Curved coal falling pipe structure with dust suppression and blockage prevention

Abstract

The utility model provides a kind of curve coal drop pipe structure with dust suppression and anti-blocking, including shroud, the end portion of shroud is fixedly installed with two coal drop pipes symmetrically, material guiding mechanism is fixed on shroud, material guiding mechanism includes electric push rod and briquetting, electric push rod is fixedly installed on shroud, the telescopic end of electric push rod is fixedly connected with briquetting, rotating installation is carried out in the part of shroud inside close to coal drop pipe, rotating rod is fixedly connected with stop plate and material guiding plate on rotating rod, stop plate is equipped with sliding slot inside, briquetting is slid in sliding slot part, material guiding plate is rotatably connected between stop plate and shroud;Rotating rod drives material guiding plate to accurately shunt single stream to two coal drop pipes, so that single pipe flow is halved, reduce pipe wall impact pressure, the inclined structure of material guiding plate and coal drop pipe entrance forms smooth connection, avoid coal material to form right angle impact at entrance, reduce pipe wall abrasion and coal particle breakage, indirectly reduce dust production amount.

Description

Technical Field

[0001] This utility model belongs to the technical field of curved coal chuting pipe structure design, specifically relating to a curved coal chuting pipe structure with dust suppression and anti-clogging properties. Background Technology

[0002] In industries such as thermal power, steel, and coking, curved coal chutes serve as core components connecting upstream conveying equipment with downstream storage and transfer devices, playing a crucial role in guiding, buffering, and transporting coal. Their curved trajectory design alters the direction of coal descent, reducing the impact and breakage problems associated with traditional right-angle coal chutes, thus making them widely used in coal transfer processes.

[0003] However, the existing guide structure in the curved coal chute is not convenient to flexibly adapt to changes in coal specifications and flow rate. When the coal being transported is switched from lump coal to fine coal, adjusting the angle of the fixed guide plate is cumbersome. Fine coal is prone to flow deviation due to excessive flow velocity, accumulating on one side of the pipe and forming bridging blockages. Furthermore, the hard friction between the fixed guide plate and the coal can easily generate fine coal dust. When the flow deviates, the impact on the pipe wall will exacerbate dust splashing. When transporting large flow rates of coal, the flow concentrates on impacting the same position on the pipe wall, causing the wear rate in that area to be faster than in other areas, which can easily shorten the service life of the pipe. Utility Model Content

[0004] The purpose of this invention is to provide a curved coal chute structure with dust suppression and anti-clogging properties to solve the above problems. The rotating rod drives the guide plate to accurately divert the single material flow into two coal chutes, thereby halving the flow rate of the single pipe and reducing the impact pressure on the pipe wall. The guide plate and the inclined structure at the inlet of the coal chute form a smooth connection, avoiding right-angle impact of coal at the inlet, reducing pipe wall wear and coal particle breakage, and indirectly reducing dust generation.

[0005] This utility model achieves the above objectives through the following technical solutions: A curved coal chute structure with dust suppression and anti-clogging features includes a protective cover. Two coal chute pipes are symmetrically fixedly installed at the ends of the protective cover. A material guiding mechanism is fixedly installed on the protective cover. The material guiding mechanism includes an electric push rod and a pressure block. The electric push rod is fixedly installed on the protective cover. The extension end of the electric push rod is fixedly connected to the pressure block. A rotating rod is rotatably installed inside the protective cover near the coal chute pipes. A stop plate and a material guiding plate are fixedly connected to the rotating rod. A groove is provided in the stop plate. The pressure block slides in the groove. The material guiding plate is rotatably connected to the protective cover.

[0006] In a preferred embodiment, the two coal chutes are symmetrically arranged about the rotating rod, and the end of the guide plate opposite to the rotating rod is arranged with an inclined structure.

[0007] As a preferred embodiment, the end of the protective cover away from the coal drop pipe is rotatably equipped with a guide roller, and the ends of the two coal drop pipes near the protective cover are inclined.

[0008] As a preferred embodiment, a hopper is fixedly installed at the end of the coal chute, and the part of the coal chute near the hopper is arranged with an arc-shaped structure.

[0009] As a preferred embodiment, a sealing mechanism is slidably installed on the part of the coal chute near the hopper. The sealing mechanism includes a mounting base and a hydraulic rod. The mounting base is fixedly connected to the coal chute, and the hydraulic rod is fixedly mounted on the mounting base. A connecting block is fixed to the telescopic end of the hydraulic rod.

[0010] As a preferred embodiment, a sliding rod is fixedly installed on the connecting block, and a sealing plate is fixedly connected to the end of the sliding rod.

[0011] In a preferred embodiment, the slide bar is arranged in an L-shape, and both the slide bar and the sealing plate are slidably connected to the coal chute. The side wall of the sealing plate facing away from the slide bar is arranged in an inclined plane.

[0012] As a preferred embodiment, two dust suppression mechanisms are symmetrically fixed on both sides of the hopper. Each dust suppression mechanism includes a mounting frame and a connecting pipe. Two sets of mounting frames are symmetrically fixed on the side wall of the hopper. A connecting pipe is fixed on the mounting frame, and several nozzles are fixedly installed at equal intervals on the connecting pipe.

[0013] As a preferred embodiment, the end of the connecting pipe is connected to a water inlet pipe.

[0014] In a preferred embodiment, the water inlet pipe is connected to the interior of the nozzle via a connecting pipe, and the nozzle is inclined.

[0015] Compared with the prior art, the present invention has the following advantages: This invention uses an electric push rod as a power source. Its telescopic end drives the pressure block to move in a straight line. The pressure block is embedded in the groove of the abutment plate, slides with the groove, and generates a thrust on the abutment plate. Under the thrust of the pressure block, the abutment plate rotates around the rotating rod. Since the guide plate and the abutment plate are fixedly connected to the same rotating rod, the rotating rod synchronously drives the guide plate to rotate until the inclined end of the guide plate away from the rotating rod precisely aligns with the inlet of the target coal drop pipe. The guide plate accurately diverts the single material flow into two coal drop pipes, halving the flow rate of the single pipe and reducing the impact pressure on the pipe wall. The inclined structure of the guide plate and the inlet of the coal drop pipe forms a smooth connection, avoiding right-angle impact of coal at the inlet, reducing pipe wall wear and coal particle breakage, and indirectly reducing dust generation. If the coal specifications or flow rate change, the guide angle can be adjusted in real time by the electric push rod to ensure stable material delivery and avoid deviation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the protective cover and the electric push rod of this utility model; Figure 3 This is a schematic diagram of the connection structure between the rotating rod and the guide plate of this utility model; Figure 4 This is a schematic diagram of the connection structure between the coal chute and the hopper of this utility model; Figure 5 This is a schematic diagram of the connection structure between the coal chute and the sealing plate of this utility model.

[0017] The following components are shown in the diagram: 1. Protective cover; 2. Guide roller; 3. Material guiding mechanism; 301. Electric push rod; 302. Press block; 303. Rotating rod; 304. Support plate; 305. Slide chute; 306. Material guide plate; 4. Coal drop pipe; 5. Sealing mechanism; 501. Mounting base; 502. Hydraulic rod; 503. Connecting block; 504. Slide rod; 505. Sealing plate; 6. Feed hopper; 7. Dust suppression mechanism; 701. Mounting frame; 702. Connecting pipe; 703. Water inlet pipe; 704. Nozzle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 3As shown, this utility model embodiment provides a curved coal drop pipe structure with dust suppression and anti-clogging features, including a protective cover 1. Two coal drop pipes 4 are symmetrically fixedly installed at the ends of the protective cover 1. A material guiding mechanism 3 is fixedly installed on the protective cover 1. The material guiding mechanism 3 includes an electric push rod 301 and a pressure block 302. The electric push rod 301 is fixedly installed on the protective cover 1. The extension end of the electric push rod 301 is fixedly connected to the pressure block 302. The extension end of the electric push rod 301 drives the pressure block 302 to move in a straight line. The pressure block 302 is embedded in the sliding groove 305 provided in the abutment plate 304 to transmit thrust. After adjustment, the position of the rotating rod 303 can be locked by maintaining the extension state. Inside the protective cover 1, near the coal drop pipe 4, a rotating rod 303 is rotatably installed. A stop plate 304 and a guide plate 306 are fixedly connected to the rotating rod 303. Under the thrust of the pressure block 302, the stop plate 304 rotates around the rotating rod 303. A chute 305 allows the pressure block 302 to slide along the stop plate 304, buffering force deviations. The rotating rod 303 simultaneously transmits the rotational force of the stop plate 304 to the guide plate 306, achieving coordinated angle adjustment. A chute 305 is provided inside the stop plate 304, and the pressure block 302 slides along the chute 305. The guide plate 306 is rotatably connected to the protective cover 1, allowing two coal drop pipes to pass through. Pipe 4 is symmetrically arranged about the rotating rod 303. The end of the guide plate 306 facing away from the rotating rod 303 is set with an inclined structure. The rotating rod 303 drives the guide plate 306 to rotate synchronously until the inclined end of the guide plate 306 facing away from the rotating rod 303 is precisely connected to the inlet of the target coal drop pipe 4. The guide plate 306 accurately diverts the single material flow into the two coal drop pipes 4, so that the flow rate of the single pipe is halved, reducing the impact pressure on the pipe wall. The inclined structure of the guide plate 306 and the inlet of the coal drop pipe 4 forms a smooth connection, avoiding the coal material from forming a right angle impact at the inlet, reducing pipe wall wear and coal particle breakage, and indirectly reducing the amount of dust generated.

[0020] Please see Figures 1 to 3 As shown, a guide roller 2 is rotatably installed at the end of the protective cover 1 away from the coal drop pipe 4. After the coal is discharged from the upstream conveying equipment, it first contacts the guide roller 2 at the entrance of the protective cover 1. The guide roller 2 rotates automatically under the impact of the coal, smoothly guiding the coal horizontally to the guide plate 306 area inside the protective cover 1. The ends of the two coal drop pipes 4 near the protective cover 1 are inclined. A hopper 6 is fixedly installed at the end of the coal drop pipe 4 to receive the coal guided by the guide plate 306. The coal enters the pipe along the inclined inlet and flows into the hopper 6 through the arc transition section. During the operation of the equipment, the coal is conveyed along a curved trajectory in the pipe to avoid accumulation caused by right-angle turns. The part of the coal drop pipe 4 near the hopper 6 is set with an arc structure.

[0021] Please see Figure 4 and Figure 5As shown, a sealing mechanism 5 is slidably installed on the part of the coal chute 4 near the feed hopper 6. The sealing mechanism 5 specifically includes a mounting base 501 and a hydraulic rod 502. The mounting base 501 is fixedly connected to the coal chute 4, and the hydraulic rod 502 is fixedly fixed on the mounting base 501. A connecting block 503 is fixedly fixed to the telescopic end of the hydraulic rod 502. A sliding rod 504 is fixedly installed on the connecting block 503. A sealing plate 505 is fixedly connected to the end of the sliding rod 504. The sliding rod 504 is L-shaped. The telescopic amount of the hydraulic rod 502 is adjusted according to the coal flow rate, so that it drives the connecting block 503 and the sliding rod 504 to slide. The sliding rod 504 controls the opening and closing degree of the sealing plate 505. When the material flow is large, the gap is increased, and when the material flow is small, the gap is decreased. The sliding rod 504 and the sealing plate 505 are slidably connected to the coal chute 4. The side wall of the sealing plate 505 away from the sliding rod 504 is set with an inclined structure.

[0022] Please see Figure 4 and Figure 5 As shown, two dust suppression mechanisms 7 are symmetrically fixed on both sides of the feeding hopper 6. The dust suppression mechanism 7 specifically includes a mounting frame 701 and a connecting pipe 702. Two sets of mounting frames 701 are symmetrically fixed on the side wall of the feeding hopper 6. The connecting pipe 702 is fixed on the mounting frame 701. Several nozzles 704 are fixedly installed at equal intervals on the connecting pipe 702. High-pressure water enters the connecting pipe 702 through the water inlet pipe 703. The pressure of the water inlet pipe 703 is adjusted according to the dust concentration. The high-pressure water in the connecting pipe 702 is atomized by the nozzles 704 to form water mist, which is sprayed at an angle onto the coal material at the outlet of the feeding hopper 6. The water mist contacts the surface of the coal material, moistens the fine coal particles and inhibits the spread of dust. The end of the connecting pipe 702 is connected to the water inlet pipe 703. The water inlet pipe 703 is connected to the inside of the nozzle 704 through the connecting pipe 702. The nozzle 704 is set at an angle.

[0023] In use, after the coal is discharged from the upstream conveying equipment, it first contacts the guide roller 2 at the inlet of the protective cover 1. The guide roller 2 rotates automatically under the impact of the coal, smoothly guiding the coal horizontally to the guide plate 306 area inside the protective cover 1. Then, according to the coal specifications or flow requirements, the electric push rod 301 is activated by the control system. The telescopic end of the electric push rod 301 drives the pressure block 302 to move linearly. The pressure block 302 is embedded in the sliding groove 305 provided in the abutment plate 304 to transmit the thrust. After adjustment, the position of the rotating rod 303 can be locked by maintaining the telescopic state. Under the thrust of the pressure block 302, the abutment plate 304 rotates around the rotating rod 303, and the sliding groove 305 allows... The pressure block 302 slides along the abutment plate 304 to buffer force deviation; the rotating rod 303 synchronously transmits the rotational force of the abutment plate 304 to the guide plate 306, realizing the linkage adjustment of the angle; since the guide plate 306 and the abutment plate 304 are fixedly connected to the same rotating rod 303, the rotating rod 303 synchronously drives the guide plate 306 to rotate until the inclined end of the guide plate 306 away from the rotating rod 303 precisely connects to the inlet of the target coal drop pipe 4. The guide plate 306 accurately diverts the single material flow into the two coal drop pipes 4, halving the flow rate of the single pipe and reducing the impact pressure on the pipe wall. The inclined structure of the guide plate 306 and the inlet of the coal drop pipe 4 forms a smooth connection, avoiding the coal from forming a right angle impact at the inlet. The impact reduces pipe wall wear and coal particle breakage, indirectly reducing dust generation. If the material flow changes, the angle of the guide plate 306 is adjusted in real time by the electric push rod 301 to ensure precise connection between the material flow and the inlet of the coal drop pipe 4. The coal guided by the guide plate 306 enters the pipe along the inclined inlet and flows to the hopper 6 through the arc transition section. During operation, the coal is conveyed along a curved trajectory in the pipe to avoid accumulation caused by right-angle turns. The hydraulic rod 502 is activated by the control system. The extension and retraction end of the hydraulic rod 502 drives the connecting block 503 to slide along the outer wall of the coal drop pipe 4. The extension and retraction of the hydraulic rod 502 is adjusted according to the coal flow rate, so that it drives the connecting block 503 and the slide rod 504 to slide. 04. Control the opening and closing degree of the sealing plate 505. Increase the gap when the material flow is large and decrease the gap when the material flow is small. After the equipment stops, the hydraulic rod 502 drives the sealing plate 505 to reset and close the outlet of the coal drop pipe 4 to prevent residual coal from falling and external dust from entering. When feeding, open the valve of the water inlet pipe 703. High-pressure water enters the connecting pipe 702 through the water inlet pipe 703. The connecting pipe 702 is fixed to both sides of the feed hopper 6 through the mounting bracket 701. Adjust the pressure of the water inlet pipe 703 according to the dust concentration. The high-pressure water in the connecting pipe 702 is atomized by the nozzle 704 to form water mist. It is sprayed at an angle onto the coal at the outlet of the feed hopper 6. The water mist contacts the surface of the coal, moistens the fine coal particles and inhibits the spread of dust.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A curved coal chute structure with dust suppression and anti-clogging features, comprising a protective cover (1), characterized in that: Two coal drop pipes (4) are symmetrically fixedly installed at the ends of the protective cover (1). A material guiding mechanism (3) is fixed on the protective cover (1). The material guiding mechanism (3) includes an electric push rod (301) and a pressure block (302). An electric push rod (301) is fixedly installed on the protective cover (1). A pressure block (302) is fixedly connected to the telescopic end of the electric push rod (301). A rotating rod (303) is rotatably installed in the protective cover (1) near the coal drop pipe (4). A stop plate (304) and a material guiding plate (306) are fixedly connected on the rotating rod (303). A sliding groove (305) is provided in the stop plate (304). A pressure block (302) slides in the sliding groove (305). The material guiding plate (306) is rotatably connected to the protective cover (1).

2. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 1, characterized in that: The two coal drop pipes (4) are symmetrically arranged about the rotating rod (303), and the guide plate (306) is arranged with an inclined structure at the end opposite to the rotating rod (303).

3. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 1, characterized in that: The protective cover (1) is rotatably mounted with a guide roller (2) at the end away from the coal drop pipe (4), and the two coal drop pipes (4) are inclined at the ends near the protective cover (1).

4. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 1, characterized in that: The end of the coal chute (4) is fixedly installed with a feeding hopper (6), and the part of the coal chute (4) near the feeding hopper (6) is set with an arc surface structure.

5. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 1, characterized in that: A sealing mechanism (5) is slidably installed on the part of the coal chute (4) near the feed hopper (6). The sealing mechanism (5) includes a mounting base (501) and a hydraulic rod (502). The mounting base (501) is fixedly connected to the coal chute (4), and the hydraulic rod (502) is fixed on the mounting base (501). A connecting block (503) is fixed to the telescopic end of the hydraulic rod (502).

6. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 5, characterized in that: A slide rod (504) is fixedly installed on the connecting block (503), and a sealing plate (505) is fixedly connected to the end of the slide rod (504).

7. A curved coal chute structure with dust suppression and anti-clogging properties according to claim 6, characterized in that: The slide bar (504) is L-shaped. The slide bar (504) and the sealing plate (505) are slidably connected to the coal drop pipe (4). The side wall of the sealing plate (505) away from the slide bar (504) is inclined.

8. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 4, characterized in that: Two dust suppression mechanisms (7) are symmetrically fixed on both sides of the hopper (6). The dust suppression mechanism (7) includes a mounting frame (701) and a connecting pipe (702). Two sets of mounting frames (701) are symmetrically fixed on the side wall of the hopper (6). A connecting pipe (702) is fixed on the mounting frame (701). Several nozzles (704) are fixedly installed on the connecting pipe (702) at equal intervals.

9. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 8, characterized in that: The end of the connecting pipe (702) is connected to the water inlet pipe (703).

10. The curved coal chute structure with dust suppression and anti-clogging properties according to claim 9, characterized in that: The water inlet pipe (703) is connected to the inside of the nozzle (704) through the connecting pipe (702), and the nozzle (704) is set at an angle.

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