CN201598246U - Melamine and urea co-production heat energy recycling device - Google Patents
Melamine and urea co-production heat energy recycling device Download PDFInfo
- Publication number
- CN201598246U CN201598246U CN2009202411563U CN200920241156U CN201598246U CN 201598246 U CN201598246 U CN 201598246U CN 2009202411563 U CN2009202411563 U CN 2009202411563U CN 200920241156 U CN200920241156 U CN 200920241156U CN 201598246 U CN201598246 U CN 201598246U
- Authority
- CN
- China
- Prior art keywords
- urea
- pipeline
- ammonia
- communicated
- heat energy
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a melamine and urea co-production heat energy recycling device, which comprises a heater. An air outlet of the heater is communicated with a second ammonia storage tank through a pipeline; the second ammonia storage tank is connected with an air inlet end of a hot air filter; an air outlet end of the hot air filter is connected with a crystallizer; the crystallizer is connected with a drip catcher through a pipeline; the drip catcher is connected with an urea washing tower through a pipeline; an air inlet of the heater is communicated with a first ammonia storage tank; and the first ammonia storage tank is communicated with an air outlet of the urea washing tower through a pipeline. The melamine and urea co-production heat energy recycling device has the advantages: saving heat energy needed for liquid ammonia evaporation and heating the liquid ammonia to 45-50 DEG C, being capable of reducing use of cooling water and high-temperature heat sources, lowering production cost, arranging a heat exchanger on the urea washing tower, using heat energy generated by the urea washing tower to heat water inside the heat exchanger to generate high-temperature steam to be used for generating gas of a fixed bed of a synthesis ammonia device, reducing external energy use, increasing heat energy use ratio, lowering energy consumption and the like.
Description
Technical field
The utility model relates to trimeric cyanamide and urea combination preparing device field, specifically is a kind of trimeric cyanamide and urea coproduction heat energy re-use device.
Background technology
In existing trimeric cyanamide and the urea joint process, the gas ammonia that produces in the Urea Absorbing Tower, pressure are 0.8-1.8Mpa, temperature is 45-50 ℃, this part gas ammonia enters needs to lower the temperature processing before the withdrawing can, consumes a large amount of water coolants, and in Melamine Production, need input liquefied ammonia, use external steam that liquefied ammonia is heated then, make liquefied ammonia become temperature required gas ammonia, the usage quantity of high temperature heat source is also very high, cause the waste of the energy, the running cost height.Simultaneously, at trimeric cyanamide and urea joint process, produce caloric requirement when the urea washing tower uses and lower the temperature, existing apparatus often adopts air-cooled method, but this method cooling rate is slow, and the heat of urea washing tower generation simultaneously can't utilize once more, causes the waste of the energy.
Summary of the invention
The purpose of this utility model is to provide a kind of trimeric cyanamide and urea coproduction heat energy re-use device, it can solve the deficiency that exists in the known technology, the gas ammonia that Urea Absorbing Tower is produced stores in the gas-holder, use in order to Melamine Production, can reduce the use of water coolant and high temperature heat source.
The utility model for achieving the above object, be achieved through the following technical solutions: trimeric cyanamide and urea coproduction heat energy re-use device, comprise well heater, the well heater air outlet is communicated with the second ammonia gas-holder by pipeline, the second ammonia gas-holder is connected with hot gas filtration device inlet end, hot gas filtration device outlet side is connected with crystallizer, crystallizer is connected with trap by pipeline, trap is connected with the urea washing tower by pipeline, the well heater inlet mouth is communicated with the first ammonia gas-holder, and the first ammonia gas-holder is inhaled the tower air outlet by pipeline with urea one and is communicated with.
Mounting heat exchanger on the described urea washing tower, the interchanger water inlet pipe is communicated with the water source, and the interchanger escape pipe is communicated with synthetic ammonia installation static bed gas making device inlet mouth.
The beneficial effects of the utility model are: the gas ammonia that Urea Absorbing Tower is produced stores in the gas-holder, use in order to Melamine Production, can save the liquefied ammonia evaporation and be heated to 45-50 ℃ of required heat, can reduce the use of water coolant and high temperature heat source, reduce production costs; On the urea washing tower interchanger is set, the water heating that the heat heat exchanging device that utilizes the urea washing tower to produce is interior produces high-temperature steam, use in order to the synthetic ammonia installation static bed gas making, reduce extra power and use, improved the heat energy utilization rate, reduced energy consumption.The utility model also has simple for structure reasonable; Be beneficial to existing apparatus such as is transformed at advantage.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Embodiment
The utility model is described in further detail for the contrast accompanying drawing:
Agent structure having heaters 5 of the present utility model, well heater 5 air outlets are communicated with the second ammonia gas-holder 8 by pipeline, the second ammonia gas-holder 8 is connected with hot gas filtration device 10 inlet ends, hot gas filtration device 10 outlet sides are connected with crystallizer 9, crystallizer 9 is connected with trap 11 by pipeline, trap 11 is connected with urea washing tower 4 by pipeline, and described well heater 5 inlet mouths are communicated with the first ammonia gas-holder 6, and the first ammonia gas-holder 6 is inhaled tower 7 air outlets by pipeline with urea one and is communicated with.The ammonia temperature that urea one is inhaled the generation of tower 7 air outlets is 45-50 ℃, after the first ammonia gas-holder 6 stores this part ammonia, when needs use, be transported to well heater 5, because this moment, the ammonia temperature reached 45-50 ℃, so the relative existing apparatus of the utility model can be saved well heater 5 with liquefied ammonia evaporation and be heated to 45-50 ℃ of required heat, the heat that uses every kilogram of ammonia of the utility model can reduce 1400KJ uses, and greatly reduces production cost.
The utility model is further characterized in that: in order to make full use of the heat that urea washing tower 4 is produced, reduce extra power consumption, mounting heat exchanger 2 on urea washing tower 4, interchanger 2 water inlet pipes are communicated with water source 1, and interchanger 2 escape pipes are communicated with synthetic ammonia installation static bed gas making device 3 inlet mouths.When 4 work of urea washing tower, water enters interchanger 2 and adds the thermosetting high-temperature steam, enter then and carry out the gas making use in the synthetic ammonia installation static bed gas making device 3, improved energy utilization rate, adopt water-cooling pattern that urea washing tower 4 is lowered the temperature simultaneously, improved urea washing tower 4 rate of cooling.
Claims (2)
1. trimeric cyanamide and urea coproduction heat energy re-use device, comprise well heater (5), well heater (5) air outlet is communicated with the second ammonia gas-holder (8) by pipeline, the second ammonia gas-holder (8) is connected with hot gas filtration device (10) inlet end, hot gas filtration device (10) outlet side is connected with crystallizer (9), crystallizer (9) is connected with trap (11) by pipeline, trap (11) is connected with urea washing tower (4) by pipeline, it is characterized in that: well heater (5) inlet mouth is communicated with the first ammonia gas-holder (6), and the first ammonia gas-holder (6) is inhaled tower (7) air outlet by pipeline with urea one and is communicated with.
2. trimeric cyanamide according to claim 1 and urea coproduction heat energy re-use device, it is characterized in that: urea washing tower (4) is gone up mounting heat exchanger (2), interchanger (2) water inlet pipe is communicated with water source (1), and interchanger (2) escape pipe is communicated with synthetic ammonia installation static bed gas making device (3) inlet mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202411563U CN201598246U (en) | 2009-11-02 | 2009-11-02 | Melamine and urea co-production heat energy recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202411563U CN201598246U (en) | 2009-11-02 | 2009-11-02 | Melamine and urea co-production heat energy recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598246U true CN201598246U (en) | 2010-10-06 |
Family
ID=42809296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202411563U Expired - Fee Related CN201598246U (en) | 2009-11-02 | 2009-11-02 | Melamine and urea co-production heat energy recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598246U (en) |
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 |
| CN106621632A (en) * | 2016-12-30 | 2017-05-10 | 安徽昊源化工集团有限公司 | Low-level heat energy recycling method of urea scrubbing tower |
| CN108745208A (en) * | 2018-05-04 | 2018-11-06 | 辛集市九元化工有限责任公司 | Energy-saving device and method for dissolving solid urea in melamine production |
-
2009
- 2009-11-02 CN CN2009202411563U patent/CN201598246U/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 |
| CN106621632A (en) * | 2016-12-30 | 2017-05-10 | 安徽昊源化工集团有限公司 | Low-level heat energy recycling method of urea scrubbing tower |
| CN108745208A (en) * | 2018-05-04 | 2018-11-06 | 辛集市九元化工有限责任公司 | Energy-saving device and method for dissolving solid urea in melamine production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202381129U (en) | Power supplying system | |
| CN203394709U (en) | Waste heat conversion system | |
| CN202007991U (en) | Energy-saving liquid chlorine vaporization system | |
| CN201598246U (en) | Melamine and urea co-production heat energy recycling device | |
| CN103983039B (en) | Waste heat ammonia absorbs generating and cooling machine and liquefied ammonia TRT | |
| CN202055878U (en) | Industrial exhaust heat power generation system | |
| CN201772714U (en) | Drying equipment afterheat recycling device | |
| CN203187610U (en) | Methenamine production device | |
| CN202074505U (en) | Heat-conducting oil furnace tial-gas waste heat heating condensed water device | |
| CN204301354U (en) | Warm heat-energy utilizing device in a kind of synthetic ammonia | |
| CN205807387U (en) | Power plant's demineralized water absorbs residual neat recovering system | |
| CN212805234U (en) | Ethylene gasification system | |
| CN203893481U (en) | Waste heat ammonia absorption power generation refrigerating machine and liquid ammonia power generation device | |
| CN205400834U (en) | Ultralow grade waste heat power generation device of technology gas | |
| CN203308536U (en) | Synthesis ammonia blowing air waste heat recycling system | |
| CN203771781U (en) | Residual heat recovery system for steam preparation | |
| CN202625863U (en) | Polycrystalline silicon reduction furnace tail gas energy-saving system | |
| CN203068485U (en) | Closed type condensate water recovering equipment | |
| CN203478688U (en) | Low-grade heat energy recycling utilization device | |
| CN106679243B (en) | Refrigerating system capable of reducing liquid ammonia consumption | |
| CN201285190Y (en) | Apparatus for reclaiming reaction thermal energy | |
| CN206626848U (en) | One kind utilizes second-kind absorption-type heat pump recovery waste heat system | |
| CN218846098U (en) | Steam system based on hydrogen fuel cell waste heat | |
| CN203731738U (en) | Intelligent bi-directional energy-saving unit | |
| CN207610197U (en) | A kind of device producing steam using high-temperature molten salt waste heat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20121102 |