CN108889097A - A kind of novel calcining desulphurization plant and its working method - Google Patents
A kind of novel calcining desulphurization plant and its working method Download PDFInfo
- Publication number
- CN108889097A CN108889097A CN201810742629.1A CN201810742629A CN108889097A CN 108889097 A CN108889097 A CN 108889097A CN 201810742629 A CN201810742629 A CN 201810742629A CN 108889097 A CN108889097 A CN 108889097A
- Authority
- CN
- China
- Prior art keywords
- tower
- spraying layer
- liquid
- desulfurizing tower
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B01D53/504—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 device
-
- 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
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
A kind of novel calcining desulphurization plant provided by the present invention, including desulfurizing tower and temperature-reducing tower；The lower part of temperature-reducing tower is provided with gas inlet, and liquid outlet is provided on the downside of gas inlet, and exhanst gas outlet is provided at the top of temperature-reducing tower, is being provided with spraying layer in cooling tower, two layers of spraying layer, spraying layer is the nozzle being uniformly arranged；Gas inlet connects calcining furnace pipe, and exhanst gas outlet pipeline is connected to desulfurizing tower；In drying on electric flue for desulfurizing tower, it is additionally provided with pipeline demister.The present invention also provides the working methods of above-mentioned novel calcining desulphurization plant：Flue gas of the present invention enters in temperature-reducing tower from lower part, enters in desulfurizing tower from temperature-reducing tower top, and the elbow quantity used on pipeline is reduced, and reduces the resistance of smoke movement, and less scaling, and reduction stops tower clearing times, improves working efficiency.
Description
Technical field
The invention belongs to technical field of environment protection equipment, a kind of novel calcining desulphurization plant and its working method are particularly belonged to.
Background technique
In the production process of calcining anode carbon block for electrolytic aluminum, desulfurizing tower is connected with temperature-reducing tower in the prior art flue
It being frequently occluded, trend of the flue gas come out in calcining furnace in temperature-reducing tower is upper entering and lower leaving, it is consistent with the water (flow) direction of spraying layer,
When in from calcining furnace to temperature-reducing tower, flue-gas temperature is higher, and moment and slurry liquid contacts are easy fouling, needs often to stop tower maintenance, shadow
Ring the production process of entire anode carbon block.
Summary of the invention
A kind of novel calcining desulphurization plant provided by the present invention, to reach the fouling rate in equipment that reduces, extension stops tower inspection
Interval time is repaired, the purpose of production efficiency is improved.
A kind of novel calcining desulphurization plant, including desulfurizing tower and temperature-reducing tower；It is characterized in that, the lower part of the temperature-reducing tower
It is provided with gas inlet, liquid outlet is provided on the downside of gas inlet, exhanst gas outlet is provided at the top of temperature-reducing tower, is being dropped
Wen Tanei is provided with spraying layer, and the spraying layer is two layers, spraying layer spray head be 90 degree vertically downward, tower wall spray head and water
Horizontal line is 30 degree；Gas inlet connects calcining furnace pipe, and exhanst gas outlet pipeline is connected to desulfurizing tower；In the electricity that dries of desulfurizing tower
On flue, it is additionally provided with pipeline demister.
Further, the pipeline that is connected between the liquid outlet and desulfurizing tower liquid-inlet and temperature-reducing tower bottom in
On same straight line.
Further, air-introduced machine is provided on the calcining furnace pipe.
Further, smoke outlet tube road is connected with lime stone slurry feed liquid pipeline.
Further, two parts spraying layer is divided into the desulfurizing tower, a part of spraying layer liquid is in desulfurizing tower
Liquid circulation, another part spraying layer liquid from outside.
Further, the pipeline demister is baffling template pipeline demister.
