CN202369406U - Heating system device for tubular digestion - Google Patents
Heating system device for tubular digestion Download PDFInfo
- Publication number
- CN202369406U CN202369406U CN 201120520680 CN201120520680U CN202369406U CN 202369406 U CN202369406 U CN 202369406U CN 201120520680 CN201120520680 CN 201120520680 CN 201120520680 U CN201120520680 U CN 201120520680U CN 202369406 U CN202369406 U CN 202369406U
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- Prior art keywords
- ore pulp
- heat transfer
- heating
- ore slurry
- heating zone
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- Expired - Fee Related
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Abstract
The utility model discloses a heating system device for tubular digestion. The outlet of a heat transfer oil heating furnace (1) is connected with ore slurry heating section equipment (2); the ore slurry heating section equipment (2) is connected with an oil-vapor separator (3); the oil-vapor separator (3) is connected with a filter (4); the filter (4) is connected with a hot oil storage tank (5); the hot oil storage tank (5) is connected with the inlet of the heat transfer oil heating furnace (1) through a circulating pump (6); and the ore slurry heating section equipment (2) is connected with an ore slurry pipeline. According to the heating system device provided by the utility model, heat transfer oil is used as the heat carrier of an ore slurry heating section, so that the temperature control of a digestion section is more accurate, and the heat transfer area of the ore slurry heating section and the investment of sleeve equipment can be reduced.
Description
Technical field
The utility model relates to the heating unit of a kind of aluminum oxide stripping workshop section.
Background technology
Aluminum oxide pipeline digestion series is broadly divided into pulp pre-heating section, ore pulp heating zone, ore pulp stripping conversion zone, ore pulp self-evaporatint n. section, water of condensation self-evaporatint n. section.China's bauxite is mainly diaspore ore, and its stripping temperature is higher, and generally at 260 ~ 280 ℃, the heat hot bed temperature of requirement is more than 290 ℃.Usually in the pulp pre-heating section, ore pulp can be preheating to 210 ~ 220 ℃ by the secondary vapour that the self-evaporatint n. section flashes off, through the ore pulp heating zone ore pulp is heated to the required temperature of stripping then.
At present, be HP steam or inorganic fused salt at the normally used thermal barrier of heating zone.If adopt HP steam as thermal barrier, then require its temperature more than 290 ℃, corresponding pressure is more than 7.6MPa; In order to bear so high pressure; Heating zone telescopic wall thickness will increase, and causes facility investment to increase, and heating zone telescopic wall thickness increase simultaneously can make the telescopic heat transfer coefficient reduce; Need bigger heat transfer area, cause the heating zone sleeve pipe to increase; If adopt inorganic fused salt as thermal barrier, then require its temperature more than 360 ℃, inorganic fused salt density is big, viscosity is big, and flow velocity is slower, causes temperature of molten salt lag, the temperature control of inconvenient aluminum oxide stripping workshop section; In addition, inorganic fused salt can solidify under 142 ℃, causes valve, line clogging easily, need to increase at pipeline, valve place electric heating system with avoid opening in stripping, fused salt frozen plug when stopping.
Summary of the invention
The technical problem that the utility model will solve is, a kind of heating system device of canalization stripping is provided, and the HP steam heating installation investment that prior art exists increases to overcome, the inorganic fused salt heating causes deficiencies such as valve, line clogging easily.
The utility model adopts following technical scheme: the outlet of heat transfer oil heater connects ore pulp heating zone equipment; Ore pulp heating zone equipment is connected with fuel and vapor separator; Fuel and vapor separator is connected with strainer; Strainer is connected with the deep fat storage tank, and the deep fat storage tank is connected with the inlet of heat transfer oil heater through recycle pump; Ore pulp heating zone equipment connects ore slurry pipeline.
Ore pulp heating zone equipment adopts single telescoping or many double-pipe exchangers.
During work; Thermal oil after the heat transfer oil heater heating gets into the ore pulp heating installation as thermal barrier from an end; Ore pulp gets into the ore pulp heating installation from the other end, and ore pulp and thermal oil carry out countercurrent flow, and ore pulp heats up, the thermal oil cooling; Ore pulp after the intensification brings out from one of ore pulp heating installation; Thermal oil after the heat exchange cooling comes out to get into fuel and vapor separator from the ore pulp heating installation, gets into the thermal oil storage tank through strainer subsequently, and the thermal oil after will lowering the temperature with recycle pump is again sent into heat transfer oil heater and reheated and recycle.
The heating system device of the utility model; Use the thermal barrier of thermal oil as the ore pulp heating zone; With respect to HP steam, thermal oil can under low pressure have the pyritous characteristics, and thermal oil has bigger heat transfer temperature difference; Compare HP steam, thermal oil needs littler heat transfer area in the ore pulp heating zone; With respect to inorganic fused salt, thermal oil has homogeneous heating, the advantage of temperature adjustment precise control, and also the density of thermal oil and viscosity ratio inorganic fused salt are little a lot, carry convenient more energy-conservation.Therefore it is more accurate that the utility model makes the temperature control of stripping workshop section, can reduce the heat transfer area and the bushing installation investment of ore pulp heating zone.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model.
Embodiment
The embodiment of the utility model: the outlet of heat transfer oil heater 1 connects ore pulp heating zone equipment 2; Ore pulp heating zone equipment 2 is connected with fuel and vapor separator 3; Fuel and vapor separator 3 is connected with strainer 4; Strainer 4 is connected with deep fat storage tank 5, and deep fat storage tank 5 is connected with the inlet of heat transfer oil heater 1 through recycle pump 6; Ore pulp heating zone equipment 2 connects ore slurry pipeline, and promptly ore pulp gets into 2 heating of heating zone equipment, and flow out the back of heating up.
Ore pulp heating zone equipment 2 adopts single telescoping or many double-pipe exchangers.
Claims (2)
1. the heating system device of a canalization stripping; It is characterized in that: the outlet of heat transfer oil heater (1) connects ore pulp heating zone equipment (2); Ore pulp heating zone equipment (2) is connected with fuel and vapor separator (3); Fuel and vapor separator (3) is connected with strainer (4), and strainer (4) is connected with deep fat storage tank (5), and deep fat storage tank (5) is connected with the inlet of heat transfer oil heater (1) through recycle pump (6); Ore pulp heating zone equipment (2) connects ore slurry pipeline.
2. the heating system device of canalization stripping according to claim 1 is characterized in that: ore pulp heating zone equipment (2) adopts single telescoping or many double-pipe exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120520680 CN202369406U (en) | 2011-12-14 | 2011-12-14 | Heating system device for tubular digestion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120520680 CN202369406U (en) | 2011-12-14 | 2011-12-14 | Heating system device for tubular digestion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202369406U true CN202369406U (en) | 2012-08-08 |
Family
ID=46593119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120520680 Expired - Fee Related CN202369406U (en) | 2011-12-14 | 2011-12-14 | Heating system device for tubular digestion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202369406U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159240A (en) * | 2011-12-14 | 2013-06-19 | 中铝国际技术发展有限公司 | Heating system device for tubular digestion |
-
2011
- 2011-12-14 CN CN 201120520680 patent/CN202369406U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159240A (en) * | 2011-12-14 | 2013-06-19 | 中铝国际技术发展有限公司 | Heating system device for tubular digestion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |