CN112844024A - Sulfur dioxide self-detection purification device - Google Patents
Sulfur dioxide self-detection purification device Download PDFInfo
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- CN112844024A CN112844024A CN202110039256.3A CN202110039256A CN112844024A CN 112844024 A CN112844024 A CN 112844024A CN 202110039256 A CN202110039256 A CN 202110039256A CN 112844024 A CN112844024 A CN 112844024A
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000746 purification Methods 0.000 title claims abstract description 50
- 238000001514 detection method Methods 0.000 title claims abstract description 41
- AXDJCCTWPBKUKL-UHFFFAOYSA-N 4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydron;chloride Chemical compound Cl.C1=CC(=N)C(C)=CC1=C(C=1C=CC(N)=CC=1)C1=CC=C(N)C=C1 AXDJCCTWPBKUKL-UHFFFAOYSA-N 0.000 claims description 22
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 15
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000004887 air purification Methods 0.000 abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ADZWSOLPGZMUMY-UHFFFAOYSA-M silver bromide Chemical compound [Ag]Br ADZWSOLPGZMUMY-UHFFFAOYSA-M 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
- G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Plasma & Fusion (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the field of air purification, and particularly relates to a sulfur dioxide self-detection purification device which comprises a purification box, wherein an absorption solution is filled in the purification box, an air outlet is formed in the side wall of the purification box, a vertically arranged rotating pipe is rotatably connected in the purification box, a plurality of uniformly distributed transverse pipes are fixedly communicated with the side wall of the rotating pipe, a plurality of air outlet holes are formed in the side wall of each transverse pipe, a horizontally arranged conveying pipe is arranged below the purification box, and one end of the conveying pipe is fixedly communicated with the rotating pipe. According to the invention, the central axes of the air outlets on the side walls of the transverse pipes are all horizontally arranged and all arranged facing the same direction, when air is discharged from the air outlets on the transverse pipes, because the air discharge directions of the air outlets are the same, the air flow pushes the absorption solution and also receives the reaction force of the absorption solution, the reaction force can push the transverse pipes to rotate in the purification box, the air can rotate and rise in the absorption solution, and can be in more efficient contact with the absorption solution, so that the purification effect is improved.
Description
Technical Field
The invention belongs to the field of air purification, and particularly relates to a sulfur dioxide self-detection purification device.
Background
Sulfur dioxide is a common atmospheric pollutant, a large amount of sulfur dioxide is often generated in industrial production and mineral production, acid rain is easily generated in the environment, the harmfulness is high, and the sulfur dioxide is also one of carcinogens published by international cancer research institutes of world health organization.
In-process at underground mineral exploitation, often can set up interim workplace in the underground, because underground workplace is general all comparatively closed, sulfur dioxide gas that the mineral exploitation in-process produced is difficult to spread to the environment, the personnel who carry out the work in the underground breathes the air that contains sulfur dioxide for a long time, cause great injury to the health easily, though install traditional air purification device in some underground workplaces, the pollution degree of purifying filter core is difficult to audio-visual showing, therefore often forget timely change easily, make purifying effect comparatively limited.
Therefore, we propose a sulfur dioxide self-detection purification device to solve the above problems.
Disclosure of Invention
The invention aims to provide a sulfur dioxide self-detection purification device capable of automatically adjusting according to the amount of sulfur dioxide, aiming at the problem that the pollution degree of most of the traditional air purification devices is difficult to visually show.
In order to achieve the purpose, the invention adopts the following technical scheme: a sulfur dioxide self-detection purifying device comprises a purifying box, wherein an absorption solution is filled in the purifying box, the side wall of the purifying box is provided with an air outlet, the purifying box is rotatably connected with a vertically arranged rotating pipe, the side wall of the rotating pipe is fixedly communicated with a plurality of uniformly distributed transverse pipes, the side wall of each transverse pipe is provided with a plurality of air outlet holes, a horizontally arranged conveying pipe is arranged below the purifying box, one end of the conveying pipe is fixedly communicated with the rotating pipe, a conveying fan is fixedly arranged in the pipeline at the other end of the conveying pipe, a transparent detecting box is arranged at the upper end of the conveying pipe, magenta solution is filled in the transparent detecting box, an elastic bag is fixedly connected to the inner bottom surface of the transparent detecting box, the color of the elastic bag is a yellow-blue mixed color, chemical powder decomposed by visible light is filled in the elastic bag, and the transparent detecting box is communicated with the purifying box through a, an automatic partition mechanism is arranged between the transparent detection box and the conveying pipe.
In the sulfur dioxide self-detection purification device, a heating device is fixedly arranged in the lower side wall of the transparent detection box.
