CN103691285A - Special ammonia water preparation device for washing sulfuric acid tail gas - Google Patents
Special ammonia water preparation device for washing sulfuric acid tail gas Download PDFInfo
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- CN103691285A CN103691285A CN201310723367.1A CN201310723367A CN103691285A CN 103691285 A CN103691285 A CN 103691285A CN 201310723367 A CN201310723367 A CN 201310723367A CN 103691285 A CN103691285 A CN 103691285A
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Abstract
The invention discloses a special ammonia water preparation device for washing sulfuric acid tail gas, which comprises an ammonia preparation tank, an ammonia inlet pipe, a water inlet pipe and an ammonia water pump, wherein the top of the ammonia preparation tank is provided with a liquid level meter and a pressure gauge; the bottom of the ammonia preparation tank is connected with the ammonia inlet pipe; the water inlet pipe is divided into two branch pipelines; one branch pipeline of the water inlet pipe is connected with the top of the ammonia preparation tank; a water inlet of the ammonia water pump is connected with the bottom of the ammonia preparation tank by a pipeline; a water outlet of the ammonia water pump is divided into two branch pipelines; one pipeline of the water outlet is connected to the top of the ammonia preparation tank and the other pipeline of the water outlet is a discharge pipe; and the two branch pipelines of the water outlet are respectively provided with an outlet valve f5 and an outlet valve f6. According to the invention, by the ammonia water pump, water in an ammonia water tank adsorbs more ammonia gas, the ammonia gas which is not adsorbed in the ammonia water tank is adsorbed by an adsorption geosyncline and water reflows to the top of the ammonia water tank by a geosyncline pump; and the special ammonia water preparation device not only implements complete adsorption and utilization of the ammonia gas, but also further improves concentration of the ammonia water and enables an effect of washing the sulfuric acid tail gas to be better due to the case that the water can reflow to the top of the ammonia water tank to adsorb the ammonia gas in the ammonia water tank again.
Description
Technical field
The present invention relates to a kind of equipment that is equipped with ammoniacal liquor, relate in particular to a kind of ammonia preparation device that is exclusively used in washing sulfuric acid tail gas.
Background technology
In the prior art, gas washing in SA production adopts double-absorption technique mostly.The sulfur dioxide in tail gas content of this technique is high, and normal value is at 700-960mg/m
3, environmental pollution is serious.China once carried out according to < < atmosphere pollution comprehensive discharge standard > > GB16297-1996 the emission standards for sulfur dioxide of sulfuric acid tail gas, but, along with in country " 12 " planning, the requirement of energy-saving and emission-reduction being increased, every have the enterprise of sulfur-containing tail gas tapping equipment to do further to cut down to the sulfur dioxide in tail gas.For this reason, national environmental protection portion and quality supervision and test quarantine general bureau combines and has promulgated < < sulfuric acid industry emission standard > > GB26132-2010, and come into effect on March 1st, 2011, this standard is reduced to 400mg/m by the sulfur dioxide effluent standard amount in sulfuric acid tail gas
3.Along with the execution of new standard, the exhaust emissions of a lot of enterprises obviously exceeds standard.In order to reach discharge standard, work out a kind of method that can efficiently process sulfur-containing tail gas extremely urgent.Company has proposed with the sulfur dioxide in ammonia absorption sulfuric-acid production tail gas, and the preparation of ammoniacal liquor just becomes the key link of WITH AMMONIA TREATMENT for sulfuric acid tail gas so.But there is following shortcoming in former ammonia preparation device: the fluid-tight of original ammonia preparation device design can not absorb completely to the unabsorbed gas ammonia of ammonia vessel, when ammonia vessel liquid level is higher or ammonia concn is higher, the gas ammonia amount that enters fluid-tight increases, fluid-tight will lose the ability to gas ammonia double absorption, cause gas ammonia to discharge sky, cause safety and environmental protection accident.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of ammonia preparation device that is exclusively used in washing sulfuric acid tail gas, by structural improvement, gas ammonia is absorbed completely and be transformed into ammoniacal liquor.
The present invention is achieved by the following technical solutions:
An ammonia preparation device that is exclusively used in washing sulfuric acid tail gas, comprises and joins ammonia groove, ammonia-feeding pipe and water inlet pipe, liquid level gauge and Pressure gauge are arranged at the described ammonia groove top of joining, and bottom connects ammonia-feeding pipe; Described water inlet pipe is divided into Liang Gezhi road pipeline, Yi Gezhi road pipeline is connected with the top of joining ammonia groove, with it is characterized in that: also comprise aqua ammonia pump, its water inlet is connected with the bottom of joining ammonia groove by pipeline, its delivery port is divided into Liang Gezhi road pipeline, a pipeline connects the top of joining ammonia groove, and another is discharge nozzle, has respectively outlet valve f5 and outlet valve f6 on the pipeline of Liang Gezhi road.
Further, in order to reach the effect that absorbs ammonia completely, also comprise absorption geosyncline, described absorption geosyncline one side is connected with another road pipeline of water inlet pipe, absorbs geosyncline and is connected with the top of joining ammonia groove by pipeline.
Further, in order to reach the object of the complete reason of ammonia, also have geosyncline pump in described absorption geosyncline, the delivery port of geosyncline pump is connected with the top of joining ammonia groove by pipeline.
Further, described absorption geosyncline with join You Yigezhi road pipeline in the connecting pipe of ammonia groove top, on it, have air bleeding valve f7.
Beneficial effect of the present invention is: by aqua ammonia pump, make the water in ammonia vessel absorb more ammonia, increased the ammonia concn in ammonia vessel, with absorbing unabsorbed ammonia in geosyncline absorbing ammonia tank, and flow to ammonia vessel top by geosyncline blowback, absorption completely and the utilization of ammonia have not only been realized, and because being back to ammonia vessel top, can again to ammonia in ammonia vessel, absorb, further improve the concentration of ammoniacal liquor, make to wash sulfuric acid tail gas and obtain better effects if.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1-joins ammonia groove, 2-absorbs geosyncline, 3-aqua ammonia pump, 4-geosyncline pump, 5-liquid level gauge, 6-Pressure gauge, 7-ammonia-feeding pipe, 8-water inlet pipe, 9-discharge nozzle.
The specific embodiment
Below in conjunction with embodiment, concrete technical scheme of the present invention is elaborated.
A kind of ammonia preparation device that is exclusively used in washing sulfuric acid tail gas as shown in Figure 1, comprises and joins ammonia groove 1, ammonia-feeding pipe 7 and water inlet pipe 8, liquid level gauge 5 and Pressure gauge 6 are arranged at described ammonia groove 1 top of joining, and bottom connects ammonia-feeding pipe 7, described water inlet pipe 8 is divided into Liang Gezhi road pipeline, Yi Gezhi road pipeline is connected with the top of joining ammonia groove 1, with it is characterized in that: also comprise aqua ammonia pump 3, its water inlet is connected with the bottom of joining ammonia groove 1 by pipeline, its delivery port is divided into Liang Gezhi road pipeline, a pipeline connects the top of joining ammonia groove 1, another is discharge nozzle 9, on the pipeline of Liang Gezhi road, there are respectively outlet valve f5 and outlet valve f6, also comprise and absorb geosyncline 2, described absorption geosyncline 2 one sides are connected with another road pipeline of water inlet pipe 8, absorbing geosyncline 2 is connected with the top of joining ammonia groove 1 by pipeline, You Yigezhi road pipeline on pipeline, on it, there is air bleeding valve f7.Absorb in geosyncline 2 and also have geosyncline pump 4, the delivery port of geosyncline pump 4 is connected with the top of joining ammonia groove 1 by pipeline.
This device is to utilize ammonia to react the principle that generates ammonium hydroxide with water.First by the water that adds 2-3 meters in ammonia vessel, backward ammonia vessel adds and enters gas ammonia.Next opens aqua ammonia pump and plays interior circulation, and moisturizing in the most backward absorption geosyncline, opens geosyncline pump the water in geosyncline is squeezed into ammonia vessel, until ammonia vessel liquid level reaches 6 meters.
Reactive chemistry equation:
Concrete operation step:
One, ammoniacal liquor formulation operations step
1, close evacuated tube exhaust-valve f7;
2, open water intaking valve f3 and add water to 2.5 meters in ammonia vessel 1, start ammonia and wash circulation in 3 dozens of pumps;
2.1 all open pump inlet valve f4 door, crack pump discharge valve f5, and f6 closes;
2.2 press start button, start ammonia and wash pump 3;
When 2.3 observation pump pressures rise to pump maximum pressure, outlet valve f5 door is slowly opened, kept pump pressure steady, outlet valve open degree must not surpass 1/2.
3, little ammonia is divided to ammonia ammonia vessel 1 gas ammonia and open half, crack ammonia vessel enters ammonia valve f1, according to ammonia vessel Vibration Condition, regulates ammonia vessel to enter ammonia valve f1 aperture;
4, geosyncline 2 water levels must export higher than evacuated tube, open geosyncline pump 4 displacement geosyncline 2 ammoniacal liquor.
4.1 press start button, start geosyncline pump 4;
4.2 open geosyncline pump discharge valve f8;
5, open geosyncline water compensating valve f2 to geosyncline 2 moisturizings, rate of water make-up will with 4 dozens of water balances of geosyncline pump, geosyncline 2 water levels are advisable outward not splash in groove, but will guarantee that geosyncline pump 4 can not fan the air pump and ammonia excretion pipe to sky.According to on-the-spot ammonia taste and ammonia vessel 1 shock conditions, regulate gaseous ammonia valve f1 aperture.
6, ammonia vessel 1 water level reaches after 6 meters, stops geosyncline pump 4, stops geosyncline 2 moisturizings.
7, continue to join ammonia qualified to ammoniacal liquor, join ammonia process and will change geosyncline 2 ammoniacal liquor in good time, geosyncline 2 water levels are advisable not splash in groove, but will guarantee that geosyncline 2 can not fan the air pump and ammonia excretion pipe to sky.
Sample analysis ammonia concn while 8, joining after ammonia to 10 hour notice sampling, concentration reaches
Stop joining ammonia to 8-10% time, notice sulfuric acid two workshop ammoniacal liquor have coordinated lattice.
Two, shutdown operation step
After ammoniacal liquor preparation is qualified, stop joining ammoniacal liquor.
1, close ammonia vessel 1 and enter ammonia valve f1, stop for ammonia;
2, stop ammonia and wash pump 3, stop beating circulation;
2.1 slowly close pump discharge valve f5,
2.2 press stop button termination of pumping,
2.3 close pump inlet valve f4.
3, the ammoniacal liquor of geosyncline 2 is returned to ammonia vessel 1;
4, closing little ammonia divides to ammonia washing trough control valve.
Three, beat ammoniacal liquor
1, receive sulfuric acid two workshops and beat after ammoniacal liquor notice, the qualified ammoniacal liquor of preparation is made to sulfuric acid two workshops;
2, phone confirmation sulfuric acid two workshop ammonia washing trough imported valves are opened, have possessed the ammoniacal liquor condition of beating;
3, start ammonia and wash pump 3
3.1 all open pump inlet valve f4, crack pump discharge valve f6, f5 complete shut-down;
3.2 press start button, start ammonia and wash pump 3;
When 3.3 observation pump pressures rise to pump maximum pressure, outlet valve f6 is slowly opened, keep pump pressure steady, until outlet valve standard-sized sheet.
While 4, beating ammoniacal liquor, to note ammonia vessel 1 internal pressure, when pressure is down to zero soon, should open in time exhaust-valve to the interior ftercompction of ammonia vessel 1, guarantee that ammonia vessel 1 does not form negative pressure.
Four, stop beating ammoniacal liquor
Receive sulfuric acid two workshops and stop beating after ammoniacal liquor notice, stop ammonia and wash pump 3.
1, pump discharge valve f6 is slowly closed;
2, press stop button termination of pumping;
3, close pump inlet valve f4.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its objective is to allow and be familiar with these those skilled in the art and can understand content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalents or modification that according to the present invention, spirit essence has been done, all should contain in protection scope of the present invention.
Claims (4)
1. an ammonia preparation device that is exclusively used in washing sulfuric acid tail gas, comprises and joins ammonia groove (1), ammonia-feeding pipe (7) and water inlet pipe (8), liquid level gauge (5) and Pressure gauge (6) are arranged at described ammonia groove (1) top of joining, and bottom connects ammonia-feeding pipe (7); Described water inlet pipe (8) is divided into Liang Gezhi road pipeline, Yi Gezhi road pipeline is connected with the top of joining ammonia groove (1), with it is characterized in that: also comprise aqua ammonia pump (3), its water inlet is connected with the bottom of joining ammonia groove (1) by pipeline, its delivery port is divided into Liang Gezhi road pipeline, a pipeline connects the top of joining ammonia groove (1), and another is discharge nozzle (9), has respectively outlet valve f5 and outlet valve f6 on the pipeline of Liang Gezhi road.
According to claim 1 be exclusively used in washing sulfuric acid tail gas ammonia preparation device, it is characterized in that: also comprise and absorb geosyncline (2), described absorption geosyncline (2) one sides are connected with another road pipeline of water inlet pipe (8), absorb geosyncline (2) and are connected with the top of joining ammonia groove (1) by pipeline.
3. the ammonia preparation device that is exclusively used in washing sulfuric acid tail gas according to claim 2, is characterized in that: in described absorption geosyncline (2), also have geosyncline pump (4), the delivery port of geosyncline pump (4) is connected with the top of joining ammonia groove (1) by pipeline.
According to claim 2 be exclusively used in washing sulfuric acid tail gas ammonia preparation device, it is characterized in that: described absorption geosyncline (2) with join You Yigezhi road pipeline in the connecting pipe of ammonia groove (1) top, on it, have air bleeding valve f7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723367.1A CN103691285B (en) | 2013-12-25 | 2013-12-25 | A kind of ammonia preparation device being exclusively used in washing sulfuric acid tail gas |
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| CN201310723367.1A CN103691285B (en) | 2013-12-25 | 2013-12-25 | A kind of ammonia preparation device being exclusively used in washing sulfuric acid tail gas |
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| CN103691285A true CN103691285A (en) | 2014-04-02 |
| CN103691285B CN103691285B (en) | 2017-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190214A (en) * | 2014-09-17 | 2014-12-10 | 南京凯盛国际工程有限公司 | Ammonia gas absorbing device |
| CN104402022A (en) * | 2014-10-27 | 2015-03-11 | 北京工业大学 | Apparatus and method for providing stable-concentration ammonia gas |
| CN107697931A (en) * | 2017-10-31 | 2018-02-16 | 四川锌鸿科技有限公司 | A kind of multistage reverse circulation inhales ammonia process |
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| JPH11253745A (en) * | 1998-03-10 | 1999-09-21 | Mitsubishi Materials Corp | Method and apparatus for recovering ammonia |
| EP0994072A1 (en) * | 1998-10-12 | 2000-04-19 | Kellogg Brown & Root, Inc. | Isothermal ammonia converter |
| CN201148352Y (en) * | 2007-11-06 | 2008-11-12 | 金川集团有限公司 | Apparatus for preparing ammonia water |
| CN202785681U (en) * | 2012-06-14 | 2013-03-13 | 江阴苏龙微电子材料有限公司 | Device for continuously producing ultra-clean and high-purity ammonia water |
| CN203200033U (en) * | 2013-04-28 | 2013-09-18 | 河南龙宇煤化工有限公司 | Low-concentration ammonia water recovery system |
| CN103432919A (en) * | 2013-08-19 | 2013-12-11 | 江苏新中环保股份有限公司 | Device for preparing ammonium hydroxide by liquid ammonia |
-
2013
- 2013-12-25 CN CN201310723367.1A patent/CN103691285B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11253745A (en) * | 1998-03-10 | 1999-09-21 | Mitsubishi Materials Corp | Method and apparatus for recovering ammonia |
| EP0994072A1 (en) * | 1998-10-12 | 2000-04-19 | Kellogg Brown & Root, Inc. | Isothermal ammonia converter |
| CN201148352Y (en) * | 2007-11-06 | 2008-11-12 | 金川集团有限公司 | Apparatus for preparing ammonia water |
| CN202785681U (en) * | 2012-06-14 | 2013-03-13 | 江阴苏龙微电子材料有限公司 | Device for continuously producing ultra-clean and high-purity ammonia water |
| CN203200033U (en) * | 2013-04-28 | 2013-09-18 | 河南龙宇煤化工有限公司 | Low-concentration ammonia water recovery system |
| CN103432919A (en) * | 2013-08-19 | 2013-12-11 | 江苏新中环保股份有限公司 | Device for preparing ammonium hydroxide by liquid ammonia |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190214A (en) * | 2014-09-17 | 2014-12-10 | 南京凯盛国际工程有限公司 | Ammonia gas absorbing device |
| CN104402022A (en) * | 2014-10-27 | 2015-03-11 | 北京工业大学 | Apparatus and method for providing stable-concentration ammonia gas |
| CN107697931A (en) * | 2017-10-31 | 2018-02-16 | 四川锌鸿科技有限公司 | A kind of multistage reverse circulation inhales ammonia process |
| CN107697931B (en) * | 2017-10-31 | 2020-06-30 | 四川锌鸿科技有限公司 | Multistage reverse circulation ammonia absorption process |
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| CN103691285B (en) | 2017-01-04 |
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Address after: No. 237 Jinyang City Kailin Lake District Road 550009 Guizhou city of Guiyang Province Applicant after: GUIZHOU KAILIN GROUP Co.,Ltd. Address before: 550002 Guizhou city in Guiyang Province, the Haitian Road No. 203 building 12 layer Applicant before: Guizhou Kailin (Group) Co.,Ltd. |
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