A coal bunker unblocking device

By setting scrapers and arc-shaped column sliding structures in the curved material channel, combined with a servo motor driving the spiral blade shaft, the problem of coal block accumulation and retention in the material channel is solved, achieving stable coal block transportation and efficient blockage removal.

CN224428648UActive Publication Date: 2026-06-30NANYANG ZHENGHUA IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANYANG ZHENGHUA IND CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing material handling systems, crushed coal lumps tend to accumulate and stagnate in curved material channels, leading to decreased conveying efficiency and potential blockages that affect continuous conveying processes.

Method used

A first scraper and a second scraper are installed in the curved material channel. The scraper slides using the arc-shaped column to push the coal block to the unblocking box. Combined with the servo motor driving the spiral blade shaft and guide plate, the coal block is stably conveyed.

Benefits of technology

This reduces the accumulation and retention of coal blocks in the curved material channel, lowers the risk of blockage, improves the conveying efficiency from the extrusion chamber to the unblocking box, and enhances work efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224428648U_ABST
    Figure CN224428648U_ABST
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Abstract

This utility model discloses a coal bunker unblocking device, relating to the technical field of unblocking devices. The utility model includes an unblocking box, on which a compression chamber is fixedly fitted. Two curved material channels are connected and communicated between the compression chamber and the unblocking box. Two arc-shaped columns are slidably fitted onto the outer walls of the curved material channels. A clamping plate is engaged with the outer wall of each arc-shaped column. A first scraper is fixedly fitted onto the upper part of the clamping plate. A second scraper is elastically and slidably fitted onto one side of the first scraper. This utility model, by using the first and second scrapers located within the curved material channels and utilizing the sliding motion of the arc-shaped columns to move the first and second scrapers, reduces the problem of coal accumulation and stagnation within the curved material channels, lowers the risk of blockage, and improves the conveying efficiency of coal from the compression chamber to the unblocking box, thereby enhancing the working efficiency of the unblocking box.
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Description

Technical Field

[0001] This utility model belongs to the field of unblocking devices, specifically, it relates to a coal bunker unblocking device. Background Technology

[0002] The unblocking device effectively cleans the coal mixing bin opening by directly using nitrogen gas.

[0003] Patent application CN222743620U discloses a coal bunker unblocking device. Paragraph 0028 of the specification discloses that: by cooperating with the high inclined seat and the low inclined seat, the force plate is tilted, which facilitates the delivery of crushed coal blocks to the curved material channel. After being filtered by the filter plate, the coal blocks enter the unblocking box, solving the problem of large coal blocks easily causing blockage and improving work efficiency.

[0004] During actual use, the following defects were found: In the existing material conveying system, the crushed coal blocks need to be conveyed to the unblocking box through the curved material channel. However, due to the lack of an active pushing device inside the curved material channel, the coal blocks are very easy to accumulate and stagnate at the bends, which not only leads to a significant decrease in conveying efficiency, but may also create a blockage risk, seriously affecting the continuous conveying process of the crushed coal blocks in the extrusion chamber.

[0005] To address these shortcomings, a coal bunker unblocking device is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a coal bunker unblocking device.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A coal bunker unblocking device includes an unblocking box, on which an extrusion chamber is fixedly fitted, and the extrusion chamber is connected to and communicates with two curved material channels.

[0009] Two arc-shaped columns are slidably fitted on the outer wall of the curved material channel. A clamping plate is engaged with the outer wall of the arc-shaped column. A first scraper is fixedly fitted on the upper part of the clamping plate. A second scraper is elastically and slidably fitted on one side of the first scraper. The second scraper and the first scraper are located inside the curved material channel.

[0010] Optionally, the upper part of the unblocking box is provided with a placement groove, an inclined groove connected to the placement groove, multiple feed grooves connected to the inclined groove, and two second discharge ports. The first end of the curved material channel is connected to the second discharge port, and a conveyor belt is provided inside the placement groove.

[0011] Optionally, the extrusion chamber has a second feed inlet and two first discharge outlets. The second end of the curved material channel is connected to the first discharge outlet. The outer wall of the curved material channel has an arc-shaped groove, and the inner wall of the arc-shaped column is located inside the arc-shaped groove.

[0012] Optionally, a servo motor is fixedly fitted on the unblocking box, and a spiral blade shaft is fixedly fitted on the output end of the servo motor. A second discharge port is opened on the unblocking box, and the end of the spiral blade shaft is located inside the second discharge port. Two guide plates are fixedly fitted inside the unblocking box, and an arc-shaped plate is fixedly fitted between the two guide plates.

[0013] Optionally, a positioning post is fixedly fitted to the outer wall of the arc-shaped post, and a slot is provided on the positioning post. The lower end of the clamping plate is located inside the slot, and a threaded rod is fixedly fitted to the lower end of the clamping plate. A nut is threaded onto the threaded rod, and the nut is attached to the bottom of the positioning post.

[0014] Optionally, the first scraper has a first through hole and a guide groove connected to the first through hole, and one end of the second scraper is located inside the guide groove.

[0015] Optionally, a sliding rod is fixedly fitted on the second scraper, and a second through hole is provided on the connecting plate, with the sliding rod located inside the first through hole and the second through hole.

[0016] Optionally, a sliding disc is fixedly fitted at the end of the sliding rod away from the connecting plate, and a spring is fixedly fitted between the sliding disc and the connecting plate, with the spring sleeved around the periphery of the sliding rod.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] By setting the first and second scrapers in the curved material channel and using the sliding of the arc-shaped column to drive the first and second scrapers to move, the problem of coal blocks accumulating and stagnating in the curved material channel is reduced, the risk of blockage in the curved material channel is reduced, and the conveying efficiency of coal blocks from the extrusion chamber to the unblocking box is improved, thereby improving the working efficiency of the unblocking box.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] In the picture:

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a bottom view of an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the first scraper structure according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the second scraper structure according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of a card plate structure according to an embodiment of the present invention.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] Unblocking box 100, placement groove 101, inclined groove 102, feeding groove 103, extrusion chamber 104, second feeding port 105, first discharging port 106, curved material channel 107, arc groove 108, first feeding port 109, servo motor 110, arc plate 111, guide plate 112, second discharging port 113, spiral blade shaft 114, conveyor belt 115, arc column 200, positioning column 201, slot 202, clamping plate 203, threaded rod 204, nut 205, connecting plate 206, first scraper 207, guide groove 208, second scraper 209, sliding rod 210, sliding disc 211, spring 212, second through hole 213, first through hole 214.

[0029] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Please see Figure 1-5As shown, this embodiment provides a coal bunker unblocking device, including an unblocking box 100. An extrusion chamber 104 is fixedly fitted on the unblocking box 100. Two curved material channels 107 are connected and communicate between the extrusion chamber 104 and the unblocking box 100. The curved material channels 107 are inclined and the height of one end of the curved material channel 107 near the extrusion chamber 104 is higher than the height of the other end of the curved material channel 107 near the unblocking box 100.

[0032] Two arc-shaped columns 200 are slidably fitted on the outer wall of the curved material channel 107. A clamping plate 203 is engaged with the outer wall of the arc-shaped columns 200. A first scraper 207 is fixedly fitted on the upper part of the clamping plate 203. A second scraper 209 is elastically and slidably fitted on one side of the first scraper 207. The second scraper 209 and the first scraper 207 are located inside the curved material channel 107.

[0033] Working principle:

[0034] First, the coal block is placed on the upper side of the unblocking box 100, and the broken coal block is conveyed through the unblocking box 100. The uncrushed coal block enters the interior of the extrusion chamber 104 and is crushed through the extrusion chamber 104. Because the curved material channel 107 is inclined, the crushed coal block is cleaned through the curved material channel 107.

[0035] When coal blocks accumulate inside the curved material channel 107, the second scraper 209 is first slid into the interior of the first scraper 207. Then, the first scraper 207 and the second scraper 209 are placed inside the curved material channel 107. The first scraper 207 is positioned on the outer wall of the arc-shaped column 200 through the connecting plate 206. Then, the second scraper 209 is released and reset under the action of elasticity. One end of the second scraper 209 is attached to the inner wall of the curved material channel 107. Then, the arc-shaped column 200 is rotated. The arc-shaped column 200 drives the first scraper 207 to rotate inside the curved material channel 107 through the connecting plate 206. The first scraper 207 drives the second scraper 209 to rotate inside the curved material channel 107. The coal blocks accumulated inside the curved material channel 107 are pushed into the unblocking box 100 through the first scraper 207 and the second scraper 209, thereby completing the conveying of coal blocks.

[0036] By setting the first scraper 207 and the second scraper 209 in the curved material channel 107, and using the sliding of the arc column 200 to drive the first scraper 207 and the second scraper 209 to move, the problem of coal blocks accumulating and stagnating in the curved material channel 107 is reduced, the risk of blockage in the curved material channel 107 is reduced, the conveying efficiency of coal blocks from the extrusion chamber 104 to the unblocking box 100 is improved, and the working efficiency of the unblocking box 100 is improved.

[0037] like Figure 1-5As shown, the unblocking box 100 of this embodiment has a placement groove 101, an inclined groove 102 connected to the placement groove 101, a plurality of feed grooves 103 connected to the inclined groove 102, and two second discharge ports 113 on its upper part. The first end of the curved material channel 107 is connected to the second discharge port 113. The placement groove 101 is provided with a conveyor belt 115. The extrusion chamber 104 has a second feed port 105 and two first discharge ports 106. The second end of the curved material channel 107 is connected to the first discharge port 106. A servo motor 110 is fixedly fitted on the unblocking box 100. A spiral blade shaft 114 is fixedly fitted on the output end of the servo motor 110. The unblocking box 100 has a second discharge port 113. The end of the spiral blade shaft 114 is located inside the second discharge port 113. Two guide plates 112 are fixedly fitted inside the unblocking box 100. An arc plate 111 is fixedly fitted between the two guide plates 112. First, the coal blocks are conveyed by conveyor belt 115 and transported to the inclined chute 102. Crushed coal blocks fall into the unblocking box 100 through feed chute 103, while uncrushed coal blocks enter the extrusion chamber 104 through the second feed inlet 105 for crushing. The crushed coal blocks are then output through the first discharge outlet 106 of the extrusion chamber 104 and transported into the unblocking box 100 through the curved feed channel 107. Next, the servo motor 110 is activated, driving the spiral blade shaft 114 to rotate. The spiral blade shaft 114 conveys the coal blocks inside the arc plate 111, thus completing the coal conveying process. The guide plate 112 and arc plate 111 inside the unblocking box 100 guide the coal blocks, reducing disorderly flow and blockage or accumulation within the box, allowing the coal blocks to be discharged stably and quickly through the second discharge outlet 113.

[0038] like Figure 1-5As shown, in this embodiment, a positioning post 201 is fixedly fitted to the outer wall of the arc-shaped post 200. A slot 202 is provided on the positioning post 201. The lower end of the clamping plate 203 is located inside the slot 202. A threaded rod 204 is fixedly fitted to the lower end of the clamping plate 203. A nut 205 is threaded onto the threaded rod 204. The nut 205 is attached to the bottom of the positioning post 201. An arc-shaped groove 108 is provided on the outer wall of the curved material channel 107. The inner wall of the arc-shaped post 200 is located inside the arc-shaped groove 108. A first through hole is provided on the first scraper 207. 214. A guide groove 208 connected to the first through hole 214. One end of the second scraper 209 is located inside the guide groove 208. A sliding rod 210 is fixedly fitted on the second scraper 209. A second through hole 213 is provided on the connecting plate 206. The sliding rod 210 is located inside the first through hole 214 and the second through hole 213. A sliding disk 211 is fixedly fitted at the end of the sliding rod 210 away from the connecting plate 206. A spring 212 is fixedly fitted between the sliding disk 211 and the connecting plate 206. The spring 212 is sleeved on the periphery of the sliding rod 210. Align the inner wall of the arc-shaped column 200 with the arc-shaped groove 108 on the outer wall of the curved material channel 107 and embed it therein, so that the arc-shaped column 200 can slide smoothly in the arc-shaped groove 108. Then, put the lower end of the clamping plate 203 into the clamping groove 202 of the positioning column 201 and fix the clamping plate 203 by the threaded rod 204 and the nut 205. At this time, the first scraper 207 and the second scraper 209 are located inside the curved material channel 107. One end of the second scraper 209 is in the guide groove 208 of the first scraper 207. The sliding rod 210 passes through the first through hole 214 and the second through hole 213. The spring 212 is sleeved on the sliding rod 210 and its two ends are respectively connected to the sliding disk 211 and the connecting plate 206. The spring 212 is in a natural or pre-compressed state. The buffering effect of spring 212 can reduce the impact force on the first scraper 207 and the second scraper 209 during the unblocking process, and reduce the wear of the first scraper 207, the second scraper 209 and the curved material channel 107.

[0039] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A coal bunker unblocking device, characterized in that, include: A blockage clearing box (100) is provided, on which an extrusion chamber (104) is fixedly fitted. The extrusion chamber (104) is connected to and communicates with two curved material channels (107). Two arc-shaped columns (200) are slidably fitted on the outer wall of the curved material channel (107). A retaining plate (203) is engaged with the outer wall of the arc-shaped column (200). A connecting plate (206) is fixedly fitted on the upper part of the retaining plate (203). A first scraper (207) is fixedly fitted on the connecting plate (206). A second scraper (209) is elastically and slidably fitted on one side of the first scraper (207). The second scraper (209) and the first scraper (207) are located inside the curved material channel (107).

2. The coal bunker unblocking device according to claim 1, characterized in that, The upper part of the unblocking box (100) is provided with a placement groove (101), an inclined groove (102) connected to the placement groove (101), a plurality of feed grooves (103) connected to the inclined groove (102), and two second discharge ports (113). The first end of the curved material channel (107) is connected to the second discharge port (113). The placement groove (101) is provided with a conveyor belt (115).

3. The coal bunker unblocking device according to claim 2, characterized in that, The extrusion chamber (104) has a second feed port (105) and two first discharge ports (106). The second end of the curved material channel (107) is connected to the first discharge port (106). The outer wall of the curved material channel (107) has an arc groove (108). The inner wall of the arc column (200) is located inside the arc groove (108).

4. The coal bunker unblocking device according to claim 1, characterized in that, A servo motor (110) is fixedly fitted on the unblocking box (100), and a spiral blade shaft (114) is fixedly fitted on the output end of the servo motor (110). A second discharge port (113) is opened on the unblocking box (100), and the end of the spiral blade shaft (114) is located inside the second discharge port (113). Two guide plates (112) are fixedly fitted inside the unblocking box (100), and an arc plate (111) is fixedly fitted between the two guide plates (112).

5. A coal bunker unblocking device according to claim 1, characterized in that, A positioning post (201) is fixedly fitted to the outer wall of the arc-shaped post (200). A slot (202) is provided on the positioning post (201). The lower end of the clamping plate (203) is located inside the slot (202). A threaded rod (204) is fixedly fitted to the lower end of the clamping plate (203). A nut (205) is threaded onto the threaded rod (204). The nut (205) is attached to the bottom of the positioning post (201).

6. The coal bunker unblocking device according to claim 1, characterized in that, The first scraper (207) has a first through hole (214) and a guide groove (208) connected to the first through hole (214), and one end of the second scraper (209) is located inside the guide groove (208).

7. A coal bunker unblocking device according to claim 6, characterized in that, A sliding rod (210) is fixedly fitted on the second scraper (209), and a second through hole (213) is provided on the connecting plate (206). The sliding rod (210) is located inside the first through hole (214) and the second through hole (213).

8. A coal bunker unblocking device according to claim 7, characterized in that, A sliding disc (211) is fixedly fitted at the end of the sliding rod (210) away from the connecting plate (206). A spring (212) is fixedly fitted between the sliding disc (211) and the connecting plate (206). The spring (212) is sleeved on the periphery of the sliding rod (210).