Bubble generating device for suppressing dust

Abstract

The invention discloses a bubble generation device for inhibiting dust, which relates to the technical field of dust treatment and comprises a bubble solution preparation module and a bubble preparation module. Wherein the bubble solution preparation module comprises a mucus tank, a water supply structure and a bubble solution tank. The mucus tank is used for storing mucus. The mucus tank is used for supplying mucus to the bubble solution tank, the water supply structure is used for supplying water to the bubble solution tank, and the bubble solution tank is used for containing a bubble solution formed by mixing the mucus and water. The bubble preparation module comprises a bubble generator and a pressure storage tank. The bubble solution tank is used for supplying bubble solution to a liquid inlet of the bubble generator, the pressure storage tank is used for supplying gas to a gas inlet of the bubble generator, and an outlet of the bubble generator is used for generating bubbles. Compared with the prior art, dust is adsorbed through the bubble solution containing mucus, the contact area between the bubble solution and air is increased through the shape of bubbles, the bubble solution per unit volume can adsorb more dust, and therefore mine dust is better inhibited.

Description

Technical Field

[0001] The present invention relates to the technical field of dust treatment, and in particular to a bubble generating device for suppressing dust. Background Art

[0002] Minerals are important resources needed for national life and production. At present, my country consumes about 6 billion tons of mineral raw materials each year, which supports the operation of about 60% of the gross national product and provides a strong guarantee for my country's economic construction. According to the statistical bulletin on the development of my country's health and health care industry, a total of 17,064 new cases of various occupational diseases were reported nationwide in 2020, including 14,367 new cases of occupational pneumoconiosis, accounting for about 84%, and 6,668 deaths due to pneumoconiosis. In developed countries, cases of pneumoconiosis also show an increasing trend year by year. From 1968 to 2015, more than 70,000 coal miners died of pneumoconiosis in the United States, and a large number of new cases of pneumoconiosis or silicosis were reported. In addition to the low content of SiO2 in coal mine dust, most of the free SiO2 in dust from other mines and quarrying industries is between 10% and 40%, causing employees to suffer from occupational diseases such as silicosis and pneumoconiosis.

[0003] Coal mining is mostly done in closed underground spaces. A large amount of dust is generated during production activities such as comprehensive mining and tunneling. At present, negative pressure ventilation dust collectors and water spraying are mainly used to suppress dust at underground work sites. Because underground work sites are difficult to close, the tunneling work surface is wide and the air volume is large, the negative pressure ventilation dust removal effect is not good; water spraying is difficult to wet fine dust particles, and under the action of water spraying power, the dust spreads around, resulting in a larger pollution surface. Therefore, how to quickly control dust in comprehensive mining, tunneling and other work sites is a technical problem faced by the entire industry. Summary of the invention

[0004] The object of the present invention is to provide a bubble generating device for suppressing dust, so as to solve the problems existing in the above-mentioned related technologies and suppress mine dust.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention discloses a bubble generating device for suppressing dust, comprising:

[0007] A bubble solution preparation module, the bubble solution preparation module comprising a mucus tank, a water supply structure and a bubble solution tank; the mucus tank is used to store mucus; the mucus tank is used to supply mucus to the bubble solution tank, the water supply structure is used to supply water to the bubble solution tank, and the bubble solution tank is used to contain a bubble solution mixed with mucus and water;

[0008] A bubble preparation module, the bubble preparation module includes a bubble generator and a pressure storage tank; the bubble solution tank is used to supply bubble solution to the liquid inlet of the bubble generator, the pressure storage tank is used to supply gas to the air inlet of the bubble generator, and the outlet of the bubble generator is used to generate bubbles.

[0009] Preferably, the bubble solution preparation module also includes a three-way pipe for premixing mucus and water, a first branch of the three-way pipe is connected to the mucus tank, a second branch of the three-way pipe is connected to the water supply structure, and a third branch of the three-way pipe is connected to the bubble solution tank.

[0010] Preferably, a first flow meter is provided on the first branch, and the first flow meter is used to monitor the flow of mucus; and a second flow meter is provided on the second branch, and the second flow meter is used to monitor the flow of water.

[0011] Preferably, a first pneumatic diaphragm pump is provided on the first branch line, and the first pneumatic diaphragm pump is supplied with air by a downhole compressed air system.

