CN103276021B - Pretreatment method of potato raw materials - Google Patents

Pretreatment method of potato raw materials Download PDF

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Publication number
CN103276021B
CN103276021B CN201310186030.1A CN201310186030A CN103276021B CN 103276021 B CN103276021 B CN 103276021B CN 201310186030 A CN201310186030 A CN 201310186030A CN 103276021 B CN103276021 B CN 103276021B
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potato
liquefying plant
raw
saccharification
glutinous rice
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CN103276021A (en
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张敏华
余英哲
耿中峰
马静
李桂明
李永辉
董秀芹
吕惠生
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Tianjin University
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Tianjin University
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    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00Preparation of compounds containing saccharide radicals
    • C12P19/04Polysaccharides, i.e. compounds containing more than five saccharide radicals attached to each other by glycosidic bonds
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00Preparation of compounds containing saccharide radicals
    • C12P19/02Monosaccharides
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13KSACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00Glucose; Glucose-containing syrups
    • C13K1/06Glucose; Glucose-containing syrups obtained by saccharification of starch or raw materials containing starch
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel

Abstract

The invention relates to a pretreatment method of potato raw materials. The potato raw materials are conveyed to a raw s screening machine to be screened, the remaining on the screen is potato blocks free from impurities such as gravels, the potato blocks are then conveyed to a potato block crusher to be crushed, the screen underflow is potato powder rich in impurities such as the gravels, the potato powder, certain water, and a liquefying enzyme are mixed in a primary liquefying device to be subjected to primary liquefaction so that the starch in the potato powder rich in the impurities such as the gravels is converted to reducing sugars which are soluble in water and include glucose, polysaccharide and the like, the liquefied mash obtained from the primary liquefaction is subjected to solid-liquid separation to remove a lot of solid-phase substances such as the gravels and fibers in the liquefied mash, the clear liquid discharged from a solid-liquid separator is mixed with the potato powder from the potato block crusher to obtain a mixture, the mixture is subjected to secondary liquefaction in a secondary liquefaction device, and then the liquefied mash meeting downstream production requirements can be obtained. According to the pretreatment method disclosed by the invention, the problems that a production device cannot stably and efficiently run for a long period, and energy consumption and material consumption are high as the raw materials contain a lot of impurities are thoroughly solved when the potato raw materials are applied to production of biological products.

Description

Potato raw material pretreatment process
Technical field
The present invention relates to a kind of potato raw material pretreatment process.Impurity in potato raw material mainly comprises the impurity such as sandstone and fiber, the long period that excessive impurity effect is the production equipment of the bio-based goods such as raw material production ethanol, butanols and organic acid with potato class, stable, Effec-tive Function.The potato raw material screening liquefaction removal of impurities pretreatment process that the present invention proposes, the impurity such as the sandstone in potato raw material and fiber are made to realize effective elimination, prepare the liquefied fermented glutinous rice (abbreviation liquefied fermented glutinous rice) of high solids content (admittedly comprising soluble solids and insolubility solid containing thing), solve technology and the engineering roadblock of puzzlement potato raw material industrial utilization.
Background technology
In recent years, the technology trends of biological field in world wide, and the guiding of China's energy and industry restructuring policy, become the common recognition of people based on " non-grain " development bio-based goods and the principle of chemical.As the basic material that the basic material glucose of bio-based industry development and saccharan are many medicines and food, feed, fuel.Along with the day by day exhaustion of global mineral wealth, the reproducible glucose of raw material is as the basic raw material of 21st century Green Chemistry industry, to become the ideal substitute of basic petrochemical materials, acquisition glucose and saccharan are the keys reducing the product costs such as fermentation at low cost in a large number.
Glucose and saccharan raw materials for production mainly comprise starch material, saccharine material, lignocellulosic material etc.Potato raw material belongs to starchy material, mainly comprise cassava and Ipomoea batatas, potato raw material prepares by raw materials pretreatment, liquefaction, saccharifying the liquefied fermented glutinous rice or converted mash that contain glucose and saccharan, glucose, saccharan and downstream bio-based goods and chemical can be produced as raw material, potato raw material can realize heavy industrialization at present, and economically feasiblely prepare one of non-grain raw material of platform chemicals glucose and saccharan.
The fresh potato raw material of results will be processed into potato block usually, stores, use as potato raw material after soil dries under open-air condition with dry potato chips form.Potato raw material mainly refers to dry potato chips, dry potato chips are dried technique, and the impact of packing material needed for raw material shipping storage, in potato raw material usually containing have an appointment 1% ~ 10% sandstone and the impurity such as fiber, if do not take effective removal of impurities measure, also containing the impurity such as a large amount of sandstones and fiber in the material powder slurry that potato raw material can be caused to prepare.Too much foreign material in raw material can cause blocking and the abrasion of equipment and pipeline in prepared using production process, and production equipment can not long-period stable operation, regularly must clear up equipment and pipeline, denude serious will frequently changing; Cause the production processes such as fermentation to control difficulty simultaneously, if adopt this raw material to prepare liquefied fermented glutinous rice, solid content is lower, such as produce alcohol, realize alcohol thick mash fermentation difficulty, the alcohol by volume concentration (being commonly called as wine degree) of ripe wine with dregs is less than 10% usually, if realize thick mash fermentation operation, the alcohol by volume concentration (being commonly called as wine degree) of ripe wine with dregs is greater than 12% usually, the ripe wine with dregs preparation of low wine degree and following process process energy and material consumption high, unstable product quality, urgently finds effective means, realizes effective pre-treatment of the sand fallout removal of impurities of potato class (also claiming potato to do) raw material.
Summary of the invention
Potato raw material also claims potato dry raw material, potato raw material usually major part is block, fine powder simultaneously also containing mass ratio about 5% ~ 30%, in raw material, the impurity such as sandstone impurity of mass ratio more than 90% is mainly present in raw material fine powder, potato block surface also attaches the impurity such as a small amount of sandstone, affect the Commercial cultivation of potato raw material, production equipment can not long period, stable, Effec-tive Function.Traditional potato raw material utilizes technique, in order to remove the impurity such as sandstone in potato raw material, usually add water after potato raw material all being pulverized and prepare powder slurry, removing of the impurity such as sandstone is carried out by carrying out the operation such as sedimentation or rotary filter press to powder slurry, in order to improve removal efficiency, need to reduce powder slurry viscosity, general solids level concentration of being starched by powder is prepared lower, usually total mass ratio is admittedly less than 20%, although total mass ratio admittedly of preparation powder slurry is less than 20%, but the viscosity of powder slurry is still larger, the decreasing ratio of the impurity such as sandstone contained by causing powder to starch is low, usually 20% is less than, in the impurity such as the sandstone removed, the usual quality of starch is greater than 20% than content, in raw materials pretreatment process, starch loss is large, powder slurry concentration is low, spice water consumption is large, potato raw material is caused to utilize cost higher.
A kind of potato raw material screening liquefaction pretreatment process that the present invention relates to, see accompanying drawing: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema (figure-1); Potato raw material screening liquefaction pretreatment process schema (figure-2); Potato raw material screening, liquefaction and saccharification pretreatment process schema (figure-3), be described below:
Special instruction: when the concentration of relevant material related in patent specification and the data of content do not have a special explanation, be mass ratio.
First selection by winnowing is carried out to potato raw material, remove the stone in potato raw material, the bulk foreign material such as iron block, potato raw material after selection by winnowing delivers to material screening machine, if there is no stone in raw material, the bulk foreign material such as iron block, potato raw material directly can be delivered to material screening machine without selection by winnowing operation, by carrying out screening operation to potato raw material, the sandstone impurity simultaneously making potato block surface attach erodes away, potato block is separated with potato powder, screen overflow is the potato block after sand fallout, the impurity such as the sandstone of in raw material more than 90% are enriched in screen underflow potato powder, potato block after sand fallout is sent into potato block pulverizer and is pulverized, potato powder after pulverizing is sent into potato dressing sieve extension set and is removed the impurity such as fiber, screen underflow potato powder delivers to secondary liquefying plant, if potato block pulverizer obtains potato powder contain the impurity such as less fiber, potato powder after pulverizing can directly deliver to secondary liquefying plant.
The potato powder of the impurity such as material screening machine screen underflow enrichment sandstone, potato powder amount is 5% ~ 30% of total inventory, with spice water, α-amylase mixes, wherein the mass ratio of the spice water yield and total potato raw material amount is less than or equal to 7/3, will to meet in the liquefied fermented glutinous rice that secondary liquefying plant obtains total simultaneously is admittedly greater than 30% containing substrate concentration for spice quality, total potato raw material amount will deduct the impurity levels such as sandstone, total thing that admittedly contains in liquefied fermented glutinous rice comprises soluble solids and insolubility solid, α-amylase is restriction endonuclease, Main Function is that long chained starch is divided into short chain dextrin, be convenient to the utilization of saccharifying enzyme, powder slurry carries out an Operation for liquefaction at a certain temperature, the Starch Conversion in the potato powder of the impurity such as enrichment sandstone is made to be the saccharans such as water-soluble dextrin, and obtain liquefied fermented glutinous rice material, the liquefied fermented glutinous rice of a liquefying plant discharge delivers to solid-liquid separator again, operated by solid-liquid separation, the solid formations such as a large amount of sandstone contained in liquefied fermented glutinous rice and fiber are all removed.The powder of this process preparation is starched because potato powder amount is 5% ~ 30% of total inventory, spice aqueous phase is to more, powder slurry total solid content concentration for desanding is less than 10% usually, powder slurry viscosity is less than the powder slurry of total solid content concentration 20%, and pass through Operation for liquefaction, liquefied fermented glutinous rice viscosity reduces further, operated by solid-liquor separation, the impurity such as sandstone contained in liquefied fermented glutinous rice all remove, and in the solid formations such as the sandstone removed water and starch content lower, in the impurity such as the sandstone removed, starch and the usual content of fermentable sugars are greater than 3%, secondary liquefied fermented glutinous rice concentration controls the add-on of a liquefying plant spice water.
The liquefied fermented glutinous rice clear liquid that solid-liquid separator obtains is delivered to secondary liquefying plant with the potato powder removing the impurity such as fiber from potato dressing sieve extension set and is carried out secondary mixing, a certain amount of α-amylase can be added, carry out secondary Operation for liquefaction at a certain temperature, the Starch Conversion in the potato powder added is made to be the saccharans such as water-soluble dextrin, obtain the liquefied fermented glutinous rice meeting downstream production requirement, to liquefy in the liquefied fermented glutinous rice that obtains total admittedly realizes being greater than 30% containing substrate concentration for secondary, thoroughly solve and adopt potato raw material to produce biological products, because impurity is more, production equipment can not long period, stable, Effec-tive Function, water consumption is large, the difficult problem that energy and material consumption is high.
In order to reduce the viscosity of liquefied fermented glutinous rice further, improve solid-liquid separation efficiency, reduce the loss of starch and fermentable sugars etc. in raw material, the liquefied fermented glutinous rice that also an Operation for liquefaction can be obtained delivers to saccharification apparatus after adding saccharifying enzyme, make the starch in liquefied fermented glutinous rice, the saccharans such as dextrin are converted into glucose etc., the ratio of viscosities liquefied fermented glutinous rice of the converted mash that saccharification apparatus is sent is low, the solid-liquor separation operating effect of converted mash is good, reduce and deliver to starch residual in waste treatment system solid formation, the amount of the reducing sugars such as dextrin, improve the starch recoveries of potato raw material, the saccharifying enzyme added in mashing operation is excision enzyme, its Main Function is by the starch in liquefied fermented glutinous rice, the saccharans such as dextrin are converted into glucose.The converted mash that mashing operation obtains sends into the solid formation impurity such as solid-liquid separator sand fallout stone again, the converted mash clear liquid obtained mixes with the potato powder from potato dressing sieve extension set again, α-amylase can be added by secondary simultaneously, carry out secondary Operation for liquefaction at a certain temperature, make the Starch Conversion in the potato powder added be the saccharans such as water-soluble dextrin, and obtain meeting the liquefied fermented glutinous rice of downstream production requirement or the mixture of converted mash and liquefied fermented glutinous rice.
To liquefy in the mixture of the liquefied fermented glutinous rice that obtains or converted mash and liquefied fermented glutinous rice total is admittedly greater than 30% containing substrate concentration for secondary, always admittedly comprises soluble solids and insolubility solid containing thing.
The liquefied fermented glutinous rice that liquefying plant obtains or the converted mash that saccharification apparatus obtains are by solid-liquid separator process, the solid formation containing sandstone removed adopts multi-level water to rinse, reclaim starch remaining in solid formation and sugar etc., the solid formation multi-level water containing sandstone removed rinses rear remaining starch and sugared content is less than 3%, deliver to waste treatment system, rinse recycle-water and return a liquefying plant recycling as spice water, if the solid formation containing sandstone that solid-liquid separator process is discharged is less, and starch and reducing sugar etc. are also less, the solid formation containing sandstone removed can without multi-level water flushing operation, directly deliver to waste treatment system.
A liquefying plant and secondary liquefying plant operating restraint are 30 ~ 140 DEG C, in order to improve potato raw material liquefaction efficiency, when the Operation for liquefaction temperature of a liquefying plant or secondary liquefying plant is less than 100 DEG C, the Operation for liquefaction process need of a liquefying plant and secondary liquefying plant adds α-amylase; In addition, in order to reduce production cost, make full use of the strengthening effect that high-temperature water liquefies for potato raw material, when the Operation for liquefaction temperature of a liquefying plant or secondary liquefying plant is more than or equal to 100 DEG C, the Operation for liquefaction process of a liquefying plant and secondary liquefying plant does not add α-amylase.
Concrete technical scheme and the feature of a kind of potato raw material pretreatment process that the present invention relates to are as follows:
Described a kind of potato raw material pretreatment process (see accompanying drawing-2: potato raw material screening liquefaction pretreatment process schema), potato raw material is sent into material screening machine and is sieved by raw material; Screen underflow is the potato powder being enriched sandstone impurity, raw material screen underflow is delivered to a liquefying plant and is mixed with spice water and carry out Operation for liquefaction, the liquefied fermented glutinous rice of a liquefying plant discharge delivers to solid-liquid separator, removed by solid formation containing sandstone impurity in liquefied fermented glutinous rice, secondary liquefying plant sent into by liquefied fermented glutinous rice clear liquid; Raw material screen overflow is sent into potato block pulverizer and is pulverized, the potato powder that potato block pulverizer is discharged sends into secondary liquefying plant, the liquefied fermented glutinous rice clear liquid that potato powder after pulverizing and solid-liquid separator obtain mixes and carries out secondary Operation for liquefaction in secondary liquefying plant, and liquefied fermented glutinous rice discharged by secondary liquefying plant.
Described a kind of potato raw material pretreatment process (see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema), the potato raw material of the bulk foreign material containing stone, iron block, deliver to raw material winnowing machine, potato raw material is removed by the bulk foreign material of winnowing machine by the stone in raw material, iron block, and the potato raw material after selection by winnowing delivers to material screening machine again.
Described a kind of potato raw material pretreatment process, the mass ratio of the spice water yield and total potato raw material amount is less than or equal to 7/3, and total that quality will meet in the liquefied fermented glutinous rice or liquefied fermented glutinous rice and converted mash mixture that secondary liquefying plant obtains that add of spice water is greater than 30% containing the mass concentration of thing admittedly simultaneously, total potato raw material amount will be deducted containing the amount of sandstone impurity in raw material, and liquefied fermented glutinous rice or liquefied fermented glutinous rice comprise soluble solids and insolubility solid with the total thing that admittedly contains in converted mash mixture.
Described a kind of potato raw material pretreatment process (see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema), the raw material screen overflow potato block that material screening machine is discharged is delivered to potato block pulverizer and is pulverized, the potato powder that potato block pulverizer is discharged is sent into potato dressing sieve extension set and is removed the impurity screen overflows such as fiber, and the liquefied fermented glutinous rice clear liquid that potato dressing sieve extension set potato powder screen underflow obtains with solid-liquid separator again mixes and carries out secondary Operation for liquefaction in secondary liquefying plant.
Described a kind of potato raw material pretreatment process, a liquefying plant and secondary liquefying plant operating temperature range are 30 ~ 140 DEG C, and when the Operation for liquefaction temperature of a liquefying plant or secondary liquefying plant is less than 100 DEG C, Operation for liquefaction process adds α-amylase.
Described a kind of potato raw material pretreatment process, liquefied pot, liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation is furnished with in a liquefying plant, when the set(ting)value of the temperature of charge in a liquefying plant lower than the service temperature of a liquefying plant, the heating installation opening a liquefying plant makes the service temperature of a liquefying plant reach set(ting)value, when the set(ting)value of the temperature of charge in a liquefying plant higher than the service temperature of a liquefying plant, open the cooling apparatus of a liquefying plant, the service temperature reducing a liquefying plant reaches set(ting)value.
Described a kind of potato raw material pretreatment process, liquefied pot, liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation is furnished with in secondary liquefying plant, when the set(ting)value of the temperature of charge in secondary liquefying plant lower than the service temperature of secondary liquefying plant, the heating installation opening secondary liquefying plant makes the service temperature of secondary liquefying plant reach set(ting)value, when the set(ting)value of the temperature of charge in secondary liquefying plant higher than the service temperature of secondary liquefying plant, open the cooling apparatus of secondary liquefying plant, the service temperature reducing secondary liquefying plant reaches set(ting)value.
Described a kind of potato raw material pretreatment process (see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema), the solid formation containing sandstone impurity that solid-liquid separator is discharged delivers to recovery of starch device, by the multistage fermentable sugars such as reclaiming starch, glucose and the saccharan remained in solid formation that rinses of water, the main solid formation containing sandstone and fiber after flushing delivers to waste treatment system, and the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water.
Described a kind of potato raw material pretreatment process is (see accompanying drawing-3: potato raw material sieves, liquefaction and saccharification pretreatment process schema), the liquefied fermented glutinous rice of a liquefying plant discharge is delivered to saccharification apparatus and is carried out mashing operation, add saccharifying enzyme simultaneously, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed by the solid formation containing sandstone impurity, the converted mash clear liquid that solid-liquid separator obtains mixes with potato dressing sieve extension set potato powder screen underflow and carries out secondary Operation for liquefaction in secondary liquefying plant, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove sandstone and fiber impurity.
Described a kind of potato raw material pretreatment process, saccharifying tank is furnished with in saccharification apparatus, converted mash cooling apparatus or converted mash heating installation, saccharification apparatus operating temperature range is 25 ~ 80 DEG C, when the set(ting)value of the temperature of charge in saccharification apparatus lower than the service temperature of saccharification apparatus, the service temperature of opening the converted mash heating installation raising saccharification apparatus of saccharification apparatus reaches set(ting)value, when the set(ting)value of the temperature of charge in saccharification apparatus higher than the service temperature of saccharification apparatus, open the converted mash cooling apparatus of saccharification apparatus, the service temperature reducing saccharification apparatus reaches set(ting)value.
Accompanying drawing explanation
Figure-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema;
Figure-2: potato raw material screening liquefaction pretreatment process schema;
Figure-3: potato raw material screening, liquefaction and saccharification pretreatment process schema.
Embodiment
As accompanying drawing illustrates (figure-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema; Figure-2: potato raw material screening liquefaction pretreatment process schema; Figure-3: potato raw material screening, liquefaction and saccharification pretreatment process schema) shown in, potato raw material pretreatment process is described as follows:
Potato raw material delivers to raw material winnowing machine, and removed by the bulk foreign material such as the stone in raw material, iron block by potato raw material winnowing machine, the bulk foreign material removed deliver to waste treatment system, and the potato raw material after selection by winnowing delivers to material screening machine again.
If potato raw material is not containing the bulk such as stone, iron block foreign material, potato raw material can directly deliver to material screening machine, and potato raw material is mixed with sandstone and the impurity such as fiber of 1% ~ 10% usually, and more than 90% of the impurity such as the sandstone in potato raw material are less than 2mm.The form of potato raw material is block and powdery.Material screening machine can be the screening plant of the form such as vibratory screening apparatus or trommel screen, by the screening process to potato raw material, material screening machine screen underflow is the potato powder being rich in the impurity such as sandstone, screen underflow potato powder accounts for 2% ~ 30% of potato raw material total amount usually, in screen underflow, the content of the impurity such as sandstone is more than 90% of the total impurities such as contained sandstone in potato raw material, the foreign matter contents such as screen underflow potato powder amount and sandstone thereof and raw material contain the amount of the impurity such as sandstone, the aperture of screening plant, screening shockproofness and storeroom abrasive resistance relevant, in raw material, contained long fibrous impurities major part is present in screen overflow potato block raw material, raw material screen overflow potato block delivers to potato block pulverizer.
The potato powder that potato block pulverizer is discharged is sent into potato dressing sieve extension set and is removed the impurity such as fiber, the impurity screen overflows such as fiber remove delivers to waste treatment system, screen underflow potato powder delivers to secondary liquefying plant again, if the impurity such as institute's fibre-bearing does not affect subsequent production processing in the potato powder that potato block pulverizer is discharged, potato powder also can directly deliver to secondary liquefying plant without potato dressing sieve extension set.
The raw material screen underflow that material screening machine is discharged delivers to a liquefying plant and the mixing of spice water after collecting, add α-amylase etc. simultaneously and carry out Operation for liquefaction, wherein the mass ratio of the spice water yield and total potato raw material amount is less than or equal to 7/3, will to meet in the liquefied fermented glutinous rice that secondary liquefying plant obtains total simultaneously is admittedly greater than 30% containing amount concentration for the spice water yield, total potato raw material amount will deduct the impurity levels such as sandstone, total thing that admittedly contains in liquefied fermented glutinous rice comprises soluble solids and insolubility solid, powder slurry total solid content concentration is less than 10%, spice water add-on is wash-down water and the spice water summation directly delivering to a liquefying plant.
By the Operation for liquefaction in a liquefying plant, most of Starch Conversion in potato powder in screen underflow is water-soluble glucose and saccharan etc., prepare liquefied fermented glutinous rice, liquefied fermented glutinous rice prepared by liquefying plant can directly be delivered to solid-liquid separator and remove the solid phase impurity such as sandstone, also can deliver to the further saccharification of saccharification apparatus fall glutinous after deliver to solid-liquid separator again and remove the solid phase impurity such as sandstone.
Liquefied pot, liquefied fermented glutinous rice cooling or liquefied fermented glutinous rice heating installation etc. are furnished with in a liquefying plant, a liquefying plant is according to concrete pretreatment technology option and installment liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation, the service temperature of material in a liquefying plant is controlled by liquefied fermented glutinous rice cooling apparatus or heating installation, the scope of a liquefying plant service temperature is 30 ~ 140 DEG C, when liquefaction temperature is less than 100 DEG C, Operation for liquefaction process adds α-amylase.
Come from liquefied fermented glutinous rice that liquefying plant is rich in the solid formation such as sandstone and fiber to deliver to solid-liquid separator and remove the main solid formation containing impurity such as sandstones, the main solid formation containing impurity such as sandstones delivers to recovery of starch device, by the multistage fermentable sugars such as reclaiming starch, glucose and the saccharan remained in solid formation that rinses of water, the main solid formation containing the impurity such as sandstone and fiber after flushing delivers to waste treatment system again, and the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water.
The liquefied fermented glutinous rice clear liquid that solid-liquid separator obtains mixes with the potato powder removing the impurity such as fiber from potato block pulverizer or potato dressing sieve extension set, and adds a certain amount of α-amylase, carries out secondary Operation for liquefaction at a certain temperature, obtains the liquefied fermented glutinous rice meeting downstream production requirement.
Liquefied pot is furnished with in secondary liquefying plant, liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation etc., secondary liquefying plant is according to concrete pretreatment technology option and installment liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation, the service temperature of material in secondary liquefying plant is controlled by liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation, to liquefy in the mixture of the liquefied fermented glutinous rice that obtains or converted mash and liquefied fermented glutinous rice total is admittedly greater than 30% containing substrate concentration for secondary, secondary liquefying plant operating temperature range is 30 ~ 140 DEG C, when liquefaction temperature is less than 100 DEG C, in order to improve liquefaction effect, Operation for liquefaction process need adds α-amylase.
In addition, in order to reduce the viscosity of solid-liquid separator charging further, improve the efficiency of solid-liquid separator removing impurities, reduce the loss of the reducing sugars such as sugar and starch, the liquefied fermented glutinous rice of a liquefying plant discharge directly can not deliver to solid-liquid separator, but first deliver to saccharification apparatus, saccharification apparatus adds saccharifying enzyme simultaneously, make the further saccharification of liquefied fermented glutinous rice that No. a time liquefying plant is discharged, reduce viscosity, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed solid formation, solid formation containing impurity such as sandstones can directly be disposed to waste treatment system, also recovery of starch device can be delivered to, the starch remaining after multi-level water is rinsed in recovery of starch device containing the solid formation of sandstone and sugared content are less than 3%.
Saccharifying tank, converted mash cooling apparatus or converted mash heating installation etc. are furnished with in saccharification apparatus, saccharification apparatus is according to concrete pretreatment technology option and installment converted mash cooling apparatus or converted mash heating installation, controlled the service temperature of material in saccharification apparatus by converted mash cooling apparatus or heating installation, mashing operation temperature range is 25 ~ 80 DEG C.
Secondary liquefying plant sent into by the converted mash clear liquid obtained from pulverizer or potato dressing sieve extension set screen underflow and solid-liquid separator, in secondary liquefying plant, secondary Operation for liquefaction is carried out in mixing, adding of α-amylase is controlled according to Operation for liquefaction temperature, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove the impurity such as sandstone and fiber, meet downstream production requirement.
Embodiment 1:
Do as raw material with cassava, the starch content of the dry raw material of cassava is 69%, adopts technique see accompanying drawing-2: potato raw material screening liquefaction pretreatment process schema, achieves the effective elimination of the impurity such as sandstone and fiber in the dry raw material of cassava.
Material screening machine directly delivered to by the dry raw material of cassava, the dry raw material of cassava delivering to material screening machine is mixed with the impurity such as sandstone and fiber that mass ratio is 1%, material screening machine is vibratory screening apparatus, material screening machine screen underflow is the potato powder being rich in the impurity such as sandstone, screen underflow potato powder accounts for 10% of potato raw material total mass ratio, in screen underflow, the content of the impurity such as sandstone is more than 95% of the impurity total mass ratio such as contained sandstone in raw material, screen overflow potato block delivers to potato block pulverizer, and the potato powder that potato block pulverizer is discharged delivers to secondary liquefying plant.
Material screening machine screen underflow Tapioca Starch delivers to a liquefying plant and the mixing of spice water after collecting, spice water temp is normal temperature, the mass concentration of powder slurry total solid content is far smaller than 10%, and controlling by liquefying plant spice water add-on liquefied fermented glutinous rice that secondary liquefying plant sends is always 32% containing the mass concentration of thing admittedly.By the Operation for liquefaction in a liquefying plant, Starch Conversion in potato powder is water-soluble glucose and saccharan etc., prepare liquefied fermented glutinous rice, liquefied fermented glutinous rice prepared by liquefying plant directly delivers to solid-liquid separator, and in a liquefying plant, Operation for liquefaction temperature is 140 DEG C.
Because spice water is normal temperature, during the service temperature 140 DEG C of the powder slurry feeding temperature making to enter a liquefying plant lower than material in a liquefying plant, the heating installation of a unlatching liquefying plant is needed to make the service temperature stable maintenance of material in a liquefying plant at 140 DEG C.
The liquefied fermented glutinous rice of a liquefying plant discharge is delivered to solid-liquid separator and is removed the main solid formation containing impurity such as sandstones, the main solid formation containing impurity such as sandstones directly delivers to waste treatment system, and what remove is less than 3% containing quality such as the starch in the solid formation of sandstone and sugar than content.
The liquefied fermented glutinous rice clear liquid that solid-liquid separator obtains mixes with the potato powder from potato block pulverizer and carries out secondary Operation for liquefaction, obtain the liquefied fermented glutinous rice meeting downstream production requirement, the service temperature set(ting)value of secondary liquefying plant is 100 DEG C, and the mass ratio of the total solid content of the liquefied fermented glutinous rice that secondary liquefying plant is sent reaches 32%.
The dry raw material of cassava operates the impurity such as sandstone and fiber in the liquefied fermented glutinous rice obtained decreasing ratio by screening, liquefaction etc. is 95% of mass ratio, makes to utilize the production equipment energy long period of this liquefied fermented glutinous rice production derived product, stable, Effec-tive Function.
Embodiment 2:
Do as raw material with cassava, the starch content of the dry raw material of cassava is 68%, adopts technique see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema, realize the effective elimination of sandstone and fiber impurity in the dry raw material of cassava.
Cassava materials delivers to raw material winnowing machine, the wind regime of winnowing machine is air, removed by the bulk foreign material such as the stone in raw material, iron block by cassava materials winnowing machine, the bulk foreign material removed deliver to waste treatment system, and the cassava materials after selection by winnowing delivers to material screening machine again.
The cassava materials delivering to material screening machine is mixed with the impurity such as sandstone and fiber that mass ratio is 10%, cassava materials sieve apparatus is the screening plant of vibratory screening apparatus form, material screening machine screen underflow accounts for 30% of cassava materials total mass ratio, in screen underflow, the content of the impurity such as sandstone is more than 95% of the impurity total mass ratio such as contained sandstone in raw material, and screen overflow potato block delivers to potato block pulverizer.
Because the impurity such as institute's fibre-bearing in the potato powder that potato block pulverizer is discharged are less, not affecting following process utilizes, and potato powder directly delivers to secondary liquefying plant.
Material screening machine screen underflow delivers to a liquefying plant and the mixing of spice water after collecting, the mass concentration of powder slurry total solid content is less than 10%, add α-amylase etc. simultaneously and carry out Operation for liquefaction, one time Operation for liquefaction temperature is 90 DEG C, it is 30% that the liquefied fermented glutinous rice sent by total spice water add-on control secondary liquefying plant always contains amount concentration admittedly, by the Operation for liquefaction in a liquefying plant, Starch Conversion in potato powder in screen underflow is water-soluble glucose and saccharan etc., and liquefied fermented glutinous rice prepared by liquefying plant directly can deliver to solid-liquid separator.
Because spice water is normal temperature, during the service temperature 90 DEG C of the powder slurry feeding temperature making to enter a liquefying plant lower than material in a liquefying plant, the heating installation of a unlatching liquefying plant is needed to make the service temperature stable maintenance of material in a liquefying plant at 90 DEG C.
The liquefied fermented glutinous rice of a liquefying plant discharge does not directly deliver to solid-liquid separator, but first deliver to saccharification apparatus, add saccharifying enzyme simultaneously, mashing operation temperature is 58 DEG C, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed solid formation, solid formation containing impurity such as sandstones also delivers to recovery of starch device, the starch reclaiming and remain in solid formation is rinsed by water is multistage, the fermentable sugars such as glucose and saccharan, the solid formation containing the impurity such as sandstone and fiber after flushing delivers to waste treatment system, the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water, the service temperature of saccharification apparatus is controlled by converted mash cooling apparatus.
Due to the liquefied fermented glutinous rice temperature of charge 90 DEG C of a liquefying plant discharge, higher than the service temperature 58 DEG C of material in saccharification apparatus, need the converted mash cooling apparatus opening saccharification apparatus, make the service temperature stable maintenance of material in saccharification apparatus at 58 DEG C.
Secondary liquefying plant sent into again by the converted mash clear liquid that potato dressing sieve extension set screen underflow and solid-liquid separator obtain, in secondary liquefying plant, secondary Operation for liquefaction is carried out in mixing, add α-amylase simultaneously, the service temperature of secondary liquefying plant is 80 DEG C, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove the impurity such as sandstone and fiber, the always solid quality of the converted mash that secondary liquefying plant is sent and liquefied fermented glutinous rice mixture reaches 30% than concentration.
Charging due to secondary liquefying plant is the mixture of converted mash clear liquid and potato powder, feeding temperature is lower than the service temperature of secondary liquefying plant, need the heating installation opening secondary liquefying plant, make the service temperature stable maintenance of material in secondary liquefying plant at 80 DEG C.
The dry raw material of cassava operates the impurity such as sandstone and fiber in the converted mash and liquefied fermented glutinous rice mixture obtained decreasing ratio by screening, liquefaction etc. is 95% of mass ratio, and the quality that the solid formation multi-level water containing sandstone removed rinses the rear reducing sugar such as remaining starch and sugar is less than 2% than content.
Embodiment 3:
Do as raw material with cassava, the quality of the starch of the dry raw material of cassava is 68% than content, adopt technique see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema, realize the effective elimination of the impurity such as sandstone and fiber in the dry raw material of cassava.
Cassava materials delivers to raw material winnowing machine, the wind regime of winnowing machine is air, removed by the bulk foreign material such as the stone in raw material, iron block by cassava materials winnowing machine, the bulk foreign material removed deliver to waste treatment system, and the cassava materials after selection by winnowing delivers to material screening machine again.
The cassava materials delivering to material screening machine is mixed with the impurity such as sandstone and fiber that mass ratio is 5%, cassava materials sieve apparatus is the screening plant of trommel screen form, material screening machine screen underflow accounts for 20% of cassava materials total mass ratio, in screen underflow, the content of the impurity such as sandstone is more than 92% of the impurity total mass ratio such as contained sandstone in raw material, and screen overflow potato block delivers to potato block pulverizer.
The potato powder that potato block pulverizer is discharged first is sent into potato dressing sieve extension set and is removed the impurity such as fiber, and the impurity removals such as screen overflow fiber deliver to waste treatment system, and screen underflow potato powder delivers to secondary liquefying plant again.
Material screening machine screen underflow delivers to a liquefying plant and the mixing of spice water after collecting, add α-amylase etc. simultaneously and carry out Operation for liquefaction, it is 30% that the liquefied fermented glutinous rice sent by total spice water add-on control secondary liquefying plant always contains amount concentration admittedly, spice water temp is 40 DEG C, liquefied fermented glutinous rice prepared by liquefying plant directly can deliver to solid-liquid separator, and one time Operation for liquefaction temperature is 30 DEG C.
Because spice water temp is 40 DEG C, when making the powder slurry service temperature 30 DEG C of feeding temperature higher than material in a liquefying plant of a liquefying plant, the cooling apparatus of a unlatching liquefying plant is needed to make the service temperature stable maintenance of material in a liquefying plant at 30 DEG C.
The liquefied fermented glutinous rice of a liquefying plant discharge does not directly deliver to solid-liquid separator, but first deliver to saccharification apparatus, add saccharifying enzyme simultaneously, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed solid formation, solid formation containing impurity such as sandstones also delivers to recovery of starch device, the starch reclaiming and remain in solid formation is rinsed by water is multistage, the fermentable sugars such as glucose and saccharan, the solid formation containing the impurity such as sandstone and fiber after flushing delivers to waste treatment system, the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water, the service temperature of saccharification apparatus is controlled by converted mash cooling apparatus, mashing operation temperature is 80 DEG C.
Charging due to saccharification apparatus is the liquefied fermented glutinous rice of a liquefying plant discharge, liquefied fermented glutinous rice temperature of charge is 30 DEG C, lower than the service temperature 80 DEG C of material in saccharification apparatus, need the converted mash heating installation opening saccharification apparatus, make the service temperature stable maintenance of saccharification apparatus at 80 DEG C.
Secondary liquefying plant sent into again by the converted mash clear liquid that potato dressing sieve extension set screen underflow and solid-liquid separator obtain, in secondary liquefying plant, secondary Operation for liquefaction is carried out in mixing, add α-amylase simultaneously, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove the impurity such as sandstone and fiber, the service temperature of secondary liquefying plant is 90 DEG C, and the mass concentration of the total solid content of the converted mash that secondary liquefying plant is sent and liquefied fermented glutinous rice mixture can reach 30%.
Charging due to secondary liquefying plant is the mixture of converted mash clear liquid and potato powder, feeding temperature is lower than the service temperature of material in secondary liquefying plant, need the heating installation opening secondary liquefying plant, make the service temperature stable maintenance of secondary liquefying plant at 90 DEG C.
The dry raw material of cassava operates the impurity removal percentage such as sandstone and fiber in the converted mash and liquefied fermented glutinous rice mixture obtained by screening, liquefaction etc. be 92% of mass ratio, the quality that the solid formation multi-level water containing sandstone removed rinses rear remaining starch and sugar is less than 2% than content.
Embodiment 4:
Do as raw material with cassava, the mass ratio of the starch content of the dry raw material of cassava is 68%, adopt technique see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema, realize the effective elimination of the impurity such as sandstone and fiber in the dry raw material of cassava.
Cassava materials delivers to raw material winnowing machine, and removed by the bulk foreign material such as the stone in raw material, iron block by cassava materials winnowing machine, the bulk foreign material removed deliver to waste treatment system, and the cassava materials after selection by winnowing delivers to material screening machine again.
The cassava materials delivering to material screening machine is mixed with the impurity such as sandstone and fiber that mass ratio is 3%, cassava materials sieve apparatus is the screening plant of trommel screen form, material screening machine screen underflow accounts for 15% of cassava materials total mass ratio, in screen underflow, the content of the impurity such as sandstone is more than 91% of the impurity total mass ratio such as contained sandstone in raw material, and screen overflow potato block delivers to potato block pulverizer.
The potato powder that potato block pulverizer is discharged first is sent into potato dressing sieve extension set and is removed the impurity such as fiber, and the impurity removals such as screen overflow fiber deliver to waste treatment system, and screen underflow potato powder delivers to secondary liquefying plant again.
Material screening machine screen underflow delivers to a liquefying plant after collecting and Operation for liquefaction is carried out in the mixing of spice water, powder slurry total solid content mass concentration is less than 10%, it is 33% reckoning that total spice water add-on always contains amount concentration admittedly by the liquefied fermented glutinous rice that control secondary liquefying plant is sent, by the Operation for liquefaction in a liquefying plant, Starch Conversion in potato powder in screen underflow is water-soluble glucose and saccharan etc., liquefied fermented glutinous rice prepared by liquefying plant directly can deliver to solid-liquid separator, and one time Operation for liquefaction temperature is 100 DEG C.
Because spice water is normal temperature, during the service temperature 100 DEG C of the powder slurry feeding temperature making to enter a liquefying plant lower than material in a liquefying plant, the heating installation of a unlatching liquefying plant is needed to make the service temperature stable maintenance of a liquefying plant at 100 DEG C.
The liquefied fermented glutinous rice of a liquefying plant discharge directly delivers to solid-liquid separator, solid formation containing impurity such as sandstones also delivers to recovery of starch device, by the multistage fermentable sugars such as reclaiming starch, glucose and the saccharan remained in solid formation that rinses of water, the solid formation containing the impurity such as sandstone and fiber after flushing delivers to waste treatment system, and the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water.
Secondary liquefying plant sent into by the liquefied fermented glutinous rice clear liquid that potato dressing sieve extension set screen underflow and solid-liquid separator obtain, in secondary liquefying plant, secondary Operation for liquefaction is carried out in mixing, add α-amylase simultaneously, obtain the liquefied fermented glutinous rice removing the impurity such as sandstone and fiber, the service temperature of secondary liquefying plant is 30 DEG C, and the total solid content mass ratio of the converted mash that secondary liquefying plant is sent and liquefied fermented glutinous rice mixture can reach 33%.
Due to the mixture that the charging of secondary liquefying plant is liquefied fermented glutinous rice clear liquid and potato powder, temperature of charge is higher than the service temperature of material in secondary liquefying plant, need the cooling apparatus opening secondary liquefying plant, make the service temperature stable maintenance of secondary liquefying plant at 30 DEG C.
The dry raw material of cassava operates the impurity removal percentage such as sandstone and fiber in the liquefied fermented glutinous rice material obtained by screening, liquefaction etc. be 91% of mass ratio, and the mass ratio that the solid formation multi-level water containing sandstone removed rinses rear remaining starch and sugared content is less than 1.5%.
Embodiment 5:
Take dried sweet potato as raw material, the starch content of dried sweet potato raw material is mass ratio 64%, adopts technique see accompanying drawing-1: potato raw material screening, liquefaction, saccharification and water washing pretreatment method schema, realize the effective elimination of the impurity such as sandstone and fiber in dried sweet potato raw material.
Raw material winnowing machine delivered to by dried sweet potato raw material (also claiming potato dry raw material), by sweet potato material winnowing machine, the bulk foreign material such as the stone in raw material, iron block are removed, the bulk foreign material removed deliver to waste treatment system, and the sweet potato material after selection by winnowing delivers to material screening machine again.
The sweet potato material delivering to material screening machine is mixed with the impurity such as sandstone and fiber that mass ratio is 5%, sweet potato material sieve apparatus is the screening plant of the forms such as trommel screen, material screening machine screen underflow accounts for 10% of sweet potato material total mass ratio, in screen underflow, the content of the impurity such as sandstone is more than 95% of the impurity total mass ratio such as contained sandstone in raw material, and screen overflow potato block delivers to potato block pulverizer.
The potato powder that potato block pulverizer is discharged first is sent into potato dressing sieve extension set and is removed the impurity such as fiber, and the impurity removals such as screen overflow fiber deliver to waste treatment system, and screen underflow potato powder delivers to secondary liquefying plant again.
Material screening machine screen underflow delivers to a liquefying plant and the mixing of spice water after collecting, powder slurry total solid content mass concentration is less than 10%, add α-amylase etc. simultaneously and carry out Operation for liquefaction, it is mass ratio 33% that the liquefied fermented glutinous rice sent by total spice water add-on control secondary liquefying plant always contains substrate concentration admittedly, by the Operation for liquefaction in a liquefying plant, Starch Conversion in potato powder in screen underflow is water-soluble glucose and saccharan etc., and one time Operation for liquefaction temperature is 95 DEG C.
Because spice water is normal temperature, during the service temperature 95 DEG C of the powder slurry feeding temperature making to enter a liquefying plant lower than material in a liquefying plant, the heating installation of a unlatching liquefying plant is needed to make the service temperature stable maintenance of a liquefying plant at 95 DEG C.
The liquefied fermented glutinous rice of a liquefying plant discharge delivers to saccharification apparatus, add saccharifying enzyme simultaneously, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed solid formation, solid formation containing impurity such as sandstones also delivers to recovery of starch device, the starch reclaiming and remain in solid formation is rinsed by water is multistage, the fermentable sugars such as glucose and saccharan, the solid formation containing the impurity such as sandstone and fiber after flushing delivers to waste treatment system, the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water, the service temperature of saccharification apparatus is controlled by converted mash cooling apparatus, mashing operation temperature is 58 DEG C.
Charging due to saccharification apparatus is the liquefied fermented glutinous rice of a liquefying plant discharge, liquefied fermented glutinous rice temperature of charge is 95 DEG C, higher than the service temperature 58 DEG C of material in saccharification apparatus, need the converted mash cooling apparatus opening saccharification apparatus, make the service temperature stable maintenance of saccharification apparatus at 58 DEG C.
Secondary liquefying plant sent into by the converted mash clear liquid that potato dressing sieve extension set screen underflow and solid-liquid separator obtain, in secondary liquefying plant, secondary Operation for liquefaction is carried out in mixing, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove the impurity such as sandstone and fiber, the service temperature of secondary liquefying plant is 100 DEG C, and the total solid content of the converted mash that secondary liquefying plant is sent and liquefied fermented glutinous rice mixture can reach mass ratio 33%.
Due to the mixture that the charging of secondary liquefying plant is converted mash clear liquid and potato powder, temperature of charge is lower than the service temperature of material in secondary liquefying plant, need the heating installation opening secondary liquefying plant, make the service temperature stable maintenance of secondary liquefying plant at 100 DEG C.
Dried sweet potato raw material operates the impurity such as sandstone and fiber in the converted mash and liquefied fermented glutinous rice mixture obtained decreasing ratio by screening, liquefaction etc. is 95% of mass ratio, the solid formation multi-level water containing sandstone removed rinses rear remaining starch and sugared content is less than mass ratio 1%.
Embodiment 6:
Do as raw material with cassava, the starch content of raw material is mass ratio 67%, adopts technique see accompanying drawing-3: potato raw material screening, liquefaction and saccharification process flow figure, realize the effective elimination of the impurity such as sandstone and fiber in cassava materials.
Material screening machine delivered to by the dry raw material of cassava, the cassava materials delivering to material screening machine is mixed with the impurity such as sandstone and fiber that mass ratio is 6%, cassava materials sieve apparatus is the screening plant of the forms such as trommel screen, material screening machine screen underflow accounts for 12% of cassava materials total mass ratio, in screen underflow, the content of the impurity such as sandstone is more than 95% of the impurity total mass ratio such as contained sandstone in raw material, screen overflow potato block delivers to potato block pulverizer, and the potato powder that potato block pulverizer is discharged delivers to secondary liquefying plant.
Material screening machine screen underflow delivers to a liquefying plant and the mixing of spice water after collecting, powder slurry total solid content mass concentration is less than 10%, add α-amylase etc. simultaneously and carry out Operation for liquefaction, it is mass ratio 33% that the liquefied fermented glutinous rice sent by total spice water add-on control secondary liquefying plant always contains substrate concentration admittedly, by the Operation for liquefaction in a liquefying plant, Starch Conversion in potato powder in screen underflow is water-soluble glucose and saccharan etc., and one time Operation for liquefaction temperature is 85 DEG C.
Because spice water is normal temperature, during the service temperature 85 DEG C of the powder slurry feeding temperature making to enter a liquefying plant lower than material in a liquefying plant, the heating installation of a unlatching liquefying plant is needed to make the service temperature stable maintenance of a liquefying plant at 85 DEG C.
The liquefied fermented glutinous rice of a liquefying plant discharge delivers to saccharification apparatus, add saccharifying enzyme simultaneously, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed solid formation, and the solid formation containing impurity such as sandstones delivers to waste treatment system, and mashing operation desired temperature is 56 DEG C.
Charging due to saccharification apparatus is the liquefied fermented glutinous rice of a liquefying plant discharge, liquefied fermented glutinous rice temperature of charge is 85 DEG C, higher than the service temperature 56 DEG C of material in saccharification apparatus, need the converted mash cooling apparatus opening saccharification apparatus, make the service temperature stable maintenance of saccharification apparatus at 56 DEG C.
Secondary liquefying plant sent into by the converted mash clear liquid that potato dressing sieve extension set screen underflow potato powder and solid-liquid separator obtain, in secondary liquefying plant, secondary Operation for liquefaction is carried out in mixing, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove the impurity such as sandstone and fiber, the service temperature of secondary liquefying plant is 100 DEG C, and the total solid content of the converted mash that secondary liquefying plant is sent and liquefied fermented glutinous rice mixture can reach mass ratio 33%.
Due to the mixture that the charging of secondary liquefying plant is converted mash clear liquid and potato powder, temperature of charge is lower than the service temperature of material in secondary liquefying plant, need the heating installation opening secondary liquefying plant, make the service temperature stable maintenance of secondary liquefying plant at 100 DEG C.
The dry raw material of cassava operates the impurity such as sandstone and fiber in the converted mash and liquefied fermented glutinous rice mixture obtained decreasing ratio by screening, liquefaction, saccharification etc. is 96% of mass ratio, and what remove is less than mass ratio 1.2% containing the starch in the solid formation of sandstone and sugared content.
Open and the method that proposes of the present invention and technology of preparing, those skilled in the art are by using for reference present disclosure, and the technical scheme that the links such as appropriate change raw material, processing parameter, structure design realize is all in protection scope of the present invention.

Claims (7)

1. a potato raw material pretreatment process, is characterized in that potato raw material is sent into material screening machine and sieved by raw material; The screen underflow of material screening machine is the potato powder being enriched sandstone impurity, raw material screen underflow is delivered to a liquefying plant and is mixed with spice water and carry out Operation for liquefaction, the liquefied fermented glutinous rice of a liquefying plant discharge is delivered to saccharification apparatus and is carried out mashing operation, add saccharifying enzyme, the converted mash that saccharification apparatus is discharged is delivered to solid-liquid separator again and is removed by the solid formation containing sandstone impurity simultaneously; Material screening machine screen overflow is sent into potato block pulverizer and is pulverized, the converted mash clear liquid that solid-liquid separator obtains with pulverize after potato powder mix in secondary liquefying plant and carry out secondary Operation for liquefaction, obtain the liquefied fermented glutinous rice and the converted mash mixture that remove sandstone and fiber impurity.
2. a kind of potato raw material pretreatment process as claimed in claim 1, it is characterized in that the potato raw material of the bulk foreign material containing stone, iron block, deliver to raw material winnowing machine, potato raw material is removed by the bulk foreign material of winnowing machine by the stone in raw material, iron block, and the potato raw material after selection by winnowing delivers to material screening machine again.
3. a kind of potato raw material pretreatment process as claimed in claim 1, it is characterized in that the mass ratio of the spice water yield and total potato raw material amount is less than or equal to 7/3, and total that quality will meet in the liquefied fermented glutinous rice and converted mash mixture that secondary liquefying plant obtains that add of spice water is greater than 30% containing the mass concentration of thing admittedly simultaneously, total potato raw material amount will be deducted containing the amount of sandstone impurity in raw material, and liquefied fermented glutinous rice comprises soluble solids and insolubility solid with the total thing that admittedly contains in converted mash mixture.
4. a kind of potato raw material pretreatment process as claimed in claim 1, it is characterized in that a liquefying plant and secondary liquefying plant operating temperature range are 30 ~ 140 DEG C, when the Operation for liquefaction temperature of a liquefying plant or secondary liquefying plant is less than 100 DEG C, Operation for liquefaction process adds α-amylase.
5. a kind of potato raw material pretreatment process as claimed in claim 1, it is characterized in that being furnished with liquefied pot in a liquefying plant, liquefied fermented glutinous rice cooling apparatus or liquefied fermented glutinous rice heating installation, when the set(ting)value of the temperature of charge in a liquefying plant lower than the service temperature of a liquefying plant, the heating installation opening a liquefying plant makes the service temperature of a liquefying plant reach set(ting)value, when the set(ting)value of the temperature of charge in a liquefying plant higher than the service temperature of a liquefying plant, open the cooling apparatus of a liquefying plant, the service temperature reducing a liquefying plant reaches set(ting)value.
6. a kind of potato raw material pretreatment process as claimed in claim 1, it is characterized in that the solid formation containing sandstone impurity that solid-liquid separator is discharged delivers to recovery of starch device, the starch, glucose and the saccharan that reclaim and remain in solid formation is rinsed by water is multistage, the main solid formation containing sandstone and fiber after flushing delivers to waste treatment system, and the flushing recycle-water that recovery of starch device is discharged sends into a liquefying plant as spice water.
7. a kind of potato raw material pretreatment process as claimed in claim 1, it is characterized in that being furnished with saccharifying tank in saccharification apparatus, converted mash cooling apparatus or converted mash heating installation, saccharification apparatus operating temperature range is 25 ~ 80 DEG C, when the set(ting)value of the temperature of charge in saccharification apparatus lower than the service temperature of saccharification apparatus, the service temperature of opening the converted mash heating installation raising saccharification apparatus of saccharification apparatus reaches set(ting)value, when the set(ting)value of the temperature of charge in saccharification apparatus higher than the service temperature of saccharification apparatus, open the converted mash cooling apparatus of saccharification apparatus, the service temperature reducing saccharification apparatus reaches set(ting)value.
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