Novel scraper blade of submerged chain conveyor of thermal power generating unit
By designing a new thermal power unit slag retrieval machine scraper, using the bottom plate, stabilized frame, reinforcement block, top frame and other structures, the oil pressure increase and tripping caused by the large amount of ash during high load operation of the slag retrieval machine is solved, and a more stable and safe operation of the slag retrieval machine is achieved.
Patent Information
- Application Number
- CN202420773995.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-15
AI Technical Summary
In thermal power units, when the slag retrieval machine is running at high load, the amount of ash slag is large, resulting in a large return flow of fine slag, and a gap appears between the scraper and the bottom plate, causing the oil pressure of the slag retrieval machine to rise or overload trip, destroying the furnace water seal, causing accidents to release slag, affecting the safe and stable operation of the boiler.
A new type of thermal power unit slag-fishing machine scraper is designed. By setting up structures such as bottom plate, stabilizing frame, reinforcement block, top frame, reinforcement rib, top plate, side plate, etc., the stability of the stable frame is ensured, limiting and shaving ash, reducing ash slag loss, and enhancing overall stability and wear resistance.
This new scraper improves the operating stability of the slag retrieval machine, avoids tripping and accidents, reduces maintenance costs, and ensures the safe and stable operation of the boiler.
Smart Images

Figure CN222670032U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal power units, in particular to a novel scraper for a slag scooping machine of a thermal power unit. Background Art
[0002] With the continuous advancement of blending and co-firing, the amount of ash produced by the boiler at high load has increased significantly, exceeding the design output of the slag remover. When the unit is running at high load, it is easy to cause excessive ash to overflow from the slope of the slag remover, polluting the surrounding environment, and even causing the slag remover to overload and trip. At the same time, due to the long-term high-load operation of the slag remover, the wear of the scraper is accelerated, threatening the safe and stable operation of the slag remover and increasing the maintenance and repair costs.
[0003] During the operation of the slag remover, due to factors such as large amount of slag and fine slag, a large amount of fine slag reflux occurs in the climbing section of the slag remover. During high load periods, the load of the slag remover increases and a gap appears between the scraper and the bottom plate when the chain is tightened, aggravating the reflux of fine slag. A large amount of fine slag is deposited in the arcing section of the slag remover, causing the oil pressure of the slag remover to increase or overload tripping, forcing the furnace water seal to be destroyed for accidental slag discharge, seriously affecting the safe and stable operation of the boiler. Therefore, it has become an urgent problem to be solved at present to improve and improve the above-mentioned problems. Utility Model Content
[0004] The utility model aims to provide a novel scraper for a slag remover of a thermal power unit to solve the problem in the above-mentioned background technology that a large amount of fine slag is deposited in the arc starting section of the slag remover, causing the oil pressure of the slag remover to increase or overload trip, forcing the destruction of the furnace water seal for accidental slag discharge, and seriously affecting the safe and stable operation of the boiler.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel scraper for a slag scooping machine of a thermal power unit, comprising a bottom plate, a top surface of the bottom plate is fixedly connected to a stabilizing frame, one side of the inner wall of the stabilizing frame is fixedly connected to a first reinforcement block, and the other side of the inner wall of the stabilizing frame is fixedly connected to a second reinforcement block;
[0006] A top frame is installed on the upper surface of the stabilizing frame, a reinforcing rib is inserted and installed inside the top frame, and a top plate is fixedly connected to the upper surface of the top frame.
[0007] Preferably, a first side plate is fixedly connected to a left side surface of the top plate, and a second side plate is fixedly connected to a right side surface of the top plate.
[0008] Preferably, a front connecting plate is fixedly connected to the front surface of the stabilizing frame, and a reinforcing plate is provided on the back side of the front connecting plate.
[0009] Preferably, a rear connecting plate is fixedly connected to the back surface of the stabilizing frame, and a triangular plate is provided on the front surface of the rear connecting plate.
[0010] Preferably, the front surface of the front connecting plate is fixedly connected to the second supporting frame, and the back surface of the rear connecting plate is fixedly connected to the first supporting frame.
[0011] Preferably, the front connecting plate and the triangular plate are triangular in shape, and the front connecting plate and the triangular plate have the same size.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. The scraper of the slag remover of the new thermal power unit is provided with a bottom plate, a stable frame, a first reinforcement block, a second reinforcement block, a top frame, reinforcement ribs, a top plate, a first side plate and a second side plate. When in use, the stable frame is supported by the bottom plate, and the stability of the stable frame can be ensured by the first reinforcement block and the second reinforcement block, so as to prevent slag water from entering the interior of the stable frame and affecting the working load. At the same time, the ash and slag can be limited and shielded by the design of the top frame, and the reinforcement ribs can enhance the stability of the top frame. Subsequently, the loss of ash and slag during transportation can be reduced by the design of the top plate, the first side plate and the second side plate, which reflects the practicality of the design. The design greatly improves the operating stability of the slag remover, avoids the problems of accidental slag discharge and load reduction caused by the tripping of the slag remover, and avoids the damage of the water seal caused by the discharge of water. The damage of the water seal will not only affect the safe and stable operation of the unit, but also easily cause falling slag to injure people, so that the safe operation of the unit is effectively guaranteed.
[0014] 2. The scraper of the new type of thermal power unit slag remover can guide the ash impurities when in use through the design of the front connecting plate, reinforcing plate, rear connecting plate, triangular plate, first support frame and second support frame, and then connect with the first support frame and the second support frame to enhance the overall stabilizing effect of the bottom plate and the stabilizing frame, ensure its stability when in use, ensure the overall wear resistance, and reflect the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;
[0016] Figure 2 It is a three-dimensional schematic diagram of the structure of the front connecting plate and the rear connecting plate of the utility model;
[0017] Figure 3 It is a three-dimensional schematic diagram of the bottom plate and the second side plate structure of the utility model;
[0018] Figure 4 It is a schematic diagram of the disassembly of the bottom plate and the second side plate structure of the utility model.
[0019] In the figure: 1. bottom plate; 2. stabilizing frame; 3. first reinforcing block; 4. second reinforcing block; 5. top frame; 6. reinforcing ribs; 7. top plate; 8. first side plate; 9. second side plate; 10. front connecting plate; 11. reinforcing plate; 12. rear connecting plate; 13. triangular plate; 14. first supporting frame; 15. second supporting frame. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figure 1-4 , an embodiment provided by the utility model:
[0022] A novel scraper for a slag scooping machine of a thermal power unit. The reinforcing ribs 6 used in this application are all products that can be directly purchased on the market. The principles and connection methods thereof are all prior arts well known to those skilled in the art, so they will not be described in detail herein. The invention comprises a bottom plate 1, a stabilizing frame 2 is fixedly connected to the top surface of the bottom plate 1, a first reinforcing block 3 is fixedly connected to one side of the inner wall of the stabilizing frame 2, a second reinforcing block 4 is fixedly connected to the other side of the inner wall of the stabilizing frame 2, a front connecting plate 10 is fixedly connected to the front surface of the stabilizing frame 2, a reinforcing plate 11 is arranged on the back of the front connecting plate 10, a rear connecting plate 12 is fixedly connected to the back of the stabilizing frame 2, and the rear connecting plate 12 A triangular plate 13 is provided on the front surface, a second support frame 15 is fixedly connected to the front surface of the front connecting plate 10, a first support frame 14 is fixedly connected to the back of the rear connecting plate 12, the front connecting plate 10 and the triangular plate 13 are triangular, and the front connecting plate 10 and the triangular plate 13 have the same size. The ash and slag impurities can be guided by the design of the front connecting plate 10, the reinforcing plate 11, the rear connecting plate 12 and the triangular plate 13, and then the connection between the first support frame 14 and the second support frame 15 is made to strengthen the overall stabilization effect of the bottom plate 1 and the stabilization frame 2, ensure its stability during use, and ensure the overall wear resistance;
[0023] The top frame 5 is installed on the upper surface of the stable frame 2, and a reinforcing rib 6 is inserted and installed inside the top frame 5. The upper surface of the top frame 5 is fixedly connected to a top plate 7, the left surface of the top plate 7 is fixedly connected to a first side plate 8, and the right surface of the top plate 7 is fixedly connected to a second side plate 9. The stable frame 2 is supported by the bottom plate 1, and the stability of the stable frame 2 can be ensured by the first reinforcing block 3 and the second reinforcing block 4, so as to prevent slag water from entering the interior of the stable frame 2 and affecting the working load. At the same time, the design of the top frame 5 can limit and block the ash and slag. At the same time, the reinforcing rib 6 can enhance the stability of the top frame 5. Subsequently, the design of the top plate 7, the first side plate 8 and the second side plate 9 can reduce the loss of ash and slag during the transportation process, which reflects the practicality of the design. The present design greatly improves the operating stability of the slag scooping machine, avoids the problems of accidental slag discharge and load reduction caused by the tripping of the slag scooping machine, and avoids the damage of the water seal caused by the discharge of water. The damage of the water seal will not only affect the safe and stable operation of the unit, but also easily cause slag falling and injury, so that the safe operation of the unit is effectively guaranteed.
[0024] Working principle: When in use, the stabilizing frame 2 is supported by the bottom plate 1, and the stability of the stabilizing frame 2 can be ensured by the first reinforcement block 3 and the second reinforcement block 4, so as to prevent slag water from entering the interior of the stabilizing frame 2 and affecting the working load, and the design of the top frame 5 can limit and shield the ash, and the reinforcing ribs 6 can enhance the stability of the top frame 5, and then the design of the top plate 7, the first side plate 8 and the second side plate 9 can reduce the loss of ash during transportation, and the design of the front connecting plate 10, the reinforcing plate 11, the rear connecting plate 12 and the triangular plate 13 can guide the ash impurities, and then the connection between the first support frame 14 and the second support frame 15 is strengthened to enhance the overall stability of the bottom plate 1 and the stabilizing frame 2. The above is all the working principles of the present invention.
[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A novel scraper for a slag remover of a thermal power unit, comprising a bottom plate (1), the top surface of the bottom plate (1) being fixedly connected to a stabilizing frame (2), characterized in that: A first reinforcement block (3) is fixedly connected to one side of the inner wall of the stabilizing frame (2), and a second reinforcement block (4) is fixedly connected to the other side of the inner wall of the stabilizing frame (2); A top frame (5), the top frame (5) is installed on the upper surface of the stabilizing frame (2), a reinforcing rib (6) is inserted and installed inside the top frame (5), and a top plate (7) is fixedly connected to the upper surface of the top frame (5).
2. A new type of scraper for a thermal power unit according to claim 1, characterized in that: The left side surface of the top plate (7) is fixedly connected to a first side plate (8), and the right side surface of the top plate (7) is fixedly connected to a second side plate (9).
3. A new type of scraper for a thermal power unit according to claim 1, characterized in that: A front connecting plate (10) is fixedly connected to the front surface of the stabilizing frame (2), and a reinforcing plate (11) is provided on the back side of the front connecting plate (10).
4. A new type of scraper for a thermal power unit according to claim 1, characterized in that: A rear connecting plate (12) is fixedly connected to the back of the stabilizing frame (2), and a triangular plate (13) is provided on the front surface of the rear connecting plate (12).
5. The new type of scraper for slag removal of thermal power unit according to claim 3 is characterized by: The front surface of the front connecting plate (10) is fixedly connected to a second supporting frame (15), and the back surface of the rear connecting plate (12) is fixedly connected to a first supporting frame (14).
6. A new type of scraper for a thermal power unit according to claim 3, characterized in that: The front connecting plate (10) and the triangular plate (13) are triangular in shape, and the front connecting plate (10) and the triangular plate (13) have the same size.