WO2021208431A1

WO2021208431A1 - Cyclone foam integrated drilling and dust removal device and use method for the device

Info

Publication number: WO2021208431A1
Application number: PCT/CN2020/129933
Authority: WO
Inventors: 张孝强; 胡博林; 潘园园; 杨丽; 张武林; 李旭; 尹江江
Original assignee: 湘潭大学
Priority date: 2020-04-16
Filing date: 2020-11-19
Publication date: 2021-10-21
Also published as: CN111535761A

Abstract

A cyclone foam integrated drilling and dust removal device and a use method for the device. The device comprises an orifice dust exhaust unit and a secondary treatment and recovery unit; the orifice dust exhaust unit is used to remove large-particle-size dust generated during the drilling process; the secondary treatment and recovery unit comprises a gas amplification mechanism (6), a cyclone dust remover (8), a spray dust remover and a laser dust measurement mechanism (10); the gas amplification mechanism (6) is located on a pipeline connected between the orifice dust exhaust unit and the cyclone dust remover (8); and the cyclone dust remover (8) comprises a container body, the lower half part of the container body is taper-shaped, the upper half part is inverted taper-shaped, and the gas flow subjected to cyclone treatment is exhausted by means of a gas outlet. According to the device, dust is captured according to the principles of centrifugation and foam dust removal, the cyclone dust remover and the spray dust remover are configured for dust removal, an optical sensor is configured for regulating and controlling operation of a foam generator, being able to achieve convenient, intelligent and efficient dust removal.

Description

Cyclone foam integrated drilling dust removal device and use method of the device

Technical field

The invention belongs to the technical field of mine drilling and dust removal, and specifically relates to a dust removal device.

Background technique

In the coal mining process, gas drainage drilling is often used to reduce accidents, and drilling operations are inevitable. In addition, it also includes preventing the impact of the ground from compressing dangerous drilling, bolting and supporting. A large amount of dust is generated during the drilling operation, which pollutes the production environment and harms the physical and mental health of employees. It is also very easy to form hidden dangers of coal dust combustion and explosion, which seriously threatens coal mine production and the lives of employees.

At present, the more commonly used dust removal devices have the characteristics of complex structure, polluted work space, difficult maintenance, and low dust removal efficiency. In summary, two types of dust removal devices are mainly used for drilling operations: one is dry dust removal devices. The dry dust removal device of the drilling rig is mainly composed of the following parts: settling chamber, dust hood, bag filter and ventilator, etc. It is suitable for drilling high gas outburst coal seams or soft coal seams. The dry dust removal device does not use water, the slag discharge is good at the bottom of the hole, and the porosity is high, but the later maintenance of the equipment itself is relatively difficult, which can easily lead to secondary dust pollution; the second is the wet dust removal device. The wet dust removal device of the drilling rig is mainly composed of the following parts: water supply device, orifice slag discharge device and wind-water mixing device. The advantages of this kind of dust removal device can be maximized under relatively humid conditions. The wet dust removal device has disadvantages such as poor slag discharge conditions for humidification at the bottom of the hole, difficulty in controlling the pressure and water volume, and uneven mixing of wind and water.

The research reports on dust removal devices in the prior art mainly include:

Application No. 201710226499.1 discloses a device and process for preparing a magnetized foam for purifying industrial dust-containing airflow. It generates an AC magnetic field through electrodes to oscillate and magnetize the pressure water in a curved pipeline to form magnetized water. At the outlet of the jet nozzle of the bubble device, a high-speed jet is formed, and the pressure drops to the saturated vapor pressure of the liquid. At the outlet of the jet throat, a low pressure zone is formed. The outside air is automatically sucked in through the wall opening. The high-speed magnetized foam liquid sprayed from the net and throat is spread out on the cone net, and the inhaled air continuously blows the leaf film to bubble, forming a large number of fine magnetized foam, which is transported to the industrial spray tower by the pipeline.

Application number 201821173912.9 discloses a coal mine borehole magnetized foam cyclone dust removal system, including a dust cover, a gas and dust mixture conveying pipe, a cyclone foam dust removal device, an air outlet pipe, a magnetized foam conveying pipe, a magnetized foam nozzle, a foam generator, Foaming liquid conveying pipe, foaming liquid storage tank, water inlet pipe, air conveying pipe.

The above-mentioned dust removal equipment in the prior art can remove dust, but its dust removal effect needs to be further improved. Therefore, it is urgent to study a drilling dust removal device with simple structure, high applicability, good dust removal effect, and no pollution to the working space. Difficult problem.

Technical solutions

One of the objectives of the present invention is to provide a cyclone foam integrated drilling dust removal device, which can achieve the purpose of convenient, intelligent and efficient dust removal.

In order to achieve the above-mentioned purpose, the present invention mainly uses the principle of centrifugal and foam dust removal to collect dust, uses cyclone dust collectors and spray dust collectors to remove dust, and uses light sensors to control the work of the foam generator. "The three cooperate with each other to achieve convenient, intelligent and efficient dust removal.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

A cyclone foam integrated drilling dust removal device includes an orifice dust exhaust unit and a secondary processing recovery unit. The orifice dust exhaust unit is used to remove large-size dust generated during the drilling process. The secondary processing recovery unit includes a gas amplifying mechanism, a cyclone dust collector, a spray dust collector, and a laser dust measuring mechanism. The cyclone dust collector is connected to the orifice dust exhaust unit for exhausting dust from the orifice. The remaining dust in the unit undergoes secondary treatment;

The gas amplifying mechanism is located on the pipe connecting the orifice dust exhaust unit and the cyclone dust collector, and the amplifying mechanism uses compressed air as a power source to drive the surrounding air to flow to form a high-pressure, high-speed airflow ；

The cyclone dust collector includes a container body, the lower half of the container body is cone-shaped, and the upper half of the container body is an inverted cone. A dust outlet is provided at the bottom of the container body. The top is provided with a gas outlet, the dust-containing air flow passing through the amplifying mechanism enters the cyclone dust collector, and the air flow after the cyclone treatment is discharged through the gas outlet;

The gas outlet is connected to the spray dust collector through a hose, the laser dust measuring mechanism is arranged on the hose, and the laser dust measuring mechanism is used to measure the dust concentration. The spray dust collector removes dust by spraying foam into the dust.

As a preferred solution of the present invention, the above-mentioned hole dust removal unit includes a drill pipe, a drill, a four-way valve, and a pneumatic hole sealing device. The above-mentioned pneumatic hole sealing device is fixed at the hole of the drill hole. The front part is connected to the above-mentioned four-way valve, the tail part of the above-mentioned drill rod is connected to the above-mentioned drilling rig, and the above-mentioned four-way valve is provided with two horizontal outlets and two vertical outlets. The above-mentioned cyclone dust collector is connected to the pipe connection, the two vertical outlets are located at the top and the bottom respectively, the vertical outlet at the bottom is used to discharge large-size dust, and the vertical outlet at the top is provided with a brush; The brush extends downward through the vertical outlet, and the brush is wrapped on the outer diameter of the drill rod. When the drill rod rotates, the brush just cleans the dust on the drill rod.

As another preferred solution of the present invention, the above-mentioned gas amplifying mechanism includes an air amplifier, compressed air, an air inlet ring, an air outlet ring, and a lock nut. The above-mentioned gas amplifying mechanism utilizes the Coanda effect and uses compressed air as a power source. To drive the surrounding air flow to form a high-pressure, high-speed airflow.

Further preferably, the above-mentioned laser dust measuring mechanism includes a microcomputer laser dust meter, a laser transmitter and a light receiver. The above microcomputer laser dust meter is arranged on the side close to the cyclone dust collector, and the above light receiver is located near the spray dust collector. One side is installed, the above-mentioned laser transmitter is located between the two; the above-mentioned light receiver is used to convert the received signal into an electric signal to guide the above-mentioned spray dust collector to work, and the above-mentioned microcomputer laser dust meter is used to measure the dust The size of the concentration.

Further preferably, the wall of the above-mentioned spray dust collector is provided with several spray ports, and the bottom is provided with an outlet, and the mixture of fine dust and water is discharged through the above-mentioned outlet, and the top of the above-mentioned spray dust collector is connected with a gas drain equipment.

Further preferably, the above-mentioned hair brush extends downward through the above-mentioned vertical outlet, and the above-mentioned hair brush is wrapped on the outer diameter of the above-mentioned drill rod. When the above-mentioned drill rod is rotated, the above-mentioned hair brush just cleans the above-mentioned drill rod. On the dust.

Another object of the present invention is to provide a method for using the above cyclone foam integrated drilling dust removal device, which sequentially includes the following steps:

a. Use the orifice dust exhaust unit to block the orifice of the drilled hole;

b. Prepare a gas amplification mechanism, use the Coanda effect, use compressed air as a power source, and drive the surrounding air to flow to form a high-pressure, high-speed airflow;

c. The airflow passing through the gas amplifying mechanism enters the cyclone dust collector for cyclone dust removal, a part of the dust is discharged from the dust outlet at the bottom of the cyclone dust collector, and the gas is discharged from the gas outlet at the top of the cyclone dust collector;

d. The gas enters the spray dust collector after passing through the laser dust measuring mechanism;

e. In the spray dust collector, the foam nozzle is spirally arranged on the wall along the rising direction of the airflow to remove fine dust in layers and steps, and the mixture of fine dust and water is discharged from the outlet at the bottom of the spray dust collector.

More preferably, in step a, the orifice is fixed with an air pressure hole sealer. When the drill rod is rotating, the brush set on the outer diameter of the drill rod just sweeps away the dust on the drill rod, and the large-size dust comes from the outlet at the bottom of the four-way valve. discharge.

Further preferably, in step c, the airflow passing through the gas amplifying mechanism enters the cyclone dust collector and makes a rotating movement from top to bottom. When reaching the reflecting screen of the lower half of the cyclone dust collector, most of the gas forms an upper cyclone airflow Exhaust, the gas close to the wall of the cyclone dust collector enters the ash hopper from the annular gap between the reflective screen of the lower half and the inverted cone of the upper half, and the dust-containing gas entering the ash hopper is separated from the dust. The ventilation hole in the center of the reflective screen discharges upwards, merges with the ascending main airflow, and discharges through the gas outlet.

Further preferably, in step d, after the gas passes through the laser emitter of the laser dust measuring mechanism, the light enters the light receiver, and the light is blocked by the change of the dust concentration, and the signal is received by the light receiver and converted into an electric signal to guide the spray dust collector to generate Function, and monitor the dust concentration through the microcomputer laser dust meter.

Beneficial effect

Compared with the prior art, the present invention brings the following beneficial technical effects:

The invention proposes a cyclone foam integrated drilling dust removal device, based on the premise of gas extraction and coal seam drilling, adopts the principle of centrifugal and foam dust removal to collect dust, and seals the borehole opening with an air pressure hole sealer before drilling the borehole. , The air pressure hole sealer is connected with the four-way valve of the orifice and the gas amplification mechanism through the pipeline, and the cyclone dust collector and the gas amplification mechanism are opened. Start drilling after all parts are stabilized. Dust generated during drilling enters the orifice four-way valve. The orifice four-way valve has a brush with the inner hole and the outer diameter of the drill pipe to separate the larger dust initially, and the large dust falls into the vertical outlet at the bottom. middle. Then through the gas amplifying mechanism, since the air pressure hole sealer has been sealed, the airflow whose speed has been amplified enters the cyclone dust collector through the hose. Due to the unique inverted cone and reflective screen structure of the cyclone dust collector, the returning airflow prevents the dust from being re-wound. Improve the efficiency of dust removal. The setting of the cyclone dust collector greatly reduces the dust content of the air flow. The airflow from the cyclone dust collector passes through the laser dust measuring mechanism to cause the foam and the spray dust collector to react, and the foam dust can almost capture all the dust in contact with it. After the dust is separated, the gas is discharged from the gas drainage port into the gas drainage pipeline.

The system of the invention is simple, the construction is simple and easy to implement. The dust removal is carried out by the cyclone dust collector and the spray dust removal method, and the dust removal efficiency is greatly improved. The laser transmitter and the light receiver are also used to control the spray dust collector, which is more intelligent and efficient For dust removal.

Description of the drawings

The present invention will be further explained below in conjunction with the accompanying drawings:

Figure 1 is a schematic structural diagram of a cyclone foam integrated drilling dust removal device of the present invention;

Figure 2 and Figure 3 are schematic diagrams of the structure of the four-way valve of the present invention;

4 is a schematic diagram of the structure of the laser dust measuring mechanism and the spray dust collector of the present invention;

In the picture:

1. Air pressure sealing device, 2. Vertical outlet at the bottom, 3. Brush, 4. Four-way valve, 5. Drill pipe, 6. Gas amplifying mechanism, 7. Compressed air, 8. Cyclone dust collector, 9. The outlet at the bottom of the spray dust collector, 10, laser dust measuring mechanism, 11, the first spray port, 12, the second spray port, 13, the third spray port, 14, the fourth spray port, 15, the mixture of fine dust and water , 61, laser transmitter, 62, light receiver.

Embodiments of the present invention

Unless otherwise expressly stated otherwise, throughout the specification and claims, the term "comprising" or its transformations such as "comprising" and the like will be understood as including the stated parts or components, but not excluding other parts or components. Other components.

The invention discloses a cyclone foam integrated drilling dust removal device and a method of using the device. In order to make the advantages and technical solutions of the invention clearer and clearer, the invention will be described in detail below with reference to specific embodiments.

The main difference between the present invention and the prior art lies in the use of centrifugal and foam dust removal principles to collect dust, and the use of a diffuse tangential flow reversal cyclone dust removal device and a spray dust removal device for dust removal.

As shown in Figure 1, the cyclone foam integrated drilling dust removal device of the present invention includes an orifice dust exhaust unit and a secondary treatment recovery unit. The orifice dust exhaust unit is used to remove large-size dust generated during the drilling process Removal, the secondary processing recovery unit is used to remove a part of the remaining dust, which is equivalent to the two-step method of the present invention to achieve dust removal.

The orifice dust exhaust unit includes the air pressure hole sealing device 1, the four-way valve 4, the brush 3, and the drill pipe 6, wherein the air pressure hole sealing device is fixed at the hole of the drill hole, and the front part of the drill pipe is connected with the four way valve 4. The tail of the drill pipe is connected to the above-mentioned drilling rig. The four-way valve is provided with two horizontal outlets and two vertical outlets. The outlets are located at the top and the bottom respectively, the vertical outlet 2 at the bottom is used to discharge large-size dust, and the vertical outlet at the top is provided with a brush. As shown in Figure 2 and Figure 3, the brushes extend downward through the above-mentioned vertical outlet, and the brushes are wrapped on the outer diameter of the drill rod. When the drill is started, the drill rod is driven to rotate, and then the brush is located on the periphery of the drill rod. It also rotates along with it, and just removes the dust on the above-mentioned drill rod. Therefore, in the present invention, it is preferable that the brush is circular, with a circular hole in the middle for allowing the drill rod to pass through, and the inner diameter of the circular hole matches the outer diameter of the drill rod. The large-size dust is discharged through the orifice dust discharge unit, and the other part of the dust enters the secondary treatment recovery unit for further processing.

Secondary processing and recovery unit, including gas amplifying mechanism 6, cyclone dust collector 8, spray dust collector and laser dust measuring mechanism 10. The gas amplifying mechanism 6 mainly includes air amplifier, compressed air 7, air inlet ring, air outlet ring and locking The nut and the gas amplifying mechanism use the Coanda effect and use compressed air as the power source to drive the surrounding air to flow to form a high-pressure, high-speed airflow. One outlet of the four-way valve 4 is connected to the cyclone 8 through a pipe, which is preferably a hose. The gas amplification mechanism is located on the hose.

The cyclone dust collector 8 includes a container body. The lower part of the container body is cone-shaped and the upper part is inverted cone-shaped. The bottom of the container body is provided with a dust outlet, and the top of the container body is provided with a gas outlet. The airflow passing through the gas amplifying mechanism enters the cyclone dust collector and rotates from top to bottom. When it reaches the reflecting screen of the lower part of the cyclone dust collector, most of the gas forms an upper cyclone airflow and is discharged, which is close to the gas on the cyclone dust collector wall. Enter the ash hopper from the annular gap between the reflective screen of the lower half and the inverted cone of the upper half, and the dust-containing gas entering the ash hopper is separated from the dust. After the main gas flows merge, they are discharged through the gas outlet.

As shown in Figure 4, the laser dust measuring mechanism is set on the hose connecting the cyclone dust collector and the spray dust collector. The laser dust measuring mechanism includes a microcomputer laser dust meter, a laser transmitter 61 and a light receiver 62. Set on the side close to the cyclone dust collector, the light receiver is set on the side close to the spray dust collector, and the laser transmitter is located between the two; the above light receiver is used to convert the received signal into an electric signal to guide the spray dust collector When it works, the microcomputer laser dust meter is used to determine the concentration of dust. The laser dust measurement mechanism is used to determine the concentration of dust.

The spray dust collector is provided with several spray ports on its wall, such as the first spray port 11, the second spray port 12, the third spray port 13, and the fourth spray port 14 which are preferably provided in the present invention. The mixture 15 is discharged through the outlet 9 at the bottom of the spray dust collector, and a gas drainage device is connected to the top of the spray dust collector.

The above-mentioned method for using the cyclone foam integrated drilling dust removal device, the specific steps are:

The first step is to seal the hole of the drilled hole with the hole dust exhaust unit. The specific steps are: fix the hole with a pneumatic hole sealer. When the drill rod is rotating, the brush set on its outer diameter can just sweep the drill. The dust on the rod, large particle size dust is discharged from the outlet at the bottom of the four-way valve;

The second step is to prepare a gas amplifying mechanism, use the wall effect, and use compressed air as the power source to drive the surrounding air to flow to form a high-pressure, high-speed airflow;

The third step, the airflow passing through the gas amplifying mechanism enters the cyclone dust collector for cyclone dust removal, the airflow passing through the gas amplifying mechanism enters the cyclone dust collector, making a rotating movement from top to bottom, and reaching the lower half of the cyclone dust collector When the reflective screen is formed, most of the gas is discharged as an upper cyclone. The gas close to the cyclone wall enters the ash hopper through the annular gap between the bottom half of the reflective screen and the upper half of the inverted cone, and enters the ash hopper. The dust-containing gas is separated from the dust, and the purified air flow is discharged upward through the vent hole in the center of the reflective screen, merges with the rising main air flow, and is discharged through the gas outlet;

The fourth step, after the gas passes through the laser transmitter of the laser dust measuring mechanism, the light enters the light receiver, and the light is blocked by the change of dust concentration. The signal is received by the light receiver and converted into electrical signals to guide the spray dust collector to work. The microcomputer laser dust meter is used to monitor the dust concentration, and the gas enters the spray dust collector after passing through the laser dust measuring mechanism;

In the fifth step, in the spray dust collector, the foam nozzles are spirally arranged on the wall along the rising direction of the airflow to remove fine dust in layers and steps, and the mixture of fine dust and water is discharged from the outlet at the bottom of the spray dust collector.

The present invention will be further described below in conjunction with specific embodiments.

