CN201089725Y - Device for neutralizing and concentrating ammonium nitrate - Google Patents
Device for neutralizing and concentrating ammonium nitrate Download PDFInfo
- Publication number
- CN201089725Y CN201089725Y CNU2007200266068U CN200720026606U CN201089725Y CN 201089725 Y CN201089725 Y CN 201089725Y CN U2007200266068 U CNU2007200266068 U CN U2007200266068U CN 200720026606 U CN200720026606 U CN 200720026606U CN 201089725 Y CN201089725 Y CN 201089725Y
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- neutralizer
- ammonium nitrate
- neutralizing
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- liquid bath
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Abstract
The utility model discloses a neutralizing condensing device for ammonium nitrate, belonging to a producing apparatus for the ammonium nitrate. The utility model comprises a neutralizer, a neutralizing fluid bath and a section of evaporation heater, wherein, a separator is arranged on a pipe between the neutralizer and the neutralizing fluid bath; the top of the neutralizer is connected with the section of evaporation heater through a pipe; the neutralizing fluid bath and the section of evaporation heater are connected with a flash drum and a secondary neutralizer through pipes; a neutralizing liquid pump is arranged on a pipe between the neutralizing fluid bath and the flash drum for aide. Compared with the prior art, the neutralizing condensing device for the ammonium nitrate of the utility model is characterized in reasonable design, high production efficiency, low cost, reduction of ammonia consumption, acid consumption and steam consumption, no pollution on the environment and so on.
Description
Technical field
The utility model relates to a kind of production equipment of ammonium nitrate, specifically a kind of ammonium nitrate in and concentrating unit.
Background technology
China has ammonium nitrate production ability 4,600,000 t/ China National Offshore Oil Corporation (CNOOC), Shandong Chem. Planning ﹠ Design Inst. now, the technology that adopts continued to use more than 80% that the former Soviet Union helps build during China's " First Five-Year Plan " in and pressure 0.02-0.05MP China National Offshore Oil Corporation (CNOOC), Shandong Chem. Planning ﹠ Design Inst.'s non-pressure process Ammonium Nitrate and equipment, there are the following problems for above-mentioned technology and equipment: 1, gas-liquid separator in the former technology neutralizer, adopt the separator inferior separating effect of bell-jar, secondary steam band liquid phenomenon is very general; 2, containing the nitric acid amount in the neutralizer outlet ammonium nitrate solution is 1-2g/l, temperature 105-120 ℃, go neutralizer ammonification again, because of the solution temperature height, the effect of ammonification is bad in neutralizer again, gas ammonia greatly causes the consumption height of ammonia with the blow-down pipe emptying of neutralizer again, has also caused environmental pollution; 3, one section evaporator evaporation effect is relatively poor, the heating steam that one section vaporizer is used is the secondary steam from neutralizer, the solution of evaporation is from neutralizer ammonium nitrate solution again, both temperature are more or less the same, pyritous ammonium nitrate solution one advances vaporizer, under suction function, generate air film at the generating tube inwall, the transmission of the inside and outside heat energy of influence pipe, heat-transfer effect is low, and the effective heat exchange area utilization ratio is low, when the concentration of raw material nitric acid is 45%, neutralizer ammonium nitrate exit concentration is that 65%, one section evaporator outlet concentration only has 72%-75%.
Summary of the invention
Technical assignment of the present utility model is at above weak point, and a kind of reduction ammonia consumption is provided, and the acid consumption is in a kind of ammonium nitrate of steam consumption, environmentally safe and concentrating unit.
The technical scheme that its technical problem that solves the utility model adopts is: this device comprise neutralizer, in and liquid bath and primary evaporator heater, neutralizer and in and the pipeline that connects between the liquid bath be provided with separator, the top of neutralizer links to each other with primary evaporator heater by pipeline, in and by pipe connection flash drum and neutralizer are again arranged between liquid bath and the primary evaporator heater, in and on the pipeline between liquid bath and the flash drum auxiliary have in and liquid pump.
The top of neutralizer is provided with flash trapping stage device and secondary separation device; The bottom of primary evaporator heater is provided with epimere interchanger and hypomere interchanger.
From rare nitric acid (45%) of rare nitre workshop section after nitric acid header tank and under meter metering, enter neutralizer, enter neutralizer through entering strainer and ammonia preheater behind the ammonia dashpot after by steam heating from the gas ammonia of synthesizing section, carry out neutralization reaction with nitric acid.The ammonium nitrate solution that reflects utilizes about reacting heat evaporation to 65% in neutralizer, enter and liquid bath after in and liquid pump (or pipeline) deliver to the flash drum flash distillation, flow automatically after fluid-tight by potential difference then and enter neutralizer again, add ammonia at this and make solution become slight alkalinity with excessive nitric acid reaction in the solution, the steam of being discharged by the neutralizer top enters one section vapor seperator earlier and uses as secondary steam after the inner two-stage vapor-liquid separating device separation of neutralizer.The interchanger of one section vapor seperator partly divides two sections, and the hypomere interchanger adopts the neutralizer secondary steam, and the epimere interchanger adopts the steam condensate of dual circulation.
Compare with prior art with concentrating unit in a kind of ammonium nitrate of the present utility model, have following characteristics:
1, be provided with the two-stage high efficiency air liquid separation device in the neutralizer, eliminated the phenomenon of secondary steam band liquid, reduce secondary steam simultaneously and carry ammonia, nitric acid and ammonium nitrate secretly, compare with existing installation, reduction is 60%～80%.
2, the temperature of the ammonium nitrate in the neutralizer is reduced to 75～80 ℃ again, and it is few to add the gas ammonia loss amount, and the loss reduction is more than 50%.
3, when concentration of nitric acid 45%, neutralizer outlet ammonium nitrate concn is about 65%, original equipment primary evaporator heater exit concentration 72～75%, and this equipment can be increased to 80%, and ton ammonium nitrate is saved steam 80～120kg.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing be a kind of ammonium nitrate in and the structural representation of concentrating unit.
Among the figure: 1, neutralizer, 2, the flash trapping stage device, 3, secondary separation device, 4, separator, 5, in and liquid bath, 6, pipeline, 7, in and liquid pump, 8, flash drum, 9, primary evaporator heater, 10, the epimere interchanger, 11, the hypomere interchanger, 12, neutralizer again.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
In a kind of ammonium nitrate of the present utility model and concentrating unit, its structure comprise neutralizer 1, in and liquid bath 5 and primary evaporator heater 9, neutralizer 1 and in and the pipeline 6 that connects between the liquid bath 5 be provided with separator 4, the top of neutralizer 1 links to each other with primary evaporator heater 9 by pipeline 6, in and be connected with flash drum 8 and neutralizer 12 again by pipeline 6 between liquid bath 5 and the primary evaporator heater 9, in and on the pipeline 6 between liquid bath 5 and the flash drum 8 auxiliary have in and liquid pump 7.The top of neutralizer 1 is provided with flash trapping stage device 2 and secondary separation device 3; The bottom of primary evaporator heater 9 is provided with epimere interchanger 10 and hypomere interchanger 11.
Very simple and convenient with its processing and fabricating of concentrating unit in a kind of ammonium nitrate of the present utility model, processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification sheets, be the known technology of those skilled in the art.
Claims (3)
- An ammonium nitrate in and concentrating unit, comprise neutralizer, in and liquid bath and primary evaporator heater, it is characterized in that neutralizer and in and the pipeline that connects between the liquid bath be provided with separator, the top of neutralizer links to each other with primary evaporator heater by pipeline, in and by pipe connection flash drum and neutralizer are again arranged between liquid bath and the primary evaporator heater, in and on the pipeline between liquid bath and the flash drum auxiliary have in and liquid pump.
- Ammonium nitrate according to claim 1 in and concentrating unit, it is characterized in that the top of neutralizer is provided with flash trapping stage device and secondary separation device.
- Ammonium nitrate according to claim 1 in and concentrating unit, it is characterized in that the bottom of primary evaporator heater is provided with epimere interchanger and hypomere interchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200266068U CN201089725Y (en) | 2007-08-15 | 2007-08-15 | Device for neutralizing and concentrating ammonium nitrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200266068U CN201089725Y (en) | 2007-08-15 | 2007-08-15 | Device for neutralizing and concentrating ammonium nitrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201089725Y true CN201089725Y (en) | 2008-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200266068U Expired - Lifetime CN201089725Y (en) | 2007-08-15 | 2007-08-15 | Device for neutralizing and concentrating ammonium nitrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201089725Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480309A (en) * | 2013-09-03 | 2014-01-01 | 安徽淮化股份有限公司 | Neutralizing device for normal-pressure production of ammonium nitrate from concentrated nitric acid |
| CN103771454A (en) * | 2013-12-27 | 2014-05-07 | 安徽淮化股份有限公司 | Ammonium nitrate neutralizing and controlling system |
| CN104310443A (en) * | 2014-10-10 | 2015-01-28 | 山东诺贝丰化学有限公司 | Continuous potassium nitrate production system and production method combined with production of liquid ammonium nitrate |
| CN104310428A (en) * | 2014-10-10 | 2015-01-28 | 山东诺贝丰化学有限公司 | Liquid ammonium nitrate production system and production method |
| CN104925828A (en) * | 2014-03-19 | 2015-09-23 | 内蒙古乌拉山化肥有限责任公司 | Ammonium nitrate production device and method thereof |
| CN106145072A (en) * | 2015-04-09 | 2016-11-23 | 辽宁庆阳特种化工有限公司 | A kind of to the processing method and processing device containing organic impurities dust technology |
| CN106365177A (en) * | 2016-08-18 | 2017-02-01 | 赛鼎工程有限公司 | Method for preparing concentrated ammonium nitrate solution through flash evaporation |
-
2007
- 2007-08-15 CN CNU2007200266068U patent/CN201089725Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480309A (en) * | 2013-09-03 | 2014-01-01 | 安徽淮化股份有限公司 | Neutralizing device for normal-pressure production of ammonium nitrate from concentrated nitric acid |
| CN103771454A (en) * | 2013-12-27 | 2014-05-07 | 安徽淮化股份有限公司 | Ammonium nitrate neutralizing and controlling system |
| CN104925828A (en) * | 2014-03-19 | 2015-09-23 | 内蒙古乌拉山化肥有限责任公司 | Ammonium nitrate production device and method thereof |
| CN104310443A (en) * | 2014-10-10 | 2015-01-28 | 山东诺贝丰化学有限公司 | Continuous potassium nitrate production system and production method combined with production of liquid ammonium nitrate |
| CN104310428A (en) * | 2014-10-10 | 2015-01-28 | 山东诺贝丰化学有限公司 | Liquid ammonium nitrate production system and production method |
| CN104310443B (en) * | 2014-10-10 | 2016-05-04 | 诺贝丰（中国）化学有限公司 | A kind ofly produce with liquid ammonium nitrate the continous way Production of Potassium Nitrate system and the production method that combine |
| CN106145072A (en) * | 2015-04-09 | 2016-11-23 | 辽宁庆阳特种化工有限公司 | A kind of to the processing method and processing device containing organic impurities dust technology |
| CN106365177A (en) * | 2016-08-18 | 2017-02-01 | 赛鼎工程有限公司 | Method for preparing concentrated ammonium nitrate solution through flash evaporation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNOOC CHEMICAL ENGINEERING CO., LTD. SHANDONG Free format text: FORMER OWNER: CHEMICAL ENGINEERING PLANNING DESIGN INSTITUTE, SHANDONG PROVINCE |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100422 Address after: 100010 Beijing City, Dongcheng District Chaoyangmen North Street, No. 25 building, Chinese CNOOC Offshore Oil Corporation, the Ministry of science and technology Co-patentee after: China National Offshore Oil Shandong Chemical Engineering Co., Ltd. Patentee after: China National Offshore Oil Corporation Address before: 100010 Beijing City, Dongcheng District Chaoyangmen North Street, No. 25 building, Chinese CNOOC Offshore Oil Corporation, the Ministry of science and technology Co-patentee before: Shandong Chemical Planning & Design Institute Patentee before: China National Offshore Oil Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080723 |