CN110743291A

CN110743291A - Mine dust removal method and device

Info

Publication number: CN110743291A
Application number: CN201911115034.4A
Authority: CN
Inventors: 唐卫强
Original assignee: Jiangxi Weieranshi Environmental Protection Technology Co Ltd
Current assignee: Jiangxi Weieranshi Environmental Protection Technology Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-02-04

Abstract

The invention discloses a mine dust removal device which comprises a mixing component and a spraying component, wherein the mixing component is used for preparing a dust removal agent. The spraying assembly comprises a liquid storage tank and a plurality of liquid mixing boxes. The device provided by the invention realizes the technical effect that the concentration of the biological nano-film preparation in the dust removal liquid medicine sprayed along the ore transportation route is gradually reduced, and the dust removal effect is still good compared with the dust removal mode in the prior art, and the cost of the liquid medicine is greatly saved.

Description

Mine dust removal method and device

Technical Field

The invention belongs to the technical field of environmental management, and particularly relates to a mine dust removal method and a mine dust removal device.

Background

The fine dust generated in the process of ore crushing, screening and transporting is suspended in the air, which can affect the human health and the normal operation of equipment. With the progress of society and the development of science and technology, the requirements of people on life and health are higher and higher, and the prevention and treatment of dust in a dressing plant are very important. According to the design principle of dust remover, the dust removing technology can be divided into dry dust removing and wet dust removing. The dry dust removing equipment comprises an electrostatic dust remover, a bag-type dust remover, a filter drum type dust remover and the like, and the wet dust removing equipment comprises a water bath type dust remover, a biological nano-film dust remover, a self-excitation type dust remover, a Venturi dust remover and the like. According to the application condition of the dust remover in the process, the dust suppression and collection treatment is divided into source dust suppression and dust collection treatment. Dust suppression at the source, namely, the treatment of possible dust generation is reduced; and (4) dust collection treatment, namely performing dust collection treatment on the generated dust. At present, most of domestic dust collectors perform dust collection treatment on generated dust, and the effect is poor.

The biological nano-film dust suppression technology is a technology for suppressing dust by mixing a biological agent with water and spraying the mixture on the surface of ore through a dosing device to form a protective film. Generally, when the particle size of the dust is larger than 100 μm, the dust is not easily blown into the air by its own weight to form floating dust, and the larger the particle size is, the more inert the dust scattering activity is. The dust is condensed by a nano film formed by the biological nano film dust suppressant, the particle size of dust particles is increased, the motion performance of dust flying activity is reduced, and dust settlement is realized.

Disclosure of Invention

The invention provides a mine dust removal device, which comprises a mixing component and a spraying component, wherein the mixing component comprises a mixing box, the mixing box is of a box structure with an opening at the upper end, a biological medicament barrel, a water storage barrel, an additive trough and a mixing barrel are arranged in an inner cavity of the mixing box, the biological medicament barrel, the water storage barrel and the additive trough are positioned above the mixing barrel, biological medicaments are stored in the biological medicament barrel, a liquid outlet is formed in the bottom of the biological medicament barrel, and a spiral mixing pipe is connected in the liquid outlet; the upper end of the spiral mixing pipe is arranged in the liquid outlet, and the lower end of the spiral mixing pipe extends to the edge of the bottom of the mixing barrel; the spiral mixing pipe is connected with a branch pipe; one end of the branch pipe is integrally connected with the spiral mixing pipe, and the other end of the branch pipe is branched into a solid material pipe and a liquid material pipe; a first electric control stop valve is also arranged in the spiral mixing pipe at the liquid outlet; the water storage barrel is internally stored with water, the bottom of the water storage barrel is provided with a water outlet, a water guide pipe is arranged on the water outlet, and a second electric control stop valve is arranged on the water guide pipe; the biological agent barrel, the water storage barrel and the mixing barrel are separated by a partition plate, a water inlet pipe is mounted on the partition plate through a bearing, and the water inlet pipe penetrates through the partition plate; the upper end of the water inlet pipe is butted with the water guide pipe, and the lower end of the water inlet pipe extends into the mixing barrel and is dispersed into bent pipes to extend to the side wall of the mixing barrel; a rotating shaft is fixedly arranged below the bent pipe, and a rotating paddle is arranged on the rotating shaft; an ultrasonic generator is arranged outside the mixing barrel, the additive material tank comprises a solid-phase feeding tank and a liquid-phase feeding tank, the bottom of the solid-phase feeding tank is communicated with the solid material pipe, the bottom of the liquid-phase feeding tank is communicated with the liquid material pipe, and a third electric control stop valve is arranged on the liquid material pipe;

the spraying assembly comprises a liquid storage tank and a plurality of liquid mixing boxes, a liquid inlet of the liquid storage tank is communicated to the bottom of the material mixing barrel through a liquid inlet pipe, a liquid outlet pipe is inserted in the liquid storage tank, a water pump is installed on the liquid outlet pipe, one end of the liquid outlet pipe extends to the bottom of the liquid storage tank, and the other end of the liquid outlet pipe is connected with a three-way reversing valve; one end of the three-way reversing valve is connected with the liquid outlet pipe, and the other two ends of the three-way reversing valve are respectively connected with the return pipe and the liquid inlet pipe; the tail end of the return pipe is communicated to the liquid storage tank to return the liquid medicine to the liquid storage tank, and the tail end of the liquid inlet pipe extends into the liquid mixing box; the ore feeding device comprises a plurality of mixing boxes, a plurality of water inlet pipes, a plurality of water inlet main pipes, a plurality of water outlet pipes, a plurality of water mixing spiral pipes, a plurality of water inlet pipes, a plurality of water outlet pipes, a plurality of water inlet pipes and a plurality of water outlet pipes, wherein the plurality of mixing boxes are arranged according to the ore conveying direction, the inner cavity of each mixing box is divided into a mixing chamber and a spraying chamber, the mixing chamber and the spraying chamber are communicated through connecting pipes, two ends of each connecting pipe are respectively connected with the bottoms of the mixing chamber and the spraying; a pesticide outlet pipe is inserted into the spraying chamber and connected with a liquid inlet pipe of the next liquid mixing box to connect two adjacent liquid mixing boxes, and a pesticide spray pipe is also connected to the pesticide outlet pipe and provided with a nozzle for spraying the prepared dedusting liquid pesticide; the top of the spraying chamber is inserted with an air pipe, the air pipe is connected with a pneumatic pump, and the dedusting liquid medicine in the spraying chamber is pressed into a medicine outlet pipe;

first automatically controlled stop valve, the automatically controlled stop valve of second, the automatically controlled stop valve of third, the automatically controlled stop valve of fourth, the automatically controlled stop valve of fifth, pneumatic pump, three-way switching-over valve all pass through wire connection control box, by opening or closing of the first automatically controlled stop valve of control box control, the automatically controlled stop valve of second, the automatically controlled stop valve of third, the automatically controlled stop valve of fourth, the automatically controlled stop valve of fifth, pneumatic pump and three-way switching-over valve, wherein the operating condition of pneumatic pump, the automatically controlled stop valve of fifth and the automatically controlled stop valve of fourth is opposite: when the fourth electric control stop valve is opened, the pneumatic pump stops working, and the fifth electric control stop valve is closed; when the fourth electric control stop valve is closed, the pneumatic pump is started to work, and the fifth electric control stop valve is started; when the pneumatic pump starts to work, the control box controls the three-way reversing valve to be communicated with the liquid outlet pipe and the liquid inlet pipe, the pipelines of the liquid outlet pipe and the backflow pipe are in a disconnected state, when the pneumatic pump stops working, the control box controls the three-way reversing valve to be communicated with the liquid outlet pipe and the backflow pipe, and the pipelines of the liquid outlet pipe and the liquid inlet pipe are in a disconnected state.

Furthermore, the bottom of water storage bucket is equipped with the hot plate, the hot plate is used for heating for the water in the water storage bucket, and the hot plate passes through the wire and connects the external power supply.

Further, the bottom of the mixing box is provided with rollers for moving the mixing box.

Furthermore, the upper ends of the biological agent barrel and the water storage barrel are provided with openings, and the upper ends of the biological agent barrel and the water storage barrel are provided with barrel covers.

Further, the observation seam has all been seted up along vertical direction to the lateral wall of biological medicament bucket and water storage bucket, it has clear glass to inlay in the observation seam for observe the water level height in biological medicament bucket and the water storage bucket.

