CN101358250A - Clarification method of flue gas saturated with mixed liquid - Google Patents
Clarification method of flue gas saturated with mixed liquid Download PDFInfo
- Publication number
- CN101358250A CN101358250A CNA2008100738087A CN200810073808A CN101358250A CN 101358250 A CN101358250 A CN 101358250A CN A2008100738087 A CNA2008100738087 A CN A2008100738087A CN 200810073808 A CN200810073808 A CN 200810073808A CN 101358250 A CN101358250 A CN 101358250A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- mixing juice
- mixed liquid
- gas
- come
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000003546 flue gas Substances 0.000 title claims abstract description 10
- 238000005352 clarification Methods 0.000 title claims description 10
- 239000007788 liquid Substances 0.000 title claims description 7
- 229920006395 saturated elastomer Polymers 0.000 title claims description 7
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims abstract description 34
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 238000007667 floating Methods 0.000 claims abstract description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 claims description 16
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 14
- 238000002203 pretreatment Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000003500 flue dust Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 3
- 239000011593 sulfur Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 2
- 239000010452 phosphate Substances 0.000 abstract 2
- FPGGOFQJXNBOTC-UHFFFAOYSA-N OS(O)=O.OP(O)(O)=O Chemical compound OS(O)=O.OP(O)(O)=O FPGGOFQJXNBOTC-UHFFFAOYSA-N 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 238000003958 fumigation Methods 0.000 abstract 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 5
- 229930006000 Sucrose Natural products 0.000 description 5
- 240000000111 Saccharum officinarum Species 0.000 description 3
- 235000007201 Saccharum officinarum Nutrition 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 229960004793 sucrose Drugs 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000013872 defecation Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
Abstract
The invention discloses a flue gas saturation mixed juice settling method, which is that flue gas is adopted to carry out the saturation pretreatment of mixed juice on the basis of the phosphate sulfite method before the sulfur fumigation of the mixed juice is carried out; then the mixed juice is treated by the floating treatment to remove part of impurities and reducing sugar to enable the mixed juice to reach an ideal effect, at the same time, the utilization of the flue gas can reduce the using amount of phosphate and sulfur and the production amount of filter mud is reduced to achieve the purposes of improving the sugar boiling recovery, lowering the intensity of sulfitation and the using amount of the phosphate and improving the product quality.
Description
Technical field
The present invention relates to a kind of cleaning technique of cane sugar manufacture sugarcane juice, especially a kind of clarification method of flue gas saturated with mixed liquid.
Background technology
The clarification operation is a most important link to the quality product in sugar refinery and the influence of sugar recovery, and defecation method is varied at present, and commonplace use is carbonatation process and phosphoric acid sulfurous method clarification process.Its quality product of carbonatation process technology is better, but the filter mud that is produced is treated to a great problem at present for alkalescence; Phosphoric acid sulfurous method filter mud can be used as fertilizer and is used for farm crop, but the not enough carbonatation process of its quality product is stable, and product white sugar sulphur content is higher simultaneously also is the ubiquitous problem in present sugar refinery.
Summary of the invention
The present invention is adopting stack gas that it is carried out the full charge pre-treatment before the mixing juice stove drying on the basis of phosphoric acid sulfurous method, float again and handle to remove partial impurities, pigment and reducing sugar, thereby reach the raising sugarcane juice purity, reduce intensity of sulfitation, the purpose of improving the quality of products.
The technical solution used in the present invention is: the principle of utilizing carbonic acid gas in the stack gas and mixing juice to carry out removing after the full charge partial impurities, pigment and reducing sugar is carried out pre-treatment to mixing juice, float again and handle to remove partial impurities, reducing sugar, so that mixing juice reaches even more ideal effect, can reduce consumption to the utilization of stack gas simultaneously to phosphoric acid, sulphur, reduce the generation of filter mud, improve the sugar recovery to reach, reduce intensity of sulfitation, improve the white sugar quality product.
Technological process is:
On the basis of phosphoric acid sulfurous method, before the mixing juice stove drying, adopt stack gas it to be carried out the full charge pre-treatment, the processing of floating again.
Stack gas full charge treating processes is to utilize blower fan or vacuum pump to extract the stack gas of boiler export, removes most flue dust impurity through the processing of water dust scrubber, enters gas-holder then, delivers to filling-up pot again; Phosphoric acid is grey in advance once to be heated to 65～70 ℃ to the mixing juice that comes out from squeezing to PH 7.5～8.0 through adding, and pump is to filling-up pot, and mixing juice is from flowing down, and stack gas is walked from the bottom up, both abundant contact reactss.
The come-up treating processes is that mixing juice enters an agitator tank, enters the come-up device by agitator tank again, adds the flocculation agent of 2～3ppm before entering, during the mixing juice pumping desulfuration that comes out after come-up is smoked and operation.
