Ventilation and dust removal device and mine hydrogen sulfide treatment equipment

Abstract

The invention relates to the technical field of ventilation, in particular to a ventilation and dust removal device and mine hydrogen sulfide treatment equipment. The ventilation and dust removal device comprises a ventilation pipe and a cleaning mechanism, and a dust screen is arranged at the end of the ventilation pipe; the cleaning mechanism comprises a cleaning shell, a driving rotary drum and a cleaning assembly, the cleaning shell is fixedly arranged at the end of the ventilation pipe, a first rotating shaft is fixedly arranged in the cleaning shell and located on the outer side of the ventilation pipe, the driving rotary drum is pivoted to the first rotating shaft, and the cleaning assembly is arranged on the driving rotary drum. The multiple cleaning assemblies are arranged in the circumferential direction of the driving rotary drum at intervals and used for removing impurities attached to the dustproof net. According to the ventilation and dust removal device, by arranging the cleaning assembly connected to the driving rotary drum, impurities attached to the dustproof net are removed, so that the circulation degree of gas in the ventilation pipe is guaranteed, and the air quality of an underground coal mine is guaranteed; manual removal is not needed, and the labor intensity of an operator is relieved.

Description

Technical Field

[0001] The present invention relates to the field of ventilation technology, and in particular to a ventilation and dust removal device and mine hydrogen sulfide treatment equipment. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. During the coal mining process, the air in the mine is often stale due to the lack of air circulation, and the workers suffer from hypoxia. In order to ensure the safety of the workers, ventilation devices are needed to ventilate the mine and provide healthy air in the mine to ensure that the workers are in an airy working environment. However, the air above the coal mine contains a lot of dust. When the air enters the coal mine through the ventilation duct, it needs to be filtered.

[0003] The existing filters of coal mine ventilation ducts only filter dust in the ventilation ducts, but do not have the function of cleaning dust impurities from the filters. When too much dust adheres to the filters, if it is not cleaned in time, it will hinder the circulation of air in the ventilation ducts, thereby affecting the air quality underground in the coal mine. Summary of the invention

[0004] The first purpose of the present invention is to provide a ventilation and dust removal device to solve the technical problem in the prior art that excessive dust adheres to the filter screen, which, if not cleaned in time, will hinder the flow of air in the ventilation duct, thereby affecting the air quality underground in the coal mine.

[0005] A ventilation and dust removal device provided by the present invention includes a ventilation pipe and a cleaning mechanism, wherein a dust net is provided at the end of the ventilation pipe; the cleaning mechanism includes a cleaning shell, a driving drum and a cleaning assembly, wherein the cleaning shell is fixedly arranged at the end of the ventilation pipe, a first rotating shaft is fixedly arranged in the cleaning shell, the driving drum is pivotally connected to the first rotating shaft, and the cleaning assembly has multiple components which are arranged at intervals along the circumferential direction of the driving drum for removing impurities attached to the dust net.

[0006] Optionally, the cleaning assembly includes a scraper, and the scraper is fixed on the driving drum.

[0007] Optionally, along the scraping direction of the scraper, the scraper includes a first sub-plate and a second sub-plate arranged opposite to each other, the upper end of the first sub-plate is higher than the upper end of the second sub-plate, the lower end of the first sub-plate and the lower end of the second sub-plate are connected to each other, and the first sub-plate and the second sub-plate form a receiving groove for receiving impurities.

[0008] Optionally, a scraper is provided on the upper end of the first sub-plate for scraping off impurities on the dustproof net;

[0009] And / or, the cross-sectional shape of the accommodating groove is V-shaped or trapezoidal.

[0010] Optionally, the cleaning assembly further includes a second rotating shaft and a cleaning roller brush, wherein the second rotating shaft is pivotally connected to the circumferential surface of the driving drum, and the cleaning roller brush is fixed to the second rotating shaft and is located in the receiving groove of the scraper for cleaning impurities from the dustproof net.

[0011] Optionally, one end of the second rotating shaft passes through the inner wall surface of the driving rotating drum and is fixedly provided with a second bevel gear; a first bevel gear is fixedly provided on the first rotating shaft, and the second bevel gear can be meshed with the first bevel gear.

[0012] Optionally, the first bevel gear is a semicircular bevel gear, and the arc-shaped tooth surface of the semicircular bevel gear is close to one side of the ventilation pipe; if the scraper is located below the ventilation pipe, the second bevel gear is engaged with the semicircular bevel gear, driving the second rotating shaft to drive the cleaning roller brush to roll.

[0013] Optionally, the cleaning component also includes a comb plate, which is movably connected to the driving drum and is located below the cleaning roller brush. The comb plate has a plurality of grooves, and the plurality of grooves can abut against the cleaning roller brush to scrape impurities adhered to the cleaning roller brush into the receiving groove of the scraper.

[0014] Optionally, the driving drum is provided with a plurality of strip grooves;

[0015] The circumferential surface of the first rotating shaft is provided with an annular groove, the annular groove comprises a first semi-annular groove, a first connecting groove, a second semi-annular groove and a second connecting groove which are sequentially connected to each other, the first semi-annular groove is closer to one side of the ventilation pipe than the second semi-annular groove, and the first semi-annular groove is higher than the second semi-annular groove;

[0016] A support rod is fixed to the comb plate on one side close to the first rotating shaft, one end of the support rod passes through the strip groove and is slidably connected to the annular groove, and the annular groove is configured as follows: if the support rod is slidably connected to the first semi-annular groove, the comb plate abuts against the cleaning roller brush to scrape off impurities adhered to the cleaning roller brush in the receiving groove of the scraper plate; if the support rod is slidably connected to the second semi-annular groove, the comb plate is away from the cleaning roller brush.

[0017] Optionally, the bottom of the cleaning housing has a collecting chamber, and the collecting chamber is arranged adjacent to the ventilation pipe;

[0018] The cleaning assembly also includes a cleaning block, which is slidably connected to the scraper along the length direction of the scraper; the cleaning block has a first scraping portion, which cooperates with the inner wall surface of the receiving groove of the scraper to clean impurities in the receiving groove into the collection chamber.

[0019] Optionally, the cleaning block has an arc surface and a second scraping portion connected to each other, the arc surface is used to avoid the cleaning roller brush, and the second scraping portion can be attached to the comb plate to clean the impurities on the comb plate into the collection chamber;

[0020] And / or, the cleaning shell is provided with a driving slide groove, and the driving slide groove includes a first arc groove, a second arc groove and a third arc groove connected in sequence, and the second arc groove and the third arc groove are symmetrically arranged; the cleaning block is connected to a guide rod, and the guide rod is slidably connected to the driving slide groove, and the driving slide groove is configured as follows: if the scraper is located below the ventilation pipe, the guide rod slides along the first arc groove so that the cleaning block is located near one end of the first rotating shaft; if the scraper moves from the bottom of the ventilation pipe to the top of the collecting chamber, the guide rod slides along the second arc groove, driving the cleaning block to slide along the first direction of the receiving groove to clean the impurities in the receiving groove into the collecting chamber; if the scraper moves from the top of the collecting chamber to the bottom of the ventilation pipe, the guide rod slides along the third arc groove, driving the cleaning block to slide in the opposite direction of the first direction of the receiving groove;

[0021] And / or, a blocking block is provided on the side of the scraper away from the driving drum, and a first spring is connected between the blocking block and the scraper; a push block is connected to the side of the cleaning block away from the driving drum; the blocking block and the push block are configured as follows: if the push block abuts against the blocking block, the push block is deflected; if the push block is separated from the blocking block, the push block vibrates during the process of the first spring driving the push block to reset, so that impurities adhering to the push block are shaken off into the collecting chamber.

[0022] The ventilation and dust removal device provided by the present invention has at least the following beneficial technical effects:

[0023] (1) By providing a cleaning component connected to the driving drum, impurities attached to the dustproof net can be removed, thereby ensuring the flow of gas in the ventilation pipe and the air quality in the coal mine; no manual removal is required, reducing the labor intensity of the operator.

[0024] The second purpose of the present invention is to provide a mine hydrogen sulfide treatment equipment to solve the technical problems in the prior art that the filter of the ventilation duct accumulates solid sulfide, the mesh of the filter is blocked, the air flow through the filter is reduced, and the removal efficiency of hydrogen sulfide gas is low.

[0025] The present invention provides a mine hydrogen sulfide treatment equipment, comprising the above-mentioned ventilation and dust removal device and a spray rod, wherein the spray rod is fixed in the ventilation pipe, and the spray rod has a plurality of spray ports for spraying an alkaline solution onto the dustproof net to form an alkaline solution water curtain, wherein the hydrogen sulfide gas reacts chemically with the alkaline solution water curtain to generate solid sulfide, and the solid sulfide adheres to the dustproof net.

[0026] Optionally, the mine hydrogen sulfide treatment equipment also includes an electrochemical sensor, an induced draft device and a controller, the induced draft device introduces an airflow containing hydrogen sulfide gas into the ventilation pipe, and the electrochemical sensor is electrically connected to the controller for monitoring the concentration of hydrogen sulfide gas in the ventilation pipe; the controller is configured to: if the concentration of the hydrogen sulfide gas monitored by the electrochemical sensor is greater than a preset gas concentration value, control the induced draft device to introduce air into the ventilation pipe, control the spray amount of the alkaline solution sprayed by the spray rod, and control the rotation speed of the driving drum.

[0027] Optionally, the mine hydrogen sulfide treatment equipment also includes an early warning system, which is electrically connected to the controller, and the controller is configured to: if the concentration of the hydrogen sulfide gas monitored by the electrochemical sensor is greater than the preset gas concentration value, the controller controls the early warning system to issue an early warning.

[0028] The mine hydrogen sulfide treatment equipment provided by the present invention has at least the following beneficial technical effects:

[0029] (1) By providing a cleaning component connected to the driving drum, the solid sulfide attached to the dustproof net is cleaned, ensuring that the ventilation volume passing through the dustproof net is not affected by the solid sulfide, thereby increasing the ventilation area and improving the ventilation efficiency; and improving the removal effect of hydrogen sulfide gas;

[0030] (2) Using electrochemical sensors to monitor the concentration of hydrogen sulfide in the air in real time, if the concentration of hydrogen sulfide increases, the removal intensity of hydrogen sulfide is increased by controlling the induced air volume of the induced air device and the amount of alkaline solution sprayed by the spray rod, and the speed of the driving drum is increased to increase the cleaning effect of the dustproof net, so as to prevent the dustproof net from being blocked during long-term use, so that the hydrogen sulfide concentration can be removed in a timely and effective manner when it increases, thereby ensuring the safety of miners;

[0031] (3) Electrochemical sensors are used to monitor the concentration of hydrogen sulfide in the air in real time. If the concentration of hydrogen sulfide increases, the early warning system is triggered to issue a timely warning, allowing miners to avoid risks and take emergency measures in a timely and effective manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a partial assembly of a ventilation and dust removal device provided by an embodiment of the present invention;

[0033] Figure 2 for Figure 1 The middle circle shows the enlarged structural schematic diagram of the portion A;

[0034] Figure 3 A schematic diagram of a portion of the structure of a cleaning component in a ventilation and dust removal device provided by an embodiment of the present invention;

[0035] Figure 4 for Figure 3 Schematic diagram of the structure of the middle B section;

[0036] Figure 5 A schematic diagram of a partial assembly of a ventilation and dust removal device provided by an embodiment of the present invention;

[0037] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure of the circled portion at C in the middle;

[0038] Figure 7 A schematic diagram of the assembly of a ventilation and dust removal device provided by an embodiment of the present invention;

[0039] Figure 8 for Figure 7 An enlarged structural diagram of the middle drive chute;

[0040] Fig. 9 A schematic diagram of the assembly of a mine hydrogen sulfide treatment equipment provided by an embodiment of the present invention.

[0041] Description of reference numerals:

[0042] 1. Ventilation pipe;

[0043] 2. Cleaning mechanism; 21. Cleaning housing; 211. First rotating shaft; 212. Driving slide; 2121. First arc groove; 2122. Second arc groove; 2123. Third arc groove; 213. Annular groove; 214. First bevel gear; 22. Driving drum; 221. Strip groove; 23. Cleaning assembly; 231. Scraper; 2311. First sub-plate; 2312. Second sub-plate; 2313. Accommodating groove; 2314. Scraper block; 232. Second rotating shaft; 2321. Second bevel gear; 233. Cleaning roller brush; 234. Combing plate; 2341. Support rod; 235. Cleaning block; 2351. Guide rod; 236. Push block; 237. Block; 24. Collecting chamber;

[0044] 3. Dust-proof net;

[0045] 4. Liquid spray rod; 41. Liquid spray port. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following is a brief description of the present invention in conjunction with the attached drawings. Figure 1-9 The specific embodiments of the present invention are described in detail.

[0047] In the present invention, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure.

[0048] In the present invention, terms such as "inside", "outside", "upper", and "lower" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0049] The embodiment of the present invention provides a ventilation and dust removal device, see the attached Figure 1 and Figure 2 The ventilation and dust removal device comprises a ventilation pipe 1 and a cleaning mechanism 2, and a dustproof net 3 is provided at the end of the ventilation pipe 1; the cleaning mechanism 2 comprises a cleaning housing 21, a driving drum 22 and a cleaning assembly 23, the cleaning housing 21 is fixed at the end of the ventilation pipe 1, a first rotating shaft 211 is fixed in the cleaning housing 21, the first rotating shaft 211 is located outside the ventilation pipe 1, the driving drum 22 is pivoted to the first rotating shaft 211, and the cleaning assembly 23 has a plurality of cleaning components 23 arranged at intervals along the circumferential direction of the driving drum 22, and is used to remove impurities attached to the dustproof net 3. In this way, the impurities attached to the dustproof net 3 are removed, thereby ensuring the flow of gas in the ventilation pipe 1 and the air quality in the coal mine; no manual removal is required, which reduces the labor intensity of the operator.

[0050] The embodiment of the present invention takes the ventilation and dust removal device as an example for the treatment of hydrogen sulfide in a mine. Figure 1 and Fig. 9 The induced draft device introduces the airflow containing hydrogen sulfide gas into the ventilation pipe 1. A liquid spraying rod 4 is provided in the ventilation pipe 1. The liquid spraying rod 4 has a plurality of liquid spraying ports 41 for spraying alkaline solution to the dustproof net 3 to form an alkaline solution water curtain. The hydrogen sulfide gas in the airflow reacts chemically with the alkaline solution water curtain to generate solid sulfide. The solid sulfide adheres to the dustproof net 3 to achieve the removal of hydrogen sulfide gas. The ventilation and dust removal device provided in the embodiment of the present invention can clean the solid sulfide attached to the dustproof net 3 by providing a cleaning component 23 connected to the driving drum 22, thereby ensuring that the ventilation volume passing through the dustproof net 3 is not affected by the solid sulfide, thereby increasing the ventilation area and improving the ventilation efficiency; and improving the removal effect of hydrogen sulfide gas.

[0051] In the embodiment of the present invention, the driving drum 22 is connected to a driving assembly, and the driving assembly is used to drive the driving drum 22 to rotate around the first rotating shaft 211. The driving assembly can be a gear ring mechanism or a worm gear mechanism.

[0052] See attached Figure 3 and Figure 4 In the embodiment of the present invention, the cleaning component 23 includes a scraper 231, and the scraper 231 is fixed on the driving drum 22. In this way, the scraper 231 is used to scrape off impurities from the dustproof net 3, effectively preventing the impurities from clogging the dustproof net 3, thereby ensuring the amount of airflow through the dustproof net 3. Taking the application in the treatment of hydrogen sulfide in a mine as an example, it can effectively prevent solid sulfide from clogging the dustproof net 3, thereby ensuring the amount of airflow through the dustproof net 3, thereby effectively improving the removal effect of hydrogen sulfide.

[0053] See attached Figure 4 In the embodiment of the present invention, along the scraping direction of the scraper 231, the scraper 231 includes a first sub-plate 2311 and a second sub-plate 2312 which are arranged opposite to each other, the upper end of the first sub-plate 2311 is higher than the upper end of the second sub-plate 2312, the lower end of the first sub-plate 2311 and the lower end of the second sub-plate 2312 are connected to each other, and the first sub-plate 2311 and the second sub-plate 2312 form a receiving groove 2313 for receiving impurities. Such an arrangement prevents the scraped impurities from falling into the ventilation pipe 1.

[0054] See attached Figure 4 In the embodiment of the present invention, a scraper block 2314 is provided at the upper end of the first sub-plate 2311 for scraping off impurities on the dustproof net 3.

[0055] In the embodiment of the present invention, the scraper block 2314 has an inclined surface, which ensures that the impurities on the dustproof net 3 can be effectively scraped off.

[0056] See attached Figure 4In the embodiment of the present invention, for example, the cross-sectional shape of the receiving groove 2313 can be V-shaped; for another example, the cross-sectional shape of the receiving groove 2313 can be trapezoidal. Such a configuration provides a guide for impurities to fall into the receiving groove 2313, so that the scraped impurities fall into the receiving groove 2313, preventing the scraped impurities from falling into the ventilation pipe 1.

[0057] See attached Figure 4 In the embodiment of the present invention, the cleaning assembly 23 further includes a second rotating shaft 232 and a cleaning roller brush 233. The second rotating shaft 232 is pivotally connected to the circumferential surface of the driving drum 22. The cleaning roller brush 233 is fixedly arranged on the second rotating shaft 232 and is located in the receiving groove 2313 of the scraper 231, and is used to clean the impurities of the dustproof net 3. In this way, the impurities attached to the dustproof net 3 are cleaned out by the cleaning roller brush 233, and the impurities are scraped off by the scraper 231, thereby preventing the impurities from clogging the dustproof net 3, thereby ensuring the flow rate of the airflow in the dustproof net 3. Taking the application in the treatment of hydrogen sulfide in mines as an example, it can effectively prevent solid sulfide from clogging the dustproof net 3, thereby ensuring the flow rate of the airflow in the dustproof net 3 and effectively improving the removal effect of hydrogen sulfide.

[0058] See attached Figure 2 In the embodiment of the present invention, one end of the second rotating shaft 232 passes through the inner wall surface of the driving rotating drum 22 and is fixedly provided with a second bevel gear 2321; the first rotating shaft 211 is fixedly provided with a first bevel gear 214, and the second bevel gear 2321 can be meshed with the first bevel gear 214. In this way, the driving rotating drum 22 drives the second rotating shaft 232 to move around the axis direction of the first shaft; the second bevel gear 2321 is meshed with the first bevel gear 214, driving the second rotating shaft 232 to rotate around its own axis, thereby driving the cleaning roller brush 233 to rotate.

[0059] See attached Figure 2 In the embodiment of the present invention, the first bevel gear 214 is a semicircular bevel gear, and the arc-shaped tooth surface of the semicircular bevel gear is close to one side of the ventilation pipe 1; if the scraper 231 is located below the ventilation pipe 1, the second bevel gear 2321 is meshed with the semicircular bevel gear, driving the second rotating shaft 232 to drive the cleaning roller brush 233 to roll. In this way, if the cleaning roller brush 233 is located below the dustproof net 3, the second bevel gear 2321 is meshed with the semicircular bevel gear, so that the second rotating shaft 232 rotates around its own rotating shaft, thereby driving the cleaning roller brush 233 to rotate; on the contrary, when the cleaning roller brush 233 is far away from the bottom of the dustproof net 3, the second bevel gear 2321 is disengaged from the semicircular bevel gear, so that the second rotating shaft 232 does not rotate around its own rotating shaft.

[0060] See attached Figure 4In the embodiment of the present invention, the cleaning assembly 23 further includes a comb plate 234, which is movably connected to the circumferential surface of the driving drum 22 and is located below the cleaning roller brush 233. The comb plate 234 has a plurality of tooth grooves, which can abut against the cleaning roller brush 233 and are used to scrape impurities adhering to the cleaning roller brush 233 into the receiving groove 2313 of the scraper 231. In this way, the cleaning roller brush 233 is cleaned by the comb plate 234, so that the impurities adhering to the cleaning roller brush 233 are scraped off and gathered in the receiving groove 2313 of the scraper 231.

[0061] See attached Figure 2 and Figure 6 In the embodiment of the present invention, the driving drum 22 is provided with a plurality of strip grooves 221, and the length direction of the strip grooves 221 is along the axial direction of the driving drum 22; the circumferential surface of the first rotating shaft 211 is provided with an annular groove 213, and the annular groove 213 includes a first semi-annular groove, a first connecting groove, a second semi-annular groove and a second connecting groove which are sequentially connected to each other, and the first semi-annular groove is closer to one side of the ventilation pipe 1 than the second semi-annular groove, and the first semi-annular groove is higher than the second semi-annular groove; the comb plate 234 is close to the first rotating shaft A support rod 2341 is fixed to one side of the scraper 211, one end of the support rod 2341 passes through the strip groove 221 and is slidably connected to the annular groove 213, and the annular groove 213 is configured as follows: if the support rod 2341 is slidably connected to the first semi-annular groove, the comb plate 234 abuts against the cleaning roller brush 233 to scrape off the impurities adhering to the cleaning roller brush 233 in the receiving groove 2313 of the scraper 231; if the support rod 2341 is slidably connected to the second semi-annular groove, the comb plate 234 is away from the cleaning roller brush 233. In this way, the scraped impurities are gathered in the receiving groove 2313 of the scraper 231; when the cleaning roller brush 233 is located outside the dustproof net 3, the comb plate 234 is lowered, thereby separating the comb plate 234 from the cleaning roller brush 233.

[0062] See attached Figure 2 , Figure 4 , Figure 6 and Figure 7 In the embodiment of the present invention, the bottom of the cleaning housing 21 has a collecting chamber 24, and the collecting chamber 24 is arranged adjacent to the ventilation pipe 1; the cleaning assembly 23 also includes a cleaning block 235, and the cleaning block 235 is slidably connected to the scraper 231 along the length direction of the scraper 231; the cleaning block 235 has a first scraping portion, and the first scraping portion is matched with the inner wall surface of the receiving groove 2313 of the scraper 231, and is used to clean the impurities in the receiving groove 2313 into the collecting chamber 24. In this way, the cleaning block 235 moves along the receiving groove 2313 of the scraper 231, and the impurities in the receiving groove 2313 are cleaned into the collecting chamber 24.

[0063] See attached Figure 4In the embodiment of the present invention, the cleaning block 235 has an arc surface portion and a second scraping portion connected to each other, the arc surface portion is used to avoid the cleaning roller brush 233, and the second scraping portion can be attached to the comb plate 234, and is used to clean the impurities on the comb plate 234 into the collection chamber 24. It should be noted that if the support rod 2341 is slidably connected to the second semi-annular groove, the comb plate 234 is attached to the second scraping portion. With such a configuration, the cleaning block 235 can not only clean the impurities in the receiving groove 2313 of the scraper 231 into the collection chamber 24, but also clean the impurities on the comb plate 234 into the collection chamber 24.

[0064] See attached Figure 7 and Figure 8 In the embodiment of the present invention, the cleaning housing 21 is provided with a driving slide groove 212, and the driving slide groove 212 includes a first arc groove 2121, a second arc groove 2122 and a third arc groove 2123 connected in sequence, and the second arc groove 2122 and the third arc groove 2123 are symmetrically arranged; the cleaning block 235 is connected with a guide rod 2351, and the guide rod 2351 is slidably connected to the driving slide groove 212, and the driving slide groove 212 is configured as follows: if the scraper 231 is located below the ventilation pipe 1, the guide rod 2351 slides along the first arc groove 2121, so that the cleaning block 235 is located near If the scraper 231 moves from the bottom of the ventilation pipe 1 to the top of the collecting chamber 24, the guide rod 2351 slides along the second arc groove 2122, driving the cleaning block 235 to slide along the first direction of the receiving groove 2313 to clean the impurities in the receiving groove 2313 and the impurities on the comb plate 234 in the collecting chamber 24; if the scraper 231 moves from the top of the collecting chamber 24 to the bottom of the ventilation pipe 1, the guide rod 2351 slides along the third arc groove 2123, driving the cleaning block 235 to slide in the opposite direction of the first direction of the receiving groove 2313. In this way, each time the scraper 231 cleans the dustproof net 3, the cleaning roller brush 233 remains clean, thereby effectively improving the cleaning effect of the scraper 231.

[0065] See attached Figure 4 and Figure 6 In the embodiment of the present invention, a block 237 is provided on the side of the scraper 231 away from the driving drum 22, and a first spring is connected between the block 237 and the scraper 231; a push block 236 is connected to the side of the cleaning block 235 away from the driving drum 22, and a second spring is connected between the push block 236 and the cleaning block 235; the block 237 and the push block 236 are configured such that: if the push block 236 abuts against the block 237, the push block 236 deflects; if the push block 236 is separated from the block 237, the push block 236 vibrates during the process of the second spring driving the push block 236 to reset, so that the impurities adhered to the push block 236 are shaken off into the collection chamber 24. This arrangement prevents the push block 236 from adhering to impurities during long-term cleaning work, thereby affecting the cleaning effect of the dustproof net 3.

