CN1987320A - Method and device for comprehensively utilizing water from boiling sugar production - Google Patents
Method and device for comprehensively utilizing water from boiling sugar production Download PDFInfo
- Publication number
- CN1987320A CN1987320A CNA2006101241640A CN200610124164A CN1987320A CN 1987320 A CN1987320 A CN 1987320A CN A2006101241640 A CNA2006101241640 A CN A2006101241640A CN 200610124164 A CN200610124164 A CN 200610124164A CN 1987320 A CN1987320 A CN 1987320A
- Authority
- CN
- China
- Prior art keywords
- water
- cooling water
- condenser
- sugared
- indirect
- 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.)
- Pending
Links
Abstract
The method introduces both juice and gas at exit above bowl of boiling sugar, and cooling water to indirect condenser at same time. In the indirect condenser, juice-gas, cooling water pass through different channels. Being connected to condenser, vacuum pump forms vacuum on the exit above bowl of boiling sugar. Condensed juice-gas in the indirect condenser going to collection bowl is as process water recycled by sugar mill. After passing through the exit of the indirect condenser, cooling water going to spray pond or hot water storage tank is as hot water for production or living water. The invention saves process water, and reduces discharge of sewage.
Description
Technical field
The present invention relates to the technology of sugar refinery industrial water comprehensive utilization.Specifically be a kind ofly will boil cooling water in the sugared condensate vacuum system and condensed water separately and the method and apparatus that all utilizes again.
Background technology
China is a lack of water big country, and water resource is not abundant, but water waste is surprising, and the supply and demand problem is very outstanding.This conclusion is not sensationalism.China's water resource Headquarters of the General Staff are 2.81 billion cubic meters, are only second to Brazil, the former Soviet Union, Canada, the U.S. and Indonesia in the world and occupy the 6th.Though absolute magnitude is calculated abundant, owing to have a large population, water resources ownership per capita but is significantly less than world average level, just lists the 88th in the world.And along with explosive growth of population, water resource is being successively decreased every year per capita.From freshwater resources, world occupancy volume per person is 12900 cubic metres, and only 2695 cubic metres in China is less than world occupancy volume per person's 1/4th.China's water resource also has several characteristics: the one, and national precipitation is extremely uneven in the distribution of room and time, and southern water is many, and northern water is few, the difference great disparity, bloods and droughts is very frequent in history; The 2nd, the regional per capita water resource that the north has is equivalent to the most arid in the world country, and seasonal drought but usually takes place in water abundant south, makes to rely on staple crops paddy rice and some the industrial crops water difficulties that water is irrigated; The 3rd, the big handling rate of quantity of wastewater effluent is low, 36,300,000,000 tons of the whole nation year sewers, and wherein 80% is unprocessed, makes rivers,lakes and seas and underground water severe contamination, and water quality lack of water phenomenon is more and more serious; The 4th, the water consumption quota of shortage science and management, the production water consumption is big, and the waste of water is quite general, and national recycling rate of water used by the industries only has 45%, ten thousand yuan of industrial output value water consumption are higher than industrially developed country far away, and the agricultural irrigation effective rate of utilization generally has only 25% to 40%.So the problem of water is very severe in China.Therefore, the new technology of exploring various raising recycling rates of water used by the industries, using water wisely, minimizing quantity of wastewater effluent is instant task.
