CN108425262A - Stalk cellulose alcohol fuel pretreatment unit and processing method - Google Patents
Stalk cellulose alcohol fuel pretreatment unit and processing method Download PDFInfo
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- CN108425262A CN108425262A CN201810201530.0A CN201810201530A CN108425262A CN 108425262 A CN108425262 A CN 108425262A CN 201810201530 A CN201810201530 A CN 201810201530A CN 108425262 A CN108425262 A CN 108425262A
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- 229920002678 cellulose Polymers 0.000 title claims abstract description 44
- 239000001913 cellulose Substances 0.000 title claims abstract description 44
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 239000000446 fuel Substances 0.000 title claims abstract description 31
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 105
- 238000009835 boiling Methods 0.000 claims abstract description 49
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007906 compression Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims description 43
- 208000005189 Embolism Diseases 0.000 claims description 26
- 240000008042 Zea mays Species 0.000 claims description 10
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 10
- 230000029087 digestion Effects 0.000 claims description 8
- 239000000706 filtrate Substances 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000010025 steaming Methods 0.000 claims description 8
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 4
- 238000010411 cooking Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 235000005822 corn Nutrition 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000005422 blasting Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 239000007787 solid Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract 1
- 235000019441 ethanol Nutrition 0.000 description 24
- 229920002488 Hemicellulose Polymers 0.000 description 11
- 229920005610 lignin Polymers 0.000 description 11
- 238000004880 explosion Methods 0.000 description 10
- 239000010902 straw Substances 0.000 description 8
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 6
- 235000009973 maize Nutrition 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- -1 Galactolipin Chemical compound 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 2
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 229940088598 enzyme Drugs 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 150000002402 hexoses Chemical class 0.000 description 2
- 150000002972 pentoses Chemical class 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 108010059892 Cellulase Proteins 0.000 description 1
- WQZGKKKJIJFFOK-QTVWNMPRSA-N D-mannopyranose Chemical compound OC[C@H]1OC(O)[C@@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-QTVWNMPRSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical group CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229920001503 Glucan Polymers 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920001410 Microfiber Polymers 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- DYUQAZSOFZSPHD-UHFFFAOYSA-N Phenylpropyl alcohol Natural products CCC(O)C1=CC=CC=C1 DYUQAZSOFZSPHD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000025938 carbohydrate utilization Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 125000001547 cellobiose group Chemical group 0.000 description 1
- 229940106157 cellulase Drugs 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 229930182478 glucoside Natural products 0.000 description 1
- 150000008131 glucosides Chemical class 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000012492 regenerant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/36—Explosive disintegration by sudden pressure reduction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
Stalk cellulose alcohol fuel pretreatment unit and processing method.Existing liquid high-temperature water technology can only be handled material compared with low solid content (20%), and high flow rate needs a large amount of water, the quite high energy consumption of pretreatment and subsequent processing is resulted in, production efficiency is relatively low, and steam blasting procedure can have adverse effect subsequent biological treatment.The present invention forms：Scroll feeder, the scroll feeder include external cylinder（3）, the external cylinder right side is equipped with boiling pipe（16）, compression helical axis is provided in the outer barrel body（7）, one end of the described compression helical axis and helicoidal gear（1）It is connected by bearing, the other end of the compression helical axis is located at the annular plugs cylinder of the external cylinder（9）It is interior.The present invention is used for stalk cellulose alcohol fuel pretreatment unit and processing method.
Description
Technical field：
The present invention relates to a kind of stalk cellulose alcohol fuel pretreatment unit and processing methods, belong to the life of stalk cellulose ethyl alcohol
Production method.
Background technology：
China is large agricultural country, is one of the country that stalk resource is the abundantest in the world.It counts according to investigations, national straw in 2010
Stalk theoretical resources amount is 8.4 hundred million t, and collectable stock number is about 700,000,000 t.But due to lacking effective processing mode, there are about
The stalk of 2.47 hundred million t is discarded or is directly burned, and environment is not only polluted, even more to the significant wastage of resource.Stalk conduct
A kind of good biomass energy, alternative part fossil energy, using stalk be raw material cellulose alcohol fuel be solve
Crop straw burning is allowed to substitute a kind of most effective approach of fossil energy.
Maize straw is mainly made of plant cell wall, and it is cellulose, hemicellulose, lignin that cell wall forms substantially,
Cellulose and hemicellulose are wrapped up layer by layer by lignin, and cellulose is one kind by 1000~10000 β 2D2 glucopyranoses
For monomer with the straight-chain polysaccharide of 21,42 glucosides key connections of β, multiple molecules are arranged in parallel at Filamentous insoluble micro fiber, basic
It is cellobiose to form unit, is polymer most abundant on the earth.And hemicellulose be mainly xylose and a small amount of arabinose,
Galactolipin, mannose composition, and lignin is the macromolecule aromatic series constituted as base unit using phenylpropyl alcohol alkane and its derivative
Object is closed, barrier action is played to hydrocellulose.Up to the present, do not find also that second can be produced using single aggressiveness of lignin
The microorganism of alcohol.Hemicellulose is C5The polymer of sugar, is easier to be hydrolyzed to pentose, cellulose is C6The polymer of sugar, more difficult water
Solution is hexose, and lignin can be used for burning, aerogenesis and generation power, the fuel that can also be converted into high added value add
Add agent.It is that production cellulose fuel ethanol must be by the crystallization of cellulose, hemicellulose, lignin in stalk using stalk as raw material
Body structure, which is broken, could be directed to cellulose, hemicellulose carries out subsequent enzyme hydrolysis operation, stalk cellulose fuel ethanol industrial
Development there is an urgent need to a kind of energy-efficient pre-processing devices.
Mainly by liquid high-temperature water technology and steam explosion, liquid is high for stalk cellulose alcohol fuel pretreatment at present
Warm water technology refers to being placed in the hot water of high pressure conditions and (preventing water from being evaporated when more than 100 DEG C by pressurization) material, temperature
It is 200 DEG C~230 DEG C, handles material 2min~15min, so that the 40%~60% of material is dissolved, 4%~22% fiber can be removed
Element, 35%~60% lignin and all hemicelluloses.Corn stalk powder is broken to the sieve by 1/4 inch bore, is adjusted
The slurry for being 16% for solid content heats in fluidized sand-bath, maintains reactor in certain pressure.It is reacted at 190 DEG C
15min best results, later under the conditions of 15FPU/g glucans, 90% cellulose is hydrolyzed to glucose.The method can only be
Material is handled compared with low solid content (20%), and high flow rate needs a large amount of water, results in pretreatment and subsequent processing
Quite high energy consumption, production efficiency are relatively low.
Steam blasting procedure refer under the pressure of 0.169MPa~4.183MPa, with steam by material be heated to 200 DEG C~
240 DEG C, 30s~20min is maintained, so that high pressure steam is penetrated into the gap in material, hydrolysis of hemicellulose, while lignin and softens
And Partial digestion.Then it depressurizes suddenly, gas phase media sprays moment rapid expansion, while the high temperature liquid water in material in material
Rapid bumping forms flash distillation, causes the explosion of cellulose crystals and fibre bundle, material is made to be dissociated into single fiber finer from intercellular layer
Born of the same parents make lignin and cellulose detach.The acetic acid generated in processing procedure and other acid can also promote the hydrolysis of hemicellulose.
The equipment of steam blasting procedure includes steam generator, constant pressure reactor, receiver and condenser, and reactor tank body is with heat preservation
Layer to make temperature keep constant.Maize straw is put into reactor.Maize straw is heated using steam, is heated
Reactor bottom valve is opened afterwards, so that reactor pressure is dropped to atmospheric pressure rapidly, solid and product liquid are collected into
Forestry in Beijing can be used in China by entering condenser at the top of collector in the cyclone separator of collector bottom, gaseous product
The interval steam steam explosion device of university professor Lai Wenheng research carries out explosion treatment, the jade through this blaster explosion to maize straw
Rice stalk, cellulose hydrolysis conversion is more than 70%, and this technology effect on environment is slight, is contained only in steam explosion exhaust gas few
Measure recyclable furfural.Dilute sulfuric acid or carbon dioxide are added during steam explosion can effectively facilitate enzyme hydrolysis, reduce mortifier
It is formed, hemicellulose removal amount is made to increase.After maize straw steam explosion, cellulose hardly loses, lignin loss 14.
6%, enzymolysis yield is up to 70. 0%.Nanjing Forestry University establishes maize straw interval steam explosion pretreatment, cellulase water
Solution and pentose and hexose synchronous fermentation technology produce the pilot-plant of cellulose ethanol.It is 71. 3% to hydrolyze yield, restores sugar utilization
It is respectively 87. 17% and 0. 43% with alcohol getting rate.The advantages of steam blasting procedure, is wanted relative to traditional mechanical crushing method
Material is set to reach same size, steam blasting procedure can save 70% energy consumption, and be that one kind is pollution-free, be not required to regenerant
The technology of matter, but exist simultaneously and destroy and had not to subsequent biological treatment by some substances of sugar and lignin degradation generation
Profit influences.
Invention content：
The shortcomings that present invention aim to address existing liquid high-temperature water technology and steam explosions provides and a kind of mutually tying the two
It closes, digesting technoloy parameter has controllability, it is ensured that product quality meets continuous, uniform, quantitative stalk cellulose alcohol fuel
Pretreatment unit and processing method.
Above-mentioned purpose is realized by following technical scheme：
A kind of stalk cellulose alcohol fuel pretreatment unit, composition include：Scroll feeder, the scroll feeder packet
External cylinder is included, boiling pipe is installed on the right side of the external cylinder, compression helical axis, institute are provided in the outer barrel body
The one end for the compression helical axis stated is connect with helicoidal gear by bearing, and the other end of the compression helical axis is located at institute
In the annular plugs cylinder for the external cylinder stated.
The external cylinder includes feeding cylinder, is bolted with compression conically shaped on the right side of the feeding cylinder, institute
The right side for the compression conically shaped stated is bolted with the annular plugs cylinder, the annular plugs cylinder right side and embolism
Transitional cylinder is bolted, and is bolted with embolism forming tube in cylinder on the right side of the embolism transitional cylinder.
The stalk cellulose alcohol fuel pretreatment unit, the boiling pipe top are provided with hot water inlet and Gao
Steam inlet, the right end of the boiling pipe is pressed to be separately installed with normally closed check (non-return) valve and embolism auxiliary loosening device, the boiling
The lower part of pipe is the outlet of material plug.
The stalk cellulose alcohol fuel pretreatment unit, lower part has at the compression conically shaped end compression
The upper and lower part of filtrate discharge mouth, the embolism transitional cylinder is respectively provided with cooling water inlet.
A kind of processing method of stalk cellulose alcohol fuel pretreatment unit, this method comprises the following steps：
Step 1：The feed inlet that corn stalk raw material rouses meter by pin enters, and is discharged by discharge port after metering；
Step 2：Raw material through metering is directly entered precommpression screw conveyor by chute connection；
Step 3：Pass through the raw material of precommpression screw conveyor, bulk density 95-100kg/m3, entered by feed(raw material)inlet,
It is compressed step by step by transportation section, compression section, optical axis section and embolism transitional cylinder successively, when scroll feeder works, filtrate is constantly
Discharge, material plug mass dryness fraction 48-50% are subsequently entered in loose cylinder and are entered boiling pipe into horizontal high voltage steaming after punishment in advance plug loosening device is loose
Steam cooker；
Step 4：Illustrate that material plug density is less than setting density when the electric current of scroll feeder driving motor is less than the numerical value of setting
When for prevent high steam regurgitate occur normally closed type check (non-return) valve open auxiliary material plug generate, when the electricity of scroll feeder driving motor
Stream is increased to fixed number value, check (non-return) valve pushed home, i.e., the bulk density 600-650kg/m that material plug does not reach requirement3, check (non-return) valve
The outlet closing auxiliary material plug of material plug is given birth to through reaching 600-800kg/m of material plug bulk density3Normally closed type check valve afterwards
Original position is retracted, stalk material plug is fallen from feeding plug tube expects that plug loosening device is loose, and raw material subsequently enters boiling pipe boiling；
Step 5：Enter digestion process with steam contact start when material enters boiling pipe, material is continuously into steaming
Pipe is boiled, 190-210 DEG C of boiling temperature, 1.2-1.5 Mpa of cooking pressure, 10-30min of digestion time, drive sprocket is by subtracting
Fast machine is rotated with the speed set, and slowly pushes material to material outlet, assists loosening device to break up by embolism, raw material enters
Separator tube；
Step 6：The operating pressure of separator tube is 1.2-1.3Mpa, and operating temperature is about 190 DEG C, the suitable material of separator tube storage
Material after the boiling of position, ensures the constant of follow-up auger stripper discharging quantity, screw unloading is entered by the material of separator tube
In device；
Step 7：Auger stripper is spurted the discharging that frequency carries out high concentration material, auger stripper work by blow-off valve setting
Pressure is 1.2-1.3Mpa, and operating temperature is about 190 DEG C, and it is discrete that material subsequently enters jetting storehouse release；
Step 8：By 1.2-1.3Mpa volume-expanding pressure-reducings to moment close to 0.1Mpa or so when jetting storehouse spurts, material edge is spurted
The top of the warehouse separation chamber inner cylinder tangentially enters, and discrete material generates cellulose.
