CN201723976U - Dredging device of high-concentration caustic soda liquid delivering pipeline - Google Patents
Dredging device of high-concentration caustic soda liquid delivering pipeline Download PDFInfo
- Publication number
- CN201723976U CN201723976U CN2010202217212U CN201020221721U CN201723976U CN 201723976 U CN201723976 U CN 201723976U CN 2010202217212 U CN2010202217212 U CN 2010202217212U CN 201020221721 U CN201020221721 U CN 201020221721U CN 201723976 U CN201723976 U CN 201723976U
- Authority
- CN
- China
- Prior art keywords
- caustic soda
- liquid caustic
- dredging device
- soda liquid
- conveyance conduit
- 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
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title claims abstract description 159
- 239000007788 liquid Substances 0.000 title claims abstract description 55
- 235000011121 sodium hydroxide Nutrition 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 abstract description 9
- 206010037544 Purging Diseases 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000010926 purge Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003513 alkali Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Pipeline Systems (AREA)
Abstract
The utility model discloses a dredging device of a high-concentration caustic soda liquid delivering pipeline. The caustic soda liquid outlet end of a caustic soda liquid delivering pump of the caustic soda liquid delivering pipeline is provided with a steam pipeline. The dredging device of high-concentration caustic soda liquid delivering pipeline can eliminate the blockage of the pipeline in the interrupted delivery process of high-concentration caustic soda liquid.
Description
Technical field
The utility model relates to the alumina producing field, particularly a kind of high concentration liquid caustic soda conveyance conduit dredging device.
Background technique
What the production method of present aluminium oxide in the world was most widely used is Bayer method, Bayer method is produced the process that one of main process process in leaching is aluminum ore and sodium hydroxide solution reaction, the normal sodium hydroxide solution of producing takes the form of through the decomposition nut liquid after concentrating, but ordinary production is the consumption that has alkali, so ordinary production is to need continuously or be interrupted additional alkali, Bayer method is to produce that main what replenish is liquid base, liquid base is according to the difference of production technology, the product liquid alkali concn of producing is different, the liquid caustic soda concentration of using is high more, water content is just low more, just little to whole alumina producing system concentration affects, particularly can significantly reduce the burden of vaporizer, so alumina producing is with more and more being inclined to use the high concentration liquid caustic soda.Market liquid caustic soda concentration generally has three kinds, 30%, 32% with 48%, the conveying of production process liquid caustic soda is all passed through line transportation with pump, and because the seamless welded pipe of the general employing of the strong conveyance conduit of corrosivity of liquid caustic soda, under normal weather, the conveying of various concentration is all normal, but in the winter time particularly under-10 ℃ temperature, and the liquid caustic soda course of conveying of 48% concentration the termination of pumping post crystallization often occurs and separates out the situation influence of blocking pipe and carry next time.Even the liquid caustic soda of low density can keep the unimpeded of pipeline with the method for wind pipeline purging after by termination of pumping under-10 ℃ the temperature, but the liquid caustic soda crystallization of high concentration separates out soon, and the wind pipeline purging is not thorough, can cause the obstruction of liquid caustic soda conveyance conduit.
The model utility content
One of the purpose of this utility model provides and can guarantee that liquid caustic soda under the low temperature is interrupted the unobstructed high concentration liquid caustic soda conveyance conduit dredging device of conveyance conduit in the course of conveying.
According to an aspect of the present utility model, a kind of high concentration liquid caustic soda conveyance conduit dredging device is provided, at the liquid caustic soda outlet end of the liquid caustic soda transfer pump of liquid caustic soda conveyance conduit steam line is set.
Liquid caustic soda entry end at the liquid caustic soda transfer pump of liquid caustic soda conveyance conduit also is provided with the airduct road.
Described steam line is at least 1 the tunnel.
Described airduct road is at least 1 the tunnel.
The high concentration liquid caustic soda conveyance conduit dredging device that the utility model provides can be eliminated the obstruction of high concentration liquid caustic soda pipeline in being interrupted course of conveying.
Description of drawings
Fig. 1 is the structural representation of the high concentration liquid caustic soda conveyance conduit dredging device that provides of the utility model embodiment.
The utility model purpose, function and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
As shown in Figure 1, the high concentration liquid caustic soda conveyance conduit dredging device that the utility model embodiment provides, liquid caustic soda outlet end at the liquid caustic soda transfer pump of liquid caustic soda conveyance conduit 1 is provided with one road steam line 2, and at the liquid caustic soda entry end of the liquid caustic soda transfer pump of liquid caustic soda conveyance conduit 1 airduct road 3 is set also.Under the low temperature, the high concentration liquid caustic soda is opened steam line 2 steam pipeline purging earlier after carrying and finishing in the winter time, and after steam was got through, steam off was opened the 3 thorough pipeline purgings of airduct road again, can guarantee the unimpeded of liquid caustic soda conveyance conduit.
This device is carried at low temperatures to the high concentration liquid caustic soda can separate out remnant liquid caustic soda in the pipeline at low temperatures fast after finishing.Can make behind remaining the high concentration liquid caustic soda and vapor mixing earlier with the steam pipeline purging, not only temperature raise and also it is mixed after concentration decline, greatly reduce the speed that crystallization is separated out; Then use the wind pipeline purging again, liquid caustic soda remaining in the pipeline is thoroughly removed, avoided line clogging, avoided the loss of labor cleaning and liquid caustic soda.
The foregoing description is the utility model preferred implementation; but mode of execution of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (4)
1. high concentration liquid caustic soda conveyance conduit dredging device is characterized in that:
Liquid caustic soda outlet end at the liquid caustic soda transfer pump of liquid caustic soda conveyance conduit is provided with steam line.
2. device according to claim 1 is characterized in that:
Liquid caustic soda entry end at the liquid caustic soda transfer pump of liquid caustic soda conveyance conduit also is provided with the airduct road.
3. device according to claim 1 is characterized in that:
Described steam line is at least 1 the tunnel.
4. device according to claim 2 is characterized in that:
Described airduct road is at least 1 the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202217212U CN201723976U (en) | 2010-06-10 | 2010-06-10 | Dredging device of high-concentration caustic soda liquid delivering pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202217212U CN201723976U (en) | 2010-06-10 | 2010-06-10 | Dredging device of high-concentration caustic soda liquid delivering pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723976U true CN201723976U (en) | 2011-01-26 |
Family
ID=43492309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202217212U Expired - Lifetime CN201723976U (en) | 2010-06-10 | 2010-06-10 | Dredging device of high-concentration caustic soda liquid delivering pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723976U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614256A (en) * | 2018-06-19 | 2019-12-27 | 南通星辰合成材料有限公司 | Anti-crystallization device for liquid caustic soda head tank pipeline and application thereof |
-
2010
- 2010-06-10 CN CN2010202217212U patent/CN201723976U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614256A (en) * | 2018-06-19 | 2019-12-27 | 南通星辰合成材料有限公司 | Anti-crystallization device for liquid caustic soda head tank pipeline and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170712 Address after: Nam Dinh town Zhangdian District Shandong city Zibo province 255052 five km road No. Co-patentee after: China Aluminum Shandong Co., Ltd. Patentee after: Shandong Aluminium Industry Co. Address before: 100082 Beijing, Xizhimen, North Street, No. 62, No. Patentee before: Aluminum Corporation of China Limited |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |