CN102805950B - Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way - Google Patents
Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way Download PDFInfo
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- CN102805950B CN102805950B CN201210301005.9A CN201210301005A CN102805950B CN 102805950 B CN102805950 B CN 102805950B CN 201210301005 A CN201210301005 A CN 201210301005A CN 102805950 B CN102805950 B CN 102805950B
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- evaporating unit
- circulating
- communicated
- flash tank
- effect circulating
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- 238000001704 evaporation Methods 0.000 title claims abstract description 89
- 230000008020 evaporation Effects 0.000 title claims abstract description 29
- 238000007599 discharging Methods 0.000 title claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009290 primary effect Effects 0.000 abstract 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The invention provides an evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in a stepless way. The evaporation system comprises multiple effects of circular evaporation units and multiple stages of flash tanks, wherein a circulating pipe of an upper-effect circular evaporation unit is communicated with a circulating pipe of a lower-effect circular evaporation unit through a connecting pipe; the flash tanks are communicated with the circular evaporation units; an upper-stage flash tank is communicated with a lower-stage flash tank through a pass pipe; a first-stage flash tank is communicated with a primary-effect circular evaporation unit; a tail-stage flash tank is connected with a discharge pipe; a heater in the primary-effect circular evaporation unit is communicated with a steam pipe; a tail-effect circular evaporation unit is communicated with a feed pipe; a plurality of feed pipes are connected with the circular evaporation units; a pass pipe is arranged between the upper-effect circular evaporation unit and the lower-effect circular evaporation unit; and the tail-effect circular evaporation unit is connected with a discharge pipe. The evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in a stepless way provided by the invention can be applied to continuous production, is low in energy consumption, and is low in production cost.
Description
Technical field
The present invention relates to aluminum oxide production device field, particularly a kind of multipaths charging, evaporation, drop temperature concentration can the vapo(u)rization system of stepless control.
Background technology
In alumina producing and other Chemical Manufacture, the cold boiler of most multiple-effect circulation adopts adverse current feeding substantially, flash distillation draw operation.Flow direction of material is contrary with the steam flow direction of heating, is called that circulated in countercurrent is evaporated.In reality, when evaporator system runs, temperature of charge raises and has an impact to vaporization cycle, and end effect vacuum reduces, the continuous operation of production, must by the power of vavuum pump (or increasing cool water quantity), and energy consumption is large, and its regulating measure is by feed points reach balance.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of can continuous seepage, energy consumption is low, the multipaths charging that production cost is low, evaporation, and drop temperature concentration can the vapo(u)rization system of stepless control.
For solving the problems of the technologies described above, the invention provides a kind of multipaths charging, evaporation, drop temperature concentration can the vapo(u)rization system of stepless control, comprise multiple-effect circulation evaporation element and Multi-stage flash steaming pot, the evaporimeter connected by circulation pipe is had in circulating and evaporating unit, heater and circulating pump, the circulation pipe of upper effect circulating and evaporating unit is communicated with by tube connector with the circulation pipe of lower effect circulating and evaporating unit, tube connector is provided with material-handling pump, flash tank is communicated with circulating and evaporating unit by circulation pipe, higher level's flash tank is communicated with by charge tube with subordinate flash tank, chopped-off head flash tank is imitated circulating and evaporating unit by charge tube with head and is communicated with, final stage flash tank connects discharge nozzle, heater in first effect circulating and evaporating unit is communicated with steam pipe, end effect circulating and evaporating unit is communicated with feed pipe, this vapo(u)rization system has set up the circulation pipe that many feed pipes connect first effect circulating and evaporating unit and other circulating and evaporating unit, charge tube is provided with between the circulation pipe of upper effect circulating and evaporating unit and the circulation pipe of lower effect circulating and evaporating unit, the circulation pipe of end effect circulating and evaporating unit is connected with discharge nozzle.
A kind of multipaths charging provided by the invention, evaporation, drop temperature concentration the vapo(u)rization system of stepless control can overlap feed pipe, charge tube and discharge nozzle by setting up more, makes material form multiple circulating and evaporating system; In multiple circulating and evaporating system, material relies on upper effect circulating and evaporating unit flow with the pressure differential in evaporator room in lower effect circulating and evaporating unit, without the need to enabling material-handling pump, realize following current circulate imitate between without pump punishment in advance, utilize the latent heat of solution to reduce energy consumption, improve economic benefit; And multiple independent loops vapo(u)rization system can independent discharging, flow operations easy switching, load, drop temperature, concentration can steplessly control, and avoid the shortcoming that conventional vapo(u)rization system drop temperature control range is narrow.
Accompanying drawing explanation
The multipaths charging that Fig. 1 provides for the embodiment of the present invention, evaporation, drop temperature concentration can the structural representation of vapo(u)rization system of stepless control.
Detailed description of the invention
See Fig. 1, a kind of multipaths charging that the embodiment of the present invention provides, evaporation, drop temperature concentration can the vapo(u)rization system of stepless control, comprise multiple-effect circulation evaporation element and Multi-stage flash steaming pot, multiple-effect circulation evaporation element in diagram is 6 effects, i.e. I-VI effect, and flash tank is 4 grades, namely VII-Ⅹ grade, evaporimeter 2, heater 3 and circulating pump 4 that circulation pipe 7 connects in the circulating and evaporating unit of I-VI effect, is comprised respectively; The circulation pipe 7 of upper effect circulating and evaporating unit is communicated with by tube connector 8 with the circulation pipe 7 of lower effect circulating and evaporating unit.Tube connector 8 is provided with material-handling pump 6, chopped-off head flash tank VII and circulating and evaporating unit II, flash tank VIII and circulating and evaporating unit III, flash tank Ⅸ and circulating and evaporating unit IV, flash tank Ⅹ is communicated with respectively by circulation pipe 11 with circulating and evaporating unit V, higher level's flash tank is communicated with by charge tube 12 with subordinate flash tank, chopped-off head flash tank VII is imitated circulating and evaporating unit I by charge tube 10 with head and is communicated with, final stage flash tank Ⅹ is connected with discharging pump 14 by discharge nozzle 13, heater 3 in first effect circulating and evaporating unit I is communicated with steam pipe 9, end effect circulating and evaporating unit VI is communicated with feed pipe 1, the vapo(u)rization system that the embodiment of the present invention provides has set up two feed pipes 16, article one, be connected on the circulation pipe 7 of first effect circulating and evaporating unit I, another feed pipe 16 is connected on the circulation pipe 7 of circulating and evaporating unit IV, charge tube 5 is respectively equipped with between the circulation pipe 7 of upper effect circulating and evaporating unit and the circulation pipe 7 of lower effect circulating and evaporating unit, the circulation pipe 7 of end effect circulating and evaporating unit VI is connected with discharge nozzle 15.
