CN101920164A - Horizontal dense-phase circulating fluidizing dry-tower desulfurization device - Google Patents
Horizontal dense-phase circulating fluidizing dry-tower desulfurization device Download PDFInfo
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- CN101920164A CN101920164A CN 201010205981 CN201010205981A CN101920164A CN 101920164 A CN101920164 A CN 101920164A CN 201010205981 CN201010205981 CN 201010205981 CN 201010205981 A CN201010205981 A CN 201010205981A CN 101920164 A CN101920164 A CN 101920164A
- Authority
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- Prior art keywords
- chamber
- close phase
- gas
- dense
- phase
- Prior art date
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- 230000003009 desulfurizing Effects 0.000 title claims abstract description 54
- 238000006477 desulfuration reactions Methods 0.000 title claims abstract description 31
- 239000007789 gases Substances 0.000 claims abstract description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003546 flue gases Substances 0.000 claims abstract description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 238000005243 fluidization Methods 0.000 claims description 10
- 239000007787 solids Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006243 chemical reactions Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001890 sulfur dioxide Inorganic materials 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound 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- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
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Abstract
Description
Technical field
The present invention relates to a kind of horizontal dense-phase circulating fluidizing dry-tower flue gas desulfur device, belong to field of environment engineering.
Background technology
Reducing sulfur dioxide (SO2) emissions is emphasis of country's environmental protection the Eleventh Five-Year Plan period, is one of key link of steel and iron industry minimizing environmental pollution.The pollution sources of steel and iron industry sulfur dioxide are mainly sintering circuit, and its discharge capacity accounts for more than 50% of steel industry total emission volumn.
The dense-phase tower treatment process that development in recent years is got up has tangible advantage.But in present existing circular dense phase fluidizing desulfurization apparatus, has only a chamber in the close phase circulating sulfuration desulphurization plant, as Chinese patent: ZL200720103180.1 " a kind of circular dense phase fluidizing desulfurization apparatus ".A kind of circular dense phase fluidizing desulfurization apparatus of this Patent publish only is provided with a chamber, and there are equipment complexity, the energy consumption shortcomings such as bed stops up, floor space is big of collapsing more greatly, easily in promptly so-called reaction zone.
Summary of the invention
The objective of the invention is for solve the power consumption that existing dense-phase circulating fluidized flow absorber desulfurization device exists higher, step on problems such as bed stops up, floor space is big easily, adopt two the chamber designs in close phase chamber and ciculation fluidized chamber, under constant situation of reaction time, the prolong smoke route via, thereby strengthen the collision opportunity of desulfurizing agent and flue gas, improve desulfurization degree; Close phase chamber is horizontal, and ciculation fluidized chamber is vertical, and adds shaft in close phase chamber, and the collision opportunity of desulfurizing agent and flue gas is strengthened, and causes desulfuration efficiency to improve.
A kind of horizontal dense-phase circulating fluidizing dry-tower desulfurization device of the present invention, described device comprise ciculation fluidized chamber (1), close phase chamber (2), Roots blower (3), feed pipe (4), gas approach (5), booster fan (6), sack cleaner (7);
Described ciculation fluidized chamber is arranged on the high order end of device;
Described close phase chamber is arranged on the right side of ciculation fluidized chamber (1), and is communicated with ciculation fluidized chamber (1);
Described sack cleaner (7) is in top, close phase chamber (2);
The below of described sack cleaner (7) is connected with feed pipe (4), and the solid, powdery desulfurizing agent that separates in the sack cleaner (7) enters into close phase chamber (2) by feed pipe (4), does not establish the place of feed pipe (4), and desulfurizing agent directly falls into close phase chamber (2);
Described feed pipe (4) links to each other with Roots blower (3) by pipeline, and the desulfurizing agent that falls into feed pipe (4) is transported to close phase chamber (2) and fluidisation under the wind-force of Roots blower (3);
Described gas approach (5) is arranged on the close phase chamber (2);
Described booster fan (6) is connected with sack cleaner (7), promotes the whole system blast;
It is characterized in that: described ciculation fluidized chamber (1) is for vertical, and close phase chamber (2) is horizontal.
Described device also comprises: shaft (8), tracheae (9), gas distribution pipe (10);
Described shaft (8) is installed in the close phase chamber, for the desulfurizing agent in the close phase chamber and flue gas provide more collision opportunity, improves desulfuration efficiency;
Described tracheae (9) links to each other with Roots blower, for ciculation fluidized chamber and close phase chamber provide fluidization wind;
Described gas distribution pipe (10) is installed in the end of tracheae (9) and feed pipe (4), and the wind-force of Roots blower blows to all directions via tracheae (10).
Further, the chain rotating speed of described shaft (8) is 50-1000 rev/min, chain stripe pitch 10-500mm, diameter chain 1-30mm.
Further, described gas approach (5) is arranged on the right outside of close phase chamber (2), and flue gas is vertically from the gas approach access to plant.
Further, described gas approach (5) also is arranged on the preceding outside, front of close phase chamber (2), and flue gas is vertically from the gas approach access to plant.
Further, described feed pipe (4) quantity is 4.
Further, described tracheae (9) has two, links to each other with Roots blower (3) respectively, and wherein one is arranged in the close phase chamber (2), and another root is arranged in the ciculation fluidized chamber (1).
Close phase of the present invention chamber is that horizontal, ciculation fluidized chamber is vertical, horizontal part is owing to be arranged on the below of sack cleaner, therefore saved floor space for release unit, the close mutually indoor shaft of also having installed, the stirring of shaft is that the collision of desulfurizing agent and flue gas has increased chance, has therefore improved desulfuration efficiency; Vertical part is provided the wind-force fluidisation by outside Roots blower after making ash be deposited to the bottom, and desulfurizing agent seethes with excitement up and down, reaches the desulfurization purpose.Whole system is under constant prerequisite of reaction time, and the route that flue gas passes through increases, so desulfurizing agent increases with the flue gas collision opportunity, causes desulfurizing machine to increase, the desulfuration efficiency raising.Reduced the load of sack cleaner, efficiency of dust collection and service life are improved.
Ciculation fluidized chamber of the present invention is adopted the ciculation fluidized and wind-force of wind-force to adopt to add the roots blower air blast and is realized, the desulfurizing agent that sack cleaner comes out is delivered to close chamber mutually by the conveying pipeline that links to each other with Roots blower and recycles, the quantity of the Roots blower in this device is 1-6, batcher is not installed, has therefore been saved power consumption.Apparatus structure uniqueness after the improvement, equipment be simple, easily the dimension inspection and energy-conservation, operating cost is low.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a partial structurtes schematic diagram of the present invention, and promptly gas distribution pipe 10 is installed in the structural representation on the feed pipe 4.
The specific embodiment
Below in conjunction with accompanying drawing, specifically set forth embodiment of the present invention.
As shown in Figure 1, a kind of horizontal dense-phase circulating fluidizing dry-tower desulfurization device of the present invention, described device comprise ciculation fluidized chamber 1, close phase chamber 2, Roots blower 3, feed pipe 4, gas approach 5, booster fan 6, sack cleaner 7; Ciculation fluidized chamber 1 of the present invention is vertical, is arranged on the high order end of device, and flue gas and desulfurizing agent be abundant haptoreaction in ciculation fluidized chamber 1, realizes desulfurization.Close phase chamber 2 is horizontal, is arranged on the right side of ciculation fluidized chamber 1, and is communicated with ciculation fluidized chamber 1; And because therefore horizontal part has saved floor space for release unit owing to be arranged on the below of sack cleaner.Sack cleaner 7 is above close phase chamber 2.The desulfurizing agent that separates from sack cleaner 7 can enter close phase chamber 2 once more and realize recycling.The below of sack cleaner 7 is connected with feed pipe 4, and the solid, powdery desulfurizing agent that separates in the sack cleaner 7 enters into close phase chamber 2 by feed pipe 4, and the place of not establishing feed pipe 4, desulfurizing agent directly falls into close phase chamber 2.
Must have certain power in the feed pipe 4, make desulfurizing agent can reenter close phase chamber 2 and be fluidized.Therefore, feed pipe 4 links to each other with Roots blower 3 by pipeline, and under the wind-force effect of Roots blower 3, the desulfurizing agent that falls in the sack cleaner 7 is transported to close phase chamber 2 and fluidisation.Simultaneously, feed pipe 4 also makes and makes the flue gas that enters wherein react with the desulfurizing agent better mixing by the blast that is full of in the close phase chamber 2.
