Water seepage prevention device for fly ash feed port

Abstract

The utility model relates to the related technical field of pulverized coal storage, in particular to a water seepage prevention device for a coal ash feeding port, which comprises a pipeline for feeding coal ash, a sliding piece connected to the outer surface of the pipeline in a sliding mode, a sealing cover movably clamped to a port of the pipeline, and a rotating shaft fixedly connected to the outer side wall of the sealing cover. One end, far away from the sealing cover, of the rotating shaft is connected with the sliding part, the rotating shaft is rotationally connected to the sliding part, and the sliding part is provided with a rotating assembly used for rotating the rotating shaft. And in order to better communicate the pipeline with the transport vehicle, the rotating assembly on the sliding part can rotate the sealing cover, so that the sealing cover is staggered from the port of the pipeline, the pipeline can be better connected with other pipelines, and the problem can be better solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverized coal storage, in particular to a device for preventing water seepage at the coal ash inlet. Background Technique

[0002] Coal ash is a fine powder industrial by-product generated during the combustion of coal in coal-fired power plants. Coal ash is widely used in the construction industry. It can be used to produce building materials such as cement, mortar, and concrete. And in some specific cases, coal ash can also be used as lightweight aggregate or for the production of autoclaved aerated concrete, foam concrete, etc. In order to facilitate the access and placement of coal ash at any time, coal ash is generally stored in a storage bin centrally, and the storage condition of coal ash is to keep it dry at all times.

[0003] After the coal ash is transported to the location where the storage bin is located by a transport vehicle, it is docked with the connecting pipe on the storage bin through the output pipe of the transport vehicle. Then, the coal ash loaded on the transport vehicle will be conveyed into the storage bin through the two connected pipes. During this process, in order to ensure a dry environment inside the storage bin, a sealing structure is generally set at the pipe opening on the storage bin, and a valve is generally used to control the opening and closing of the pipe. The purpose is to isolate the storage bin from the outside world. The valve is generally set at a certain distance from the pipe opening. However, this will cause the position between the valve and the pipe opening to be extremely vulnerable to rain erosion. When conveying coal ash to the storage bin through the pipe, it is necessary to wipe the eroded position, which is rather troublesome. Otherwise, water will be directly brought into the storage bin, which will have a certain impact on the coal ash inside the storage bin. And if a foreign object with a drying effect is used to block the pipe opening position, although the pipe opening position will be comprehensively protected, when using the pipe to convey coal ash into the storage bin, it is necessary to remove the foreign object used for blocking. Then, the removed blocking object is extremely easy to be lost or contaminated, and it is not convenient to use.

[0004] Based on the above situation, it is necessary to design a device for preventing water seepage at the coal ash inlet to solve the above problems. Content of the Utility Model

[0005] The utility model provides a device for preventing water seepage at the coal ash inlet to solve the problem of water seepage prevention at the coal ash inlet in the prior art.

[0006] The technical problems solved by the utility model are realized by adopting the following technical solutions:

[0007] A fly ash feed port water seepage prevention device comprises a fly ash feeding pipe, a sliding part is slidably connected to the outer surface of the pipe, a sealing cover is movably clamped at the port of the pipe, a rotating shaft is fixedly connected to the outer side wall of the sealing cover, one end of the rotating shaft away from the sealing cover is connected to the sliding part, and the rotating shaft is rotatably connected to the sliding part, and the sliding part is provided with a rotating component for rotating the rotating shaft.

[0008] Preferably, the rotating assembly includes a rotating ring plate rotatably connected to the sliding member, a ring gear fixedly connected to one end of the rotating ring plate, and a gear fixedly connected to the rotating shaft, and the gear is meshed with the ring gear.

[0009] Preferably, the rotating assembly further comprises a limiting protrusion fixedly connected to the other end of the rotating ring plate and a limiting groove provided on the outer surface of the sliding member, and the limiting protrusion is slidably connected to the limiting groove.

[0010] Preferably, the sealing cover is composed of an outer shell and a blocking block, the outer shell is movably engaged with an outer side wall of the port of the pipeline, and the blocking block is movably engaged with an inner side wall of the port of the pipeline.

[0011] Preferably, the diameter of the blocking block gradually decreases from the main body to a direction away from the main body, and the blocking block is made of a flexible material.

[0012] Preferably, the sliding member is connected to the rotating shaft via a connecting frame, and one end of the connecting frame is fixedly connected to the sliding member, and one end of the connecting frame away from the sliding member is rotatably connected to the rotating shaft.

[0013] Preferably, a fixing ring is fixedly connected to the outer surface of the pipe, a telescopic tube is fixedly connected to the fixing ring, a telescopic rod is slidably connected to one end of the telescopic tube, an end of the telescopic rod away from the telescopic tube is fixedly connected to the sliding member, and a spring is connected between the telescopic tube and the telescopic rod.

[0014] The utility model has the following beneficial effects: by arranging a sliding member and a sealing cover on the outer surface of the pipeline, the sliding member can drive the sealing member to move synchronously, and for better communication between the pipeline and the transport vehicle, the rotating assembly on the sliding member can rotate the sealing cover, thereby staggering the position with the port of the pipeline, so as to facilitate better connection between the pipeline and other pipelines, and when the sealing cover blocks and opens the port of the pipeline, the sealing cover will not leave the pipeline body, so that there is no risk of loss, and the sealing cover is more effective in blocking the port of the pipeline than using a valve, and can block the position of the port of the pipeline to isolate the inside of the pipeline from erosion by moisture such as rainwater. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the first state structure of the present utility model Figure 1 :

[0017] Figure 2 Schematic diagram of the first state structure of the present utility model Figure 2 :

[0018] Figure 3 Schematic diagram of the second state structure of the present utility model Figure 1 :

[0019] Figure 4 Schematic diagram of the second state structure of the present utility model Figure 2 ;

[0020] Figure 5 For the present utility model Figure 1 Left view;

[0021] Figure 6 For the present utility model Figure 5 Schematic cross-sectional structure diagram;

[0022] Figure 7 Schematic diagram of a partial structure of the present utility model.

[0023] In the figure, 1, pipeline; 2, sliding member; 3, sealing cover; 30, outer shell; 31, plugging block; 4, rotating shaft; 5, rotating ring plate; 6, gear ring; 7, gear; 8, limiting protrusion; 9, limiting groove; 10, connecting frame; 11, fixing ring; 12, telescopic tube; 13, telescopic rod; 14, spring; 15, fixing rod; 16, clamping plate. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following further elaborates the present utility model in conjunction with specific illustrations.

[0025] Refer to Figures 1-7As shown in the figure, the anti-seepage device for the fly ash feed inlet includes a pipe 1 for feeding fly ash. When this pipe 1 is in use, after the fly ash is transported by a transport vehicle (not shown in the figure) to the location of the storage bin (not shown in the figure), it is docked with the pipe 1 on the storage bin through the transport vehicle. Then, the fly ash loaded on the transport vehicle will be conveyed into the storage bin through the connected pipe 1. When the pipe 1 is static and not in use, to prevent moisture from eroding the inside of the pipe 1, a sliding member 2 is slidably connected to the outer surface of the pipe 1. The port of the pipe 1 is movably clamped with a sealing cover 3. A rotating shaft 4 is fixedly connected to the outer side wall of the sealing cover 3. The end of the rotating shaft 4 away from the sealing cover 3 is connected to the sliding member 2, and the rotating shaft 4 is rotatably connected to the sliding member 2. The sliding member 2 is provided with a rotating assembly for rotating the rotating shaft 4. When this structure is in use, as Figures 3-4 shown, the sliding member 2 slides on the outer surface of the pipe 1 towards the port position of the pipe 1. During the sliding, it will drive the connected sealing cover 3 to move. When the sealing cover 3 moves to the port position of the pipe 1, stop sliding the sliding member 2. At this time, the sealing cover 3 exceeds the port position of the pipe 1, and there is a certain distance between the sealing cover 3 and the port of the pipe 1. Then use the rotating assembly to rotate the sealing cover 3. Because the rotating shaft 4 is located at a point on the outer side wall of the sealing cover 3, when using the rotating assembly to rotate the sealing cover 3, the sealing cover 3 makes a circular motion with the axis of the rotating shaft 4 as the center, as Figures 1-2 shown. After the sealing cover 3 rotates to be opposite to the port position of the pipe 1, then move the sliding member 2 in the opposite direction, which will drive the sealing cover 3 to move towards the port position of the pipe 1 until the sealing cover 3 covers and clamps with the port of the pipe 1. At this time, stop sliding the sliding member 2, and the port of the pipe 1 is closed, and its inner wall will not be eroded by moisture.

[0026] Among them, the rotating assembly includes a rotating ring plate 5 rotatably connected to the sliding member 2, a gear ring 6 fixedly connected to one end of the rotating ring plate 5, and a gear 7 fixedly connected to the rotating shaft 4. The gear 7 meshes with the gear ring 6. When the sliding member 2 slides on the pipe 1, the rotating ring plate 5 moves along with the movement of the sliding member 2. When the rotating ring plate 5 rotates on the sliding member 2, there is a certain frictional force between the rotating ring plate 5 and the sliding member 2. The purpose is that after the rotating ring plate 5 rotates, it will not rotate easily again. When the sliding member 2 and the sealing cover 3 move to a suitable position and start to block the port of the pipe 1, at this time, rotate the rotating ring plate 5, which will drive the gear ring 6 to rotate, and the gear ring 6 will drive the meshing gear 7 to rotate. The gear 7 will drive the rotating shaft 4 to rotate, thereby driving the sealing cover 3 to make a circular motion with the axis of the rotating shaft 4 as the center. Then the operation of clamping the sealing cover 3 with the port of the pipe 1 can be carried out.

[0027] Further, see Figure 2 As shown, the rotating assembly also includes a limiting protrusion 8 fixedly connected to the other end of the rotating ring plate 5 and a limiting groove 9 provided on the outer surface of the sliding member 2. The limiting protrusion 8 is slidably connected to the limiting groove 9. In order to ensure the accuracy of the rotating ring plate 5 during rotation, the sealing cover 3 can be rotated to a position corresponding to the port of the pipeline 1 each time when the sealing cover 3 is rotated. Therefore, the limiting protrusion 8 and the limiting groove 9 are provided. The moving trajectory and distance of the limiting protrusion 8 in the limiting groove 9 are also the distance that the rotating ring plate 5 rotates on the sliding member 2. The limiting protrusion 8 and the limiting groove 9 are provided according to the movement trajectory of the sealing cover 3. When the rotating ring plate 5 drives the limiting protrusion 8 to move from one end of the limiting groove 9 to the other end, the axis of the sealing cover 3 is exactly in line with the axis of the pipeline 1, so that the sealing cover 3 is conveniently connected to the port of the pipeline 1. When the rotating ring plate 5 drives the limiting protrusion 8 to move in the opposite direction, the sealing cover 3 will gradually stop connecting to the pipeline 1 and gradually stagger with the pipeline 1, so that the sliding member 2 can subsequently drive the sealing cover 3 to move on the outer surface of the pipeline 1.

[0028] Reference Figure 7 As shown, further, in order to better seal the port position of the pipeline 1, the sealing cover 3 is made according to the size of the port of the pipeline 1, and then the sealing cover 3 is composed of an outer shell 30 and a sealing block 31. The outer shell 30 is movably connected to the outer wall of the port of the pipeline 1, and the sealing block 31 is movably connected to the inner wall of the port of the pipeline 1. The outer shell 30 can isolate most of the water flow from directly impacting the port of the pipeline 1, and the sealing block 31 blocks the inner wall position of the port of the pipeline 1.

[0029] Among them, in order for the sealing block 31 to accurately and better seal the port of the pipeline 1, the diameter of the sealing block 31 gradually decreases from the main body to the direction away from the main body. The sealing block 31 is conical in shape and is made of flexible material. This is to ensure a closer contact between the sealing block 31 and the port of the pipeline 1, thereby providing a better sealing effect for the pipeline 1.

[0030] Reference Figure 1 as well as Figure 4 As shown, the sliding member 2 is connected to the rotating shaft 4 via a connecting frame 10, and one end of the connecting frame 10 is fixedly connected to the sliding member 2, and the end of the connecting frame 10 away from the sliding member 2 is rotationally connected to the rotating shaft 4. When the rotating assembly drives the sealing cover 3 to rotate via the rotating shaft 4, the connecting frame 10 provides support for the rotation of the rotating shaft 4. When the sliding member 2 moves, the sliding member 2 will also drive the rotating shaft 4 and the sealing cover 3 to move synchronously together via the connecting frame 10.

