CN103007560B - Configuration structure of last-effect falling-film evaporator and water cooler - Google Patents
Configuration structure of last-effect falling-film evaporator and water cooler Download PDFInfo
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- CN103007560B CN103007560B CN201110287214.8A CN201110287214A CN103007560B CN 103007560 B CN103007560 B CN 103007560B CN 201110287214 A CN201110287214 A CN 201110287214A CN 103007560 B CN103007560 B CN 103007560B
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Abstract
The invention relates to a last-effect falling-film evaporator and a water cooler and particularly relates to a configuration structure of a last-effect falling-film evaporator and a water cooler in a mother solution evaporation process in the technical field of aluminum oxides. The configuration structure of the last-effect falling-film evaporator and the water cooler comprises a heating chamber and a separating chamber, wherein the bottom of the heating chamber is connected with a gas-liquid mixing chamber, the top of the separating chamber is connected with the water cooler, and the side wall of the gas-liquid mixing chamber is connected with the middle part of the separating chamber through a connecting pipe. The configuration structure has the advantage of effectively solving the problem that secondary steam of the last-effect falling-film evaporator contains alkali. The heating chamber and the separating chamber which have heavier loads are respectively located in two supporting frames, so that the load of a single supporting frame is reduced, and the building structure cost can be reduced.
Description
Technical field
The present invention relates to a kind of end effect falling film evaporator and water cooler, particularly relate to a kind of configuration structure belonging to end effect falling film evaporator and water cooler in the mother liquid evaporation operation of aluminum oxide technology field.
Background technology
At present in alumina producing, mother liquid evaporation operation mainly adopts five effects or six effect adverse current tubular type falling film evaporations, and three grades or level Four spontaneous evaporation and a forced circulation effect, forms a set of evaporator bank.The indirect steam of every single-effect evaporator is as the thermal source of lower 1st effective evaporator, and the indirect steam of last evaporator enters water cooler and is recycled water cooling and absorbs.Because end effect secondary steam vapour amount is large, even if secondary steam pipe diameter has reached about 2 m, flow velocity is still very fast, causes that end effect vapor-liquid separation weak effect, indirect steam alkalinity are high to be caused alkali loss and bring adverse effect to circulating water quality.
The structural shape of common falling film evaporator is that heating clamber drops on above separation chamber, in insertion separation chamber, heating clamber lower end, is linked to be an entirety, and the skirt on separation chamber's lower cone supports total.Because the oven heats area of last evaporator and separation chamber's diameter are all comparatively large, therefore the equipment of last evaporator and weight of material very large, the civil engineering structure supporting last evaporator is also huger.
Summary of the invention
For solving the problems of the technologies described above the configuration structure that the invention provides a kind of end effect falling film evaporator and water cooler, object solves the high problem of end effect secondary steam alkalinity, reduces the civil engineering structure expense of fastening simultaneously.
For reaching the configuration structure of above-mentioned purpose end effect falling film evaporator of the present invention and water cooler, comprise heating clamber and separation chamber, the bottom of heating clamber is connected with vapour-liquid mixing chamber, and the top of separation chamber is connected with water cooler, and the sidewall of vapour-liquid mixing chamber is connected with the middle part of separation chamber by tube connector.
Described separation chamber is middle part is straight tube, and upper and lower two ends are cone, and direct tube section top, separation chamber is provided with demister.
Described indirect steam exit, separation chamber is provided with umbrella crown and water retaining wall.
Described top, separation chamber reaches in water cooler, and the bottom of water cooler is provided with circulating backwater outlet.
Described circulating backwater outlet is communicated with water seal tank by pipeline.
The outlet at bottom of described separation chamber is connected with punishment in advance pump by pipeline.
The outlet at bottom of described vapour-liquid mixing chamber is communicated with the top inlet of heating clamber by circulating pump with the outlet of separation chamber's lower sides.
The middle part of described heating clamber is provided with heating steam import.
Described water cooler upper portion side wall is provided with recirculated water water inlet.
Advantageous effect of the present invention: 1, the plane demister on direct tube section top, separation chamber of the present invention is large with annular demister phase specific area in the past, top indirect steam outlet diameter is also large, and steam flow rate is lower; Indirect steam outlet is located at separation chamber's upper center, and export with the indirect steam in past and be located at compared with separation chamber's upper cone prism, the speed that indirect steam passes through demister is even.Therefore mist good separating effect, effectively can solve the problem of end effect falling film evaporator indirect steam band alkali.
2, the heating clamber that load is heavier and separation chamber lay respectively in two support frames, reduce the load of single support frame, can reduce building structure expense.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
In figure: 1, heating clamber; 2, vapour-liquid mixing chamber; 3, separation chamber; 4, water cooler; 5, tube connector; 6, demister; 7, umbrella crown and water retaining wall; 8, circulating backwater outlet; 9, circulating pump; 10, punishment in advance pump; 11, water seal tank; 12, heating steam import; 13, recirculated water water inlet.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
The configuration structure of end effect falling film evaporator of the present invention and water cooler as shown in Figure 1, comprise heating clamber 1 and separation chamber 3, the bottom of heating clamber 1 is connected with vapour-liquid mixing chamber 2, and the top of separation chamber 3 is connected with water cooler 4, and the sidewall of vapour-liquid mixing chamber 2 is connected with the middle part of separation chamber 3 by tube connector 5; Separation chamber 3 for middle part be straight tube, upper and lower two ends are cone, direct tube section top, separation chamber 3 is provided with demister 6, indirect steam exit, separation chamber 3 is provided with umbrella crown and water retaining wall 7, umbrella crown diameter 1000 ~ 3000mm, high 500 ~ the 3000mm of water retaining wall, the recirculated water flowed down above water cooler 4 can not flow in separation chamber 3; Top, separation chamber 3 reaches in water cooler 4, and the bottom of water cooler 4 is provided with circulating backwater outlet 8, and it is 1 ~ 8 that circulating backwater exports 8 quantity, and circulating backwater outlet 8 is communicated with water seal tank 11 by pipeline, and the outlet at bottom of separation chamber 3 is connected with punishment in advance pump 10 by pipeline; The outlet at bottom of vapour-liquid mixing chamber 2 is communicated with by the top inlet of circulating pump 9 with heating clamber 1 with the outlet of separation chamber 3 lower sides, and the middle part of heating clamber 1 is provided with heating steam import 12; Water cooler 4 upper portion side wall is provided with recirculated water water inlet 13.
The present invention the heating clamber of end effect falling film evaporator and separation chamber be divided into two independently equipment arrange, and water cooler is set directly at above separation chamber, forms an entirety with separation chamber.The liquid-vapor mixture that material is formed after heating clamber evaporation enters separation chamber by tube connector, and indirect steam is recycled water cooling absorption by directly entering water cooler after the demister above separation chamber.
The heating steam entering end effect falling film evaporator enters heating clamber 1, vaporizing raw liquor enters the inlet tube of circulating pump 9, material is entered by heating clamber 1 top, the liquid-vapor mixture formed at vapour-liquid mixing chamber 2 after falling film evaporation enters separation chamber 3 through tube connector 5, indirect steam directly enters water cooler 4 from top, separation chamber 3 by demister 6, material self-pressure in separation chamber 3 enters the inlet tube of circulating pump 9 and punishment in advance pump 10, recirculated water water inlet enters from water cooler 4 top, and backwater flows out from the circulating backwater outlet 8 of water cooler 4 lower sides and enters water seal tank 11.
Claims (6)
1. the inking device of end effect falling film evaporator and water cooler, comprise heating clamber and separation chamber, it is characterized in that the bottom of heating clamber is connected with vapour-liquid mixing chamber, the top of separation chamber is connected with water cooler, and the sidewall of vapour-liquid mixing chamber is connected with the middle part of separation chamber by tube connector; Described separation chamber is middle part is straight tube, and upper and lower two ends are cone, and direct tube section top, separation chamber is provided with demister; Described indirect steam exit, separation chamber is provided with umbrella crown and water retaining wall; Described top, separation chamber reaches in water cooler, and the bottom of water cooler is provided with circulating backwater outlet.
2. the inking device of end effect falling film evaporator according to claim 1 and water cooler, is characterized in that described circulating backwater outlet is communicated with water seal tank by pipeline.
3. the inking device of end effect falling film evaporator according to claim 1 and water cooler, is characterized in that the outlet at bottom of described separation chamber is connected with punishment in advance pump by pipeline.
4. the inking device of end effect falling film evaporator according to claim 1 and water cooler, is characterized in that the outlet at bottom of described vapour-liquid mixing chamber is communicated with the top inlet of heating clamber by circulating pump with the outlet of separation chamber's lower sides.
5. the inking device of end effect falling film evaporator according to claim 1 and water cooler, is characterized in that the middle part of described heating clamber is provided with heating steam import.
6. the inking device of end effect falling film evaporator according to claim 1 and water cooler, is characterized in that described water cooler upper portion side wall is provided with recirculated water water inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110287214.8A CN103007560B (en) | 2011-09-26 | 2011-09-26 | Configuration structure of last-effect falling-film evaporator and water cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110287214.8A CN103007560B (en) | 2011-09-26 | 2011-09-26 | Configuration structure of last-effect falling-film evaporator and water cooler |
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| Publication Number | Publication Date |
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| CN103007560A CN103007560A (en) | 2013-04-03 |
| CN103007560B true CN103007560B (en) | 2015-04-15 |
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| CN201110287214.8A Active CN103007560B (en) | 2011-09-26 | 2011-09-26 | Configuration structure of last-effect falling-film evaporator and water cooler |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383702A (en) * | 2014-10-15 | 2015-03-04 | 上海森松新能源设备有限公司 | Organic acid purifying method and its apparatus |
| CN105776266B (en) * | 2016-02-06 | 2017-08-08 | 杭州锦江集团有限公司 | A kind of evaporation of high concentrated liquor Salt discharge method of seed precipitation solution |
| CN105879496A (en) * | 2016-06-16 | 2016-08-24 | 广西联壮科技股份有限公司 | End-effect evaporator collision foam catcher |
| CN105920862A (en) * | 2016-06-17 | 2016-09-07 | 广西联壮科技股份有限公司 | Dual-spiral baffle sectioning type multistage alkali absorption device |
| CN109568998A (en) * | 2019-01-11 | 2019-04-05 | 江苏普格机械有限公司 | A kind of split-type tube type falling film evaporator |
| CN109568999A (en) * | 2019-01-11 | 2019-04-05 | 江苏普格机械有限公司 | Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups |
| CN109569000A (en) * | 2019-01-11 | 2019-04-05 | 江苏普格机械有限公司 | The split type last evaporator for having water cooling function |
Citations (4)
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| AU7195981A (en) * | 1980-06-20 | 1981-12-24 | Aktieselskabet Niro Atomizer | Method of operating a vapour-heated process system |
| CN1804507A (en) * | 2006-01-20 | 2006-07-19 | 天津商学院 | Water-cooling inside superposed refrigerating system |
| CN200978262Y (en) * | 2006-12-03 | 2007-11-21 | 邹平三星机械制造有限公司 | Falling-film evaporator |
| CN101445257A (en) * | 2008-12-29 | 2009-06-03 | 中国铝业股份有限公司 | Method for evaporating pregnant solution generated in producing alumina by water-typed alumyte |
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2011
- 2011-09-26 CN CN201110287214.8A patent/CN103007560B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7195981A (en) * | 1980-06-20 | 1981-12-24 | Aktieselskabet Niro Atomizer | Method of operating a vapour-heated process system |
| CN1804507A (en) * | 2006-01-20 | 2006-07-19 | 天津商学院 | Water-cooling inside superposed refrigerating system |
| CN200978262Y (en) * | 2006-12-03 | 2007-11-21 | 邹平三星机械制造有限公司 | Falling-film evaporator |
| CN101445257A (en) * | 2008-12-29 | 2009-06-03 | 中国铝业股份有限公司 | Method for evaporating pregnant solution generated in producing alumina by water-typed alumyte |
Non-Patent Citations (1)
| Title |
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| 俞子行.蒸发器的辅助设备.《制药化工过程及设备》.中国医药科技出版社,1991,第210页. * |
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| CN103007560A (en) | 2013-04-03 |
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