A high-efficiency dust removal and suppression device for underground coal mine roadways

Abstract

This utility model discloses a high-efficiency dust removal and suppression device for underground coal mine roadways, comprising a housing with a water tank inside. An atomizing device is located on the upper surface of the housing, and a water inlet is located at the bottom of the atomizing device. A suction pipe, penetrating the upper surface of the housing and extending into the water tank, is connected to the water inlet. An air inlet is located on the front surface of the housing. This utility model uses a diversion pipe to evenly divide the dust-laden airflow into multiple streams, which, in conjunction with a bubble screen at the end, further break up the bubbles, reducing the size of the bubbles when the air flows into the water. This effectively increases the probability of the water capturing dust and reduces the likelihood of dust returning to the air with large bubbles, improving air quality in the roadway. Simultaneously, an airflow buffer plate smoothly discharges residual airflow into the upper part of the water tank, effectively preventing water splashing and disturbance of sediment.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology, specifically to a high-efficiency dust removal and suppression device for underground coal mine roadways. Background Technology

[0002] High-efficiency dust removal and suppression devices for underground coal mine roadways are specialized equipment developed to address high-concentration dust pollution in mining operations. They achieve rapid dust settling through physical, chemical, or combined processes, ensuring operational safety and worker health.

[0003] However, existing high-efficiency dust removal and suppression devices for underground coal mine roadways generally use water mist spraying into the air for dust suppression. This method is generally ineffective and cannot effectively improve the environment inside the mine. Therefore, it does not meet the current needs. In response, we propose a high-efficiency dust removal and suppression device for underground coal mine roadways. Utility Model Content

[0004] The purpose of this utility model is to provide a high-efficiency dust removal and suppression device for underground coal mine roadways, in order to solve the problems mentioned in the background art, such as the common practice of spraying water mist into the air to suppress dust, which has a generally poor effect and cannot effectively improve the environment inside the mine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency dust removal and suppression device for underground coal mine roadways, comprising a housing, an internal water tank, an atomizing device on the upper surface of the housing, a water inlet at the bottom of the atomizing device, a water inlet connected to the water inlet with a suction pipe penetrating the upper surface of the housing and extending the water inlet end of the suction pipe into the water tank, an air inlet on the front surface of the housing, a filter screen inside the air inlet, and an air duct connected to the rear end of the air inlet and inside the housing, the air duct being inclined and extending to the bottom of the water tank.

[0006] Preferably, the air inlet end of the air duct is equipped with a suction fan, the interior of the air duct behind the suction fan is equipped with a diversion pipe, the end of the submerged section of the air duct behind the diversion pipe is equipped with a bubble screen, and the air duct is equipped with an airflow buffer plate at the exhaust port at the bottom of the water tank.

[0007] Preferably, the box body has a door on one side, a tray at the bottom, the box body is fixed to the upper surface of the tray, a spring is installed on the bottom surface of the tray, and the tray is connected to casters via the spring.

[0008] Preferably, the water inlet end of the water suction pipe is suspended without contacting the inside of the water tank and without contacting the bottom of the water tank.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] In use, this invention first moves the device to the mining area using wheels, connects the suction pipe to the inlet of the atomizing device, and then presses the start button. The main control system receives the command and drives the atomizing device to spray water mist at the designated location, reducing dust generated during mining. Simultaneously, the suction fan at the front of the housing starts operating, filtering the dust-laden airflow generated during mining through the filter screen at the air inlet before it enters the duct. The dust-laden airflow is evenly divided into multiple fine streams by the diverter pipe. When the fine streams reach the bubble screen at the end of the duct, they are further broken into microbubbles. The microbubbles carry the dust into the water tank. During the bubble bursting process, the dust particles are captured, wetted, and settled by the water film. The residual gas... The airflow is slowed and diffused by the airflow buffer plate at the exhaust port before being smoothly discharged into the upper part of the water tank, effectively preventing water splashing and disturbing sediment. This utility model uses a diversion pipe to evenly divide the dust-laden airflow into multiple streams, and works in conjunction with the bubble screen at the end to break up the bubbles a second time, reducing the size of the bubbles when the air flows into the water. This effectively increases the probability of the water capturing dust and reduces the situation where dust will return to the air with large bubbles, thus improving the air quality in the tunnel. At the same time, the airflow buffer plate smoothly discharges the residual airflow into the upper part of the water tank, effectively preventing water splashing and disturbing sediment. Meanwhile, the spring at the bottom of the tray dampens the vibration generated during excavation, providing effective assistance for the operation of the device. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a side view of the entire utility model;

[0013] Figure 3 This is a cross-sectional view of the present invention.

[0014] In the diagram: 1. Box body; 2. Filter screen; 3. Tray; 4. Atomizing device; 5. Air inlet; 6. Spring; 7. Casters; 8. Suction fan; 9. Diverter pipe; 10. Bubble screen; 11. Airflow buffer plate; 12. Water tank; 13. Water suction pipe; 14. Water inlet; 15. Air duct; 16. Door. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Please see Figures 1 to 3This utility model provides an embodiment of a high-efficiency dust removal and suppression device for underground coal mine roadways, comprising a housing 1, a tray 3 at the bottom of the housing 1, the housing 1 being fixed to the upper surface of the tray 3, a spring 6 installed on the bottom surface of the tray 3, and a movable wheel 7 connected to the tray 3 via the spring 6. A water tank 12 is located inside the housing 1, a door 16 is located on one side of the housing 1, an atomizing device 4 is located on the upper surface of the housing 1, and a water inlet 14 is located at the bottom of the atomizing device 4. A suction pipe 13, penetrating the upper surface of the housing 1, is connected to the water inlet 14, with the inlet end of the suction pipe 13 extending into the water tank 12. The water inlet end of the suction pipe 13 is suspended without contacting the inside of the water tank 12 and without contacting the bottom of the water tank 12. An air inlet 5 is provided on the front end face of the box body 1. A filter screen 2 is provided inside the air inlet 5. An air duct 15 is connected to the rear end of the air inlet 5 and located inside the box body 1. The air duct 15 is inclined and extends to the bottom of the water tank 12. An air intake fan 8 is provided at the air inlet end of the air duct 15. A diversion pipe 9 is provided inside the air duct 15 behind the air intake fan 8. An air bubble screen 10 is provided at the end of the submerged section of the air duct 15 behind the diversion pipe 9. An airflow buffer plate 11 is provided at the exhaust port of the air duct 15 at the bottom of the water tank 12.

[0017] When using the device, first push it to the mining area using the caster 7, connect the water suction pipe 13 to the water inlet 14 of the atomizing device 4, then press the start button. The main control system receives the command and drives the atomizing device 4 to work, spraying water mist to the designated location to reduce dust caused during mining. At the same time, the suction fan 8 located at the front of the box 1 starts to operate, filtering the dust-laden airflow caused by mining through the filter screen 2 of the air inlet 5 and then entering the air duct 15. The dust-laden airflow is evenly divided into multiple fine streams by the diversion pipe 9 in the branch pipe 15. When the fine streams reach the bubble screen 10 at the end of the air duct 15, they are broken into microbubbles. The microbubbles carry the dust into the water tank 12. The dust particles are captured, wetted and settled by the water film during the bubble bursting process. The residual airflow is slowed down and diffused by the airflow buffer plate 11 at the exhaust port and then smoothly discharged into the upper part of the water tank 12, effectively preventing water splashing and disturbing the sediment.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-efficiency dust removal and suppression device for underground coal mine roadways, comprising a housing (1), wherein a water tank (12) is provided inside the housing (1), characterized in that: The upper surface of the box (1) is provided with an atomizing device (4), and the bottom end of the atomizing device (4) is provided with a water inlet (14). The water inlet (14) is connected to a water suction pipe (13) that penetrates the upper surface of the box (1), and the water inlet end of the water suction pipe (13) extends into the water tank (12). The front end of the box (1) is provided with an air inlet (5), and the inside of the air inlet (5) is provided with a filter screen (2). The rear end of the air inlet (5) and located inside the box (1) is connected to an air duct (15), and the air duct (15) is inclined and extends to the bottom of the water tank (12).

2. The high-efficiency dust removal and suppression device for underground coal mine roadways according to claim 1, characterized in that: The air inlet of the air duct (15) is provided with a suction fan (8), and the interior of the air duct (15) behind the suction fan (8) is provided with a diversion pipe (9). The end of the submerged section of the air duct (15) behind the diversion pipe (9) is provided with a bubble screen (10). The air duct (15) at the exhaust port at the bottom of the water tank (12) is provided with an airflow buffer plate (11).

3. The high-efficiency dust removal and suppression device for underground coal mine roadways according to claim 1, characterized in that: The box (1) has a door (16) on one side and a tray (3) at the bottom. The box (1) is fixed to the upper surface of the tray (3). A spring (6) is installed on the bottom surface of the tray (3). The tray (3) is connected to a moving wheel (7) through the spring (6).

4. The high-efficiency dust removal and suppression device for underground coal mine roadways according to claim 1, characterized in that: The water inlet end of the suction pipe (13) is suspended without contacting the inside of the water tank (12) and does not contact the bottom of the water tank (12).

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