Multi-medium automatic mixing valve of onboard foam spraying device of mining heading machine

Abstract

A multi-medium automatic mixing valve of an onboard foam spraying device of a mining heading machine comprises a mixing valve block, a water inlet hole, a water screwed plug, a water flow switch mounting hole, a mixed liquid outlet hole, a rotational flow generator, a foam flow switch mounting hole, a foam screwed plug, an acceleration airflow hole, a high-speed airflow hole, an air screwed plug, a positive pressure air inlet hole, a barometer connecting hole, an air inlet switch and a switch wrench. A water inlet K-type connector, a foam box air supplementing hole, a water pressure gauge connecting hole, a water pressure gauge, a barometer, an air supplementing quick-plug connector, a foam liquid suction quick-plug connector, a foaming agent liquid box, a water amount adjusting valve and a foam amount adjusting valve form the multi-medium automatic mixing valve of the onboard foam spraying device of the mining heading machine.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of multi-medium automatic mixing valve of mine-used heading machine on-board foam spray device, specifically, a kind of mixing device can be mixed with water, gas, foam agent three kinds of medium according to certain proportion automatically. BACKGROUND

[0002] At present, most of mine-used heading machine on-board spray adopts high-pressure water pump to adjust pressure by hydraulic control valve, then high-pressure water is atomized to spray and dust at the cannon head of heading machine, the control pressure method of this valve can only control one kind of medium, causes the effect of large water consumption, low dust-settling efficiency;But, there is no high-efficiency dust-settling device that can control wind and water and also control foam concentration to solve this problem. SUMMARY

[0003] The present application is to solve the series of difficult problems that "most of mine-used heading machine on-board spray adopts high-pressure water pump to adjust pressure by hydraulic control valve, then high-pressure water is atomized to spray and dust at the cannon head of heading machine, the control pressure method of this valve can only control one kind of medium, causes the effect of large water consumption, low dust-settling efficiency;But, there is no high-efficiency dust-settling device that can control wind and water and also control foam concentration to solve this problem", proposes a kind of multi-medium automatic mixing valve of mine-used heading machine on-board foam spray device.

[0004] The purpose of the present application is achieved by the following technical solutions:

[0005] An automatic multi-media mixing valve for a mining tunneling machine's onboard foam spraying device includes a mixing valve block 1, a water inlet 2, a water plug 3, a water flow switch mounting hole 4, a mixed liquid outlet 5, a vortex generator 6, a foam flow switch mounting hole 7, a foam plug 8, an accelerating airflow hole 9, a high-speed airflow hole 10, an air plug 11, a positive pressure air inlet 12, a pressure gauge connection hole 13, an air inlet switch 14, a switch wrench 15, a water inlet K-type connector 16, and a foam box air replenishment hole 17. The mixing valve block 1 has a water pressure gauge connection hole 18, a water pressure gauge 19, a gas pressure gauge 20, a quick-connect air supply connector 21, a quick-connect foam liquid suction connector 22, a foam agent liquid tank 23, a water flow regulating valve 24, and a foam flow regulating valve 25. The upper side of the mixing valve block 1 has a water flow switch mounting hole 4, a foam flow switch mounting hole 7, a gas pressure gauge connection hole 13, a foam tank air supply hole 17, and a water pressure gauge connection hole 18, all perpendicular to the surface. Horizontally, it has a water inlet hole 2, a mixed liquid outlet hole 5, and an accelerating airflow hole. The system includes a hole 9, a high-speed airflow hole 10, a positive pressure air inlet hole 12, and a pressure gauge connection hole 13; the water wire plug 3 is installed on the front side of the mixing valve block 1, and the foam wire plug 8 and air wire plug 11 are installed on the rear side of the mixing valve block 1; the water flow regulating valve 24 is installed in the water flow switch mounting hole 4, the foam flow regulating valve 25 is installed in the foam flow switch mounting hole 7, the water pressure gauge 19 is installed in the water pressure gauge connection hole 18, and the air pressure gauge 20 is installed in the air pressure gauge connection hole 13; the switch wrench 15 is installed on the air inlet switch 14, the air inlet switch 14 is installed in the high-speed airflow hole 10, the water inlet K-type connector 16 is installed in the water inlet hole 2, and the vortex generator 6 is installed in the mixed liquid outlet hole 5; the quick-connect air supply connector 21 and the quick-connect foam liquid suction connector 22 are respectively connected to the mixing valve block 1 and the foam agent liquid tank 23, and the foam agent liquid tank 23 is installed on the lower side of the mixing valve block 1, forming a multi-media automatic mixing valve for a mining tunneling machine's onboard foam spraying device.

[0006] To further facilitate control and operation, a water flow regulating valve 24 and a foam flow regulating valve 25 are installed on the mixing valve block 1, making it easier to adjust the water flow and foam flow.

[0007] The present invention has the following advantages over existing unloading devices:

[0008] 1. It has a pressure display function: the mixing valve block 1 is equipped with a pressure gauge 20, which can display the supply pressure.

[0009] 2. Water pressure display function: The mixing valve block 1 is equipped with a water pressure gauge 19, which can display the water supply pressure.

[0010] 3. It has the function of generating swirling flow: the mixing valve block 1 is equipped with a swirling flow generator 6, which makes the sprayed mixture ejected in a rotating manner.

[0011] 4. Simple structure: the multi-medium automatic mixing valve of the foam spraying device of the mine tunneling machine is compact in structure, light in weight, complete in specifications, easy to install and easy to popularize and apply. BRIEF DESCRIPTION OF DRAWINGS

[0012] The application will be further described in detail below according to the drawings and embodiments.

[0013] Figure 1 and Figure 2 is a structural diagram of a multi-medium automatic mixing valve of a foam spraying device of a mine tunneling machine;

[0014] Figure 1 : mixing valve block 1, water inlet hole 2, water plug 3, water flow switch mounting hole 4, mixed liquid outlet hole 5, rotational flow generator 6, foam flow switch mounting hole 7, foam plug 8, accelerated airflow hole 9, high-speed airflow hole 10, gas plug 11, positive pressure air inlet hole 12, air pressure gauge connection hole 13, air inlet switch 14, switch wrench 15, water inlet K-shaped connector 16, foam tank air supplement hole 17, water pressure gauge connection hole 18,

[0015] Figure 2 : water pressure gauge 19, air pressure gauge 20, air supplement quick plug connector 21, foam liquid suction quick plug connector 22, foam agent liquid tank 23, water volume regulating valve 24, foam volume regulating valve 25. DETAILED DESCRIPTION

[0016] The multi-medium automatic mixing valve of the foam spraying device of the mine tunneling machine comprises a mixing valve block 1, a water inlet hole 2, a water plug 3, a water flow switch mounting hole 4, a mixed liquid outlet hole 5, a cyclone generator 6, a foam flow switch mounting hole 7, a foam plug 8, an accelerated airflow hole 9, a high-speed airflow hole 10, a gas plug 11, a positive pressure air inlet hole 12, a gas pressure gauge connecting hole 13, an air inlet switch 14, a switch wrench 15, a water inlet K-shaped connector 16, a foam tank air supplement hole 17, a water pressure gauge connecting hole 18, a water pressure gauge 19, a gas pressure gauge 20, a gas supplement quick connector 21, a foam liquid suction quick connector 22, a foam agent liquid tank 23, a water quantity adjusting valve 24, and a foam quantity adjusting valve 25. The upper side of the mixing valve block 1 is provided with the water flow switch mounting hole 4, the foam flow switch mounting hole 7, the gas pressure gauge connecting hole 13, the foam tank air supplement hole 17, and the water pressure gauge connecting hole 18, which are perpendicular to the surface. The mixing valve block 1 is provided with the water inlet hole 2, the mixed liquid outlet hole 5, the accelerated airflow hole 9, the high-speed airflow hole 10, the positive pressure air inlet hole 12, and the gas pressure gauge connecting hole 13, which are transverse. The water plug 3 is installed on the front side of the mixing valve block 1, and the foam plug 8 and the gas plug 11 are installed on the rear side of the mixing valve block 1. The water quantity adjusting valve 24 is installed in the water flow switch mounting hole 4, the foam quantity adjusting valve 25 is installed in the foam flow switch mounting hole 7, the water pressure gauge 19 is installed in the water pressure gauge connecting hole 18, and the gas pressure gauge 20 is installed in the gas pressure gauge connecting hole 13. The switch wrench 15 is installed on the air inlet switch 14, the air inlet switch 14 is installed in the high-speed airflow hole 10, the water inlet K-shaped connector 16 is installed in the water inlet hole 2, and the cyclone generator 6 is installed in the mixed liquid outlet hole 5. The gas supplement quick connector 21 and the foam liquid suction quick connector 22 are connected with the mixing valve block 1 and the foam agent liquid tank 23, respectively. The foam agent liquid tank 23 is installed on the lower side of the mixing valve block 1, and the multi-medium automatic mixing valve of the foam spraying device of the mine tunneling machine is formed.

[0017] When working, the multi-medium automatic mixing valve of the foam spraying device of the mine tunneling machine has the characteristics that high-pressure air enters the mixed liquid outlet hole 5 from the air inlet switch 14, the high-speed airflow hole 10 and the accelerated airflow hole 9, part of the high-pressure air enters the foam agent liquid tank 23 from the positive pressure air inlet hole 12, the foam tank air supplement hole 17 and the air supplement quick connector 21, the air in the accelerated airflow hole 9 is relatively low in pressure, the foam liquid in the foam agent liquid tank 23 enters the mixed liquid outlet hole 5 through the foam liquid suction quick connector 22 and the foam amount adjusting valve 25 to form the mixed liquid of air and foam, the underground coal mine static pressure water passes through the water inlet K-shaped connector 16, the water inlet hole 2, the accelerated airflow hole 9 and the mixed liquid outlet hole 5, the foam agent, the static pressure water and the air in the mixed liquid outlet hole 5 are pushed by the high-pressure air to be sprayed in a rotating form by the cyclone generator 6 to form a large-area foam, the air pressure gauge 20 is installed in the air pressure gauge connecting hole 13 to display the air inlet pressure, the water pressure gauge 19 is installed in the water pressure gauge connecting hole 18 to display the water inlet pressure, the foam amount adjusting valve 25 is installed in the foam flow switch connecting hole 7 to adjust the foam flow, the water amount adjusting valve 24 is installed in the water flow switch connecting hole 4 to adjust the water supply flow, and the switch wrench 15 is installed on the air inlet switch 14 to adjust the air inlet amount.

[0018] When stopping working, the switch wrench 15 is loosened, the water amount adjusting valve 24 and the foam amount adjusting valve 25 are tightened, the automatic mixing valve stops working, the whole device is cleaned with clean water and is placed in a ventilated and dry place.

[0019] It has been proved in practice that the multi-medium automatic mixing valve of the foam spraying device of the mine tunneling machine has the following advantages: the working pressure can be selected from 0.5 MPa, 1.0 MPa and 1.5 MPa; the working flow can be selected from 5 L / min, 10 L / min and 15 L / min. The multi-medium automatic mixing valve of the foam spraying device of the mine tunneling machine has complete functions, stable operation, flexible adjustment and safety and reliability.

Claims

1. A multi-media automatic mixing valve for a foam spraying device mounted on a mining tunneling machine, comprising a mixing valve block (1), a water inlet (2), a water plug (3), a water flow switch mounting hole (4), a mixed liquid outlet (5), a vortex generator (6), a foam flow switch mounting hole (7), a foam plug (8), an accelerating airflow hole (9), a high-speed airflow hole (10), an air plug (11), a positive pressure air inlet hole (12), a pressure gauge connection hole (13), an air inlet switch (14), a switch wrench (15), a water inlet K-type connector (16), a foam tank air replenishment hole (17), a water pressure gauge connection hole (18), a water pressure gauge (19), a pressure gauge (20), an air replenishment quick-connect connector (21), a foam liquid suction quick-connect connector (22), a foam agent liquid tank (23), a water flow regulating valve (24), and a foam flow regulating valve (25); characterized in that The mixing valve block (1) has a water flow switch mounting hole (4), a foam flow switch mounting hole (7), a pressure gauge connection hole (13), a foam box air supply hole (17), and a water pressure gauge connection hole (18) respectively on its upper side perpendicular to the surface. It also has a water inlet hole (2), a mixed liquid outlet hole (5), an accelerating airflow hole (9), a high-speed airflow hole (10), a positive pressure air inlet hole (12), and a pressure gauge connection hole (13) respectively on its horizontal side. The water plug (3) is installed on the front side of the mixing valve block (1), and the foam plug (8) and air plug (11) are installed on the rear side of the mixing valve block (1). The water flow regulating valve (24) is installed in the water flow switch mounting hole (4), and the foam flow regulating valve (25) is installed in the foam flow switch mounting hole (4). In the mounting hole (7), the water pressure gauge (19) is installed in the water pressure gauge connection hole (18), and the air pressure gauge (20) is installed in the air pressure gauge connection hole (13); the switch wrench (15) is installed on the air inlet switch (14), the air inlet switch (14) is installed in the high-speed airflow hole (10), the water inlet K-type connector (16) is installed in the water inlet hole (2), and the vortex generator (6) is installed in the mixed liquid outlet hole (5); the air replenishment quick connector (21) and the foam liquid suction quick connector (22) are respectively connected to the mixing valve block (1) and the foam agent liquid tank (23), and the foam agent liquid tank (23) is installed on the lower side of the mixing valve block (1), forming a multi-media automatic mixing valve for a mining tunneling machine on-board foam spraying device.

2. The multi-media automatic mixing valve of the onboard foam spraying device for a mining tunneling machine according to claim 1, characterized in that: High-pressure air enters the mixed liquid outlet (5) through the air inlet switch (14), high-speed airflow hole (10), and acceleration airflow hole (9). Part of the high-pressure air enters the foaming agent tank (23) through the positive pressure air inlet (12), foam box air replenishment hole (17), and air replenishment quick connector (21). The foam liquid in the foaming agent tank (23) enters the mixed liquid outlet (5) through the foam liquid suction quick connector (22) and foam quantity regulating valve (25) to form a mixture of air and foam. The static pressure water in the coal mine enters the accelerated airflow hole (9) through the water inlet K-type connector (16) and water inlet hole (2), and then into the mixed liquid outlet (5). The foaming agent, static water, and air in the outlet hole (5) are ejected in a rotating form by the vortex generator (6) under the thrust of high-pressure air to form a large area of ​​foam. The air pressure gauge (20) is installed in the air pressure gauge connection hole (13) to display the air inlet pressure, the water pressure gauge (19) is installed in the water pressure gauge connection hole (18) to display the water inlet pressure, the foam quantity regulating valve (25) is installed in the foam flow switch mounting hole (7) to regulate the foam flow rate, the water quantity regulating valve (24) is installed in the water flow switch mounting hole (4) to regulate the water supply flow rate, and the switch wrench (15) is installed on the air inlet switch (14) to regulate the air inlet volume.

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