Novel coal drop pipe

By designing a new type of coal chute and utilizing the combination of support rods and belts, the problem of coal slurry sticking and clogging was solved, achieving efficient coal slurry transportation and simplified cleaning operations, thus reducing labor intensity.

CN224132092UActive Publication Date: 2026-04-17SHAANXI DEZHONG ELECTRIC MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI DEZHONG ELECTRIC MASCH CO LTD
Filing Date
2025-04-25
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the high viscosity of coal slurry entering the plant makes it prone to clogging, leading to frequent blockages in the conveyor belt coal chute, resulting in low cleaning efficiency, high labor intensity, and limited coal slurry blending ratio.

Method used

A novel coal chute is designed, comprising a receiving hopper and a discharge pipe. By utilizing the cooperation of a support rod and a belt, the support rod is placed in a slot, and the smoothness of the belt and the slight sway caused by the impact of the coal flow prevent the coal slime from having a fixed attachment point, allowing it to pass smoothly through the coal chute of the belt conveyor. The use of a limiting rod and a plug hole prevents the support rod from falling off.

Benefits of technology

It significantly improved the conveying effect of coal slime, reduced the degree of coal adhesion, simplified on-site operation, reduced the labor intensity of cleaning, and ensured the conveying capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The novel coal dropping pipe comprises a coal dropping pipe body and a supporting rod, the coal dropping pipe body is composed of a receiving hopper and a discharging pipe, a clamping groove is formed in the position, close to the edge, of the surface of the top of the receiving hopper, the supporting rod is placed in the clamping groove, and a belt is fixed to the circumferential side face of the supporting rod through a second fastener. The supporting rod and the belt are matched for use, when a belt conveyor conveys coal slime with poor fluidity, the coal sticking prevention device of the coal falling barrel of the belt is attached to the coal falling point side of a material receiving hopper in the coal flow direction, and the supporting rod is placed in a clamping groove of the material receiving hopper; by means of the characteristics that the surface of the belt is smooth and slightly swings along with coal flow impact, coal slime is free of fixed attachment points, smoothly passes through a coal falling barrel of the belt conveyor and is conveyed to a next-stage belt, the mode is easy to operate, the coal caking degree is remarkably improved after the device is used, field personnel can conveniently disassemble and assemble the device, and the conveying capacity is guaranteed. And the labor intensity for cleaning caking coal is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of coal chute technology, and in particular to a novel coal chute. Background Technology

[0002] Because the coal slurry entering the plant is generally characterized by high viscosity and easy clogging, during the blending process, the coal slurry in the conveyor belt chute becomes completely clogged and hardened within about 40 minutes of each dredging. Each coal cleaning takes 40 minutes, resulting in low efficiency and high labor intensity. The coal slurry blending ratio can only reach 8%, limiting the amount of coal slurry that can be blended. To address the bottleneck problem of how to "blend" the coal slurry, the approach was to start from the source. This included storing the slurry separately near the coal yard entrance for ventilation and drying, then dredging it layer by layer; using a self-made special tool to quickly clean the coal stuck in the corners around the inside of the chute; and using a self-made micro-water cleaning tool to inject a small amount of water into the stubborn coal to break down its adhesion and allow it to fall off naturally. A movable baffle was added to the head of the conveyor belt to change the coal drop point and reduce the adhesion area inside the chute. Although these measures improved the coal sticking in the chute, they still could not meet the requirements for the coal slurry blending ratio at different load periods and alleviate the intensity of manual coal cleaning.

[0003] Therefore, it is necessary to provide a new type of coal chute to solve the above-mentioned technical problems. Utility Model Content

[0004] This utility model provides a novel coal chute, which solves the problems in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a novel coal chute, including a coal chute body and a support rod. The coal chute body consists of a receiving hopper and a discharge pipe. A groove is formed on the top surface of the receiving hopper near the edge, and a support rod is placed inside the groove. A belt is fixed to the periphery of the support rod by a second fastener. A limit rod is vertically installed at the bottom of the groove. An insertion hole is formed through the surface of the support rod. By using the support rod and the belt in conjunction, when the belt conveyor is conveying coal slurry with poor flowability, the anti-coal sticking device of the belt coal chute is attached to the coal drop point side of the receiving hopper in the direction of coal flow. The support rod is placed in the groove of the receiving hopper. When the coal slurry enters the coal chute, the smooth surface of the belt and the slight sway caused by the impact of the coal flow prevent the coal slurry from having a fixed attachment point and allows it to pass smoothly through the coal chute of the belt conveyor to the next stage of the belt. This method is simple to operate, and the degree of coal sticking is significantly improved after using the device. It is also convenient for on-site personnel to install and disassemble, the conveying capacity is guaranteed, and the labor intensity of cleaning up sticky coal is reduced.