Furthermore, four bent pipes are arranged, and the four bent pipes are distributed in an equidistant annular array by taking the axis of the water guide pipe as the center.

A method for removing dust from a mine comprises the following steps:

(1) the spraying ports are distributed along the ore transportation and processing line and used for spraying dedusting liquid medicine;

(2) preparing a dedusting liquid medicine: and mixing water, polyaspartic acid and hydrogen peroxide into the biological nano-film preparation, uniformly mixing to obtain a dedusting liquid medicine, spraying the dedusting liquid medicine from the spraying opening to remove dust, and gradually reducing the content of the biological nano-film preparation in the dedusting liquid medicine which is sprayed along the ore transportation route from the ore blanking and crushing process.

According to the technical scheme, the invention has the beneficial effects that:

(1) in the prior art, biological membrane-receiving liquid spray heads for ore transportation dust removal spraying on mines are arranged along a transportation processing route or are only arranged at a transportation source, if biological membrane-receiving liquid is only sprayed at the transportation source, dust can still be generated at a subsequent transportation processing section, and the dust removal effect is not ideal for the whole process; the concentration of the biological nano-membrane preparation is not considered in the mode of spraying the biological nano-membrane solution along the transportation and processing route in sections, the spraying concentration of each point is the same, although the dust removal effect is good, the consumption of the biological nano-membrane preparation is high, the cost is high, and a spraying machine is independently arranged at each spraying point, so that the cost is further increased. The device provided by the invention realizes the technical effect that the concentration of the biological nano-film preparation in the dust removal liquid medicine sprayed along the ore transportation route is gradually reduced, and the dust removal effect is still good compared with the dust removal mode in the prior art, and the cost of the liquid medicine is greatly saved;

(2) in actual production, ore transport is not continuous, but is intermittently carried out according to the processing speed. In the prior art, the ore conveying belt is continuously sprayed, so that the liquid medicine is greatly wasted. The manual control of the opening and closing of the spraying equipment is time-consuming and labor-consuming. The invention adopts an intermittent spraying mode, and the spraying interval time is set as the operation interval time of the conveying belt, so that the dust removal effect is ensured, and meanwhile, the dosage of the medicament is further saved;

(3) in practice, the fact that the biological nano-film preparation purchased in the market is directly used after being mixed with water is found that the dust removal effect is still to be improved, the concentration of suspended dust in the environment is high, although the visible dust is obviously reduced, the working environment is considerable, and the nose of the mask is still grey after an operator works for one day. The invention improves the formula of the dedusting liquid medicine, further optimizes the dedusting effect, obviously reduces the concentration of suspended light dust, further improves the working environment and protects the health of workers.

Drawings

Fig. 1 is a schematic structural view of the apparatus of the present invention (the lower half of the spiral mixing pipe 8 is cut away).

Detailed Description

The following is a detailed description with reference to examples:

