Pulverized coal furnace waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas purification, in particular to a waste gas treatment device for a pulverized coal furnace. The utility model provides a pulverized coal furnace waste gas treatment device with a structure convenient to maintain. A pulverized coal furnace waste gas treatment device comprises a connecting pipe, a vibration mechanism, a filtering assembly and the like, the lower side of the outer wall of the connecting pipe is connected and communicated with a discharging nozzle, the outer wall of the connecting pipe is provided with the vibration mechanism capable of vibrating a power grid, and the end of the connecting pipe is connected with the filtering assembly. Smoke dust attached to the power grid can be shaken off through the vibrating mechanism, so that a collecting box arranged under an ionization field in the connecting pipe can conveniently collect the shaken-off smoke dust; according to the smoke dust treatment device, by means of the double filtering effects of the filtering lattices arranged on the drawing type structure and the collecting bag arranged at the end of the filtering box in a sleeving mode, ionized smoke dust can be further filtered, the filtering lattices and the collecting bag can be conveniently detached and cleaned, and then the device can be conveniently maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification, in particular to a waste gas treatment device for a pulverized coal furnace. Background Art

[0002] Due to the full mixing and combustion of coal powder and air, the heat energy in the coal powder can be fully released, which improves the thermal efficiency. Generally, the combustion efficiency of the coal powder furnace can reach about 88%-93%. It is usually used in the steel industry to provide high-temperature heat energy by using coal powder combustion furnace to produce high-quality steel products.

[0003] At present, when the filter components installed in the tail gas treatment device of the existing pulverized coal furnace are replaced after being used for a period of time, it is usually necessary to dismantle the entire treatment device for maintenance, which is troublesome to operate and inconvenient to use.

[0004] To this end, a pulverized coal furnace exhaust gas treatment device with an easy-to-maintain structure is proposed to solve the above technical problems. Utility Model Content

[0005] In order to overcome the defect that the existing device still has inconvenient maintenance during use, the technical problem is to provide a pulverized coal furnace exhaust gas treatment device with an easy-to-maintain structure.

[0006] The technical solution is: a pulverized coal furnace exhaust gas treatment device, including a pulverized coal furnace exhaust pipe, a connecting pipe, a controller, a power grid, a discharge nozzle and a collecting box, the tail end of the pulverized coal furnace exhaust pipe is connected and communicated with the connecting pipe, the controller is arranged on the upper side of the outer wall of the connecting pipe, the power grid is arranged in the connecting pipe, and the power grid is electrically connected to the controller, the lower side of the outer wall of the connecting pipe is connected and communicated with the discharge nozzle, the collection box is pull-out arranged in the discharge nozzle, and also includes a filter assembly and a vibration mechanism, the outer wall of the connecting pipe is arranged with a vibration mechanism capable of vibrating the power grid, the end of the connecting pipe is connected with the filter assembly, the filter assembly includes a filter box, a filter grid, a collecting bag and a fixing part, the end of the connecting pipe is connected and communicated with the filter box, a guide groove is opened in the filter box, the filter grid is pull-out arranged in the guide groove, the end of the filter box is covered with a collecting bag, and a fixing part for reinforcing the filter grid is arranged between the filter box and the filter grid.

[0007] Furthermore, the fixing member includes a buckle belt and a connecting column. The upper and lower sides of the filter box are respectively provided with buckle belts. The shell of the filter grid is respectively provided with two connecting columns, and the buckle belt can be buckled on the connecting columns.

[0008] Furthermore, a convex ring is provided at the end of the connecting column.

[0009] Furthermore, the filter grid is an activated carbon filter.

[0010] Furthermore, the collection box is located directly below the power grid.

[0011] Furthermore, the vibration mechanism includes a motor, a cam, a guide rail, a connecting arm, a shift block and an elastic member. The motor is installed on the outer wall of the connecting tube, the cam is connected to the output shaft of the motor, the guide rail is provided on the inner wall of the connecting tube, the connecting arm is symmetrically slidably sleeved on the guide rail, the cam is located between the two connecting arms and can contact the connecting arms, an elastic member is connected between the connecting arm and the guide rail, a shift block is provided on the connecting arm, and the shift block can contact the corresponding power grid.

[0012] Furthermore, a side of the shift block close to the power grid is arranged in an arc-shaped structure.

[0013] The beneficial effects of the utility model are as follows: the smoke attached to the power grid can be shaken off by the vibration mechanism, so that the collection box arranged just below the ionization field in the connecting pipe can conveniently collect the shaken-off smoke; the double filtering effect of the filter grid and the collection bag mounted on the end of the filter box through the pull-out structure is not only conducive to further filtering of the smoke after ionization, but also the filter grid and the collection bag can be conveniently disassembled and cleaned, thereby facilitating the maintenance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 This is a partial structural separation diagram of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the vibration mechanism of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the filter assembly of the utility model.

[0019] Figure 6 This is a structural separation diagram of the filter assembly of the utility model.

[0020] Explanation of the accompanying drawings: 1_exhaust pipe of pulverized coal furnace, 2_connecting pipe, 3_controller, 30_power grid, 4_discharging nozzle, 5_collecting box, 6_filter box, 60_guide groove, 7_filter grid, 8_collecting bag, 9_buckle, 10_connecting column, 11_motor, 12_cam, 13_guide rail, 14_connecting arm, 15_dial block, 16_elastic part. DETAILED DESCRIPTION

[0021] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0022] Embodiment: The utility model provides a pulverized coal furnace exhaust gas treatment device, such as Figure 1-Figure 6 As shown, it includes a pulverized coal furnace exhaust pipe 1, a connecting pipe 2, a controller 3, a power grid 30, a discharge nozzle 4, a collecting box 5, a filtering assembly and a vibration mechanism. The tail end of the pulverized coal furnace exhaust pipe 1 is connected and communicated with the connecting pipe 2, the controller 3 is arranged on the upper side of the outer wall of the connecting pipe 2, the power grid 30 is arranged in the connecting pipe 2, and the power grid 30 is electrically connected to the controller 3, the lower side of the outer wall of the connecting pipe 2 is connected and communicated with the discharge nozzle 4, the collecting box 5 is pull-out arranged in the discharge nozzle 4, and the collecting box 5 is located directly below the power grid 30, which is conducive to collecting and processing the exhaust gas and smoke attached to the power grid 30, and the outer wall of the connecting pipe 2 is provided with a vibration mechanism, which can vibrate the power grid 30 by controlling the operation of the vibration mechanism, which is conducive to collecting the exhaust gas and smoke attached to the power grid 30. The attached smoke and dust are shaken off, and a filter assembly is connected to the end of the connecting pipe 2. The filter assembly is beneficial to further improve the filtering efficiency of the smoke and dust in the exhaust gas. The filter assembly includes a filter box 6, a filter grid 7, a collecting bag 8 and a fixing part. The end of the connecting pipe 2 is connected and communicated with the filter box 6. A guide groove 60 is opened in the filter box 6. A filter grid 7 is pull-out arranged in the guide groove 60. The filter grid 7 is an activated carbon filter mesh, which can adsorb and purify the smoke and dust, thereby helping to improve the filtering efficiency of the smoke and dust. A collecting bag 8 is installed on the end of the filter box 6. A fixing part is arranged between the filter box 6 and the filter grid 7. By using the fixing part, the stability of the installation of the filter grid 7 can be improved, and the filter grid 7 can be installed and disassembled conveniently, which is convenient to use.

[0023] Furthermore, Figure 1 , Figure 5 and Figure 6 As shown, the fixing parts include a buckle strap 9 and a connecting column 10. Buckle straps 9 are respectively provided on the upper and lower sides of the filter box 6. Two connecting columns 10 are respectively provided on the shell of the filter grid 7. The buckle strap 9 can be buckled on the connecting column 10. A convex ring is also provided at the end of the connecting column 10 to prevent the buckle strap 9 from falling off the connecting column 10, which is beneficial to improve the stability of the assembly of the filter grid 7.

[0024] In addition, if Figure 1-Figure 4As shown, the vibration mechanism includes a motor 11, a cam 12, a guide rail 13, a connecting arm 14, a shifting block 15 and an elastic member 16. The motor 11 is installed on the outer wall of the connecting tube 2, and the cam 12 is connected to the output shaft of the motor 11. The guide rail 13 is provided on the inner wall of the connecting tube 2. The connecting arm 14 is symmetrically slidably sleeved on the guide rail 13. The cam 12 is located between the two connecting arms 14 and can contact the connecting arms 14. An elastic member 16 is connected between the connecting arm 14 and the guide rail 13. The elastic member 16 is a compression spring that can open and restore the squeezed connecting arm 14 to its original position. The connecting arm 14 is provided with a shifting block 15, and the shifting block 15 can contact the corresponding power grid 30, and the side of the shifting block 15 close to the power grid 30 is arranged in an arc shape so that the side with the arc shape structure can contact the power grid 30, which is conducive to shaking off the smoke and dust attached to the power grid 30.

[0025] During use, the controller 3 controls the power grid 30 to be energized, which can maintain an electrostatic field sufficient to ionize the gas. When the exhaust gas containing smoke and dust passes through the electrostatic field, the negative ions collide with the dust and attach to it, so that the dust is charged. The charged dust is acted upon by the Coulomb force in the electric field and is driven toward the dust collecting electrode. After reaching the dust collecting electrode, the charged dust releases the charge and is deposited on the dust collecting electrode, thereby achieving separation of gas and dust. In this way, the exhaust gas discharged from the exhaust pipe 1 of the pulverized coal furnace can be ionized. By starting the motor 11, the cam 12 can be operated, and the connecting arm 14 and the shifting block 15 can be moved to swing. With the cooperation of the elastic member 16, the cam 12 can be moved to rotate. The shifting block 15 can be swung back and forth to shift the electric grid 30, so that the smoke attached to the electric grid 30 can fall into the collecting box 5. In this way, the smoke can be easily cleaned by simply pulling out the collecting box 5, which is easy to use. Through the cooperation of the filter grid 7 and the collecting bag 8, the ionized smoke can be further filtered, which is beneficial to improve the filtering efficiency of the smoke in the exhaust gas. Moreover, the filter grid 7 can be easily disassembled and replaced by simply pulling out the filter grid 7 to the outside, and the collecting bag 8 can be removed from the filter box 6 to realize convenient disposal of the residual smoke filtered therein, which is convenient for maintenance of the device.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pulverized coal furnace exhaust gas treatment device, comprising a pulverized coal furnace exhaust pipe (1), a connecting pipe (2), a controller (3), a power grid (30), a discharge nozzle (4) and a collecting box (5), wherein the tail end of the pulverized coal furnace exhaust pipe (1) is connected and communicated with the connecting pipe (2), the controller (3) is arranged on the upper side of the outer wall of the connecting pipe (2), the power grid (30) is arranged inside the connecting pipe (2), and the power grid (30) is electrically connected to the controller (3), the lower side of the outer wall of the connecting pipe (2) is connected and communicated with the discharge nozzle (4), and the collection box (5) is drawably arranged inside the discharge nozzle (4), characterized in that: The invention also comprises a filter assembly and a vibration mechanism, wherein the outer wall of the connecting pipe (2) is provided with a vibration mechanism capable of vibrating the power grid (30), the end of the connecting pipe (2) is connected with a filter assembly, the filter assembly comprises a filter box (6), a filter grid (7), a collection bag (8) and a fixing member, the end of the connecting pipe (2) is connected and communicated with the filter box (6), a guide groove (60) is provided in the filter box (6), the filter grid (7) is drawably arranged in the guide groove (60), the end of the filter box (6) is fitted with a collection bag (8), and a fixing member for reinforcing the filter grid (7) is provided between the filter box (6) and the filter grid (7).

2. A pulverized coal furnace exhaust gas treatment device according to claim 1, characterized in that: The fixing member comprises a buckle (9) and a connecting column (10); the buckle (9) is respectively arranged on the upper and lower sides of the filter box (6); two connecting columns (10) are respectively arranged on the shell of the filter grid (7); and the buckle (9) can be buckled on the connecting column (10).

3. A pulverized coal furnace exhaust gas treatment device according to claim 2, characterized in that: The end of the connecting column (10) is provided with a convex ring.

4. A pulverized coal furnace exhaust gas treatment device according to claim 1, characterized in that: The filter grid (7) is an activated carbon filter.

5. The pulverized coal furnace exhaust gas treatment device according to claim 1, characterized in that: The collection box (5) is located directly below the power grid (30).

6. A pulverized coal furnace exhaust gas treatment device according to claim 1, characterized in that: The vibration mechanism comprises a motor (11), a cam (12), a guide rail (13), a connecting arm (14), a shifting block (15) and an elastic member (16); the motor (11) is mounted on the outer wall of the connecting tube (2); the cam (12) is connected to the output shaft of the motor (11); the guide rail (13) is arranged on the inner wall of the connecting tube (2); the connecting arm (14) is symmetrically slidably sleeved on the guide rail (13); the cam (12) is located between two connecting arms (14) and can contact the connecting arms (14); an elastic member (16) is connected between the connecting arm (14) and the guide rail (13); the shifting block (15) is arranged on the connecting arm (14), and the shifting block (15) can contact the corresponding power grid (30).

7. A pulverized coal furnace exhaust gas treatment device according to claim 6, characterized in that: The side of the shifting block (15) close to the power grid (30) is arranged in an arc-shaped structure.

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