CN205323511U - Integration lime and naoh charge device - Google Patents
Integration lime and naoh charge device Download PDFInfo
- Publication number
- CN205323511U CN205323511U CN201520787527.3U CN201520787527U CN205323511U CN 205323511 U CN205323511 U CN 205323511U CN 201520787527 U CN201520787527 U CN 201520787527U CN 205323511 U CN205323511 U CN 205323511U
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- China
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- molten medicine
- chest
- ball valve
- electrical ball
- clear water
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Abstract
The utility model discloses an integration lime and naoh charge device, it includes agent dissolving box, mechanical stirring machine, height rod -type liquid level controller, electrical ball valve, pH on -line monitoring appearance, intelligent electropneumatic controller. Be equipped with in the agent dissolving box and dissolve the medicine clear water, the medicine clear water is dissolved to the powdered lime input, slice naoh drops into and dissolves the medicine clear water, mechanical stirring machine, height rod -type liquid level controller install at the agent dissolving box top to be connected with intelligent electropneumatic controller, the electrical ball valve is installed at agent dissolving box outsidely, the pH on -line monitoring appearance is installed in intelligent electropneumatic controller, intelligent electropneumatic controller installs at agent dissolving box outsidely, the utility model discloses can throw with lime solution and sodium hydroxide solution according to pH value automatic control, make the desulfurization circulation fluid manage at best pH range of value.
Description
Technical field
This utility model relates to a kind of integration Calx and sodium hydroxide chemicals dosing plant, and the sulphur-containing exhaust gas desulfurizing and purifying especially relating to industry coal-boiler discharge processes。
Background technology
The sulphur-containing exhaust gas desulfurizing and purifying of industry coal-boiler discharge common at present processes and adopts lime method more, because the desulphurization circulating liquid pH adjusted is higher than 9 during employing limestone-based process desulfurization, lime solution excessive concentration easily causes supersaturation crystallization and blocks drug feeding pipeline and desulphurization circulating pipeline and valve, and makes Calx utilization rate low because calcium hydroxide dissolubility in the solution is low。
A lot of factories now also adopt artificial feeding lime mode, use pH reagent paper to check doctor solution pH value so that doctor solution pH value is unstable because of anthropic factor, and the sulfur dioxide that the change of desulfuration efficiency easily causes in toxic emission exceeds standard。
Summary of the invention
The technical problem underlying that this utility model year to solve is to provide integrated Calx and the sodium hydroxide chemicals dosing plant of a kind of modular combination, utilize the on-line monitoring function of pH on-line computing model, make desulphurization circulating hydraulic control system in optimal pH scope with electrical ball valve coordinated signals, to ensure that exhuast gas desulfurization stabilised efficiency makes waste gas stably reaching standard discharge。
This utility model is realized by techniques below: it includes molten medicine-chest, machine mixer, high-low rod type liquid level controller, electrical ball valve, pH on-line computing model, intelligent electric airgun controller。Desulphurization circulating liquid adds aqua calcis by desulphurization circulating liquid initial adjustment pH value to 6.5 in front end, then reuse tank front end add sodium hydroxide solution by desulphurization circulating liquid adjust pH value to 9 after go desulfurization to process so that desulfurized effect is stable。
This utility model concrete scheme is as follows:
A kind of integration Calx and sodium hydroxide chemicals dosing plant, it is characterised in that:
Including molten medicine-chest (310,510), machine mixer (320,520), high-low rod type liquid level controller (330,530), electrical ball valve (340,350,540,550), pH on-line computing model (360,560), intelligent electric airgun controller (370)；
In described molten medicine-chest (310,510), storage has molten medicine clear water (300,500), and described powdered lime (301) puts into molten medicine clear water (300), and described flaky sodium hydrate (501) puts into molten medicine clear water (500)；
Described machine mixer (320,520) is arranged on molten medicine-chest (310,510) top, and stirrer paddle is immersed in molten medicine clear water (300,500)；
Described high-low rod type liquid level controller (330,530) is arranged on molten medicine-chest (310,510) top, and rising stem (RS.) is immersed in molten medicine clear water (300,500)；
It is outside that described electrical ball valve (340,350,540,550) is arranged on molten medicine-chest (310,510), electrical ball valve (340) one end is connected with molten medicine-chest (310), one end is connected with running water pipe, and electrical ball valve (350) one end is connected with molten medicine-chest (310), and one end is connected with chemical feed pipe；Electrical ball valve (540) one end is connected with molten medicine-chest (510), and one end is connected with running water pipe, and electrical ball valve (550) one end is connected with molten medicine-chest (510), and one end is connected with chemical feed pipe；
Described pH on-line computing model (360,560) is arranged in intelligent electric airgun controller (370), and sensor is arranged in doctor solution circulatory pool；
It is outside that described intelligent electric airgun controller (370) is arranged on molten medicine-chest (310,510), is connected and accepts the control of intelligent electric airgun controller with machine mixer (320,520), high-low rod type liquid level controller (330,530), electrical ball valve (340,350) (540,550), pH on-line computing model (360,560) by cable。
Integration Calx described in the utility model and sodium hydroxide chemicals dosing plant, further scheme is:
1) in molten medicine-chest (310), storage has molten medicine clear water (300), and described powdered lime (301) puts into molten medicine clear water (300), forms aqua calcis。When pH on-line computing model (360) monitors desulphurization circulating liquid pH value lower than 5.5, open electrical ball valve (350) and add aqua calcis, when pH on-line computing model (360) monitors desulphurization circulating liquid pH value higher than 6.5, close electrical ball valve (350) and stop adding aqua calcis。Control to run by this rule。
2) in molten medicine-chest (510), storage has molten medicine clear water (500), and described flaky sodium hydrate (501) puts into molten medicine clear water (500)。Form sodium hydroxide solution。When pH on-line computing model (560) monitors desulphurization circulating liquid pH value lower than 6.5, open electrical ball valve (550) and add sodium hydroxide solution, when pH on-line computing model (560) monitors desulphurization circulating liquid pH value higher than 9, close electrical ball valve (550) and stop adding sodium hydroxide solution。Control to run by this rule。
This utility model integration Calx and sodium hydroxide chemicals dosing plant, the scheme more optimized is:
1) in molten medicine-chest (310), storage has molten medicine clear water (300), and described powdered lime (301) puts into molten medicine clear water (300), forms aqua calcis。Described high-low rod type liquid level controller (330) rising stem (RS.) is immersed in molten medicine clear water (300), when the low liquid level of aqua calcis, open electrical ball valve (340) and add tap water, add powdered lime (301), when aqua calcis high liquid level, close electrical ball valve (340) and stop adding tap water。Control to run by this rule。
2) in molten medicine-chest (510), storage has molten medicine clear water (500), and described flaky sodium hydrate (501) puts into molten medicine clear water (500), forms sodium hydroxide solution。Described high-low rod type liquid level controller (530) rising stem (RS.) is immersed in molten medicine clear water (500), when the low liquid level of sodium hydroxide solution, open electrical ball valve (540) and add tap water, add flaky sodium hydrate (501), when sodium hydroxide solution high liquid level, close electrical ball valve (540) and stop adding tap water。Control to run by this rule。
The present invention, because adopting double alkali method desulfurizing, utilizes aqua calcis by after desulphurization circulating liquid initial adjustment pH value to 6.5, then adjusts pH value to go desulfurization to process after 9 desulphurization circulating liquid with sodium hydroxide solution。Substantially reduce aqua calcis concentration so that drug feeding pipeline, circulating line and valve are not easily blocked。The use of sodium hydroxide is high because of its dissolubility high utilization rate so that desulfurization dosage reduces, and can be greatly saved desulfurization operation maintenance cost。
The beneficial effects of the utility model are: Automated condtrol desulphurization circulating liquid pH value, stablize and improve smoke desulfurization efficiency, conveniently controlling operational management。
Accompanying drawing explanation
Fig. 1 is this utility model structural plan schematic diagram；
Fig. 2 is this utility model structural facades schematic diagram；
Fig. 3 is utility model works schematic diagram。
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is illustrated further。
Embodiment 1
This utility model processes system for industry coal-boiler exhuast gas desulfurization: include desulfurizing tower, desulphurization circulating pond, integration Calx and sodium hydroxide chemicals dosing plant, recirculated water reuse pump, recirculated water reuse pipeline, valve。
Industry coal-boiler waste gas enters desulfurizing tower after the dedusting pretreatment of front end, the desulfurization wastewater of desulfurizing tower bottom discharge enters desulphurization circulating pond, add aqua calcis by desulphurization circulating liquid initial adjustment pH value to 6.5, again reuse tank front end add sodium hydroxide solution by desulphurization circulating liquid adjust pH value to 9 after, adopt recirculated water reuse pump through recirculated water reuse pipeline, valve send into desulfurizing tower carry out exhuast gas desulfurization process。
This utility model integration Calx and sodium hydroxide chemicals dosing plant, including molten medicine-chest (310) (510), machine mixer (320) (520), high-low rod type liquid level controller (330) (530), electrical ball valve (340) (350) (540) (550), pH on-line computing model (360) (560), intelligent electric airgun controller (370)；
In described molten medicine-chest (310) (510), storage has molten medicine clear water (300) (500), and described powdered lime (301) puts into molten medicine clear water (300), and described flaky sodium hydrate (501) puts into molten medicine clear water (500)；
Described machine mixer (320) (520) is arranged on molten medicine-chest (310) (510) top, and stirrer paddle is immersed in molten medicine clear water (300) (500)；
Described high-low rod type liquid level controller (330) (530) is arranged on molten medicine-chest (310) (510) top, and rising stem (RS.) is immersed in molten medicine clear water (300) (500)；
It is outside that described electrical ball valve (340) (350) (540) (550) is arranged on molten medicine-chest (310) (510), electrical ball valve (340) one end is connected with molten medicine-chest (310), one end is connected with running water pipe, electrical ball valve (350) one end is connected with molten medicine-chest (310), and one end is connected with chemical feed pipe；Electrical ball valve (540) one end is connected with molten medicine-chest (510), and one end is connected with running water pipe, and electrical ball valve (550) one end is connected with molten medicine-chest (510), and one end is connected with chemical feed pipe；
Described pH on-line computing model (360) (560) is arranged in intelligent electric airgun controller (370), and sensor is arranged in doctor solution circulatory pool；
It is outside that described intelligent electric airgun controller (370) is arranged on molten medicine-chest (310) (510), is connected by cable with machine mixer (320) (520), high-low rod type liquid level controller (330) (530), electrical ball valve (340) (350) (540) (550), pH on-line computing model (360) (560) and accepts the control of intelligent electric airgun controller。
Claims (1)
1. an integrated Calx and sodium hydroxide chemicals dosing plant, it is characterised in that: include molten medicine-chest (310,510), machine mixer (320,520), high-low rod type liquid level controller (330,530), electrical ball valve (340,350,540,550), pH on-line computing model (360,560), intelligent electric airgun controller (370)；
In described molten medicine-chest (310,510), storage has molten medicine clear water (300,500), and powdered lime (301) puts into molten medicine clear water (300), and flaky sodium hydrate (501) puts into molten medicine clear water (500)；
Described machine mixer (320,520) is arranged on molten medicine-chest (310,510) top, and stirrer paddle is immersed in molten medicine clear water (300,500)；
Described high-low rod type liquid level controller (330,530) is arranged on molten medicine-chest (310,510) top, and rising stem (RS.) is immersed in molten medicine clear water (300,500)；
It is outside that described electrical ball valve (340,350,540,550) is arranged on molten medicine-chest (310,510), electrical ball valve (340) one end is connected with molten medicine-chest (310), one end is connected with running water pipe, and electrical ball valve (350) one end is connected with molten medicine-chest (310), and one end is connected with chemical feed pipe；Electrical ball valve (540) one end is connected with molten medicine-chest (510), and one end is connected with running water pipe, and electrical ball valve (550) one end is connected with molten medicine-chest (510), and one end is connected with chemical feed pipe；
Described pH on-line computing model (360,560) is arranged in intelligent electric airgun controller (370), and sensor is arranged in doctor solution circulatory pool；
It is outside that described intelligent electric airgun controller (370) is arranged on molten medicine-chest (310,510), is connected and accepts the control of intelligent electric airgun controller with machine mixer (320,520), high-low rod type liquid level controller (330,530), electrical ball valve (340,350,540,550), pH on-line computing model (360,560) by cable。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520787527.3U CN205323511U (en) | 2015-10-14 | 2015-10-14 | Integration lime and naoh charge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520787527.3U CN205323511U (en) | 2015-10-14 | 2015-10-14 | Integration lime and naoh charge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205323511U true CN205323511U (en) | 2016-06-22 |
Family
ID=56213039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520787527.3U Expired - Fee Related CN205323511U (en) | 2015-10-14 | 2015-10-14 | Integration lime and naoh charge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205323511U (en) |
-
2015
- 2015-10-14 CN CN201520787527.3U patent/CN205323511U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20201014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |