Scraper type dewatering and slag removing machine suitable for thermal power plant

Abstract

The utility model relates to the technical field of thermal power generation ash and slag removal, in particular to a scraper type dehydration slag remover suitable for a thermal power plant, which comprises a scraper slag salvaging machine, the scraper slag salvaging machine comprises a machine body shell and a slag well, the slag well is arranged above the machine body shell, a plurality of scraper bodies are arranged in the machine body shell, and the scraper bodies are arranged on the machine body shell. A cleaning assembly is fixedly arranged on the side, close to the discharging end, in the machine body shell and comprises two supporting plates, the two supporting plates are fixedly connected to the front plate body and the rear plate body of the machine body shell correspondingly, and a mounting shaft is rotationally connected between the two supporting plates. The outer walls, close to the two ends, of the mounting shaft are fixedly sleeved with swing arms. According to the utility model, the cleaning assembly is arranged, so that the problem that the service life of equipment is finally influenced if ash adhered to the surface of the scraper cannot be treated in time in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of ash and slag removal in thermal power generation, in particular to a scraper type dehydration slag remover suitable for thermal power plants. Background Art

[0002] After pulverized coal is burned in a thermal power plant, the slag passes through the slag pit and shutoff gate and falls into the slag scoop water tank. The slag, with a temperature of up to 800°C, removes a large amount of heat and causes the water in the tank to boil, increasing water loss in the slag removal system. Secondly, in traditional slag removal systems, the ash rises on a ramp via scrapers and uses gravity to drain water to reduce its moisture content. However, the ash entering the slag bin still contains a large amount of water, causing ash water to leak when transported by slag trucks, polluting the environment and increasing water consumption in the slag removal system.

[0003] To this end, when applying for this utility model, the applicant searched and found that a Chinese patent disclosed "a scraper-type dehydration and slag removal system suitable for thermal power plants, including an ash dehydration system, a scraper-type slag picker and a water supply system. The ash dehydration system includes a slag pit, a slag bin, an air inlet, a heat exchanger and a water collection plate; the scraper-type slag picker includes a slag picker ramp, and a sealing plate is installed on the top of the slag picker ramp, so that the slag picker ramp becomes part of the slag picker ramp air circuit; the water supply system includes a water collection plate." Its application number is "CN202011315160.7". This patent mainly utilizes the waste heat of the high-temperature ash at the outlet of the slag pit to heat the compressed air, and then sends the heated compressed air into the slag bin to reduce the moisture content of the ash. In addition, the hot and humid air is used to condense and recover part of the water when it encounters cold, thereby ultimately achieving the purpose of reducing the water consumption of the slag removal system, reducing the moisture content of the discharged ash, and reducing the pollution to the environment caused by ash water leakage from the slag truck.

[0004] Although the above patent achieves the effect of reducing the water consumption of the slag removal system, the applicant found that during the ash transportation process of the existing device, some ash will adhere to the scraper surface. If it is not handled in time, it will enter the pump through the flushing water flow, affecting the service life of the equipment. Utility Model Content

[0005] The purpose of the utility model is to solve the disadvantage of the prior art that the ash adhering to the scraper surface will eventually affect the service life of the equipment if it cannot be handled in time, and to propose a scraper type dehydrating slag remover suitable for thermal power plants.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a scraper type dehydration slag remover suitable for thermal power plants, comprising a scraper slag remover, the scraper slag remover comprising a machine body shell and a slag well, the slag well being arranged above the machine body shell, a plurality of scraper bodies being arranged in the machine body shell, and a cleaning assembly being fixedly arranged in the machine body shell on one side near the discharge end;

[0007] The cleaning assembly includes a support plate, and there are two support plates in total. The two support plates are respectively fixedly connected to the front and rear plates of the body shell, and a mounting shaft is rotatably connected between the two support plates. The mounting shaft is fixedly sleeved with swing arms on the outer walls near both ends, and the lower ends of the two swing arms are slidably sleeved with mounting plates. A cleaning roller is rotatably connected between the two mounting plates near the lower end.

