CN106036965B - A kind of production system of DDGS feeds - Google Patents

Abstract

The present invention relates to a kind of production system of DDGS feeds, including being given up the seperator that mash pipe is connected with Alcohol Plant, the wet alcohol slag outlet of seperator is connected by being fed conveying worm with the feed auger of the first pipe bundle drier, the outlet of first pipe bundle drier passes through the first T-piece splitting valve returning charge, the discharging opening of first T-piece splitting valve is connected by discharging spiral conveyor with the second returning charge conveying worm, and the outlet of the outlet of the second returning charge conveying worm, the second discharging opening of feed conveying worm and first plus slurry valve is connected with the first mixer；The outlet of first mixer is connected with the second feed auger of the second pipe bundle drier；Similarly the material after secondary drying enters the 3rd pipe bundle drier progress three-stage drying after secondary plus slurry, and controls returning charge ratio by the 3rd T-piece splitting valve, and the discharging opening of the 3rd T-piece splitting valve is connected with DDGS production tubes.The production system of DDGS feeds of the present invention, steam and power consumption are low, drying efficiency height and good product quality.

Description

A kind of production system of DDGS feeds

Technical field

The present invention relates to a kind of production system of feed, more particularly to a kind of production system of DDGS feeds, belong to DDGS Feed production technology field.

Background technology

Alcohol Plant produces the raw materials such as alcohol generally use corn and carries out liquid state fermentation, and starch is converted to ethanol and titanium dioxide Carbon, other nutritional ingredients such as protein, fat, fiber are stayed in mash.Simultaneously because the effect of microorganism, egg in mash White matter, B family vitamin and amino acid content increased than corn, and contain the unknown somatomedin generated in fermentation, It is good protein feed.

DDGS（Distillers Dried Grains with Solubles）, be by cleaner liquid dry concentration after again with Filter residue combination drying and the feed obtained.Because DDGS protein content is more than 26%, it has also become domestic and international Feed Manufacturing The wide variety of a kind of novel protein feed raw material of enterprise, commonly used to Substitution for Soybean Meal, fish in livestock and poultry and aquatic product matched feed Powder, adding proportion reach as high as 30%, and can be with Direct-fed ruminant.

Traditional DDGS feed production systems are：Alcohol Plant's mash that gives up is isolated into alcohol slag and clear liquid, alcohol slag is entered Row drying.To improve yield, when alcohol slag is dried, it is in parallel using more pipe bundle driers, every pipe bundle drier Alcohol slag is disposably dried to moisture content up to less than 12%, then dried alcohol slag carried out using the concentrate of clear liquid Add slurry.Following weak point be present in such technique：(1) alcohol slag, can shape on surface after being oven-dried and being less than 12% to moisture content Into a shell, now carry out plus slurry, concentrate are not easily penetrated into inside alcohol slag, are simply bonded in the surface of alcohol slag, make Alcohol slag is easy to agglomerating caking, poor product quality.(2) disposable drying is carried out to alcohol slag in place, steam consumption is big, does Dry efficiency is low, is unfavorable for the cascade utilization of energy.(3) in order to discharge humidity, the exhausting amount ratio of pipe bundle drier as quickly as possible Larger, the aperture of fresh air air door is also bigger so that the exhaust temperature of pipe bundle drier is low, high containing air capacity, reduces tail gas Quality, be unfavorable for tail gas carry out heat recovery.

The content of the invention

It is an object of the present invention to overcome problems of the prior art, there is provided a kind of production system of DDGS feeds, Energy consumption is low, drying efficiency height and good product quality.

To solve above technical problem, a kind of production system of DDGS feeds of the invention, including given up mash with Alcohol Plant The connected seperator of pipe, the purified liquor outlet of seperator are connected with concentration systems entrance, the outlet of concentration systems and total concentration liquid pipe It is connected, the wet alcohol slag outlet of the seperator is connected with being fed the charging aperture of conveying worm, the feed conveying worm The first discharging opening be connected with the entrance of the first feed auger of the first pipe bundle drier, the discharging of first pipe bundle drier 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 conveying worm Lower inlet is connected, and the top exit of the first returning charge conveying worm is connected with the entrance of first feed auger；Institute State the discharging opening of the first T-piece splitting valve and the head inlet of discharging spiral conveyor connects, in the discharging spiral conveyor Portion outlet is connected with the lower inlet of the second returning charge conveying worm, the top exit of the second returning charge conveying worm and the The charging aperture connection of one mixer；The second discharging opening also charging aperture with first mixer of the feed conveying worm Connection, total concentration liquid pipe are connected through the charging aperture of first plus slurry valve also with first mixer；First mixing The discharging opening of machine is connected with the entrance of the second feed auger of the second pipe bundle drier；The discharging opening of second pipe bundle drier It is connected with the entrance of the second T-piece splitting valve, before the returning charge mouth and the discharging spiral conveyor of second T-piece splitting valve Portion's entrance connection, the discharging opening of second T-piece splitting valve are connected with the rear entry of the discharging spiral conveyor；It is described The caudal end egress of discharging spiral conveyor is connected with the lower inlet of the 3rd returning charge conveying worm, the 3rd returning charge spiral transferring The top exit of machine is sent to be connected with the charging aperture of the second mixer, total concentration liquid pipe is through second plus slurry valve also with described second The charging aperture connection of mixer；The entrance of the discharging opening of second mixer and the 3rd feed auger of the 3rd pipe bundle drier Connection；The discharging opening of 3rd pipe bundle drier is connected with the entrance of the 3rd T-piece splitting valve, the 3rd T-piece splitting valve Returning charge mouth be connected with the centre entrance of the 3rd returning charge conveying worm, the discharging opening of the 3rd T-piece splitting valve with DDGS production tubes connect.

Relative to prior art, the present invention achieves following beneficial effect：1. useless mash be first separated into wet alcohol slag with it is clear Liquid, the water content of wet alcohol slag is 65~72%, and wet alcohol slag is first sent into the progress one-level drying of the first pipe bundle drier and controlled Returning charge ratio processed, the discharging moisture control that one-level is dried 15~30%, one-level is carried out once plus is starched with concentrate after drying and It is well mixed by the first mixer, the second pipe bundle drier is sent into after well mixed and carries out secondary drying and controls returning charge ratio, The discharging moisture control of secondary drying carries out secondary plus slurry with concentrate after 15~30%, secondary drying and mixed by second Conjunction machine is well mixed, and the 3rd pipe bundle drier is sent into after well mixed and carries out three-stage drying and controls returning charge ratio, three-stage drying goes out The alcohol slag of material turns into DDGS feeds, and the discharging moisture control of three-stage drying is cold into multi-stage countercurrent cooling tower 10~12% But.2. compared with traditional technique uses the disposable drying in parallel of more pipe bundle driers, the present invention, which uses, more than three-level to connect Drying.In order to ensure that the moisture content of discharging meets the requirements, baked strength is bigger, must make to discharge humidity for disposable drying With a large amount of fresh airs, steam consumption and power consumption are all bigger, tail gas poor quality.The moisture content that two-stage discharges before the present invention compares Height, without largely using fresh air, tail gas quality better；Although the moisture content of final stage discharging is than relatively low, due to having already passed through preceding two The prebake of level, for the baked strength of final stage again without very greatly, fresh air consumption is also far below traditional handicraft.The technique of the present invention Volume drying efficiency high, steam is low with power consumption, and waste heat recovery, cascade utilization are carried out respectively beneficial to tail gas.3. material is Ecto-entad is dried, and appearance forms a shell after drying, and concentrate is not easily penetrated into inside alcohol slag, is simply bonded in The surface of alcohol slag, alcohol slag is easy to agglomerating caking, add the evaporation that material internal moisture is less useful for after starching.The present invention adopts Dried with multistage, material moisture content control carries out multiple plus slurry at 15~30% times, is being crusted after avoiding material appearance overdrying Under state plus starch, be advantageous to concentrate and penetrate into inside alcohol slag, improve the quality of DDGS finished products, it is uniform to be also beneficial to material Drying.4. the preceding two-stage of the present invention is prebake, the dust in tail gas is relatively cleaner less, and the air weight content in tail gas is 30~50%, vapour content is high, temperature is high, improves the quality of tube bundle drying machine tail gas, beneficial to progress waste heat recovery.

As the improvement of the present invention, offgas outlet at the top of first and second pipe bundle drier respectively with first and second picogram The air inlet connection of dragon, the air outlet of first and second cyclone connect with the absorption tower air inlet in the middle part of used heat absorption tower respectively Connect, the offgas outlet at the top of the 3rd pipe bundle drier is connected with the air inlet of the 3rd cyclone, the air-out of the 3rd cyclone Mouth is connected with the scrubbing tower air inlet in the middle part of exhaust gas washing tower.What the first pipe bundle drier, the second pipe bundle drier were discharged is high Quality tail gas, dust content is low, and temperature is at 90~96 DEG C, and air weight content is 30~50%, and vapour content is high, temperature Height, recovery heat in used heat absorption tower is entered after the first cyclone, the second cyclone dedusting.3rd 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 after dedusting into waste gas Heat is reclaimed 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 used heat absorption tower and absorption tower exhaust blower Entrance connection, the inner chamber top on the used heat absorption tower is provided with packing layer, and the top of described filler layer is provided with cloth liquid disk, described The bottom on used heat absorption tower is provided with water-collecting tray, discharge outlet and the used heat flash tank in the middle part of used heat flash tank of the tray bottom of catchmenting Entrance is connected, and the used heat flash tank steam (vapor) outlet of the used heat flash drum overhead is connected with flash-off steam pipe, the used 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 filling pipe of the Bu Ye disk center.First pipe bundle drier, the high quality of the second pipe bundle drier discharge Tail gas enters in used heat absorption tower from absorption tower air inlet, flows upwardly through packing layer, drenches following of with cloth liquid disk in packing layer Ring water carries out hot and humid area and washed, and waste gas is extracted out by absorption tower exhaust blower, and the recirculated water after temperature rise, which is fallen into, to catchment In disk, used heat flash tank is flowed under suction function, being flashed in used heat flash tank, which turns into 85 ± 5 DEG C of flash-off steams, enters flash distillation Steam pipe is used for later process, and the condensed water of used heat flash tank bottom is circulated pumped and returned to used 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 provided with condensate water pot steam (vapor) outlet, the condensation Water pot steam (vapor) outlet is connected 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 caused flash-off steam also enters flash-off steam pipe and made for later process after condensed water pot flash distillation Extracted out with, the remaining condensed water water pump that is condensed and be sent to boiler room, can be directly as boiler replenishing water.

As a further improvement on the present invention, the outlet of the DDGS production tubes and the cooling tower of multi-stage countercurrent cooling tower enter Material mouth connects, and the multi-stage countercurrent cooling tower includes cooling tower tower body, and the inner chamber of the cooling tower tower body includes at least two layers of edge The sieve plate of tower body cross section laying, each layer sieve plate are respectively supported on screen frame (unit), and the lower port of the tower body is provided with bottom plate, described cold But tower charging aperture is located on the tower body wall above top layer sieve plate, and the stirrer paddle of stirring material is respectively equipped with above each layer sieve plate, Each stirrer paddle is separately fixed on the agitating shaft at tower body center, and the lower section of the bottom plate is stretched out in the lower end of the agitating shaft And it is connected with the output shaft of stirring driving reductor；Each layer sieve plate is respectively equipped with discharge opening close to the position of excircle, described Discharging is separately installed with below discharge opening and closes air-valve, the discharging of bottom sieve plate is closed air-valve outlet and is connected with cooling tower discharge nozzle； Tower body wall below bottom sieve plate is provided with cooling tower air inlet, and the top of the tower body is provided with fan housing, the outlet of the fan housing It is connected with the entrance of sack cleaner, the outlet of the sack cleaner is connected with cooling tower air exhauster.Through adding slurry dried DDGS feeds fall on top layer sieve plate first, and cold air cools down from the cooling tower air inlet below bottom sieve plate into multi-stage countercurrent In tower, sequentially pass through each layer sieve plate from bottom to top, the material on sieve plate cooled down, material in the presence of air upflow It is in suspended state on sieve plate, stirring driving reductor driving agitating shaft rotation, agitating shaft driving stirrer paddle persistently enters to material Row agitation, the discharge opening of material from top layer sieve plate after preliminary cooling are fallen, and closing air-valve through discharging falls on next layer of sieve plate, Continue to cool down on next layer of sieve plate, cooled down until falling on bottom sieve plate, after the discharge opening discharge of bottom sieve plate, warp The discharging of bottom closes air-valve and is discharged into cooling tower discharge nozzle；Cool down wind and enter sack cleaner progress dedusting from fan housing, it is then cold But tower air exhauster is extracted out and is discharged into air.The multi-stage countercurrent cooling tower material of the present invention is flowed from top to bottom by means of gravity, and cold Wind is in countercurrent flow state, and cooling effectiveness is high, and the material cooling on every layer of sieve plate is uniform, and overall power consumption is low.

As a further improvement on the present invention, the inner chamber top of the exhaust gas washing tower is provided with shower, the shower Outlet with scrubbing tower spray pump is connected, and the entrance of the scrubbing tower spray pump is connected with spray tank, the exhaust gas washing tower The exhaust gas washing tower discharge outlet of bottom is directed at the spray tank；Exhaust gas washing tower exhaust outlet at the top of the exhaust gas washing tower with Used heat effect heat exchanger air inlet at the top of used heat effect heat exchanger shell pass is connected, the used heat effect of the used heat effect heat exchanger shell pass bottom Heat exchanger exhaust outlet is connected with the entrance of used heat effect exhaust blower；The used heat effect heat exchanger of the used heat effect heat exchanger shell pass bottom is dirty Condensate discharge mouth is connected with Sewage Disposal；The feed separation mouth of the used heat effect heat exchanger bottom passes through communicating pipe and used heat Effect separator is connected, and the top of the used heat effect separator is provided with used heat effect separator exhaust outlet, the used heat effect heat exchanger bottom The used heat of the used heat effect heat exchanger material outlet in portion and used heat effect separator bottom imitates separator material outlet jointly with giving up The entrance connection of thermal effect circulating pump, the used heat are imitated outlet of the entrance of circulating pump also with an effect material efferent duct and are connected；It is described The outlet of used heat effect circulating pump is connected with the used heat effect heat exchanger material inlet of used heat effect heat exchanger, the used heat effect circulation Material efferent duct is also imitated by used heat and is connected with the entrance of concentrate holding vessel in the outlet of pump；The bottom of the concentrate holding vessel It is connected with the entrance of screw pump, the outlet of the screw pump is connected with total concentration liquid pipe.The discharge of 3rd pipe bundle drier Low quality tail gas after the 3rd cyclone dedusting, into exhaust gas washing tower in the middle part of scrubbing tower air inlet, flowing up process In, the recirculated water sprayed by shower is washed, and washings are fallen into spray tank, and washed tower spray pumped is sent to spray Pipe circulated sprinkling.Tail gas after washing imitates exhaust blower from the exhaust gas washing tower exhaust outlet discharge at the top of exhaust gas washing tower in used heat Suction under, low quality tail gas enter used heat effect heat exchanger shell pass at the top of used heat effect heat exchanger air inlet, what is flowed downward During the used heat of tube side effect concentrate is heated, the dirty condensation of used heat effect heat exchanger from used heat effect heat exchanger shell pass bottom The dirty condensate liquid of liquid floss hole discharge discharges after entering Sewage Disposal processing.The used heat effect concentration of used heat effect exchanger base The effect concentrate that liquid, the used heat of used heat effect separator bottom are imitated concentrate and come from an effect material efferent duct is imitated by used heat jointly Pumped is circulated, used heat effect heat exchanger material inlet is sent to and carries out circulating-heating, the used heat after heating imitates concentrate from communicating pipe Imitate in separator and separated into used heat, moisture evaporation imitates steam from used heat effect separator exhaust as 65 ± 5 DEG C of used heat Mouth discharge, the used heat after concentration imitate concentrate and imitate circulation pump circulation from used heat effect separator material outlet into used heat, and part is useless The used heat of thermal effect circulating-pump outlet imitates concentrate from used heat effect material efferent duct discharge, is stored into concentrate holding vessel, by spiral shell Bar pumped is sent into total concentration liquid pipe and adds slurry to use for the second pipe bundle drier and the 3rd pipe bundle drier, in concentrate holding vessel The weight concentration of concentrate is 31%~35%.

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 the effect heat exchanger shell pass bottom is connected with pumping house steward；It is described The feed separation mouth of one effect heat exchanger bottom is connected by communicating pipe with an effect separator, and the top of the effect separator is provided with One effect separator exhaust outlet, an effect heat exchanger material outlet of the effect exchanger base and described one effect separator bottom Entrance of the one effect separator material outlet jointly with an effect circulating pump is connected, and the entrance of the effect circulating pump also imitates materials with two The outlet of efferent duct is connected；The outlet of the one effect circulating pump and an effect heat exchanger material inlet of described one effect heat exchanger connect Connect, the outlet of the effect circulating pump is also connected with described one effect material efferent duct.Under the swabbing action of pumping house steward, used heat 85 ± 5 DEG C of flash-off steams that flash tank and condensate water pot flash off enter at the top of an effect heat exchanger shell pass from flash-off steam pipe One effect heat exchanger air inlet, an effect concentrate of tube side is heated during flowing downward, an effect exchanger base An effect concentrate, the effect concentrate and the two effect concentrates that come from two effect material efferent ducts quilt jointly of an effect separator bottom One effect circulation pumped, is sent to an effect heat exchanger material inlet and carries out circulating-heating, one after heating imitates concentrate from communicating pipe Being separated into an effect separator, moisture evaporation is discharged as 72 ± 5 DEG C of two effect steam from an effect separator exhaust outlet, An effect concentrate after concentration enters an effect from an effect separator material outlet and circulates pump circulation, and circulating-pump outlet is imitated in part one One effect concentrate discharges the entrance conveying to used heat effect circulating pump from an effect material efferent duct, is concentrated into next stage, an effect thing The weight concentration for expecting concentrate in efferent duct 17g is 25%~27%.Temperature highest flash-off steam is with having been subjected to three-level concentration One effect concentrate is exchanged 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 and described two effects of the effect heat exchanger shell pass bottom exchange heat Two effect heat exchanger condensing water inlet connections in the middle part of device shell side, two effect heat exchanger exhaust outlets of the two effect heat exchanger shell pass bottom It is connected with the pumping house steward；The feed separation mouth of the two effect heat exchangers bottom is connected by communicating pipe with two effect separators, The top of the two effects separator is provided with two effect separator exhaust outlets, and two effect heat exchanger materials of the two effects exchanger base go out Mouth is connected with entrance of the two effect separator material outlets of described two effect separator bottoms jointly with two effect circulating pumps, two effect Outlet of the entrance of circulating pump also with triple effect material efferent duct is connected；The outlet of the two effects circulating pump and described two effect heat exchangers Two effect heat exchanger material inlets connections, the outlets of the two effects circulating pump are also connected with described two effect material efferent ducts.Taking out Under the swabbing action of gas house steward, steam are imitated into two at the top of two effect heat exchanger shell pass from the two of an effect separator exhaust outlet discharge Imitate heat exchanger air inlet, the two of tube side effect concentrates heated during flowing downward, after two effect steam heat releases into Continue to flow downward for two effect condensed waters.From the one of an effect heat exchanger condensate drain outlet discharge of an effect heat exchanger shell pass bottom Imitate condensed water enter two effect heat exchanger shell pass in the middle part of two effect heat exchanger condensing water inlets, with two effect condensed waters mix after jointly to Lower flowing continues to two effect concentrate heating.Two effect concentrates of two effect exchanger bases, two effects of two effect separator bottoms are dense Contracting liquid and the triple effect concentrate come from triple effect material efferent duct circulate pumped by two effects jointly, are sent to two effect heat exchanger materials and enter Mouthful carry out circulating-heating, after heating two effect concentrates from communicating pipe enter two effect separators in is separated, moisture evaporation into It is that 65 ± 5 DEG C of triple effect steam are discharged from two effect separator exhaust outlets, two effect concentrates after concentration imitate separator materials from two Outlet enters two effects and circulates pump circulation, and the two effect concentrates that circulating-pump outlet is imitated in part two are discharged to one from two effect material efferent ducts The entrance conveying of circulating pump is imitated, is concentrated into next stage, the weight concentration of concentrate is 18%~20% in two effect material efferent ducts. Two higher effect steam of temperature are exchanged heat with having been subjected to two effect concentrates of two-stage concentration, and 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 the 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 the three-effect heat exchanger shell side bottom It is connected with the pumping house steward；The feed separation mouth of the three-effect heat exchanger bottom is connected by communicating pipe with triple effect separator, The top of the triple effect separator is provided with triple effect separator exhaust outlet, and the three-effect heat exchanger material of the three-effect heat exchanger bottom goes out Mouth is connected with entrance of the triple effect separator material outlet of the triple effect separator bottom jointly with triple effect cycle pump, the separation The clear liquid of the purified liquor outlet discharge of machine is connected by clear liquid pipe with the clear liquid charging aperture of the triple effect separator bottom；The triple effect The outlet of circulating pump is connected with the three-effect heat exchanger material inlet of the three-effect heat exchanger, the outlet of the triple effect cycle pump also with The triple effect material efferent duct is connected.Under the swabbing action of pumping house steward, steamed from the triple effect of two effect separator exhaust outlet discharges The three-effect heat exchanger air inlet that vapour enters at the top of three-effect heat exchanger shell side, the triple effect of tube side is concentrated during flowing downward Liquid is heated, and continues to flow downward as triple effect condensed water after triple effect steam heat release.Two from two effect heat exchanger shell pass bottoms Imitate the three-effect heat exchanger condensed water that two effect condensed waters of heat exchanger condensate drain outlet discharge enter in the middle part of three-effect heat exchanger shell side Entrance, flowed downward jointly after being mixed with triple effect condensed water and continue to heat triple effect concentrate.Alcohol Plant gives up what mash was isolated The weight concentration of clear liquid is 4.5%~5.5%, and the clear liquid enters the clear liquid charging aperture of triple effect separator bottom by clear liquid pipe, with Triple effect concentrate mixes, and the triple effect concentrate of three-effect heat exchanger bottom and triple effect separator bottom is jointly by triple effect cycle pumping Go out, be sent to three-effect heat exchanger material inlet and carry out circulating-heating, the triple effect concentrate after heating separates from communicating pipe into triple effect Separated in device, moisture evaporation is discharged as 50 ± 5 DEG C of quadruple effect steam from triple effect separator exhaust outlet；Triple effect after concentration Concentrate enters triple effect cycle pump circulation from triple effect separator material outlet, the triple effect concentrate of part triple effect cycle pump discharge from Triple effect material efferent duct is discharged to be conveyed to the entrance of two effect circulating pumps, is concentrated into next stage, is concentrated in triple effect material efferent duct The weight concentration of liquid is 11%~13%.The relatively low triple effect steam of temperature is exchanged heat with carrying out the triple effect concentrate of primary concentration, Concentrated effect is good.

As a further improvement on the present invention, the triple effect separator exhaust outlet is connected with the pumping house steward, described to take out The outlet of gas house steward is connected with the condenser air inlet on condenser shell side top, the condenser exhaust gas of the condenser shell side bottom Mouth is connected with the entrance of vavuum pump；The condenser condensate drain outlet of the condenser shell side bottom and the entrance of Condensed water collection tank Connection, the top of the Condensed water collection tank are connected with the pumping house steward, 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 tank filling pipe and Sewage Disposal Connection；The entrance of the three-effect heat exchanger condensate drain outlet of the three-effect heat exchanger shell side bottom and the Condensed water collection tank connects Connect.Under the swabbing action of vavuum 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 on condenser shell side by being evacuated house steward The condenser air inlet in portion, cooled down indirectly along shell fluid flow and by the cooling water of tube side from top to bottom, finally from condenser exhaust gas Mouth escapes and enter vavuum 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 bottom enters Condensed water collection tank, and three The condensed water of the three-effect heat exchanger condensate drain outlet discharge of effect 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 house steward.

Brief description of the drawings

The present invention is further detailed explanation with reference to the accompanying drawings and detailed description, accompanying drawing only provide with reference to Illustrate to use, be not used to the limitation present invention.

Fig. 1 is the flow chart of the production system of DDGS feeds of the present invention.

Fig. 2 is the front view of multi-stage countercurrent cooling tower in the present invention.

Fig. 3 is the viewgraph of cross-section above multi-stage countercurrent cooling tower top layer sieve plate in the present invention.

Fig. 4 is Fig. 2 stereogram.

In figure：1. seperator；1a. purified liquor outlets；The wet alcohol slag outlets of 1b.；2. it is fed conveying worm；3. the first tube bank Drying machine；The feed augers of 3a. first；The T-piece splitting valves of 3b. first；3c. the first returning charge conveying worms；The cyclones of 3d. first； 4. the second pipe bundle drier；The feed augers of 4a. second；The T-piece splitting valves of 4b. second；4c. the second returning charge conveying worms；4d. Second cyclone；The mixers of 4e. first；4f. first plus slurry valve；5. the 3rd pipe bundle drier；The feed augers of 5a. the 3rd；5b. Three T-piece splitting valves；The returning charge conveying worms of 5c. the 3rd；The cyclones of 5d. the 3rd；The mixers of 5e. second；5f. second plus slurry valve； 6. discharging spiral conveyor；7. used heat absorption tower；7a. absorption towers air inlet；7b. absorption towers exhaust outlet；7c. cloth liquid disks；7d. is filled out The bed of material；7e. water-collecting trays；7f. absorption towers exhaust blower；7g. absorption towers circulating pump；8. used heat flash tank；8a. used heat flash tanks enter Mouthful；8b. used heat flash tank steam (vapor) outlets；8c. flash tank discharge outlet；9. condensate water pot；9a. condensate pumps；10. multi-stage countercurrent is cold But tower；10a. cooling tower tower bodies；10b. top layer sieve plates；10c. top layer screen frame (unit)s；Air-valve is closed in the discharging of 10d. top layers；10e. bottoms sieve Plate；10f. bottom screen frame (unit)s；10g. bottom layer dischargings close air-valve；10h. bottom plates；Air-valve is closed in the discharging of 10j. bottom plates；10k. cooling towers are fed Mouthful；10m. stirrer paddles；10n. agitating shafts；10p. stirring driving reductors；10q. cooling tower discharge nozzles；10r. cooling tower air intakes Mouthful；10s. fan housings；10t. sack cleaners；11. cooling tower air exhauster；12. exhaust gas washing tower；12a. scrubbing tower air inlets； 12b. scrubbing tower exhaust outlets；12c. scrubbing tower discharge outlet；12d. scrubbing tower spray pumps；12e. sprays tank；13. used heat effect heat exchange Device；13a. used heat imitates heat exchanger material inlet；13b. used heat imitates heat exchanger material outlet；13c. used heat imitates heat exchanger air inlet； 13d. used heat imitates heat exchanger exhaust outlet；13e. used heat imitates heat exchanger dirt condensate discharge mouth；13f. used heat imitates circulating pump；13g. gives up Thermal effect material efferent duct；13h. used heat imitates exhaust blower；14. used heat imitates separator；14a. used heat imitates separator exhaust outlet；14b. gives up Thermal effect separator material outlet；15. concentrate holding vessel；16. screw pump；A 17. effect heat exchanger；17a. mono- imitates heat exchanger material Entrance；17b. mono- imitates heat exchanger material outlet；17c. mono- imitates heat exchanger air inlet；17d. mono- imitates heat exchanger exhaust outlet；17e. mono- Imitate heat exchanger condensate drain outlet；17f. mono- imitates circulating pump；17g. mono- imitates material efferent duct；A 18. effect separator；18a. mono- is imitated Separator exhaust outlet；18b. mono- imitates separator material outlet；19. two effect heat exchangers；19a. bis- imitates heat exchanger material inlet；19b. Two effect heat exchanger material outlets；19c. bis- imitates heat exchanger air inlet；19d. bis- imitates heat exchanger exhaust outlet；It is cold that 19e. bis- imitates heat exchanger Condensate floss hole；19f. bis- imitates circulating pump；19g. bis- imitates material efferent duct；19h. bis- imitates heat exchanger condensing water inlet；20. two effects Separator；20a. bis- imitates separator exhaust outlet；20b. bis- imitates separator material outlet；21. three-effect heat exchanger；21a. triple effects exchange heat Device material inlet；21b. three-effect heat exchanger material outlets；21c. three-effect heat exchanger air inlets；21d. three-effect heat exchanger exhaust outlets； 21e. three-effect heat exchanger condensate drain outlets；21f. triple effect cycle pumps；21g. triple effect material efferent ducts；21h. three-effect heat exchangers are cold Condensate entrance；22. triple effect separator；22a. triple effect separator exhaust outlets；22b. triple effect separator material outlets；22c. clear liquids Charging aperture；23. condenser；23a. condenser cooling water entrances；23b. condenser cooling waters export；23c. condenser air inlets； 23d. condenser exhaust gas mouths；23e. condenser condensate drain outlets；24. Condensed water collection tank；24a. condensate delivery pumps；25. vacuum Pump；G1. liquid pipe is always concentrated；G2.DDGS production tubes；G3. flash-off steam pipe；G4. it is evacuated house steward.

Embodiment

As shown in figure 1, the production system of DDGS feeds of the present invention includes giving up the seperator 1 that mash pipe is connected with Alcohol Plant, The purified liquor outlet 1a of seperator 1 is connected with concentration systems entrance, and the outlet of concentration systems is connected with total concentration liquid pipe G1, seperator 1 wet alcohol slag outlet 1b be fed conveying worm 2 charging aperture be connected, be fed conveying worm 2 the first discharging opening and First feed auger 3a of the first pipe bundle drier 3 entrance connection, the discharging opening of the first pipe bundle drier 3 and the one or three reduction of fractions to a common denominator Material valve 3b entrance is connected, and the first T-piece splitting valve 3b returning charge mouth and the first returning charge conveying worm 3c lower inlet connect Connect, the first returning charge conveying worm 3c top exit is connected with the first feed auger 3a entrance；First T-piece splitting valve 3b Discharging opening be connected with the head inlet of discharging spiral conveyor 6, the centre exit of discharging spiral conveyor 6 and the second returning charge spiral shell Rotation conveyer 4c lower inlet is connected, the second returning charge conveying worm 4c top exit and the first mixer 4e charging aperture Connection；It is fed charging aperture of the second discharging opening of conveying worm 2 also with the first mixer 4e to be connected, total warp for concentrating liquid pipe G1 Charging apertures of the first plus slurry valve 4f also with the first mixer 4e is connected；First mixer 4e discharging opening and the second pipe bundle drier 4 the second feed auger 4a entrance connection.

The discharging opening of second pipe bundle drier 4 is connected with the second T-piece splitting valve 4b entrance, the second T-piece splitting valve 4b Returning charge mouth be connected with the anterior entrance of discharging spiral conveyor 6, the second T-piece splitting valve 4b discharging opening and discharging spiral transferring The rear entry of machine 6 is sent to connect.

The caudal end egress of discharging spiral conveyor 6 is connected with the 3rd returning charge conveying worm 5c lower inlet, and the 3rd returns Material conveying worm 5c top exit is connected with the second mixer 5e charging aperture, and total liquid pipe G1 that concentrates is through second plus slurry valve 5f Also the charging aperture with the second mixer 5e is connected；3rd charging of the second mixer 5e discharging opening and the 3rd pipe bundle drier 5 Spiral 5a entrance connection.

The discharging opening of 3rd pipe bundle drier 5 is connected with the 3rd T-piece splitting valve 5b entrance, the 3rd T-piece splitting valve 5b Returning charge mouth be connected with the 3rd returning charge conveying worm 5c centre entrance, the 3rd T-piece splitting valve 5b discharging opening and DDGS into QC G2 connections.

The job step of the production system of DDGS feeds of the present invention is as follows successively：

(1) Alcohol Plant's mash that gives up is separated into wet alcohol slag and clear liquid through seperator 1, the water content of wet alcohol slag for 65~ 72%, seperator 1 can use horizontal screw centrifuge or plate and frame filter press.

(2) carry out concentration to above-mentioned clear liquid and become concentrate entering total concentration liquid pipe G1, above-mentioned wet alcohol slag is from wet wine Smart slag outlet 1b enters feed conveying worm 2, and a part enters the first charging from the first discharging opening of feed conveying worm 2 Spiral 3a, the first pipe bundle drier 3 is sent into by the first feed auger 3a and carries out one-level drying.

(3) discharged through the dried alcohol slag of one-level from the discharging opening of the first pipe bundle drier 3, by the first T-piece splitting valve 3b controls returning charge ratio, and the alcohol slag of one-level returning charge returns to the first feed auger 3a entrance through the first returning charge conveying worm 3c, The alcohol slag of one-level discharging is delivered to the middle part of discharging spiral conveyor 6 into the head inlet of discharging spiral conveyor 6 backward Outlet discharge, the discharging moisture control that one-level is dried is 15~30%.

(4) the alcohol slag of one-level discharging is after the centre exit discharge of discharging spiral conveyor 6, through the second returning charge spiral transferring The machine 4c of sending delivers to the first mixer 4e charging aperture；Another part of step (2) wet alcohol slag is from the of feed conveying worm 2 The discharge of two discharging openings also enters the first mixer 4e charging aperture, and the concentrate of step (2) also enters first through first plus slurry valve 4f Mixer 4e charging aperture, after the first mixer 4e is well mixed, one-level adds the alcohol slag of slurry to enter the second feed auger 4a, Second pipe bundle drier 4 is sent into by the second feed auger 4a and carries out secondary drying.

(5) the alcohol slag after secondary drying is discharged from the discharging opening of the second pipe bundle drier 4, by the second T-piece splitting valve 4b controls returning charge ratio, and the alcohol slag of two level returning charge enters the anterior entrance of discharging spiral conveyor 6, the alcohol slag with one-level discharging The common centre exit discharge for being delivered to discharging spiral conveyor 6 backward, subsequently under the second returning charge conveying worm 4c End entrance；The rear entry that the alcohol slag of two level discharging enters discharging spiral conveyor 6 is delivered to discharging spiral conveyor 6 backward Caudal end egress discharge, the discharging moisture control of secondary drying is 15~30%.

(6) the alcohol slag of two level discharging is after the caudal end egress discharge of discharging spiral conveyor 6, into the 3rd returning charge spiral Conveyer 5c lower inlet, and it is sent to by the 3rd returning charge conveying worm 5c the second mixer 5e charging aperture；Step is (2) Concentrate also enter the second mixer 5e charging aperture through second plus slurry valve 5f, after the second mixer 5e is well mixed, two The alcohol slag of level plus slurry enters the 3rd feed auger 5a, and being sent into the 3rd pipe bundle drier 5 by the 3rd feed auger 5a carries out three-level Dry.

(7) the alcohol slag after three-stage drying is discharged from the discharging opening of the 3rd pipe bundle drier 5, by the 3rd T-piece splitting valve 5b controls returning charge ratio, and the alcohol slag of three-level returning charge enters the 3rd returning charge conveying worm 5c second charging aperture, by the 3rd returning charge Conveying worm 5c returns to the second mixer 5e charging aperture；The alcohol slag of three-level discharging turns into DDGS feeds from DDGS finished products Mouth is discharged into DDGS production tube G2, and the discharging moisture control of three-stage drying is cold into multi-stage countercurrent cooling tower 10~12% But.

First pipe bundle drier 3, the top of the second pipe bundle drier 4 offgas outlet respectively with the first cyclone 3d, second Cyclone 4d air inlet connection, the first cyclone 3d, the second cyclone 4d air outlet respectively with the middle part of used heat absorption tower 7 Absorption tower air inlet 7a connections, the offgas outlet at the top of the 3rd pipe bundle drier 5 are connected with the 3rd cyclone 5d air inlet, the Three cyclone 5d air outlet is connected with the scrubbing tower air inlet 12a at the middle part of exhaust gas washing tower 12.

First pipe bundle drier 3, the tail gas of the second pipe bundle drier 4 discharge are respectively through the first cyclone 3d, the second picogram Jointly into the absorption tower air inlet 7a at the middle part of used heat absorption tower 7, the tail gas warp of the 3rd pipe bundle drier 5 discharge after imperial 4d dedustings Enter the scrubbing tower air inlet 12a at the middle part of exhaust gas washing tower 12 after 3rd cyclone 5d dedustings.First pipe bundle drier 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, is reclaimed after the first cyclone 3d, the second cyclone 4d dedustings into used heat absorption tower 7 Heat.The discharge of 3rd pipe bundle drier 5 is low quality tail gas, and dust content is high, and temperature is at 75~90 DEG C, air weight content Enter for 60~70%, after dedusting after exhaust gas washing tower 12 washs and reclaim heat.

The absorption tower exhaust outlet 7b at the top of used heat absorption tower 7 is connected with absorption tower exhaust blower 7f entrance, used heat absorption tower 7 Inner chamber top be provided with packing layer 7d, packing layer 7d top is provided with cloth liquid disk 7c, and the bottom on used heat absorption tower 7 is provided with water-collecting tray The discharge outlet of 7e, water-collecting tray 7e bottom is connected with the used heat flash tank entrance 8a at the middle part of used heat flash tank 8, and used heat flash tank 8 pushes up The used heat flash tank steam (vapor) outlet 8b in portion is connected with flash-off steam pipe G3, the flash tank discharge outlet 8c of the bottom of used heat flash tank 8 with Absorption tower circulating pump 7g entrance is connected, and absorption tower circulating pump 7g outlet passes through absorption tower circulation pipe and cloth liquid disk 7c centers Filling pipe is connected.

First pipe bundle drier 3, the high quality tail gas of the second pipe bundle drier 4 discharge enter 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 Washed, waste gas is extracted out by absorption tower exhaust blower 7f, and the recirculated water after temperature rise is fallen into water-collecting tray 7e, in suction function Lower inflow used heat flash tank 8, after flash distillation enters flash-off steam pipe G3 confessions as 85 ± 5 DEG C of flash-off steams in used heat flash tank 8 Procedure uses, and the condensed water of the bottom of used heat flash tank 8 is extracted out by absorption tower circulating pump 7g and returns to the cloth on used heat absorption tower 7 Circulated sprinkling is removed in liquid disk 7c.

The steam condensation of the tube bank discharge of first pipe bundle drier 3, the second pipe bundle drier 4 and the 3rd 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 Condensed water be condensed water pump 9a extract out be sent to boiler room.The steam condensate (SC) of each pipe bundle drier tube bank discharge is very clean, warp Caused flash-off steam also enters flash-off steam pipe G3 and used for later process after condensate water pot 9 flashes, remaining condensed water quilt Condensate pump 9a is extracted out and is sent to boiler room, can be directly as boiler replenishing water.

The DDGS feeds of DDGS production tubes G2 discharges enter in multi-stage countercurrent cooling tower 10 to be discharged after cooling, such as Fig. 2 to Fig. 4 Shown, multi-stage countercurrent cooling tower 10 includes cooling tower tower body 10a, and cooling tower tower body 10a inner chamber includes at least two layers along tower body The sieve plate of cross section laying, each layer sieve plate is respectively supported on screen frame (unit), and exemplified by two layers, top layer sieve plate 10b is supported on top layer sieve On frame 10c, bottom sieve plate 10e is supported on bottom screen frame (unit) 10f, and the tower body lower port below bottom sieve plate 10e is provided with bottom plate Tower body wall above 10h, top layer sieve plate 10b is provided with cooling tower charging aperture 10k, and stirring material is respectively equipped with above each layer sieve plate Stirrer paddle 10m, each stirrer paddle 10m is separately fixed on the agitating shaft 10n at tower body center, and agitating shaft 10n lower end is stretched Go out bottom plate 10h lower section and be connected with stirring driving reductor 10p output shaft.

Each layer sieve plate and bottom plate 10h are respectively equipped with discharge opening close to the position of excircle, and the lower section of discharge opening is installed respectively There is discharging to close air-valve, exemplified by two layers, top layer discharging is installed below top layer sieve plate discharge opening and closes air-valve 10d, bottom sieve plate Bottom layer discharging is installed below discharge opening and closes air-valve 10g, bottom plate discharging is installed below bottom plate discharge opening and closes air-valve 10j, Bottom layer discharging closes air-valve 10g and is connected with bottom plate discharging pass air-valve 10j outlet with cooling tower discharge nozzle 10q；Bottom sieve plate 10e The tower body wall of lower section is provided with cooling tower air inlet 10r, and the top of tower body is provided with fan housing 10s, can also be provided with fan housing 10s cold But tower charging aperture, fan housing 10s outlet are connected with sack cleaner 10t entrance, sack cleaner 10t outlet and cooling tower Air exhauster 11 connects.

Through adding the dried DDGS feeds of slurry to fall first on top layer sieve plate 10b, cold air is below bottom sieve plate 10e Cooling tower air inlet 10r enters in multi-stage countercurrent cooling tower 10, each layer sieve plate is sequentially passed through from bottom to top, to the material on sieve plate Cooled down, material on sieve plate is in suspended state in the presence of air upflow, stirring driving reductor 10p driving agitating shafts 10n rotates, and agitating shaft 10n drivings stirrer paddle 10m persistently stirs to material, and the material after preliminary cooling is from top layer sieve plate 10b discharge opening is fallen, and closing air-valve 10d through top layer discharging falls on next layer of sieve plate, continues on next layer of sieve plate Cooling, cooled down until falling on bottom sieve plate 10e, after bottom sieve plate 10e discharge opening discharge, air-valve is closed through bottom layer discharging 10g is discharged into cooling tower discharge nozzle 10q；The a small amount of material leak on bottom plate 10h can be fallen from bottom plate discharge opening, be discharged through bottom plate Close air-valve 10j and be discharged into cooling tower discharge nozzle 10q.Cool down wind from fan housing 10s enter sack cleaner 10t carry out dedusting, then by Cooling tower air exhauster 11 is extracted out and is discharged into air.The material of multi-stage countercurrent cooling tower 10 of the present invention is flowed from top to bottom by means of gravity It is dynamic, it is in countercurrent flow state with cold wind, cooling effectiveness is high, and the material cooling on every layer of sieve plate is uniform, and overall power consumption is low.

The inner chamber top of exhaust gas washing tower 12 is provided with shower, and scrubbing tower air inlet 12a is located at below shower, shower Outlet with scrubbing tower spray pump 12d is connected, and scrubbing tower spray pump 12d entrance is connected with spray tank 12e, exhaust gas washing tower The scrubbing tower discharge outlet 12c alignment spray tanks 12e of 12 bottoms；The scrubbing tower exhaust outlet 12b at the top of exhaust gas washing tower 12 is with giving up Used heat effect heat exchanger air inlet 13c at the top of the shell side of thermal effect heat exchanger 13 is connected, the used heat of used heat effect heat exchanger 13 shell side bottom Effect heat exchanger exhaust outlet 13d is connected with used heat effect exhaust blower 13h entrance；The used heat effect of used heat effect heat exchanger 13 shell side bottom is changed Hot device dirt condensate discharge mouth 13e is connected with Sewage Disposal；The feed separation mouth of used heat effect heat exchanger 13 bottom passes through connection Pipe is connected with used heat effect separator 14, and the top of used heat effect separator 14 is provided with used heat effect separator exhaust outlet 14a, and used heat effect is changed The used heat effect heat exchanger material outlet 13b of the hot bottom of device 13 and the used heat effect separator material outlet of used heat effect separator 14 bottom Entrances of the 14b jointly with used heat effect circulating pump 13f is connected, and used heat effect circulating pump 13f entrance also imitates material efferent duct 17g with one Outlet be connected；Used heat effect circulating pump 13f outlet and the used heat effect heat exchanger material inlet 13a of used heat effect heat exchanger 13 connect Connect, used heat effect circulating pump 13f outlet is also imitated material efferent duct 13g by used heat and is connected with the entrance of concentrate holding vessel 15； The bottom of concentrate holding vessel 15 is connected with the entrance of screw pump 16, and the outlet of screw pump 16 is connected with total concentration liquid pipe G1.

The low quality tail gas of 3rd pipe bundle drier 5 discharge is after the 3rd cyclone 5d dedustings, into exhaust gas washing tower 12 The scrubbing tower air inlet 12a at middle part, during flowing up, the recirculated water sprayed by shower is washed, and washings are fallen into Spray in tank 12e, washed tower spray pump 12d, which is extracted out, is sent to shower circulated sprinkling.Tail gas after washing washs from waste gas The scrubbing tower exhaust outlet 12b discharges at the top of tower 12, under used heat effect exhaust blower 13h suction, low quality tail gas is imitated into used heat Used heat effect heat exchanger air inlet 13c at the top of the shell side of heat exchanger 13, concentration is imitated during flowing downward to the used heat of tube side Liquid is heated, and is discharged from the used heat effect heat exchanger dirt condensate discharge mouth 13e of used heat effect heat exchanger 13 shell side bottom dirty cold Lime set is discharged after entering Sewage Disposal processing.

The used heat effect concentrate of used heat effect heat exchanger 13 bottom, the used heat effect concentrate of used heat effect separator 14 bottom and from The effect concentrate that one effect material efferent duct 17g comes imitates circulating pump 13f extractions by used heat jointly, is sent to used heat effect heat exchanger material Entrance 13a enters used heat effect heat exchanger 13 and carries out circulating-heating, and the used heat after heating is imitated concentrate and imitated from communicating pipe into used heat Separated in separator 14, moisture evaporation imitates steam from used heat effect separator exhaust outlet 14a rows as 65 ± 5 DEG C of used heat Go out, the used heat after concentration imitates concentrate and enters used heat effect circulating pump 13f circulations, part from used heat effect separator material outlet 14b The used heat of used heat effect circulating pump 13f outlets imitates concentrate from used heat effect material efferent duct 13g discharges, into concentrate holding vessel 15 Storage, extract the total concentration liquid pipe G1 of feeding out by screw pump 16 makes for the second pipe bundle drier 4 and the 3rd pipe bundle drier 5 plus slurry With the weight concentration of concentrate is 31%~35% in concentrate holding vessel 15.

Flash-off steam pipe G3 outlet is connected with the effect heat exchanger air inlet 17c at the top of an effect shell side of heat exchanger 17, and one One effect heat exchanger exhaust outlet 17d of effect heat exchanger 17 shell side bottom is connected with pumping house steward G4；The thing of one effect heat exchanger 17 bottom Material separating opening is connected by communicating pipe with an effect separator 18, and the top of an effect separator 18 is provided with an effect separator exhaust outlet 18a, an effect heat exchanger material outlet 17b of effect heat exchanger 17 bottom and an effect separator material of effect separator 18 bottom Entrances of the outlet 18b jointly with an effect circulating pump 17f is connected, and the entrance of an effect circulating pump 17f also imitates material efferent duct 19g with two Outlet be connected；One effect circulating pump 17f outlet is connected with an effect heat exchanger material inlet 17a of an effect heat exchanger 17, an effect Circulating pump 17f outlet is also connected with an effect material efferent duct 17g.

Under pumping house steward G4 swabbing action, flash off 85 ± 5 DEG C flash distillations of used heat flash tank 8 and condensate water pot 9 The effect heat exchanger air inlet 17c that steam enters at the top of an effect shell side of heat exchanger 17 from flash-off steam pipe G3, what is flowed downward During the one of tube side effect concentrate is heated, an effect concentrate of effect heat exchanger 17 bottom, effect separator 18 bottom The one effect concentrate in portion and the two effect concentrates come from two effect material efferent duct 19g are extracted out by an effect circulating pump 17f jointly, are sent to One effect heat exchanger material inlet 17a enters an effect heat exchanger 17 and carries out circulating-heating, and one after heating imitates concentrate from communicating pipe Separated into an effect separator 18, moisture evaporation imitates separator exhaust outlet 18a as 72 ± 5 DEG C of two effect steam from one Discharge, the effect concentrate after concentration enter an effect circulating pump 17f circulations from an effect separator material outlet 18b, and part one is imitated One effect concentrate of circulating pump 17f outlets discharges the entrance conveying to used heat effect circulating pump 13f from an effect material efferent duct 17g, Concentrated into next stage, the weight concentration of concentrate is 25%~27% in an effect material efferent duct 17g.The flash distillation of temperature highest is steamed Vapour is exchanged heat with having been subjected to an effect concentrate of 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 the two effect shell sides of heat exchanger 19, and one Two effects in the middle part of an effect heat exchanger condensate drain outlet 17e and the two effect shell sides of heat exchanger 19 for the shell side bottom of heat exchanger 17 are imitated to exchange heat The 19h connections of device condensing water inlet, two effect heat exchanger exhaust outlet 19d of two effect heat exchanger 19 shell side bottoms are with being evacuated house steward's G4 phases Even；The feed separation mouth of two effect heat exchanger 19 bottoms is connected by communicating pipe with two effect separators 20, the top of two effect separators 20 Portion is provided with two effect separator exhaust outlet 20a, two effect heat exchanger material outlet 19b of two effect heat exchanger 19 bottoms and two effect separators Entrances of the two effect separator material outlet 20b of 20 bottoms jointly with two effect circulating pump 19f is connected, and two effect circulating pump 19f's enters Outlet of the mouth also with triple effect material efferent duct 21g is connected；Two effect circulating pump 19f outlet and two effects of two effect heat exchangers 19 exchange heat The 19a connections of device material inlet, two effect circulating pump 19f outlet are also connected with two effect material efferent duct 19g.

Under pumping house steward G4 swabbing action, enter two effects from two effect steam of an effect separator exhaust outlet 18a discharges Two effect heat exchanger air inlet 19c at the top of the shell side of heat exchanger 19, two effect concentrates of tube side are entered during flowing downward Row heating, turn into two effect condensed waters after two effect steam heat releases and continue to flow downward.An effect from an effect heat exchanger 17 shell side bottom The two effect heat exchanger condensations that one effect condensed water of heat exchanger condensate drain outlet 17e discharges enters in the middle part of the two effect shell sides of heat exchanger 19 Water inlet 19h, flow downward and continue to two effect concentrate heating jointly with two effect condensed waters.Two effects of two effect heat exchanger 19 bottoms Concentrate, two effect concentrates of two effect separator 20 bottoms and the triple effect concentrate that comes from triple effect material efferent duct 21g quilt jointly Two effect circulating pump 19f are extracted out, are sent to two effect heat exchanger material inlet 19a and are carried out circulating-heating, heating into two effect heat exchangers 19 Two effect concentrates afterwards are imitated in separators 20 from communicating pipe into two to be separated, and moisture evaporation is steamed as 65 ± 5 DEG C of triple effect For vapour from two effect separator exhaust outlet 20a discharges, two effect concentrates after concentration enter two effects from two effect separator material outlet 20b Circulating pump 19f is circulated, and the two effect concentrates that circulating pump 19f outlets are imitated in part two are discharged to an effect from two effect material efferent duct 19g Circulating pump 17f entrance conveying, is concentrated into next stage, in two effect material efferent duct 19g the weight concentrations of concentrate for 18%~ 20%.Two higher effect steam of temperature are exchanged heat with having been subjected to two effect concentrates of two-stage concentration, and concentrated effect is good.

Two effect separator exhaust outlet 20a are connected with the three-effect heat exchanger air inlet 21c at the top of the shell side of three-effect heat exchanger 21, and two The two effect heat exchanger condensate drain outlet 19e for imitating the shell side bottom of heat exchanger 19 exchange heat with the triple effect in the middle part of the shell side of three-effect heat exchanger 21 The 21h connections of device condensing water inlet, the three-effect heat exchanger exhaust outlet 21d of the shell side bottom of three-effect heat exchanger 21 is with being evacuated house steward's G4 phases Even；The feed separation mouth of the bottom of three-effect heat exchanger 21 is connected by communicating pipe with triple effect separator 22, the top of triple effect separator 22 Portion is provided with triple effect separator exhaust outlet 22a, three-effect heat exchanger material outlet 21b and the triple effect separator of the bottom of three-effect heat exchanger 21 Entrances of the triple effect separator material outlet 22b of 22 bottoms jointly with triple effect cycle pump 21f is connected, and seperator 1 is isolated clear Liquid is connected by clear liquid pipe with the clear liquid charging aperture 22c of the bottom of triple effect separator 22；Triple effect cycle pump 21f outlet is changed with triple effect The three-effect heat exchanger material inlet 21a connections of hot device 21, triple effect cycle pump 21f outlet also with triple effect material efferent duct 21g phases Even.

Under pumping house steward G4 swabbing action, enter triple effect from the triple effect steam of two effect separator exhaust outlet 20a discharges Three-effect heat exchanger air inlet 21c at the top of the shell side of heat exchanger 21, enters during flowing downward to the triple effect concentrate of tube side Row heating, continues to flow downward after triple effect steam heat release as triple effect condensed water.Two effects from two effect heat exchanger 19 shell side bottoms The three-effect heat exchanger condensation that two effect condensed waters of heat exchanger condensate drain outlet 19e discharges enter in the middle part of the shell side of three-effect heat exchanger 21 Water inlet 21h, flowed downward jointly with triple effect condensed water and continue to heat triple effect concentrate.The useless mash of Alcohol Plant is isolated clear The weight concentration of liquid is 4.5%~5.5%, and clear liquid enters the clear liquid charging aperture 22c of the bottom of triple effect separator 22 by clear liquid pipe, with Triple effect concentrate mixes, and the triple effect concentrate of the bottom of three-effect heat exchanger 21 and the bottom of triple effect separator 22 is jointly by triple effect cycle pump 21f is extracted out, is sent to three-effect heat exchanger material inlet 21a and is carried out circulating-heating, the triple effect concentrate after heating enters from communicating pipe Separated in triple effect separator 22, moisture evaporation is arranged as 50 ± 5 DEG C of quadruple effect steam from triple effect separator exhaust outlet 22a Go out；Triple effect concentrate after concentration circulates from triple effect separator material outlet 22b into triple effect cycle pump 21f, and part triple effect follows The triple effect concentrate of ring pump 21f outlets discharges the entrance conveying to two effect circulating pump 19f from triple effect material efferent duct 21g, enters Next stage concentrates, and the weight concentration of concentrate is 11%~13% in triple effect material efferent duct 21g.The relatively low triple effect steam of temperature with The triple effect concentrate for carrying out primary concentration is exchanged heat, and concentrated effect is good.

Triple effect separator exhaust outlet 22a is connected with pumping house steward G4, in pumping house steward G4 outlet and the shell side of condenser 23 The condenser air inlet 23c in portion is connected, the condenser exhaust gas mouth 23d and vavuum pump 25 of the shell side bottom of condenser 23 entrance phase Even；The condenser condensate drain outlet 23e of the shell side bottom of condenser 23 is connected with the entrance of Condensed water collection tank 24, Condensed water collection tank 24 top is connected with pumping house steward G4, and the bottom of Condensed water collection tank 24 is connected with condensate delivery pump 24a entrance, condensate conveying Pump 24a outlet is connected by valve with the filling pipe and Sewage Disposal for spraying tank 12e respectively；The shell side of three-effect heat exchanger 21 The three-effect heat exchanger condensate drain outlet 21e of bottom is connected with the entrance of Condensed water collection tank 24.

Under the swabbing action of vavuum 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 the shell side top of condenser 23, from top to bottom along shell fluid flow and by the cooling water of tube side Cooling indirectly, finally escapes and enter vavuum pump 25 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 the shell side bottom of condenser 23 is cold The condensed water of condensate floss hole 23e discharges enters Condensed water collection tank 24, and the three-effect heat exchanger of the shell side bottom of three-effect heat exchanger 21 is cold The condensed water of condensate floss hole 21e discharges also enters Condensed water collection tank 24, and the incoagulable gas at the top of Condensed water collection tank 24 passes through Gas house steward is sucked away.The condensate that Condensed water collection tank 24 is collected contains a certain amount of COD（Characterized with COD organic Thing content）, it is necessary to could be discharged after Sewage Disposal is handled, the present invention backs into spray tank 12e, is washed as waste gas The spray washing water of tower 12, realize that ladder utilizes.

It the foregoing is only the preferable possible embodiments of the present invention, non-therefore the limitation present invention patent protection model Enclose.In addition to the implementation, the present invention can also have other embodiment, such as dry and add slurry to use more than three-level, All technical schemes 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 be realized by or using prior art, will not be repeated here.

Claims (8)

1. a kind of production system of DDGS feeds, including give up the seperator that mash pipe is connected with Alcohol Plant, the clear liquid of seperator goes out Mouth is connected with concentration systems entrance, and the outlet of concentration systems is connected with total concentration liquid pipe, it is characterised in that：The seperator it is wet Alcohol slag exports to be connected with being fed the charging aperture of conveying worm, the first discharging opening and the first pipe of the feed conveying worm The entrance connection of first feed auger of beam drying machine, the discharging opening of first pipe bundle drier and the first T-piece splitting valve Entrance is connected, and the returning charge mouth of first T-piece splitting valve is connected with the lower inlet of the first returning charge conveying worm, and described The top exit of one returning charge conveying worm is connected with the entrance of first feed auger；First T-piece splitting valve goes out The head inlet of material mouth and discharging spiral conveyor connects, the centre exit of the discharging spiral conveyor and the second returning charge spiral The lower inlet of conveyer is connected, and the top exit of the second returning charge conveying worm and the charging aperture of the first mixer connect Connect；Charging aperture of second discharging opening of the feed conveying worm also with first mixer is connected, total concentrate Pipe is connected through the charging aperture of first plus slurry valve also with first mixer；The discharging opening of first mixer and the second tube bank The entrance connection of second feed auger of drying machine；The discharging opening of second pipe bundle drier enters with the second T-piece splitting valve Mouth is connected, and the returning charge mouth of second T-piece splitting valve is connected with the anterior entrance of the discharging spiral conveyor, and described second The discharging opening of T-piece splitting valve is connected with the rear entry of the discharging spiral conveyor；The tail end of the discharging spiral conveyor Outlet is connected with the lower inlet of the 3rd returning charge conveying worm, the top exit and second of the 3rd returning charge conveying worm The charging aperture connection of mixer, total concentration liquid pipe are connected through the charging aperture of second plus slurry valve also with second mixer； The discharging opening of second mixer is connected with the entrance of the 3rd feed auger of the 3rd pipe bundle drier；3rd tube bank is dry The discharging opening of dry machine is connected with the entrance of the 3rd T-piece splitting valve, and the returning charge mouth of the 3rd T-piece splitting valve is returned with the described 3rd Expect the centre entrance connection of conveying worm, the discharging opening of the 3rd T-piece splitting valve is connected with DDGS production tubes；Described First, air inlet of the offgas outlet at the top of two pipe bundle driers respectively with first and second cyclone is connected, first and second picogram The air outlet of dragon is connected with the absorption tower air inlet in the middle part of used heat absorption tower respectively, the tail gas at the top of the 3rd pipe bundle drier Outlet is connected with the air inlet of the 3rd cyclone, the scrubbing tower air inlet in the middle part of the air outlet and exhaust gas washing tower of the 3rd cyclone Connection；The inner chamber top of the exhaust gas washing tower is provided with shower, and the shower is connected with the outlet of scrubbing tower spray pump, institute The entrance for stating scrubbing tower spray pump is connected with spray tank, the exhaust gas washing tower discharge outlet alignment institute of the exhaust gas washing tower bottom State spray tank；Exhaust gas washing tower exhaust outlet at the top of the exhaust gas washing tower is imitated with the used heat at the top of used heat effect heat exchanger shell pass Heat exchanger air inlet is connected, used heat effect heat exchanger exhaust outlet and the used heat effect exhaust blower of the used heat effect heat exchanger shell pass bottom Entrance is connected；The used heat effect heat exchanger dirt condensate discharge mouth and Sewage Disposal phase of the used heat effect heat exchanger shell pass bottom Even；The feed separation mouth of the used heat effect heat exchanger bottom is imitated separator with used heat by communicating pipe and is connected, the used heat effect point Top from device is provided with used heat effect separator exhaust outlet, the used heat effect heat exchanger material outlet of used heat effect exchanger base with Entrance of the used heat effect separator material outlet of the used heat effect separator bottom jointly with used heat effect circulating pump is connected, described useless Outlet of the entrance of thermal effect circulating pump also with an effect material efferent duct is connected；The outlet of the used heat effect circulating pump and the used heat The used heat effect heat exchanger material inlet connection of heat exchanger is imitated, the outlet of the used heat effect circulating pump is also imitated material by used heat and exported Pipe is connected with the entrance of concentrate holding vessel；The bottom of the concentrate holding vessel is connected with the entrance of screw pump, the screw rod The outlet of pump is connected with total concentration liquid pipe.

2. the production system of DDGS feeds according to claim 1, it is characterised in that：Suction at the top of the used heat absorption tower Receive tower exhaust outlet to be connected with the entrance of absorption tower exhaust blower, the inner chamber top on the used heat absorption tower is provided with packing layer, described to fill out The top of the bed of material is provided with cloth liquid disk, and the bottom on the used heat absorption tower is provided with water-collecting tray, the discharge outlet of the tray bottom of catchmenting with Used heat flash tank entrance in the middle part of used heat flash tank is connected, and the used heat flash tank steam (vapor) outlet of the used heat flash drum overhead is with dodging Steam steam pipe to be connected, the flash tank discharge outlet of the used heat flash tank bottom is connected with the entrance of absorption tower circulating pump, the suction The outlet for receiving tower circulating pump is connected by absorption tower circulation pipe with the filling pipe of the Bu Ye disk center.

3. the production system of DDGS feeds according to claim 2, it is characterised in that：The first, second and third tube bank drying Tube bank condensed water row's mouth of machine is connected with the condensate water pot entrance in the middle part of condensate water pot jointly, is provided with the top of the condensate water pot cold Condensate tank steam (vapor) outlet, the condensate water pot steam (vapor) outlet are connected with the flash-off steam pipe, the condensate water pot bottom it is cold The entrance of condensate tank discharge outlet and condensate pump connects, and the outlet of the condensate pump and the softened water feed pipe of boiler room connect Connect.

4. the production system of DDGS feeds according to claim 1, it is characterised in that：The outlet of the DDGS production tubes with The cooling tower charging aperture connection of multi-stage countercurrent cooling tower, the multi-stage countercurrent cooling tower include cooling tower tower body, the cooling tower The inner chamber of tower body includes at least two layers sieve plate laid along tower body cross section, and each layer sieve plate is respectively supported on screen frame (unit), the tower The lower port of body is provided with bottom plate, and the cooling tower charging aperture is located on the tower body wall above top layer sieve plate, divides above each layer sieve plate The stirrer paddle of material She You not be stirred, each stirrer paddle is separately fixed on the agitating shaft at tower body center, the stirring The lower end of axle is stretched out the lower section of the bottom plate and is connected with the output shaft of stirring driving reductor；Each layer sieve plate is close to excircle Position be respectively equipped with discharge opening, discharging is separately installed with below the discharge opening and closes air-valve, wind is closed in the discharging of bottom sieve plate Valve outlet is connected with cooling tower discharge nozzle；Tower body wall below bottom sieve plate is provided with cooling tower air inlet, the top of the tower body Portion is provided with fan housing, and the outlet of the fan housing and the entrance of sack cleaner connect, the outlet of the sack cleaner and cooling tower Air exhauster connects.

5. the production system of DDGS feeds according to claim 2, it is characterised in that：The outlet of the flash-off steam pipe with An effect heat exchanger air inlet at the top of one effect heat exchanger shell pass is connected, an effect heat exchanger row of the effect heat exchanger shell pass bottom Gas port is connected with pumping house steward；The feed separation mouth of the one effect heat exchanger bottom is connected by communicating pipe with an effect separator, The top of the one effect separator is provided with an effect separator exhaust outlet, and an effect heat exchanger material of the effect exchanger base goes out Mouth is connected with entrance of the effect separator material outlet of described one effect separator bottom jointly with an effect circulating pump, an effect Outlet of the entrance of circulating pump also with two effect material efferent ducts is connected；The outlet of the one effect circulating pump and described one effect heat exchanger An effect heat exchanger material inlet connection, the outlet of the effect circulating pump is also connected with described one effect material efferent duct.

6. the production system of DDGS feeds according to claim 5, it is characterised in that：It is described one effect separator exhaust outlet with Two effect heat exchanger air inlets at the top of two effect heat exchanger shell pass are connected, and an effect heat exchanger of the effect heat exchanger shell pass bottom is cold Condensate floss hole is connected with two effect heat exchanger condensing water inlets in the middle part of described two effect heat exchanger shell pass, the two effects heat exchanger shell Two effect heat exchanger exhaust outlets of journey bottom are connected with the pumping house steward；The feed separation mouth of the two effect heat exchangers bottom passes through Communicating pipe is connected with two effect separators, and the top of the two effects separator is provided with two effect separator exhaust outlets, the two effects heat exchange Two effect separator material outlets of two effect heat exchanger material outlets of device bottom and described two effect separator bottoms are imitated with two jointly The entrance connection of circulating pump, described two, which imitate outlet of the entrance of circulating pump also with triple effect material efferent duct, is connected；Two effect is followed Ring pump outlet with described two effect heat exchangers two effect heat exchanger material inlets be connected, it is described two imitate circulating pump outlet also with institute Two effect material efferent ducts are stated to be connected.

7. the production system of DDGS feeds according to claim 6, it is characterised in that：It is described two effect separator exhaust outlet with Three-effect heat exchanger air inlet at the top of three-effect heat exchanger shell side is connected, and two effect heat exchangers of the two effect heat exchanger shell pass bottom are cold Condensate floss hole is connected with the three-effect heat exchanger condensing water inlet in the middle part of the three-effect heat exchanger shell side, the three-effect heat exchanger shell The three-effect heat exchanger exhaust outlet of journey bottom is connected with the pumping house steward；The feed separation mouth of the three-effect heat exchanger bottom passes through Communicating pipe is connected with triple effect separator, and the top of the triple effect separator is provided with triple effect separator exhaust outlet, the triple effect heat exchange The triple effect separator material outlet of the three-effect heat exchanger material outlet of device bottom and the triple effect separator bottom is jointly and triple effect The entrance connection of circulating pump, the clear liquid of the purified liquor outlet discharge of the seperator pass through clear liquid pipe and the triple effect separator bottom Clear liquid charging aperture be connected；The outlet of the triple effect cycle pump connects with the three-effect heat exchanger material inlet of the three-effect heat exchanger Connect, the outlet of the triple effect cycle pump is also connected with the triple effect material efferent duct.

8. the production system of DDGS feeds according to claim 7, it is characterised in that：The triple effect separator exhaust outlet with The pumping house steward is connected, and the outlet of the pumping house steward is connected with the condenser air inlet on condenser shell side top, described cold The condenser exhaust gas mouth of condenser shell side bottom is connected with the entrance of vavuum pump；The condenser condensed water of the condenser shell side bottom Floss hole is connected with the entrance of Condensed water collection tank, and the top of the Condensed water collection tank is connected with the pumping house steward, the condensate The bottom of collecting tank is connected with the entrance of condensate delivery pump, and the outlet of the condensate delivery pump passes through valve and the spray respectively Filling pipe and the Sewage Disposal connection of tank；The three-effect heat exchanger condensate drain outlet of the three-effect heat exchanger shell side bottom with The entrance connection of the Condensed water collection tank.