CN204607626U - Coal gas primary cooler waste heat ammonia steaming device - Google Patents
Coal gas primary cooler waste heat ammonia steaming device Download PDFInfo
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- CN204607626U CN204607626U CN201520268720.6U CN201520268720U CN204607626U CN 204607626 U CN204607626 U CN 204607626U CN 201520268720 U CN201520268720 U CN 201520268720U CN 204607626 U CN204607626 U CN 204607626U
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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
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses coal gas primary cooler waste heat ammonia steaming device, comprise ammonia still, ammonia still comprises flash zone, dephlegmator, ammonia still top is provided with remained ammonia import, wastewater outlet is provided with bottom flash zone, wastewater outlet top is provided with waterwater entrance, wastewater outlet is connected with waste water circulation pump, waste water circulation pump is connected with primary cooler epimere, primary cooler epimere is connected with the waterwater entrance on ammonia still flash zone top, the top exit of dephlegmator is connected with the entrance of condenser, the outlet of condenser is connected with the entrance in the middle part of gas-liquid separator, gas-liquid separator upper outlet is connected with vacuum system, the non-condensable gas that vacuum system is extracted out is sent back in gas line, outlet bottom gas-liquid separator is connected with follow-up system.The utility model utilizes high-temperature part heat in the saturated raw gas of gas recovery primary cooler as remained ammonia ammonia still process thermal source, decreases distilled ammonia wastewater discharge, substantially reduce the number the usage quantity of primary cooler recirculated cooling water, reach the target of energy-saving and emission-reduction.
Description
Technical field
The utility model relates to coke-oven gas UTILIZATION OF VESIDUAL HEAT IN and ammonia still process equipment technical field, and it relates to a kind of coal gas primary cooler waste heat ammonia steaming device.
Background technology
Containing NH in remained ammonia in coking industry
3, H
2the multiple harmful substances such as S, HCN, ammonium salt, have to pass through the wherein main objectionable impurities of distillation removing and just can deliver to biochemical class water treatment system, conventional remained ammonia distillation (ammonia still process) of the prior art generally adopts the method for water at atmospheric pressure steam stripped, and the defect that this method exists consumes a large amount of (water vapor) energy medium.
Coking industry is highly energy-consuming, high pollution industry, coking industry process also has a large amount of inferior heat energy to recycle simultaneously, prior art this type of technology disclosed has the two kinds of modes utilizing the ammonia still process of flue gases of cock oven waste heat and the ammonia still process of coke oven cycle ammoniacal liquor waste heat, flue gases of cock oven UTILIZATION OF VESIDUAL HEAT IN will consider the impact on coke oven chimney suction, and cyclic ammonia water UTILIZATION OF VESIDUAL HEAT IN will consider the impact on cooling system.
If 83 DEG C ~ 65 DEG C low-quality heats in saturated raw gas fully can be reclaimed, utilize this partial heat for remained ammonia distillation of reducing pressure, both the energy of a large amount of ammonia still process can have been saved, also the harmful substance contents of distilled ammonia wastewater can be reduced, decrease wastewater displacement simultaneously and the circulating cooling water consumption of primary cooler can be reduced, for energy-saving and emission-reduction important in inhibiting.
Utility model content
The purpose of this utility model is exactly the problems referred to above existed for solving prior art, provides a kind of coal gas primary cooler waste heat ammonia steaming device; The utility model utilizes the high-temperature part heat in the saturated raw gas of gas recovery primary cooler to distill the thermal source of (ammonia still process) as remained ammonia, does not need to provide thermal source separately, decreases distilled ammonia wastewater discharge simultaneously; Because distilled ammonia wastewater absorbs the heat of high temperature in primary cooler raw gas, thus substantially reduce the number the usage quantity of primary cooler recirculated cooling water, reach the target of energy-saving and emission-reduction.
A kind of coal gas primary cooler waste heat ammonia steaming device, comprise ammonia still, ammonia still comprises the flash zone of bottom, the dephlegmator on top, ammonia still is provided with remained ammonia import near top, wastewater outlet is provided with bottom described flash zone, wastewater outlet top is provided with waterwater entrance, described wastewater outlet is connected with waste water circulation pump intake by pipeline, described waste water circulation pump outlet is connected by the entrance of pipeline with primary cooler epimere, the outlet of primary cooler epimere is connected by the waterwater entrance of pipeline with ammonia still flash zone top, waste water through the heating of primary cooler epimere enters the top flash distillation of flash zone, flash steam is used for stripping distillation, the top exit of described dephlegmator is connected with the entrance of condenser by pipeline, the outlet of described condenser is connected with the entrance in the middle part of gas-liquid separator by pipeline, the outlet on gas-liquid separator top is connected with vacuum system inlet by pipeline, the non-condensable gas that vacuum system is extracted out is sent back in gas line, outlet bottom gas-liquid separator is connected with follow-up system by strong aqua pipeline.
Described primary cooler epimere is indirect heating, and the form of well heater can be tubular type or spiral plate type.
Described ammonia still can be board-like, material filling type or combination that is board-like and filler.
Described waste water circulation pump outlet is connected with biochemical water treatment system by pipeline.Thus send the process of biochemical water treatment system rectangle by unnecessary distilled ammonia wastewater.
The beneficial effects of the utility model:
1. the utility model utilizes the high-temperature part heat in the saturated raw gas of gas recovery primary cooler to distill the thermal source of (ammonia still process) as remained ammonia, does not need to provide thermal source separately, decreases distilled ammonia wastewater discharge simultaneously; Because distilled ammonia wastewater absorbs the heat of high temperature in primary cooler raw gas, thus substantially reduce the number the usage quantity of primary cooler recirculated cooling water, reach the target of energy-saving and emission-reduction.
1. the thermal source that distills as remained ammonia by utilizing 83 DEG C in the saturated raw gas of gas recovery primary cooler ~ 65 DEG C of low-quality heats of the utility model, does not need to provide thermal source separately, saves the energy in a large number.
2. the utility model adopts the mode of indirect heating waste water flash distillation, in ammonia still, is not blown into open steam, decreases distilled ammonia wastewater discharge.
3. the utility model distilled ammonia wastewater absorbs the heat of high temperature in primary cooler raw gas, thus decreases the usage quantity of primary cooler recirculated cooling water.
4. the utility model adopts reduced vacuum remained ammonia distillation mode, improves distillation efficiency, reduces the harmful substance contents of distilled ammonia wastewater, for subsequent biochemical class water treatment system creates conditions.
Accompanying drawing explanation
Fig. 1 is schema of the present utility model.
Embodiment
In order to understand the utility model better, explain embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, in figure, ammonia still bottom flash zone 1, ammonia still top dephlegmator 2, condenser 4, gas-liquid separator 5, vacuum system 6, waste water circulation pump 7, primary cooler epimere 8.A kind of coal gas primary cooler waste heat ammonia steaming device, comprise ammonia still 3, ammonia still 3 comprises the flash zone 1 of bottom, the dephlegmator 2 on top, ammonia still is provided with remained ammonia import 15 near top, wastewater outlet 9 is provided with bottom described flash zone 1, wastewater outlet top is provided with waterwater entrance 10, described wastewater outlet 9 is connected with waste water circulation pump 7 entrance by pipeline, the outlet of described waste water circulation pump 7 is connected by the entrance of pipeline with primary cooler epimere 8, the outlet of primary cooler epimere 8 is connected by the waterwater entrance 10 of pipeline with ammonia still flash zone top, the waste water heated through primary cooler epimere 8 enters the top flash distillation of flash zone 1, flash steam is used for stripping distillation, the top exit of described dephlegmator 2 is connected with the entrance 11 of condenser 4 by pipeline, the outlet of described condenser 4 is connected with the entrance 12 in the middle part of gas-liquid separator 5 by pipeline, the outlet 13 on gas-liquid separator 5 top is connected with vacuum system 6 entrance by pipeline, the non-condensable gas that vacuum system 6 is extracted out is sent back in gas line, outlet 14 bottom gas-liquid separator 5 is connected with follow-up system by strong aqua pipeline.
Described primary cooler epimere is indirect heating, and the form of well heater can be tubular type or spiral plate type.
Described ammonia still can be board-like, material filling type or combination that is board-like and filler.
The outlet of described waste water circulation pump 7 is connected with biochemical water treatment system by pipeline.Thus send the process of biochemical water treatment system rectangle by unnecessary distilled ammonia wastewater.
Silicon working process of the present utility model illustrates: remained ammonia (53 DEG C ~ 57 DEG C) enters in ammonia still tower by the remained ammonia import 15 near top, distilled ammonia wastewater (64 ~ 66 DEG C) enters waste water circulation pump by wastewater outlet bottom flash zone 9, force feed primary cooler epimere 8 is added by waste water circulation pump 7 liters, heat to after (70 DEG C ~ 75 DEG C) through primary cooler epimere 8 and send ammonia still flash zone top flash steam through waterwater entrance 10, unnecessary distilled ammonia wastewater send biochemical water treatment system; Remained ammonia is stripping distillation in ammonia still, distillation tower top ammonia vapour send condenser 4 condensing cooling to produce strong aqua after tower top dephlegmator 2 is concentrated, strong aqua enters gas-liquid separator 5 gas-liquid separation together with noncondensable gas, and non-condensable gas is extracted out by vacuum system, and follow-up system sent into by strong aqua; The non-condensable gas that vacuum system 6 is extracted out is sent in the suction gas line before gas blower.Wherein flash zone 1 upper temp is 64 ~ 66 DEG C, pressure is 24KPa ~ 25KPa (absolute pressure), and the head temperature of ammonia still 3 is 53 ~ 55 DEG C, pressure is 14.5KPa ~ 16KPa (absolute pressure).Remained ammonia is using the inferior heat in the saturated raw gas of gas recovery primary cooler as the thermal source of ammonia still process, and described inferior temperature range is 83 DEG C ~ 65 DEG C.The waste water of flash zone 1 directly enters primary cooler epimere and high temperature raw gas indirect heat exchange through waste water circulation pump 7.
