CN204084299U - Residual heat using device in a kind of preparation technology of melamine - Google Patents
Residual heat using device in a kind of preparation technology of melamine Download PDFInfo
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- CN204084299U CN204084299U CN201420511474.8U CN201420511474U CN204084299U CN 204084299 U CN204084299 U CN 204084299U CN 201420511474 U CN201420511474 U CN 201420511474U CN 204084299 U CN204084299 U CN 204084299U
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- melamine
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Abstract
The utility model discloses the residual heat using device in a kind of preparation technology of melamine, by arranging a duct type heat exchange of heat pipe between hot-air filter and crystallizer, can by from about the hot-air filter high-temperature reacting gas to 270 of 320 DEG C out DEG C, then the high-temperature reacting gas of 270 DEG C enters crystallizer again, the cold air quenching to 210 DEG C of 140 DEG C that enter with bottom, enter melamine collector after melamine crystallization, isolate melamine.So both reclaimed high-temperature reacting gas is down to 270 DEG C partial heat from 320 DEG C, can produce higher than 45kg/cm
2the high steam of high-quality, the cold air of 140 DEG C entering crystallizer bottom can also be made to reduce about 30%, reduce the power consumption of Cool gas blower, there is good economic benefit.
Description
Technical field
The utility model belongs to one-step method gas phase quenching and produces melamine technical field, particularly relates to the residual heat using device in a kind of preparation technology of melamine.
Background technology
Existing one-step method gas phase quenching preparation technology of melamine: generate gas from the pyroreaction of hot-air filter out 320 DEG C and directly enter the cold air that crystallizer and urine washes 140 DEG C of tower and carry out gas phase quenching, the temperature of gaseous mixture is made to be down to 210 DEG C, melamine crystallization also trips out crystallizer with mist one and enters melamine collector, after isolating melamine, the mist of 210 DEG C enters Cool gas blower.The gas of Cool gas blower outlet enters urine again and washes tower.The problem of this technique is, generates gas directly enter crystallizer from the pyroreaction of hot-air filter out 320 DEG C, be down to 210 DEG C need with the cold air quenching of 140 DEG C more than 3 times, such Cool gas blower power consumption will be very high.Reduce the power consumption of Cool gas blower, the amount of the cold air of 140 DEG C used of gas phase quenching in crystallizer will be reduced, this just needs the temperature of the high-temperature gas first reducing crystallizer entrance, just crystallization is started when being reduced to 265 DEG C because the pyroreactions of 320 DEG C generate gas, net quantity of heat when gas is directly reduced to 210 DEG C is generated from the pyroreaction of 320 DEG C so will reclaim, need not consider it is impossible now by the cold air quenching of 140 DEG C more than 3 times completely, because it is very difficult for solving Crystallization Plugging in heat-energy recovering apparatus.So fail from technique and all more satisfactory heat-energy recovering apparatus of configuration aspects always.
Summary of the invention
The purpose of this utility model is to provide the residual heat using device in a kind of preparation technology of melamine.
The purpose of this utility model is achieved through the following technical solutions, in the technique of one-step method gas phase quenching melamine, one heat-energy recovering apparatus is set between hot-air filter and crystallizer, described heat-energy recovering apparatus is duct type heat exchange of heat pipe, described duct type heat exchange of heat pipe is a columnar housing, longitudinally many heat exchanger tubes are provided with in described housing, high temperature gas passage is formed between described many longitudinal heat exchanger tubes, described heat exchanger tube is connected with drum, described high temperature gas passage is connected with crystallizer, generate gas from hot-air filter pyroreaction out and enter duct type heat exchange of heat pipe, by in heat exchanger during high temperature gas passage, cryogenic gas in its heat and heat exchanger tube exchanges, make it lower the temperature, and then enter crystallizer, drum is entered after cryogenic gas heat absorption in heat exchanger tube, in drum, enter heat exchanger tube again after cooling recycle.
The beneficial effects of the utility model: by arranging a duct type heat exchange of heat pipe between hot-air filter and crystallizer, can by from about the hot-air filter high-temperature reacting gas to 270 of 320 DEG C out DEG C, then the high-temperature reacting gas of 270 DEG C enters crystallizer again, the cold air quenching to 210 DEG C of 140 DEG C that enter with bottom, enter melamine collector after melamine crystallization, isolate melamine.So both reclaimed high-temperature reacting gas is down to 270 DEG C partial heat from 320 DEG C, can produce higher than 45kg/cm
2the high steam of high-quality, the cold air of 140 DEG C entering crystallizer bottom can also be made to reduce about 30%, reduce the power consumption of Cool gas blower, there is good economic benefit.
Accompanying drawing explanation
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing
Fig. 1 is schematic diagram of the present utility model
In figure: 1, housing 2, heat exchanger tube 3, high temperature gas passage 4, drum 5, crystallizer.
Detailed description of the invention
As shown in Figure 1, in the technique of one-step method gas phase quenching melamine, one duct type heat exchange of heat pipe is set between hot-air filter and crystallizer 5, duct type heat exchange of heat pipe is a columnar housing 1, longitudinally many heat exchanger tubes 2 are provided with in housing 1, high temperature gas passage 3 is formed between many longitudinal heat exchanger tubes 2, heat exchanger tube 2 is connected with drum 4, high temperature gas passage 3 is connected with crystallizer 5, generate gas from hot-air filter pyroreaction out and enter duct type heat exchange of heat pipe, by in heat exchanger during high temperature gas passage 3, cryogenic gas in its heat and heat exchanger tube 2 exchanges, make it lower the temperature, and then enter crystallizer 5, drum 4 is entered after cryogenic gas heat absorption in heat exchanger tube 2, in drum 4, enter heat exchanger tube 2 again after cooling recycle.
Claims (1)
1. the residual heat using device in a preparation technology of melamine, it is characterized in that between hot-air filter and crystallizer, arrange a heat-energy recovering apparatus, described heat-energy recovering apparatus is duct type heat exchange of heat pipe, described duct type heat exchange of heat pipe is a columnar housing, longitudinally many heat exchanger tubes are provided with in described housing, form high temperature gas passage between described many longitudinal heat exchanger tubes, described heat exchanger tube is connected with drum, and described high temperature gas passage is connected with crystallizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420511474.8U CN204084299U (en) | 2014-09-08 | 2014-09-08 | Residual heat using device in a kind of preparation technology of melamine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420511474.8U CN204084299U (en) | 2014-09-08 | 2014-09-08 | Residual heat using device in a kind of preparation technology of melamine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084299U true CN204084299U (en) | 2015-01-07 |
Family
ID=52177013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420511474.8U Expired - Fee Related CN204084299U (en) | 2014-09-08 | 2014-09-08 | Residual heat using device in a kind of preparation technology of melamine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204084299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235810A (en) * | 2014-09-08 | 2014-12-24 | 山东省舜天化工集团有限公司 | Heat energy recovery device for heat energy produced based on melamine |
| CN105061344A (en) * | 2015-08-09 | 2015-11-18 | 李东田 | Melamine slow-cooling crystallization production method |
-
2014
- 2014-09-08 CN CN201420511474.8U patent/CN204084299U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235810A (en) * | 2014-09-08 | 2014-12-24 | 山东省舜天化工集团有限公司 | Heat energy recovery device for heat energy produced based on melamine |
| CN105061344A (en) * | 2015-08-09 | 2015-11-18 | 李东田 | Melamine slow-cooling crystallization production method |
| CN105061344B (en) * | 2015-08-09 | 2017-09-22 | 李东田 | A kind of melamine slow cooling crystallizes production method |
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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: 20150107 Termination date: 20160908 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |