CN105879636B - Coal-burning boiler wet desulphurization equipment - Google Patents
Coal-burning boiler wet desulphurization equipment Download PDFInfo
- Publication number
- CN105879636B CN105879636B CN201610241326.2A CN201610241326A CN105879636B CN 105879636 B CN105879636 B CN 105879636B CN 201610241326 A CN201610241326 A CN 201610241326A CN 105879636 B CN105879636 B CN 105879636B
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- CN
- China
- Prior art keywords
- spray
- desulfurizing tower
- tube
- tower
- circulation pump
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Classifications
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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
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/102—Oxygen
-
- 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
Coal-burning boiler wet desulphurization equipment belongs to technical field of environment protection equipment more particularly to a kind of coal-burning boiler wet desulphurization equipment.The present invention provides a kind of extraordinary coal-burning boiler wet desulphurization equipment of desulfurization effect.The present invention includes desulfurizing tower, its structural feature desulfurizing tower upper end is spray column, spray column upper end is electrostatic tower, desulfurizing tower lower end is circulatory pool, circulatory pool is connected by pipeline with the entrance that first circulation pumps, the outlet of first circulation pump aoxidizes tube inlet with the spray for spraying oxidized portion by pipeline and is connected, and is connected inside the fluid output port and the circulatory pool after spraying the spray oxidation of oxidized portion；Concentration basin is connected by pipeline with second circulation pump intake, and second circulation pump discharge is connected by pipeline with the entrance of spray tube, and outlet a part of spray tube is placed in the top of spray column, and outlet another part of spray tube is placed in the top of desulfurizing tower；The desulfurizing tower lower part is provided with lateral smoke inlet.
Description
Technical field
The invention belongs to technical field of environment protection equipment more particularly to a kind of coal-burning boiler wet desulphurization equipments.
Background technique
In May, 2014, in the coal-fired flue-gas that academician of the Chinese Academy of Engineering Wang Wenxing professor, National Environmental consultant professor Zhu Tan preside over
Dedusting and desulphurization integrated technique would indicate that with equipment qualification: desulphurization plant at present, and smoke dust discharge concentration is greater than 50mg/m3, gaseous state
SO2Concentration of emission is greater than 100mg/m3, droplet PH=2.6 are recycled, illustrate that the misty flue gas discharged at present is substantial pollution object；It is not
Vapor is acid solution.Pass through power plant soot sulfur, it should generate 100% gypsum, but practical is 46%, discharges gaseous state SO2Only
0.22%, true desulfuration efficiency only reaches 50%, and total sulfur content is uneven into row, is the key that current gypsum rain formation, outstanding for air
The largest source of floating PM2.5 particle；Therefore current Wet Flue Gas Desulfurization Technique is not perfect.
Summary of the invention
The present invention addresses the above problem, provides a kind of extraordinary coal-burning boiler wet desulphurization equipment of desulfurization effect.
To achieve the above object, the present invention adopts the following technical scheme that, the present invention includes desulfurizing tower, structural feature desulfurization
Tower upper end is spray column, and spray column upper end is electrostatic tower, and desulfurizing tower lower end is circulatory pool, and circulatory pool passes through pipeline and first circulation
The entrance of pump is connected, and the outlet of first circulation pump aoxidizes tube inlet with the spray for spraying oxidized portion by pipeline and is connected, and sprays
It is connected inside fluid output port and the circulatory pool after the spray oxidation of oxidized portion；Concentration basin passes through pipeline and second circulation
Pump intake is connected, and second circulation pump discharge is connected by pipeline with the entrance of spray tube, and outlet a part of spray tube is placed in spray
The top of tower is drenched, outlet another part of spray tube is placed in the top of desulfurizing tower；The desulfurizing tower lower part is provided with laterally into cigarette
Mouthful.
As a preferred embodiment, spray oxidation tube of the present invention includes vertical main water inlet tube and is arranged in main water inlet tube
Multiple lateral outlet pipes disposed in parallel of vertically arranging on top, lateral outlet pipe, which is arranged on the outside of the upper end of desulfurizing tower, to be surrounded
Desulfurizing tower, transversely uniformly distributed multiple nozzles sprayed to desulfurizing tower outer wall of outlet pipe length direction on lateral outlet pipe；Spray oxygen
Change the containing part that part includes the liquid after spray oxidation described in access, containing part lower end, which is provided with, to be connected to the circulatory pool
Return port.
As another preferred embodiment, spray oxidized portion of the present invention includes spray oxidizing tower, the spray oxidation
Pipe includes vertical main water inlet tube and multiple lateral outlet pipes disposed in parallel of vertically arranging that main water inlet tube top is arranged in, cross
To outlet pipe setting, transversely outlet pipe length direction is evenly distributed with multiple nozzles on spray oxidizing tower internal upper part, lateral outlet pipe,
The outlet of spray oxidizing tower lower end is connected to by horizontal pipeline with upper end in the circulatory pool.
As another preferred embodiment, spray column and desulfurizing tower of the present invention are all made of vertical cylindrical tube, spray column
Internal diameter be greater than desulfurizing tower internal diameter.
As another preferred embodiment, in circulatory pool of the present invention, middle part, which is provided with, is divided into first part for circulatory pool
With the vertical baffle of second part, first part is connected to the entrance that the first circulation pumps, and second part is followed with described second
The fluid output port connection of ring pump intake, spray oxidized portion sprayed after oxidation；Being provided with above second part prevents from spraying
Phegma enters the baffle of second part.
As another preferred embodiment, the longitudinal section of spray oxidizing tower lower end of the present invention is back taper.
As another preferred embodiment, the serum outlet phase processed of second circulation pump intake of the present invention and pulping equipment
Even.
As another preferred embodiment, spray tube of the present invention includes vertical main water inlet tube and multiple vertically arrangements point
It is not arranged in parallel in the lateral outlet pipe on spray column top, desulfurizing tower top, is transversely discharged length of tube side on lateral outlet pipe
To uniformly multiple nozzles.
Secondly, being provided with porcelain vase at electrostatic tower upper end outlet of the present invention, sheath is set on the outside of porcelain vase, is arranged on sheath
Electric heater.
In addition, the lateral outlet pipe of spray tube of the present invention is seven, three are arranged in desulfurizing tower, and four settings exist
In spray column.
Beneficial effect of the present invention.
Spray oxidized portion is arranged in the present invention, can spray the liquid in circulatory pool and air oxidation.After spray oxidation
Spray liquid land into circulatory pool.
Spray column is arranged in desulfurizing tower upper end in the present invention, can control good flue gas flow rate, flue gas is in spray sweetening process
Time it is most suitable.Desulfurization optimal reaction temperature 20-45 degree can be achieved.
Misty flue gas carries droplet secretly into electrostatic tower droplet in the absorption of absorption pole, convergence, increase partial size hundred times, reaches millimeter
Partial size is dripped into circulatory pool.Residue is close to room temperature, purer, dust concentration less than 5 milligrams/cubic metre, SO2Concentration is small
In 10 milligrams/cubic metre, colorless and transparent CO2Gas discharge, discharge flue gas reaches to be discharged close to " 0 ".
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and detailed description.The scope of the present invention not only limits to
In the statement of the following contents.
Fig. 1 is structural schematic diagram of the embodiment of the present invention.
Fig. 2 is another embodiment of the present invention structural schematic diagram.
In figure, 1 it is desulfurizing tower, 2 is spray column, 3 is electrostatic tower, 4 is pulping equipment, 5 is first circulation pump, 6 is spray
Oxidized portion, 7 be vertical baffle, 8 be second circulation pump.
Specific embodiment
As shown, the present invention includes desulfurizing tower, structural feature desulfurizing tower upper end is spray column, and spray column upper end is quiet
Pylon, desulfurizing tower lower end are circulatory pool, and circulatory pool is connected by pipeline with the entrance that first circulation pumps, the outlet of first circulation pump
It aoxidizes tube inlet with the spray of spray oxidized portion by pipeline to be connected, the liquid output after spraying the spray oxidation of oxidized portion
It is connected inside end and the circulatory pool；Concentration basin is connected by pipeline with second circulation pump intake, and second circulation pump discharge passes through
Pipeline is connected with the entrance of spray tube, and outlet a part of spray tube is placed in the top of spray column, another portion in the outlet of spray tube
Be placed in the top of desulfurizing tower；The desulfurizing tower lower part is provided with lateral smoke inlet.
The electrostatic tower includes electrostatic device ontology and power supply.
The spray column and desulfurizing tower are all made of vertical cylindrical tube, and the internal diameter of spray column is greater than the internal diameter of desulfurizing tower.?
Spray column is arranged in desulfurizing tower upper end, and the internal diameter of spray column is greater than the internal diameter of desulfurizing tower；Sweetening process can be extended, make flue gas flow rate
Slow down, desulfurization effect is greatly enhanced.
The spray oxidation tube includes that vertical main water inlet tube is put down with multiple vertically arrangements that main water inlet tube top is arranged in
The edge on desulfurizing tower, lateral outlet pipe is arranged on the outside of the upper end of desulfurizing tower in the lateral outlet pipe of row setting, lateral outlet pipe
The uniformly distributed multiple nozzles sprayed to desulfurizing tower outer wall of lateral outlet pipe length direction；Spraying oxidized portion includes spray described in access
The containing part of liquid after oxidation, containing part lower end are provided with the return port being connected to the circulatory pool.
The spray oxidized portion includes spray oxidizing tower, and the spray oxidation tube includes that vertical main water inlet tube and setting exist
Multiple lateral outlet pipes disposed in parallel of vertically arranging on main water inlet tube top, lateral outlet pipe setting is in spray oxidizing tower
Top, transversely outlet pipe length direction is evenly distributed with multiple nozzles on lateral outlet pipe, and the outlet of spray oxidizing tower lower end passes through transverse direction
Pipeline is connected to upper end in the circulatory pool.
Middle part is provided with the vertical baffle that circulatory pool is divided into first part and second part in the circulatory pool, and first
Part is connected to the entrance of first circulation pump, second part and the second circulation pump intake, the spray for spraying oxidized portion
Fluid output port connection after leaching oxidation；The baffle for preventing spray phegma from entering second part is provided with above second part.
The longitudinal section of the spray oxidizing tower lower end is back taper.
The second circulation pump intake is connected with the serum outlet processed of pulping equipment.Circulation fluid is through second circulation in concentration basin
It pumps the slurrying liquid prepared with pulping equipment and carries out desulfurization into desulfurizing tower and spray column spray flue gas recirculation.
The spray tube includes that vertical main water inlet tube and multiple vertically arrange are arranged in parallel in spray column top respectively, take off
The lateral outlet pipe on sulphur tower top, transversely outlet pipe length direction is evenly distributed with multiple nozzles on lateral outlet pipe.
The spray liquid ingress of air that the spray oxidation tube sprays completes heat exchange, 2 water stones of the oxidation output close to room temperature
Cream restores close to normal-temperature water, flows back into circulatory pool.
It is provided with porcelain vase at the electrostatic tower upper end outlet, sheath is set on the outside of porcelain vase, electric heater is set on sheath.?
Electric heater is set at electrostatic tower upper end outlet, can keep porcelain vase is dry not climb electricity, insulation；Guarantee to discharge colorless and transparent saturation cigarette
Gas.
The lateral outlet pipe of the spray tube is seven, and three are arranged in desulfurizing tower, and four are arranged in spray column.If
The lateral outlet pipe for setting seven spray tubes can be such that residence time of the flue gas in desulfurizing tower and spray column lengthens, and can be greater than 10 seconds.
The electrostatic tower upper end is provided with transverse discharge funnel, and smoke inlet is opposite sets for chimney outlet and the transverse direction
It sets.
The solid particle accumulated in the circulatory pool, can be dehydrated through dewatering system, recycle 2 water gypsum.
Installation on-line detector is exported in electrostatic tower of the present invention.
Detection effect reaches.
Smoke dust discharge concentration is less than 5mg/m3。
SO2Concentration of emission is less than 10mg/m3。
Droplet is discharged close to " 0 ".
Flue gas is close to colorless and transparent.
PH value is close to water.
It is aqueous close to 10% that 2 water gypsum of recycling are exported in vacuum hydroextractor.
Embodiment: 300,000 units, 1080 tons of boilers.
Flue gas flow: 120 ten thousand steres/when.
Dust concentration is greater than 400mg/m after dedusting3。
150 degree or so of flue gas is through blower into desulfurizing tower after dedusting.
Effect: from the colorless and transparent flue gas of electrostatic tower top discharge, demisting efficiency close to 100%, efficiency of dust collection close to 100%,
Smoke dust discharge concentration is less than 5 milligrams/cubic metre, gaseous state SO2Removal efficiency is close to 100%, SO2Concentration of emission less than 10 milligrams/it is vertical
Square rice.
It is understood that being merely to illustrate the present invention above with respect to specific descriptions of the invention and being not limited to this
Technical solution described in inventive embodiments, those skilled in the art should understand that, still the present invention can be carried out
Modification or equivalent replacement, to reach identical technical effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (4)
1. coal-burning boiler wet desulphurization equipment, including desulfurizing tower, it is characterised in that desulfurizing tower upper end is spray column, spray column upper end
For electrostatic tower, desulfurizing tower lower end is circulatory pool, and circulatory pool is connected by pipeline with the entrance that first circulation pumps, first circulation pump
Outlet aoxidizes tube inlet with the spray for spraying oxidized portion by pipeline and is connected, the liquid after spraying the spray oxidation of oxidized portion
It is connected inside output end and the circulatory pool；Concentration basin is connected by pipeline with second circulation pump intake, second circulation pump discharge
It is connected by pipeline with the entrance of spray tube, outlet a part of spray tube is placed in the top of spray column, and the outlet of spray tube is another
A part is placed in the top of desulfurizing tower；The desulfurizing tower lower part is provided with lateral smoke inlet；
The spray oxidized portion include spray oxidizing tower, the spray oxidation tube include vertical main water inlet tube and setting master into
Multiple lateral outlet pipes disposed in parallel of vertically arranging on water pipe top, lateral outlet pipe setting are spraying in oxidizing tower
Portion, transversely outlet pipe length direction is evenly distributed with multiple nozzles on lateral outlet pipe, and the outlet of spray oxidizing tower lower end passes through transverse pipe
Road is connected to upper end in the circulatory pool；
The spray column and desulfurizing tower are all made of vertical cylindrical tube, and the internal diameter of spray column is greater than the internal diameter of desulfurizing tower；
Middle part is provided with the vertical baffle that circulatory pool is divided into first part and second part, first part in the circulatory pool
It is connected to the entrance of first circulation pump, second part and the second circulation pump intake, the spray oxygen for spraying oxidized portion
Fluid output port connection after change；The baffle for preventing spray phegma from entering second part is provided with above second part；
The second circulation pump intake is connected with the serum outlet processed of pulping equipment；
The spray tube includes that vertical main water inlet tube and multiple vertically arrange are arranged in parallel in spray column top, desulfurizing tower respectively
The lateral outlet pipe on top, transversely outlet pipe length direction is evenly distributed with multiple nozzles on lateral outlet pipe.
2. coal-burning boiler wet desulphurization equipment according to claim 1, it is characterised in that indulge the spray oxidizing tower lower end
Section is back taper.
3. coal-burning boiler wet desulphurization equipment according to claim 1, it is characterised in that set at the electrostatic tower upper end outlet
It is equipped with porcelain vase, sheath is set on the outside of porcelain vase, electric heater is set on sheath.
4. coal-burning boiler wet desulphurization equipment according to claim 1, it is characterised in that the lateral outlet pipe of the spray tube
It is seven, three are arranged in desulfurizing tower, and four are arranged in spray column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241326.2A CN105879636B (en) | 2016-04-19 | 2016-04-19 | Coal-burning boiler wet desulphurization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610241326.2A CN105879636B (en) | 2016-04-19 | 2016-04-19 | Coal-burning boiler wet desulphurization equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105879636A CN105879636A (en) | 2016-08-24 |
| CN105879636B true CN105879636B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610241326.2A Expired - Fee Related CN105879636B (en) | 2016-04-19 | 2016-04-19 | Coal-burning boiler wet desulphurization equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569983B (en) * | 2017-08-08 | 2020-04-03 | 武汉和尔环保科技有限公司 | Wet flue gas desulfurization equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580512A (en) * | 2011-04-21 | 2012-07-18 | 庄建中 | Liquid oxidation and solid concentration integration process |
| CN102580500A (en) * | 2012-02-23 | 2012-07-18 | 庄建中 | Dedusting desulfurization environment-friendly chimney |
| CN103230738A (en) * | 2013-05-22 | 2013-08-07 | 庄建中 | Process for removing oxynitride from coal-fired flue gas |
| CN104941432A (en) * | 2015-06-10 | 2015-09-30 | 浙江菲达环保科技股份有限公司 | Synergistic treatment device for dust removing and desulphurization |
| CN205598942U (en) * | 2016-04-19 | 2016-09-28 | 庄建中 | Coal fired boiler wet flue gas desulfurization equipment |
-
2016
- 2016-04-19 CN CN201610241326.2A patent/CN105879636B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580512A (en) * | 2011-04-21 | 2012-07-18 | 庄建中 | Liquid oxidation and solid concentration integration process |
| CN102580500A (en) * | 2012-02-23 | 2012-07-18 | 庄建中 | Dedusting desulfurization environment-friendly chimney |
| CN103230738A (en) * | 2013-05-22 | 2013-08-07 | 庄建中 | Process for removing oxynitride from coal-fired flue gas |
| CN104941432A (en) * | 2015-06-10 | 2015-09-30 | 浙江菲达环保科技股份有限公司 | Synergistic treatment device for dust removing and desulphurization |
| CN205598942U (en) * | 2016-04-19 | 2016-09-28 | 庄建中 | Coal fired boiler wet flue gas desulfurization equipment |
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| Publication number | Publication date |
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| CN105879636A (en) | 2016-08-24 |
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