[0012] Preferably, a first solenoid valve is provided on the first branch, a first regulating valve is provided on the second branch, a second solenoid valve is provided on the third branch, and a third solenoid valve is provided on the air intake branch of the first pneumatic diaphragm pump.

[0013] Preferably, the bubble preparation module also includes a liquid separator, and the number of the bubble generators is multiple; the bubble solution supplied by the bubble solution tank reaches the multiple bubble generators respectively after being diverted by the liquid separator; the reflux port of the liquid separator is connected to the bubble solution tank for returning the bubble solution to the bubble solution tank.

[0014] Preferably, a second pneumatic diaphragm pump is arranged on the pipeline between the liquid inlet of the dispenser and the bubble solution tank; a fourth solenoid valve is arranged on the pipeline between the second pneumatic diaphragm pump and the bubble solution tank, a fifth solenoid valve and a second regulating valve are arranged on the pipeline between the reflux port of the dispenser and the bubble solution tank, and a sixth solenoid valve is arranged on the air intake branch of the second pneumatic diaphragm pump.

[0015] Preferably, a pressure sensor and a regulating valve are provided on the pipeline between the liquid outlet of the liquid distributor and the liquid inlet of the bubble generator.

[0016] Preferably, the air inlet of the pressure storage tank is provided with a regulating valve, the air outlet of the pressure storage tank is provided with a pressure relief valve, and the pressure storage tank is provided with a pressure sensor.

[0017] Preferably, the bubble generator is welded and fixed to the pressure storage tank, and a solenoid valve is provided at the outlet of the bubble generator.

[0018] Compared with the related art, the present invention has achieved the following technical effects:

[0019] Because the bubble solution contains mucus, it has better dust adsorption performance, and the shape of the bubbles increases the contact area between the bubble solution and the air, so that the unit volume of the bubble solution can adsorb more dust, thereby better suppressing mine dust.

[0020] In the preferred embodiment of the present invention, the underground compressed air system is used as the power of the pneumatic diaphragm pump, and no explosion-proof measures are required, which reduces equipment costs and improves safety. Each solenoid valve can be controlled by a 24V micro-electric, which is safe and stable.

[0021] In a preferred embodiment of the present invention, the mucus and water are pre-mixed before entering the bubble solution tank through a three-way pipeline, thereby improving the mixing uniformity of the two.

[0022] In a preferred embodiment of the present invention, the actual ratio of mucus to water is monitored by the first flow meter and the second flow meter, and the ratio of mucus to water is regulated by the first regulating valve to obtain a bubble solution of a desired ratio.

[0023] In a preferred embodiment of the present invention, a plurality of bubble generators are provided, and the bubble solution provided by the bubble solution tank 10 is first diverted by the liquid separator 35, and then the bubble solution is supplied to the plurality of bubble generators respectively to increase the bubble generation rate and meet the dust suppression requirements in an environment with a larger space and more dust.

[0024] The bubble generating device for suppressing dust of the present invention can also be applied to fire rescue, in which case the bubbles are used to absorb dust and harmful gases generated in the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Schematic diagram of a bubble generating device for suppressing dust according to an embodiment of the present invention.

[0027] In the figure: 1-third solenoid valve; 2-first pneumatic diaphragm pump; 3-first solenoid valve; 4-viscosity tank; 5-first flow meter; 6-three-way pipeline; 7-second flow meter; 8-first regulating valve; 9-second solenoid valve; 10-bubble solution tank; 11-pressure storage tank; 12-seventh regulating valve; 13-first pressure sensor; 14-third regulating valve; 15-second pressure sensor; 16-fourth regulating valve; 17-third pressure sensor; 18-fifth regulating valve; 19-fourth pressure sensor; 20-sixth regulating valve; 21 -fifth pressure sensor; 22-pressure relief valve; 23-first pipeline; 24-second pipeline; 25-third pipeline; 26-fourth pipeline; 27-first bubble generator; 28-second bubble generator; 29-third bubble generator; 30-fourth bubble generator; 31-seventh solenoid valve; 32-eighth solenoid valve; 33-ninth solenoid valve; 34-tenth solenoid valve; 35-liquid distributor; 36-second regulating valve; 37-fifth solenoid valve; 38-second pneumatic diaphragm pump; 39-sixth solenoid valve; 40-fourth solenoid valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The object of the present invention is to provide a bubble generating device for suppressing dust, so as to solve the problems existing in the above-mentioned related technologies and suppress mine dust.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1 , this embodiment provides a bubble generating device for suppressing dust, including a bubble solution preparation module and a bubble preparation module.

[0032] The bubble solution preparation module includes a mucus tank 4, a water supply structure and a bubble solution tank 10. The mucus tank 4 is used to store mucus. The mucus tank 4 is used to supply mucus to the bubble solution tank 10, and the water supply structure is used to supply water to the bubble solution tank 10. The bubble solution tank 10 is used to contain a bubble solution mixed with mucus and water.

[0033] The bubble preparation module includes a bubble generator and a pressure storage tank 11. The bubble solution tank 10 is used to supply bubble solution to the liquid inlet of the bubble generator, the pressure storage tank 11 is used to supply gas to the gas inlet of the bubble generator, and the outlet of the bubble generator is used to generate bubbles.

[0034] The working principle of the bubble generating device for suppressing dust is as follows:

[0035] For the bubble solution preparation module, the mucus supplied by the mucus tank 4 and the water supplied by the water supply structure are mixed to obtain a bubble solution, and the bubble solution is temporarily stored in the bubble solution tank 10 .

[0036] For the bubble preparation module, the bubble solution supplied by the bubble solution tank 10 and the gas supplied by the pressure storage tank 11 enter the bubble generator, and the bubble generator wraps the gas with the bubble solution to obtain bubbles. The bubbles float in the air and are used to absorb dust in the air.

[0037] Because the bubble solution contains mucus, it has better dust adsorption performance, and the shape of the bubbles increases the contact area between the bubble solution and the air, so that the unit volume of the bubble solution can adsorb more dust, thereby better suppressing mine dust.

[0038] As a possible example, in this embodiment, the bubble solution preparation module further includes a three-way pipe 6 for premixing mucus and water, a first branch of the three-way pipe 6 is connected to the mucus tank 4, a second branch of the three-way pipe 6 is connected to the water supply structure, and a third branch of the three-way pipe 6 is connected to the bubble solution tank 10. By using the three-way pipe 6, mucus and water are premixed before entering the bubble solution tank 10, avoiding the uneven mixing of the two when mucus and water are separately supplied to the bubble solution tank 10.

[0039] However, the actual implementation is not limited thereto. For example, if a technical solution of separately supplying mucus and water to the bubble solution tank 10 is adopted, a stirring device may be provided in the bubble solution tank 10 .

[0040] As a possible example, in this embodiment, a first flow meter 5 is provided on the first branch, and the first flow meter 5 is used to monitor the flow of mucus. A second flow meter 7 is provided on the second branch, and the second flow meter 7 is used to monitor the flow of water.

[0041] By monitoring the first flow meter 5 and the second flow meter 7, the ratio of mucus to water can be grasped in real time, so that when the ratio of mucus to water does not meet the requirements, the supply speed of at least one of the mucus and water is adjusted to obtain a bubble solution of the required ratio. In this embodiment, the volume ratio of mucus to water is approximately 1:99, and those skilled in the art can also flexibly control the ratio according to different actual needs.

[0042] As a possible example, in this embodiment, a first pneumatic diaphragm pump 2 is provided on the first branch line, and the first pneumatic diaphragm pump 2 is supplied with air by the underground compressed air system. That is, in this embodiment, the supply speed of the mucus is controlled by the first pneumatic diaphragm pump 2. Since the first pneumatic diaphragm pump 2 is powered by the underground compressed air system, there is no need to implement explosion-proof measures, thereby reducing equipment costs and improving safety.

[0043] As a possible example, in this embodiment, a first solenoid valve 3 is provided on the first branch, a first regulating valve 8 is provided on the second branch, a second solenoid valve 9 is provided on the third branch, and a third solenoid valve 1 is provided on the air inlet branch of the first pneumatic diaphragm pump 2. The first solenoid valve 3 is used to control the on-off of the mucus supply, the second solenoid valve 9 is used to control the on-off of the bubble solution supply, the third solenoid valve 1 is used to control the start and stop of the first pneumatic diaphragm pump 2, and the first regulating valve 8 is used to control the flow rate of the water supply.

[0044] As a possible example, in this embodiment, the bubble preparation module further includes a liquid separator 35, and the number of the bubble generators is multiple. The bubble solution supplied by the bubble solution tank 10 reaches the multiple bubble generators after being divided by the liquid separator 35. The reflux port of the liquid separator 35 is connected to the bubble solution tank 10, and is used to reflux the bubble solution to the bubble solution tank 10.

[0045] It should be noted that, for a large space and a lot of dust, the rate at which a single bubble generator generates bubbles is low, and its dust adsorption rate cannot meet the demand. Therefore, the present embodiment provides multiple bubble generators, and the bubble solution provided by the bubble solution tank 10 is first diverted by the liquid separator 35, and then the bubble solution is supplied to the multiple bubble generators respectively to increase the bubble generation rate. Since the speed at which the bubble generator utilizes the bubble solution is limited, the excess bubble solution flows back into the bubble solution tank 10 from the reflux port of the liquid separator 35 for subsequent use.

[0046] Exemplarily, in this embodiment, the number of bubble generators is four, namely, the first bubble generator 27, the second bubble generator 28, the third bubble generator 29 and the fourth bubble generator 30. The pipeline between the first bubble generator 27 and the liquid distributor 35 is the first pipeline 23, the pipeline between the second bubble generator 28 and the liquid distributor 35 is the second pipeline 24, the pipeline between the third bubble generator 29 and the liquid distributor 35 is the third pipeline 25, and the pipeline between the fourth bubble generator 30 and the liquid distributor 35 is the fourth pipeline 26. According to different actual needs, those skilled in the art may also select other numbers of bubble generators.

[0047] As a possible example, in this embodiment, a second pneumatic diaphragm pump 38 is provided on the pipeline between the liquid inlet of the liquid distributor 35 and the bubble solution tank 10. That is, in this embodiment, the supply speed of the bubble solution is controlled by the second pneumatic diaphragm pump 38. Since the second pneumatic diaphragm pump 38 uses the underground compressed air system as power, there is no need to implement explosion-proof measures, thereby reducing equipment costs and improving safety.

[0048] A fourth solenoid valve 40 is provided on the pipeline between the second pneumatic diaphragm pump 38 and the bubble solution tank 10, a fifth solenoid valve 37 and a second regulating valve 36 are provided on the pipeline between the reflux port of the liquid dispenser 35 and the bubble solution tank 10, and a sixth solenoid valve 39 is provided on the air intake branch of the second pneumatic diaphragm pump 38. The fourth solenoid valve 40 is used to control the on-off of the bubble solution supply, the fifth solenoid valve 37 is used to control the on-off of the bubble solution reflux process, the second regulating valve 36 is used to control the flow rate of the bubble solution reflux process, and the sixth solenoid valve 39 is used to control the start and stop of the second pneumatic diaphragm pump 38.

[0049] As a possible example, in this embodiment, a pressure sensor and a regulating valve are provided on the pipeline between the liquid outlet of the liquid distributor 35 and the liquid inlet of the bubble generator.

[0050] Specifically, in this embodiment, the first pipeline 23 is provided with a first pressure sensor 13 and a third regulating valve 14, the second pipeline 24 is provided with a second pressure sensor 15 and a fourth regulating valve 16, the third pipeline 25 is provided with a third pressure sensor 17 and a fifth regulating valve 18, and the fourth pipeline 26 is provided with a fourth pressure sensor 19 and a sixth regulating valve 20. The third regulating valve 14, the fourth regulating valve 16, the fifth regulating valve 18 and the sixth regulating valve 20 are respectively used to adjust the flow of the bubble solution on the corresponding pipelines, and the first pressure sensor 13, the second pressure sensor 15, the third pressure sensor 17 and the fourth pressure sensor 19 are respectively used to measure the hydraulic pressure of the corresponding pipelines.

[0051] As a possible example, in this embodiment, the air inlet of the pressure storage tank 11 is provided with a regulating valve, which is the seventh regulating valve 12. The air outlet of the pressure storage tank 11 is provided with a pressure relief valve 22. The pressure storage tank 11 is provided with a pressure sensor, which is the fifth pressure sensor 21.

[0052] The seventh regulating valve 12 is used to adjust the flow of gas entering the pressure storage tank 11, the pressure relief valve 22 is used to release the gas in the pressure storage tank 11, and the fifth pressure sensor 21 is used to monitor the air pressure in the pressure storage tank 11. When the air pressure in the pressure storage tank 11 is higher than the safety value, the pressure relief valve 22 is opened to release part of the gas in the pressure storage tank 11.

[0053] As a possible example, in this embodiment, the bubble generator is welded and fixed on the pressure storage tank 11. Specifically, a seventh solenoid valve 31 is provided at the outlet of the first bubble generator 27, an eighth solenoid valve 32 is provided at the outlet of the second bubble generator 28, a ninth solenoid valve 33 is provided at the outlet of the third bubble generator 29, and a tenth solenoid valve 34 is provided at the outlet of the fourth bubble generator 30. The seventh solenoid valve 31, the eighth solenoid valve 32, the ninth solenoid valve 33 and the tenth solenoid valve 34 are all used to control the generation and interruption of bubbles.

[0054] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A bubble generating device for suppressing dust, characterized in that: include: A bubble solution preparation module, the bubble solution preparation module comprising a mucus tank, a water supply structure and a bubble solution tank; the mucus tank is used to store mucus; the mucus tank is used to supply mucus to the bubble solution tank, the water supply structure is used to supply water to the bubble solution tank, and the bubble solution tank is used to contain a bubble solution mixed with mucus and water; A bubble preparation module, the bubble preparation module includes a bubble generator and a pressure storage tank; the bubble solution tank is used to supply bubble solution to the liquid inlet of the bubble generator, the pressure storage tank is used to supply gas to the air inlet of the bubble generator, and the outlet of the bubble generator is used to generate bubbles.

2. The bubble generating device for suppressing dust according to claim 1, characterized in that: The bubble solution preparation module also includes a three-way pipe for premixing mucus and water, wherein a first branch of the three-way pipe is connected to the mucus tank, a second branch of the three-way pipe is connected to the water supply structure, and a third branch of the three-way pipe is connected to the bubble solution tank.

3. The bubble generating device for suppressing dust according to claim 2, characterized in that: The first branch is provided with a first flow meter, and the first flow meter is used to monitor the flow of mucus; the second branch is provided with a second flow meter, and the second flow meter is used to monitor the flow of water.

4. The bubble generating device for suppressing dust according to claim 2, characterized in that: The first branch line is provided with a first pneumatic diaphragm pump, and the first pneumatic diaphragm pump is supplied with air by a downhole compressed air system.

5. The bubble generating device for suppressing dust according to claim 4, characterized in that: The first branch is provided with a first solenoid valve, the second branch is provided with a first regulating valve, the third branch is provided with a second solenoid valve, and the air intake branch of the first pneumatic diaphragm pump is provided with a third solenoid valve.

6. The bubble generating device for suppressing dust according to claim 1, characterized in that: The bubble preparation module also includes a liquid separator, and the number of the bubble generators is multiple; the bubble solution supplied by the bubble solution tank reaches the multiple bubble generators respectively after being diverted by the liquid separator; the reflux port of the liquid separator is connected to the bubble solution tank for returning the bubble solution to the bubble solution tank.

7. The bubble generating device for suppressing dust according to claim 6, characterized in that: A second pneumatic diaphragm pump is arranged on the pipeline between the liquid inlet of the dispenser and the bubble solution tank; a fourth solenoid valve is arranged on the pipeline between the second pneumatic diaphragm pump and the bubble solution tank, a fifth solenoid valve and a second regulating valve are arranged on the pipeline between the reflux port of the dispenser and the bubble solution tank, and a sixth solenoid valve is arranged on the air intake branch of the second pneumatic diaphragm pump.

8. The bubble generating device for suppressing dust according to claim 6, characterized in that: A pressure sensor and a regulating valve are arranged on the pipeline between the liquid outlet of the liquid distributor and the liquid inlet of the bubble generator.

9. The bubble generating device for suppressing dust according to claim 1, characterized in that: The air inlet of the pressure storage tank is provided with a regulating valve, the air outlet of the pressure storage tank is provided with a pressure relief valve, and the pressure storage tank is provided with a pressure sensor.

10. The bubble generating device for suppressing dust according to claim 1, characterized in that: The bubble generator is welded and fixed on the pressure storage tank, and a solenoid valve is arranged at the outlet of the bubble generator.

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