CN101525192B - Method and system for treating domestic sewage by using sewage water generated by desulfurization and dedusting of coal-fired boiler - Google Patents
Method and system for treating domestic sewage by using sewage water generated by desulfurization and dedusting of coal-fired boiler Download PDFInfo
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- CN101525192B CN101525192B CN2009100822452A CN200910082245A CN101525192B CN 101525192 B CN101525192 B CN 101525192B CN 2009100822452 A CN2009100822452 A CN 2009100822452A CN 200910082245 A CN200910082245 A CN 200910082245A CN 101525192 B CN101525192 B CN 101525192B
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Abstract
The invention discloses a method and a system for treating domestic sewage by using sewage water generated by desulfurization and dedusting of a coal-fired boiler, belonging to the range of energy-saving environment-protective wastewater comprehensive treatment technologies and equipment. The lower part of a dedusting and desulfurization tower is connected with a gray-water separation pool, the gray-water separation pool is respectively connected with a mixing pool and a circulating pool, the mixing pool is communicated with one end of a slag trough, the other end of the slag trough is connected with the circulating pool, an acidic clear water pipe is led out of the upper part of the gray-water separation pool to be connected to the circulating pool; a filter mesh is arranged in a domestic sewage reservoir; quasi-reclaimed water after the filtration enters a quasi-reclaimed water pool; and the quasi-reclaimed water pool is connected to the mixing pool. The method adopts the new concept of treating sewage by using sewage, combines the desulfurization, the dedusting, the energy conservation, the water conservation, the water treatment, the prevention of secondary pollution and the like as a whole, carries out the comprehensive treatment and forms a green environment-protective chain. The use of the method can treat hundreds of thousands of tons of various types of sewage annually, thereby realizing energy conservation, emission reduction and recycling of the sewage. The device can save the investment by more than one half, and the promotion range is wide, thereby protecting green water, blue sky and health of people.
Description
Technical field
The invention belongs to energy-conserving and environment-protective sewage process for comprehensively treating and equipment scope, particularly a kind of method and system of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting.
Background technology
The use of coal firing boiler is quite general at present, thermal power generation, heating, smelting and other industrial use, but sulphur content height because of coal, external except that containing sulfur dioxide gas in the flue gas of discharging, also carry a large amount of flue dust secretly, be to cause down the major cause that has pellet in acid rain and the air, cause environmental pollution, make blue sky, Pekinese not blue.And the quantity discharged of Beijing sanitary sewage every day and industrial sewage is quite big, depends merely on sewage work and handles, and not only treatment capacity is very limited, and energy expenditure is big, the cost height, and this is one of major reason that causes Beijing water pollution.How to utilize the dirty water behind the desulfurization and dedusting to administer sanitary sewage and industrial sewage; make it can be comprehensive; recycle; this is a problem that is worth research; it is 200610089268.2 that the contriver will utilize at application number; the dirty water of the desulfurization and dedusting that produces in " coal-burning boiler limestone dual-purpose desulfurizing method " is administered sanitary sewage; open up new approaches with dirty pollution treatment; desulfurization; dedusting; energy-conservation; water saving; harness the river; prevent that secondary pollution etc. is combined as a whole; carry out the comprehensive regulation; form an environmental protection chain, protection Pekinese clear water; blue sky, the protection people ' s health.
Summary of the invention
The objective of the invention is to have the sanitary sewage very big to quantity discharged at prior art, depend merely on sewage work and handle, treatment capacity very provides a kind of method and system of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting under the condition of limited.It is characterized in that, the water shoot 2 that the described system that administers sanitary sewage with the dirty water of desulfurization and dedusting is dedusting and desulfurizing tower 1 bottom is connected to Ash Water Separator pond 3, the bottom in Ash Water Separator pond 3 connects high dense buck transfer lime 14, high dense buck transfer lime 14 is connected with mixing pit 13, mixing pit 13 communicates with an end of slag runner 15, and the other end of slag runner 15 connects circulatory pool 18; Acid clear water pipe 4 is drawn on 3 tops, Ash Water Separator pond, and acid clear water pipe 4 is connected to circulatory pool 18; Filtering net 9, sanitary sewage import 10 and sludge outlet 11 are set in the sanitary sewage tank 8; The water absorption tube of sanitary pump 7 inserts in the sanitary sewage tank 8, and the water side of sanitary pump 7 is connected with pond 5 in the standard by measuring control valve 6; Pond 5 is connected to mixing pit 13 by middle water pipe 12 in the standard;
Described slag runner 15 also is provided with slagging-off pipe 22.
Insert the water absorption tube of recycle pump 19 in the described circulatory pool 18, recycle pump 19 is connected to the mouth spray of dedusting and desulfurizing tower 1 again by spray control valve 20.
Described technical process of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting is:
1) sanitary sewage and the industrial sewage filtering net 9 by being provided with in the sanitary sewage tank 8 is removed floating matter and macrobead dirt, obtains in the standard water and injects standard ponds 5 by sanitary pump 7;
2) by volume, water in the standard of 5-50% is injected mixing pit 13, mix with the Ash Water Separator pond dense buck of 3 isolated acidity, precipitation is injected slag runner 15 then, water sterilization or absorption, filtration in aiming at sour water and slag, remove objectionable impurities, water quality is further improved;
3) more clear buck injects circulatory pool 18 after slag runner 15 sterilizations or absorption, precipitation, filtration;
4) place the coal firing boiler slag in circulatory pool 18, the more clear buck of step 3) is refiltered and precipitates, making becomes the high alkaline water of transparency;
5) by spray control valve 20 alkaline water of circulatory pool 18 is transported to dedusting and desulfurizing tower 1 with recycle pump 19 and makes spray water.
The invention has the beneficial effects as follows that the present invention administers sanitary sewage with the dirty water of desulfurization and dedusting; open up new approaches with dirty pollution treatment; desulfurization, dedusting, energy-conservation, economize on water, harness the river, prevent that secondary pollution etc. is combined as a whole; carry out the comprehensive regulation; form an environmental protection chain; can administer various sewage hundreds of thousands of tons every year with present method; energy-saving and emission-reduction; sewage can recycle; it is over half that this device can calculate investment; can promote on a large scale in the whole nation, protected clear water, the blue sky of motherland, the protection people ' s health.
Description of drawings
Fig. 1 is for administering the sanitary sewage system schematic with the dirty water of coal firing boiler desulfurization and dedusting.
Embodiment
The invention provides a kind of method and system of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting.Administering in the sanitary sewage system schematic as shown in Figure 1 with the dirty water of coal firing boiler desulfurization and dedusting, the water shoot 2 of dedusting and desulfurizing tower 1 bottom is connected to Ash Water Separator pond 3, the bottom in Ash Water Separator pond 3 connects high dense buck transfer lime 14, high dense buck transfer lime 14 is connected with mixing pit 13, mixing pit 13 communicates with an end of slag runner 15, the other end of slag runner 15 connects circulatory pool 18, and slag runner 15 is provided with slagging-off pipe 22.Acid clear water pipe 4 is drawn on 3 tops, Ash Water Separator pond, and acid clear water pipe 4 is connected to circulatory pool 18; Filtering net 9, sanitary sewage import 10 and sludge outlet 11 are set in the sanitary sewage tank 8; The water absorption tube of sanitary pump 7 inserts in the sanitary sewage tank 8, and the water side of sanitary pump 7 is connected with pond 5 in the standard by measuring control valve 6; Pond 5 is connected to mixing pit 13 by middle water pipe 12 in the standard;
Insert the water absorption tube of recycle pump 19 in the described circulatory pool 18, recycle pump 19 is connected to the mouth spray of dedusting and desulfurizing tower 1 again by spray control valve 20.
Described technical process of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting is:
1) sanitary sewage and the industrial sewage filtering net 9 by being provided with in the sanitary sewage tank 8 is removed floating matter and macrobead dirt, obtains in the standard water and injects standard ponds 5 by sanitary pump 7;
2) by volume, water in the standard of 5-50% is injected mixing pit 13, mix with the Ash Water Separator pond dense buck of 3 isolated acidity, precipitation is injected slag runner 15 then, water sterilization or absorption, filtration in aiming at sour water and slag, remove objectionable impurities, water quality is further improved;
3) more clear buck injects circulatory pool 18 after slag runner 15 sterilizations or absorption, precipitation, filtration;
4) place the coal firing boiler slag in circulatory pool 18, the more clear buck of step 3) is refiltered and precipitates, making becomes the high alkaline water of transparency;
5) by spray control valve 20 alkaline water of circulatory pool 18 is transported to dedusting and desulfurizing tower 1 with recycle pump 19 and makes spray water.
The present invention opens up the new approaches with dirty pollution treatment; desulfurization, dedusting, energy-conservation, economize on water, harness the river, prevent that secondary pollution etc. is combined as a whole; carry out the comprehensive regulation, form an environmental protection chain, can administer various sewage hundreds of thousands of tons every year with present method; energy-saving and emission-reduction; sewage can recycle, and it is over half that this device can calculate investment, can promote on a large scale in the whole nation; clear water, the blue sky of motherland have been protected, the protection people ' s health.
Claims (3)
1. system that administers sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting, it is characterized in that, the water shoot (2) of dedusting and desulfurizing tower (1) bottom is connected to Ash Water Separator pond (3), the bottom in Ash Water Separator pond (3) connects high dense buck transfer lime (14), high dense buck transfer lime (14) is connected with mixing pit (13), mixing pit (13) communicates with an end of slag runner (15), and the other end of slag runner (15) connects circulatory pool (18); Acid clear water pipe (4) is drawn on top, Ash Water Separator pond (3), and acid clear water pipe (4) is connected to circulatory pool (18); Filtering net (9), sanitary sewage import (10) and sludge outlet (11) are set in the sanitary sewage tank (8); The water absorption tube of sanitary pump (7) inserts in the sanitary sewage tank (8), and the water side of sanitary pump (7) is connected with pond (5) in the standard by measuring control valve (6); Pond in the standard (5) is connected to mixing pit (13) by middle water pipe (12), and slag runner (15) also is provided with slagging-off pipe (22).
2. according to the described system that administers sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting of claim 1, it is characterized in that, insert the water absorption tube of recycle pump (19) in the described circulatory pool (18), recycle pump (19) is connected to the mouth spray of dedusting and desulfurizing tower (1) again by spray control valve (20).
3. a method of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting is characterized in that, described technical process of administering sanitary sewage with the dirty water of coal firing boiler desulfurization and dedusting is:
1) sanitary sewage and the industrial sewage filtering net (9) by being provided with in the sanitary sewage tank (8) is removed floating matter and macrobead dirt, obtains in the standard water and injects standard pond (5) by sanitary pump (7);
2) by volume, water in the standard of 5-50% is injected mixing pit (13), mix with the dense buck of the isolated acidity in Ash Water Separator pond (3), precipitation is injected slag runner (15) then, water sterilization or absorption, filtration in aiming at sour water and slag, remove objectionable impurities, water quality is further improved;
3) more clear buck injects circulatory pool (18) after slag runner (15) sterilization or absorption, precipitation, filtration;
4) place the coal firing boiler slag in circulatory pool (18), the more clear buck of step 3) is refiltered and precipitates, making becomes the high alkaline water of transparency;
5) by spray control valve (20) alkaline water of circulatory pool (18) is transported to dedusting and desulfurizing tower (1) with recycle pump (19) and makes spray water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100822452A CN101525192B (en) | 2009-04-21 | 2009-04-21 | Method and system for treating domestic sewage by using sewage water generated by desulfurization and dedusting of coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100822452A CN101525192B (en) | 2009-04-21 | 2009-04-21 | Method and system for treating domestic sewage by using sewage water generated by desulfurization and dedusting of coal-fired boiler |
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| Publication Number | Publication Date |
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| CN101525192A CN101525192A (en) | 2009-09-09 |
| CN101525192B true CN101525192B (en) | 2010-12-08 |
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| CN2009100822452A Expired - Fee Related CN101525192B (en) | 2009-04-21 | 2009-04-21 | Method and system for treating domestic sewage by using sewage water generated by desulfurization and dedusting of coal-fired boiler |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730809B (en) * | 2012-06-29 | 2013-09-11 | 江苏申久化纤有限公司 | Coal-combustion boiler ash-water recycling system and method |
| CN103301734B (en) * | 2013-07-05 | 2015-06-17 | 湖南科伦制药有限公司 | Desulfurization and dust removal line of boiler |
| CN103351076B (en) * | 2013-07-16 | 2014-08-13 | 李德志 | Comprehensive industrial wastewater processing method |
| CN103773500B (en) * | 2014-02-25 | 2015-05-13 | 唐山科源环保技术装备有限公司 | Technological method for cooling gas generator, removing sulfur and treating wastewater |
| CN103936193A (en) * | 2014-04-03 | 2014-07-23 | 王金定 | Automatic cleaning equipment for recycling waste (alkali) water |
| CN109453550A (en) * | 2018-12-28 | 2019-03-12 | 启明星宇节能科技股份有限公司 | Press filteration system for denitration desulfurization and dedusting product |
| CN112169574A (en) * | 2019-07-05 | 2021-01-05 | 福建省坤宁环保工程有限公司 | Coal fired boiler SOx/NOx control clean system |
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