CN201253494Y - Waste clear-liquid secondary-steam evaporation device using drier - Google Patents

Waste clear-liquid secondary-steam evaporation device using drier Download PDF

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Publication number
CN201253494Y
CN201253494Y CNU2008200269982U CN200820026998U CN201253494Y CN 201253494 Y CN201253494 Y CN 201253494Y CN U2008200269982 U CNU2008200269982 U CN U2008200269982U CN 200820026998 U CN200820026998 U CN 200820026998U CN 201253494 Y CN201253494 Y CN 201253494Y
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CN
China
Prior art keywords
effect
steam
evaporation
iii
falling film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200269982U
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Chinese (zh)
Inventor
张继生
孟庆华
胡晓利
鹿伟
赵守合
李家辉
李桂春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINTA MACHINERY CO Ltd FEICHENG
Original Assignee
JINTA MACHINERY CO Ltd FEICHENG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JINTA MACHINERY CO Ltd FEICHENG filed Critical JINTA MACHINERY CO Ltd FEICHENG
Priority to CNU2008200269982U priority Critical patent/CN201253494Y/en
Application granted granted Critical
Publication of CN201253494Y publication Critical patent/CN201253494Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses evaporation equipment for treating waste clear solution through making use of second stream of a dryer. The evaporation equipment is formed mainly through connecting falling film evaporators, vapor-liquid separating tanks and circulation pumps through pipelines; the evaporation equipment comprises three stages which are named as first effect, second effect and third effect, wherein each effect of the evaporation equipment comprises one falling film evaporation, one vapor-liquid separating tank and one circulation pump; evaporation heat source comes from the secondary steam of a steam-pipe rotary dryer; the first effect, the second effect and the third effect material pipes are serially communicated through discharging control valves, and the first effect, the second effect and the third effect are serially communicated through steam pipes. The main heat source of third-order evaporation comes from the secondary waste gas generated by the steam-pipe rotary dryer, thereby the direct emptying waste is avoided, and the production cost is reduced; and the waste clear solution does not contain solid substances and pollutant materials after treatment, thereby the environmental requirements are reached, and the waste liquor pollution problem that restricts enterprise development is thoroughly solved.

Description

Utilize the drying machine indirect steam to handle the vaporising device of discarded clear liquid
Technical field
The utility model belongs to liquid waste processing recovery technology in the Alcohol Production industry.
Background technology
Alcohol industry mainly is to utilize grains such as corn, cassava to carry out fermented distilled production for raw material.Alcohol only utilized the starch part of raw material, and protein remains in the waste liquid in process of production.One ton of alcohol of every production can produce 10-15 tons of vinasse waste liquids, wherein moisturely is about 92-95%, contains rich nutrient contents such as protein, fat, carbohydrate, inorganic salts, microbial cells in all the other dries of 5-8%.PH value is 3.5-4.5, and volatile acid is about 0.8, and total acid is 6-8 0, COD value 30000-40000P.P.M.BOD 520000—30000P.P.M。If directly enter rivers, not only environmental pollution is quite serious, and has wasted a large amount of nutritional labelings." 200420099463.X steam pipe rotary shelf drier " and disclosed " application number: 200410075832.6 " a kind of distillers ' grains drying method that the utility model people authorizes has solved the recycling problem of the poor slag in the waste liquid.But still contain rich nutrient contents such as high protein in the vinasse waste liquid in the isolated clear liquid, directly discharge still can pollute environment.If with subthermal energy dried recovered again, cost is too high, general business burden does not rise.And steam-tube rotatory dryer enters indirect steam in the atmosphere again at work in vain.
Summary of the invention
The utility model provides a kind of indirect steam of steam-tube rotatory dryer that utilizes to handle the vaporising device that vinasse are discarded clear liquid for solving the thorough recycling problem of Alcohol Plant's schlempe waste liquid.
Vaporising device of the present utility model is mainly by falling film evaporator, vapor-liquid separation tank and circulation pump pipeline are formed by connecting, and it is characterized in that, this device is divided into three grades, be called I effect, II effect, III effect, each effect vaporising device all is made up of falling film evaporator, vapor-liquid separation tank and circulating pump.Its evaporation thermal source is from the indirect steam of steam-tube rotatory dryer; I effect, II effect and III are imitated between the materail tube and are ganged up by the discharging control valve, are all ganged up by steam pipe between I effect, II effect and the III effect.
The technological principle of the utility model device is:
1, evaporation material trend is for reverse-flow, and order is for III is imitated, II is imitated, I is imitated.
(1) clear liquid enters in the III effect knockout drum by the charging aperture of stillness of night pump by III effect knockout drum, imitate the material outlet inflow III effect inlet of circulating pump of knockout drum bottom then through III, imitate circulating pump by III clear liquid is sent to the charging aperture that III is imitated the falling film evaporator top, material enters heating tube uniformly by the distribution apparatus on the upper tube sheet, flow downward with form of film, carry out violent evaporation simultaneously, the discharging opening of material in the falling film evaporator bottom enters III and imitates knockout drum, and material and steam are separated at knockout drum.Isolated material is sent by III effect circulating pump, and the one, continue to send III to imitate falling film evaporator partial material and continue evaporation, the 2nd, leftover materials are imitated the discharging control valve through III deliver to II effect vaporising device, carry out the next stage evaporation.The mass flow that enters next stage is imitated the control of discharging control valve by III.
(2) material of imitating the evaporation of vaporising device from III is imitated the charging aperture that circulating pump is sent to II single-effect evaporator top through II, and Flow of Goods and Materials and evaporation process are imitated vaporising device with III; Imitate the material that evaporated through II and deliver to I effect vaporising device through II effect discharging control valve by II effect circulating-pump outlet.
(3) material of imitating the evaporation of vaporising device from II is imitated the charging aperture that circulating pump is sent to I single-effect evaporator top through I, and Flow of Goods and Materials and evaporation process are imitated vaporising device with III.After material is concentrated into the concentration 30%-35% of technological requirement at the I single-effect evaporator, imitates outlet of circulating pump by I and deliver to underflow pump, deliver to steam-tube rotatory dryer by underflow pump again.
2, produce the indirect steam trend from drying machine and be downflow type, order is imitated for I effect-II effect-III.
The secondary steam that steam-tube rotatory dryer produces is attracted to I effect falling film evaporator by air-introduced machine and adds thermal material, and the indirect steam that adds the thermal material generation in I is imitated enters II effect falling film evaporator and adds thermal material.The indirect steam that adds the thermal material generation in II is imitated enters III effect falling film evaporator and adds thermal material.III imitate indirect steam that falling film evaporator produces barometric condenser be condensed after recirculated cooling water directly contacts, on-condensible gas enters the on-condensible gas house steward by upper and lower two air bleeding valves of falling film evaporator cylindrical shell respectively, by the vavuum pump emptying.
3, in above-mentioned evaporation process, the trend of condensed water is that I effect-II effect-III is imitated.
I is imitated the condensed water of falling film evaporator generation from the discharge of tubulation bottom, enters II effect falling film evaporator and carries out flash distillation, utilizes its heat; The condensed water dependence pressure reduction that II effect falling film evaporator produces enters III effect falling film evaporator and carries out flash distillation, utilizes its heat.The condensed water that III is imitated the falling film evaporator generation drains into trench by the condensate pump extraction.
Good effect of the present utility model is: 1, three of this device grades of main thermals source of evaporation are the secondary waste gas that produces from the steam pipe rotary shelf drier, have avoided direct emptying waste, have reduced production cost.2, discarded clear liquid is recovered to the underflow of high protein feed after three grades of circulating and evaporating, the drying machine that suits back carries out drying, collect dry thing again, also make the condensed water and the on-condensible gas of discharge not contain solids and polluter, reach environmental requirement, the waste water pollution problem of restriction enterprise development is thoroughly solved.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Among the figure: 1-III is imitated vapor-liquid separation tank, and 2-III is imitated falling film evaporator, 3-vavuum pump, 4-II is imitated vapor-liquid separation tank, and 5-II is imitated falling film evaporator, and 6-I is imitated falling film evaporator, 7-I is imitated vapor-liquid separation tank, 8-underflow pump, and 9-I is imitated circulating pump, 10-II is imitated the discharging control valve, 11-II is imitated circulating pump, and 12-III is imitated the discharging control valve, and 13-III is imitated circulating pump, 14-condensate pump, 15-clear liquid pump.
The specific embodiment
As shown in Figure 1, vapor-liquid separation tank 1 and falling film evaporator 2, circulating pump 13 usefulness pipelines connect into III and imitate vaporising device, vapor-liquid separation tank 4 and falling film evaporator 5, circulating pump 11 usefulness pipelines connect and compose II and imitate vaporising device, and vapor-liquid separation tank 7 and falling film evaporator 6, circulating pump 9 usefulness pipelines connect into I and imitate vaporising device.
III is imitated and II is imitated the mass transport of vaporising device by III effect discharging control valve 12 and pipeline connection; II is imitated and the mass transport of I vaporising device is imitated discharging control valve 10 and pipeline connection by II.III is imitated the on-condensible gas of falling film evaporator generation by vavuum pump 3 emptyings.The underflow that I is imitated after the evaporation is delivered to steam-tube rotatory dryer by underflow pump 8, mixes with the useless schlempe of vinasse and carries out drying.The isolated clear liquid of vinasse send III to imitate vapor-liquid separation tank 1 by clear liquid pump 15, enters three grades of vaporising devices.
I is imitated the condensed water of falling film evaporator 6 generations from the discharge of tubulation bottom, enters II effect falling film evaporator 5 and carries out flash distillation, utilizes its heat.Equally, II is imitated condensed water that falling film evaporator 5 produces and is relied on pressure reduction to enter III to imitate falling film evaporator 2 and carry out flash distillation and utilize its heat.The condensed water that III is imitated falling film evaporator 2 generations drains into trench by condensate pump 14 extractions.
III is imitated the on-condensible gas that produces in the falling film evaporator 2, enters the on-condensible gas house steward by two air bleeding valves about the evaporator tube respectively, is connected to vavuum pump 3 emptyings then.

Claims (1)

1, a kind of vaporising device that utilizes the drying machine indirect steam to handle discarded clear liquid, it is mainly by falling film evaporator, vapor-liquid separation tank and circulation pump pipeline are formed by connecting, it is characterized in that, this device is divided into three grades, be called I effect, II effect, III effect, each effect vaporising device all is made up of falling film evaporator, vapor-liquid separation tank and circulating pump; Its evaporation thermal source is from the indirect steam of steam-tube rotatory dryer; I effect, II effect and III are imitated between the materail tube and are ganged up by the discharging control valve, are all ganged up by steam pipe between I effect, II effect and the III effect.
CNU2008200269982U 2008-08-22 2008-08-22 Waste clear-liquid secondary-steam evaporation device using drier Expired - Fee Related CN201253494Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200269982U CN201253494Y (en) 2008-08-22 2008-08-22 Waste clear-liquid secondary-steam evaporation device using drier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200269982U CN201253494Y (en) 2008-08-22 2008-08-22 Waste clear-liquid secondary-steam evaporation device using drier

Publications (1)

Publication Number Publication Date
CN201253494Y true CN201253494Y (en) 2009-06-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900419A (en) * 2012-12-29 2014-07-02 上海沃迪自动化装备股份有限公司 Cleaning method for three-effect three-section forced outside cycle concentration evaporator
CN103977582A (en) * 2014-05-12 2014-08-13 江西众合装备技术有限公司 Copper sulfate double-effect automatic plate-type vacuum evaporation device
CN104474729A (en) * 2014-12-10 2015-04-01 云南昆船电子设备有限公司 Double-effect concentrator with forced circulation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103900419A (en) * 2012-12-29 2014-07-02 上海沃迪自动化装备股份有限公司 Cleaning method for three-effect three-section forced outside cycle concentration evaporator
CN103900419B (en) * 2012-12-29 2016-01-20 上海沃迪自动化装备股份有限公司 A kind of triple effect three sections forces outer circulation concentration evaporator cleaning method
CN103977582A (en) * 2014-05-12 2014-08-13 江西众合装备技术有限公司 Copper sulfate double-effect automatic plate-type vacuum evaporation device
CN103977582B (en) * 2014-05-12 2016-02-17 江西众合装备技术有限公司 Copper sulphate two imitates full automatic plate type vacuum evaporator
CN104474729A (en) * 2014-12-10 2015-04-01 云南昆船电子设备有限公司 Double-effect concentrator with forced circulation

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090610

Termination date: 20130822