Thermal power plant solid waste treatment device

Abstract

The invention relates to the field of thermal power plants, and discloses a thermal power plant solid waste treatment device which comprises a conveyor used for conveying coal, a dust collection box arranged at the upper end of the conveyor, a conveying pipe arranged at the upper end of the dust collection box and connected with an external negative pressure element, an air inlet pipe, a dust collection part and an air outlet pipe. The dust collector is arranged in the dust collecting box and located above the conveyor; the supporting piece is arranged in the dust collecting box and is connected with the dust collecting piece; the spring piece is arranged on the inner wall of the dust collection box and located below the air inlet pipe; the control element can automatically trigger the cleaning mechanism to conduct cleaning, the automation degree of the device is improved, the dust collection part is beaten through a spring piece under blowing of a negative pressure element, blocking of the dust collection part is effectively prevented, the dust collection part is prevented from being damaged, and the dust collection part is prevented from being damaged. And continuous and stable operation of the device is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power plants, and specifically relates to a solid waste treatment device for thermal power plants. Background Art

[0002] During the operation of a thermal power plant, coal is the main fuel source. However, a large amount of dust is generated during the feeding or transfer of coal, which will pollute the environment and may also damage the equipment, affecting the normal operation of the thermal power plant.

[0003] Existing equipment has the following disadvantages: Traditional solid waste treatment devices for thermal power plants often use simple dust collection methods, such as using cloth bags or filters to collect dust, but these methods have problems such as easy blockage and difficult cleaning. In addition, when traditional dust collection equipment cleans dust, it usually requires manual operation or shutdown, which not only increases the labor intensity but also reduces the production efficiency.

[0004] Therefore, the present application now proposes a solid waste treatment device for thermal power plants to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a solid waste treatment device for thermal power plants to solve the problems of using cloth bags or filters to collect dust, but these methods have problems such as easy blockage and difficult cleaning. In addition, when traditional dust collection equipment cleans dust, it usually requires manual operation or shutdown, which not only increases the labor intensity but also reduces the production efficiency.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A solid waste treatment device for thermal power plants, including a conveyor for conveying coal, a dust collection box arranged at the upper end of the conveyor, a conveying pipe arranged at the upper end of the dust collection box and connected to an external negative pressure element, and an air inlet pipe arranged at the upper end of the dust collection box and connected to an external negative pressure element. It further includes:

[0007] A dust collection member, arranged inside the dust collection box and above the conveyor, for collecting dust in the coal;

[0008] A support member, arranged inside the dust collection box and connected to the dust collection member, for supporting the dust collection member;

[0009] A spring piece, arranged on the inner wall of the dust collection box and below the air inlet pipe, for hitting the dust collection member under the blowing of the negative pressure element;

[0010] A cleaning mechanism, arranged at the position of the conveyor below the dust collection member, for cleaning the collected dust.

[0011] Among them, a partition is provided in the middle of the lower end of the dust collection box. One side of the partition is a first treatment chamber, and the other side of the partition is a second treatment chamber;

[0012] The cleaning mechanism includes a first cleaning member disposed inside the first treatment chamber and a second cleaning member disposed inside the second treatment chamber. The first cleaning member and the second cleaning member have the same structure but different installation positions.

[0013] Among them, the first cleaning member and the second cleaning member are symmetrically arranged inside the dust collection box.

[0014] Among them, the first cleaning member includes a fixing plate disposed on the inner wall of the dust collection box, a movable plate disposed on the side of the fixing plate away from the inner wall of the dust collection box, a power member disposed at the lower end of the fixing plate, and a scraping member disposed at the upper end of the fixing plate and connected to the movable plate for cleaning the dust on the fixing plate. A hinge is provided between the fixing plate and the movable plate.

[0015] Among them, the scraping member includes a support rod fixed on the inner wall of the dust collection box, a cleaning plate sleeved on the support rod, a limiting plate disposed on the side of the support rod away from the inner wall of the dust collection box, and a traction rope disposed between the movable plate and the cleaning plate. The traction rope passes through the limiting plate, and a through hole for the movement of the traction rope is provided on the limiting plate. A second elastic member is sleeved on the part of the support rod between the limiting plate and the cleaning plate, and a placement groove for placing the second elastic member is provided on the cleaning plate.

[0016] Among them, a vertical plate is fixed at the lower end of the fixing plate, an installation block is provided on the vertical plate, a connection block is provided at the lower end of the movable plate, and the power member is disposed between the installation block and the connection block.

[0017] Among them, the fixing plate and the movable plate are inclined downward toward the side away from the inner wall of the dust collection box.

[0018] Among them, the dust collection member includes a mounting frame disposed inside the dust collection box and symmetrically arranged with respect to the partition, and dust collection bags spaced apart on the mounting frame. The dust collection bags are located above the movable plate.

[0019] Among them, the support member includes a mounting rod fixed on the inner top wall of the dust collection box and a bottom plate disposed at the lower end of the mounting rod. The mounting frame is sleeved on the mounting rod, and a first elastic member is sleeved on the part of the mounting rod between the bottom plate and the mounting frame.

[0020] Among them, control units are provided at the positions above and below the mounting frame of the dust collection box, and the control units are electrically connected to the power member through PLC control elements;

[0021] The control unit includes a first switch member disposed above the first cleaning member, a second switch member disposed above the second cleaning member, and a third switch member disposed on the partition board;

[0022] The structures of the first switch member and the second switch member are the same;

[0023] The first switch member includes a first button disposed above the mounting bracket and a second button disposed below the mounting bracket. Both the first button and the second button are electrically connected to the power member through a PLC control element.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. In the present invention, a dust collection member is provided above the conveyor to collect dust in coal, effectively avoiding the diffusion and pollution of dust, improving the dust collection efficiency. The device is internally provided with a cleaning mechanism, which can automatically clean after the dust collection member collects a certain amount of dust without manual intervention, greatly improving the production efficiency and reducing the labor intensity. The device is internally provided with control elements, which are electrically connected to the power equipment through PLC control elements, realizing the intelligent control of the cleaning mechanism. When the dust on the dust collection member reaches a certain amount, the control element will automatically trigger the cleaning mechanism to clean, improving the automation degree of the device. The dust collection member is struck by the spring piece under the blowing of the negative pressure element, effectively preventing the blockage of the dust collection member and ensuring the continuous and stable operation of the device.

[0026] 2. In the present invention, the partition board divides the dust collection box into a first treatment chamber and a second treatment chamber. This partition design enables dust to be collected and treated in two independent chambers. The partition treatment can prevent excessive dust accumulation in the dust collection box, which may increase the cleaning difficulty, and at the same time helps to improve the dust collection and cleaning efficiency. The first cleaning member and the second cleaning member are respectively disposed in the first treatment chamber and the second treatment chamber to clean the dust collection members in their respective chambers. This dual cleaning design ensures that dust can be completely removed, avoiding dust residue in the dust collection box, thereby maintaining the cleanliness and efficient operation of the dust collection box. When the first cleaning member in the first treatment chamber collects dust, the second cleaning member seals the second treatment chamber. When the dust collected by the dust collection member in the first treatment chamber reaches the set value, the first cleaning member seals the first treatment chamber, and the dust on the dust collection member is cleaned by knocking with the spring piece. At this time, the second cleaning member opens the second treatment chamber, and then the negative pressure element sucks the dust into the dust collection member in the second treatment chamber through the conveying pipe. By providing two independent cleaning members, even when one of the cleaning members needs to clean dust, the other can still continue to work, ensuring the continuity and reliability of the entire solid waste treatment device.

[0027] 3. In the present invention, a water spray pipe is installed around the dust collection bag. Each time dust removal work is carried out, the water source connected to the water spray pipe is opened to spray water on the dust collection bag, so that the dust collection bag remains in a wet state. Or each time dust removal work is carried out, the dust collection bag is put into water to be soaked, so that the collected large-particle coal ash is mixed with water to form coal slime. Then, under the knocking of the spring piece, the coal slime is knocked off from the dust collection bag and then falls above the movable plate and the fixed plate below. The dust collection bag is located above the movable plate, and can effectively collect the dust slipping from the movable plate. Since the capacity of the dust collection bag is relatively large, it can hold more dust, thereby improving the overall dust collection efficiency of the dust collection box. The mounting brackets are symmetrically arranged with respect to the partition plate, so that the dust collection bags are evenly distributed inside the dust collection box. This design not only improves the space utilization rate inside the dust collection box, but also helps to maintain the stability of the air flow during the dust collection process, and avoids the dust flying randomly inside the dust collection box, affecting the dust collection effect.

[0028] 4. When the movable plate rotates downward in the present invention, it will pull the traction rope downward, and then the traction rope pulls the cleaning plate to move towards the side close to the limiting plate, so that the cleaning plate can push the dust accumulated on the upper end of the fixed plate onto the conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main structure in an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the front view structure in an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the sectional view structure in an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure in the first treatment chamber in an embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure in the second treatment chamber in an embodiment of the present invention;

[0034] Figure 6 It is a schematic diagram of the structure of the first cleaning member in an embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the second cleaning member in an embodiment of the present invention;

[0036] Figure 8 It is a schematic diagram of the structure of the scraping member in an embodiment of the present invention;

[0037] Figure 9 It is a schematic diagram of the structure in which the scraping member cleans the dust on the fixed plate in an embodiment of the present invention;

[0038] Figure 10Schematic diagram of the first cleaning member sealing the first processing chamber in an embodiment of the present invention;

[0039] Figure 11 Schematic diagram of the connection between the spring piece and the air inlet pipe in an embodiment of the present invention;

[0040] Figure 12 Schematic diagram of the third switch member in an embodiment of the present invention;

[0041] Figure 13 Schematic diagram of the limiting block in an embodiment of the present invention;

[0042] Figure 14 Schematic diagram of the installation position of the sixth button in an embodiment of the present invention;

[0043] Figure 15 Schematic diagram of the installation position of the fifth button in an embodiment of the present invention;

[0044] Figure 16 is Figure 3 Schematic diagram of the enlarged part A in

[0045] In the figure: 1, conveyor; 2, dust collection box; 201, partition; 20101, installation groove; 2001, first processing chamber; 2002, second processing chamber; 21, dust collection member; 211, installation frame; 212, dust collection bag; 22, support member; 221, installation rod; 222, bottom plate; 223, first elastic member; 23, control unit; 231, first switch member; 2311, first button; 2312, second button; 232, second switch member; 2321, third button; 2322, fourth button; 233, third switch member; 2331, first rack; 2332, connecting plate; 2333, fifth button; 2334, gear; 2335, installation shaft; 2336, second rack; 233601, limiting groove; 2337, limiting block; 2338, moving plate; 2339, sixth button; 24, spring piece; 3, conveying pipe; 4, air inlet pipe; 5, cleaning mechanism; 51, first cleaning member; 511, fixing plate; 5111, vertical plate; 51111, installation block; 512, movable plate; 5121, connecting block; 513, power member; 514, support rod; 515, cleaning plate; 51501, placing groove; 51502, through hole; 516, limiting plate; 517, traction rope; 518, second elastic member; 519, hinge; 52, second cleaning member. Detailed implementation manners

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer to Figures 1 - 16 , the present invention provides a technical solution: a solid waste treatment device for a thermal power plant, including a conveyor 1 for conveying coal, a dust collection box 2 arranged at the upper end of the conveyor 1, a conveying pipe 3 arranged at the upper end of the dust collection box 2 and connected to an external negative pressure element, and an air inlet pipe 4 arranged at the upper end of the dust collection box 2 and connected to an external negative pressure element. It further includes:

[0048] A dust collection member 21, which is arranged at intervals inside the dust collection box 2 and above the conveyor 1, and is used for collecting dust in the coal;

[0049] A support member 22, which is arranged inside the dust collection box 2 and connected to the dust collection member 21, and is used for supporting the dust collection member 21;

[0050] A spring piece 24, which is arranged on the inner wall of the dust collection box 2 and below the air inlet pipe 4, and is used for hitting the dust collection member 21 under the blowing of the negative pressure element;

[0051] A cleaning mechanism 5, which is arranged at the position of the conveyor 1 below the dust collection member 21, and is used for cleaning the collected dust.

[0052] It should be noted that during operation, when the conveyor 1 conveys coal, the negative pressure element connected to the outside of the conveying pipe 3 is opened, so that an upward negative pressure element is formed inside the dust collection box 2, and the dust in the coal is sucked into the inside of the dust collection box 2. Then, the dust adheres to the dust collection member 21. When the dust on a dust collection member 21 is collected to a specified amount, the dust collection member 21 will move up and down on the support member 22. When the dust collection member 21 moves down to the lowest point, the cleaning mechanism 5 below the dust collection member 21 seals the lower part of this dust collection member 21, and at this time, the cleaning mechanism 5 below the other dust collection member 21 is opened, and the dust in the coal transported on the conveyor 1 is collected by the other dust collection member 21. Then, the control element opens the negative pressure element connected to the outside of the air inlet pipe 4, and then blows air into the inside of the dust collection box 2. The air pressure will cause the spring piece 24 to bounce up and down, and the spring piece 24 knocks on the dust collection member 21 to knock the dust on the dust collection member 21 onto the cleaning mechanism 5. When the dust in the other dust collection member 21 is collected to the specified value, the control element opens the cleaning mechanism 5, and then during the opening process, the dust accumulated on the cleaning mechanism 5 is pushed onto the conveyor 1 for transportation. When the dust falls onto the conveyor 1, there will be a small amount of dust flying, and then it will be collected by another group of dust collection members 21. By setting the dust collection members 21 above the conveyor 1 to collect the dust in the coal, the diffusion and pollution of dust are effectively avoided, the dust collection efficiency is improved, the device is internally provided with a cleaning mechanism 5, which can automatically clean after the dust collection member 21 collects a certain amount of dust without manual intervention, greatly improving the production efficiency and reducing the labor intensity. The device is internally provided with a control element, which is electrically connected to the power equipment through a plc control element, realizing the intelligent control of the cleaning mechanism 5. When the dust on the dust collection member 21 reaches a certain amount, the control element will automatically trigger the cleaning mechanism 5 to clean, improving the automation degree of the device. By hitting the dust collection member 21 by the spring piece 24 under the blowing of the negative pressure element, the blockage of the dust collection member 21 is effectively prevented, ensuring the continuous and stable operation of the device.

[0053] In one embodiment, a partition 201 is provided in the middle of the lower end of the dust collection box 2. One side of the partition 201 is a first treatment chamber 2001, and the other side of the partition 201 is a second treatment chamber 2002;

[0054] The cleaning mechanism 5 includes a first cleaning member 51 provided inside the first treatment chamber 2001 and a second cleaning member 52 provided inside the second treatment chamber 2002. The structures of the first cleaning member 51 and the second cleaning member 52 are the same, but their installation positions are different.

[0055] Designed in this way, refer to Figures 2 - 5, the partition plate 201 divides the dust collection box 2 into a first processing chamber 2001 and a second processing chamber 2002. This partition design enables dust to be collected and processed in two independent chambers. The partitioned processing can prevent excessive dust accumulation in the dust collection box 2, which may increase the cleaning difficulty. Meanwhile, it also helps improve the efficiency of dust collection and cleaning. The first cleaning member 51 and the second cleaning member 52 are respectively arranged in the first processing chamber 2001 and the second processing chamber 2002 to clean the dust collection members in their respective chambers. This dual cleaning design ensures that dust can be thoroughly removed, avoiding dust residue in the dust collection box 2, thereby maintaining the cleanliness and efficient operation of the dust collection box 2. When the first cleaning member 51 inside the first processing chamber 2001 collects dust, the second cleaning member 52 seals the second processing chamber 2002. When the dust collected by the dust collection member 21 inside the first processing chamber 2001 reaches the set value, the first cleaning member 51 seals the first processing chamber 2001, and the dust on the dust collection member 21 is cleaned by knocking through the spring piece 24. At this time, the second cleaning member 52 opens the second processing chamber 2002, and then the negative pressure element sucks the dust into the dust collection member 21 inside the second processing chamber 2002 through the conveying pipe 3. By setting two independent cleaning members, even when one of the cleaning members needs to clean dust, the other can still continue to work, ensuring the continuity and reliability of the entire solid waste treatment device.

[0056] In one embodiment, both the first cleaning member 51 and the second cleaning member 52 are symmetrically arranged inside the dust collection box 2.

[0057] With such a design, referring to Figure 6 、and Figure 7 , the symmetrically arranged first cleaning member 51 and second cleaning member 52 can ensure that all areas inside the dust collection box 2 can be evenly cleaned. This uniformity helps prevent dust accumulation in certain areas of the dust collection box 2, thereby improving the overall cleaning efficiency.

[0058] In one embodiment, the first cleaning member 51 includes a fixed plate 511 arranged on the inner wall of the dust collection box 2, a movable plate 512 arranged on the side of the fixed plate 511 away from the inner wall of the dust collection box 2, a power member 513 arranged at the lower end of the fixed plate 511, and a scraping member arranged at the upper end of the fixed plate 511 and connected to the movable plate 512 for cleaning the dust on the fixed plate 511. A hinge 519 is arranged between the fixed plate 511 and the movable plate 512. The power member 513 includes but is not limited to hydraulic cylinders, linear guides, electric push rods, and air cylinders.

[0059] With such a design, referring to Figure 6, by providing a hinge 519 between the fixed plate 511 and the movable plate 512, the movable plate 512 can rotate or turn relative to the fixed plate 511, thus enhancing the flexibility of the cleaning member. When it is necessary to clean the dust on the dust collecting member 21, the power member 513 drives the movable plate 512 to rotate, so that the fixed plate 511 and the movable plate 512 seal the interior of the first treatment chamber 2001, allowing the knocked-down dust to accumulate on the fixed plate 511 and the movable plate 512. When the power member 513 drives the movable plate 512 to turn downward, the scraping member can closely fit the surface of the fixed plate 511, effectively removing the attached dust and debris, keeping the fixed plate 511 clean, and thus ensuring the normal operation of the entire dust collection system.

[0060] In one embodiment, the scraping member includes a support rod 514 fixed to the inner wall of the dust collection box 2, a cleaning plate 515 sleeved on the support rod 514, a limiting plate 516 provided on the side of the support rod 514 away from the inner wall of the dust collection box 2, and a traction rope 517 provided between the movable plate 512 and the cleaning plate 515. The traction rope 517 passes through the limiting plate 516, and a through hole 51502 for the movement of the traction rope 517 is formed on the limiting plate 516. A second elastic member 518 is sleeved on the part of the support rod 514 located between the limiting plate 516 and the cleaning plate 515. A placement groove 51501 for placing the second elastic member 518 is formed on the cleaning plate 515. The second elastic member 518 is made of a spring or an elastic pad with damping.

[0061] With such a design, refer to Figures 6 - 9, the support rod 514 is fixed on the inner wall of the dust collection box 2, providing stable support for the cleaning plate 515, ensuring the stability and accuracy during the cleaning process. The cleaning plate 515 is sleeved on the support rod 514 and can move along the support rod 514. This design enables the cleaning plate 515 to flexibly adapt to the cleaning requirements at different positions, improving the cleaning coverage and efficiency. The setting of the limit plate 516 effectively restricts the movement range of the cleaning plate 515, preventing it from detaching from the support rod 514 or moving to an undesired position, ensuring the controllability and safety of the cleaning process. The perforation 51502 provides a movement channel for the traction rope 517, enabling the traction rope 517 to smoothly pass through the limit plate 516, connecting the movable plate 512 and the cleaning plate 515, and realizing the linkage between the two. The second elastic member 518 is sleeved on the support rod 514 and is located between the limit plate 516 and the cleaning plate 515, providing an elastic reset force for the cleaning plate 515. When the cleaning plate 515 moves under the action of an external force, the second elastic member 518 can absorb part of the energy and return the cleaning plate 515 to its original position after the external force disappears, improving the stability and durability of the cleaning plate 515. The design of the placement groove 51501 provides a suitable installation position for the second elastic member 518, ensuring its stability and reliability in actual use. When the movable plate 512 flips downward, it will pull the traction rope 517 downward, and then the traction rope 517 pulls the cleaning plate 515 to move toward the side close to the limit plate 516, enabling the cleaning plate 515 to push the dust accumulated on the upper end of the fixed plate 511 onto the conveyor 1.

[0062] In one embodiment, a vertical plate 5111 is fixed to the lower end of the fixed plate 511. An installation block 51111 is provided on the vertical plate 5111, and a connection block 5121 is provided at the lower end of the movable plate 512. The power member 513 is disposed between the installation block 51111 and the connection block 5121.

[0063] With this design, referring to Figure 8 、and Figure 9 , the fixation of the vertical plate 5111 provides solid support for the installation block 51111, ensuring the stability and reliability of the power member 513 during installation. The member 513 can stably transmit power to the movable plate 512, improving the stability of the entire cleaning structure. The design of the installation block 51111 and the connection block 5121 makes the installation and disassembly of the power member 513 more convenient. When maintenance or replacement of the power member is required, the operation can be completed quickly, reducing the maintenance cost and time.

[0064] In one embodiment, the fixed plate 511 and the movable plate 512 are inclined downward toward the side away from the inner wall of the dust collection box 2.

