated inside the ash hopper 15.

[0036] The working principle of the above embodiments is as follows:

[0037] In use, the dust removal of the long bag pulse bag dust collector is achieved by the air source entering the buffer air tank 8, the pulse valve 9 opening instantaneously to release high-pressure air, and the air is directed at the filter bag 14 through the nozzle 13 of the outlet pipe 12 to achieve the dust removal effect. Before the air source enters the air tank 8, there is an automatic pressure regulating valve 7 and a differential pressure transmitter 10 to control the pulse pressure and achieve the effect of accurately removing the dust accumulated on the inner wall of the filter bag 14.

[0038] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

Claims

1. A pressure-stabilized dust collector for long-bag pulse bag cleaning, comprising a housing (1) and a support plate (2) fixedly connected to one side of the housing (1), characterized in that: An air outlet pipe (11) is installed through the right side of the housing (1), and a differential pressure transmitter (10) is fixedly connected to the upper end of the housing (1). A PLC control operation box (3) is fixedly connected to the upper end of the support plate (2). Two wires are inserted into one side of the PLC control operation box (3). One end of the wire away from the PLC control operation box (3) is inserted into the differential pressure transmitter (10), and one end of the other wire is inserted into an automatic pressure regulating valve (7). Both sides of the automatic pressure regulating valve (7) are... A conduit is provided, and a blower (6) is provided to the left of the automatic pressure regulating valve (7). One conduit is connected to the inside of the blower (6). An air tank (8) is provided to the right of the automatic pressure regulating valve (7). Another conduit is connected to the inside of the air tank (8). A pulse valve (9) is provided at the upper end of the air tank (8). An outlet pipe (12) is provided at the lower end of the air tank (8). Several pulse valves (9) are provided around the outlet pipe (12). The several pulse valves (9) are symmetrically distributed.

2. The voltage-stabilized dust collector for long-bag pulse bag cleaning according to claim 1, characterized in that: An air inlet pipe (4) is provided through the left side of the housing (1). A dust detector (5) is fixedly connected to the inner wall of the air inlet pipe (4). An outlet pipe (12) is provided through the inside of the air bag (8). One end of the outlet pipe (12) is connected to the output end of the pulse valve (9). Several nozzles (13) are connected around the outlet pipe (12). The nozzles (13) are symmetrically distributed.

3. A voltage-stabilized dust collector for long-bag pulse bag cleaning according to claim 2, characterized in that: A cloth bag (14) is provided below each of the nozzles (13). A fixing plate is fixedly provided around the cloth bag (14). Both sides of the fixing plate are fixedly connected to the inner wall of the box (1). A ash hopper (15) is provided below the cloth bag (14).

4. A voltage-stabilized dust collector for long-bag pulse bag cleaning according to claim 3, characterized in that: The lower end of the ash hopper (15) is fixedly connected to a T-shaped slider (19). The T-shaped slider (19) is provided with a groove (18) around its periphery, and the T-shaped slider (19) is slidably connected to the groove (18). A pull rod (20) is fixedly connected to one side of the T-shaped slider (19), and a piston is slidably provided around the pull rod (20), and the piston is embedded inside the box (1).

5. A voltage-stabilized dust collector for long-bag pulse bag cleaning according to claim 4, characterized in that: Both sides of the ash hopper (15) are fitted with L-shaped plates (17), and the lower ends of the two L-shaped plates (17) are fixedly connected with connecting rods (22). A rotating disk (21) is provided below the ash hopper (15).

6. A voltage-stabilized dust collector for long-bag pulse bag cleaning according to claim 5, characterized in that: The upper end of the rotating disk (21) is provided with two arc-shaped grooves, and the two arc-shaped grooves are symmetrically distributed. The connecting rod (22) is slidably connected inside the arc-shaped grooves. A motor (23) is provided below the rotating disk (21), and the rotating disk (21) is fixedly connected to the output end of the motor (23).

7. A voltage-stabilized dust collector for long-bag pulse bag cleaning according to claim 1, characterized in that: A sliding plate (16) is fitted and connected to the right side of the box (1), and a handle is fixedly connected to one side of the sliding plate (16). The sliding plate (16) is slidably connected inside the box (1).

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