Anti-scour bag with coal-water separation and rapid positioning functions

Abstract

The utility model discloses an anti-scour bag with coal-water separation and rapid positioning, which comprises a bag body, a folding framework, a first filter screen, a second filter screen, a pressure sensor, a controller and a warning lamp, and the folding framework can drive the bag body to be in a folding or unfolding state; the first filter screen and the second filter screen are arranged in the bag body and are used for realizing coal-water separation when the gas is sprayed into the hole; a water guide hole with a sealing plug is formed in the lower part of the bag body and is used for discharging water after coal-water separation out of the bag body; the pressure sensor is arranged on the surface of the first filter screen and is used for acquiring a real-time pressure value during gas hole spraying and feeding back the real-time pressure value to the controller; the controller receives and stores the real-time pressure value fed back by the pressure sensor and controls the warning lamp to be turned on and turned off according to the real-time pressure value. According to the coal-water separation device, the buffering protection function can be achieved during gas hole spraying, coal-water separation can be conducted on a mixture of coal powder and water, meanwhile, a prompt can be given out during hole spraying, and a worker can conveniently and rapidly position the position of a spraying hole in time.

Description

Technical Field

[0001] The utility model relates to an anti-blowout bag, in particular to an anti-blowout bag with coal-water separation and rapid positioning functions, belonging to the technical field of mine blowout prevention holes. Background Art

[0002] Gas disasters are one of the major threats to coal mine safety. With the increase in the depth of coal seam mining, hydraulic fracturing and other technologies are needed to increase the permeability of coal seams. In recent years, the "integrated blasting and injection" technology has been proposed, which improves the permeability efficiency of coal seams. Based on this, the industry has proposed new sealing devices and methods, but the borehole may be affected by ground stress and gas blowouts may occur. In order to protect against this situation, the current method of connecting anti-blowout bags to the outside of the borehole is used to achieve buffering when gas bursts. However, the existing anti-blowout bags only have a buffering function. Since the gas will also carry a mixture of coal powder and water when it is ejected from the borehole, the existing anti-blowout bags cannot separate coal and water, and need to be processed separately later, which is more troublesome; in addition, since there are multiple boreholes in the tunnel, the staff cannot know in time when a blowout occurs in any of the boreholes, resulting in the inability to take corresponding measures against the blowout in time.

[0003] Therefore, how to provide a new anti-collision bag that can effectively solve the above-mentioned technical problems is one of the research directions of this industry. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides an anti-collision bag with coal-water separation and rapid positioning, which can not only have a buffering and protective effect when a gas blowhole occurs, but also can separate the mixture of coal powder and water from the coal powder, and at the same time can issue a prompt when the blowhole occurs, so that the staff can quickly locate the blowhole position in time.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: an anti-collision bag with coal-water separation and rapid positioning, including a bag body, a folding frame, a first filter screen, a second filter screen, a pressure sensor, a controller and a warning light, an opening is provided on the upper part of the bag body, and the folding frame is installed in the bag body, and can drive the bag body to be in a folded or unfolded state;

[0006] The first filter screen and the second filter screen are both installed in the bag body, and the first filter screen is closer to the opening of the bag body than the second filter screen, and is used to achieve coal-water separation when the gas is sprayed; the lower part of the bag body is provided with a water guide hole with a sealing plug, which is used to discharge the water after the coal-water separation out of the bag body;

[0007] The pressure sensor is mounted on the surface of the first filter screen and is used to obtain the real-time pressure value when the gas is sprayed and feed it back to the controller;

[0008] The controller and the warning light are both installed outside the bag body. The controller receives the real-time pressure value fed back by the pressure sensor for storage, and controls the turning on and off of the warning light according to the real-time pressure value.

[0009] Furthermore, the bag body, the first filter screen and the second filter screen are all made of elastic material, so that the anti-collision bag has a better buffering effect.

[0010] Furthermore, the folding frame is composed of a plurality of support rods hinged to each other. The use of this existing structure makes the folding frame more stable when it is unfolded with buffering.

[0011] Furthermore, the controller is provided with an explosion-proof battery for supplying power to the controller, the pressure sensor and the warning light.

[0012] Furthermore, the mesh number of the first filter is smaller than the mesh number of the second filter. In this structure, when the spray hole occurs, the first filter retains the coal particles with a larger particle size, and the second filter retains the coal particles with a smaller particle size, thereby realizing a two-stage coal-water separation process and ensuring the effect of coal-water separation.

[0013] Compared with the prior art, the utility model adopts a combination of a bag body, a folding frame, a first filter screen, a second filter screen, a pressure sensor, a controller and a warning light, which has the following advantages:

[0014] 1. The utility model adopts a first filter and a second filter. When a gas spray hole occurs, the sprayed coal powder and water mixture first passes through the first filter to retain coal particles with larger particle sizes, and then passes through the second filter to retain coal particles with smaller particle sizes, thereby realizing a two-stage coal-water separation process and ensuring the effect of coal-water separation.

[0015] 2. The utility model is equipped with a pressure sensor, a controller and a warning light. The pressure sensor collects the pressure value in real time and feeds it back to the controller. The controller compares the real-time pressure value with the threshold value. If it exceeds the threshold value, the warning light will emit an audible and visual prompt. At this time, the staff can locate the position of the spray hole in time and take corresponding measures to ensure the safety in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the folding state of the folding frame in the utility model;

[0018] Figure 3 It is a schematic diagram of the unfolded state of the folding frame in the utility model.

[0019] In the figure: 1-bag body, 2-folding frame, 3-first filter screen, 4-second filter screen, 5-pressure sensor, 6-warning light, 7-water guide hole. DETAILED DESCRIPTION

[0020] The utility model will be further described below.

[0021] like Figure 1 As shown, the utility model includes a bag body 1, a folding frame 2, a first filter screen 3, a second filter screen 4, a pressure sensor 5, a controller and a warning light 6. The upper part of the bag body 1 is provided with an opening, and the folding frame 2 is installed in the bag body 1 and can drive the bag body 1 to be in a folded or unfolded state; the bag body 1, the first filter screen 3 and the second filter screen 4 are all made of elastic materials (such as rubber). This makes the anti-collision bag have a better buffering effect; Figure 2 and 3 As shown, the folding frame 2 is composed of a plurality of support rods hinged to each other. The use of this existing structure makes the folding frame 2 more stable when it is unfolded with buffering.

[0022] The first filter screen 3 and the second filter screen 4 are both installed in the bag body 1, and the first filter screen 3 is closer to the opening of the bag body 1 than the second filter screen 4, and is used to achieve coal-water separation when the gas is sprayed; the lower part of the bag body 1 is provided with a water guide hole 7 with a sealing plug, which is used to discharge the water after the coal-water separation from the bag body 1; the mesh number of the first filter screen 3 is 50-100 meshes, and the mesh number of the second filter screen 4 is 150-200 meshes. This structure retains coal particles with larger particle sizes on the first filter screen 3 when the spray hole occurs, and retains coal particles with smaller particle sizes on the second filter screen 4, thereby realizing a two-stage coal-water separation process and ensuring the effect of coal-water separation.

[0023] The pressure sensor 5 is mounted on the surface of the first filter 3 and is used to obtain the real-time pressure value when the gas is sprayed and feed it back to the controller;

[0024] The controller and the warning light 6 are both installed outside the bag body 1. The controller receives the real-time pressure value fed back by the pressure sensor 5 for storage, and controls the opening and closing of the warning light 6 according to the real-time pressure value. The controller is provided with an explosion-proof battery for powering the controller, the pressure sensor 5 and the warning light 6.

[0025] The bag body 1, folding frame 2, pressure sensor 5, controller, explosion-proof battery, warning light 6, first filter 3 and second filter 4 are all existing components or devices, which can be directly purchased on the market; and the process of the controller controlling the opening and closing of the warning light 6 is an existing technology.

[0026] During operation, a device of the utility model is installed at each drilling hole in the tunnel, so that the opening of the bag body 1 faces the drilling hole, and the folding frame 2 and the bag body 1 are in a folded state at the beginning. In order to ensure the stability of the folded state at the beginning, a spring buckle or clip can be installed on the bag body to maintain the folded state, and the force applied by the spring buckle or clip is small. Once a spray hole occurs, the spring buckle or clip will be forced to open and fall off under the influence of the impact force, so that the bag body 1 and the folding frame 2 are opened smoothly; at the same time, the water guide hole 7 is in a blocked state; then the pressure threshold is set in the controller to complete the installation preparation;

[0027] The staff conducts inspections along the tunnel. When a gas outburst or blowout occurs in a borehole in the tunnel, the gas carrying a mixture of coal powder and water sprays out from the borehole to the bag body 1. The bag body 1 and the folding frame 2 are affected by the impact force and change from a folded state to an unfolded state to buffer the impact force. At the same time, the mixture of coal powder and water impacts the first filter screen 3. At this time, the pressure sensor 5 feeds back the collected pressure value to the controller in real time. The controller compares the real-time pressure value with the pressure threshold. If the real-time pressure value exceeds the threshold, the controller controls the warning light 6 to turn on and emit a warning light, so that the staff can quickly Locate the drilling position where the spray hole occurs, and take corresponding treatment measures in time; in addition, the sprayed coal powder and water mixture first passes through the first filter 3 to retain the coal particles with larger particle size, and then passes through the second filter 4 to retain the coal particles with smaller particle size, thereby realizing a two-stage coal-water separation process and ensuring the effect of coal-water separation; the filtered water is in the lower part of the bag body 1; when the spray hole is completed, the staff removes the sealing plug to open the water guide hole 7, at which time the water in the bag body 1 can be collected and weighed; finally, the bag body 1 is removed, and the coal particles on the two filters are collected and weighed, so as to obtain the weight of the coal and water sprayed from this spray hole, which is convenient for subsequent research.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-collision bag with coal-water separation and rapid positioning, comprising a bag body and a folding frame, the upper part of the bag body is provided with an opening, the folding frame is installed in the bag body, and can drive the bag body to be in a folded or unfolded state, characterized in that: Also includes a first filter, a second filter, a pressure sensor, a controller and a warning light; The first filter screen and the second filter screen are both installed in the bag body, and the first filter screen is closer to the opening of the bag body than the second filter screen, and is used to achieve coal-water separation when the gas is sprayed; the lower part of the bag body is provided with a water guide hole with a sealing plug, which is used to discharge the water after the coal-water separation out of the bag body; The pressure sensor is mounted on the surface of the first filter screen and is used to obtain the real-time pressure value when the gas is sprayed and feed it back to the controller; The controller and the warning light are both installed outside the bag body. The controller receives the real-time pressure value fed back by the pressure sensor for storage, and controls the turning on and off of the warning light according to the real-time pressure value.

2. The anti-collision bag with coal-water separation and rapid positioning according to claim 1, characterized in that: The bag body, the first filter screen and the second filter screen are all made of elastic material.

3. The anti-collision bag with coal-water separation and rapid positioning according to claim 1, characterized in that: The folding frame is composed of a plurality of support rods hinged to each other.

4. The anti-collision bag with coal-water separation and rapid positioning according to claim 1, characterized in that: The controller is provided with an explosion-proof battery for supplying power to the controller, the pressure sensor and the warning light.

5. The anti-collision bag with coal-water separation and rapid positioning according to claim 1, characterized in that: The mesh number of the first filter is smaller than the mesh number of the second filter.

Images