CN102616814A - Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment - Google Patents
Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment Download PDFInfo
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- CN102616814A CN102616814A CN2012100619879A CN201210061987A CN102616814A CN 102616814 A CN102616814 A CN 102616814A CN 2012100619879 A CN2012100619879 A CN 2012100619879A CN 201210061987 A CN201210061987 A CN 201210061987A CN 102616814 A CN102616814 A CN 102616814A
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Abstract
The invention discloses equipment for recovering water vapor in heavy ash furnace gas and a method for recovering the water vapor in the heavy ash furnace gas by using the equipment. The method is characterized by comprising the following steps of mixing furnace gas from a high-quality heavy ash furnace with part of furnace gas from a general heavy ash furnace; then washing the mixed furnace gas with washing water through a furnace gas washing tower; regulating and controlling the furnace gas through a gas amount control device and then transmitting the controlled furnace gas to an ammonia still waste liquid two-flash gas outlet header pipe through a vacuum pipeline; and mixing the furnace gas with ammonia still two-flash gas from an ammonia still waste liquid two-flash tank and then feeding the mixed gas into a light liquid distillation tower for stilling ammonia. Under vacuum difference, the furnace gas automatically enters the light liquid distillation tower, so that the furnace gas is utilized and novel power equipment is not needed to be added; the conveying of the furnace gas is finished by the vacuum pipeline; the water vapor in the furnace gas is used instead of part of steam, so that the production consumption of the steam is reduced and energy consumption is reduced; and in addition, the vacuum difference is greater, condensed water can be avoided and the phenomenon that the pipeline is blocked is avoided.
Description
Technical field
The present invention relates to the alkali making technology field, relate in particular to and a kind ofly make in the heavy grey furnace gas of alkali the water vapour recovery system and utilize this equipment to reclaim the method for water vapour in the heavy grey furnace gas.
Background technology
In soda ash was produced, the heavy grey ratio of ammonia alkali factory was generally higher, and the furnace gas that common heavy grey stove produces is after giving the temperature raising of cold mother liquor heat exchange project, and the water heat exchange that is cooled of some furnace gas heat is removed and slatterned; The furnace gas heat that the heavy grey stove of high-quality produces has a large amount of 90～95 ℃ water vapour because low being difficult to of grade carries after giving the temperature raising of whizzer wash water, so all directly emit, both wasted the energy, has influenced environment again.
The light liquid distillation tower of distillation process generally also need replenish a small amount of LP steam, under the ordinary production load condition, replenishes the living quantity of steam of 0.5MPa and is about 6t/h.Because of mostly heavy grey furnace gas composition after the wash water washing is water vapor, conditions such as its composition and pressure, temperature meet light liquid distillation tower with the vapour needs, but can produce the condensed water blocking pipe in the course of conveying.
Summary of the invention
Technical problem to be solved by this invention provide a kind of simple in structure, carry effective, can not produce condensed water, save energy, water vapour recovery system in the grey furnace gas of weight that furnace gas is effectively utilized.
For solving the problems of the technologies described above; Technical scheme of the present invention is: water vapour recovery system in a kind of heavy grey furnace gas; Comprise the furnace gas washing tower; Said furnace gas washing tower top is communicated to the entrance end of vacuum pipeline, and the exit end of said vacuum pipeline is communicated to evaporated waste ammonia liquid two and dodges the vapour house steward that gives vent to anger, and the tolerance gear is installed on the said vacuum pipeline; Said evaporated waste ammonia liquid two dodges the vapour house steward's entrance end of giving vent to anger and is communicated to evaporated waste ammonia liquid two and dodges jar, and said evaporated waste ammonia liquid two dodges the vapour house steward's exit end of giving vent to anger and is communicated to light liquid distillation tower.
As the improvement to technique scheme, the sidewall pipeline of said vacuum pipeline is communicated to fan, and unnecessary furnace gas is discharged through fan.
As optimized technical scheme; Said tolerance gear comprises the weather gage of installing on the said vacuum pipeline; Air inlet one side of said vacuum pipeline is equipped with the air intake control valve door; The side of giving vent to anger of said vacuum pipeline is equipped with the leaving air control valve door, through regulating and control said air intake control valve door and leaving air control valve door adjustment air input.
Principle of work: after will mixing from the furnace gas of common heavy grey stove from the furnace gas of the heavy grey stove of high-quality and part, wash with wash water through said furnace gas washing tower, furnace gas is delivered to evaporated waste ammonia liquid two through the control of tolerance gear through vacuum pipeline and dodges the vapour house steward that gives vent to anger; Furnace gas and dodge from the ammonia still process two that said evaporated waste ammonia liquid two dodges jar and to send into light liquid distillation tower ammonia still process after vapour mix and use since the furnace gas pressure that uses the wash water washing to obtain through said furnace gas washing tower be-1～-5kPa, pressure is the relative vacuum degree with respect to standard atmospheric pressure here; Temperature is 95～99 ℃, said light liquid distillation tower internal pressure is-35～-40kPa, pressure is the relative vacuum degree with respect to standard atmospheric pressure here; Temperature is 88～92 ℃; Furnace gas gets into said light liquid distillation tower automatically under the vacuum difference like this, has so both utilized furnace gas, need not increase new power-equipment again; Accomplished the conveying of furnace gas through vacuum pipeline; Partly give birth to the steam use because of the water vapor gas in the furnace gas has been substituted, practiced thrift living steam consumption, reduced energy consumption; And because the vacuum difference more very much not can produce condensed water, can blocking pipe.
Another technical problem to be solved by this invention provide a kind of carry effective, can not produce condensed water, save energy, the water vapour recovery system reclaims water vapour in the heavy grey furnace gas in the heavy grey furnace gas of utilization that furnace gas is effectively utilized method.
For solving the problems of the technologies described above; Technical scheme of the present invention is: the water vapour recovery system reclaims the method for water vapour in the heavy grey furnace gas in the heavy grey furnace gas of utilization; After will weighing the furnace gas and the furnace gas mixing of part of grey stove from high-quality from common heavy grey stove; Wash with wash water through said furnace gas washing tower; Furnace gas dodges the vapour house steward that gives vent to anger through the regulation and control of tolerance gear after vacuum pipeline is delivered to evaporated waste ammonia liquid two, furnace gas and dodge from the ammonia still process two that said evaporated waste ammonia liquid two dodges jar and to send into light liquid distillation tower ammonia still process after vapour mix and use.
The furnace gas pressure that uses the wash water washing to obtain through said furnace gas washing tower is-1～-5kPa, temperature is 95～99 ℃, said light liquid distillation tower internal pressure is-35～-40kPa, temperature is 88～92 ℃.
As optimized technical scheme, said tolerance gear comprises the weather gage of installing on the said vacuum pipeline, and air inlet one side of said vacuum pipeline is equipped with the air intake control valve door, and the side of giving vent to anger of said vacuum pipeline is equipped with the leaving air control valve door.
As the improvement to technique scheme, the unicom pipeline of said vacuum pipeline is communicated to fan, and the furnace gas that does not have to utilize is discharged through said fan.
Owing to adopted technique scheme, water vapour recovery system in a kind of heavy grey furnace gas comprises the furnace gas washing tower; Said furnace gas washing tower top is communicated to the entrance end of vacuum pipeline, and the exit end of said vacuum pipeline is communicated to evaporated waste ammonia liquid two and dodges the vapour house steward that gives vent to anger, and the tolerance gear is installed on the said vacuum pipeline; Said evaporated waste ammonia liquid two dodges the vapour house steward's entrance end of giving vent to anger and is communicated to evaporated waste ammonia liquid two and dodges jar, and said evaporated waste ammonia liquid two dodges the vapour house steward's exit end of giving vent to anger and is communicated to light liquid distillation tower, and the method for utilizing this equipment to reclaim water vapour in the heavy grey furnace gas is with after mixing from the furnace gas of common heavy grey stove from the furnace gas of the heavy grey stove of high-quality and part; Wash with wash water through said furnace gas washing tower, furnace gas dodges the vapour house steward that gives vent to anger through the regulation and control of tolerance gear after vacuum pipeline is delivered to evaporated waste ammonia liquid two, furnace gas and dodge from the ammonia still process two that said evaporated waste ammonia liquid two dodges jar and to send into light liquid distillation tower ammonia still process after vapour mix and use; Because the furnace gas pressure that uses the wash water washing to obtain through said furnace gas washing tower is-1～-5kPa, temperature is 95～99 ℃, said light liquid distillation tower internal pressure is-35～-40kPa; Temperature is 88～92 ℃; Furnace gas gets into said light liquid distillation tower automatically under the vacuum difference like this, has so both utilized furnace gas, need not increase new power-equipment again; Accomplished the conveying of furnace gas through vacuum pipeline; Use because of the water vapor gas in the furnace gas having been substituted part steam, practiced thrift living steam consumption, reduced energy consumption; And because the vacuum difference more very much not can produce condensed water, can blocking pipe.
Description of drawings
Accompanying drawing is the structural representation of the embodiment of the invention;
Among the figure: 1-furnace gas washing tower; The 2-vacuum pipeline; 3-evaporated waste ammonia liquid two dodges the vapour house steward that gives vent to anger; 4-evaporated waste ammonia liquid two dodges jar; The light liquid distillation tower of 5-; The 6-fan; The 7-weather gage; 8-air intake control valve door; 9-leaving air control valve door.
Embodiment
Below in conjunction with embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment:
Shown in accompanying drawing; Water vapour recovery system in a kind of heavy grey furnace gas comprises furnace gas washing tower 1, and said furnace gas washing tower 1 top is communicated to the entrance end of vacuum pipeline 2; The exit end of said vacuum pipeline 2 is communicated to evaporated waste ammonia liquid two and dodges the vapour house steward 3 that gives vent to anger; On the said vacuum pipeline 2 the tolerance gear is installed, said evaporated waste ammonia liquid two dodges vapour house steward's 3 entrance ends of giving vent to anger and is communicated to evaporated waste ammonia liquid two and dodges jars 4, and said evaporated waste ammonia liquid two dodges vapour house steward's 3 exit end of giving vent to anger and is communicated to light liquid distillation tower 5.
The sidewall pipeline of said vacuum pipeline 2 is communicated to fan 6, and unnecessary furnace gas is discharged through fan 6.
Said tolerance gear comprises the weather gage of installing on the said vacuum pipeline 27; Air inlet one side of said vacuum pipeline 2 is equipped with air intake control valve door 8; The side of giving vent to anger of said vacuum pipeline 2 is equipped with leaving air control valve door 9, through regulating and control said air intake control valve door 8 and leaving air control valve door 9 adjustment air inputs.
During work, after will mixing from the furnace gas of common heavy grey stove from the furnace gas of the heavy grey stove of high-quality and part, wash through said furnace gas washing tower 1 usefulness wash water; Furnace gas dodges vapour give vent to anger house steward 3 with leaving air control valve door 9 adjustment air inputs after vacuum pipeline 2 is delivered to evaporated waste ammonia liquid two through regulating and control said air intake control valve door 8, furnace gas and dodge jars 4 ammonia still process two from evaporated waste ammonia liquid two and dodge and send into light liquid distillation tower 5 ammonia still processs after vapour mix and use since the furnace gas pressure that uses the wash water washing to obtain through said furnace gas washing tower 1 be-1～-5kPa; Temperature is 95～99 ℃, said light liquid distillation tower 5 internal pressures are-35～-40kPa, temperature is 88～92 ℃; Furnace gas gets into said light liquid distillation tower 5 automatically under the vacuum difference like this; So both utilize furnace gas, and need not increase new power-equipment again, accomplished the conveying of furnace gas through vacuum pipeline 2; Use because of the water vapor gas in the furnace gas having been substituted part steam; Practice thrift living steam consumption, reduced energy consumption, and because the vacuum difference more very much not can produce condensed water; Can blocking pipe, unnecessary furnace gas is discharged through fan 6.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification sheets just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
All are from design of the present invention, and the structural transformation of having done without creative work all drops within protection scope of the present invention.
Claims (7)
1. water vapour recovery system in the grey furnace gas of weight; Comprise the furnace gas washing tower; It is characterized in that: said furnace gas washing tower top is communicated to the entrance end of vacuum pipeline, and the exit end of said vacuum pipeline is communicated to evaporated waste ammonia liquid two and dodges the vapour house steward that gives vent to anger, and the tolerance gear is installed on the said vacuum pipeline; Said evaporated waste ammonia liquid two dodges the vapour house steward's entrance end of giving vent to anger and is communicated to evaporated waste ammonia liquid two and dodges jar, and said evaporated waste ammonia liquid two dodges the vapour house steward's exit end of giving vent to anger and is communicated to light liquid distillation tower.
2. water vapour recovery system in a kind of heavy grey furnace gas as claimed in claim 1, it is characterized in that: the unicom pipeline of said vacuum pipeline is communicated to fan.
3. water vapour recovery system in a kind of heavy grey furnace gas as claimed in claim 1; It is characterized in that: said tolerance gear comprises the weather gage of installing on the said vacuum pipeline; Air inlet one side of said vacuum pipeline is equipped with the air intake control valve door, and the side of giving vent to anger of said vacuum pipeline is equipped with the leaving air control valve door.
4. utilize the method that reclaims water vapour in the heavy grey furnace gas like water vapour recovery system in the described heavy grey furnace gas of the arbitrary claim of claim 1 to 3; It is characterized in that: after will weighing the furnace gas and the furnace gas mixing of part of grey stove from high-quality from common heavy grey stove; Wash with wash water through said furnace gas washing tower; Furnace gas is delivered to evaporated waste ammonia liquid two through the control of tolerance gear through vacuum pipeline and dodges the vapour house steward that gives vent to anger, furnace gas and dodge jar said ammonia still process two from evaporated waste ammonia liquid two and dodge and send into light liquid distillation tower ammonia still process after vapour mix and use.
5. the water vapour recovery system reclaims the method for water vapour in the heavy grey furnace gas in the heavy grey furnace gas of utilization as claimed in claim 4; It is characterized in that: the furnace gas pressure that uses the wash water washing to obtain through said furnace gas washing tower is-1～-5kPa; Temperature is 95～99 ℃; Said light liquid distillation tower internal pressure is-35～-40kPa, temperature is 88～92 ℃.
6. the water vapour recovery system reclaims the method for water vapour in the heavy grey furnace gas in the heavy grey furnace gas of utilization as claimed in claim 4; It is characterized in that: said tolerance gear comprises the weather gage of installing on the said vacuum pipeline; Air inlet one side of said vacuum pipeline is equipped with the air intake control valve door, and the side of giving vent to anger of said vacuum pipeline is equipped with the leaving air control valve door.
7. the water vapour recovery system reclaims the method for water vapour in the heavy grey furnace gas in the heavy grey furnace gas of utilization as claimed in claim 4, and it is characterized in that: the unicom pipeline of said vacuum pipeline is communicated to fan, and the furnace gas that does not have to utilize is discharged through said fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061987.9A CN102616814B (en) | 2012-03-09 | 2012-03-09 | Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061987.9A CN102616814B (en) | 2012-03-09 | 2012-03-09 | Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment |
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| Publication Number | Publication Date |
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| CN102616814A true CN102616814A (en) | 2012-08-01 |
| CN102616814B CN102616814B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210061987.9A Active CN102616814B (en) | 2012-03-09 | 2012-03-09 | Equipment for recovering water vapor in heavy ash furnace gas and method for recovering water vapor in heavy ash furnace gas by using equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534389A (en) * | 2018-06-09 | 2018-09-14 | 连云港市擎天德邦科技发展有限公司 | Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD204904A1 (en) * | 1982-05-18 | 1983-12-14 | Klaus Schoenwaelder | METHOD FOR THE OBTAINING OF MOLECULAR PRODUCTION IN THE ABSORPTION PROCESS OF THE AMMONIA SODA PROCESS |
| CN101761913A (en) * | 2010-02-11 | 2010-06-30 | 山东海天生物化工有限公司 | Method and device for recovering waste heat of steam condensate of calcination plant |
| CN101792192A (en) * | 2010-02-11 | 2010-08-04 | 山东海天生物化工有限公司 | Method and device for recovering waste heat in heavy ash process |
| CN202542890U (en) * | 2012-03-09 | 2012-11-21 | 山东海天生物化工有限公司 | Equipment for recovering water vapor in heavy ash furnace gas |
-
2012
- 2012-03-09 CN CN201210061987.9A patent/CN102616814B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD204904A1 (en) * | 1982-05-18 | 1983-12-14 | Klaus Schoenwaelder | METHOD FOR THE OBTAINING OF MOLECULAR PRODUCTION IN THE ABSORPTION PROCESS OF THE AMMONIA SODA PROCESS |
| CN101761913A (en) * | 2010-02-11 | 2010-06-30 | 山东海天生物化工有限公司 | Method and device for recovering waste heat of steam condensate of calcination plant |
| CN101792192A (en) * | 2010-02-11 | 2010-08-04 | 山东海天生物化工有限公司 | Method and device for recovering waste heat in heavy ash process |
| CN202542890U (en) * | 2012-03-09 | 2012-11-21 | 山东海天生物化工有限公司 | Equipment for recovering water vapor in heavy ash furnace gas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534389A (en) * | 2018-06-09 | 2018-09-14 | 连云港市擎天德邦科技发展有限公司 | Lithium bromide refrigerating heat sink and method in procedure of producing soda under joint alkaline process |
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| CN102616814B (en) | 2014-02-19 |
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