Dust separation equipment for gas extraction based on coal mining

Abstract

The utility model discloses dust separation equipment for gas extraction based on coal mining. The dust separation equipment comprises a pipe A and a pipe B which are communicated with each other, the end, close to the pipe B, of the pipe A is connected with a first three-way pipe, and an outer port of the first three-way pipe is gradually narrowed from thick to thin; the end, close to the pipe A, of the pipe B is connected with a second three-way pipe, outer ports of the second three-way pipe are parallel to each other, and openings of the second three-way pipe face upwards and downwards respectively; the outer port of the second three-way pipe is in threaded connection with a filter pipe; the first three-way pipe and the second three-way pipe are directly rotated by 180 degrees, the purpose of changing a gas circulation pipeline is achieved, then the purpose of replacing water or a filter element used for filtering is achieved, then the filter pipe located on the upper portion after the position is replaced is detached, water or the filter element in the filter pipe is replaced, shutdown operation is not needed in the process, and operation is convenient. Not only is the filtering effect of the gas improved, but also waste and environmental pollution are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas extraction, and in particular relates to dust separation equipment for gas extraction based on coal mining. Background Art

[0002] Lack of air methane refers to coal mine gas with a methane concentration of less than 0.75%. The utilization of "lack of air" was once a global problem. Due to its low concentration and the difficulty of utilization technology, these methanes had to be discharged into the atmosphere for a long time, causing huge greenhouse gas pollution.

[0003] Patent CN220726366U discloses a coal mine gas extraction device with a filtering function. By installing a filter membrane on the inner wall of the mounting ring, the filter membrane is used to capture very small particles and microparticles, thereby ensuring higher quality of extracted gas. Multiple sets of filter screens are installed on the inner wall of the other side of the filter cylinder. The filter screens are used to enhance the ability to capture and filter impurities, thereby improving the purity of the gas.

[0004] In the technical solution of the above-mentioned patent, the impurity components in the gas are removed by the cooperation of the filter membrane and the filter screen. However, coal mining is generally a long-term process, and in the technical solution of this patent, the filter membrane and the filter screen are set in the pipeline to filter the gas. Although the purity of the gas is improved to a certain extent, after long-term use, a large amount of impurities will adhere to the filter screen and the filter membrane, which not only leads to reduced filtration of the gas, but also causes blockage if not handled in time. However, since the filter membrane and the filter screen are set inside the pipeline, the operation needs to be stopped for replacement or cleaning, resulting in part of the gas being unable to be filtered, resulting in waste. Utility Model Content

[0005] In order to solve the technical problem in the prior art that replacement of filter membranes or filter screens requires shutdown, resulting in some gas being unable to be filtered and causing waste, the utility model provides a dust separation device for gas extraction based on coal mining.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A dust separation device for gas extraction in coal mining comprises a tube A and a tube B that are interconnected. The end of tube A near tube B is connected to a first tee, the outer end of which gradually narrows from a wide diameter to a thin diameter. The end of tube B near tube A is connected to a second tee, the outer ends of which are parallel to each other and open upward and downward, respectively.

[0008] The outer end of the second three-way pipe is threadedly connected to a filter tube; the end of the filter tube away from the second three-way pipe is fixedly connected to a first connector; a one-way valve is installed on the first connector; the first and second three-way pipes corresponding to each other are commonly connected to an air pipe;

[0009] A partition plate is fixedly connected inside the first and second tee pipes, and the partition plates are respectively located in the middle of the first and second tee pipes; a blocking block is fixedly connected inside tube A at a position corresponding to the position above the partition plate; a blocking plate is fixedly connected inside tube B at a position corresponding to the position above the partition plate.

[0010] Furthermore, a sewage outlet is provided at the lower portion of one end of the B tube close to the second three-way tube; a second connecting head is fixedly connected to the position of the B tube corresponding to the sewage outlet; a round tube is fixedly connected below the second connecting head; and a solenoid valve is installed on the round tube.

[0011] Furthermore, a fixed protective sleeve is provided on the B tube; a heating wire is fixedly provided between the B tube and the protective sleeve, and the heating wire has a spiral structure and is used to heat the gas in the B tube.

[0012] Furthermore, the cross section of the block is a triangular structure.

[0013] Furthermore, water or a filter element is contained in the filter tube.

[0014] Furthermore, a connecting rod is commonly connected between the first three-way pipe and the second three-way pipe.

[0015] Beneficial effects of the utility model:

[0016] The utility model discloses that when there is a lot of impurities accumulated in the water or filter element in the filter tube located at the bottom, the first three-way pipe and the second three-way pipe are directly rotated 180 degrees synchronously, so as to achieve the purpose of changing the gas circulation pipeline and further achieve the purpose of replacing the water or filter element used for filtering. Afterwards, the filter tube located at the top after the replacement position is disassembled and the water or filter element inside it is replaced. There is no need to stop the machine during the process, which not only improves the gas filtering effect, but also avoids waste and environmental pollution.

[0017] In the present invention, after the gas is filtered by water, it will become moist. At this time, the temperature inside the B tube is increased by the heating wire, so that the gas passing through it is dried, thereby avoiding affecting the subsequent purification process and improving the preparation quality of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 yes Figure 2 A partial enlarged schematic diagram of point A in the middle;

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1. Tube A; 2. Tube B; 3. First tee; 4. Second tee; 5. Filter tube; 6. First connector; 7. One-way valve; 8. Air pipe; 9. Partition plate; 10. Block; 11. Block; 12. Drain outlet; 13. Second connector; 14. Round tube; 15. Solenoid valve; 16. Protective sleeve; 17. Heating wire; 18. Connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1 - Figure 2As shown, a dust separation device for gas extraction based on coal mining comprises a tube A 1 and a tube B 2 which are interconnected. The tube A 1 is connected to the gas pipeline transportation section of the coal mine, and the tube B 2 is connected to the gas extraction equipment. The end of the tube A 1 close to the tube B 2 is connected to a first tee 3, the outer end of which gradually narrows from thick to thin, and the gas flow rate can be increased according to the narrow tube effect. The end of the tube B 2 close to the tube A 1 is connected to a second tee 4, the outer ends of which are parallel to each other, and the openings are respectively arranged upward and downward. There is a common The two ends of the filter sleeve are connected to each other, and the filter sleeve has two ends, and the filter sleeve has two ends. The filter sleeve has two ends. The filter sleeve has two ends. The filter sleeve has two ends. The filter sleeve has two ends. The filter sleeve has two ends.

[0026] Please refer again Figure 2 As shown, a partition plate 9 is fixedly connected inside the first three-way pipe 3 and the second three-way pipe 4, and the partition plate 9 is respectively located in the middle of the first three-way pipe 3 and the middle of the second three-way pipe 4; a block 10 is fixedly connected inside the A tube 1 at a position corresponding to the position above the partition plate 9, and the cross-section of the block 10 is a triangular structure; a block 11 is fixedly connected inside the B tube 2 at a position corresponding to the position above the partition plate 9, and the block 10 and the block 11 are used to prevent gas from passing through the flow path located above.

[0027] When the untreated gas flows from tube A 1 to tube B 2, it passes through the first three-way pipe 3, the organ and the second three-way pipe 4 respectively. The blocking block 10 in tube A 1 cooperates with the partition plate 9 in the first three-way pipe 3 to realize the diversion of the gas, and concentrate the gas in the trachea 8 located below. Then, the trachea 8 and the first connector 6 cooperate to transport the gas to the filter tube 5, and the water or filter element in the filter tube 5 is used to filter the gas to achieve the purpose of purifying the gas. After that, the filtered gas continues to flow into the inside of the second three-way valve, and is again diverted under the action of the partition plate 9 and the blocking plate 11 (to prevent the gas from entering the filter tube 5 located above), so that it is transported along the pipeline direction of tube B 2 until it is sent to the gas purification equipment.

[0028] When there is a lot of accumulation of impurities in the water or filter element in the filter tube 5 located below, the first three-way pipe 3 and the second three-way pipe 4 are directly rotated 180° synchronously to achieve the purpose of changing the gas flow pipeline, and then achieve the purpose of replacing the water or filter element used for filtering. After that, the filter tube 5 located above is disassembled after the position is changed, and the water or filter element inside it can be replaced. There is no need to stop the operation during this process, which not only improves the filtering effect of the gas, but also avoids waste and environmental pollution.

[0029] Please refer again Figure 3 As shown, a sewage outlet 12 is opened at the lower part of one end of the B tube 2 close to the second three-way pipe 4; a second connecting head 13 is fixedly connected to the position of the B tube 2 corresponding to the sewage outlet 12; a circular tube 14 is fixedly connected below the second connecting head 13; and a solenoid valve 15 is installed on the circular tube 14.

[0030] By setting the sewage outlet 12, it is possible to prevent the water in the filter tube 5 from flowing back into the inside of the B tube 2 when the first tee pipe 3 and the second tee pipe 4 are rotated. In actual use, it is only necessary to open the solenoid valve 15 in advance. Even if the water in the filter tube 5 flows back, it will be directly discharged from the sewage outlet 12 to avoid flowing with the gas.

[0031] Please refer again Figure 2 As shown, a fixed protective sleeve 16 is provided on the B tube 2; a heating wire 17 is fixedly provided between the B tube 2 and the protective sleeve 16. The heating wire 17 has a spiral structure and is used to heat the gas in the B tube 2. The spiral structure can make the heating effect on the B tube 2 more uniform.

[0032] After the gas is filtered by water, it becomes moist. At this time, the temperature inside the B tube 2 is increased by the heating wire 17, so that the gas passing through it is dried to avoid affecting the subsequent purification process.

[0033] Throughout the specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] The above content is merely an example and explanation of the structure of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should fall within the scope of protection of the present utility model.

Claims

1. A dust separation device for gas extraction based on coal mining, characterized by: It comprises a tube A (1) and a tube B (2) that are interconnected; one end of the tube A (1) close to the tube B (2) is connected to a first three-way tube (3), and the outer end of the first three-way tube (3) gradually narrows from thick to thin; one end of the tube B (2) close to the tube A (1) is connected to a second three-way tube (4), and the outer ends of the second three-way tube (4) are parallel to each other, and the openings are respectively arranged to face upward and downward; A filter tube (5) is threadedly connected to the outer end of the second three-way pipe (4); a first connector (6) is fixedly connected to one end of the filter tube (5) away from the second three-way pipe (4); a one-way valve (7) is installed on the first connector (6); an air pipe (8) is commonly connected between the first three-way pipe (3) and the second three-way pipe (4) which correspond to each other; A partition plate (9) is fixedly connected inside the first three-way pipe (3) and the second three-way pipe (4), and the partition plate (9) is respectively located in the middle of the first three-way pipe (3) and the middle of the second three-way pipe (4); a blocking block (10) is fixedly connected inside the A pipe (1) at a position corresponding to the position above the partition plate (9); and a blocking plate (11) is fixedly connected inside the B pipe (2) at a position corresponding to the position above the partition plate (9).

2. The dust separation equipment for gas extraction based on coal mining according to claim 1, characterized in that: A sewage outlet (12) is provided at the lower portion of one end of the B tube (2) close to the second three-way tube (4); a second connecting head (13) is fixedly connected to the B tube (2) at a position corresponding to the sewage outlet (12); a circular tube (14) is fixedly connected below the second connecting head (13); and a solenoid valve (15) is installed on the circular tube (14).

3. The dust separation equipment for gas extraction based on coal mining according to claim 1, characterized in that: A fixed protective sleeve (16) is sleeved on the B tube (2); a heating wire (17) is fixedly arranged between the B tube (2) and the protective sleeve (16); the heating wire (17) is a spiral structure and is used to heat the gas in the B tube (2).

4. The dust separation equipment for gas extraction based on coal mining according to claim 1, characterized in that: The cross section of the block (10) presents a triangular structure.

5. The dust separation equipment for gas extraction based on coal mining according to claim 1, characterized in that: The filter tube (5) is filled with water or a filter element.

6. The dust separation equipment for gas extraction based on coal mining according to claim 1, characterized in that: A connecting rod (18) is commonly connected between the first three-way pipe (3) and the second three-way pipe (4).

Images