[0031] Reference Figure 6As shown, in order to strengthen the contact force between the sealing cover 3 and the port of the pipeline 1 when the sealing cover 3 plugs the port of the pipeline 1, since the greater the contact force between the two, the better the sealing effect of the sealing cover 3 on the port of the pipeline 1, a fixing ring 11 is fixedly connected to the outer surface of the pipeline 1, a telescopic pipe 12 is fixedly connected to the fixing ring 11, one end of the telescopic pipe 12 is slidably connected with a telescopic rod 13, the end of the telescopic rod 13 away from the telescopic pipe 12 is fixedly connected to the sliding member 2, and a spring 14 is connected between the telescopic pipe 12 and the telescopic rod 13. In order to make the force on the sliding member 2 more uniform, several such structures can be arranged around the central axis of the sliding member 2. When moving the sliding member 2 and the sealing cover 3 to plug the port of the pipeline 1, the sliding member 2 will pull the spring 14 to open through the telescopic rod 13, thereby causing the spring 14 to generate a reaction force in the opposite direction. When the sealing cover 3 is docked and clamped with the port of the pipeline 1, release the sliding member 2. Under the action of several springs 14, the sliding member 2 moves in the reverse direction, and when moving, it will drive the sealing cover 3 to move synchronously through the connecting frame 10, thereby making the clamping between the sealing cover 3 and the port of the pipeline 1 tighter.

[0032] Refer to Figure 2 As shown, and in order to make the clamping force between the sealing cover 3 and the port of the pipeline 1 more uniform, a fixing rod 15 is fixedly connected to a position symmetrical to the connecting frame 10 on the sliding member 2. On the sealing cover 3, two clamping plates 16 are fixedly connected to a position symmetrical to the rotating shaft 4, and there is a certain space between the two clamping plates 16. The end of the fixing rod 15 away from the sliding member 2 is movably clamped in the space between the two clamping plates 16. The sliding member 2 can pull and squeeze the sealing cover 3 through the movable clamping relationship between the fixing member and the clamping plate 16, but does not affect the rotation of the sealing cover 3.

Claims

1. A fly ash feed inlet water seepage prevention device, comprising a fly ash feed pipe (1), characterized in that: A sliding member (2) is slidably connected to the outer surface of the pipeline (1); a sealing cover (3) is movably clamped at the port of the pipeline (1); a rotating shaft (4) is fixedly connected to the outer wall of the sealing cover (3); an end of the rotating shaft (4) away from the sealing cover (3) is connected to the sliding member (2), and the rotating shaft (4) is rotatably connected to the sliding member (2); and a rotating assembly for rotating the rotating shaft (4) is provided on the sliding member (2).

2. The fly ash feed inlet water seepage prevention device according to claim 1, characterized in that: The rotating assembly comprises a rotating ring plate (5) rotatably connected to the sliding member (2), a ring gear (6) fixedly connected to one end of the rotating ring plate (5), and a gear (7) fixedly connected to the rotating shaft (4), wherein the gear (7) meshes with the ring gear (6).

3. The fly ash feed inlet water seepage prevention device according to claim 2, characterized in that: The rotating assembly further comprises a limiting protrusion (8) fixedly connected to the other end of the rotating ring plate (5) and a limiting groove (9) provided on the outer surface of the sliding member (2), wherein the limiting protrusion (8) is slidably connected to the limiting groove (9).

4. The fly ash feed inlet water seepage prevention device according to claim 1, characterized in that: The sealing cover (3) is composed of an outer shell (30) and a sealing block (31); the outer shell (30) is movably engaged with the outer side wall of the port of the pipeline (1); and the sealing block (31) is movably engaged with the inner side wall of the port of the pipeline (1).

5. The fly ash feed inlet water seepage prevention device according to claim 4, characterized in that: The diameter of the blocking block (31) gradually decreases from the main body to a direction away from the main body, and the blocking block (31) is made of a flexible material.

6. The fly ash feed inlet water seepage prevention device according to claim 1, characterized in that: The sliding member (2) and the rotating shaft (4) are connected via a connecting frame (10), one end of the connecting frame (10) is fixedly connected to the sliding member (2), and one end of the connecting frame (10) away from the sliding member (2) is rotatably connected to the rotating shaft (4).

7. The fly ash feed inlet water seepage prevention device according to claim 1, characterized in that: A fixing ring (11) is fixedly connected to the outer surface of the pipe (1), a telescopic tube (12) is fixedly connected to the fixing ring (11), one end of the telescopic tube (12) is slidably connected to a telescopic rod (13), one end of the telescopic rod (13) away from the telescopic tube (12) is fixedly connected to the sliding member (2), and a spring (14) is connected between the telescopic tube (12) and the telescopic rod (13).

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