CN113318524A - Smoke and dust exhaust gas filter equipment - Google Patents

Smoke and dust exhaust gas filter equipment Download PDF

Info

Publication number
CN113318524A
CN113318524A CN202110535966.5A CN202110535966A CN113318524A CN 113318524 A CN113318524 A CN 113318524A CN 202110535966 A CN202110535966 A CN 202110535966A CN 113318524 A CN113318524 A CN 113318524A
Authority
CN
China
Prior art keywords
ball
fixed connection
elastic
magnetic
magnetism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110535966.5A
Other languages
Chinese (zh)
Inventor
林师俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202110535966.5A priority Critical patent/CN113318524A/en
Publication of CN113318524A publication Critical patent/CN113318524A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • B01D46/74Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element
    • B01D46/76Regeneration of the filtering material or filter elements inside the filter by forces created by movement of the filter element involving vibrations
    • 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
    • B01D46/56Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B01D46/64Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially

Landscapes

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

Abstract

The invention relates to the technical field of filtering devices, and discloses a smoke and waste gas filtering device which comprises a filtering box, a box door, a waste gas channel, a chimney, a filtering net and a waste gas filtering sheet, wherein a vibration mechanism is arranged in the filtering box, the vibration mechanism comprises a motor base, a motor, a rotating rod, a rotating disc, an impact blade and a negative pressure fan, a support, an arc-shaped elastic plate, a first elastic sheet, an arc-shaped support, a squeezing plate and an elastic ball are arranged in a telescopic groove of the rotating disc, a magnetic resistance ball is fixedly connected in the impact blade, an elastic rope, a magnetic ball, a magnetic resistance plate, a first air bag, a magnetic suction sliding block and a magnetic suction seat are arranged in the magnetic resistance ball, so that smoke adhered to the surface of the filtering net falls off, the period of the filtering net needing to be cleaned is prolonged, the labor force of operators is reduced, and the passing efficiency of the filtering net can be improved through the vibration generated by impact, and the suction is generated by the negative pressure fan, so that the working efficiency of the device is obviously improved.