Meanwhile the present invention also provides the working methods of above-mentioned novel calcining desulphurization plant：
Under air-introduced machine effect, the flue gas that calcining furnace comes out is entered in temperature-reducing tower, spraying layer liquid autospasy in temperature-reducing tower
It is recycled in sulphur tower, spraying layer carries out preliminary treatment to flue gas, is flowed into desulfurizing tower together with liquid；Remaining flue gas from
The exhanst gas outlet on temperature-reducing tower top enters in desulfurizing tower, in-position be desulfurizing tower between liquid and spraying layer；Desulfurizing tower
In spraying layer be divided into two parts, a part of spraying layer liquid is liquid circulation in desulfurizing tower, another part spraying layer liquid
From outside；The electric flue that dries is connected in the flue that spray column comes out, is provided with pipeline demister on electric flue drying.
Beneficial effects of the present invention
Setting by increasing the number of plies of spraying layer and to nozzle in spraying layer, increases the flow of spraying layer, can
Desulfurizing tower is avoided to connect the blocking of flue with temperature-reducing tower.In temperature-reducing tower in the prior art and desulfurizing tower connection type, flue gas is certainly
Top enters in temperature-reducing tower and flue gas is connected in desulfurizing tower from temperature-reducing tower lower pipeline, transform as flue gas from lower part into
Enter into temperature-reducing tower, entered in desulfurizing tower from temperature-reducing tower top, the elbow quantity used on pipeline is reduced, and reduces flue gas
The resistance of movement, and it is less scaling, reduction stops tower clearing times, improves working efficiency.Desulfurizing tower flow velocity is higher, dust content compared with
It is more, we it is wet electricity before pipe laying demister, reduce desulfurizing tower dust emission concentration, reduce wet electric load.
Detailed description of the invention
Fig. 1 is process flow chart of the invention；
In figure：1, desulfurizing tower；2, temperature-reducing tower；3, gas inlet；4, liquid outlet；5, spraying layer；6, exhanst gas outlet pipeline；
7, pipeline demister；8, calcining furnace pipe.
Specific embodiment
Embodiment 1
Referring to attached drawing, a kind of novel calcining desulphurization plant, including desulfurizing tower 1 and temperature-reducing tower 2；It is characterized in that, described
The lower part of temperature-reducing tower 2 is provided with gas inlet 3, is provided with liquid outlet 4 on the downside of gas inlet 3, the liquid outlet 4 with
The pipeline and temperature-reducing tower bottom connected between 1 liquid-inlet of desulfurizing tower is on the same line；It is arranged at the top of temperature-reducing tower 2
There is exhanst gas outlet, spraying layer 5 is provided in temperature-reducing tower 2, the spraying layer 5 is two layers, and spraying layer spray head is 90 degree vertical
Downwards, tower wall spray head and horizontal line are 30 degree, and prevention tower wall is washed away；Gas inlet connects calcining furnace pipe 8, and calcining furnace goes out
Air-introduced machine is provided on smoke pipe 8.Exhanst gas outlet pipeline 6 is connected to desulfurizing tower 1；In drying on electric flue for desulfurizing tower, also set up
There is pipeline demister 7.
Feed liquid pipeline is connected on the exhanst gas outlet pipeline 6.It is divided into two parts spraying layer in desulfurizing tower, it is a part of
Spraying layer liquid is the liquid circulation in desulfurizing tower, and another part spraying layer liquid is from outside.
Embodiment 2
Meanwhile the present invention also provides the working methods of above-mentioned novel calcining desulphurization plant：
Air-introduced machine effect under, calcining furnace come out flue gas enter in temperature-reducing tower 2, in temperature-reducing tower 25 liquid of spraying layer from
It is recycled in desulfurizing tower, spraying layer 5 carries out preliminary treatment to flue gas, makes dust, sulfur dioxide, nitrogen oxides；In spray liquid
Under the action of body, it is flowed into desulfurizing tower 1 together with liquid；Remaining flue gas is entered from the exhanst gas outlet on 2 top of temperature-reducing tower
In desulfurizing tower 1, in-position be desulfurizing tower 1 between liquid and spraying layer；Spraying layer in desulfurizing tower 1 is divided into two parts, and one
Partial spraying layer liquid is liquid circulation in desulfurizing tower, and another part spraying layer liquid is from outside；It is come out in spray column
Flue connects the electric flue that dries, and pipeline demister 7 is provided on electric flue drying, and further removes desulfurizing tower 1 and comes out
The dust of flue gas.
Claims (7)
1. a kind of novel calcining desulphurization plant, including desulfurizing tower and temperature-reducing tower；It is characterized in that, the lower part of the temperature-reducing tower is set
It is equipped with gas inlet, liquid outlet is provided on the downside of gas inlet, exhanst gas outlet is provided at the top of temperature-reducing tower, is being cooled down
Be provided with spraying layer in tower, the spraying layer is two layers, and spraying layer is the nozzle being uniformly arranged, the nozzle and nozzle it
Between angulation be or arrangement relation, among spraying layer spray head be 90 degree vertically downward, tower wall spray head and horizontal line are 30
Spend angle；Gas inlet connects calcining furnace pipe, and exhanst gas outlet pipeline is connected to desulfurizing tower；In the electric flue that dries of desulfurizing tower
On, it is additionally provided with pipeline demister.
2. novel calcining desulphurization plant according to claim 1, which is characterized in that the liquid outlet and desulfurizing tower liquid
The pipeline connected between body import and temperature-reducing tower bottom are on the same line.
3. novel calcining desulphurization plant according to claim 1, which is characterized in that be arranged on the calcining furnace pipe
There is air-introduced machine.
4. novel calcining desulphurization plant according to claim 1, which is characterized in that the smoke outlet tube road connects
There is feed liquid pipeline.
5. novel calcining desulphurization plant according to claim 1, which is characterized in that be divided into two parts in the desulfurizing tower
Spraying layer, a part of spraying layer liquid are the liquid circulation in desulfurizing tower, and another part spraying layer liquid is from outside.
6. novel calcining desulphurization plant according to claim 1, which is characterized in that the pipeline demister is baffle plate
Type pipeline demister.
7. a kind of working method of novel calcining desulphurization plant according to claim 1, it is characterised in that：
Under air-introduced machine effect, the flue gas that calcining furnace comes out is entered in temperature-reducing tower, and spraying layer liquid is from desulfurizing tower in temperature-reducing tower
Middle circulation, spraying layer carry out preliminary treatment to flue gas, are flowed into desulfurizing tower together with liquid；Remaining flue gas is from cooling
The exhanst gas outlet at tower top end enters in desulfurizing tower, in-position be desulfurizing tower between liquid and spraying layer；In desulfurizing tower
Spraying layer is divided into two parts, and a part of spraying layer liquid is liquid circulation in desulfurizing tower, and another part spraying layer liquid comes from
It is external；The electric flue that dries is connected in the flue that spray column comes out, is provided with pipeline demister on electric flue drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742629.1A CN108889097A (en) | 2018-07-09 | 2018-07-09 | A kind of novel calcining desulphurization plant and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810742629.1A CN108889097A (en) | 2018-07-09 | 2018-07-09 | A kind of novel calcining desulphurization plant and its working method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108889097A true CN108889097A (en) | 2018-11-27 |
Family
ID=64348566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810742629.1A Pending CN108889097A (en) | 2018-07-09 | 2018-07-09 | A kind of novel calcining desulphurization plant and its working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108889097A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111167269A (en) * | 2020-01-15 | 2020-05-19 | 佛山市三水区琪昌机械设备有限公司 | Sulfur removal tower for waste gas |
| CN112827342A (en) * | 2020-12-30 | 2021-05-25 | 上海申欣环保实业有限公司 | Red mud treatment method based on flue gas desulfurization |
-
2018
- 2018-07-09 CN CN201810742629.1A patent/CN108889097A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111167269A (en) * | 2020-01-15 | 2020-05-19 | 佛山市三水区琪昌机械设备有限公司 | Sulfur removal tower for waste gas |
| CN111167269B (en) * | 2020-01-15 | 2021-06-25 | 佛山市三水区琪昌机械设备有限公司 | Sulfur removal tower for waste gas |
| CN112827342A (en) * | 2020-12-30 | 2021-05-25 | 上海申欣环保实业有限公司 | Red mud treatment method based on flue gas desulfurization |
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