CN202730042U - Washing water utilizing device for acid washing step by citric acid - Google Patents
Washing water utilizing device for acid washing step by citric acid Download PDFInfo
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- CN202730042U CN202730042U CN 201220224474 CN201220224474U CN202730042U CN 202730042 U CN202730042 U CN 202730042U CN 201220224474 CN201220224474 CN 201220224474 CN 201220224474 U CN201220224474 U CN 201220224474U CN 202730042 U CN202730042 U CN 202730042U
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- acid
- citric acid
- washing
- area
- washed
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Abstract
The utility model relates to a washing water utilizing device for an acid washing step by citric acid. A solid-liquid mixture of citric acid and calcium sulfate enters into a feed liquid filtering area. The citric acid solution is filtered, and stored in a citric acid filtering and storage tank and rotated along with a belt filter. Calcium sulfate carrying part of citric acid enters into a strong acid washing area. In the area, most part of citric acid is washed by washing water. Other calcium sulfate in the area is washed by dilute acid continuously till the content of citric acid in the dilute acid reaches a certain concentration, and the washing water is changed. Calcium sulfate washed in the strong acid washing area still contains part of citric acid and then enters into a dilute acid washing area to be washed continuously. In the area, the rest of citric acid is completely washed, and the washing water washes other calcium sulfate in the area continuously. When the citric acid washed by the washing water reaches a certain concentration and becomes dilute acid, the citric acid enters into the strong acid washing area to be washed, while the fresh washing water in the dilute acid washing area is changed again.
Description
Technical field
The utility model belongs in the calcium salt method production citric acid process washes sour operation energy conservation field, is specially citric-acid washing working-procedure washing-water utilizing device.
Background technology
Calcium salt method is produced in the citric acid technological process, citric acid is after neutralization, decomposing, enter and wash sour operation, purpose is that the calcium sulfate that will produce in citric acid and the decomposition course separates, behind primary filter, most citric acid solution is filtered separation, but residual a large amount of citric acid also in the calcium sulphate solid slag, therefore, this part citric acid must be reclaimed the yield that can improve citric acid production.The general method of wash-down water wash rinse that adopts develops this part citric acid, but in washing process, if water consumption is too many, not only increased the water consumption of citric acid production, if this part dilture acid mixes with concentrated acid, enter together rear operation, then can cause the reduction of citric acid solution overall density, and then increased the steam consumption of follow-up enrichment process.
The utility model content
The technical problem that the utility model solves is to provide citric-acid washing working-procedure washing-water utilizing device, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
Citric-acid washing working-procedure washing-water utilizing device, the solidliquid mixture of citric acid and calcium sulfate is put into the feed liquid filtrating area, most citric acid is filtered, be stored to citric acid filtered liquid storage tank, rotation along with band filter, the calcium sulfate that carries part citric acid enters the concentrated acid washing section, in this zone, the citric acid that major part is carried secretly is washed out by wash water, this part dilture acid is recycled to the concentrated acid storage tank through pipeline, continue to use dilture acid that other calcium sulfate that enters the concentrated acid washing section is washed, until citric acid content reaches finite concentration in the dilture acid, change again wash water.So namely save bath water, ensured again the dilture acid concentration of citric acid, be follow-up concentrated a large amount of steam of having saved; The calcium sulfate that after the washing of concentrated acid washing section, still contains part citric acid, then enter the dilture acid washing section and continue washing, in this zone, remaining citric acid is all washed out, washing water enter the dilture acid washing section through dilture acid storage tank, dilture acid reuse pipeline and continue other calcium sulfate of washing, after the citric acid of this part wash water reaches finite concentration, just enter feed liquid concentrated acid washing section and wash, the dilture acid washing section is then changed fresh wash water again.
Beneficial effect
The utility model takes full advantage of water resources, has reduced the water consumption of this operation, has guaranteed the yield of citric acid, has reduced production cost, has improved economic benefit.
Description of drawings
Fig. 1 is device schematic diagram of the present utility model.
Embodiment
For technique means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, the device schematic diagram of citric-acid washing working-procedure washing-water utilizing device, citric-acid washing working-procedure washing-water utilizing device, the solidliquid mixture of citric acid and calcium sulfate enters feed liquid filtrating area 2, most citric acid is filtered and is stored to citric acid filtered liquid storage tank 12, rotation along with band filter, the calcium sulfate that carries part citric acid enters concentrated acid washing section 3, in this zone, most of citric acid of being carried secretly is washed out by wash water, enters concentrated acid storage tank 10, and this part dilture acid is delivered to concentrated acid washing section 3 through concentrated acid reuse pipeline 6 to be continued other calcium sulfate is washed, until citric acid content reaches finite concentration in the concentrated acid, change again wash water.The calcium sulfate that after 3 washings of concentrated acid washing section, still contains part citric acid, then enter dilture acid washing section 4 and continue washing, in this zone, remaining citric acid is all washed out, washing water enter dilture acid washing section 4 through dilture acid storage tank 11, dilture acid reuse pipeline 5 and continue other calcium sulfate of washing, after the citric acid in this part wash water reaches finite concentration, just entering concentrated acid washing section 3 washs, dilture acid washing section 4 is then changed fresh wash water again, so namely take full advantage of water resources, reduce the water consumption of this operation, guaranteed again the yield of citric acid.Thereby reduced production cost, improved economic benefit.
Above demonstration and described ultimate principle of the present utility model and principal character and advantage of the present utility model; the technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification sheets just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. citric-acid washing working-procedure washing-water utilizing device, comprise band filter, the feed liquid filtrating area, the concentrated acid washing section, the dilture acid washing section, dilture acid reuse pipeline, concentrated acid reuse pipeline, concentrated acid reuse pipe-line control valves, dilture acid reuse pipe-line control valves, dilture acid reuse pipe-line control valves, the concentrated acid storage tank, dilture acid storage tank and citric acid filtered liquid storage tank, it is characterized in that, the workplatform of band filter is divided into the feed liquid filtrating area, the concentrated acid washing section, dilture acid washing section Three regions, the dilture acid that the dilture acid storage tank is collected can return the concentrated acid washing section and the dilture acid washing section washs feed liquid, realizes the recycling of wash water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224474 CN202730042U (en) | 2012-05-11 | 2012-05-11 | Washing water utilizing device for acid washing step by citric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224474 CN202730042U (en) | 2012-05-11 | 2012-05-11 | Washing water utilizing device for acid washing step by citric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730042U true CN202730042U (en) | 2013-02-13 |
Family
ID=47655761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220224474 Expired - Fee Related CN202730042U (en) | 2012-05-11 | 2012-05-11 | Washing water utilizing device for acid washing step by citric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202730042U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307389A (en) * | 2021-12-16 | 2022-04-12 | 潍坊英轩实业有限公司 | Filtering method for improving citric acid extraction yield and feed liquid quality |
-
2012
- 2012-05-11 CN CN 201220224474 patent/CN202730042U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114307389A (en) * | 2021-12-16 | 2022-04-12 | 潍坊英轩实业有限公司 | Filtering method for improving citric acid extraction yield and feed liquid quality |
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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: 20130213 Termination date: 20130511 |