CN203725023U - Sodium silicate feeding device of fume prewashing tower - Google Patents
Sodium silicate feeding device of fume prewashing tower Download PDFInfo
- Publication number
- CN203725023U CN203725023U CN201420105526.1U CN201420105526U CN203725023U CN 203725023 U CN203725023 U CN 203725023U CN 201420105526 U CN201420105526 U CN 201420105526U CN 203725023 U CN203725023 U CN 203725023U
- Authority
- CN
- China
- Prior art keywords
- waterglass
- slurry tank
- sodium silicate
- chemicals dosing
- dosing plant
- 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
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 239000004115 Sodium Silicate Substances 0.000 title abstract 10
- 229910052911 sodium silicate Inorganic materials 0.000 title abstract 10
- 239000003517 fume Substances 0.000 title abstract 3
- 239000002002 slurry Substances 0.000 claims abstract description 60
- 239000000843 powder Substances 0.000 claims abstract description 16
- 235000019353 potassium silicate Nutrition 0.000 claims description 81
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 239000003546 flue gas Substances 0.000 claims description 29
- 239000000126 substance Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract description 16
- 229910000040 hydrogen fluoride Inorganic materials 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 239000006096 absorbing agent Substances 0.000 abstract 2
- -1 fluoride ions Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006115 defluorination reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a sodium silicate feeding device of fume prewashing tower. The device consists of a sodium silicate powder cabin (1), a rotating feeder (4), a spiral conveyer (5), a sodium silicate slurry tank (6), a sodium silicate slurry tank stirrer (7) and a slurry circulation pipeline (12), wherein a pipeline which is connected to the top of the sodium silicate slurry tank (6) is arranged at the bottom of the sodium silicate powder cabin (1); the rotating feeder (4) is arranged at the upper part of the connecting pipeline; the spiral conveyer (5) is arranged at the lower part of the connecting pipeline; the sodium silicate slurry tank stirrer (7) is arranged inside the sodium silicate slurry tank (6); the slurry circulation pipeline (12) is connected outside the sodium silicate slurry tank (6); two feeding points are arranged on the slurry circulation pipeline (12) and are connected with the prewashing tower through pipelines. By adopting the device, the hydrogen fluoride inside fume can be effectively eliminated, so that the absorption effect of an absorbing agent is improved, the content of fluoride ions in the absorbing agent of an absorbing tower is reduced, the materials for equipment, the pipelines and valves are saved, and the investment cost is lowered.
Description
Technical field
The utility model relates to flue gas desulfurization technique field, relates in particular to a kind of waterglass chemicals dosing plant of flue gas prewashing tower.
Background technology
Conventional calcium method sulfur removal technology is not also suitable for thermal power plant, sulphur coal area, and huge operating cost and huge transport pressure become the great burden of calcium method desulfurizing item operation; And organic amine sulfur removal technology transportation intensity is low, operating cost is low, and the market of generation accessory substance is also relatively good, can, effectively by sulfur dioxide recovery, turn waste into wealth.The economic benefit of amine process desulfurizing item, environmental benefit and social benefit are all highly significants, so in sulphur coal area, organic amine sulfur removal technology is more applicable than conventional calcium method sulfur removal technology.
Flue gas, before entering absorption tower, need wash by prewashing column, removes the hydrogen fluoride in flue gas, after preventing that hydrogen fluoride from entering absorption tower and contact with absorption liquid with flue gas, affects the corrosivity of assimilation effect and the increase absorption liquid of absorption liquid.Waterglass chemicals dosing plant is set, water glass solution is added in prewashing column washing slurries, waterglass is fully reacted with the hydrogen fluoride in flue gas, generate prodan and be dissolved in prewashing column slurries, thereby remove the hydrogen fluoride in flue gas.
Utility model content
The utility model object is to provide a kind of waterglass chemicals dosing plant of flue gas prewashing tower.
