Intelligent anti-collapse early warning system for coal bunker

Abstract

An intelligent collapse prevention early warning system for a coal bunker comprises the coal bunker, a water accumulation tank is fixedly connected to a discharging port of the coal bunker, a discharging chute is fixedly connected to the bottom of the water accumulation tank, and an electric loading gate is rotationally connected to the outer wall of the discharging chute. The electric loading gate is connected with a valve motor which is used for controlling the electric loading gate to rotate and further opening or closing the discharge port of the unloading chute; a coal blocking plate is arranged in an inner cavity of the water accumulation tank, a liquid level cavity is formed by the coal blocking plate and the inner wall of the water accumulation tank, a liquid inlet gap is formed between the coal blocking plate and the bottom of the water collection tank, and a liquid level sensor is installed in the liquid level cavity and electrically connected with an early warning feedback system. When the coal bunker is not opened for a long time, the coal in the coal bunker is arched or the water-containing coal is increased, water in the coal bunker flows into the detection device, the water level condition of the discharge port of the coal bunker is monitored in real time, the bunker break early warning is given out according to the water level condition, and the coal bunker is prevented from being broken. And casualties are avoided.

Description

Technical Field

[0001] The utility model relates to the field of coal mines, in particular to an intelligent coal bunker collapse prevention early warning system. Background Art

[0002] The mining industry structure is constantly adjusted and optimized, and large-scale modern coal mines with intelligent and high safety levels have become the direction of development of the coal industry. Due to the special nature of coal itself, safety in coal bunker storage is particularly important.

[0003] Although coal bunker anti-burst equipment has been widely used in thermal power plants, coal mines, coal preparation plants and coking plants, its application effect is not ideal. The reason is that this type of equipment has a low level of intelligence. When the coal bunker is arched or has a high water content, it is impossible to make a judgment on the coal bunker burst accident in advance and issue a warning signal. At this time, suddenly opening the gate is very likely to cause a bunker burst accident. In addition, it is necessary to arrange staff to operate the anti-burst equipment. When the anti-burst gate is opened manually at close range, when a bunker burst accident occurs, the impact and overflow of the coal flow may cause uncontrollable injuries to the surrounding staff, which is extremely dangerous. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an intelligent coal bunker collapse prevention warning system to solve the technical problems raised in the above-mentioned background technology.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] An intelligent coal bunker collapse prevention warning system comprises a coal bunker, wherein a water storage tank is fixedly connected to the discharge port of the coal bunker, a discharge chute is fixedly connected to the bottom of the water storage tank, an electric loading gate is rotatably connected to the outer wall of the discharge chute, and the electric loading gate is connected to a valve motor for controlling the rotation of the electric loading gate and further opening or closing the discharge port of the discharge chute; a coal baffle plate is provided in the inner cavity of the water storage tank, a liquid level cavity is formed between the coal baffle plate and the inner wall of the water storage tank, a liquid inlet gap is formed between the coal baffle plate and the bottom of the water collecting tank, a liquid level sensor is installed in the liquid level cavity, the liquid level sensor is electrically connected to a warning feedback system, and the warning feedback system is electrically connected to an audible and visual alarm and a control panel of the valve motor, respectively.

[0007] In the above-mentioned utility model, further, the electric loading gate includes a steel frame and a discharge nozzle arranged at the front end of the steel frame and rotatably connected to the outer wall of the unloading chute, and an arc-shaped sealing plate is arranged between the steel frame and the discharge nozzle, which cooperates with the discharge port of the unloading chute and is used to close the discharge port of the unloading chute.

[0008] In the above utility model, further, a pull rod is fixedly installed on the outer wall of the coal bunker, a pulley is fixedly connected to the pull rod, a winch is connected to the valve motor, a steel rope is wound on the winch, and the free point of the steel rope passes around the pulley and is connected to the steel frame.

[0009] In the above utility model, further, a counterweight block is arranged on the steel frame.

[0010] In the above utility model, further, a flange is provided at the bottom of the water storage tank, and the discharge chute is fixedly installed at the bottom of the water storage tank through the flange.

[0011] In the above utility model, further, the water storage tank is fixedly connected to the outer wall of the coal bunker by bolts.

[0012] In the above utility model, further, a water drainage outlet is provided at the bottom of the liquid level cavity.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides an intelligent coal bunker anti-collapse warning system, the operating environment of which is that the electric loading gate at the coal bunker discharge port is in a long-term closed state. When the coal bunker is not opened for a long time, the coal in the bunker is arched or the water content of the coal increases. At this time, the water in the coal bunker flows into the detection device, and the change of the water level at the coal bunker outlet is detected by the material level sensor, the possibility of coal bunker collapse is predicted, and the signal is transmitted to the control system to control the opening and closing degree of the coal bunker gate, so as to solve the problem that there is no early warning before the coal bunker collapses, and the gate is suddenly opened to cause casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is the control principle diagram of the early warning feedback system of the utility model;

[0017] Figure 3 for Figure 1 A partial enlarged view of part A;

[0018] Figure 4 for Figure 1 A partial enlarged view of part B;

[0019] Figure 5 This is a schematic diagram of the structure of the electric loading gate of the utility model.

[0020] In the figure, 1-coal bunker, 2-liquid level sensor, 3-water tank, 4-coal baffle, 5-unloading chute, 6-electric loading gate, 7-sound and light alarm, 8-valve motor, 9-steel rope, 10-flange, 11-alarm feedback system, 12-liquid level chamber, 13-liquid inlet gap, 14-pull rod, 15-pulley, 6.1-steel frame, 6.2-arc sealing plate, 6.3-discharging nozzle, 6.4-counterweight. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0023] Example:

[0024] A coal bunker intelligent anti-collapse warning system comprises a coal bunker 1, wherein a water storage tank 3 is fixedly connected at the discharge port of the coal bunker 1, and a discharge chute 5 is fixedly connected to the bottom of the water storage tank 3. Specifically, a flange 10 is provided at the bottom of the water storage tank 3, and the discharge chute 5 is fixedly installed at the bottom of the water storage tank 3 through the flange 10. An electric loading gate 6 is rotatably connected to the outer wall of the discharge chute 5, and the electric loading gate 6 is connected to a valve motor 8 for controlling the rotation of the electric loading gate 6 and further opening or closing the discharge port of the discharge chute 5; a coal baffle plate 4 is provided in the inner cavity of the water storage tank 4, and a liquid level cavity 12 is formed between the coal baffle plate 4 and the inner wall of the water storage tank 3, and a liquid inlet gap 13 is formed between the coal baffle plate 4 and the bottom of the water collection tank 3, and a liquid level sensor 2 is installed in the liquid level cavity 12, and the liquid level sensor 2 is electrically connected to a warning feedback system 11, and the warning feedback system 11 is electrically connected to an audible and visual alarm 7 and a control panel of the valve motor 8, respectively.

[0025] In the specific implementation process, when the electric loading gate 6 is in a closed state for a long time, the coal in the coal bunker 1 is arched or the water content of the coal increases. At this time, the water in the coal bunker 1 flows into the liquid level cavity 12 through the liquid inlet gap 13. The liquid inlet gap 13 not only allows water to enter the liquid level cavity 12, but also prevents larger coal blocks from entering the liquid level cavity 12. When the water level in the liquid level cavity 12 reaches the preset value of the liquid level sensor 2, it indicates that the coal bunker may be in danger of collapse. The electrical signal of the liquid level sensor 2 is sent to the early warning feedback system 11, and the early warning feedback system 11 controls the sound and light alarm 7 to send a warning alarm signal to prevent the staff from suddenly opening the gate and causing casualties.

[0026] Embodiment 2:

[0027] In this embodiment, the electric loading gate 6 comprises a steel frame 6.1 and a discharge nozzle 6.3 provided at the front end of the steel frame 6.1 and rotatably connected to the outer wall of the discharge chute 5, and an arc-shaped sealing plate 6.2 is provided between the steel frame 6.1 and the discharge nozzle 6.3, which cooperates with the discharge port of the discharge chute 5 and is used to close the discharge port of the discharge chute 5. A pull rod 14 is fixedly installed on the outer wall of the coal bunker 1, a pulley 15 is fixedly connected to the pull rod 14, a winch is connected to the valve motor 8, a steel rope 9 is wound around the winch, the free point of the steel rope 9 passes around the pulley 15 and is connected to the steel frame 6.1, and a counterweight 6.4 is arranged on the steel frame 6.1. When the discharge operation is not performed, the electric loading gate 6 rotates counterclockwise under the action of the counterweight block 6.4, and the discharge nozzle 6.3 rotates counterclockwise at the same time and is staggered with the discharge port of the discharge chute 5. The arc-shaped sealing plate 6.2 is aligned with the discharge port of the discharge chute 5 and closes the discharge port of the discharge chute 5. When the early warning feedback system 11 receives the burst signal of the liquid level sensor 2, the early warning feedback system 11 controls the valve motor 8 to tighten the steel rope 9, and the steel rope 9 pulls the steel frame 6.1 upward, and the discharge port of the discharge chute 5 is opened to a certain extent, and the accumulated water in the coal bunker 1 is discharged to prevent the occurrence of a burst. When the accumulated water is discharged, the valve motor 8 loosens the steel rope 9, and the electric loading gate 6 closes the discharge port of the discharge chute 5 again under the action of the counterweight block 6.4. More specifically, when the discharge operation is required, if the system is in an alarm state, the staff is prompted to leave the vicinity of the discharge port first to prevent the impact of the coal flow and the overflow from causing uncontrollable damage to the surrounding staff. Secondly, during the discharge process, the early warning feedback system 11 controls the discharge port of the discharge chute 5 to open to a certain extent, delays for a certain period of time until the coal flow in the coal bunker is normal, and then controls the electric loading gate 6 to open normally to discharge the material, thereby reducing the instantaneous impact on the receiving device below the discharge port of the discharge chute 5, thereby protecting the receiving device.

[0028] In this embodiment, the water storage tank 3 is preferably fixedly connected to the outer wall of the coal bunker 1 by bolts, so that the water storage tank 3 can be replaced when it is damaged. Secondly, a water drainage port (not shown in the figure) is provided at the bottom of the liquid level cavity 12 to discharge the coal sludge in the liquid level cavity 12.

[0029] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An intelligent coal bunker collapse prevention warning system, comprising a coal bunker, characterized in that: A water storage tank is fixedly connected to the discharge port of the coal bunker, a discharge chute is fixedly connected to the bottom of the water storage tank, an electric loading gate is rotatably connected to the outer wall of the discharge chute, and the electric loading gate is connected to a valve motor for controlling the rotation of the electric loading gate and further opening or closing the discharge port of the discharge chute; a coal baffle plate is provided in the inner cavity of the water storage tank, a liquid level cavity is formed between the coal baffle plate and the inner wall of the water storage tank, a liquid inlet gap is formed between the coal baffle plate and the bottom of the water collecting tank, a liquid level sensor is installed in the liquid level cavity, the liquid level sensor is electrically connected to an early warning feedback system, and the early warning feedback system is electrically connected to the sound and light alarm and the control panel of the valve motor respectively.

2. The intelligent coal bunker collapse prevention warning system according to claim 1 is characterized in that: The electric loading gate includes a steel frame and a discharge nozzle arranged at the front end of the steel frame and rotatably connected to the outer wall of the discharge chute. An arc-shaped sealing plate is arranged between the steel frame and the discharge nozzle, which cooperates with the discharge port of the discharge chute and is used to close the discharge port of the discharge chute.

3. The intelligent coal bunker collapse prevention warning system according to claim 2 is characterized in that: A pull rod is fixedly installed on the outer wall of the coal bunker, a pulley is fixedly connected to the pull rod, a capstan is connected to the valve motor, a steel rope is wound around the capstan, and the free point of the steel rope passes around the pulley and is connected to the steel frame.

4. The intelligent coal bunker collapse prevention warning system according to claim 2 is characterized in that: A counterweight is arranged on the steel frame.

5. The intelligent coal bunker collapse prevention warning system according to claim 1 is characterized in that: A flange is provided at the bottom of the water storage tank, and the discharge chute is fixedly installed at the bottom of the water storage tank through the flange.

6. The intelligent coal bunker collapse prevention warning system according to claim 1 is characterized in that: The water storage box is fixedly connected to the outer wall of the coal bunker by bolts.

7. The intelligent coal bunker collapse prevention warning system according to claim 1 is characterized in that: A water drainage outlet is arranged at the bottom of the liquid level cavity.

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