a mine dust collector comprises a mixing component and a spraying component. The compounding subassembly includes mixing box 1, and mixing box 1 is upper end open-ended box structure, is equipped with biological medicament bucket 2, water storage bucket 3, additive silo 4 and mixing barrel 5 in mixing box 1's the inner chamber. In order to facilitate the movement of the mixing box 1, the bottom of the mixing box 1 may be provided with rollers 6 for facilitating the movement of the mixing box to a desired position. Biological medicament bucket 2, water storage bucket 3 and additive silo 4 are located the top of compounding bucket 5, and the upper end opening of biological medicament bucket 2 and water storage bucket 3, the upper end opening part of biological medicament bucket 2 and water storage bucket 3 is equipped with bung 27 and seals the staving. The biological agent barrel 2 is filled with biological agent, namely biological nano-film preparation. A liquid outlet 7 is arranged at the bottom of the biological medicament barrel 2, and a spiral mixing pipe 8 is connected in the liquid outlet 7. In the prior art, the mixing of the biological nano-film preparation and water is usually completed by adopting a stirring motor and a stirring paddle, the noise of the device is very large due to the vibration effect of the stirring motor, the vibration of the stirring motor can cause the vibration of the whole mixing box, the damage to a control box or an electronic control system arranged on the mixing box is large, and the service life of the control box or an electronic device is influenced. The device design spiral mixing tube 8 described in this embodiment, produce rotatory liquid through spiral mixing tube 8 and mix, when having guaranteed certain mixture homogeneity, eliminated the vibrations and the noise of device basically. The upper end of the spiral mixing pipe 8 is arranged in the liquid outlet 7, and the lower end extends to the bottom edge of the mixing barrel 5. The spiral mixing pipe 8 is connected with a branch pipe 9, one end of the branch pipe 9 is connected with the spiral mixing pipe 8 in an integrated forming mode, the other end of the branch pipe 9 is branched into a solid material pipe 10 and a liquid material pipe 11, and materials entering from the solid material pipe 10 and the liquid material pipe 11 are mixed with the biological nano-film preparation in the spiral mixing pipe 8 and then flow into the mixing barrel 5 in a spiral mode. Still install first automatically controlled stop valve 12 in the spiral mixing tube 8 of liquid outlet 7 department, whether flow in spiral mixing tube 8 by the opening and closing control biological nanometer membrane preparation of first automatically controlled stop valve 12. The water storage barrel 3 is internally stored with water, a water outlet 13 is arranged at the bottom of the water storage barrel 3, a water guide pipe 14 is arranged on the water outlet 13, and a second electric control stop valve 15 is arranged on the water guide pipe 14. When the second electrically controlled stop valve 15 is opened, the water in the water storage tub 3 can flow out from the water guide pipe 14. In some cases (for example, in the case of low ambient temperature), if it is required that the spraying of the dedusting liquid medicine has a certain temperature effect, the water in the water storage tank 3 needs to be properly heated. Therefore, as an alternative of this embodiment, a heating plate 16 may be additionally disposed at the bottom of the water storage barrel 3, the heating plate 16 is used for heating water in the water storage barrel, and the heating plate 16 is connected to an external power supply through a wire. The biological agent barrel 2, the water storage barrel 3 and the mixing barrel 5 are separated by a partition board 17. The partition 17 is fitted with a water inlet pipe 19 by means of a bearing 18 so that the water inlet pipe 19 can rotate freely about its own axis. The water inlet pipe 19 passes through the partition plate 17, and the upper end of the water inlet pipe 19 is abutted against the water introduction pipe 14, so that the water flowing out of the water introduction pipe 14 flows into the water inlet pipe 19. The lower end of the inlet pipe 19 extends into the mixing bowl 5 and diverges into a bend 20 extending towards the side wall of the mixing bowl. The elbows 20 can be provided in any number. The number of the bent pipes 20 is four, and the four bent pipes 20 are distributed in an equidistant annular array with the axis of the water guide pipe as the center. A rotating shaft 21 is fixedly arranged below the elbow pipe 20, and a rotating paddle 22 is arranged on the rotating shaft 21. An ultrasonic generator 23 is arranged outside the mixing barrel 5, and mixing is carried out in an ultrasonic environment. The additive material tank 4 comprises a solid phase feeding tank 24 and a liquid phase feeding tank 25, and the bottom of the solid phase feeding tank 24 is communicated with a solid material pipe 10 for feeding solid materials into the mixing barrel 5; the bottom of the liquid phase feeding tank 25 is communicated with a liquid material pipe 11 for feeding liquid adding materials into the mixing barrel 5. And a third electric control stop valve 26 is arranged on the liquid pipe 11 and used for controlling the communication or the closing of the liquid pipe 11. In the mixing process, the ultrasonic generator 23 is started first, and the mixed liquid of the polyaspartic acid and the hydrogen peroxide is prepared in the liquid-phase feeding tank 25 of the additive tank 4. Then the first electric control stop valve 12, the second electric control stop valve 15 and the third electric control stop valve 26 are controlled by the control box to be opened simultaneously, the mixed liquid of the biological nano-membrane preparation and the polyaspartic acid/hydrogen peroxide is mixed in the spiral mixing pipe 8, and the mixed liquid is further uniformly mixed in the flowing process along the spiral mixing pipe 8. When the mixed liquid finally flows out from the lower end of the spiral mixing pipe 8, a tangential thrust is generated at the edge of the inner cavity of the mixing barrel 5, and the rotating paddle 22 is pushed to drive the water inlet pipe 19 to rotate. The water in the water storage barrel 3 enters the water inlet pipe 19 through the water guide pipe 14 in the rotation process of the water inlet pipe 19 and flows out of each bent pipe 20, and the bent pipes 20 are also in rotation, so that the flowing water is uniformly sprayed into the water storage barrel 3. For the compounding is more even, as an alternative scheme, can insert the air duct in biological medicament bucket 2 and 3 interpolation of water storage bucket, pressurize 3 inner chambers of biological medicament bucket 2 and water storage bucket during the compounding.

The spraying assembly comprises a liquid storage tank 28 and a plurality of liquid mixing boxes 29, a liquid inlet of the liquid storage tank 28 is communicated to the bottom of the material mixing barrel 5 through a liquid inlet pipe 30, and a ball valve 49 is mounted on the liquid inlet pipe 30. A liquid outlet pipe 31 is inserted in the liquid storage tank 28, a water pump 32 is installed on the liquid outlet pipe 31, and the mixed materials in the liquid storage tank 28 are pumped out through the water pump 32. One end of the liquid outlet pipe 31 extends to the bottom of the liquid storage tank, and the other end is connected with an electrically controlled three-way reversing valve 33. One end of the three-way reversing valve 33 is connected with the liquid outlet pipe 31, and the other two ends are respectively connected with the return pipe 34 and the liquid inlet pipe 35. The end of the return pipe 34 is connected to the liquid storage tank 28 to return the liquid medicine to the liquid storage tank 28, and the end of the liquid inlet pipe 35 extends into the liquid mixing tank 29. The structures of a plurality of the liquid mixing boxes are the same and are arranged according to the ore transportation direction, and 3 liquid mixing boxes are designed in the embodiment as an example for explanation. The inner cavity of the liquid mixing tank 29 is divided into a liquid mixing chamber 36 and a spraying chamber 37 which are independent of each other, and the liquid mixing chamber 36 and the spraying chamber 37 are communicated through a connecting pipe 38. The two ends of the connecting pipe 38 are respectively connected with the bottoms of the liquid mixing chamber 36 and the spraying chamber 37, and a fourth electric control stop valve 39 is installed on the connecting pipe 38. The liquid mixing chamber 36 is internally provided with a liquid mixing spiral pipe 40, and the upper part of the liquid mixing spiral pipe 40 is communicated with the liquid inlet pipe 35 and the water inlet pipe 41. A fifth electric control stop valve 42 is installed on the water inlet pipe 41, and a water inlet manifold 43 is communicated above the water inlet pipe 41. The water inlet manifold 43 is connected to the water storage barrel 3 for supplying water. A medicine outlet pipe 44 is inserted in the spraying chamber 37, the medicine outlet pipe 44 is connected with the liquid inlet pipe 35 of the next liquid mixing box, and the two adjacent liquid mixing boxes are connected. The medicine outlet pipe 44 is also connected with a liquid spraying pipe 45, and the liquid spraying pipe 45 is provided with a nozzle 46 for spraying the prepared dedusting liquid medicine. An air pipe 47 is inserted into the top of the spraying chamber 37, the air pipe 47 is connected with a pneumatic pump 48, and the dedusting liquid medicine in the spraying chamber 37 is pressed into the medicine outlet pipe 44. The first electric control stop valve 12, the second electric control stop valve 15, the third electric control stop valve 26, the fourth electric control stop valve 39, the fifth electric control stop valve 42, the pneumatic pump 48 and the three-way reversing valve 33 are all connected with a control box (not shown in the figure) through leads, the control box controls the opening or closing of the first electric control stop valve 12, the second electric control stop valve 15, the third electric control stop valve 26, the fourth electric control stop valve 39, the fifth electric control stop valve 42, the pneumatic pump 48 and the three-way reversing valve 33, and the control box can be installed on the mixing box 1. The working states of the pneumatic pump 48, the fifth electrically controlled stop valve 42 and the fourth electrically controlled stop valve 39 are opposite: when the fourth electrically controlled stop valve 39 is opened, the pneumatic pump 48 stops working, and the fifth electrically controlled stop valve 42 is closed; when the fourth electrically controlled stop valve 39 is closed, the pneumatic pump 48 is started to work, and the fifth electrically controlled stop valve 42 is opened. Meanwhile, when the control box controls the pneumatic pump 48 to start to work according to a set working program, the control box simultaneously outputs a command to control the three-way reversing valve 33 to connect the liquid outlet pipe 31 and the liquid inlet pipe 35, and the pipelines of the liquid outlet pipe 31 and the return pipe 34 are in a disconnected state; when the control box controls the pneumatic pump 48 to stop working according to the set working program, the control box controls the three-way reversing valve 33 to connect the liquid outlet pipe 31 and the return pipe 34, and the pipelines of the liquid outlet pipe 31 and the liquid inlet pipe 35 are in a disconnected state. In the spraying process, the ball valve 49 is opened to introduce the dust removing liquid medicine mixed in the mixing barrel 5 into the liquid storage tank 28. The water pump 32 is turned on to start operation and the spraying interval time value and the spraying time value are set by the control box. The operation mode of the control box is opened to automatically control the spraying of the liquid medicine. And starting timing when the spraying interval period is started, controlling the three-way reversing valve 33 to be communicated with the liquid outlet pipe 31 and the return pipe 34 by the control box at the moment, enabling the pipelines of the liquid outlet pipe 31 and the liquid inlet pipe 35 to be in a disconnected state, enabling the liquid medicine in the liquid storage tank 28 to enter the return pipe 34 through the water pump 32 and flow into the liquid storage tank 28 again, controlling the fourth electric control stop valve 39 to be opened by the control box, closing the fifth electric control stop valve 42, and stopping the pneumatic pump 48. The chemical in the mixing chamber 36 is introduced into the spraying chamber 37 through the connecting pipe 38. When the spraying interval time value is reached, the control box controls the three-way reversing valve 33 to connect the liquid outlet pipe 31 and the liquid inlet pipe 35, the pipelines of the liquid outlet pipe 31 and the liquid return pipe 34 are in a disconnected state, the fourth electric control stop valve 39 is closed, the fifth electric control stop valve 42 is opened, the pneumatic pump 48 starts to work, and timing spraying is started again. At this time, in the liquid mixing chamber 36, the liquid medicine in the liquid storage tank 28 enters the liquid inlet pipe 35 and the liquid mixing spiral pipe 40 through the water pump 32, and the water in the water storage barrel 3 enters the liquid mixing spiral pipe 40 through the water inlet main pipe 43 and the water inlet pipe 41 to be mixed with the liquid medicine; in the spraying chamber 37, the pressure in the inner cavity of the spraying chamber 37 is increased under the action of the pneumatic pump 48, so that the liquid medicine in the spraying chamber 37 is quickly pressed into the medicine outlet pipe 44 and is divided into the liquid spraying pipe 45 and the liquid inlet pipe 35 of the next liquid mixing box. The chemical liquid entering the liquid spraying pipe 45 is finally sprayed out from the nozzle 46 for dust removal, and the chemical liquid entering the liquid inlet pipe 35 of the next liquid mixing tank is further diluted in the next liquid mixing tank for dust removal in the downstream of the ore transportation route. And when the set spraying time value is reached, the control box automatically controls the spraying assembly to enter a spraying interval period and repeats the steps, and the spraying operation circularly works in a spraying interval period mode and a spraying period mode. Above-mentioned design has realized spraying along ore transfer route and has removed dust biological nanometer membrane preparation concentration degressive effect step by step in the liquid medicine, and this design dust removal effect is still good, and has greatly practiced thrift the cost of liquid medicine.

In order to observe the reserves of liquid medicine and water and in time add the liquid at any time, as an optional optimization scheme of this embodiment, the lateral wall of biological medicament bucket and water storage bucket all can have seted up along vertical direction and observe the seam, it has clear glass to inlay in the observation seam for observe the water level height in biological medicament bucket and the water storage bucket.

The method for removing dust in the mine by using the device comprises the following steps:

(1) arranging a liquid spraying pipe 45 along the ore transportation and processing route;

(2) preparing a dedusting liquid medicine: the method comprises the steps of mixing water, polyaspartic acid and hydrogen peroxide (the mass percentage of hydrogen peroxide is 5%) into a commercially available biological nano-film preparation, uniformly mixing under an ultrasonic environment to obtain a dedusting liquid medicine, wherein in general use, each ton of biological nano-film preparation contains 7-8 tons of water, 0.06-0.07 ton of polyaspartic acid and 0.01-0.03 ton of hydrogen peroxide. And spraying the dedusting liquid medicine from the spraying port to remove dust, and gradually reducing the content of the biological nano-film preparation in the dedusting liquid medicine which is sprayed along the ore transportation route from the ore blanking and crushing process.

Compared with the method that the biological nano-membrane preparation purchased in the market is directly used after being mixed with water, the invention improves the formula of the dust removal liquid medicine, further optimizes the dust removal effect, obviously reduces the concentration of suspended light dust, and shows that the cleanliness of the mask is improved when workers work for one day (8 hours).

Of course, the apparatus of the present invention is not limited to the above-described dust removal method for mines, and spraying directly after dispensing water with a commercially available bio-membrane preparation can also be performed using the apparatus of the present invention. The mine dust removal method is only one of the using methods of the device, and is not to be considered as limiting the technical scheme of the device.

The technical solutions provided by the present invention are described in detail above, and for those skilled in the art, the ideas according to the embodiments of the present invention may be changed in the specific implementation manners and the application ranges, and in summary, the content of the present description should not be construed as limiting the present invention.

Claims

1. A mine dust removal device is characterized by comprising a mixing component and a spraying component, wherein the mixing component comprises a mixing box, the mixing box is of a box structure with an opening at the upper end, a biological medicament barrel, a water storage barrel, an additive trough and a mixing barrel are arranged in an inner cavity of the mixing box, the biological medicament barrel, the water storage barrel and the additive trough are positioned above the mixing barrel, biological medicaments are stored in the biological medicament barrel, a liquid outlet is formed in the bottom of the biological medicament barrel, and a spiral mixing pipe is connected in the liquid outlet; the upper end of the spiral mixing pipe is arranged in the liquid outlet, and the lower end of the spiral mixing pipe extends to the edge of the bottom of the mixing barrel; the spiral mixing pipe is connected with a branch pipe; one end of the branch pipe is integrally connected with the spiral mixing pipe, and the other end of the branch pipe is branched into a solid material pipe and a liquid material pipe; a first electric control stop valve is also arranged in the spiral mixing pipe at the liquid outlet; the water storage barrel is internally stored with water, the bottom of the water storage barrel is provided with a water outlet, a water guide pipe is arranged on the water outlet, and a second electric control stop valve is arranged on the water guide pipe; the biological agent barrel, the water storage barrel and the mixing barrel are separated by a partition plate, a water inlet pipe is mounted on the partition plate through a bearing, and the water inlet pipe penetrates through the partition plate; the upper end of the water inlet pipe is butted with the water guide pipe, and the lower end of the water inlet pipe extends into the mixing barrel and is dispersed into bent pipes to extend to the side wall of the mixing barrel; a rotating shaft is fixedly arranged below the bent pipe, and a rotating paddle is arranged on the rotating shaft; an ultrasonic generator is arranged outside the mixing barrel, the additive material tank comprises a solid-phase feeding tank and a liquid-phase feeding tank, the bottom of the solid-phase feeding tank is communicated with the solid material pipe, the bottom of the liquid-phase feeding tank is communicated with the liquid material pipe, and a third electric control stop valve is arranged on the liquid material pipe;

2. The mine dust collector of claim 1, wherein a heating plate is arranged at the bottom of the water storage barrel and used for heating water in the water storage barrel, and the heating plate is connected with an external power supply through a lead for supplying power.

3. The mine dust collector of claim 1, wherein the mixing box is provided with rollers at the bottom for moving the mixing box.

4. The mine dust collector of claim 1, wherein the biological agent barrel and the water storage barrel are open at the upper ends thereof, and a barrel cover is arranged at the upper end openings of the biological agent barrel and the water storage barrel.

5. The mine dust collector of claim 1, wherein observation slits are vertically formed in the side walls of the biological agent barrel and the water storage barrel, and transparent glass is embedded in the observation slits and used for observing the water level in the biological agent barrel and the water storage barrel.

6. The mine dust removal device of claim 1, wherein four of the bent pipes are arranged, and the four bent pipes are distributed in an equidistant annular array around the axis of the water guide pipe.