CN1944684A - Method for producing desulfurized sugar by high efficiency active carbon improved sufurous acid method sugar producing process - Google Patents
Method for producing desulfurized sugar by high efficiency active carbon improved sufurous acid method sugar producing process Download PDFInfo
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- CN1944684A CN1944684A CNA2006100487588A CN200610048758A CN1944684A CN 1944684 A CN1944684 A CN 1944684A CN A2006100487588 A CNA2006100487588 A CN A2006100487588A CN 200610048758 A CN200610048758 A CN 200610048758A CN 1944684 A CN1944684 A CN 1944684A
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Abstract
The present invention is improved desulfurized sugar producing sulfurous acid process with high efficiency carbon. The process includes the first mixed sugar cane juice clarifying treatment with sulfurous acid, the subsequent adding high efficiency active carbon in the amount of 0.09-0.2 wt% of juice into the clear juice and adding lime milk to regulate pH value to 6.8-7.6 through full mixing for adsorption in 20-30 min, pressure filtering and straining to obtain high quality juice, evaporating, boiling sugar and purging to obtain high quality desulfurized sugar. The present invention has high sugar quality.
Description
Technical field
The present invention relates to the sugar refining field, specifically improve the method that the sulfurous method sugar refining technology is produced sweetening sugar with high efficiency active carbon for sugar.
Background technology
China's cane sugar manufacture industry all is to adopt traditional carbonatation process and sulfurous method to produce white sugar for a long time, and the white sugar quality product that the carbonatation process production technique is produced is better, but technology is complicated, the cost height, and the filter mud generation is big, and environmental pollution is bigger; Common sulfurous method is simple than the carbonatation process production technique, less investment, and filter mud can be used as agricultural fertilizer, but product colour, turbidity, SO
2Indexs such as residual quantity are higher, and keeping quality is poor, easily jaundice.On October 01st, 2005, China came into effect new GB13104 " sugar hygienic standard ", the SO of one-level white sugar
2Content is adjusted to 30mg/kg under 50mg/kg, estimate that transition will be adjusted into 20mg/kg after 3 years once more, integrates with fully with white sugar international standard A level.The colour of the GB317-2006 one-level white sugar standard that comes into effect on October 01st, 2006 also is adjusted into 150IU from 170IU, and turbidity also is adjusted into 8 ° from 9 °, has brought great challenge for sulfurous method Closed Circulation in Sugar Production enterprise.
Along with improving constantly of living standards of the people, more and more higher to the health requirements of food, to the SO of white sugar
2Content is also relatively more responsive, and China is also more and more stricter to the requirement of white sugar quality product simultaneously.Be long-range long-acting and Sustainable development, the method for quality product is all tried to explore to promote in each sugar refinery, but makes a breakthrough seldom.Our company has carried out the technological transformation of sulfurous method sugaring process for upgrading in conjunction with the characteristics of cane sugar manufacture industry since 2005, be devoted to reduce the SO of white sugar
2Content and colour, turbidity.Because this project is a multidisciplinary integrated autonomous innovation project, be a great change of the inferior method of sugar manufacturing industry being produced existing technology.
Summary of the invention
The purpose of this invention is to provide and a kind ofly improve sulfurous method sugar refining technology production method, can reduce white sugar SO with high efficiency active carbon for sugar
2Content is produced the one-level white sugar of sulphur content below 20mg/kg.
The present invention is on the sulfurous method production process basis, filtered juice after heavy clear juice after the sedimentation and the vacuum suction filter filtration is mixed, with the high efficiency active carbon for sugar thorough mixing after the dilution activation, filter, filter the clear juice that obtains low colour, low sulfur-bearing through reaction container adsorption, pressure filter through secondary filter, for boiling-off provides the fine syrup, produce high-quality " sweetening sugar " after the smart filtered juice evaporation concentration.
The present invention is achieved through the following technical solutions:
The sugarcane mixing juice obtains common clear juice through common sulfurous method clarifying treatment earlier, in clear juice, add high efficiency active carbon for sugar then, the high efficiency active carbon for sugar consumption is 0.09～0.2% of a common clear juice, add milk of lime simultaneously and regulate pH value to 6.8～7.6, behind the thorough mixing, through the adsorption of 20～30min, obtain the smart preferably filtered juice of quality through press filtration, smart filter, smart filtered juice is sent to evaporation, is boiled sugar, purging obtains the higher white sugar of quality (sweetening sugar).
Use after described high efficiency active carbon for sugar thin up is activated to finite concentration, the weight ratio of high efficiency active carbon for sugar and water is 1: 4.5.
Use high efficiency active carbon for sugar and improve the sulfurous method sugar refining technology, can exempt the secondary stove drying technology in the common sulfurous acid production technique, the colour of white sugar finished product, turbidity, SO
2Can be controlled in etc. index and to be better than in the country-level standard range.Overcome that common sulfurous method purification effect is low, finished product colour height, SO
2The problem that residual quantity is high, smart filtered juice colour, turbidity are compared with the clear juice of common sulfurous method can reduce by 30～80%.Wherein the minimum 60IU that reaches of finished product white sugar colour generally can be controlled in 80IU-100IU, can realize artificial control; Residual can the stablizing of SO2 is controlled at below the 10mg/kg, and 80% can be controlled in below the 5mg/kg; Turbidity can be controlled at below 5 degree.It is the huge fund input of carbonatation process that the present invention has saved the sulfurous method technological transformation.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Embodiment 1:
With purity be 80.15AP (simple purity) sugarcane mixing juice (without clarifying treatment) through common sulfurous method handle (be mixing juice by add ash, add phosphoric acid, heating, settling tank clarifying treatment, belong to prior art), remove most of non-sugar and pigment, the common clear juice that obtains, common purity of clear juice 81.7AP, colour 1980IU.Common evaporator supplypump is gone in the mixing tank, the high efficiency active carbon for sugar that adds simultaneously after dilution activates mixes with common clear juice, add milk of lime and regulate pH value, pass through the adsorption of reaction container 20-30min then, further remove non-sugar and pigment in the clear juice to 6.8-7.6; The clear juice of gained is sent into plate-and-frame filter press, remove filter mud, obtain filtered juice, filtered juice obtains the more excellent smart filtered juice of quality after filtering by secondary filter, and smart filtered juice purity is 82.2AP, colour 1200IU.The more common purity of clear juice of smart filtered juice improves 0.5AP, and colour reduces 780IU; Smart filtered juice is sent to after heating, evaporation concentration and is boiled sugar, purging, obtains high-quality sweetening sugar, the white sugar low 30～80% that its colour, turbidity, SO2 make than common sulfurous method.
Wherein, the method for making of the high efficiency active carbon for sugar after the dilution activation is: with 0.09% high efficiency active carbon for sugar of common clear juice amount, than the ratio of water (weight ratio)=1: 4.5 high efficiency active carbon for sugar and water are added the activation bucket in high efficiency active carbon for sugar and dilute activation, add mixing tank then and mix with common clear juice.
Embodiment 2:
Basic step, method are identical with embodiment 1, and difference is that the consumption of high efficiency active carbon for sugar is 0.1% of a common clear juice.
Embodiment 3:
Basic step, method are identical with embodiment 1, and difference is that the consumption of high efficiency active carbon for sugar is 0.2% of a common clear juice.
It is as follows that target level of product quality is carried out the concrete physical and chemical index of Q/LJYJ0302-2005:
| Project | Index | |||
| The top grade product | First grade | Seconds | ||
| Quality | A method caramel percent of decolourization, % 〉= | 110 | 100 | 90 |
| Methylene blue decolorizing ability (1.5g/L), mL/0.1g 〉= | 13.0 | 12.0 | 11.0 | |
| Ash oontent, %≤ | 12.0 | 12.0 | 12.0 | |
| Iron level, %≤ | 0.05 | 0.10 | 0.15 | |
| Chloride content, %≤ | 0.20 | 0.25 | 0.30 | |
| Moisture, %≤ | 35 | 35 | 35 | |
| PH value | 3.0～5.0 | 3.0～5.0 | 3.0～5.0 | |
Wherein, the preparation method of high efficiency active carbon for sugar is as follows:
1, with the bagasse is raw material, bagasse broken up to deliver to fermentation vat other stand-by;
2, soak
(1) complex acid: add in the entry with phosphoric acid, make acid strength reach 45 degree Beaume (° Be) (after comprising the restored acid amount and adding eo-acid);
(2) bagasse soaks: the bagasse that will break up is put into fermentation vat, and after the having peace of mind, in 60 ℃～70 ℃ above-mentioned acid solution suction bagasse fermentation vat, soaking the bagasse time is 5～8 hours;
(3) bagasse press dry: the bagasses by 5 to 8 hours soak, and open out sour valve, with whole acid solutions put do after, the bagasse that will contain acid solution shovels and press dry the pond, is pressed onto bagasse and contains acid solution and reach about 55%, pushes open to press dry mechanical shovel to go out bagasse stand-by;
3, charcoal activation
(1) charing: stove is burnt heat (quirk guarantees that red constant temperature is constant), the bagasse that press dry is transported to stove top with the bamboo square-bottomed bamboo basket carry out charing, constantly evenly stir in the process, make the abundant thermolysis of bagasse, after carbonization process finishes, carbonized material is delivered to activating chamber's activation;
(2) activation (taking off stove): carbonized material is gone into and is in time stirred once after stove finishes, and evenly stirs once in later per 30 minutes, and material must not lump, if to shovel out when caking takes place smash after again shovel go in the stove to activate;
(3) blanking:, judge tentatively (appearance luster is shiny black, has white cigarette to emerge, the little acid of smell) after the activated material maturation that carry out blanking, the activated material blanking finishes according to appearance luster, the smell of activated material, deliver to other stacking of pond for recovering and give the recovery post;
4, phosphoric acid reclaims: a large amount of phosphoric acid in the activated material adopt the recovery of heat method to reclaim:
(1) at first that concentration in the terrine is the highest sour cold liquid of washing adds pond for recovering internal fixing liquid level, shovel activated material then and carry out hot static decomposition 40 minutes, stirred 10 minutes with taking off son again, after evenly stirring 10 minutes with Air Compressor pressure, static 10 minutes, first and second time of breakdown ball valve discharging acid solution high density liquid is gone into the complex acid pond, uses for soaking;
(2) once more the sour cold liquid of washing of different concns in the terrine is added pond for recovering successively according to from high to low principle and reclaim acid solution, and the acid solution that will reclaim gained is put into terrine from high to low successively, do to reclaim usefulness for the second time, when the acid solution that washes out is 0 ° of Be, reclaim and finish;
(3) gac that will reclaim behind the phosphoric acid shovels into tank, with clear water gac is poured sand separator again and sends to the rinsing post;
5, desanding, rinsing and oven dry
(1) desanding: will reclaim the gac of bringing in the post and carry out desanding by sand separator;
(2) rinsing: the gac that comes out in the sand separator is put into corresponding rinsing bath, add additive bicarbonate of ammonia (the gac total amount) 0.8～1%, make gac loose as far as possible, be easy to filter, stir rinsing with clear water again and reach 3～5 until the pH value of rinsing liquid;
(3) oven dry: repeatedly rinsing meets the requirements of gac, shovels out to deliver to dry to shield from rinsing bath to dry, and constantly evenly stirs in the drying course, makes gac moisture content less than 35% o'clock, delivers to the Raymond mill room and stacks the preparation abrasive dust;
6, abrasive dust (Raymond mill)
The gac that oven dry is good is put into the lift feeding mouth, enters Raymond mill by lift to feeding machine, utilizes blower fan outlet damper regulator control feeding, makes the activated carbon product granularity reach 180～200 orders, goes into the bag packing.
Claims (2)
1. one kind is improved the method that the sulfurous method sugar refining technology is produced sweetening sugar with high efficiency active carbon for sugar, it is characterized in that the sugarcane mixing juice obtains common clear juice through common sulfurous method clarifying treatment earlier, in clear juice, add high efficiency active carbon for sugar then, the high efficiency active carbon for sugar consumption is 0.09～0.2% of a common clear juice, add milk of lime simultaneously and regulate pH value to 6.8～7.6, behind the thorough mixing, adsorption through 20～30min, through press filtration, smart filter obtains the smart preferably filtered juice of quality, and smart filtered juice is sent to evaporation, boil sugar, purging obtains the higher sweetening sugar of quality.
2. the method for improving sulfurous method sugar refining technology production sweetening sugar with high efficiency active carbon for sugar according to claim 1, it is characterized in that described high efficiency active carbon for sugar thin up is activated to finite concentration, the weight ratio of high efficiency active carbon for sugar and water is 1: 4.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100487588A CN100519764C (en) | 2006-10-27 | 2006-10-27 | Method for improving sufurous-acid sugar producing process by using suger-used high efficiency active carbon |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100487588A CN100519764C (en) | 2006-10-27 | 2006-10-27 | Method for improving sufurous-acid sugar producing process by using suger-used high efficiency active carbon |
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| Publication Number | Publication Date |
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| CN1944684A true CN1944684A (en) | 2007-04-11 |
| CN100519764C CN100519764C (en) | 2009-07-29 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818214A (en) * | 2010-04-02 | 2010-09-01 | 云南省轻工业科学研究院 | Method for improving sulfurous method production process in cane sugar factory |
| CN101280344B (en) * | 2008-01-11 | 2011-01-05 | 曾仪飞 | Clarification method for sugarcane juice |
| CN103699148A (en) * | 2013-12-11 | 2014-04-02 | 广西柳州浚业科技有限公司 | Cane juice stoving neutralization reaction control system |
| CN105063245A (en) * | 2015-07-15 | 2015-11-18 | 广州甘蔗糖业研究所 | Method for recycling cane sugar factory boiler ash sluicing water |
| CN108842007A (en) * | 2018-06-28 | 2018-11-20 | 广西科技大学 | A kind of process reducing intensity of sulfitation and separated powder active carbon |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1459508A (en) * | 2003-01-23 | 2003-12-03 | 王兆群 | Cleaing method of sulfurous acid method produced syrup |
| CN1629320A (en) * | 2003-12-15 | 2005-06-22 | 中国环境科学研究院 | Process for cleaning sugar cane juice in sugar production from sugar cane |
-
2006
- 2006-10-27 CN CNB2006100487588A patent/CN100519764C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280344B (en) * | 2008-01-11 | 2011-01-05 | 曾仪飞 | Clarification method for sugarcane juice |
| CN101818214A (en) * | 2010-04-02 | 2010-09-01 | 云南省轻工业科学研究院 | Method for improving sulfurous method production process in cane sugar factory |
| CN103699148A (en) * | 2013-12-11 | 2014-04-02 | 广西柳州浚业科技有限公司 | Cane juice stoving neutralization reaction control system |
| CN105063245A (en) * | 2015-07-15 | 2015-11-18 | 广州甘蔗糖业研究所 | Method for recycling cane sugar factory boiler ash sluicing water |
| CN105063245B (en) * | 2015-07-15 | 2018-09-07 | 广东省生物工程研究所（广州甘蔗糖业研究所） | A kind of method of cane sugar factory ash-flushing water recycling |
| CN108842007A (en) * | 2018-06-28 | 2018-11-20 | 广西科技大学 | A kind of process reducing intensity of sulfitation and separated powder active carbon |
| CN108842007B (en) * | 2018-06-28 | 2021-09-24 | 广西科技大学 | Process method for reducing stoving intensity and separating powdered activated carbon |
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|---|---|
| CN100519764C (en) | 2009-07-29 |
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Granted publication date: 20090729 Termination date: 20171027 |