Description

Smoke and dust exhaust gas filter equipment
Technical Field
The invention relates to the technical field of filtering devices, in particular to a smoke and waste gas filtering device.
Background
The smoke waste gas is harmful substances discharged in catering kitchens and industrial production processes, and the main components of the smoke waste gas generally comprise grease, various organic and inorganic harmful gases and particulate matters. The smoke and waste gas discharged into the atmosphere not only pollutes the environment, but also has great harm to human bodies, and after the smoke and waste gas is inhaled by the human bodies, the smoke and waste gas can cause irreversible damage to the human bodies to cause acute poisoning, which is manifested by cough, pharyngalgia, chest distress, asthma, headache, eye stabbing pain and the like, and serious people can die. The most common is chronic poisoning, which causes irritation to respiratory mucosa to cause chronic bronchitis and the like. Therefore, if not treated in time, the smoke is destroyed not only in blue days, but also seriously threatens the health and even life of people.
At present, current smoke and dust exhaust gas filter equipment work efficiency is general to smoke and dust adhesion is on the filter screen after using for a long time, causes the circulation of air not smooth, and the directness leads to filter equipment's work efficiency low, for solving this problem, needs the manual work to clear up the filter screen, has increased labour's consumption.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a smoke and waste gas filtering device to solve the problems in the background technology.
(II) technical scheme
In order to achieve the purpose of cleaning the filter screen, the invention provides the following technical scheme: a smoke and waste gas filtering device comprises a filtering box, a box door, a waste gas channel, a chimney, a filter screen and a waste gas filter sheet, wherein the box door is hinged to the front side of the filtering box;
the inside vibrations mechanism that is provided with of rose box, vibrations mechanism includes motor base, motor, bull stick, carousel, striking leaf and negative-pressure air fan, motor base fixed connection is in the side of rose box, motor fixed connection is at motor base's top, bull stick fixed connection is in the rotation end of motor, and the other end of bull stick passes the side of rose box and extends to the inside of rose box, carousel fixed connection is at the other end of bull stick, striking leaf fixed connection is in the side of carousel, negative-pressure air fan fixed connection is at the inner wall of chimney.
Preferably, flexible groove is seted up on the carousel surface, be provided with support, arc diving board, first shell fragment, arc support, stripper plate, elastic ball in the flexible inslot of carousel, support fixed connection is in the bottom of striking leaf, arc diving board fixed connection is in the bottom of support, first shell fragment fixed connection is in the bottom of arc diving board, arc support fixed connection is in the side of first shell fragment, stripper plate fixed connection is at the other end of arc support, the elastic ball sets up between first shell fragment, arc diving board and stripper plate.
Preferably, the inside fixedly connected with of striking leaf hinders the magnetism ball, hinder inside striking groove and the sliding tray of seting up of magnetism ball, hinder inside elastic rope, the magnetism ball that is provided with of magnetism ball, hinder magnetic sheet, first gasbag, magnetism inhale the slider and the magnetism seat of inhaling, the inner wall in the striking groove of magnetism ball is hindered to elastic rope fixed connection, magnetic ball fixed connection is at the other end of elasticity rope, hinder magnetic sheet sliding connection in the sliding tray, first gasbag sets up in the sliding tray, magnetism inhales the slider and sliding connection in the sliding tray, and magnetism inhales slider and first gasbag contact, magnetism seat fixed connection is in the bottom of sliding tray.
Preferably, the surface of the impact blade is provided with a buffer slot, the surface of the impact blade is provided with a second air bag, a buffer sheet and a second elastic sheet, the second air bag is arranged in the buffer slot, the buffer sheet is slidably connected in the buffer slot, the second elastic sheet is fixedly connected to the inner wall of the buffer slot, and the second elastic sheet is in contact with the buffer sheet.
Preferably, the other end of the first elastic sheet is fixedly connected with the inner wall of the telescopic groove.
Preferably, the first air bag is in contact with the magnetic resistance plate.
Preferably, the cushion sheet is in contact with the second bladder.
Compared with the prior art, the invention provides a smoke and waste gas filtering device which has the following beneficial effects:
1. according to the invention, the impact blade is driven to rotate by the motor through the arranged vibration mechanism, so that the filter screen is impacted, the filter screen is vibrated, smoke dust adhered to the surface of the filter screen is enabled to fall off, the period of the filter screen needing to be cleaned is prolonged, the labor force of operators is reduced, the passing efficiency of the filter screen can be improved through the vibration generated by the impact, and the suction force is generated by the negative pressure fan, so that the working efficiency of the device is obviously improved.
2. According to the invention, the arranged magnetic resistance ball drives the magnetic resistance plate to slide through the vibration of the impact blade, so that the magnetic ball impacts the inner wall of the impact groove, the impact blade vibrates secondarily, the vibration effect of the impact blade is improved, and the cleaning effect of the filter screen is better.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic side cross-sectional view of a structural turntable of the present invention;
FIG. 4 is an enlarged schematic view of A in FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view of a magnetoresistive ball according to the present invention;
FIG. 6 is a schematic cross-sectional view of a second bladder of the present invention construction.
In the figure: 1 filter box, 2 box doors, 3 waste gas channels, 4 chimneys, 5 filter screens, 6 waste gas filter sheets, 7 vibration mechanisms, 71 motor bases, 72 motors, 73 rotating rods, 74 rotating discs, 75 impact blades, 76 negative pressure fans, 741 brackets, 742 arc elastic plates, 743 first elastic sheets, 744 arc brackets, 745 extrusion plates, 746 elastic balls, 751 magnetic-resistance balls, 752 elastic ropes, 753 magnetic balls, 754 magnetic-resistance plates, 755 first air bags, 756 magnetic-attraction sliding blocks, 757 magnetic-attraction seats, a1 second air bags, a2 buffer sheets and a3 second elastic sheets.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-6, the present invention provides a technical solution: a smoke and waste gas filtering device comprises a filtering box 1, a box door 2, a waste gas channel 3, a chimney 4, a filter screen 5 and a waste gas filter sheet 6, wherein the box door 2 is hinged to the front of the filtering box 1, the waste gas channel 3 is fixedly connected to the side surface of the filtering box 1, the chimney 4 is fixedly connected to the top of the filtering box 1, the filter screen 5 is fixedly connected to the inner wall of the filtering box 1, and the waste gas filter sheet 6 is fixedly connected to the inner wall of the filtering box 1;
the filter box 1 is internally provided with a vibration mechanism 7, the vibration mechanism 7 comprises a motor base 71, a motor 72, a rotating rod 73, a rotating disc 74, an impact blade 75 and a negative pressure fan 76, the motor base 71 is fixedly connected to the side surface of the filter box 1, the motor 72 is fixedly connected to the top of the motor base 71, the rotating rod 73 is fixedly connected to the rotating end of the motor 72, the other end of the rotating rod 73 penetrates through the side surface of the filter box 1 and extends to the inside of the filter box 1, the rotating disc 74 is fixedly connected to the other end of the rotating rod 73, the impact blade 75 is fixedly connected to the side surface of the rotating disc 74, the negative pressure fan 76 is fixedly connected to the inner wall of the chimney 4, the impact blade 75 is driven to rotate by the motor 72 through the arranged vibration mechanism 7, so as to impact the filter screen 5, so that the filter screen vibrates, the smoke and dust adhered to the surface of the filter screen 5 falls off, and the period of the filter screen 5 needing to be cleaned is prolonged, the labor force of operators is reduced, the passing efficiency of the filter screen 5 can be improved through the vibration generated by the impact, and the suction force is generated through the negative pressure fan 76, so that the working efficiency of the device is obviously improved;
a telescopic slot is formed in the surface of the rotary disc 74, a support 741, an arc-shaped elastic plate 742, a first elastic sheet 743, an arc-shaped support 744, a pressing plate 745 and an elastic ball 746 are arranged in the telescopic slot of the rotary disc 74, the support 741 is fixedly connected to the bottom of the impact blade 75, the arc-shaped elastic plate 742 is fixedly connected to the bottom of the support 741, the first elastic sheet 743 is fixedly connected to the bottom of the arc-shaped elastic plate 742, the other end of the first elastic sheet 743 is fixedly connected to the inner wall of the telescopic slot, the arc-shaped support 744 is fixedly connected to the side surface of the first elastic sheet 743, the pressing plate 745 is fixedly connected to the other end of the arc-shaped support 744, and the elastic ball 746 is arranged among the first elastic sheet 743, the arc-shaped elastic plate 742 and the pressing plate 745;
the impact blade 75 is internally and fixedly connected with a magnetic resistance ball 751, the magnetic resistance ball 751 is internally provided with an impact groove and a sliding groove, the magnetic resistance ball 751 is internally provided with an elastic rope 752, a magnetic ball 753, a magnetic resistance plate 754, a first air bag 755, a magnetic suction slider 756 and a magnetic suction seat 757, the elastic rope 752 is fixedly connected with the inner wall of the impact groove of the magnetic resistance ball 751, the magnetic ball 753 is fixedly connected with the other end of the elastic rope 752, the magnetic resistance plate 754 is in sliding connection in the sliding groove, the first air bag 755 is arranged in the sliding groove, the first air bag 755 is in contact with the magnetic resistance plate 754, the magnetic suction slider 756 is in sliding connection in the sliding groove, the magnetic suction slider 756 is in contact with the first air bag 755, the magnetic suction seat 757 is fixedly connected with the bottom of the sliding groove, the magnetic resistance plate is driven to slide by the vibration of the impact blade, so that the magnetic ball impacts the inner wall of the impact groove, the impact blade to cause the secondary vibration of the impact blade, thereby improving the vibration effect of the impact blade, thereby the cleaning effect of the filter screen is better;
the surface of striking leaf 75 is seted up the buffer slot, and striking leaf 75 surface is provided with second gasbag a1, buffer sheet a2, second shell fragment a3, and second gasbag a1 sets up in the buffer slot, and buffer sheet a2 is at buffer slot sliding connection, buffer sheet a2 and second gasbag a1 contact, second shell fragment a3 fixed connection is at the buffer slot inner wall, and second shell fragment a3 and buffer sheet a2 contact.
When in use, smoke and waste gas are conveyed from the waste gas channel 3 to the interior of the filter box 1, and the waste gas is filtered by the filter screen 5 and the waste gas filter sheet 6 and then is emitted from smoke and dust 4; when the filter is carried out, the motor 72 works to drive the rotating rod 73 to rotate, so that the rotating disk 74 rotates, the impact blade 75 impacts the filter screen 5, the filter screen 5 vibrates, smoke dust adhered to the surface of the filter screen 5 falls into the bottom of the filter box 1, the filter screen 5 is prevented from being blocked, low working efficiency is caused, meanwhile, the negative pressure fan 76 works to generate suction force, so that the waste gas and the smoke dust quickly pass through the filter screen 5 and the waste gas filter sheet 6, and the working efficiency of the device is improved; when the impact blade 75 impacts the filter screen 5, the impact blade 75 is extruded to slide in the telescopic slot, the arc-shaped elastic plate 742 is extruded through the support 741, so that the arc-shaped elastic plate 742 is deformed under pressure and extrudes the first elastic sheet 743 and the elastic ball 746, the side surface of the elastic ball 746 is extruded when the first elastic sheet 743 is deformed, so that the elastic ball 746 is deformed, and when the impact blade 75 is separated from the filter screen 5, the elastic ball 746 rapidly rebounds under the elasticity of the arc-shaped elastic plate 742, the first elastic sheet 743 and the elastic ball 746; when the impact blade 75 impacts, the magnetic resistance plate 754 inside the magnetic resistance ball 751 slides in the sliding groove, and the magnetic ball 753 slides in the impact groove, so that the first air bag 755 is extruded and deformed to push the magnetic suction slide 756 to slide in the sliding groove, and meanwhile, the magnetic suction seat 757 generates magnetic attraction force on the magnetic ball 753, so that the magnetic ball 753 impacts the inner wall of the impact groove, so that the impact blade 75 vibrates for the second time, the vibration effect is improved, the cleaning effect of the filter screen 5 is better, after separation, the magnetic suction slide 756 returns to the original position through the magnetism of the magnetic ball 753, and the inside of the magnetic resistance ball 751 returns to the original position; when the impact blade 75 contacts the filter screen 5, the second air bag a1 is extruded and deformed, so that the buffer sheet a2 slides in the buffer groove, the second elastic sheet a3 is pressed and deformed, and when the impact blade is separated, the impact blade rebounds to the original position through the elasticity of the second elastic sheet a3, so that a certain buffer effect is achieved, a certain protection effect is achieved on the filter screen 5, and the service life of the filter screen is longer.
In conclusion, the arranged vibration mechanism 7 drives the impact blade 75 to rotate through the motor 72, so that the filter screen 5 is impacted, the filter screen is vibrated, smoke dust adhered to the surface of the filter screen 5 falls off, the period of the filter screen 5 needing to be cleaned is prolonged, the labor force of operators is reduced, the passing efficiency of the filter screen 5 can be improved through vibration generated by impact, and the suction force is generated through the negative pressure fan 76, so that the working efficiency of the device is obviously improved;
through the magnetic ball that hinders that sets up, through the vibrations of striking leaf, the drive hinders the magnetic sheet and slides, causes the magnetic ball to strike the inslot wall, causes striking leaf secondary vibrations, promotes the vibrations effect of striking leaf to the clearance effect that makes the filter screen is better.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a smoke and dust exhaust gas filtering device, includes rose box (1), chamber door (2), exhaust gas passageway (3), chimney (4), filter screen (5) and exhaust gas filter (6), chamber door (2) are articulated to be connected in the front of rose box (1), exhaust gas passageway (3) fixed connection is in the side of rose box (1), chimney (4) fixed connection is at the top of rose box (1), filter screen (5) fixed connection is at the inner wall of rose box (1), exhaust gas filter (6) fixed connection is at the inner wall of rose box (1), its characterized in that:
filter tank (1) inside is provided with vibrations mechanism (7), vibrations mechanism (7) include motor base (71), motor (72), bull stick (73), carousel (74), striking leaf (75) and negative-pressure air fan (76), motor base (71) fixed connection is in the side of filter tank (1), motor (72) fixed connection is at the top of motor base (71), bull stick (73) fixed connection is in the rotation end of motor (72), and the other end of bull stick (73) passes the side of filter tank (1) and extends to the inside of filter tank (1), carousel (74) fixed connection is at the other end of bull stick (73), strike the side of leaf (75) fixed connection in carousel (74), negative-pressure air fan (76) fixed connection is at the inner wall of chimney (4).
2. The smoke exhaust filtering device according to claim 1, wherein: the surface of the rotary disc (74) is provided with a telescopic groove, a support (741), an arc-shaped elastic plate (742), a first elastic sheet (743), an arc-shaped support (744), a squeezing plate (745) and an elastic ball (746) are arranged in the telescopic groove of the rotary disc (74), the support (741) is fixedly connected to the bottom of the impact blade (75), the arc-shaped elastic plate (742) is fixedly connected to the bottom of the support (741), the first elastic sheet (743) is fixedly connected to the bottom of the arc-shaped elastic plate (742), the arc-shaped support (744) is fixedly connected to the side face of the first elastic sheet (743), the squeezing plate (745) is fixedly connected to the other end of the arc-shaped support (744), and the elastic ball (746) is arranged between the first elastic sheet (743), the arc-shaped elastic plate (742) and the squeezing plate (745).
3. The smoke exhaust filtering device according to claim 1, wherein: the utility model discloses a magnetic ball, including striking leaf (75), magnetism ball (751), hinder magnetism ball (751), inside striking groove and the sliding tray of seting up of magnetism ball (751), hinder inside elastic rope (752), magnetic ball (753), hinder magnetic sheet (754), first gasbag (755), magnetism slider (756) and the seat of inhaling of magnetism (757) of being provided with of magnetism ball (751), elastic rope (752) fixed connection is at the inner wall of the striking groove of hindering magnetism ball (751), magnetic ball (753) fixed connection is at the other end of elastic rope (752), hinder magnetic sheet (754) sliding connection in the sliding tray, first gasbag (755) sets up in the sliding tray, magnetism slider (756) sliding connection in the sliding tray is inhaled to magnetism, and magnetism slider (756) and first gasbag (755) contact of inhaling, magnetism seat of inhaling (757) fixed connection is in the bottom of sliding tray.
4. The smoke exhaust filtering device according to claim 1, wherein: the surface of striking leaf (75) is seted up the dashpot, striking leaf (75) surface is provided with second gasbag (a1), buffer pad (a2), second shell fragment (a3), second gasbag (a1) sets up in the dashpot, buffer pad (a2) sliding connection in the dashpot, second shell fragment (a3) fixed connection is at the dashpot inner wall, and second shell fragment (a3) and buffer pad (a2) contact.
5. A smoke exhaust filtering device according to claim 2 wherein: the other end of the first elastic sheet (743) is fixedly connected with the inner wall of the telescopic groove.
6. A smoke exhaust filtering device according to claim 3 wherein: the first air bag (755) is in contact with the magnetic resistance plate (754).
7. The smoke exhaust filtering device according to claim 4, wherein: the cushion sheet (a2) is in contact with the second airbag (a 1).
CN202110535966.5A 2021-05-17 2021-05-17 Smoke and dust exhaust gas filter equipment Withdrawn CN113318524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110535966.5A CN113318524A (en) 2021-05-17 2021-05-17 Smoke and dust exhaust gas filter equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110535966.5A CN113318524A (en) 2021-05-17 2021-05-17 Smoke and dust exhaust gas filter equipment

Publications (1)

Publication Number Publication Date
CN113318524A true CN113318524A (en) 2021-08-31

Family

ID=77415702

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110535966.5A Withdrawn CN113318524A (en) 2021-05-17 2021-05-17 Smoke and dust exhaust gas filter equipment

Country Status (1)

Country Link
CN (1) CN113318524A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114768410A (en) * 2022-04-19 2022-07-22 谭瑞平 Waste gas treatment equipment for incinerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114768410A (en) * 2022-04-19 2022-07-22 谭瑞平 Waste gas treatment equipment for incinerator

Similar Documents

Publication Publication Date Title
CN113318524A (en) Smoke and dust exhaust gas filter equipment
CN214906405U (en) Anti-blocking structure of filter screen of dust collector
CN215412332U (en) Building is warm to lead to and is used high-efficient ventilation unit
CN112426834B (en) Full-effect haze-removing fresh air fan and haze-removing method thereof
CN111663731A (en) Air purification decorative board for architectural decoration
CN111829098A (en) Self-cleaning formula air purifier
CN216747642U (en) Quick formaldehyde testing arrangement
CN108626801B (en) Intelligent air purifier
CN213739398U (en) Device for detecting microbial pollutants in indoor air
CN113751425A (en) Dust removal device for electric automation equipment
CN114871545A (en) Electric welding machine capable of reducing volatilization of welding gas
CN212461134U (en) Noise isolation device
CN115253519A (en) Environment-friendly air purification dust collecting device and collecting method
CN113791014A (en) Automatic mask manufacturing quality detection device and detection method thereof
CN211966141U (en) Stainless steel cutting saw
CN218721752U (en) Kitchen oil fume treatment device
CN208643641U (en) A kind of packaged type exhaust apparatus
CN213645185U (en) High-efficient silent electric precipitator
CN212901891U (en) Kitchen fan with air refreshing function
CN220388792U (en) Prevent fire door processing with clear bits structure
CN211027353U (en) Laboratory computer maintenance platform maintains device
CN220294314U (en) Gas leakage treatment device
CN216767212U (en) Indoor purification environmental protection timber
CN208918880U (en) A kind of farm's negative-pressure air fan
CN219572170U (en) Fire engineering fume extractor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20210831