CN219663184U - Tunnel air primary filtering component with composite structure - Google Patents
Tunnel air primary filtering component with composite structure Download PDFInfo
- Publication number
- CN219663184U CN219663184U CN202320308880.3U CN202320308880U CN219663184U CN 219663184 U CN219663184 U CN 219663184U CN 202320308880 U CN202320308880 U CN 202320308880U CN 219663184 U CN219663184 U CN 219663184U
- Authority
- CN
- China
- Prior art keywords
- exhaust fan
- composite structure
- hole
- filter
- piece
- 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.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 238000001914 filtration Methods 0.000 title abstract description 18
- 238000010276 construction Methods 0.000 claims description 18
- 125000003003 spiro group Chemical group 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 238000011045 prefiltration Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a tunnel air primary filtering component with a composite structure, wherein an air inlet pipe is fixedly communicated with the left end of a rectangular box body for sucking air in a tunnel, an exhaust through hole is uniformly formed in the right side surface of the rectangular box body for exhausting air after primary filtering, rectangular windows are formed in the left side and the right side of the upper surface of the rectangular box body for inserting and installing devices, the inserted devices are respectively a composite structure type filtering piece and an exhaust fan piece from left to right, the exhaust fan piece is used for exhausting air outwards to generate negative pressure suction in the rectangular box body, the negative pressure suction acts on the air inlet pipe to suck the tunnel air inwards, the primary filtering of large particle dust and impurities is carried out on the tunnel air through the composite structure type filtering piece, the front ends of the composite structure type filtering piece and the exhaust fan piece are limited and fixed through a screw connection type limiting structure, and the screw connection type limiting structure is operated when disassembly is needed, and cleaning is convenient after the composite structure type filtering piece and the exhaust fan piece are extracted from the upper end of the rectangular window.
Description
Technical Field
The utility model relates to the technical field of tunnel air purification, in particular to a tunnel air primary filtering component with a composite structure.
Background
At present, tunnel construction can form a large amount of harmful gas and dust in the tunnel for constructor can't carry out the construction, also can cause serious injury to constructor health simultaneously, influences the efficiency of construction, so need use construction tunnel air purification equipment to handle the air in the tunnel, tunnel air purification equipment includes tunnel air primary filter component, its effect carries out with impurity preliminary filtration for the large granule dust in the tunnel air, for follow-up treatment provides convenience.
The existing tunnel air primary filtering component in the current market is inconvenient to detach and clean the filter screen due to a large amount of dust accumulated on the filter screen after long-time use, so that the air purification efficiency is affected; the exhaust equipment for generating negative pressure suction is also adhered with a large amount of dust on the surface after long-term use, so that the disassembly and cleaning are inconvenient, and the air purification efficiency is affected; therefore, it is necessary to design a tunnel air primary filter member having a strong practicality and a composite structure capable of conveniently removing and cleaning the filter screen structure and the exhaust device.
Disclosure of Invention
The utility model aims to provide a tunnel air primary filter component with a composite structure, which is used for solving the problems in the background technology.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a tunnel air prefilter component of composite construction, includes the removal base, the upper end fixed mounting of removal base has the rectangle box, the fixed intercommunication in left side wall middle part of rectangle box has the intake pipe, the even exhaust through-hole of having seted up of rectangle box right flank, rectangular window has all been seted up to the upper surface left and right sides of rectangle box, the left side peg graft in the rectangular window has the composite construction filter, the right side peg graft in the rectangular window have the exhaust fan spare, and the wind-force output of exhaust fan spare is towards the right side, the lower extreme of composite construction filter and exhaust fan spare supports and leans on rectangle box inner chamber bottom surface department, the left and right sides of rectangle box front wall upper end all is equipped with spiro union limit structure, and control the spiro union limit structure supports respectively on the front wall of composite construction filter and exhaust fan spare, the upper surface front and back edge of removal base evenly is equipped with spiro union formula bearing structure, and the spiro union bearing structure lower extreme supports on ground.
According to the technical scheme, the composite structure formula filter element includes first roof, the fixed first handle that is equipped with in upper surface middle part of first roof, the equal fixed mounting in first roof ground left and right sides has the riser, controls riser lower extreme fixed mounting has composite structure formula filter element bottom plate, the even integrated into one piece in front and back edge of riser lateral surface has the joint board, the left side joint has first filter screen in the joint board, the right side joint has the second filter screen in the joint board, control the position grafting has the active carbon filter plate between riser and the composite structure formula filter element bottom plate.
According to the technical scheme, the exhaust fan piece comprises a second top plate, a second handle is fixedly arranged in the middle of the upper surface of the second top plate, a rectangular block is fixedly arranged on the bottom surface of the second top plate, a fan installation through hole is formed in the middle of the left side wall and the right side wall of the rectangular block, an exhaust fan is fixedly arranged on the inner wall of the fan installation through hole, and the exhaust fan is connected with an external power supply.
According to the technical scheme, the spiro union formula limit structure is including seting up in the first screw thread through-hole of rectangle box front wall upper end, the spiro union has the external screw thread post in the first screw thread through-hole, the external screw thread post rear end supports and leans on the front wall of composite structure formula filter and exhaust fan spare, external screw thread post front wall middle part fixed mounting has the handle board, the gripping hole has evenly been seted up to the lateral wall about the handle board, gripping hole longitudinal distribution has four.
According to the technical scheme, the movable base comprises a bottom plate, universal wheels are fixedly assembled at four corners of the bottom surface of the bottom plate, flanges are longitudinally and fixedly assembled at the left side and the right side of the upper surface of the bottom plate, the lower end of the rectangular box body is inserted between the flanges at the left side and the right side, limit bolts are uniformly screwed on the outer walls of the flanges at the left side and the right side, the inner ends of the limit bolts are abutted against the outer walls of the rectangular box body, and screw-on supporting structures are uniformly assembled at the front edge and the rear edge of the upper surface of the bottom plate.
According to the technical scheme, the spiro union formula bearing structure is including setting up the second screw thread through-hole of edge around the bottom plate upper surface, the spiro union has the screw rod in the second screw thread through-hole, the upper end fixed mounting of screw rod has the hand to twist the circle cap, the lower extreme fixed mounting of screw rod has the backup pad, and the backup pad bottom surface supports and lean on subaerial.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the rectangular box body is arranged on the movable base, the left end of the rectangular box body is fixedly communicated with the air inlet pipe for sucking air in the tunnel, the right side surface of the rectangular box body is uniformly provided with the exhaust through holes for exhausting air after primary filtration, the left side and the right side of the upper surface of the rectangular box body are provided with the rectangular windows for inserting and installing devices, the inserted devices are respectively a composite structure type filter piece and an exhaust fan piece from left to right, the exhaust fan piece is used for exhausting air outwards to generate negative pressure suction in the rectangular box body, the negative pressure suction acts on the air inlet pipe to suck tunnel air inwards, the primary filtration of large particle dust and impurities is carried out on the tunnel air through the composite structure type filter piece, the front ends of the composite structure type filter piece and the exhaust fan piece are limited and fixed through the screw connection type limiting structure, and the screw connection type limiting structure is operated when disassembly is needed, and the filter screen structure and the exhaust fan piece are conveniently cleaned after the composite structure type filter piece and the exhaust fan piece are extracted from the upper end of the rectangular window.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic illustration of a composite structural filter element of the present utility model;
FIG. 3 is a schematic view of an exhaust fan assembly of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: 1-moving base, 11-bottom plate, 12-universal wheel, 13-flange, 14-limit bolt, 2-rectangular box, 3-intake pipe, 4-rectangular window, 5-composite structure filter piece, 51-first roof, 52-first handle, 53-riser, 54-composite structure filter piece bottom plate, 55-snap plate, 56-first filter screen, 57-second filter screen, 58-active carbon filter plate, 6-exhaust fan piece, 61-second roof, 62-second handle, 63-rectangular block, 64-fan mounting through hole, 65-exhaust fan, 7-exhaust through hole, 8-screw-on limit structure, 81-first screw through hole, 82-external screw post, 83-handle plate, 84-grip hole, 9-screw-on support structure, 91-second screw through hole, 92-screw, 93-support plate, 94-screwed cap.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a tunnel air prefilter component of composite construction, including removing base 1, remove the fixed assembly in upper end of base 1 and have rectangle box 2, the fixed intercommunication in left side wall middle part of rectangle box 2 has intake pipe 3, rectangle window 4 has all been seted up to rectangle box 2 right flank, the rectangle window 4 has all been seted up to rectangle box 2's upper surface left and right sides, peg graft in the rectangle window 4 in the left side has composite construction filter 5, peg graft in the rectangle window 4 in the right side has exhaust fan 6, and exhaust fan 6's wind-force output is towards the right side, composite construction filter 5 and exhaust fan 6's lower extreme support is by rectangle box 2 inner chamber bottom surface department, the left and right sides of rectangle box 2 front wall upper end all is equipped with spiro union limit structure 8, left and right spiro union limit structure 8 is supported respectively on the front wall of composite construction filter 5 and exhaust fan 6, the front and back edge is equipped with spiro union formula support structure 9 in the front and the spiro union formula support structure 9 lower extreme supports subaerial.
Through installing rectangle box 2 on removing base 1, fixed intercommunication intake pipe 3 is used for the suction of tunnel interior air at rectangle box 2 left end, evenly set up the exhaust through-hole 7 in rectangle box 1 right flank and be used for just straining the discharge of back air, set up rectangle window 4 in rectangle box 1 upper surface left and right sides and be used for the device to insert the installation, the male device is composite structure filter 5 and exhaust fan 6 respectively from left to right, exhaust fan 6 is used for outwards exhausting and produces negative pressure suction in rectangle box 1, negative pressure suction effect is inwards inhaled tunnel air in intake pipe 3 department, carry out the preliminary filtration of big granule dust and impurity to tunnel air through composite structure filter 5, composite structure filter 5 and exhaust fan 6 front end is spacing fixed through spiro union formula limit structure 8, can to spiro union formula limit structure 8 when dismantling, with composite structure filter and 5 exhaust fan 6 follow rectangle window 4 upper end and take out, be convenient for clear up filter screen structure and equipment.
Specifically, the composite structure type filter element 5 comprises a first top plate 51, a first handle 52 is fixedly arranged in the middle of the upper surface of the first top plate 51, vertical plates 53 are fixedly arranged on the left side and the right side of the ground of the first top plate 51, a composite structure type filter element bottom plate 54 is fixedly arranged at the lower ends of the left vertical plates and the right vertical plates 53, clamping plates 55 are uniformly and integrally formed at the front edge and the rear edge of the outer side surface of each vertical plate 53, a first filter screen 56 is clamped in the left side clamping plate 55, a second filter screen 57 is clamped in the right side clamping plate 55, and an activated carbon filter plate 58 is inserted between the left vertical plates 53 and the composite structure type filter element bottom plate 54.
The aperture of the first filter screen 56 is larger than that of the second filter screen 57, the first filter screen 56 and the second filter screen 57 are respectively clamped in the clamping plates on the outer sides of the vertical plates on the same side, and the first filter screen 56, the second filter screen 57 and the activated carbon filter plates 58 can be outwards pulled out during disassembly, so that a composite structure is formed, and the filtering effect on large-particle dust and impurities is improved.
Specifically, the exhaust fan member 6 includes a second top plate 61, a second handle 62 is fixedly fitted to the middle portion of the upper surface of the second top plate 61, a rectangular block 63 is fixedly fitted to the bottom surface of the second top plate 61, a fan mounting through hole 64 is provided in the middle portion of the left and right side walls of the rectangular block 63, an exhaust fan 65 is fixedly fitted to the inner wall of the fan mounting through hole 64, and the exhaust fan 65 is connected to an external power source.
Specifically, the screw-connection type limiting structure 8 comprises a first threaded through hole 81 formed in the upper end of the front wall of the rectangular box body 2, an external threaded column 82 is screwed in the first threaded through hole 81, the rear end of the external threaded column 82 abuts against the front wall of the composite structure type filtering piece 5 and the exhaust fan piece 6, a handle plate 83 is fixedly assembled in the middle of the front wall of the external threaded column 82, grip holes 84 are uniformly formed in the left side wall and the right side wall of the handle plate 83, and four grip holes 84 are longitudinally distributed; the grip hole 84 is used for finger insertion to facilitate gripping of the handle plate 83, and the limitation of the front walls of the composite structural filter element 5 and the exhaust fan element 6 can be adjusted by turning the male screw post 82.
Specifically, the mobile base 1 comprises a bottom plate 11, universal wheels 12 are fixedly assembled at four corners of the bottom surface of the bottom plate 11, flanges 13 are longitudinally and fixedly assembled at the left side and the right side of the upper surface of the bottom plate 11, the lower end of the rectangular box body 2 is inserted between the flanges 13 at the left side and the right side, limit bolts 14 are uniformly screwed on the outer walls of the flanges 13 at the left side and the right side, the inner ends of the limit bolts 14 are abutted against the outer walls of the rectangular box body 2, and screw-type supporting structures 9 are uniformly assembled at the front edge and the rear edge of the upper surface of the bottom plate 11.
Specifically, the screw-connected supporting structure 9 comprises a second threaded through hole 91 formed at the front edge and the rear edge of the upper surface of the bottom plate 11, a screw 92 is screwed in the second threaded through hole 91, a hand-screwed round cap 94 is fixedly assembled at the upper end of the screw 92, a supporting plate 93 is fixedly assembled at the lower end of the screw 92, and the bottom surface of the supporting plate 93 is abutted against the ground; when the movable type is needed, the screw-connected type supporting structure 9 is used for supporting against the ground; when the device needs to be moved, the screw-connected supporting structure 9 is lifted to be separated from the ground, and the universal wheels 12 on the movable base 1 are utilized to facilitate the movement of the whole device in the tunnel.
Working principle:
according to the utility model, the rectangular box body 2 is arranged on the movable base 1, the left end of the rectangular box body 2 is fixedly communicated with the air inlet pipe 3 for sucking air in a tunnel, the right side surface of the rectangular box body 1 is uniformly provided with the exhaust through holes 7 for exhausting air after primary filtration, the left side and the right side of the upper surface of the rectangular box body 1 are provided with the rectangular windows 4 for device insertion and installation, the inserted devices are respectively a composite structure type filter piece 5 and an exhaust fan piece 6 from left to right, the exhaust fan piece 6 is used for exhausting air outwards to generate negative pressure suction in the rectangular box body 1, the negative pressure suction acts on the air inlet pipe 3 to suck tunnel air inwards, the front ends of the composite structure type filter piece 5 and the exhaust fan piece 6 are limited and fixed through the screw connection type limiting structure 8, and the filter screen structure and the exhaust fan piece 6 are convenient to clean after the composite structure type filter piece and the 5 exhaust fan piece 6 are pulled out from the upper end of the rectangular window 4 when the composite structure is required to be disassembled.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a tunnel air primary filter component of composite construction which characterized in that: including removing base (1), the upper end fixed mounting who removes base (1) has rectangle box (2), the fixed intercommunication in left side wall middle part of rectangle box (2) has intake pipe (3), exhaust through-hole (7) have evenly been seted up to rectangle box (2) right flank, rectangle window (4) have all been seted up to the upper surface left and right sides of rectangle box (2), the left side the joint has composite structure formula filter (5) in rectangle window (4), the right side peg graft in rectangle window (4) has exhaust fan spare (6), and the wind-force output of exhaust fan spare (6) is towards the right side, the lower extreme butt of composite structure formula filter (5) and exhaust fan spare (6) is in the bottom surface department of rectangle box (2) inner chamber, the left and right sides of rectangle box (2) front wall upper end all is equipped with spiral shell's limit structure (8), left and right sides spiral shell's limit structure (8) are in the front of being equipped with respectively on composite structure filter (5) and exhaust fan spare (6) front wall upper end face and on the support surface (9) of moving down evenly support structure.
2. A tunnel air prefilter member of composite construction as defined in claim 1, wherein: the utility model provides a composite structure formula filter (5) includes first roof (51), fixed first handle (52) of being equipped with in the middle part of the upper surface of first roof (51), all fixed mounting is equipped with riser (53) in the left and right sides on first roof (51) ground, control riser (53) lower extreme fixed mounting has composite structure formula filter bottom plate (54), the even integrated into one piece in front and back edge of riser (53) lateral surface has joint board (55), the left side joint has first filter screen (56) in joint board (55), the right side joint has second filter screen (57) in joint board (55), control the position grafting has active carbon filter plate (58) between riser (53) and composite structure formula filter bottom plate (54).
3. A tunnel air prefilter member of composite construction as defined in claim 1, wherein: the exhaust fan piece (6) comprises a second top plate (61), a second handle (62) is fixedly arranged in the middle of the upper surface of the second top plate (61), a rectangular block (63) is fixedly arranged on the bottom surface of the second top plate (61), a fan installation through hole (64) is formed in the middle of the left side wall and the right side wall of the rectangular block (63), an exhaust fan (65) is fixedly arranged on the inner wall of the fan installation through hole (64), and the exhaust fan (65) is connected with an external power supply.
4. A tunnel air prefilter member of composite construction as defined in claim 1, wherein: the utility model provides a limit structure of spiro union formula (8) is including seting up in first screw thread through-hole (81) of rectangle box (2) front wall upper end, the spiro union has external screw thread post (82) in first screw thread through-hole (81), external screw thread post (82) rear end supports and leans on the front wall of composite structure formula filter (5) and exhaust fan spare (6), fixed mounting has handle board (83) in the middle part of external screw thread post (82) front wall, grip hole (84) have evenly been seted up to lateral wall about handle board (83), grip hole (84) longitudinal distribution has four.
5. A tunnel air prefilter member of composite construction as defined in claim 1, wherein: the movable base (1) comprises a base plate (11), universal wheels (12) are fixedly assembled at four corners of the bottom surface of the base plate (11), flanges (13) are longitudinally and fixedly assembled at the left side and the right side of the upper surface of the base plate (11), the lower end of the rectangular box body (2) is inserted between the flanges (13) at the left side and the right side, limit bolts (14) are uniformly screwed on the outer walls of the flanges (13), the inner ends of the limit bolts (14) are abutted against the outer walls of the rectangular box body (2), and screw-joint supporting structures (9) are uniformly assembled at the front edge and the rear edge of the upper surface of the base plate (11).
6. A tunnel air prefilter member of composite construction as defined in claim 5, wherein: the screw-on type supporting structure (9) comprises a second threaded through hole (91) formed in the front edge and the rear edge of the upper surface of a bottom plate (11), a screw rod (92) is screwed in the second threaded through hole (91), a hand-on round cap (94) is fixedly assembled at the upper end of the screw rod (92), a supporting plate (93) is fixedly assembled at the lower end of the screw rod (92), and the bottom surface of the supporting plate (93) abuts against the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308880.3U CN219663184U (en) | 2023-02-24 | 2023-02-24 | Tunnel air primary filtering component with composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308880.3U CN219663184U (en) | 2023-02-24 | 2023-02-24 | Tunnel air primary filtering component with composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219663184U true CN219663184U (en) | 2023-09-12 |
Family
ID=87924942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320308880.3U Active CN219663184U (en) | 2023-02-24 | 2023-02-24 | Tunnel air primary filtering component with composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219663184U (en) |
-
2023
- 2023-02-24 CN CN202320308880.3U patent/CN219663184U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108339339A (en) | A kind of indoor air purification dust-extraction unit | |
| CN219663184U (en) | Tunnel air primary filtering component with composite structure | |
| CN211162060U (en) | Dust absorption formula electric drill | |
| CN210511988U (en) | Air purifier convenient for cleaning internal impurities | |
| CN211412349U (en) | High-efficient dust collecting device | |
| CN219441091U (en) | Energy-saving environment-friendly atmospheric pollution treatment device | |
| CN214415970U (en) | Dust collector equipment | |
| CN208742148U (en) | A kind of scolding tin smoke purifier | |
| CN218306939U (en) | Central authorities' dust pelletizing system | |
| CN214809512U (en) | Industrial waste gas desulfurization dust collecting equipment | |
| CN215388455U (en) | Environment-friendly exhaust apparatus for building | |
| CN110917743A (en) | Workshop metal particle and smoke and dust purifier | |
| CN109794113A (en) | A kind of energy conservation and environmental protection air contaminant treatment device | |
| CN213531173U (en) | Environment-friendly electric welding machine convenient for smoke discharge | |
| CN210993460U (en) | Industrial boiler exhaust treatment device | |
| CN216909721U (en) | Dust collector of polydimethylsilane | |
| CN208591651U (en) | A kind of air purifier of adjustable wind direction | |
| CN220495957U (en) | Industrial waste gas water spray set | |
| CN220717033U (en) | Equipment belt cleaning device for power engineering | |
| CN208244387U (en) | A kind of environmental protection machinery dedusting and purifying air environmental protecting device | |
| CN221580140U (en) | Furniture application exhaust gas purification device | |
| CN216858703U (en) | Large-scale purification unit of smoke and dust for welding | |
| CN216171154U (en) | Organic waste gas treatment device in life | |
| CN220990183U (en) | Environment-friendly dust removal device for electromechanical engineering | |
| CN210905332U (en) | Exhaust port smoking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |