Arc-shaped wear-resistant lining plate convenient to disassemble and used in coal drop pipe
By installing a curved wear-resistant lining plate that is easy to disassemble at the angles and bends of the coal-falling pipe, the problem of coal accumulation and blockage of coal in the coal-falling pipe is solved, and the coal powder flowability and pipeline service life are improved.
Patent Information
- Application Number
- CN202421832516.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
Existing coal-falling pipes are prone to accumulation of coal at angles and bends, resulting in the risk of coal blockage, affecting the fluidity of coal flow and the service life of the pipeline.
A curved wear-resistant lining plate that is easy to disassemble is designed, installed at the angles and bends of the coal-falling pipe, and fixed by countersunk bolts to form an arc shape to reduce the risk of coal accumulation.
It effectively reduces the risk of coal accumulation at the angle and bends of coal falling pipes, improves the fluidity of coal powder, extends the service life of coal falling pipes, and simplifies the installation and disassembly process.
Smart Images
Figure CN222906573U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wear-resistant liners, in particular to an arc-shaped wear-resistant liner for a coal dropping pipe that is easy to disassemble. Background Technique
[0002] The coal dropping pipe is a coal flow transportation pipe that avoids excessive dust generation during the falling process of the coal flow and plays a role in guiding or diverting the coal flow during the falling process. It is mainly used in industries such as coal, ports, thermal power plants, coal transfer stations, coal washing plants, and coal-fired industrial boilers. The coal dropping pipe generally includes components such as a coal dropping hopper, a downcomer, and a diversion trough. Longer coal dropping pipes also need to be equipped with air locking devices to reduce dust emission. Components such as diversion flap gates also need to be added during diversion.
[0003] Currently, most coal dropping pipes in domestic thermal power plants use square coal dropping pipes. One drawback of square coal dropping pipes is that coal is likely to accumulate at the corners and also at the bent parts of the scouring surface of the coal dropping pipe. Therefore, an arc-shaped wear-resistant liner is designed and installed at the four corners and bent parts of the coal dropping pipe, which can greatly reduce the risk of coal sticking and blocking in the coal dropping pipe. For this reason, we propose an arc-shaped wear-resistant liner for a coal dropping pipe that is easy to disassemble. Content of the Utility Model
[0004] The utility model provides a new type of arc-shaped wear-resistant liner with detachable replacement. According to the size requirements of the on-site coal dropping pipe, wear-resistant liners with a certain arc are fixedly installed at the four corners after measurement. The inner liner and the coal dropping pipe are fixed with countersunk bolts, which is convenient for replacement. In this way, the four right angles of the square coal dropping pipe become arc-shaped, and it is not easy for coal to accumulate. At the bent part of the scouring surface of the coal flow in the coal dropping pipe, an arc-shaped wear-resistant liner with a certain arc is also installed. In this way, when the coal humidity is relatively high, coal will not accumulate more and more at the bent part. It makes the coal flow better and achieves the purpose of preventing coal sticking and blocking at the elbow of the coal dropping pipe.
[0005] The utility model has the advantages of improving the fluidity of pulverized coal, preventing coal accumulation at the four right angles and elbow blockage of the coal dropping pipe, extending the service life of the coal dropping pipe, being convenient for disassembly and installation, being simple to manufacture, and greatly reducing the transformation cost. It can be directly installed on the inner wall without replacing the outer wall of the coal dropping pipe.
[0006] To achieve the above object, the utility model provides the following technical solutions:
[0007] An arc-shaped wear-resistant lining for use inside a coal dropping pipe that is easy to disassemble, comprising a main body mechanism, a reinforcement mechanism, a functional mechanism, and an auxiliary mechanism. The reinforcement mechanism is located inside the main body mechanism, the functional mechanism is located inside the main body mechanism, and the auxiliary mechanism is located inside the main body mechanism. The main body mechanism includes the outer wall of the first coal dropping pipe, the outer wall of the second coal dropping pipe, and fixing nuts. The outer wall of the first coal dropping pipe is fixedly installed on one side of the outer wall of the second coal dropping pipe, and the outer wall of the second coal dropping pipe is fixedly installed on one side of the outer wall of the first coal dropping pipe. The fixing nuts are movably installed on one side of the top fixing bolts, side fixing bolts, connecting fixing bolts, reinforcement fixing bolts, first corner fixing bolts, and second corner fixing bolts.
[0008] Preferably, the reinforcement mechanism includes a wear-resistant lining on the inner wall of the first coal dropping pipe, a wear-resistant lining on the inner wall of the second coal dropping pipe, top fixing bolts, and side fixing bolts. The wear-resistant lining on the inner wall of the first coal dropping pipe is fixedly installed inside the outer wall of the first coal dropping pipe, and the wear-resistant lining on the inner wall of the second coal dropping pipe is fixedly installed inside the outer wall of the first coal dropping pipe.
[0009] Preferably, the functional mechanism includes a first arc-shaped wear-resistant lining on the inner wall, a second arc-shaped wear-resistant lining on the inner wall, connecting fixing bolts, reinforcement fixing bolts, and fixing holes. The first arc-shaped wear-resistant lining on the inner wall is fixedly installed inside the outer wall of the first coal dropping pipe, and the second arc-shaped wear-resistant lining on the inner wall is fixedly installed inside the outer wall of the first coal dropping pipe.
[0010] Preferably, the auxiliary mechanism includes an arc-shaped wear-resistant lining at the corner of the first coal dropping pipe, an arc-shaped wear-resistant lining at the corner of the second coal dropping pipe, a first corner fixing bolt, and a second corner fixing bolt. The arc-shaped wear-resistant lining at the corner of the first coal dropping pipe is fixedly installed inside the outer wall of the first coal dropping pipe and the outer wall of the second coal dropping pipe, and the arc-shaped wear-resistant lining at the corner of the second coal dropping pipe is fixedly installed inside the outer wall of the first coal dropping pipe and the outer wall of the second coal dropping pipe.
[0011] Preferably, the top fixing bolts are movably installed inside the wear-resistant lining on the inner wall of the first coal dropping pipe and the outer wall of the first coal dropping pipe, and the side fixing bolts are movably installed inside the wear-resistant lining on the inner wall of the second coal dropping pipe and the outer wall of the first coal dropping pipe.
[0012] Preferably, the connecting fixing bolts are movably installed inside the first arc-shaped wear-resistant lining on the inner wall, the second arc-shaped wear-resistant lining on the inner wall, and the outer wall of the first coal dropping pipe. The reinforcement fixing bolts are movably installed inside the first arc-shaped wear-resistant lining on the inner wall, the second arc-shaped wear-resistant lining on the inner wall, and the outer wall of the first coal dropping pipe. The fixing holes are opened on one side of the wear-resistant lining on the inner wall of the first coal dropping pipe, the wear-resistant lining on the inner wall of the second coal dropping pipe, the first arc-shaped wear-resistant lining on the inner wall, the second arc-shaped wear-resistant lining on the inner wall, the arc-shaped wear-resistant lining at the corner of the first coal dropping pipe, and the arc-shaped wear-resistant lining at the corner of the second coal dropping pipe.
[0013] Preferably, the first corner fixing bolt is movably installed inside the arc-shaped wear-resistant lining at the corner of the first coal dropping pipe, the arc-shaped wear-resistant lining at the corner of the second coal dropping pipe, the outer wall of the first coal dropping pipe, and the outer wall of the second coal dropping pipe. The second corner fixing bolt is movably installed inside the arc-shaped wear-resistant lining at the corner of the first coal dropping pipe, the arc-shaped wear-resistant lining at the corner of the second coal dropping pipe, the outer wall of the first coal dropping pipe, and the outer wall of the second coal dropping pipe.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. For the arc-shaped wear-resistant lining inside the coal dropping pipe that is easy to disassemble, the first inner wall arc-shaped wear-resistant lining and the second inner wall arc-shaped wear-resistant lining are installed at the four corners of the inner wall of the outer wall of the first coal dropping pipe, changing the square blanking port into an arc shape. The arc-shaped wear-resistant lining is fixed to the inner wall with connecting fixing bolts and reinforcing fixing bolts, which is convenient for installation and can prevent coal accumulation at the corners.
[0016] 2. For the arc-shaped wear-resistant lining inside the coal dropping pipe that is easy to disassemble, at the bent part of the coal dropping pipe, the arc-shaped wear-resistant lining is also installed with the first corner fixing bolt and the second corner fixing bolt, which can prevent coal accumulation due to coal scouring on the area of the bent coal dropping pipe. The installation is simple and the disassembly is convenient, greatly enhancing the fluidity of coal and making it not easy to accumulate coal at the bent part. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is the overall structural schematic diagram of the present utility model;
[0018] Figure 2 is the cross-sectional structural schematic diagram of the present utility model;
[0019] Figure 3 is the schematic diagram of the wear-resistant lining on the inner wall of the present utility model;
[0020] Figure 4 is the schematic diagram of the arc-shaped wear-resistant lining of the present utility model.
[0021] In the figure: 100, outer wall of the first coal dropping pipe; 101, outer wall of the second coal dropping pipe; 102, fixing nut; 200, wear-resistant lining on the inner wall of the first coal dropping pipe; 201, wear-resistant lining on the inner wall of the second coal dropping pipe; 202, top fixing bolt; 203, side fixing bolt; 300, first inner wall arc-shaped wear-resistant lining; 301, second inner wall arc-shaped wear-resistant lining; 302, connecting fixing bolt; 303, reinforcing fixing bolt; 304, fixing hole position; 400, arc-shaped wear-resistant lining at the corner of the first coal dropping pipe; 401, arc-shaped wear-resistant lining at the corner of the second coal dropping pipe; 402, first corner fixing bolt; 403, second corner fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] Please refer to Figures 1-4 As shown, a technical solution provided by the present utility model:
[0024] An arc-shaped wear-resistant lining plate for a coal dropping pipe that is easy to disassemble, including a main body mechanism, a strengthening mechanism, a functional mechanism, and an auxiliary mechanism. The strengthening mechanism is located inside the main body mechanism, the functional mechanism is located inside the main body mechanism, and the auxiliary mechanism is located inside the main body mechanism. The main body mechanism includes the outer wall 100 of the first coal dropping pipe, the outer wall 101 of the second coal dropping pipe, and a fixing nut 102. The outer wall 100 of the first coal dropping pipe is fixedly installed on one side of the outer wall 101 of the second coal dropping pipe, and the outer wall 101 of the second coal dropping pipe is fixedly installed on one side of the outer wall 100 of the first coal dropping pipe. The fixing nut 102 is movably installed on one side of the top fixing bolt 202, the side fixing bolt 203, the connecting fixing bolt 302, the strengthening fixing bolt 303, the first corner fixing bolt 402, and the second corner fixing bolt 403.
[0025] In this embodiment, preferably, the strengthening mechanism includes the wear-resistant lining plate 200 on the inner wall of the first coal dropping pipe, the wear-resistant lining plate 201 on the inner wall of the second coal dropping pipe, the top fixing bolt 202, and the side fixing bolt 203. The wear-resistant lining plate 200 on the inner wall of the first coal dropping pipe is fixedly installed inside the outer wall 100 of the first coal dropping pipe, and the wear-resistant lining plate 201 on the inner wall of the second coal dropping pipe is fixedly installed inside the outer wall 100 of the first coal dropping pipe.
[0026] In this embodiment, preferably, the functional mechanism includes the first inner wall arc-shaped wear-resistant lining plate 300, the second inner wall arc-shaped wear-resistant lining plate 301, the connecting fixing bolt 302, the strengthening fixing bolt 303, and the fixing hole position 304. The first inner wall arc-shaped wear-resistant lining plate 300 is fixedly installed inside the outer wall 100 of the first coal dropping pipe, and the second inner wall arc-shaped wear-resistant lining plate 301 is fixedly installed inside the outer wall 100 of the first coal dropping pipe.
[0027] In this example, preferably, the auxiliary mechanism includes an arc-shaped wear-resistant lining plate 400 at the corner of the first coal dropping pipe, an arc-shaped wear-resistant lining plate 401 at the corner of the second coal dropping pipe, a first corner fixing bolt 402, and a second corner fixing bolt 403. The arc-shaped wear-resistant lining plate 400 at the corner of the first coal dropping pipe is fixedly installed inside the outer wall 100 of the first coal dropping pipe and the outer wall 101 of the second coal dropping pipe. The arc-shaped wear-resistant lining plate 401 at the corner of the second coal dropping pipe is fixedly installed inside the outer wall 100 of the first coal dropping pipe and the outer wall 101 of the second coal dropping pipe.
