Coal mine gas water mist delivery device
By designing the atomizing and speed-increasing components of the coal mine gas water mist conveying device, the problems of large water mist particle size and unstable conveying speed in the gas water mist system were solved, achieving full contact between gas and water mist and improving conveying efficiency, thus significantly enhancing the effect of preventing gas explosions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- RECEPTION OFFICE OF THE FIRST EXPLORATION BUREAU OF CHINA GENERAL ADMINISTRATION OF COAL GEOLOGY
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-02
AI Technical Summary
In existing gas water mist suppression systems, the large particle size and unstable delivery speed of the water mist affect the contact effect between gas and water mist, resulting in low efficiency in preventing gas explosions.
A coal mine gas water mist conveying device was designed, comprising an atomizing component, a speed-increasing component, and a reflux component. The atomizing component ensures full contact between the gas and the water mist, the speed-increasing component increases the conveying speed, and the reflux component collects water droplets to prevent them from affecting the gas conveying rate.
This ensures full contact between gas and water mist, improves the effectiveness of preventing gas explosions, and guarantees the stability and efficiency of gas transportation.
Smart Images

Figure CN224315034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine safety production technology, and in particular to a coal mine gas water mist conveying device. Background Technology
[0002] Methane gas is a common and highly explosive hazardous gas in coal mining, threatening the lives of miners and the normal production of the mine. Methane explosions often cause extremely serious casualties and equipment damage, resulting in huge economic losses for coal mining enterprises. Therefore, how to effectively prevent methane explosions and ensure safe coal mine production has become an important research topic in mine safety technology.
[0003] Currently, common gas control measures include ventilation to remove gas, gas extraction, and gas monitoring. These methods can reduce the risk of gas accumulation to some extent, but they still have limitations. Especially in environments with high gas concentrations or a high risk of gas explosion, ventilation alone is often insufficient to meet the requirements of safe production. Water mist suppression technology is considered an effective means of preventing gas explosions. Water mist isolates gas from oxygen through tiny water droplets, thereby reducing the risk of gas explosion.
[0004] Traditional gas water mist suppression systems suffer from several problems, such as large water mist particle size preventing sufficient contact with the gas, or unstable water mist delivery speed affecting the control effect. Furthermore, atomized water droplets often accumulate moisture, affecting the gas flow rate and reducing delivery efficiency. Therefore, ensuring sufficient contact between the water mist and the gas to achieve a good suppression effect without affecting gas delivery is a major challenge in current technological research. This invention provides a coal mine gas water mist delivery device. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model discloses a coal mine gas water mist conveying device, including a conveying pipe, two sets of symmetrically distributed atomizing components are arranged on the outer side of the conveying pipe, and an acceleration component and a return component are installed on the conveying pipe.
[0006] The atomizing component includes two symmetrically distributed atomizing mechanisms, which are disposed on both sides of the speed-increasing component;
[0007] The return flow assembly includes a return water tank and two symmetrically distributed drainage mechanisms. The return water tank is disposed inside the delivery pipe, and the two drainage mechanisms are disposed on both sides of the speed-up assembly.
[0008] Furthermore, the atomizing mechanism includes an atomizing shell, which is fixedly installed on the delivery pipe. Multiple evenly distributed atomizers are fixedly installed inside the atomizing shell, and a water tank is fixedly installed on the outside of the atomizing shell.
[0009] Furthermore, the speed-increasing component includes two symmetrically distributed mounting brackets. The first ends of the two mounting brackets are fixedly mounted on the conveying pipe, and the second ends of the two mounting brackets are connected to a moisture-proof motor. The output end of the moisture-proof motor is fixedly mounted with a speed-increasing turbine, and the speed-increasing turbine is rotatably mounted on the conveying pipe.
[0010] Furthermore, the drainage mechanism includes a return water short pipe, one end of which is connected to the return water tank, and the other end of which is fixedly equipped with a drainage valve.
[0011] Furthermore, the return assembly also includes a return water pipe, which is fixedly connected to two drain valves. One end of the return water pipe is fixedly connected to a return water tank, and the other end of the return water pipe is provided with a blind cover.
[0012] Furthermore, the moisture-proof motor is a waterproof and moisture-proof motor.
[0013] The advantages of this utility model compared with the prior art are as follows: This utility model is equipped with an atomizing component, an acceleration component and a reflux component. The atomizing component and the acceleration component enable the gas and the atomized water to come into full contact, preventing gas explosion. The reflux component collects the water droplets formed by the atomized water, avoiding affecting the gas delivery rate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 .
[0015] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 .
[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.
[0017] Figure 4 This is a schematic diagram of part of the structure of this utility model. Figure 1 .
[0018] Figure 5 This is a schematic diagram of part of the structure of this utility model. Figure 2 .
[0019] Reference numerals: 1-Delivery pipe; 2-Atomizer housing; 3-Water tank; 4-Long return water pipe; 5-Return water tank; 6-Short return water pipe; 7-Drain valve; 8-Return water trough; 9-Increasing speed turbine; 10-Moisture-proof motor; 11-Mounting bracket; 12-Atomizer. Detailed Implementation
[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Example: As shown in the figure, a coal mine gas water mist conveying device includes a conveying pipe 1, two sets of symmetrically distributed atomizing components are arranged on the outside of the conveying pipe 1, and an acceleration component and a return component are installed on the conveying pipe 1.
[0024] The atomizing component includes two symmetrically distributed atomizing mechanisms, which are positioned on both sides of the speed-increasing component;
[0025] The return flow assembly includes a return water tank 8 and two symmetrically distributed drainage mechanisms. The return water tank 8 is located inside the delivery pipe 1, and the two drainage mechanisms are located on both sides of the speed-up assembly.
[0026] The atomizing mechanism includes an atomizing shell 2, which is fixedly installed on the delivery pipe 1. Multiple evenly distributed atomizers 12 are fixedly installed inside the atomizing shell 2, and a water tank 3 is fixedly installed on the outside of the atomizing shell 2.
[0027] The speed-increasing component includes two symmetrically distributed mounting brackets 11. The first end of the two mounting brackets 11 is fixedly mounted on the conveying pipe 1, and the second end of the two mounting brackets 11 is connected to a moisture-proof motor 10. The output end of the moisture-proof motor 10 is fixedly mounted with a speed-increasing turbine 9, which is rotatably mounted on the conveying pipe 1. The moisture-proof motor 10 is a waterproof and moisture-proof motor.
[0028] The drainage mechanism includes a return water short pipe 6, one end of which is connected to the return water tank 8, and the other end of which is fixedly installed with a drainage valve 7.
[0029] The reflux assembly also includes a long reflux pipe 4, which is fixedly connected to two drain valves 7. One end of the long reflux pipe 4 is fixedly connected to a reflux tank 5, and the other end of the long reflux pipe 4 is provided with a blind cover.
[0030] Working principle: During the gas transportation process, before the gas passes through the speed-increasing turbine 9, the two atomizing mechanisms on the left are activated, and multiple atomizers 12 inside the atomizing shell 2 are activated. The multiple atomizers 12 atomize the water in the water tank 3 and then make initial contact with the gas. The moisture-proof motor 10 is activated, and the output end of the moisture-proof motor 10 drives the speed-increasing turbine 9 to rotate. The speed-increasing turbine 9 accelerates the gas and mixes the gas with water mist. Then, the two atomizing mechanisms on the right are activated, so that the gas further contacts the water mist to prevent explosion. Then, the water mist forms water droplets after contacting the pipe wall of the delivery pipe 1. The water droplets flow down the pipe wall into the return water tank 8, and then flow back into the return water short pipe 6. The gas and water are separated by the drain valve 7. The separated water enters the return water tank 5 through the return water long pipe 4 and is collected.
[0031] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. A coal mine gas water mist conveying device, characterized in that: It includes a delivery pipe (1), on the outside of which two sets of symmetrically distributed atomizing components are provided, and an acceleration component and a reflux component are installed on the delivery pipe (1); The atomizing component includes two symmetrically distributed atomizing mechanisms, which are disposed on both sides of the speed-increasing component; The reflux assembly includes a reflux tank (8) and two symmetrically distributed drainage mechanisms. The reflux tank (8) is located inside the delivery pipe (1), and the two drainage mechanisms are located on both sides of the speed-up assembly.
2. The coal mine gas water mist conveying device as described in claim 1, characterized in that: The atomizing mechanism includes an atomizing shell (2), which is fixedly installed on the delivery pipe (1). Multiple evenly distributed atomizers (12) are fixedly installed inside the atomizing shell (2), and a water tank (3) is fixedly installed on the outside of the atomizing shell (2).
3. The coal mine gas water mist conveying device as described in claim 1, characterized in that: The speed-increasing component includes two symmetrically distributed mounting brackets (11). The first end of the two mounting brackets (11) is fixedly mounted on the conveying pipe (1). The second end of the two mounting brackets (11) is connected to a moisture-proof motor (10). The output end of the moisture-proof motor (10) is fixedly mounted with a speed-increasing turbine (9). The speed-increasing turbine (9) is rotatably mounted on the conveying pipe (1).
4. The coal mine gas water mist conveying device as described in claim 1, characterized in that: The drainage mechanism includes a return water short pipe (6), one end of which is connected to the return water tank (8), and the other end of which is fixedly installed with a drainage valve (7).
5. The coal mine gas water mist conveying device as described in claim 1, characterized in that: The return assembly also includes a return water pipe (4), which is fixedly connected to two drain valves (7). One end of the return water pipe (4) is fixedly connected to a return water tank (5), and the other end of the return water pipe (4) is provided with a blind cover.
6. The coal mine gas water mist conveying device as described in claim 3, characterized in that: The moisture-proof motor (10) is a waterproof and moisture-proof motor.