An air purification device in a mine tunnel

Abstract

The present application relates to air purification technical field, especially to a kind of mine air purification equipment in roadway, including cloth bag dust collector, filter bag, air inlet pipe and air outlet pipe etc.;Cloth bag dust collector is provided with several filter bags;Cloth bag dust collector is provided with flow channel;Cloth bag dust collector is provided with filter space;Cloth bag dust collector is provided with subspace;Cloth bag dust collector right side is communicated with air inlet pipe;Air inlet pipe other end is connected with air inlet mechanism;Cloth bag dust collector left side is communicated with air outlet pipe;Air outlet pipe other end is communicated with air outlet mechanism;The present application is realized by extruding block extruding filter bag, tear the connection of oil stain in filter bag hole and hole, so that the above-mentioned oil stain protrudes outward, then through first scraper ring, the above-mentioned oil stain is scraped, realize the cleaning of oil stain in filter bag hole, avoid filter bag hole remaining oil stain, cause filter bag hole to be blocked by oil stain, affect the detection accuracy of subsequent filter bag hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purification, in particular to a mine roadway air purification equipment. BACKGROUND

[0002] Mine roadway air purification is an important safety measure aimed at protecting the health of miners and improving the working environment;

[0003] When the mine roadway is excavated, a small or mobile bag-type dust collector is arranged at this point as a local dust removal measure because it is a high dust production point. When the bag-type dust collector is used for filtering, small particle substances contained in the dust will impact the filter bag in the bag-type dust collector for a long time after long-term use. The filter bag will have holes after long-term impact. The holes will allow the dust that should be blocked to directly penetrate the filter bag and enter the purified gas flow, resulting in an increase in the dust content of the exhaust gas, which violates the environmental protection emission standard. Therefore, the filter bag needs to be detected at any time during the process of filtering the polluted gas flow, and the damaged filter bag needs to be treated to make it difficult for dust to pass through the damaged filter bag for filtering. In addition, the mine powder contains oily substances, and the oily substances will form oil stains after long-term adhesion on the filter bag. If the oil stain is located at the hole of the damaged filter bag, the oil stain will block the hole of the damaged filter bag, affecting the detection of the filter bag. SUMMARY

[0004] In order to overcome the shortcomings that the mine powder contains oily substances, the oily substances will form oil stains after long-term adhesion on the filter bag, and if the oil stain is located at the hole of the damaged filter bag, the oil stain will block the hole of the damaged filter bag, affecting the detection of the filter bag, the present application provides a mine roadway air purification equipment.

[0005] The technical scheme of the present application is: a mine roadway air purification equipment, comprising a bag-type dust collector, filter bags, an air inlet pipe and an air outlet pipe; a plurality of filter bags are arranged in the bag-type dust collector; a flow channel is arranged in the bag-type dust collector; a filter space is arranged in the bag-type dust collector; a sinking space is arranged in the bag-type dust collector; the bag-type dust collector is communicated with the air inlet pipe on the right side; the air inlet pipe is connected with an air inlet mechanism at the other end; the bag-type dust collector is communicated with the air outlet pipe on the left side; the air outlet pipe is communicated with an air outlet mechanism at the other end; further comprising a ventilation assembly, an auxiliary cleaning assembly, a detection assembly, an extrusion plate, an extrusion block, a connecting assembly, a first scraper ring and a second scraper ring; the bag-type dust collector is connected with the ventilation assembly for ventilation detection of the filter bags; the bag-type dust collector is connected with the auxiliary cleaning assembly for auxiliary cleaning of impurities on the surface of the filter bags; the bag-type dust collector is connected with the detection assembly for detecting whether there is a hole on the filter bag; the auxiliary cleaning assembly is provided with a plurality of extrusion plates for cleaning the surface of the filter bags; the extrusion plates are located in the adjacent filter bags; each extrusion plate is fixedly connected with an extrusion block on the side close to the filter bag for protruding impurities in the hole of the filter bag; the bag-type dust collector is connected with the connecting assembly; the connecting assembly is connected with a plurality of first scraper rings for cleaning impurities on the surface of the filter bags; each first scraper ring is located on the outer side of the adjacent filter bag; each first scraper ring is connected with a second scraper ring also for cleaning impurities on the surface of the filter bags; a plurality of through holes are formed in each second scraper ring.

[0006] As an improvement of the above scheme, the ventilation assembly comprises an air compressor, ventilation pipes and air pressure pipes; the air compressor is fixedly connected to the front side of the bag-type dust collector; a plurality of ventilation pipes are communicated with the output end of the air compressor; each ventilation pipe penetrates the bag-type dust collector; a plurality of air pressure pipes are communicated with the lower side of each ventilation pipe; each air pressure pipe is located on the upper side of the adjacent filter bag.

[0007] As the improvement of the above-mentioned scheme, the auxiliary cleaning assembly comprises a high-pressure air pump, air conveying pipes, first pneumatic telescopic rods, connecting rings, second pneumatic telescopic rods, micro air pumps and fixing rings; the high-pressure air pump is fixed to the rear side of the bag-type dust collector; a plurality of air conveying pipes are connected to the output end of the high-pressure air pump; each air conveying pipe penetrates the bag-type dust collector; each air conveying pipe is located on the inner side of the adjacent air conveying pipe; a plurality of first pneumatic telescopic rods are connected to the lower side of each air conveying pipe; each first pneumatic telescopic rod is located on the inner side of the adjacent filter bag; each first pneumatic telescopic rod penetrates the adjacent air conveying pipe, and each first pneumatic telescopic rod does not contact the inner wall of the adjacent air conveying pipe; an electric valve is arranged in each first pneumatic telescopic rod; a connecting ring is fixed to the lower side of each first pneumatic telescopic rod; each connecting ring is arranged in a hollow structure; a plurality of second pneumatic telescopic rods arranged in a ring array are connected to and fixed to each connecting ring; the telescopic end of each second pneumatic telescopic rod is fixed to the adjacent pressing plate; a micro air pump is fixed to the lower side of each connecting ring; a plurality of fixing rings are fixed in each filter bag; the diameters of the fixing rings located in the same filter bag gradually increase from bottom to top.

[0008] As the improvement of the above-mentioned scheme, the detection assembly comprises driving members, a cover plate, pressure sensors and a connecting plate; a plurality of driving members are fixed to the inner top surface of the bag-type dust collector; the telescopic ends of all the driving members are fixed to the cover plate; a plurality of pressure sensors are fixed to the lower side of the cover plate; each pressure sensor is located on the upper side of the adjacent filter bag; a connecting plate is fixed in the bag-type dust collector; the upper end of each filter bag penetrates the connecting plate; and the upper end of each filter bag is fixed to the connecting plate.

[0009] As the improvement of the above-mentioned scheme, the connecting assembly comprises power units, connecting frames, fixing plates, electric lockers and bottom plates; the bag-type dust collector is connected with the power units; the connecting frames are connected to the power units; the connecting frames are driven by the power units to move up and down; each connecting frame is fixed to the adjacent one; a plurality of fixing plates are fixed in the bag-type dust collector; each fixing plate is located on the lower side of the connecting frame; an electric locker is fixed to the lower side of each fixing plate; a bottom plate is fixed to the lower side of each filter bag; the telescopic end of each electric locker penetrates the adjacent bottom plate; and the telescopic end of each electric locker is connected to the adjacent first pneumatic telescopic rod.

[0010] As the improvement of the above-mentioned scheme, each filter bag is arranged in a funnel shape.

[0011] As the improvement of the above-mentioned scheme, each pressing plate is arranged in a downward inclined shape.

[0012] As the improvement of the above-mentioned scheme, each first scraping ring is arranged in a circular truncated cone shape; and each second scraping ring is arranged in a circular truncated cone shape.

[0013] As the improvement of the above-mentioned scheme, the micro motor and the guide plate are further included; each micro motor is fixedly connected with a guide plate.

[0014] As the improvement of the above-mentioned scheme, the guide plate is arranged as an arc-shaped plate with the middle part protruding upward.

[0015] The present application has the following advantages: the present application realizes the extrusion of the filter bag by the extrusion block, the oil stains in the holes of the filter bag are torn at the connection of the holes, so that the oil stains are protruded outward, and the oil stains are scraped off by the first scraper ring, so that the oil stains in the holes of the filter bag are cleaned, the holes of the filter bag are prevented from being blocked by the oil stains, and the detection accuracy of the holes of the filter bag is affected.

[0016] By keeping the first pneumatic telescopic rod in the contracted state, the contact area between the damaged filter bag and the contaminated gas flow is reduced, so that the filtering effect of the damaged filter bag on the contaminated gas flow is greatly reduced, so that the contaminated gas flow is filtered by the remaining intact filter bag, the damaged filter bag is prevented from continuing to filter the contaminated gas flow, the contaminated gas flow is purified, and the dust content in the purified gas flow is affected.

[0017] By forming a protection space by the first scraper ring, the second scraper ring and the bottom plate, and wrapping the stacked filter bags by the protection space, the contact area between the contaminated gas flow and the filter bags is further reduced, so that the contaminated gas flow is difficult to be filtered by the stacked filter bags, the purified gas flow is further protected, and the cleanliness of the purified gas flow is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings:

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the mine roadway air purification equipment of the present application;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the ventilation assembly, the bag filter and the filter bag combination of the present application, wherein the bag filter is processed in cross section;

[0021] Figure 3 It is a three-dimensional structure schematic diagram of the ventilation assembly, the bag filter and the detection assembly combination of the present application, wherein the bag filter is processed in cross section;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the connection assembly, the bag filter and the filter bag combination of the present application, wherein the bag filter and the filter bag are processed in cross section;

[0023] Figure 5 It is a combined perspective structural schematic view of the connecting assembly, the extrusion plate, the extrusion block, the first scraping ring and the second scraping ring of the application, wherein the first scraping ring and the second scraping ring are cut open;

[0024] Figure 6 It is a combined front view of the detection assembly, the cloth bag dust collector and the filter bag of the application, wherein the cloth bag dust collector and the filter bag are cut open;

[0025] Figure 7 It is a combined perspective structural schematic view of the extrusion plate, the extrusion block, the first scraping ring, the second scraping ring, the micro motor and the guide plate of the application, wherein the first scraping ring and the second scraping ring are cut open;

[0026] Figure 8 It is a combined perspective structural schematic view of the second pneumatic telescopic rod, the extrusion plate and the extrusion block of the application in the telescopic state;

[0027] Figure 9 It is a front view of the filter bag in the contracted state of the application.

[0028] Label name in the figure: 1-cloth bag dust collector, 1001-flow channel, 1002-filtering space, 1003-sinking space, 2-filter bag, 3-extrusion plate, 4-extrusion block, 5-first scraping ring, 6-second scraping ring, 6001-through opening, 101-inlet pipe, 102-outlet pipe, 201-air compressor, 202-air pipe, 203-air pressure pipe, 301-high pressure air pump, 302-gas conveying pipe, 303-first pneumatic telescopic rod, 304-connecting ring, 305-second pneumatic telescopic rod, 306-micro air pump, 307-fixing ring, 401-driving part, 402-cover plate, 403-pressure sensor, 404-connecting plate, 501-sliding rail, 502-electric sliding block, 503-connecting frame, 504-fixing plate, 505-electric lock, 506-bottom plate, 601-micro motor, 602-guide plate. DETAILED DESCRIPTION

[0029] The above scheme will be further described in combination with specific examples. It should be understood that these examples are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the examples can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not mentioned are usually the conditions in the conventional experiments.

[0030] Example 1

[0031] As Figure 1 - Figure 9As shown, a mine roadway air purification equipment, including cloth bag dust collector 1, filter bag 2, air inlet pipe 101 and air outlet pipe 102, cloth bag dust collector 1 is provided with a plurality of filter bag 2, cloth bag dust collector 1 is provided with flow channel 1001, cloth bag dust collector 1 is provided with filter space 1002, cloth bag dust collector 1 is provided with subsidence space 1003, cloth bag dust collector 1 right side is communicated with air inlet pipe 101, air inlet pipe 101 other end is connected with air inlet mechanism, cloth bag dust collector 1 left side is communicated with air outlet pipe 102, air outlet pipe 102 other end is communicated with air outlet mechanism,

[0032] It also includes ventilation assembly, auxiliary cleaning assembly, detection assembly, extrusion plate 3, extrusion block 4, connecting assembly, first scraper ring 5, second scraper ring 6, cloth bag dust collector 1 is connected with ventilation assembly, cloth bag dust collector 1 is connected with auxiliary cleaning assembly, cloth bag dust collector 1 is connected with detection assembly, auxiliary cleaning assembly is provided with a plurality of extrusion plate 3, extrusion plate 3 is located in adjacent filter bag 2, each extrusion plate 3 is close to the side of filter bag 2 and is fixedly connected with an extrusion block 4, cloth bag dust collector 1 is connected with connecting assembly, connecting assembly is connected with a plurality of first scraper ring 5, each first scraper ring 5 is located outside adjacent filter bag 2, each first scraper ring 5 is connected with a second scraper ring 6, each second scraper ring 6 is provided with a plurality of through holes 6001.

[0033] Ventilation assembly includes air compressor 201, ventilation pipe 202 and air pressure pipe 203, air compressor 201 is fixedly connected to the upper side of the front side of cloth bag dust collector 1, a plurality of ventilation pipes 202 are communicated on the output end of air compressor 201, each ventilation pipe 202 penetrates cloth bag dust collector 1, two front and rear symmetrical air pressure pipes 203 are communicated on the lower side of each ventilation pipe 202, each air pressure pipe 203 is located on the upper side of adjacent filter bag 2.

[0034] The auxiliary cleaning assembly comprises a high-pressure air pump 301, air conveying pipes 302, first pneumatic telescopic rods 303, connecting rings 304, second pneumatic telescopic rods 305, micro air pumps 306 and fixing rings 307; the high-pressure air pump 301 is fixed to the upper rear side of the cloth bag dust collector 1; a plurality of air conveying pipes 302 are connected to the output end of the high-pressure air pump 301; each air conveying pipe 302 penetrates the cloth bag dust collector 1; each air conveying pipe 302 is located inside the adjacent air pipe 202; the lower side of each air conveying pipe 302 is communicated with two front and rear symmetrical first pneumatic telescopic rods 303; each first pneumatic telescopic rod 303 is located inside the adjacent filter bag 2; each first pneumatic telescopic rod 303 penetrates the adjacent air pipe 203, and each first pneumatic telescopic rod 303 does not contact the inner wall of the adjacent air pipe 203; an electric valve is arranged in each first pneumatic telescopic rod 303, and the electric valve is set as normally open; one connecting ring 304 is fixed to the lower side of each first pneumatic telescopic rod 303; each connecting ring 304 is arranged as a hollow structure; a plurality of second pneumatic telescopic rods 305 arranged in a ring array are communicated and fixed to each connecting ring 304; the telescopic end of each second pneumatic telescopic rod 305 is fixed to the adjacent extrusion plate 3; one micro air pump 306 is fixed to the lower side of each connecting ring 304; a plurality of fixing rings 307 are fixed in each filter bag 2; the diameters of the fixing rings 307 located in the same filter bag 2 gradually increase from bottom to top.

[0035] The detection assembly comprises driving members 401, cover plates 402, pressure sensors 403 and connecting plates 404; two left and right symmetrical driving members 401 are fixed to the inner top surface of the cloth bag dust collector 1, and the driving member 401 is an electric push rod; the telescopic ends of all driving members 401 are commonly fixed with a cover plate 402; a plurality of pressure sensors 403 are fixed to the lower side of the cover plate 402; each pressure sensor 403 is located on the upper side of the adjacent filter bag 2; a connecting plate 404 is fixed in the cloth bag dust collector 1; the upper end of each filter bag 2 penetrates the connecting plate 404; and the upper end of each filter bag 2 is fixed with the connecting plate 404.

[0036] The connecting assembly comprises a power unit, a connecting frame 503, a fixing plate 504, an electric lock 505 and a bottom plate 506; the power unit is connected in the bag-type dust collector 1; the connecting frame 503 is connected on the power unit; the connecting frame 503 is driven to move up and down by the power unit; each connecting frame 503 is fixedly connected with the adjacent first scraping ring 5; a plurality of fixing plates 504 are fixedly connected in the bag-type dust collector 1; each fixing plate 504 is located on the lower side of the connecting frame 503; each fixing plate 504 is fixedly connected with an electric lock 505 on the lower side; each filter bag 2 is fixedly connected with a bottom plate 506 on the lower side; the telescopic end of each electric lock 505 penetrates through the adjacent bottom plate 506; the telescopic end of each electric lock 505 is connected with the adjacent first pneumatic telescopic rod 303; the first pneumatic telescopic rod 303 and the bottom plate 506 are locked by the electric lock 505.

[0037] The power unit comprises a sliding rail 501 and an electric sliding block 502; two left-right symmetrical sliding rails 501 are fixedly connected on the inner side of the bag-type dust collector 1; one electric sliding block 502 is slidingly connected on each sliding rail 501; the two electric sliding blocks 502 are fixedly connected with the connecting frame 503, and the connecting frame 503 is located between the two electric sliding blocks 502.

[0038] Firstly, when the tunneling operation is carried out in the mine tunnel, the dust-containing air generated in the operation is sucked into the air inlet pipe 101 through the air inlet mechanism connected with the air inlet pipe 101 (hereinafter, the 'dust-containing air' is referred to as a pollution airflow), so that the pollution airflow enters the bag-type dust collector 1 along the air inlet pipe 101, and then the pollution airflow flows downward along the flow channel 1001 and enters the sinking space 1003, at this time, the large particle substances in the pollution airflow move downward under the action of gravity and flow out to the collection box on the lower side of the bag-type dust collector 1 along the sinking space 1003, and then the pollution airflow flowing downward along the flow channel 1001 moves upward to the filtering space 1002, so that the pollution airflow is filtered by the filter bag 2 when passing through the filter bag 2, thereby making the dust in the pollution airflow remain on the outer surface of the filter bag 2 and fall downward under the action of gravity, and the filtered air enters the filter bag 2 through the filter bag 2 (hereinafter, the 'filtered air' is referred to as a purified airflow), and then flows upward to the air outlet pipe 102 and flows to the air outside the bag-type dust collector 1 along the air outlet pipe 102, thereby realizing the filtration of the pollution airflow.

[0039] However, due to the dust in the contaminated air flow has viscosity, so that the dust will adhere to the outer surface of the filter bag 2, and the dust adheres to the filter bag 2 for a long time, will cause the filter bag 2 to be blocked, resulting in air can not enter the filter bag 2, reduce the filtering effect of the filter bag 2, therefore, the dust adhered to the surface of the filter bag 2 needs to be cleaned periodically, it is worth noting that, when cleaning the surface of the filter bag 2, the air inlet mechanism needs to be stopped first to suck the dust-containing air into the bag dust collector 1, at this time, due to the dust generated during the mine tunneling needs to be cleaned, therefore, a plurality of bag dust collectors 1 need to be set, when the filter bag 2 in one bag dust collector 1 is cleaned, the remaining bag dust collectors 1 will continue to work, then, after the air inlet mechanism stops working, the electric sliding block 502 is controlled to slide upward along the sliding rail 501, thereby driving the connecting frame 503, the first scraping ring 5 and the second scraping ring 6 to move upward, so that the first scraping ring 5 and the second scraping ring 6 contact the outer surface of the filter bag 2, thereby the dust adhered to the outer surface of the filter bag 2 falls downward under the scraping of the first scraping ring 5 and the second scraping ring 6, thereby the first scraping ring 5 and the second scraping ring 6 realize the secondary scraping of the outer surface of the filter bag 2, improve the cleaning of the dust adhered to the outer surface of the filter bag 2.

[0040] At the same time, when the first scraping ring 5 and the second scraping ring 6 clean the outer surface of the filter bag 2, the electric lock 505 is controlled to move the extension end downward, so that the first pneumatic telescopic rod 303 loses the locking of the electric lock 505, it is worth noting that, at this time, the extension end of the electric lock 505 is still inserted into the bottom plate 506 to lock the bottom plate 506, then, when the first scraping ring 5 and the second scraping ring 6 move upward to the same height as the extrusion plate 3 and the extrusion block 4, the high-pressure gas pump 301 is used to pump air to the air conveying pipe 302 and the first pneumatic telescopic rod 303, so that the first pneumatic telescopic rod 303 shrinks upward, thereby driving the connecting ring 304, the second pneumatic telescopic rod 305 and the micro gas pump 306 to move upward, and then driving the extrusion plate 3 and the extrusion block 4 to move upward, at the same time, the micro gas pump 306 is controlled to inflate the connecting ring 304, so that the gas enters the second pneumatic telescopic rod 305, so that the second pneumatic telescopic rod 305 stretches to the inner wall of the filter bag 2, thereby driving the extrusion plate 3 and the extrusion block 4 to stretch outward to the position shown in the figure, at this time, the extrusion plate 3 and the extrusion block 4 are in contact with the outer surface of the filter bag 2, thereby the dust adhered to the outer surface of the filter bag 2 is removed by the extrusion plate 3 and the extrusion block 4, thereby the dust adhered to the outer surface of the filter bag 2 is removed by the first scraping ring 5 and the second scraping ring 6 and the extrusion plate 3 and the extrusion block 4, improve the cleaning effect of the dust adhered to the outer surface of the filter bag 2. Figure 8In the state shown by the middle right extrusion plate 3 and the extrusion block 4, the extrusion plate 3 and the extrusion block 4 extrude the inner wall of the filter bag 2, so that the position of the filter bag 2 extruded by the extrusion plate 3 and the extrusion block 4 protrudes outward, and the position of the filter bag 2 protruding outward is clamped between the extrusion plate 3 and the extrusion block 4 and the first scraping ring 5 and the second scraping ring 6, so that the extrusion plate 3 and the extrusion block 4 give the first scraping ring 5 and the second scraping ring 6 a fulcrum, improve the cleaning ability of the first scraping ring 5 and the second scraping ring 6 to the outer surface of the filter bag 2, and because the mine powder contains oily substances, the oily substances will form oil stains if they adhere to the filter bag 2 for a long time, and it is difficult for the first scraping ring 5 and the second scraping ring 6 to completely scrape off the oil stains, so that the extrusion plate 3 and the extrusion block 4 ensure that the first scraping ring 5 and the second scraping ring 6 can scrape off the oil stains adhered to the outer surface of the filter bag 2, avoid the oil stains adhering to the outer surface of the filter bag 2, increase the stickiness of the outer surface of the filter bag 2, make the dust more easily adhere to the outer surface of the filter bag 2, increase the rate of dust adhered to the outer surface of the filter bag 2, and make the filter bag 2 more easily clogged by dust, so that the cleaning cycle of the filter bag 2 needs to be shortened, and the mine roadway tunneling work is affected.

[0041] At the same time, if holes appear on the filter bag 2 and the holes are blocked by oil stains, it will affect the detection of whether holes appear on the filter bag 2 subsequently, therefore, when the extrusion plate 3 extrudes the filter bag 2, the extrusion block 4 also extrudes the filter bag 2, so that the filter bag 2 further protrudes outward in a small range under the extrusion of the extrusion block 4, if holes appear on the above-mentioned part, the holes will be enlarged and protrude outward under the extrusion of the extrusion block 4, so that the oil stains in the above-mentioned holes are torn at the connection between the holes and the oil stains protrude outward, so that the first scraping ring 5 scrapes off the oil stains in the process of moving upward, under the influence of gravity, the scraped oil stains move downward along the first scraping ring 5 and fall into the collection box below the sunken space 1003 after passing through the through hole 6001, realize the cleaning of the oil stains in the holes of the filter bag 2, avoid the residual oil stains in the holes of the filter bag 2, cause the holes on the filter bag 2 to be blocked by oil stains, affect the detection accuracy of the holes on the filter bag 2 subsequently, and then, the extrusion plate 3 and the extrusion block 4 and the first scraping ring 5 and the second scraping ring 6 repeatedly move up and down for multiple times, to ensure the cleaning of the dust and oil stains adhered to the surface of the filter bag 2.