The processing method of the stalk cellulose alcohol fuel pretreatment unit, the detailed process of the step four
For：It will produce when raw material supply amount is less than feeding capacity and regurgitated because material plug is not close, it is excessive in feeding serew abrasion,
Material plug is not close, can equally cause to regurgitate, and normally closed check (non-return) valve is connected with the hydraulic cylinder equipped with solenoid valve, when normal operation, valve
In cylinder body side, when the electric current of scroll feeder driving motor is less than original numerical value, i.e., the tightness that material plug does not reach requirement,
At this moment valve opening is pushed piston forward by solenoid valve, and check (non-return) valve seals the outlet of material plug, and the steam in boiling pipe will not produce
Life is regurgitated, and when the electric current of scroll feeder driving motor is increased to fixed number value, at this moment solenoid valve opens another valve immediately,
Piston pushed home, normally closed reverse stop valve are detached from the outlet of feeding plug tube, and material plug starts to fall from feeding plug tube, and feed system starts extensive
Multiple normal operation, loose immediately after material plug leaves feeding plug tube, raw material subsequently enters boiling pipe.
The processing method of the stalk cellulose alcohol fuel pretreatment unit, raw material is compressing in the step three
The bulk density of section is bulk density 285-300 kg/m3, raw material is 570-600 kg/m in the bulk density of optical axis section3, raw material
Bulk density in transitional cylinder is 600-650 kg/m3。
Advantageous effect：
1. the present invention is a kind of stalk cellulose alcohol fuel pretreatment unit and processing method, by subtracting for screw pitch spatial volume
It is few, so that raw material is gradually compressed, the raw material being compressed by forms material plug in end coils, as raw material is by screw propulsion, material plug
It is formed continuously, at the same time, the material plug of front is pushed into boiling pipe, reaches and the raw material under normal pressure was continuously both promoted boiling pipe,
Energy materials plug ensures the leakproofness of pressure continuous steamer feed inlet again, is squeezed into material plug, forms sealing gland, sealing gland pressure is
Then 1.2-1.3Mpa is passed through 1.3mpa steam in boiling pipe and realizes pressure boiling, produces qualified product.
Flow of the present invention is succinctly smooth, and equipment is concentrated, and convenient for manipulation, characteristics of compact layout, occupation area of equipment is few, digesting technoloy
Parameter has controllability, it is ensured that product quality.
The pin drum meter of the present invention is assemblied in shell, drives pin drum is continuous to turn under the reverse transmission of a pair of of gear
Dynamic, raw material comes out after pin rouses volume metering from discharge port, under feed inlet to achieve the purpose that metering.
Precommpression screw conveyor is arranged in the present invention, and material loose after metering is rearranged group in raw material progradation
It closes, reduces in discharge port section screw pitch ratio, loading precommpression, material volume weight is promoted, to improve follow-up scroll feeder
Yield.
Scroll feeder is arranged in the present invention, is divided into three sections of transportation section, compression section and optical axis section in the structure of feeding serew, defeated
Section is sent to play metering and feeding, its design determines that the ability of charging, compression section play conveying, compressed material and taken off
Water, the effect for forming material plug and increasing material plug density, the effect of optical axis section is to improve the density of material plug core, to reduce boiling pipe
Steam and material are regurgitated, the back rake angle of helical-blade working face be material in helical compression section by a radial direction appropriate
Power increases the frictional force of material and inner surface of outer cover, prevents material from skidding, and when scroll feeder works, filtrate is constantly discharged,
Discharge port raw material mass dryness fraction 48-50%.
Normally closed non-return valve is arranged in the present invention, for preventing medium in boiling vessel from regurgitating, is less than feeding capacity in raw material supply amount
When will produce and regurgitated because material plug is not close, excessive in feeding serew abrasion, material plug is not close, can equally cause anti-
Spray.Once the normal operation that will hinder boiling vessel is regurgitated in generation.
Boiling pipe is arranged in the present invention, belongs to pressure vessel, 190-210 DEG C of boiling temperature, cooking pressure 1.2-1.5
Mpa, 10-30min of digestion time have entered steaming when material enters boiling pipe from normally closed check (non-return) valve with steam contact start
Process is boiled, material is continuously into boiling pipe.The speed rotation that drive sprocket is set by speed reducer, and material is slowly pushed away
To material outlet, helical axis plays good stirring action simultaneously equipped with not isometrical variable pitch impeller in progradation, makes object
Material can uniformly advance, and reduce raw ripe irregular phenomenon.
The pressure 1.2-1.3MPa of the present invention, about 193 DEG C of temperature are avoided using the existing bolt technology that need to make to fiber
The destruction of element, hemicellulose, is greatly improved product yield, does not have air entrance in device, reduce the generation of aldehydic acid, drops
The low generation of enzymatic reaction mortifier, is conducive to follow-up continuous and steady operation.
The present invention can item automatic continuous production, increase embolism density, improve boiling temperature, pressure, it is highly dense
Major diameter helical compression technology will be selected by spending embolism manufacture, and combine piston contraction principle, and the density of qualified embolism is 600-
650kg/m3。
The capacity of the compression conically shaped front end of the present invention is 115-125 kg/m3, fill factor 0.6-0.7, compression cone
The capacity of shape tube rear end is 285-300 kg/m3, the capacity of fill factor 1.0, annular plugs cylinder is 570-600 kg/m3, circle
The capacity of embolism forming tube is 600-650 kg/m in cylindricality3。
The material moisture of the scroll feeder of the present invention is 60%, and the anti-skidding area of compression cylinder and annular plugs cylinder increases
25%, there is enough frictional force to promote material.
Description of the drawings：
Attached drawing 1 is the structural schematic diagram of the present invention；
Attached drawing 2 is the portions the A enlarged drawing of attached drawing 1；
In figure：1, helicoidal gear；3, external cylinder；4, normally closed check (non-return) valve；5, embolism assists loosening device；6, feeding cylinder；7、
Compress helical axis；8, conically shaped is compressed；9, annular plugs cylinder；10, embolism transitional cylinder；11, embolism forming tube in cylinder；12、
Hot water inlet；13, higher pressure steam inlet；14, filtrate discharge mouth；15, cooling water inlet；16, boiling pipe；17, material plug outlet.
Specific implementation mode：
Embodiment 1：
A kind of stalk cellulose alcohol fuel pretreatment unit, composition include：Scroll feeder, the scroll feeder packet
External cylinder 3 is included, boiling pipe 16 is installed on the right side of the external cylinder, compression helical axis is provided in the outer barrel body
7, one end of the compression helical axis is connect with helicoidal gear 1 by bearing, the other end of the compression helical axis
In the annular plugs cylinder 9 of the external cylinder.
The external cylinder includes feeding cylinder 6, is bolted with compression conically shaped 8 on the right side of the feeding cylinder,
The right side of the compression conically shaped is bolted with the annular plugs cylinder, the annular plugs cylinder right side and bolt
Plug transitional cylinder 10 is bolted, and is connected by bolt with embolism forming tube 11 in cylinder on the right side of the embolism transitional cylinder
It connects.
Embodiment 2：
According to stalk cellulose alcohol fuel pretreatment unit described in embodiment 1, the boiling pipe top is provided with hot water
The right end of entrance 12 and higher pressure steam inlet 13, the boiling pipe is separately installed with normally closed check (non-return) valve 4 and embolism auxiliary is loose
The lower part of device 5, the boiling pipe is material plug outlet 17.
Embodiment 3：
Stalk cellulose alcohol fuel pretreatment unit according to embodiment 1 or 2, compression conically shaped end compression
Locating lower part has filtrate discharge mouth 14, and the upper and lower part of the embolism cartridge filter is respectively provided with cooling water inlet 15.
Embodiment 4：
A kind of processing method of stalk cellulose alcohol fuel pretreatment unit, this method comprises the following steps：
Step 1：The feed inlet that corn stalk raw material rouses meter by pin enters, and is discharged by discharge port after metering；
Step 2：Raw material through metering is directly entered precommpression screw conveyor by chute connection；
Step 3：Pass through the raw material of precommpression screw conveyor, bulk density 95-100kg/m3, entered by feed(raw material)inlet,
It is compressed step by step by transportation section, compression section, optical axis section and embolism transitional cylinder successively, when scroll feeder works, filtrate is constantly
Discharge, material plug mass dryness fraction 48-50% are subsequently entered in loose cylinder and are entered boiling pipe into horizontal high voltage steaming after punishment in advance plug loosening device is loose
Steam cooker；
Step 4：Illustrate that material plug density is less than setting density when the electric current of scroll feeder driving motor is less than the numerical value of setting
When for prevent high steam regurgitate occur normally closed type check (non-return) valve open auxiliary material plug generate, when the electricity of scroll feeder driving motor
Stream is increased to fixed number value, check (non-return) valve pushed home, i.e., the bulk density 600-650kg/m that material plug does not reach requirement3, check (non-return) valve
The outlet closing auxiliary material plug of material plug is given birth to through reaching 600-800kg/m of material plug bulk density3Normally closed type check valve afterwards
Original position is retracted, stalk material plug is fallen from feeding plug tube expects that plug loosening device is loose, and raw material subsequently enters boiling pipe boiling；
Step 5：Enter digestion process with steam contact start when material enters boiling pipe, material is continuously into steaming
Pipe is boiled, 190-210 DEG C of boiling temperature, 1.2-1.5 Mpa of cooking pressure, 10-30min of digestion time, drive sprocket is by subtracting
Fast machine is rotated with the speed set, and slowly pushes material to material outlet, assists loosening device to break up by embolism, raw material enters
Separator tube；
Step 6：The operating pressure of separator tube is 1.2-1.3Mpa, and operating temperature is about 190 DEG C, the suitable material of separator tube storage
Material after the boiling of position, ensures the constant of follow-up auger stripper discharging quantity, screw unloading is entered by the material of separator tube
In device；
Step 7：Auger stripper is spurted the discharging that frequency carries out high concentration material, auger stripper work by blow-off valve setting
Pressure is 1.2-1.3Mpa, and operating temperature is about 190 DEG C, and it is discrete that material subsequently enters jetting storehouse release；
Step 8：By 1.2-1.3Mpa volume-expanding pressure-reducings to moment close to 0.1Mpa or so when jetting storehouse spurts, material edge is spurted
The top of the warehouse separation chamber inner cylinder tangentially enters, and discrete material generates cellulose.
Embodiment 5：
The processing method of stalk cellulose alcohol fuel pretreatment unit according to embodiment 4, the tool of the step four
Body process is：It will produce when raw material supply amount is less than feeding capacity and regurgitated because material plug is not close, it is excessive in feeding serew abrasion
In the case of, material plug is not close, can equally cause to regurgitate, normally closed check (non-return) valve is connected with the hydraulic cylinder equipped with solenoid valve, normal operation
When, valve is in cylinder body side, and when the electric current of scroll feeder driving motor is less than original numerical value, i.e. material plug does not reach requirement
Tightness, at this moment solenoid valve valve opening is pushed into piston forward, check (non-return) valve seals the outlet of material plug, the steaming in boiling pipe
Vapour not will produce and regurgitate, and when the electric current of scroll feeder driving motor is increased to fixed number value, at this moment solenoid valve is opened separately immediately
One valve, piston pushed home, normally closed reverse stop valve are detached from the outlet of feeding plug tube, and material plug starts to fall from feeding plug tube, feeding
System starts to restore normal operation, and loose immediately after material plug leaves feeding plug tube, raw material subsequently enters boiling pipe.
Embodiment 6：
The processing method of stalk cellulose alcohol fuel pretreatment unit according to embodiment 4 or 5, in the step three
Bulk density of the raw material in compression section is bulk density 285-300 kg/m3, raw material is 570-600 in the bulk density of optical axis section
kg/m3, bulk density of the raw material in transitional cylinder is 600-650 kg/m3。
Claims (7)
1. a kind of stalk cellulose alcohol fuel pretreatment unit, composition include：Scroll feeder, it is characterized in that：Described
Scroll feeder includes external cylinder, is equipped with boiling pipe on the right side of the external cylinder, is provided in the outer barrel body
Helical axis is compressed, one end of the compression helical axis is connect with helicoidal gear by bearing, the compression helical axis
The other end be located in the annular plugs cylinder of the external cylinder.
2. stalk cellulose alcohol fuel pretreatment unit according to claim 1, it is characterized in that：The external cylinder
Including feeding cylinder, be bolted with compression conically shaped on the right side of the feeding cylinder, the right side of the compression conically shaped and
The annular plugs cylinder is bolted, and is bolted with embolism transitional cylinder on the right side of the annular plugs cylinder, institute
It is bolted with embolism forming tube in cylinder on the right side of the embolism transitional cylinder stated.
3. stalk cellulose alcohol fuel pretreatment unit according to claim 1 or 2, it is characterized in that：The boiling
Pipe top is provided with hot water inlet and higher pressure steam inlet, and the right end of the boiling pipe is separately installed with normally closed check (non-return) valve and bolt
The lower part of plug auxiliary loosening device, the boiling pipe is the outlet of material plug.
4. stalk cellulose alcohol fuel pretreatment unit according to claim 1 or 2 or 3, it is characterized in that：The pressure
Lower part has filtrate discharge mouth at the end compression of contracting conically shaped, and the upper and lower part of the embolism transitional cylinder is respectively provided with cooling
Water inlet.
5. the processing method of the stalk cellulose alcohol fuel pretreatment unit described in a kind of one of claim 1-4, feature
It is：This method comprises the following steps：
Step 1：The feed inlet that corn stalk raw material rouses meter by pin enters, and is discharged by discharge port after metering；
Step 2：Raw material through metering is directly entered precommpression screw conveyor by chute connection；
Step 3：Pass through the raw material of precommpression screw conveyor, bulk density 95-100kg/m3, entered by feed(raw material)inlet,
It is compressed step by step by transportation section, compression section, optical axis section and embolism transitional cylinder successively, when scroll feeder works, filtrate is constantly
Discharge, material plug mass dryness fraction 48-50% are subsequently entered in loose cylinder and are entered boiling pipe into horizontal high voltage steaming after punishment in advance plug loosening device is loose
Steam cooker；
Step 4：Illustrate that material plug density is less than setting density when the electric current of scroll feeder driving motor is less than the numerical value of setting
When for prevent high steam regurgitate occur normally closed type check (non-return) valve open auxiliary material plug generate, when the electricity of scroll feeder driving motor
Stream is increased to fixed number value, check (non-return) valve pushed home, i.e., the bulk density 600-650kg/m that material plug does not reach requirement3, check (non-return) valve
The outlet closing auxiliary material plug of material plug is given birth to through reaching 600-800kg/m of material plug bulk density3Normally closed type check valve afterwards
Original position is retracted, stalk material plug is fallen from feeding plug tube expects that plug loosening device is loose, and raw material subsequently enters boiling pipe boiling；
Step 5：Enter digestion process with steam contact start when material enters boiling pipe, material is continuously into steaming
Pipe is boiled, 190-210 DEG C of boiling temperature, 1.2-1.5 Mpa of cooking pressure, 10-30min of digestion time, drive sprocket is by subtracting
Fast machine is rotated with the speed set, and slowly pushes material to material outlet, assists loosening device to break up by embolism, raw material enters
Separator tube.
6. a kind of processing method using stalk cellulose alcohol fuel pretreatment unit, it is characterized in that：The step four
Detailed process is：It will produce when raw material supply amount is less than feeding capacity and regurgitated because material plug is not close, worn in feeding serew
In the case of more, material plug is not close, can equally cause to regurgitate, and normally closed check (non-return) valve is connected with the hydraulic cylinder equipped with solenoid valve, normal to transport
When row, valve is in cylinder body side, and when the electric current of scroll feeder driving motor is less than original numerical value, i.e., material plug, which is not achieved, wants
The tightness asked, at this moment solenoid valve is by valve opening, and forward, check (non-return) valve will expect that the outlet of plug seals to promotion piston, in boiling pipe
Steam not will produce and regurgitate, and when the electric current of scroll feeder driving motor is increased to fixed number value, at this moment solenoid valve is opened immediately
Another valve, piston pushed home, normally closed reverse stop valve are detached from the outlet of feeding plug tube, and material plug starts to fall from feeding plug tube, feed
Material system starts to restore normal operation, and loose immediately after material plug leaves feeding plug tube, raw material subsequently enters boiling pipe.
7. the processing method of stalk cellulose alcohol fuel pretreatment unit according to claim 6, it is characterized in that：It is described
The step of three in raw material compression section bulk density be bulk density 285-300 kg/m3, raw material is close in the accumulation of optical axis section
Degree is 570-600 kg/m3, bulk density of the raw material in transitional cylinder is 600-650 kg/m3。
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617433A (en) * | 1968-05-15 | 1971-11-02 | Douglas G Sutherland | Defibering discharger for continuous digesters |
| CN2208589Y (en) * | 1994-09-13 | 1995-09-27 | 南京化工学院 | Digester for vegetable cellulose |
| CN2622236Y (en) * | 2003-02-25 | 2004-06-30 | 张家港市华杭造纸制浆设备有限公司 | Cone-pipe of material feeding screw |
| CN1936177A (en) * | 2005-09-20 | 2007-03-28 | 天津轻工业机械厂设计研究所 | Cotton-short-fiber continuous steam-poaching method and apparatus |
| CN103790056A (en) * | 2012-10-31 | 2014-05-14 | 中国科学院青岛生物能源与过程研究所 | Method for pretreating cellulosic biomass |
| CN105368703A (en) * | 2015-11-27 | 2016-03-02 | 江苏大学 | Device and technique for preparing fuel ethanol through corn straw solid-liquid parallel method |
| CN106110751A (en) * | 2015-05-06 | 2016-11-16 | （株）国际环境技术 | It is equipped with oblique-roller sieve and 2 sections of dehydration-type solid-liquid separating machines of dual conical screen |
| CN106834362A (en) * | 2017-03-24 | 2017-06-13 | 黑龙江中丹建业生物能源有限公司 | Stalk cellulose ethanol straw pretreatment method |
-
2018
- 2018-03-12 CN CN201810201530.0A patent/CN108425262A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3617433A (en) * | 1968-05-15 | 1971-11-02 | Douglas G Sutherland | Defibering discharger for continuous digesters |
| CN2208589Y (en) * | 1994-09-13 | 1995-09-27 | 南京化工学院 | Digester for vegetable cellulose |
| CN2622236Y (en) * | 2003-02-25 | 2004-06-30 | 张家港市华杭造纸制浆设备有限公司 | Cone-pipe of material feeding screw |
| CN1936177A (en) * | 2005-09-20 | 2007-03-28 | 天津轻工业机械厂设计研究所 | Cotton-short-fiber continuous steam-poaching method and apparatus |
| CN103790056A (en) * | 2012-10-31 | 2014-05-14 | 中国科学院青岛生物能源与过程研究所 | Method for pretreating cellulosic biomass |
| CN106110751A (en) * | 2015-05-06 | 2016-11-16 | （株）国际环境技术 | It is equipped with oblique-roller sieve and 2 sections of dehydration-type solid-liquid separating machines of dual conical screen |
| CN105368703A (en) * | 2015-11-27 | 2016-03-02 | 江苏大学 | Device and technique for preparing fuel ethanol through corn straw solid-liquid parallel method |
| CN106834362A (en) * | 2017-03-24 | 2017-06-13 | 黑龙江中丹建业生物能源有限公司 | Stalk cellulose ethanol straw pretreatment method |
Non-Patent Citations (2)
| Title |
|---|
| 詹怀宇 等: "《制浆技术》", 30 September 2012, 中国轻工出版社 * |
| 陈克复: "《制浆造纸机械与设备 上》", 30 June 2011, 中国轻工出版社 * |
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Application publication date: 20180821 |