CN106984124A - A kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device - Google Patents
A kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device Download PDFInfo
- Publication number
- CN106984124A CN106984124A CN201710345788.3A CN201710345788A CN106984124A CN 106984124 A CN106984124 A CN 106984124A CN 201710345788 A CN201710345788 A CN 201710345788A CN 106984124 A CN106984124 A CN 106984124A
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- Prior art keywords
- mortar
- reaction warehouse
- dust
- water
- spray equipment
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- 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
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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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
- B01D53/46—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
-
- 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
- B01D53/73—After-treatment of removed components
-
- 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
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- 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 separate type Sprayer Circulation desulfurization and dust-removal method and its device.It is characterized in that by the desulfurization of flue dust and dedusting in one, flue dust to smoke air inlet enter reaction warehouse front portion, sprayer unit purifies the solid particulate matter in flue dust, flue gas after purification enters reaction warehouse rear portion, mortar is sprayed and reacts to form calcium sulfite and calcium sulfate with flue gas, mix dust by spray equipment, concentrate to form mortar exclusion by oxidation reaction, the water filtration in mortar will be delivered to jet pipe to circulation hydroecium and sprayed again by filter layer.Compared with technology ratio, floor space of the present invention is small, and cost of investment is low, desulfurization dust-removing efficiency is high.
Description
Technical field
A kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device, the invention belongs to flue-gas dust-removing and desulfurization technology neck
Domain, it is adaptable to the purification techniques device of sulfur dioxide and solid particle in the flue gas of combustion apparatus discharge.
Background technology
At present, in using coal as the combustion apparatus of fuel, much using water film dust removal device.The flue gas of combustion apparatus discharge exists
Literary pipe is first passed through in flue（Venturi tube）, flow up and revolve after then entering from the cylinder lower tangential of water dust scrubber
Transhipment is dynamic, while spraying into current, forms adherent current in cylindrical shape water dust scrubber, solid particle enters under the action of the centrifugal force
Adherent current, so as to play a part of cleaning, its efficiency is generally below 85%, moreover, without desulfurizing function, it is impossible to meet
Present environmental protection requirement.The conjunctiva and upper respiratory tract mucosa of Sulfur Dioxide On Human have intense irritation, can damage breathing
Device pipe can cause bronchitis, pneumonia, or even pulmonary edema respiratory paralysis.Sulfur dioxide is to metal material, building construction, cotton spinning chemical fibre
Fabric etc. easily causes corrosion, peels off, fades and damage.The arch-criminal for producing acid rain is exactly sulfur dioxide, precipitation acidity pH
During ＜ 4.9, it will obvious infringement is produced to nature.It is related because the pollution of sulfur dioxide is always the emphasis of pollution processing
Desulfurization technology can be applied to it is industrial few.So far, in coal combustion equipment, the overwhelming majority uses wet process of FGD
Technology, wherein based on limestone-gypsum method.SO in flue gas2Removing completed in absorption tower.As the SO in flue gas2
When being contacted on the filler grid interface of absorption tower with absorbent slurry, by means of gas-liquid two-phase concentration gradient, pass through diffusion process handle
SO2Mass transfer forms H to liquid phase2SO3, at the low ph with the CaCO in slurries3Reaction forms stable dihydrate gypsum,
Part SO2Elder generation and Ca2 Reaction generation CaCO3, then by dioxygen oxidation formation gypsum in flue gas.Calcium lime powder（Or little particle）Through
The white lime slurries with fine reactivity are made after pulping system water mixing, stirring, digestion, the absorbent after being made is starched through pump
Absorption tower top is delivered to, lime white absorbing liquid the particulate that nebulizes equably is sprayed into by nozzle or rotary sprayer, these are vaporific
Lime white absorbing liquid and the smoke contacts containing sulfur dioxide introduced, occur strong physical-chemical reaction, its result low humidity shape
The lime white absorbing liquid of state absorbs the heat in flue gas, and most moisture content vaporization therein becomes containing a small amount of moisture content
Particulate lime-ash, while lime white absorbing liquid is absorbed heat, sulfur dioxide absorption.The method desulfurization dust-removing efficiency is high, but system phase
To complexity, floor space is larger, fouling and clogging easily occurs, and the present invention makes desulfurizing agent anti-by spray equipment
Ying Tazhong fully reacts with the sulfur dioxide in flue gas, realizes high-efficiency desulfurization and prevents fouling and blocking.
The content of the invention
According to deficiency of the prior art above, the technical problem to be solved in the present invention is：There is provided a kind of simple in construction, behaviour
Make practical, unrestricted a kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device.
The technical solution adopted for the present invention to solve the technical problems is：A kind of separate type Sprayer Circulation desulfurization and dust-removal method
And its device, it is characterised in that：Fume enters the front portion of reaction warehouse from side from air inlet, and sprayer unit is by flue dust
Solid particulate matter is purified, by water filtering layer by water filtration to water tank, is pumped to annular spray equipment by circulation and is sprayed again
Go out, the flue gas after purification enters reaction warehouse rear portion, mortar is sprayed and reacts to form sulfurous acid with flue gas, mix dust by spray equipment
Calcium and calcium sulfate, concentrate to form mortar and be rejected in pulp storage tank, gas after treatment passes through top by oxidation reaction
Exhaust outlet is discharged, and the moisture filter of mortar in reaction warehouse to circulating in water tank, spray is pumped to by circulation by mortar filter layer
Shower device sprays again.
Compared with prior art, the present invention is had an advantageous effect in that：A kind of separate type Sprayer Circulation desulfurization and dedusting side
Method and its device, it is characterised in that：Including reaction warehouse, sprayer unit, mortar spray equipment, water circulating pump, water tank, recirculated water
Pump is connected by pipeline with water tank and tank, and waste port is arranged on reaction warehouse, and it is left that flue gas exhaust mouth is installed on reaction warehouse
Side upper end, mortar waste port is arranged on reaction warehouse and close to flue gas exhaust mouthful, and water tank is arranged on reaction warehouse side, water filtration
Layer is arranged on water tank side, and the top of reaction warehouse is provided with top service ports, and reaction warehouse side is provided with smoke air inlet, dividing plate peace
Inside reaction warehouse, mortar spray equipment is arranged on left side in reaction warehouse, is connected by pipeline with mortar circulating pump, mortar is followed
Ring pump is connected by pipeline with mortar pool, and for the desulfurizing agent needed for mortar spray equipment is provided, sprayer unit is installed on reaction warehouse
Inner right side, sprayer unit is connected by pipeline with water circulating pump, and mortar filter layer is arranged on internal on the right side of reaction warehouse, reclaims
Reaction warehouse is connected by water with circulating pump, and bottom service ports are arranged on the left side of reaction warehouse.
The present invention is simple in construction, small volume, is not limited by place, convenient in carrying, easily operation.
Brief description of the drawings
Fig. 1 is the preferred example of a kind of separate type Sprayer Circulation desulfurization and dust-removal method of the invention and its device, wherein：1 top
The waste material of 4 sprayer unit of portion's service ports 2 reaction warehouse, 3 dividing plate 5,6 mortar spray equipment of flue gas exhaust mouthful, 7 smoke air inlet 8
The mortar circulation of 14 mortar filter layer of mouth 9 tank, 10 water circulating pump, 11 water filtering layer, 12 mortar waste port, 13 water tank 15
The bottom service ports of 16 mortar pool of pump 17.
Embodiment
Below in conjunction with the accompanying drawings to a kind of intelligent spray formula desulfurization and dust-removal method and its device of the invention, it is described further：
It is characterized in that：Including reaction warehouse（2）, sprayer unit（4）, mortar spray equipment（6）, water circulating pump（10）, water tank（13）,
Water circulating pump（10）Pass through pipeline and water tank（13）And tank（9）It is connected, waste port（8）Installed in reaction warehouse（2）On, cigarette
Gas exhaust outlet（5）It is installed on reaction warehouse（2）Left side upper end, mortar waste port（12）Installed in reaction warehouse（2）It is upper and close to flue gas
Exhaust outlet（5）, water tank（13）Installed in reaction warehouse（2）Side, water filtering layer（11）Installed in water tank（13）Side, reaction
Storehouse（2）Top be provided with top service ports（1）, reaction warehouse side is provided with smoke air inlet（7）, dividing plate（3）It is installed on reaction warehouse
（2）Inside, mortar spray equipment（6）Installed in reaction warehouse（2）Interior left side, passes through pipeline and mortar circulating pump（15）It is connected, ash
Starch circulating pump（15）Pass through pipeline and mortar pool（16）It is connected, is mortar spray equipment（6）Desulfurizing agent needed for providing, spraying dress
Put（4）It is installed on reaction warehouse（2）Inner right side, sprayer unit（4）Pass through pipeline and water circulating pump（10）It is connected, mortar filtering
Layer（14）Installed in reaction warehouse（2）Inside right side, return water pipe（15）By reaction warehouse（2）With circulating pump（14）It is connected, bottom
Service ports（17）Installed in reaction warehouse（2）Left side.
Specific implementation step is that fume is entered to the front portion of reaction warehouse from side from air inlet, and sprayer unit is by flue dust
In solid particulate matter purification, by water filtering layer by water filtration to water tank, annular spray equipment is pumped to again by circulating
Secondary to spray, the flue gas after purification enters reaction warehouse rear portion, and mortar is sprayed and reacts to form Asia with flue gas, mix dust by spray equipment
Calcium sulfate and calcium sulfate, concentrate to form mortar and be rejected in pulp storage tank by oxidation reaction, and gas after treatment passes through upper
The exhaust outlet discharge of side, mortar filter layer to circulating in water tank, pumps the moisture filter of mortar in reaction warehouse by circulating
Sprayed again to spray equipment.
Claims (4)
1. a kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device, it is characterised in that：Fume is from side from air inlet
Mouthful enter reaction warehouse front portion, sprayer unit by flue dust solid particulate matter purify, by water filtering layer by water filtration to store up
Water pot, is pumped to annular spray equipment by circulation and sprays again, and the flue gas after purification enters reaction warehouse rear portion, and spray equipment will
Mortar sprays to react to form calcium sulfite and calcium sulfate with flue gas, mix dust, concentrates to form mortar exclusion by oxidation reaction
Into pulp storage tank, gas after treatment is discharged by the exhaust outlet of top, and mortar filter layer is by the water of mortar in reaction warehouse
Divide in filtering to circulation water tank, spray equipment is pumped to by circulation and sprayed again.
2. a kind of separate type Sprayer Circulation desulfurization and dust-removal method according to claim 1 and its device, it is characterised in that：Bag
Include reaction warehouse（2）, sprayer unit（4）, mortar spray equipment（6）, water circulating pump（10）, water tank（13）, water circulating pump（10）
Pass through pipeline and water tank（13）And tank（9）It is connected, waste port（8）Installed in reaction warehouse（2）On, flue gas exhaust mouthful（5）
It is installed on reaction warehouse（2）Left side upper end, mortar waste port（12）Installed in reaction warehouse（2）It is upper and close to flue gas exhaust mouthful（5）, storage
Water pot（13）Installed in reaction warehouse（2）Side, water filtering layer（11）Installed in water tank（13）Side.
3. a kind of separate type Sprayer Circulation desulfurization and dust-removal method according to claim 1 and its device, it is characterised in that：Instead
Ying Cang（2）Top be provided with top service ports（1）, reaction warehouse side is provided with smoke air inlet（7）, dividing plate（3）It is installed on reaction
Storehouse（2）Inside, mortar spray equipment（6）Installed in reaction warehouse（2）Interior left side, passes through pipeline and mortar circulating pump（15）It is connected,
Mortar circulating pump（15）Pass through pipeline and mortar pool（16）It is connected, is mortar spray equipment（6）Desulfurizing agent needed for providing.
4. a kind of separate type Sprayer Circulation desulfurization and dust-removal method according to claim 1 and its device, it is characterised in that：Spray
Mist device（4）It is installed on reaction warehouse（2）Inner right side, sprayer unit（4）Pass through pipeline and water circulating pump（10）It is connected, mortar
Filter layer（14）Installed in reaction warehouse（2）Inside right side, return water pipe（15）By reaction warehouse（2）With circulating pump（14）It is connected,
Bottom service ports（17）Installed in reaction warehouse（2）Left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345788.3A CN106984124A (en) | 2017-05-17 | 2017-05-17 | A kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345788.3A CN106984124A (en) | 2017-05-17 | 2017-05-17 | A kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106984124A true CN106984124A (en) | 2017-07-28 |
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ID=59420818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710345788.3A Withdrawn CN106984124A (en) | 2017-05-17 | 2017-05-17 | A kind of separate type Sprayer Circulation desulfurization and dust-removal method and its device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106984124A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200797A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of flue gas purification system handling mercury fume |
| CN110624391A (en) * | 2019-11-05 | 2019-12-31 | 无锡市东方工业节能环保有限公司 | Desulfurization dust collecting equipment |
-
2017
- 2017-05-17 CN CN201710345788.3A patent/CN106984124A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109200797A (en) * | 2018-10-25 | 2019-01-15 | 中科协创环境科技江苏有限公司 | A kind of flue gas purification system handling mercury fume |
| CN110624391A (en) * | 2019-11-05 | 2019-12-31 | 无锡市东方工业节能环保有限公司 | Desulfurization dust collecting equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20170728 |