CN105435577A - Multilayer heterogeneous fluidized bed device for activated carbon desulfurization - Google Patents
Multilayer heterogeneous fluidized bed device for activated carbon desulfurization Download PDFInfo
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- CN105435577A CN105435577A CN201510822677.8A CN201510822677A CN105435577A CN 105435577 A CN105435577 A CN 105435577A CN 201510822677 A CN201510822677 A CN 201510822677A CN 105435577 A CN105435577 A CN 105435577A
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- absorption tower
- active carbon
- fluidized bed
- multilayer heterogeneous
- carbon desulfurization
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Abstract
The invention provides a multilayer heterogeneous fluidized bed device for activated carbon desulfurization. The device is characterized by comprising a booster fan, a cooling machine, an absorption tower, a dust remover, a feeding machine, a distribution valve, storage equipment and a high-temperature elevator, wherein the booster fan is communicated with one side of the lower part of the absorption tower; the cooling machine is communicated with the bottom of the absorption tower; the top of the absorption tower is connected with the dust remover; a discharge port of the feeding machine is communicated with the side wall of the upper part of the absorption tower; the distribution valve is connected with one side of the absorption tower; the storage equipment is connected with the distribution valve; n baffle plates are mounted at the upper part of the inside of the absorption tower, and n is larger than or equal to 2; m layers of distribution plates are mounted at the lower part of the inside of the absorption tower, and m is larger than or equal to 2; a feeding port of the high-temperature elevator is connected with a discharge port of the storage equipment, and a discharge port of the high-temperature elevator is connected with a feeding port of the feeding machine. The multilayer heterogeneous fluidized bed device has the advantages of high desulfurization efficiency, low operation and maintenance cost and the like.
Description
Technical field
The present invention relates to the environmental protection technical field of industrial flue gas cleaning, particularly a kind of multilayer heterogeneous fluidized bed plant of active carbon desulfurization.
Background technology
At present, flue gas SO is controlled
2discharging most effective method is flue gas desulfurization process.By carrying out desulfurization process to coal-fired flue-gas, can control SO effectively
2discharge.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 the dioxin in flue gas, nitrogen oxide and other nuisance, be a kind of desirable flue gas desulfurization processing method.
Current most widely used active carbon desulfurization technique many employings fixed bed or moving bed adsorption process, but there is following problem in this flow process application process: (1) bed heat-transfer effect is poor, and active carbon utilization rate is low; (2) bed resistance is excessive, causes system cloud gray model expense high; (3) system cloud gray model poor continuity, active carbon change difficulty, are unfavorable for that active carbon regenerates in time and recycles; (4) complex process equipment, space hold greatly, cause the shortcomings such as the initial cost increase of equipment, hinder applying of active carbon desulfurization technique.
Summary of the invention
In order to solve the problem, the present invention proposes a kind of multilayer heterogeneous fluidized bed plant of active carbon desulfurization, comprise booster fan, cooler, absorption tower, deduster, batcher, distributing valve, bunkerage and high temperature elevator, described booster fan is communicated with the side, below on absorption tower, cooler is communicated with the bottom on absorption tower, the top on absorption tower is connected with deduster, the discharging opening of batcher is communicated with the top sidewall on absorption tower, distributing valve is connected with the side on absorption tower, bunkerage is connected with distributing valve, the inner upper on absorption tower is provided with n convection current flap, n >=2, below is provided with m layer distribution grid, m >=2, the charging aperture of high temperature elevator is connected with the discharging opening of bunkerage, the discharging opening of high temperature elevator is connected with the charging aperture of batcher.
Further, the side, below on described absorption tower is connected with igniter.
Further, described igniter is diesel ignition device.
Further, described convection current flap is protruded ripple plate.
Further, described convection current flap arranges 4 pieces.
Further, described distribution grid funnel-cap type distribution grid.
Further, the described distribution grid number of plies is two-layer.
Further, described high temperature elevator is chain-type or rail mounted.
Further, in the middle part of described absorption tower, side is connected with steam generator or NH
3hold-up tank.
Further, described steam generator is gas fired-boiler.
The multilayer heterogeneous fluidized bed plant of a kind of active carbon desulfurization that the present invention proposes, short grained irregularity active carbon can be utilized, convection current flap is adopted to evacuate material and be uniformly distributed above absorption tower, bottom adopts double-layer separate fabric swatch to carry out the abundant purification of flue gas, both the time of staying demand of granule active carbon desulfurization had been met, reduce multi-compartment bed system pressure by convection current flap substitutional theorem plate simultaneously, there is saving floor space, automaticity is high, desulfuration efficiency is high, one-time investment expense is comparatively saved, operation maintenance is comparatively simple, the advantages such as the energy consumption of utilization rate height and reduction booster fan.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multilayer heterogeneous fluidized bed plant of a kind of active carbon desulfurization of the present invention.
Fig. 2 is the structural representation of the multilayer heterogeneous fluidized bed plant of band separating sieve.
Fig. 3 is the structural representation of multilayer heterogeneous fluidized bed plant desulfurization basis realizing denitration.
In figure: 1-booster fan, 2-cooler, 3-absorption tower, 4-deduster, 5-batcher, 6-distributing valve, 7-bunkerage, 8-convection current flap, 9-distribution grid, 10-high temperature elevator, 11-igniter, 12-active carbon, 13-high pressure positive blower, 14-steam generator, 15-separating sieve, 16-NH
3hold-up tank.
Detailed description of the invention
Be described in detail below in conjunction with the detailed description of the invention of accompanying drawing to the multilayer heterogeneous fluidized bed plant of a kind of active carbon desulfurization of the present invention, this embodiment is only not used in for illustration of the present invention and limits the scope of the invention, and the amendment of those skilled in the art to the various equivalent form of value of the present invention all falls within the application's claims limited range.
Embodiment 1
As shown in Figure 1, the multilayer heterogeneous fluidized bed plant of a kind of active carbon desulfurization that the present invention proposes, comprise booster fan 1, cooler 2, absorption tower 3, deduster 4, batcher 5, distributing valve 6, bunkerage 7 and high temperature elevator 10, booster fan 1 is communicated with the side, below on absorption tower 3, cooler 2 is communicated with the bottom on absorption tower 3, the top on absorption tower 3 is connected with deduster 4, the discharging opening of batcher 5 is communicated with the top sidewall on absorption tower 3, distributing valve 6 is connected with the side on absorption tower 3, bunkerage 7 is connected with distributing valve 6, the inner upper on absorption tower 3 is provided with n convection current flap 8, n >=2, below is provided with m layer distribution grid 9, m >=2, the charging aperture of high temperature elevator 10 is connected with the discharging opening of bunkerage 7, the discharging opening of high temperature elevator 10 is connected with the charging aperture of batcher 5, the side, below on absorption tower 3 is connected with igniter 11, igniter 11 can be diesel ignition device or gas igniter, igniter 11 in the present embodiment is diesel ignition device, distributing valve 6 is the pneumatic operated valve that high pressure positive blower 13 controls, by blast velocity control flow, distributing valve 6 air compartment is three independent air compartments, controlled by corresponding motor-driven valve below, convection current flap 8 can be porous plate, also can be corrugated plating, protruded ripple plate is selected in the present embodiment, the number of convection current flap 8 is determined according to active carbon number and flue gas flow rate, arrange 4 pieces in the present embodiment, the form of distribution grid 9 can be multihole distributor, also can be funnel-cap type distribution grid, funnel-cap type distribution grid is used in the present embodiment, distribution grid pressure is no more than 2kpa, the number of plies of distribution grid 9 is determined according to desulfuration efficiency and operation power consumption, distribution grid 9 number of plies used in the present embodiment is two-layer, high temperature elevator 10 can by the temperature increase of active carbon 12 more than 100 DEG C, require airtight, can be chain-type or rail mounted, high temperature elevator 10 in the present embodiment is chain-type, in the middle part of absorption tower 3, side is also connected with steam generator 14, steam generator 14 is gas fired-boiler, steam generator 14, for low pressure steam boiler, pressure is at below 10kpa, it can be gas fired-boiler.
When the multilayer heterogeneous fluidized bed plant of a kind of active carbon desulfurization of the present invention works, first active carbon 12 is distributed into two strands of materials through distributing valve 6, these two strands of materials can regulate according to field working conditions, ratio is 1:3 in the present embodiment, / 4th distribution grids 9 entered bottom absorption tower 3 supplement substrate material, 3/4ths enter bunkerage 7, the active carbon 12 entering bunkerage 7 enters the feed bin of batcher 5 by high temperature elevator 10, active carbon 12 in batcher 5 enters absorption tower 3 by pipeline, active carbon 12 is successively through the convection current flap 8 of inside, absorption tower 3, distribution grid 9, directly enter the active carbon mixing on distribution grid 9, reach absorption saturated after enter cooler 2 and cool, absorption tower 3 can reach adsorption temp by smoke pre-heating or carry out preheating by igniter 11, flue gas after dedusting is by entering absorption tower 3 after booster fan 1 supercharging, active carbon 12 is kicked up through distribution grid 9 by flue gas, active carbon 12 is made to present fluidized state in absorption tower 3, flue gas and active carbon 12 counter-current operation, flue gas is fully contacted with active carbon 12, SO in flue gas
2adsorbed by active carbon 12, the steam that steam generator 14 produces enters in absorption tower 3 by pipeline, steam, SO
2and the oxygen in absorption tower 3 reacts generation sulfuric acid under the catalytic action of active carbon 12, the flue gas of desulfurization after-purification removes the fine powder of granule Jiao through deduster 4, then chimney is entered, active carbon in cooler 2 enters distributing valve 6 through thermal regeneration and redistributes, improve the utilization ratio of active carbon 12, reduce costs.
Embodiment 2
As shown in Figure 2, on the basis of embodiment 1, between high temperature elevator 10 and batcher 5, be connected with separating sieve 15, utilize separating sieve 15 to screen through the active carbon 12 of high temperature elevator 10 and enter batcher 5 again, this can be less than the particle removal of 1mm, reduces the dust that flue gas may be taken away.
Embodiment 3
As shown in Figure 3, on the basis of embodiment 1, steam generator 14 is changed into NH
3hold-up tank 16, layering passes into ammonia, can realize denitration on desulfurized effect basis.
The multilayer heterogeneous fluidized bed plant of a kind of active carbon desulfurization of the present invention is not high to activated carbon particle size, regularity and requirement of strength, can adopt the low price desulphurized aetivated carbons such as crushing activated carbon, therefore greatly reduces the operating cost of desulfurization project.Higher by apparatus of the present invention desulfuration efficiency, other discarded objects such as combined denitration demercuration can also be realized, adopt the inner member form of convection current flap coupling distribution grid simultaneously, reduce device resistance, thus the energy consumption of reduction booster fan is more than 40%, apparatus of the present invention structure is simple, and operation expense is lower.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Claims (10)
1. the multilayer heterogeneous fluidized bed plant of an active carbon desulfurization, it is characterized in that, comprise booster fan (1), cooler (2), absorption tower (3), deduster (4), batcher (5), distributing valve (6), bunkerage (7) and high temperature elevator (10), described booster fan (1) is communicated with the side, below of absorption tower (3), cooler (2) is communicated with the bottom of absorption tower (3), the top on described absorption tower (3) is connected with deduster (4), the discharging opening of described batcher (5) is communicated with the top sidewall of absorption tower (3), described distributing valve (6) is connected with the side of absorption tower (3), described bunkerage (7) is connected with distributing valve (6), the inner upper on described absorption tower (3) is provided with n convection current flap (8), n >=2, below is provided with m layer distribution grid (9), m >=2, the charging aperture of described high temperature elevator (10) is connected with the discharging opening of bunkerage (7), the discharging opening of high temperature elevator (10) is connected with the charging aperture of batcher (5).
2. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 1, is characterized in that, the side, below of described absorption tower (3) is connected with igniter (11).
3. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 2, is characterized in that, described igniter (11) is diesel ignition device.
4. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 1, is characterized in that, described convection current flap (8) is protruded ripple plate.
5. the multilayer heterogeneous fluidized bed plant of the active carbon desulfurization according to claim 1 or 4, is characterized in that, described convection current flap (8) arranges 4 pieces.
6. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 1, is characterized in that, described distribution grid (9) is funnel-cap type distribution grid.
7. the multilayer heterogeneous fluidized bed plant of the active carbon desulfurization according to claim 1 or 6, is characterized in that, described distribution grid (9) number of plies is two-layer.
8. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 1, is characterized in that, described high temperature elevator (10) is chain-type or rail mounted.
9. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 1, is characterized in that, side, described absorption tower (3) middle part is connected with steam generator (14) or NH
3hold-up tank (16).
10. the multilayer heterogeneous fluidized bed plant of active carbon desulfurization according to claim 9, is characterized in that, described steam generator (14) is gas fired-boiler.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029534A (en) * | 2017-06-07 | 2017-08-11 | 北京清新环境技术股份有限公司 | A kind of broken burnt removing multiple pollutant of wide particle diameter and its circulatory system of regeneration |
| CN111111362A (en) * | 2019-12-28 | 2020-05-08 | 江苏新中金环保科技股份有限公司 | Flue gas desulfurization and denitrification complete equipment based on efficient catalysis technology |
| CN111185074A (en) * | 2020-01-13 | 2020-05-22 | 高邮康博环境资源有限公司 | Environment-friendly desulfurization tower flue gas treatment and purification equipment for treating solid waste materials |
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| JPH11300139A (en) * | 1998-04-20 | 1999-11-02 | Ishikawajima Harima Heavy Ind Co Ltd | Desulfurizer |
| CN101856587A (en) * | 2010-06-02 | 2010-10-13 | 山东大学 | Fluidized activated carbon combined desulfurization and denitrification process |
| 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 |
| CN205435367U (en) * | 2015-11-24 | 2016-08-10 | 北京清新环境技术股份有限公司 | Different structure fluidized bed device of multilayer of active carbon desulfurization |
-
2015
- 2015-11-24 CN CN201510822677.8A patent/CN105435577B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300139A (en) * | 1998-04-20 | 1999-11-02 | Ishikawajima Harima Heavy Ind Co Ltd | Desulfurizer |
| CN101856587A (en) * | 2010-06-02 | 2010-10-13 | 山东大学 | Fluidized activated carbon combined desulfurization and denitrification process |
| 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 |
| CN205435367U (en) * | 2015-11-24 | 2016-08-10 | 北京清新环境技术股份有限公司 | Different structure fluidized bed device of multilayer of active carbon desulfurization |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029534A (en) * | 2017-06-07 | 2017-08-11 | 北京清新环境技术股份有限公司 | A kind of broken burnt removing multiple pollutant of wide particle diameter and its circulatory system of regeneration |
| CN111111362A (en) * | 2019-12-28 | 2020-05-08 | 江苏新中金环保科技股份有限公司 | Flue gas desulfurization and denitrification complete equipment based on efficient catalysis technology |
| CN111185074A (en) * | 2020-01-13 | 2020-05-22 | 高邮康博环境资源有限公司 | Environment-friendly desulfurization tower flue gas treatment and purification equipment for treating solid waste materials |
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