CN106509946B - A kind of corn adds the production system of pulp fibres - Google Patents

A kind of corn adds the production system of pulp fibres Download PDF

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Publication number
CN106509946B
CN106509946B CN201610916391.0A CN201610916391A CN106509946B CN 106509946 B CN106509946 B CN 106509946B CN 201610916391 A CN201610916391 A CN 201610916391A CN 106509946 B CN106509946 B CN 106509946B
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China
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effect
outlet
heat exchanger
waste heat
entrance
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CN106509946A (en
Inventor
鲍大权
常寨成
黄威滨
郝祥生
胡明辉
王仁国
殷鹏
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Jiangsu Mai Ande Energy Saving Evaporation Equipment Co Ltd
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Jiangsu Mai Ande Energy Saving Evaporation Equipment Co Ltd
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs

Abstract

The present invention relates to the production systems that a kind of corn adds pulp fibres, it include the spiral dewaterer being dehydrated to zein fiber, the fiber outlet of spiral dewaterer is connect by being fed screw conveyor with the feed auger of first tube bundle drying machine, the outlet of first tube bundle drying machine passes through the first T-piece splitting valve returning charge, the discharge port of first T-piece splitting valve is connected by discharging spiral conveyor with the second returning charge screw conveyor, and the outlet of the second returning charge screw conveyor, the second discharge port of feed screw conveyor and first plus slurry valve outlet are connect with the first mixing machine；The outlet of first mixing machine is connect with the second feed auger of second tube bundle drying machine；Similarly the material after secondary drying enters third pipe bundle drier progress three-stage drying after secondary plus slurry, and controls returning charge ratio by third T-piece splitting valve, and discharge port and the corn of third T-piece splitting valve add pulp fibres production tube to connect.The production system of the present invention, steam and power consumption are low, drying efficiency height and good product quality.

Description

A kind of corn adds the production system of pulp fibres
Technical field
The present invention relates to a kind of production system of zein fiber, more particularly to a kind of corn adds the production system of pulp fibres, Belong to corn and adds pulp fibres production technical field.
Background technology
Cornstarch factory uses corn soaking, and wet-milling production technology, major product is starch, byproduct have corn protein powder, Maize germ, zein fiber, corn steep liquor.Zein fiber and corn steep liquor are mixed together and can obtain corn and add pulp fibres, include rich Rich protein is good protein feed.
Corn adds pulp fibres to be to obtain corn steep liquor and broken zein fiber combination drying after corn soaking Feed, since corn plus pulp fibres protein content are 18% or more, it has also become the widely applied one kind of domestic and international Feedstuff Enterprises Novel protein feed raw material, commonly used to Substitution for Soybean Meal, fish meal in livestock and poultry and aquatic product matched feed, and can be with Direct-fed Ruminant.
Traditional corn adds pulp fibres production system to be that zein fiber is first dried to moisture 12% hereinafter, adding corn again Drying is starched, or is dried together after fiber and corn steep liquor are mixed.Such technique has the following deficiencies：(1) zein fiber exists It is oven-dried after being less than 12% to moisture content, can form a shell on surface, be added corn steep liquor at this time, dense corn steep liquor is not allowed It easily penetrates into inside zein fiber, is only bonded in the surface of zein fiber, zein fiber is made to be easy to agglomerating caking, product quality Difference.(2) add pulp fibres to carry out disposable drying in place corn, steam consumption is big, and drying efficiency is low, is unfavorable for the ladder of energy Grade utilizes.(3) in order to which humidity is discharged as quickly as possible, the exhausting amount of pipe bundle drier is bigger, and the aperture of fresh air air door also compares It is larger so that the exhaust temperature of pipe bundle drier is low, high containing air capacity, reduces the quality of tail gas, is unfavorable for carrying out tail gas Heat recovery.（4）Cornstarch factory at present, corn steep liquor cannot be all added in zein fiber, can only add 70% or so Corn steep liquor, remaining corn steep liquor can only take out or be discharged into sewage farm.Because of current technique, all corn steep liquors are added, 1 Energy consumption is very high, and corn is caused to add pulp fibres cost too high.2 corns add the color of pulp fibres very deep, and market is difficult to receive.
Invention content
It is an object of the present invention to overcome problems of the prior art, the production that a kind of corn adds pulp fibres is provided System, low energy consumption, drying efficiency height and good product quality.
In order to solve the above technical problems, a kind of corn of the invention adds the production system of pulp fibres, including to cornstarch The spiral dewaterer that factory's zein fiber is dehydrated, the outlet of corn steep liquor concentration systems are connected with the total adding tube of dense corn steep liquor, institute The Dehydrated Corn fiber outlet for stating spiral dewaterer is connected with the feed inlet of feed screw conveyor, the feed screw conveyor The first discharge port connect with the entrance of the first feed auger of first tube bundle drying machine, the discharging of the first tube bundle drying machine Mouth is connected with the entrance of the first T-piece splitting valve, the returning charge mouth of first T-piece splitting valve and the first returning charge screw conveyor Lower inlet connects, and the top exit of the first returning charge screw conveyor is connect with the entrance of first feed auger；Institute The head inlet of the discharge port and discharging spiral conveyor of stating the first T-piece splitting valve connects, in the discharging spiral conveyor Portion outlet is connected with the lower inlet of the second returning charge screw conveyor, the top exit of the second returning charge screw conveyor and the The feed inlet of one mixing machine connects；The second discharge port also feed inlet with first mixing machine of the feed screw conveyor Connection, the dense total adding tube of corn steep liquor are also connect with the feed inlet of first mixing machine through first plus slurry valve；Described The discharge port of one mixing machine is connect with the entrance of the second feed auger of second tube bundle drying machine；The second tube bundle drying machine Discharge port is connected with the entrance of the second T-piece splitting valve, the returning charge mouth of second T-piece splitting valve and the discharging helical feed The front entrance connection of machine, the discharge port of second T-piece splitting valve connect with the rear entry of the discharging spiral conveyor It connects；The caudal end egress of the discharging spiral conveyor is connect with the lower inlet of third returning charge screw conveyor, and the third is returned The top exit of material screw conveyor is connect with the feed inlet of the second mixing machine, and the dense total adding tube of corn steep liquor is through second plus starches Valve is also connect with the feed inlet of second mixing machine；The third of the discharge port and third pipe bundle drier of second mixing machine The entrance of feed auger connects；The discharge port of the third pipe bundle drier is connected with the entrance of third T-piece splitting valve, described The returning charge mouth of third T-piece splitting valve is connect with the centre entrance of the third returning charge screw conveyor, the third threeway sub-material The discharge port of valve adds pulp fibres production tube to connect with corn.
Compared with the existing technology, the present invention achieves following advantageous effect：1. cornstarch factory zein fiber is first separated into Dehydrated Corn fiber and dehydration liquid, the water content of Dehydrated Corn fiber is 61~63%, and Dehydrated Corn fiber is first sent into first Pipe bundle drier carries out level-one drying and controls returning charge ratio, and the discharging moisture control of level-one drying 15~30%, dry by level-one It is carried out once plus is starched and is uniformly mixed by the first mixing machine with dense corn steep liquor afterwards, be sent into second tube bundle drying after mixing Machine carries out secondary drying and simultaneously controls returning charge ratio, and the discharging moisture control of secondary drying is after 15~30%, secondary drying with dense jade Rice ＆ peanut milk carries out secondary plus slurry and is uniformly mixed by the second mixing machine, is sent into third pipe bundle drier after mixing and carries out three Grade is dry and controls returning charge ratio, and the material of three-stage drying discharging adds pulp fibres, the discharging moisture control of three-stage drying as corn 10~12%, into packing shop.2. compared with traditional technique is using the more disposable drying of pipe bundle driers parallel connection, this Invention is using drying of more than three-level connecting.In order to ensure that the moisture content of discharging meets the requirements, baked strength compares for disposable drying Greatly, a large amount of fresh airs must be used in order to which humidity is discharged, steam consumption and power consumption are all bigger, tail gas poor quality.The present invention The moisture content of preceding two-stage discharging is relatively high, without largely using fresh air, tail gas quality good；Although the moisture content of final stage discharging compares It is low, but due to the prebake of two-stage before having already passed through, again without very greatly, fresh air consumption is also far below the baked strength of final stage Traditional handicraft.The technique volume drying of the present invention is efficient, and steam is low with power consumption, is returned conducive to waste heat is carried out respectively to tail gas It receives, cascade utilization.It is dried 3. material is ecto-entad, forms a shell after appearance drying, dense corn steep liquor is made to be not easy to ooze Enter inside zein fiber, be only bonded in the surface of zein fiber, zein fiber is made to be easy to agglomerating caking, it is more unfavorable after starching to add In the evaporation of material internal moisture.The present invention is carried out repeatedly plus is starched at 15~30% times using multistage drying, material moisture content control, Add slurry under crust state after avoiding material appearance overdrying, is conducive to dense corn steep liquor and penetrates into inside zein fiber, improve Corn adds the quality of pulp fibres finished product, is also beneficial to material and is uniformly dried.4. the preceding two-stage of the present invention is prebake, tail gas In dust it is relatively clean less, the air weight content in tail gas is 30~50%, and vapour content is high, temperature is high, improves The quality of tube bundle drying machine tail gas is conducive to carry out waste heat recovery.
As an improvement of the present invention, the offgas outlet at the top of first and second pipe bundle drier respectively with the first and second picogram The air outlet of the air inlet connection of dragon, first and second cyclone connects with the absorption tower air inlet in the middle part of waste heat absorption tower respectively It connects, the offgas outlet at the top of the third pipe bundle drier is connect with the air inlet of third cyclone, the outlet air of third cyclone Mouth is connect with the scrubbing tower air inlet in the middle part of exhaust gas washing tower.What first tube bundle drying machine, second tube bundle drying machine were discharged is high Quality tail gas, dust content is low, and for temperature at 90~96 DEG C, air weight content is 30~50%, vapour content height, temperature Height enters waste heat absorption tower recycling heat after the first cyclone, the second cyclone dedusting.Third pipe bundle drier discharge be Low quality tail gas, dust content is high, and for temperature at 75~90 DEG C, air weight content is 60~70%, is washed into exhaust gas after dedusting Heat is recycled after washing tower washing.The present invention carries out classification recovery waste heat to high quality tail gas and low quality tail gas, with strong points, remaining Heat utilization efficiency is high.
As a further improvement on the present invention, the absorption tower exhaust outlet at the top of the waste heat absorption tower and absorption tower exhaust blower Entrance connection, the inner cavity top on the waste heat absorption tower is equipped with packing layer, and the top of described filler layer is equipped with cloth liquid disk, described The bottom on waste heat absorption tower is equipped with water-collecting tray, discharge outlet and the waste heat flash tank in the middle part of waste heat flash tank of the pan bottom of catchmenting Entrance is connected, and the waste heat flash tank steam (vapor) outlet of the waste heat flash drum overhead is connected with flash-off steam pipe, the waste heat flash distillation The flash tank discharge outlet of pot bottom is connected with the entrance of absorption tower circulating pump, and the outlet of the absorption tower circulating pump passes through absorption tower Circulation pipe is connected with the water supply pipe of the Bu Ye disk center.The high quality that first tube bundle drying machine, second tube bundle drying machine are discharged Tail gas enters from absorption tower air inlet in waste heat absorption tower, flows upwardly through packing layer, drenches following of with cloth liquid disk in packing layer Ring water carries out hot and humid area and is washed, and exhaust gas is extracted out by absorption tower exhaust blower, and the recirculated water after temperature raising, which is fallen into, to catchment In disk, waste heat flash tank is flowed under the action of negative pressure, is flashed in waste heat flash tank and is entered flash distillation as 85 ± 5 DEG C of flash-off steams Steam pipe is used for later process, and the condensed water of waste heat flash tank bottom is recycled pumped and returned to waste heat by absorption tower to be absorbed Circulated sprinkling is removed in the cloth liquid disk of tower.
As a further improvement on the present invention, first, second and third pipe bundle drier tube bank condensed water row mouth jointly with Condensate water pot entrance connection in the middle part of condensate water pot, the condensate water pot top are equipped with condensate water pot steam (vapor) outlet, the condensation Water pot steam (vapor) outlet is connect with the flash-off steam pipe, the condensate water pot discharge outlet of the condensate water pot bottom and condensate pump Entrance connects, and the outlet of the condensate pump and the softened water feed pipe of boiler room connect.Each pipe bundle drier tube bank discharge Steam condensate (SC) is very clean, and the flash-off steam generated after condensed water pot flash distillation also enters flash-off steam pipe and makes for later process It is sent to boiler room with the water pump extraction that is condensed of, remaining condensed water, it can be directly as boiler replenishing water.
As a further improvement on the present invention, the inner cavity top of the exhaust gas washing tower is equipped with spray tube, the spray tube It is connected with the outlet of scrubbing tower spray pump, the entrance of the scrubbing tower spray pump is connected with spray sink, the exhaust gas washing tower The exhaust gas washing tower discharge outlet of bottom is directed at the spray sink；Exhaust gas washing tower exhaust outlet at the top of the exhaust gas washing tower with Waste heat imitates the waste heat effect heat exchanger air inlet at the top of heat exchanger shell pass and is connected, the waste heat effect of waste heat effect heat exchanger shell pass lower part The entrance that heat exchanger exhaust outlet imitates exhaust blower with waste heat is connected；The waste heat effect heat exchanger of waste heat effect heat exchanger shell pass lower part is dirty Condensate discharge mouth is connected with Sewage Disposal；The feed separation mouth of waste heat effect heat exchanger lower part passes through communicating pipe and waste heat It imitates separator to be connected, the top of the waste heat effect separator is equipped with waste heat and imitates separator exhaust outlet, waste heat effect heat exchanger bottom The waste heat effect separator material outlet of waste heat effect heat exchanger material outlet and the waste heat effect separator bottom in portion jointly with it is useless The entrance of thermal effect circulating pump connects, and the entrance of the waste heat effect circulating pump is also connected with the outlet of an effect material efferent duct；It is described The waste heat effect heat exchanger material inlet that heat exchanger is imitated in the outlet of waste heat effect circulating pump with the waste heat is connect, the waste heat effect cycle Material efferent duct is also imitated by waste heat and is connected with the entrance of dense corn steep liquor holding vessel in the outlet of pump；The dense corn steep liquor holding vessel Bottom is connected with the entrance of screw pump, and the outlet of the screw pump is connected with the dense total adding tube of corn steep liquor.Third tube bank is dry The low quality tail gas of dry machine discharge after third cyclone dedusting, into exhaust gas washing tower in the middle part of scrubbing tower air inlet, to It during upper flowing, is washed by the recirculated water that spray tube sprays, washings are fallen into spray sink, are washed tower and are sprayed pumping Go out to be sent to spray tube circulated sprinkling.Tail gas after washing is from the exhaust gas washing tower exhaust outlet discharge at the top of exhaust gas washing tower, useless Under the suction of thermal effect exhaust blower, low quality tail gas enters the waste heat effect heat exchanger air inlet at the top of waste heat effect heat exchanger shell pass, Dense corn steep liquor is imitated during flowing downward to the waste heat of tube side to heat, the waste heat effect from waste heat effect heat exchanger shell pass lower part The dirty condensate liquid of heat exchanger dirt condensate discharge mouth discharge discharges after entering Sewage Disposal processing.Waste heat imitates exchanger base The dense jade of effect that waste heat imitates dense corn steep liquor, the waste heat of waste heat effect separator bottom imitates dense corn steep liquor and comes from an effect material efferent duct Rice ＆ peanut milk imitates cycle pumped by waste heat jointly, is sent to waste heat effect heat exchanger material inlet and carries out circulating-heating, the waste heat after heating Imitate dense corn steep liquor from enter communicating pipe waste heat effect separator in detached, moisture evaporation as 65 ± 5 DEG C waste heat imitate steam From waste heat effect separator exhaust outlet discharge, the waste heat after concentration imitates dense corn steep liquor and enters waste heat from waste heat effect separator material outlet Effect cycle pump circulation, the waste heat that part waste heat imitates circulating-pump outlet are imitated dense corn steep liquor from waste heat effect material efferent duct discharge, are entered Dense corn steep liquor holding vessel storage is sent into the dense total adding tube of corn steep liquor by screw rod pumped and is restrained for second tube bundle drying machine and third Drying machine adds slurry to use, and the weight concentration of dense corn steep liquor is 31%~35% in dense corn steep liquor holding vessel.
As a further improvement on the present invention, the outlet of the flash-off steam pipe and the effect at the top of an effect heat exchanger shell pass Heat exchanger air inlet is connected, and an effect heat exchanger exhaust outlet of effect heat exchanger shell pass lower part is connected with pumping manifold；It is described The feed separation mouth of one effect heat exchanger lower part is connected by communicating pipe with an effect separator, and the top of the effect separator is equipped with One effect heat exchanger material outlet of one effect separator exhaust outlet, the effect exchanger base imitates separator bottom with described one One effect separator material outlet is connect with the entrance of an effect circulating pump jointly, and the entrance of the effect circulating pump also imitates materials with two The outlet of efferent duct is connected；The effect heat exchanger material inlet that heat exchanger is imitated in the outlet of the one effect circulating pump with described one connects It connects, the outlet of the effect circulating pump is also connected with the effect material efferent duct.Under the swabbing action of pumping manifold, waste heat 85 ± 5 DEG C of flash-off steams that flash tank and condensate water pot flash off enter from flash-off steam pipe at the top of an effect heat exchanger shell pass One effect heat exchanger air inlet heats a dense corn steep liquor of effect of tube side during flowing downward, an effect heat exchanger bottom The dense corn steep liquor of one effect in portion, the dense corn steep liquor of an effect of an effect separator bottom and the two dense corns of effect come from two effect material efferent ducts Slurry recycles pumped by an effect jointly, is sent to an effect heat exchanger material inlet and carries out circulating-heating, the dense corn of effect after heating It is detached in starching from communicating pipe into an effect separator, moisture evaporation imitates separator as 72 ± 5 DEG C of two effect steam from one Exhaust outlet is discharged, and the dense corn steep liquor of effect after concentration enters an effect from an effect separator material outlet and recycles pump circulation, part one The entrance conveying that circulating pump is imitated to waste heat is discharged from an effect material efferent duct for the one dense corn steep liquor of effect of effect circulating-pump outlet, under Primary concentration, a weight concentration for imitating dense corn steep liquor in material efferent duct 17g is 25%~27%.The highest flash-off steam of temperature with The dense corn steep liquor of effect for having been subjected to three-level concentration exchanges heat, it is ensured that concentrated effect.
As a further improvement on the present invention, described one two effects at the top of separator exhaust outlet and two effect heat exchanger shell pass are imitated Heat exchanger air inlet is connected, and an effect heat exchanger condensate drain outlet of effect heat exchanger shell pass bottom exchanges heat with two effect Two effect heat exchanger condensing water inlet connections in the middle part of device shell side, two effect heat exchanger exhaust outlets of two effect heat exchanger shell pass lower part It is connected with the pumping manifold；The feed separation mouth of two effect heat exchanger lower part is connected by communicating pipe with two effect separators, The top of the two effects separator is equipped with two effect separator exhaust outlets, and two effect heat exchanger materials of the two effects exchanger base go out Mouth is connect with the entrance of two effect circulating pumps jointly with two effect separator material outlets of the two effects separator bottom, two effect The entrance of circulating pump is also connected with the outlet of triple effect material efferent duct；Heat exchanger is imitated with described two in the outlet of the two effects circulating pump Two effect heat exchanger material inlets connection, it is described two effect circulating pump outlets also with it is described two effect material efferent duct be connected.It is taking out Under the swabbing action of gas manifold, two effect steam being discharged from an effect separator exhaust outlet enter two at the top of two effect heat exchanger shell pass Heat exchanger air inlet is imitated, the two dense corn steep liquors of effect of tube side are heated during flowing downward, after two effect steam heat releases Continue to flow downward as two effect condensed waters.It is discharged from an effect heat exchanger condensate drain outlet of an effect heat exchanger shell pass lower part One effect condensed water enters two effect heat exchanger condensing water inlets in the middle part of two effect heat exchanger shell pass, common after being mixed with two effect condensed waters It flows downward and continues to the dense corn steep liquor heating of two effects.The dense corn steep liquor of two effects of two effect exchanger bases, two imitate separator bottoms The dense corn steep liquor of two effects and the dense corn steep liquor of triple effect come from triple effect material efferent duct recycle pumped by two effects jointly, are sent to two effects and change Hot device material inlet carries out circulating-heating, and the two dense corn steep liquors of effect after heating, which are imitated from communicating pipe into two in separators, to be divided From, moisture evaporation as 65 ± 5 DEG C of triple effect steam from two effect separator exhaust outlets discharges, two dense corn steep liquors of effect after concentration from Two effect separator material outlets recycle pump circulations into two effects, and the two dense corn steep liquors of effect that circulating-pump outlet is imitated in part two imitate objects from two The entrance conveying to an effect circulating pump is discharged in material efferent duct, is concentrated into next stage, dense corn steep liquor in two effect material efferent ducts Weight concentration is 18%~20%.The higher two effect steam of temperature exchanges heat with the two dense corn steep liquors of effect for having been subjected to two-stage concentration, Concentrated effect is good.
As a further improvement on the present invention, the two effect separator exhaust outlet and the triple effect at the top of three-effect heat exchanger shell side Heat exchanger air inlet is connected, and two effect heat exchanger condensate drain outlets of two effect heat exchanger shell pass bottom exchange heat with the triple effect Three-effect heat exchanger condensing water inlet connection in the middle part of device shell side, the three-effect heat exchanger exhaust outlet of three-effect heat exchanger shell side lower part It is connected with the pumping manifold；The feed separation mouth of the three-effect heat exchanger lower part is connected by communicating pipe with triple effect separator, The top of the triple effect separator is equipped with triple effect separator exhaust outlet, and the three-effect heat exchanger material of the three-effect heat exchanger bottom goes out Mouth is connect with the entrance of triple effect cycle pump jointly with the triple effect separator material outlet of the triple effect separator bottom, cornstarch Factory's corn steep liquor is connected with the thin pulp feed inlet of triple effect separator lower part；The outlet of the triple effect cycle pump is changed with the triple effect The three-effect heat exchanger material inlet of hot device connects, and the outlet of the triple effect cycle pump is also connected with the triple effect material efferent duct. Under the swabbing action of pumping manifold, the triple effect steam being discharged from two effect separator exhaust outlets enters at the top of three-effect heat exchanger shell side Three-effect heat exchanger air inlet, the dense corn steep liquor of the triple effect of tube side is heated during flowing downward, triple effect steam is put Continue to flow downward as triple effect condensed water after heat.The two effect heat exchanger condensate drain outlet rows from two effect heat exchanger shell pass lower parts The two effect condensed waters gone out enter the three-effect heat exchanger condensing water inlet in the middle part of three-effect heat exchanger shell side, after being mixed with triple effect condensed water It flows downward jointly and continues to heat the dense corn steep liquor of triple effect.The weight concentration of cornstarch factory corn steep liquor is 7%~9%, into three The thin pulp feed inlet for imitating separator lower part, mixes with the dense corn steep liquor of triple effect, three-effect heat exchanger bottom and triple effect separator bottom The dense corn steep liquor of triple effect by triple effect cycle pumped, is sent to three-effect heat exchanger material inlet and carries out circulating-heating, after heating jointly The dense corn steep liquor of triple effect is detached from entering communicating pipe in triple effect separator, moisture evaporation as 50 ± 5 DEG C quadruple effect steam from Triple effect separator exhaust outlet is discharged；The dense corn steep liquor of triple effect after concentration enters triple effect cycle pump from triple effect separator material outlet and follows Ring, the dense corn steep liquor of triple effect of part triple effect cycle pump discharge are discharged defeated to the entrance of two effect circulating pumps from triple effect material efferent duct It send, is concentrated into next stage, the weight concentration of dense corn steep liquor is 11%~13% in triple effect material efferent duct.The lower triple effect of temperature Steam exchanges heat with the dense corn steep liquor of triple effect for carrying out primary concentration, and concentrated effect is good.
As a further improvement on the present invention, the triple effect separator exhaust outlet is connected with the pumping manifold, the pumping The outlet of gas manifold is connected with the condenser air inlet on condenser shell side top, the condenser exhaust gas of condenser shell side lower part Mouth is connected with the entrance of vacuum pump；The entrance of the condenser condensate drain outlet and Condensed water collection tank of condenser shell side bottom Connection, the top of the Condensed water collection tank are connected with the pumping manifold, bottom and the condensate delivery pump of the Condensed water collection tank Entrance be connected, the condensate delivery pump outlet respectively pass through valve with it is described spray sink water supply pipe and Sewage Disposal Connection；The three-effect heat exchanger condensate drain outlet of three-effect heat exchanger shell side bottom and the entrance of the Condensed water collection tank connect It connects.Under the swabbing action of vacuum pump, an effect heat exchanger exhaust outlet, two effect heat exchanger exhaust outlets, three-effect heat exchanger exhaust outlet row The quadruple effect steam of incoagulable gas and triple effect separator the exhaust outlet discharge gone out is entered by being evacuated manifold on condenser shell side The condenser air inlet in portion cools down from top to bottom along shell fluid flow and by the cooling water of tube side, indirectly finally from condenser exhaust gas Mouth escapes and enter vacuum pump；Cooling water enters from condenser cooling water entrance, cold from condenser from bottom to top along tube side flow But water out is discharged.The condensed water of the condenser condensate drain outlet discharge of condenser shell side lower part enters Condensed water collection tank, and three The condensed water for imitating the three-effect heat exchanger condensate drain outlet discharge of heat exchanger shell pass bottom also enters Condensed water collection tank, Condensed water collection The incoagulable gas of tank top is sucked away by gas manifold.
As a further improvement on the present invention, the dehydration liquid outlet of the spiral dewaterer passes through return duct and cornstarch Workshop is connected, and the corn adds the outlet of pulp fibres production tube to be connected with packing shop.Zero-emission may be implemented in the present invention.
Description of the drawings
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-limiting the present invention.
Fig. 1 is the flow chart for the production system that corn of the present invention adds pulp fibres.
In figure：1. spiral dewaterer；1a. is dehydrated liquid outlet；1b. Dehydrated Corn fiber outlets；2. being fed screw conveyor； 3. first tube bundle drying machine；The first feed augers of 3a.；The first T-piece splitting valves of 3b.；3c. the first returning charge screw conveyors；3d. First cyclone；4. second tube bundle drying machine；The second feed augers of 4a.；The second T-piece splitting valves of 4b.；4c. the second returning charge spirals Conveyer；The second cyclones of 4d.；The first mixing machines of 4e.；4f. first plus slurry valve；5. third pipe bundle drier；5a. thirds are fed Spiral；5b. third T-piece splitting valves；5c. third returning charge screw conveyors；5d. third cyclones；The second mixing machines of 5e.；5f. Second adds slurry valve；6. discharging spiral conveyor；7. waste heat absorption tower；The absorption towers 7a. air inlet；The absorption towers 7b. exhaust outlet；7c. Cloth liquid disk；7d. packing layers；7e. water-collecting trays；The absorption towers 7f. exhaust blower；The absorption towers 7g. circulating pump；8. waste heat flash tank；8a. is useless Heat-lightening steaming pot entrance；8b. waste heat flash tank steam (vapor) outlets；8c. flash tank discharge outlet；9. condensate water pot；9a. condensate pumps；12. Exhaust gas washing tower；12a. scrubbing tower air inlets；12b. scrubbing tower exhaust outlets；12c. scrubbing tower discharge outlet；12d. scrubbing towers spray Pump；12e. sprays sink；13. waste heat imitates heat exchanger；13a. waste heat imitates heat exchanger material inlet；13b. waste heat imitates heat exchanger material Outlet；13c. waste heat imitates heat exchanger air inlet；13d. waste heat imitates heat exchanger exhaust outlet；13e. waste heat imitates heat exchanger dirt condensate liquid row Put mouth；13f. waste heat imitates circulating pump；13g. waste heat imitates material efferent duct；13h. waste heat imitates exhaust blower；14. waste heat imitates separator； 14a. waste heat imitates separator exhaust outlet；14b. waste heat imitates separator material outlet；15. dense corn steep liquor holding vessel；16. screw pump； 17. an effect heat exchanger；17a. mono- imitates heat exchanger material inlet；17b. mono- imitates heat exchanger material outlet；17c. mono- imitate heat exchanger into Gas port；17d. an effect heat exchanger exhaust outlet；17e. mono- imitates heat exchanger condensate drain outlet；17f. mono- imitates circulating pump；17g. mono- is imitated Material efferent duct；18. an effect separator；18a. mono- imitates separator exhaust outlet；18b. mono- imitates separator material outlet；19. two effects Heat exchanger；19a. bis- imitates heat exchanger material inlet；19b. bis- imitates heat exchanger material outlet；19c. bis- imitates heat exchanger air inlet； 19d. bis- imitates heat exchanger exhaust outlet；19e. bis- imitates heat exchanger condensate drain outlet；19f. bis- imitates circulating pump；It is defeated that 19g. bis- imitates material Outlet pipe；19h. bis- imitates heat exchanger condensing water inlet；20. two effect separators；20a. bis- imitates separator exhaust outlet；The effect separation of 20b. bis- Device material outlet；21. three-effect heat exchanger；21a. three-effect heat exchanger material inlets；21b. three-effect heat exchanger material outlets；21c. tri- Imitate heat exchanger air inlet；21d. three-effect heat exchanger exhaust outlets；21e. three-effect heat exchanger condensate drain outlets；21f. triple effect cycles Pump；21g. triple effect material efferent ducts；21h. three-effect heat exchanger condensing water inlets；22. triple effect separator；22a. triple effect separators Exhaust outlet；22b. triple effect separator material outlets；22c. thin pulp feed inlets；23. condenser；23a. condenser cooling water entrances； 23b. condenser cooling waters export；23c. condenser air inlets；23d. condenser exhaust gas mouths；23e. condenser condensed water eliminations Mouthful；24. Condensed water collection tank；24a. condensate delivery pumps；25. vacuum pump；G1. the total adding tube of dense corn steep liquor；G2. corn adds slurry fine Tie up production tube；G3. flash-off steam pipe；G4. it is evacuated manifold.
Specific implementation mode
As shown in Figure 1, corn of the present invention adds the production system of pulp fibres to include being taken off to cornstarch factory zein fiber The dehydration liquid outlet 1a of the spiral dewaterer 1 of water, spiral dewaterer 1 is connected with cornstarch workshop, the dehydration of spiral dewaterer 1 Zein fiber exports 1b and is connected with the feed inlet for being fed screw conveyor 2, is fed the first discharge port and first of screw conveyor 2 The entrance of first feed auger 3a of pipe bundle drier 3 connects, the discharge port of first tube bundle drying machine 3 and the first T-piece splitting valve The entrance of 3b is connected, and the returning charge mouth of the first T-piece splitting valve 3b is connect with the lower inlet of the first returning charge screw conveyor 3c, the The top exit of one returning charge screw conveyor 3c is connect with the entrance of the first feed auger 3a；The discharging of first T-piece splitting valve 3b Mouth is connect with the head inlet of discharging spiral conveyor 6, the centre exit of discharging spiral conveyor 6 and the second returning charge helical feed The lower inlet of machine 4c is connected, and the top exit of the second returning charge screw conveyor 4c is connect with the feed inlet of the first mixing machine 4e； Second discharge port of feed screw conveyor 2 is also connect with the feed inlet of the first mixing machine 4e, the dense total adding tube G1's of corn steep liquor It is also connect with the feed inlet of the first mixing machine 4e through first plus slurry valve 4f；The discharge port of first mixing machine 4e is dried with second tube bundle The entrance of second feed auger 4a of machine 4 connects.
The discharge port of second tube bundle drying machine 4 is connected with the entrance of the second T-piece splitting valve 4b, the second T-piece splitting valve 4b Returning charge mouth connect with the front entrance of discharging spiral conveyor 6, the discharge port of the second T-piece splitting valve 4b and discharging spiral transferring The rear entry of machine 6 is sent to connect.
The caudal end egress of discharging spiral conveyor 6 is connect with the lower inlet of third returning charge screw conveyor 5c, and third is returned The top exit of material screw conveyor 5c is connect with the feed inlet of the second mixing machine 5e, and the dense total adding tube G1 of corn steep liquor adds through second Slurry valve 5f is also connect with the feed inlet of the second mixing machine 5e；The of the discharge port of second mixing machine 5e and third pipe bundle drier 5 The entrance of three feed auger 5a connects.
The discharge port of third pipe bundle drier 5 is connected with the entrance of third T-piece splitting valve 5b, third T-piece splitting valve 5b Returning charge mouth connect with the centre entrance of third returning charge screw conveyor 5c, the discharge port of third T-piece splitting valve 5b adds with corn The G2 connections of pulp fibres production tube, the corn that corn adds pulp fibres production tube G2 to be discharged add pulp fibres to enter packing shop to crush Packaging.
Corn of the present invention adds the work step of the production system of pulp fibres as follows successively：
(1) cornstarch factory zein fiber is separated into Dehydrated Corn fiber and dehydration liquid, Dehydrated Corn through spiral dewaterer 1 The water content of fiber is 61~63%.
(2) concentration is carried out to the cornstarch factory corn steep liquor after immersion to become dense corn steep liquor and into dense corn steep liquor always add Add pipe G1, above-mentioned Dehydrated Corn fiber enters feed screw conveyor 2 from Dehydrated Corn fiber outlet 1b, a part of from feed spiral shell The first discharge port for revolving conveyer 2 enters the first feed auger 3a, by the first feed auger 3a be sent into first tube bundle drying machine 3 into Row level-one is dried.
(3) the zein fiber after level-one is dried is discharged from the discharge port of first tube bundle drying machine 3, by the first threeway sub-material Valve 3b controls returning charge ratio, and the zein fiber of level-one returning charge returns to entering for the first feed auger 3a through the first returning charge screw conveyor 3c Mouthful, the head inlet that the zein fiber that level-one discharges enters discharging spiral conveyor 6 is delivered to discharging spiral conveyor 6 backward Centre exit is discharged, and the discharging moisture control of level-one drying is 15~30%.
(4) the zein fiber of level-one discharging is after the discharge of the centre exit of discharging spiral conveyor 6, through the second returning charge spiral Conveyer 4c is sent to the feed inlet of the first mixing machine 4e；Step (2) Dehydrated Corn fiber another part from feed screw conveyor 2 the second discharge port discharge also enters the feed inlet of the first mixing machine 4e, and the dense corn steep liquor of step (2) is through first plus slurry valve 4f Into the feed inlet of the first mixing machine 4e, after mixing through the first mixing machine 4e, level-one adds the zein fiber of slurry to enter second Feed auger 4a is sent into second tube bundle drying machine 4 by the second feed auger 4a and carries out secondary drying.
(5) the zein fiber after secondary drying is discharged from the discharge port of second tube bundle drying machine 4, by the second threeway sub-material Valve 4b controls returning charge ratio, and the zein fiber of two level returning charge enters the front entrance of discharging spiral conveyor 6, the jade with level-one discharging Rice fiber is delivered to the centre exit discharge of discharging spiral conveyor 6 backward jointly, subsequently into the second returning charge screw conveyor The lower inlet of 4c；The rear entry that the zein fiber of two level discharging enters discharging spiral conveyor 6 is delivered to discharging spiral shell backward The caudal end egress discharge of conveyer 6 is revolved, the discharging moisture control of secondary drying is 15~30%.
(6) the zein fiber of two level discharging is after the discharge of the caudal end egress of discharging spiral conveyor 6, into third returning charge spiral shell The lower inlet of conveyer 5c is revolved, and is sent to the feed inlet of the second mixing machine 5e by third returning charge screw conveyor 5c；Step (2) dense corn steep liquor also enters the feed inlet of the second mixing machine 5e through second plus slurry valve 5f, is uniformly mixed through the second mixing machine 5e Afterwards, two level adds the zein fiber of slurry to enter third feed auger 5a, by third feed auger 5a be sent into third pipe bundle drier 5 into Row three-stage drying.
(7) the zein fiber after three-stage drying is discharged from the discharge port of third pipe bundle drier 5, by third threeway sub-material Valve 5b controls returning charge ratio, and the zein fiber of three-level returning charge enters the second charging aperture of third returning charge screw conveyor 5c, by third Returning charge screw conveyor 5c returns to the feed inlet of the second mixing machine 5e；The zein fiber of three-level discharging adds pulp fibres as corn Be discharged into corn from corn plus pulp fibres finished product mouth and add pulp fibres production tube G2, the discharging moisture control of three-stage drying 10~ 12%, crush packaging into packing shop.
First tube bundle drying machine 3, the top of second tube bundle drying machine 4 offgas outlet respectively with the first cyclone 3d, second The air inlet of cyclone 4d connects, the first cyclone 3d, the second cyclone 4d air outlet respectively with 7 middle part of waste heat absorption tower The offgas outlet of absorption tower air inlet 7a connections, 5 top of third pipe bundle drier is connect with the air inlet of third cyclone 5d, the The air outlet of three cyclone 5d is connect with the scrubbing tower air inlet 12a at 12 middle part of exhaust gas washing tower.
The tail gas that first tube bundle drying machine 3, second tube bundle drying machine 4 are discharged is respectively through the first cyclone 3d, the second picogram Enter the absorption tower air inlet 7a at 7 middle part of waste heat absorption tower after imperial 4d dedustings jointly, the tail gas warp that third pipe bundle drier 5 is discharged Enter the scrubbing tower air inlet 12a at 12 middle part of exhaust gas washing tower after third cyclone 5d dedustings.First tube bundle drying machine 3, second What pipe bundle drier 4 was discharged is high quality tail gas, and dust content is low, temperature at 90~96 DEG C, air weight content is 30~ 50%, vapour content is high, temperature is high, and entering waste heat absorption tower 7 after the first cyclone 3d, the second cyclone 4d dedustings recycles Heat.What third pipe bundle drier 5 was discharged is low quality tail gas, and dust content is high, and temperature is at 75~90 DEG C, air weight content It is 60~70%, enters after dedusting after exhaust gas washing tower 12 washs and recycle heat.
The absorption tower exhaust outlet 7b at 7 top of waste heat absorption tower is connect with the entrance of absorption tower exhaust blower 7f, waste heat absorption tower 7 Inner cavity top be equipped with packing layer 7d, the top of packing layer 7d is equipped with cloth liquid disk 7c, and the bottom on waste heat absorption tower 7 is equipped with water-collecting tray The discharge outlet of the bottom 7e, water-collecting tray 7e is connected with the waste heat flash tank entrance 8a at 8 middle part of waste heat flash tank, and waste heat flash tank 8 pushes up The waste heat flash tank steam (vapor) outlet 8b in portion is connected with flash-off steam pipe G3, the flash tank discharge outlet 8c of 8 bottom of waste heat flash tank with The entrance of absorption tower circulating pump 7g is connected, and the outlet of absorption tower circulating pump 7g passes through absorption tower circulation pipe and the centers cloth liquid disk 7c Water supply pipe is connected.
The high quality tail gas that first tube bundle drying machine 3, second tube bundle drying machine 4 are discharged enters useless from absorption tower air inlet 7a In heat absorption tower 7, packing layer 7d is flowed upwardly through, the recirculated water is drenched with cloth liquid disk 7c in packing layer 7d and carries out hot and humid area simultaneously It is washed, exhaust gas is extracted out by absorption tower exhaust blower 7f, and the recirculated water after temperature increases is fallen into water-collecting tray 7e, in suction function Lower inflow waste heat flash tank 8 is flashed in waste heat flash tank 8 after entering the G3 confessions of flash-off steam pipe as 85 ± 5 DEG C of flash-off steams Procedure uses, and the condensed water of 8 bottom of waste heat flash tank is extracted out by absorption tower circulating pump 7g and returns to the cloth on waste heat absorption tower 7 Circulated sprinkling is removed in liquid disk 7c.
The steam condensation of the tube bank discharge of first tube bundle drying machine 3, second tube bundle drying machine 4 and third pipe bundle drier 5 Water enters in condensate water pot 9 jointly, enters flash-off steam pipe G3, another part after a part of condensed water flash as flash-off steam Boiler room is sent in the condensed water water pump 9a extraction that is condensed.The steam condensate (SC) of each pipe bundle drier tube bank discharge is very clean, warp The flash-off steam that condensate water pot 9 generates after flashing also enters flash-off steam pipe G3 and is used for later process, remaining condensed water quilt Boiler room is sent in condensate pump 9a extractions, can be directly as boiler replenishing water.
The inner cavity top of exhaust gas washing tower 12 is equipped with spray tube, and scrubbing tower air inlet 12a is located at below spray tube, spray tube It is connected with the outlet of scrubbing tower spray pump 12d, the entrance of scrubbing tower spray pump 12d is connected with spray sink 12e, exhaust gas washing tower The scrubbing tower discharge outlet 12c alignment spray sinks 12e of 12 bottoms；The scrubbing tower exhaust outlet 12b at the top of exhaust gas washing tower 12 with it is useless Waste heat effect heat exchanger air inlet 13c at the top of 13 shell side of thermal effect heat exchanger is connected, and waste heat imitates the waste heat of 13 shell side lower part of heat exchanger Effect heat exchanger exhaust outlet 13d is connected with the entrance of waste heat effect exhaust blower 13h；The waste heat effect of 13 shell side lower part of waste heat effect heat exchanger is changed Hot device dirt condensate discharge mouth 13e is connected with Sewage Disposal；The feed separation mouth of 13 lower part of waste heat effect heat exchanger passes through connection Pipe is connected with waste heat effect separator 14, and the top that waste heat imitates separator 14 is equipped with waste heat effect separator exhaust outlet 14a, and waste heat effect is changed The waste heat effect heat exchanger material outlet 13b of 13 bottom of hot device and the waste heat of 14 bottom of waste heat effect separator imitate separator material outlet 14b is connect with the entrance of waste heat effect circulating pump 13f jointly, and the entrance that waste heat imitates circulating pump 13f also imitates material efferent duct 17g with one Outlet be connected；Waste heat is imitated the outlet of circulating pump 13f and is connected with the waste heat effect heat exchanger material inlet 13a of waste heat effect heat exchanger 13 It connects, waste heat imitates the outlet of circulating pump 13f also by the entrance phase of waste heat effect material efferent duct 13g and dense corn steep liquor holding vessel 15 Even；The bottom of dense corn steep liquor holding vessel 15 is connected with the entrance of screw pump 16, and the outlet of screw pump 16 is always added with dense corn steep liquor Pipe G1 is connected.
The low quality tail gas that third pipe bundle drier 5 is discharged is after third cyclone 5d dedustings, into exhaust gas washing tower 12 The scrubbing tower air inlet 12a at middle part is washed, washings are fallen into during flowing up by the recirculated water that spray tube sprays It sprays in sink 12e, spray tube circulated sprinkling is sent in washed tower spray pump 12d extractions.Tail gas after washing is washed from exhaust gas The scrubbing tower exhaust outlet 12b discharges at 12 top of tower, under the suction of waste heat effect exhaust blower 13h, low quality tail gas enters waste heat effect Waste heat at the top of 13 shell side of heat exchanger imitates heat exchanger air inlet 13c, and dense jade is imitated to the waste heat of tube side during flowing downward Rice ＆ peanut milk is heated, the dirt being discharged from the waste heat effect heat exchanger dirt condensate discharge mouth 13e of 13 shell side lower part of waste heat effect heat exchanger Condensate liquid discharges after entering Sewage Disposal processing.
The waste heat of 13 bottom of waste heat effect heat exchanger imitates dense corn steep liquor, the waste heat of 14 bottom of waste heat effect separator imitates dense corn steep liquor And the dense corn steep liquor of effect come from an effect material efferent duct 17g is sent to waste heat effect heat exchange jointly by waste heat effect circulating pump 13f extractions Device material inlet 13a enters waste heat effect heat exchanger 13 and carries out circulating-heating, waste heat after heating imitate dense corn steep liquor from communicating pipe into Enter and detached in waste heat effect separator 14, moisture evaporation imitates steam from waste heat effect separator exhaust as 65 ± 5 DEG C of waste heat Mouth 14a discharges, the waste heat after concentration imitate dense corn steep liquor and enter waste heat effect circulating pump 13f from waste heat effect separator material outlet 14b Cycle, the waste heat that part waste heat imitates the outlets circulating pump 13f imitate dense corn steep liquor from waste heat effect material efferent duct 13g discharges, and entrance is dense Corn steep liquor holding vessel 15 stores, and the dense total adding tube G1 of corn steep liquor is sent into for second tube bundle drying machine 4 and the by the extraction of screw pump 16 Three pipe bundle driers 5 plus slurry use, and the weight concentration of dense corn steep liquor is 31%~35% in dense corn steep liquor holding vessel 15.
The outlet of flash-off steam pipe G3 is connected with the effect heat exchanger air inlet 17c at the top of effect 17 shell side of heat exchanger, and one One effect heat exchanger exhaust outlet 17d of 17 shell side lower part of effect heat exchanger is connected with pumping manifold G4；The object of one 17 lower part of effect heat exchanger Material separating opening is connected by communicating pipe with an effect separator 18, and the top of an effect separator 18 is equipped with an effect separator exhaust outlet An effect separator material of 18a, an effect heat exchanger material outlet 17b of 17 bottom of effect heat exchanger and 18 bottom of effect separator Outlet 18b is connect with the entrance of an effect circulating pump 17f jointly, and the entrance of an effect circulating pump 17f also imitates material efferent duct 19g with two Outlet be connected；The outlet of one effect circulating pump 17f is connect with an effect heat exchanger material inlet 17a of an effect heat exchanger 17, an effect The outlet of circulating pump 17f is also connected with an effect material efferent duct 17g.
Under the swabbing action of pumping manifold G4, flash off 85 ± 5 DEG C flash distillations of waste heat flash tank 8 and condensate water pot 9 Steam enters the effect heat exchanger air inlet 17c at the top of effect 17 shell side of heat exchanger from flash-off steam pipe G3, what is flowed downward A dense corn steep liquor of effect of tube side is heated in the process, the dense corn steep liquor of an effect, the effect separator of 17 bottom of effect heat exchanger The dense corn steep liquor of an effect of 18 bottoms and the two dense corn steep liquors of effect come from two effect material efferent duct 19g imitate circulating pump 17f by one jointly Extraction is sent to an effect heat exchanger material inlet 17a and carries out circulating-heating into an effect heat exchanger 17, the dense corn of effect after heating Slurry is imitated in separator 18 from communicating pipe into one and is detached, and moisture evaporation detaches as 72 ± 5 DEG C of two effect steam from an effect The 18a discharges of device exhaust outlet, the dense corn steep liquor of effect after concentration enter an effect circulating pump 17f from an effect separator material outlet 18b Cycle, a dense corn steep liquor of effect of the outlets effect circulating pump 17f of part one, which is discharged from an effect material efferent duct 17g to waste heat, imitates circulating pump The entrance of 13f conveys, and is concentrated into next stage, and the weight concentration of dense corn steep liquor is 25%~27% in an effect material efferent duct 17g. The highest flash-off steam of temperature exchanges heat with the dense corn steep liquor of effect for having been subjected to three-level concentration, it is ensured that concentrated effect.
One effect separator exhaust outlet 18a is connected with two effect heat exchanger air inlet 19c at the top of two effect 19 shell sides of heat exchanger, and one Two effects in the middle part of an effect heat exchanger condensate drain outlet 17e and two effect 19 shell sides of heat exchanger for 17 shell side bottom of heat exchanger are imitated to exchange heat The 19h connections of device condensing water inlet, two effect heat exchanger exhaust outlet 19d and the pumping manifold G4 phases of two 19 shell side lower parts of effect heat exchanger Even；The feed separation mouth of two 19 lower parts of effect heat exchanger is connected by communicating pipe with two effect separators 20, the top of two effect separators 20 Portion is equipped with two effect separator exhaust outlet 20a, two effect heat exchanger material outlet 19b of two 19 bottoms of effect heat exchanger and two effect separators Two effect separator material outlet 20b of 20 bottoms are connect with the entrance of two effect circulating pump 19f jointly, and two effect circulating pump 19f's enters Mouth is also connected with the outlet of triple effect material efferent duct 21g；The outlet of two effect circulating pump 19f and two effects of two effect heat exchangers 19 exchange heat The outlet of the 19a connections of device material inlet, two effect circulating pump 19f is also connected with two effect material efferent duct 19g.
Under the swabbing action of pumping manifold G4, two effect steam being discharged from an effect separator exhaust outlet 18a enter two effects Two effect heat exchanger air inlet 19c at the top of 19 shell side of heat exchanger, to the two dense corn steep liquors of effect of tube side during flowing downward It is heated, becomes two effect condensed waters after two effect steam heat releases and continue to flow downward.One from a 17 shell side lower part of effect heat exchanger The effect condensed water for imitating the 17e discharges of heat exchanger condensate drain outlet is cold into two effect heat exchangers in the middle part of two effect 19 shell sides of heat exchanger Condensate entrance 19h flows downward with two effect condensed waters and continues to heat the two dense corn steep liquors of effect jointly.Two 19 bottoms of effect heat exchanger The dense corn steep liquor of two effects, the dense corn steep liquor of two effects of two 20 bottoms of effect separator and the dense jade of triple effect from triple effect material efferent duct 21g Rice ＆ peanut milk by two effect circulating pump 19f extractions, is sent to two effect heat exchanger material inlet 19a and is recycled into two effect heat exchangers 19 jointly Heating, the two dense corn steep liquors of effect after heating, which are imitated from communicating pipe into two in separators 20, to be detached, and moisture evaporation becomes 65 ± 5 DEG C triple effect steam from two effect separator exhaust outlet 20a discharges, the two dense corn steep liquors of effect after concentration go out from two effect separator materials Mouth 20b enters two effect circulating pump 19f and recycles, and part two is imitated the two dense corn steep liquors of effect that circulating pump 19f is exported and exported from two effect materials The entrance conveying to an effect circulating pump 17f is discharged in pipe 19g, is concentrated into next stage, dense corn steep liquor in two effect material efferent duct 19g Weight concentration be 18%~20%.The higher two effect steam of temperature is changed with the two dense corn steep liquors of effect for having been subjected to two-stage concentration Heat, concentrated effect are good.
Two effect separator exhaust outlet 20a are connected with the three-effect heat exchanger air inlet 21c at the top of 21 shell side of three-effect heat exchanger, and two The two effect heat exchanger condensate drain outlet 19e for imitating 19 shell side bottom of heat exchanger exchange heat with the triple effect in the middle part of 21 shell side of three-effect heat exchanger The 21h connections of device condensing water inlet, three-effect heat exchanger exhaust outlet 21d and the pumping manifold G4 phases of 21 shell side lower part of three-effect heat exchanger Even；The feed separation mouth of 21 lower part of three-effect heat exchanger is connected by communicating pipe with triple effect separator 22, the top of triple effect separator 22 Portion is equipped with triple effect separator exhaust outlet 22a, three-effect heat exchanger material outlet 21b and the triple effect separator of 21 bottom of three-effect heat exchanger The entrance that the triple effect separator material outlet 22b of 22 bottoms pumps 21f with triple effect cycle jointly is connect, and spiral dewaterer 1 is isolated Dehydration liquid return to cornstarch workshop.
Cornstarch factory corn steep liquor is connected with the thin pulp feed inlet 22c of 22 lower part of triple effect separator；Triple effect cycle pumps 21f's Outlet connect with the three-effect heat exchanger material inlet 21a of three-effect heat exchanger 21, triple effect cycle pump 21f outlet also with triple effect material Efferent duct 21g is connected.
Under the swabbing action of pumping manifold G4, the triple effect steam being discharged from two effect separator exhaust outlet 20a enters triple effect Three-effect heat exchanger air inlet 21c at the top of 21 shell side of heat exchanger, to the dense corn steep liquor of the triple effect of tube side during flowing downward It is heated, continues to flow downward as triple effect condensed water after triple effect steam heat release.Two from two 19 shell side lower parts of effect heat exchanger The three-effect heat exchanger that two effect condensed waters of effect heat exchanger condensate drain outlet 19e discharges enter in the middle part of 21 shell side of three-effect heat exchanger is cold Condensate entrance 21h flows downward with triple effect condensed water and continues to heat the dense corn steep liquor of triple effect jointly.
Cornstarch factory corn steep liquor enters the thin pulp feed inlet 22c of 22 lower part of triple effect separator, mixed with the dense corn steep liquor of triple effect It closes, the dense corn steep liquor of triple effect of 22 bottom of 21 bottom of three-effect heat exchanger and triple effect separator is sent jointly by triple effect cycle pump 21f extractions Circulating-heating is carried out toward three-effect heat exchanger material inlet 21a, the dense corn steep liquor of triple effect after heating is detached from triple effect is entered communicating pipe It is detached in device 22, moisture evaporation is discharged as 50 ± 5 DEG C of quadruple effect steam from triple effect separator exhaust outlet 22a；After concentration The dense corn steep liquor of triple effect from triple effect separator material outlet 22b enter triple effect cycle pump 21f cycle, part triple effect cycle pump 21f The entrance conveying to two effect circulating pump 19f is discharged from triple effect material efferent duct 21g for the dense corn steep liquor of triple effect of outlet, into next stage It concentrates, the weight concentration of dense corn steep liquor is 11%~13% in triple effect material efferent duct 21g.The lower triple effect steam of temperature and progress The dense corn steep liquor of triple effect of primary concentration exchanges heat, and concentrated effect is good.
Triple effect separator exhaust outlet 22a is connected with pumping manifold G4, in the outlet and 23 shell side of condenser of pumping manifold G4 The condenser air inlet 23c in portion is connected, the entrance phase of the condenser exhaust gas mouth 23d and vacuum pump 25 of 23 shell side lower part of condenser Even；The condenser condensate drain outlet 23e of 23 shell side bottom of condenser is connect with the entrance of Condensed water collection tank 24, Condensed water collection tank 24 top is connected with pumping manifold G4, and the bottom of Condensed water collection tank 24 is connected with the entrance of condensate delivery pump 24a, condensate conveying The outlet of pump 24a is connect by valve with the water supply pipe of spray sink 12e and Sewage Disposal respectively；21 shell side of three-effect heat exchanger The three-effect heat exchanger condensate drain outlet 21e of bottom is connect with the entrance of Condensed water collection tank 24.
Under the swabbing action of vacuum pump 25, an effect heat exchanger exhaust outlet 17d, two effect heat exchanger exhaust outlet 19d, triple effect change The incoagulable gas of hot device exhaust outlet 21d discharges and the quadruple effect steam of triple effect separator exhaust outlet 22a discharges are total by being evacuated Pipe G4 enters the condenser air inlet 23c on 23 shell side top of condenser, from top to bottom along shell fluid flow and by the cooling water of tube side It is indirectly cooling, finally vacuum pump 25 is escaped and enter from condenser exhaust gas mouth 23d；Cooling water is from condenser cooling water entrance 23a Into from bottom to top along tube side flow, from condenser cooling water outlet 23b discharges.The condenser of 23 shell side lower part of condenser is cold The condensed water of condensate floss hole 23e discharges enters Condensed water collection tank 24, and the three-effect heat exchanger of 21 shell side bottom of three-effect heat exchanger is cold The condensed water of condensate floss hole 21e discharges also enters Condensed water collection tank 24, and the incoagulable gas at 24 top of Condensed water collection tank passes through Gas manifold is sucked away.The condensed water that Condensed water collection tank 24 is collected contains a certain amount of COD（It is characterized with COD organic Object content）, need to discharge after Sewage Disposal is handled, the present invention backs into spray sink 12e, washs as exhaust gas The spray washing water of tower 12 realizes that ladder utilizes.
The foregoing is merely the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model It encloses.In addition to the implementation, the present invention can also have other embodiment, such as dry and add slurry that three-level or more may be used, All technical solutions formed using equivalent substitution or equivalent transformation, are all fallen within the protection domain of application claims.The present invention is not Technical characteristic through description can realize that details are not described herein by or using the prior art.

Claims (8)

  1. Include the spiral dehydration being dehydrated to cornstarch factory zein fiber 1. a kind of corn adds the production system of pulp fibres Machine, the outlet of corn steep liquor concentration systems are connected with the total adding tube of dense corn steep liquor, it is characterised in that：The dehydration of the spiral dewaterer Zein fiber is exported to be connected with the feed inlet of feed screw conveyor, the first discharge port and first of the feed screw conveyor The entrance of first feed auger of pipe bundle drier connects, the discharge port and the first T-piece splitting valve of the first tube bundle drying machine Entrance be connected, the returning charge mouth of first T-piece splitting valve is connect with the lower inlet of the first returning charge screw conveyor, described The top exit of first returning charge screw conveyor is connect with the entrance of first feed auger；First T-piece splitting valve Discharge port and the head inlet of discharging spiral conveyor connect, the centre exit of the discharging spiral conveyor and the second returning charge spiral shell The lower inlet for revolving conveyer is connected, and the top exit of the second returning charge screw conveyor and the feed inlet of the first mixing machine connect It connects；Second discharge port of the feed screw conveyor is also connect with the feed inlet of first mixing machine, the dense corn steep liquor Total adding tube is also connect with the feed inlet of first mixing machine through first plus slurry valve；The discharge port of first mixing machine with The entrance of second feed auger of second tube bundle drying machine connects；The discharge port of the second tube bundle drying machine and the two or three reduction of fractions to a common denominator Expect that the entrance of valve is connected, the returning charge mouth of second T-piece splitting valve is connect with the front entrance of the discharging spiral conveyor, The discharge port of second T-piece splitting valve is connect with the rear entry of the discharging spiral conveyor；The discharging helical feed The caudal end egress of machine is connect with the lower inlet of third returning charge screw conveyor, is gone out at the top of the third returning charge screw conveyor Mouthful connect with the feed inlet of the second mixing machine, the dense total adding tube of corn steep liquor add through second starch valve also with second mixing machine Feed inlet connection；The discharge port of second mixing machine is connect with the entrance of the third feed auger of third pipe bundle drier； The discharge port of the third pipe bundle drier is connected with the entrance of third T-piece splitting valve, the returning charge of the third T-piece splitting valve Mouth is connect with the centre entrance of the third returning charge screw conveyor, and discharge port and the corn of the third T-piece splitting valve add slurry Fibrous finished product pipe connects；Offgas outlet at the top of first and second pipe bundle drier air inlet with the first and second cyclone respectively Connection, the air outlet of first and second cyclone are connect with the absorption tower air inlet in the middle part of waste heat absorption tower respectively, the third Offgas outlet at the top of pipe bundle drier is connect with the air inlet of third cyclone, and air outlet and the exhaust gas of third cyclone wash Scrubbing tower air inlet connection in the middle part of tower；The inner cavity top of the exhaust gas washing tower is equipped with spray tube, the spray tube and washing The outlet of tower spray pump is connected, and the entrance of the scrubbing tower spray pump is connected with spray sink, the exhaust gas washing tower bottom Exhaust gas washing tower discharge outlet is directed at the spray sink；Exhaust gas washing tower exhaust outlet at the top of the exhaust gas washing tower is imitated with waste heat Waste heat effect heat exchanger air inlet at the top of heat exchanger shell pass is connected, and the waste heat of waste heat effect heat exchanger shell pass lower part imitates heat exchanger The entrance that exhaust outlet imitates exhaust blower with waste heat is connected；The waste heat of waste heat effect heat exchanger shell pass lower part imitates heat exchanger dirt condensate liquid Floss hole is connected with Sewage Disposal；The feed separation mouth of waste heat effect heat exchanger lower part is detached by communicating pipe with waste heat effect Device is connected, and the top of the waste heat effect separator is equipped with waste heat and imitates separator exhaust outlet, and the waste heat imitates the useless of exchanger base The waste heat effect separator material outlet that thermal effect heat exchanger material outlet imitates separator bottom with the waste heat is followed with waste heat effect jointly The entrance of the entrance connection of ring pump, the waste heat effect circulating pump is also connected with the outlet of an effect material efferent duct；The waste heat effect The waste heat effect heat exchanger material inlet that heat exchanger is imitated in the outlet of circulating pump with the waste heat is connect, and the waste heat effect circulating pump goes out Mouth also imitates material efferent duct by waste heat and is connected with the entrance of dense corn steep liquor holding vessel；The bottom of the dense corn steep liquor holding vessel with The entrance of screw pump is connected, and the outlet of the screw pump is connected with the dense total adding tube of corn steep liquor.
  2. 2. corn according to claim 1 adds the production system of pulp fibres, it is characterised in that：At the top of the waste heat absorption tower Absorption tower exhaust outlet connect with the entrance of absorption tower exhaust blower, the inner cavity top on the waste heat absorption tower is equipped with packing layer, institute The top for stating packing layer is equipped with cloth liquid disk, and the bottom on the waste heat absorption tower is equipped with water-collecting tray, the draining of the pan bottom of catchmenting Mouth is connected with the waste heat flash tank entrance in the middle part of waste heat flash tank, the waste heat flash tank steam (vapor) outlet of the waste heat flash drum overhead It is connected with flash-off steam pipe, the flash tank discharge outlet of the waste heat flash tank bottom is connected with the entrance of absorption tower circulating pump, institute The outlet for stating absorption tower circulating pump is connected by absorption tower circulation pipe with the water supply pipe of the Bu Ye disk center.
  3. 3. corn according to claim 2 adds the production system of pulp fibres, it is characterised in that：First, second and third tube bank Tube bank condensed water row's mouth of drying machine is connect with the condensate water pot entrance in the middle part of condensate water pot jointly, is set at the top of the condensate water pot There are condensate water pot steam (vapor) outlet, the condensate water pot steam (vapor) outlet to be connect with the flash-off steam pipe, the condensate water pot bottom Condensate water pot discharge outlet and the entrance of condensate pump connect, the outlet of the condensate pump and the softened water feed pipe of boiler room Connection.
  4. 4. corn according to claim 2 adds the production system of pulp fibres, it is characterised in that：The flash-off steam pipe goes out Mouth is connected with the effect heat exchanger air inlet at the top of an effect heat exchanger shell pass, and an effect of effect heat exchanger shell pass lower part exchanges heat Device exhaust outlet is connected with pumping manifold；The feed separation mouth of one effect heat exchanger lower part passes through communicating pipe and an effect separator phase Even, the top of the effect separator is equipped with an effect separator exhaust outlet, an effect heat exchange implements of the effect exchanger base Material outlet is connect with the entrance of an effect circulating pump jointly with an effect separator material outlet of the effect separator bottom, described The entrance of one effect circulating pump is also connected with the outlet of two effect material efferent ducts；The outlet of the one effect circulating pump is changed with an effect One effect heat exchanger material inlet connection of hot device, the outlet of the effect circulating pump are also connected with the effect material efferent duct.
  5. 5. corn according to claim 4 adds the production system of pulp fibres, it is characterised in that：The one effect separator exhaust Mouth is connected with two effect heat exchanger air inlets at the top of two effect heat exchanger shell pass, and an effect of effect heat exchanger shell pass bottom exchanges heat Device condensate drain outlet is connect with two effect heat exchanger condensing water inlets in the middle part of the two effects heat exchanger shell pass, the two effects heat exchange Two effect heat exchanger exhaust outlets of device shell side lower part are connected with the pumping manifold；The feed separation mouth of two effect heat exchanger lower part It is connected with two effect separators by communicating pipe, the top of the two effects separator is equipped with two effect separator exhaust outlets, two effect Two effect heat exchanger material outlets of exchanger base with described two imitate two effect separator material outlets of separator bottom jointly with The entrance of the entrance connection of two effect circulating pumps, the two effects circulating pump is also connected with the outlet of triple effect material efferent duct；Described two The outlet of effect circulating pump is connect with two effect heat exchanger material inlets of the two effects heat exchanger, and the outlet of the two effects circulating pump is also It is connected with the two effects material efferent duct.
  6. 6. corn according to claim 5 adds the production system of pulp fibres, it is characterised in that：The two effects separator exhaust Mouth is connected with the three-effect heat exchanger air inlet at the top of three-effect heat exchanger shell side, two effect heat exchange of two effect heat exchanger shell pass bottom Device condensate drain outlet is connect with the three-effect heat exchanger condensing water inlet in the middle part of the three-effect heat exchanger shell side, the triple effect heat exchange The three-effect heat exchanger exhaust outlet of device shell side lower part is connected with the pumping manifold；The feed separation mouth of the three-effect heat exchanger lower part It is connected with triple effect separator by communicating pipe, the top of the triple effect separator is equipped with triple effect separator exhaust outlet, the triple effect The triple effect separator material outlet of the three-effect heat exchanger material outlet of exchanger base and the triple effect separator bottom jointly with The entrance connection of triple effect cycle pump, cornstarch factory corn steep liquor are connected with the thin pulp feed inlet of triple effect separator lower part；Institute The outlet for stating triple effect cycle pump is connect with the three-effect heat exchanger material inlet of the three-effect heat exchanger, and the triple effect cycle pump goes out Mouth is also connected with the triple effect material efferent duct.
  7. 7. corn according to claim 6 adds the production system of pulp fibres, it is characterised in that：The triple effect separator exhaust Mouth is connected with the pumping manifold, and the outlet of the pumping manifold is connected with the condenser air inlet on condenser shell side top, institute The condenser exhaust gas mouth for stating condenser shell side lower part is connected with the entrance of vacuum pump；The condenser of condenser shell side bottom is cold Condensate floss hole is connect with the entrance of Condensed water collection tank, and the top of the Condensed water collection tank is connected with the pumping manifold, described The bottom of Condensed water collection tank is connected with the entrance of condensate delivery pump, the outlet of the condensate delivery pump respectively by valve with it is described Spray water supply pipe and the Sewage Disposal connection of sink；The three-effect heat exchanger condensed water elimination of three-effect heat exchanger shell side bottom Mouth is connect with the entrance of the Condensed water collection tank.
  8. 8. corn according to any one of claim 1 to 7 adds the production system of pulp fibres, it is characterised in that：The spiral shell The dehydration liquid outlet of rotation dewaterer is connected by return duct with cornstarch workshop, and the corn adds the outlet of pulp fibres production tube It is connected with packing shop.
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CN110089626A (en) * 2019-05-20 2019-08-06 绥化象屿金谷生化科技有限公司 A kind of method of two-period form technique production whitewashing maize peel

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CN101097115A (en) * 2007-06-26 2008-01-02 山东泓洲化工机械有限公司 Dead steam reclaiming method and equipment thereof
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