CN105148721B - A kind of dry method desulfuration system - Google Patents
A kind of dry method desulfuration system Download PDFInfo
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- CN105148721B CN105148721B CN201510643723.8A CN201510643723A CN105148721B CN 105148721 B CN105148721 B CN 105148721B CN 201510643723 A CN201510643723 A CN 201510643723A CN 105148721 B CN105148721 B CN 105148721B
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Abstract
The present invention relates to a kind of dry method desulfuration system, gas approach communicates with mixing chamber；Gas approach upper end communicates with desulfurizing agent charging aperture；Desulfurizing agent charging aperture upper end is provided with beater；Agitator it is provided with in mixing chamber；Mixing chamber upper end communicates with conversion zone；Conversion zone is arranged over several oxygen regulating valves；Oxygen regulating valve is connected with oxygen-increasing device；Conversion zone lower end communicates with conveying equipment；Conveying equipment slips by first expects that skewed slot communicates with elevator；Elevator upper end slips by second expects that skewed slot communicates with screening installation upper end；Screening installation one end communicates with intake stack, and the other end is communicated with bagroom by dust-precipitator intake stack；Intake stack communicates with the middle part of elevator；Bagroom is connected with air-introduced machine by neat stress pipeline, the dry method desulfuration system of the present invention, its simple in construction, it is possible to utilizing carbide slag to carry out dry desulfurization, desulfuration efficiency is high, does not also result in pollution environment while carbide slag has been carried out twice laid.
Description
Technical field
The invention belongs to flue gas desulfurization device field, particularly relate to a kind of dry method desulfuration system.
Background technology
Current domestic desulfurization by dry method mainly has spray drying process, active carbon adsorption, electron ray radiation method, fills corona method, charged dry sorbent injection method, in-furnace calcium spraying afterbody humidification method, flue gas circulating fluidized bed technology and in-furnace calcium spraying circulating fluidized bed technique, but above-mentioned desulfurization by dry method is all to use lime stone as desulfurizing agent, although investment cost is the highest, but the most generally there is the problem that desulfuration efficiency is on the low side, sorbent utilization is low and desulfurizing byproduct can cause secondary pollution.
The main component of carbide slag is calcium hydroxide, and its surface area is big, and particle diameter is little, desulphurizing activated by force, being good SO2 absorbent, and carbide slag is calcium carbide reacts with water and the waste residue discharged, the domestic carbide slag having tens million of tons every year is stacked, do not only take up a large amount of soil, and pollute environment, if it is possible to utilize carbide slag as desulfurizing agent and to coordinate suitable desulfurizer to carry out dry desulfurization, then can not only improve desulfuration efficiency, and carbide slag can be carried out twice laid, solve problem of environmental pollution.
Summary of the invention
The invention aims to overcome the deficiencies in the prior art to provide one that carbide slag can be utilized as desulfurizing agent, while improving desulfuration efficiency, carbide slag is carried out twice laid, and solves the dry method desulfuration system of problem of environmental pollution.
For reaching above-mentioned purpose, the technical solution used in the present invention is: a kind of dry method desulfuration system, including gas approach, mixing chamber, desulfurizing agent charging aperture, beater, agitator, conversion zone, oxygen regulating valve, oxygen-increasing device, conveying equipment, first slip material skewed slot, elevator, second slip material skewed slot, screening installation, intake stack, dust-precipitator intake stack, bagroom, neat stress pipeline and air-introduced machine；Described gas approach communicates with mixing chamber；Described gas approach upper end communicates with desulfurizing agent charging aperture；Described desulfurizing agent charging aperture upper end is provided with beater；It is provided with agitator in described mixing chamber；Described mixing chamber upper end communicates with conversion zone；Described conversion zone is arranged over several oxygen regulating valves；Described oxygen regulating valve is connected with oxygen-increasing device；Described conversion zone lower end communicates with conveying equipment；Described conveying equipment slips by first expects that skewed slot communicates with elevator；Described elevator upper end slips by second expects that skewed slot communicates with screening installation upper end；Described screening installation one end communicates with intake stack, and the other end is communicated with bagroom by dust-precipitator intake stack；Described intake stack communicates with the middle part of elevator；Described bagroom is connected with air-introduced machine by neat stress pipeline.
Preferably, described screening installation lower end is provided with by-product impurity discharge valve；Described bagroom lower end is provided with byproduct finished product discharge valve.
Preferably, described desulfurizing agent charging aperture one end is additionally provided with heater.
Preferably, described conversion zone is made up of multiple bend pipe UNICOMs.
Preferably, the angle between described desulfurizing agent charging aperture and gas approach is 50 °-60 °.
Preferably, the quantity of described oxygen regulating valve is two.
Utilization due to technique scheme, the present invention compared with prior art has the advantage that the dry method desulfuration system of the present invention program, conversion zone is bend pipe structure, extend the flue gas time of staying in desulfurizer, make desulfurizing agent be fully contacted with flue gas, substantially increase the utilization rate of desulfuration efficiency and desulfurizing agent.Magazins' layout in desulfurizing byproduct can be improve the quality of desulfurated plaster, the problem solving desulfurizing byproduct secondary pollution by the desulphurization system of the present invention program.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings technical solution of the present invention is described further.
Accompanying drawing 1 is the structural representation of dry method desulfuration system of the present invention.
Wherein: 1, gas approach；2, mixing chamber；3, desulfurizing agent charging aperture；4, beater；5, agitator；6, conversion zone；7, oxygen regulating valve；8, oxygen-increasing device；9, conveying equipment；10, first material skewed slot is slipped；11, elevator；12, second material skewed slot is slipped；13, screening installation；14, dust-precipitator intake stack；15, bagroom；16, neat stress pipe；17, air-introduced machine；18, heater；19, by-product impurity discharge valve；20, byproduct finished product discharge valve；21, intake stack.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Of the present invention a kind of dry method desulfuration system as shown in Figure 1, including gas approach 1, mixing chamber 2, desulfurizing agent charging aperture 3, beater 4, agitator 5, conversion zone 6, oxygen regulating valve 7, oxygen-increasing device 8, conveying equipment 9, first slip material skewed slot 10, elevator 11, second slip material skewed slot 12, screening installation 13, intake stack 21, dust-precipitator intake stack 14, bagroom 15, neat stress pipeline 16 and air-introduced machine 17；Described gas approach 1 communicates with mixing chamber 2；Described gas approach 1 upper end communicates with desulfurizing agent charging aperture 3；Described desulfurizing agent charging aperture 3 upper end is provided with beater 4；It is provided with agitator 5 in described mixing chamber 2；Described mixing chamber 2 upper end communicates with conversion zone 6；Described conversion zone 6 is arranged over several oxygen regulating valves 7；Described oxygen regulating valve 7 is connected with oxygen-increasing device 8；Described conversion zone 6 lower end communicates with conveying equipment 9；Described conveying equipment 9 slips by first expects that skewed slot 10 communicates with elevator 11；Described elevator 11 upper end slips by second expects that skewed slot 12 communicates with screening installation 13 upper end；Described screening installation 13 one end communicates with intake stack 21, and the other end is communicated with bagroom 15 by dust-precipitator intake stack 14；Described intake stack 21 communicates with the middle part of elevator 11；Described bagroom 14 is connected with air-introduced machine 17 by neat stress pipeline 16；Described screening installation 13 lower end is provided with by-product impurity discharge valve 19；Described bagroom 15 lower end is provided with byproduct finished product discharge valve 20；Described desulfurizing agent charging aperture 3 one end is additionally provided with heater 18；Described conversion zone 6 is made up of multiple bend pipe UNICOMs；Angle between described desulfurizing agent charging aperture 3 and gas approach 1 is 50 °-60 °；The quantity of described oxygen regulating valve 7 is two or more.
Wherein desulfurizing agent can use moisture content about 20% dry carbide slag, it can also be the moisture content wet carbide slag that reaches 40%, heater can not be started when the moisture content dry carbide slag about 20% selected by desulfurizing agent, desulfurizing agent selection moisture content reaches to start heater during the wet carbide slag of 40%, and heater can use electrical heating or steam heating.
Embodiment one
As a example by the carbide slag of 40% water content makees desulfurizing agent, the invention will be further described.
The carbide slag of 40% water content is moist sticky lumpy material, enters beater 4 and is slipped in desulfurizing agent charging aperture 3 by breaing up after blade cuts becomes little particle of high-speed rotation；Owing to carbide slag moisture content is higher, open the heater 18 of desulfurizing agent charging aperture 3 bottom, the portion of water in evaporation carbide slag, make the non-caked tube wall at desulfurizing agent charging aperture of carbide slag；Then during the landing of carbide slag particle enters the pipeline of gas approach 1; under the following current of sulfur-containing smoke gas promotes, enter mixing chamber 2 be pre-mixed with sulfur-containing smoke gas; sulfur dioxide in flue gas and carbide slag contained humidity react generation sulfurous acid; carbide slag particle and the flue gas containing sulfurous acid are under the effect of agitator 5; produce fierce turbulence and mix; both are fully contacted mixing, carry out preliminary desulphurization reaction.
Then carbide slag particle enters in conversion zone 6 with flue gas, opens oxygen-increasing device 8, is inputted in conversion zone by oxygen by oxygen regulating valve 7, thus calcium sulfite particles oxidation is generated calcium sulfate particle；Sweetening process also creates substantial amounts of desulfurizing byproduct, the most oarse-grained desulfurizing byproduct falls under gravity in the conveying equipment 9 below conversion zone 6, export from conveying equipment 9 and slip material skewed slot 10 along first and enter elevator 11, then slip along second after being risen to certain altitude by elevator 11 enter screening installation 13 after material skewed slot 12 in sort；The little particle of another part and powdery desulfurizing byproduct enter the intake stack 21 of screening installation 13 under the effect of air-introduced machine 17 gravitation, the little particle and the powdery desulfurizing byproduct by-product impurity discharge valve 19 from screening installation 13 bottom that sub-elect draw off, desulfuration byproduct impurity enters dust-precipitator intake stack 14 with the flue gas air outlet from screening installation 13 top, the desulfuration byproduct impurity collected through bagroom 15 is discharged from byproduct finished product discharge valve 20, and the flue gas after purification drains into air through air-introduced machine 17 from neat stress pipe 16 road.
The dry method desulfuration system of the present invention program, conversion zone is bend pipe structure, extends the flue gas time of staying in desulfurizer, makes desulfurizing agent be fully contacted with flue gas, substantially increases the utilization rate of desulfuration efficiency and desulfurizing agent.Magazins' layout in desulfurizing byproduct can be improve the quality of desulfurated plaster, the problem solving desulfurizing byproduct secondary pollution by the desulphurization system of the present invention program.
Below it is only the concrete exemplary applications of the present invention, protection scope of the present invention is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, within the scope of all falling within rights protection of the present invention.
Claims (8)
1. a dry method desulfuration system, it is characterised in that: include gas approach, mixing chamber, desulfurizing agent charging aperture, beater, agitator, conversion zone, oxygen regulating valve, oxygen-increasing device, conveying equipment, first slip material skewed slot, elevator, second slip material skewed slot, screening installation, intake stack, dust-precipitator intake stack, bagroom, neat stress pipeline and air-introduced machine；Described gas approach communicates with mixing chamber；Described gas approach upper end communicates with desulfurizing agent charging aperture；Described desulfurizing agent charging aperture upper end is provided with beater；It is provided with agitator in described mixing chamber；Described mixing chamber upper end communicates with conversion zone；Described conversion zone is arranged over several oxygen regulating valves；Described oxygen regulating valve is connected with oxygen-increasing device；Described conversion zone lower end communicates with conveying equipment；Described conveying equipment slips by first expects that skewed slot communicates with elevator；Described elevator upper end slips by second expects that skewed slot communicates with screening installation upper end；Described screening installation one end communicates with intake stack, and the other end is communicated with bagroom by dust-precipitator intake stack；Described intake stack communicates with the middle part of elevator；Described bagroom is connected with air-introduced machine by neat stress pipeline.
Dry method desulfuration system the most according to claim 1, it is characterised in that: described screening installation lower end is provided with by-product impurity discharge valve；Described bagroom lower end is provided with byproduct finished product discharge valve.
Dry method desulfuration system the most according to claim 2, it is characterised in that: described desulfurizing agent charging aperture one end is additionally provided with heater.
4. according to the dry method desulfuration system described in claim 1 or 3, it is characterised in that: described conversion zone is made up of multiple bend pipe UNICOMs.
Dry method desulfuration system the most according to claim 4, it is characterised in that: the angle between described desulfurizing agent charging aperture and gas approach is 50 °-60 °.
6. according to the dry method desulfuration system described in any one in claim 1,2,3, it is characterised in that: the quantity of described oxygen regulating valve is two or more.
Dry method desulfuration system the most according to claim 4, it is characterised in that: the quantity of described oxygen regulating valve is two or more.
Dry method desulfuration system the most according to claim 5, it is characterised in that: the quantity of described oxygen regulating valve is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510643723.8A CN105148721B (en) | 2015-10-08 | 2015-10-08 | A kind of dry method desulfuration system |
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| CN201510643723.8A CN105148721B (en) | 2015-10-08 | 2015-10-08 | A kind of dry method desulfuration system |
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| CN105148721A CN105148721A (en) | 2015-12-16 |
| CN105148721B true CN105148721B (en) | 2016-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110813071A (en) * | 2019-11-24 | 2020-02-21 | 楼佩琦 | High efficiency dry-type desulphurization unit |
| CN112657329A (en) * | 2020-12-22 | 2021-04-16 | 昆山宇顺环保科技有限公司 | Method for treating low-temperature low-sulfur-concentration over-standard waste gas by utilizing solid waste and dry method |
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Effective date of registration: 20170821 Address after: 224005 No. 9 middle Daqing Road, Jiangsu, Yancheng City Patentee after: Jiangsu Flaming Mountains Drying Technology Co., Ltd. Address before: 224005 Yancheng City Yancheng City Environmental Protection Technology Co., Ltd., 9 Daqing Road, Jiangsu, China Patentee before: YANCHENG FU SHI MACHINERY MANUFACTURING CO., LTD. |
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