CN109776689A - A kind of processing technology of corn - Google Patents

Abstract

The invention discloses a kind of processing technologys of corn, in turn include the following steps: (1) extracting plumule, after plumule is dry, be packaged as plumule finished product；(2) the hominy grits after mentioning embryo mixes immersion with enzyme is impregnated；(3) the corn after impregnating enters crushing device and is crushed；(4) fiber wash is carried out to broken corn, fiber stays on sieve, and starch and albumen are washed till under sieve；(5) the starch in screenings is separated with albumen, the albumen that separation overflow obtains enters protein concentration device and is concentrated, and after being dehydrated and dried subsequently into albumen dewatering drying device, obtains albumen finished product；(6) starch purification is carried out to the starch milk that separating underflow obtains；(7) dehydration is carried out to the starch milk being refining to obtain and improve concentration；(8) high-concentration starch milk is dried, obtains finished product of starch.The dilute corn pulp of step (2) is added in dry fiber after being concentrated by evaporation, and obtains fibrous finished product after continuing drying.The product category of the technique is complete, and yield is high, and with low investment, low energy consumption.

Description

A kind of processing technology of corn

Technical field

The present invention relates to a kind of processing technology of starch, in particular to a kind of processing technology of corn belongs to starch processing Technical field.

Background technique

Traditional corn processing starch uses wet method processing technology, includes the following steps: that 1. use sulfurous acid soak；2. logical Two-stage corase grinding (having the extraction of level-one plumule after every grade of corase grinding) is crossed, level-one fine grinding grinds material；3. passing through fiber wash for fiber It extracts；4. starch and albumen are separated by centrifuge；5. starch purification, dehydration, dry, packaging；6. albumen dehydration is done Dry and packaging；7. germ washing, dehydration, drying and packaging；8. fiber dehydration, dry and packaging.Technique is more mature, flow line It is almost the same.

Maize peel is made of semipermeable membrane, infiltrates solable matter inside niblet, it is necessary to will be semi-permeable Film becomes permeable membrane, and corn uses sulfurous acid soak 40-48 hours of 0.15%-0.25%, steeping tank temperature 48- under common process The protein net of niblet can be destroyed at 53 DEG C, make the starch granules separate out wrapped up by protein net, thus favorably It is separated in fiber and protein.

Due to plumule to be extracted, traditional handicraft can only be using 2 grades of corase grinding, 1 grade of fine grinding, and needs to extract embryo after corase grinding Bud, centre have needed the equipment such as surge tank, delivery pump, germ cyclone.Plumule is liquid after extracting, and need to use squeezing machine Plumule is dewatered to 53% or so, recycling pipe bundle drier that moisture content is dried is 7% moisture.

Starch separator is used as the separation of starch and albumen, in the starch after separation, protein content≤3.5%, then pass through Protein content is reduced to 0.4% or less by washing swirler.Starch milk desaccharification workshop is liquefied, is saccharified, is filtered, filtered Albumen is generally directly taken out.

When albumen dehydration is using vacuum drum filter, filter cloth washing is washed using process water, 300 ton/days of jade Rice producing starch project, washing water need 35m3/h, this part will increase the treating capacity of thickener.

The vacuum pump of vacuum drum and evaporator needs working solution, and 300 ton/days of corn processing starch project needs working solution 10m3/h is generally directly discharged to sewage treatment plant with clear water after.

Pipe bundle drier handles tail gas, fan outlet by negative pressure transportation, Asta-3746 discharging, pulse into cold air, product Direct emission.

In conclusion wet method processing technology is primarily present following shortcoming: 1. process flows are too long, cause equipment more, Investment is high, and power consumption is big；2. sulfurous acid soak need to be carried out, soaking time is long, and energy consumption is high, causes water consumption big, sewage quantity Greatly.

Summary of the invention

It is an object of the present invention to overcome problems of the prior art, a kind of processing technology of corn is provided, can be saved Acid-producing apparatus, intermediate storage tank, delivery pump, germ cyclone etc. are removed, steeping tank quantity and volume will also greatly reduce, and reduce steam Consumption.

In order to solve the above technical problems, the processing technology of a kind of corn of the invention, in turn includes the following steps: (1) passing through It mentions fetus device to extract plumule, after plumule is by the drying of plumule drying device, is packaged as plumule finished product；(2) the jade after mentioning embryo Rice crushed grain enters enzymatic steeping device and mixes immersion with enzyme is impregnated；(3) the corn after impregnating enters crushing device and is crushed；(4) right Broken corn carries out fiber wash, and fiber stays on sieve, and starch and albumen are washed till under sieve；(5) to the starch in screenings It is separated with albumen, the albumen that separation overflow obtains enters protein concentration device and is concentrated, and is dehydrated subsequently into albumen dry After dry device is dehydrated and is dried, albumen finished product is obtained；(6) starch purification is carried out to the starch milk that separating underflow obtains；(7) right The starch milk being refining to obtain carries out dehydration and improves concentration；(8) high-concentration starch milk is dried, obtains finished product of starch.

Compared with the existing technology, the present invention, which achieves, following proposes plumule dry method the utility model has the advantages that (1) first passing through and mentioning fetus device It takes out, the plumule of proposition is solid, reduces plumule dehydration equipment, and drying equipment greatly reduces, and the steam consumption also reduces, by plumule Package mechanism is packaged as plumule finished product.(2) the hominy grits after mentioning embryo enters enzymatic steeping device after metering, using impregnate enzyme into Row impregnates, and since maize peel has been destroyed after mentioning embryo, soaking time foreshortens to a quarter of sulfurous acid soak hereinafter, impregnating Temperature is greatly lowered.With it is traditional propose proembryo sulfurous acid soak compared with, reduce acid-producing apparatus, soaking time greatly shortens, Steeping tank quantity and volume will also greatly reduce；Soaking temperature is also greatly lowered, and reduces steam consumption.(3) corn after impregnating The protein net of grain destroys, and makes the starch granules separate out wrapped up by protein net, to be conducive to fiber and protein point It opens；Soaked corn is crushed subsequently into crushing device, then plus 1.2 times of process waters, so that corn is broken into 12 valves or so. Since plumule is extracted, it is not required to reuse the equipment such as intermediate storage tank, delivery pump, germ cyclone.Broken corn into Enter fiber wash device and carry out the screening washing of seven stage countercurrents, fiber stays on sieve, and starch and albumen are washed till under sieve, zein fiber Enter from the first order, process water enters from the 7th grade, and final fiber is discharged from the 7th grade, and after technique water washing starch, concentration becomes Height is discharged at starch milk from the first order.

As an improvement of the present invention, after (2) soak is evaporated concentration, dense corn pulp is obtained to step；Step (4) in After fiber dehydration and drying, dense corn pulp is added in fiber, continues to be dried to obtain fibrous finished product.Due to using enzymatic steeping, ton Corn slurry-outlet quantity greatly reduces, and dilute corn pulp of 0.3 ton of concentration 5% of corn pulp per ton, dilute corn pulp passes through evaporation concentration device It is concentrated, the corn pulp concentration after concentration is up to 43% or so.Step (4) obtained in fiber aqueous 90%, will be fine by squeezing machine Dimension moisture is expressed to 62%, into pipe bundle drier it is dry after, 43% corn pulp be added it is dry after fiber in, then with restraining drying Machine be dried into 10% or so plus pulp fibres, not only recycled corn pulp, but also improve the quality of fiber, improved added value of product.

As a further improvement of the present invention, step (1) in, corn is mentioned by bucket elevator one to a high position, first flows through stone Machine removes impurity, passes through pipe magnetic separator removal metal object, temporary subsequently into corn temporary storing bin, then is sent out by corn conveyer, After adding water to corn from watering machine, it is sent into profit water pot and stands after being promoted by bucket elevator two, then by profit water pot conveyer Discharge, is promoted to a high position by bucket elevator three, is extracted plumule by germ separator, the solid plumule of extraction, then passes through plumule Drying device is dried to obtain plumule finished product.Watering machine adds water to improve Moisture of Maize to 18%, places 12 hours in profit water pot Plumule is set sufficiently to absorb water, the solid plumule moisture content that germ separator extracts is 15%, and the yield of plumule can achieve 7%, plumule purity 70% or more；Since solid plumule moisture content is 15%, then being dried to moisture content by plumule drying device is 7% moisture, is reduced Plumule dehydration equipment, drying equipment greatly reduce, and the steam consumption also reduces.Hominy grits after mentioning embryo is discharged from hominy grits efferent duct.

As a further improvement of the present invention, step (1) described in plumule drying device include plumule pipe bundle drier, institute The spout for stating plumule pipe bundle drier is connected with the germ outlet for mentioning fetus device, the discharging of the plumule pipe bundle drier Mouth send pipe to be connected by plumule airlock with plumule wind, and the plumule wind send feed inlet phase of the discharge port of pipe with plumule Asta-3746 Even, the discharge port of the plumule Asta-3746 is connected with the entrance of plumule feed bin；The top outlet inlet and embryo of the plumule Asta-3746 The entrance of bud Asta-3746 exhaust fan is connected, and the outlet of the plumule Asta-3746 exhaust fan passes through plumule return pipe and the plumule pipe The refluxing opening of beam drying machine is connected；The air inlet phase of the top outlet inlet of the plumule pipe bundle drier and drying machine Asta-3746 Even, the top outlet inlet of the drying machine Asta-3746 is connected with the entrance of drying machine Asta-3746 exhaust fan, the drying machine brake gram The outlet of imperial exhaust fan is connected with dry tail gas discharging pipe.Wet embryo bud enters feeding for plumule pipe bundle drier from wet embryo bud efferent duct Material mouth, steam enter from steam pipe, are 7% from 15% moisture drying to moisture content by plumule moisture content, become cold after steam heat release Condensate is discharged from condensate pipe；Dry plumule enters plumule wind by plumule airlock and send pipe, send pipe to be sent into plumule by plumule wind and stops Cron and discharging enter plumule feed bin, then from the bottom discharge port of plumule feed bin enter plumule packing scale be packaged into plumule at Product.Plumule wind, which is sent, cancels pulse dust collector on pipeline, reduce equipment investment cost；From the tail gas being discharged at the top of plumule Asta-3746 Containing a small amount of plumule, under the suction of plumule Asta-3746 exhaust fan, is returned in plumule pipe bundle drier and returned by plumule return pipe It receives, had not only improved plumule yield, but also reduce exhaust emissions, so that the air inlet of plumule pipe bundle drier is become hot wind from cold wind, all return The heat in air draft is received, energy consumption is substantially reduced.What is be discharged at the top of plumule pipe bundle drier enters drying machine brake gram containing wet tail gas Dragon carries out separation dedusting, is entered scrubbing tower from the extraction of drying machine Asta-3746 exhaust fan or is discharged to atmosphere.

As a further improvement of the present invention, step (2) described in enzymatic steeping device include steeping tank and corn conveying Tank, hominy grits and enzyme preparation after mentioning embryo, which respectively enter, carries out mixing immersion in steeping tank, the niblet after immersion enters corn In transfer pot, the bent sieve of dehydration is pumped by corn conveying with water flow；Soak is pumped into sheathed heater by steeping tank circulation Indirect heating, corn pulp a part after heating, which returns in steeping tank, to be recycled, after another part corn pulp enters evaporator concentration It carries out fiber and pours slurry.Enzyme preparation impregnates the hominy grits after mentioning embryo, and soaking time is within 10 hours, soaking temperature 28 ~32℃；The protein net of niblet is destroyed, makes the starch granules separate out wrapped up by protein net, to be conducive to fibre Dimension is separated with protein, convenient for the broken of lower road.Soaking time greatly shortens, soaking temperature sharp fall, it is possible to reduce steams Vapour consumption, steeping tank quantity and volume will also greatly reduce.Sheathed heater, as heat source, is become using steam after steam heat release Condensed water is discharged from condensate pipe.

As a further improvement of the present invention, step (3) in the crushing device include degerming mill machine and needle mill, leaching Corn enters the bent sieve dehydration of dehydration after bubble, and dewatered corn, which enters in corn surge tank, keeps in, subsequently into degerming mill machine into Row degerming mill enters back into needle mill and carries out fine grinding, and storage tank stores after the material after fine grinding enters mill, then by screening conveying pumping Enter fiber wash device and carries out screening washing；The water separated out from the bent screening of dehydration enters water return tank, and the overflow water of water return tank is flow to The reuse into corn surge tank is sent in fiber wash device reuse, the underflow of water return tank.Due to dry method mention after embryo maize peel by It destroys, after enzymatic steeping, only can carry out fine grinding after level-one degerming mill eliminates second-time breakage compared with traditional handicraft, And the water flow in road is used for preceding road after recycling, and greatly reduces water consume, while greatly reducing sewage discharge.

As a further improvement of the present invention, (5) middle starch is separated with albumen using disk plate centrifuge step, from dish The albumen that piece centrifuge overflow goes out enters dilute seitan storage tank, is pumped out by the conveying of dilute seitan, after revolving filter filters, enters Thickener is concentrated, and enters dense seitan storage tank after improving protein concentration, then pumped out by dense seitan delivery pump, through heat exchanger one After cooling, albumen dewatering drying device is sent by dense seitan delivery pipe；What thickener generated is drained into process water pot, by process Water is pumped to degerming mill machine and needle mill reuse.The protein concentration gone out from disk plate centrifuge overflow is 15g/l, and thickener utilizes egg The specific gravity difference of Bai Yushui is separated, and improves protein concentration to 90 ~ 110g/l, can carry out vacuum suction filter, thickener fortune At the beginning of row, the concentration of discharging is still low, and concentrated machine return pipe returns to dilute seitan storage tank circulation.The draining warp that thickener test-run a machine generates Protein concentration drainpipe is discharged into process water pot, embryo grinding machine and needle mill using the process water generated in concentration process, can be further Water consume is reduced, the albumen in recycle-water reduces sewage discharge.The leak of impurity and thickener that revolving filter is released enters Concentration section bleeder pipe returns to fiber wash device reuse from concentration section bleeder pipe.

As a further improvement of the present invention, step (5) in albumen dewatering drying device include vacuum drum filter, Dense albumen solution, which enters in vacuum drum filter, is dehydrated into wet seitan cake, and wet seitan cake enters the progress of albumen pipe bundle drier It is dry；Rotary drum wash water pump extracts dilute seitan in dilute seitan storage tank out, the backwash inlet of vacuum drum filter is sent into, to filter cloth It is cleaned, the draining of filter wash cloth returns in dilute seitan storage tank.The protein solution that concentration is 90 ~ 110g/l enters vacuum drum suction Filter dehydration, vacuum drum filter hollow rotary drum outer surface attachment filter cloth be filter medium, after dehydration on filter cloth shape At wet seitan cake, moisture content is 55 ~ 60%, reduces energy consumption dry in next step.Filter cloth is carried out with dilute seitan in dilute seitan storage tank Cleaning, and ejected wash water returns in dilute seitan storage tank, does not increase the treating capacity of thickener, and convenient for recycling albumen, reduces water consumption.

As a further improvement of the present invention, under the swabbing action of vacuum pump, the liquid phase of vacuum drum filter enters Vacuum tank, suction strainer water pump extract the water in vacuum tank out, are sent into reuse in dilute seitan storage tank through suction strainer outlet pipe one, or through inhaling It filters out water pipe two and is sent into reuse in process water pot；The water outlet of vacuum pump enters vacuum pump circulating water tank by vacuum water pump outlet pipe, Gone out by vacuumizing recycled water pumping, after the cooling of heat exchanger two, is repeated by the water inlet that vacuum pump water inlet pipe returns to vacuum pump It utilizes；The overflow of vacuum drum filter flow in dense seitan storage tank and recycles.The process water that vacuum suction filter generates returns to dilute seitan Reuse in storage tank or process water pot, vacuum pump also use recirculated water, greatly reduce the water consumption of whole system.Vacuum drum is inhaled The liquid phase of overflow and the discharge of filter is returned in dense seitan storage tank by vacuum drum overflow drain tube and is recycled, can be into one Step reduces water consume.

As a further improvement of the present invention, the step starch milk that (6) middle separating underflow obtains is using multistage washing swirler Carry out starch purification, after multi-stage countercurrent washs, starch concentration increase, the overflow of chopped-off head washing swirler return to disk from Scheming separates again；(6) starch milk that step is refining to obtain also successively sized mixing, liquefied, being saccharified, filtering, decolourizing by starch milk, from Son exchange and evaporation, obtain glucose, filling by the progress of glucose filling mechanism, take off wherein the albumen being obtained by filtration enters albumen The recycling of water drying device.The step starch concentration that (6) middle separating underflow obtains is 16 Baume degrees, wherein containing 3.5% albumen, Starch purification uses 12 grades of washing swirlers, and using countercurrent washing principle, fresh water enters from final stage washing swirler, Ge Jixuan Stream device overflow returns to the washing water as previous stage step by step, can sufficiently recycle starch, improves starch recoveries, improves starch milk step by step Concentration, while reduce a fresh water dosage.Starch concentration is increased to 20 ~ 22 Baume degrees, albumen after starch refines Content is reduced to 0.4% or less.The overflow of chopped-off head washing swirler returns to disk plate centrifuge and separates again, guarantees that material is all able to Recycling.Starch milk after purification can not only produce starch, can also produce glucose, increase the type of product, meet market A variety of demands；The albumen filtered out during glucose processed is recycled, and product yield can be improved, increase economic efficiency.

Detailed description of the invention

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, attached drawing only provide with reference to Illustrate to use, it is non-to limit the present invention.

Fig. 1 is the flow chart of the processing technology of corn of the present invention.

Fig. 2 is the flow chart that fetus device is mentioned in the present invention.

Fig. 3 is the flow chart of plumule drying device in the present invention.

Fig. 4 is the flow chart of enzymatic steeping device in the present invention.

Fig. 5 is the flow chart of crushing device in the present invention.

Fig. 6 is the flow chart of protein concentration device in the present invention.

Fig. 7 is the flow chart of albumen dewatering drying device in the present invention.

In figure: 1. bucket elevators one；2. stone remover；3. pipe magnetic separator；4. corn flow scale；5. corn temporary storing bin；6. beautiful Rice conveyer；7. watering machine；8. bucket elevator two；9. moistening water pot；10. moistening water pot conveyer；11. bucket elevator three；12. Germ separator；13. pulse dust collector one；14. pulse dust collector two；15. plumule pipe bundle drier；16. plumule airlock；17. embryo Bud Asta-3746；18. plumule feed bin；18a. plumule packing scale；19. drying machine Asta-3746；20. steeping tank；20a. steeping tank corn Outlet；The outlet of 20b. steeping tank corn pulp；21. sheathed heater；22. corn transfer pot；23. the bent sieve of dehydration；24. corn buffers Tank；25. water return tank；26. degerming mill machine；27. needle mill；28. storage tank after mill；29. dilute seitan storage tank；30. revolving filter； 31. thickener；Discharging distributor is concentrated in 31a.；32. dense seitan storage tank；33. heat exchanger one；34. process water pot；35. vacuum turns Drum rotary vacuum filter；36. vacuum tank；37. vacuum pump circulating water tank；38. heat exchanger two；F1. pulse dust collector exhaust fan one；F2. arteries and veins Rush deduster exhaust fan two；F3. plumule Asta-3746 exhaust fan；F4. drying machine Asta-3746 exhaust fan；F5. crushing section exhaust blower； B1. steeping tank circulating pump；B2. corn delivery pump；B3. delivery pump is sieved；B4. dilute seitan delivery pump；B5. dense seitan delivery pump； B6. process water pump；B7. rotary drum wash water pumps；B8. suction strainer water pump；B9. vacuum pump；B10. evacuation cycle water pump；G1. wet embryo bud Efferent duct；G2. hominy grits efferent duct；G3. plumule wind send pipe；G4. steam pipe；G5. condensate pipe；G6. plumule return pipe；G7. Dry tail gas discharging pipe；G8. enzyme preparation pipe；G9. dilute corn pulp efferent duct；G10. steeping tank return pipe；G11. soaking corn is defeated Outlet pipe；G12. water return tank overflow pipe；G13. water return tank underflow pipe；G14. process water pipe；G15. material conveying tube after grinding；G16. it is centrifuged Machine overflow pipe；G17. dilute seitan delivery pipe；G18. dense seitan delivery pipe；G19. thickener discharge nozzle；G20. thickener return pipe； G21. protein concentration drainpipe；G22. wet albumen efferent duct；G23. rotary vacuum filter backwash inlet pipe；G24. rotary vacuum filter backwash outlets Pipe；G25. vacuum drum overflow drain tube；G26. vacuum pump water inlet pipe；G27. vacuum water pump outlet pipe；G28. suction strainer outlet pipe one； G29. suction strainer outlet pipe two；G30. concentration section bleeder pipe；G31. cooling tower downcomer；G32. cooling tower upper hose.

Specific embodiment

As shown in Figure 1, the processing technology of corn of the invention in turn includes the following steps: (1) by mentioning fetus device for plumule It extracts, the plumule of proposition is that solid is packaged as plumule finished product after plumule is by the drying of plumule drying device；(2) after mentioning embryo Hominy grits enter enzymatic steeping device with impregnate enzyme mix immersion；(3) the corn after impregnating enters crushing device and is crushed, Again plus 1.2 times of process waters, corn is made to be broken into 12 valves or so；(4) fiber wash device is entered to broken corn and carry out seven Stage countercurrent screening washing, fiber stay on sieve, and starch and albumen are washed till under sieve；Zein fiber enters from the first order, process water Enter from the 7th grade, final fiber is discharged from the 7th grade, and after technique water washing starch, concentration gets higher into starch milk, from the first order Discharge.(5) the starch in screenings is separated with albumen, the albumen that separation overflow obtains enters the progress of protein concentration device Concentration, after being dehydrated and dried subsequently into albumen dewatering drying device, obtains albumen finished product；(6) separating underflow is obtained Starch milk carries out starch purification；(7) dehydration is carried out to the starch milk being refining to obtain and improve concentration；(8) high-concentration starch milk is carried out It is dry, obtain finished product of starch.

It is 5%, after being evaporated concentration to corn pulp concentration dilute in step (2) soak, obtains the corn that concentration is 43% Slurry.

Step (2) in mention the hominy grits after embryo and enzyme preparation respectively enters and carries out mixing immersion, soaking time in steeping tank 20 Within 10 hours, soaking temperature is 28 ~ 32 DEG C；Niblet after immersion enters in corn transfer pot 22, with water flow by corn Delivery pump B2 is sent into the bent sieve 23 of dehydration；Soak is sent into indirect heating in sheathed heater 21, heating by steeping tank circulating pump B1 Corn pulp a part afterwards, which returns in steeping tank 20, to be recycled, and progress fiber pours after another part corn pulp enters evaporator concentration Slurry.

Step (3) in impregnate after corn enter bent 23 dehydration of sieve of dehydration, dewatered corn enters in corn surge tank 24 temporarily It deposits, carries out degerming mill subsequently into degerming mill machine 26, enter back into needle mill 27 and carry out fine grinding, the material after fine grinding stores up after entering mill Tank 28 stores, and is then sent into fiber wash device by screening delivery pump B3 and carries out screening washing；It is isolated from the bent sieve 23 of dehydration Water enters water return tank 25, and the overflow water of water return tank 25 flow to fiber wash device reuse, and the underflow of water return tank 25 is sent slow to corn Rush reuse in tank 24.

Step (4) obtained in fiber aqueous 90%, fiber moisture is expressed to 62% by squeezing machine, it is dry to enter back into tube bank Dry machine is further dried, and the dense corn pulp that concentration is 43% is added in dry fiber, makes fiber moisture after continuing drying It is down to 10%, obtains fibrous finished product.

(5) middle starch is separated with albumen using disk plate centrifuge step, the protein concentration gone out from disk plate centrifuge overflow It is sent out into dilute seitan storage tank 29 by dilute seitan delivery pump B4 for 15g/l, after the filtering of revolving filter 30, into thickener 31 are concentrated, and so that protein concentration is reached 90 ~ 110g/l, and enter dense seitan storage tank 32, then pumped out by dense seitan delivery pump B5, After the cooling of heat exchanger 1, albumen dewatering drying device is sent by dense seitan delivery pipe；What thickener 31 generated is drained into Process water pot 34 is sent by process water pump B6 to 27 reuse of degerming mill machine 26 and needle mill.

Step (5) in protein solution enter in vacuum drum filter 35 and be dehydrated, the filter of hollow rotary drum outer surface attachment Cloth is filter medium, and it is 55 ~ 60% that the protein solution that concentration is 90 ~ 110g/l, which is dehydrated to moisture content, is restrained subsequently into albumen Drying machine is dried；Rotary drum wash water pumps B7 and extracts dilute seitan in dilute seitan storage tank 29 out, is sent into vacuum drum filter 35 Backwash inlet, filter cloth is cleaned, the draining of filter wash cloth returns in dilute seitan storage tank 29.

The step starch concentration that (6) middle separating underflow obtains is 16 Baume degrees, wherein containing 3.5% albumen, through starch Starch concentration is increased to 20 ~ 22 Baume degrees after purification, and protein content is reduced to 0.4% or less；Starch purification is using 12 grades of washings Cyclone, fresh water enter from final stage washing swirler, and cyclone overflows at different levels return to the washing water as previous stage step by step, first The overflow of grade washing swirler returns to disk plate centrifuge and separates again.

(6) starch milk that step is refining to obtain also successively sizes mixing, liquefies, being saccharified, filtering, decolourizing by starch milk, ion is handed over It changes and evaporates, obtain glucose, it is filling by the progress of glucose filling mechanism, it is done wherein the albumen being obtained by filtration enters albumen dehydration Dry device recycling.

Compared with the processing technology of traditional corn, power consumption of the invention saves 10 ~ 15%, and the steam consumption saves 8% or so, sewage Discharge amount reduces 20% or more.

The germ outlet for mentioning fetus device is connected with the entrance of plumule drying device, the outlet of plumule drying device and plumule packet Mounting mechanism is connected；The hominy grits outlet for mentioning fetus device is connected with the entrance of metering device, the outlet of metering device and enzymatic steeping The feed inlet of device is connected, and the corn outlet of enzymatic steeping device passes through the charging of soaking corn efferent duct G11 and crushing device Mouthful be connected, the discharge port of crushing device is connected with the feed inlet of fiber wash device, the oversize of fiber wash device export and The feed inlet of fiber dewatered drying device is connected, the feed inlet phase of the discharge port and fiber drying device of fiber dewatered drying device Even, the discharge port of fiber drying device is connected with fiber packing mechanism.

Enzymatic steeping device soak outlet is connected with the entrance of evaporation concentration device, the outlet of evaporation concentration device and The corn pulp entrance of fiber drying device is connected.Due to using enzymatic steeping, ton corn slurry-outlet quantity is greatly reduced, and corn per ton goes out Dilute corn pulp of 0.3 ton of concentration 5% or so is starched, dilute corn pulp is concentrated by evaporation concentration device, and the corn pulp after concentration is dense Degree up to 43% or so, be added it is dry after fiber in, then with pipe bundle drier be dried into 10% or so plus pulp fibres, both returned Corn pulp has been received, and has improved the quality of fiber, has improved added value of product.

The screenings outlet of fiber wash device is connected with the feed inlet of disk plate centrifuge, and the overflow port of disk plate centrifuge is logical It crosses dilute seitan overflow pipe to be connected with the feed inlet of protein concentration device, discharge port and the albumen dehydration and drying of protein concentration device fill The feed inlet set is connected, and the discharge port of albumen dewatering drying device is connected with albumen package mechanism.It is washed through fiber wash device Contain albumen in starch out, separated by disk plate centrifuge, disk plate centrifuge is different using specific gravity, starch specific gravity Greatly, underflow is walked, the concentration of underflow starch milk is 16 Baume degrees.Albumen bulk density is small, walks overflow, and overflow protein concentration is 15g/l, overflows The albumen of stream enters protein concentration device by dilute seitan overflow pipe and is concentrated into 90 ~ 110g/l, then by albumen dewatering drying device The moisture of albumen is reduced to 10%, albumen finished product is packaged as by albumen package mechanism.

The underflow outlet of disk plate centrifuge is connected with the feed inlet of starch refining plant, and the starch milk of starch refining plant goes out Mouth is connected with the feed inlet of starch milk dehydration device, the entrance phase of the discharge port and starch drying device of starch milk dehydration device Even, the outlet of starch drying device is connected with starch packaging machine structure.The concentration of underflow starch milk is 16 Baume degrees, protein content 3.5%, into starch refining plant, starch refining plant generallys use 12 grades of washing swirlers, using countercurrent washing principle, newly Fresh water enters from final stage washing swirler, and cyclone overflows at different levels return to the washing water as previous stage step by step, can sufficiently recycle Starch improves starch recoveries, while reducing the dosage of a fresh water.The overflow of chopped-off head washing swirler enters starch and seitan Seperator is separated again.After purification, starch concentration is increased to 20 ~ 22 Baume degrees, protein content be reduced to 0.4% with Under.

The process water out of fiber dewatered drying device is connected with the water inlet of fiber wash device, and fiber is dehydrated and is generated Process water, be returned directly to fiber wash device and recycle.

The overflow outlet of starch refining plant is connected with the feed inlet of disk plate centrifuge, goes out the overflow of starch refining plant Water returns to disk plate centrifuge and is separated again, to recycle the starch in overflow.

The siphon water out of starch milk dehydration device is connected with the water inlet of starch refining plant, generates starch milk dehydration Process water return to starch refining plant utilization.

Starch refining plant starch milk outlet can also successively with starch milk size mixing device, liquefying plant, saccharification apparatus, Filter device, decoloration device, ion interchange unit are connected with vaporising device, outlet and the glucose filling mechanism phase of vaporising device Even；The much filtrate outlet of filter device is connected with the feed inlet of albumen dewatering drying device.Starch milk after purification can also be made Sugar is successively sized mixing, is liquefied, being saccharified, filtering, decolourizing by starch milk, ion exchange and evaporation, glucose being made, by glucose The filling sale of filling mechanism；During sugaring, a small amount of albumen being obtained by filtration enters the recycling of albumen dewatering drying device, improves and produces Product added value.

As shown in Fig. 2, mentioning fetus device includes the bucket elevator 1 for promoting new corn, the outlet of bucket elevator 1 with The entrance of stone remover 2 is connected, and the outlet of stone remover 2 is connected with the entrance of pipe magnetic separator 3, the outlet of pipe magnetic separator 3 and corn temporary storing bin 5 Entrance be connected, the outlet of corn temporary storing bin 5 is equipped with corn conveyer 6, the outlet of corn conveyer 6 and the entrance of watering machine 7 It is connected, the outlet of watering machine 7 is connected with the entrance of bucket elevator 28, the outlet of bucket elevator 28 and entering for profit water pot 9 Mouth is connected, and the outlet of profit water pot 9 is connected with the entrance of profit water pot conveyer 10, the outlet of profit water pot conveyer 10 and bucket lifting The entrance of machine 3 11 is connected, and the outlet of bucket elevator 3 11 is connected with the entrance of germ separator 12, the plumule of 12 upper end of germ separator Outlet is connected with wet embryo bud efferent duct G1, and the hominy grits outlet of 12 bottom of germ separator is connected with hominy grits efferent duct G2.

Corn is mentioned by bucket elevator 1 to a high position, is first flowed through stone remover 2 and is removed the impurity such as silt, stone, passes through forever Magnetic cylinder 3 removes the metal objects such as iron nail, iron sheet or screw, temporary into corn temporary storing bin 5 then after the weighing of corn flow scale 4, Then it is sent out by corn conveyer 6, by watering machine 7 plus water, improves Moisture of Maize to 18% or so, by bucket elevator 28 It is sent into after promotion in profit water pot 9, places 12h or so, allow plumule sufficiently to absorb water, then be discharged by profit water pot conveyer 10, by bucket type Elevator 3 11 is promoted to a high position, is then extracted plumule by germ separator 12；The solid plumule of extraction is from wet embryo bud efferent duct G1 discharge, plumule yield can achieve 7%, and 70% or more plumule purity, plumule moisture content is 15% or so, then dry by plumule It is 7% moisture that device, which is dried to moisture content, reduces plumule dehydration equipment, drying equipment greatly reduces, and the steam consumption also reduces.Mention embryo Hominy grits afterwards is discharged from hominy grits efferent duct G2.

The dust that stone remover 2 and corn flow scale 4 generate enters in pulse dust collector 1 after dedusting, by pulse dust collector One F1 of exhaust fan extraction discharge.The dust that germ separator 12 generates enters in pulse dust collector 2 14 after dedusting, by pulse dust collector Two F2 of exhaust fan extraction discharge.

As shown in figure 3, plumule drying device includes plumule pipe bundle drier 15, the spout of plumule pipe bundle drier 15 with The germ outlet for mentioning fetus device is connected, and the discharge port of plumule pipe bundle drier 15 send pipe G3 by plumule airlock 16 and plumule wind It is connected, plumule wind send the discharge port of pipe G3 and the feed inlet of plumule Asta-3746 17 to be connected, the discharge port and embryo of plumule Asta-3746 17 The entrance of bud feed bin 18 is connected；The top outlet inlet of plumule Asta-3746 17 is connected with the entrance of plumule Asta-3746 exhaust fan F3, embryo The outlet of bud Asta-3746 exhaust fan F3 is connected by plumule return pipe G6 with the refluxing opening of plumule pipe bundle drier 15；Plumule tube bank The top outlet inlet of drying machine 15 is connected with the air inlet of drying machine Asta-3746 19, the top outlet inlet of drying machine Asta-3746 19 with The entrance of drying machine Asta-3746 exhaust fan F4 is connected, the outlet of drying machine Asta-3746 exhaust fan F4 and dry tail gas discharging pipe G7 phase Even.

