Water mist dust removal system of high-air-pressure drilling machine

Abstract

One end of a pressure guiding pipeline is communicated with a water tank, the other end of the pressure guiding pipeline is a water mist opening, a high-pressure air pipe is connected to the pressure guiding pipeline, and a first one-way valve is installed on the pressure guiding pipeline and located between the high-pressure air pipe and the water tank. The other end of the water outlet pipeline is connected to the pressure guide pipeline between the high-pressure air pipe and the water mist opening; a second one-way valve is mounted on the water outlet pipeline; the first one-way valve is a back pressure valve, and the diameter of the water mist opening is smaller than that of the high-pressure air pipe. The first one-way valve is installed on the pressure guiding pipeline and located between the high-pressure air pipe and the water tank, the first one-way valve is the back pressure valve, and the caliber of the water mist opening is smaller than the caliber of the high-pressure air pipe, so that high air pressure in the high-pressure air pipe is discharged from the water mist opening, low air pressure enters the water tank for drainage, and a better atomization effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high wind pressure drilling machine water mist dust removal technical field especially relates to a high wind pressure drilling machine water mist dust removal system. BACKGROUND

[0002] High wind pressure down-the-hole drill is mainly suitable for open cut hole, and the hole forming efficiency is high, and the technology is mature. The working range is horizontal and vertical hole forming. Because the slag is blown by wind, the dust raising is extremely serious. The existing wind dust removal has certain dust collection effect, but the use cost is very high, and the construction operation surface requirement is higher, which is a criticism that has been difficult to overcome for a long time. Therefore, a high wind pressure drilling machine water mist dust removal system is provided.

[0003] Through the search, the Chinese patent document CN205823207U, published (announced) on December 21, 2016, discloses a water dust removal system for rock drill, which comprises an air compressor and an air pipe, one end of the air pipe is communicated with a gas inlet of the rock drill, the other end of the air pipe is communicated with the air compressor, further comprising a water tank, a pressure guide pipe and a water outlet pipe, a back pressure valve is arranged on the air pipe, one end of the pressure guide pipe is communicated with the air pipe between the back pressure valve and the air compressor, the other end of the pressure guide pipe is communicated with an air inlet of the water tank, a one-way valve is further arranged on the pressure guide pipe, one end of the water outlet pipe is communicated with a water outlet of the water tank, the other end of the water outlet pipe is communicated with the air pipe through a water inlet joint, the water inlet joint is arranged between the back pressure valve and the gas inlet of the rock drill, and an adjustable flow valve and a stop valve are arranged on the water outlet pipe. Its characteristics are that: the back pressure valve, the adjustable flow valve and the stop valve replace the pressure water pump, the cost is lower, the quality is reliable, the water quantity is adjusted through the adjustable flow valve, and the operation is convenient. Its disadvantages are that: in the document, the back pressure valve 11 is installed on the air pipe 3 and located on the downstream side of the pressure guide pipe 5, because the back pressure valve 11 needs a certain pressure to open, the greater air pressure in the air pipe 3 flows to the water tank 4 through the pressure guide pipe 5, so that the water flows out from the water outlet pipe 7 under pressure, and the air pressure on the outlet side of the back pressure valve 11 is lower than that on the inlet side. In actual application, the atomization effect is poor. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a high wind pressure drilling machine water mist dust removal system, through installing the first check valve between the high pressure air pipe and the water tank on the pressure guide pipe, the first check valve adopts the back pressure valve, and the caliber of the water mist mouth is smaller than the pipe diameter of the high pressure air pipe, so that the higher air pressure in the high pressure air pipe is discharged from the water mist mouth, and the lower air pressure enters the water tank to drain water, so that better atomization effect is obtained.

[0005] The utility model provides a kind of high air pressure drilling machine water mist dust removal system, including water tank, pressure guide line and outlet water line, the pressure guide line one end is communicated with water tank, other end is water mist mouth, high pressure gas pipe is connected on the pressure guide line, first check valve is installed on the pressure guide line between high pressure gas pipe and water tank, the outlet water line one end is communicated with the bottom of water tank, other end is connected on the pressure guide line between high pressure gas pipe and water mist mouth, second check valve is installed on the outlet water line;The first check valve uses back pressure valve, the caliber of water mist mouth is less than the pipe diameter of high pressure gas pipe;It further includes inlet water line, the inlet water line is connected with water tank, third check valve is installed on the inlet water line, first valve is installed on the upstream side of third check valve.

[0006] It further includes pressure relief line, the pressure relief line is connected at the upper end of water tank, second valve is installed on the pressure relief line.

[0007] Filter is installed on the inlet water line.

[0008] Third valve is installed on the high pressure gas pipe.

[0009] Fourth valve is installed on the pressure guide line between first check valve and high pressure gas pipe.

[0010] Fifth valve is installed on the outlet water line on the downstream side of second check valve.

[0011] Sewage pipe is further installed on the bottom of water tank, sixth valve is installed on the sewage pipe.

[0012] Safety valve is further installed on the top of water tank.

[0013] Liquid level gauge is installed on the water tank.

[0014] Inlet water bypass pipe is further connected on the inlet water line, both ends of inlet water bypass pipe are connected on the inlet water line on the upstream side of third check valve, booster pump is installed on the inlet water bypass pipe, fourth check valve is installed on the inlet water bypass pipe on the downstream side of booster pump, fifth check valve is installed on the inlet water line between both ends of inlet water bypass pipe.

[0015] Compared with prior art, the utility model has following technical effects:

[0016] 1, the utility model discloses a first check valve by being installed on the pressure guide line between high pressure gas pipe and water tank, first check valve uses back pressure valve, and the caliber of water mist mouth is less than the pipe diameter of high pressure gas pipe, so that the higher gas pressure in high pressure gas pipe is discharged from water mist mouth, lower gas pressure enters water tank to drain, to better atomization effect.

[0017] 2, the utility model still includes pressure relief pipeline, when the first valve opens to inject water, the second valve is opened simultaneously, when the pressure relief pipeline discharges water, it indicates that the water tank is full of water. In addition, when the work is finished and interrupted, the water tank needs to be pressure released, the second valve can also be opened to release pressure.

[0018] 3, the bottom of the water tank of the utility model still is provided with a blowdown pipe, the blowdown pipe is provided with a sixth valve, which is convenient for discharging impurities in the water tank, and is also convenient for emptying water in the water tank after work is finished.

[0019] 4, when the water mist of the water mist port is reduced or disappears, or the water level is observed to be close to the lowest water level through the liquid level meter, the booster pump is opened, the water in the water inlet pipeline is pressurized and pumped into the water tank through the booster pump, so that the water pressure in the water inlet pipeline is reduced, the water cannot enter the water tank, and work is interrupted. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows.

[0021] Figure 1 It is the pipeline diagram of the first embodiment of the utility model.

[0022] Figure 2 It is the pipeline diagram of the second embodiment of the utility model.

[0023] Reference signs:

[0024] Water tank 10, safety valve 11, liquid level meter 12,

[0025] Water inlet pipeline 20, first valve 21, filter 22.

[0026] Third one-way valve 23, water inlet bypass pipe 24, booster pump 25, fourth one-way valve 26, fifth one-way valve 27.

[0027] High-pressure air pipe 30, third valve 31.

[0028] Pressure relief pipeline 40, second valve 41.

[0029] Pressure guide pipeline 50, first one-way valve 51, fourth valve 52, water mist port 53,

[0030] Water outlet pipeline 60, second one-way valve 61, fifth valve 62.

[0031] Blowdown pipe 70, sixth valve 71. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, examples of which are shown in the drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0033] Embodiment 1:

[0034] Please see Figure 1 A high-wind-pressure drilling machine water mist dust removal system, comprising a water tank 10, a pressure guide pipeline 50 and a water outlet pipeline 60, one end of the pressure guide pipeline 50 is communicated with the water tank 10, and the other end is a water mist opening 53, a high-pressure air pipe 30 is connected on the pressure guide pipeline 50, a first one-way valve 51 is installed on the pressure guide pipeline 50 between the high-pressure air pipe 30 and the water tank 10, one end of the water outlet pipeline 60 is communicated with the bottom of the water tank 10, and the other end is connected on the pressure guide pipeline 50 between the high-pressure air pipe 30 and the water mist opening 53, and a second one-way valve 61 is installed on the water outlet pipeline 60; the first one-way valve 51 is a back pressure valve, and the diameter of the water mist opening 53 is smaller than the diameter of the high-pressure air pipe 30; further comprising a water inlet pipeline 20, the water inlet pipeline 20 is connected with the water tank 10, a third one-way valve 23 is installed on the water inlet pipeline 20, and a first valve 21 is installed on the upstream side of the third one-way valve 23. By installing the first one-way valve 51 on the pressure guide pipeline 50 between the high-pressure air pipe 30 and the water tank 10, the first one-way valve 51 is a back pressure valve, and the diameter of the water mist opening is smaller than the diameter of the high-pressure air pipe 30, so that the high air pressure in the high-pressure air pipe 30 is discharged from the water mist opening, and the low air pressure enters the water tank 10 to drain water, thereby achieving better atomization effect.