Gas approach 5 is arranged on the close phase chamber 2.It can comprise two kinds of set-up modes, and one is arranged on the right outside of close phase chamber 2, and flue gas is vertically from the gas approach access to plant.Perhaps can be arranged on the outside front place of close phase chamber 2, flue gas is vertically from the gas approach access to plant.Booster fan 6 is connected with sack cleaner 7, promotes the whole system blast.
Described device also comprises: shaft 8, tracheae 9, gas distribution pipe 10.Shaft 8 is installed in the close phase chamber 2, for the desulfurizing agent in the close phase chamber and flue gas provide more collision opportunity, improves desulfuration efficiency.The chain rotating speed of shaft 8 is 50-1000 rev/min, chain stripe pitch 10-500mm, diameter chain 1-30mm.Tracheae 9 links to each other with Roots blower, for ciculation fluidized chamber and close phase chamber provide fluidization wind.Tracheae 9 preferably is provided with two among the present invention, links to each other with Roots blower 3 respectively, and wherein one is arranged in the close phase chamber 2, provides blast to close phase chamber 2.Another root is arranged in the ciculation fluidized chamber 1, for ciculation fluidized chamber 1 provides fluidisation power.Gas distribution pipe 10 is installed in the end of tracheae 9 and feed pipe 4, and the wind-force of Roots blower blows to all directions via gas distribution pipe 10.
The course of work of the present invention is described in detail in detail below.
Among the present invention, flue gas enters in the close phase chamber 2 from gas approach 5, reacts with the collision of wherein desulfurizing agent.The bulky grain desulfurizing agent circulates in close phase chamber 2 and floats, and the small and light desulfurizing agent of part enters ciculation fluidized chamber 1.And under the effect that adds Roots blower 3, by tracheae 9, the fluidisation of in ciculation fluidized chamber 1, seething with excitement up and down, and continuation and smoke reaction, the flue gas through purifying enters in the sack cleaner 7 in company with the partial desulfurization agent.Flue gas purifies in sack cleaner 7.The desulfurizing agent that comes out from sack cleaner 7 enters the close phase chamber once more through feed pipe 4, continues reaction with the flue gas of new access to plant in close chamber mutually.The place of feed pipe 4 is not set, and desulfurizing agent then directly falls into close phase chamber 2.
As shown in Figure 2, shaft 8 of the present invention is installed in the close phase chamber 1, and the chain rotating speed of shaft is 50-1000 rev/min, chain stripe pitch 10-500mm, diameter chain 1-30mm.Shaft makes 8 desulfurizing agent is fully disperseed, and makes it to mix with flue gas uniformly, and desulfurizing agent and flue gas in the close phase chamber provide more collision opportunity, reach the higher desulfuration effect, for improving desulfuration efficiency.
As shown in Figure 3, the end at tracheae 9 of the present invention and feed pipe 4 all is equipped with gas distribution pipe 10.The wind-force of Roots blower blows to all directions via gas distribution pipe 10.The shape of gas distribution pipe 10 as shown in Figure 3, the wind-force of Roots blower 3 blows to all directions via gas distribution pipe 10 back, guaranteed wind-force in the desulfurizing tower all directions evenly, realize the even fluidisation of material.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102059815A CN101920164B (en) | 2010-06-12 | 2010-06-12 | Horizontal dense-phase circulating fluidizing dry-tower desulfurization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102059815A CN101920164B (en) | 2010-06-12 | 2010-06-12 | Horizontal dense-phase circulating fluidizing dry-tower desulfurization device |
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| CN101920164A true CN101920164A (en) | 2010-12-22 |
| CN101920164B CN101920164B (en) | 2012-09-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228781A (en) * | 2011-04-21 | 2011-11-02 | 北京科技大学 | SDFGD (semi-dry flue gas desulfurization) device |
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| CN101402019A (en) * | 2008-11-06 | 2009-04-08 | 北京博朗环境工程技术股份有限公司 | Flue gas desulfurization technique of return current circulating fluidized bed in flow equalizing field |
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| EP0504476A1 (en) * | 1991-03-21 | 1992-09-23 | General Electric Environmental Services, Inc. | Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream |
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| CN102228781A (en) * | 2011-04-21 | 2011-11-02 | 北京科技大学 | SDFGD (semi-dry flue gas desulfurization) device |
| CN102228781B (en) * | 2011-04-21 | 2013-01-30 | 北京科技大学 | SDFGD (semi-dry flue gas desulfurization) device |
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| CN101920164B (en) | 2012-09-19 |
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