From enterprise in light industry, sugar industry is the bigger industry of water consumption, past, general sugar refinery is all with washings, condensed water, cooling water does not add the discharging of utilization, this way has not only been wasted resource, the sewage of discharging also in various degree pollution environment, in order to address this problem, people begin to pay attention to the recovery and the problem of complex utilization of sugar refinery water resource in recent years, some solutions have been proposed, for example, we retrieve some open source literatures, report as follows respectively: 1, [autograph] water saving and east gate sugar refinery, sugar refinery waste water control [author] Wei Zhongping [mechanism] Fusui [periodical name] Guangxi light industry .2002 (2) .-20-21[digest] introduced the sewage governing system up to standard in east gate sugar refinery, this factory owner will utilize towards ash water system, the circulating water pool system, no cloth vacuum suction filter and the method for carrying out separation of cloudy and clear are carried out waste water control, and the result has saved a large amount of waters, the sewage qualified discharge.Under the situation of present national water resource anxiety, this system reaches water saving and the two sharp purposes of waste water control, this a kind of method preferably of can yet be regarded as.2, the recovery of [autograph] sugar refinery industrial water and utilization [author] Lu Qingxiong thank to Qi Rong [periodical name] environmental protection scientific and technological information .1992 (3) .-29-32[digest] reported, the industrial water reclaimer has been installed in sugar refinery under the Taiwan sugar industry company (TSC), and purpose is to reduce water temperature so that reuse.This recirculated water can be used as industrial water too partly, difference is partly replenished by underground water, so that reduce the demand of fresh water, specific practice: 1. recovery contains sugar part waste water, sugar part will be contained in washings and the rinse water, company digs on ground to have built and contains the syrup collecting pit, and the water of collection is used for the dipping of cane milling process.2. the recovery of waste discharge utilizes warm water and contaminant water with cleaning to be divided into two pipe-line systems again, and warm water can be reused aspect following after cooling; (1) tail water of condenser: after the cooling tower cooling, 90% tail water is recyclable, and all the other 10% discharging backs replenish new water.(2) squeezer cooling water: after removal grease class is also cooled off voluntarily, recyclable reusing.3, a kind of discussion [author] Huang of new power save mode [1] Long Jiang [mechanism] [1] Nanning Sugar-refining and Paper-making Factory such as [2] that soughs in [autograph] boiling-off process, [2] Guangxi University's biotechnology and sugar industry engineering college, [periodical name] Guangxi light industry .2001 (4) .-20-21, the 19[digest] this paper inquired into a kind of new power save mode of boiling-off stage, proposition utilizes clear juice to replace process heat poach system first cream, adopt three effect juice steams to heat this part clear juice simultaneously, not only can make the clear juice of part can reduce evaporation consumption vapour without evaporization process, the colour that makes this part clear sweat avoid causing because of evaporation simultaneously raises and sugar loss, and can reduce the moisture that enters boiling pan because of the flushing antiquated sand.
Above-mentioned open source literature has been discussed the recovery of sugar refinery water resource and the direction of comprehensive utilization from certain methods, but also will do a lot of work around whole utilizations of wastewater from sugar plant waste residue.
Summary of the invention
The purpose of this invention is to provide the technology of a kind of sugar refinery industrial water comprehensive utilization, make sugar refinery that new technical scheme can be provided aspect comprehensive utilization.
The cooling means of existing sugar refinery boiling pan is the mode of direct heat transfer, great majority adopt the water-jetting type condenser, just the cold water injection device is installed in outlet above boiling pan, make the top outlet local decompression of boiling pan during by cold the injection, condensation vapour is taken out of, and cooling water and condensed water just mix like this, because cooling water impurity content height, can't recycle in sugaring, at most just be used for as ash-flushing water.
Technical solution of the present invention is as follows:
Boil sugared industrial water comprehensive utilization method and be to adopt and boil sugared condensation vapour and vacuumize mode with the cooling water indirect heat exchange, just will boil sugared condensation vapor outlet and introduce indirect heat exchange formula cooler, this cooler top vacuumizes, the bottom emits condensation hot water, cooler chuck or sleeve pipe one end are also introduced cooling water, with boil sugared condensation vapour and carry out discontiguous heat exchange, the other end flows out hot water.The resulting cleaning of sugared condensed water of boiling, can be used as process water, as sieving and washing water, cane milling infiltration water or the reuse of washing filter residue water as methose, and cooling water can lead to spray pond or hot water storage tank behind board-like condensator outlet, provide sugaring operation or paper manufacturing systems to use.The characteristics of this method are that cooling water separates fully with condensed water, and two kinds of water are not polluted except variations in temperature, can all reuse.
Adopt the equipment of the inventive method mainly to constitute by indirect heat exchange formula cooler and vavuum pump, described indirect heat exchange formula cooler can adopt iris type condenser, spiral-plate heat exchanger or pipe heat exchanger, the structure of iris type condenser or spiral-plate heat exchanger is that container is divided into two passages, a passage walks to boil sugared condensation vapour, another passage is walked cooling water, cooling water with boil the heat exchange of sugared condensation vapour counter current contacting; The structure of pipe heat exchanger is that some pipelines of walking to boil sugared condensation vapour are installed in container, boil sugared condensation vapour and walk in the pipe, cooling water is walked between pipe, and cooling water also is and boils the heat exchange of sugared condensation vapour counter current contacting, but the outlet of pipe heat exchanger needs steam-water separator, and condensed water is collected.Described vavuum pump can adopt centrifugal vavuum pump or water-ring vacuum pump.
Outstanding substantive distinguishing features of the present invention and obvious improvement are:
Adopt to adopt and to boil sugared condensation vapour and vacuumize mode with the cooling water indirect heat exchange, the juice vapour of associating condensation boiling pan is taken out the on-condensible gas that draws in the juice vapour, has avoided contacting of cooling water and condensed water, causes mutual pollution, the disadvantage that can't utilize again.Because the cooling water that comes out from condenser is not owing to contact with juice vapour, so except temperature raises, increase sugar part and the pollution that is subjected to other impurity, cooling water inlet temperature can be elevated to 45-85 ℃ from 20-30 ℃, do not bring any sugar part and impurity into,, can lead to spray pond or hot water storage tank no matter be water or secondary water, further supply with bagasse boiling or pulp washing utilization, also can be used as the domestic hot-water and use fully and can use for the other system that does not have the low temperature requirement.And condensed water is not subjected to the pollution of cooling water owing to do not contact with cooling water, and the process water that can be used as a kind of high-quality is all by sugar refinery's reuse.So not only save industrial water, also alleviated the harm that sewage discharge brings to environment.
Description of drawings
Fig. 1 is that the present invention boils sugared industrial water comprehensive utilization method process chart.
Fig. 2 is the equipment connection sketch with water-ring vacuum pump+iris type condenser.
See from Fig. 1, boil sugared condensation vapour (juice vapour) and cooling water and enter indirect condenser respectively, carry out heat exchange, the indirect condenser outlet is installed vavuum pump the concreter outlet is vacuumized, and juice vapour also is condensed into water thereupon and flows out to collecting tank; Cooling water carries out heat exchange at indirect condenser and juice vapour, and the hot water of outlet can lead to spray pond or hot water storage tank, delivers to papermaking subsidiary factory or other subsidiary factories are used with heat-exchanger pump.
Seeing from Fig. 1, is that cooling water enters from indirect condenser top with the connected mode of the equipment of water-ring vacuum pump+iris type condenser, discharges from the bottom; Boiling pan juice vapour enters from iris type condenser middle and lower part, carries out heat exchange at condenser, become condensation heat water and flow out, water-ring vacuum pump and be connected in iris type condenser top and the condensation heat pipe outlet between.
The specific embodiment
Embodiment 1
Replace the water-jetting type condenser of existing sugar refinery boiling pan to vacuumize with water-ring vacuum pump+iris type condenser, avoid boiling syrup vapour fully the contacting of condensation process and water, cooling water and condensed water are collected respectively.Boil sugared shower water (cooling water) and be elevated to 45-85 ℃ from 20-30 ℃ of board-like condenser inlet temperature, do not bring any sugar part and impurity into, no matter be water or secondary water, all supply with paper mills as bagasse boiling or pulp washing utilization, wherein juice vapour condensed water is sieved and washed the water water as the methose that a kind of process water of high-quality is back to use sugar refinery.
Embodiment 2
Replace the water-jetting type condenser of existing sugar refinery boiling pan to vacuumize with centrifugal vavuum pump+trumpet cooler, avoid boiling syrup vapour fully the contacting of condensation process and water, cooling water and condensed water are collected respectively.Boil sugared shower water (cooling water) and be elevated to 45-85 ℃ from 20-30 ℃ of board-like condenser inlet temperature, do not bring any sugar part and impurity into, no matter be water or secondary water, after shower water is handled, all as the preboiler water conservancy with (utilizing heat exchanger that soft water is heated, reduce the firing rate of boiler), juice vapour condensed water is back to use the squeezing or the filter wash cloth usefulness of sugar refinery as a kind of process water of high-quality.
Claims (2)
1, a kind ofly boils sugared industrial water comprehensive utilization method, it is characterized in that: the juice gas and the cooling water of the outlet of boiling pan top are introduced indirect condenser simultaneously, in indirect condenser, juice gas is walked different passages with cooling water, condenser is connected to vavuum pump, the boiling pan top is gone out the interruption-forming vacuum, juice gas leads in the collecting tank in the indirect condenser condensation, as process water by sugar refinery's reuse, and cooling water leads to spray pond or hot water storage tank after the indirect condenser outlet, uses as producing hot water or domestic hot-water.
2, a kind of equipment that sugared industrial water comprehensive utilization method is adopted that boils as claimed in claim 1, it is characterized in that: indirect heat exchange formula cooler is iris type condenser, spiral-plate heat exchanger or pipe heat exchanger, the structure of iris type condenser or spiral-plate heat exchanger is that container is divided into two passages, a passage walks to boil sugared condensation vapour, another passage is walked cooling water, cooling water with boil the heat exchange of sugared condensation vapour counter current contacting; The structure of pipe heat exchanger is that some pipelines of walking to boil sugared condensation vapour are installed in container, boils sugared condensation vapour and walks in the pipe, and cooling water is walked between pipe, and cooling water also is and boils the heat exchange of sugared condensation vapour counter current contacting; Described vavuum pump adopts centrifugal vavuum pump or water-ring vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101241640A CN1987320A (en) | 2006-12-12 | 2006-12-12 | Method and device for comprehensively utilizing water from boiling sugar production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101241640A CN1987320A (en) | 2006-12-12 | 2006-12-12 | Method and device for comprehensively utilizing water from boiling sugar production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1987320A true CN1987320A (en) | 2007-06-27 |
Family
ID=38184206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101241640A Pending CN1987320A (en) | 2006-12-12 | 2006-12-12 | Method and device for comprehensively utilizing water from boiling sugar production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1987320A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530440A (en) * | 2012-01-12 | 2012-07-04 | 四川路加四通科技发展有限公司 | Novel acetone storage device |
| CN104864765A (en) * | 2015-04-08 | 2015-08-26 | 南京阿克赛斯科技有限公司 | Vacuum water-feeding system of cooling tower |
| CN108088275A (en) * | 2017-12-12 | 2018-05-29 | 大连葆光节能空调设备厂 | Boiling exhaust steam residual heat retracting device |
-
2006
- 2006-12-12 CN CNA2006101241640A patent/CN1987320A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530440A (en) * | 2012-01-12 | 2012-07-04 | 四川路加四通科技发展有限公司 | Novel acetone storage device |
| CN104864765A (en) * | 2015-04-08 | 2015-08-26 | 南京阿克赛斯科技有限公司 | Vacuum water-feeding system of cooling tower |
| CN104864765B (en) * | 2015-04-08 | 2017-01-04 | 南京阿克赛斯科技有限公司 | Vacuum water feeding system of cooling tower |
| CN108088275A (en) * | 2017-12-12 | 2018-05-29 | 大连葆光节能空调设备厂 | Boiling exhaust steam residual heat retracting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103848463B (en) | The treatment unit of low-temperature evaporation high-concentration sewage | |
| CN103848464A (en) | Treatment method of low-temperature evaporation high-concentration sewage | |
| CN100486920C (en) | Gas field methanol sewage disposal process | |
| CN106365370A (en) | Recycled type sewage purification equipment | |
| CN107628660A (en) | A kind of high salinity waste water mechanical vapor recompresses MVR systems technologies | |
| CN111268844A (en) | Saline-alkali water desalination circulation system based on micro-grid power supply and application | |
| CN1987320A (en) | Method and device for comprehensively utilizing water from boiling sugar production | |
| CN205084431U (en) | Multiple -effect falling film evaporation ware | |
| CN203820489U (en) | Low-temperature evaporation treatment device for high-concentration wastewater | |
| CN212504406U (en) | Saline and alkaline water desalination circulation system based on micro-grid power supply | |
| CN211971803U (en) | Novel materialized wastewater triple-effect evaporation system | |
| Gunjal et al. | Water conservation in sugar industry | |
| CN202415575U (en) | System for utilizing waste heat of slag quenching water of blast furnace | |
| CN105967255A (en) | Landfill leachate treatment system and technology | |
| CN201539968U (en) | Energy-saving wastewater utilizing system of hot spring | |
| CN205999044U (en) | A kind of low temperature multiple-effect distillation seawater desalination system | |
| CN212246569U (en) | Brewing cooling water recovery and waste heat utilization system | |
| CN214065405U (en) | Cooling water recycling device | |
| CN209052517U (en) | Modularization movable reverse osmosis concentrated water processing equipment | |
| CN106219650A (en) | A kind of low-quality bootstrap system of steel plant and using method thereof | |
| CN208949003U (en) | A kind of thermal power plant, steam power plant's waste water hierarchical synthesis processing system | |
| CN203007082U (en) | Countercurrent multiple-effect evaporation device | |
| CN203546819U (en) | Fully-automatic comprehensive rainwater utilization combination system | |
| CN110157843A (en) | A kind of continuous reclaimer of blast furnace slag quenching water thermal energy | |
| CN214181824U (en) | Hydrogen peroxide solution temperature raising device for film-falling evaporator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |