CN115487634A - Mine ventilation equipment - Google Patents

Mine ventilation equipment Download PDF

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Publication number
CN115487634A
CN115487634A CN202211042008.5A CN202211042008A CN115487634A CN 115487634 A CN115487634 A CN 115487634A CN 202211042008 A CN202211042008 A CN 202211042008A CN 115487634 A CN115487634 A CN 115487634A
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CN
China
Prior art keywords
bin
plate
purifying
storehouse
square
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Granted
Application number
CN202211042008.5A
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Chinese (zh)
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CN115487634B (en
Inventor
衣宏大
朱士林
孙延坤
庄子游
刘晓倩
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Jinan Wolves Technology Co ltd
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Jinan Wolves Technology Co ltd
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Priority to CN202211042008.5A priority Critical patent/CN115487634B/en
Publication of CN115487634A publication Critical patent/CN115487634A/en
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Publication of CN115487634B publication Critical patent/CN115487634B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/44Auxiliary equipment or operation thereof controlling filtration
    • B01D46/446Auxiliary equipment or operation thereof controlling filtration by pressure measuring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66Regeneration of the filtering material or filter elements inside the filter
    • B01D46/68Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
    • B01D46/681Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/88Replacing filter elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D47/00Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The invention relates to the technical field of mine ventilation, in particular to mine ventilation equipment; comprises a purification mechanism, a water outlet, a first cleaning mechanism and a second cleaning mechanism; the invention solves the problems that the filter plate of the purification element of the mine ventilation equipment is difficult to disassemble and replace, and operators are easy to inhale harmful gas to cause harm to the health in the replacement process, and the filter plate is easy to replace manually, which consumes manpower, and the replacement of the filter plate is not timely, so that the content of toxic gas in the mine is easy to exceed standard to influence the health of workers, and part of gas is too high in concentration and easy to explode, thereby causing safety risk and the like in the use process of the existing mine ventilation equipment; the invention improves the safety and timeliness of the replacement of the filter plate of the mine ventilation equipment.

Description

Mine ventilation equipment
Technical Field
The invention relates to the technical field of mine ventilation, in particular to mine ventilation equipment.
Background
The mine ventilation equipment is used for conveying fresh air to the underground, diluting and discharging toxic and harmful gases and adjusting the required air quantity, temperature and humidity of the underground, so that the working condition is improved and the safe production is ensured.
However, the current mine ventilation equipment mainly has the following problems in the use process: 1. harmful gas and dust discharged from the interior of a mine are directly discharged and easily damage the environment, a purification element is usually required to be additionally arranged at the tail end of the equipment, a filter plate of the purification element of the existing mine ventilation equipment is not easy to disassemble and replace, and an operator easily inhales the harmful gas in the replacement process to cause damage to the health of the operator.
2. The manpower is consumed by replacing the filter plate manually, and the filter plate is not replaced timely, so that the toxic gas is slowly discharged, the toxic gas in the well can not be effectively discharged, the toxic gas content in the mine exceeds the standard, the health of workers is influenced, and the safety risk exists because part of the gas is too high in concentration and easy to explode.
Therefore, the safety and timeliness of the replacement of the filter plate of the mine ventilation equipment are improved; the invention provides a mine ventilation device.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme: a mine ventilation device comprises a purification mechanism, a water outlet, a first cleaning mechanism and a second cleaning mechanism; the inside of purifying mechanism is provided with clean mechanism No. one, and the left end of purifying mechanism is provided with clean mechanism No. two, and the below of clean mechanism No. two is provided with the delivery port that is linked together with purifying mechanism.
Purifying mechanism include purifying box, purification storehouse, operation storehouse, prepare the feed bin, air-supply line and play tuber pipe, the inner chamber middle part of purifying box is provided with the purification storehouse, the rear side of purification storehouse respectively is provided with the operation storehouse, the rear side of purification storehouse respectively is provided with and prepares the feed bin, operation storehouse upper portion is linked together with the upper portion of being equipped with the feed bin, the inner chamber upper portion of purifying box is provided with a clean mechanism, the lower part of purifying the storehouse is stored and is used for well and toxic gas's aqueous solution, the right-hand member intercommunication of purification storehouse has the air-supply line, and the air-supply line lower extreme is arranged in aqueous solution, the left end of purifying the storehouse is provided with out the tuber pipe, and it is linked together with the upper portion of purifying the storehouse to go out the tuber pipe, a side tip that the air-supply line is close to the purification storehouse is provided with No. two clean mechanisms.
A clean mechanism include the layer board No. one, no. two layer boards, the brush board, square filter, the drive unit, lifting unit and propelling movement unit, the up end of purifying box is provided with the drive unit, the externally mounted of drive unit has a protection casing, each sliding fit of inner wall symmetry installs a layer board that is connected with the drive unit around the operation storehouse upper portion, and a layer board is "U" shape structure, no. two layer boards are installed through the drive unit on the inner chamber upper portion of preparing material storehouse, no. two layer boards are located between two layer boards, and No. two layer boards and a layer board sliding fit, sliding fit installs the brush board in the operation storehouse, one side that the purifying storehouse was kept away from to the brush board is provided with the lifting unit, and lifting unit and brush board cooperation, be provided with the propelling movement unit with lifting unit complex in the storehouse of prepareeing material, no. two protection casings are installed to the lower terminal surface of purifying box, and propelling movement unit is located No. two protection casings, the up end of a layer board, the terminal surface of No. two layer boards, the middle part of purifying storehouse, the top of brush board and the propelling movement storehouse are provided with a square filter, the pressure spring is all seted up in the purifying storehouse, the pressure spring is installed between the purifying storehouse and the square filter board.
Preferably, the second cleaning mechanism comprises a square shell, a telescopic cylinder, a slide way, a brush disc, a baffle, a support plate, a circular filter plate and a linkage piece, wherein the square shell is installed on one side, close to the purifying bin, of the air outlet pipe, the telescopic cylinder is installed outside the square shell, the telescopic end of the telescopic cylinder is located in the square shell, the slide way is arranged between the telescopic end of the telescopic cylinder and the air outlet pipe, a cleaning section communicated with the slide way is arranged below the air outlet pipe in an inner cavity of the square shell, the brush disc is installed on the inner wall of the cleaning section in a rotating fit mode, a feeding section is arranged on one side, close to the telescopic cylinder, of the cleaning section, the baffle is arranged between the feeding section and the cleaning section, the baffle is in sliding fit with the square shell, the linkage piece is arranged between the baffle and the telescopic cylinder, the support plate is arranged on the upper portion of the feeding section, the support plate is in sliding fit with the square shell through a second pressure spring, the circular filter plate is arranged above the support plate, the air inlet pipe, the circular filter plate is arranged in the cleaning section and the feeding section, and the circular filter plate is detachably installed at one side end portion, close to the purifying bin, and the air inlet pipe.
Preferably, the lifting unit include reciprocal lead screw, cam, dull and stereotyped and lifting board, reciprocal lead screw is installed to operation storehouse normal running fit, and the lower part of reciprocal lead screw is provided with the cam, and sliding fit between cam and the brush board, and the going up of reciprocal lead screw cooperates there is the flat board, and dull and stereotyped and propelling movement unit cooperation, and the flat board is close to one side tip unidirectional rotation cooperation in evolution storehouse and installs the lifting board that is used for the square filter of lifting.
Preferably, the pushing unit comprises a supporting block, a pushing block, an extension spring, a first rope, a sliding plate, a pushing block and a second rope, the supporting block is installed in the material preparation bin in a sliding fit mode and is of an L-shaped structure, the pushing block is arranged below the horizontal section of the supporting block, a square filter plate is arranged between the pushing block and the bottom wall of the notch, the pushing block is connected with the vertical section of the supporting block through a spring column, the extension spring is installed between the end face, far away from the pushing block, of the supporting block and the inner wall of the material preparation bin, the first rope is installed on the vertical section of the supporting block and is in sliding fit with the pushing block, purify the lower terminal surface in storehouse and have a rolling wheel and No. two rolling wheels through clockwork spring normal running fit's mode coaxial arrangement, and a rolling wheel diameter is greater than No. two rolling wheel diameters, the leading wheel winding is walked around to a rope other end on a rolling wheel, reciprocal lead screw is kept away from the operation storehouse inner wall of purifying storehouse one side and is seted up the spout, and the upper portion indent of spout, sliding fit installs the slide in the spout, the slide is close to one side unidirectional rotation cooperation of reciprocal lead screw and installs the ejector pad of contradicting with the flat board, install compression spring between the up end of slide and the inner wall in operation storehouse, no. two ropes are installed to the lower terminal surface of slide, the other end of No. two ropes is walked around the guide post winding on No. two rolling wheels.
Preferably, the drive unit include axostylus axostyle, leading wheel, driving rope, striker plate and driving piece, an axostylus axostyle is respectively installed to the up end rear side of purifying box, the inside in operation storehouse and the inside in reserve feed bin, and the up end in reserve feed bin is provided with synchronous incorgruous pivoted driving piece, and two leading wheels are respectively installed through the bearing in the both ends of axostylus axostyle, around having the driving rope between a leading wheel of coplanar and the driving piece, and two sets of driving ropes of syntropy pivoted are connected with a layer board and No. two layer boards respectively, the striker plate is installed through round pin axle and the limited normal running fit of torsional spring to the inside roof in purifying box.
Preferably, the linkage piece comprises a trapezoid convex block, a T-shaped rod, a connecting plate, a T-shaped block, a driving rod and a circular truncated cone block, the trapezoid convex block is installed on a telescopic section of the telescopic cylinder, the T-shaped rod is installed inside one side, close to the telescopic cylinder, of the square shell in a sliding fit mode through a third pressure spring, the upper end of the T-shaped rod is abutted to the trapezoid convex block, the connecting plate is installed on the lower end face of the square shell through a guide rod and a fourth pressure spring, the connecting plate is in a sliding fit with the guide rod and the T-shaped rod, the upper end face of the connecting plate is connected with a baffle, the T-shaped block is installed on the lower inner wall of the feeding section in a sliding fit mode, a square groove communicated with the inside of the square shell is formed in the T-shaped rod, the driving rod is hinged to the lower portion of the T-shaped block, the other side of the driving rod is connected with the inner wall of the square groove through a pin shaft, the two circular discs are arranged on the T-shaped rod, the end portion, close to one side of the driving rod is located between the two circular discs, the two circular discs are abutted to the filtering plate, the two circular truncated cones are abutted to the filtering plate, and the right side of the supporting plate is arranged on the circular truncated cone block and in a sliding fit with the square shell.
Preferably, the end part of one side of the air inlet pipe, which is close to the purifying bin, is divided into two sections, the opposite surfaces of the two sections of air inlet pipes are provided with hole grooves, circular platform rings are arranged in the hole grooves in a sliding fit manner, a circular filter plate is arranged between the opposite surfaces of the two circular platform rings, a return spring and a telescopic pipe are arranged between the end surface of one side, which is far away from the two circular platform rings, and the inner wall of the hole groove, and the hole grooves are sealed by the telescopic pipe.
Preferably, the driving piece include section of thick bamboo post, pivot, no. two leading wheels, circular slot and straight-teeth gear, the section of thick bamboo post is installed through the supporting seat to the up end in operation storehouse, and the pivot is installed to section of thick bamboo post middle part normal running fit, and a No. two leading wheels are respectively installed at the both ends of section of thick bamboo post and the both ends of pivot, and the circular slot has been seted up at the both ends of section of thick bamboo post, and common meshing has the straight-teeth gear between the inner wall of circular slot and the circumference outer wall of section of thick bamboo post, and the straight-teeth gear is installed on the lateral wall of circular slot through normal running fit's mode, and the one end of pivot is the drive end.
The invention has the beneficial effects that:
1. according to the invention, the square filter plate and the circular filter plate are cleaned in time respectively by the first cleaning mechanism and the second cleaning mechanism to ensure smooth filtration of gas discharged from the well, so that damage to the health of workers caused by excessive toxic gas content in the well due to untimely blockage replacement is avoided, and meanwhile, the situation that the toxic gas sucked and discharged during manual replacement harms the health of operators is avoided by automatically replacing and cleaning the square filter plate and the circular filter plate.
2. The square filter plate of the first cleaning mechanism can be jacked up by gas to move upwards to squeeze the pressure sensor when being blocked, and the pressure sensor transmits information to enable the first cleaning mechanism and the second cleaning mechanism to operate to respectively replace and clean the square filter plate and the circular filter plate, so that the timeliness of filter plate replacement is ensured; the circular feeding replacement of the square filter plate is realized through the cooperation of the lifting unit, the driving unit and the pushing unit, and the replacement efficiency of the square filter plate is improved.
3. The second cleaning mechanism provided by the invention pushes and replaces the circular filter plate, so that the operation is convenient, the filtering effect is ensured, meanwhile, the cleaned circular filter plate is moved to the material conveying section by means of the rotation force of the brush disc for material supplement, and the pushed circular filter plate is cleaned and processed, so that the use of a driving source is reduced.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the main structure of the present invention.
Fig. 2 is a sectional view of the internal structure of the present invention.
Fig. 3 is a partial enlarged view of the invention at a in fig. 2.
Fig. 4 is a partial enlarged view of the invention at B in fig. 2.
Fig. 5 is a schematic structural view between the first pallet, the second pallet and the driving unit of the present invention.
Fig. 6 is a schematic view of the driving member of the present invention.
Fig. 7 is a schematic view of the structure among the column, the rotary shaft and the spur gear of the present invention.
Fig. 8 is a schematic structural view between the air outlet pipe and the circular filter plate of the present invention.
Fig. 9 is a front perspective cross-sectional view of the cleaning mechanism # two of the present invention.
FIG. 10 is a side view cross-sectional view of the second cleaning mechanism of the present invention.
In the figure: 1. a purification mechanism; 2. a water outlet; 3. a first cleaning mechanism; 4. a second cleaning mechanism; 10. a purification box; 11. a purifying bin; 12. an operation bin; 13. preparing a stock bin; 14. an air inlet pipe; 15. an air outlet pipe; 30. a first support plate; 31. a second supporting plate; 32. a brush plate; 33. a square filter plate; 5. a drive unit; 6. a lifting unit; 7. a pushing unit; 40. a square shell; 41. a telescopic cylinder; 42. a slideway; 43. brushing a disc; 44. a baffle plate; 45. a support plate; 46. a circular filter plate; 8. a linkage member; 60. a reciprocating screw rod; 61. a cam; 62. a flat plate; 63. lifting the plate; 70. a support block; 71. pushing the block; 72. an extension spring; 73. a first rope; 74. a slide plate; 75. pushing a block; 76. a second rope; 50. a shaft lever; 51. a first guide wheel; 52. a drive rope; 53. a striker plate; 80. a trapezoidal bump; 81. a T-shaped rod; 82. connecting plates; 83. a T-shaped block; 84. a drive rod; 85. a round table block; 9. a drive member; 130. a hole groove; 131. a circular truncated cone ring; 132. a return spring; 90. a cylindrical column; 91. a rotating shaft; 92. a second guide wheel; 93. a circular groove; 94. a straight gear.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. In this process, the widths of lines or the sizes of components in the drawings may be exaggerated for clarity and convenience of description.
In addition, the following terms are defined based on the functions of the present invention, and may be different depending on the intention of a user or an operator or a common practice. Therefore, these terms are defined based on the entire contents of the present specification.
Referring to fig. 1, a mine ventilation device comprises a purification mechanism 1, a water outlet 2, a first cleaning mechanism 3 and a second cleaning mechanism 4; the inside of purifying mechanism 1 is provided with clean mechanism 3 No. one, and the left end of purifying mechanism 1 is provided with clean mechanism 4 No. two, and the below of clean mechanism 4 No. two is provided with the delivery port 2 that is linked together with purifying mechanism 1.
Referring to fig. 1 and 2, purification mechanism 1 include purifying box 10, purifying bin 11, operation storehouse 12, feed preparation storehouse 13, air-supply line 14 and play tuber pipe 15, the inner chamber middle part of purifying box 10 is provided with purifying bin 11, purifying bin 11's rear side respectively is provided with operation storehouse 12, purifying bin 11's rear side respectively is provided with feed preparation storehouse 13, operation storehouse 12 upper portion is linked together with feed preparation storehouse 13's upper portion, purifying box 10's inner chamber upper portion is provided with No. one clean mechanism 3, purifying bin 11's lower part is stored and is used for neutralizing toxic gaseous aqueous solution, purifying bin 11's right-hand member intercommunication has air-supply line 14, and air-supply line 14 lower extreme is located aqueous solution, purifying bin 11's left end is provided with out tuber pipe 15, and go out tuber pipe 15 and purifying bin 11's upper portion and be linked together, air-supply line 14 is close to one side tip of purifying bin 11 and is provided with No. two clean mechanisms 4.
Referring to fig. 1 and 5, the first cleaning mechanism 3 includes a first support plate 30, a second support plate 31, a brush plate 32, a square filter plate 33, a driving unit 5, a lifting unit 6 and a pushing unit 7, the upper end surface of the purifying box 10 is provided with the driving unit 5, the outside of the driving unit 5 is provided with a first protective cover, a first support plate 30 connected with the driving unit 5 is installed on the front and rear inner walls of the upper portion of the operating cabin 12 in a symmetrical and sliding fit manner, the first support plate 30 is of a U-shaped structure, the upper portion of the inner cavity of the material preparing cabin 13 is provided with the second support plate 31 through the driving unit 5, the second support plate 31 is located between the two first support plates 30, the second support plate 31 is in sliding fit with the first support plate 30, the brush plate 32 is installed on the operating cabin 12 in a sliding fit manner, one side of the brush plate 32 far away from the purifying cabin 11 is provided with the lifting unit 6, the lifting unit 6 is matched with the brush plate 32, the pushing unit 7 matched with the lifting unit 6 is arranged in the material preparing cabin 13, the lower end surface of the purifying cabin 10 is provided with the second support plate, the inner wall of the cleaning cabin, the cleaning cabin is provided with a pressure spring, the inner wall of the cleaning cabin 11, the cleaning cabin is provided with the upper portion of the cleaning filter plate 11, the cleaning cabin 11, and the inner wall of the cleaning cabin 11, and the cleaning cabin 11, the cleaning cabin, and the cleaning cabin, the cleaning cabin 11, the cleaning cabin is provided with a pressure spring, and a pressure spring are arranged on the inner wall of the cleaning cabin 11, and a pressure spring arranged on the cleaning cabin 11.
During the operation, harmful gas and dust which are sucked out of a mine through an existing fan by an air inlet pipe 14 are introduced into an aqueous solution, the aqueous solution enables the harmful gas to be neutralized and purified, and part of dust is removed, meanwhile, an air outlet pipe 15 sucks out the gas in a purifying bin 11 through the existing fan to be filtered and discharged, a large amount of dust is accumulated on the lower portion of a square filter plate 33 after long-time filtering to block the square filter plate 33, the gas which is difficult to discharge can push the square filter plate 33 above the aqueous solution to move upwards while pressing a pressure sensor (not shown), the pressure sensor transmits information to enable a second cleaning mechanism 4, a driving unit 5, a lifting unit 6 and a pushing unit 7 to operate, the square filter plate 33 on the lower portion of an operating bin 12 moves upwards through the lifting unit 6, the square filter plate 33 to be cleaned in the purifying bin 12 is pushed by the square filter plate 33 on the lower portion of the material preparing bin 13 to move into the purifying bin 11 through a first pressure spring, and the square filter plate 33 on the upper portion of the square filter plate 12 is moved to the upper portion through operation of the driving unit 5 to be pushed to the lower portion of the material preparing bin 13 to be prepared for pushing the original lower portion of the material preparing bin 13.
Referring to fig. 2 and 3, the lifting unit 6 includes a reciprocating screw rod 60, a cam 61, a flat plate 62 and a lifting plate 63, the reciprocating screw rod 60 is installed in the working bin 12 in a rotationally-matched manner, the cam 61 is arranged on the lower portion of the reciprocating screw rod 60, the cam 61 is in sliding fit with the brush plate 32, the flat plate 62 is matched with the reciprocating screw rod 60, the flat plate 62 is matched with the pushing unit 7, and the lifting plate 63 used for lifting the square filter plate 33 is installed on the flat plate 62 in a manner of being close to one side end of the evolution bin in a unidirectional rotation fit manner.
During specific work, the square filter plate 33 in the purification bin 11 is blocked and is pushed by gas to extrude a pressure sensor (not shown in the figure), at the moment, the reciprocating screw rod 60 rotates under the drive of the existing motor, the flat plate 62 moves upwards along with the rotation of the reciprocating screw rod 60, meanwhile, the square filter plate 33 at the lower part of the work bin 12 moves upwards to the driving unit 5 through the lifting plate 63, meanwhile, the square filter plate 33 in the purification bin 11 moves to the upper part of the brush plate 32 of the work bin 12 through the pushing unit 7, when the flat plate 62 moves to the top end along with the rotation of the reciprocating screw rod 60, the square filter plate 33 moves upwards to the right position, the driving unit 5 moves to the lower part of the square filter plate 33 to support and fix the square filter plate, then the flat plate 62 moves downwards along with the rotation of the reciprocating screw rod 60, the cam 61 drives the brush plate 32 to swing to clean the square filter plate 33, then, the lifting plate 63 rotates with the upper end face of the cleaned square filter plate 33, and the lifting plate 63 collides with the rotation to reset and is matched with the square filter plate 33 to prepare for next lifting of the square filter plate 33.
Referring to fig. 2, 3 and 4, the pushing unit 7 includes a supporting block 70, a pushing block 71, an extension spring 72, a first rope 73, a sliding plate 74, a pushing block 75 and a second rope 76, the supporting block 70 is installed in the stock bin 13 in a sliding fit manner, the supporting block 70 is in an "L" shape, the pushing block 71 is arranged below a horizontal section of the supporting block 70, a square filtering plate 33 is arranged between the pushing block 71 and the bottom wall of the notch, the pushing block 71 is connected with a vertical section of the supporting block 70 through a spring column, the extension spring 72 is installed between an end surface of one side of the supporting block 70 far away from the pushing block 71 and the inner wall of the stock bin 13, the first rope 73 is installed on the vertical section of the supporting block 70, and the first rope 73 is in a sliding fit with the pushing block 71, the lower terminal surface of purification storehouse 11 has a rolling wheel and No. two rolling wheels through clockwork spring normal running fit's mode coaxial arrangement, and a rolling wheel diameter is greater than No. two rolling wheel diameters, the leading wheel winding is walked around to the rope 73 other end on a rolling wheel, reciprocal lead screw 60 is kept away from the 12 inner walls in operation storehouse of purification storehouse 11 one side and has been seted up the spout, and the upper portion indent of spout, sliding fit installs slide 74 in the spout, slide 74 is close to one side unidirectional rotation cooperation of reciprocal lead screw 60 and installs the ejector pad 75 of contradicting with dull and stereotyped 62, install compression spring between the up end of slide 74 and the inner wall of operation storehouse 12, no. two ropes 76 are installed to the lower terminal surface of slide 74, the other end of No. two ropes 76 is walked around the guide post winding on No. two rolling wheels.
During specific work, in the process that the square filter plate 33 at the lower part of the working bin 12 is lifted by the lifting plate 63, the flat plate 62 and the pushing block 75 are abutted to move upwards along the chute, at the moment, the compression spring is compressed, and meanwhile, the second rope 76 drives the second winding wheel to rotate, the second winding wheel drives the first winding wheel to increase the stroke to pull the first rope 73, so that the supporting block 70 moves towards the purifying bin 11, the square filter plate 33 to be cleaned in the purifying bin 11 is moved into the working bin 11 for cleaning through the square filter plate 33 on the pushing block 71, the pushing block 71 can firstly abut against the outer wall of the purifying bin 11 in the process that the supporting block 70 moves towards the purifying bin 11, the supporting block 70 pushes the square filter plate 33 along with the pulling compression spring column of the first rope 73 to move in place, at the moment, the sliding plate 74 moves towards the inner concave part of the chute, the sliding plate 74 is pushed away by the flat plate 62, so that the pushing block 75 does not abut against the flat plate 62, the supporting block 70 and the pushing block 71 are reset under the combined action of the compression spring, the clockwork spring and the lifting plate 72, and the lifting plate 63 continues to move to drive the square filter plate 33 to drive unit 5.
Referring to fig. 2 and 5, the driving unit 5 include axostylus axostyle 50, leading wheel 51, driving rope 52, striker plate 53 and driving piece 9, an axostylus axostyle 50 is respectively installed to the up end rear side of purifying box 10, the inside of operation storehouse 12 and the inside of preparing stock storehouse 13, the up end of preparing stock storehouse 13 is provided with synchronous incorgruous pivoted driving piece 9, two leading wheels 51 are respectively installed through the bearing in the both ends of axostylus axostyle 50, around having driving rope 52 between leading wheel 51 of coplanar and the driving piece 9, and two sets of driving rope 52 of syntropy pivoted are connected with a layer board 30 and No. two layer boards 31 respectively, the inside roof of purifying box 11 installs striker plate 53 through round pin axle and the limited running fit of torsional spring.
During specific work, the driving part 9 operates to drive different driving ropes 52 to synchronously rotate in different directions, so that the first support plate 30 and the second support plate 31 move in different directions to separate the square filter plate 33 for material taking and feeding, the efficiency of replacing the square filter plate 33 is ensured, in the upward feeding process of the lifting unit 6, the first support plate 30 drives the square filter plate 33 at the upper end to move towards the material preparation bin 13 towards the front side, meanwhile, the second support plate 31 moves towards the working bin 12, the square filter plate 33 at the upper end of the second support plate 31 is abutted against the material baffle 53, the second support plate 31 moves out, the square filter plate 33 falls onto the pushing unit 7, the square filter plate 33 on the first support plate 30 pushes the material baffle 53 to rotate, the first support plate 30 and the square filter plate 33 move to the upper side of the pushing unit 7, and the second support plate 31 moves to the lower end of the square filter plate 33 which moves upwards for feeding by the lifting unit 6 to lift the square filter plate 33.
Referring to fig. 2, fig. 6 and fig. 7, driving piece 9 include a cylinder 90, a rotating shaft 91, no. two guide wheels 92, a circular groove 93 and a spur gear 94, cylinder 90 is installed through the supporting seat in the up end of operation storehouse 12, rotating shaft 91 is installed in cylinder 90 middle part normal running fit, no. two guide wheels 92 are respectively installed at the both ends of cylinder 90 and the both ends of rotating shaft 91, circular groove 93 has been seted up at the both ends of cylinder 90, common meshing has spur gear 94 between the inner wall of circular groove 93 and the circumference outer wall of cylinder 90, and spur gear 94 installs on the lateral wall of circular groove 93 through normal running fit's mode, the one end of rotating shaft 91 is the drive end.
During specific work, the existing motor drives the rotating shaft 91 to rotate, the cylinder 90 rotates reversely through the rotation of the meshed spur gear 94, so that the second guide wheel 92 on the cylinder 90 and the second guide wheel 92 on the rotating shaft 91 synchronously rotate in different directions, and the first supporting plate 30 and the second supporting plate 31 are separated to continuously fetch and deliver the square filtering plate 33.
Referring to fig. 1 and 8, the end portion of one side of the air inlet pipe 14 close to the purifying chamber 11 is two sections, the opposite surfaces of the two sections of air inlet pipe 14 are both provided with a hole slot 130, a circular platform ring 131 is installed in the hole slot 130 in a sliding fit manner, a circular filter plate 46 is arranged between the opposite surfaces of the two circular platform rings 131, a return spring 132 and a telescopic pipe are installed between the end surface of one side of the two circular platform rings 131 far away from each other and the inner wall of the hole slot 130, and the telescopic pipe seals the hole slot 130.
Referring to fig. 1 and 9, the second cleaning mechanism 4 includes a square shell 40, a telescopic cylinder 41, a slide rail 42, a brush disc 43, a baffle 44, a support plate 45, a circular filter plate 46 and a linkage member 8, the square shell 40 is installed on one side of the air outlet pipe 15 close to the purifying cabin 11, the telescopic cylinder 41 is installed outside the square shell 40, the telescopic end of the telescopic cylinder 41 is located in the square shell 40, the slide rail 42 is arranged between the telescopic end of the telescopic cylinder 41 and the air outlet pipe 15, a cleaning section communicated with the slide rail 42 is arranged below the air outlet pipe 15 in the inner cavity of the square shell 40, the brush disc 43 is installed on the inner wall of the cleaning section in a rotating fit manner, a feeding section is arranged on one side of the cleaning section close to the telescopic cylinder 41, the baffle 44 is arranged between the feeding section and the cleaning section, the baffle 44 is in sliding fit with the square shell 40, the linkage member 8 is arranged between the baffle 44 and the telescopic cylinder 41, the support plate 45 is arranged on the upper portion of the feeding section, the support plate 45 is in sliding fit with the square shell 40 through a second compression spring, the upper portion of the support plate 45, the inside of the air inlet pipe 14, the cleaning section and the circular filter plate 46 are arranged on one side of the purifying cabin 11 close to the purifying cabin 14.
When the cleaning mechanism 4 works specifically, the pressure sensor is extruded through the square filter plate 33 to operate, the telescopic end of the telescopic cylinder 41 stretches out to push the circular filter plate 46 to move towards the air outlet pipe 15, the circular filter plate 46 pushed out of the air outlet pipe 15 is pushed out to replace the pushed circular filter plate 46, the circular filter plate 46 drops into the cleaning section and rolls to the position of the brush disc 43, the original circular filter plate 46 in the position of the brush disc 43 moves to the feeding section through the rotation of the brush disc 43, the circular filter plate 46 is pushed into the slide way 42 through the cooperation of the telescopic cylinder 41 and the linkage piece 8, the circular filter plate 46 moves towards the slide way 42, the extrusion support plate 45 and the second pressure spring contract, the support plate 45 resets under the action of the second pressure spring after the circular filter plate 46 moves to the position to support the circular filter plate 46, when the telescopic section of the circular filter plate 46 on the support plate 45 is retracted in the telescopic cylinder 41, the circular filter plate 46 can be pushed to the telescopic end position of the telescopic cylinder 41 by the linkage piece 8, and preparation is made for replacing the circular filter plate 46 next time.
Referring to fig. 9 and 10, the linkage member 8 includes a trapezoidal projection 80, a T-shaped rod 81, a connecting plate 82, a T-shaped block 83, a driving rod 84 and a circular truncated cone block 85, the trapezoidal projection 80 is installed at a telescopic section of the telescopic cylinder 41, the T-shaped rod 81 is installed inside one side of the square shell 40 close to the telescopic cylinder 41 through a third compression spring in a sliding fit manner, the upper end of the T-shaped rod 81 abuts against the trapezoidal projection 80, the connecting plate 82 is installed on the lower end face of the square shell 40 through a guide rod and a fourth compression spring, the connecting plate 82 is in a sliding fit with the guide rod and the T-shaped rod 81, the upper end face of the connecting plate 82 is connected with the baffle 44, the T-shaped block 83 is installed on the inner wall of the lower portion of the feeding section in a sliding fit manner, a square groove communicated with the inside of the square shell 40 is formed at the position of the T-shaped rod 81, the driving rod 84 is hinged to the lower portion of the driving rod 84, the other side of the driving rod 84 is connected with the inner wall of the square groove through a pin shaft, two circular disc are arranged on the T-shaped rod 81, the driving rod 84, the end portion of the driving rod 84 is arranged between the two disc plates abutting against the two disc plates, the circular truncated cone block 84 is arranged on the right side of the supporting plate 45, and the circular truncated cone block 85 is arranged on the square shell 40 in a sliding fit manner.
During specific work, in the process that the telescopic end of the telescopic cylinder 41 extends out to move towards the direction of the air outlet pipe 15, the T-shaped rod 81 is extruded to move downwards through the trapezoid bump 80, the T-shaped rod 81 releases extrusion on the baffle 44 until the compressed fourth pressure spring is reset, the baffle 44 is pulled downwards at the same time, the T-shaped rod 81 continues to move downwards to push one end of the driving rod 84 to rotate and move downwards, the other end of the driving rod 84 synchronously rotates to push the T-shaped block 83 to move upwards on the inner wall of the feeding section, the circular filter plate 46 on the T-shaped block 83 is pushed into the slideway 42, the circular filter plate 46 firstly extrudes the circular filter block 85 and moves with the spring to contract in the process of moving towards the slideway 42, after the circular filter plate 46 moves to the position, the telescopic end of the telescopic cylinder 41 retracts, the T-shaped rod 81 moves upwards under the action of the third pressure spring to reset, at the moment, the T-shaped rod 81 firstly pushes the driving rod 84 to rotate to drive the T-shaped block 83 to reset, the brush disc 43 rotates to push the cleaned circular filter plate 46 towards the T-shaped block 83, the telescopic cylinder 81 continuously to push the connecting plate 82 upwards to compress the connecting plate 82, and simultaneously push the circular filter plate 44 to move towards the end of the front end of the telescopic cylinder 41 to stop the circular filter plate 46 moving.
When the ventilation device is used for ventilating a mine, along with long-time use of the filter plates, the blocked gas of the square filter plate 33 is not easy to discharge, so that the gas sucked out of the mine can push the square filter plate 33 to move upwards to extrude the pressure sensor, and the pressure sensor transmits information to enable the first cleaning mechanism 3 and the second cleaning mechanism 4 to respectively replace the square filter plate 33 and the circular filter plate 46 and clean the square filter plate 33 and the circular filter plate 46 which are replaced, so that the square filter plate 33 and the circular filter plate 46 can be periodically recycled.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A mine ventilation device comprises a purification mechanism (1), a water outlet (2), a first cleaning mechanism (3) and a second cleaning mechanism (4); the method is characterized in that: a first cleaning mechanism (3) is arranged inside the purifying mechanism (1), a second cleaning mechanism (4) is arranged at the left end of the purifying mechanism (1), and a water outlet (2) communicated with the purifying mechanism (1) is arranged below the second cleaning mechanism (4); wherein:
the purification mechanism (1) comprises a purification box (10), a purification bin (11), an operation bin (12), a material preparation bin (13), an air inlet pipe (14) and an air outlet pipe (15), wherein the purification bin (11) is arranged in the middle of an inner cavity of the purification box (10), the operation bin (12) is arranged on each rear side of the purification bin (11), the material preparation bin (13) is arranged on each rear side of the purification bin (11), the upper part of the operation bin (12) is communicated with the upper part of the material preparation bin (13), a first cleaning mechanism (3) is arranged on the upper part of the inner cavity of the purification box (10), an aqueous solution for neutralizing toxic gases is stored in the lower part of the purification bin (11), the right end of the purification bin (11) is communicated with the air inlet pipe (14), the lower end of the air inlet pipe (14) is positioned in the aqueous solution, the left end of the purification bin (11) is provided with the air outlet pipe (15), the air outlet pipe (15) is communicated with the upper part of the purification bin (11), and a second cleaning mechanism (4) is arranged at one side end part, which is close to the purification bin (11), of the air inlet pipe (14);
the first cleaning mechanism (3) comprises a first supporting plate (30), a second supporting plate (31), a brush plate (32), a square filter plate (33), a driving unit (5), a lifting unit (6) and a pushing unit (7), the upper end face of the purifying box (10) is provided with the driving unit (5), a first protective cover is installed outside the driving unit (5), a first supporting plate (30) connected with the driving unit (5) is installed on the front inner wall and the rear inner wall of the upper portion of the operation bin (12) in a symmetrical sliding fit mode, the first supporting plate (30) is of a U-shaped structure, the second supporting plate (31) is installed on the upper portion of an inner cavity of the material preparation bin (13) through the driving unit (5), the second supporting plate (31) is located between the first supporting plates (30), the second supporting plate (31) is in sliding fit with the first supporting plate (30), the brush plate (32) is installed in the operation bin (12) in a sliding fit mode, the lifting unit (6) is arranged on one side, which the purifying bin (11) is far away from the brush plate (6), the lower end of the second supporting plate (32) is located in the pushing unit (7), and the protecting cover (7) are arranged in the pushing unit (7), the up end of a layer board (30), the terminal surface of No. two layer boards (31), the middle part of purifying storehouse (11), respectively be provided with a square filter (33) on the top of brush board (32) and propelling movement unit (7), set up between the inner wall of purifying box (10) and purifying storehouse (11) and operation storehouse (12) and feed preparation storehouse (13) and all have and be used for the gliding notch of square filter (33), install a pressure spring between square filter (33) at purifying storehouse (11) middle part and purifying storehouse (11) inner wall, square filter (33) upper portion at purifying storehouse (11) middle part is provided with pressure sensor.
2. The mine ventilation apparatus of claim 1, wherein: the second cleaning mechanism (4) comprises a square shell (40), a telescopic cylinder (41), a slide way (42), a brush disc (43), a baffle (44), a support plate (45), a circular filter plate (46) and a linkage piece (8), wherein the square shell (40) is installed on one side of the air outlet pipe (15) close to the purifying bin (11), the telescopic cylinder (41) is installed outside the square shell (40), the telescopic end of the telescopic cylinder (41) is positioned in the square shell (40), the slide way (42) is arranged between the telescopic end of the telescopic cylinder (41) and the air outlet pipe (15), a cleaning section communicated with the slide way (42) is arranged below the air outlet pipe (15) in the inner cavity of the square shell (40), the brush disc (43) is installed on the inner wall of the cleaning section in a rotating fit manner, a material conveying section is arranged on one side of the cleaning section close to the telescopic cylinder (41), the baffle (44) is arranged between the feeding section and the cleaning section, the baffle (44) is arranged between the baffle (44) and the square shell (40) in a sliding fit manner, the linkage piece (8) is arranged between the baffle (44) and the telescopic cylinder (41), the support plate (45) is arranged above the support plate (45), and a pressure spring (14) are arranged in the inner side of the square shell (40), and the circular filter plate (46) inside the air inlet pipe (14) is detachably arranged at the end part of one side of the air inlet pipe (14) close to the purifying bin (11).
3. The mine ventilation apparatus of claim 1, wherein: lifting unit (6) including reciprocal lead screw (60), cam (61), flat board (62) and lifting board (63), reciprocal lead screw (60) is installed to operation storehouse (12) internal rotation cooperation, the lower part of reciprocal lead screw (60) is provided with cam (61), and sliding fit between cam (61) and brush board (32), the last cooperation of reciprocal lead screw (60) has flat board (62), and flat board (62) and propelling movement unit (7) cooperation, flat board (62) are close to one side tip one-way normal running fit in evolution storehouse and install lifting board (63) that are used for lifting square filter (33).
4. A mine ventilation device as claimed in claim 3, wherein: the pushing unit (7) comprises a supporting block (70), a pushing block (71), an extension spring (72), a first rope (73), a sliding plate (74), a pushing block (75) and a second rope (76), the supporting block (70) is installed in the material preparation bin (13) in a sliding fit mode, the supporting block (70) is of an L-shaped structure, the pushing block (71) is arranged below the horizontal section of the supporting block (70), a square filtering plate (33) is arranged between the pushing block (71) and the bottom wall of a notch, the pushing block (71) is connected with the vertical section of the supporting block (70) through a spring column, the extension spring (72) is installed between the end face of one side, far away from the pushing block (71), of the supporting block (70) and the inner wall of the material preparation bin (13), the first rope (73) is installed in the vertical section of the supporting block (70), the first rope (73) is in a sliding fit with the pushing block (71), the lower end face of the purifying bin (11) is coaxially installed with a first winding wheel and a second winding wheel through a spiral spring rotation fit mode, the diameter of the first rope winding wheel is larger than that of the second rope, the inner wall of the first sliding groove (74) is installed on one side of the purifying bin, and the inner wall of the inner groove (12) is installed on which is far away from the reciprocating chute, and the inner chute (12) which is installed in the reciprocating chute, one side unidirectional rotation cooperation that slide (74) is close to reciprocal lead screw (60) is installed and is contradicted ejector pad (75) with dull and stereotyped (62), installs compression spring between the up end of slide (74) and the inner wall of operation storehouse (12), and No. two ropes (76) are installed to the lower terminal surface of slide (74), and the other end of No. two ropes (76) is walked around the guide post and is twined on No. two take-up pulleys.
5. The mine ventilation apparatus of claim 1, wherein: drive unit (5) including axostylus axostyle (50), leading wheel (51), drive rope (52), striker plate (53) and driving piece (9), one axostylus axostyle (50) is respectively installed to the up end rear side of purifying box (10), the inside of operation storehouse (12) and the inside of preparing stock storehouse (13), the up end of preparing stock storehouse (13) is provided with synchronous incorgruous pivoted driving piece (9), two leading wheels (51) are respectively installed through the bearing at the both ends of axostylus axostyle (50), around having drive rope (52) between leading wheel (51) of coplanar and driving piece (9), and two sets of drive rope (52) of syntropy pivoted are connected with a layer board (30) and No. two layer boards (31) respectively, the inside roof of purifying box (11) installs striker plate (53) through round pin axle and the limited normal running fit of torsional spring.
6. The mine ventilation apparatus of claim 2, wherein: the linkage piece (8) comprises a trapezoidal convex block (80), a T-shaped rod (81), a connecting plate (82), a T-shaped block (83), a driving rod (84) and a circular truncated cone block (85), the trapezoidal convex block (80) is installed at the telescopic section of the telescopic cylinder (41), the T-shaped rod (81) is installed inside one side, close to the telescopic cylinder (41), of the square shell (40) through sliding fit of a third pressure spring, the upper end of the T-shaped rod (81) is abutted against the trapezoidal convex block (80), the connecting plate (82) is installed on the lower end face of the square shell (40) through a guide rod and a fourth pressure spring, the connecting plate (82) is slidably fitted with the guide rod and the T-shaped rod (81), the upper end face of the connecting plate (82) is connected with a baffle (44), the T-shaped block (83) is installed on the sliding fit of the inner wall of the lower portion of the feeding section, a square groove communicated with the inside of the square shell (40) is formed in the T-shaped rod (81), the lower portion of the T-shaped rod (83) is hinged with an abutting against block (84), the other side of the T-shaped rod (84) is connected with the inner wall of the square groove through a pin, two circular disc (81), two driving rods (45) are arranged on the end portions of the two circular disc (81) and are arranged on the two circular disc (45) and close to the two round disc filter plates (81), and the round platform block (85) is in sliding fit with the square shell (40) through a spring.
7. The mine ventilation apparatus of claim 1, wherein: the air inlet pipe (14) be two sections near one side tip of purifying storehouse (11), hole groove (130) are all seted up to the opposite face of two sections air inlet pipe (14), sliding fit installs circular platform ring (131) in hole groove (130), be provided with circular filter (46) between the opposite face of two circular platform rings (131), install reset spring (132) and flexible pipe between the inner wall of a side end face that two circular platform rings (131) kept away from each other and hole groove (130), and flexible pipe is sealed hole groove (130).
8. A mine ventilation device as claimed in claim 5, wherein: driving piece (9) including section of thick bamboo post (90), pivot (91), no. two leading wheel (92), circular slot (93) and straight-teeth gear (94), section of thick bamboo post (90) are installed through the supporting seat to the up end in operation storehouse (12), pivot (91) are installed to section of thick bamboo post (90) middle part normal running fit, one No. two leading wheel (92) are respectively installed at the both ends of section of thick bamboo post (90) and the both ends of pivot (91), circular slot (93) have been seted up at the both ends of section of thick bamboo post (90), common meshing has straight-teeth gear (94) between the inner wall of circular slot (93) and the circumference outer wall of section of thick bamboo post (90), and straight-teeth gear (94) are installed on the lateral wall of circular slot (93) through normal running fit's mode, the one end of pivot (91) is the drive end.
CN202211042008.5A 2022-08-29 2022-08-29 mine ventilation equipment Active CN115487634B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006223958A (en) * 2005-02-16 2006-08-31 Nec Corp Filter unit and communication device
US20110277441A1 (en) * 2010-05-11 2011-11-17 Gordon Timothy Ayshford Method and apparatus for an air filter cartridge replacement assembly
CN111980781A (en) * 2020-09-21 2020-11-24 海宁市映通汽车用品有限公司 Automobile exhaust purification device
CN114082258A (en) * 2021-07-01 2022-02-25 陈永刚 Weld cigarette dust collecting equipment
CN216653803U (en) * 2021-12-01 2022-06-03 河北航天环境工程有限公司 Lime kiln gas cleaning device
CN217057738U (en) * 2021-12-30 2022-07-26 厉建海 New trend filter equipment that warm engineering of leading to was used
CN114922678A (en) * 2022-05-17 2022-08-19 南京林业大学 Tunnel environment air purification device
CN114941882A (en) * 2022-06-23 2022-08-26 深圳市黄记建筑工程有限公司 Air conditioning device for building floor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006223958A (en) * 2005-02-16 2006-08-31 Nec Corp Filter unit and communication device
US20110277441A1 (en) * 2010-05-11 2011-11-17 Gordon Timothy Ayshford Method and apparatus for an air filter cartridge replacement assembly
CN111980781A (en) * 2020-09-21 2020-11-24 海宁市映通汽车用品有限公司 Automobile exhaust purification device
CN114082258A (en) * 2021-07-01 2022-02-25 陈永刚 Weld cigarette dust collecting equipment
CN216653803U (en) * 2021-12-01 2022-06-03 河北航天环境工程有限公司 Lime kiln gas cleaning device
CN217057738U (en) * 2021-12-30 2022-07-26 厉建海 New trend filter equipment that warm engineering of leading to was used
CN114922678A (en) * 2022-05-17 2022-08-19 南京林业大学 Tunnel environment air purification device
CN114941882A (en) * 2022-06-23 2022-08-26 深圳市黄记建筑工程有限公司 Air conditioning device for building floor

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