Electric arc dust removal device for tunnel kiln flue

Abstract

The utility model discloses an electric arc dust removal device for a tunnel kiln flue, which comprises a pretreatment box and an electric dust removal box, a gas guide pipe is connected between the pretreatment box and the electric dust removal box, and a fixed disc is fixedly mounted in the gas guide pipe. By adopting the rotating disc and the fixed disc, in the actual use process, a person can control the rotating speed of the rotating disc according to different contents of smoke needing to be blown in, and when the rotating disc rotates, circulating holes in the surface of the rotating disc can be intermittently aligned with circulating holes in the surface of the fixed disc; when the circulating holes are aligned with each other, the flue gas can smoothly flow out, so that the alignment times of the circulating holes can be adjusted by controlling the speed of the rotating disc, the discharge amount of the flue gas is effectively controlled, and the situation that a large amount of flue gas flows into the electric dust removal box at the same time to increase the working pressure in the electric dust removal box is avoided; the device has the advantage of intermittent air supply and dust removal.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic dust removal, in particular to an arc dust removal device for a tunnel kiln flue. Background Art

[0002] The publication number in the existing public technology is: CN218590815U. An electrostatic precipitator can effectively reduce the temperature of the treated flue gas, avoid excessive flow rate, reduce the impact on the treatment effect, and make the dust content of the exhaust gas meet the standard; it includes a dust collection box, a fixed frame, multiple groups of discharge electrodes, multiple groups of dust collecting electrodes, a vibration mechanism, a wind shield, a dust collecting mechanism, a flow stabilizing mechanism and a cooling mechanism. The dust collection box is provided with a support frame, and air inlet and air outlet are respectively provided on both sides of the dust collection box. The fixed frame is arranged inside the dust collection box, the multiple groups of discharge electrodes and the multiple groups of dust collecting electrodes are both arranged on the fixed frame, the vibration mechanism is arranged on the top of the dust collection box, the wind shield is arranged in the dust collection box near the air inlet, the dust collecting mechanism is arranged at the bottom of the dust collection box, the flow stabilizing mechanism is connected with the air inlet through a connecting pipe, and an output pump is arranged on the connecting pipe, and the cooling mechanism is arranged in the flow stabilizing mechanism.

[0003] However, the above patent still has certain disadvantages when used: it cools the flue gas through spiral cooling tubes, the overall cooling structure is relatively simple, the cooling effect is not very ideal, and the flue gas has a short retention time during the circulation process and cannot be fully processed, and a large amount of high-temperature flue gas directly flows in, which is easy to increase the operating pressure in the electrostatic precipitator area.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides an arc dust removal device for a tunnel kiln flue, which has the advantages of intermittent air supply and dust removal, good flue gas cooling effect, and low flue gas treatment pressure, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the advantages of intermittent air supply and dust removal, good flue gas cooling effect, and low flue gas treatment pressure, the specific technical solutions adopted by the utility model are as follows:

[0009] An arc dust removal device for a tunnel kiln flue comprises a pretreatment box and an electrostatic precipitator box, an air duct is connected between the pretreatment box and the electrostatic precipitator box, a fixed disk is fixedly installed inside the air duct, one end of the fixed disk is rotatably connected to a rotating disk, and a plurality of groups of teeth are arranged around the surface of the rotating disk, one end of the teeth penetrates the air duct and meshes with a driving gear, one end of the driving gear is connected to a motor, a plurality of groups of flow holes are arranged around the surface of the rotating disk and the fixed disk, a plurality of groups of atomizing nozzles are fixedly installed at one side of the top end of the pretreatment box, a water mist hanging net is fixedly installed between the two atomizing nozzles, one end of the atomizing nozzle is located at the other side of the pretreatment box and a plurality of groups of first filter screens are obliquely installed, a serpentine cooling pipe is installed in the middle of the first filter screen, and a plurality of groups of baffles are staggeredly installed at both ends of the pretreatment box.

[0010] Furthermore, a fixed frame is fixedly installed at the top position inside the electrostatic precipitator box, a discharge electrode and a dust collecting electrode are respectively installed at the bottom position of the fixed frame, a rapping rod is installed above the fixed frame and located inside the electrostatic precipitator box, a connecting rod is connected to the top position of the rapping rod, a telescopic rod is installed at the top position of the connecting rod, one end of the telescopic rod passes through one side of the electrostatic precipitator box and is connected to the cylinder.

[0011] Furthermore, a dust collecting hopper is installed at the bottom end of the electrostatic precipitator box, and a collection box is installed at the bottom end of the electrostatic precipitator box and the pretreatment box.

[0012] Furthermore, an air inlet pipe is installed at one end of the pretreatment box.

[0013] Furthermore, an air outlet pipe is installed at one end of the electrostatic precipitator box.

[0014] Furthermore, a cooling water tank is installed at one side of the top of the pretreatment box, one end of the cooling water tank is connected to a water pump, and one end of the water pump is connected to the atomizing nozzle through a pipeline.

[0015] Furthermore, a refrigerator is installed at the other side of the top of the pretreatment box, and one end of the refrigerator is connected to the serpentine cooling pipe through a pipeline.

[0016] Furthermore, a second filter is provided at the contact position between the air duct and the pretreatment box.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides an arc dust removal device for a tunnel kiln flue, which has the following beneficial effects:

[0019] (1) The utility model adopts a rotating disk and a fixed disk. In actual use, personnel can control the rotation speed of the rotating disk according to the different smoke contents to be blown in. When the rotating disk rotates, the flow holes on its surface will be intermittently aligned with the flow holes on the surface of the fixed disk. When the two are aligned, the smoke can flow out smoothly. Therefore, by controlling the speed of the rotating disk, the number of alignments of the flow holes can be adjusted, thereby effectively controlling the exhaust volume of the smoke, avoiding a large amount of smoke from rushing in at the same time to increase the operating pressure inside the electrostatic precipitator box, and having the advantage of intermittent air supply and dust removal.

[0020] (2) The utility model adopts an air duct, a water mist net, a first filter net, a second filter net, and a serpentine cooling pipe. In actual use, after the flue gas enters the interior of the device, it will first be cooled down and the dust therein will be adsorbed by the atomized water sprayed from the atomizing nozzle, and the falling atomized water will flow onto the water mist net. The water mist net can accelerate the process of forming the water mist net inside. Then the flue gas will continue to move to the first filter net, at which time the second filtering operation can be achieved. The flue gas will also be cooled down by the cooling medium in the internal serpentine cooling pipe to weaken the temperature of the flue gas. Then the flue gas will pass through the second filter net to achieve the third filtering operation. Through multiple sets of filtering and cooling operations, the dust content in the flue gas can be reduced, thereby reducing the subsequent electrostatic precipitator operation pressure. The rotation of the rotating disk inside the air duct can also control the amount of flue gas introduced, further reducing the subsequent operation pressure. It has the advantages of good flue gas cooling effect and low flue gas treatment pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an arc dust removal device for a tunnel kiln flue proposed by the utility model;

[0023] Figure 2 It is a structural schematic diagram of the rotating disk of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the first filter screen of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the baffle of the utility model.

[0026] In the figure:

[0027] 1. Pretreatment box; 2. Air inlet pipe; 3. Water mist hanging net; 4. Atomizing nozzle; 5. Cooling water tank; 6. Water pump; 7. Baffle; 8. First filter; 9. Refrigerator; 10. Serpentine cooling pipe; 11. Second filter; 12. Flow hole; 13. Driving gear; 14. Motor; 15. Cylinder; 16. Telescopic rod; 17. Vibrating rod; 18. Fixed frame; 19. Connecting rod; 20. Discharge electrode; 21. Dust collecting electrode; 22. Air outlet pipe; 23. Ash collecting hopper; 24. Collection box; 25. Electrostatic precipitator box; 26. Air guide pipe; 27. Rotating disk; 28. Fixed disk. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, an arc dust removal device for a tunnel kiln flue is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to the embodiment of the utility model, the arc dust removal device for the tunnel kiln flue comprises a pretreatment box 1 and an electrostatic precipitator box 25, an air duct 26 is connected between the pretreatment box 1 and the electrostatic precipitator box 25, a fixed disk 28 is fixedly installed inside the air duct 26, one end of the fixed disk 28 is rotatably connected to a rotating disk 27, and a plurality of groups of teeth are arranged around the surface of the rotating disk 27, one end of the teeth penetrates the air duct 26 and meshes with a driving gear 13, one end of the driving gear 13 is connected to a motor 14, a plurality of groups of flow holes 12 are arranged around the surface of the rotating disk 27 and the fixed disk 28, a plurality of groups of atomizing nozzles 4 are fixedly installed at one side of the top end of the pretreatment box 1, a water mist hanging net 3 is fixedly installed between the two atomizing nozzles 4, one end of the atomizing nozzles 4 is located at the other side of the pretreatment box 1 and a plurality of groups of first filter screens 8 are obliquely installed, a serpentine cooling pipe 10 is installed in the middle of the first filter screen 8, and a plurality of groups of baffles 7 are staggeredly installed at both ends of the pretreatment box 1.

[0031] In one embodiment, a fixed frame 18 is fixedly installed at the top position inside the electrostatic precipitator box 25, and a discharge electrode 20 and a dust collecting electrode 21 are respectively installed at the bottom position of the fixed frame 18. A rapping rod 17 is installed above the fixed frame 18 and located inside the electrostatic precipitator box 25. A connecting rod 19 is connected to the top position of the rapping rod 17, and a telescopic rod 16 is installed at the top position of the connecting rod 19. One end of the telescopic rod 16 passes through one side of the electrostatic precipitator box 25 and is connected to the cylinder 15. The discharge electrode 20 and the dust collecting electrode 21 are common electrostatic precipitator structures and will not be elaborated here.

[0032] In one embodiment, a dust collecting hopper 23 is installed at the bottom of the electrostatic precipitator box 25, and a collecting box 24 is installed at the bottom of the electrostatic precipitator box 25 and the pretreatment box 1. The collecting box 24 can collect dust and cooling water for subsequent processing.

[0033] In one embodiment, an air inlet pipe 2 is installed at one end of the pretreatment box 1 .

[0034] In one embodiment, an air outlet pipe 22 is installed at one end of the electric dust collector box 25 .

[0035] In one embodiment, a cooling water tank 5 is installed on one side of the top of the pretreatment box 1, one end of the cooling water tank 5 is connected to a water pump 6, and one end of the water pump 6 is connected to the atomizing nozzle 4 through a pipeline. The cooling water tank 5 can store water used for cooling.

[0036] In one embodiment, a refrigerator 9 is installed on the other side of the top of the pretreatment box 1. One end of the refrigerator 9 is connected to the serpentine cooling tube 10 through a pipe. The refrigerator 9 can be an industrial cooling fan or an air cooler 9 or any device that can achieve a cooling effect, so as to achieve a cooling operation on the serpentine cooling tube 10, and then cool the internal flue gas.

[0037] In one embodiment, a second filter 11 is provided at the contact position between the air duct 26 and the pretreatment box 1. The aperture of the second filter 11 is smaller than the aperture of the first filter 8. This can better filter the dust in the flue gas, realize pretreatment operation, and reduce the subsequent electrostatic precipitator operation pressure.

[0038] Working principle: In actual use, by connecting the air inlet pipe 2 with the air outlet of the flue in the tunnel kiln, the high-temperature flue gas inside the flue will be introduced into the pretreatment box 1 through the air inlet pipe 2. At this time, the atomizing nozzle 4 inside the pretreatment box 1 can spray atomized water to perform a preliminary cooling operation on the high-temperature flue gas and adsorb and precipitate the larger particles of impurities therein, thereby achieving a certain degree of dust removal for the flue gas, and the sprayed atomized water can fall on the water mist hanging net 3, accelerating the process of forming a water mist curtain inside, and then better treating the flue gas through the water mist net, and then the flue gas is blocked by multiple groups of baffles 7, which can The retention time of the flue gas is prolonged, thereby improving the overall filtering and cooling effect. At the same time, the flue gas can be filtered for the second time through the multiple groups of inclined first filter screens 8 at the rear to further remove the particulate impurities therein, and the serpentine cooling pipe 10 located inside the first filter screen 8 can introduce the cooling medium generated by the refrigerator 9, such as cooling water or cold air, into the interior, and these cooling media can contact the flue gas to thereby improve the cooling effect on the flue gas. The cooling medium can also condense the entrained water vapor, so that this part of the water can fall into the collection box 24 located below for collection, which is convenient for subsequent processing. Then the smoke will be filtered for the third time through the filter element to remove the finer particles, and then the smoke will pass through the air duct 26. At this time, the personnel can control the running speed of the motor 14 according to the required gas flow speed, so that the driving gear 13 drives the internal rotating disk 27 to rotate at a certain speed. At this time, the flow holes 12 on its surface will intermittently contact the flow holes 12 on the surface of the fixed disk 28. When the flow holes 12 are aligned, the gas can flow smoothly. Therefore, the different alignment efficiency of the flow holes 12 can effectively control the content of the introduced gas, avoid a large amount of gas from being blown in at the same time, and increase the rear The continuous electrostatic precipitator operation pressure reduces the treatment effect, and then the blown-in flue gas will be processed by the discharge electrode 20 and the dust collecting electrode 21 to realize the electrostatic precipitator operation. Then, after the device has been running for a period of time, the operation of the cylinder 15 can drive the telescopic rod 16 to move, so that the vibration rod 17 hits the fixed frame 18 to remove the dust on the surface. At this time, the removed dust can fall into the collection box 24 through the ash hopper 23 for collection, which is convenient for subsequent treatment, and the treated flue gas will be discharged through the outlet pipe 22. The device as a whole has the advantages of intermittent air supply and dust removal, good flue gas cooling effect and low flue gas treatment pressure.

[0039] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present utility model according to the specific circumstances. The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An arc dust removal device for a tunnel kiln flue, comprising a pretreatment box (1) and an electric dust removal box (25), characterized in that: An air duct (26) is connected between the pretreatment box (1) and the electric dust removal box (25), a fixed disk (28) is fixedly installed inside the air duct (26), one end of the fixed disk (28) is rotatably connected to a rotating disk (27), and a plurality of groups of teeth are arranged around the surface of the rotating disk (27), one end of the teeth passes through the air duct (26) and meshes with a driving gear (13), one end of the driving gear (13) is connected to a motor (14), and the surfaces of the rotating disk (27) and the fixed disk (28) are A plurality of groups of flow holes (12) are arranged around the pretreatment box (1), a plurality of groups of atomizing nozzles (4) are fixedly installed at one side of the top end of the pretreatment box (1), a water mist hanging net (3) is fixedly installed between two of the atomizing nozzles (4), one end of the atomizing nozzles (4) is located inside the pretreatment box (1) and a plurality of groups of first filter screens (8) are obliquely installed at the other side, a serpentine cooling pipe (10) is installed in the middle of the first filter screen (8), and a plurality of groups of baffles (7) are staggeredly installed at both ends of the pretreatment box (1).

2. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: A fixed frame (18) is fixedly installed at the top position inside the electrostatic precipitator box (25), and a discharge electrode (20) and a dust collecting electrode (21) are respectively installed at the bottom position of the fixed frame (18). A rapping rod (17) is installed above the fixed frame (18) and located inside the electrostatic precipitator box (25). A connecting rod (19) is connected to the top position of the rapping rod (17), and a telescopic rod (16) is installed at the top position of the connecting rod (19). One end of the telescopic rod (16) passes through one side of the electrostatic precipitator box (25) and is connected to the cylinder (15).

3. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: A dust collecting hopper (23) is installed at the bottom end of the electrostatic precipitator box (25), and a collecting box (24) is installed at the bottom end of both the electrostatic precipitator box (25) and the pretreatment box (1).

4. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: An air inlet pipe (2) is installed at one end of the pretreatment box (1).

5. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: An air outlet pipe (22) is installed at one end of the electric dust removal box (25).

6. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: A cooling water tank (5) is installed at one side of the top of the pretreatment box (1), one end of the cooling water tank (5) is connected to a water pump (6), and one end of the water pump (6) is connected to the atomizing nozzle (4) through a pipeline.

7. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: A refrigerator (9) is installed at the other side of the top of the pretreatment box (1), and one end of the refrigerator (9) is connected to a serpentine cooling pipe (10) through a pipeline.

8. The arc dust removal device for tunnel kiln flue according to claim 1, characterized in that: A second filter screen (11) is provided at the contact position between the air guide pipe (26) and the pretreatment box (1).

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