Safe coal bunker capable of preventing bunker collapse

Abstract

The utility model relates to the technical field of coal mine safety, in particular to a safe coal bunker capable of preventing bunker collapse, which comprises a coal bunker body and a cross beam arranged on the coal bunker body, a steel wire rope is mounted on the cross beam, and the other end of the steel wire rope extends to the lower outlet end of the coal bunker body. The coal bunker body is of an inverted-cone-shaped structure, an avoiding opening is formed in the inner wall of the coal bunker body, a splash-proof plate is arranged in the avoiding opening in a sliding mode, in the using process, when the alarming water amount is detected, a hydraulic cylinder is started to enable the output end of the hydraulic cylinder to stretch out, and a hinge head drives an overturning piece to overturn so that an upper baffle can be buckled to a lower baffle; after accumulated water is drained, the upper baffle is driven by the driving mechanism to synchronously rotate in a reciprocating mode in the area of the lower outlet end of the coal bunker body, and the stored coal possibly accumulated is ejected to be scattered and separated; therefore, the situation that the stored coal in the accumulation area is suspended but does not fall is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine safety, in particular to a safety coal bunker for preventing bunker bursting. Background Technique

[0002] The safe production of coal and energy conservation and emission reduction are closely related. Once accidents such as gas explosion and bunker bursting occur during the coal production process, it will cause great pollution to the environment and waste of coal energy. The occurrence of bunker bursting is mainly due to a large amount of water-containing coal accumulated in the coal bunker. When the coal feeder discharges coal, a large amount of coal and accumulated water in the coal bunker gush out instantly. The existing technology usually adopts the method of setting a baffle at the lower end of the bunker body to block the materials and prevent the materials from continuing to burst out of the bunker body.

[0003] For example, the Chinese patent with the application number CN202021564184.1 discloses a mechanical device for preventing bunker bursting of a coal bunker or a gangue bunker, which includes a baffle rotatably arranged in front of the material discharging port of the bunker body through a rotating shaft and an operating mechanism for driving the baffle to rotate around the rotating shaft. The rotating shaft is horizontally arranged and extends perpendicular to the material conveying direction. It uses the baffle to block the materials conveyed by the feeder to prevent the materials from continuing to burst out of the bunker body and avoid the occurrence of bunker bursting accidents. However, only by blocking to prevent bunker bursting, in the blocked outlet end area, the accumulation of stored coal often occurs. When the coal bunker is opened again and the coal at the lower part is emptied, the stored coal in the accumulation area hangs without falling. If no artificial intervention measures are taken, the suspended coal will not fall for a long time, resulting in the coal bunker being filled and the transportation system being forced to interrupt. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a safety coal bunker for preventing bunker bursting to solve the technical problem that in the prior art, only by blocking to prevent bunker bursting, the accumulation of stored coal often occurs in the blocked outlet end area.

[0005] Based on the above purpose, the present utility model provides a safety coal bunker for preventing bunker bursting, which includes a coal bunker body and a cross beam arranged on the coal bunker body. A steel wire rope is installed on the cross beam, and the other end of the steel wire rope extends to the lower outlet end of the coal bunker body. The coal bunker body is of an inverted conical structure and an avoidance opening is provided on the inner wall. A splash-proof plate is slidably arranged in the avoidance opening. The safety coal bunker further includes:

[0006] A guiding cylinder, which is connected to the lower outlet end of the coal bunker body;

[0007] A lower baffle, which is arranged at the lower outlet end of the coal bunker body through a mounting rack. A material passing opening is provided on the lower baffle, and water immersion sensors extending to the material passing opening are arranged on both sides of the lower baffle;

[0008] The upper baffle, the upper baffle cooperates with the lower baffle and is installed on the mounting frame through a driving mechanism, and is placed inside the coal bunker body.

[0009] Further, the driving mechanism includes:

[0010] A hydraulic cylinder, the hydraulic cylinder is installed on the mounting frame, and a hinge joint is installed at the output end of the hydraulic cylinder;

[0011] A turning member, the middle part of the turning member is hinged to the mounting frame, one end of the turning member is hinged to the hinge joint, and the other end of the turning member passes through the avoidance opening and is fixedly connected to the upper baffle.

[0012] Further, the upper end of the turning member abuts against the lower end of the splash-proof plate.

[0013] Further, bolt fixing holes are provided on both sides of the lower baffle, and the detection electrodes of the two water immersion sensors are fixed in the bolt fixing holes through expansion bolts.

[0014] Further, a protective base is provided at the lower part of the coal bunker body.

[0015] Further, the guiding cylinder is of a bent structure, and the outlet end of the guiding cylinder is fixedly connected to the protective base.

[0016] Further, the upper baffle is evenly distributed with ramming rods, and a plurality of the ramming rods are detachably connected to the upper baffle.

[0017] The beneficial effects of the present utility model: When using a safety coal bunker for preventing coal bunker collapse of the present utility model, when the water volume of the alarm is detected, the hydraulic cylinder is started to extend its output end, and the turning member is driven to turn through the hinge joint, so that the upper baffle is buckled on the lower baffle, thereby automatically closing the lower outlet end of the coal bunker body to prevent the stored coal from continuing to burst out of the bunker body. After the accumulated water is discharged, the upper baffle is driven by the driving mechanism to perform synchronous reciprocating rotation in the area of the lower outlet end of the coal bunker body, and the stored coal that may accumulate is pushed and separated, so as to avoid the situation that the stored coal in the accumulation area hangs without falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of a perspective view of the present utility model;

[0020] Figure 2 It is a schematic structural view from another perspective of the present utility model;

[0021] Figure 3 It is a schematic structural view of the coal bunker body in the present utility model;

[0022] Figure 4 It is an assembly schematic view of the driving mechanism, the lower baffle and the upper baffle in the present utility model.

[0023] The markings in the figure are:

[0024] 1. Coal bunker body; 2. Cross beam; 3. Steel wire rope; 4. Splash guard; 5. Guide tube; 6. Lower baffle; 7. Mounting bracket; 8. Feeding port; 9. Water immersion sensor; 10. Upper baffle; 11. Hydraulic cylinder; 12. Hinge joint; 13. Flipping member; 14. Protective base; 15. Tamping rod. Specific embodiments

[0025] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the present utility model in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not denote any sequence, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0027] In the first aspect of the present utility model, a safety coal bunker for preventing bunker collapse is proposed, as Figures 1-4 shown, including a coal bunker body 1 and a cross beam 2 provided on the coal bunker body 1. A steel wire rope 3 is installed on the cross beam 2, and the other end of the steel wire rope 3 extends to the lower outlet end of the coal bunker body 1. The coal bunker body 1 is of an inverted conical structure and has an avoidance opening on its inner wall. A splash guard 4 is slidably provided in the avoidance opening. The safety coal bunker further includes:

[0028] A guide tube 5, which is connected to the lower outlet end of the coal bunker body 1;

[0029] Lower baffle 6, the lower baffle 6 is arranged at the lower outlet end of the coal bunker body 1 through the mounting frame 7. A material passing opening 8 is provided on the lower baffle 6, and water immersion sensors 9 extending to the material passing opening 8 are arranged on both sides of the lower baffle 6;

[0030] Upper baffle 10, the upper baffle 10 is cooperated with the lower baffle 6 and installed on the mounting frame 7 through a driving mechanism, and is placed inside the coal bunker body 1.

[0031] In this embodiment, the driving mechanism includes:

[0032] Hydraulic cylinder 11, the hydraulic cylinder 11 is installed on the mounting frame 7, and a hinge joint 12 is installed at the output end of the hydraulic cylinder 11;

[0033] Flipping member 13, the middle part of the flipping member 13 is hinged to the mounting frame 7, one end of the flipping member 13 is hinged to the hinge joint 12, and the other end of the flipping member 13 penetrates through the avoidance opening and is fixedly connected to the upper baffle 10.

[0034] In this embodiment, during use, the stored coal is placed in the coal bunker body 1. The steel wire rope 3 arranged on the cross beam 2 is used to enhance the dredging effect of the stored coal. The water immersion sensor 9 collects the inductance parameters of the accumulated water in the coal bunker body 1. A contact type water immersion sensor is selected. When it works normally, its two pole probes are insulated by air, while the probes are conducting in the water immersion state, so as to detect the presence of water, which meets the production environment in the coal bunker. When the warning water volume is detected, the hydraulic cylinder 11 is started to make its output end extend, and the flipping member 13 is driven to flip through the hinge joint 12, so that the upper baffle 10 is buckled on the lower baffle 6, and then the lower outlet end of the coal bunker body 1 is automatically closed to prevent the stored coal from continuing to pour out of the bin body. After the accumulated water is discharged, the hydraulic cylinder 11 is started again to make its output end extend and retract reciprocally, driving the upper baffle 10 to rotate reciprocally synchronously in the area of the lower outlet end of the coal bunker body 1, and cooperating with the steel wire rope 3 to jointly separate and disperse the possibly accumulated stored coal. Finally, the output end of the hydraulic cylinder 11 is in the reset return state to ensure that the stored coal smoothly falls into the guiding cylinder 5 from the material passing opening 8.

[0035] In this embodiment, as Figure 4 shown, the upper baffle 10 is evenly provided with ramming rods 15, and several ramming rods 15 and the upper baffle 10 are detachably connected, and the separation effect of the possibly accumulated stored coal is enhanced through several ramming rods 15.

[0036] In this embodiment, as Figure 4 shown, the upper end of the flipping member 13 abuts against the lower end of the splash guard 4, so that the splash guard 4 can continuously block the avoidance opening on the coal bunker body 1 to prevent the stored coal from leaking out from the side wall of the coal bunker.

[0037] In this embodiment, as Figure 4As shown, bolt fixing holes are provided on both sides of the lower baffle 6, and the detection electrodes of the two water immersion sensors 9 are fixed in the bolt fixing holes through expansion bolts.

[0038] In this embodiment, as Figure 1 , Figure 2 shown, a protective base 14 is provided at the lower part of the coal bunker body 1, the guiding cylinder 5 is of a bent structure, and the outlet end of the guiding cylinder 5 is fixedly connected to the protective base 14, increasing the conveying path of the stored coal so as to facilitate the further separation of the stored coal and the accumulated water.

[0039] Those of ordinary skill in the art should understand that: the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0040] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A safety coal bunker for preventing bunker collapse, comprising a coal bunker body (1) and a cross beam (2) provided on the coal bunker body (1), a steel wire rope (3) is installed on the cross beam (2), and the other end of the steel wire rope (3) extends to the lower outlet end of the coal bunker body (1), characterized in that, The coal bunker body (1) is of an inverted conical structure and has an avoidance opening on its inner wall. A splash-proof plate (4) is slidably arranged in the avoidance opening. The safety coal bunker further includes: A guiding cylinder (5), which is connected to the lower outlet end of the coal bunker body (1); A lower baffle (6), which is arranged at the lower outlet end of the coal bunker body (1) through a mounting frame (7). A material passing opening (8) is formed on the lower baffle (6), and water immersion sensors (9) extending to the material passing opening (8) are arranged on both sides of the lower baffle (6); An upper baffle (10), which is matched with the lower baffle (6) and is installed on the mounting frame (7) through a driving mechanism and is placed inside the coal bunker body (1).

2. The safety coal bunker for preventing bunker collapse according to claim 1, wherein, The driving mechanism includes: A hydraulic cylinder (11), which is installed on the mounting frame (7). A hinge joint (12) is installed at the output end of the hydraulic cylinder (11); A turning member (13), the middle of which is hinged to the mounting frame (7). One end of the turning member (13) is hinged to the hinge joint (12), and the other end of the turning member (13) penetrates through the avoidance opening and is fixedly connected to the upper baffle (10).

3. The safety coal bunker for preventing bunker collapse according to claim 2, characterized in that, The upper end of the turning member (13) abuts against the lower end of the splash-proof plate (4).

4. A safety coal bunker for preventing bunker collapse according to claim 1, characterized in that, Bolt fixing holes are arranged on both sides of the lower baffle (6), and the detection electrodes of the two water immersion sensors (9) are fixed in the bolt fixing holes through expansion bolts.

5. The safety coal bunker for preventing bunker collapse according to claim 1, characterized in that, A protective base (14) is arranged at the lower part of the coal bunker body (1).

6. The safety coal bunker for preventing bunker collapse according to claim 5, characterized in that, The guiding cylinder (5) is of a bent structure, and the outlet end of the guiding cylinder (5) is fixedly connected to the protective base (14).

7. The safety coal bunker for preventing bunker collapse according to claim 1, characterized in that, Pounding rods (15) are evenly distributed on the upper baffle (10), and a plurality of the pounding rods (15) are detachably connected to the upper baffle (10).

Images