[0006] Preferably, the belt has a width of 900mm, a length of 1300mm, and a thickness of 8.5mm.

[0007] Preferably, the receiving hopper and the discharge pipe are provided with a fixing plate at their ends. The fixing plate has a fixing hole on its surface. The receiving hopper and the discharge pipe are fixed by a first fastener passing through the fixing hole. By providing the fixing plate, it is convenient to assemble and disassemble the receiving hopper and the discharge pipe.

[0008] Preferably, the inner width of the slot is greater than the outer diameter of the support rod, and the inner diameter of the insertion hole is greater than the outer diameter of the limiting rod. By setting the inner width of the slot to be greater than the outer diameter of the support rod and the inner diameter of the insertion hole to be greater than the outer diameter of the limiting rod, it is easier to provide the support rod with room to move, which is conducive to the vibration of the belt.

[0009] Preferably, the support rod is made of steel pipe. By making the support rod of steel pipe, it is easier to improve the compressive strength of the support rod and avoid bending under external force in the later stage.

[0010] Compared with related technologies, the novel coal chute provided by this utility model has the following beneficial effects:

[0011] Compared with existing technologies, this new type of coal chute features an anti-sticking device attached to the coal drop point of the receiving hopper in the direction of coal flow when the belt conveyor is transporting poorly flowing coal slurry. The support rod is placed in the slot of the receiving hopper. When the coal slurry enters the chute, the smooth surface of the belt and the slight swaying caused by the impact of the coal flow prevent the coal slurry from having a fixed attachment point and allows it to pass smoothly through the chute to the next belt. This method is simple to operate, significantly improves the degree of coal sticking after using the device, and is convenient for on-site personnel to install and disassemble. The conveying capacity is guaranteed, and the labor intensity of cleaning sticky coal is reduced. Furthermore, the use of a limit rod and a plug hole makes it easy to limit the vibration range of the support rod, preventing the support rod from falling out of the slot and ensuring normal operation.

[0012] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of a novel coal chute provided by this utility model;

[0014] Figure 2 A schematic diagram of a belt conveyor structure for a novel coal chute provided by this utility model;

[0015] Figure 3 A schematic diagram of a slot structure for a novel coal chute provided by this utility model;

[0016] Figure 4 A front view of a novel coal chute provided by this utility model.

[0017] Numbering on the map:

[0018] 1. Main body of coal chute; 2. Receiving hopper; 3. Discharge pipe; 4. Support rod; 5. Fixing plate; 6. First fastener; 7. Insertion hole; 8. Belt; 9. Second fastener; 10. Slot; 11. Limiting rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] First embodiment:

[0021] Please refer to the following: Figure 1-4 A novel coal chute includes a coal chute body 1 and a support rod 4. The coal chute body 1 consists of a receiving hopper 2 and a discharge pipe 3. A groove 10 is formed on the top surface of the receiving hopper 2 near its edge. The support rod 4 is placed inside the groove 10. A belt 8 is fixed to the periphery of the support rod 4 by a second fastener 9. A limit rod 11 is vertically installed at the bottom of the groove 10. A insertion hole 7 is formed through the surface of the support rod 4. By using the support rod 4 and the belt 8 together, when the belt 8 conveys fluid... When dealing with poor coal slime, the anti-sticking coal device of the coal drop hopper of belt 8 is attached to the side of the coal drop point of receiving hopper 2 in the direction of coal flow. The support rod 4 is placed in the slot 10 of receiving hopper 2. When the coal slime enters the coal drop hopper, the smooth surface of belt 8 and the slight swaying caused by the impact of the coal flow make the coal slime have no fixed attachment point and smoothly pass through the coal drop hopper of belt 8 and be conveyed to the next stage of belt 8. This method is simple to operate, and the degree of coal sticking is significantly improved after using the device. It is also convenient for on-site personnel to disassemble and assemble, the conveying capacity is guaranteed, and the labor intensity of cleaning sticky coal is reduced.

[0022] The working principle of the novel coal chute provided by this utility model is as follows:

[0023] This new type of coal chute, when conveying poorly flowing coal slurry on the belt conveyor 8, has its anti-sticking coal device attached to the coal drop point side of the receiving hopper 2 in the direction of coal flow. The support rod 4 is placed in the slot 10 of the receiving hopper 2. When the coal slurry enters the chute, the smooth surface of the belt conveyor 8 and the slight swaying caused by the impact of the coal flow prevent the coal slurry from having a fixed attachment point and allows it to pass smoothly through the chute of the belt conveyor 8 to the next stage of the belt conveyor 8. This method is simple to operate, and the degree of coal sticking is significantly improved after using this device. It is also convenient for on-site personnel to disassemble and assemble, ensuring the conveying capacity and reducing the labor intensity of cleaning sticky coal. Furthermore, the use of the limiting rod 11 and the insertion hole 7 facilitates the limitation of the vibration range of the support rod 4, preventing the support rod 4 from falling out of the slot 10 and ensuring normal operation.

[0024] Compared with related technologies, the novel coal chute provided by this utility model has the following beneficial effects:

[0025] By using the support rod 4 and belt 8 in conjunction, when belt 8 is conveying coal slurry with poor flowability, the anti-sticking coal device of the coal drop hopper of belt 8 is attached to the side of the coal drop point of receiving hopper 2 in the direction of coal flow. The support rod 4 is placed in the slot 10 of receiving hopper 2. When the coal slurry enters the coal drop hopper, the smooth surface of belt 8 and the slight swaying caused by the impact of the coal flow prevent the coal slurry from having a fixed attachment point and allows it to pass smoothly through the coal drop hopper of belt 8 and be conveyed to the next stage of belt 8. This method is simple to operate, and the degree of coal sticking is significantly improved after using the device. It is also convenient for on-site personnel to disassemble and assemble, the conveying capacity is guaranteed, and the labor intensity of cleaning sticky coal is reduced. Secondly, by using the limit rod 11 and the insertion hole 7 in conjunction, it is easy to limit the vibration range of the support rod 4 and prevent the support rod 4 from falling out of the slot 10, ensuring the normal operation of the work.

[0026] Second embodiment:

[0027] Please refer to the following: Figure 1-4 Based on the novel coal chute provided in the first embodiment of this application, the second embodiment of this application proposes another novel coal chute. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0028] Based on Example 1, see [link / reference] Figure 1-4 The belt 8 has a width of 900mm, a length of 1300mm, and a thickness of 8.5mm.

[0029] Based on Example 1, see [link / reference] Figure 1-4 The receiving hopper 2 and the discharge pipe 3 are provided with a fixing plate 5 at their ends. The fixing plate 5 has a fixing hole on its surface. The receiving hopper 2 and the discharge pipe 3 are fixed by the first fastener 6 passing through the fixing hole. By setting the fixing plate 5, it is convenient to assemble and disassemble the receiving hopper 2 and the discharge pipe 3.

[0030] Based on Example 1, see [link / reference] Figure 1-4 The inner width of the slot 10 is greater than the outer diameter of the support rod 4, and the inner diameter of the insertion hole 7 is greater than the outer diameter of the limiting rod 11. By setting the inner width of the slot 10 to be greater than the outer diameter of the support rod 4 and the inner diameter of the insertion hole 7 to be greater than the outer diameter of the limiting rod 11, it is easier to provide movement space for the support rod 4 and facilitate the vibration of the belt 8.

[0031] Based on Example 1, see [link / reference] Figure 1-4 The support rod 4 is made of steel pipe. By making the support rod 4 of steel pipe, it is easier to improve the compressive strength of the support rod 4 and avoid the phenomenon of bending under external force in the later stage.

[0032] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A new coal drop pipe comprising a coal drop pipe body (1) and a support rod (4), characterized in that, The main body (1) of the coal chute is composed of a receiving hopper (2) and a discharge pipe (3). A slot (10) is provided on the top surface of the receiving hopper (2) near the edge. A support rod (4) is placed inside the slot (10). A belt (8) is fixed to the periphery of the support rod (4) by a second fastener (9). A limit rod (11) is vertically installed at the bottom of the slot (10). A insertion hole (7) is provided through the surface of the support rod (4).

2. A new coal drop pipe as claimed in claim 1, wherein, The belt (8) has a width of 900mm, a length of 1300mm, and a thickness of 8.5mm.

3. A new type of coal drop pipe according to claim 1, characterized in that, The receiving hopper (2) and the discharge pipe (3) are provided with a fixing plate (5) at their ends. The fixing plate (5) has a fixing hole on its surface. The receiving hopper (2) and the discharge pipe (3) are fixed by a first fastener (6) passing through the fixing hole.

4. A new type of coal drop pipe according to claim 1, characterized in that, The inner width of the slot (10) is greater than the outer diameter of the support rod (4), and the inner diameter of the insertion hole (7) is greater than the outer diameter of the limiting rod (11).

5. A new type of coal drop pipe according to claim 1, characterized in that, The support rod (4) is made of steel pipe.