[0028] In this example, preferably, the top fixing bolt 202 is movably installed inside the wear-resistant lining plate 200 on the inner wall of the first coal dropping pipe and the outer wall 100 of the first coal dropping pipe. The side fixing bolt 203 is movably installed inside the wear-resistant lining plate 201 on the inner wall of the second coal dropping pipe and the outer wall 100 of the first coal dropping pipe.
[0029] In this example, preferably, the connecting fixing bolt 302 is movably installed inside the first inner wall arc-shaped wear-resistant lining plate 300, the second inner wall arc-shaped wear-resistant lining plate 301, and the outer wall 100 of the first coal dropping pipe. The reinforcing fixing bolt 303 is movably installed inside the first inner wall arc-shaped wear-resistant lining plate 300, the second inner wall arc-shaped wear-resistant lining plate 301, and the outer wall 100 of the first coal dropping pipe. The fixing hole 304 is opened on one side of the wear-resistant lining plate 200 on the inner wall of the first coal dropping pipe, the wear-resistant lining plate 201 on the inner wall of the second coal dropping pipe, the first inner wall arc-shaped wear-resistant lining plate 300, the second inner wall arc-shaped wear-resistant lining plate 301, the arc-shaped wear-resistant lining plate 400 at the corner of the first coal dropping pipe, and the arc-shaped wear-resistant lining plate 401 at the corner of the second coal dropping pipe.
[0030] In this example, preferably, the first corner fixing bolt 402 is movably installed inside the arc-shaped wear-resistant lining plate 400 at the corner of the first coal dropping pipe, the arc-shaped wear-resistant lining plate 401 at the corner of the second coal dropping pipe, the outer wall 100 of the first coal dropping pipe, and the outer wall 101 of the second coal dropping pipe. The second corner fixing bolt 403 is movably installed inside the arc-shaped wear-resistant lining plate 400 at the corner of the first coal dropping pipe, the arc-shaped wear-resistant lining plate 401 at the corner of the second coal dropping pipe, the outer wall 100 of the first coal dropping pipe, and the outer wall 101 of the second coal dropping pipe.
[0031] When the arc-shaped wear-resistant lining plate for the coal dropping pipe that is easy to disassemble in this embodiment is in use, the first inner wall arc-shaped wear-resistant lining plate 300 and the second inner wall arc-shaped wear-resistant lining plate 301 are installed at the four corners of the inner wall of the outer wall 100 of the first coal dropping pipe, changing the square blanking port into an arc shape. The arc-shaped wear-resistant lining plate is fixed to the inner wall with the connecting fixing bolt 302 and the reinforcing fixing bolt 303, which is convenient for installation and can prevent coal accumulation at the corners.
[0032] At the bent part of the coal dropping pipe, if the arc-shaped wear-resistant lining plate is installed with the first corner fixing bolt 402 and the second corner fixing bolt 403 in the same way, it can prevent the coal in the coal dropping pipe from scouring and accumulating coal on the area. The installation is simple and the disassembly is convenient, which greatly enhances the fluidity of the coal and makes it not easy to accumulate coal at the bent part.
[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. An arc-shaped wear-resistant lining plate for use in a coal drop pipe that is easy to disassemble, comprising a main body mechanism, a reinforcement mechanism, a functional mechanism, and an auxiliary mechanism, characterized in that: The reinforcing mechanism is located inside the main mechanism, the functional mechanism is located inside the main mechanism, and the auxiliary mechanism is located inside the main mechanism. The main mechanism includes a first coal dropping pipe outer wall (100), a second coal dropping pipe outer wall (101), and a fixing nut (102). The first coal dropping pipe outer wall (100) is fixedly installed on one side of the second coal dropping pipe outer wall (101), and the second coal dropping pipe outer wall (101) is fixedly installed on one side of the first coal dropping pipe outer wall (100). The fixing nut (102) is movably installed on one side of the top fixing bolt (202), the side fixing bolt (203), the connecting fixing bolt (302), the reinforcing fixing bolt (303), the first corner fixing bolt (402), and the second corner fixing bolt (403).
