CN103833093B - Energy-saving and environment-friendly device and technology for producing concentrated ammonia water - Google Patents
Energy-saving and environment-friendly device and technology for producing concentrated ammonia water Download PDFInfo
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- CN103833093B CN103833093B CN201410115834.7A CN201410115834A CN103833093B CN 103833093 B CN103833093 B CN 103833093B CN 201410115834 A CN201410115834 A CN 201410115834A CN 103833093 B CN103833093 B CN 103833093B
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses an energy-saving and environment-friendly device and an energy-saving and environment-friendly technology for producing concentrated ammonia water and belongs to production of the concentrated ammonia water. The device comprises a heat conduction oil heat exchanger, a reboiler, a complete condenser, an ammonia steam cooler, a backflow slot, a non-condensed gas cooler, a vacuum injection pump and a circulating liquid pump, wherein the outlet end of an ammonia water backflow pump is divided into two paths, one path is connected with an ammonia steaming tower, and the other path is externally led; the other end of a wastewater pump is divided into three paths which are respectively connected with the ammonia steaming tower, a wastewater heat exchanger and an injection circulating water tank; and the injection circulating water tank is connected with the vacuum injection pump, the circulating liquid pump and a coal gas pipeline respectively. The method comprises the following steps of performing ammonia evaporation on residual ammonia water subjected to heat exchange, enabling the ammonia water formed by cooling ammonia steam after ammonia evaporating to enter the backflow slot, enabling non-condensed steam in the backflow slot to enter the injection circulating water tank after the non-condensed steam is cooled, dissolving a part of the non-condensed ammonia steam in circulating liquid, feeding tail gas of the non-condensed gas into the coal gas pipeline, flowing the formed finished product ammonia water back, and conveying the redundant finished product ammonia water to the outside. The energy-saving and environment-friendly device and the energy-saving and environment-friendly technology have the characteristics of greatly reducing the heat consumption, eliminating pollution of the ammonia steam to the environment and the like.
Description
Technical field
The present invention relates to a kind of production of strong aqua, especially a kind of device and technique being applied to the energy saving and environment friendly production strong aqua of coking industry.
Background technology
In process of coking, due to the nitrogen containing about 2% in coal, remained ammonia is together form with the constitution water generated during coking, containing the impurity such as tar, coal dust in this part ammoniacal liquor, its concentration is lower simultaneously, being allowed for access after having to pass through process next procedure, producing strong aqua coke-oven plant from for desulfurization or produce sulphur ammonium system as improved concentration rear.What in coking industry, produce that strong aqua generally applies is distillation method, Conventional espresso method adopts thermal source to heat remained ammonia, ammonia in ammoniacal liquor is become ammonia vapour from overhead extraction, need to consume a large amount of heats in still-process, simultaneously because produce at ambient pressure, the spilling of ammonia vapour can pollutant atmosphere.
At present, the solution also do not had.
Summary of the invention
Technical assignment of the present invention is the device and the technique that provide a kind of energy saving and environment friendly production strong aqua for above-mentioned deficiency of the prior art, the device of this kind of energy saving and environment friendly production strong aqua and technique have and add a set of vacuum unit, achieve the lower boiling distillation of material, greatly reduce the consumption of heat, again closed-loop operation simultaneously, eliminate the pollution of ammonia vapour to environment, reach the feature of the requirement of energy-saving and emission-reduction new technology and environmental protection.
The technical solution adopted for the present invention to solve the technical problems is:
The device of a kind of energy saving and environment friendly production strong aqua of the present invention, it comprises remained ammonia groove, wastewater heat exchange device, heat-condutive oil heat exchanger, ammonia still, reboiler, waste water pump, complete condenser, ammonia vapour water cooler, backflash, ammoniacal liquor reflux pump, non-condensable gas water cooler, vacuum jet pump, spraying cycle tank and recycle liquid pump; Described remained ammonia groove, wastewater heat exchange device, heat-condutive oil heat exchanger, ammonia still, complete condenser, ammonia vapour water cooler, backflash are connected successively with ammoniacal liquor reflux pump; The exit end of described ammoniacal liquor reflux pump divides two-way, and a road is connected with ammonia still, and another road is sent outside; The bottom of described ammonia still is provided with waste water pump; The other end of described waste water pump divides three tunnels, and reboiler of leading up to is connected with ammonia still, and a road is connected with wastewater heat exchange device, and another road is connected with spraying cycle tank; Described wastewater heat exchange device one end is sent pipeline outside with waste water and is connected, and described spraying cycle tank one end is connected with vacuum jet pump, and the other end is connected with recycle liquid pump, and top is connected with gas line; Non-condensable gas water cooler is provided with between described vacuum jet pump and backflash top.
