Dustproof device
By using dustproof devices in the coal transportation system of thermal power plants and using inclined surface design and dust reduction system, the problem of dust pollution during coal transportation is solved, and environmental protection and health and safety effects are achieved.
Patent Information
- Application Number
- CN202422108579.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In coal transportation systems in thermal power plants, coal generates a large amount of dust when transported in a height direction, affecting the working environment and health. It is difficult for the existing technology to effectively reduce dust pollution.
The dust-proof device is adopted, including a first belt line assembly, a second belt line assembly, a transition plate and an elastic member, and the slope design is used to reduce the drop, and combine the dustproof cover, a dust reduction system and an air suction device to reduce the dust concentration by spraying water and suction.
It effectively reduces the production of dust during coal transfer, improves the working environment, protects the health of staff, and reduces environmental pollution.
Smart Images
Figure CN223117474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust prevention equipment, and particularly relates to a dust prevention device. Background Art
[0002] In the coal conveying system of a thermal power plant, a large amount of dust is generated during the loading, unloading, conveying, and transfer of coal, which not only affects the working environment, but may also pose a hazard to the health of the staff, and at the same time causes environmental pollution.
[0003] Especially when there is a height difference in the transfer position in the height direction, a common scenario is that coal is output from one belt line and drops onto another belt line, and the dropping of coal will stir up a large amount of dust. Summary of the Utility Model
[0004] The main object of the utility model is to propose a dust prevention device, aiming to reduce dust pollution in the case of coal transfer in the height direction.
[0005] To achieve the above object, the dust prevention device proposed by the utility model includes: a first belt line assembly, a second belt line assembly, a transition plate, and an elastic member; the first belt line assembly is used for inputting coal, extends in the left-right direction, and has an output end; the second belt line assembly is used for outputting coal, extends in the left-right direction, is located below the first belt line assembly, and is spaced apart in the up-down direction. The second belt line assembly has a first belt section that is misaligned with the first belt line assembly in the up-down direction; one end of the transition plate is rotatably installed at the output end of the first belt line assembly, and the other end extends towards the first belt section of the second belt line assembly; and one end of the elastic member is connected to the transition plate to drive the other end of the transition plate to move in a direction away from the second belt line assembly.
[0006] In one embodiment, the dust prevention device further includes a damping member, which is connected to the transition plate and is respectively disposed on both sides of the transition plate in the up-down direction with the elastic member.
[0007] In one embodiment, the dust prevention device further includes a dust-proof cover, which has a cavity, and the output end, the transition plate, and a part of the second belt line assembly are located in the cavity.
[0008] In one embodiment, the dust prevention device further includes a dust reduction system, and the dust reduction system includes:
[0009] A water supply device;
[0010] A spray pipe, which extends in the front-rear direction, is communicated with the water supply device, and is installed in the cavity.
[0011] In one embodiment, a plurality of spray holes are respectively arranged at intervals along the circumferential and axial directions of the nozzle, and the plurality of spray holes are arranged facing the upper side of the transition plate.
[0012] In one embodiment, the dust removal system further includes a suction device, which is installed in the cavity and arranged facing the upper side of the transition plate.
[0013] In one embodiment, the transition plate has a first position and a second position in the moving stroke and moves between the first position and the second position. The dust prevention device further includes:
[0014] A sensor arranged facing between the first position and the second position;
[0015] A controller electrically connected to the sensor, and the controller has a timing module.
[0016] In one embodiment, the first belt line assembly includes a driving motor, and the controller is electrically connected to the driving motor.
[0017] In one embodiment, the dust prevention device further includes a concentration detector, which is installed in the cavity. The controller is electrically connected to the concentration detector, and the controller is also electrically connected to the water supply device and the suction device respectively.
[0018] In one embodiment, stop portions are formed by upward extension on both sides of the transition plate in the front-back direction.
[0019] The technical solution of the present invention is to set a transition plate at the output end of the first belt line assembly. The transition plate extends towards the first belt section of the second belt line assembly. By using the inclined plane, the coal directly slides onto the second belt line assembly, or after sliding a certain distance, the drop height from the transition plate to the second belt line assembly is reduced and then the coal drops onto the second belt line assembly, thereby reducing the generation of dust. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for description in the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.
[0021] Figure 1 FIG. is a schematic structural diagram of an embodiment of the dust prevention device provided by the present invention.
[0022] Explanation of the reference numerals in the drawings:
[0023] 100, Dust-proof device; 1, First belt line assembly; 2, Second belt line assembly; 3, Transition plate; 4, Elastic member; 5, Damping member; 6, Dust-proof cover; 7, Dust reduction system; 71, Spray pipe; 711, Spray hole; 72, Suction device; 8, Sensor.
[0024] The realization, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments
[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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.
[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0028] In the coal conveying system of a thermal power plant, a large amount of dust is generated during the processes of coal loading, unloading, conveying, and transferring, which not only affects the working environment, but may also pose a hazard to the health of the staff and cause environmental pollution. Especially when there is a height difference in the transfer position in the height direction, a common scenario is that coal is output from one belt line and falls onto another belt line, and the falling of coal will stir up a large amount of dust.
[0029] The present utility model proposes a dust-proof device.
[0030] Please refer to Figure 1 In an embodiment of the present utility model, the dust-proof device 100 includes: a first belt line assembly 1, a second belt line assembly 2, a transition plate 3, and an elastic member 4; the first belt line assembly 1 is used for inputting coal, extends in the left-right direction, and has an output end; the second belt line assembly 2 is used for outputting coal, extends in the left-right direction, is located below the first belt line assembly 1, and is spaced apart in the up-down direction. The second belt line assembly 2 has a first belt section that is offset from the first belt line assembly 1 in the up-down direction; one end of the transition plate 3 is rotatably installed at the output end of the first belt line assembly 1, and the other end extends towards the first belt section of the second belt line assembly 2; and one end of the elastic member 4 is connected to the transition plate 3 to drive the other end of the transition plate 3 to move in a direction away from the second belt line assembly 2.
[0031] The technical solution of the present utility model is to provide a transition plate 3 at the output end of the first belt line assembly 1. The transition plate 3 extends towards the first belt section of the second belt line assembly 2. The coal directly slides onto the second belt line assembly 2 by using the inclined plane, or after sliding a certain distance, the coal drops onto the second belt line assembly 2 after reducing the height difference with the second belt line assembly 2, thereby reducing the generation of dust. One end of the elastic member 4 is connected to the transition plate 3, mainly acting as a buffer. When the coal flow on the first belt line assembly 1 is large, the amount of coal flowing onto the transition plate is correspondingly large. At this time, the elastic member 4 deforms under force, and the other end of the transition plate 3 rotates towards the direction close to the second belt line assembly 2, reducing the height difference between the position where the coal leaves the transition plate 3 and the second belt line assembly 2, and slowing down the impact of the coal flow on the second belt line assembly 2, thereby reducing the dust generated by the impact of the coal flow.
[0032] When most of the coal slides off the transition plate 3, there may still be a part of the coal on the transition plate 3 at this time. After the external force brought by the coal suddenly disappears, and the force of the elastic member 4 on the transition plate 3 remains unchanged, it may cause the transition plate 3 and the coal on the transition plate 3 to suddenly move in the reverse direction. The coal on the transition plate 3 may break away from the transition plate 3, and dust is also generated. To prevent this phenomenon. In one embodiment, the dust-proof device 100 is further provided with a damping member 5, which is connected to the transition plate 3 and is respectively arranged on both sides of the transition plate 3 in the up-down direction with the elastic member 4. Due to the presence of the damping member 5, the position change of the transition plate 3 is stable, preventing dust from being generated after the external force is suddenly withdrawn.
[0033] In order to prevent the dust generated when coal is conveyed from a high place to a low place from spreading everywhere and polluting the environment, the dust-proof device 100 is further provided with a dust-proof cover 6. The dust-proof cover 6 has a cavity, and the output end, the transition plate 3, and a part of the second belt line assembly 2 are located in the cavity. The dust-proof cover 6 is arranged at a position where dust is likely to be generated, and the dust is restricted in the cavity to avoid dust diffusion. Among them, the dust-proof cover 6 is detachably arranged, and by detaching the connection between the parts, the effect of cleaning the inside of the cavity can be achieved.
[0034] In order to further suppress the diffusion of dust, the dust-proof device 100 is further provided with a dust-removing system 7. The dust-removing system 7 includes: a water supply device and a spray pipe 71. The spray pipe 71 extends in the front-rear direction, is communicated with the water supply device, and is installed in the cavity. The liquid provided by the water supply device is sprayed out from the spray pipe 71, which can generate fine water mist. The water mist combines with the dust in the air, so that the dust settles, thereby achieving the effect of dust prevention. Or, the water mist is sprinkled on the coal in advance to prevent the dust from spreading. In addition, the spray pipe 71 extends in the front-rear direction, corresponding to the width direction of the transition plate 3, and can better cover the area where the coal is conveyed, realizing large-range coverage.
[0035] In order to enable the liquid sprayed out by the spray pipe 71 to have a large spraying angle and a wide range, a plurality of spray holes 711 are respectively arranged at intervals along the circumferential direction and the axial direction of the spray pipe 71, and the plurality of spray holes 711 are arranged facing the upper side of the transition plate 3.
[0036] In order to purify the environment inside the dust-proof cover 6, the dust-removing system 7 further includes a suction device 72. The suction device 72 is installed in the cavity and is arranged facing the upper side of the transition plate 3. The suction device 72 is arranged inside the dust-proof cover 6. The suction device 72 can suck the dust and water mist mixture inside the dust-proof cover 6, and after filtering and purification treatment, discharge the clean air, thereby realizing the air circulation and purification inside the dust-proof cover 6.
[0037] In order to detect the flow rate of coal, adjust the flow rate of coal, and correspondingly control devices such as the air suction device 72 and the water supply device, in one type of embodiment, the transition plate 3 has a first position and a second position in its moving stroke and moves between the first position and the second position. The dust prevention device 100 further includes: a sensor 8 and a controller; the sensor 8 is arranged towards the area between the first position and the second position; the controller is electrically connected to the sensor 8, and the controller has a timing module. Among them, when there is no coal on the transition plate 3, the transition plate 3 is in the first position. When there is coal on the transition plate 3, the limit position reached by the transition plate 3 is the second position. When the transition plate 3 moves from the first position to the second position, when it moves to a position where it can be detected by the sensor 8, it indicates that there is more coal on the transition plate 3 at this time. If, within a period of time, the proportion of the time when the transition plate 3 is detected by the sensor 8 in this time period reaches a set value, it is determined that the coal conveying flow rate is large at this time. Multiple set values can be set, corresponding to different coal conveying flow rates. When the coal conveying flow rate increases, the controller will correspondingly increase the power of the air suction device 72 and the water supply device to achieve the purpose of dust reduction and dust prevention.
[0038] In the prior art, only the flow rate of the first belt line assembly 1 and the flow rate of the second belt line assembly 2 can be known, and the flow rate of coal cannot be known. The above setting method can know the approximate range of the coal flow rate. If the coal conveying flow rate is too large, the conveying flow rate needs to be reduced. The first belt line assembly 1 is provided with a driving motor, and the controller is electrically connected to the driving motor. The controller reduces the operating power of the first belt line assembly 1.
[0039] In one embodiment, the dust prevention device 100 further includes a concentration detector, which is installed in the cavity for real-time understanding of the dust concentration. The controller is electrically connected to the concentration detector, and the controller is also respectively electrically connected to the water supply device and the air suction device 72. The controller can also adjust the power of the water supply device and the air suction device 72 in real time according to the dust concentration.
[0040] In order to prevent coal from slipping from both sides of the transition plate 3, both sides of the transition plate 3 in the front-rear direction extend upward to form a stop portion.
[0041] The above is only an exemplary embodiment of the present invention, and it does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A dust-proof device, characterized in that, Comprising: A first belt line assembly for inputting coal, extending in the left-right direction and having an output end; A second belt line assembly for outputting coal, extending in the left-right direction, located below the first belt line assembly, and spaced apart in the up-down direction. The second belt line assembly has a first belt section that is offset from the first belt line assembly in the up-down direction; A transition plate, one end of which is rotatably mounted at the output end of the first belt line assembly, and the other end extends towards the first belt section of the second belt line assembly; and, An elastic member, one end of which is connected to the transition plate to drive the other end of the transition plate to move in a direction away from the second belt line assembly.
2. The dust-proof device according to claim 1, wherein The dust-proof device further includes a damping member, which is connected to the transition plate and is respectively disposed on both sides of the transition plate in the up-down direction with the elastic member.
3. The dust-proof device according to claim 2, wherein The dust-proof device further includes a dust-proof cover, which has a cavity, and the output end, the transition plate, and a part of the second belt line assembly are located in the cavity.
4. The dust-proof device according to claim 3, characterized in that, The dust-proof device further includes a dust reduction system, and the dust reduction system includes: A water supply device; A spray pipe, extending in the front-back direction, communicating with the water supply device, and installed in the cavity.
5. The dust-proof device according to claim 4, characterized in that, A plurality of spray holes are respectively spaced apart along the circumferential and axial directions of the spray pipe, and the plurality of spray holes are arranged towards the upper side of the transition plate.
6. The dust-proof device according to claim 4, characterized in that, The dust reduction system further includes a suction device, which is installed in the cavity and is arranged towards the upper side of the transition plate.
7. The dust-proof device according to claim 4, wherein The transition plate has a first position and a second position in its moving stroke and moves between the first position and the second position. The dust-proof device further includes: A sensor, arranged towards the area between the first position and the second position; A controller, electrically connected to the sensor, and the controller has a timing module.
8. The dust-proof device according to claim 7, characterized in that, The first belt line assembly includes a driving motor, and the controller is electrically connected to the driving motor.
9. The dust-proof device according to claim 7, wherein, The dust-proof device further includes a concentration detector, which is installed in the cavity, and the controller is electrically connected to the concentration detector. The controller is also respectively electrically connected to the water supply device and the suction device.
10. The dust-proof device according to claim 1, characterized in that, Stop portions are formed by extending upwards on both sides of the transition plate in the front-back direction.
Citation Information
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