[0042] Subsequently, after the surface of the filter bag 2 is cleaned of dust and oil, the extrusion plate 3 and the extrusion block 4 are returned to the initial position with the first and second scraping rings 5 and 6, so that the lower end of the first pneumatic telescopic rod 303 is inserted into the bottom plate 506 again, and the connection between the first pneumatic telescopic rod 303 and the bottom plate 506 is re-established. At this time, the extension end of the electric lock 505 is controlled to move downward, so that the bottom plate 506 is released from the lock of the electric lock 505. Then, the high-pressure air pump 301 is controlled to perform air suction, so that the first pneumatic telescopic rod 303 is retracted upward, thereby driving the bottom plate 506 to move upward, and further driving the filter bag 2 to contract, and driving the fixing ring 307 to move upward (the fixing ring 307 is initially used to enhance the structural strength of the filter bag 2, so as to ensure that the filter bag 2 can stably filter air). Thus, the filter bag 2 is gradually contracted to a stacked state. Meanwhile, the cover plate 402 is controlled to move downward by the driving member 401, and the downward movement of the cover plate 402 is stopped when the cover plate 402 is attached to the connecting plate 404. Then, after the bottom plate 506 moves upward and the filter bag 2 is contracted to the stacked state, the air compressor 201 is controlled to deliver a stream of compressed air to the air pipe 202, so that the compressed air enters the air pipe 203 along the air pipe 202, and then is blown to the inside of the filter bag 2 from the air pipe 203. Thus, the pressure inside the filter bag 2 is increased, and then is reduced by flowing out of the fiber holes on the filter bag 2, so that the filter bag 2 gradually returns to the original state. At this time, the pressure sensor 403 measures the rate of pressure reduction in the filter bag 2. If the pressure reduction rate in the filter bag 2 is too fast, holes will inevitably appear on the filter bag 2. The holes will allow dust that should be blocked to directly penetrate the filter bag and enter the purified air flow, thereby increasing the dust content of the exhaust gas and violating the environmental emission standard. Therefore, the filter bag 2 with holes cannot be used. Thus, after the filter bag 2 is damaged, the high-pressure air pump 301 is controlled to perform air blowing, so that the first pneumatic telescopic rod 303 is gradually extended and returns to the original state. At this time, the electric valve in the first pneumatic telescopic rod 303 located at the damaged filter bag 2 is closed, so that the air blown by the high-pressure air pump 301 cannot enter the first pneumatic telescopic rod 303, thereby keeping the first pneumatic telescopic rod 303 in a retracted state, and keeping the damaged filter bag 2 in the stacked state. Thus, the contact area between the damaged filter bag 2 and the polluted air flow is reduced, and the filtering effect of the damaged filter bag 2 on the polluted air flow is greatly reduced. Thus, the polluted air flow is filtered by the remaining intact filter bags 2, and the damaged filter bag 2 is prevented from continuing to filter the polluted air flow and pollute the purified air flow, thereby affecting the dust content in the purified air flow.

[0043] Subsequently, after the filter bag 2 is detected, the polluted air flow is sucked into the bag-type dust collector 1 again by controlling the air inlet mechanism, so that the filtering of the polluted air flow is continued. After the tunneling operation in the mine tunnel is completed, the staff opens the bag-type dust collector 1 to replace the damaged filter bag 2 in the bag-type dust collector 1.

[0044] Each filter bag 2 is provided in a funnel shape; when the dust on the filter bag 2 falls down, it is difficult to contact the surface of the filter bag 2, avoiding the dust falling down to easily re-adhere to the filter bag 2, causing the dust to re-clog the filter bag 2, affecting the filtration of the polluted air flow by the filter bag 2.

[0045] Each extrusion plate 3 is provided in a downward inclined shape; after the adjacent extrusion plate 3 moves to the inner wall of the filter bag 2, it is shown as a rounded table shape, so that the part of the filter bag 2 extruded by the extrusion plate 3 is inclined, when the first scraping ring 5 and the second scraping ring 6 scratch the filter bag 2, the angle between the first scraping ring 5 and the second scraping ring 6 and the scratched part of the filter bag 2 is reduced, the first scraping ring 5 and the second scraping ring 6 exert a diagonal force on the scratched part of the filter bag 2, thereby improving the cleaning effect of the first scraping ring 5 and the second scraping ring 6 on the dust on the surface of the filter bag 2. Figure 8 Each first scraping ring 5 is provided in a circular table shape; each second scraping ring 6 is provided in a circular table shape; when the first scraping ring 5 and the second scraping ring 6 scratch the outer surface of the filter bag 2, they exert a shoveling effect on the outer surface of the filter bag 2, further improving the cleaning effect of the first scraping ring 5 and the second scraping ring 6 on the outer surface of the filter bag 2.

[0046] Example 2

[0047] Based on example 1, as shown in

[0048] Figure 5 Figure 7 and Figure 9 It also includes a micro motor 601 and a guide plate 602; each first scraping ring 5 has a micro motor 601 fixed on the right side; each micro motor 601 output end has a guide plate 602 fixed.

[0049] Each guide plate 602 is provided as an arc plate with the middle part protruding upward.

[0050] When the polluted air flow enters the filter space 1002, the filter bag 2 that first contacts the polluted air flow bears a larger filtering pressure, so that each filter bag 2 in the bag dust collector 1 is affected by the polluted air flow unevenly, causing the probability of damage to the filter bag 2 that first contacts the polluted air flow to be larger, thereby making the service life of each filter bag 2 in the bag dust collector 1 not the same, therefore, during the process of filtering the polluted air flow by the filter bag 2, taking the front-to-back view as the reference, the micro motor 601 drives the guide plate 602 to rotate clockwise to Figure 7 ​​As shown in the state, since the guide plate 602 is arranged as an arc-shaped plate protruding upward in the middle, the guide plate 602 will guide part of the polluted air flow to flow to the left, thereby reducing the filtering pressure of the right filter bag 2, effectively reducing the excessive filtering pressure of the right filter bag 2, preventing the right filter bag 2 from being easily damaged, and affecting the service life of the right filter bag 2. Subsequently, when the pressure sensor 403 detects that the filter bag 2 is damaged, the guide plate 602 is driven by the micro motor 601 to rotate vertically downward, and the connecting frame 503, the first scraping ring 5 and the second scraping ring 6 are driven by the electric sliding block 502 to move upward, thereby driving the micro motor 601 and the guide plate 602 to move upward to stop when the second scraping ring 6 contacts the connecting plate 404. At this time, the micro motor 601 located at the stacked filter bag 2 is controlled to drive the guide plate 602 to rotate to the state as shown in the figure, thereby forming a protection space through the first scraping ring 5, the second scraping ring 6 and the bottom plate 506, and wrapping the stacked filter bag 2 through the protection space. At the same time, the polluted air flow is guided by the guide plate 602, thereby further reducing the contact area between the polluted air flow and the filter bag 2, making it difficult for the polluted air flow to pass through the stacked filter bag 2 for filtering, achieving further protection of the purified air flow, and improving the cleanliness of the purified air flow. Figure 9 As shown in the state, thereby forming a protection space through the first scraping ring 5, the second scraping ring 6 and the bottom plate 506, and wrapping the stacked filter bag 2 through the protection space. At the same time, the polluted air flow is guided by the guide plate 602, thereby further reducing the contact area between the polluted air flow and the filter bag 2, making it difficult for the polluted air flow to pass through the stacked filter bag 2 for filtering, achieving further protection of the purified air flow, and improving the cleanliness of the purified air flow.

[0051] The above has carried on the detailed introduction to the present application, the principle and the implementation mode of the present application are described in the text by applying specific examples; the above example is only used to help understanding the method and the core idea of the present application; at the same time, according to the idea of the present application, the specific implementation mode and the application range will have the change for the general technical personnel in the field, and the above description should not be understood as the limitation of the present application.

Claims

1. A mine roadway air purification equipment, comprising a bag filter (1); a plurality of filter bags (2) are arranged in the bag filter (1); a flow channel (1001) is arranged in the bag filter (1); a filter space (1002) is arranged in the bag filter (1); a subsidence space (1003) is arranged in the bag filter (1); a gas inlet pipe (101) is communicated with the right side of the bag filter (1); a gas inlet mechanism is connected to the other end of the gas inlet pipe (101); a gas outlet pipe (102) is communicated with the left side of the bag filter (1); a gas outlet mechanism is communicated with the other end of the gas outlet pipe (102); characterized in that: Ventilation assembly; the ventilation assembly is connected to the cloth bag dust collector (1) for ventilation detection of the filter bag (2); the auxiliary cleaning assembly is connected to the cloth bag dust collector (1) for assisting in cleaning the impurities on the surface of the filter bag (2); the detection assembly is connected in the cloth bag dust collector (1) for detecting whether there is a hole in the filter bag (2); a plurality of extrusion plates (3) are arranged on the auxiliary cleaning assembly for conveniently cleaning the surface of the filter bag (2); the extrusion plate (3) is located in the adjacent filter bag (2); one extrusion block (4) for protruding the impurities in the hole of the filter bag (2) is fixedly connected to one side of each extrusion plate (3) close to the filter bag (2); the connecting assembly is connected in the cloth bag dust collector (1); a plurality of first scraping rings (5) for cleaning the impurities on the surface of the filter bag (2) are connected to the connecting assembly; each first scraping ring (5) is located outside the adjacent filter bag (2); each first scraping ring (5) is connected with a second scraping ring (6) also for cleaning the impurities on the surface of the filter bag (2); a plurality of through holes (6001) are formed in each second scraping ring (6); The auxiliary cleaning assembly comprises a high-pressure gas pump (301); the high-pressure gas pump (301) is fixedly connected to the rear side of the cloth bag dust collector (1); a plurality of gas conveying pipes (302) are communicated with the output end of the high-pressure gas pump (301); each gas conveying pipe (302) penetrates the cloth bag dust collector (1); each gas conveying pipe (302) is located inside the adjacent ventilation pipe (202); a plurality of first pneumatic telescopic rods (303) are communicated with the lower side of each gas conveying pipe (302); each first pneumatic telescopic rod (303) is located inside the adjacent filter bag (2); each first pneumatic telescopic rod (303) penetrates the adjacent air pressure pipe (203), and each first pneumatic telescopic rod (303) does not contact the inner wall of the adjacent air pressure pipe (203); an electric valve is arranged in each first pneumatic telescopic rod (303); a connecting ring (304) is fixedly connected to the lower side of each first pneumatic telescopic rod (303); each connecting ring (304) is arranged in a hollow structure; a plurality of second pneumatic telescopic rods (305) arranged in a ring array are communicated and fixedly connected to each connecting ring (304); the telescopic end of each second pneumatic telescopic rod (305) is fixedly connected with the adjacent extrusion plate (3); a micro gas pump (306) is fixedly connected to the lower side of each connecting ring (304); a plurality of fixing rings (307) are fixedly connected in each filter bag (2); the diameters of the fixing rings (307) located in the same filter bag (2) gradually increase from bottom to top.

2. The mine roadway air purification device according to claim 1, characterized in that: The ventilation assembly comprises an air compressor (201); the air compressor (201) is fixedly connected to the front side of the cloth bag dust collector (1); a plurality of ventilation pipes (202) are communicated with the output end of the air compressor (201); each ventilation pipe (202) penetrates the cloth bag dust collector (1); a plurality of air pressure pipes (203) are communicated with the lower side of each ventilation pipe (202); each air pressure pipe (203) is located on the upper side of the adjacent filter bag (2).

3. The mine roadway air purification device according to claim 1, characterized in that: The detection assembly comprises driving members (401), a plurality of the driving members (401) are fixed to the inner top surface of the cloth bag dust collector (1), the retractable ends of all the driving members (401) are fixedly connected with a cover plate (402), the lower side of the cover plate (402) is fixedly connected with a plurality of pressure sensors (403), each of the pressure sensors (403) is located on the upper side of an adjacent filter bag (2), the cloth bag dust collector (1) is fixedly connected with a connecting plate (404), the upper end of each filter bag (2) penetrates through the connecting plate (404), and the upper end of each filter bag (2) is fixedly connected with the connecting plate (404).

4. The mine roadway air purification device according to claim 3, characterized in that: The connecting assembly comprises a power unit, the power unit is connected in the cloth bag dust collector (1), the power unit is connected with a connecting frame (503), the connecting frame (503) is driven by the power unit to move up and down, each connecting frame (503) is fixedly connected with an adjacent one, a plurality of fixed plates (504) are fixedly connected in the cloth bag dust collector (1), each fixed plate (504) is located on the lower side of the connecting frame (503), the lower side of each fixed plate (504) is fixedly connected with an electric lock (505), the lower side of each filter bag (2) is fixedly connected with a bottom plate (506), the retractable end of each electric lock (505) penetrates through an adjacent bottom plate (506), and the retractable end of each electric lock (505) is connected with an adjacent first pneumatic telescopic rod (303).

5. An air purification device for use in a mine roadway according to claim 4, characterised in that: Each filter bag (2) is provided in a funnel shape.

6. The mine roadway air purification device according to claim 1, characterized in that: Each extrusion plate (3) is provided in a downwardly inclined shape.

7. The mine roadway air purification device according to claim 1, characterized in that: Each first scraping ring (5) is provided in a circular truncated cone shape, and each second scraping ring (6) is provided in a circular truncated cone shape.

8. An air purification device for use in a mine roadway according to claim 7, characterised in that: The micro motors (601) are further arranged, each first scraping ring (5) is fixedly connected with a micro motor (601) on the right side, and the output end of each micro motor (601) is fixedly connected with a guide plate (602).

9. An air purification apparatus for use in a mine roadway according to claim 8, characterised in that: Each guide plate (602) is provided in an arc-shaped plate with the middle part protruding upward. Each guide plate (602) is provided in an arc-shaped plate with the middle part protruding upward.

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