Automatic blowout preventer for mine water and slag separation

Abstract

The utility model discloses a kind of mine water residue separation automatic blowout preventers, including separation tank, pumping hole, composite blowout preventer and blowout preventer pipe, separation tank is equipped with the screening assembly for separating water and residue, water and residue after being separated by screening assembly are discharged from separation tank, pumping hole is arranged on separation tank, for discharging gas in separation tank, composite blowout preventer is used to guide water and residue into separation tank, blowout preventer pipe realizes airflow intercommunication of separation tank and composite blowout preventer;The mine water residue separation automatic blowout preventer combines two major functions of water and slag automatic separation and gas blowout hole protruding automatic blowout into one, realizes the purpose of safe production, environmental health, reduces labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, specifically to an automatic anti-blowout device for separating mine slag. Background Technology

[0002] The purpose of drilling underground is to extract gas before mining, transforming the gas hazard into a usable resource, preventing gas explosions, and ensuring safe production.

[0003] When drilling to remove gas in underground mines, the most common method is to use water pressure to remove slag. The main problems encountered during construction are: (1) Drilling with high pressure water to remove slag results in a large amount of water and slag being mixed together and discharged into the roadway, making the construction site muddy and the construction environment extremely poor. Currently, slag ponds are usually used to settle the slag water, and then manual slag removal is used, which greatly increases the construction intensity; (2) In high-gas mines, as the tunneling depth increases, gas outbursts become common. Once a gas outburst exceeds the limit, it will cause work stoppage for rectification, or even a safety accident. Solving the problem of gas outbursts is the current focus of governance in major coal mines.

[0004] To address the aforementioned problems encountered during construction, an automatic blowout prevention device for separating mine slag is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an automatic anti-blowout device for separating mine slag, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic blowout prevention device for separating mine slag, comprising:

[0007] The separation chamber is equipped with a screening component for separating water and slag. The water and slag separated by the screening component are discharged from the separation chamber.

[0008] The exhaust port is located on the separator and is used to discharge the gas inside the separator.

[0009] Composite blowout shield is used to guide water and sludge into the separation tank;

[0010] The blowout preventer connects the separation chamber and the composite blowout preventer to allow airflow.

[0011] As a preferred technical solution, at least one extraction hole is provided, and at least one extraction hole is equipped with a valve.

[0012] As a preferred technical solution, the separation chamber also includes a detection component for detecting the gas concentration inside the separation chamber.

[0013] As a preferred technical solution, the detection component includes a gas sensor and a controller, wherein the gas sensor is electrically connected to the controller, and the valve is controlled by the controller.

[0014] As a preferred technical solution, valves connected to the controller are also provided on the drainage and slag discharge paths of the separation tank.

[0015] As a preferred technical solution, the screening assembly includes a screen and a vibrator for vibrating the screen. Water and slag introduced into the separation box by the composite anti-spray hood are separated on the screen.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This mine water-slag separation automatic blowout prevention device combines two major functions: automatic separation of water and slag and automatic blowout prevention of gas outbursts, perfectly achieving the goals of safe production, environmental hygiene, and reduced labor intensity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the separation box;

[0020] In the diagram: 1. Separation box; 2. Drainage port one; 3. Drainage port two; 4. Drainage pipe; 5. Gas drainage main pipe; 6. Dust collection pipe; 7. Composite blowout preventer; 8. Downflow pipe; 9. Blowout preventer pipe; 10. Slag discharge port; 11. Sewage discharge port; 12. Valve; 13. Screen; 15. Vibrator; 16. Gas sensor. Detailed Implementation

[0021] The following is a detailed description of an automatic blowout preventer for mine slag separation according to embodiments of the present disclosure, with reference to the accompanying drawings. To make the objectives, technical solutions, and advantages of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present disclosure.

[0022] Therefore, the following detailed description of embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without inventive effort are within the scope of protection of the present disclosure.

[0023] The device mainly consists of a mechanical part, a screening component and an electrical control part. The mechanical part mainly consists of a composite blowout shield 7 and a separation box 1. The water and slag automatic separation device includes a screen 1 and a vibrator 15. The electrical control part mainly consists of a gas sensor 16 and a PLC controller.

[0024] The separation box 1 has a first extraction hole 2 and a second extraction hole 3. Both the first extraction hole 2 and the second extraction hole 3 are located on the top of the separation box 1. Both the first extraction hole 2 and the second extraction hole 3 are connected to the underground gas extraction main pipe 5 through the extraction pipe 4. The purpose of setting two extraction holes is to prevent the gas from being unable to be discharged in time and effectively in the event of a blowout accident. The extraction holes can also be set to two or more depending on the situation.

[0025] Valves 12 are installed at both exhaust port 1 (2) and exhaust port 2 (3). Valves 12 can be manual or pneumatic butterfly valves, as long as they can open and close the exhaust ports. For ease of use, a manual butterfly valve can be installed on exhaust port 1 (2) to ensure gas discharge during normal use. An pneumatic butterfly valve can be installed on exhaust port 2 (3). Exhaust port 1 (2) is normally open, while the pneumatic butterfly valve on exhaust port 2 (3) serves as an emergency discharge valve. The pneumatic butterfly valve can open or close exhaust port 2 (3) by receiving signals. When there are more than two exhaust ports, the remaining exhaust ports can be equipped with either pneumatic or manual butterfly valves depending on the usage.

[0026] The composite blowout preventer 7 is used to guide water and slag into the separation tank 1. A dust collection pipe 6 is provided at the front end of the composite blowout preventer 7. The dust collection pipe 6 can collect the water, slag and gas mixture discharged from the borehole. The composite blowout preventer 7 is connected to a drain pipe 8 and a blowout preventer pipe 9. The drain pipe 8 and the blowout preventer pipe 9 extend and connect to the separation tank 1 respectively. When the composite blowout preventer is in normal use, the blowout preventer pipe 9 discharges gas into the separation tank 1, and the drain pipe 8 discharges water, slag and gas mixture into the separation tank 1. When a blowout accident occurs, the blowout preventer pipe 9 can also discharge water and slag that cannot be discharged in time through the drain pipe 7 into the separation tank 1, thus playing a blowout prevention protection role.

[0027] The screening assembly is located inside the separation chamber 1. The screening assembly is used to vibrate and separate the water and slag entering the separation chamber 1. The slag discharge port 10 and the water discharge port 11 of the separation chamber 1 are respectively for discharging slag. Valves 12 are installed at both the slag discharge port 10 and the water discharge port 11. The valves 12 are preferably pneumatic butterfly valves, but manual butterfly valves are also possible. The screening assembly includes a screen 1 installed inside the separation chamber. The screen 1 extends at an incline. The higher end of the screen 1 is matched with the lower discharge pipe 8, and the lower end of the screen 1 is matched with the slag discharge port 10. A vibrator 15 is installed on the screen 1 to generate high-frequency vibration. The two sets of valves 12 can be opened or closed by accepting signals to open or close the slag discharge port 10 and the water discharge port 11. The two sets of valves 12 here are also preferably pneumatic butterfly valves.

[0028] The detection component is used to detect the gas concentration in the separation chamber 1. If the gas concentration exceeds the limit, it controls multiple sets of pneumatic butterfly valves to open and close respectively. The detection component includes a gas sensor 16 and a PLC controller. The gas sensor 16 is a laser pipeline methane sensor, and the sensing probe of the gas sensor 16 is located inside the separation chamber 1.

[0029] During construction, alarm parameters are set via a PLC controller according to underground construction operation standards. Water and slag discharged during drilling pass through the composite blowout preventer 7 and enter the separation box 1 through the lower drain pipe 8. The vibrator 15 inside the separation box 1 drives the screen 1 to generate high-frequency vibration, separating the water and slag. The water is discharged to the designated underground drainage system through the drain outlet 11 at the bottom of the separation box 1. The screened slag falls into the discharge hopper through the slag discharge outlet 10 and is discharged. Most of the gas discharged from the extraction hole is drawn into the separation box 1 through the blowout preventer pipe 9. When a gas blowout exceeds the limit, the composite blowout preventer 7 conveys... The incoming water and slag contain a large amount of methane gas. Gas sensor 16 alarms and transmits the signal to the PLC controller. The PLC controller immediately issues an instruction to stop the drilling rig from powering on and drilling, and closes the pneumatic butterfly valves of slag discharge port 10 and sewage discharge port 11 to prevent methane gas from leaking out through these two locations. At the same time, it opens the pneumatic butterfly valve of extraction port 3 to accelerate the emission of methane gas from the tank and reduce the pressure and methane concentration in separation tank 1. After the pressure and methane concentration in the tank return to normal, the water and slag accumulated in separation tank 1 are cleaned. After cleaning, the PLC controller is reset and the drilling rig resumes drilling operations.

[0030] In addition, it should be noted that the pneumatic butterfly valve is connected to the PLC controller through an indirect control connection. Generally, the solenoid valve that controls the opening and closing of the pneumatic butterfly valve's air circuit is electrically connected to the PLC controller. The PLC controller controls the pneumatic butterfly valve by controlling the air circuit of the pneumatic butterfly valve.

[0031] In summary, during underground drilling, it is necessary to separate water and slag, and also to handle the gas that surges out during drilling to prevent gas exceedances. The automatic blowout prevention device for water and slag separation in this mine combines the two major functions of automatic water and slag separation and automatic blowout prevention of gas outbursts, achieving the goals of safe production, environmental hygiene, and reduced labor intensity.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic blowout prevention device for separating mine slag, characterized in that, include: The separation chamber is equipped with a screening component for separating water and slag. The water and slag separated by the screening component are discharged from the separation chamber. The exhaust port is located on the separator and is used to discharge the gas inside the separator. The blowout preventer connects the separation chamber and the composite blowout preventer to allow airflow.

2. The automatic blowout prevention device for separating mine slag according to claim 1, characterized in that, At least one extraction hole is provided, and at least one extraction hole is equipped with a valve.

3. The automatic blowout prevention device for separating mine slag according to claim 2, characterized in that, The separation chamber also includes a detection component for detecting the gas concentration inside the separation chamber.

4. The automatic blowout prevention device for separating mine slag according to claim 3, characterized in that, The detection component includes a gas sensor and a controller. The gas sensor is electrically connected to the controller, and the valve is controlled by the controller.

5. The automatic blowout prevention device for separating mine slag according to claim 4, characterized in that, The drainage and slag discharge paths of the separation tank are also equipped with valves that are connected to the controller.

6. The automatic blowout prevention device for separating mine slag according to claim 1, characterized in that, The screening assembly includes a screen and a vibrator for vibrating the screen. Water and slag introduced into the separation box by the composite anti-spray hood are separated on the screen.

Images