CN106119430A - A kind of production line of rich polyphenol nigecose - Google Patents

A kind of production line of rich polyphenol nigecose Download PDF

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Publication number
CN106119430A
CN106119430A CN201610664349.4A CN201610664349A CN106119430A CN 106119430 A CN106119430 A CN 106119430A CN 201610664349 A CN201610664349 A CN 201610664349A CN 106119430 A CN106119430 A CN 106119430A
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membrane
nigecose
production line
grades
equipment
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Inventor
史昌蓉
李凯
杭方学
陆海勤
李红
谢彩锋
刘继栋
邓立高
李文
蒙丽丹
曲睿晶
兰梅娟
李�一
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Guangxi University
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Guangxi University
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    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/16Purification of sugar juices by physical means, e.g. osmosis or filtration
    • C13B20/165Purification of sugar juices by physical means, e.g. osmosis or filtration using membranes, e.g. osmosis, ultrafiltration
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00Production of sugar juices
    • C13B10/02Expressing juice from sugar cane or similar material, e.g. sorghum saccharatum
    • 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
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/16Purification of sugar juices by physical means, e.g. osmosis or filtration
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B25/00Evaporators or boiling pans specially adapted for sugar juices; Evaporating or boiling sugar juices
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B30/00Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
    • C13B30/002Evaporating or boiling sugar juice
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B30/00Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
    • C13B30/02Crystallisation; Crystallising apparatus
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B50/00Sugar products, e.g. powdered, lump or liquid sugar; Working-up of sugar
    • C13B50/02Sugar products, e.g. powdered, lump or liquid sugar; Working-up of sugar formed by moulding sugar

Abstract

A kind of production line of rich polyphenol nigecose, the press apparatus of this production line, remove impurity filter plant, pre-ash cylinder, pipe heat exchanger and steam heater are sequentially connected with, lime cream storage cylinder is connected to pre-ash cylinder, steam heater outlet is connected to primary ceramic membrane entrance, the concentrated solution outlet of primary ceramic membrane is connected to pre-ash cylinder through full charge equipment, filter press, and the purified liquor outlet of primary ceramic membrane is connected to two grades of NF membrane entrances;Two grades of NF membrane concentrated solution outlets sequentially pass through vacuum evaporation equipment, normal pressure concentrator, crystallization in motion case, mould are connected to nigecose packaging facilities;Two grades of NF membrane purified liquor outlets are connected to white sugar production line.The present invention uses the ceramic membrane filter Caulis Sacchari sinensis juice of two-stage difference membrane aperture size, secondary membrane concentrated juice is used to produce rich polyphenol nigecose, functional components polyphenols in secondary membrane concentrated juice has obtained effective enrichment, relatively conventional production technology improves 4~8 times, improves quality and the nutritive value of nigecose.

Description

A kind of production line of rich polyphenol nigecose
Technical field
The present invention relates to sugar refining technology field, the production line of a kind of rich polyphenol nigecose.
Background technology
Sugar Industry is Guangxi mainstay of the national economy industry, relates to the comprehensive industry of secondary and tertiary industries, near in district The productive life of half population is closely bound up with Sugarcane Industry, the fiscal revenues of Shi Wo district and minority area, border area agriculture The main support that people's employment increases income.In recent years, owing to being affected by international sugar valency, sugar valency constantly dropped.In addition production cost is high, Agriculture as the foundation of the economy is weaker, mechanization degree is low, and the varities of industrial products is single, lack the problems such as the market competitiveness, makes Guangxi Sugar industry has gone to life-and-death crossroad.Having put into effect a series of policy for this Guangxi District government promotes Chinese Sugar Industry to rise transition Level, " overall plan about promoting Chinese Sugar Industry starting new undertaking ", clearly propose " with Caulis Sacchari sinensis multiformity industry as handgrip, to accelerate The development non-sugar product of Caulis Sacchari sinensis, strengthens the industry ability to ward off risks ", conscientiously improve the Chinese Sugar Industry capability of sustainable development and international competition Power.
It is the deeper brown sugar of color in nigecose original idea, owing to color approximates black, thus is referred to as nigecose by Japan and Taiwan, China's Mainland claims brown sugar.Nigecose is not through highly refined, the sucrose of decolouring.In addition to providing heat energy, possibly together with the most Aldehydes matter and multiple essential amino acid, growth in humans grows indispensable malic acid, riboflavin, carotene, nicotinic acid And trace element, such as calcium, potassium, ferrum, magnesium and folic acid and other mineral etc., there is the highest nutritive value, and be conducive to Acid-base balance in human body.
After traditional nigecose production method is mainly sugar cane crushing, heating sugarcane juice is to boiling, and now impurity can be along with bubble Producing and float, skim upper strata scum silica frost, and carry out stepped evaporation concentration, after being concentrated to certain brix, cooling down and stirring stimulates Crystalline substance, forms lamellar sugar or powdered sugar.But tradition nigecose production technology is because clarifying efficiency is relatively low, and causes the impurity of nigecose product Content is higher, is dissolved in the water and occurs turbid phenomenon afterwards;And this is conventionally produced inefficient, it is difficult to realize industry metaplasia Produce.
Polyphenol compound, refers to the general name having the plant component of several phenolic hydroxyl group in molecular structure, including phenol Acid and flavone compound.Polyphenol compound has certain oxidation resistance, has listed Natural antioxidant category in, is excellent Good hydrogen or the donor of electronics, the superoxide anion causing 26S Proteasome Structure and Function to damage to producing peroxidation and hydroxyl are certainly Obvious scavenging action is had by free radicals such as bases.Oxidative damage is to cause many chronic diseases, such as cardiovascular diseases, cancer and aging Major reason.These chronic diseases can be played preventive effect by the anti-oxidation function of polyphenol.Containing a large amount of pigment things in Caulis Sacchari sinensis Matter, these materials belong to polyphenol compound and flavonoids, and the content of polyphenols is compared with many fruit or vegetable Go even farther.Polyphenols extract in Caulis Sacchari sinensis has stronger removing free radical, antioxidant activity, the battalion to the mankind Support, healthy and diseases prevention and treatment are significant.There are some researches show, the polyphenols contained in Caulis Sacchari sinensis, belong to water solublity color Element, for the carbon skeleton of C6-C3-C6, all has plural hydroxyl on phenyl ring simultaneously, common are 3 classes: i.e. anthocyanidin, Xanthin (flavonoid), catechin.Research according to Haier's base Ovshinsky and Clarke measures: the polyphenol compound in Caulis Sacchari sinensis is many Concentrate on the sugarcane taper near growing point to divide.The high molecular polyphenol compound of molecular weight more than 5000 full bar Caulis Sacchari sinensis point Cloth is: sugarcane leaf accounts for 33%, the sugarcane tip (0~11 joint) accounts for 37%, and the sugarcane stem after topping only accounts for 30%, it is seen that though the sugarcane tip is only sugarcane stem Fraction, but Polyphenols thing is then more than sugarcane stem, and Relatively centralized.Caulis Sacchari sinensis in juice-extracting process, these water-soluble polyphenols chemical combination Thing major part enters in Caulis Sacchari sinensis juice.
Therefore, when using band belt leaf Caulis Sacchari sinensis as raw material, for producing nigecose product after squeezing the juice, process uses efficient The peace and quiet sugarcane juice of membrane separation technique, it is possible to the effective quality improving nigecose;Multistage Membranes parallel processing sugarcane juice enrichment polyphenols Produce nigecose technique, it is possible to the effective nutritive value improving nigecose and functional importance.Meet modern people to functional Nutraceutical demand;Also comply with the requirement that development cane products is diversified, high-valued simultaneously, be that developing Sugarcane Industry develops new road The embodiment in footpath.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that the production line of a kind of rich polyphenol nigecose.
To achieve these goals, present invention employs techniques below scheme:
A kind of production line of rich polyphenol nigecose, including press apparatus, remove impurity filter plant, pre-ash cylinder, lime cream storage cylinder, Pipe heat exchanger, steam heater, primary ceramic membrane, two grades of NF membrane, evaporation concentration equipment, normal pressure concentrator, crystallization in motion case, Mould and nigecose packaging facilities;
Described press apparatus, remove impurity filter plant, pre-ash cylinder, pipe heat exchanger and steam heater are sequentially connected with, stone Ash breast storage cylinder is connected to pre-ash cylinder, and steam heater outlet is connected to primary ceramic membrane entrance, the concentrated solution of primary ceramic membrane Exporting and be connected to pre-ash cylinder through full charge equipment, filter press, the purified liquor outlet of primary ceramic membrane is connected to two grades of NF membrane and enters Mouthful;
Two grades of NF membrane concentrated solution outlets sequentially pass through vacuum evaporation equipment, normal pressure concentrator, crystallization in motion case, molding Mould is connected to nigecose packaging facilities;
Two grades of NF membrane purified liquor outlets are connected to white sugar production line;
The aperture of described primary ceramic membrane is 50~200nm, transmembrane pressure 0.25~0.45Mpa, crossflow velocity 4~5m/ S, volume concentration multiple is 8~12;
The molecular cut off of described two grades of NF membrane is 1~5kDa, and transmembrane pressure is 0.6~1.0Mpa, crossflow velocity 4.5 ~5.5m/s, volume concentration multiple is 8~10.
Further, remove impurity filter plant is the combination of the spin vibration sieve of the vibrosieve of 100~200 mesh and 200~300 mesh, Material regulates pH to 7.0~7.5 in lime cream storage cylinder, and the heating-up temperature of pipe heat exchanger is 55~65 DEG C, and steam heats The heating-up temperature of device is 80~90 DEG C, and evaporation concentration equipment is falling film type vacuum vaporation system or atmospheric evaporation system, and normal pressure is dense Contracting equipment is interlayer iron pan.
Further, described white sugar production line includes the white sugar vacuum evaporation equipment being sequentially connected with, boils sugar knot Brilliant equipment, separation equipment, drying plant and white sugar packaging facilities.
Compared with prior art, the beneficial effect that the present invention possesses:
The present invention uses the ceramic membrane filter Caulis Sacchari sinensis juice of two-stage difference membrane aperture size, uses secondary membrane concentrated juice raw Producing rich polyphenol nigecose, the functional components polyphenols in secondary membrane concentrated juice has obtained effective enrichment, relatively conventional life Production. art improves 4~8 times, thus improves quality and the nutritive value of nigecose.The eutrophy nigecose of gained is being dissolved into 12 ° Turbidity after Bx is at below 1NTU, and the product nigecose fragrance of gained is strong, and in sepia, indices all reaches one-level nigecose The national standard requirement of (brown sugar).
Color value of clear juice obtained by two grades of nanofiltration membrane reduces by 40%~60% relative to mixed juice, haze reduction 99.99%, purity improves 1%~3%, and secondary membrane filtered juice can be used for white sugar and produces.
The creativeness of the present invention is mainly reflected in:
(1), after obtaining heating material liquid, use the ceramic membrane of different membrane aperture size to carry out twice filtration, first use large hole The ceramic membrane filter in footpath removes most of non-sugar impurity such as the ash in mixed juice, colloid, little granule sugarcane marrow, then uses smaller hole The membrane filtration one-level clear juice in footpath, the polyphenols etc. in effectively catching one-level film clear juice, obtain the two of polyphenols enrichment Level membrance concentration juice produces for rich polyphenol nigecose, obtains colour, turbidity relatively low simultaneously, and the secondary membrane clear juice that purity is higher can be used for White sugar produces.And in the prior art, the technique not yet occurring syrup is passed through twice filtration treatment.
(2) primary ceramic membrane in aperture 50~200nm, two grades of NF membrane of molecular cut off 1~5kDa, only utilize State the film in aperture to carry out double-filtration and could reduce other influences nigecose as far as possible while ensureing polyphenols enrichment The invalid impurity of quality.
Accompanying drawing explanation
Fig. 1 is the equipment connection diagram of the production line of rich polyphenol nigecose of the present invention.
Detailed description of the invention
Below by embodiment, technical scheme is further elaborated.
Embodiment 1
The production line of a kind of rich polyphenol nigecose, stores including press apparatus 1, remove impurity filter plant 2, pre-ash cylinder 4, lime cream Cylinder 3, pipe heat exchanger 5, steam heater 6,7, two grades of NF membrane 19 of primary ceramic membrane, evaporation concentration equipment 13, normal pressure concentrate Equipment 14, crystallization in motion case 15, mould 16 and nigecose packaging facilities 17;
Described press apparatus 1, remove impurity filter plant 2, pre-ash cylinder 4, pipe heat exchanger 5 and steam heater 6 connect successively Connecing, lime cream storage cylinder 3 is connected to pre-ash cylinder 4, and steam heater 6 outlet is connected to primary ceramic membrane entrance 7, primary ceramic membrane Concentrated solution outlet be connected to pre-ash cylinder through full charge equipment 20, filter press 21, the purified liquor outlet of primary ceramic membrane is connected to Two grades of NF membrane 8 entrances,
Two grades of ceramic membrane 8 concentrated solution outlets sequentially pass through evaporation concentration equipment 13, normal pressure concentrator 14, crystallization in motion case 15, Mould 16 is connected to nigecose nigecose packaging facilities 17,
Two grades of NF membrane 8 purified liquor outlets are connected to white sugar production line;
The aperture of described primary ceramic membrane 7 is 50~200nm, transmembrane pressure 0.25~0.35Mpa, crossflow velocity 4~5m/ S, volume concentration multiple is 8~12;
The aperture 1~5kDa of described two grades of NF membrane 8, transmembrane pressure is 0.6~1.0Mpa, crossflow velocity 4.5~5.5m/ S, volume concentration multiple is 8~10.
Described remove impurity filter plant 2 is the combination of the spin vibration sieve of the vibrosieve of 50~100 mesh and 200~300 mesh, and material exists Regulating pH to 7.0~7.5 in lime cream storage cylinder 4, the heating-up temperature of pipe heat exchanger 5 is 55~65 DEG C, steam heater 6 Heating-up temperature is 80~90 DEG C, and evaporation concentration equipment 13 is falling film type vacuum vaporation system or atmospheric evaporation system, and normal pressure concentrates Equipment 14 is interlayer iron pan.
White sugar vacuum evaporation equipment 9 that described white sugar production line includes being sequentially connected with, cane sugar boiling and crystal equipment 10, Separation equipment 11, drying plant 12 and white sugar packaging facilities 19.
Embodiment 2~4 is to utilize rich polyphenol nigecose production line of the present invention to carry out the example produced, concrete operation step As follows:
Embodiment 2
The production technology of a kind of rich polyphenol nigecose, comprises the steps:
(1) take sugarcane slightly with the Caulis Sacchari sinensis of sugarcane leaf as raw material;
(2) crushing sugar cane obtains mixed juice, utilizes 100 mesh vibrosieves to remove the large granular impurities such as bagasse, then revolves with 200 mesh The sieve that shakes removes little granule foreign, obtains material liquid;
(3) material liquid first adds lime cream regulation pH to 7.5, then is heated to 60 DEG C by pipe heat exchanger, pump to baffle-box, With being steam heated to 85 DEG C, obtain heating material liquid;
(4) carrying out clarification filtration, transmembrane pressure 0.45Mpa, crossflow velocity 4m/s by 50nm primary ceramic membrane, volume is dense Demagnification number is 10, to remove most of non-sugar impurity such as antibacterial in mixed juice, ash, colloid, obtain one-level film clear juice and One-level film-filter concentration liquid, one-level membrance concentration liquid is pumped in material liquid after membrance concentration liquid clarifying treatment system;
(5) one-level film evaporator supplypump is delivered to and in secondary membrane material liquid tank, by two grades of NF membrane that molecular cut off is 1kDa Filtering, transmembrane pressure 1.0Mpa, crossflow velocity 5.5m/s, filter temperature 70 DEG C, volume concentration multiple is 8, secondary membrane effectively catching Polyphenols etc. in one-level clear juice, respectively obtain the secondary membrane concentrated juice rich in polyphenols and colour, turbidity relatively low, The secondary membrane clear juice that purity is higher;
(6) secondary membrane concentrated juice passes through falling film type vacuum vaporation system, is concentrated into 65 ° of BX, with interlayer iron pan at normal pressure shape Stir off under state to sweet cake brix 94~95 ° of BX, sweet cake is moved to crystallization in motion case, pour into after stirring graining and be covered with through strict sterilization The food paper using of sterilization wood mold coupled in, allow its natural cooling molding, after removing paper, be packaged to be rich polyphenol nigecose;
(7) secondary membrane evaporator supplypump delivers to sugar refinery clear juice case for white sugar production.
The quality of the present embodiment gained one-level film clear juice, secondary membrane clear juice and secondary membrane concentrated juice is as shown in table 1, white sugar Quality is as shown in table 2.
The quality of sugarcane juice before and after table 1. film excessively
The indices contrast of table 2. finished product nigecose
Note: total sugar is divided into reducing sugar content+Sucrose
Embodiment 3
The production technology of a kind of rich polyphenol nigecose, comprises the steps:
(1) take sugarcane slightly with the Caulis Sacchari sinensis of sugarcane leaf as raw material;
(2) cane milling obtains mixed juice, utilizes 50 mesh vibrosieves to remove the bulky grain sugarcane marrows etc. such as bagasse, then uses 250 mesh Spin vibration sieve filters, and removes short grained impurity, obtains material liquid;
(2) material liquid first adds lime cream regulation pH to 7.0, then is heated to 55 DEG C by pipe heat exchanger, and pump is to head tank Baffle-box, with being steam heated to 80 DEG C, obtains heating material liquid;
(3) clarification filtration, transmembrane pressure 0.35Mpa, crossflow velocity 4.5m/s, body are carried out by 100nm primary ceramic membrane Long-pending cycles of concentration is 10, to remove the major part impurity such as antibacterial in mixed juice, ash, colloid, obtains one-level film clear juice and Level film-filter concentration liquid, one-level membrance concentration liquid is pumped in material liquid after membrance concentration liquid clarifying treatment system;
(4) one-level film evaporator supplypump is delivered to and in secondary membrane material liquid tank, by two grades of NF membrane that molecular cut off is 5kDa Filtering, transmembrane pressure is 0.6Mpa, crossflow velocity 5m/s, filters temperature 75 DEG C, and volume concentration multiple is 10, effectively catching one-level film The polyphenols etc. of clear juice, the secondary membrane concentrated juice and colour, the turbidity that respectively obtain polyphenols enrichment are relatively low, and purity is relatively High secondary membrane clear juice;
(5) secondary membrane concentrated juice passes through falling film type vacuum vaporation system, is concentrated into 62 ° of BX, with interlayer iron pan at normal pressure shape Stir off under state to sweet cake brix 94~96 ° of BX, sweet cake is moved to crystallization in motion case, pour into be covered with after stirring graining and kill through strict sterilization The food paper using of bacterium wood mold coupled in, allow its natural cooling molding, after removing paper, be packaged to be rich polyphenol nigecose;
(6) secondary membrane evaporator supplypump delivers to sugar refinery clear juice case for white sugar production.
The quality of the present embodiment gained one-level film clear juice, secondary membrane clear juice and secondary membrane concentrated juice is as shown in table 3, nigecose Quality is as shown in table 4.
The quality of sugarcane juice before and after table 3. film excessively
The indices contrast of table 4. finished product nigecose
Note: total sugar is divided into reducing sugar content+Sucrose
Embodiment 4
The production technology of a kind of rich polyphenol nigecose, comprises the steps:
(1) cane milling obtains mixed juice, utilizes 80 mesh vibrosieves to remove the large granular impurities such as bagasse, then uses 300 mesh Spin vibration sieve removes little granule foreign, obtains material liquid;
(2) material liquid first adds lime cream regulation pH to 7.2, then is heated to 65 DEG C by pipe heat exchanger, and pump is to head tank Baffle-box, with being steam heated to 90 DEG C, obtains heating material liquid;
(3) clarification filtration, transmembrane pressure 0.25Mpa, crossflow velocity 5m/s, volume are carried out by 200nm primary ceramic membrane Cycles of concentration is 10, to remove the major part impurity such as antibacterial in mixed juice, ash, colloid, obtains one-level film clear juice and one-level film Filter concentration liquid, one-level membrance concentration liquid is pumped in material liquid after membrance concentration liquid clarifying treatment system;
(4) one-level film evaporator supplypump is delivered to and in secondary membrane material liquid tank, by the secondary membrane of molecular cut off 2kDa, across Mould difference is 0.8Mpa, crossflow velocity 4.5m/s, filters temperature 70 DEG C, and volume concentration multiple is 8, many in effectively catching one-level clear juice Aldehydes matters etc., the secondary membrane concentrated juice and colour, the turbidity that respectively obtain polyphenols enrichment are relatively low, two grades that purity is higher Film clear juice;
(5) secondary membrane concentrated juice passes through falling film type vacuum vaporation system, is concentrated into 60 ° of BX, with interlayer iron pan at normal pressure shape Stir off under state to sweet cake brix 94~96 ° of BX, sweet cake is moved to crystallization in motion case, pour into be covered with after stirring graining and kill through strict sterilization The food paper using of bacterium wood mold coupled in, allow its natural cooling molding, after removing paper, be packaged to be rich polyphenol nigecose;
(6) secondary membrane evaporator supplypump delivers to sugar refinery clear juice case for white sugar production.
The quality of the present embodiment gained one-level film clear juice, secondary membrane clear juice and secondary membrane concentrated juice is as shown in table 5, nigecose Quality is as shown in table 6.
The quality of sugarcane juice before and after table 5. film excessively
The indices contrast of table 6. finished product nigecose
Note: total sugar is divided into reducing sugar content+Sucrose.

Claims (3)

1. a production line for rich polyphenol nigecose, its feature is being, including press apparatus, remove impurity filter plant, pre-ash cylinder, stone Ash breast storage cylinder, pipe heat exchanger, steam heater, primary ceramic membrane, two grades of NF membrane, evaporation concentration equipment, normal pressures concentrate Equipment, crystallization in motion case, mould and nigecose packaging facilities;
Described press apparatus, remove impurity filter plant, pre-ash cylinder, pipe heat exchanger and steam heater are sequentially connected with, lime cream Storage cylinder is connected to pre-ash cylinder, and steam heater outlet is connected to primary ceramic membrane entrance, the concentrated solution outlet of primary ceramic membrane Being connected to pre-ash cylinder through full charge equipment, filter press, the purified liquor outlet of primary ceramic membrane is connected to two grades of NF membrane entrances;
Two grades of NF membrane concentrated solution outlets sequentially pass through vacuum evaporation equipment, normal pressure concentrator, crystallization in motion case, mould It is connected to nigecose packaging facilities;
Two grades of NF membrane purified liquor outlets are connected to white sugar production line;
The aperture of described primary ceramic membrane is 50~200nm, transmembrane pressure 0.25~0.45Mpa, crossflow velocity 4~5m/s, body Long-pending cycles of concentration is 8~12;
The molecular cut off of described two grades of NF membrane is 1~5kDa, and transmembrane pressure is 0.6~1.0Mpa, crossflow velocity 4.5~ 5.5m/s, volume concentration multiple is 8~10.
2. the production line of the richest polyphenol nigecose, its feature is being, remove impurity filter plant is 50~100 mesh Vibrosieve and the combination of spin vibration sieve of 200~300 mesh, material regulates pH to 7.0~7.5, tubular type in lime cream storage cylinder The heating-up temperature of heat exchanger is 55~65 DEG C, and the heating-up temperature of steam heater is 80~90 DEG C, and evaporation concentration equipment is falling liquid film Formula vacuum vaporation system or atmospheric evaporation system, normal pressure concentrator is interlayer iron pan.
3. the production line of the richest polyphenol nigecose, its feature is being, described white sugar production line includes successively The white sugar vacuum evaporation equipment, cane sugar boiling and crystal equipment, separation equipment, drying plant and the white sugar packaging that connect set Standby.
CN201610664349.4A 2016-08-12 2016-08-12 A kind of production line of rich polyphenol nigecose Pending CN106119430A (en)

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CN113462822A (en) * 2021-08-03 2021-10-01 广西大学 Sugar production process based on membrane method clarification poly-generation

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