CN104772017A - Special fluidized bed device for active carbon desulphurization - Google Patents
Special fluidized bed device for active carbon desulphurization Download PDFInfo
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- CN104772017A CN104772017A CN201510146873.8A CN201510146873A CN104772017A CN 104772017 A CN104772017 A CN 104772017A CN 201510146873 A CN201510146873 A CN 201510146873A CN 104772017 A CN104772017 A CN 104772017A
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Abstract
The invention relates to the technical field of environment protection of industrial smoke purification and in particular relates to a special fluidized bed device for active carbon desulphurization. The special fluidized bed device is applicable to smoke desulphurization in the metallurgical industry and power plants, comprises a fluidized bed body and is characterized in that the fluidized bed body comprises a smoke chamber, a fluidization section and an expanding section which are arranged in sequence from bottom to top, wherein a smoke inlet is formed in one side of the smoke chamber; an oxidation air inlet and a steam inlet are formed in the other side of the smoke chamber; a dust hopper is arranged at the bottom of the smoke chamber. According to the special fluidized bed device for the active carbon desulphurization, a dust discharging valve is mounted at the bottom of the dust hopper; an active carbon feeding hole is formed in one side of the fluidization section; a saturated active carbon discharging hole is formed in the other end of the fluidization section; an air distribution plate is arranged at the bottom of the fluidization section; a smoke outlet is formed in the top end of the expanding section. The special fluidized bed device for the active carbon desulphurization can be used for carrying out the desulphurization, removing dioxin and other harmful materials in smoke, and is capable of continuously carrying out the desulphurization without halt; the special fluidized bed device is simple in structure, low in cost and easy to operate; the production efficiency is improved; the labor cost is correspondingly reduced.
Description
Technical field
The present invention relates to the environmental protection technical field of industrial flue gas cleaning, particularly a kind of special fluidized bed plant of active carbon desulfurization being applicable to metallurgy industry and flue gas desulphurization.
Background technology
The energy-consuming of China is based on coal, and coal is own through becoming the primary pollution source of China's environmental pollution.All sulfurous fuels all produce sulfur dioxide in combustion.Along with the fast development of China's economy, the SO2 of discharge also constantly increases.The SO2 discharged by coal burning accounts for 85% of total release, points out according to relevant research, and China discharges the economic loss about hundreds of millions yuan that SO2 causes every year, the economic loss about 5,000 hundred million yuan that present annual China Acid Rain Pollution causes.
From now to the year two thousand twenty, China will build a well-off society in an all-round way, and economic maintenance grows at top speed, and energy demand continues to increase.According to ENERGY PLANNING prediction, the consumption of coal total amount of China is by sustainable growth, and coal-fired sulfur dioxide generation also will continue to increase thereupon, and wherein Thermal Power Generation Industry consumption of coal and sulfur dioxide generation amplification thereof will higher than the average amplification in the whole nation.
Atmospheric environment is the valuable resource that the mankind depend on for existence, and the destruction of Atmosphere environment resource is a kind of irreversible process, and serious environmental pollution has a negative impact to the existence of the mankind and other biological, and protection of the environment has become current primary work.In The Atmosphere Over China pollutes and belongs to coal-smoke pollution, in order to control sulfur dioxide, carry out to flue gas the vital task that desulfurization has become China, therefore research and develop and apply the coal-fired flue gas desulfurization equipment technology of all kinds of efficient low input, tool is of great significance.
At present, controlling smoke SO 2, to discharge most effective method be flue gas desulfurization process.By carrying out desulfurization process to coal-fired flue-gas, can effectively discharge by control SO2.Flue gas desulfurization is divided into again desulfurization by dry method, Wet Flue Gas Desulfurization Technique.Lime stone---gypsum wet desulfurization is most widely used general at home and abroad, and usage ratio accounts for 80--90%, and desulfurization degree >=95%, technical maturity, stable operation, operating flexibility are good, desulfurizing agent is easy to get, operating cost is low.Shortcoming is: flow process is complicated, floor space is large, equipment investment is large, energy consumption is large, equipment corrosion is serious; Accessory substance gypsum poor quality, applies less, can form secondary pollution.And the active carbon desulfurization method in desulfurization by dry method not only has very high desulfuration efficiency, and also fine to the removal effect of bioxin, nitrogen oxide and other nuisance in flue gas, it is a desirable flue gas desulfurization processing method.
Active carbon desulfurization method Japan and Korea S's Application comparison extensive; domestic application is considerably less; the adsorption tower of domestic production has horizontal activated carbon adsorber, vertical active carbon adsorption tower two kinds; be mainly used in all kinds of low-concentration organic exhaust gas, the improvement of lacquer spraying waste gas, stench, the air quantity of process is all smaller, and can only intermittent duty; regular shutdown regenerates active carbon; be unsuitable for metallurgy industry and coal steam-electric plant smoke sulfur content is high, flue gas flow is large, needs the feature run continuously.
Summary of the invention
The present invention, in order to make up the defect of prior art, provides the special fluidized bed plant of active carbon desulfurization that a kind of structure is simple, equipment manufacturing cost is low, equipment resistance is little, simple to operate.
The present invention is achieved through the following technical solutions:
The special fluidized bed plant of a kind of active carbon desulfurization, comprise fluid bed body, it is characterized in that: described fluid bed body is from bottom to top followed successively by smoke-box, fluidisation section and expanding reach, the side of described smoke-box is provided with gas approach, opposite side is provided with oxidation wind import 12 and steam inlet 11, bottom is provided with ash bucket 13, hopper bottom is provided with dust discharge valve 14, described fluidisation section side is provided with active carbon charge door, the other end is provided with saturated activity charcoal outlet, bottom is provided with air distribution plate 10, and the top of described expanding reach is exhanst gas outlet.
Described oxidation wind import 12 is positioned at the below of steam inlet 11, makes distribution of steam more even like this.
Described air distribution plate is evenly distributed with some blast caps, and blast cap air outlet down, is evenly arranged, and can prevent active carbon to bleed smoke-box, cloth wind is effective, ensure that the normal fluidisation of active carbon.
The invention has the beneficial effects as follows:
1. can desulfurization, also can remove the bioxin in flue gas and other harmful substance;
2. fluidized bed plant can carry out desulfurization continuously, does not need to shut down;
3. device structure is simple, and cost is low, simple to operate;
4. equipment resistance is little, energy-conservation;
5. active carbon is fluidization, and smoke contacts area is large, and desulfuration efficiency is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is the structural representation of the special fluidized bed plant of a kind of active carbon desulfurization of the present invention;
Accompanying drawing 2 is the distribution schematic diagram of blast cap of the present invention on air distribution plate;
Accompanying drawing 3 is the longitudinal profile structural representation of blast cap of the present invention;
In figure, 1, gas approach, 2, smoke-box, 3, blast cap, 4, active carbon, 5, active carbon charge door, 6, fluidisation section, 7, expanding reach, 8, exhanst gas outlet, 9, active carbon outlet, 10, air distribution plate, 11, steam inlet, 12, oxidation wind import, 13, ash bucket, 14, dust discharge valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated, but be not used for limiting the scope of the invention.
As shown in Figure 1, the special fluidized bed plant of a kind of active carbon desulfurization of the present invention, comprise fluid bed body, described fluid bed body is from bottom to top followed successively by smoke-box 2, fluidisation section 6 and expanding reach 7, the side of described smoke-box 2 is provided with gas approach 1, opposite side is provided with oxidation wind import 12 and steam inlet 11, oxidation wind import 12 is positioned at the below of steam inlet 11, bottom is provided with ash bucket 13, dust discharge valve 14 is installed bottom ash bucket 13, described fluidisation section 6 side is provided with active carbon charge door 5, the other end is provided with saturated activity charcoal outlet 9, bottom is provided with air distribution plate 10, as shown in Figure 2, air distribution plate 10 is evenly distributed with some blast caps 3, the structure of blast cap 3 as shown in Figure 3, the top of expanding reach is exhanst gas outlet.
During fluidized bed plant work of the present invention, first active carbon 4 is added by active carbon charge door 5 on the air distribution plate 10 of fluidisation section 6 bottom, boiler smoke enters smoke-box 2 by the gas approach 1 of fluidized bed plant after sack cleaner filters, the sedimentation in smoke-box 2 of dust in flue gas is gathered in ash bucket 13, and dust dirt is regularly discharged through dust discharge valve 14; Flue gas enters fluidisation section 6 through air distribution plate 10 and blast cap 3, and active carbon 4 is kicked up by flue gas, and make active carbon 4 present fluidized state in fluid bed, flue gas fully contacts with active carbon, the SO in flue gas
2adsorbed by active carbon 4, oxidation air and steam enter fluidisation section 6 by oxidation wind import 12 that smoke-box 2 is arranged, steam inlet 11, the SO of oxidation air, steam and charcoal absorption
2under the effect of active carbon 4, reaction generates sulfuric acid; The exhanst gas outlet 8 of flue gas on expanding reach 7 through desulfurization is emptying, and expanding reach 7 can reduce flue gas wind speed, prevents active carbon from being taken away by flue gas; Active carbon 4 adsorbs SO
2after reaching capacity, by saturated activity charcoal outlet 9, active carbon 4 is entered active carbon regenerator and carry out thermal regeneration.
The special fluidized bed plant of active carbon desulfurization of the present invention can desulfurization, also can remove the bioxin in flue gas and other harmful substance; Desulfurization can be carried out continuously, not need to shut down; Device structure is simple, and cost is low, simple to operate; Equipment resistance is little, energy-conserving and environment-protective; Active carbon is fluidization, and smoke contacts area is large, and desulfuration efficiency is high, thus improves production efficiency, reduces labour cost accordingly.
Claims (3)
1. the special fluidized bed plant of active carbon desulfurization, comprise fluid bed body, it is characterized in that: described fluid bed body is from bottom to top followed successively by smoke-box (2), fluidisation section (6) and expanding reach (7), the side of described smoke-box (2) is provided with gas approach (1), opposite side is provided with oxidation wind import (12) and steam inlet (11), bottom is provided with ash bucket (13), ash bucket (13) bottom is provided with dust discharge valve (14), described fluidisation section (6) side is provided with active carbon charge door (5), the other end is provided with saturated activity charcoal outlet (9), bottom is provided with air distribution plate (10), the top of described expanding reach (7) is exhanst gas outlet (8).
2. the special fluidized bed plant of a kind of active carbon desulfurization according to claim 1, is characterized in that: described oxidation wind import (12) is positioned at the below of steam inlet (11).
3. the special fluidized bed plant of a kind of active carbon desulfurization according to claim 1, is characterized in that: state on air distribution plate (10) and be evenly distributed with some blast caps (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510146873.8A CN104772017A (en) | 2015-03-31 | 2015-03-31 | Special fluidized bed device for active carbon desulphurization |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510146873.8A CN104772017A (en) | 2015-03-31 | 2015-03-31 | Special fluidized bed device for active carbon desulphurization |
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| CN104772017A true CN104772017A (en) | 2015-07-15 |
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| CN201510146873.8A Pending CN104772017A (en) | 2015-03-31 | 2015-03-31 | Special fluidized bed device for active carbon desulphurization |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511064A (en) * | 2017-08-28 | 2017-12-26 | 苏州天佑蓝环保科技有限公司 | Desulfurization denitration method based on activated carbon and low temperature catalyst |
| CN109298140A (en) * | 2018-11-15 | 2019-02-01 | 华电电力科学研究院有限公司 | A kind of continuous automatic liming apparatus |
| CN109596774A (en) * | 2018-11-15 | 2019-04-09 | 华电电力科学研究院有限公司 | A kind of automatic liming apparatus |
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| CN86200329U (en) * | 1986-01-18 | 1987-04-15 | 济南铁路局科学技术研究所 | Fluid-bed furnace with combusting gas |
| CN1323652A (en) * | 2000-05-12 | 2001-11-28 | 中国石油化工集团公司 | Method and equipment for improving fluidization quality |
| CN101544914A (en) * | 2009-03-31 | 2009-09-30 | 中国科学院山西煤炭化学研究所 | Method and device for thermally desulfurizing by synthesis gas dry method and reclaiming sulfur |
| CN102716635A (en) * | 2012-06-12 | 2012-10-10 | 清华大学 | Method and system for simultaneously removing heavy metals and fine particle matters in smoke |
| CN104190244A (en) * | 2014-09-12 | 2014-12-10 | 北京国电清新环保技术股份有限公司 | Multi-stage suspension type flue gas desulfurization device for granular active coke and flue gas desulfurization method thereof |
| CN204395747U (en) * | 2015-03-31 | 2015-06-17 | 山东鑫源环保工程技术有限公司 | The special fluidized bed plant of a kind of active carbon desulfurization |
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2015
- 2015-03-31 CN CN201510146873.8A patent/CN104772017A/en active Pending
Patent Citations (6)
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| CN86200329U (en) * | 1986-01-18 | 1987-04-15 | 济南铁路局科学技术研究所 | Fluid-bed furnace with combusting gas |
| CN1323652A (en) * | 2000-05-12 | 2001-11-28 | 中国石油化工集团公司 | Method and equipment for improving fluidization quality |
| CN101544914A (en) * | 2009-03-31 | 2009-09-30 | 中国科学院山西煤炭化学研究所 | Method and device for thermally desulfurizing by synthesis gas dry method and reclaiming sulfur |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511064A (en) * | 2017-08-28 | 2017-12-26 | 苏州天佑蓝环保科技有限公司 | Desulfurization denitration method based on activated carbon and low temperature catalyst |
| CN109298140A (en) * | 2018-11-15 | 2019-02-01 | 华电电力科学研究院有限公司 | A kind of continuous automatic liming apparatus |
| CN109596774A (en) * | 2018-11-15 | 2019-04-09 | 华电电力科学研究院有限公司 | A kind of automatic liming apparatus |
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