The present invention utilizes carbonatation process full charge principle, carbonic acid gas through with sugarcane juice in Ca
+Deng generation precipitation behind the cationoid reaction, thereby part that can be removed pigment and impurity reach the purpose of improving the quality of products.Though this technology can not be used in sulfitation sugar mill to replace SO comprehensively
2Effect, but we can utilize its characteristics that mixing juice is carried out pre-treatment so that mixing juice reaches even more ideal effect.
The advantage of clarification method of flue gas saturated with mixed liquid of the present invention is: drawn the advantage of carbonatation process clarification process, made full use of the CO in the boiler flue
2Stack gas is carried out full charge to mixing juice and is handled, mixing juice after the processing is because its physical and chemical index good than after being untreated, so when adding phosphoric acid, can suitably reduce the phosphoric acid consumption, in stove drying and the time the required corresponding reduction about 20% of intensity of sulfitation, so not only can reduce the consumption of phosphoric acid and sulphur but also reduce the residual sulfur content of product white sugar, the filter mud amount that produces reduces thereupon, the sugar part also corresponding minimizing of taking away with filter mud.Be the phosphoric acid sulfurous method because of what mainly take simultaneously, defeco-sulfitated juice PH is between 6.8～7.3, so also do not exist the carbonatation process filter mud to handle difficult problem.Moreover because of when squeezing is grey in advance, pH value is higher, and has removed partial impurities and reducing sugar after come-up, and the purity of mixing juice increases, and the also corresponding minimizing of sucrose inversion has been got positive effect to proposing high sugar content boiling-off withdrawal, and improved quality product.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Elaborate below in conjunction with embodiment.
Utilize high-power blower or vacuum pump to extract the stack gas of boiler export, remove most flue dust impurity, enter gas-holder 2 then, deliver to filling-up pot 3 again through the processing of water dust scrubber 1; (the available phosphorus acid number can reduce to 300～350ppm) by 400～450ppm of stack gas full charge of no use to PH 7.5～8.0 through adding phosphoric acid and pre-ash from squeezing the mixing juice that comes out, once be heated to 65～70 ℃, pump is to filling-up pot, mixing juice is from flowing down, stack gas is walked from the bottom up, after both abundant contact reactss, mixing juice enters an agitator tank 4, fully stir, enter come-up device 5 by agitator tank again, the flocculation agent that adds 2～3ppm before entering, the mixing juice that after come-up, the comes out smoked neutralization of pumping desulfuration again, intensity of sulfitation can be reduced to 15～18cc (deciding on juice quality clearly) by 20 original～24cc, and other processing condition are by former phosphoric acid sulfurous method constant (schema is seen accompanying drawing).
Through repeatedly sampling analysis, CO in stack gas
2Concentration is 12% o'clock, obtains its purity of mixing juice after this art breading than original average raising 1.27AP, and the raising rate is 1.48%, and the colour reduced rate is 41.84%, and reducing sugar reduces by 3.64%.
Claims (3)
1, a kind of clarification method of flue gas saturated with mixed liquid is characterized in that: on the basis of phosphoric acid sulfurous method, adopt stack gas it to be carried out the full charge pre-treatment, the processing of floating again before the mixing juice stove drying.
2, clarification method of flue gas saturated with mixed liquid according to claim 1, it is characterized in that: stack gas full charge treating processes is to utilize blower fan or vacuum pump to extract the stack gas of boiler export, most flue dust impurity is removed in processing through water dust scrubber, enter gas-holder then, deliver to filling-up pot again; Phosphoric acid is also grey in advance once to be heated to 65～70 ℃ to the mixing juice that comes out from squeezing to PH7.5～8.0 through adding, and pump is to filling-up pot, and mixing juice is from flowing down, and stack gas is walked from the bottom up, both abundant contact reactss.
3, clarification method of flue gas saturated with mixed liquid according to claim 1, it is characterized in that: the come-up treating processes is that mixing juice enters an agitator tank, enter the come-up device by agitator tank again, add the flocculation agent of 2～3ppm before entering, during the mixing juice pumping desulfuration that comes out after come-up is smoked and operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100738087A CN101358250B (en) | 2008-09-25 | 2008-09-25 | Clarification method of flue gas saturated with mixed liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100738087A CN101358250B (en) | 2008-09-25 | 2008-09-25 | Clarification method of flue gas saturated with mixed liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101358250A true CN101358250A (en) | 2009-02-04 |
| CN101358250B CN101358250B (en) | 2011-04-20 |
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|---|---|---|---|
| CN2008100738087A Active CN101358250B (en) | 2008-09-25 | 2008-09-25 | Clarification method of flue gas saturated with mixed liquid |
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| Country | Link |
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| CN (1) | CN101358250B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031316A (en) * | 2011-01-06 | 2011-04-27 | 钮德明 | Method for heating cane juice by using waste heat of flue gas of boiler |
| CN102732644A (en) * | 2012-07-24 | 2012-10-17 | 广西大学 | High-efficiency carbonation device for sugar manufacturing |
| CN103014183A (en) * | 2012-12-28 | 2013-04-03 | 彭思云 | Quick high-efficiency reverse carbonation tank |
| CN103173578A (en) * | 2013-03-15 | 2013-06-26 | 广西东糖投资有限公司 | Sugarcane juice clarifying method |
| CN103233083A (en) * | 2013-05-16 | 2013-08-07 | 彭思云 | Sugar juice settle low-ash low-temperature carbonating method |
| CN104805222A (en) * | 2015-04-02 | 2015-07-29 | 广西大学 | Refined sugar clarification device |
| GB2522777A (en) * | 2013-12-23 | 2015-08-05 | T & L Sugars Ltd | Novel purification processes |
-
2008
- 2008-09-25 CN CN2008100738087A patent/CN101358250B/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031316A (en) * | 2011-01-06 | 2011-04-27 | 钮德明 | Method for heating cane juice by using waste heat of flue gas of boiler |
| CN102031316B (en) * | 2011-01-06 | 2013-11-06 | 钮德明 | Method for heating cane juice by using waste heat of flue gas of boiler |
| CN102732644A (en) * | 2012-07-24 | 2012-10-17 | 广西大学 | High-efficiency carbonation device for sugar manufacturing |
| CN102732644B (en) * | 2012-07-24 | 2013-12-11 | 广西大学 | High-efficiency carbonation device for sugar manufacturing |
| CN103014183A (en) * | 2012-12-28 | 2013-04-03 | 彭思云 | Quick high-efficiency reverse carbonation tank |
| CN103173578A (en) * | 2013-03-15 | 2013-06-26 | 广西东糖投资有限公司 | Sugarcane juice clarifying method |
| CN103173578B (en) * | 2013-03-15 | 2015-01-07 | 广西东糖投资有限公司 | Sugarcane juice clarifying method |
| CN103233083A (en) * | 2013-05-16 | 2013-08-07 | 彭思云 | Sugar juice settle low-ash low-temperature carbonating method |
| GB2522777A (en) * | 2013-12-23 | 2015-08-05 | T & L Sugars Ltd | Novel purification processes |
| US9976193B2 (en) | 2013-12-23 | 2018-05-22 | T&L Sugars Limited | Purification processes |
| CN104805222A (en) * | 2015-04-02 | 2015-07-29 | 广西大学 | Refined sugar clarification device |
| CN104805222B (en) * | 2015-04-02 | 2018-02-27 | 广西大学 | A kind of refined sugar clarifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101358250B (en) | 2011-04-20 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20090204 Assignee: Yunnan Funing Yongxin Sugar Co. Assignor: GUANGXI YONGXINHUA SUGAR GROUP Co.,Ltd. Contract record no.: 2013530000027 Denomination of invention: Clarification method of flue gas saturated with mixed liquid Granted publication date: 20110420 License type: Exclusive License Record date: 20130411 |
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Assignee: Yunnan Funing Yongxin Sugar Co. Assignor: GUANGXI YONGXINHUA SUGAR GROUP Co.,Ltd. Contract record no.: 2013530000027 Date of cancellation: 20170801 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
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Application publication date: 20090204 Assignee: GUANGXI DAXIN COUNTY LEIPING YONGXIN SUGAR Co.,Ltd. Assignor: GUANGXI YONGXINHUA SUGAR GROUP Co.,Ltd. Contract record no.: 2017450000018 Denomination of invention: Clarification method of flue gas saturated with mixed liquid Granted publication date: 20110420 License type: Common License Record date: 20170801 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170825 Address after: 532312 Guangxi Xinxian County Lei Ping Zhen Patentee after: GUANGXI DAXIN COUNTY LEIPING YONGXIN SUGAR Co.,Ltd. Address before: 530022 No. 38, Jinhu Road, Nanning, the Guangxi Zhuang Autonomous Region Patentee before: GUANGXI YONGXINHUA SUGAR GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 532312 Leiping Town, Daxin County, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Daxin Xianggui Sugar Making Co.,Ltd. Address before: 532312 Reping Town, Xinxian County, Guangxi Patentee before: GUANGXI DAXIN COUNTY LEIPING YONGXIN SUGAR Co.,Ltd. |
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Effective date of registration: 20200908 Address after: The small town of Pingyang Development Zone 546111 the Guangxi Zhuang Autonomous Region Laibin City District Patentee after: Guangxi Laibin Xiaoping Yang Xianggui Sugar Making Co.,Ltd. Address before: 532312 Leiping Town, Daxin County, Guangxi Zhuang Autonomous Region Patentee before: Guangxi Daxin Xianggui Sugar Making Co.,Ltd. |