Wet embryo bud enters the spout of plumule pipe bundle drier 15 from wet embryo bud efferent duct G1, steam from steam pipe G4 into Enter, is 7% from 15% moisture drying to moisture content by plumule moisture content, becomes condensed water after steam heat release, arranged from condensate pipe G5 Out；Dry plumule send pipe G3 into plumule wind by plumule airlock 16, is sent pipe G3 to be sent into plumule Asta-3746 17 by plumule wind and is unloaded Material enters plumule feed bin 18, then enters plumule packing scale 18a from the bottom discharge port of plumule feed bin 18 and is packaged into plumule finished product. Plumule wind send the road pipe G3 to cancel pulse dust collector, reduces equipment investment cost；The tail gas being discharged at the top of plumule Asta-3746 17 In contain a small amount of plumule, under the suction of plumule Asta-3746 exhaust fan F3, by plumule return pipe G6 return to plumule restrain drying It is recycled in machine 15, has not only improved plumule yield, but also reduce exhaust emissions, the air inlet of plumule pipe bundle drier 15 is made to become heat from cold wind Wind all recycles the heat in air draft, substantially reduces energy consumption.What is be discharged at the top of plumule pipe bundle drier 15 enters containing wet tail gas Drying machine Asta-3746 19 carries out separation dedusting, is entered scrubbing tower from drying machine Asta-3746 exhaust fan F4 extraction or is arranged to atmosphere It puts.

As shown in figure 4, enzymatic steeping device includes steeping tank 20 and corn transfer pot 22, the top of steeping tank 20 is equipped with leaching Steep tank material inlet, steeping tank enzyme preparation entrance and steeping tank refluxing opening, steeping tank material inlet and the hominy grits for mentioning fetus device Outlet is connected, and steeping tank enzyme preparation entrance is connected with the outlet of enzyme preparation pipe G8, and the bottom of steeping tank is equipped with steeping tank corn and goes out Mouth 20a and steeping tank corn pulp export 20b, and steeping tank corn outlet 20a is connected with the top feed mouth of corn transfer pot 22, beautiful The bottom discharge port of rice transfer pot 22 is connected with the entrance of corn delivery pump B2, and the outlet of corn delivery pump B2 and soaking corn are defeated Outlet pipe G11 is connected；Steeping tank corn pulp outlet 20b is connected with the entrance of steeping tank circulating pump B1, and steeping tank circulating pump B1's goes out Mouth is connected with the bottom feed inlet of sheathed heater 21；The top discharge mouth of sheathed heater 21 and dilute corn pulp efferent duct G9 and Steeping tank return pipe G10 is connected, and the outlet of dilute corn pulp efferent duct G9 is connected with the feed inlet of evaporator, steeping tank return pipe The outlet of G10 is connected with steeping tank refluxing opening.

Hominy grits after mentioning embryo is discharged from hominy grits efferent duct G2, into steeping tank；Enzyme preparation is arranged from enzyme preparation pipe G8 Also enter in steeping tank out, impregnated with hominy grits, the protein net of niblet is destroyed, the shallow lake wrapped up by protein net is made Powder particles separate out separates to be conducive to fiber and protein.Niblet after immersion is arranged from steeping tank corn outlet 20a Out, into corn transfer pot 22, the bent sieve 23 of dehydration is sent by corn delivery pump B2 with water flow.The corn pulp generated after immersion from Steeping tank corn pulp exports 20b discharge, is sent into indirect heating in sheathed heater 21 by steeping tank circulating pump B1, the jade after heating Rice & peanut milk a part is returned in steeping tank by steeping tank return pipe G10 and is recycled, and another part corn pulp is through dilute corn pulp efferent duct G9 is sent out, and fiber is carried out after it is concentrated by evaporator and pours slurry.Sheathed heater 21 using steam as heat source, put by steam Become condensed water after heat, is discharged from condensate pipe G5.The hominy grits after mentioning embryo is impregnated using enzyme preparation, soaking time can To control within 10h, soaking temperature is 28 ~ 32 DEG C, it is possible to reduce steam consumption, steeping tank quantity and volume will also subtract significantly It is few.

As shown in figure 5, crushing device includes degerming mill machine 26 and needle mill 27, the outlet of soaking corn efferent duct G11 with The feed inlet of the bent sieve 23 of dehydration is connected, and the material outlet for being dehydrated bent sieve 23 is connected with the entrance of corn surge tank 24, corn buffering The outlet of tank 24 is connected with the entrance of degerming mill machine 26, and the outlet of degerming mill machine 26 is connected with the entrance of needle mill 27, needle mill 27 outlet is connected with the feed inlet of storage tank 28 after mill, and the outlet of storage tank 28 is by expecting conveying after screening delivery pump B3 and mill after mill Pipe G15 is connected with the feed inlet of fiber wash device；The discharge outlet of the bent sieve 23 of dehydration is connected with water return tank 25, the bottom of water return tank 25 Portion outlet is connected by water return tank underflow pipe G13 with the top water inlet of corn transfer pot 22, and the overflow port of water return tank 25 passes through Water return tank overflow pipe G12 is connected with the water inlet of fiber wash device；The entrance of degerming mill machine 26 and needle mill 27 respectively with mistake Cheng Shuiguan G14 is connected.

From corn after the immersion that soaking corn efferent duct G11 is discharged, into bent 23 dehydration of sieve of dehydration, dewatered corn into Enter in corn surge tank 24 and keep in, carry out degerming mill subsequently into degerming mill machine 26, enters back into needle mill 27 and carry out fine grinding, fine grinding Storage tank 28 stores after material afterwards enters mill, is then pumped out by screening delivery pump B3, and material conveying tube G15 is sent into fiber and washes after grinding It washs device and carries out screening washing.The water isolated from the bent sieve 23 of dehydration, which enters in water return tank 25, to be collected, the overflow water of water return tank 25 It is flow to fiber wash device reuse through water return tank overflow pipe G12, the underflow of water return tank 25 is sent through water return tank underflow pipe G13 to corn Reuse in surge tank 24.The water needed in 27 attrition process of degerming mill machine 26 and needle mill is all from the process of this system generation Water is sent out after collection by process water pipe G14.Maize peel has been destroyed after mentioning embryo due to dry method, after enzymatic steeping, only through one Fine grinding can be carried out after grade degerming mill, compared with traditional handicraft, eliminates second-time breakage, and before the water flow in road is used for after recycling Road greatly reduces water consume, while greatly reducing sewage discharge.

The hood and crushing section exhaust blower F5 phase of 24 top of exhaust outlet and corn surge tank on 23 tops of the bent sieve of dehydration Even, tail gas is extracted out and is discharged by crushing section exhaust blower F5.

As shown in fig. 6, protein concentration device includes dilute seitan storage tank 29, dense seitan storage tank 32 and thickener 31, disk from The overflow port of scheming is connected by centrifuge overflow pipe G16 with the entrance of dilute seitan storage tank 29, and the bottom of dilute seitan storage tank 29 goes out Mouth is connected with the entrance of dilute seitan delivery pump B4, and the outlet of dilute seitan delivery pump B4 passes through dilute seitan delivery pipe G17 and thickener 31 feed inlet is connected, and the discharge port of thickener 31 is connected with the entrance of concentration discharging distributor 31a, and discharging distributor is concentrated The first outlet of 31a is connected by thickener discharge nozzle G19 with the entrance of dense seitan storage tank 32, and the bottom of dense seitan storage tank 32 goes out Mouth is connected with the entrance of dense seitan delivery pump B5, and the outlet of dense seitan delivery pump B5 is connected with dense seitan delivery pipe G18；It is concentrated out The second outlet of material distributor 31a is connected by thickener return pipe G20 with the refluxing opening of dilute seitan storage tank 29, concentration discharging point The third outlet of orchestration 31a is connected with protein concentration drainpipe G21；The water outlet of thickener 31 passes through protein concentration drainpipe G21 is connected with the entrance of process water pot 34, and the bottom of process water pot 34 is connected with the entrance of process water pump B6, process water pump B6's Outlet is connected with process water pipe G14.

Protein concentration is 15g/l from dilute seitan that disk plate centrifuge overflow goes out, and is entered by centrifuge overflow pipe G16 dilute Seitan storage tank 29 is pumped out by dilute seitan delivery pump B4, is sent into revolving filter 30 by dilute seitan delivery pipe G17 and is filtered, after filtering Dilute seitan enter thickener 31 and be concentrated, separated using albumen with the specific gravity difference of water, make protein concentration reach 90 ~ 110g/l.The concentrated discharging distributor 31a of dense seitan and thickener discharge nozzle G19, entrance flowed out from thickener discharge port is dense Seitan storage tank 32, then pumped out by dense seitan delivery pump B5, after the cooling of heat exchanger 1, flowed out into dense seitan delivery pipe G18. At the beginning of thickener 31 is run, the concentration of discharging is still low, and concentrated machine return pipe G20 returns to dilute seitan storage tank 29 and recycles.Thickener The draining that 31 operations or test-run a machine generate is discharged into process water pot 34 through protein concentration drainpipe G21, pumps out entrance by process water pump B6 Process water pipe G14 is sent from process water pipe G14 to 27 reuse of degerming mill machine 26 and needle mill.The impurity that revolving filter 30 is released Leak with thickener 31 enters concentration section bleeder pipe G30, returns to fiber wash device from concentration section bleeder pipe G30 and returns With.

As shown in fig. 7, albumen dewatering drying device includes vacuum drum filter 35, the outlet of dense seitan delivery pipe G18 It is connected with the feed inlet of vacuum drum filter 35, the discharge port of vacuum drum filter 35 is connected with wet albumen efferent duct G22, The outlet of wet albumen efferent duct G22 is connected with the feed inlet of albumen pipe bundle drier；The outlet at bottom of dilute seitan storage tank 29 also with The entrance that rotary drum wash water pumps B7 is connected, and the outlet that rotary drum wash water pumps B7 is inhaled by rotary vacuum filter backwash inlet pipe G23 and vacuum drum The backwash inlet of filter 35 is connected；The backwash outlets of vacuum drum filter 35 pass through rotary vacuum filter backwash outlets pipe G24 and dilute bran The entrance of matter storage tank 29 is connected.

Protein solution after concentration is after dense seitan delivery pipe G18 outflow, into being taken off in vacuum drum filter 35 Water, the filter cloth of hollow rotary drum outer surface attachment are filter medium, and the protein solution of 90 ~ 110g/l is dehydrated to aqueous 55 ~ 60%, It is discharged through wet albumen efferent duct G22, is dried into albumen pipe bundle drier.Rotary drum wash water pumps B7 will be in dilute seitan storage tank 29 The extraction of dilute seitan, the backwash inlet of vacuum drum filter 35 is sent into through rotary vacuum filter backwash inlet pipe G23, filter cloth is carried out clear It washes, the draining of filter wash cloth returns in dilute seitan storage tank 29 through rotary vacuum filter backwash outlets pipe G24, does not increase the processing of thickener 31 Amount.

The vacuum sucting port of vacuum drum filter 35 is connected with the entrance of vacuum tank 36, the outlet at bottom of vacuum tank 36 with The entrance of suction strainer water pump B8 is connected, and the outlet of suction strainer water pump B8 is connected with two G29 of one G28 of suction strainer outlet pipe and suction strainer outlet pipe, The outlet of one G28 of suction strainer outlet pipe is connected with the entrance of dilute seitan storage tank 29, the outlet of two G29 of suction strainer outlet pipe and process water pot 34 entrance is connected；The top exit of vacuum tank 36 is connected with the vacuum orifice of vacuum pump B9, and the water outlet of vacuum pump B9 passes through Vacuum water pump outlet pipe G27 is connected with the entrance of vacuum pump circulating water tank 37, and the outlet of vacuum pump circulating water tank 37 is followed with vacuumizing The entrance of ring water pump B10 is connected, the outlet of evacuation cycle water pump B10 by vacuum pump water inlet pipe G26 and vacuum pump B9 into Mouth of a river connection；The overflow port and discharge outlet of vacuum drum filter 35 are stored up by vacuum drum overflow drain tube G25 and dense seitan The entrance of tank 32 is connected.

Under the swabbing action of vacuum pump B9, albumen is intercepted on filter cloth, and liquid phase enters vacuum tank 36, suction strainer water pump B8 By the water extraction in vacuum tank 36, it is sent into reuse in dilute seitan storage tank 29 through one G28 of suction strainer outlet pipe, or through suction strainer outlet pipe Two G29 are sent into reuse in process water pot 34.The water outlet of water-ring vacuum pump B9 enters vacuum pump by vacuum water pump outlet pipe G27 and follows Ring water pot 37 is extracted out by evacuation cycle water pump B10, after the cooling of heat exchanger 2 38, is returned to very by vacuum pump water inlet pipe G26 The water inlet recycling of sky pump B9.The liquid phase of overflow and the discharge of vacuum drum filter 35 passes through vacuum drum overflow discharge Pipe G25 is returned in dense seitan storage tank 32 and is recycled.

The water inlet of heat exchanger 1 and heat exchanger 2 38 is connected with cooling tower downcomer G31, on water outlet and cooling tower Water pipe G32 is connected, and cooling water returns to heat exchanger recycling after cooling tower cools down.

The foregoing is merely the preferable possible embodiments of the present invention, non-therefore limitation patent protection model of the invention It encloses.In addition to the implementation, the present invention can also have other embodiments.All skills formed using equivalent substitution or equivalent transformation Art scheme, is all fallen within the protection domain of application claims.Technical characteristic of the present invention without description can be by or using now There is technology realization, details are not described herein.

Claims (10)

1. a kind of processing technology of corn, which is characterized in that in turn include the following steps: (1) being extracted plumule by mentioning fetus device Out, after plumule is by the drying of plumule drying device, it is packaged as plumule finished product；(2) the hominy grits after mentioning embryo enters enzymatic steeping dress It sets and mixes immersion with immersion enzyme；(3) the corn after impregnating enters crushing device and is crushed；(4) broken corn is carried out fine Dimension washing, fiber stay on sieve, and starch and albumen are washed till under sieve；(5) the starch in screenings is separated with albumen, point The albumen obtained from overflow enters protein concentration device and is concentrated, and is dehydrated and is done subsequently into albumen dewatering drying device After dry, albumen finished product is obtained；(6) starch purification is carried out to the starch milk that separating underflow obtains；To the starch milk being refining to obtain into Row dehydration improves concentration；(8) high-concentration starch milk is dried, obtains finished product of starch.

2. the processing technology of corn according to claim 1, it is characterised in that: to step, (2) soak is evaporated concentration Afterwards, dense corn pulp is obtained；Step (4) in fiber dehydration and drying after, by dense corn pulp be added fiber in, continue to be dried to obtain fibre Tie up finished product.

3. the processing technology of corn according to claim 1, it is characterised in that: step (1) in, corn is by bucket elevator One mentions to a high position, first flows through stone remover removal impurity, passes through pipe magnetic separator removal metal object, temporary subsequently into corn temporary storing bin It deposits, then is sent out by corn conveyer, after adding water to corn from watering machine, is sent into after being promoted by bucket elevator two quiet in profit water pot It sets, is then discharged by profit water pot conveyer, a high position is promoted to by bucket elevator three, is extracted plumule by germ separator, extract Solid plumule, then plumule finished product is dried to obtain by plumule drying device.

4. the processing technology of corn according to claim 1, it is characterised in that: step (1) described in plumule drying device packet Plumule pipe bundle drier is included, the spout of the plumule pipe bundle drier is connected with the germ outlet for mentioning fetus device, described The discharge port of plumule pipe bundle drier send pipe to be connected by plumule airlock with plumule wind, the plumule wind send the discharge port of pipe with The feed inlet of plumule Asta-3746 is connected, and the discharge port of the plumule Asta-3746 is connected with the entrance of plumule feed bin；The plumule is stopped The top outlet inlet of cron is connected with the entrance of plumule Asta-3746 exhaust fan, and the outlet of the plumule Asta-3746 exhaust fan passes through embryo Bud return pipe is connected with the refluxing opening of the plumule pipe bundle drier；The top outlet inlet of the plumule pipe bundle drier and drying The air inlet of machine Asta-3746 is connected, the entrance phase of the top outlet inlet and drying machine Asta-3746 exhaust fan of the drying machine Asta-3746 Even, the outlet of the drying machine Asta-3746 exhaust fan is connected with dry tail gas discharging pipe.

5. the processing technology of corn according to claim 1, it is characterised in that: step (2) described in enzymatic steeping device packet Steeping tank and corn transfer pot are included, the hominy grits and enzyme preparation after mentioning embryo respectively enter and carries out mixing immersion in steeping tank, impregnate Niblet afterwards enters in corn transfer pot, is pumped into the bent sieve of dehydration by corn conveying with water flow；Soak is recycled by steeping tank It is pumped into indirect heating in sheathed heater, corn pulp a part after heating, which returns in steeping tank, to be recycled, another part corn Progress fiber pours slurry after slurry enters evaporator concentration.

6. the processing technology of corn according to claim 1, it is characterised in that: step (3) in the crushing device include Degerming mill machine and needle mill, corn enters the bent sieve dehydration of dehydration after immersion, and dewatered corn, which enters in corn surge tank, keeps in, Degerming mill is carried out subsequently into degerming mill machine, needle mill is entered back into and carries out fine grinding, storage tank stores after the material after fine grinding enters mill, Then fiber wash device is pumped by screening conveying and carries out screening washing；The water separated out from the bent screening of dehydration enters water return tank, The overflow water of water return tank flow to fiber wash device reuse, and the reuse into corn surge tank is sent in the underflow of water return tank.

7. the processing technology of corn according to claim 1, it is characterised in that: (5) middle starch and albumen use disk to step Centrifuge is separated, and the albumen gone out from disk plate centrifuge overflow enters dilute seitan storage tank, is pumped out by the conveying of dilute seitan, through revolving It after rotary filter filtering, is concentrated into thickener, enters dense seitan storage tank after improving protein concentration, then defeated by dense seitan It send pump to pump out, after the cooling of heat exchanger one, albumen dewatering drying device is sent by dense seitan delivery pipe；The draining that thickener generates Into process water pot, degerming mill machine and needle mill reuse are pumped to by process water.

8. the processing technology of corn according to claim 1, it is characterised in that: step (5) in albumen dewatering drying device Including vacuum drum filter, dense albumen solution, which enters in vacuum drum filter, is dehydrated into wet seitan cake, wet seitan cake into Enter albumen pipe bundle drier to be dried；Rotary drum wash water pump extracts dilute seitan in dilute seitan storage tank out, is sent into vacuum drum and inhales The backwash inlet of filter, cleans filter cloth, and the draining of filter wash cloth returns in dilute seitan storage tank.

9. the processing technology of corn according to claim 8, it is characterised in that: under the swabbing action of vacuum pump, vacuum The liquid phase of rotary drum rotary vacuum filter enters vacuum tank, and suction strainer water pump extracts the water in vacuum tank out, is sent into dilute bran through suction strainer outlet pipe one Reuse in matter storage tank, or reuse in process water pot is sent into through suction strainer outlet pipe two；The water outlet of vacuum pump is discharged by vacuum pump Pipe enters vacuum pump circulating water tank, is gone out by vacuumizing recycled water pumping, after the cooling of heat exchanger two, is returned by vacuum pump water inlet pipe Water inlet to vacuum pump reuses；The overflow of vacuum drum filter flow in dense seitan storage tank and recycles.

10. the processing technology of corn according to claim 7, it is characterised in that: the step shallow lake that (6) middle separating underflow obtains Powder cream carries out starch purification using multistage washing swirler, and after multi-stage countercurrent washs, starch concentration is increased, chopped-off head washing The overflow of cyclone returns to disk plate centrifuge and separates again；(6) starch milk that step is refining to obtain also successively sizes mixing by starch milk, Liquefaction, saccharification, filtering, decoloration, ion exchange and evaporation, obtain glucose, filling by the progress of glucose filling mechanism, wherein mistake It filters obtained albumen and enters the recycling of albumen dewatering drying device.