2. The arc-shaped wear-resistant lining plate for use in a coal drop pipe that is easy to disassemble according to claim 1 is characterized in that: The reinforcing mechanism comprises a first coal dropping pipe inner wall wear-resistant lining (200), a second coal dropping pipe inner wall wear-resistant lining (201), a top fixing bolt (202), and a side fixing bolt (203); the first coal dropping pipe inner wall wear-resistant lining (200) is fixedly installed inside the first coal dropping pipe outer wall (100); and the second coal dropping pipe inner wall wear-resistant lining (201) is fixedly installed inside the first coal dropping pipe outer wall (100).
3. The arc-shaped wear-resistant lining plate for use in a coal drop pipe that is easy to disassemble according to claim 1 is characterized in that: The functional mechanism comprises a first inner wall arc-shaped wear-resistant lining plate (300), a second inner wall arc-shaped wear-resistant lining plate (301), connecting fixing bolts (302), reinforcing fixing bolts (303), and fixing holes (304); the first inner wall arc-shaped wear-resistant lining plate (300) is fixedly installed inside the outer wall (100) of the first coal dropping pipeline, and the second inner wall arc-shaped wear-resistant lining plate (301) is fixedly installed inside the outer wall (100) of the first coal dropping pipeline.
4. The arc-shaped wear-resistant lining plate for use in a coal drop pipe that is easy to disassemble according to claim 1 is characterized in that: The auxiliary mechanism comprises an arc-shaped wear-resistant lining plate (400) at the corner of the first coal dropping pipe, an arc-shaped wear-resistant lining plate (401) at the corner of the second coal dropping pipe, a first corner fixing bolt (402), and a second corner fixing bolt (403); the arc-shaped wear-resistant lining plate (400) at the corner of the first coal dropping pipe is fixedly installed inside the outer wall (100) of the first coal dropping pipe and the outer wall (101) of the second coal dropping pipe; and the arc-shaped wear-resistant lining plate (401) at the corner of the second coal dropping pipe is fixedly installed inside the outer wall (100) of the first coal dropping pipe and the outer wall (101) of the second coal dropping pipe.
5. The arc-shaped wear-resistant lining plate for use in a coal drop pipe that is easy to disassemble according to claim 2 is characterized in that: The top fixing bolt (202) is movably installed inside the wear-resistant lining plate (200) on the inner wall of the first coal dropping pipe and the outer wall (100) of the first coal dropping pipe, and the side fixing bolt (203) is movably installed inside the wear-resistant lining plate (201) on the inner wall of the second coal dropping pipe and the outer wall (100) of the first coal dropping pipe.
6. The easily disassembled arc-shaped wear-resistant lining plate for use in a coal drop pipe according to claim 3, characterized in that: The connecting fixing bolts (302) are movably installed inside the first inner wall arc-shaped wear-resistant lining (300), the second inner wall arc-shaped wear-resistant lining (301), and the outer wall (100) of the first coal dropping pipe; the reinforcing fixing bolts (303) are movably installed inside the first inner wall arc-shaped wear-resistant lining (300), the second inner wall arc-shaped wear-resistant lining (301), and the outer wall (100) of the first coal dropping pipe; the fixing holes (304) are provided on one side of the first coal dropping pipe inner wall wear-resistant lining (200), the second coal dropping pipe inner wall wear-resistant lining (201), the first inner wall arc-shaped wear-resistant lining (300), the second inner wall arc-shaped wear-resistant lining (301), the arc-shaped wear-resistant lining (400) at the corner of the first coal dropping pipe, and the arc-shaped wear-resistant lining (401) at the corner of the second coal dropping pipe.
7. The arc-shaped wear-resistant lining plate for use in a coal drop pipe that is easy to disassemble according to claim 4 is characterized in that: The first corner fixing bolt (402) is movably installed in the arc-shaped wear-resistant lining (400) at the corner of the first coal drop pipe, the arc-shaped wear-resistant lining (401) at the corner of the second coal drop pipe, the outer wall (100) of the first coal drop pipe, and the outer wall (101) of the second coal drop pipe, and the second corner fixing bolt (403) is movably installed in the arc-shaped wear-resistant lining (400) at the corner of the first coal drop pipe, the arc-shaped wear-resistant lining (401) at the corner of the second coal drop pipe, the outer wall (100) of the first coal drop pipe, and the outer wall (101) of the second coal drop pipe.