CN202465314U - Heating system for chromate production process - Google Patents
Heating system for chromate production process Download PDFInfo
- Publication number
- CN202465314U CN202465314U CN2011200355513U CN201120035551U CN202465314U CN 202465314 U CN202465314 U CN 202465314U CN 2011200355513 U CN2011200355513 U CN 2011200355513U CN 201120035551 U CN201120035551 U CN 201120035551U CN 202465314 U CN202465314 U CN 202465314U
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- CN
- China
- Prior art keywords
- kitchen range
- heating system
- preheating
- chromium powder
- stove
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The utility model relates to a heating system for a chromate production process. At present, the rotary furnace roasting method is mostly adopted in chromate production and has the deficiencies that the heat utilization ratio is low and the flue gas is not utilized. The heating system disclosed by the utility model consists of a primary stove, a secondary stove, an alkaline liquor preheating barrel, a chromium powder preheating barrel and a heating jacket, wherein the flue gas of the primary stove is used for heating a continuous liquid-phase oxidation reaction tower and compressed air involved in reaction, the flue gas of the secondary stove is used for preheating materials in the alkaline liquor preheating barrel and the chromium powder preheating barrel, and meanwhile, the primary stove and the secondary stove further heat the preheated materials to reach the temperature required in the reaction. With the adoption of the heating system disclosed by the utility model, the heat utilization ratio and the efficiency of a chromate reaction tower can be increased, and meanwhile, the coal consumption is reduced, so that the effects of energy saving, emission reduction and production cost reduction are achieved.
Description
Technical field
The utility model relates to the production of chromic salt, says so in more detail about the heating system in the chromic salt production technique.
Background technology
The chromic salt production technique generally adopts the converter roasting method to produce chromic salt at present, and it has weak points such as the chromite ore fine dust is big, noise serious, severe operational environment, the chromium transformation efficiency is low, production cost is high, labor strength is big in process of production.Because it is to utilize the coal combustion direct roasting, HU is low, energy consumption is high so its heating system has, smoke harm is big, not only causes environmental pollution, but also causes the waste of heat.
Present inventors are to above deficiency, and through research with keen determination for a long time, temperature is about 500 ℃ after finding to utilize dedusting, and flow velocity is about 9000m
3The stack gas of/s can be carried out heat tracing to continuous liquid phase oxidation reaction tower, and raw material is carried out preheating, has both utilized the heat of stack gas, has improved HU again, has also reduced production cost, has so far accomplished the utility model.
Summary of the invention
The purpose of the utility model is that HU is low in the solution chromic salt production process, pollution is big, the high deficiency of production cost.
Second purpose of the utility model is to utilize stack gas that raw material and the pressurized air that reacts usefulness are carried out preheating, reduces the consumption of coal, reaches the effect of energy-saving and emission-reduction.
The 3rd purpose of the utility model is to utilize stack gas that continuous liquid phase oxidation reaction tower is carried out heat tracing, and then improves the reaction efficiency of continuous liquid phase oxidation reaction tower, reaches the purpose that raising the output reduces production costs.
In order to achieve the above object, the utility model is achieved in that
A kind of heating system of chromic salt production technique; It is characterized in that forming by main kitchen range (19), secondary kitchen range (15), cleaning apparatus (13) and cleaning apparatus (24), heating jacket, chromium powder preheating bucket (5), alkali lye preheating bucket (6) and flue gas outlet; Wherein main kitchen range (19) is connected with the stack gas import (28) of continuous liquid phase oxidation reaction tower, and secondary kitchen range (15) is connected with alkali lye preheating bucket (6), chromium powder preheating bucket (5).After the stack gas dedusting that wherein main kitchen range produces, heat and be incubated, and the pressurized air that participation is reacted is heated and is incubated through pipe connection master kitchen range (19) and liquid phase oxidation reaction tower chuck (28) continuously; After the stack gas dedusting that secondary kitchen range produces, preheat and be incubated through the chuck of pipeline to alkali lye preheating bucket (6) and chromium powder preheating bucket (5).
A kind of heating system of chromic salt production technique, it is characterized in that described main kitchen range (19) and secondary kitchen range (15) by reciprocating furnace with inner the main pot (21) and (22) of whisking appliance is housed, secondary pot (17) and (18) are formed.
A kind of heating system of chromic salt production technique is characterized in that described alkali lye preheating bucket (6) and the mutual coupled in series of its outer heating jacket of chromium powder preheating bucket (5), and whisking appliance is equipped with in its inside.
Description of drawings
Accompanying drawing 1 is the system flow synoptic diagram of the utility model.
1. induced draft fan; 2. flue gas outlet; 3. the chromium powder slurry outlet that is mixed; 4 chromium powder mixed ingredients slurry inlets; 5. chromium powder preheating bucket; 6. alkali lye preheating bucket; 7. flue gas outlet; 8. alkali lye import; 9. whisking appliance; 10. alkali lye outlet; 11. preheating chuck; 12. stack gas import; 13. secondary kitchen range cleaning apparatus; 14. secondary kitchen range reciprocating furnace flue gas outlet; 15. secondary kitchen range; 16. reciprocating furnace; 17. secondary pot 1; 18. secondary pot 2; 19. main kitchen range; 20. reciprocating furnace; 21. main pot 1; 22. main pot 2; 23. main kitchen range reciprocating furnace flue gas outlet; 24. main kitchen range cleaning apparatus; 25. reaction mass alkali lye import; 26. continuous liquid phase oxidation reaction tower; 27. heat required chuck outward; 28. stack gas import; 29. reacted material outlet; 30. participate in the gas feed of reaction; 31. tapered tower tray; 32. flue gas outlet; 33. reaction mass chromium powder import; 34. reaction back pneumatic outlet; 35. air preheater; 36. air; 37. reacted gas feed; 38. pneumatic outlet; 39. material outlet; 40. gas-liquid separator; 41. store bucket; 42. material inlet; 43. material outlet; 44. separator; 45. material outlet; 46. separator stack gas import; 47. separator preheating chuck; 48. material inlet; 49. material outlet; 50. separator flue gas outlet; 51. rare bucket; 52. mix the powder container.
