Coal-fired power plant boiler coal drop pipe anti-blocking dredging structure

Abstract

This utility model discloses an anti-clogging and unblocking structure for the coal chutes of a coal-fired power plant boiler, relating to the field of unblocking structures. It includes a coal chute, with a connecting pipe on its inner wall. The outer wall of the connecting pipe has evenly spaced through holes, which are inclined. Each through hole has an unblocking probe on its inner wall, and a pushing ring on the outer wall of the connecting pipe. This novel design, through the combination of a coal chute, connecting pipe, and unblocking probe, facilitates the unblocking of coal at the outlet, avoiding the cumbersome disassembly and unblocking process and improving work efficiency. Furthermore, the combination of rollers, unblocking probes, and connecting pipes allows for easy movement of the unblocking probes, preventing wear between the probes and the pushing ring and extending the lifespan of the device.

Description

Technical Field

[0001] This utility model belongs to the field of unblocking structure technology, specifically an anti-blocking and unblocking structure for the coal chutes of coal-fired power generation boilers. Background Technology

[0002] Coal chutes generally include components such as coal hoppers, downcomers, and guide troughs. They are a general term for coal transport pipelines in industries such as coal mining, ports, thermal power plants, coal storage yards, coal washing plants, and coal-fired industrial boilers. In the coal transport system of thermal power plants, coal chutes are the main transport connection components connecting various transfer stations, screening and crushing chambers, and the various levels of transport, storage, transfer, screening, and crushing equipment in the main plant. Existing coal chutes are prone to clogging by coal chunks and powder during use. This blockage prevents normal coal transport, severely impacting the normal operation of industrial production. Unblocking often requires pipe disassembly, which is cumbersome and reduces work efficiency. Therefore, we propose an anti-clogging and unblocking structure for coal chutes in coal-fired power boilers. Utility Model Content

[0003] In response to the above situation and to overcome the shortcomings of the existing technology, this utility model provides an anti-blocking and unblocking structure for the coal chute of a coal-fired power plant boiler. This effectively solves the problem that existing coal chutes are prone to blockage by coal chunks and coal dust during use. Coal blockage prevents normal transportation, seriously affecting the normal operation of industrial production. Unblocking often requires pipe disassembly, which is cumbersome and reduces work efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coal-fired power plant boiler coal chuting anti-blockage and unblocking structure, including a coal chuting pipe, a connecting pipe provided on the inner wall of the coal chuting pipe, through holes evenly distributed on the outer wall of the connecting pipe, the through holes being inclined, unblocking probes provided on the inner wall of each through hole, a pushing ring provided on the outer wall of the connecting pipe, a sliding groove evenly distributed on the top wall of the pushing ring, the unblocking probes being located in the inner cavity of the sliding groove, eccentric wheels provided on the left and right side walls of the connecting pipe, the eccentric wheels being located on the bottom wall of the pushing ring, a first gear provided on the opposite side walls of the two sets of eccentric wheels, a double-headed motor provided on the front side wall of the connecting pipe, and a second gear provided on both the left and right ends of the double-headed motor, the first gear meshing with the second gear.

[0005] Preferably, the inner wall of the chute is T-shaped, and the outer wall of the unblocking rod is uniformly provided with rollers, which are located in the inner cavity of the chute.

[0006] Preferably, rotating rings are provided on both the left and right sides of the bottom wall of the pushing ring, and the eccentric wheel is located on the inner wall of the rotating ring.

[0007] Preferably, the outer wall of the connecting pipe is uniformly provided with limiting strips, and the pushing ring is located on the outer wall of the limiting strips.

[0008] Preferably, the outer wall of the connecting pipe is provided with a buffer pad, which is disposed on the bottom wall of the inner cavity of the coal chute.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. The anti-blocking and unblocking structure of the coal chute of the coal-fired power generation boiler, through the combination of coal chute, connecting pipe and unblocking rod, can facilitate the unblocking of coal at the outlet, thereby avoiding the cumbersome disassembly and unblocking operation and improving work efficiency.

[0011] 2. The anti-blocking and unblocking structure of the coal chute of the coal-fired power plant boiler, through the combination of rollers, unblocking rods and connecting pipes, makes it easy to move the unblocking rods, avoids wear between the unblocking rods and the pushing rings, and helps to improve the service life of the device.

[0012] 3. The anti-blocking and unblocking structure of the coal chute of this coal-fired power plant, through the combination of a rotating ring, a pushing ring, and an eccentric wheel, makes it easy for the device to move the unblocking rod, avoiding wear between the unblocking rod and the pushing ring, and thus improving the service life of the device. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the anti-blocking and unblocking structure of the coal chute of a coal-fired power plant boiler according to this utility model;

[0016] Figure 2 This is a cross-sectional view of the connecting pipe of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of part A in the image;

[0018] In the diagram: 100, coal chute; 101, connecting pipe; 102, unblocking probe; 103, pushing ring; 104, eccentric wheel; 105, first gear; 106, double-headed motor; 107, second gear; 108, roller; 109, rotating ring; 110, limit bar; 111, buffer pad. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figure 1 , Figure 2 and Figure 3 This invention discloses a coal-fired power boiler coal chute anti-blocking and unblocking structure. The inner wall of the coal chute 100 is fitted with a connecting pipe 101, which supports the unblocking probe 102. The outer wall of the connecting pipe 101 has evenly spaced through holes, which guide and limit the movement of the unblocking probe 102. The through holes are inclined, allowing the unblocking probe 102 to loosen the coal and allow it to fall and clear blockages. The inner wall of each through hole is slidably connected to the unblocking probe 102, which facilitates the clearing of blocked coal. A push ring 103 is slidably connected to the outer wall of the connecting pipe 101, which facilitates the movement of the unblocking probe 102. The top wall of the push ring 103 has evenly spaced grooves. 02 is located in the inner cavity of the slide groove. The left and right side walls of the connecting pipe 101 are rotatably connected to eccentric wheels 104. The eccentric wheels 104 facilitate the movement of the push ring 103. The eccentric wheels 104 are located on the bottom wall of the push ring 103. The opposite side walls of the two sets of eccentric wheels 104 are fixedly connected to the first gear 105. The first gear 105 facilitates the rotation of the eccentric wheels 104. The front side wall of the connecting pipe 101 is fixedly connected to a double-headed motor 106. The double-headed motor 106 facilitates the rotation of the second gear 107. The left and right ends of the double-headed motor 106 are fixedly connected to the second gear 107. The second gear 107 facilitates the rotation of the first gear 105. The first gear 105 and the second gear 107 mesh with each other.

[0021] In this embodiment: the connecting pipe 101 is installed at the coal discharge outlet of the coal chute 100. When a blockage occurs, the double-headed motor 106 drives the second gear 107 to rotate, which in turn drives the first gear 105 to rotate. The first gear 105 then drives the eccentric wheel 104 to rotate, which in turn pushes the push ring 103 to move. The push ring 103 then drives the unblocking rod 102 to move. The unblocking rod 102 slides at an angle to clear the blocked coal. The eccentric wheel 104 also vibrates during rotation, and this vibration is transmitted to the connecting pipe 101, which helps to shake off the blocked coal. This makes it easier for the device to clear the blocked coal at the discharge outlet, thus avoiding the cumbersome disassembly and unblocking operation and improving work efficiency.

[0022] The inner wall of the chute is T-shaped, and the outer wall of the unblocking rod 102 is uniformly connected to the roller 108, which is located in the inner cavity of the chute.

[0023] In this embodiment, the roller 108 is provided to facilitate rolling within the inner cavity of the chute, and the chute facilitates limiting and guiding the movement of the roller 108. This makes it easier for the device to push the unblocking rod 102 to move, avoids wear between the unblocking rod 102 and the pushing ring 103, and helps to improve the service life of the device.

[0024] The push ring 103 has a rotating ring 109 fixedly connected to both sides of its bottom wall. The rotating ring 109 facilitates the movement of the push ring 103. The inner wall of the rotating ring 109 is equipped with a bearing, and the eccentric wheel 104 is located on the inner wall of the rotating ring 109.

[0025] In this embodiment, the rotating ring 109 is set to facilitate the movement of the pushing ring 103, while avoiding friction between the eccentric wheel 104 and the pushing ring 103, which can cause damage. This is beneficial to the stable operation of the device and facilitates the unblocking operation.

[0026] Limiting strips 110 are uniformly fixedly connected to the outer wall of the connecting pipe 101. The limiting strips 110 facilitate the limiting and guiding of the movement of the push ring 103, which is located on the outer wall of the limiting strips 110.

[0027] In this embodiment: by setting a limiting strip 110, the movement of the pushing ring 103 is limited and guided, so as to avoid the pushing ring 103 from deflecting, which is conducive to pushing the unblocking rod 102 to move, and to facilitate the unblocking of the coal blockage.

[0028] A buffer pad 111 is fixedly connected to the outer wall of the connecting pipe 101. The deformation of the buffer pad 111 facilitates the shaking of the connecting pipe 101 and makes it easier to clear blockages. The buffer pad 111 is fixedly connected to the bottom wall of the inner cavity of the coal chute 100.

[0029] In this embodiment: by setting a buffer pad 111, the vibration is buffered, reducing the transmission of vibration on the connecting pipe 101 to the coal drop pipe 100. The buffer pad 111 has a deformable shape, which facilitates the shaking of the connecting pipe 101 to clear the coal.

Claims

1. A structure for preventing blockage and clearing blockages in the coal chute of a coal-fired power plant boiler, comprising a coal chute (100), characterized in that: The inner wall of the coal chute (100) is provided with a connecting pipe (101). The outer wall of the connecting pipe (101) is uniformly provided with through holes, which are inclined. Each through hole has a clearing probe (102) on its inner wall. The outer wall of the connecting pipe (101) is provided with a pushing ring (103). The top wall of the pushing ring (103) is uniformly provided with a sliding groove. The clearing probe (102) is located within the inner cavity of the sliding groove. The left and right sides of the connecting pipe (101)... Eccentric wheels (104) are provided on the side walls. The eccentric wheels (104) are located on the bottom wall of the push ring (103). The opposite side walls of the two sets of eccentric wheels (104) are provided with first gears (105). The front side wall of the connecting pipe (101) is provided with a double-headed motor (106). The left and right ends of the double-headed motor (106) are provided with second gears (107). The first gears (105) mesh with the second gears (107).

2. The anti-blocking and unblocking structure for the coal chute of a coal-fired power plant boiler according to claim 1, characterized in that: The inner wall of the chute is T-shaped, and the outer wall of the unblocking rod (102) is uniformly provided with rollers (108), which are located in the inner cavity of the chute.

3. The anti-blocking and unblocking structure for the coal chute of a coal-fired power plant boiler according to claim 1, characterized in that: Rotating rings (109) are provided on both the left and right sides of the bottom wall of the push ring (103), and the eccentric wheel (104) is located on the inner wall of the rotating ring (109).

4. The anti-blocking and unblocking structure for the coal chute of a coal-fired power plant boiler according to claim 1, characterized in that: The outer wall of the connecting pipe (101) is uniformly provided with limiting strips (110), and the push ring (103) is located on the outer wall of the limiting strips (110).

5. The anti-blocking and unblocking structure for the coal chute of a coal-fired power plant according to claim 1, characterized in that: The outer wall of the connecting pipe (101) is provided with a buffer pad (111), which is located on the bottom wall of the inner cavity of the coal drop pipe (100).

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