CN112516710A - Environment-friendly industrial waste gas purification device - Google Patents
Environment-friendly industrial waste gas purification device Download PDFInfo
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- CN112516710A CN112516710A CN202011390107.3A CN202011390107A CN112516710A CN 112516710 A CN112516710 A CN 112516710A CN 202011390107 A CN202011390107 A CN 202011390107A CN 112516710 A CN112516710 A CN 112516710A
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- Prior art keywords
- pipe
- waste gas
- disc
- filter
- industrial waste
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- 238000000746 purification Methods 0.000 title claims abstract description 27
- 239000007789 gas Substances 0.000 title claims abstract description 25
- 239000002440 industrial waste Substances 0.000 title claims abstract description 22
- 239000010865 sewage Substances 0.000 claims abstract description 43
- 239000007921 spray Substances 0.000 claims abstract description 34
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 239000010802 sludge Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 230000007306 turnover Effects 0.000 claims description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims 4
- 239000000428 dust Substances 0.000 description 9
- 238000001914 filtration Methods 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
- B01D29/80—Handling the filter cake in the filter for purposes other than for regenerating for drying
- B01D29/82—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression
- B01D29/828—Handling the filter cake in the filter for purposes other than for regenerating for drying by compression using screws
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention discloses an environment-friendly industrial waste gas purification device which comprises a spray cylinder, wherein an anti-blocking separation part is arranged in the spray cylinder. According to the invention, an anti-blocking separation part is arranged in the spray cylinder, and comprises a support plate, a filter pipe, a tail pipe, a sewage guide pipe, a helical blade and a bevel gear plate, wherein the support plate is rotatably arranged, one end of the filter pipe is sleeved in the sewage guide pipe and is in axial sliding fit, the helical blade is sleeved in the sewage guide pipe and is sleeved outside the filter pipe, the tail pipe is rotatably connected with the lower end surface of the support plate, a torsion spring is arranged at the rotary connection position, one end of the sewage guide pipe is rotatably connected with a central shaft arranged in the middle of the lower end surface of the support plate, the other end of the filter pipe is hinged with one end of the tail pipe, the helical blade is rotatably matched with the sewage guide pipe, the number of the sewage guide pipes is at least three, the spiral blade and the sewage guide pipe are circumferentially and uniformly distributed relative to the central shaft, so.
Description
Technical Field
The invention relates to the technical field of industrial waste gas treatment, in particular to an environment-friendly industrial waste gas purification device.
Background
The industrial waste gas purification mainly aims at the treatment of industrial waste gas such as dust particles, smoke and dust, peculiar smell gas and toxic and harmful gas generated in industrial places; common exhaust purification has factory's smoke and dust exhaust purification, workshop dust exhaust purification, organic exhaust purification, waste gas peculiar smell purification, acid-base exhaust purification, chemical industry exhaust purification etc, at present, involve spraying the dust removal ash removal at exhaust-gas treatment's in-process, the dust can be stayed in the spray column, the dust volume accumulates behind the certain degree, the effect that can greatly reduced spray column removed dust, current spray column adopts the circulation filtration operation, but the phenomenon of filter clogging appears easily, and lack the blowdown function, the blowdown operation is inconvenient.
Therefore, the invention provides an environment-friendly industrial waste gas purification device.
Disclosure of Invention
The invention aims to: in order to solve the problems mentioned in the background art, an environment-friendly industrial waste gas purification device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly industrial waste gas purification device comprises a spray cylinder, wherein an anti-blocking separation part is arranged in the spray cylinder and comprises a supporting disk, a filter pipe, a tail pipe, a sewage guide pipe, spiral blades, a conical fluted disc and a sludge cylinder, the lower end face of the supporting disk is fixedly provided with a central shaft, the number of the sewage guide pipes is at least three, one end of each sewage guide pipe is rotatably connected with the central shaft, the axis of each sewage guide pipe is parallel to the disk face of the supporting disk, one end of each filter pipe is sleeved in each sewage guide pipe, the other end of each filter pipe is hinged with one end of the tail pipe, the filter pipe and the sewage guide pipe are in axial sliding fit, the spiral blades are sleeved in the sewage guide pipe and sleeved outside the filter pipe, one end of each spiral blade, which is close to the central shaft, is provided with a rotary disk, the rotary disk is rotatably connected with the sewage guide pipe, the tail pipe is arranged at the lower part of the, be provided with the torsional spring between this spliced pole and the supporting disk, the outward appearance wall of leading dirty pipe has been seted up the water hole and has been provided with the fixed blow off pipe that is provided with opening down, a mud section of thick bamboo sets up in the lower part of supporting disk and is provided with rotatory lid on it, the bottom fixed connection of rotatory lid and blow off pipe, the awl fluted disc is located the fixed support frame that is provided with the inside fixed connection of a mud section of thick bamboo in upper portion and the bottom of rotatory lid, this awl fluted disc and gyration dish meshing, the bottom of a mud section of thick bamboo runs through the bobbin base of a spray section of thick bamboo and is fixed connection, the fixed drive tube that runs through the spray section of thick bamboo top that.
As a further description of the above technical solution:
the outer wall of the filter pipe is fixedly provided with a drain pipe, a gap at one end of the drain pipe penetrates through the lower end face of the supporting plate, the driving pipe is connected with a lower turnover box and an upper turnover box in a rotating mode, the lower turnover box and the upper turnover box are communicated with the inner cavity of the driving pipe, and the lower turnover box is connected with the drain pipe through a pipeline.
As a further description of the above technical solution:
and a suction pipe with one end penetrating through the inner wall of the spray cylinder is fixedly arranged on the outer surface wall of the upper turnover box.
As a further description of the above technical solution:
the other end of the helical blade is fixedly connected with a counterweight ring, and the counterweight ring is sleeved outside the filter pipe in a clearance way.
As a further description of the above technical solution:
and the spiral blades are provided with axially distributed draining holes.
As a further description of the above technical solution:
and a shifting plate is fixedly arranged on one side of the rotary disc opposite to the filtering pipe, and the shifting plate is matched with the sewage discharge pipe for use.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, an anti-blocking separation part is arranged in the spray cylinder, and comprises a support plate, a filter pipe, a tail pipe, a sewage guide pipe, a helical blade and a bevel gear plate, wherein the support plate is rotatably arranged, one end of the filter pipe is sleeved in the sewage guide pipe and is in axial sliding fit, the helical blade is sleeved in the sewage guide pipe and is sleeved outside the filter pipe, the tail pipe is rotatably connected with the lower end surface of the support plate, a torsion spring is arranged at the rotary connection position, one end of the sewage guide pipe is rotatably connected with a central shaft arranged in the middle of the lower end surface of the support plate, the other end of the filter pipe is hinged with one end of the tail pipe, the helical blade is rotatably matched with the sewage guide pipe, the number of the sewage guide pipes is at least three, the spiral blade and the sewage guide pipe are circumferentially and uniformly distributed relative to the central shaft, so.
2. According to the invention, the anti-blocking separation part is provided with the sludge cylinder positioned at the lower part of the supporting plate, the outer wall of the sludge guide pipe is provided with the sewage discharge pipe, the sewage discharge pipe and the top of the sludge cylinder are fixedly connected through the rotating cover, and the spiral blade rotates to guide the sludge in the sewage guide pipe into the sludge cylinder, so that the function of separating dirt from a water body is achieved.
3. According to the invention, the other end of the spiral blade is fixedly connected with the counterweight ring, the counterweight ring is sleeved outside the filter pipe in a clearance manner, the spiral blade is provided with the axially distributed water draining holes, and the dirt contains a large amount of water, so that the spiral blade can compress the dirt in the rotating process and filter the separated water body, so that sludge can be conveniently gathered, the rotating inertia of the spiral blade can be increased through the arrangement of the counterweight ring, the spiral blade usually has elasticity, and under the action of the inertia force of the counterweight ring, the spiral blade can be elongated, so that the clearance between the spiral blade and the filter pipe can be reduced, and sludge can be more thoroughly scraped.
Drawings
FIG. 1 is a schematic structural view of an anti-blocking separation part and a spray cylinder of an environment-friendly industrial waste gas purification device provided by the invention;
FIG. 2 is a schematic structural view of an anti-blocking separation part of an environment-friendly industrial waste gas purification device according to the present invention;
FIG. 3 is a schematic structural view of the environment-friendly industrial waste gas purification apparatus according to the present invention, after the anti-blocking separation part is removed from the support plate;
FIG. 4 is a schematic structural diagram of the filter tube, the helical blade and the sewage conduit of the environment-friendly industrial waste gas purification device provided by the present invention;
FIG. 5 is a schematic structural view of the environment-friendly industrial waste gas purification apparatus of the present invention, in which a counterweight ring and draining holes are added to FIG. 4.
Illustration of the drawings:
1. a spray cylinder; 2. an anti-blocking separation part; 21. a support disc; 211. a central shaft; 212. a drive tube; 2121. a transfer box is put down; 2122. putting the turnover box on the container; 21221. a suction tube; 22. a filter tube; 221. a drain pipe; 23. a tail pipe; 231. connecting columns; 24. a sewage guide pipe; 241. water passing holes; 242. a blow-off pipe; 25. a helical blade; 251. a rotary disk; 2511. dialing a plate; 252. a counterweight ring; 253. draining holes; 26. a conical fluted disc; 261. a support frame; 27. a sludge cylinder; 271. and rotating the cover.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, an environment-friendly industrial waste gas purification apparatus includes a spray cylinder 1, external waste gas is introduced into the spray cylinder 1 through a pipeline, a circulating spray device in the spray cylinder 1 separates dust and impurities in the waste gas, wherein the existing circulating spray device is usually matched with a filtering device, but is easily blocked, which causes that the blocked dirt and impurities are difficult to be cleaned and discharged, in the technical scheme provided by this embodiment, an anti-blocking separation part 2 is disposed in the spray cylinder 1, the anti-blocking separation part 2 includes a support plate 21, a filtering pipe 22, a tail pipe 23, a waste conduit 24, a helical blade 25, a conical gear plate 26 and a sludge cylinder 27, the support plate 21 is disposed at the bottom of the spray cylinder 1, a central shaft 211 is fixedly disposed on the lower end surface of the support plate 21, the number of the waste conduit 24 is at least three, one end of the waste conduit 24 is rotatably connected with the central shaft 211, a connecting plate can be welded on one end of the, the connecting plate is rotatably connected with the central shaft 211, the axes of the dirt guide pipes 24 and the disc surface of the supporting disc 21 are distributed in parallel, preferably, the axes of at least three dirt guide pipes 24 are all on the same horizontal plane, the dirt guide pipes 24 swing along the circumferential direction of the central shaft 211, therefore, the structure of the connecting plate can be made into a staggered structure (not shown in the figure), one end of the filter pipe 22 is sleeved in the dirt guide pipe 24, the other end of the filter pipe 22 is hinged with one end of the tail pipe 23, the filter pipe 22 and the dirt guide pipe 24 are in axial sliding fit, the structure of the filter pipe 22 is that a plurality of filter holes are formed in the outer surface wall of the filter pipe 22, relatively clean water bodies filtered by the filter holes in the spray cylinder 1 enter the filter pipe 22 through the filter holes, the helical blades 25 are sleeved in the dirt guide pipe 24 and are sleeved outside the filter pipe 22, a rotary disc 251 is arranged at one end, close to the central shaft 211, the tail pipe 23 is arranged at the lower part of the support plate 21, the outer surface wall of the tail pipe is fixedly provided with a connecting column 231 which is rotationally connected with the support plate 21, a torsion spring is arranged between the connecting column 231 and the support plate 21, the outer surface wall of the sewage guide pipe 24 is provided with a water through hole 241 and a sewage discharge pipe 242 with a downward opening, the opening direction of the water through hole 241 faces one side, sewage can enter the filter pipe 22 through the water through hole 241, sludge or sundries can be accumulated on the outer wall of the filter pipe 22 corresponding to the water through hole 241, when the support plate 21 is in a static state, the filter pipe 22, the tail pipe 23 and the sewage guide pipe 24 are in a coaxial distribution state, when the support plate 21 rotates, the tail pipe 23 can generate reverse swing due to the resistance of water, the filter pipe 22 can be driven to axially move in the sewage guide pipe 24, and the helical blade 25 is static relative to the sewage guide pipe 24 in the axial, the sludge cylinder 27 is arranged at the lower part of the supporting plate 21 and is provided with a rotating cover 271, the rotating cover 271 is fixedly connected with the bottom of the sewage discharge pipe 242, the bevel gear disc 26 is positioned at the upper part of the rotating cover 271, the bottom of the bevel gear disc 26 is fixedly provided with a supporting frame 261 fixedly connected with the inside of the sludge cylinder 27, the bevel gear disc 26 is meshed with the rotary disc 251, a meshed matching hole can be formed in the outer wall of the filter pipe 22, the bevel gear disc 26 is conveniently meshed with the rotary disc 251, the bottom of the sludge cylinder 27 penetrates through the cylinder bottom of the spray cylinder 1 and is fixedly connected, therefore, when the supporting plate 21 rotates, the spiral blade 25 can be indirectly controlled to rotate circumferentially, the sludge scraping function is achieved, the sludge sundries can be conveyed to the direction of the supporting plate core 21, a shifting plate 2511 is fixedly arranged on one side of the rotary disc 251 opposite to the filter pipe 22, the shifting plate 2511 is matched with the sewage discharge pipe 242, the rotary disc 251 drives the shifting plate, the shifting plate 2511 can shift the sewage into the sewage discharge pipe 242, and then is pushed into the sludge barrel 27 for collection, so that the function of separating sludge and impurities from water is achieved; the upper end surface of the supporting plate 21 is fixedly provided with a driving pipe 212 the top of which penetrates through the top of the spraying cylinder 1, the top of the spraying cylinder 1 can be provided with a driving motor, an output shaft of the driving motor is fixedly connected with the driving pipe 212, the outer wall of the filter pipe 22 is fixedly provided with a drain pipe 221, one end of the drain pipe 221 penetrates through the lower end surface of the supporting plate 21, the upper end surface of the supporting plate 21 is provided with a abdicating notch for the drain pipe 221 to penetrate through, the driving pipe 212 is rotatably connected with a lower turnover box 2121 and an upper turnover box 2122, the lower turnover box 2121 and the upper turnover box 2122 are both communicated with the inner cavity of the driving pipe 212, the lower turnover box 2121 is connected with the drain pipe 221 through a pipeline, the outer wall of the upper turnover box 2122 is fixedly provided with a suction pipe 21221, one end of which penetrates through the inner wall of the spraying cylinder 1.
Example 2
Please refer to fig. 5, the difference from embodiment 1 is that the other end of the helical blade 25 is fixedly connected with a counterweight ring 252, the counterweight ring 252 is sleeved outside the filtering pipe 22 in a clearance manner, the helical blade 25 is provided with axially distributed draining holes 253, and the dirt contains a large amount of water, so that the helical blade 25 can compress the dirt in the rotating process and filter the separated water body, thereby facilitating the gathering of the sludge, and the rotating inertia of the helical blade 25 can be increased by arranging the counterweight ring 252, the helical blade 25 usually has elasticity, and under the action of the inertia force of the counterweight ring 252, the helical blade 25 can be elongated, thereby reducing the clearance between the helical blade and the filtering pipe 22, and scraping the sludge more thoroughly.
The working principle is as follows: when the device is used, external waste gas is guided into the spray cylinder 1 through a pipeline, a spray device in the spray cylinder 1 is started to spray, dirt and impurities in the waste gas can be separated and mixed by a water body, the suction pipe 21221 is connected with an external negative pressure water pump, the negative pressure water pump is controlled to be started, the suction pipe 21221 generates suction force and passes through the upper turnover box 2122 and the lower turnover box 2121, then the water discharge pipe 221 is sucked, the filter pipe 22 starts to filter at the moment, the dirt in the water body can be gathered at the position of the water through hole 241 and adsorbed at the position of the filter hole on the filter pipe 22, when the dirt is accumulated to a certain degree, the blockage can occur, at the moment, a driving motor is arranged at the top of the spray cylinder 1 and controls the driving pipe 212 to rotate, the supporting plate 21 is further driven to rotate, due to the resistance effect of the water body, the tail pipe 23 can reversely swing, and further drives the filter pipe, and the helical blade 25 is static relative to the sewage guide pipe 24 in the axial direction, plays a role in scraping mud on the pipe wall of the filter pipe 22 and has the effect of preventing blockage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides an environment-friendly industrial waste gas purification device, includes a spray cylinder (1), its characterized in that, be provided with in the spray cylinder (1) and prevent stifled separation part (2), prevent stifled separation part (2) including supporting disk (21), filter tube (22), tail pipe (23), lead dirty pipe (24), helical blade (25), awl fluted disc (26) and a mud section of thick bamboo (27), the lower terminal surface of supporting disk (21) is fixed and is provided with center pin (211), the quantity of leading dirty pipe (24) is three and one end and center pin (211) rotate to be connected at least, lead the axis of dirty pipe (24) and the quotation parallel distribution of supporting disk (21), the pot head of filter tube (22) is established and is led dirty pipe (24) in and the other end is articulated with the one end of tail pipe (23), this filter tube (22) and lead dirty pipe (24) are axial sliding fit, helical blade (25) cover is established and is established in leading dirty pipe (24) and is established the outside of filter tube (22), one end of the spiral blade (25) close to the central shaft (211) is provided with a rotary disc (251), the rotary disc (251) is rotatably connected with a sewage guide pipe (24), a tail pipe (23) is arranged at the lower part of the support disc (21), the outer surface wall of the tail pipe is fixedly provided with a connecting column (231) rotatably connected with the support disc (21), a torsion spring is arranged between the connecting column (231) and the support disc (21), the outer surface wall of the sewage guide pipe (24) is provided with a water passing hole (241) and a sewage discharge pipe (242) with a downward opening, the sludge cylinder (27) is arranged at the lower part of the support disc (21) and is provided with a rotary cover (271), the bottom of the rotary cover (271) is fixedly connected with the sewage discharge pipe (242), the conical tooth disc (26) is positioned at the upper part of the rotary cover (271) and is fixedly provided with a support frame (261) fixedly connected with the inner part of the sludge, the conical tooth disc (26) is meshed with the rotary disc (251), the bottom of the sludge cylinder (27) penetrates through the cylinder bottom of the spray cylinder (1) and is fixedly connected with the spray cylinder, and the upper end face of the supporting disc (21) is fixedly provided with a driving pipe (212) with the top penetrating through the top of the spray cylinder (1).
2. The environment-friendly industrial waste gas purification device as claimed in claim 1, wherein a drain pipe (221) is fixedly arranged on the outer wall of the filter pipe (22), a gap at one end of the drain pipe (221) penetrates through the lower end surface of the support plate (21), a lower turnover box (2121) and an upper turnover box (2122) are rotatably connected to the drive pipe (212), the lower turnover box (2121) and the upper turnover box (2122) are both communicated with the inner cavity of the drive pipe (212), and the lower turnover box (2121) is connected with the drain pipe (221) through a pipeline.
3. The environmental protection type industrial waste gas purification device according to claim 2, wherein the outer surface wall of the upper turnover box (2122) is fixedly provided with a suction pipe (21221) one end of which passes through the inner wall of the spray cylinder (1).
4. The environmental protection type industrial waste gas purification device according to claim 1, wherein the other end of the helical blade (25) is fixedly connected with a counterweight ring (252), and the counterweight ring (252) is arranged outside the filter pipe (22) in a clearance fit manner.
5. The environmental protection type industrial waste gas purification device according to claim 4, wherein the helical blade (25) is provided with axially distributed draining holes (253).
6. The environmental protection type industrial waste gas purification device as claimed in claim 1, wherein a shifting plate (2511) is fixedly arranged on one side of the rotary disk (251) opposite to the filter pipe (22), and the shifting plate (2511) is matched with the drain pipe (242).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011390107.3A CN112516710A (en) | 2020-12-02 | 2020-12-02 | Environment-friendly industrial waste gas purification device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011390107.3A CN112516710A (en) | 2020-12-02 | 2020-12-02 | Environment-friendly industrial waste gas purification device |
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| CN112516710A true CN112516710A (en) | 2021-03-19 |
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| CN202011390107.3A Withdrawn CN112516710A (en) | 2020-12-02 | 2020-12-02 | Environment-friendly industrial waste gas purification device |
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| CN209985021U (en) * | 2019-01-28 | 2020-01-24 | 安徽养生天下生物科技有限公司 | Ferment raw materials fruit filtrating filter equipment |
| CN210302653U (en) * | 2019-06-25 | 2020-04-14 | 天津卡秀堡辉涂料有限公司 | Self-cleaning filter convenient to disassemble and assemble |
| CN211245666U (en) * | 2019-10-01 | 2020-08-14 | 上海康恒环境股份有限公司 | Leachate solid-liquid separation device |
| CN110672888A (en) * | 2019-10-22 | 2020-01-10 | 亳州文青测量技术有限公司 | Fixing and testing device for electronic device |
| CN211346391U (en) * | 2020-05-18 | 2020-08-25 | 海口宜坤环境技术有限公司 | Flue gas treatment device |
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Application publication date: 20210319 |
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