In the sulfur dioxide self-detection purification device, the elastic bag is completely positioned below the liquid level of the fuchsin solution, one end of the communication pipe extends into the fuchsin solution, and the other end of the communication pipe extends to a position above the liquid level of the purification box.
In foretell sulfur dioxide self test purifier, automatic wall mechanism is including seting up the ring channel on the conveyer pipe inside wall, sliding connection has two grids in the ring channel, two hole on the grid sets up in the past, two equal fixedly connected with bellows between grid and the ring channel lateral wall, the bellows passes through pipe and elasticity bag intercommunication.
In foretell sulfur dioxide self test purifier, every the equal level setting of axis of a plurality of ventholes on violently managing the lateral wall, every violently manage a plurality of ventholes on the lateral wall and all set up towards same direction.
Compared with the prior art, the sulfur dioxide self-detection purifying device has the advantages that:
1. according to the invention, through arranging the transparent detection box filled with the fuchsin solution, after the air containing sulfur dioxide is conveyed into the purification box through the conveying pipe for purification, part of the purified air can be conveyed into the fuchsin solution in the transparent detection box through the communicating pipe, and the fuchsin solution can fade due to the sulfur dioxide, so that if the fuchsin solution is not changed, the purified air does not contain the sulfur dioxide, the purification effect is good, and if the fuchsin solution fades, the purified air still contains the sulfur dioxide, the purification effect of the absorption solution in the purification box can be automatically detected, so that the air can be timely replaced.
2. According to the invention, by arranging the partition mechanism, when the purified air does not contain sulfur dioxide, namely the color of the fuchsin solution does not change, the purification effect of the purification box is better, the purification process is continued, and the partition mechanism does not work;
when sulfur dioxide makes fuchsin solution fade in the air after being purified, the purifying effect of the absorption solution in the purifying box is relatively poor this moment, two grids in the partition mechanism can be close to each other under the pulling of bellows, and the holes on the two grids that are close to each other can be arranged in a staggered manner, thereby blocking whole conveyer pipe, can automatic shutdown work when whole device purifying effect is relatively poor promptly, can avoid the waste of the energy.
3. According to the invention, by arranging the elastic bag with the color of yellow-blue mixed color, as the three colors of red, yellow and blue can be superposed into black, when the purifying effect of the absorbing solution is good and the pinkish red solution cannot fade, the pinkish red solution and the elastic bag with the color of yellow-blue mixed color are superposed, the chemical powder in the elastic bag can be in a shading state and cannot react, and the partition mechanism cannot work;
when the fuchsin solution fades poorly when absorbing solution purifying effect, lacked red superimposed elastic bag and had certain transparency, the interior chemical powder of elastic bag visible light decomposition produced gas, and gas flows to in the bellows through the pipe and can make the length of bellows subtract short to make two blocks of grids be close to, the hole on two blocks of grids that are close to each other can crisscross arrange, blocks the conveyer pipe, stops to admit air, is convenient for in time change absorption solution.
4. In the invention, the central axes of the air outlets on the side wall of the transverse pipe are all horizontally arranged and all arranged facing the same direction, as shown in fig. 3, when air is discharged from the air outlets on the transverse pipe, because the air discharge directions of the air outlets are the same, the air flow can also receive the reaction force of the absorption solution when pushing the absorption solution, the reaction force can push the transverse pipes to rotate in the purification box, the air can rotate and rise in the absorption solution, and can be in more efficient contact with the absorption solution, thereby improving the purification effect.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment 1 of a sulfur dioxide self-detection purification device provided by the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural diagram of an embodiment 2 of a sulfur dioxide self-detection purification device provided by the invention.
In the figure, a purifying box 1, an air outlet 2, a rotating pipe 3, a transverse pipe 4, an air outlet 5, a conveying pipe 6, a conveying fan 7, a transparent detection box 8, an elastic bag 9, a communicating pipe 10, an annular groove 11, a grid 12, a corrugated pipe 13 and a guide pipe 14 are arranged.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1-2, a sulfur dioxide self-detection purification device comprises a purification box 1, wherein an absorption solution is contained in the purification box 1, the absorption solution can be a sodium hydroxide solution and can rapidly absorb sulfur dioxide which is an acidic gas, and an air outlet 2 is formed in the side wall of the purification box 1 and used for discharging purified air.
The 1 internal rotation of purifying box is connected with the swinging head 3 of vertical setting, fixed intercommunication has many evenly distributed's violently pipe 4 on the lateral wall of swinging head 3, a plurality of ventholes 5 have all been seted up on the every lateral wall of violently pipe 4, purifying box 1 below is equipped with the conveyer pipe 6 that the level set up, the one end and the fixed intercommunication of swinging head 3 of conveyer pipe 6, conveyer pipe 6 lets in the purifying box 1 with the air through a plurality of ventholes 5 in, fixed mounting has the delivery fan 7 in the pipeline of the 6 other end of conveyer pipe, delivery fan 7 plays the effect of delivery air.
The upper end of the conveying pipe 6 is provided with a transparent detection box 8, the transparent detection box 8 is filled with a fuchsin solution, the transparent detection box 8 enables a person to easily observe the inside of the transparent detection box from the outside, and it needs to be noted that a heating device is fixedly arranged in the lower side wall of the transparent detection box 8 and can heat the fuchsin solution in the transparent detection box 8, so that the fuchsin solution with faded can be recovered to be red, and the whole device can be repeatedly used.
Bottom surface fixed connection has elastic bag 9 in the transparent detection case 8, and elastic bag 9's colour is the yellow blue mixed color, contains the chemical powder that the light is decomposed in the elastic bag 9, for the silver bromide powder, the following reaction can take place for the silver bromide light: 2AgBr(s)＝＝＝＝2Ag(s)+Br2(q)The gas is generated by reaction, and the transparent detection box 8 is communicated with the purification box 1 through a communication pipe 10.
It should be noted that the elastic bag 9 is completely below the liquid level of the magenta solution, so that the color of the magenta solution can cover the whole elastic bag 9, one end of the communication pipe 10 extends to the position inside the magenta solution, and the other end of the communication pipe 10 extends to the position above the liquid level of the purification tank 1, as shown in fig. 1.
Be equipped with automatic wall mechanism between transparent detection case 8 and conveyer pipe 6, it is concrete, automatic wall mechanism is including offering the ring channel 11 on the conveyer pipe 6 inside wall, and sliding connection has two grids 12 in the ring channel 11, and the hole on two grids 12 sets up crisscross, equal fixedly connected with bellows 13 between two grids 12 and the 11 lateral walls of ring channel, and bellows 13 passes through pipe 14 and elasticity bag 9 intercommunication.
The invention can be illustrated by the following operating modes:
when the device is used, the absorption solution sodium hydroxide is contained in the purification box 1, the fuchsin solution is contained in the transparent detection box 8, air is driven to be discharged into the purification box 1 through the conveying pipe 6, the rotating pipe 3 and the plurality of air outlet holes 5 on the transverse pipe 4 by the rotation of the conveying fan 7, and the air is absorbed by the absorption solution in the purification box 1.
After the air containing sulfur dioxide is conveyed into the purification box 1 through the conveying pipe 6 for purification, part of the purified air can be conveyed into a fuchsin solution in the transparent detection box 8 through the communicating pipe 10, because the sulfur dioxide can enable the fuchsin solution to fade, and the three colors of red, yellow and blue can be superposed into black, when the purification effect of the absorption solution is good and the fuchsin solution cannot be faded, the fuchsin solution is superposed with the elastic bag 9 with the mixed color of yellow and blue, chemical powder in the elastic bag 9 can be in a shading state and cannot react, at the moment, the purified air does not contain the sulfur dioxide, the purification effect is good, and the purification process is continued.
If the fuchsin solution fades, it is indicated that sulfur dioxide is still contained in the purified air, the elastic bag 9 which is lack of red superposition has certain transparency, chemical powder in the elastic bag 9 can be decomposed by visible light to generate gas, the gas flows into the corrugated pipe 13 through the guide pipe 14 to shorten the length of the corrugated pipe 13, so that the two grids 12 are close to each other, holes in the two grids 12 which are close to each other can be arranged in a staggered mode, the conveying pipe 6 is blocked, air inlet is stopped, the absorption solution can be replaced in time, the purification effect of the absorption solution in the purification box 1 can be automatically detected, and timely replacement can be performed.
Example 2
As shown in fig. 3, the present embodiment is different from embodiment 1 in that: the central axis of the plurality of air outlet holes 5 on the side wall of each transverse pipe 4 is horizontally arranged, and the plurality of air outlet holes 5 on the side wall of each transverse pipe 4 are arranged facing to the same direction, as shown in fig. 3.
In this embodiment, when the air was discharged from violently managing a plurality of ventholes 5 on 4, because the exhaust direction of a plurality of ventholes 5 is the same, also can receive the reaction force of absorption solution when the air current promoted absorption solution, reaction force can promote many violently pipe 4 at the internal rotation of purifying box 1, and the air can rise at the absorption solution internal rotation, can with the more efficient contact of absorption solution, improve purifying effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The sulfur dioxide self-detection purifying device comprises a purifying box (1) and is characterized in that absorbing solution is filled in the purifying box (1), a gas outlet (2) is formed in the side wall of the purifying box (1), a vertically arranged rotating pipe (3) is rotationally connected in the purifying box (1), a plurality of uniformly distributed transverse pipes (4) are fixedly communicated with the side wall of the rotating pipe (3), a plurality of gas outlet holes (5) are formed in the side wall of each transverse pipe (4), a horizontally arranged conveying pipe (6) is arranged below the purifying box (1), one end of the conveying pipe (6) is fixedly communicated with the rotating pipe (3), a conveying fan (7) is fixedly installed in the pipeline at the other end of the conveying pipe (6), a transparent detection box (8) is arranged at the upper end of the conveying pipe (6), and fuchsin solution is filled in the transparent detection box (8), the transparent detection box is characterized in that an elastic bag (9) is fixedly connected to the inner bottom surface of the transparent detection box (8), the color of the elastic bag (9) is a yellow-blue mixed color, chemical powder decomposed by visible light is contained in the elastic bag (9), the transparent detection box (8) and the purification box (1) are communicated through a communicating pipe (10), and an automatic partition mechanism is arranged between the transparent detection box (8) and the conveying pipe (6).
2. The sulfur dioxide self-detection purification device as claimed in claim 1, wherein a heating device is fixedly installed in the lower side wall of the transparent detection box (8).
3. The sulfur dioxide self-detection purification device according to claim 1, wherein the elastic bag (9) is completely below the liquid level of the fuchsin solution, one end of the communication pipe (10) extends into the fuchsin solution, and the other end of the communication pipe (10) extends to the position above the liquid level of the purification box (1).
4. The sulfur dioxide self-detection purification device according to claim 1, wherein the automatic partition mechanism comprises an annular groove (11) formed in the inner side wall of the conveying pipe (6), two grids (12) are slidably connected in the annular groove (11), holes in the two grids (12) are staggered, a corrugated pipe (13) is fixedly connected between the two grids (12) and the side wall of the annular groove (11), and the corrugated pipe (13) is communicated with the elastic bag (9) through a conduit (14).
5. The sulfur dioxide self-detection purification device as claimed in claim 1, wherein the central axis of the plurality of air outlet holes (5) on the side wall of each transverse pipe (4) is horizontally arranged, and the plurality of air outlet holes (5) on the side wall of each transverse pipe (4) are arranged facing to the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039256.3A CN112844024A (en) | 2021-01-13 | 2021-01-13 | Sulfur dioxide self-detection purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039256.3A CN112844024A (en) | 2021-01-13 | 2021-01-13 | Sulfur dioxide self-detection purification device |
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| CN112844024A true CN112844024A (en) | 2021-05-28 |
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| CN202110039256.3A Pending CN112844024A (en) | 2021-01-13 | 2021-01-13 | Sulfur dioxide self-detection purification device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452788A (en) * | 2022-03-17 | 2022-05-10 | 江苏桂铭机械有限公司 | Sweetener with tail end detects |
| CN116116199A (en) * | 2023-04-04 | 2023-05-16 | 山西鹏飞焦化绿色发展有限公司 | Coking flue gas desulfurization dust removal device and use method thereof |
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| CN110756005A (en) * | 2019-10-31 | 2020-02-07 | 翁连清 | Harmful gas absorbs purifier for underground construction |
| CN112103038A (en) * | 2020-09-14 | 2020-12-18 | 冷辉 | Sunshade heat sink for transformer |
| CN112121607A (en) * | 2020-09-15 | 2020-12-25 | 南京将犀网络科技有限公司 | Use environmental protection type industrial waste gas treatment auxiliary device of thing networking engineering |
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2021
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050118363A1 (en) * | 2003-09-26 | 2005-06-02 | Fuji Photo Film Co., Ltd. | Heat transfer recording material |
| CN110320206A (en) * | 2019-06-27 | 2019-10-11 | 北控滨南康健(重庆)环境工程有限公司 | The ventilating deodorizing system and method for wisdom public lavatory |
| CN110756005A (en) * | 2019-10-31 | 2020-02-07 | 翁连清 | Harmful gas absorbs purifier for underground construction |
| CN112103038A (en) * | 2020-09-14 | 2020-12-18 | 冷辉 | Sunshade heat sink for transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452788A (en) * | 2022-03-17 | 2022-05-10 | 江苏桂铭机械有限公司 | Sweetener with tail end detects |
| CN114452788B (en) * | 2022-03-17 | 2023-02-14 | 江苏桂铭机械有限公司 | Desulfurization equipment with tail end detects |
| CN116116199A (en) * | 2023-04-04 | 2023-05-16 | 山西鹏飞焦化绿色发展有限公司 | Coking flue gas desulfurization dust removal device and use method thereof |
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Application publication date: 20210528 |
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