[0065] With this design, referring to Figure 5 、and Figure 7, when the fixed plate 511 and the movable plate 512 are inclined downward, a V-shaped inclined collection surface is formed between them and the inner wall of the dust collection box 2. This design makes it easier for dust to slide down under the action of gravity and accumulate at the bottom of the movable plate 512, thereby improving the dust collection efficiency. The inclined collection surface helps to reduce the residue of dust on the fixed plate 511 and the movable plate 512. Since dust is more likely to slide down under the action of gravity, this design can reduce the possibility of dust adhering to the plate members and reduce the difficulty and frequency of cleaning.

[0066] In one embodiment, the dust collection member 21 includes a mounting frame 211 disposed inside the dust collection box 2 and symmetrically arranged with respect to the partition plate 201, and dust collection bags 212 spaced apart on the mounting frame 211. The dust collection bags 212 are located above the movable plate 512.

[0067] With this design, refer to Figures 3 - 7 , install a water spray pipe around the dust collection bag 212. When performing dust removal work each time, open the water source connected to the water spray pipe and spray water on the dust collection bag 212 to keep the dust collection bag 212 in a wet state. Or each time when performing dust removal work, immerse the dust collection bag 212 in water so that the collected large-particle coal ash is mixed with water to form coal sludge. Then, under the knocking of the spring piece 24, the coal sludge is knocked off from the dust collection bag 212 and then falls above the lower movable plate 512 and the fixed plate 511. The dust collection bag 212 is located above the movable plate 512, which can effectively collect the dust sliding down from the movable plate 512. Since the capacity of the dust collection bag 212 is relatively large, it can hold more dust, thereby improving the overall dust collection efficiency of the dust collection box 2. The mounting frame 211 is symmetrically arranged with respect to the partition plate 201, so that the dust collection bags 212 are evenly distributed inside the dust collection box 2. This design not only improves the space utilization rate inside the dust collection box 2, but also helps to maintain the stability of the air flow during the dust collection process and avoid the dust flying randomly inside the dust collection box 2, affecting the dust collection effect.

[0068] In one embodiment, the support member 22 includes a mounting rod 221 fixed on the inner top wall of the dust collection box 2 and a bottom plate 222 disposed at the lower end of the mounting rod 221. The mounting frame 211 is sleeved on the mounting rod 221, and a first elastic member 223 is sleeved on the part of the mounting rod 221 between the bottom plate 222 and the mounting frame 211. The first elastic member 223 is made of a spring or an elastic pad with damping.

[0069] With this design, refer to Figures 4 - 6 、and Figure 11, the mounting rod 221 is fixed on the inner top wall of the dust collection box 2, providing stable support for the mounting frame 211 and the dust collection bag 212. This design ensures the stability of the dust collection bag 212 during the dust collection process, avoiding a decrease in dust collection efficiency caused by shaking or displacement. When the dust on the dust collection bag 212 continuously increases, the weight of the dust collection bag 212 increases, and then the mounting frame 211 will move downward on the mounting rod 221, squeezing the first elastic member 223. The first elastic member 223 provides an elastic restoring force for the mounting frame 211. When the mounting frame 211 moves under the action of an external force, the first elastic member 223 can absorb part of the energy and drive the mounting frame 211 to drive the dust collection bag 21 to move upward and return to the original position after the external force disappears.

[0070] In an embodiment, control units 23 are provided at positions on both the upper and lower sides of the mounting frame 211 in the dust collection box 2. The control units 23 are electrically connected to the power member 513 through PLC control elements;

[0071] The control unit 23 includes a first switch member 231 provided above the first cleaning member 51, a second switch member 232 provided above the second cleaning member 52, and a third switch member 233 provided on the partition plate 201;

[0072] The structures of the first switch member 231 and the second switch member 232 are the same;

[0073] The first switch member 231 includes a first button 2311 provided above the mounting frame 211 inside the first processing chamber 2001 and a second button 2312 provided below the mounting frame 211. Both the first button 2311 and the second button 2312 are electrically connected to the power member 513 through PLC control elements;

[0074] The second switch member 232 includes a third button 2321 provided above the mounting frame 211 inside the second processing chamber 2002 and a fourth button 2322 provided below the mounting frame 211.

[0075] With this design, refer to Figures 6 - 7 、and Figure 12, when the dust collected by the dust collection bag 212 inside the first processing chamber 2001 reaches the set value, the mounting bracket 211 moves downward to press the second button 2312, and then the second button 2312 transmits a signal to the plc control element. The plc control element turns on the power member 513, then controls the movable plate 512 to flip upward, and then seals the first processing chamber 2001. At this time, the dust on the dust removal bag 212 can be cleaned. And during the downward movement of the mounting bracket 211, the third switch member 233 will be controlled to start, and then the power member 513 inside the second processing chamber 2002 will be turned on through the plc control element, and then the movable plate 512 will be controlled to flip downward, so that the lower part of the second processing chamber 2002 is opened to absorb the dust in the coal on the conveyor 1.

[0076] In a specific embodiment, the third switch member 233 includes a mounting shaft 2335 provided on the partition plate 201, a first rack 2331 provided at the lower end of a mounting bracket 211 and located on one side of the partition plate 201, a connecting plate 2332 provided at the lower end of the first rack 2331, a fifth button 2333 provided on the partition plate 201 and located above the connecting plate 2332, a gear 2334 sleeved on the mounting shaft 2335, a second rack 2336 provided on the other side of the partition plate 201, a moving plate 2338 provided at the lower end of the second rack 2336, and a sixth button 2339 provided on the partition plate 201 and located above the moving plate 2338. A limiting block 2337 for supporting the second rack 2336 is provided on the partition plate 201. A limiting groove 233601 for the limiting block 2337 to move is provided on the second rack 2336. An installation groove 20101 for the gear 2334 to rotate is provided on the partition plate 201.

[0077] With such a design, refer to Figures 12 - 16, when the mounting bracket 211 inside the first processing chamber 2001 moves downward, it will drive the first rack 2331 to move downward. The first rack 2331 is meshed with the gear 2334 and then drives the gear 2334 to rotate on the mounting shaft 2335. Since the gear 2334 is meshed with the second rack 2336, the second rack 2336 can be driven to move upward, so that the moving plate 2338 moves upward to press the sixth button 2339. At this time, the sixth button 2339 transmits a signal to the plc control element, so that the power component 513 inside the second processing chamber 2002 drives the movable plate 512 to flip, so that the second processing chamber 2002 is opened. The power component 513 inside the first processing chamber 2001 drives the movable plate 512 to flip to seal the first processing chamber 2001. After the dust on the dust collection bag 212 is cleaned up, the first elastic member 223 will drive the mounting bracket 211 to move upward, and then press the first button 2311. The negative pressure pipe connected to the upper conveying pipe 3 of the first processing chamber 2001 is closed. When the dust collection bag 212 inside the second processing chamber 2002 collects a specified amount of dust, it will move downward, thereby causing the second rack 2336 to move downward, and then driving the first rack 2331 to move upward through the gear 2334 to press the fifth button 2333. The fifth button 2333 controls the movable plate 512 inside the first processing chamber 2001 to flip downward through the plc control element, and then the dust on the fixed plate 511 and the movable plate 512 falls onto the conveyor 1. And when the cleaning plate 515 finishes cleaning the dust on the fixed plate 511, the negative pressure element connected to the upper conveying pipe 3 of the first processing chamber 2001 is turned on to collect the dust in the conveyor 1. When the dust falls, a small amount of dust is also sucked into the dust collection bag 212. Then, the second cleaning member 52 inside the second processing chamber 2002 cleans the dust collected in the dust collection bag 212. After the cleaning is completed, the second processing chamber 2002 is opened to discharge the dust, and then the first processing chamber 2001 is sealed. In this way, the dust in the coal is collected alternately. Even when one of the cleaning members needs to clean the dust, the other can still continue to work, ensuring the continuity and reliability of the entire solid waste treatment device. And the dust after centralized collection falls into the coal in the conveyor 1 and continues to be transported, which can reduce the subsequent separate cleaning work of the dust.

[0078] In addition, if there are descriptions involving "first", "second", etc. in the embodiments, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance to the specification or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature.

Claims

1. A solid waste treatment device for a thermal power plant, comprising a conveyor (1) for conveying coal, a dust collection box (2) arranged at the upper end of the conveyor (1), a conveying pipe (3) arranged at the upper end of the dust collection box (2) and connected to an external negative pressure element, and an air inlet pipe (4) arranged at the upper end of the dust collection box (2) and connected to an external negative pressure element, characterized in that, Further included are: A dust collecting member (21), which is arranged inside the dust collecting box (2) and above the conveyor (1) for collecting dust in coal; A support member (22), which is arranged inside the dust collecting box (2) and connected to the dust collecting member (21) for supporting the dust collecting member (21); A spring piece (24), which is arranged on the inner wall of the dust collecting box (2) and below the air inlet pipe (4) for hitting the dust collecting member (21) under the blowing of a negative pressure element; A cleaning mechanism (5), which is arranged at the position of the conveyor (1) below the dust collecting member (21) for cleaning the collected dust.

2. The solid waste treatment device for thermal power plants according to claim 1, characterized in that: A partition plate (201) is arranged in the middle of the lower end of the dust collecting box (2). One side of the partition plate (201) is a first treatment chamber (2001), and the other side of the partition plate (201) is a second treatment chamber (2002); The cleaning mechanism (5) includes a first cleaning member (51) arranged inside the first treatment chamber (2001) and a second cleaning member (52) arranged inside the second treatment chamber (2002). The first cleaning member (51) and the second cleaning member (52) have the same structure but different installation positions.

3. The solid waste treatment device for thermal power plants according to claim 2, characterized in that: Both the first cleaning member (51) and the second cleaning member (52) are symmetrically arranged inside the dust collecting box (2).

4. A solid waste treatment device for a thermal power plant according to claim 2, characterized in that: The first cleaning member (51) includes a fixing plate (511) arranged on the inner wall of the dust collecting box (2), a movable plate (512) arranged on the side of the fixing plate (511) away from the inner wall of the dust collecting box (2), a power member (513) arranged at the lower end of the fixing plate (511), and a scraping member arranged at the upper end of the fixing plate (511) and connected to the movable plate (512) for cleaning the dust on the fixing plate (511). A hinge (519) is arranged between the fixing plate (511) and the movable plate (512).

5. The solid waste treatment device for a thermal power plant according to claim 4, wherein: The scraping member includes a support rod (514) fixed on the inner wall of the dust collecting box (2), a cleaning plate (515) sleeved on the support rod (514), a limiting plate (516) arranged on the side of the support rod (514) away from the inner wall of the dust collecting box (2), and a traction rope (517) arranged between the movable plate (512) and the cleaning plate (515). The traction rope (517) passes through the limiting plate (516). A through hole (51502) for the movement of the traction rope (517) is formed on the limiting plate (516). A second elastic member (518) is sleeved on the part of the support rod (514) between the limiting plate (516) and the cleaning plate (515). A placement groove (51501) for placing the second elastic member (518) is formed on the cleaning plate (515).

6. The solid waste treatment device for thermal power plants according to claim 4, characterized in that: A vertical plate (5111) is fixed to the lower end of the fixed plate (511). An installation block (51111) is provided on the vertical plate (5111). A connection block (5121) is provided at the lower end of the movable plate (512). The power member (513) is disposed between the installation block (51111) and the connection block (5121).

7. A solid waste treatment device for a thermal power plant according to claim 4, characterized in that: The fixed plate (511) and the movable plate (512) are inclined downward toward the side away from the inner wall of the dust collection box (2).

8. The solid waste treatment device for thermal power plants according to claim 4, characterized in that: The dust collection member (21) includes an installation frame (211) disposed inside the dust collection box (2) and symmetrically arranged with respect to the partition plate (201), and dust collection bags (212) spaced apart on the installation frame (211). The dust collection bags (212) are located above the movable plate (512).

9. The solid waste treatment device for thermal power plants according to claim 8, characterized in that: The support member (22) includes an installation rod (221) fixed to the inner top wall of the dust collection box (2) and a bottom plate (222) disposed at the lower end of the installation rod (221). The installation frame (211) is sleeved on the installation rod (221). A first elastic member (223) is sleeved on the portion of the installation rod (221) between the bottom plate (222) and the installation frame (211).

10. A solid waste treatment device for a thermal power plant according to claim 9, characterized in that: Control units (23) are provided at positions above and below the installation frame (211) of the dust collection box (2). The control unit (23) is electrically connected to the power member (513) through a PLC control element; The control unit (23) includes a first switch member (231) disposed above the first cleaning member (51), a second switch member (232) disposed above the second cleaning member (52), and a third switch member (233) disposed on the partition plate (201); The first switch member (231) and the second switch member (232) have the same structure; The first switch member (231) includes a first button (2311) disposed above the installation frame (211) and a second button (2312) disposed below the installation frame (211). The first button (2311) and the second button (2312) are both electrically connected to the power member (513) through a PLC control element.

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