CN201065330Y - Steam exhaust utilizing device for aluminum oxide production - Google Patents
Steam exhaust utilizing device for aluminum oxide production Download PDFInfo
- Publication number
- CN201065330Y CN201065330Y CNU2007200130778U CN200720013077U CN201065330Y CN 201065330 Y CN201065330 Y CN 201065330Y CN U2007200130778 U CNU2007200130778 U CN U2007200130778U CN 200720013077 U CN200720013077 U CN 200720013077U CN 201065330 Y CN201065330 Y CN 201065330Y
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- CN
- China
- Prior art keywords
- water
- well heater
- wash water
- exhaust steam
- hot water
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- 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 - Lifetime
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a piece of utilization equipment for exhausted steam, in particular to a piece of utilization equipment for exhausted steam produced in the autoclave digestion process in an alumina production system. The utility model is characterized in that a diluted tank (2) and a water outlet end of a last-stage condensation water tank (3) are connected with a wash water heater (1), a water outlet pipe of a transportation pipeline of evaporation sewage or fresh water (7) is connected with the wash water heater (1), and a hot water outlet pipe of the wash water heater (1) is connected with a hot water tank (4). The utility model has the advantages of reducing the secondary steam escape, lowering the energy consumption during the production process and improving the safety of the digestion system.
Description
Technical field
The utility model relates to a kind of exhaust steam and utilizes equipment, particularly relates to a kind ofly pressing the exhaust steam boil the stripping operation to utilize equipment in the alumina producing system.
Background technology
Boil in the stripping operation in the pressure of existing aluminum oxide production process, raw pulp reaches the stripping temperature by indirect or direct heating, after stopping in the insulation digester, need carry out the flash distillation cooling to reclaim its waste heat to stripping slurry.Slip discharging from the final stage flash-pot after red mud wash liquor and aluminum hydroxide wash liquor mix, is delivered to the laterite washing operation by dilution pumps to dilution trap.
There is following problem in the processing mode of existing treatment facility: can flash off a large amount of secondary steams in the dilution trap; Final stage condensation water pot flashes off a large amount of secondary steams simultaneously.Because this two-part vapour amount often fluctuates, thus on-the-spot not high to the utilization ratio of two-part exhaust steam, cause leaking in a large number of exhaust steam.When exhaust steam leaked, band was expected easily, and there is certain danger in this to operating environment, and loss of energy.
The utility model content
The utility model is that exhaust steam utilizes equipment in a kind of alumina producing that above production problem provides in order to solve, and its objective is in order to reduce the energy consumption that leaks, reduces production process of secondary steam.
For reaching above-mentioned purpose, the utility model is achieved in that exhaust steam utilizes equipment in the alumina producing, it is to be made of following structure: the steam output end of dilution trap and final stage condensation water pot is connected with the wash water well heater, the rising pipe of water or new water transfer line is connected with the wash water well heater under the evaporation, and the hot water outlet pipe of wash water well heater is connected with hot water tank.
On the hot water outlet pipe of described wash water well heater, temperature measuring equipment is set, on transfer line water under the evaporation or new water, variable valve is set, temperature measuring equipment and variable valve interlocked control.
Described wash water well heater is connected with safety groove.
Described safety groove is connected with the steam outlet at wash water well heater top.
Be connected with transferpump on the transfer line of water or new water under the described evaporation.
Be connected with transferpump on the hot water outlet pipe of described wash water well heater.
Advantage of the present utility model and effect are as follows:
The utility model equipment adopts with water under the evaporation of evaporization process or new water as cold water source, and takes to spray the direct heating technology with the secondary steam at interflow and carry out Hybrid Heating, by regulating the heat that flooding quantity effectively absorbs secondary steam.Can effectively adsorb secondary steam like this.Hot water is by pump or be depressed into red mud certainly and separate in the hot water tank with washing procedure, can utilize system's waste heat like this.Reduce the energy consumption of production process.Tracheae by the wash water well heater links to each other with safety groove, when being in an emergency, exhaust steam and exhaust steam with slip can be disposed to fast and effectively in the safety groove, improve the security of digestion series.
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model.
In the accompanying drawing: 1, wash water well heater; 2, dilution trap; 3, final stage condensation water pot; 4, hot water tank; 5, safety groove; 6, transferpump; 7, water or new water under the evaporation.
Embodiment
Embodiment to utility model is described in detail in conjunction with the accompanying drawings below, but protection domain of the present utility model is not limit by embodiment.
As shown in Figure 1, exhaust steam utilizes equipment in the utility model alumina producing, it is to be made of following structure: the water side of dilution trap 2 and final stage condensation water pot 3 is connected with wash water well heater 1, the rising pipe of water or new water 7 transfer lines is connected with wash water well heater 1 under the evaporation, the hot water outlet pipe of wash water well heater 1 is connected with hot water tank, is connected with transferpump on the hot water outlet pipe.On the hot water outlet pipe of wash water well heater, temperature measuring equipment is set, on transfer line water under the evaporation or new water 7, variable valve is set, temperature measuring equipment and variable valve interlocked control.The steam outlet at wash water well heater 1 top is connected with safety groove 5.Be connected with transferpump 6 on the transfer line of water or new water 7 under the evaporation.
Exhaust steam utilizes technology in the alumina producing; the steam interflow that steam that flash distillation is come out from dilution trap 2 and 3 flash distillations of final stage condensation water pot are come out; enter into wash water well heater 1; evaporation down water or new water 7 is delivered to wash water well heater 1 by transferpump 6 and is taked to spray the direct heating technology with the secondary steam at interflow and carry out Hybrid Heating; wash water after the heating by pump or the mode of pressing certainly be delivered to red mud and separate in the hot water tank 4 with washing procedure; on the hot water outlet pipe of wash water well heater 1, temperature survey is set; on the inlet pipe of water under the evaporation or new water, variable valve is set; hot water temperature and variable valve interlocked control; when being in an emergency; excess steam in the wash water well heater; can be released into fast in the safety groove 5, with effective protection total system.In the wash water well heater, carry out direct heating with following water of evaporation or new water 7 again behind the stream.
Claims (6)
1. exhaust steam utilizes equipment in the alumina producing, it is characterized in that it is to be made of following structure: the steam output end of dilution trap (2) and final stage condensation water pot (3) is connected with wash water well heater (1), the rising pipe of water or new water (7) transfer line is connected with wash water well heater (1) under the evaporation, and the hot water outlet pipe of wash water well heater (1) is connected with hot water tank (4).
2. exhaust steam utilizes equipment in the alumina producing according to claim 1, it is characterized in that on the hot water outlet pipe of described wash water well heater (1), temperature measuring equipment being set, on transfer line water under the evaporation or new water (7), variable valve is set, temperature measuring equipment and variable valve interlocked control.
3. exhaust steam utilizes equipment in the alumina producing according to claim 1, it is characterized in that described wash water well heater (1) is connected with safety groove (5).
4. exhaust steam utilizes equipment in the alumina producing according to claim 3, it is characterized in that described safety groove (5) is connected with the steam outlet at wash water well heater (1) top.
5. exhaust steam utilizes equipment in the alumina producing according to claim 1, it is characterized in that being connected with transferpump (6) on the transfer line of water under the described evaporation or new water (7).
6. exhaust steam utilizes equipment in the alumina producing according to claim 1, it is characterized in that being connected with transferpump on the hot water outlet pipe of described wash water well heater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200130778U CN201065330Y (en) | 2007-07-03 | 2007-07-03 | Steam exhaust utilizing device for aluminum oxide production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200130778U CN201065330Y (en) | 2007-07-03 | 2007-07-03 | Steam exhaust utilizing device for aluminum oxide production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065330Y true CN201065330Y (en) | 2008-05-28 |
Family
ID=39482500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200130778U Expired - Lifetime CN201065330Y (en) | 2007-07-03 | 2007-07-03 | Steam exhaust utilizing device for aluminum oxide production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065330Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654265B (en) * | 2008-08-19 | 2011-06-29 | 沈阳铝镁设计研究院有限公司 | Diluting tank waste-heat recovering device and control system and control method thereof |
-
2007
- 2007-07-03 CN CNU2007200130778U patent/CN201065330Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101654265B (en) * | 2008-08-19 | 2011-06-29 | 沈阳铝镁设计研究院有限公司 | Diluting tank waste-heat recovering device and control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080528 Effective date of abandoning: 20070703 |