CN106000064A - Limestone and gypsum wet desulphurization system - Google Patents
Limestone and gypsum wet desulphurization system Download PDFInfo
- Publication number
- CN106000064A CN106000064A CN201610479694.0A CN201610479694A CN106000064A CN 106000064 A CN106000064 A CN 106000064A CN 201610479694 A CN201610479694 A CN 201610479694A CN 106000064 A CN106000064 A CN 106000064A
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- CN
- China
- Prior art keywords
- gypsum
- inlet pipe
- gypsum fibrosum
- limestone
- connects
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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
- B01D53/46—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
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a limestone and gypsum wet desulphurization system which comprises a desulphurization tower, a circulating pool, a gypsum dilution tank and a gypsum extruder. The desulphurization tower is provided with an exhaust pipe, a defogging separation grille, spray pipes, porous trays, a gas inlet pipe, a circulating drain pipe, a slag storage pool and a first slag discharge opening from top to bottom; the circulating drain pipe is connected with the circulating pool which is connected with the spray pipes through a circulating pump, the upper portion of the gypsum dilution tank is provided with a slurry inlet pipe, a PH value sensor is arranged in the circulating pool and connected with a PLC control box, and the slurry inlet pipe is provided with a control valve which is connected with the PLC control box. By means of the design of cooperating the sensor, the PLC control box and the control valve, the limestone and gypsum wet desulphurization system has the advantages of being compact in structure, small in occupied area, high in treatment efficiency, capable of achieving real-time monitoring and high in automation degree.
Description
Technical field
The present invention relates to smoke processing system, be specifically related to a kind of Limestone-gypsum Wet Flue Gas Desulfurization Process system.
Background technology
Sulfur dioxide and nitrogen oxides are to affect bigger gaseous contaminant in atmosphere pollution, and human body, environment and ecosystem are had high risks, and along with the increasingly stringent of environmental requirement, the problem of NOx and SO2 discharge increasingly receives publicity.Sulfur dioxide and nitrogen oxides are derived mainly from the combustion process of the fossil fuel such as coal, oil, and the roasting of Ore, the fume emission of smelting process, the smoke evacuation of the most various burning boilers particularly power plant boiler has the features such as concentration is low, exhaust gas volumn is big, floating dust is many and is difficult to administer.In conventional art, discharge sulfur dioxide in flue gas and purification of nitrogen oxides technology are typically separately to carry out desulfurization and denitration, defect that the complexity which results in discharge flue gas purification system is huge, initial outlay is big, operating cost is high etc., seriously constrains the actual enforcement of discharge flue gas desulfurization and denitrification.Flue gas desulfurization technique is mainly based on Gypsum Wet, rotating spraying semidry method, in-furnace calcium spraying afterbody humidification activation, sea water desulfuration, electron-beam desulfurization, flue gas circulating fluidized bed desulfurization etc., wherein Wet Limestone method is the tail flue gas desulfurization technology being most widely used the most in the world, its subject matter is that the dissolubility of absorbent (Calx or limestone) is little, utilization rate is low, and waste residue amount is big；The main selective catalytic reduction technique of gas denitrifying technology (SCR), SNCR technology (SNCR), electronic beam method, impulse electric corona method, complex absorption process and urea absorptive method etc., gas denitrifying technology more ripe in running at present is mainly SCR technology, SNCR technology and SNCR/SCR combination technique, but there is initial investment costly in SCR method, operating temperature range is narrow, and there is NH_3 leakage, the shortcomings such as N2O, and catalyst easy in inactivation can be generated；And SNCR denitration is inefficient, and NH_3 leakage is many, causes secondary pollution.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that a kind of Limestone-gypsum Wet Flue Gas Desulfurization Process system, have compact conformation, floor space is little, treatment effeciency is high, real-time monitoring, advantage that automaticity is high.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: a kind of Limestone-gypsum Wet Flue Gas Desulfurization Process system, including desulfurizing tower, circulatory pool, Gypsum Fibrosum thinning tank and Gypsum Fibrosum extruder, desulfurizing tower arranges exhaustor from top to down, except mist isolated gate, shower, perforated trays, air inlet pipe, circulation drain pipe, storage slag bath and first row cinder notch, circulation drain pipe connects circulatory pool, circulatory pool connects shower by circulating pump, Gypsum Fibrosum thinning tank top is provided with pulp-inlet pipe, pH value sensor it is provided with in circulatory pool, pH value sensor connects PLC control cabinet, pulp-inlet pipe is provided with control valve, control valve connects PLC control cabinet.
Described Gypsum Fibrosum thinning tank includes stirring motor, stirring motor connects stirring paddle, stirring motor is controlled by described PLC control cabinet, Gypsum Fibrosum thinning tank bottom is provided with the 3rd slag notch, Gypsum Fibrosum thinning tank top is provided with pipeline, pulp-inlet pipe and secondary water inlet pipe, Gypsum Fibrosum thinning tank connects circulatory pool by pulp-inlet pipe, and pipeline connects Gypsum Fibrosum extruser, and Gypsum Fibrosum extruser is provided with water inlet pipe, helical axis, Calx bucket and driving means.
Described perforated trays and shower are multilamellar and arrange, and described Gypsum Fibrosum extruser is provided with washing outlet.
Described isolation is reverse V-shaped except mist grid, and described driving means is AC induction motor, and described circulating pump is Centrifugal Pump.
Described PLC control cabinet is connected to show the display screen of pH value sensor detection results.
The invention has the beneficial effects as follows: have compact conformation, floor space is little, treatment effeciency is high, real-time monitoring, advantage that automaticity is high.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the present invention.
In figure: 1, desulfurizing tower, 2, circulatory pool, 3, circulating pump, 4, Gypsum Fibrosum thinning tank, 5, perforated trays, 6, air inlet pipe, 7, exhaustor, 8, shower, 9, except mist isolated gate, 10, storage slag bath, 11, first row cinder notch, 12, second row cinder notch, 13, 3rd slag notch, 14, stirring motor, 15, stirring paddle, 16, pipeline, 17, Gypsum Fibrosum extruser, 18, water inlet pipe, 19, Calx bucket, 20, driving means, 21, helical axis, 22, washing outlet, 23, secondary water inlet pipe, 24, pH value sensor, 25, control valve, 26, pulp-inlet pipe.
Detailed description of the invention
As shown in Figure 1, a kind of Limestone-gypsum Wet Flue Gas Desulfurization Process system, including desulfurizing tower, circulatory pool, Gypsum Fibrosum thinning tank and Gypsum Fibrosum extruder, desulfurizing tower arranges exhaustor from top to down, except mist isolated gate, shower, perforated trays, air inlet pipe, circulation drain pipe, storage slag bath and first row cinder notch, circulatory pool has second row cinder notch, circulation drain pipe connects circulatory pool, circulatory pool connects shower by circulating pump, Gypsum Fibrosum thinning tank top is provided with pulp-inlet pipe, different pH value reaction effects is different, therefore pH value sensor is set in circulatory pool, pH value sensor connects PLC control cabinet, pulp-inlet pipe is provided with control valve, control valve connects PLC control cabinet, thus realize Automated condtrol.
Described Gypsum Fibrosum thinning tank includes stirring motor, stirring motor connects stirring paddle, stirring motor is controlled by described PLC control cabinet, Gypsum Fibrosum thinning tank bottom is provided with the 3rd slag notch, Gypsum Fibrosum thinning tank is provided with pipeline, pulp-inlet pipe and secondary water inlet pipe, Gypsum Fibrosum thinning tank connects circulatory pool by pulp-inlet pipe, and pipeline connects Gypsum Fibrosum extruser, and Gypsum Fibrosum extruser is provided with water inlet pipe, helical axis, Calx bucket and driving means.
Described perforated trays and shower are multilamellar and arrange, and described Gypsum Fibrosum extruser is provided with washing outlet.
Described except mist isolated gate be reverse V-shaped, described driving means is AC induction motor, and described circulating pump is Centrifugal Pump.
Described PLC control cabinet is connected to show the display screen of pH value sensor detection results.
For a person skilled in the art; still the technical scheme described in foregoing embodiments can be modified; or wherein portion of techniques feature is carried out equivalent; all within the spirit and principles in the present invention; the any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. a Limestone-gypsum Wet Flue Gas Desulfurization Process system, including desulfurizing tower, circulatory pool, Gypsum Fibrosum thinning tank and Gypsum Fibrosum extruder, desulfurizing tower arranges exhaustor, from top to down except mist isolated gate, shower, perforated trays, air inlet pipe, circulation drain pipe, storage slag bath and first row cinder notch, circulation drain pipe connects circulatory pool, circulatory pool connects shower by circulating pump, Gypsum Fibrosum thinning tank top is provided with pulp-inlet pipe, it is characterized in that, pH value sensor it is provided with in circulatory pool, pH value sensor connects PLC control cabinet, pulp-inlet pipe is provided with control valve, and control valve connects PLC control cabinet.
2. Limestone-gypsum Wet Flue Gas Desulfurization Process system as claimed in claim 1, it is characterized in that, described Gypsum Fibrosum thinning tank includes stirring motor, stirring motor connects stirring paddle, stirring motor is controlled by described PLC control cabinet, Gypsum Fibrosum thinning tank bottom is provided with the 3rd slag notch, Gypsum Fibrosum thinning tank top is provided with pipeline, pulp-inlet pipe and secondary water inlet pipe, Gypsum Fibrosum thinning tank connects circulatory pool by pulp-inlet pipe, pipeline connects Gypsum Fibrosum extruser, and Gypsum Fibrosum extruser is provided with water inlet pipe, helical axis, Calx bucket and driving means.
3. Limestone-gypsum Wet Flue Gas Desulfurization Process system as claimed in claim 1, it is characterised in that described perforated trays and shower are multilamellar and arrange, and described Gypsum Fibrosum extruser is provided with washing outlet.
4. Limestone-gypsum Wet Flue Gas Desulfurization Process system as claimed in claim 1, it is characterised in that described isolation is reverse V-shaped except mist grid, and described driving means is AC induction motor, and described circulating pump is Centrifugal Pump.
5. Limestone-gypsum Wet Flue Gas Desulfurization Process system as claimed in claim 1, it is characterised in that described PLC control cabinet is connected to show the display screen of pH value sensor detection results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479694.0A CN106000064A (en) | 2016-06-27 | 2016-06-27 | Limestone and gypsum wet desulphurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479694.0A CN106000064A (en) | 2016-06-27 | 2016-06-27 | Limestone and gypsum wet desulphurization system |
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| CN106000064A true CN106000064A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610479694.0A Pending CN106000064A (en) | 2016-06-27 | 2016-06-27 | Limestone and gypsum wet desulphurization system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675676A (en) * | 2021-01-19 | 2021-04-20 | 贵州东峰锑业股份有限公司 | Automatic flue gas desulfurization control system with automatic batching controlled by sulfur dioxide feedback |
| CN112999857A (en) * | 2021-02-24 | 2021-06-22 | 大唐环境产业集团股份有限公司 | Regulation and control method and regulation and control system for wide-load limestone slurry supply system |
-
2016
- 2016-06-27 CN CN201610479694.0A patent/CN106000064A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675676A (en) * | 2021-01-19 | 2021-04-20 | 贵州东峰锑业股份有限公司 | Automatic flue gas desulfurization control system with automatic batching controlled by sulfur dioxide feedback |
| CN112999857A (en) * | 2021-02-24 | 2021-06-22 | 大唐环境产业集团股份有限公司 | Regulation and control method and regulation and control system for wide-load limestone slurry supply system |
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Application publication date: 20161012 |