CN109402299A - A kind of alkalinity sulfurous method sugar refining technology - Google Patents

A kind of alkalinity sulfurous method sugar refining technology Download PDF

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Publication number
CN109402299A
CN109402299A CN201811322346.8A CN201811322346A CN109402299A CN 109402299 A CN109402299 A CN 109402299A CN 201811322346 A CN201811322346 A CN 201811322346A CN 109402299 A CN109402299 A CN 109402299A
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China
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juice
ash
group
lime
milk
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CN201811322346.8A
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Chinese (zh)
Inventor
郭光海
泰勇
凌国士
吴恒锋
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GUANGXI CHONGZUO XIANGGUI SUGAR CO Ltd
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GUANGXI CHONGZUO XIANGGUI SUGAR CO Ltd
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Priority to CN201811322346.8A priority Critical patent/CN109402299A/en
Publication of CN109402299A publication Critical patent/CN109402299A/en
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    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/02Purification of sugar juices using alkaline earth metal compounds

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Dairy Products (AREA)

Abstract

The present invention provides a kind of alkaline sulfurous method sugar refining technology, using multiple spot is gradual plus grey mode, and colloidal substance is agglomerated, while also sugarcane juice being made to remain at alkalinity well, effectively protects sucrose, reduce the loss of Sucrose Content.And the advantages of making full use of carbonatation process technique; pH value is improved to 10.5~11.5 before sugar-cane juice carries out stove drying; the basicity of sugarcane juice is increased to certain degree, subsequently into stove drying link, had both avoided the too low destruction to sucrose of sugarcane juice pH value bust after stove drying; Sucrose Content is effectively protected; and syrup produces a large amount of calcium sulfite in a short time with lime reaction, to adsorb more non-sugar substances; purity is improved, to improve the white granulated sugar ratio of first-grade products.

Description

A kind of alkalinity sulfurous method sugar refining technology
Technical field
The present invention relates to sugar refining fields, and in particular to a kind of alkalinity sulfurous method sugar refining technology.
Background technique
China is that mainly have stone according to the difference of cane sugar manufacture technique with earliest one of the country of cane sugar manufacture in the world 3 kinds of methods such as grey method, sulfurous method, carbonatation process.The industrial sucrose in China passes through the construction and development of many years, achieves and looks steadily throughout the world Purpose achievement.Especially recent years, the expansion year by year of Closed Circulation in Sugar Production scale, the progress of production technology and management it is continuous complete Kind, sugar enterprise achieves good social and economic benefit.
The production technology that most domestic sugar refinery uses at present is sulfurous method and carbonatation process, with regard to clear treatment effect side For face, carbonatation process is better than sulfurous method, is in particular in that carbonatation process process can be more than the impurity that sulfurous method removes, The feed purity obtained after processing is higher, conducive to the withdrawal of sugared part and the raising of product quality, but the disadvantage is that carbonatation process technique Process is more complex, and the filter mud generated in production is difficult to handle, and effect on environment is big, and the sustainability of production is restricted, and raw It produces at high cost.Therefore, the cane sugar manufacture in China is essentially all sulfurous method production at present.Sulfitation process craft process is simple, Cost is relatively low for production, and influence to environment is smaller in producing, however the cane juice clarification efficiency of sulfitation process craft processing compared with Low, the impurity of removing is insufficient, the limited extent that juice purity improves after processing, and sugared part recovery is low.
Therefore, seek a rationally efficient sugar refining technology method, the excellent of both sulfurous method and carbonatation process can be integrated Point can improve clarifying effect and simplification of flowsheet method, it has also become the emphasis of sugaring work now.
Summary of the invention
Goal of the invention of the invention is, in view of the above-mentioned problems, providing a kind of alkaline sulfurous method sugar refining technology, to make full use of It the advantages of carbonatation process technique, applies it in sulfitation process craft, and using multiple spot is gradual plus grey mode, sugarcane juice is made to begin It is maintained at alkalinity eventually, effectively protects sucrose, reduces the loss of Sucrose Content.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of alkalinity sulfurous method sugar refining technology first carries out five groups of squeezer squeezings, then carries out stove drying neutralization, and carry out It is segmented pre- ash;Specific implementation step is as follows:
S1. it is pre- for the first time that the sugarcane juice of the sugarcane juice and second group of squeezer squeezing that first group of squeezer are squeezed mixes progress Ash, it is 7.6~8.0 that milk of lime, which is added, and adjusts pH.
S2. sugarcane juice third group squeezer squeezed carries out second of pre- ash, and it is 10.5 that milk of lime, which is added, and adjusts pH ~11, then first group of squeezer will be sent by the juicing of second of pre- ash.
S3. the sugarcane juice by the 4th group of squeezer squeezing is sent into second group of squeezer.
S4. the sugarcane juice of the 5th group of squeezer squeezing is subjected to the pre- ash of third time, it is 8.0~8.5 that milk of lime, which is added, and adjusts pH, Then third group squeezer will be sent by the juicing of the pre- ash of third time.
S5. it sieves the sugarcane juice march that step S1 is obtained to obtain mixed juice, the mixed juice is then carried out the 4th time in advance Ash, it is 9~10.5 that milk of lime, which is added, and adjusts pH, obtains system refining mixed juice.
S6. system refining mixed juice is subjected to the 5th pre- ash, it is 10.5~11.5 that milk of lime, which is added, and adjusts pH;Then it passes through Stove drying neutralizes to obtain stove drying mixed juice.
S7. the stove drying mixed juice is added milk of lime to adjust pH is 7.0~7.4, carries out plus ash neutralizes and obtains subsider juice.
Preferably, in the step S5, before carrying out the 5th pre- ash, system refining mixed juice is heated to 50~55 ℃。
Preferably, five groups of squeezers use 1~3 crusher respectively.
Preferably, first group of squeezing, second group of squeezing, the squeezing of third group, the 4th group of squeezing use a crusher, institute The 5th group of squeezing is stated using two crushers.
Preferably, in the step S5, the mixed juice is subjected to the 4th pre- ash, it is 10 that milk of lime, which is added, and adjusts pH, Obtain system refining mixed juice.
Preferably, in the step S6, system refining mixed juice is subjected to the 5th pre- ash, milk of lime adjusting pH, which is added, is 11。
Due to the adoption of the above technical scheme, the invention has the following advantages:
1. alkaline sulfurous method sugar refining technology of the invention, the advantages of making full use of carbonatation process technique, Asia is applied it to In sulfuric acid process, and using multiple spot is gradual plus grey mode, so that sugarcane juice is remained at alkalinity, effectively protect sugarcane Sugar reduces the loss of Sucrose Content.
Using multiple spot is gradual plus grey mode, and colloidal substance is agglomerated well, while also sugarcane juice being made to begin It is maintained at alkalinity eventually, effectively protects sucrose, reduces the loss of Sucrose Content.
The advantages of making full use of carbonatation process technique, applies it in sulfitation process craft, devises adding for the pre- ash of squeezing Grey combined system makes full use of the isoelectric point of colloidal substance pH10.5~11.5 in carbonatation process technique in sugarcane juice (in sugar-cane juice Improve pH value to 10.5~11.5 before stove drying), pH value is improved again before entering stove drying, by the basicity of sugarcane juice It is increased to certain degree, subsequently into stove drying link, had both avoided sugarcane juice pH value bust after stove drying is too low from breaking to sucrose It is bad, Sucrose Content is effectively protected, and syrup produces a large amount of calcium sulfite, to adsorb in a short time with lime reaction More non-sugar substances, in addition sulfurous acid reacts under conditions of alkalinity with the calcium ion in lime generates CaSO3, sediment It is more solid, it is conducive to precipitating and filtering, purification effect is higher, purity is improved, to improve the white granulated sugar ratio of first-grade products.
2. alkaline sulfurous method sugar refining technology of the invention is first to heat to 50 before improving pH to 10.5~11.5 It~55 DEG C, is handled at neutrality, 60~65 DEG C relative to prior art, sucrose can be effectively protected, prevent sugar transition, To reduce the loss of Sucrose Content.
3. alkaline sulfurous method sugar refining technology of the invention, simple process, effect is obvious, easy to industrialized production, has Good market prospects.
Detailed description of the invention
Fig. 1 is the flow chart of sugar refining technology of the present invention;
Fig. 2 is the production system figure of sugar refining technology of the present invention;
In Fig. 2,1-1# crusher, 2-2# crusher, 3-3# crusher, 4-4# crusher, 5-5# crusher, 6-6# crusher, 7- mixed juice Case, 8- refine mixed juice case, 9- stove drying averager.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to embodiments with attached drawing The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
As shown in Fig. 2, the present invention uses one with first group of squeezing, second group of squeezing, the squeezing of third group, the 4th group of squeezing Crusher, the 5th group of squeezing are illustrated for using two crushers, and production system includes being sequentially communicated 1# crusher 1,2# squeezing Machine 2,3# crusher 3,4# crusher 4,5# crusher 5 and 5# crusher 5 further include the mixed juice case 7 being connected to 1# crusher 1,2# crusher 2, The connection refining mixed juice case 8 of mixed juice case 7, refining mixed juice case 8 are connected to stove drying averager 9.
Embodiment 1
A kind of alkalinity sulfurous method sugar refining technology first carries out five groups of squeezer squeezings, then carries out stove drying neutralization, and carry out It is segmented pre- ash;Specific implementation step is as follows:
S1. the sugarcane juice that 1# crusher 1 squeezes and the sugarcane juice that 2# crusher 2 squeezes are mixed and carries out pre- ash for the first time, lime is added It is 8.0 that cream, which adjusts pH,.
S2., 3# crusher 3 is squeezed to obtained sugarcane juice and carries out second of pre- ash, it is 11 that milk of lime, which is added, and adjusts pH, then will 1# crusher 1 is sent by the juicing of second of pre- ash.
S3. sugarcane juice 4# crusher 4 squeezed is sent into 2# crusher 2.
S4. the sugarcane juice squeezed 5# crusher 5 and 6# crusher 6, which mixes, carries out the pre- ash of third time, and milk of lime adjusting pH is added and is 8.5, then 3# crusher 3 will be sent by the juicing of the pre- ash of third time.
S5. it sieves the sugarcane juice march that step S1 is obtained to obtain mixed juice and enters mixed juice case 7, then by the mixed juice The 4th pre- ash is carried out, it is 10.5 that milk of lime, which is added, and adjusts pH, obtains system refining mixed juice and enters system refining mixing tank 8.
S6. system refining mixed juice is subjected to the 5th pre- ash, system refining mixed juice is first heated to 55 DEG C, stone is then added It is 11 that grey cream, which adjusts pH,;Most stove drying mixed juice is obtained through stove drying averager 9 afterwards.
S7. the stove drying mixed juice is added milk of lime to adjust pH is 7.2, carries out plus ash neutralizes and obtains subsider juice.
Embodiment 2
A kind of alkalinity sulfurous method sugar refining technology first carries out five groups of squeezer squeezings, then carries out stove drying neutralization, and carry out It is segmented pre- ash;Specific implementation step is as follows:
S1. the sugarcane juice that 1# crusher 1 squeezes and the sugarcane juice that 2# crusher 2 squeezes are mixed and carries out pre- ash for the first time, lime is added It is 7.8 that cream, which adjusts pH,.
S2., 3# crusher 3 is squeezed to obtained sugarcane juice and carries out second of pre- ash, it is 10.8 that milk of lime, which is added, and adjusts pH, then 1# crusher 1 will be sent by the juicing of second of pre- ash.
S3. sugarcane juice 4# crusher 4 squeezed is sent into 2# crusher 2.
S4. the sugarcane juice squeezed 5# crusher 5 and 6# crusher 6, which mixes, carries out the pre- ash of third time, and milk of lime adjusting pH is added and is 8.2, then 3# crusher 3 will be sent by the juicing of the pre- ash of third time.
S5. it sieves the sugarcane juice march that step S1 is obtained to obtain mixed juice and enters mixed juice case 7, then by the mixed juice The 4th pre- ash is carried out, it is 10 that milk of lime, which is added, and adjusts pH, obtains system refining mixed juice and enters system refining mixing tank 8.
S6. system refining mixed juice is subjected to the 5th pre- ash, system refining mixed juice is first heated to 50 DEG C, stone is then added It is 11.5 that grey cream, which adjusts pH,;Most stove drying mixed juice is obtained through stove drying averager 9 afterwards.
S7. the stove drying mixed juice is added milk of lime to adjust pH is 7.4, carries out plus ash neutralizes and obtains subsider juice.
Embodiment 3
A kind of alkalinity sulfurous method sugar refining technology first carries out five groups of squeezer squeezings, then carries out stove drying neutralization, and carry out It is segmented pre- ash;Specific implementation step is as follows:
S1. the sugarcane juice that 1# crusher 1 squeezes and the sugarcane juice that 2# crusher 2 squeezes are mixed and carries out pre- ash for the first time, lime is added It is 7.6 that cream, which adjusts pH,.
S2., 3# crusher 3 is squeezed to obtained sugarcane juice and carries out second of pre- ash, it is 10.5 that milk of lime, which is added, and adjusts pH, then 1# crusher 1 will be sent by the juicing of second of pre- ash.
S3. sugarcane juice 4# crusher 4 squeezed is sent into 2# crusher 2.
S4. the sugarcane juice squeezed 5# crusher 5 and 6# crusher 6, which mixes, carries out the pre- ash of third time, and milk of lime adjusting pH is added and is 8.0, then 3# crusher 3 will be sent by the juicing of the pre- ash of third time.
S5. it sieves the sugarcane juice march that step S1 is obtained to obtain mixed juice and enters mixed juice case 7, then by the mixed juice The 4th pre- ash is carried out, it is 9 that milk of lime, which is added, and adjusts pH, obtains system refining mixed juice and enters system refining mixing tank 8.
S6. system refining mixed juice is subjected to the 5th pre- ash, system refining mixed juice is first heated to 52 DEG C, stone is then added It is 10.5 that grey cream, which adjusts pH,;Most stove drying mixed juice is obtained through stove drying averager 9 afterwards.
S7. the stove drying mixed juice is added milk of lime to adjust pH is 7.0, carries out plus ash neutralizes and obtains subsider juice.
Comparative example
Compared with Example 1, it is squeezed by 1#-6# crusher, is only pressed in the sugarcane juice and 2# crusher 2 of the squeezing of 1# crusher 1 Pre- ash is carried out at the sugarcane juice mixing of squeezing, it is 6.8~7.2 that milk of lime, which is added, and adjusts pH.Without pre- ash at other crushers, then plus Heat neutralizes to obtain subsider juice to 65 DEG C of progress stove dryings.
Sugarcane is squeezed according to the method for embodiment 1-3 and comparative example, it is pre- ash and stove drying neutralize to obtain subsider juice, and Subsider juice is tested, sugarcane juice (the sugarcane juice mixing that the sugarcane juice and 2# crusher 2 that 1# crusher 1 squeezes squeeze) is obtained and subsider juice is pure Spend difference etc., it is then concentrated, crystallize, be dried to obtain white granulated sugar, and calculate the white granulated sugar ratio of first-grade products.Data see the table below 1.
The comparison of 1 data result of table
Purity difference (AP) The white granulated sugar ratio of first-grade products (%)
Embodiment 1 4.06 97.65
Embodiment 2 4.04 97.34
Embodiment 3 4.05 97.56
Comparative example 1.90 88.45
From embodiment 1-3 and comparative example, alkaline sulfurous method sugaring work of the invention can be seen that in conjunction with the data of table 1 Skill, the advantages of making full use of carbonatation process technique, make sugarcane juice remain at alkalinity, have using multiple spot is gradual plus grey mode Effect protects sucrose, improves purity, reduces the loss of Sucrose Content, improves the white granulated sugar ratio of first-grade products.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair Bright patent claim.The same changes or modifications change completed under technical concept suggested by all present invention, should all belong to In the covered the scope of the patents of the present invention.

Claims (6)

1. a kind of alkalinity sulfurous method sugar refining technology, which is characterized in that first carry out five groups of squeezer squeezings, then carry out in stove drying With, and carry out being segmented pre- ash;Specific implementation step is as follows:
S1. the sugarcane juice of the sugarcane juice and second group of squeezer squeezing that first group of squeezer are squeezed, which mixes, carries out pre- ash for the first time, adds Entering milk of lime to adjust pH is 7.6~8.0;
S2. sugarcane juice third group squeezer squeezed carries out second of pre- ash, and it is 10.5~11 that milk of lime, which is added, and adjusts pH, Then first group of squeezer will be sent by the juicing of second of pre- ash;
S3. the sugarcane juice by the 4th group of squeezer squeezing is sent into second group of squeezer;
S4. the sugarcane juice of the 5th group of squeezer squeezing is subjected to the pre- ash of third time, it is 8.0~8.5 that milk of lime, which is added, and adjusts pH, then Third group squeezer will be sent by the juicing of the pre- ash of third time;
S5. it sieves the sugarcane juice march that step S1 is obtained to obtain mixed juice, the mixed juice is then subjected to the 4th pre- ash, is added Entering milk of lime to adjust pH is 9~10.5, obtains system refining mixed juice;
S6. system refining mixed juice is subjected to the 5th pre- ash, it is 10.5~11.5 that milk of lime, which is added, and adjusts pH;Then through stove drying Neutralization obtains stove drying mixed juice;
S7. the stove drying mixed juice is added milk of lime to adjust pH is 7.0~7.4, carries out plus ash neutralizes and obtains subsider juice.
2. alkalinity sulfurous method sugar refining technology according to claim 1, which is characterized in that in the step S5, carrying out Before 5th pre- ash, system refining mixed juice is heated to 50~55 DEG C.
3. alkalinity sulfurous method sugar refining technology according to claim 1, which is characterized in that five groups of squeezers are used respectively 1~3 crusher.
4. alkalinity sulfurous method sugar refining technology according to claim 3, which is characterized in that first group of squeezing, second Group squeezing, the squeezing of third group, the 4th group of squeezing use a crusher, and the 5th group of squeezing uses two crushers.
5. alkalinity sulfurous method sugar refining technology according to claim 1, which is characterized in that, will be described in the step S5 Mixed juice carries out the 4th pre- ash, and it is 10 that milk of lime, which is added, and adjusts pH, obtains system refining mixed juice.
6. alkalinity sulfurous method sugar refining technology according to claim 1, which is characterized in that, will be described in the step S6 System refining mixed juice carries out the 5th pre- ash, and it is 11 that milk of lime, which is added, and adjusts pH.
CN201811322346.8A 2018-11-08 2018-11-08 A kind of alkalinity sulfurous method sugar refining technology Pending CN109402299A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114540553A (en) * 2022-03-01 2022-05-27 耿马南华华侨糖业有限公司 Production method of sugarcane sulfur-free white granulated sugar

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068145A (en) * 1991-06-27 1993-01-20 云南省轻工业科学研究所 " low temperature highly basic " improves sulfurous method cane sugar manufacture cleaning technique
WO2001014595A2 (en) * 1999-08-19 2001-03-01 Tate & Lyle, Inc. Sugar cane membrane filtration process
CN1296082A (en) * 2000-10-03 2001-05-23 瞿东平 Sugarcane juice clarifying technology by sulfurous acid-carbonic acid method
CN1317577A (en) * 2001-04-28 2001-10-17 瞿东平 Process for clarifying cane juice by sulforous acid-carbonic acid method
CN106282420A (en) * 2016-08-15 2017-01-04 南宁糖业股份有限公司 Sulfurous method sugaring segmentation pre-ash clarification process
CN107916305A (en) * 2017-10-20 2018-04-17 广西巨桂科技有限公司 A kind of sulfurous method squeezing and clarifying process pH control methods

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068145A (en) * 1991-06-27 1993-01-20 云南省轻工业科学研究所 " low temperature highly basic " improves sulfurous method cane sugar manufacture cleaning technique
WO2001014595A2 (en) * 1999-08-19 2001-03-01 Tate & Lyle, Inc. Sugar cane membrane filtration process
CN1296082A (en) * 2000-10-03 2001-05-23 瞿东平 Sugarcane juice clarifying technology by sulfurous acid-carbonic acid method
CN1317577A (en) * 2001-04-28 2001-10-17 瞿东平 Process for clarifying cane juice by sulforous acid-carbonic acid method
CN106282420A (en) * 2016-08-15 2017-01-04 南宁糖业股份有限公司 Sulfurous method sugaring segmentation pre-ash clarification process
CN107916305A (en) * 2017-10-20 2018-04-17 广西巨桂科技有限公司 A kind of sulfurous method squeezing and clarifying process pH control methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114540553A (en) * 2022-03-01 2022-05-27 耿马南华华侨糖业有限公司 Production method of sugarcane sulfur-free white granulated sugar

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