Thermal power plant hearth decoking device

Abstract

The utility model discloses a thermal power plant hearth decoking device which comprises a supporting seat, a fixing mechanism, a supporting disc, an electric telescopic rod, a driving column, a driving seat, a decoking block, a positioning column, a blade, a driving mechanism and a cleaning mechanism, the fixing mechanism is arranged on the supporting seat and used for fixing the supporting seat in a hearth, the supporting disc is arranged on one side of the supporting seat, and the electric telescopic rod is arranged on the supporting disc. A plurality of electric telescopic rods are fixedly arranged between the supporting disc and the supporting seat, the driving column is rotationally arranged on the supporting disc, the driving seat is fixedly arranged on the driving column, two positioning openings are formed in the driving seat, and the decoking block is arranged on one side of the driving seat; according to the hearth decoking device for the thermal power plant, the position of the blade can be conveniently adjusted while the blade moves around the driving column, so that the inner wall of the hearth can be conveniently and comprehensively decoked, meanwhile, the decoking efficiency is improved, and the problem of low hearth decoking efficiency in the prior art proposed in the background technology is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace decoking, in particular to a furnace decoking device for a thermal power plant. Background Art

[0002] Coking in the furnace of a thermal power plant is a common problem during operation. Due to the high heat and combustion temperature of the combustion boiler, serious coking is easily caused in the furnace under the influence of factors such as long-term combustion of non-designed coal blocks or quality-changed coal blocks. Large coke often hangs on the furnace wall. The coke is large and hard, and cannot be crushed and decoked by a hydraulic crusher. Usually, manual decoking is required using tools such as fall chains and spikes.

[0003] At present, in the prior art, when decoking the furnace wall of a thermal power plant furnace, in addition to manual decoking with tools, common methods such as air cannon coking and decoking agent high-pressure gun spraying coke melting are used to crush and decoke the coke blocks through the furnace wall decoking opening. However, it is difficult to break the large pieces of hard coke on the side wall of the furnace at the same time. Not only is the efficiency low, but the decoking process using air cannons or high-pressure spray guns mainly decokes single-point coke bodies and cannot achieve all-round decoking. After decoking, there are still many residual coke blocks on the inner wall of the furnace, and manual decoking tools need to be replaced multiple times for decoking. Not only is the decoking effect poor, but the decoking efficiency is also low. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a furnace decoking device for a thermal power plant to solve the problem of low furnace decoking efficiency in the prior art mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a decoking device for a furnace of a thermal power plant, comprising a support seat, a fixing mechanism, a support plate, an electric telescopic rod, a driving column, a driving seat, a decoking block, a positioning column, a blade, a driving mechanism and a cleaning mechanism;

[0008] The fixing mechanism is arranged on the supporting seat and is used to fix the supporting seat in the furnace;

[0009] The support plate is arranged on one side of the support seat;

[0010] A plurality of the electric telescopic rods are fixedly arranged between the support plate and the support seat;

[0011] The driving column is rotatably disposed on the supporting plate;

[0012] The driving seat is fixedly arranged on the driving column, and two positioning openings are provided on the driving seat;

[0013] The decoking block is arranged on one side of the driving seat;

[0014] The positioning column is fixedly arranged on the decoking block, and the positioning column passes through the positioning opening and is slidably connected to the side wall of the positioning opening;

[0015] The blade is fixedly arranged on the decoking block;

[0016] The driving mechanism is arranged on the driving seat and is used to control the blade to move around the driving seat;

[0017] The cleaning mechanism is arranged on the decoking block and is used for cleaning impurities attached to the blade.

[0018] Furthermore, the fixing mechanism comprises:

[0019] A first cavity, wherein the first cavity is disposed in the support seat;

[0020] A fixing opening, wherein a plurality of the fixing openings are provided on the side wall of the first cavity;

[0021] A fixing block, wherein the fixing block is configured in an L shape and is slidably disposed in the fixing opening;

[0022] A fixed disk, the fixed disk is rotatably disposed in the first cavity, a plurality of rotating shafts are rotatably disposed at an eccentric position of the fixed disk, and the rotating shafts correspond to the fixed blocks one by one;

[0023] A fixing rod, the fixing rod being hingedly arranged between the rotating shaft and the fixing block;

[0024] A first motor, wherein the first motor is fixedly disposed on the support seat, and an output end of the first motor is fixedly connected to the fixed disk.

[0025] Furthermore, the driving mechanism comprises:

[0026] a first annular rack fixedly disposed on the driving column;

[0027] A first gear, the first gear is rotatably disposed on the supporting plate, and the first gear is meshed with the first annular rack;

[0028] A second motor, wherein the second motor is fixedly disposed on the supporting plate, and an output end of the second motor is fixedly connected to the first gear;

[0029] A position adjustment mechanism is provided between the driving seat and the decoking block and is used for adjusting the position of the decoking block.

[0030] As a further solution of this scheme, the position adjustment mechanism includes:

[0031] An adjusting port, the adjusting port being disposed in the driving seat, and a threaded tube being rotatably arranged in the adjusting port;

[0032] A driving groove, the driving groove is arranged on the side wall of the regulating port;

[0033] A second annular rack, the second annular rack being fixedly disposed on the outer wall of the threaded tube;

[0034] a second gear, the second gear being rotatably disposed in the driving groove, the second gear being meshed with the second annular rack;

[0035] A third motor, wherein the third motor is fixedly disposed on the driving seat, and an output end of the third motor is fixedly connected to the second gear;

[0036] A threaded rod is fixedly arranged on the decoking block, and the threaded rod penetrates the threaded tube through threaded cooperation.

[0037] As a further embodiment of this scheme, the cleaning mechanism includes:

[0038] A cleaning tank, the cleaning tank being disposed on the decoking block;

[0039] A cleaning roller, the cleaning roller is rotatably disposed in the cleaning groove, the side wall of the cleaning roller is evenly distributed with cleaning bristles, and the cleaning bristles are in contact with the blade;

[0040] A rotating mechanism is arranged in the driving seat and the decoking block, and is used to control the cleaning roller to rotate.

[0041] On the basis of the above scheme, the rotating mechanism comprises:

[0042] A second cavity, wherein the second cavity is disposed on the driving seat, and a conducting port is provided through a side wall of the second cavity;

[0043] A first bevel gear, wherein the first bevel gear is rotatably disposed on an inner top wall of the second cavity, and a support rod is fixedly disposed between the first bevel gear and the support plate;

[0044] a second bevel gear, the second bevel gear being rotatably disposed on a side wall of the second cavity close to the decoking block, the second bevel gear being meshed with the first bevel gear;

[0045] A third cavity, wherein the decoking block is provided with the third cavity, and a third bevel gear and a fourth bevel gear are rotatably provided on adjacent inner walls of the third cavity;

[0046] Wherein, the third bevel gear is meshed with the fourth bevel gear;

[0047] A connecting rod, the connecting rod is fixedly arranged between the third bevel gear and the cleaning roller;

[0048] A conduction rod, wherein the conduction rod is rotatably disposed on the side wall of the decoking block, the conduction rod is fixedly connected to the fourth bevel gear, and the conduction rod passes through the conduction port and is slidably connected to the second bevel gear.

[0049] (III) Beneficial effects

[0050] Compared with the prior art, the utility model provides a furnace decoking device for a thermal power plant, which has the following features:

[0051] Beneficial effects:

[0052] 1. In the utility model, through the setting of the fixing mechanism, after the support seat is placed in the decoking port of the furnace, the first motor can be used to drive the fixing plate to rotate, and then the fixing block can be driven to move through the fixing rod and the rotating shaft, so that the fixing block is placed on the decoking port, and the support seat is fixed by clamping the fixing block against the side wall of the decoking port;

[0053] 2. In the utility model, through the setting of the driving mechanism, the operation of the third motor can drive the second gear to rotate, and the meshing of the second gear and the second annular rack can drive the threaded tube to rotate, and the threaded cooperation of the threaded tube and the threaded rod can drive the decoking block and the blade to adjust the position, and the operation of the second motor can drive the blade to move around the driving column through the meshing of the first gear and the first annular rack, so as to facilitate driving the blade to scrape the coke blocks at different positions;

[0054] 3. In the utility model, during the rotation of the driving column, the meshing of the second bevel gear and the first bevel gear can drive the transmission rod and the fourth bevel gear to rotate, and then the meshing of the third bevel gear and the fourth bevel gear can drive the third bevel gear and the cleaning roller to rotate, so that the impurities attached to the blade can be cleaned by the cleaning bristles;

[0055] 4. In the utility model, through the support seat, fixing mechanism, support plate, electric telescopic rod, drive column, drive seat, decoking block, positioning column, blade, drive mechanism and cleaning mechanism, the position of the blade can be adjusted while the blade moves around the drive column, thereby facilitating comprehensive decoking of the inner wall of the furnace and improving the decoking efficiency, thereby solving the problem of low decoking efficiency of the furnace in the prior art mentioned in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1It is a schematic diagram of a three-dimensional structure decomposed in a preferred embodiment of the present application;

[0057] Figure 2 This is a schematic diagram of the cross-sectional structure of this application;

[0058] Figure 3 This is a cross-sectional structural diagram of the driving mechanism of this application;

[0059] Figure 4 This is a schematic diagram of the cross-sectional structure of the cleaning mechanism of this application.

[0060] In the figure: 1. support seat; 2. support plate; 3. electric telescopic rod; 4. driving column; 5. driving seat; 6. decoking block; 7. positioning column; 8. blade; 9. first cavity; 10. fixing block; 11. fixing plate; 12. fixing rod; 13. first motor; 14. first annular rack; 15. first gear; 16. second motor; 17. threaded pipe; 18. second annular rack; 19. second gear; 20. third motor; 21. threaded rod; 22. cleaning roller; 23. first bevel gear; 24. second bevel gear; 25. third bevel gear; 26. fourth bevel gear; 27. conduction rod. DETAILED DESCRIPTION

[0061] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0062] See also Figures 1 to 4 A decoking device for a furnace of a thermal power plant comprises a support seat 1, a fixing mechanism, a support plate 2, an electric telescopic rod 3, a driving column 4, a driving seat 5, a decoking block 6, a positioning column 7, a blade 8, a driving mechanism and a cleaning mechanism. The fixing mechanism is arranged on the support seat 1, and is used to fix the support seat 1 in the furnace. The support plate 2 is arranged on one side of the support seat 1. A plurality of electric telescopic rods 3 are fixedly arranged between the support plate 2 and the support seat 1. The driving column 4 is rotatably arranged on the support plate 2. The driving seat 5 is fixedly arranged on the driving column 4. Two positioning openings are provided on the driving seat 5. The decoking block 6 is arranged on one side of the driving seat 5. The positioning column 7 is fixedly arranged on the decoking block 6. The positioning column 7 passes through the positioning opening and is slidably connected to the side wall of the positioning opening. The blade 8 is fixedly arranged on the decoking block 6. The driving mechanism is arranged on the driving seat 5, and is used to control the blade 8 to move around the driving seat 5. The cleaning mechanism is arranged on the decoking block 6, and is used to clean impurities attached to the blade 8.

[0063] Among them, the fixing mechanism includes a first cavity 9, a fixing port, a fixing block 10, a fixing disk 11, a fixing rod 12 and a first motor 13. The first cavity 9 is opened in the support seat 1. The side wall of the first cavity 9 is provided with multiple fixing ports. The fixing block 10 is set in an L shape. The fixing block 10 is slidably set in the fixing port. The fixing disk 11 is rotatably set in the first cavity 9. The fixing disk 11 is rotatably set with multiple rotating shafts at an eccentric position. The rotating shafts correspond one-to-one to the fixing block 10. The fixing rod 12 is hingedly set between the rotating shaft and the fixing block 10. The first motor 13 is fixedly set on the support seat 1, and the output end of the first motor 13 is fixedly connected to the fixing disk 11.

[0064] Specifically, after the operator places the support seat 1 in the decoking port of the furnace, the first motor 13 can be used to drive the fixed plate 11 to rotate, and then the fixed block 10 can be driven to move through the fixed rod 12 and the rotating shaft, so that the fixed block 10 is placed on the decoking port, and the support seat 1 is fixed by clamping the fixed block 10 against the side wall of the decoking port.

[0065] The driving mechanism includes a first annular rack 14, a first gear 15, a second motor 16 and a position adjustment mechanism. The first annular rack 14 is fixedly arranged on the driving column 4, the first gear 15 is rotatably arranged on the supporting disk 2, the first gear 15 is meshed with the first annular rack 14, the second motor 16 is fixedly arranged on the supporting disk 2, and the output end of the second motor 16 is fixedly connected to the first gear 15. The position adjustment mechanism is arranged between the driving seat 5 and the decoking block 6, and is used to adjust the position of the decoking block 6. The position adjustment mechanism includes an adjustment port, a driving groove, a second annular rack 14, a first gear 15, a second motor 16, and a position adjustment mechanism. 8. The second gear 19, the third motor 20 and the threaded rod 21, the adjusting port is opened in the driving seat 5, the threaded tube 17 is rotatably set in the adjusting port, the driving groove is opened on the side wall of the adjusting port, the second annular rack 18 is fixedly set on the outer wall of the threaded tube 17, the second gear 19 is rotatably set in the driving groove, the second gear 19 is meshed with the second annular rack 18, the third motor 20 is fixedly set on the driving seat 5, the output end of the third motor 20 is fixedly connected to the second gear 19, the threaded rod 21 is fixedly set on the decoking block 6, and the threaded rod 21 passes through the threaded tube 17 through threaded cooperation.

[0066] Specifically, the operator controls the operation of the third motor 20, and the operation of the third motor 20 can drive the second gear 19 to rotate, and at the same time, the threaded tube 17 is driven to rotate through the meshing of the second gear 19 and the second annular rack 18, and at the same time, the position of the decoking block 6 and the blade 8 is adjusted through the threaded cooperation of the threaded tube 17 and the threaded rod 21, and at the same time, the operation of the second motor 16 can drive the first gear 15 to rotate, and at the same time, the engagement of the first gear 15 with the first annular rack 14 drives the drive column 4 and the drive seat 5 to rotate, and then drives the blade 8 to move around the drive column 4 through the positioning column 7, so as to facilitate driving the blade 8 to scrape the coke blocks at different positions.

[0067] Among them, the cleaning mechanism includes a cleaning groove, a cleaning roller 22 and a rotating mechanism. The cleaning groove is opened on the decoking block 6. The cleaning roller 22 is rotatably set in the cleaning groove. Cleaning bristles are evenly distributed on the side walls of the cleaning roller 22. The cleaning bristles are in contact with the blade 8. The rotating mechanism is set in the driving seat 5 and the decoking block 6, and is used to control the cleaning roller 22 to rotate. The rotating mechanism includes a second cavity, a first bevel gear 23, a second bevel gear 24, a third cavity, a connecting rod and a conduction rod 27. The second cavity is opened on the driving seat 5, and a conduction port is penetrated through the side wall of the second cavity. The first bevel gear 23 is rotatably set on the inner top wall of the second cavity. The first bevel gear 23 and A support rod is fixedly arranged between the support plates 2, and the second bevel gear 24 is rotatably arranged on the side wall of the second cavity close to the decoking block 6. The second bevel gear 24 is meshed with the first bevel gear 23. A third cavity is opened in the decoking block 6, and a third bevel gear 25 and a fourth bevel gear 26 are rotatably arranged on the inner wall adjacent to the third cavity, wherein the third bevel gear 25 is meshed with the fourth bevel gear 26, and a connecting rod is fixedly arranged between the third bevel gear 25 and the cleaning roller 22. A conduction rod 27 is rotatably arranged on the side wall of the decoking block 6, and the conduction rod 27 is fixedly connected to the fourth bevel gear 26. The conduction rod 27 passes through the conduction port and is slidably connected to the second bevel gear 24.

[0068] Specifically, during the rotation of the driving column 4, the engagement of the second bevel gear 24 with the first bevel gear 23 can drive the transmission rod 27 and the fourth bevel gear 26 to rotate, and then the engagement of the third bevel gear 25 with the fourth bevel gear 26 can drive the third bevel gear 25 and the cleaning roller 22 to rotate, thereby facilitating the cleaning of impurities attached to the blade 8 by the cleaning bristles.

[0069] In summary, when the furnace decoking device of the thermal power plant is in use, after the operator places the support seat 1 in the decoking port of the furnace, the operation of the first motor 13 can drive the fixed plate 11 to rotate, and then the fixed block 10 can be driven to move through the fixed rod 12 and the rotating shaft, so that the fixed block 10 is placed on the decoking port, and the support seat 1 is fixed by clamping the fixed block 10 against the side wall of the decoking port. Then the operator controls the operation of the third motor 20, and the operation of the third motor 20 can drive the second gear 19 to rotate, and at the same time, the meshing of the second gear 19 and the second annular rack 18 can drive the threaded tube 17 to rotate, and at the same time, the threaded cooperation of the threaded tube 17 and the threaded rod 21 can drive the decoking block 6 and the blade 8 to adjust their positions, and at the same time, the operation of the second motor 16 It can drive the first gear 15 to rotate, and at the same time, the engagement of the first gear 15 with the first annular rack 14 can drive the driving column 4 and the driving seat 5 to rotate, and then the positioning column 7 can drive the blade 8 to move around the driving column 4, so as to facilitate the blade 8 to scrape the coke blocks at different positions. After that, the operator controls the electric telescopic rod 3 to work, and can clean the coke blocks at different depths. At the same time, during the rotation of the driving column 4, the engagement of the second bevel gear 24 with the first bevel gear 23 can drive the transmission rod 27 and the fourth bevel gear 26 to rotate, and then the engagement of the third bevel gear 25 with the fourth bevel gear 26 can drive the third bevel gear 25 and the cleaning roller 22 to rotate, so as to facilitate the cleaning of impurities attached to the blade 8 by the cleaning brush.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A furnace decoking device for a thermal power plant, characterized in that: include: Support seat (1); A fixing mechanism, the fixing mechanism being arranged on the support seat (1) and being used for fixing the support seat (1) in the furnace; A support plate (2), wherein the support plate (2) is arranged on one side of the support seat (1); An electric telescopic rod (3), a plurality of the electric telescopic rods (3) being fixedly arranged between the support plate (2) and the support seat (1); A driving column (4), the driving column (4) being rotatably disposed on the supporting plate (2); A driving seat (5), wherein the driving seat (5) is fixedly arranged on the driving column (4), and two positioning openings are provided on the driving seat (5); A decoking block (6), wherein the decoking block (6) is arranged on one side of the driving seat (5); A positioning column (7), wherein the positioning column (7) is fixedly arranged on the decoking block (6), and the positioning column (7) passes through the positioning opening and is slidably connected to a side wall of the positioning opening; A blade (8), wherein the blade (8) is fixedly arranged on the decoking block (6); a driving mechanism, the driving mechanism being arranged on the driving seat (5) and being used for controlling the blade (8) to move around the driving seat (5); A cleaning mechanism is arranged on the decoking block (6) and is used to clean impurities attached to the blade (8).

2. A furnace decoking device for a thermal power plant according to claim 1, characterized in that: The fixing mechanism comprises: A first cavity (9), wherein the first cavity (9) is provided in the support seat (1); A fixing opening, a plurality of the fixing openings are provided on the side wall of the first cavity (9); A fixing block (10), the fixing block (10) being arranged in an L shape, and the fixing block (10) being slidably arranged in the fixing opening; A fixed disk (11), the fixed disk (11) being rotatably disposed in the first cavity (9), a plurality of rotating shafts being rotatably disposed at an eccentric position of the fixed disk (11), the rotating shafts corresponding one to one with the fixed blocks (10); A fixing rod (12), wherein the fixing rod (12) is hingedly arranged between the rotating shaft and the fixing block (10); A first motor (13), wherein the first motor (13) is fixedly arranged on the support seat (1), and an output end of the first motor (13) is fixedly connected to the fixed disk (11).

3. A furnace decoking device for a thermal power plant according to claim 2, characterized in that: The driving mechanism comprises: A first annular rack (14), wherein the first annular rack (14) is fixedly arranged on the driving column (4); a first gear (15), the first gear (15) being rotatably disposed on the support plate (2), the first gear (15) being meshed with the first annular rack (14); a second motor (16), the second motor (16) being fixedly arranged on the support plate (2), and an output end of the second motor (16) being fixedly connected to the first gear (15); A position adjustment mechanism is provided between the driving seat (5) and the decoking block (6) and is used to adjust the position of the decoking block (6).

4. A furnace decoking device for a thermal power plant according to claim 3, characterized in that: The position adjustment mechanism comprises: An adjustment port, the adjustment port being opened in the driving seat (5), and a threaded tube (17) being rotatably arranged in the adjustment port; A driving groove, the driving groove is arranged on the side wall of the regulating port; A second annular rack (18), wherein the second annular rack (18) is fixedly arranged on the outer wall of the threaded tube (17); a second gear (19), the second gear (19) being rotatably disposed in the driving groove, the second gear (19) being meshed with the second annular rack (18); A third motor (20), the third motor (20) being fixedly disposed on the driving seat (5), and an output end of the third motor (20) being fixedly connected to the second gear (19); A threaded rod (21), wherein the threaded rod (21) is fixedly arranged on the decoking block (6), and the threaded rod (21) penetrates the threaded tube (17) through threaded engagement.

5. A furnace decoking device for a thermal power plant according to claim 4, characterized in that: The cleaning mechanism comprises: A cleaning tank, the cleaning tank being provided on the decoking block (6); A cleaning roller (22), the cleaning roller (22) being rotatably disposed in the cleaning groove, the side wall of the cleaning roller (22) being evenly distributed with cleaning bristles, the cleaning bristles being in contact with the blade (8); A rotating mechanism is arranged in the driving seat (5) and the decoking block (6) and is used to control the cleaning roller (22) to rotate.

6. A furnace decoking device for a thermal power plant according to claim 5, characterized in that: The rotating mechanism comprises: A second cavity, the second cavity is opened on the driving seat (5), and a conduction port is provided through a side wall of the second cavity; a first bevel gear (23), the first bevel gear (23) being rotatably arranged on the inner top wall of the second cavity, and a support rod being fixedly arranged between the first bevel gear (23) and the support plate (2); a second bevel gear (24), the second bevel gear (24) being rotatably disposed on a side wall of the second cavity close to the decoking block (6), the second bevel gear (24) being meshed with the first bevel gear (23); A third cavity, wherein the decoking block (6) has the third cavity formed therein, and a third bevel gear (25) and a fourth bevel gear (26) are rotatably arranged on adjacent inner walls of the third cavity; Wherein, the third bevel gear (25) is meshed with the fourth bevel gear (26); A connecting rod, the connecting rod being fixedly arranged between the third bevel gear (25) and the cleaning roller (22); A conduction rod (27), wherein the conduction rod (27) is rotatably disposed on the side wall of the decoking block (6), the conduction rod (27) is fixedly connected to the fourth bevel gear (26), and the conduction rod (27) passes through the conduction port and is slidably connected to the second bevel gear (24).

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