Ceramic shell for coal conveying chute of coal bunker of power plant

Abstract

The utility model relates to the technical field of power plant coal bunker assembling accessories, in particular to a ceramic shell for a power plant coal bunker coal conveying chute, which comprises a bluff body, a plurality of ceramic blocks are arranged on the upper side of the bluff body, one side of each ceramic block is provided with a positioning groove, the other side of each ceramic block is fixedly connected with a positioning block, and the positioning blocks are fixedly connected with the bluff body. The positioning blocks and the positioning grooves are connected in an inserted mode. The ceramic blocks, the positioning grooves and the positioning blocks are arranged, the multiple ceramic blocks are spliced, the corresponding positioning blocks are inserted into the positioning grooves, the multiple ceramic blocks are aligned, and in the using process, when flowing materials damage the corresponding ceramic blocks, the corresponding locking screws can be rotated, so that the ceramic blocks are locked, and the ceramic blocks are fixed. The ceramic block on the outermost side is detached, and then the corresponding ceramic block is pulled for replacement, so that local ceramic blocks can be replaced, resource waste is reduced, and the maintenance cost is saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power plant coal bunker assembly accessories, in particular to a ceramic shell for a coal bunker coal conveying chute of a power plant. BACKGROUND

[0002] The coal bunker coal conveying chute of a power plant is an extremely important component of the coal conveying system of the power plant. Since the environment around the coal bunker of the power plant is often complex, there may be water vapor, acidic or alkaline gases and the like. These substances are easy to corrode the inner wall of the chute, affecting its structure and performance. The ceramic shell has stable chemical properties and strong resistance to corrosive substances such as acid and alkali. It can maintain its performance in a humid environment or an environment with certain chemical pollution, ensuring the stable and reliable operation of the coal conveying chute. The coal bunker coal conveying chute is usually made of ceramic material.

[0003] Through retrieval, a ceramic shell applied to a coal bunker coal conveying chute of a power plant is disclosed in Chinese Patent Application No. CN201721414658.2, which comprises a U-shaped blunt body, an auxiliary plate seal groove, a first semicircular positioning protrusion, a second semicircular positioning protrusion, a first spiral positioning hole, a second spiral positioning hole, a first positioning screw and a second positioning screw. The beneficial effects of the ceramic shell applied to the coal bunker coal conveying chute of the power plant are as follows: 1. The design structure is reasonable and the ceramic lining plate can be quickly installed on the inner wall of the coal bunker coal conveying chute, and the disassembly and maintenance are convenient. Only the connection bolts need to be loosened, the downtime is shortened, and the crushing efficiency of the coal ball is improved. 2. The ceramic lining plate is wear-resistant, high-temperature-resistant, impact-resistant and has a long service life. It does not need to be frequently stopped for maintenance or replaced, ensuring normal working efficiency and reducing enterprise production economic cost.

[0004] For the related technology in the above, the inventors found that the following defects exist: when disassembling and maintaining, although it is convenient, the entire ceramic needs to be disassembled and replaced each time. In fact, only the parts with serious wear in some areas are replaced, while the parts with less friction are still intact. However, those parts that can still be used are replaced prematurely. On the one hand, this increases the workload and time cost of maintenance, and on the other hand, it also causes unnecessary waste of resources. At the same time, when coal flows in the coal conveying chute, due to the difference in coal, changes in flow rate and possible impact of large coal particles, the chute will produce continuous vibration. This vibration will continuously transmit to the bolts connecting the parts of the chute, which will damage the original fastening state of the bolts over time, causing them to loosen and increasing the risk of connection failure and coal leakage. UTILITARIAN CONTENT

[0005] In order to solve the problems mentioned in the above background art, the application provides a ceramic shell for a coal bunker coal conveying chute of a power plant.

[0006] The application provides a ceramic shell for a coal bunker coal conveying chute of a power plant, which adopts the following technical scheme: a blunt body is provided with a plurality of ceramic blocks on the upper side, a positioning groove is formed on one side of each of the ceramic blocks, and a positioning block is fixedly connected to the other side of each of the ceramic blocks, and the positioning block and the positioning groove are inserted together.

[0007] A plurality of locking blocks are fixedly connected to the upper side of the blunt body, a connecting hole is formed on one side of each of the locking blocks, a locking screw is fixedly connected to the inner wall of the connecting hole, a connecting block is fixedly connected to the upper side of each of two ceramic blocks, the connecting block and the locking screw are matched together, and a reinforcing mechanism matched with the locking screw is arranged on one side of each of the connecting blocks.

[0008] Optionally, the reinforcing mechanism comprises a movable groove formed on one side of the connecting block, a movable block fixedly connected to the inner wall of the movable groove, a U-shaped clamp fixedly connected to one side of the movable block and matched with the end of the locking screw, and a first spring fixedly connected between the movable block and the movable groove.

[0009] Optionally, the reinforcing mechanism further comprises a safety groove fixedly connected to one side of the connecting block, an elastic block slidingly matched to the inner wall of the safety groove, a safety block fixedly connected to one side of the elastic block, and a second spring fixedly connected to the lower side of the elastic block, wherein the lower end of the second spring is fixedly connected to the safety groove, and the safety block is abutted against the U-shaped clamp.

[0010] Optionally, the other side of each of the connecting blocks is fixedly connected with a nut, and the nut and the locking screw are threadedly matched together.

[0011] Optionally, the inner wall of the movable groove is fixedly connected with a guide rod, and the guide rod and the movable block are slidingly matched together.

[0012] Optionally, one side of each of the U-shaped clamps is fixedly connected with a force-releasing block, and one side of the force-releasing block is fixedly connected with a soft pad.

[0013] Optionally, the lower side of the inner wall of the U-shaped clamp is formed with a reinforcing groove, and the reinforcing groove and the safety block are matched together.

[0014] In summary, the application has the following beneficial technical effects:

[0015] 1. The utility model discloses a ceramic block, positioning groove, positioning block are set up through, through the splicing of multiple ceramic blocks, make corresponding positioning block insert the positioning groove, make multiple ceramic blocks align, in the process of using, when the flowing material is damaged to corresponding ceramic block, can through the rotation corresponding locking screw, the most outside ceramic block is dismantled, then through the pulling corresponding ceramic block and replaces to can realize the replacement of local ceramic block, reduce the waste of resources, save the cost of maintenance.

[0016] 2. The utility model discloses a reinforcing mechanism is set up, realizes when locking screw passes through connecting hole and the nut on the connecting block and fixes, through the extrusion of first spring to movable block, U-shaped card is clamped in the outside of locking screw, then through the extrusion of second spring to elastic block makes the safety block and blocks one side of U-shaped card, makes U-shaped card can further reinforce the head of locking screw, avoids because of the vibration and leads to the slack, improves stability, reduces the probability of harm because of bolt loosening. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram in the embodiment of the application.

[0018] Figure 2 It is the embodiment of the application Figure 1 The structure schematic diagram of enlarged A in the embodiment of the application is shown.

[0019] Figure 3 It is the structure schematic diagram of blunt body connection in the embodiment of the application.

[0020] Figure 4 It is the structure schematic diagram of ceramic block explosion in the embodiment of the application.

[0021] Fig. 1, blunt body; 2, ceramic block; 3, positioning groove; 4, positioning block; 5, locking block; 6, connecting hole; 7, locking screw; 8, connecting block; 9, reinforcing mechanism; 901, movable slot; 902, movable block; 903, U-shaped card; 904, first spring; 905, safety slot; 906, elastic block; 907, safety block; 908, second spring; 10, nut; 11, guide rod; 12, power block; 13, soft pad; 14, reinforcing slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings Figure 1 -4 to make further detailed description of the application.

[0023] The embodiment of the application discloses a kind of ceramic shell for power plant coal bunker coal conveying chute. As shown in Figures 1-4As shown, including blunt body 1, the upper side of blunt body 1 is provided with a plurality of ceramic blocks 2, one side of the plurality of ceramic blocks 2 is provided with a positioning groove 3, the other side of the plurality of ceramic blocks 2 is fixedly connected with a positioning block 4, the positioning block 4 and the positioning groove 3 are inserted.

[0024] The upper side of the blunt body 1 is fixedly connected with a plurality of locking blocks 5, one side of the plurality of locking blocks 5 is provided with a connecting hole 6, the inner wall of the connecting hole 6 is fixedly connected with a locking screw 7, the upper side of two of the plurality of ceramic blocks 2 is fixedly connected with a connecting block 8.

[0025] Please refer to Figure 1 , the other side of the plurality of connecting blocks 8 is fixedly connected with a nut 10, the nut 10 and the locking screw 7 are threadedly connected, when the locking screw 7 passes through the connecting hole 6 and the connecting block 8, the locking screw 7 is threadedly connected with the nut 10, when locked, the locking screw 7 stays at the position matched with the U-shaped clamp 903.

[0026] The connecting block 8 and the locking screw 7 are matched, one side of the plurality of connecting blocks 8 is provided with a reinforcing mechanism 9 matched with the locking screw 7.

[0027] Please refer to Figure 2 , the reinforcing mechanism 9 includes a movable groove 901 opened on one side of the connecting block 8, a movable block 902 fixedly connected to the inner wall of the movable groove 901, a U-shaped clamp 903 fixedly connected to one side of the movable block 902 and matched with the end of the locking screw 7, a first spring 904 fixedly connected between the movable block 902 and the movable groove 901, the U-shaped clamp 903 is locked with the locking screw 7 by pushing the movable block 902 with the first spring 904, realizing secondary reinforcement of the locking screw 7 and reducing the possibility of loosening.

[0028] Please refer to Figure 2 , the inner wall of the movable groove 901 is fixedly connected with a guide rod 11, the guide rod 11 and the movable block 902 are slidingly matched, when the movable block 902 moves, it slides on the guide rod 11, which can increase the stability and smoothness of the movable block 902 when moving.

[0029] Please refer to Figure 2 , one side of the plurality of U-shaped clamps 903 is fixedly connected with a force block 12, one side of the force block 12 is fixedly connected with a soft pad 13, the U-shaped clamp 903 is operated by contacting the force block 12 with the soft pad 13, which improves the convenience of operation.

[0030] Please refer to Figure 2The reinforcing mechanism 9 further comprises a safety slot 905 fixedly connected to one side of the connecting block 8, an elastic block 906 slidingly fitted in the inner wall of the safety slot 905, a safety block 907 fixedly connected to one side of the elastic block 906, and a second spring 908 fixedly connected to the lower side of the elastic block 906, with the lower end of the second spring 908 fixed to the safety slot 905. The safety block 907 abuts against one end of the U-shaped clamp 903, and the second spring 908 extrudes the elastic block 906, so that the safety block 907 abuts against one end of the U-shaped clamp 903, thereby achieving secondary reinforcement of the U-shaped clamp 903.

[0031] Please refer to Figure 2 The lower side of the inner wall of the U-shaped clamp 903 is provided with a reinforcing slot 14, and the reinforcing slot 14 cooperates with the safety block 907. When the locking screw 7 needs to be operated, the movable block 902 is controlled to move, so that the safety block 907 is inserted into the reinforcing slot 14, thereby temporarily fixing the U-shaped clamp 903 and preventing it from moving towards the locking screw 7.

[0032] The implementation principle of the ceramic shell for the coal bunker coal conveying chute of the power plant is as follows: in use, first, a plurality of ceramic blocks 2 are spliced, so that the corresponding positioning blocks 4 are inserted into the positioning slots 3, so that the plurality of ceramic blocks 2 are aligned, and the splicing positions of the plurality of ceramic blocks 2 are strictly controlled by a process, so that the splicing gap is controlled in a small range, and the gap is polished, filled and treated, so that it is as smooth as possible. The transition of the ceramic surface can be controlled in a very small range, and even can be ignored. When the flowing material damages the corresponding ceramic block 2 during use, the outermost ceramic block 2 can be disassembled by rotating the locking screw 7, and then the corresponding ceramic block 2 can be replaced by pulling, so that the local ceramic block 2 can be replaced, the resource waste is reduced, and the maintenance cost is saved.

[0033] When in use, the locking screw 7 is fixed by penetrating the connecting hole 6 and the nut 10 on the connecting block 8, and the locking screw 7 can be fastened into a shape. The movable block 902 is extruded by the first spring 904, the U-shaped clamp 903 is clamped on the outer side of the locking screw 7, the safety block 907 is blocked on one side of the U-shaped clamp 903 by the second spring 908 extruding the elastic block 906, so that the U-shaped clamp 903 can further reinforce the head of the locking screw 7, avoid loosening due to vibration, improve stability, and reduce the probability of damage caused by bolt loosening.

[0034] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A ceramic shell for a coal conveying chute in a power plant coal bunker, comprising a blunt body (1), characterized in that: The upper side of the blunt body (1) is provided with multiple ceramic blocks (2), and each of the multiple ceramic blocks (2) has a positioning groove (3) on one side. The other side of the multiple ceramic blocks (2) is fixedly connected with a positioning block (4), and the positioning block (4) and the positioning groove (3) are interlocked. Multiple locking blocks (5) are fixedly connected to the upper side of the blunt body (1). A connecting hole (6) is opened on one side of the multiple locking blocks (5). A locking screw (7) is fixedly connected to the inner wall of the connecting hole (6). A connecting block (8) is fixedly connected to the upper side of two of the multiple ceramic blocks (2). The connecting block (8) and the locking screw (7) cooperate with each other. A reinforcing mechanism (9) that cooperates with the locking screw (7) is provided on one side of the multiple connecting blocks (8).

2. The ceramic shell for a coal conveying chute in a power plant coal bunker according to claim 1, characterized in that: The reinforcement mechanism (9) includes a movable groove (901) opened on one side of the connecting block (8), a movable block (902) fixedly connected to the inner wall of the movable groove (901), a U-shaped clip (903) fixedly connected to one side of the movable block (902) and cooperating with the end of the locking screw (7), and a first spring (904) fixedly connected between the movable block (902) and the movable groove (901).

3. The ceramic shell for a coal conveying chute in a power plant coal bunker according to claim 2, characterized in that: The reinforcement mechanism (9) further includes a safety groove (905) fixedly connected to one side of the connecting block (8), a spring block (906) slidably fitted to the inner wall of the safety groove (905), a safety block (907) fixedly connected to one side of the spring block (906), and a second spring (908) fixedly connected to the lower side of the spring block (906). The lower end of the second spring (908) is fixed to the safety groove (905), and the safety block (907) abuts against the U-shaped clip (903).

4. The ceramic shell for a coal conveying chute in a power plant coal bunker according to claim 1, characterized in that: Nuts (10) are fixedly connected to the other side of each of the multiple connecting blocks (8), and the nuts (10) and locking screws (7) are threaded together.

5. A ceramic shell for a coal conveying chute in a power plant coal bunker according to claim 2, characterized in that: The inner wall of the movable groove (901) is fixedly connected to a guide rod (11), and the guide rod (11) and the movable block (902) slide together.

6. The ceramic shell for a coal conveying chute in a power plant coal bunker according to claim 2, characterized in that: Each of the multiple U-shaped clips (903) has a force-generating block (12) fixedly connected to one side, and a soft pad (13) is fixedly connected to one side of the force-generating block (12).

7. A ceramic outer shell for a coal conveying chute in a power plant coal bunker according to claim 2, characterized in that: The lower side of the inner wall of the U-shaped card (903) is provided with a reinforcing groove (14), and the reinforcing groove (14) and the safety block (907) cooperate with each other.

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