A double-bunker intercommunication device for raw coal bunker
By designing flexible sealing and conveying mechanisms, the sealing and unobstructed flow problems caused by slight settlement deformation in the dual-compartment interconnection device of the raw coal bunker were solved, thereby improving sealing and unobstructed flow and preventing raw coal leakage and equipment blockage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HENGQI INTELLIGENT ELECTRIC POWER ENGINEERING CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-23
AI Technical Summary
The existing dual-compartment interconnection device for raw coal bunkers is difficult to adapt to relative displacement or slight deformation caused by changes in coal storage volume, temperature differences, and foundation settlement due to welding connections. This can easily lead to cracking at the connection points and leakage of raw coal, resulting in material waste and safety hazards.
The system employs a flexible sealing and conveying mechanism, including a fixing ring, rubber pad, bellows, sealing components, and cleaning components. The bellows expands and contracts to accommodate minor settlement deformation, the sealing ring slides to adjust the sealing performance, and the motor drives the rotating rod and spiral ring to convey raw coal. A scraper removes adhering coal from the pipeline, ensuring both sealing and unobstructed flow.
It effectively prevents dust leakage from gaps caused by minor settlement and deformation, maintains the sealing and unobstructed flow of the conveying pipeline, reduces dust leakage, and avoids equipment downtime.
Smart Images
Figure CN224393568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of raw coal storage technology, and in particular to a dual-compartment interconnection device for raw coal storage. Background Technology
[0002] A dual-compartment interconnection device for raw coal bunkers consists of two coal storage bunkers connected to a conveying pipeline via a flexible sealing mechanism at the bottom. It is equipped with a conveying mechanism including a motor, rotating rod, spiral ring, and cleaning components. This device enables bidirectional conveying of raw coal between the two bunkers. The flexible sealing mechanism ensures a leak-proof seal, while the cleaning components remove pipeline residues, ensuring smooth conveying of raw coal.
[0003] After the motor starts, it drives the rotating rod and the spiral ring to rotate. The spiral ring propels the raw coal between the two coal storage bins and the conveying pipeline to achieve interconnection. At the same time, the flexible sealing mechanism forms a seal to prevent leakage during conveying through the expansion and contraction of the bellows and the cooperation of the sealing ring and the rubber gasket. The motor drive end synchronously drives the sleeve rod, connecting rod and scraper of the cleaning component to rotate, scraping off the residual raw coal in the pipeline and ensuring continuous and smooth conveying.
[0004] In existing technologies, the connection between the dual-compartment interconnection device of some raw coal bunkers and the raw coal bunker is usually welded. This connection method is difficult to adapt to the relative displacement or slight deformation of the two bunkers caused by changes in coal storage, temperature differences, foundation settlement, etc., which can easily lead to cracks in the connection part due to stress concentration, causing raw coal leakage. This not only wastes materials, but may also cause safety hazards due to the accumulation of leaked coal. Therefore, a dual-compartment interconnection device for raw coal bunkers is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a dual-compartment interconnection device for raw coal bunkers, which aims to improve the problem that the dual-compartment interconnection device for raw coal bunkers is difficult to adapt to slight settlement deformation of the two compartments, thus causing dust leakage through gaps.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A dual-compartment interconnection device for raw coal bunkers includes two coal storage bunkers. The bottom of the two coal storage bunkers is fixedly connected to a flexible sealing mechanism, and the other end of the flexible sealing mechanism is fixedly connected to a conveying pipe. A conveying mechanism is fixedly connected to the outside of the coal storage bunkers.
[0008] The flexible sealing mechanism includes a fixed ring, a rubber pad is fixedly connected to the front side of the fixed ring, a bellows is fixedly connected to the front side of the rubber pad, and a sealing component is fixedly connected to the front side of the bellows.
[0009] As a further description of the above technical solution:
[0010] The sealing assembly includes a locking ring one, a locking ring two fixedly connected to the outside of the bellows, a fixing ring two fixedly connected to the outside of one of the coal storage bins, a sealing ring one sleeved on the outside of one of the coal storage bins, a locking ring two slidably connected to the outside of the sealing ring one, a rubber pad two fixedly connected to the rear side of the fixing ring two, and a sealing ring two sleeved on the outside of the coal storage bin.
[0011] As a further description of the above technical solution:
[0012] The inner wall of the first fixed ring is fixedly connected to the outside of the coal storage bin, and the inside of the first locking ring is slidably connected to the outside of the bellows.
[0013] As a further description of the above technical solution:
[0014] The inner wall of the second locking ring is slidably connected to the outside of the bellows, and the rear side of the first sealing ring is in contact with the other end of the bellows.
[0015] As a further description of the above technical solution:
[0016] The conveying mechanism includes a motor, a rotating rod is fixedly connected to the drive end of the motor, a spiral ring is fixedly connected to the outside of the rotating rod, and a cleaning component is fixedly connected to the drive end of the motor.
[0017] As a further description of the above technical solution:
[0018] The cleaning assembly includes a sleeve, and multiple connecting rods are fixedly connected to the outside of the sleeve. A scraper is fixedly connected to the other end of each of the multiple connecting rods.
[0019] As a further description of the above technical solution:
[0020] The bottom of the motor is fixedly connected to the outside of the coal storage silo, and one end of the sleeve is fixedly connected to the drive end of the motor.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the sealing ring 2 and the sealing ring 1 are clamped together by connecting the first fixing ring and the locking ring, and the second fixing ring and the locking ring 2. The first rubber pad and the second rubber pad provide a buffer for the second sealing ring and the first sealing ring, preventing the two sealing pads from being deformed due to excessive clamping. When the coal enters the corrugated pipe, the connection between the corrugated pipe and the two coal storage bins is kept sealed by the sealing protection of the first sealing ring and the second sealing ring. The corrugated design of the corrugated pipe can adapt to the slight settlement deformation of the two bins and make relative displacement to avoid dust leakage through gaps, thereby reducing dust leakage.
[0023] 2. In this utility model, the motor starts and drives the rotating rod, which in turn drives the spiral ring. The spiral ring assists the coal in moving from one coal storage bin to another. When the coal adheres to the inner wall of the conveying pipe, the sleeve rod that rotates with the rotating rod drives the connecting rod, which in turn moves the scraper. The scraper can scrape off the coal adhering to the inner wall of the conveying pipe, keeping the conveying pipe running smoothly and preventing the equipment from stopping due to blockage caused by coal adhering to the pipe. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a dual-compartment interconnection device for raw coal bunkers proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the conveying pipeline of a dual-compartment interconnection device for raw coal bunkers proposed in this utility model;
[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0027] Figure 4 for Figure 2 Enlarged view of point B in the middle.
[0028] Legend:
[0029] 1. Coal storage bin; 2. Conveying pipeline; 3. Flexible sealing mechanism; 31. Fixing ring one; 32. Rubber pad one; 33. Bellows; 34. Sealing assembly; 341. Locking ring one; 342. Locking ring two; 343. Rubber pad two; 344. Fixing ring two; 345. Sealing ring one; 346. Sealing ring two; 4. Conveying mechanism; 41. Motor; 42. Rotating rod; 43. Spiral ring; 44. Cleaning assembly; 441. Sleeve rod; 442. Connecting rod; 443. Scraper. Detailed Implementation
[0030] 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.
[0031] Reference Figure 2 and Figure 3One embodiment of this utility model is a dual-compartment interconnection device for raw coal storage, comprising two coal storage compartments 1. A flexible sealing mechanism 3 is fixedly connected to the bottom of the two coal storage compartments 1, and a conveying pipe 2 is fixedly connected to the other end of the flexible sealing mechanism 3. A conveying mechanism 4 is fixedly connected to the outside of the coal storage compartments 1. When the conveying mechanism 4 is started, it will drive the raw coal in the coal storage compartments 1 to flow, and then realize the interconnection of raw coal between the two coal storage compartments 1 through the conveying pipe 2. The flexible sealing mechanism 3 plays a sealing role in this process to prevent raw coal leakage.
[0032] The flexible sealing mechanism 3 includes a fixed ring 31, a rubber pad 32 fixedly connected to the front side of the fixed ring 31, a bellows 33 fixedly connected to the front side of the rubber pad 32, and a sealing component 34 fixedly connected to the front side of the bellows 33. The fixed ring 31 fixes the rubber pad 32. When the bellows 33 expands or contracts due to pressure changes during raw coal transportation, it causes the rubber pad 32 to deform. The elastic recovery force of the rubber pad 32 then enhances the sealing effect, thereby improving the sealing performance.
[0033] The sealing assembly 34 includes a locking ring 341, a locking ring 342 fixedly connected to the outside of the bellows 33, a fixing ring 344 fixedly connected to the outside of one of the coal storage bins 1, a sealing ring 345 sleeved on the outside of one of the coal storage bins 1, a locking ring 342 slidably connected to the outside of the sealing ring 345, a rubber pad 343 fixedly connected to the rear side of the fixing ring 344, and a sealing ring 346 sleeved on the outside of the coal storage bin 1. When the bellows 33 extends or retracts, it causes the locking ring 342 to move outside the sealing ring 345. During sliding, the sealing ring 345 will be tightly fitted to the outer wall of the coal storage bin 1. Then, the locking ring 341 and the fixing ring 31, and the locking ring 342 and the fixing ring 344 will cooperate to achieve the purpose of initial sealing. At the same time, the fixing ring 344 fixes the rubber pad 343. When the coal storage bin 1 has a slight displacement, it will drive the sealing ring 346 to move. Then, the contact between the sealing ring 346 and the rubber pad 343 will further enhance the sealing effect, ensuring that the entire device is reliably sealed during the raw coal transportation process.
[0034] Reference Figure 2 and Figure 4The conveying mechanism 4 includes a motor 41, a rotating rod 42 fixedly connected to the drive end of the motor 41, a spiral ring 43 fixedly connected to the outside of the rotating rod 42, and a cleaning component 44 fixedly connected to the drive end of the motor 41. When the motor 41 starts, it drives the rotating rod 42 to rotate through the drive end. When the rotating rod 42 rotates, it drives the outer spiral ring 43 to rotate synchronously. Then, through the spiral propulsion action of the spiral ring 43, the raw coal in the coal storage bin 1 is pushed along the conveying pipeline 2 to another coal storage bin 1, so as to achieve the purpose of conveying raw coal between the two bins. At the same time, when the drive end of the motor 41 drives the rotating rod 42 to rotate, it will synchronously drive the cleaning component 44 to operate, ensuring the cleanliness of the inside of the pipeline during the conveying process.
[0035] The cleaning component 44 includes a sleeve rod 441, with multiple connecting rods 442 fixedly connected to the outside of the sleeve rod 441. A scraper 443 is fixedly connected to the other end of the multiple connecting rods 442. When the drive end of the motor 41 rotates, it will drive the sleeve rod 441 to rotate synchronously with the drive end. When the sleeve rod 441 rotates, it will drive the multiple externally fixed connecting rods 442 to make a circular motion. When the connecting rods 442 move, they will drive the scraper 443 at the end to scrape along the inner wall of the conveying pipe 2. Then, through the close contact and continuous scraping between the scraper 443 and the inner wall of the pipe, the residual raw coal debris in the pipe is removed, thereby preventing the accumulation of raw coal and clogging the pipe and ensuring smooth conveying.
[0036] Reference Figures 2 to 4 The inner wall of the fixed ring 31 is fixedly connected to the outside of the coal storage silo 1, and the inside of the locking ring 341 is slidably connected to the outside of the bellows 33. The fixed ring 31 provides a stable support for the entire flexible sealing mechanism 3 through its fixed connection with the coal storage silo 1. When the coal storage silo 1 undergoes a slight deformation due to changes in the amount of raw coal stored, it will drive the fixed ring 31 to move synchronously. Then, through the stabilizing effect of the fixed ring 31 on the rubber pad 32, it ensures that the bellows 33 can expand and contract normally. The sliding of the locking ring 341 outside the bellows 33 can adjust its position when the bellows 33 expands and contracts, thereby driving other parts of the sealing assembly 34 to adapt to the shape change of the bellows 33, thereby achieving the effect of maintaining the overall sealing performance of the sealing assembly 34.
[0037] The inner wall of the locking ring 342 is slidably connected to the outside of the bellows 33, and the rear side of the sealing ring 345 is in contact with the other end of the bellows 33. When the bellows 33 expands and contracts due to the pressure of raw coal conveying, it will drive the locking ring 342 to slide outside. The sliding of the locking ring 342 will push the sealing ring 345 to press against the outer wall of the coal storage bin 1. Then, through the contact between the sealing ring 345 and the end of the bellows 33, the sealing performance of the connection between the bellows 33 and the coal storage bin 1 is enhanced, preventing raw coal from leaking from the gap.
[0038] The bottom of the motor 41 is fixedly connected to the outside of the coal storage silo 1, and one end of the sleeve rod 441 is fixedly connected to the drive end of the motor 41. The motor 41 provides stable support for its own operation through the fixed connection with the coal storage silo 1. When the motor 41 starts, the rotation of its drive end will drive the sleeve rod 441 to rotate synchronously. The rotation of the sleeve rod 441 will drive the connecting rod 442 and the scraper 443 to make circular motion. Then, the scraper 443 scrapes the inner wall of the conveying pipe 2 to achieve the effect of removing residual raw coal in the pipe and ensuring smooth conveying.
[0039] Working principle: When coal is being conveyed, the fixing ring 31 and locking ring 341, and the fixing ring 344 and locking ring 342 are connected by bolts. The connection of the fixing ring 31 and locking ring 341, and the fixing ring 344 and locking ring 342, clamps the sealing ring 346 and sealing ring 345. The rubber pads 32 and 343 provide buffer for the sealing rings 346 and 345, preventing deformation of the two sealing pads due to excessive clamping. When the coal enters the bellows 33, the sealing of the bellows 33 and the connection between the bellows 33 and the two coal storage bins 1 is kept sealed by the sealing of the sealing rings 345 and 346. The bellows 33, through its corrugated design, can adapt to the slight settlement deformation of the two bins, avoiding dust leakage due to the slight settlement deformation of the two bins, thereby reducing dust leakage.
[0040] When coal passes through the conveying pipe 2, the motor 41 starts and drives the rotating rod 42. The rotating rod 42 moves and drives the spiral ring 43, which assists the coal from one coal storage bin 1 to another. When the coal adheres to the inner wall of the conveying pipe 2, the sleeve rod 441, which rotates with the rotating rod 42, drives the connecting rod 442, which in turn moves the scraper 443. The scraper 443 can scrape off the coal adhering to the inner wall of the conveying pipe 2, keeping the conveying pipe 2 in normal transport and preventing the equipment from stopping due to coal adhering to block the conveying pipe 2.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dual-compartment interconnection device for raw coal bunkers, comprising two coal storage bunkers (1), characterized in that: The bottom of the two coal storage silos (1) is fixedly connected to a flexible sealing mechanism (3), the other end of the flexible sealing mechanism (3) is fixedly connected to a conveying pipe (2), and the outside of the coal storage silos (1) is fixedly connected to a conveying mechanism (4). The flexible sealing mechanism (3) includes a fixing ring (31), a rubber pad (32) is fixedly connected to the front side of the fixing ring (31), a bellows (33) is fixedly connected to the front side of the rubber pad (32), and a sealing assembly (34) is fixedly connected to the front side of the bellows (33).
2. The raw coal bunker dual-bunker interconnection device according to claim 1, characterized in that: The sealing assembly (34) includes a locking ring one (341), a locking ring two (342) fixedly connected to the outside of the bellows (33), a fixing ring two (344) fixedly connected to the outside of one of the coal storage bins (1), a sealing ring one (345) sleeved on the outside of one of the coal storage bins (1), a locking ring two (342) slidably connected to the outside of the sealing ring one (345), a rubber pad two (343) fixedly connected to the rear side of the fixing ring two (344), and a sealing ring two (346) sleeved on the outside of the coal storage bin (1).
3. The raw coal bunker dual-bunker interconnection device according to claim 2, characterized in that: The inner wall of the fixed ring (31) is fixedly connected to the outside of the coal storage silo (1), and the inside of the locking ring (341) is slidably connected to the outside of the corrugated pipe (33).
4. The raw coal bunker dual-bunker interconnection device according to claim 2, characterized in that: The inner wall of the second locking ring (342) is slidably connected to the outside of the bellows (33), and the rear side of the first sealing ring (345) is in contact with the other end of the bellows (33).
5. The raw coal bunker dual-bunker interconnection device according to claim 1, characterized in that: The conveying mechanism (4) includes a motor (41), a rotating rod (42) is fixedly connected to the drive end of the motor (41), a spiral ring (43) is fixedly connected to the outside of the rotating rod (42), and a cleaning component (44) is fixedly connected to the drive end of the motor (41).
6. The raw coal bunker dual-compartment interconnection device according to claim 5, characterized in that: The cleaning component (44) includes a sleeve (441), and a plurality of connecting rods (442) are fixedly connected to the outside of the sleeve (441). A scraper (443) is fixedly connected to the other end of the plurality of connecting rods (442).
7. The raw coal bunker dual-compartment interconnection device according to claim 6, characterized in that: The bottom of the motor (41) is fixedly connected to the outside of the coal storage silo (1), and one end of the sleeve rod (441) is fixedly connected to the drive end of the motor (41).