A kind of multipaths charging that the embodiment of the present invention provides, evaporation, drop temperature concentration can the vapo(u)rization system of stepless control, set up multiple feed system 2 place, adverse current is formed when vapo(u)rization system is run, following current is evaporated simultaneously, form two evaporation flow processs in parallel: namely first effect circulating and evaporating unit I (or circulating and evaporating unit IV) is to end effect circulating and evaporating unit VI to discharging, first effect circulating and evaporating unit I (or circulating and evaporating unit IV) is to flash tank to discharging, the discharging of two vapo(u)rization system independence, load, drop temperature, concentration can steplessly control, Load Distribution can be balanced very well, avoid the shortcoming that conventional vapo(u)rization system drop temperature control range is narrow, simultaneously, in vapo(u)rization system, material relies on upper effect circulating and evaporating unit to flow with evaporator room's internal pressure differences in lower effect circulating and evaporating unit, without the need to enabling material-handling pump again, realizes between effect that following current circulates without pump punishment in advance, reduce further energy consumption, improve economic benefit.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (1)
1. a multipaths charging, evaporation, drop temperature concentration can the vapo(u)rization system of stepless control, it is characterized in that, comprise six effect circulating and evaporating unit and level Four flash tank, each effect circulating and evaporating unit comprises the evaporimeter connected by circulation pipe, heater and circulating pump, the circulation pipe of upper effect circulating and evaporating unit is communicated with by tube connector with the circulation pipe of lower effect circulating and evaporating unit, tube connector is provided with material-handling pump, charge tube is provided with between the circulation pipe of upper effect circulating and evaporating unit and the circulation pipe of lower effect circulating and evaporating unit, the circulation pipe of end effect circulating and evaporating unit is connected with discharge nozzle, flash tank is communicated with circulating and evaporating unit by circulation pipe, higher level's flash tank is communicated with by charge tube with subordinate flash tank, chopped-off head flash tank is imitated circulating and evaporating unit by charge tube with head and is communicated with, final stage flash tank connects discharge nozzle, heater in first effect circulating and evaporating unit is communicated with steam pipe, and end effect circulating and evaporating unit is communicated with feed pipe, described vapo(u)rization system sets up the circulation pipe that two articles of feed pipes connect first effect circulating and evaporating unit and quadruple effect circulating and evaporating unit respectively, form the flow process of two articles of evaporations in parallel, independent discharging: one article is first effect circulating and evaporating unit to end effect circulating and evaporating unit to discharging or quadruple effect circulating and evaporating unit to end effect circulating and evaporating unit to discharging, another article is that head imitates circulating and evaporating unit to flash tank to discharging or quadruple effect circulating and evaporating unit to flash tank to discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210301005.9A CN102805950B (en) | 2012-08-22 | 2012-08-22 | Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210301005.9A CN102805950B (en) | 2012-08-22 | 2012-08-22 | Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102805950A CN102805950A (en) | 2012-12-05 |
| CN102805950B true CN102805950B (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210301005.9A Active CN102805950B (en) | 2012-08-22 | 2012-08-22 | Evaporation system capable of feeding and evaporating in multiple flows and controlling discharging temperature and concentration in stepless way |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103495286B (en) * | 2013-10-24 | 2015-03-11 | 满永国 | Energy-saving evaporating system without preheating or flash evaporation |
| CN105080169B (en) * | 2014-06-16 | 2017-06-16 | 瞿虹 | A kind of two sections of concurrent-countercurrent alumina evaporation technological processes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6077438A (en) * | 1998-12-22 | 2000-06-20 | Combichem, Inc. | Automated on-line evaporation light scattering detection to quantify isolated fluid sample compounds in microtiter plate format |
| CN201135788Y (en) * | 2007-12-11 | 2008-10-22 | 中国铝业股份有限公司 | Forced circulation multi-effect evaporation system |
| CN101704539A (en) * | 2009-09-11 | 2010-05-12 | 中铝国际技术发展有限公司 | Method and device for evaporating mother liquid in aluminium oxide plant |
| CN102350066A (en) * | 2011-07-30 | 2012-02-15 | 淮北市惠尔普建筑陶瓷有限公司 | Efficient energy-saving environmentally-friendly spraying drying tower |
-
2012
- 2012-08-22 CN CN201210301005.9A patent/CN102805950B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6077438A (en) * | 1998-12-22 | 2000-06-20 | Combichem, Inc. | Automated on-line evaporation light scattering detection to quantify isolated fluid sample compounds in microtiter plate format |
| CN201135788Y (en) * | 2007-12-11 | 2008-10-22 | 中国铝业股份有限公司 | Forced circulation multi-effect evaporation system |
| CN101704539A (en) * | 2009-09-11 | 2010-05-12 | 中铝国际技术发展有限公司 | Method and device for evaporating mother liquid in aluminium oxide plant |
| CN102350066A (en) * | 2011-07-30 | 2012-02-15 | 淮北市惠尔普建筑陶瓷有限公司 | Efficient energy-saving environmentally-friendly spraying drying tower |
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|---|---|
| CN102805950A (en) | 2012-12-05 |
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