Circulation fluid water cooler is provided with between described recycle liquid pump and spraying cycle tank.
The technique of a kind of energy saving and environment friendly production strong aqua of the present invention, is comprised the following steps: extracted out by remained ammonia pump by remained ammonia in remained ammonia groove, after delivering to wastewater heat exchange device and heat-condutive oil heat exchanger heat exchange, then enters ammonia still and carries out ammonia still process, the thermal wastewater formed bottom ammonia still after ammonia still process is extracted out by waste water pump, one tunnel enters after wastewater heat exchange device and remained ammonia carry out heat exchange and sends outside, one tunnel is beaten to spraying cycle tank, reboiler is squeezed on one tunnel, by reboiler, thermal wastewater is heated up to vaporize, the steam produced after vaporization returns in ammonia still, as the termite of ammonia still, after ammonia still process, ammonia still top ammonia vapour enters complete condenser and ammonia vapour water cooler cools, the ammoniacal liquor formed after cooling enters backflash, under the backflash top section suction that condensing does not produce at vacuum jet pump, enter non-condensable gas water cooler, spraying cycle tank is entered through vacuum jet pump again after the cooling of non-condensable gas water cooler, part ammonia vapour in non-condensable gas is dissolved in the circulation fluid in spraying cycle tank, all the other non-condensable gas tail gas enter gas line, the finished product ammoniacal liquor formed in backflash is extracted out by ammoniacal liquor reflux pump, beat to ammonia still overhead reflux, all the other finished product ammoniacal liquor are sent outside, send outside through recycle liquid pump after the circulation fluid in spraying cycle tank reaches setting concentration containing ammonia, supplement distilled ammonia wastewater more afterwards, for reducing injection circulation fluid temperature gas clean-up, extracting after part injection circulation fluid send circulation fluid water cooler to cool with recycle liquid pump and returning spraying cycle tank.
The device of a kind of energy saving and environment friendly production strong aqua of the present invention and technique are compared to the prior art, there is following outstanding beneficial effect: add the vacuum jet pump producing negative pressure, by the pressure in reduction ammonia still to reach the boiling point reducing remained ammonia, greatly reduce the consumption of heat, ammonia still pressure is less than barometric point, is in vacuum state; Because production equipment is in airtight, there is no the excessive of ammonia vapour, can not environmental pollution be caused; The non-condensable gas that ammonia still process process produces is incorporated to gas line, improves environment; The strong aqua produced enters HPF desulphurization system and uses by oneself, and does not need outsourcing alkali source again.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of energy saving and environment friendly production strong aqua;
Description of reference numerals: 1 remained ammonia groove, 2 wastewater heat exchange devices, 3 heat-condutive oil heat exchangers, 4 ammonia stills, 5, remained ammonia pump, 6 waste water pumps, 7 reboilers, 8 ammoniacal liquor reflux pumps, 9 backflashes, 10 ammonia vapour water coolers, 11 complete condensers, 12 non-condensable gas water coolers, 13 spraying cycle tanks, 14 circulation fluid water coolers, 15 vacuum jet pumps, 16 recycle liquid pumps.
Embodiment
With reference to Figure of description 1, the device of a kind of energy saving and environment friendly production strong aqua of the present invention and technique are described in detail below.
The device of a kind of energy saving and environment friendly production strong aqua of the present invention, it comprises remained ammonia groove 1, wastewater heat exchange device 2, heat-condutive oil heat exchanger 3, ammonia still 4, reboiler 7, waste water pump 6, complete condenser 11, ammonia vapour water cooler 10, backflash 9, ammoniacal liquor reflux pump 8, non-condensable gas water cooler 12, vacuum jet pump 15, spraying cycle tank 13 and recycle liquid pump 16; Described remained ammonia groove 1, wastewater heat exchange device 2, heat-condutive oil heat exchanger 3, ammonia still 4, complete condenser 11, ammonia vapour water cooler 10, backflash 9 are connected successively with ammoniacal liquor reflux pump 8; The exit end of described ammoniacal liquor reflux pump 8 divides two-way, and a road is connected with ammonia still 4, and another road is sent outside; The bottom of described ammonia still 4 is provided with waste water pump 6; The other end of described waste water pump 6 divides three tunnels, and reboiler 7 of leading up to is connected with ammonia still 4, and a road is connected with wastewater heat exchange device 2, and another road is connected with spraying cycle tank 13; Described wastewater heat exchange device 2 one end is sent pipeline outside with waste water and is connected, and described spraying cycle tank 13 one end is connected with vacuum jet pump 15, and the other end is connected with recycle liquid pump 16, and top is connected with gas line; Non-condensable gas water cooler 12 is provided with between described vacuum jet pump 15 and backflash 9 top.
Circulation fluid water cooler 14 is provided with between described recycle liquid pump 16 and spraying cycle tank 13.
The technique of a kind of energy saving and environment friendly production strong aqua of the present invention, is comprised the following steps: extracted out by remained ammonia pump 5 by remained ammonia in remained ammonia groove 1, after delivering to wastewater heat exchange device 2 and heat-condutive oil heat exchanger 3 heat exchange, then enters ammonia still 4 and carries out ammonia still process, the thermal wastewater formed bottom ammonia still 4 after ammonia still process is extracted out by waste water pump 6, one tunnel enters after wastewater heat exchange device 2 carries out heat exchange with remained ammonia and sends outside, one tunnel is beaten to spraying cycle tank 13, reboiler 7 is squeezed on one tunnel, by reboiler 7, thermal wastewater is heated up to vaporize, the steam produced after vaporization returns in ammonia still 4, as the termite of ammonia still 4, after ammonia still process, ammonia still 4 top ammonia vapour enters complete condenser 11 and ammonia vapour water cooler 10 cools, the ammoniacal liquor formed after cooling enters backflash 9, under the backflash 9 top section suction that condensing does not produce at vacuum jet pump 15, enter non-condensable gas water cooler 12, spraying cycle tank 13 is entered through vacuum jet pump 15 again after non-condensable gas water cooler 12 cools, part ammonia vapour in non-condensable gas is dissolved in the circulation fluid in spraying cycle tank 13, all the other non-condensable gas tail gas enter gas line, the finished product ammoniacal liquor formed in backflash 9 is extracted out by ammoniacal liquor reflux pump 8, beat to ammonia still 4 overhead reflux, all the other finished product ammoniacal liquor are sent outside, send outside through recycle liquid pump 16 after the circulation fluid in spraying cycle tank 13 reaches setting concentration containing ammonia, to remained ammonia groove or finished product ammonia vessel, supplement distilled ammonia wastewater more afterwards, for reducing injection circulation fluid temperature gas clean-up, extracting after part injection circulation fluid send circulation fluid water cooler 14 to cool with recycle liquid pump 16 and returning spraying cycle tank 13.
Except the technical characteristic described in specification sheets, be the known technology of those skilled in the art.
Claims (3)
1. a device for energy saving and environment friendly production strong aqua, is characterized in that: comprise remained ammonia groove, wastewater heat exchange device, heat-condutive oil heat exchanger, ammonia still, reboiler, waste water pump, complete condenser, ammonia vapour water cooler, backflash, ammoniacal liquor reflux pump, non-condensable gas water cooler, vacuum jet pump, spraying cycle tank and recycle liquid pump; Described remained ammonia groove, wastewater heat exchange device, heat-condutive oil heat exchanger, ammonia still, complete condenser, ammonia vapour water cooler, backflash are connected successively with ammoniacal liquor reflux pump; The exit end of described ammoniacal liquor reflux pump divides two-way, and a road is connected with ammonia still, and another road is sent outside; The bottom of described ammonia still is provided with waste water pump; The other end of described waste water pump divides three tunnels, and reboiler of leading up to is connected with ammonia still, and a road is connected with wastewater heat exchange device, and another road is connected with spraying cycle tank; Described wastewater heat exchange device one end is sent pipeline outside with waste water and is connected, and described spraying cycle tank one end is connected with vacuum jet pump, and the other end is connected with recycle liquid pump, and top is connected with gas line; Non-condensable gas water cooler is provided with between described vacuum jet pump and backflash top.
2. the device of a kind of energy saving and environment friendly production strong aqua according to claim 1, is characterized in that: be provided with circulation fluid water cooler between described recycle liquid pump and spraying cycle tank.
3. a technique for energy saving and environment friendly production strong aqua, is characterized in that: comprise the following steps: extracted out by remained ammonia pump by remained ammonia in remained ammonia groove, after delivering to wastewater heat exchange device and heat-condutive oil heat exchanger heat exchange, then enters ammonia still and carries out ammonia still process, the thermal wastewater formed bottom ammonia still after ammonia still process is extracted out by waste water pump, one tunnel enters after wastewater heat exchange device and remained ammonia carry out heat exchange and sends outside, one tunnel is beaten to spraying cycle tank, reboiler is squeezed on one tunnel, by reboiler, thermal wastewater is heated up to vaporize, the steam produced after vaporization returns in ammonia still, as the termite of ammonia still, after ammonia still process, ammonia still top ammonia vapour enters complete condenser and ammonia vapour water cooler cools, the ammoniacal liquor formed after cooling enters backflash, under the backflash top section suction that condensing does not produce at vacuum jet pump, enter non-condensable gas water cooler, spraying cycle tank is entered through vacuum jet pump again after the cooling of non-condensable gas water cooler, part ammonia vapour in non-condensable gas is dissolved in the circulation fluid in spraying cycle tank, all the other non-condensable gas tail gas enter gas line, the finished product ammoniacal liquor formed in backflash is extracted out by ammoniacal liquor reflux pump, beat to ammonia still overhead reflux, all the other finished product ammoniacal liquor are sent outside, send outside through recycle liquid pump after the circulation fluid in spraying cycle tank reaches setting concentration containing ammonia, supplement distilled ammonia wastewater more afterwards, for reducing injection circulation fluid temperature gas clean-up, extracting after part injection circulation fluid send circulation fluid water cooler to cool with recycle liquid pump and returning spraying cycle tank.
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| CN201410115834.7A CN103833093B (en) | 2014-03-26 | 2014-03-26 | Energy-saving and environment-friendly device and technology for producing concentrated ammonia water |
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| CN201410115834.7A CN103833093B (en) | 2014-03-26 | 2014-03-26 | Energy-saving and environment-friendly device and technology for producing concentrated ammonia water |
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| CN103833093A CN103833093A (en) | 2014-06-04 |
| CN103833093B true CN103833093B (en) | 2015-03-18 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104193060A (en) * | 2014-08-29 | 2014-12-10 | 中国五环工程有限公司 | Multiple-effect evaporation technique and system for coal chemical industry device concentrated brine |
| CN104709954B (en) * | 2015-03-25 | 2016-08-17 | 山东钢铁股份有限公司 | Flue gases of cock oven waste heat ammonia still process desulphurization integrated system |
| CN104860465B (en) * | 2015-05-22 | 2017-01-11 | 江西耐可化工设备填料有限公司 | Double-tower catalysis thermal-coupling reflux deamination method and deamination device thereof |
| CN104888581B (en) * | 2015-06-05 | 2017-03-29 | 深圳市源禹环保科技有限公司 | Tiny structure high concentration ammoniacal liquor preparation method and preparation sled block |
| CN106334326A (en) * | 2016-09-28 | 2017-01-18 | 山东铁雄冶金科技有限公司 | Coking residual ammonia water distilling process |
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| CN103523844A (en) * | 2013-11-04 | 2014-01-22 | 内蒙古金石镁业有限公司 | Ammonia stilling system and process |
| CN203411359U (en) * | 2013-07-31 | 2014-01-29 | 张卫东 | Device for processing residual ammonia water of coke oven with negative pressure flash evaporation method |
| CN103570090A (en) * | 2013-10-25 | 2014-02-12 | 安阳市恒威石化设备有限责任公司 | Negative-pressure ammonia stilling system in coking plant and negative-pressure ammonia stilling process method |
| CN203890081U (en) * | 2014-03-26 | 2014-10-22 | 济钢集团有限公司 | Environment-friendly energy-saving device for producing concentrated ammonia water |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203411359U (en) * | 2013-07-31 | 2014-01-29 | 张卫东 | Device for processing residual ammonia water of coke oven with negative pressure flash evaporation method |
| CN103570090A (en) * | 2013-10-25 | 2014-02-12 | 安阳市恒威石化设备有限责任公司 | Negative-pressure ammonia stilling system in coking plant and negative-pressure ammonia stilling process method |
| CN103523844A (en) * | 2013-11-04 | 2014-01-22 | 内蒙古金石镁业有限公司 | Ammonia stilling system and process |
| CN203890081U (en) * | 2014-03-26 | 2014-10-22 | 济钢集团有限公司 | Environment-friendly energy-saving device for producing concentrated ammonia water |
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