The utility model utilizes the high-temperature part heat in the saturated raw gas of gas recovery primary cooler to distill the thermal source of (ammonia still process) as remained ammonia, does not need to provide thermal source separately, decreases distilled ammonia wastewater discharge simultaneously; Because distilled ammonia wastewater absorbs the heat of high temperature in primary cooler raw gas, thus substantially reduce the number the usage quantity of primary cooler recirculated cooling water; Reach the target of energy-saving and emission-reduction.
By reference to the accompanying drawings the embodiment of utility model is described although above-mentioned; but the restriction not to the utility model protection domain; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (4)
1. a coal gas primary cooler waste heat ammonia steaming device, comprise ammonia still, ammonia still comprises the flash zone of bottom, the dephlegmator on top, it is characterized in that, described ammonia still is provided with remained ammonia import near top, wastewater outlet is provided with bottom described flash zone, wastewater outlet top is provided with waterwater entrance, described wastewater outlet is connected with waste water circulation pump intake by pipeline, described waste water circulation pump outlet is connected by the entrance of pipeline with primary cooler epimere, the outlet of primary cooler epimere is connected by the waterwater entrance of pipeline with ammonia still flash zone top, waste water through the heating of primary cooler epimere enters the top flash distillation of flash zone, flash steam is used for stripping distillation, the top exit of described dephlegmator is connected with the entrance of condenser by pipeline, the outlet of described condenser is connected with the entrance in the middle part of gas-liquid separator by pipeline, the outlet on gas-liquid separator top is connected with vacuum system inlet by pipeline, the non-condensable gas that vacuum system is extracted out is sent back in gas line, outlet bottom gas-liquid separator is connected with follow-up system by strong aqua pipeline.
2. coal gas primary cooler waste heat ammonia steaming device as claimed in claim 1, it is characterized in that, described primary cooler epimere is indirect heating, and the form of well heater can be tubular type or spiral plate type.
3. coal gas primary cooler waste heat ammonia steaming device as claimed in claim 1, is characterized in that, described ammonia still adopts board-like, material filling type or combination that is board-like and filler.
4. coal gas primary cooler waste heat ammonia steaming device as claimed in claim 1, it is characterized in that, described waste water circulation pump outlet is connected with biochemical water treatment system by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268720.6U CN204607626U (en) | 2015-04-29 | 2015-04-29 | Coal gas primary cooler waste heat ammonia steaming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520268720.6U CN204607626U (en) | 2015-04-29 | 2015-04-29 | Coal gas primary cooler waste heat ammonia steaming device |
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| CN204607626U true CN204607626U (en) | 2015-09-02 |
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| CN201520268720.6U Active CN204607626U (en) | 2015-04-29 | 2015-04-29 | Coal gas primary cooler waste heat ammonia steaming device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787825A (en) * | 2015-04-29 | 2015-07-22 | 济南冶金化工设备有限公司 | Waste heat ammonia distillation device and waste heat ammonia distillation method for gas primary cooler |
| CN110092432A (en) * | 2019-04-19 | 2019-08-06 | 江苏永葆环保科技有限公司 | A kind of emulsifying liquid waste water low temperature aeration removes ammonia nitrogen technique and its production equipment |
| CN112499710A (en) * | 2020-10-20 | 2021-03-16 | 阮氏化工（常熟）有限公司 | Device and method for purifying ammonia water by using ammonia-containing wastewater |
-
2015
- 2015-04-29 CN CN201520268720.6U patent/CN204607626U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787825A (en) * | 2015-04-29 | 2015-07-22 | 济南冶金化工设备有限公司 | Waste heat ammonia distillation device and waste heat ammonia distillation method for gas primary cooler |
| CN110092432A (en) * | 2019-04-19 | 2019-08-06 | 江苏永葆环保科技有限公司 | A kind of emulsifying liquid waste water low temperature aeration removes ammonia nitrogen technique and its production equipment |
| CN112499710A (en) * | 2020-10-20 | 2021-03-16 | 阮氏化工（常熟）有限公司 | Device and method for purifying ammonia water by using ammonia-containing wastewater |
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