[0008] As a further description of the above technical solution:

[0009] An adjusting motor is fixedly connected to the outer wall of one of the mounting plates, the output end of the adjusting motor passes through the mounting plate and is fixedly sleeved with gear 1, the front end of the rotating shaft fixedly sleeved in the cleaning roller passes through the mounting plate and is fixedly sleeved with gear 2, and gear 1 and gear 2 are engaged with each other.

[0010] As a further description of the above technical solution:

[0011] A protective plate is fixedly connected to the outer wall of one of the mounting plates, and the bottom plate and the vertical plate of the protective plate are respectively arranged at the lower end of the regulating motor and a position close to one side of the scraper body.

[0012] As a further description of the above technical solution:

[0013] Both of the swing arms are provided with a positioning assembly, and the positioning assembly includes a positioning pin. There are two positioning pins in total. Both of the mounting plates are provided with mounting holes. The two positioning pins are respectively movably connected to the two swing arms, and the two positioning pins are respectively provided through the two mounting holes.

[0014] As a further description of the above technical solution:

[0015] A connecting cap is fixedly sleeved on the outer wall of the opposite end of the two positioning pins, and a spring is fixedly connected between the two connecting caps and the two swing arms. The two springs are movably sleeved on the outer ends of the two positioning pins.

[0016] As a further description of the above technical solution:

[0017] A plurality of sprockets are rotatably connected in the body shell, and chains are sleeved on the outer walls of the plurality of sprockets at the front and rear ends, and the plurality of sprockets and the sleeved chains are meshed, and the front and rear ends of the plurality of scraper bodies are fixedly connected to the two chains at the front and rear ends.

[0018] As a further description of the above technical solution:

[0019] A dual-axis motor is fixedly connected above the discharge end of the body shell, wherein the front and rear sprockets located at the discharge end of the body shell are fixedly sleeved with drive shafts, and a synchronization mechanism is sleeved between the front and rear output ends of the dual-axis motor and the two drive shafts.

[0020] As a further description of the above technical solution:

[0021] The synchronization mechanism includes a synchronization wheel and a synchronization belt sleeved on the outer wall of the synchronization wheel, and the synchronization belt is meshed with the two sleeved synchronization wheels.

[0022] The utility model has the following beneficial effects:

[0023] 1. Compared with the existing technology, this scraper-type dehydration and slag removal machine suitable for thermal power plants sets a cleaning component and utilizes the weight of the cleaning roller to enable the scraper to press the cleaning roller during the chain traction movement, and then clean the ash on the scraper surface through the cleaning roller. At the same time, the adjustment motor drives gear one to rotate and then drives gear two to rotate, and then drives the cleaning roller to rotate, thereby improving the cleaning effect and preventing ash from adhering to the scraper surface, causing it to enter the pump later and affect the life of the equipment.

[0024] 2. Compared with the existing technology, this scraper dehydration and slag remover suitable for thermal power plants can realize the rapid disassembly and assembly of the mounting plate by setting a positioning component and using a positioning pin to pass through the swing arm and sleeve the mounting hole, thereby facilitating the regular disassembly of the cleaning roller for cleaning and replacement, and maintaining the cleaning effect of the cleaning roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of a scraper-type dehydration and slag removal machine suitable for thermal power plants proposed by the utility model;

[0026] Figure 2 This is a schematic structural diagram of a cleaning component of a scraper-type dehydration and slag removal machine suitable for thermal power plants proposed in the utility model;

[0027] Figure 3 This is a schematic diagram of the partial structure of a scraper-type dehydration and slag removal machine suitable for thermal power plants proposed by the utility model;

[0028] Figure 4 The utility model is a schematic diagram of the disassembled structure of the cleaning components of a scraper-type dehydration and slag removal machine suitable for thermal power plants.

[0029] Legend:

[0030] 1. Scraper slag collector; 11. Machine body; 12. Slag pit; 13. Drive shaft; 14. Sprocket; 15. Chain; 16. Scraper body; 17. Dual-axis motor; 18. Synchronous mechanism; 1801. Synchronous wheel; 1802. Synchronous belt; 2. Cleaning assembly; 21. Support plate; 22. Mounting shaft; 23. Swing arm; 24. Mounting plate; 25. Mounting hole; 26. Cleaning roller; 27. Adjustment motor; 28. Gear 1; 29. Gear 2; 210. Protective plate; 3. Positioning assembly; 31. Positioning pin; 32. Connecting cap; 33. Spring. DETAILED DESCRIPTION

[0031] Reference Figure 1-4 The utility model provides a scraper type dehydration slag remover suitable for thermal power plants: it includes a scraper slag remover 1, the scraper slag remover 1 includes a body shell 11 and a slag well 12, the slag well 12 is arranged above the body shell 11, a plurality of scraper bodies 16 are arranged in the body shell 11, and a cleaning component 2 is fixedly arranged on one side of the body shell 11 near the discharge end.

[0032] The cleaning assembly 2 includes a support plate 21, and there are two support plates 21. The two support plates 21 are respectively fixedly connected to the front and rear plates of the body shell 11, and a mounting shaft 22 is rotatably connected between the two support plates 21. The mounting shaft 22 is fixedly sleeved with a swing arm 23 near the outer wall of both ends, and the lower ends of the two swing arms 23 are slidably sleeved with a mounting plate 24. A cleaning roller 26 is rotatably connected between the two mounting plates 24 near the lower end. The scraper body 16 is cleaned by the cleaning roller 26 to prevent ash from adhering.

[0033] An adjusting motor 27 is fixedly connected to the outer wall of one of the mounting plates 24, and the output end of the adjusting motor 27 passes through the mounting plate 24 and is fixedly sleeved with a gear 1 28. The front end of the rotating shaft fixedly sleeved in the cleaning roller 26 passes through the mounting plate 24 and is fixedly sleeved with a gear 2 29. Gear 1 28 and gear 2 29 are engaged with each other. A protective plate 210 is fixedly connected to the outer wall of one of the mounting plates 24. The bottom plate and the vertical plate of the protective plate 210 are respectively arranged at the lower end of the adjusting motor 27 and at a position close to the side of the scraper body 16. The adjusting motor 27 drives the gear 1 28 to rotate, and then drives the gear 2 29 to rotate, and then drives the cleaning roller 26 to actively rotate, thereby improving the cleaning effect of the scraper body 16.

[0034] When the cam 33 is in the unlock state, the cam 33 is unlocked, and the lock 23 is unlocked, so that the cam 33 is unlocked, and the lock 23 is unlocked.

[0035] A plurality of sprockets 14 are rotatably connected in the body shell 11, and chains 15 are sleeved on the outer walls of the plurality of sprockets 14 at the front and rear ends, and the plurality of sprockets 14 and the sleeved chains 15 are meshed. The front and rear ends of the plurality of scraper bodies 16 are fixedly connected to the two chains 15 at the front and rear ends. A dual-axis motor 17 is fixedly connected above the discharge end of the body shell 11, wherein the front and rear sprockets 14 at the discharge end of the body shell 11 are fixedly sleeved with a drive shaft 13, and a synchronization mechanism 18 is sleeved between the front and rear output ends of the dual-axis motor 17 and the two drive shafts 13. The synchronization mechanism 18 includes a synchronization wheel 1 801 and a synchronous belt 1802 sleeved on the outer wall of the synchronous wheel 1801, the synchronous belt 1802 is engaged with the two sleeved synchronous wheels 1801, and the dual-axis motor 17 is started to drive the sleeved synchronous wheel 1801 to rotate, and then the synchronous wheel 1801 sleeved on the other end is driven to rotate under the transmission action of the synchronous belt 1802, and then the drive shaft 13 is driven to rotate, and then the sprocket 14 is driven to rotate, thereby driving the chain 15 to move, and the scraper body 16 is driven to move through the chain 15. Since the scraper slag machine 1 and the slag pit 12 thereon are existing equipment, their principles and connection relationships are not described in detail here.

[0036] Working principle: By utilizing the synchronous transmission relationship of the synchronization mechanism 18, the dual-axis motor 17 can drive the drive shaft 13 at the front and rear ends to rotate, thereby driving the sprocket 14 to rotate, and then driving the chain 15 to move, thereby pulling the scraper body 16 to move and filter the ash. When the scraper body 16 drives the ash to the highest point for unloading, the cleaning roller 26 will be pressed toward the scraper body 16 under the action of gravity. As the scraper body 16 rotates, the cleaning roller 26 will gradually clean the surface of the scraper body 16. At the same time, the adjustment motor 27 drives the gear 1 28 to rotate, and then drives the gear 2 29 to rotate, and then drives the cleaning roller 26 to rotate, further improving the cleaning force, thereby improving the cleaning effect.

[0037] When the cleaning roller 26 needs to be cleaned and replaced regularly, the mounting plate 24 can be removed by pulling the positioning pin 31 out of the mounting hole 25 through the connecting cap 32, so that the cleaning roller 26 can be taken out of the body shell 11, making it easier to clean it and maintain the cleaning effect of the cleaning roller 26.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A scraper type dewatering slag remover suitable for a thermal power plant, comprising a scraper slag remover (1), characterized in that: The scraper slag scooping machine (1) comprises a machine body shell (11) and a slag well (12), wherein the slag well (12) is arranged above the machine body shell (11), a plurality of scraper bodies (16) are arranged in the machine body shell (11), and a cleaning component (2) is fixedly arranged in the machine body shell (11) near the discharge end. The cleaning assembly (2) comprises a support plate (21), wherein there are two support plates (21) in total, and the two support plates (21) are fixedly connected to the front and rear plates of the machine body shell (11), respectively, and a mounting shaft (22) is rotatably connected between the two support plates (21), and a swing arm (23) is fixedly sleeved on the outer wall of each end of the mounting shaft (22), and the lower ends of the two swing arms (23) are slidably sleeved with a mounting plate (24), and a cleaning roller (26) is rotatably connected between the two mounting plates (24) near the lower end.

2. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 1, characterized in that: An adjusting motor (27) is fixedly connected to the outer wall of one of the mounting plates (24), the output end of the adjusting motor (27) passes through the mounting plate (24) and is fixedly sleeved with a gear 1 (28), the front end of the rotating shaft fixedly sleeved in the cleaning roller (26) passes through the mounting plate (24) and is fixedly sleeved with a gear 2 (29), and the gear 1 (28) and the gear 2 (29) are meshed with each other.

3. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 2, characterized in that: A protective plate (210) is fixedly connected to the outer wall of one of the mounting plates (24), and the bottom plate and vertical plate of the protective plate (210) are respectively arranged at the lower end of the regulating motor (27) and a position close to one side of the scraper body (16).

4. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 1, characterized in that: The two swing arms (23) are both sleeved with a positioning assembly (3), the positioning assembly (3) includes a positioning pin (31), and there are two positioning pins (31). The two mounting plates (24) are both provided with mounting holes (25). The two positioning pins (31) are respectively movably connected to the two swing arms (23), and the two positioning pins (31) are respectively passed through the two mounting holes (25).

5. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 4, characterized in that: A connecting cap (32) is fixedly sleeved on the outer wall of the opposite end of the two positioning pins (31), and a spring (33) is fixedly connected between the two connecting caps (32) and the two swing arms (23). The two springs (33) are movably sleeved on the outer ends of the two positioning pins (31).

6. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 1, characterized in that: A plurality of sprockets (14) are rotatably connected in the housing (11), and chains (15) are sleeved on the outer walls of the plurality of sprockets (14) at the front and rear ends, and the plurality of sprockets (14) and the sleeved chains (15) are meshed and arranged, and the front and rear ends of the plurality of scraper bodies (16) are fixedly connected to the two chains (15) at the front and rear ends.

7. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 6, characterized in that: A dual-axis motor (17) is fixedly connected above the unloading end of the machine housing (11), wherein a drive shaft (13) is fixedly sleeved in the front and rear sprockets (14) located at the unloading end of the machine housing (11), and a synchronization mechanism (18) is sleeved between the front and rear output ends of the dual-axis motor (17) and the two drive shafts (13).

8. The scraper type dehydration and slag removal machine suitable for thermal power plants according to claim 7, characterized in that: The synchronization mechanism (18) comprises a synchronization wheel (1801) and a synchronization belt (1802) sleeved on the outer wall of the synchronization wheel (1801), and the synchronization belt (1802) is meshed with the two sleeved synchronization wheels (1801).

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