CN110201507A - A kind of smoke absorption technique based on acid ammonia treatment technology - Google Patents
A kind of smoke absorption technique based on acid ammonia treatment technology Download PDFInfo
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- CN110201507A CN110201507A CN201910384173.0A CN201910384173A CN110201507A CN 110201507 A CN110201507 A CN 110201507A CN 201910384173 A CN201910384173 A CN 201910384173A CN 110201507 A CN110201507 A CN 110201507A
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- flue gas
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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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
- B01D53/343—Heat recovery
-
- 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
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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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
- B01D53/75—Multi-step processes
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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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to fume treatment fields, especially a kind of smoke absorption technique based on acid ammonia treatment technology, flue gas cannot be handled well for existing, the problem of cannot utilizing to the heat in flue gas, it is proposed that following scheme comprising following steps: one evaporation tank S1: is set in the bottom of purifying column, helix tube is arranged in the outside of evaporation tank, one end of helix tube is gas inlet, and the other end of helix tube is exhanst gas outlet, and exhanst gas outlet is connected to purifying column；S2: flue gas enters in helix tube through gas inlet, and flue gas flows in helix tube, preheats the heat in flue gas to evaporation tank, flue gas enters in purifying column through exhanst gas outlet；S3: the ammonium hydroxide haptoreaction in flue gas and purifying column, the present invention can be good at handling flue gas, while the heat in flue gas can be used, and avoid heat from being lost in vain, the consumption to economize on resources.
Description
Technical field
The present invention relates to fume treatment technical field more particularly to a kind of smoke absorption works based on acid ammonia treatment technology
Skill.
Background technique
The main reason for flue gas is the mixture of gas and flue dust, is pollution residential block atmosphere.The ingredient of flue gas is very complicated,
It include that water vapour, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbon and nitrogen oxidation are closed in gas
Object etc., flue dust include the ash content of fuel, coal grain, oil droplet and high-temperature split product etc., are on the one hand depended on to the harm of human body
On the other hand composition, concentration, duration and the site of action of polluter depend on the sensibility of human body.Flue gas concentration is high
It is that can cause acute poisoning, shows as cough, pharyngalgia, asthma uncomfortable in chest, headache, eyes stung etc., serious person can be dead.It is most common
Be slow poisoning, cause stimulate respiratory mucosa lead to chronic bronchitis etc..In addition it is strong still to contain BaP etc. for flue gas
Carcinogen contains a large amount of poisonous gases (CO, CO2) in flue gas, when the CO2 content in air arrives greatly 7-10%, several minutes
It will make one to lose consciousness, so that dead.If the content of CO reaches 1% in air, people's death by poisoning can be caused by 1-2 minutes
It dies, numerical value required for the oxygen content in flue gas is lower than people's physiology normally, when oxygen amount is reduced to 15%, the muscle activity energy of people
Power decline, for oxygen content in 10%-14%, people understands weakness of limbs, distinguishes unclear direction, when oxygen content drops to 6%-10%, people's meeting
It falls in a swoon, when oxygen content is lower than 6%, people's short time can be dead, and the suspended particulates in flue gas are also harmful, partial size in suspended particulate
Lesser floating dust due to gas diffusion act on, can enter human lung and stick and be gathered in alveolar wall, complete can be sent with blood to
Body causes respiratory disease.
In the prior art, flue gas cannot be handled well, the heat in flue gas cannot be utilized, therefore I
Propose a kind of smoke absorption technique based on acid ammonia treatment technology, for solving the above problems.
Summary of the invention
It, cannot be to cigarette the purpose of the present invention is to solve existing in the prior art well to handle flue gas
The shortcomings that heat in gas is utilized, and a kind of smoke absorption technique based on acid ammonia treatment technology proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of smoke absorption technique based on acid ammonia treatment technology, comprising the following steps:
S1: one evaporation tank is set in the bottom of purifying column, helix tube is arranged in the outside of evaporation tank, and one end of helix tube is
The other end of gas inlet, helix tube is exhanst gas outlet, and exhanst gas outlet is connected to purifying column；
S2: flue gas enters in helix tube through gas inlet, and flue gas flows in helix tube, makes the heat in flue gas to steaming
Hair case is preheated, and flue gas enters in purifying column through exhanst gas outlet；
S3: the ammonium hydroxide haptoreaction in flue gas and purifying column absorbs the sulfur dioxide in flue gas, forms ammonium sulfate；
S4: ammonium sulfate being imported into evaporation tank and carries out heating evaporation, and ammonium sulfate crystallizes precipitation, sulfuric acid from solution
Ammonium is filtered, dry, and ammonium sulfate is made；
S5: the flue gas after reacting with ammonia water is through demister demisting, and then gas is discharged after active carbon filters, completion pair
The absorption of flue gas.
Preferably, in the S1, one Rose Box is set in the gas inlet of helix tube, strainer, filter are equipped in Rose Box
Net is filtered the dust in flue gas.
Preferably, the strainer is mounted in a fixed frame, and fixed frame is detachably arranged in Rose Box.
Preferably, the two sides of the Rose Box are respectively equipped with air inlet and air outlet, the flue gas of gas outlet and helix tube into
Mouth connection, air inlet are equipped with an exhaust fan, and exhaust fan is used to aspirate flue gas, accelerate the circulation efficiency of flue gas.
Preferably, in the S5, active carbon is placed in installs case, and installs case is made of flase floor, is opened up on flase floor more
A air hole, purifying column are equipped with flue gas emission mouth, are fixedly mounted a placing box on flue gas emission mouth, the side of placing box with
The connection of flue gas emission mouth, the other side of placing box offer through-hole, case lid are hinged at the top of placing box, and installs case is placed on placement
In case, installs case can be picked and placed by opening case lid, it is convenient that active carbon in installs case is replaced.
Preferably, multiple atomizers are equipped in the S1, in purifying column, liquid ammonia becomes gas ammonia through evaporation, gas ammonia with
Water is mixed into ammonium hydroxide, is sprayed by atomizer to ammonium hydroxide.
Preferably, in the S1, the material of helix tube is copper, and the thermal capacitance of copper is big, and heat absorption is fast, can be preferably in flue gas
Heat absorbed.
Preferably, in the S1, helix tube prepares a copper pipe in setting first, and the shape of evaporation tank is cylinder,
Copper pipe processing is spiral, so that copper pipe is coiled in the outside of evaporation tank.
In the present invention, a kind of smoke absorption technique based on acid ammonia treatment technology is set by the bottom in purifying column
An evaporation tank is set, helix tube is arranged in the outside of evaporation tank, and flue gas enters in helix tube through gas inlet, and flue gas is in helix tube
Interior flowing preheats the heat in flue gas to evaporation tank, can utilize to the heat in flue gas, avoid heat in vain
It is lost；
One Rose Box is set by the gas inlet in helix tube, is equipped with strainer in Rose Box, strainer is in flue gas
Dust is filtered, and dust can be prevented to be accumulated in helix tube；
The present invention can be good at handling flue gas, while the heat in flue gas can be used, and avoid heat
Amount is lost in vain, the consumption to economize on resources.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment one
A kind of smoke absorption technique based on acid ammonia treatment technology, comprising the following steps:
S1: one evaporation tank is set in the bottom of purifying column, helix tube is arranged in the outside of evaporation tank, and one end of helix tube is
The other end of gas inlet, helix tube is exhanst gas outlet, and exhanst gas outlet is connected to purifying column；
S2: flue gas enters in helix tube through gas inlet, and flue gas flows in helix tube, makes the heat in flue gas to steaming
Hair case is preheated, and flue gas enters in purifying column through exhanst gas outlet；
S3: the ammonium hydroxide haptoreaction in flue gas and purifying column absorbs the sulfur dioxide in flue gas, forms ammonium sulfate；
S4: ammonium sulfate being imported into evaporation tank and carries out heating evaporation, and ammonium sulfate crystallizes precipitation, sulfuric acid from solution
Ammonium is filtered, dry, and ammonium sulfate is made；
S5: the flue gas after reacting with ammonia water is through demister demisting, and then gas is discharged after active carbon filters, completion pair
The absorption of flue gas.
In the present invention, in S1, one Rose Box is set in the gas inlet of helix tube, is equipped with strainer, strainer in Rose Box
Dust in flue gas is filtered.
In the present invention, strainer is mounted in a fixed frame, and fixed frame is detachably arranged in Rose Box, can be in order to
Disassembly, cleaning replacement is carried out to strainer.
In the present invention, the two sides of Rose Box are respectively equipped with air inlet and air outlet, the gas inlet of gas outlet and helix tube
Connection, air inlet are equipped with an exhaust fan, and exhaust fan is used to aspirate flue gas, accelerate the circulation efficiency of flue gas.
In the present invention, in S5, active carbon is placed in installs case, and installs case is made of flase floor, is opened up on flase floor multiple
Air hole, purifying column are equipped with flue gas emission mouth, a placing box, the side of placing box and cigarette are fixedly mounted on flue gas emission mouth
The connection of gas discharge outlet, the other side of placing box offer through-hole, case lid are hinged at the top of placing box, and installs case is placed on placing box
It is interior, installs case can be picked and placed by opening case lid, it is convenient that active carbon in installs case is replaced.
In the present invention, in S1, multiple atomizers are equipped in purifying column, liquid ammonia becomes gas ammonia, gas ammonia and water through evaporation
It is mixed into ammonium hydroxide, ammonium hydroxide is sprayed by atomizer.
In the present invention, in S1, the material of helix tube is copper, and the thermal capacitance of copper is big, and heat absorption is fast, can be preferably in flue gas
Heat is absorbed.
In the present invention, in S1, helix tube prepares a copper pipe in setting first, and the shape of evaporation tank is cylinder, will
Copper pipe processing is spiral, and copper pipe is made to be coiled in the outside of evaporation tank.
Embodiment two
A kind of smoke absorption technique based on acid ammonia treatment technology, comprising the following steps:
S1: one evaporation tank is set in the bottom of purifying column, a heater box, evaporation tank is fixedly mounted in the top of evaporation tank
The same helix tube is set with the outside of heater box, one end of helix tube is gas inlet, and the other end of helix tube goes out for flue gas
Mouthful, exhanst gas outlet is connected to purifying column；
S2: flue gas enters in helix tube through gas inlet, and flue gas flows in helix tube, makes the heat in flue gas to steaming
Hair case is preheated, and flue gas enters in purifying column through exhanst gas outlet；
S3: the ammonium hydroxide haptoreaction in flue gas and purifying column absorbs the sulfur dioxide in flue gas, forms ammonium sulfate；
S4: ammonium sulfate being imported into evaporation tank and carries out heating evaporation, and ammonium sulfate crystallizes precipitation, sulfuric acid from solution
Ammonium is filtered, dry, and ammonium sulfate is made；
S5: the flue gas after reacting with ammonia water is through demister demisting, and then gas is discharged after active carbon filters, completion pair
The absorption of flue gas.
In the present invention, in S1, one Rose Box is set in the gas inlet of helix tube, is equipped with strainer, strainer in Rose Box
Dust in flue gas is filtered.
In the present invention, strainer is mounted in a fixed frame, and fixed frame is detachably arranged in Rose Box, can be in order to
Disassembly, cleaning replacement is carried out to strainer.
In the present invention, the two sides of Rose Box are respectively equipped with air inlet and air outlet, the gas inlet of gas outlet and helix tube
Connection, air inlet are equipped with an exhaust fan, and exhaust fan is used to aspirate flue gas, accelerate the circulation efficiency of flue gas.
In the present invention, in S5, active carbon is placed in installs case, and installs case is made of flase floor, is opened up on flase floor multiple
Air hole, purifying column are equipped with flue gas emission mouth, a placing box, the side of placing box and cigarette are fixedly mounted on flue gas emission mouth
The connection of gas discharge outlet, the other side of placing box offer through-hole, case lid are hinged at the top of placing box, and installs case is placed on placing box
It is interior, installs case can be picked and placed by opening case lid, it is convenient that active carbon in installs case is replaced.
In the present invention, in S1, multiple atomizers are equipped in purifying column, liquid ammonia is arranged in heater box, passes through flue gas
Heat be transmitted in heater box by helix tube, heater box can be heated, liquid ammonia is made to become gas ammonia, gas through evaporation
Ammonia and water are mixed into ammonium hydroxide, are sprayed by atomizer to ammonium hydroxide.
In the present invention, in S1, the material of helix tube is copper, and the thermal capacitance of copper is big, and heat absorption is fast, can be preferably in flue gas
Heat is absorbed.
In the present invention, in S1, helix tube prepares a copper pipe in setting first, and the shape of evaporation tank is cylinder, will
Copper pipe processing is spiral, and copper pipe is made to be coiled in the outside of evaporation tank and heater box.
The present embodiment is what is different from the first embodiment is that helix tube is mounted on the outside of heater box, the cigarette in helix tube simultaneously
Gas heat can also preheat heater box, and heater box is used to that liquid ammonia is made to gasify.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of smoke absorption technique based on acid ammonia treatment technology, which comprises the following steps:
S1: one evaporation tank is set in the bottom of purifying column, helix tube is arranged in the outside of evaporation tank, and one end of helix tube is flue gas
The other end of import, helix tube is exhanst gas outlet, and exhanst gas outlet is connected to purifying column；
S2: flue gas enters in helix tube through gas inlet, and flue gas flows in helix tube, makes the heat in flue gas to evaporation tank
It is preheated, flue gas enters in purifying column through exhanst gas outlet；
S3: the ammonium hydroxide haptoreaction in flue gas and purifying column absorbs the sulfur dioxide in flue gas, forms ammonium sulfate；
S4: ammonium sulfate being imported into evaporation tank and carries out heating evaporation, and ammonium sulfate crystallizes precipitation, ammonium sulfate warp from solution
Filtering, it is dry, ammonium sulfate is made；
S5: the flue gas after reacting with ammonia water is through demister demisting, and then gas is discharged after active carbon filters, and completes to flue gas
Absorption.
2. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 1, which is characterized in that described
In S1, one Rose Box is set in the gas inlet of helix tube, strainer is equipped in Rose Box, strainer carries out the dust in flue gas
Filtering.
3. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 2, which is characterized in that described
Strainer is mounted in a fixed frame, and fixed frame is detachably arranged in Rose Box.
4. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 2, which is characterized in that described
The two sides of Rose Box are respectively equipped with air inlet and air outlet, the gas inlet connection of gas outlet and helix tube, and air inlet is equipped with
One exhaust fan, exhaust fan are used to aspirate flue gas, accelerate the circulation efficiency of flue gas.
5. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 1, which is characterized in that described
In S5, active carbon is placed in installs case, and installs case is made of flase floor, and multiple air holes are opened up on flase floor, are set on purifying column
There is flue gas emission mouth, a placing box is fixedly mounted on flue gas emission mouth, the side of placing box is connected to flue gas emission mouth, is placed
The other side of case offers through-hole, and case lid is hinged at the top of placing box, and installs case is placed in placing box, can be by opening case lid
Installs case is picked and placed, it is convenient that active carbon in installs case is replaced.
6. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 1, which is characterized in that described
In S1, multiple atomizers are equipped in purifying column, liquid ammonia becomes gas ammonia through evaporation, and gas ammonia and water are mixed into ammonium hydroxide, by being atomized
Spray head sprays ammonium hydroxide.
7. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 1, which is characterized in that described
In S1, the material of helix tube is copper, and the thermal capacitance of copper is big, and heat absorption is fast, can preferably be absorbed to the heat in flue gas.
8. a kind of smoke absorption technique based on acid ammonia treatment technology according to claim 1, which is characterized in that described
In S1, helix tube prepares a copper pipe in setting first, and the shape of evaporation tank is cylinder, and copper pipe processing is spiral,
Copper pipe is set to be coiled in the outside of evaporation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910384173.0A CN110201507A (en) | 2019-05-09 | 2019-05-09 | A kind of smoke absorption technique based on acid ammonia treatment technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910384173.0A CN110201507A (en) | 2019-05-09 | 2019-05-09 | A kind of smoke absorption technique based on acid ammonia treatment technology |
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| CN110201507A true CN110201507A (en) | 2019-09-06 |
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| CN201910384173.0A Pending CN110201507A (en) | 2019-05-09 | 2019-05-09 | A kind of smoke absorption technique based on acid ammonia treatment technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370909A (en) * | 2020-09-30 | 2021-02-19 | 山东岱荣节能环保科技有限公司 | Dust removal device for flue gas waste heat utilization |
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| CN101143291A (en) * | 2006-09-13 | 2008-03-19 | 史选增 | Low-consumption high-quality ammonium sulfate fertilizer recovery wet ammonia process desulfurizing technology |
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| CN106362569A (en) * | 2016-08-26 | 2017-02-01 | 江苏中圣高科技产业有限公司 | Ammonia-process desulfurization device and method for stepwise recycling of residual heat of high-temperature flue gas |
| CN106621773A (en) * | 2016-12-30 | 2017-05-10 | 中南大学 | Ammonia-carbon combined desulfurization and denitration method for sintering flue gas |
| CN207342429U (en) * | 2017-09-30 | 2018-05-11 | 广东石油化工学院 | A kind of gas cleaning desulfation dust-extraction device |
| CN108479369A (en) * | 2018-04-24 | 2018-09-04 | 中国石油化工股份有限公司 | A kind of ultra-clean discharge ammonia desulfuration equipment and technique |
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2019
- 2019-05-09 CN CN201910384173.0A patent/CN110201507A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3510253A (en) * | 1964-12-19 | 1970-05-05 | Hugo Petersen | Method of removing sulfur dioxide from gases |
| CN101143291A (en) * | 2006-09-13 | 2008-03-19 | 史选增 | Low-consumption high-quality ammonium sulfate fertilizer recovery wet ammonia process desulfurizing technology |
| CN200998639Y (en) * | 2007-02-09 | 2008-01-02 | 李培生 | Concentrated crystallization and absorbed oxidation combined type ammonia process desulfuration tower |
| CN101601964A (en) * | 2009-06-03 | 2009-12-16 | 李鹏举 | A kind of high-efficiency ammonia flue gas desulfurization technique and device |
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| CN106621773A (en) * | 2016-12-30 | 2017-05-10 | 中南大学 | Ammonia-carbon combined desulfurization and denitration method for sintering flue gas |
| CN207342429U (en) * | 2017-09-30 | 2018-05-11 | 广东石油化工学院 | A kind of gas cleaning desulfation dust-extraction device |
| CN108479369A (en) * | 2018-04-24 | 2018-09-04 | 中国石油化工股份有限公司 | A kind of ultra-clean discharge ammonia desulfuration equipment and technique |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370909A (en) * | 2020-09-30 | 2021-02-19 | 山东岱荣节能环保科技有限公司 | Dust removal device for flue gas waste heat utilization |
| CN112370909B (en) * | 2020-09-30 | 2022-02-18 | 山东岱荣节能环保科技有限公司 | Dust removal device for flue gas waste heat utilization |
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Application publication date: 20190906 |
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