CN201848195U - Device for co-production of sodium fluosilicate in washing of phosphate tail gas - Google Patents
Device for co-production of sodium fluosilicate in washing of phosphate tail gas Download PDFInfo
- Publication number
- CN201848195U CN201848195U CN2010205872691U CN201020587269U CN201848195U CN 201848195 U CN201848195 U CN 201848195U CN 2010205872691 U CN2010205872691 U CN 2010205872691U CN 201020587269 U CN201020587269 U CN 201020587269U CN 201848195 U CN201848195 U CN 201848195U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- washing
- pump
- tower
- fluosilicic acid
- 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 - Fee Related
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a device for co-production of sodium fluosilicate in washing of phosphate tail gas, which comprises a Venturi tube, a lotion tank, a first washing tower, a second washing tower, a tail gas washing apparatus, a bubble trap, a tail gas fan, a tail gas chimney, a lotion trough, a Venturi tube washing pump, a press filter feeding pump, a plate and frame type press filter, a fluosilicic acid tank, a fluosilicic acid pump and sodium fluosilicate reaction tank. A first washing pump is arranged on the first washing tower, a second washing pump is arranged on the second washing tower, and three pipelines are adopted for connection of the components. The utility model can solve the problem of the use of the byproduct fluosilicic acid generated in production, so that the operating quality of environmental protection equipment in workshops is improved, and new economic growth points are opened up when the quality of the environment is guaranteed.
Description
Technical field
The present invention relates to a kind of device that washs phosphoric acid tail gas and coproduction prodan.
Background technology
At present, most chemical enterprise constantly increases environmental protection equipment to guarantee the various tail gas of qualified discharge, the environment of preserving our planet on the basis of original environmental protection equipment.Yet the middle byproduct of Chan Shenging just constantly increases like this, and fluosilicic acid is exactly wherein one.Continual in service at environmental protection facility, produce a large amount of fluosilicic acid byproducts, it has extremely strong corrosivity, is difficult for storing, and gives the ordinary production of our chemical enterprise, and the normal operation of environmental protection facility brings puzzlement.
Summary of the invention
At above-mentioned prior art; in order to protect environment, reduce pollutant emission, recycle resource, to improve the business economic benefit; the present invention provides a kind of device and technology of washing phosphoric acid tail gas and coproduction prodan on the basis that original washing tail gas system is transformed.
The present invention is achieved by the following technical solutions:
A kind of device that washs phosphoric acid tail gas and coproduction prodan, comprise Venturi tube, the washing lotion groove, one washes tower, two wash tower, exhaust scrubber, bubble trap, exhaust fan, tail gas funnel, the washing lotion geosyncline, the Venturi tube washing pump, the filter press feed pump, plate and frame type filter-press, the fluosilicic acid pond, fluosilicic acid pump and prodan reactive tank, one washes tower is provided with one and washes the tower pump, two wash tower is provided with two and washes the tower pump, wherein, the connection of each assembly is divided into three pipelines, as follows: Venturi tube, the washing lotion groove, one washes tower, two wash tower, exhaust scrubber, bubble trap, exhaust fan is connected successively with tail gas funnel, for phosphoric acid tail gas is handled pipeline; Two Xi Ta, one wash tower, washing lotion geosyncline, Venturi tube washing pump, Venturi tube and washing lotion groove and are connected successively, handle pipeline together with aforementioned phosphoric acid tail gas, are the cleaning solution circulation line; Washing lotion geosyncline, filter press feed pump, plate and frame type filter-press, fluosilicic acid pond, fluosilicic acid pump and prodan reactive tank are connected successively, for fluosilicic acid is handled pipeline; Described connection is pipeline and connects.
A kind of technology of washing phosphoric acid tail gas and coproduction prodan, step is: after the phosphoric acid tail gas water washed, then fluosilicic acid was water-soluble, in the water that is dissolved with fluosilicic acid, add sodium sulphate then, react, generate prodan and sulfuric acid, filter, promptly obtain prodan.
Concrete steps are:
(1) after phosphoric acid tail gas is extracted out by reactive tank three districts, inhale towers and wash through venturi tube, a suction tower, two, then fluosilicic acid is water-soluble, and cleaning solution is recycling; After other not water-soluble tail gas enters exhaust scrubber, bubble trap, exhaust fan and tail gas funnel, carry out emptying;
(2) replenishing of cleaning solution: wash the tower moisturizing from two, branch to then and wash tower, wash tower from again and branch to the washing lotion geosyncline, squeeze into the absorption that circulates of Venturi tube, washing lotion groove by the Venturi tube washing pump;
(3) preparation of prodan: the cleaning solution that is dissolved with fluosilicic acid is delivered to deckle board formula filter press by the filter press feed pump, carry out press filtration, filtrate enters the fluosilicic acid pond, squeeze into the prodan reactive tank through the fluosilicic acid pump again, add sodium sulphate then in the prodan reactive tank, prodan is produced in reaction, filters, promptly get the prodan finished product, reactant liquor is recycled: add phosphoric acid extraction groove decomposing phosphate rock slurry.
During use, the silica gel that press filtration goes out to deckle board formula filter press was once cleared up and was concentrated to reclaim and place in per 8 hours.
The reaction principle that the present invention prepares prodan is: H
2SiF
6+ Na
2SO
4=Na
2SiF
6+ H
2SO
4
During concrete the reaction, should be according to actual conditions, control adds the amount of sodium sulphate, accomplishes that as much as possible fluosilicic acid is all reacted, and does not waste sodium sulphate.
Method of the present invention is produced the tendency that prodan is a kind of economizing economy development; and can also help environmental protection; be used for producing the chemical enterprise that the fluoride intermediate products occur; carry out the fluoride washing by the washing tail gas device; use separator (filter press) that fluosilicic acid is separated again; add a certain amount of fluosilicic acid in reactive tank, add the metabisulfite solution for preparing then in proportion, the back gets the product prodan with centrifuge with Separation of Solid and Liquid.
The present invention when not influencing production task, can guarantee the operation of environmental protection facility 100% for middle byproduct again.During concrete the application, can utilize discarded reactive tank to produce prodan, and the diluted acid that filter produces be squeezed into reactive tank and continues to use, and can not only solve the puzzlement that fluosilicic acid brings to enterprise like this, can also save resource according to the existence conditions of factory.
Advantage of the present invention is: improved effect is that phosphoric acid workshop tail gas clean result is obvious, is lower than discharging standards.Fluosilicic acid concentration row in the fluosilicic acid pond is measured, and fluosilicic acid concentration can be stablized and is controlled between the 10-15%.Visual method checks that to discharging tail gas tail gas obviously reduces.Use problem to byproduct fluosilicic acid in the production process is resolved, and has improved the running quality of workshop environmental protection equipment, when guaranteeing environmental quality, has opened up new growth engines.
Description of drawings
Fig. 1 is the structural representation of the device of washing phosphoric acid tail gas of the present invention and coproduction prodan;
Fig. 2 is the process chart of washing phosphoric acid tail gas of the present invention and coproduction prodan.
Wherein, 1, Venturi tube; 2, washing lotion groove; 3, one wash tower; 4, two wash tower; 5, exhaust scrubber; 6, bubble trap; 7, exhaust fan; 8, tail gas funnel; 9, washing lotion geosyncline; 10, Venturi tube washing pump; 11, filter press feed pump; 12, plate and frame type filter-press; 13, fluosilicic acid pond; 14, fluosilicic acid pump; 15, prodan reactive tank; 16, one wash the tower pump; 17, two wash the tower pump.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
A kind of device that washs phosphoric acid tail gas and coproduction prodan, comprise Venturi tube 1, washing lotion groove 2, one washes tower 3, two wash tower 4, exhaust scrubber 5, bubble trap 6, exhaust fan 7, tail gas funnel 8, washing lotion geosyncline 9, Venturi tube washing pump 10, filter press feed pump 11, plate and frame type filter-press 12, fluosilicic acid pond 13, fluosilicic acid pump 14 and prodan reactive tank 15, as shown in Figure 1, one washes tower 3 is provided with one and washes tower pump 16, two wash tower 4 is provided with two and washes tower pump 17, wherein, the connection of each assembly is divided into three pipelines, as follows: Venturi tube 1, washing lotion groove 2, one washes tower 3, two wash tower 4, exhaust scrubber 5, bubble trap 6, exhaust fan 7 is connected successively with tail gas funnel 8, for phosphoric acid tail gas is handled pipeline; Two wash tower 4, washes tower 3, washing lotion geosyncline 9, Venturi tube washing pump 10, Venturi tube 1 and washing lotion groove 2 and is connected successively, handles pipeline together with aforementioned phosphoric acid tail gas, is the cleaning solution circulation line; Washing lotion geosyncline 9, filter press feed pump 10, plate and frame type filter-press 11, fluosilicic acid pond 12, fluosilicic acid pump 13 and prodan reactive tank 14 are connected successively, for fluosilicic acid is handled pipeline; Described connection is pipeline and connects.
1 one kinds of technologies of washing phosphoric acid tail gas and coproduction prodan of embodiment, flow chart as shown in Figure 2, the direction of arrow is represented the traffic direction of material among the figure.Concrete steps are:
(1) after phosphoric acid tail gas is extracted out by reactive tank three districts, inhale towers 4 and wash through venturi tube 1, washing lotion groove 2, a suction tower 3, two, then fluosilicic acid is water-soluble, and cleaning solution is recycling; Other not water-soluble tail gas carries out emptying after entering exhaust scrubber 5, bubble trap 6, exhaust fan 7 and tail gas funnel 8;
(2) replenishing of cleaning solution: wash tower 4 moisturizings from two, branch to then and wash tower 3, wash tower 3 from again and branch to washing lotion geosyncline 9, squeeze into the absorption that circulates of Venturi tube 1, washing lotion groove 2 by Venturi tube washing pump 10;
(3) preparation of prodan: the cleaning solution that is dissolved with fluosilicic acid is delivered to deckle board formula filter press 12 by filter press feed pump 11, carry out press filtration, filtrate enters fluosilicic acid pond 13, squeeze into prodan reactive tank 15 through fluosilicic acid pump 14 again, add sodium sulphate then in prodan reactive tank 15, prodan is produced in reaction, filters, promptly get the prodan finished product, reactant liquor is recycled: add phosphoric acid extraction groove decomposing phosphate rock slurry.
During use, the silica gel that 12 press filtrations go out to deckle board formula filter press was once cleared up and was concentrated to reclaim and place in per 8 hours.
The reaction principle that the present invention prepares prodan is: H
2SiF
6+ Na
2SO
4=Na
2SiF
6+ H
2SO
4
During concrete the reaction, should be according to actual conditions, control adds the amount of sodium sulphate, accomplishes that as much as possible fluosilicic acid is all reacted, and does not waste sodium sulphate.
Claims (1)
1. device that washs phosphoric acid tail gas and coproduction prodan, it is characterized in that: comprise Venturi tube, the washing lotion groove, one washes tower, two wash tower, exhaust scrubber, bubble trap, exhaust fan, tail gas funnel, the washing lotion geosyncline, the Venturi tube washing pump, the filter press feed pump, plate and frame type filter-press, the fluosilicic acid pond, fluosilicic acid pump and prodan reactive tank, one washes tower is provided with one and washes the tower pump, two wash tower is provided with two and washes the tower pump, wherein, the connection of each assembly is divided into three pipelines, as follows: Venturi tube, the washing lotion groove, one washes tower, two wash tower, exhaust scrubber, bubble trap, exhaust fan is connected successively with tail gas funnel, for phosphoric acid tail gas is handled pipeline; Two Xi Ta, one wash tower, washing lotion geosyncline, Venturi tube washing pump, Venturi tube and washing lotion groove and are connected successively, handle pipeline together with aforementioned phosphoric acid tail gas, are the cleaning solution circulation line; Washing lotion geosyncline, filter press feed pump, plate and frame type filter-press, fluosilicic acid pond, fluosilicic acid pump and prodan reactive tank are connected successively, for fluosilicic acid is handled pipeline; Described connection is pipeline and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205872691U CN201848195U (en) | 2010-11-01 | 2010-11-01 | Device for co-production of sodium fluosilicate in washing of phosphate tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205872691U CN201848195U (en) | 2010-11-01 | 2010-11-01 | Device for co-production of sodium fluosilicate in washing of phosphate tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848195U true CN201848195U (en) | 2011-06-01 |
Family
ID=44090610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205872691U Expired - Fee Related CN201848195U (en) | 2010-11-01 | 2010-11-01 | Device for co-production of sodium fluosilicate in washing of phosphate tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972584A (en) * | 2010-11-01 | 2011-02-16 | 山东聊城鲁西化工第四化肥有限公司 | Device and process for washing phosphoric acid tail gas and cogenerating sodium fluosilicate |
-
2010
- 2010-11-01 CN CN2010205872691U patent/CN201848195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972584A (en) * | 2010-11-01 | 2011-02-16 | 山东聊城鲁西化工第四化肥有限公司 | Device and process for washing phosphoric acid tail gas and cogenerating sodium fluosilicate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101972584A (en) | Device and process for washing phosphoric acid tail gas and cogenerating sodium fluosilicate | |
| CN102230081B (en) | Acid leaching method for extracting potassium, aluminum and silicon elements from potassium feldspar | |
| CN209714792U (en) | A kind of mining self-purging proportion is for liquid circulating device | |
| CN203990292U (en) | A kind of viscose rayon emission-control equipment | |
| CN203155067U (en) | An oxidation alkaline wash deep purification system for yellow phosphorus exhaust | |
| CN201848195U (en) | Device for co-production of sodium fluosilicate in washing of phosphate tail gas | |
| CN101125657A (en) | Method for producing high-purity silicon dioxide | |
| CN213446254U (en) | System for calcium sulfate is prepared and hydrochloric acid is retrieved to calcium chloride | |
| CN104086011B (en) | Be applicable to the technique of zero discharge of viscose fibre industry acid station waste water | |
| CN204865499U (en) | Methyl nitrite's waste gas treatment system | |
| CN204824684U (en) | Cystine purification device | |
| CN102603514A (en) | Process for preparing sodium gluconate from crop straws | |
| CN213376554U (en) | Glass etching solution mixed acid recycling system | |
| CN206295680U (en) | A kind of ardealite filter protector | |
| CN204162410U (en) | The harmless treatment unit of waste silicon powder | |
| CN208791402U (en) | A kind of stainless steel cleaning containing acid wastewater zero discharge waste water unit equipment | |
| CN113289468A (en) | Treatment device for silicon tetrachloride tail gas | |
| CN201195068Y (en) | Water-saving device for xylose manufacturing process | |
| CN113277929B (en) | Cyclohexanol byproduct waste oil treatment and recovery system and treatment process | |
| CN105217576A (en) | Filtration washing control method in hydrogen fluoride preparation technology | |
| CN206244428U (en) | A kind of removal of impurities device for improving quality of industry by-product gypsum | |
| CN203946975U (en) | A kind of spent acid refining plant | |
| CN216106039U (en) | Device for converting waste liquid into calcium sulfate in membrane sulfonation process | |
| CN217264851U (en) | Retrieve device of hydrogen fluoride in follow pentafluoroethane crude | |
| CN211283746U (en) | Equipment for reducing production quantity of sewage in sodium fluosilicate production and recycling sewage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20121101 |