CN201135788Y - Forced circulation multi-effect evaporation system - Google Patents
Forced circulation multi-effect evaporation system Download PDFInfo
- Publication number
- CN201135788Y CN201135788Y CNU200720159357XU CN200720159357U CN201135788Y CN 201135788 Y CN201135788 Y CN 201135788Y CN U200720159357X U CNU200720159357X U CN U200720159357XU CN 200720159357 U CN200720159357 U CN 200720159357U CN 201135788 Y CN201135788 Y CN 201135788Y
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- Prior art keywords
- circulation
- tube
- circulating
- effect
- evaporating unit
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- Expired - Lifetime
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- 238000001704 evaporation Methods 0.000 title claims abstract description 88
- 230000008020 evaporation Effects 0.000 title claims abstract description 29
- 230000000694 effects Effects 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010438 heat treatment Methods 0.000 abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010924 continuous production Methods 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 206010039509 Scab Diseases 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a forced circulation multi-effect evaporation system used for removing original fluid moisture in the alumina production. The system comprises a multi-effect circulation evaporation unit, wherein, an evaporation device, a heating device and a circulation pump which are connected through a circulation tube are arranged in the circulation evaporation unit, the circulation tube of an upper effect circulation evaporation unit is communicated with the circulation tube of a lower circulation evaporation unit through the circulation tube, a material conveying pump is arranged on the connection tube, the heating device in an initial effect circulation evaporation unit is communicated with a steam tube, the circulation tube is communicated with a discharge tube, the circulation tube in an end effect circulation evaporation unit is communicated with a feeding tube. The forced circulation multi-effect evaporation system is characterized in that the feeding tube is added to be connected with the circulation in the initial effect circulation evaporation unit, a charge tube is arranged between the circulation tube of the upper effect circulation evaporation unit and the circulation tube of the lower effect circulation evaporation unit, and the discharge tube is connected on the circulation tube on the end effect circulation evaporation unit. The forced circulation multi-effect evaporation system can guarantee the continuous production of original liquid evaporation, and has the advantages of lower energy consuming and lower production cost.
Description
Technical field
The utility model relates to a kind of forced circulation multi-effect evaporation system, is used for alumina producing, removes stoste moisture.
Background technology
In alumina producing and other Chemical Manufacture, most multi-effect evaporator adopts the adverse current feeding operation substantially, flow direction of material is opposite with the steam flow direction of heating, be called circulated in countercurrent, primary structure comprises multiple-effect circulating and evaporating unit, the evaporimeter that is connected by circulation pipe is arranged in the circulating and evaporating unit, heater and circulating pump, the circulation pipe of last effect circulating and evaporating unit is communicated with by tube connector with the circulation pipe of imitating the circulating and evaporating unit down, tube connector is provided with material-handling pump, first heater of imitating in the circulating and evaporating unit is communicated with steam pipe, circulation pipe is communicated with discharge nozzle, the circulation pipe that imitate in the circulating and evaporating unit at the end is communicated with feed pipe, heater in the circulating and evaporating unit is imitated in the heating steam first circulating and evaporating unit of imitating of flowing through successively to the end, material is flowed through effect circulating and evaporating unit, end to the first circulating and evaporating unit of imitating successively by feed pipe, by connecting the first circulation pipe discharging in the circulating and evaporating unit of imitating, material is finished by material-handling pump by material flowing between the circulating and evaporating unit.
In the practice, after using operation a period of time, can occur in the heater scabbing, directly affect the hot property and the thermal efficiency, therefore, need regularly to replace stoste to carry out circular treatment with dilution, be used to dissolve, remove scabbing of heater, the material evaporation is produced and idle loop occurred, influenced the continuous operation of producing, and also must be by the power of material-handling pump in the idle loop, energy consumption is big, and the waste of energy amount is big.
The utility model content
The purpose of this utility model is to provide a kind of forced circulation multi-effect evaporation system, can guarantee the continuous production of stoste evaporation, and energy consumption is low, and production cost is low.
Forced circulation multi-effect evaporation system described in the utility model, comprise multiple-effect circulating and evaporating unit, generally there is 3-8 to imitate, the evaporimeter that is connected by circulation pipe is arranged in the circulating and evaporating unit, heater and circulating pump, the circulation pipe of last effect circulating and evaporating unit is communicated with by tube connector with the circulation pipe of imitating the circulating and evaporating unit down, tube connector is provided with material-handling pump, first heater of imitating in the circulating and evaporating unit is communicated with steam pipe, circulation pipe is communicated with discharge nozzle, the circulation pipe that imitate in the circulating and evaporating unit at the end is communicated with feed pipe, it is characterized in that setting up a feed pipe and connect first circulation pipe of imitating in the circulating and evaporating unit, be provided with charge tube between the circulation pipe of the circulation pipe of last effect circulating and evaporating unit and following effect circulating and evaporating unit, connect a discharge nozzle on the circulation pipe in the effect circulating and evaporating unit, end.
The cover feed pipe of the utility model by setting up, charge tube and discharge nozzle, can make material form another circulatory system, after original system is using operation a period of time, when need removing scabbing in the heater, can enable this circulatory system of setting up, make the stoste of low concentration replace dilution to carry out the following current circulation, both guaranteed the normal production continuously of stoste evaporation, dissolve by the stoste of low concentration again, removed scabbing in the heater, avoided the material evaporation to produce the idle loop that occurs, energy consumption is low, greatly reduce production cost, and in the circulatory system of setting up, material flows by last effect circulating and evaporating unit and evaporator room's internal pressure differences of imitating in the circulating and evaporating unit down, need not to enable again material-handling pump, no pump punishment in advance between the effect of realization following current circulation has further reduced energy consumption, remarkable in economical benefits.It is simple and direct rationally to set up pipeline in the utility model, makes things convenient for flow operations to switch.
Description of drawings
Fig. 1, the utility model one embodiment easy structure schematic diagram.
1,6,10,14, evaporimeter 2,7,11,15, circulation pipe 3,8,12,16, heater 4, feed pipe 5,9,13, charge tube 17, feed pipe 18, kinetic pump 19,22,25,28, circulating pump 20,23,27, tube connector 21,24,26, material- handling pump 29,30, discharge nozzle I, II, III, IV be the circulating and evaporating unit among the figure:.
The specific embodiment
The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.
As shown in the figure, forced circulation multi-effect evaporation system described in the utility model, comprise multiple-effect circulating and evaporating unit, being generally 3-8 imitates, in the diagram 4 effects, I, II, III, in the circulating and evaporating unit of IV representative the evaporimeter that is connected by circulation pipe is arranged respectively, heater and circulating pump, as the evaporimeter 1 that is connected by circulation pipe 2 is arranged among the circulating and evaporating unit I, heater 3 and circulating pump 28, other is analogized, the circulation pipe of last effect circulating and evaporating unit is communicated with by tube connector with the circulation pipe of imitating the circulating and evaporating unit down, the circulation pipe 2 of imitating the circulating and evaporating unit as the head of I representative is communicated with by tube connector 27 with two circulation pipes 7 of imitating the circulating and evaporating unit of II representative, tube connector 27 is provided with material-handling pump 26, other is analogized, first heater 3 of imitating in the circulating and evaporating unit is communicated with steam pipe, circulation pipe 2 is communicated with discharge nozzle 30, the circulation pipe 15 that imitate in the circulating and evaporating unit at the end is communicated with feed pipe 17, set up a feed pipe 4 and connect first circulation pipe 2 of imitating in the circulating and evaporating unit, be provided with charge tube between the circulation pipe of the circulation pipe of last effect circulating and evaporating unit and following effect circulating and evaporating unit, the circulation pipe 2 and two 7 of the circulation pipes of imitating the circulating and evaporating unit of imitating the circulating and evaporating unit as head are provided with charge tube 5, other is analogized, and connects a discharge nozzle 29 on the circulation pipe 15 in the effect circulating and evaporating unit, end.
Charge tube and discharge nozzle 29 between a cover feed pipe 4 of setting up, each effect form another circulatory system.
Original evaporation flow process is the circulated in countercurrent flow process, and steam is imitated the circulating and evaporating unit by head and imitated the circulating and evaporating unit to the end successively, and then the stoste material is imitated the circulating and evaporating unit successively to the first circulating and evaporating unit of imitating by kinetic pump 18 by the end, realizes common countercurrent flow.After original system is using operation a period of time, when need removing scabbing in the heater, enable the circulatory system of setting up, make the stoste of low concentration replace dilution to carry out the following current circulation, be incorporated in the first effect circulating and evaporating unit by the stoste of feed pipe 4 low concentration, material flows by charge tube by last effect circulating and evaporating unit and evaporator room's internal pressure differences of imitating in the circulating and evaporating unit down, flow no pump punishment in advance between the effect of realization following current circulation by charge tube 5 as imitate evaporator room's internal pressure differences of imitating in the circulating and evaporating unit circulating and evaporating unit and two by head.Both guaranteed the normal production continuously of stoste evaporation, and dissolved, removed scabbing in the heater by the stoste of low concentration again that avoided the material evaporation to produce the idle loop that occurs, energy consumption was low, greatly reduces production cost.
Claims (1)
1, a kind of forced circulation multi-effect evaporation system, comprise multiple-effect circulating and evaporating unit, the evaporimeter that is connected by circulation pipe is arranged in the circulating and evaporating unit, heater and circulating pump, the circulation pipe of last effect circulating and evaporating unit is communicated with by tube connector with the circulation pipe of imitating the circulating and evaporating unit down, tube connector is provided with material-handling pump, first heater of imitating in the circulating and evaporating unit is communicated with steam pipe, circulation pipe is communicated with discharge nozzle, the circulation pipe that imitate in the circulating and evaporating unit at the end is communicated with feed pipe, it is characterized in that setting up a feed pipe and connect first circulation pipe of imitating in the circulating and evaporating unit, be provided with charge tube between the circulation pipe of the circulation pipe of last effect circulating and evaporating unit and following effect circulating and evaporating unit, connect a discharge nozzle on the circulation pipe in the effect circulating and evaporating unit, end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720159357XU CN201135788Y (en) | 2007-12-11 | 2007-12-11 | Forced circulation multi-effect evaporation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720159357XU CN201135788Y (en) | 2007-12-11 | 2007-12-11 | Forced circulation multi-effect evaporation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201135788Y true CN201135788Y (en) | 2008-10-22 |
Family
ID=40036476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720159357XU Expired - Lifetime CN201135788Y (en) | 2007-12-11 | 2007-12-11 | Forced circulation multi-effect evaporation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201135788Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671400A (en) * | 2011-08-01 | 2012-09-19 | 天津聚贤达科技有限公司 | Device and method for conveying materials between different effects of evaporators of multi-effect multiphase flow evaporator |
| CN102805950A (en) * | 2012-08-22 | 2012-12-05 | 中国铝业股份有限公司 | Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way |
| CN103495286A (en) * | 2013-10-24 | 2014-01-08 | 满永国 | Energy-saving evaporating system without preheating or flash evaporation |
-
2007
- 2007-12-11 CN CNU200720159357XU patent/CN201135788Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671400A (en) * | 2011-08-01 | 2012-09-19 | 天津聚贤达科技有限公司 | Device and method for conveying materials between different effects of evaporators of multi-effect multiphase flow evaporator |
| CN102671400B (en) * | 2011-08-01 | 2014-05-07 | 天津聚贤达科技有限公司 | Device and method for conveying materials between different effects of evaporators of multi-effect multiphase flow evaporator |
| CN102805950A (en) * | 2012-08-22 | 2012-12-05 | 中国铝业股份有限公司 | Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way |
| CN102805950B (en) * | 2012-08-22 | 2015-05-06 | 中国铝业股份有限公司 | Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way |
| CN103495286A (en) * | 2013-10-24 | 2014-01-08 | 满永国 | Energy-saving evaporating system without preheating or flash evaporation |
| CN103495286B (en) * | 2013-10-24 | 2015-03-11 | 满永国 | Energy-saving evaporating system without preheating or flash evaporation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081022 |
|
| CX01 | Expiry of patent term |