CN2915235Y - Highly efficient dry-method desulfurization unit - Google Patents
Highly efficient dry-method desulfurization unit Download PDFInfo
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- CN2915235Y CN2915235Y CN 200620074412 CN200620074412U CN2915235Y CN 2915235 Y CN2915235 Y CN 2915235Y CN 200620074412 CN200620074412 CN 200620074412 CN 200620074412 U CN200620074412 U CN 200620074412U CN 2915235 Y CN2915235 Y CN 2915235Y
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- desulphurizing
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- desulfurization
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Abstract
The utility provides a high-efficiency dry desulphurizing substance which comprises a solid desulphurizer or desulphurizing agent for the dry desulphirizion of coal smoke. The utility model is a desulphurizing substance comprising desulphurization reactive agents for, adhesive and water and some granules of a certain shape. The desulphurization reactive agents are the oxides, hydroxides or salt of alkali metal or alkaline-earth metal. The granular desulphurizing substance has a spherical shape and the diameters of the spheres are from 1-8 cm. In order to further increase the specific surface area of contact with SO2, the utility model is also possible to bore some channels inside the spheres. The utility model can be evenly piled up in the scrubber or fixed bed with even piling gaps. The substance has small resistance to smoke gas passage and a high flow velocity; in addition, the spheres have the maximum surface area. It can be seen that the desulphurizing substance of spherical shape can effectively increases the gas-solid contact, thus effectively elevating desulphurizing efficiency. The utility model can save considerable amounts of water and energy consumption.
Description
Technical field:
The utility model relates to and is used for solid-state desulfurization body or the desulfurizing agent that coal-fired flue-gas carries out dry desulfurization.
Background technology:
Along with economic and industrial developing rapidly, the coal consumption amount increases year by year, and the coal-fired consumption of China accounts for 75% in energy resource consumption, and the pollution of the coal fire discharged sulfur dioxide in flue gas that goes out has become a serious environmental and polluted a difficult problem.Acid rain and sulfur dioxide are to the pollution of air, and serious harm is to people's health and ecological environment, and each state is the amount of having high input fund exploitation flue gas desulfurization technique all.
Flue gas desulfurization technique can be divided into wet desulfurizing process technology and dry method (semidry method) sulfur removal technology technology.Dry desulfurization and wet desulfurizing process compare, and have low, the less desulfurization body and function amount of small investment, operating cost, not water consumption, low the electric consumption and do not cause new advantages such as secondary pollution.Dry desulfurization is that solid-state desulfurization body (or being called desulfurizing agent) is placed dry desulfurization tower or dry desulfurization fixed bed, under dry state, sulfur in smoke is adsorbed, reactant in the desulfurization body directly and sulfur in smoke carry out chemical reaction, generate new reactant.The desulphurization reaction agent can be oxide, hydroxide or the salt etc. of alkali metal or alkaline-earth metal.Be to have high desulfuration efficiency to one of main technical requirements of desulfurization body wherein, it depends on chemical property and the desulfurization body and the sulfur dioxide contacted specific surface area of component in the desulfurization body.Under the identical situation of chemical composition, the shape difference of dry desulfurization body exists than big-difference desulfuration efficiency.
In the existing desulfurization by dry method, the desulfurization system is become pole shape particle or cellular cylinder grain shape, about 5 millimeters of the particle size diameter of particle, 15 millimeters of length.The desulfurization body of these grain shapes has certain specific area, but the shortcoming that exists is that the accumulation space of desulfurization body particle in desulfurizing tower or fixed bed of pole shape or column is inhomogeneous, it is big inadequately to pile up the space, make flue gas can not evenly penetrate the desulfurization body of accumulation, reduce the gas-solid contact area of desulfurization body, this can reduce desulfuration efficiency.
Summary of the invention:
Inhomogeneous for solving above-mentioned dry desulfurization body accumulation space, reduce the gas-solid contact area of desulfurization body, the technical problem of reduction desulfuration efficiency thus, the applicant has carried out research and has improved, and proposes the dry desulfurization body of another kind of shape, it can solve the problems of the technologies described above, and effectively improves desulfuration efficiency.
The technical solution of the utility model is as follows: the graininess desulfurization body that have definite shape of this dry method desulfurization body for being made of desulphurization reaction agent, binding agent and water, wherein the desulphurization reaction agent is oxide, hydroxide or the salt of alkali metal or alkaline-earth metal, described graininess desulfurization body be shaped as the spherosome shape, the spherosome diameter is 1-8 centimetre.
Because the utility model is the spherosome shape, it can be piled up in desulfurizing tower or fixed bed equably, and the accumulation space is even, and when flue gas passed through spherosome desulfurization body accumulation horizon, resistance was little, the flow velocity height; Secondly, spherosome has maximum surface area.As seen by above-mentioned, the desulfurization physical efficiency of spherosome grain shape effectively increases gas-solid contact area, thereby effectively improves desulfuration efficiency.The utility model can also be saved expending of a large amount of waters and the energy.
Description of drawings:
Fig. 1 is the cut-away view of embodiment 1 of the present utility model;
Fig. 2 is the cut-away view of the utility model embodiment 2.
The specific embodiment:
See Fig. 1, the utility model is the spherosome shape, and composition of the present utility model can be: desulphurization reaction agent wherein can be oxide, hydroxide or the salt of alkali metal or alkaline-earth metal, for example: Na
2O, K
2O, CaO, MgO; NaOH, KOH; Na
2CO
3Deng, also can increase Fe
2O
3Deng the desulfurization composition.Binding agent wherein can be clay, waterglass etc., and its consumption is the 5-8% of desulphurization reaction agent weight.Wherein and add a certain amount of water, its consumption is the 4-6% of desulphurization reaction agent weight.The chemical constituent and the consumption thereof of above-mentioned dry desulfurization body belong to prior art, also can adopt other desulphurization reaction agent and prescriptions thereof.
Embodiment gets calcium oxide 50% by weight the typical case, zinc oxide 10%, and magnesia 10%, sodium carbonate 15%, clay 8%, waterglass 7% mixes each component, adopts existing make-up machine moulding.See Fig. 1, become diameter after the moulding and be 5 centimetres spherical particle 1.See Fig. 2, also can be in moulding, the making diameter is 5 millimeters duct 3 in above-mentioned spherical particle, becomes desulfurization spheroid 2.
Above-mentioned desulfurization body 1 is placed the desulfurization of industrial smoke dry method fixed bed, and desulfurization condition is: 250 ℃ of temperature, and flue gas air speed 2000m/H, the concentration of sulfur dioxide in flue gas is 5500mg/m
3, after desulfurization spheroid 1 particle desulfurization shown in Figure 1, the concentration of fixed bed outlet sulfur dioxide is less than 150mg/m
3Under above-mentioned same desulfurization condition, after the 2 particle desulfurization of Fig. 2 sulphur spheroid, the concentration of sulfur dioxide is less than 125mg/m
3, as seen have duct desulfurization spheroid 2 that higher desulfuration efficiency is arranged.And adopt above-mentioned same component to make diameter is that 5 millimeters, length are 15 millimeters round bar shape desulfurization body particle, carry out desulfurization by above-mentioned same sulfur removal technology condition after, the concentration of fixed bed outlet sulfur dioxide is 320mg/m
3, visible the utility model is significantly improved to desulfuration efficiency.
Claims (3)
1, efficient dry desulfurization body, the graininess desulfurization body that have definite shape of this dry desulfurization body for constituting by desulphurization reaction agent, binding agent and water, wherein the desulphurization reaction agent is oxide, hydroxide or the salt of alkali metal or alkaline-earth metal, and what it is characterized in that described graininess desulfurization body is shaped as the spherosome shape.
2, by the described efficient dry desulfurization body of claim 1, it is characterized in that the diameter of described spherosome shape desulfurization body is 1-8 centimetre.
3, by the described efficient dry desulfurization body of claim 1, it is characterized in that having the duct in the described spherosome shape desulfurization body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074412 CN2915235Y (en) | 2006-06-18 | 2006-06-18 | Highly efficient dry-method desulfurization unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620074412 CN2915235Y (en) | 2006-06-18 | 2006-06-18 | Highly efficient dry-method desulfurization unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2915235Y true CN2915235Y (en) | 2007-06-27 |
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|---|---|---|---|
| CN 200620074412 Expired - Fee Related CN2915235Y (en) | 2006-06-18 | 2006-06-18 | Highly efficient dry-method desulfurization unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067095A (en) * | 2018-02-28 | 2018-05-25 | 沈阳化工大学 | A kind of method that dry-desulphurizer, gypsum, magnesium sulfate and magnesium hydroxide are prepared using dolomite |
| CN109499349A (en) * | 2018-11-21 | 2019-03-22 | 江苏瑞洁环境工程科技有限责任公司 | For reducing the desulfurization particle of CFB recirculating fluidized bed discharge |
| CN111617627A (en) * | 2020-05-19 | 2020-09-04 | 上海兴国惠环保科技有限公司 | Spherical desulfurizing agent and preparation method thereof |
| CN114849419A (en) * | 2022-05-12 | 2022-08-05 | 宁波弗镁瑞环保科技有限公司 | Method and device for removing sulfur trioxide by transforming, purifying and removing sulfur dioxide flue gas |
| CN116510495A (en) * | 2023-05-30 | 2023-08-01 | 曲阜龙坤环保科技有限公司 | Sintering flue gas desulfurizing agent and preparation method thereof |
-
2006
- 2006-06-18 CN CN 200620074412 patent/CN2915235Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108067095A (en) * | 2018-02-28 | 2018-05-25 | 沈阳化工大学 | A kind of method that dry-desulphurizer, gypsum, magnesium sulfate and magnesium hydroxide are prepared using dolomite |
| CN109499349A (en) * | 2018-11-21 | 2019-03-22 | 江苏瑞洁环境工程科技有限责任公司 | For reducing the desulfurization particle of CFB recirculating fluidized bed discharge |
| CN111617627A (en) * | 2020-05-19 | 2020-09-04 | 上海兴国惠环保科技有限公司 | Spherical desulfurizing agent and preparation method thereof |
| CN114849419A (en) * | 2022-05-12 | 2022-08-05 | 宁波弗镁瑞环保科技有限公司 | Method and device for removing sulfur trioxide by transforming, purifying and removing sulfur dioxide flue gas |
| CN114849419B (en) * | 2022-05-12 | 2023-03-10 | 宁波弗镁瑞环保科技有限公司 | Method and device for removing sulfur trioxide through transformation, purification and treatment of sulfur dioxide flue gas |
| CN116510495A (en) * | 2023-05-30 | 2023-08-01 | 曲阜龙坤环保科技有限公司 | Sintering flue gas desulfurizing agent and preparation method thereof |
| CN116510495B (en) * | 2023-05-30 | 2024-03-22 | 曲阜龙坤环保科技有限公司 | Sintering flue gas desulfurizing agent and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070627 Termination date: 20100618 |