Embodiment
Below in conjunction with accompanying drawing 1, the utility model is further explained through embodiment.
Embodiment 1:
The stack gas that reciprocating furnace (20) burning of main kitchen range (19) produces; After fly-ash separator (24) dedusting, linked to each other with continuous liquid phase oxidation reaction tower stack gas import (28) through pipeline by flue gas outlet (23), the stack gas of its main kitchen range (19) generation is supplied with the required heat of material reaction in the continuous liquid phase oxidation reaction tower and is heated and be incubated (35) reacting pressurized air; The stack gas that reciprocating furnace (16) burning of secondary kitchen range (15) produces; After fly-ash separator (13) dedusting; Link to each other by the stack gas import (12) of flue gas outlet (14) through pipeline and alkali material preheating bucket (6); Wherein the stack gas heating interlayer of two alkali lye preheating buckets (6) and two chromium powder preheating buckets (5) is connected mutually; The stack gas air outlet (2) of last chromite ore fine preheating bucket (5) links to each other with induced draft fan (1), and the chromium powder of preheating is pumped in the chromium powder import (33) of continuous liquid phase oxidation reaction tower in the chromium powder preheating bucket (5) by pump; The alkali lye of preheating is pumped into preheating in the secondary pot 1 (17) then by preheating in the secondary pot 2 (18) that is pumped in the secondary kitchen range (15) in two alkali lye preheating buckets (6); The alkali material that in secondary pot 1 (17), is preheating to certain temperature is by being pumped into heating in the main pot 1 (21); Flow into heating in the main pot 2 (22) then; When the alkali material is heated in the continuous liquid phase oxidation reaction tower when temperature required; Enter into continuous liquid phase oxidation reaction tower and chromite ore fine reacts under certain conditions by reaction mass alkali lye import (25), to produce chromic salt.
The utility model is owing to adopted alkali lye and the chromite ore fine preheating of stack gas to reaction mass, and reheat has improved the rate of heating of reaction mass and the utilization ratio of heat, the corresponding reaction efficiency that has also improved continuous liquid phase oxidation reaction tower; Because with alkali lye and chromite ore fine and the reaction compression preheating of air of stack gas to reaction mass; Reduced reaction mass required heat in main pot and secondary pot; Reduced the consumption of coal; Reached the purpose of energy-saving and emission-reduction, and reduced production cost, therefore can be used in widely in the production process of chromic salt.
Claims (3)
1. the heating system of a chromic salt production technique; It is characterized in that forming by main kitchen range (19), secondary kitchen range (15), cleaning apparatus one (13) and cleaning apparatus two (24), heating jacket, chromium powder preheating bucket (5), alkali lye preheating bucket (6) and flue gas outlet; Wherein main kitchen range (19) is connected with the stack gas import (28) of continuous liquid phase oxidation reaction tower, and secondary kitchen range (15) is connected with alkali lye preheating bucket (6), chromium powder preheating bucket (5).
2. the heating system of chromic salt production technique according to claim 1 is characterized in that main pot one (21) and main pot two (22), pair pot one (17) and secondary pot two (18) institutes that described main kitchen range (19) and secondary kitchen range (15) are equipped with whisking appliance by reciprocating furnace and inside form.
3. the heating system of chromic salt production technique according to claim 1 is characterized in that described alkali lye preheating bucket (6) and the mutual coupled in series of its outer heating jacket of chromium powder preheating bucket (5), and whisking appliance is equipped with in its inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200355513U CN202465314U (en) | 2011-01-27 | 2011-01-27 | Heating system for chromate production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200355513U CN202465314U (en) | 2011-01-27 | 2011-01-27 | Heating system for chromate production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465314U true CN202465314U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200355513U Expired - Lifetime CN202465314U (en) | 2011-01-27 | 2011-01-27 | Heating system for chromate production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163455A (en) * | 2014-08-01 | 2014-11-26 | 辽宁沈宏集团股份有限公司 | Method for preparing chromium salt |
-
2011
- 2011-01-27 CN CN2011200355513U patent/CN202465314U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163455A (en) * | 2014-08-01 | 2014-11-26 | 辽宁沈宏集团股份有限公司 | Method for preparing chromium salt |
| CN104163455B (en) * | 2014-08-01 | 2016-09-28 | 辽宁沈宏集团股份有限公司 | A kind of method preparing chromic salts |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 402460 Chongqing City, Du Du Industrial Park, Rongchang Patentee after: Chongqing Changyuan Chemical Group Co., Ltd. Address before: 402460 Chongqing City, Du Du Industrial Park, Rongchang Patentee before: Chongqing Changyuan Chemical Corporation Limited |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Heating system for production process of chromate Effective date of registration: 20170519 Granted publication date: 20121003 Pledgee: Chongqing rural commercial bank, Limited by Share Ltd, Rongchang branch Pledgor: Bai Yinchangyuan Chemical Co. Ltd., Chongqing Changyuan Chemical Group Co. Ltd. Registration number: 2017980000218 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |