Water-driven spraying curtain device

Abstract

The invention provides a safe, efficient and energy-saving water mist forming device, not only water is used as a dust falling medium, but also water is used as power to generate wind power, and the wind power is used for further generating water mist to achieve a good dust falling effect. The device is small in size, does not need to be driven by electric power, is simple in structure, and can be mounted on mining equipment, hung on a hydraulic support of a coal face or hung on the top of a roadway needing secondary dust fall.

Description

Technical Field

[0001] The present invention relates to a device for spray dust reduction in a coal mining face, a tunneling face or an underground roadway in a coal mine; and a spray humidification device for an environment that needs humidification in a factory workshop, a breeding and planting greenhouse. Background Art

[0002] During coal mining and tunneling operations in coal mines, a large amount of dust is generated. These dusts float in the limited underground space. Firstly, it causes harm to the physical health of personnel. Secondly, when the dust concentration in the air reaches a certain level, it will explode when encountering an open fire or heat source, posing a safety threat to personnel and the mine. The current dust reduction methods are as follows: Firstly, direct spray dust reduction is adopted. The dust reduction effect of this method is average because the effect of the nozzle forming water mist is poor. Secondly, a dust removal fan is used. The dust removal fan is to install a nozzle at the air outlet of the fan. The air flow blows the water flow to form water mist, and the water mist can effectively blend with the dust to achieve the dust reduction effect. However, this method has several disadvantages: Firstly, the fan has a large noise. Secondly, it has a large volume and occupies the limited underground space. Thirdly, the fan motor works in a humid environment for a long time, which is prone to leakage, posing a threat to the personal safety of the staff. Summary of the Invention

[0003] The purpose of the present invention is to provide a safe, efficient and energy-saving water mist forming device, which not only uses water as a dust reduction medium, but also uses water as a power source to generate wind power, and further generates water mist with the wind power to achieve a good dust reduction effect. The device of the present invention is small in volume, does not require electric drive, has a simple structure, can be installed on mining equipment, hung on the hydraulic support of the coal mining face, or hung on the top of the roadway that needs secondary dust reduction.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a water-driven water mist device, including a nozzle, a wind blade, a rotating device, a wind cylinder, a frame and a waterway connecting piece, etc. The nozzle and the wind blade are symmetrically or equally installed on the same shaft. The nozzle has a certain angle with the center line of the shaft. This shaft is a hollow shaft, and the nozzle is communicated with the central hole of the shaft. The shaft is installed in the rotating device. At the end of the shaft in the rotating device, it is communicated with the water pipe at the tail of the rotating device through mechanical seal. The rotating device is installed on the center line of the wind cylinder, supporting the rotation of the nozzle and the wind blade. Three wind cylinders of this device are installed in the same frame to form a basic unit.

[0005] The advantages of the present invention are as follows: 1. The nozzle and the wind blade are installed on the same rotating part. When pressurized water is supplied, the spraying of the nozzle can drive the nozzle and the wind blade to rotate together. The air flow generated by the wind blade can disperse and further atomize the water mist sprayed by the nozzle, achieving a better dust reduction effect. 2. The power is simple, just single pressurized water. 3. Three air ducts form a unit (a whole), which can effectively reduce the overall height and save space. 4. In the coal mine roadway or other factory sheds that need humidification, multiple units can be combined to form a mist curtain. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is the overall structure diagram of the present invention Figure 2 is the present invention Figure 1 view in the direction of A-A of Figure 3 is the water mist forming mechanism diagram of the present invention EMBODIMENT

[0007] The following further describes the present invention in conjunction with the drawings and specific embodiments: The water-driven spray curtain device, as Figure 1 , Figure 2 , Figure 3 shown, three air ducts 2 are grouped together with the frame 1 to form a whole. On the center line inside each air duct, there is a center support 3. A rotating device 4 is installed inside the center support 3. The central shaft 6 is a hollow shaft, and the shaft 6 is installed in the rotating device 4 by bearings. The rear end of the shaft 6 (i.e., the left end of the shaft) is communicated with the water pipe 5 through a mechanical seal. The mechanical seal can not only ensure the smooth water passage between the pipe 5 and the shaft 6 without leakage, but also ensure the flexible rotation of the shaft 6. The front end of the hollow shaft 6 is installed with a connection disk 7. The connection disk 7 has a central hole, and the central hole is hermetically connected to the central hole of the shaft 6. Water pipes are symmetrically or evenly welded on the connection disk 7. As Figure 2 shown, the nozzle 9 is installed on the water pipe of the connection disk 7 through a bent pipe 8. The nozzle direction of the nozzle 9 forms a certain angle with the center line of the shaft 6. The wind blades 10 are symmetrically or evenly installed on the connection disk 7, that is, both the wind blades 10 and the nozzle 9 are on the concentric circles centered on the shaft 6. The three air ducts are connected by pipes, and the three spraying devices can work simultaneously. That is, pressurized water is supplied into the pipe 5. The pressurized water enters the central shaft 6 through the mechanical seal inside the rotating device 4, then enters the connection disk 7, and finally reaches the nozzle 9 for spraying. Since there is a certain angle between the nozzle 9 and the central shaft 6, a torsion centered on the shaft 6 is generated when the nozzle 9 sprays. This makes the connection disk 7 rotate. Since the wind blades 10 are fixed on the connection disk 7, that is, the wind blades 10 also rotate together. The rotation of the wind blades 10 generates an axial air flow inside the air duct 2. The air flow disperses and atomizes the water mist and unatomized water droplets sprayed by the nozzle 9 and blows them out, so that the water mist and floating dust are fused to achieve a good dust reduction effect.

[0008] The inventions can be combined in multiple numbers to form a fog curtain in the roadway of the coal mine underground, the coal mining and tunneling working face, or factories and greenhouses, so as to cut off the drifting of floating dust and thus achieve the purpose of dust reduction.

Claims

1. The invention is a water-driven spray curtain device. The spray head 9 is installed on the connecting plate 7 through an elbow 8, and the fan blades 10 are also symmetrically installed on the connecting plate 7. The spray head 9 forms a certain angle with the center line of the shaft 6. The connecting plate 7 is hermetically connected to the hollow shaft 6. The shaft 6 is installed in the rotating device through bearings. The tail end of the shaft 6 is connected to the external pipeline 5 through mechanical seals. The rotating device 4 is fixed in the air duct 2 by the center frame 3.

2. Three air ducts 2 are combined together through the frame 1 to form a spray curtain unit.

3. Multiple spray curtain units can be combined together to form a large spray curtain.

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