The technical scheme that the utility model is taked is:
The waterglass chemicals dosing plant of flue gas prewashing tower of the present utility model is comprised of waterglass powder storehouse, rotary feeder, auger conveyor, waterglass slurry tank, waterglass slurry tank agitator and slurries circulation line, bottom, waterglass powder storehouse has pipeline to connect the top of waterglass slurry tank, the top of described connecting pipe is provided with rotary feeder, and bottom is provided with auger conveyor; In waterglass slurry tank, be provided with waterglass slurry tank agitator; Waterglass slurry tank outside is connected with slurries circulation line, and slurries circulation line is provided with two chemical feeding points, by pipeline, connects prewashing tower.
Waterglass powder storehouse is provided with waterglass carrier pipe, and waterglass carrier pipe is provided with sack cleaner.
The bottom in waterglass powder storehouse is provided with heater.
Waterglass slurry tank top is provided with working water inlet tube.
Slurries circulation line is provided with y-type filter.
Slurries circulation line is provided with waterglass slush pump.
Powdery waterglass is configured to water glass solution, needs to select the water glass solution of suitable modulus, according to dissolution velocity, configuration is applicable to the water glass solution of adding consistency.Water glass solution after configuration is added to prewashing column, after carrying out fully mixing with prewashing column slurries, effectively contact with flue gas, reach and remove hydrofluoric effect in flue gas.
By waterglass, add prewashing column washing slurries, when flue gas enters prewashing column and washs, hydrogen fluoride in flue gas reacts with waterglass and generates prodan, hydrogen fluoride in flue gas is effectively removed, in order to avoid hydrogen fluoride enters absorption tower with flue gas, absorption liquid is polluted, affect assimilation effect and increase the corrosivity of absorption liquid.
Due to waterglass and hydrogen fluoride reaction very fast, when flue gas contacts with pre-wash slurries, hydrogen fluoride and waterglass generate rapidly prodan and are dissolved in pre-wash slurries, but prewashing column rises to more than 95% hydrofluoric clearance in flue gas.
Because fluorine ion is extremely strong in the corrosivity under acid condition, in prewashing column, the hydrogen fluoride in flue gas is effectively removed, in absorption tower, the fluorine ion of absorption liquid also can reduce, thereby reduces the material of the equipment, pipeline and the valve that contact with absorbent, the cost of reducing investment outlay.
Good effect of the present utility model is as follows:
The waterglass chemicals dosing plant of flue gas prewashing tower of the present utility model adds water glass solution in prewashing column washing slurries, waterglass is fully reacted with the hydrogen fluoride in flue gas, generate prodan and be dissolved in prewashing column slurries, thereby remove the hydrogen fluoride in flue gas.Water glass solution is a kind of effective defluorination absorbent, and the utility model can effectively be removed the hydrogen fluoride in flue gas, thereby improves the assimilation effect of absorbent, reduces the content of fluorine ion in absorptive tower absorbent.Because fluorine ion is extremely strong in the corrosivity under acid condition, in prewashing column, the hydrogen fluoride in flue gas is effectively removed, in absorption tower, the fluorine ion of absorption liquid also can reduce, thereby reduces the material of the equipment, pipeline and the valve that contact with absorbent, the cost of reducing investment outlay.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the waterglass chemicals dosing plant of flue gas prewashing tower of the present utility model.
Reference numeral: 1-waterglass powder storehouse, 2-sack cleaner, 3-heater, 4-rotary feeder, 5-auger conveyor, 6-waterglass slurry tank, 7-waterglass slurry tank agitator, 8-Y type filter, 9-waterglass slush pump, 10-waterglass carrier pipe, 11-working water inlet tube, 12-slurries circulation line.
The specific embodiment
The following examples are to describe in further detail of the present utility model.
As shown in Figure 1: the waterglass chemicals dosing plant of flue gas prewashing tower of the present utility model is comprised of waterglass powder storehouse 1, rotary feeder 4, auger conveyor 5, waterglass slurry tank 6, waterglass slurry tank agitator 7 and slurries circulation line 12,1 bottom, waterglass powder storehouse has pipeline to connect the top of waterglass slurry tank 6, the top of described connecting pipe is provided with rotary feeder 4, and bottom is provided with auger conveyor 5; In waterglass slurry tank 6, be provided with waterglass slurry tank agitator 7; Waterglass slurry tank 6 outsides are connected with slurries circulation line 12, and slurries circulation line 12 is provided with two chemical feeding points, by pipeline, connects prewashing tower.
Waterglass powder storehouse 1 is provided with waterglass carrier pipe 10, and waterglass carrier pipe 10 is provided with sack cleaner 2.The bottom in waterglass powder storehouse 1 is provided with heater 3.Waterglass slurry tank 6 tops are provided with working water inlet tube 11.Slurries circulation line 12 is provided with y-type filter 8.Slurries circulation line 12 is provided with waterglass slush pump 9.
Powdery waterglass is delivered to waterglass slurry tank 6 measuring by rotary feeder 4 and auger conveyor 5 from waterglass powder storehouse 1, to after concentration configuration, by 9 pairs of waterglass slurries of waterglass slush pump, in slurries circulation line 12, be circulated, two chemical feeding points are set on circulation line, waterglass are delivered to the inlet duct place of prewashing column circulating pump.Waterglass fully mixes by circulating pump impeller with the loop slurry of prewashing column in pump chamber, then delivers to prewashing column shower flue gas is carried out to spray washing, thereby removes the hydrogen fluoride in flue gas.
In specific implementation process, excessive water glass can generate colloid in prewashing column, and more difficult removing, so need the strict chemical feeding quantity of controlling waterglass, regularly detect the concentration of waterglass in prewashing column, prevent to affect after colloid the obstruction of pre-wash effect and associated conduit.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (6)
1. the waterglass chemicals dosing plant of a flue gas prewashing tower, it is characterized in that: described waterglass chemicals dosing plant is comprised of waterglass powder storehouse (1), rotary feeder (4), auger conveyor (5), waterglass slurry tank (6), waterglass slurry tank agitator (7) and slurries circulation line (12), bottom, waterglass powder storehouse (1) has pipeline to connect the top of waterglass slurry tank (6), the top of described connecting pipe is provided with rotary feeder (4), and bottom is provided with auger conveyor (5); In waterglass slurry tank (6), be provided with waterglass slurry tank agitator (7); Waterglass slurry tank (6) outside is connected with slurries circulation line (12), and slurries circulation line (12) is provided with two chemical feeding points, by pipeline, connects prewashing tower.
2. waterglass chemicals dosing plant as claimed in claim 1, is characterized in that: waterglass powder storehouse (1) is provided with waterglass carrier pipe (10), and waterglass carrier pipe (10) is provided with sack cleaner (2).
3. waterglass chemicals dosing plant as claimed in claim 1, is characterized in that: the bottom in waterglass powder storehouse (1) is provided with heater (3).
4. waterglass chemicals dosing plant as claimed in claim 1, is characterized in that: waterglass slurry tank (6) top is provided with working water inlet tube (11).
5. waterglass chemicals dosing plant as claimed in claim 1, is characterized in that: slurries circulation line (12) is provided with y-type filter (8).
6. waterglass chemicals dosing plant as claimed in claim 1, is characterized in that: slurries circulation line (12) is provided with waterglass slush pump (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105526.1U CN203725023U (en) | 2014-03-10 | 2014-03-10 | Sodium silicate feeding device of fume prewashing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105526.1U CN203725023U (en) | 2014-03-10 | 2014-03-10 | Sodium silicate feeding device of fume prewashing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203725023U true CN203725023U (en) | 2014-07-23 |
Family
ID=51195124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105526.1U Expired - Lifetime CN203725023U (en) | 2014-03-10 | 2014-03-10 | Sodium silicate feeding device of fume prewashing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203725023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045975A (en) * | 2018-08-28 | 2018-12-21 | 天津市岩丰精机有限责任公司 | A kind of lepidolite baking flue gas treatment process |
| CN109200871A (en) * | 2018-09-28 | 2019-01-15 | 北京国电龙源环保工程有限公司 | Waste water zero discharge device slurries tempering system and its operation method |
-
2014
- 2014-03-10 CN CN201420105526.1U patent/CN203725023U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045975A (en) * | 2018-08-28 | 2018-12-21 | 天津市岩丰精机有限责任公司 | A kind of lepidolite baking flue gas treatment process |
| CN109200871A (en) * | 2018-09-28 | 2019-01-15 | 北京国电龙源环保工程有限公司 | Waste water zero discharge device slurries tempering system and its operation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Patentee after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Patentee before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |