CN114797453A - Environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and use method thereof - Google Patents
Environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and use method thereof Download PDFInfo
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- CN114797453A CN114797453A CN202210407098.7A CN202210407098A CN114797453A CN 114797453 A CN114797453 A CN 114797453A CN 202210407098 A CN202210407098 A CN 202210407098A CN 114797453 A CN114797453 A CN 114797453A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
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Abstract
The invention discloses an environment-friendly utilization device of volatile organic compounds in rare earth smelting and a use method thereof, and the environment-friendly utilization device comprises a body, wherein the body is in a transparent box shape and has an internal cavity, the upper end of the body is provided with an air inlet for introducing mixed gas of P-507, sulfonated kerosene, naphthenic acid and volatile hydrochloric acid, an air suction pump is arranged in the air inlet, the mixed gas is introduced into the body through the air suction pump by the air inlet, and the body is also internally provided with a photocatalytic oxidation reaction device and a neutralization reaction and saponification reaction device from top to bottom respectively. The invention treats and decomposes the volatile substances into water, carbon dioxide and soap basic substances by using the photocatalytic oxidation device and the neutralization reaction and saponification reaction device, thereby improving the diversity of derivatives in the whole rare earth smelting and further improving the economic value of the rare earth smelting.
Description
Technical Field
The invention relates to the technical field of rare earth smelting, in particular to environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and a using method thereof.
Background
Rare earth smelting is a set of process flow for preparing single compounds, metals and rare earth products with different purities by using rare earth concentrate as a raw material through working procedures of decomposition, compound preparation, grouping separation and the like, and in rare earth smelting, naphthenic acid, sulfonated kerosene, p-507, concentrated hydrochloric acid and other liquids with stronger volatility and toxicity are required to be used as an extracting agent or a dissolving agent and the like in rare earth smelting, so that volatile gases formed by the toxic liquids with stronger volatility need to be treated in the aspect of environmental protection, new products can be derived after the volatile gases are treated, the overall economic value of the rare earth smelting can be improved, and the volatile substances can be treated to prevent the volatile substances from damaging the bodies of workers on one hand and prevent the volatile substances from being dissipated into the air to pollute the atmosphere on the other hand.
Based on the design, the design provides the environment-friendly utilization equipment of the volatile organic compounds in the rare earth smelting and the use method thereof.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and a using method thereof.
In order to achieve the purpose of the invention, the invention provides an environment-friendly utilization device of volatile organic compounds in rare earth smelting and a using method thereof.
Further, the photocatalytic oxidation reaction device including set up in the titanium dioxide reaction plate and the centre gripping from top to bottom of the inside upside of body two filter plates of titanium dioxide reaction plate, the filter plate is the perforated plate, and the filter plate upside that wherein is located the upper end still is equipped with residue clearance structure.
Further, the residue cleaning structure comprises a lead screw main shaft arranged at the left end of the body, the lead screw main shaft penetrates through a bearing at the upper end of the left side of the body, the upper end of the lead screw main shaft is also connected with a first ball sliding block in a sliding manner, a limiting plate is arranged at the top of the upper end of the lead screw main shaft, a first bevel gear is fixedly connected at the lower end of the lead screw main shaft, the first bevel gear is meshed with a second bevel gear, the second bevel gear extends rightwards to form a screw auxiliary shaft, the screw auxiliary shaft is rotationally connected inside the body, a second ball sliding block is also connected on the screw auxiliary shaft in a sliding way, the upper end of the second ball sliding block extends to the right to form a top plate, the lower end of the second ball sliding block is also hinged with a shovel plate to the right, the upper end right side of the body inside is equipped with the residue discharge port, be connected with transparent cover through the torsional spring is articulated on the residue discharge port.
Further, the photocatalytic oxidation reaction device further comprises a convex glass plate and a residue collecting tank, wherein the convex glass plate is attached to the left end and the right end of the body, and the residue collecting tank is arranged on the right side of the lower end of the body.
Further, neutralization reaction and saponification reaction unit include sliding connection in the slide of the inside lower extreme of body, the lower extreme right side of slide is equipped with the inlet, the lower extreme left side of slide is equipped with the rectangle breach, the body passes through the slide will the lower extreme of body is sealed, and is located the slide upper end this internal splendid attire has sodium hydroxide solution, the lower extreme of slide is equipped with the trapezoidal piece, the inclined plane of trapezoidal piece lower extreme contacts with the kicking block that the telescopic link right-hand member of pneumatic cylinder set up, the inclined plane of kicking block right-hand member still is equipped with a plurality of roller.
Furthermore, neutralization reaction and saponification reaction unit still including set up in the evacuation mouth on body downside right side, the lower extreme slope of leakage fluid dram is provided with the guide plate, the upper end of guide plate is equipped with the rectangle arch.
Further, the neutralization reaction and saponification reaction device further comprises a waste liquid collecting tank arranged on the left side of the lower end of the body.
Further, the use method of the device comprises the following steps: s1, introducing mixed gas consisting of p-507, naphthenic acid, sulfonated kerosene and volatile hydrochloric acid into the body; s2: the mixed gas enters the photocatalytic oxidation reaction device, and organic matter gas in the mixed gas is subjected to photocatalytic oxidation to generate carbon dioxide and water; s3: residual organic matter gas and inorganic matter in the residual mixed gas continuously enter a neutralization reaction and saponification reaction device, and the residual organic matter and inorganic matter in the mixed gas respectively perform saponification reaction and neutralization reaction with a sodium hydroxide solution in the neutralization reaction and saponification reaction device to generate carboxylate, alcohol, water and inorganic salt; s4: and discharging carbon dioxide generated by the reaction through the emptying port, and allowing the mixture of the carboxylate, the alcohol, the water and the inorganic salt to flow into a waste liquid collecting tank through the emptying port for further treatment to generate soap.
The invention has the beneficial effects that:
the invention relates to an environment-friendly utilization device of volatile organic compounds in rare earth smelting and a use method thereof, in particular to a device for utilizing volatile organic compounds in rare earth smelting, which is characterized in that mixed gas formed by naphthenic acid, sulfonated kerosene, p-507 and volatile hydrochloric acid is introduced into the design, and the mixed gas is promoted to respectively generate saponification reaction, neutralization reaction and photocatalytic oxidation reaction in the design, wherein carbon dioxide and water generated in the photocatalytic oxidation reaction are dissolved in the slightly water-soluble carbon dioxide to form acid radical ions, thereby generating neutralization reaction heat release and reversely promoting saponification reaction, and the photocatalytic oxidation reaction is an exothermic process, thereby further promoting saponification reaction to form carboxylate and alcohol, and thus the design enables rare earth smelting to form more valuable derivatives while purifying volatile organic matters, thereby improving the benefit of rare earth smelting;
the design is also provided with a convex glass plate, so that light rays are distributed on the titanium dioxide reaction plate more uniformly, the photocatalytic oxidation reaction is more sufficient, and in order to prevent rare earth impurities mixed in mixed gas from blocking the filter plate, the design is also provided with a residue cleaning structure, a user only needs to downwards pull the first ball slide block at regular time, a lead screw main shaft rotates, a lead screw auxiliary shaft is driven to rotate through the meshing of a first bevel gear and a second bevel gear, so that the second ball slide block is driven to move rightwards, a shovel plate moves rightwards along the filter plate and shovels the blocked impurities on the filter plate, until a top plate at the upper end of the second ball slide block jacks up the transparent cover plate and the shovel plate completely extends out of a residue discharge port, and naturally downwards overturns under the action of gravity to pour the impurities into a residue collecting tank, so that the service life of the design is greatly prolonged;
in addition, the design is also provided with a sliding plate and a hydraulic cylinder which are matched, automatic liquid drainage is realized by the inclined plane pushing, the exposed upper end of the sliding plate is arranged, and a user can conveniently collect the reacted derivatives through a shovel. .
Drawings
FIG. 1 is a schematic cross-sectional view of the main structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a schematic flow chart of the working principle of the present invention.
In the figure: 1. an air inlet; 2. a convex glass plate; 3. a body; 301. a transparent cover plate; 302. a lead screw spindle; 303. a first ball slider; 304. a bearing; 305. a first bevel gear; 306. a second bevel gear; 307. a second ball slider; 308. a shovel plate; 309. a screw countershaft; 310. a top plate; 311. a limiting plate; 312. a residue discharge port; 4. filtering the plate; 5. a titanium dioxide reaction plate; 6. a sodium hydroxide solution; 7. a slide plate; 701. a rectangular notch; 702. a liquid inlet; 8. a trapezoidal block; 9. a top block; 901. a roll shaft; 10. a hydraulic cylinder; 11. a baffle; 1101. a rectangular protrusion; 12. a waste liquid collecting tank; 13. a residue collecting tank; 14. an air pump; 15. and (4) emptying the air.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
example 1: an environment-friendly utilization device of volatile organic compounds in rare earth smelting and a use method thereof are shown in figures 1 to 4.
The utility model provides an environmental protection utilization equipment of volatile organic compounds in tombarthite is smelted and application method thereof, includes body 3, body 3 is transparent box form and inside cavity, the upper end of body 3 is equipped with air inlet 1 and is used for leading-in P-507, sulfonated kerosene, naphthenic acid, the mist of volatile hydrochloric acid, be equipped with aspiration pump 14 in the air inlet 1, just air inlet 1 passes through aspiration pump 14 is leading-in with mist in the body 3, still be equipped with photocatalytic oxidation reaction device, neutralization reaction and saponification reaction unit in the body 3 from top to bottom respectively.
Preferably, the photocatalytic oxidation reaction device including set up in the inside upside of body 3 titanium dioxide reaction plate 5 and centre gripping from top to bottom two filter plates 4 of titanium dioxide reaction plate 5, filter plate 4 is the perforated plate, and wherein the 4 upside of filter plate that are located the upper end still are equipped with residue clearance structure.
Preferably, the residue cleaning structure comprises a lead screw main shaft 302 arranged at the left end of the body 3, the lead screw main shaft 302 passes through a bearing 304 at the upper end of the left side of the body 3, the upper end of the lead screw main shaft 302 is also connected with a first ball slide block 303 in a sliding manner, a limit plate 311 is further arranged at the top of the upper end of the lead screw main shaft 302, the lower end of the lead screw main shaft 302 is fixedly connected with a first bevel gear 305, the first bevel gear 305 is meshed with a second bevel gear 306, a lead screw auxiliary shaft 309 extends rightwards from the second bevel gear 306, the lead screw auxiliary shaft 309 is rotatably connected inside the body 3, a second ball slide block 307 is further connected onto the lead screw auxiliary shaft 309 in a sliding manner, a top plate 310 extends rightwards from the upper end of the second ball slide block 307, the lower end of the second ball slide block 307 is also hinged to the right to be connected with a shovel plate 308, and a residue discharge port 312 is arranged at the right side of the upper end inside the body 3, the residue outlet 312 is hinged with a transparent cover plate 301 through a torsion spring.
Preferably, the photocatalytic oxidation reaction device further comprises a convex glass plate 2 attached to the left end and the right end of the body 3 and a residue collecting tank 13 on the right side of the lower end of the body 3.
Preferably, the neutralization reaction and saponification reaction device comprises a sliding plate 7 connected to the lower end inside the body 3 in a sliding manner, a liquid inlet 702 is formed in the right side of the lower end of the sliding plate 7 and used for leading in a sodium hydroxide solution 6, a rectangular notch 701 is formed in the left side of the lower end of the sliding plate 7, the body 3 is sealed at the lower end of the body 3 through the sliding plate 7 and located at the upper end of the sliding plate 7, the sodium hydroxide solution 6 is contained in the body 3, a trapezoidal block 8 is arranged at the lower end of the sliding plate 7, an inclined plane at the lower end of the trapezoidal block 8 is in contact with an ejector block 9 arranged at the right end of a telescopic rod of a hydraulic cylinder 10, and a plurality of roll shafts 901 are further arranged on the inclined plane at the right end of the ejector block 9.
Preferably, the neutralization reaction and saponification reaction device further comprises a drain opening 15 arranged on the right side of the lower side of the body 3, a guide plate 11 is obliquely arranged at the lower end of the drain opening, and a rectangular protrusion 1101 is arranged at the upper end of the guide plate 11.
Preferably, the neutralization reaction and saponification reaction device further comprises a waste liquid collecting tank 12 arranged on the left side of the lower end of the body 3.
Preferably, the use method of the device comprises the following steps:
s1, introducing mixed gas consisting of p-507, naphthenic acid, sulfonated kerosene and volatile hydrochloric acid into the body 3;
s2: the mixed gas enters the photocatalytic oxidation reaction device, and organic matter gas in the mixed gas is subjected to photocatalytic oxidation to generate carbon dioxide and water;
s3: residual organic gas and inorganic matter in the residual mixed gas continuously enter a neutralization reaction and saponification reaction device, and the residual organic matter and the inorganic matter in the mixed gas respectively perform saponification reaction and neutralization reaction with a sodium hydroxide solution 6 in the neutralization reaction and saponification reaction device to generate carboxylate, alcohol, water and inorganic salt;
s4: carbon dioxide generated by the reaction is discharged through the evacuation port 15, and a mixture of carboxylate, alcohol, water and inorganic salt flows into the waste liquid collecting tank 12 from the evacuation port 15 to be further processed to generate soap.
Specifically, the design is as follows:
firstly, introducing a mixed gas composed of p-507, naphthenic acid, sulfonated kerosene and volatile hydrochloric acid into the body 3 through the air extraction pump 14, then introducing the mixed gas into a photocatalytic oxidation device arranged in the body 3 for photocatalytic oxidation reaction, generating carbon dioxide and water through photocatalytic oxidation reaction of organic substances in the mixed gas, then continuously introducing residual gas in the mixed gas into the neutralization reaction and saponification reaction device, respectively reacting the residual gas with the sodium hydroxide solution 6 in the neutralization reaction and saponification reaction device to respectively generate carboxylate, alcohol, water and inorganic salt as the volatile hydrochloric acid and the residual organic substances mainly remain in the residual gas, finally discharging the reacted mixed solution and carbon dioxide through the discharge port 15, and finally scraping the residual solid compound on the sliding plate 7 by a scraper and feeding the solid compound together with the mixed solution Further treatment is carried out to produce soap, thereby improving the additional benefit of rare earth smelting.
In addition, the left side and the right side of the body 3 are respectively provided with the convex glass plates 2, so that the light is more uniformly distributed on the titanium dioxide reaction plate 5, the photocatalytic oxidation reaction is more sufficient, and in order to prevent rare earth impurities mixed in the mixed gas from blocking the filter plate 4, the design is also provided with a residue cleaning structure, a user only needs to downwards pull the first ball slide block 303 at regular time, so that the lead screw main shaft 302 rotates, the lead screw auxiliary shaft 309 is driven to rotate through the meshing of the first bevel gear 305 and the second bevel gear 306, the second ball slide block 307 is driven to move rightwards, the shovel plate 308 moves rightwards along the filter plate 4 and shovels the blocked impurities on the filter plate 4 until the top plate 310 at the upper end of the second ball slide block 307 jacks up the transparent cover plate 301 and enables the shovel plate 308 to completely extend out of the residue discharge port 312, and naturally turns downwards under the action of gravity to pour the impurity residues into the residue collecting tank 13, thereby improving the service life of the design greatly.
Furthermore, when liquid is discharged, the top block 9 is connected through a telescopic rod of the hydraulic cylinder 10, a plurality of rollers 901 are arranged on the upper inclined surface of the top block 9, when the telescopic rod is ejected towards the right side, the rollers 901 are in contact with the trapezoidal blocks 8 below the sliding plate 7 and jack the sliding plate 7 upwards, conversely, when the telescopic rod is retracted towards the left side, the sliding plate 7 slides downwards and the rectangular notch 701 at the lower end of the left side of the sliding plate 7 is clamped with the rectangular protrusion 1101 on the guide plate 11, so that the sliding plate 7 is supported by the guide plate 11, the reacted mixed solution can flow out conveniently, and a user can scrape out residual solid compounds on the sliding plate 7 conveniently.
The embodiments of the present invention are disclosed as the preferred embodiments, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention and make various extensions and changes without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides an environmental protection of volatile organic compounds in tombarthite is smelted and is utilized equipment, includes the body, its characterized in that, the body is transparent box form and inside cavity, the upper end of body is equipped with the gas inlet and is used for leading-in P-507, sulfonated kerosene, naphthenic acid, the mist of volatile hydrochloric acid, be equipped with the aspiration pump in the gas inlet, just the gas inlet passes through the aspiration pump is leading-in with mist this is internal, this is internal still from top to bottom still is equipped with photocatalytic oxidation reaction device, neutralization reaction and saponification reaction unit respectively.
2. The apparatus of claim 1, wherein the photocatalytic oxidation reaction device comprises a titania reaction plate disposed at an upper side inside the body and two filter plates for holding the titania reaction plate up and down, the filter plates are porous plates, and a residue cleaning structure is disposed at an upper side of the filter plate at an upper end.
3. The apparatus of claim 2, wherein the residue cleaning structure comprises a screw spindle disposed at the left end of the main body, the screw spindle passes through a bearing at the upper end of the left side of the main body, a first ball slider is slidably connected to the upper end of the screw spindle, a limiting plate is further disposed at the top of the upper end of the screw spindle, a first bevel gear is fixedly connected to the lower end of the screw spindle, the first bevel gear is engaged with a second bevel gear, a screw sub-shaft extends rightwards, the screw sub-shaft is rotatably connected to the inside of the main body, a second ball slider is slidably connected to the screw sub-shaft, a top plate extends rightwards from the upper end of the second ball slider, a shovel plate is also hingedly connected to the lower end of the second ball slider rightwards, and a residue discharge port is disposed at the right side of the upper end of the inside of the main body, and the residue discharge port is hinged with a transparent cover plate through a torsion spring.
4. The apparatus for environmentally friendly utilization of volatile organic compounds in rare earth smelting according to claim 2, wherein the photocatalytic oxidation reaction device further comprises convex glass plates attached to the left and right ends of the main body and a residue collecting tank attached to the right side of the lower end of the main body.
5. The environment-friendly utilization equipment of volatile organic compounds in rare earth smelting as claimed in claim 1, wherein the neutralization reaction and saponification reaction device comprises a sliding plate slidably connected to the lower end of the inside of the body, a rectangular notch is formed in the left side of the lower end of the sliding plate, the body seals the lower end of the body through the sliding plate, a sodium hydroxide solution is contained in the body located at the upper end of the sliding plate, a trapezoidal block is arranged at the lower end of the sliding plate, an inclined surface at the lower end of the trapezoidal block is in contact with an ejector block arranged at the right end of a telescopic rod of a hydraulic cylinder, and a plurality of roller shafts are further arranged on the inclined surface at the right end of the ejector block.
6. The environmental protection utilization equipment of volatile organic compounds in rare earth smelting according to claim 5, characterized in that: the neutralization reaction and saponification reaction device further comprises an evacuation port arranged on the right side of the lower side of the body, a guide plate is obliquely arranged at the lower end of the liquid discharge port, and a rectangular protrusion is arranged at the upper end of the guide plate.
7. The apparatus for environmentally friendly utilization of volatile organic compounds in rare earth smelting according to claim 5, wherein the neutralization and saponification reaction device further comprises a waste liquid collecting tank disposed on the left side of the lower end of the body.
8. The use method of the environment-friendly utilization equipment of the volatile organic compounds in the rare earth smelting, which relates to any one of claims 1 to 7, is characterized by comprising the following steps: s1, introducing mixed gas consisting of p-507, naphthenic acid, sulfonated kerosene and volatile hydrochloric acid into the body; s2: the mixed gas enters the photocatalytic oxidation reaction device, and organic matter gas in the mixed gas is subjected to photocatalytic oxidation to generate carbon dioxide and water; s3: residual organic matter gas and inorganic matter in the residual mixed gas continuously enter a neutralization reaction and saponification reaction device, and the residual organic matter and inorganic matter in the mixed gas respectively perform saponification reaction and neutralization reaction with a sodium hydroxide solution in the neutralization reaction and saponification reaction device to generate carboxylate, alcohol, water and inorganic salt; s4: and discharging carbon dioxide generated by the reaction through the emptying port, and allowing the mixture of the carboxylate, the alcohol, the water and the inorganic salt to flow into a waste liquid collecting tank through the emptying port for further treatment to generate soap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210407098.7A CN114797453A (en) | 2022-04-18 | 2022-04-18 | Environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210407098.7A CN114797453A (en) | 2022-04-18 | 2022-04-18 | Environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and use method thereof |
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| CN114797453A true CN114797453A (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210407098.7A Pending CN114797453A (en) | 2022-04-18 | 2022-04-18 | Environment-friendly utilization equipment for volatile organic compounds in rare earth smelting and use method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1336247A (en) * | 2000-07-27 | 2002-02-20 | 罗建民 | Apparatus for treating cooking fume |
| CN206996279U (en) * | 2017-07-28 | 2018-02-13 | 西安富康空气净化设备工程有限公司 | A kind of hybrid induction stream spray odor removal |
| CN211365712U (en) * | 2019-11-01 | 2020-08-28 | 哈尔滨工大中奥生物工程有限公司 | Buffer tank for blueberry anthocyanin preparation |
| CN214159144U (en) * | 2020-11-25 | 2021-09-10 | 杭州爱净环境工程有限公司 | Municipal administration sewage pump station foul smell processing apparatus |
| CN215585576U (en) * | 2021-05-27 | 2022-01-21 | 江苏安可捷环保科技有限公司 | A filter cleaning device for waste water treatment |
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2022
- 2022-04-18 CN CN202210407098.7A patent/CN114797453A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336247A (en) * | 2000-07-27 | 2002-02-20 | 罗建民 | Apparatus for treating cooking fume |
| CN206996279U (en) * | 2017-07-28 | 2018-02-13 | 西安富康空气净化设备工程有限公司 | A kind of hybrid induction stream spray odor removal |
| CN211365712U (en) * | 2019-11-01 | 2020-08-28 | 哈尔滨工大中奥生物工程有限公司 | Buffer tank for blueberry anthocyanin preparation |
| CN214159144U (en) * | 2020-11-25 | 2021-09-10 | 杭州爱净环境工程有限公司 | Municipal administration sewage pump station foul smell processing apparatus |
| CN215585576U (en) * | 2021-05-27 | 2022-01-21 | 江苏安可捷环保科技有限公司 | A filter cleaning device for waste water treatment |
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