CN202136919U - Flue gas desulfurizing and oxidizing device - Google Patents
Flue gas desulfurizing and oxidizing device Download PDFInfo
- Publication number
- CN202136919U CN202136919U CN201120232488U CN201120232488U CN202136919U CN 202136919 U CN202136919 U CN 202136919U CN 201120232488 U CN201120232488 U CN 201120232488U CN 201120232488 U CN201120232488 U CN 201120232488U CN 202136919 U CN202136919 U CN 202136919U
- Authority
- CN
- China
- Prior art keywords
- absorption tower
- flue gas
- communicated
- limestone slurry
- liquid pool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 230000003009 desulfurizing effect Effects 0.000 title abstract 2
- 230000001590 oxidative effect Effects 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 claims abstract description 68
- 235000019738 Limestone Nutrition 0.000 claims abstract description 41
- 239000006028 limestone Substances 0.000 claims abstract description 41
- 238000010521 absorption reaction Methods 0.000 claims abstract description 33
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 24
- 230000023556 desulfurization Effects 0.000 claims abstract description 24
- 230000003647 oxidation Effects 0.000 claims description 38
- 238000007254 oxidation reaction Methods 0.000 claims description 38
- 239000007788 liquid Substances 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 4
- 238000009418 renovation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000007569 slipcasting Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a flue gas desulfurizing and oxidizing device, which comprises an absorption tower, a limestone slurry pool and a limestone slurry circulating spraying system. The limestone slurry pool is positioned outside the absorption tower and is communicated with the bottom of the absorption tower; the limestone slurry circulating spraying system comprises a circulating pump and a spraying tube positioned in the absorption tower; and an inlet of the circulating pump is communicated with the limestone slurry pool and an outlet of the circulating pump is communicated with the spraying tube. On the basis of existing desulfurization equipment, the limestone slurry pool is additionally arranged outside the absorption tower so that the time limit of a desulfurization renovation project is shortened and requirements of halting in short time in a power plant are met; and simultaneously, the device is not required to halt for a long time when the absorption tower is overhauled to discharge slurry and is operated to inject the slurry so that the production efficiency of the power plant is improved.
Description
Technical field
The utility model belongs to the flue gases purification field, is specifically related to a kind of flue gas desulfurization oxidation device.
Background technology
Along with the fast development of science and technology, the influence of environment is also more and more come into one's own, the discharge standard of environment also requires more and more stricter.Coal be relatively commonly used also be the important energy, coal fired power generation is one of most important approach of coal utilization.In a very long time from now on, coal fired power generation will be occupied an leading position.
At present, existing flue gas desulfurization technique comprises process units such as wet desulphurization and dry desulfurization, and wherein the utilization of wet desulphurization technology is the most extensive.Wet process of FGD is the technological process that current 85% left and right sides large thermal power plant in the world adopts, and fume desulfurating absorption tower is its key core equipment, on engineering, has obtained extensive use.The principle of wet flue gas desulfurization absorption tower is to utilize the lime stone alkaline slurry to spray from the top down, and flue gas flows from bottom to top, and lime stone slurry drops in the SO that absorbs in the dropping process in the flue gas
2, reach the SO that removes in the flue gas
2Purpose.
Existing flue gas desulfurization oxidation device is made up of absorption tower, slurries pond, agitator, circulating pump, shower, oxidation fan, slurry pump, rotational flow station, wind-distributing pipe etc., it is characterized in that the slurries pond is arranged in inside, absorption tower, forms whole desulfurizer.The deficiency of its existence is: when existing desulfurizer can not reach the environment protection emission requirement; Need carry out the local system transformation to desulfurizer; To reach the environment protection emission requirement; In the desulfurizer The reconstruction scope, to strengthen the capacity in slurries pond, absorption tower usually, increase the slurries internal circulating load on absorption tower; Existing power plant production task is heavy, requires downtime short, and the way that directly strengthens slurries pond, original absorption tower is long downtime, can not meet the demands on the time.In addition, the long-time shutdown that the slip casting when absorption tower maintenance plasma discharge and operation needs, it is unfavorable also power plant to be produced.
Summary of the invention
In view of this, the utility model provides a kind of flue gas desulfurization oxidation device, need not long-time shutdown when absorption tower maintenance plasma discharge and operation slip casting, shortens the duration of desulfurization transformation project simultaneously, satisfies the requirement of power plant's temporary stoppage.
The flue gas desulfurization oxidation device of the utility model; Comprise the absorption tower, be positioned at outside the absorption tower and the limestone slurry liquid pool and the lime stone slurry circulated sprinkling system that are communicated with the bottom, absorption tower; Said lime stone slurry circulated sprinkling system comprises circulating pump and the shower that is positioned at the absorption tower; The inlet of said circulating pump is communicated with the limestone slurry liquid pool, and outlet is communicated with shower.
Further, said flue gas desulfurization oxidation device also comprises oxidation wind-distributing pipe that is distributed in limestone slurry liquid pool bottom and the oxidation fan that is communicated with the oxidation wind-distributing pipe, and said oxidation wind-distributing pipe top is provided with steam vent;
Further, be provided with the separated bubble plate that is used to separate oxidation wind-distributing pipe and pump entry in the said limestone slurry liquid pool, have the slurries hole on the said separated bubble plate;
Further, said flue gas desulfurization oxidation device also comprises slurry pump and dewatering system rotational flow station, and the inlet of said slurry pump is communicated with the limestone slurry liquid pool, and outlet is communicated with the dewatering system rotational flow station;
Further, be provided with agitator in the said limestone slurry liquid pool.
The beneficial effect of the utility model is: the utility model is on the basis of original desulfurizer; Outside the absorption tower, increase a limestone slurry liquid pool; Shortened the duration of desulfurization transformation project; Satisfy the requirement of power plant's temporary stoppage, need not long-time shutdown when absorption tower maintenance plasma discharge simultaneously and operation slip casting, improved power plant's production efficiency.
Description of drawings
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model is done further to describe in detail below, wherein:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the transverse sectional view on limestone slurry liquid pool and absorption tower.
The specific embodiment
Below will be with reference to accompanying drawing, the preferred embodiment of the utility model is carried out detailed description.
Fig. 1 is the structural representation of the utility model; As shown in the figure; The flue gas desulfurization oxidation device of the utility model comprises absorption tower 1, is positioned at absorption tower 1 is outer and is communicated with 1 bottom, absorption tower limestone slurry liquid pool 2 and lime stone slurry circulated sprinkling system, and said lime stone slurry circulated sprinkling system comprises circulating pump 3 and is positioned at the shower 4 on absorption tower 1; The inlet of said circulating pump 3 is communicated with limestone slurry liquid pool 2, and outlet is communicated with shower 4; Slurries in the limestone slurry liquid pool 2 are transported to absorption tower 1 internal sparger pipe 4 through circulating pump 3 and spray, the abundant and sulfur in smoke reaction of the slurries behind the spray, and reacted slurries directly flow in the limestone slurry liquid pool 2 through 1 bottom, absorption tower.
In the present embodiment, said flue gas desulfurization oxidation device also comprises oxidation wind-distributing pipe 5 that is distributed in limestone slurry liquid pool 2 bottoms and the oxidation fan 6 that is communicated with oxidation wind-distributing pipe 5, and said oxidation wind-distributing pipe 5 tops are provided with steam vent; Oxidation air through oxidation fan 6 pressurization after, blast in the limestone slurry liquid pool 2 through oxidation wind-distributing pipe 5, oxidation air fully with limestone slurry liquid pool 2 in the gypsum slurries haptoreaction, reach the purpose of abundant oxidation.
Fig. 2 is the transverse sectional view on limestone slurry liquid pool and absorption tower; As shown in the figure; As the further improvement of the utility model, be provided with the separated bubble plate 7 that is used to separate oxidation wind-distributing pipe 5 and circulating pump 3 inlets in the said limestone slurry liquid pool 2, have the slurries hole on the said separated bubble plate 7; At a distance from bubble plate 7 can be that xoncrete structure also can be a steel construction; Height and limestone slurry liquid pool 2 the highest liquid levels at a distance from bubble plate 7 are consistent; In order to let slurries mix at a distance from bubble plate 7 both sides; Have the slurries hole of some in the bottom at a distance from bubble plate 7, this slurries hole also can be opened at the sidewall at a distance from bubble plate 7; Prevent that at a distance from bubble plate 7 air bubble from getting in the circulating pump 3, avoid circulating pump 3 that cavitation takes place.
In the present embodiment, said flue gas desulfurization oxidation device also comprises slurry pump 8 and dewatering system rotational flow station 9, and the inlet of said slurry pump 8 is communicated with limestone slurry liquid pool 2, and outlet is communicated with dewatering system rotational flow station 9; Slurries in the limestone slurry liquid pool 2 are delivered to dewatering system rotational flow station 9 with slurry pump 8 and are carried out processed.
In the present embodiment, be provided with agitator 10 in the said limestone slurry liquid pool 2; Agitator 10 is used to prevent the slurries deposition.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although the preferred embodiment through with reference to the utility model is described the utility model; But those of ordinary skill in the art should be appreciated that and can make various changes to it in form with on the details, and the spirit and the scope of the utility model that does not depart from appended claims and limited.
Claims (5)
1. flue gas desulfurization oxidation device; It is characterized in that: comprise absorption tower (1), be positioned at absorption tower (1) outer and limestone slurry liquid pool (2) and lime stone slurry circulated sprinkling system that be communicated with absorption tower (1) bottom; Said lime stone slurry circulated sprinkling system comprises circulating pump (3) and is positioned at the shower (4) of absorption tower (1); The inlet of said circulating pump (3) is communicated with limestone slurry liquid pool (2), and outlet is communicated with shower (4).
2. flue gas desulfurization oxidation device according to claim 1; It is characterized in that: said flue gas desulfurization oxidation device also comprises oxidation wind-distributing pipe (5) that is distributed in limestone slurry liquid pool (2) bottom and the oxidation fan (6) that is communicated with oxidation wind-distributing pipe (5), and said oxidation wind-distributing pipe (5) top is provided with steam vent.
3. flue gas desulfurization oxidation device according to claim 2; It is characterized in that: be provided with the separated bubble plate (7) that is used to separate oxidation wind-distributing pipe (5) and circulating pump (3) inlet in the said limestone slurry liquid pool (2), have the slurries hole on the said separated bubble plate (7).
4. flue gas desulfurization oxidation device according to claim 3; It is characterized in that: said flue gas desulfurization oxidation device also comprises slurry pump (8) and dewatering system rotational flow station (9); The inlet of said slurry pump (8) is communicated with limestone slurry liquid pool (2), and outlet is communicated with dewatering system rotational flow station (9).
5. according to any described flue gas desulfurization oxidation device of claim 1 to 4, it is characterized in that: be provided with agitator (10) in the said limestone slurry liquid pool (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232488U CN202136919U (en) | 2011-07-04 | 2011-07-04 | Flue gas desulfurizing and oxidizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120232488U CN202136919U (en) | 2011-07-04 | 2011-07-04 | Flue gas desulfurizing and oxidizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202136919U true CN202136919U (en) | 2012-02-08 |
Family
ID=45548000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120232488U Expired - Lifetime CN202136919U (en) | 2011-07-04 | 2011-07-04 | Flue gas desulfurizing and oxidizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202136919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013318A (en) * | 2015-07-31 | 2015-11-04 | 安徽省化工设计院 | Flue gas desulfurization system |
| CN105289265A (en) * | 2015-10-14 | 2016-02-03 | 安徽安纳达钛业股份有限公司 | Circulating fluidized bed boiler efficient wet process desulfurization process |
-
2011
- 2011-07-04 CN CN201120232488U patent/CN202136919U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013318A (en) * | 2015-07-31 | 2015-11-04 | 安徽省化工设计院 | Flue gas desulfurization system |
| CN105289265A (en) * | 2015-10-14 | 2016-02-03 | 安徽安纳达钛业股份有限公司 | Circulating fluidized bed boiler efficient wet process desulfurization process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120208 |
|
| CX01 | Expiry of patent term |