[0066] In the embodiment of the present invention, the side of the block 237 away from the driving drum 22 has an inclined surface structure. In this way, during the resetting process of the cleaning block 235, the block 237 slides on the inclined surface structure, so that the push block 236 can be effectively reset.

[0067] The working principle of a ventilation and dust removal device provided by an embodiment of the present invention is as follows:

[0068] In the process of driving the cleaning assembly 23 to slide along the dustproof net 3 by the driving drum 22, the impurities in the dustproof net 3 are cleaned out by the cleaning roller brush 233, and then the impurities on the dustproof net 3 are scraped off by the scraper 231, and the scraped impurities are retained in the receiving groove 2313 of the scraper 231; at the same time, the cleaning roller brush 233 is cleaned by the comb plate 234, so that the impurities adhering to the cleaning roller brush 233 are scraped off and gathered in the receiving groove 2313 of the scraper 231; then, when the cleaning assembly 23 moves to the top of the collecting chamber 24, the guide rod 2351 slides along the second arc groove 2122, driving the cleaning block 235 to slide along the first direction of the receiving groove 2313 of the scraper 231 to clean the impurities in the receiving groove 2313 and the comb plate 234 into the collecting chamber 24, thereby ensuring the cleanliness of the scraper 231 and improving the cleaning effect of the scraper 231 on the dustproof net 3, ensuring that the ventilation volume in the dustproof net 3 is not affected by impurities, thereby effectively improving the ventilation efficiency.

[0069] The present invention also provides a mine hydrogen sulfide treatment device, see the attached Fig. 9 The mine hydrogen sulfide treatment equipment includes the above-mentioned ventilation and dust removal device and a liquid spraying rod 4, the liquid spraying rod 4 is fixed in the ventilation pipe 1, and the liquid spraying rod 4 has a plurality of liquid spraying ports 41, which are used to spray alkaline solution to the dustproof net 3 to form an alkaline solution water curtain, and the hydrogen sulfide gas reacts chemically with the alkaline solution water curtain to generate solid sulfide, and the solid sulfide adheres to the dustproof net 3. In this way, by setting a cleaning component 23 connected to the driving drum 22, the solid sulfide attached to the dustproof net 3 is cleaned, and the ventilation volume passing through the dustproof net 3 is ensured not to be affected by the solid sulfide, thereby increasing the ventilation area and improving the ventilation efficiency; and improving the removal effect of hydrogen sulfide gas.

[0070] In the embodiment of the present invention, the mine hydrogen sulfide treatment equipment further includes an electrochemical sensor, an induced draft device and a controller. The induced draft device is connected to the ventilation pipe 1, and the electrochemical sensor is electrically connected to the controller for monitoring the concentration of hydrogen sulfide gas in the ventilation pipe 1; the induced draft device, the liquid spraying rod 4 and the driving assembly of the driving drum 22 are all electrically connected to the controller, and the controller is configured to: if the concentration of hydrogen sulfide gas monitored by the electrochemical sensor is greater than the preset gas concentration value, then control the induced draft device to introduce air into the ventilation pipe 1, control the injection amount of the alkaline solution sprayed by the liquid spraying rod 4 and control the rotation speed of the driving drum 22. Specifically, the induced draft device is controlled to increase the amount of induced draft introduced into the ventilation pipe 1, and increase the injection amount of the alkaline solution in the liquid spraying rod 4 to increase the thickness of the liquid curtain and improve the removal intensity of hydrogen sulfide. With such an arrangement, the concentration of hydrogen sulfide in the air is monitored in real time using an electrochemical sensor. If the concentration of hydrogen sulfide increases, the air volume of the induced draft equipment and the spray volume of the alkaline solution sprayed from the spray rod 4 are controlled to increase the intensity of hydrogen sulfide removal, and the rotation speed of the driving drum 22 is increased to increase the cleaning effect of the dustproof net 3, thereby preventing the dustproof net 3 from being blocked during long-term use, so that the hydrogen sulfide concentration can be removed in a timely and effective manner when it increases, thereby ensuring the life safety of the miners.

[0071] In an embodiment of the present invention, the mine hydrogen sulfide treatment equipment also includes an early warning system, which is electrically connected to a controller, and the controller is configured to: if the concentration of hydrogen sulfide gas monitored by the electrochemical sensor is greater than a preset gas concentration value, the controller controls the early warning system to issue an early warning. In this way, the electrochemical sensor is used to monitor the concentration of hydrogen sulfide in the air in real time. If the concentration of hydrogen sulfide increases, the early warning system is triggered to issue an early warning in time, so that miners can avoid risks and carry out emergency treatment in a timely and effective manner.

[0072] The working principle of a mine hydrogen sulfide treatment device provided by an embodiment of the present invention is as follows:

[0073] The electrochemical sensor monitors the concentration of hydrogen sulfide gas in the ventilation pipe 1;

[0074] If it is determined that the concentration of hydrogen sulfide gas is greater than the preset gas concentration value, the air induction device is controlled to introduce the airflow into the ventilation pipe 1, and the spray rod 4 is controlled to spray the alkaline solution onto the dustproof net 3 to form an alkaline solution water curtain. Then, the airflow in the ventilation pipe 1 passes through the water curtain and the dustproof net 3, and the hydrogen sulfide in the airflow reacts with the alkaline solution to generate solid sulfide which is isolated on the dustproof net 3, thereby effectively removing the hydrogen sulfide in the airflow;

[0075] In the process of controlling the driving drum 22 to drive the cleaning assembly 23 to slide along the dustproof net 3, the cleaning roller brush 233 cleans out the solid sulfide attached to the dustproof net 3, and then the scraper 231 scrapes off the solid sulfide attached to the dustproof net 3, and accumulates the scraped solid sulfide in the receiving groove 2313 of the scraper 231; at the same time, the comb plate 234 cleans the cleaning roller brush 233, so that the solid sulfide adhered to the cleaning roller brush 233 is scraped off and accumulated in the receiving groove 2313 of the scraper 231; the guide rod 2351 slides along the first arc groove 2121 to make the cleaning block 235 located at close to the position of the first rotating shaft 211; then, when the cleaning component 23 moves above the collecting chamber 24, the guide rod 2351 slides along the second arc groove 2122, driving the cleaning block 235 to slide along the first direction of the receiving groove 2313 of the scraper 231 to clean the solid sulfide in the receiving groove 2313 and the solid sulfide on the comb plate 234 into the collecting chamber 24, thereby ensuring the cleanliness of the scraper 231 and improving the cleaning effect of the scraper 231 on the dustproof net 3, thereby ensuring that the ventilation volume in the dustproof net 3 is not affected by the solid sulfide, thereby effectively improving the ventilation efficiency and the removal effect of hydrogen sulfide.

[0076] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A ventilation and dust removal device, characterized in that: The invention comprises a ventilation pipe (1) and a cleaning mechanism (2), wherein a dustproof net (3) is arranged at the end of the ventilation pipe (1); the cleaning mechanism (2) comprises a cleaning shell (21), a driving drum (22) and a cleaning assembly (23), wherein the cleaning shell (21) is fixedly arranged at the end of the ventilation pipe (1), a first rotating shaft (211) is fixedly arranged in the cleaning shell (21), the first rotating shaft (211) is located outside the ventilation pipe (1), the driving drum (22) is pivotally connected to the first rotating shaft (211), and the cleaning assembly (23) has a plurality of cleaning components (23) arranged at intervals along the circumferential direction of the driving drum (22) for removing impurities attached to the dustproof net (3).

2. The ventilation and dust removal device according to claim 1, characterized in that: The cleaning component (23) comprises a scraper (231), and the scraper (231) is fixed on the driving drum (22).

3. The ventilation and dust removal device according to claim 2, characterized in that: Along the scraping direction of the scraper (231), the scraper (231) includes a first sub-plate (2311) and a second sub-plate (2312) that are arranged opposite to each other, the upper end of the first sub-plate (2311) is higher than the upper end of the second sub-plate (2312), the lower end of the first sub-plate (2311) and the lower end of the second sub-plate (2312) are connected to each other, and the first sub-plate (2311) and the second sub-plate (2312) form a receiving groove (2313) for receiving impurities.

4. The ventilation and dust removal device according to claim 3, characterized in that: A scraper (2314) is provided at the upper end of the first sub-plate (2311) for scraping off impurities from the dustproof net (3); And / or, the cross-sectional shape of the receiving groove (2313) is V-shaped or trapezoidal.

5. The ventilation and dust removal device according to claim 3, characterized in that: The cleaning assembly (23) further comprises a second rotating shaft (232) and a cleaning roller brush (233), wherein the second rotating shaft (232) is pivotally connected to the circumferential surface of the driving drum (22), and the cleaning roller brush (233) is fixedly mounted on the second rotating shaft (232) and is located in the receiving groove (2313) of the scraper (231), and is used for cleaning impurities on the dustproof net (3).

6. The ventilation and dust removal device according to claim 5, characterized in that: One end of the second rotating shaft (232) passes through the inner wall surface of the driving rotating drum (22) and is fixedly provided with a second bevel gear (2321); A first bevel gear (214) is fixedly disposed on the first rotating shaft (211), and the second bevel gear (2321) can be meshed with the first bevel gear (214).

7. The ventilation and dust removal device according to claim 6, characterized in that: The first bevel gear (214) is a semicircular bevel gear, and the arc-shaped tooth surface of the semicircular bevel gear is close to one side of the ventilation pipe (1); if the scraper (231) is located below the ventilation pipe (1), the second bevel gear (2321) is engaged with the semicircular bevel gear, driving the second rotating shaft (232) to drive the cleaning roller brush (233) to roll.

8. The ventilation and dust removal device according to any one of claims 3 to 7, characterized in that: The cleaning component (23) further comprises a comb plate (234), wherein the comb plate (234) is movably connected to the driving drum (22) and is located below the cleaning roller brush (233), and the comb plate (234) has a plurality of tooth grooves, wherein the plurality of tooth grooves can abut against the cleaning roller brush (233) and are used to scrape impurities adhering to the cleaning roller brush (233) into the receiving groove (2313) of the scraper (231).

9. The ventilation and dust removal device according to claim 8, characterized in that: The driving drum (22) is provided with a plurality of strip-shaped grooves (221); The circumferential surface of the first rotating shaft (211) is provided with an annular groove (213), the annular groove (213) comprising a first semi-annular groove, a first connecting groove, a second semi-annular groove and a second connecting groove which are sequentially connected to each other, the first semi-annular groove being closer to one side of the ventilation pipe (1) than the second semi-annular groove, and the first semi-annular groove being higher than the second semi-annular groove; A support rod (2341) is fixedly provided on one side of the comb plate (234) close to the first rotating shaft (211), one end of the support rod (2341) passes through the strip groove (221) and is slidably connected to the annular groove (213), and the annular groove (213) is configured as follows: if the support rod (2341) is slidably connected to the first semi-annular groove, the comb plate (234) abuts against the cleaning roller brush (233) to scrape off impurities adhered to the cleaning roller brush (233) in the receiving groove (2313) of the scraper (231); if the support rod (2341) is slidably connected to the second semi-annular groove, the comb plate (234) is away from the cleaning roller brush (233).

10. The ventilation and dust removal device according to claim 9, characterized in that: The bottom of the cleaning housing (21) is provided with a collecting chamber (24), and the collecting chamber (24) is arranged adjacent to the ventilation pipe (1); The cleaning assembly (23) further comprises a cleaning block (235) which is slidably connected to the scraper (231) along the length direction of the scraper (231); the cleaning block (235) comprises a first scraping portion which cooperates with the inner wall surface of the receiving groove (2313) of the scraper (231) and is used to clean impurities in the receiving groove (2313) into the collecting chamber (24).

11. The ventilation and dust removal device according to claim 10, characterized in that: The cleaning block (235) comprises an arcuate portion and a second scraping portion connected to each other, the arcuate portion is used to avoid the cleaning roller brush (233), and the second scraping portion can be attached to the comb plate (234) and is used to clean impurities on the comb plate (234) into the collection chamber (24); And / or, the cleaning shell (21) is provided with a driving slide groove (212), the driving slide groove (212) comprises a first arc groove (2121), a second arc groove (2122) and a third arc groove (2123) which are connected in sequence, and the second arc groove (2122) and the third arc groove (2123) are symmetrically arranged; the cleaning block (235) is connected with a guide rod (2351), and the guide rod (2351) is slidably connected to the driving slide groove (212), and the driving slide groove (212) is configured as follows: if the scraper (231) is located below the ventilation pipe (1), the guide rod (2351) slides along the first arc groove (2121) so that the cleaning block (235) is located close to the ventilation pipe (1). near one end of the first rotating shaft (211); if the scraper (231) moves from the bottom of the ventilation pipe (1) to the top of the collecting chamber (24), the guide rod (2351) slides along the second arc-shaped groove (2122), driving the cleaning block (235) to slide along the first direction of the receiving groove (2313) to clean the impurities in the receiving groove (2313) into the collecting chamber (24); if the scraper (231) moves from the top of the collecting chamber (24) to the bottom of the ventilation pipe (1), the guide rod (2351) slides along the third arc-shaped groove (2123), driving the cleaning block (235) to slide in the opposite direction of the first direction of the receiving groove (2313); And / or, a clamping block (237) is provided on a side of the scraper (231) away from the driving drum (22), and a first spring is connected between the clamping block (237) and the scraper (231); a push block (236) is connected to a side of the cleaning block (235) away from the driving drum (22), and a second spring is connected between the push block (236) and the cleaning block (235).

12. A mine hydrogen sulfide treatment equipment, characterized in that: It comprises a ventilation and dust removal device and a liquid spray rod (4) as described in any one of claims 1 to 11, wherein the liquid spray rod (4) is fixedly arranged in the ventilation pipe (1), and the liquid spray rod (4) has a plurality of liquid spray ports (41) for spraying an alkaline solution onto the dustproof net (3) to form an alkaline solution water curtain, wherein the hydrogen sulfide gas reacts chemically with the alkaline solution water curtain to generate solid sulfide, and the solid sulfide adheres to the dustproof net (3).

13. The mine hydrogen sulfide treatment equipment according to claim 12, characterized in that: The mine hydrogen sulfide treatment equipment also includes an electrochemical sensor, an induced draft device and a controller. The induced draft device is connected to the ventilation pipe (1). The electrochemical sensor is electrically connected to the controller and is used to monitor the concentration of hydrogen sulfide gas in the ventilation pipe (1). The induced draft device, the spray rod (4) and the driving component for driving the rotation are all electrically connected to the controller. The controller is configured to: if the concentration of the hydrogen sulfide gas monitored by the electrochemical sensor is greater than a preset gas concentration value, control the induced draft device to introduce air into the ventilation pipe (1), control the injection amount of the alkaline solution sprayed by the spray rod (4) and control the rotation speed of the driving drum (22).

14. The mine hydrogen sulfide treatment equipment according to claim 13, characterized in that: The mine hydrogen sulfide treatment equipment also includes an early warning system, which is electrically connected to the controller. The controller is configured to control the early warning system to issue an early warning if the concentration of the hydrogen sulfide gas monitored by the electrochemical sensor is greater than the preset gas concentration value.

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