[0035] In the embodiment, the water tank 10 is used to store water, the high-pressure air pipe 30 is used to communicate with a pressure air source, such as an air compressor; the first one-way valve 51 enables the pressure air to only flow to the water tank 10, and the first one-way valve 51 is a back pressure valve, so that the air pressure on one side of the pressure guide pipeline 50 is high, and the air pressure on the other side is lower than that on the one side of the water mist opening 53; the second one-way valve 61 enables the water to only flow to the one side of the water mist opening 53; the water inlet pipeline 20 is used to inject water into the water tank 10, the third one-way valve 23 enables the water in the water inlet pipeline 20 to only flow to the water tank 10, and the first valve 21 is used to open and close the water inlet pipeline 20.

[0036] Further, in order to more conveniently inject water into the water tank 10, the water mist dust removal system further comprises a pressure relief pipeline 40. The pressure relief pipeline 40 is connected to the upper end of the water tank 10, and a second valve 41 is installed on the pressure relief pipeline 40. When the first valve 21 is opened to inject water, the second valve 41 is also opened, and when the pressure relief pipeline 40 discharges water, it indicates that the water tank 10 is full of water. In addition, when the work is finished and interrupted, the second valve 41 can be opened to relieve the pressure of the water tank 10.

[0037] Further, in order to filter the water, to prevent impurities from blocking the pipeline system, a filter 22 is installed on the water inlet pipeline 20. In this embodiment, the filter 22 is a Y-shaped filter.

[0038] In order to facilitate the adjustment of the flow of pressurized air in the high-pressure air pipe 30, a third valve 31 is installed on the high-pressure air pipe 30.

[0039] In order to facilitate the adjustment of the flow of pressurized air into the water tank 10, a fourth valve 52 is installed on the pressure guide pipeline 50 between the first one-way valve 51 and the high-pressure air pipe 30.

[0040] In order to facilitate the adjustment of the flow of water in the water outlet pipeline 60, a fifth valve 62 is installed on the water outlet pipeline 60 downstream of the second one-way valve 61.

[0041] Further, in this embodiment, a sewage pipe 70 is also installed at the bottom of the water tank 10, and a sixth valve 71 is installed on the sewage pipe 70. This facilitates the removal of impurities in the water tank 10, and also facilitates the emptying of the water in the water tank 10 after work is completed.

[0042] Further, a safety valve 11 is installed on the top of the water tank 10. When the pressure in the water tank 10 exceeds the preset pressure of the safety valve 11, the safety valve 11 automatically opens to release the pressure in the water tank 10, preventing the water outlet pipeline 60 from being blocked and causing a safety accident.

[0043] Further, a liquid level gauge 12 is installed on the water tank 10. This facilitates the observation of the water level in the water tank 10. The liquid level gauge 12 can be a UHC series high-pressure side basic type magnetic flap liquid level gauge.

[0044] In this embodiment, the first valve 21, the second valve 41, the third valve 31, the fourth valve 52, the fifth valve 62 and the sixth valve 71 can be stop valves or ball valves.

[0045] Embodiment 2:

[0046] Because the water tank 10 is filled with pressurized air through the pressure guide pipeline 50, there is pressure in the water tank 10. If the pressure of the tap water decreases, for example, if other water users on the tap water pipeline are continuously using water, the pressure of the tap water in the water inlet pipeline 20 decreases, and the water pressure cannot open the third one-way valve 23, so water cannot enter the water tank 10, and if the water level continues to drop, it may cause work interruption.

[0047] Therefore, on the basis of Embodiment 1, referring to Figure 2The water inlet pipeline 20 is also connected with a water inlet bypass pipe 24, two ends of the water inlet bypass pipe 24 are connected on the upstream side of the third one-way valve 23 of the water inlet pipeline 20, a booster pump 25 is installed on the water inlet bypass pipe 24, a fourth one-way valve 26 is installed on the water inlet bypass pipe 24 on the downstream side of the booster pump 25, and a fifth one-way valve 27 is installed on the water inlet pipeline 20 between the two ends of the water inlet bypass pipe 24. When the water mist of the water mist opening 53 is reduced or disappears, or the water level is observed to be close to the lowest water level through the liquid level meter 12, the booster pump 25 is started, and the water in the water inlet pipeline 20 is pressurized and pumped into the water tank 10 through the booster pump 25.

[0048] The working principle or action process of the utility model is as follows:

[0049] 1. Water tank 10 adds water: before work, open the first valve 21, at this time, the sixth valve 71 is closed, open the second valve 41, the water tank is pressure relief, tap water passes through the filter 22 and the third one-way valve 23 into the water tank 10, until the excess water in the pressure relief pipeline 40 overflows, and the second valve 41 is closed.

[0050] 2. Merging into mist: open the third valve 31, the fourth valve 52 and the fifth valve 62, at this time, the high-pressure gas is divided into two ways: one way is to enter the water tank 10 through the first one-way valve 51 to pressurize the water in the water tank 10, and the water in the water tank 10 is connected to the pressure guide pipeline 50 through the fifth valve 62; the other way is to merge into the high-pressure water pipeline. When merging, the high-pressure water is blown by the high-pressure gas to form water mist in the water mist opening 53. The opening degree of the third valve 31 is manually adjusted to adjust the water mist, so that the water mist is neither droplet nor flow. If the water mist is droplet or flow, the drilling slag will be bonded into mud with the water droplet, so that the drilling dust and slag are difficult to be washed away from the hole by the high-pressure water mist, and the drill rod is easy to be stuck.

[0051] After the water mist system is started, the water tank is in a high-pressure state, if the water inlet pressure in the water inlet pipeline 20 is reduced, the water cannot be supplemented into the water tank 10, then the booster pump 25 is used to supplement water, so that the work is not interrupted.

[0052] 3. Replacing drill rod: when the drill rod is replaced, the third valve 31 is closed, and the fifth valve 62 is also closed. Due to the action of the first one-way valve 51, at this time, the water cannot enter the drill rod through the pressure guide pipeline 50, so that the water flow does not affect the replacement of the drill rod.

[0053] 4. Pressure relief and sewage discharge: when the work is finished or interrupted accidentally, the water mist system must be pressure relieved by opening the second valve 41, and the sixth valve 71 is opened to discharge the excess water and dirt in the water tank 10.

Claims

1. A high-wind-pressure drilling rig water mist dust removal system comprising a water tank (10), a pressure guide pipeline (50) and a water outlet pipeline (60), characterized in that: One end of the pressure guide pipeline (50) is communicated with the water tank (10), and the other end is a water mist opening (53). The pressure guide pipeline (50) is connected with the high-pressure gas pipeline (30). The first one-way valve (51) is installed on the pressure guide pipeline (50) between the high-pressure gas pipeline (30) and the water tank (10). One end of the water outlet pipeline (60) is communicated with the bottom of the water tank (10), and the other end is connected on the pressure guide pipeline (50) between the high-pressure gas pipeline (30) and the water mist opening (53). The second one-way valve (61) is installed on the water outlet pipeline (60). The first one-way valve (51) is a back pressure valve. The diameter of the water mist opening (53) is smaller than the diameter of the high-pressure gas pipeline (30). The water inlet pipeline (20) is connected with the water tank (10). The third one-way valve (23) is installed on the water inlet pipeline (20). The first valve (21) is installed on the upstream side of the third one-way valve (23).

2. A high-wind-pressure rig water mist dust suppression system according to claim 1, characterized in that: The pressure relief pipeline (40) is connected with the upper end of the water tank (10). The second valve (41) is installed on the pressure relief pipeline (40).

3. A high-wind-pressure drilling rig water mist dust suppression system according to claim 1, characterized in that: The filter (22) is installed on the water inlet pipeline (20).

4. A high-wind-pressure rig water-mist dust-removal system according to claim 1, characterized in that: The third valve (31) is installed on the high-pressure gas pipeline (30).

5. A high-wind-pressure rig water-mist dust-removal system according to claim 1, characterized in that: The fourth valve (52) is installed on the pressure guide pipeline (50) between the first one-way valve (51) and the high-pressure gas pipeline (30).

6. A high-wind pressure rig water mist dust suppression system as defined in claim 1, wherein: The fifth valve (62) is installed on the water outlet pipeline (60) on the downstream side of the second one-way valve (61).

7. A high-wind-pressure rig water-mist dust-removal system according to claim 1, characterized in that: The sewage pipeline (70) is installed on the bottom of the water tank (10). The sixth valve (71) is installed on the sewage pipeline (70).

8. A high-wind pressure drilling rig water mist dust suppression system as defined in claim 1, wherein: The safety valve (11) is installed on the top of the water tank (10).

9. A high-wind-pressure rig water-mist dust-elimination system according to claim 1, characterized in that: The liquid level meter (12) is installed on the water tank (10).

10. A high-wind-pressure drilling rig water mist dust suppression system according to claim 1 or 9, characterized in that: The water inlet bypass pipeline (24) is connected on the water inlet pipeline (20) on the upstream side of the third one-way valve (23). The booster pump (25) is installed on the water inlet bypass pipeline (24). The fourth one-way valve (26) is installed on the water inlet bypass pipeline (24) on the downstream side of the booster pump (25). The fifth one-way valve (27) is installed on the water inlet pipeline (20) between the two ends of the water inlet bypass pipeline (24).

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