Dust removal device for coal conveying system of thermal power plant

Abstract

The utility model provides a dust removal device for a coal conveying system of a thermal power plant, and relates to the technical field of dust removal of thermal power plants. Two sets of supporting plate guide rods are fixed to the left side and the right side of the main supporting frame. The outer sides of the two sets of supporting plate guide rods are each provided with a supporting plate in a sliding mode. The left side and the right side of the main supporting frame are each rotationally provided with a lead screw. Motors are mounted on the left side and the right side of the top of the main supporting frame through supports correspondingly, and the bottom ends of main shafts of the motors are fixedly connected with the top ends of lead screws; a spraying plate is slidably mounted at the bottom of each supporting plate, and a water inlet connector and a plurality of nozzles are fixed to the bottom of each spraying plate. When the device is used for maintaining and replacing the spray head, a worker does not need to lean against the conveying belt or even climb to the conveying belt, so that the conveying belt is prevented from being damaged, and the device is more sanitary during maintenance and replacement.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dust removal of thermal power plant, especially relates to a dust removal device for coal conveying system of thermal power plant. BACKGROUND

[0002] The coal conveying system of thermal power plant produces a large amount of dust in the operation process, which seriously affects the environment and equipment operation, so that effective dust removal technology is an important link of environmental protection management of thermal power plant.

[0003] At present, the dust removal device used in thermal power plant removes dust through spraying, in order to facilitate the replacement and maintenance of the spray head, the device is designed as a lifting structure, for example, the patent with the application number 202221102257.4 discloses a dust removal device for coal conveying belt of thermal power plant, the above device can reduce the height when replacing and maintaining the spray head, but the reduced spray head is still located above the conveying belt, so the worker needs to lean on the conveying belt or even climb onto the conveying belt during maintenance and replacement, which not only easily damages the conveying belt, but also is unhygienic. SUMMARY

[0004] The utility model provides a dust removal device for coal conveying system of thermal power plant, which avoids damaging the conveying belt and makes maintenance and replacement more hygienic.

[0005] In a first aspect, the present disclosure provides a dust removal device for coal conveying system of thermal power plant, which specifically comprises a main support frame.

[0006] Two groups of supporting plate guide rods are fixed on the left and right sides of the main support frame; a supporting plate is slidingly installed on the outside of each group of supporting plate guide rods; a lead screw is rotatably installed on the left and right sides of the main support frame; a motor is installed on the left and right sides of the top of the main support frame through a support, and the main shaft bottom end of the motor is fixedly connected with the top end of the lead screw; a spray plate is slidingly installed on the bottom of each supporting plate, and a water inlet connector and a plurality of spray heads are fixed on the bottom of each spray plate.

[0007] In at least some embodiments, a rectangular protruding block is arranged on the top of each spray plate, and the rectangular protruding block on the top of each spray plate can be tightly attached to the outer wall of the supporting plate when the spray plates slide left and right.

[0008] In at least some embodiments, the spray plates are tightly attached to each other when they slide to the innermost side, one side of one of the spray plates is provided with a cylindrical protruding block, and the other side of the other spray plate is provided with a corresponding cylindrical groove.

[0009] In at least some embodiments, a rectangular groove is arranged on the left and right sides of the main support frame, and the supporting plate can slide up and down in the rectangular groove on the left and right sides of the main support frame.

[0010] At least some embodiments, the spray plate on each of a cylindrical hole, cylindrical hole diameter equal to the outer diameter of the lead screw, and spray plate sliding to the innermost spray plate on the cylindrical hole will be located directly below the lead screw.

[0011] At least some embodiments, the front and rear of the plate is provided with a circular hole, and the inner diameter of the circular hole is equal to the outer diameter of the cylindrical rod portion of the plate guide rod.

[0012] At least some embodiments, the plate guide rod is an L-shaped rod, and the plate is lowered to the bottom of the top surface of the plate guide rod bottom plate.

[0013] At least some embodiments, the middle of the plate is provided with a threaded hole, and the threaded hole in the middle of the plate is embedded with the lead screw.

[0014] At least some embodiments, the plate is lowered to the bottom of the bottom end of the lead screw, and the cylindrical hole on the spray plate is separated.

[0015] At least some embodiments, the bottom of the plate is provided with two L-shaped plates, the front and rear sides of the spray plate are provided with a long strip-shaped guide groove, and the L-shaped plate at the bottom of the plate is slidably connected with the long strip-shaped guide groove on the front and rear sides of the spray plate.

[0016] The utility model provides a dust removal device of coal conveying system of thermal power plant has the following beneficial effects:

[0017] The lead screw and the plate cooperate in the utility model, which can adjust the height of the spray plate, and the spray plate can be horizontally slidably adjusted when the plate is lowered to the bottom, so that the spray plate can be pulled out to the outside of the conveyor belt. Therefore, workers do not need to lean on the conveyor belt or even climb onto the conveyor belt when maintaining and replacing the spray head, which avoids damaging the conveyor belt and makes maintenance and replacement more sanitary. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings described below only relate to some embodiments of the utility model, but not limit the utility model.

[0020] In the drawings:

[0021] Figure 1 The main shaft side schematic view of the spray plate after moving up in the application is shown;

[0022] Figure 2 The main shaft side schematic view of the spray plate after moving down in the application is shown;

[0023] Figure 3 The main shaft side schematic view when the spray plate is pulled out in the application is shown;

[0024] Figure 4 The shaft side schematic view of the main support frame, the supporting plate guide rod and the screw rod in the application is shown;

[0025] Figure 5 The structure schematic view of the supporting plate after being partially cut in the application is shown;

[0026] Figure 6 The top shaft side schematic view of the spray plate in the application is shown;

[0027] List of reference signs

[0028] 1, main support frame; 2, supporting plate guide rod; 3, screw rod; 4, motor; 5, supporting plate; 6, spray plate; 7, water inlet joint; 8, spray head. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0030] Embodiment one: please refer to Figures 1 to 6 :

[0031] The utility model provides a coal conveying system dust collector of thermal power plant, include: main support frame 1,

[0032] The left and right sides of main support frame 1 are fixed with two groups of supporting plate guide rods 2, and main support frame 1 is used to support other parts of the device, and the supporting plate guide rod 2 is used to support the sliding of the supporting plate 5. Two groups of supporting plate guide rods 2 are slidably installed with a supporting plate 5 on the outside, and the supporting plate 5 is used to support the spray plate 6. The left and right sides of main support frame 1 are also rotatably installed with a screw rod 3, and the screw rod 3 is used to adjust the height of the supporting plate 5. The left and right sides of the top of main support frame 1 are rotatably installed with a motor 4 through a support, and the bottom end of the main shaft of motor 4 is fixedly connected with the top end of screw rod 3, and motor 4 is used to drive screw rod 3 to rotate. The bottom of the supporting plate 5 is slidably installed with a spray plate 6, and the bottom of the spray plate 6 is fixedly connected with a water inlet joint 7 and a plurality of spray heads 8. When in use, the external water source will enter the cavity in the spray plate 6 through the water inlet joint 7 and be sprayed outwards through the spray head 8.

[0033] In the embodiments of the present disclosure, as Figures 1-3And Figure 6 As shown in the figure, the top of the spray plate 6 is provided with a rectangular protruding block on the left and right sides, and the rectangular protruding block at the top of the spray plate 6 can be tightly attached to the outer wall of the supporting plate 5 when the spray plate 6 slides left and right. The rectangular protruding block at the top of the spray plate 6 cooperates with the supporting plate 5 to play a limiting role, avoiding the disengagement of the spray plate 6 from the supporting plate 5.

[0034] In the embodiment of the present disclosure, as shown in the figure, Figures 1-3 When the spray plate 6 slides to the innermost side, it will be tightly attached to each other, and one side of one of the spray plates 6 is provided with a cylindrical protruding block, and the other side of the other spray plate 6 is provided with a corresponding cylindrical slot. When the spray plate 6 is pushed towards the inner side, the cylindrical protruding block on one of the spray plates 6 will also be embedded in the cylindrical slot on the other spray plate 6, so that the connection position of the two spray plates 6 can be locked, avoiding the drooping of one end of the spray plate 6.

[0035] In the embodiment of the present disclosure, as shown in the figure, Figures 1-5 As shown in the figure, the left and right sides of the main support frame 1 are each provided with a rectangular slot, and the supporting plate 5 can slide up and down in the rectangular slots on the left and right sides of the main support frame 1, thereby facilitating the adjustment of the height of the supporting plate 5 and the spray plate 6.

[0036] In the embodiment of the present disclosure, as shown in the figure, Figures 1-3 and Figure 6 As shown in the figure, the spray plate 6 is provided with a cylindrical hole, the inner diameter of the cylindrical hole is equal to the outer diameter of the lead screw 3, and when the spray plate 6 slides to the innermost side, the cylindrical hole on the spray plate 6 will be located directly below the lead screw 3. When the two motors 4 drive the lead screw 3 to rotate forward, the lead screw 3 will drive the supporting plate 5 to slide upwards, and at the same time the lead screw 3 will be re-embedded in the cylindrical hole on the spray plate 6, thereby firmly fixing the position of the spray plate 6.

[0037] In the embodiment of the present disclosure, as shown in the figure, Figures 1-3 and Figure 5 As shown in the figure, the front and rear sides of the supporting plate 5 are each provided with a circular hole, and the inner diameter of the circular hole is equal to the outer diameter of the cylindrical rod portion of the supporting plate guide rod 2. When the supporting plate 5 slides up and down, the circular holes on the front and rear sides will slide with the supporting plate guide rod 2, ensuring the stability of the supporting plate 5 when it slides up and down.

[0038] In the embodiment of the present disclosure, as shown in the figure, Figures 1-5 As shown in the figure, the supporting plate guide rod 2 is an L-shaped rod, and when the supporting plate 5 moves down to the bottom, it will be tightly attached to the top surface of the bottom flat plate of the supporting plate guide rod 2, thereby limiting the supporting plate 5 and avoiding the disengagement of the supporting plate 5 from the lead screw 3.

[0039] In the embodiment of the present disclosure, as shown in the figure, Figures 1-3 and Figure 5As shown, the middle positions of the supporting plates 5 are provided with threaded holes, and the threaded holes in the middle of the supporting plates 5 are embedded with the lead screws 3, so that when the lead screws 3 are rotated by the motors 4, the supporting plates 5 in the middle of the threaded holes can be driven to slide downward outside the supporting plate guide rods 2.

[0040] In the embodiments of the present disclosure, as shown in Figures 1-3 and Figure 5 and Figure 6 As shown, the bottom of each supporting plate 5 is provided with two L-shaped plates, the front and rear sides of the spray plate 6 are provided with a long strip-shaped guide groove, and the L-shaped plates at the bottom of the supporting plates 5 are in sliding cooperation with the long strip-shaped guide grooves at the front and rear sides of the spray plate 6. When the spray heads 8 on the spray plate 6 need to be cleaned or replaced, the spray plate 6 can be pulled out, and at this time, the L-shaped plates at the bottom of the supporting plates 5 and the long strip-shaped guide grooves at the front and rear sides of the spray plate 6 can ensure the stable sliding of the spray plate 6.

[0041] In Embodiment Two, on the basis of Embodiment One, as shown in Figures 1 to 6 When the supporting plates 5 are moved downward to the bottom, the bottom end of the lead screw 3 will be separated from the cylindrical hole on the spray plate 6. When the spray heads 8 on the spray plate 6 need to be cleaned or replaced, the two motors 4 can be controlled to drive the lead screw 3 to rotate reversely, and at this time, the lead screw 3 and the threaded holes in the middle of the supporting plates 5 can drive the supporting plates 5 to slide downward outside the supporting plate guide rods 2. When the supporting plates 5 slide downward to the bottom, the bottom end of the lead screw 3 will be separated from the cylindrical hole on the spray plate 6, so that the spray plate 6 can be pulled out.

[0042] The working principle of the embodiment is as follows: when installed, the device can be supported and fixed outside the coal conveying belt through the main support frame 1, and the spray plate 6 is located above the conveying belt. When dust reduction of the coal conveying system is needed, the external water supply pipe is connected with the water inlet joint 7, and then the external water source enters the cavity inside the spray plate 6 through the water inlet joint 7 and is sprayed outwards through the spray head 8, so that the dust reduction effect can be achieved. When the spray head 8 on the spray plate 6 needs to be cleaned or replaced, the two motors 4 can be controlled to drive the lead screw 3 to rotate reversely. At this time, the threaded hole in the middle of the lead screw 3 and the supporting plate 5 can drive the supporting plate 5 to slide downwards outside the supporting plate guide rod 2. When the supporting plate 5 slides to the bottom, the bottom end of the lead screw 3 is separated from the cylindrical hole on the spray plate 6, so that the spray plate 6 can be pulled outwards. Then the spray plate 6 is not located above the coal conveying belt, and cleaning or replacement on the conveying belt is not needed. After cleaning or replacement is completed, the spray plate 6 can be pushed inwards again until the rectangular protruding block on the top of the spray plate 6 is tightly attached to the outer wall of the supporting plate 5. At this time, the cylindrical protruding block on one of the spray plates 6 is also embedded in the cylindrical groove on the other spray plate 6, so that the connection position of the two spray plates 6 can be locked to avoid the end of the spray plate 6 from drooping. At this time, the cylindrical hole on the spray plate 6 is located directly below the lead screw 3, so that the two motors 4 can be controlled to drive the lead screw 3 to rotate forwards. At this time, the lead screw 3 drives the supporting plate 5 to slide upwards, and the lead screw 3 is also embedded in the cylindrical hole on the spray plate 6, so that the position of the spray plate 6 can be fixed firmly.

[0043] In this paper, the following points need to be noted:

[0044] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0045] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0046] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A dust removal device for a coal conveying system of a coal-fired power plant, comprising: The utility model provides a main support frame (1), its characterized in be: The left and right sides of the main support frame (1) are fixed with two groups of supporting plate guide rods (2), the outer sides of the two groups of supporting plate guide rods (2) are slidably installed with a supporting plate (5), the left and right sides of the main support frame (1) are also rotatably installed with a lead screw (3), the left and right sides of the top of the main support frame (1) are all installed with a motor (4) through support, and the bottom end of the main shaft of the motor (4) is fixedly connected with the top end of the lead screw (3), the bottom of the supporting plate (5) is slidably installed with a spraying plate (6), and the bottom of the spraying plate (6) is fixed with a water inlet connector (7) and a plurality of spray heads (8).

2. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The left and right sides of the main support frame (1) are provided with a rectangular groove, and the supporting plate (5) can slide up and down in the rectangular groove on the left and right sides of the main support frame (1).

3. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The front and back sides of the supporting plate (5) are provided with a circular hole, and the inner diameter of the circular hole is equal to the outer diameter of the cylindrical rod part of the supporting plate guide rod (2).

4. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The middle positions of the supporting plate (5) are provided with a threaded hole, and the threaded hole in the middle of the supporting plate (5) is embedded with the lead screw (3).

5. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The bottom of the supporting plate (5) is provided with two L-shaped plates, the front and back sides of the spraying plate (6) are provided with a long strip-shaped guide groove, and the L-shaped plates at the bottom of the supporting plate (5) are slidably matched with the long strip-shaped guide grooves on the front and back sides of the spraying plate (6).

6. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The top left and right sides of the spraying plate (6) are provided with a rectangular protruding block, and when the spraying plate (6) slides left and right, the rectangular protruding block at the top of the spraying plate (6) can be tightly attached to the outer wall of the supporting plate (5).

7. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, When the spraying plates (6) slide to the innermost side, they will be tightly attached to each other, one side of one of the spraying plates (6) is provided with a cylindrical protruding block, and the other side of the other spraying plate (6) is provided with a corresponding cylindrical groove.

8. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The spraying plate (6) is provided with a cylindrical hole, the inner diameter of the cylindrical hole is equal to the outer diameter of the lead screw (3), and when the spraying plate (6) slides to the innermost side, the cylindrical hole on the spraying plate (6) will be located directly below the lead screw (3).

9. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, The supporting plate guide rod (2) is an L-shaped rod, and when the supporting plate (5) moves down to the bottom, it will be tightly attached to the top surface of the flat plate at the bottom of the supporting plate guide rod (2).

10. The dust removal device of the coal conveying system of the thermal power plant according to claim 1, wherein, When the bottom of the screw rod (3) is separated from the cylindrical hole on the spray plate (6) as the bottom plate (5) moves down to the bottom.

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