Example 1:

In a coal and gas outburst mine, the absolute gas emission from the mine is 58.85 m ³ /min, and the relative gas emission is 32.29 m ³ /t. The mine adopts vertical shaft development, single-level mining up and down, the main shaft elevation is +37.5 m, the production level is -850 m, and the mining depth is about 930 m. The maximum gas pressure of the coal seam is 9.2 MPa (elevation -973.7 m). It is difficult to control gas disasters.

The cyclone foam integrated drilling dust removal device specifically includes the following steps:

Step 1. Put the air pressure hole sealer into the borehole to start inflation. The inflation gas source is the downhole air pressure system, and the inflation pressure is usually 0.2～0.3 MPa. Then connect the input port of the coal dust treatment device and the hole sealer by the dust conveying connection pipeline;

Step 2. After turning on the water and air sources, the device starts to start, and check the operation of coal dust treatment. When the components are running normally, start the drilling rig after idling for 1 minute to start drilling;

Step 3: Use a cyclone dust collector to remove dust, and collect dust concentration data before and after dust removal;

Step 4. The concentration of dust before entering the device is 180～200 mg·m ^-3 . After entering the orifice cross, the dust particles with larger particle size are swept away due to the action of the brush and enter the dust bag; other dust enters the soft The tube enters the cyclone dust collector after passing through the gas amplifying mechanism, the inlet air velocity is 10-20 m/s, the dust removal efficiency reaches 80%, and the dust concentration is 40-50 mg·m ^-3 measured by the microcomputer laser dust meter; Entering the spray dust collector, the foam dust can almost capture all the dust in contact with it, and the dust concentration after exiting the device is 15-16 mg·m ^-3 , indicating that the dust removing device of the present invention has a good dust removal effect.

The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto.

Although terms such as gas amplifying mechanism, cyclone dust collector, spray dust collector are used more in this article, it does not exclude the possibility of using other terms. These terms are only used to describe and explain the essence of the present invention more conveniently. ; Interpreting them as any additional restriction is contrary to the spirit of the present invention.

It should be further explained that the specific embodiments described in this document are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the specific embodiments described or use similar alternatives, but they will not deviate from the spirit of the present invention or exceed the definition of the appended claims. Range.

Claims

A cyclone foam integrated drilling dust removal device, which includes an orifice dust exhaust unit and a secondary processing recovery unit. The orifice dust exhaust unit is used to remove large-size dust generated during the drilling process. Lies in:

The secondary processing recovery unit includes a gas amplifying mechanism, a cyclone dust collector, a spray dust collector, and a laser dust measuring mechanism. The cyclone dust collector is connected to the orifice dust exhaust unit for exhausting dust from the orifice. The remaining dust in the unit undergoes secondary treatment;

The gas amplifying mechanism is located on the pipe connecting the orifice dust exhaust unit and the cyclone dust collector, and the amplifying mechanism uses compressed air as a power source to drive the surrounding air to flow to form a high-pressure, high-speed airflow ；

The cyclone dust collector includes a container body, the lower half of the container body is cone-shaped, and the upper half of the container body is an inverted cone. A dust outlet is provided at the bottom of the container body. The top is provided with a gas outlet, the dust-containing air flow passing through the amplifying mechanism enters the cyclone dust collector, and the air flow after the cyclone treatment is discharged through the gas outlet;

The gas outlet is connected to the spray dust collector through a hose, the laser dust measuring mechanism is arranged on the hose, and the laser dust measuring mechanism is used to measure the dust concentration. The spray dust collector removes dust by spraying foam into the dust.
The cyclone foam integrated drilling dust removal device according to claim 1, characterized in that: the orifice dust removal unit includes a drill rod, a drill, a four-way valve and a pneumatic hole sealer, and the pneumatic seal The hole device is fixed at the hole of the drilled hole, the front part of the drill rod is connected with the four-way valve, the tail part of the drill rod is connected with the drill, and the four-way valve is provided with two transverse The outlet and two vertical outlets, the two horizontal outlets are respectively connected with the air pressure sealer and the pipe connected with the cyclone dust collector, the two vertical outlets are located at the top and the bottom, and the vertical outlet is located at the bottom. It is used to discharge large particle size dust, and a brush is provided at the vertical outlet at the top; the brush extends downward through the vertical outlet, and the brush is wrapped in the drill pipe. On the outer diameter, when the drill rod rotates, the brush just sweeps away the dust on the drill rod.
The cyclone foam integrated drilling dust removal device according to claim 2, wherein the gas amplifying mechanism includes an air amplifier, compressed air, an air inlet ring, an air outlet ring and a lock nut, and the gas The amplifying mechanism uses the Coanda effect and uses compressed air as a power source to drive the surrounding air to flow to form a high-pressure, high-speed airflow.
The cyclone foam integrated drilling dust removal device according to claim 3, wherein the laser dust measuring mechanism includes a microcomputer laser dust meter, a laser transmitter and a light receiver, and the microcomputer laser dust meter Set on the side close to the cyclone dust collector, the light receiver is set on the side close to the spray dust collector, and the laser transmitter is located between the two; the light receiver is used to receive the signal It is converted into an electric signal to guide the spray dust collector to work, and the microcomputer laser dust meter is used to measure the concentration of dust.
The cyclone foam integrated drilling dust removal device according to claim 4, characterized in that: the wall of the spray dust collector is provided with a plurality of spray openings, and the bottom of the spray dust collector is provided with an outlet for the separation of fine dust and water. The mixture is discharged through the outlet, and a gas drainage device is connected to the top of the spray dust collector.
The cyclone foam integrated drilling and dust removal device according to claim 2, wherein the brush extends downward through the vertical outlet, and the brush is wrapped in the drill pipe On the outer diameter of the drill rod, when the drill rod rotates, the brush just sweeps away the dust on the drill rod.
The method for using a cyclone foam integrated drilling dust removal device according to any one of claims 1 to 6, characterized in that it comprises the following steps in sequence:

a. Use the orifice dust exhaust unit to block the orifice of the drilled hole;

b. Prepare a gas amplification mechanism, use the Coanda effect, use compressed air as a power source, and drive the surrounding air to flow to form a high-pressure, high-speed airflow;

c. The airflow passing through the gas amplifying mechanism enters the cyclone dust collector for cyclone dust removal, a part of the dust is discharged from the dust outlet at the bottom of the cyclone dust collector, and the gas is discharged from the gas outlet at the top of the cyclone dust collector;

d. The gas enters the spray dust collector after passing through the laser dust measuring mechanism;

e. In the spray dust collector, the foam nozzle is spirally arranged on the wall along the rising direction of the airflow to remove fine dust in layers and steps, and the mixture of fine dust and water is discharged from the outlet at the bottom of the spray dust collector.
The method of using a cyclone foam integrated drilling dust removal device according to claim 7, characterized in that: in step a, the orifice is fixed with a pneumatic sealer, and the drill rod is set on its outer diameter when rotating The brush just sweeps away the dust on the drill pipe, and the large-size dust is discharged from the outlet at the bottom of the four-way valve.
The method of using a cyclone foam integrated drilling dust removal device according to claim 7, characterized in that: in step c, the airflow passing through the gas amplification mechanism enters the cyclone dust collector, and rotates from top to bottom. When reaching the reflecting screen of the lower part of the cyclone dust collector, most of the gas is discharged as an upper cyclone. The gas close to the wall of the cyclone dust collector is formed between the reflecting screen of the lower part and the inverted cone of the upper part. The annulus enters the ash hopper, and the dust-containing gas entering the ash hopper is separated from the dust. The purified air flow is discharged upward through the central vent hole of the reflective screen, and is discharged through the gas outlet after converging with the rising main air flow.
The method of using a cyclone foam integrated drilling dust removal device according to claim 7, characterized in that: in step d, after the gas passes through the laser transmitter of the laser dust measuring mechanism, the light enters the light receiver and passes through the dust concentration The change causes the light to be blocked, the signal is received by the light receiver and converted into an electric signal to guide the spray dust collector to work, and the dust concentration is monitored by the microcomputer laser dust meter.