CN207575810U - Sulphuric acid concentration system - Google Patents
Sulphuric acid concentration system Download PDFInfo
- Publication number
- CN207575810U CN207575810U CN201721290076.8U CN201721290076U CN207575810U CN 207575810 U CN207575810 U CN 207575810U CN 201721290076 U CN201721290076 U CN 201721290076U CN 207575810 U CN207575810 U CN 207575810U
- Authority
- CN
- China
- Prior art keywords
- concentration
- sulfuric acid
- concentrated
- reboiler
- acid solution
- 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.)
- Active
Links
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model is related to technical field of chemical, more particularly, to a kind of sulphuric acid concentration system.The sulphuric acid concentration system, including be sequentially communicated triple effect evaporation system, first boil system and second again and boil system again；Triple effect evaporation system is used to be evaporated concentration to sulfuric acid solution to be concentrated；First boils system again includes the first reboiler, for being concentrated to the sulfuric acid solution being concentrated by evaporation through triple effect evaporation system；Second boils system again includes the second reboiler, for being concentrated to the sulfuric acid solution flowed out from the first reboiler.The utility model is conducive to improve the rate of recovery of sulfuric acid, and the mass fraction concentration of the sulfuric acid after concentration is also higher, disclosure satisfy that the requirement of most techniques.
Description
Technical field
The utility model is related to technical field of chemical, more particularly, to a kind of sulphuric acid concentration system.
Background technology
In many chemical process systems, when concentration and recovery of Waste Sulfuric Acid many enterprises it is anxious to be resolved the problem of one of, one
Aspect is in order to ensure to produce, it is necessary to which non-sulfuric acid is handled；On the other hand, the environmental pollution and the guarantor that thereby result in also to be solved
Shield problem.At present, the method for sulphuric acid concentration is mainly the following：Cooking-pot type concentration, burning concentration, high temperature concentration method and low temperature are dense
Contracting method etc..The retrieval of sulfuric acid rate of three kinds of front method is not high, and is only suitable for the sulphuric acid concentration of small-scale.Low temperature concentration method is only
Suitable for being concentrated to sulfuric acid mass fraction concentration less than 60% dilute sulfuric acid, the sulfuric acid mass fraction concentration after concentration is not yet
More than 60%, many technological requirements cannot be met.
Utility model content
The purpose of this utility model is to provide a kind of sulphuric acid concentration systems, dense to solve cooking-pot type in the prior art
Contracting, burning concentration and high temperature concentration method retrieval of sulfuric acid rate it is not high, and low temperature concentration method be only applicable to it is dense to sulfuric acid mass fraction
Dilute sulfuric acid of the degree less than 60% is concentrated, and the sulfuric acid mass fraction concentration after concentration, will to many techniques also no more than 60%
Seek unappeasable technical problem.
The utility model provides a kind of sulphuric acid concentration system, including be sequentially communicated triple effect evaporation system, first boil again
System and second boils system again；The triple effect evaporation system is used to be evaporated concentration to sulfuric acid solution to be concentrated；Described
Boiling system includes the first reboiler again and again, dense for being carried out to the sulfuric acid solution being concentrated by evaporation through the triple effect evaporation system
Contracting；Described second boils system again includes the second reboiler, for being carried out to the sulfuric acid solution flowed out from first reboiler
Concentration.
Further, the triple effect evaporation system includes the first vapo(u)rization system being sequentially communicated, the second vapo(u)rization system and the
Three vapo(u)rization systems, first vapo(u)rization system are used to be evaporated concentration to the sulfuric acid solution to be concentrated；Described second steams
Hair system is used to be evaporated concentration to the sulfuric acid solution after first vapo(u)rization system evaporation and concentration；The third evaporation system
It unites to be evaporated concentration to the sulfuric acid solution after second vapo(u)rization system evaporation and concentration.
Further, first vapo(u)rization system includes the first evaporator being sequentially communicated, the first vapor-liquid separation tank and the
One flash tank.
Further, second vapo(u)rization system includes the second evaporator being sequentially communicated, the second vapor-liquid separation tank and the
Two flash tanks；Second evaporator is also connected with first flash tank.
Further, the triple effect evaporation system includes the third evaporator being sequentially communicated and third vapor-liquid separation tank；Institute
Third evaporator is stated also with second flash tank to be connected.
Further, described first again the system of boiling further include the 4th flash tank；4th flash tank also with the third
Vapor-liquid separation tank is connected；The first outlet of 4th flash tank is connected with the first import of the first reboiler.
Further, described second again the system of boiling further include the 5th flash tank；5th flash tank is also with described first
Reboiler is connected；The first outlet of 5th flash tank is connected with the first import of second reboiler.
Further, intermediate sour tank is further included, the 4th flash tank passes through the intermediate sour tank and the third vapour-liquid
Knockout drum is connected.
Further, further include preheater, for the triple effect evaporation system to the sulfuric acid solution to be concentrated into
Before row is concentrated by evaporation, first the sulfuric acid solution to be concentrated is preheated；The preheater and the triple effect evaporation system
System is connected.
Further, first evaporator is silicon carbide evaporator.
The utility model additionally provides a kind of sulphuric acid concentration system, including the triple effect evaporation system, first again being sequentially communicated
Boiling system and second boils system again；The triple effect evaporation system is used to be evaporated concentration to sulfuric acid solution to be concentrated；It is described
First boils system again includes the first reboiler, for being carried out to the sulfuric acid solution being concentrated by evaporation through the triple effect evaporation system
Concentration；Described second boil again system include the second reboiler, for the sulfuric acid solution flowed out from first reboiler into
Row concentration；First reboiler is sulphuric acid concentration reboiler.
Compared with prior art, the beneficial effects of the utility model are：
Sulphuric acid concentration system provided by the utility model, including be sequentially communicated triple effect evaporation system, first boil system again
System is boiled again with second；Triple effect evaporation system is used to be evaporated concentration to sulfuric acid solution to be concentrated；First boils system packet again
The first reboiler is included, for being concentrated to the sulfuric acid solution being concentrated by evaporation through triple effect evaporation system；Second boils system again
Including the second reboiler, for being concentrated to the sulfuric acid solution flowed out from the first reboiler.By using triple effect evaporation system
System can carry out initial concentration to sulfuric acid solution to be concentrated, then can realize two by the first reboiler and the second reboiler
Secondary concentration carries out a step and improves sulfuric acid mass fraction concentration, so as to be conducive to improve the rate of recovery of sulfuric acid, and after concentration
The mass fraction concentration of sulfuric acid is also higher, disclosure satisfy that the requirement of most techniques.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram that the utility model embodiment one provides sulphuric acid concentration system；
Fig. 2 is the structure diagram that the utility model embodiment one provides sulphuric acid concentration system；
Fig. 3 is the structure diagram of a portion after dividing in Fig. 2 along line A-A；
Fig. 4 is the structure diagram of another part after dividing in Fig. 2 along line A-A.
In figure：
101- preheaters；The first evaporators of 102-；The first vapor-liquid separation tanks of 103-；The first flash tanks of 104-；105- second
Evaporator；The second vapor-liquid separation tanks of 106-；The second flash tanks of 107-；108- third evaporators；109- third vapor-liquid separation tanks；
110- the first steam knockout drums；111- the first steam condensers；112- the second steam knockout drums；113- the second steam condensers；
The first condensate water pots of 114-；The first vacuum pump groups of 115-；The first condensers of 116-；The first reboilers of 117-；118- the 4th is flashed
Tank；Sour tank among 119-；The first demisters of 120-；The second condensers of 121-；Sour pump group among 122-；The second reboilers of 123-；
The 5th flash tanks of 124-；126- scrubbing towers；127- third condensers；The second vacuum pump groups of 128-；129- sulfuric acid coolers；130-
Finished acid tank；131- finished acid pump groups.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
In many chemical process systems, in the concentration and recovery of Waste Sulfuric Acid, the method for sulphuric acid concentration is mainly the following：
Cooking-pot type concentration, burning concentration, high temperature concentration method and low temperature concentration method etc..Acid fume pollution can be generated during the three productions of front,
Severe operational environment, waste water and gas discharge is more, and retrieval of sulfuric acid rate is not also high, it is most important that high energy consumption during sulphuric acid concentration,
Operating cost is high, is only suitable for the sulphuric acid concentration of small-scale.In addition, high temperature concentration method also there are it is following the shortcomings that：It is concentrated by evaporation
Energy consumption is very high, and the strong corrosive and acid mist of sulfuric acid are very big to the harm of equipment and operating personnel, and practical operation is very troublesome.Low temperature
Concentration method has the following disadvantages：Device is non-closed, if there is volatile materials in spent acid, working environment can be influenced, to equipment and behaviour
It is big to make personnel's harm；Apparatus main body material is composite polypropylene, and operation temperature is no more than 80 DEG C；After sulphuric acid concentration, sulfuric acid
Mass fraction concentration is less than 60%, it is impossible to meet most of operating mode needs.In consideration of it, the utility model embodiment provides one kind
Sulphuric acid concentration system is above-mentioned to solve the problems, such as.
Embodiment one
Referring to shown in Fig. 1 to Fig. 4, the utility model embodiment one provides a kind of sulphuric acid concentration system, including connecting successively
Logical triple effect evaporation system, first boil system and second and boil system again again；Triple effect evaporation system is for molten to sulfuric acid to be concentrated
Liquid is evaporated concentration；First boils system again includes the first reboiler 117, for being concentrated by evaporation to obtain through triple effect evaporation system
Sulfuric acid solution concentrated；Second boils system again includes the second reboiler 123, for being flowed out from the first reboiler 117
Sulfuric acid solution concentrated.
The sulphuric acid concentration system that the embodiment provides, can be to sulfuric acid solution to be concentrated by using triple effect evaporation system
Initial concentration is carried out, then can realize and concentrate twice by the first reboiler 117 and the second reboiler 123, a step is carried out and carries
The high mass fraction concentration of sulfuric acid, so as to be conducive to improve the rate of recovery of sulfuric acid, and the mass fraction of the sulfuric acid after concentrating
Concentration is also higher, disclosure satisfy that the requirement of most techniques.
In the optional scheme of the embodiment, sulphuric acid concentration system further includes preheater 101, in triple effect evaporation system pair
Sulfuric acid solution to be concentrated is evaporated before concentration, and first sulfuric acid solution to be concentrated is preheated；Preheater 101 and three
Effect vapo(u)rization system is connected.
Specifically, first passing through preheater 101 in sulfuric acid solution to be concentrated carries out pre-heating temperature elevation, steamed subsequently into triple effect
Hair system.Mass fraction concentration is delivered to preheater 101 less than 40% dilute sulfuric acid by pumping.
In the optional scheme of the embodiment, triple effect evaporation system includes the first vapo(u)rization system being sequentially communicated, the second evaporation
System and third vapo(u)rization system, the first vapo(u)rization system are used to be evaporated concentration to sulfuric acid solution to be concentrated；Second evaporation system
It unites to be evaporated concentration to the sulfuric acid solution after the first vapo(u)rization system evaporation and concentration；Third vapo(u)rization system is used for through the
Sulfuric acid solution after two vapo(u)rization systems are concentrated by evaporation is evaporated concentration.It can be by sulfuric acid mass fraction by triple effect evaporation system
Concentration is concentrated to 55%~65%, can specifically be concentrated to 60%.
In the optional scheme of the embodiment, the first vapo(u)rization system includes the first evaporator 102 being sequentially communicated, the first vapour-liquid
103 and first flash tank 104 of knockout drum.
In the optional scheme of the embodiment, the second vapo(u)rization system includes the second evaporator 105 being sequentially communicated, the second vapour-liquid
106 and second flash tank 107 of knockout drum；Second evaporator 105 is also connected with the first flash tank 104, passes through the first of setting
Flash tank 104, what can be fluctuated to avoid feed rate happens and ensures that 105 operating pressure of the second evaporator is stablized.
In the optional scheme of the embodiment, triple effect evaporation system includes the third evaporator 108 being sequentially communicated and third vapour
Liquid knockout drum 109；Third evaporator 108 is also connected with the second flash tank 107, can be with by the second flash tank 107 of setting
Avoid happening and ensureing that 108 operating pressure of third evaporator is stablized for feed rate fluctuation.It should be noted that first dodges
Steaming pot generates steam and enters the second vapor-liquid separation tank, is detached by the second vapor-liquid separation tank；Second flash tank generates steam
Into third vapor-liquid separation tank, detached by the second vapor-liquid separation tank 109.
In the optional scheme of the embodiment, the first vapor-liquid separation tank 103 is also connected with the second evaporator 105, and second steams
Hair device 105 is also connected with the first steam knockout drum 110, and the first steam knockout drum 110 is connected with the first steam condenser 111
It is logical；The indirect steam (i.e. the indirect steam that the first vapor-liquid separation tank 103 generates) that first vapo(u)rization system generates enters as heat source
The liquid phase and/or gas phase formed after being condensed in the second evaporator 105 to the second evaporator 105, indirect steam enters first and steams
Vapour knockout drum 110, uncooled steam continues to condense into the first steam condenser 111 in the first steam knockout drum 110.
In the optional scheme of the embodiment, the second vapor-liquid separation tank 106 is also connected with third evaporator 108, and third is steamed
Hair device 108 is also connected with the second steam knockout drum 112, and the second steam knockout drum 112 is connected with the second steam condenser 113
It is logical；The indirect steam (i.e. the indirect steam that the second vapor-liquid separation tank 106 generates) that second vapo(u)rization system generates enters as heat source
The liquid phase and/or gas phase formed after being condensed in third evaporator 108 to third evaporator 108, indirect steam enters second and steams
Vapour knockout drum 112, uncooled steam continues to condense into the second steam condenser 113 in the second steam knockout drum 112.
In the optional scheme of the embodiment, the first steam knockout drum 110, the first steam condenser 111, the separation of the second steam
112 and second steam condenser 113 of tank, this is also connected with the first condensate water pot 114, the condensation generated in this
Water enters the first condensate water pot 114；The mass fraction concentration of the middle sulfuric acid of condensed water in first condensate water pot 114 is less than
0.5%.
In the optional scheme of the embodiment, triple effect steams system and is also connected with by the first vacuum pump group 115, true by first
Empty pump group 115 vacuumizes the evaporation operation temperature to reduce dilute sulfuric acid.
In the optional scheme of the embodiment, third vapor-liquid separation tank 109 is also connected with the first condenser 116, and first is cold
Condenser 116 is connected with the first condensate water pot 114；Indirect steam (the i.e. third vapor-liquid separation tank 109 that third vapo(u)rization system generates
The indirect steam of generation) through the first condenser 116 condensation after enter the first condensate water pot 114.
In the optional scheme of the embodiment, first again the system of boiling further include the 4th flash tank 118；4th flash tank 118 is also
It is connected with third vapor-liquid separation tank 109；The first outlet of 4th flash tank 118 and the first import phase of the first reboiler 117
Connection.By first again the system of boiling the mass fraction concentration of sulfuric acid can be concentrated to 60%~80%, can specifically concentrate
To 70% or 75% etc..
In the optional scheme of the embodiment, sulphuric acid concentration system further includes intermediate sour tank 119, and the 4th flash tank 118 passes through
Intermediate acid tank 119 is connected with third vapor-liquid separation tank 109.4th flash tank 118 is also connected with the first demister 120.The
One demister 120 is also connected with the second condenser 121.Sulfuric acid solution after being concentrated by triple effect evaporation system flows into intermediate sour tank
119, then the sulfuric acid solution in intermediate sour tank 119 is delivered to by the 4th flash tank 118 by intermediate sour pump group 122 and is flashed,
Sulfuric acid solution flows into the first reboiler 117 due to the effect of gravity in 4th flash tank 118, the evaporation in the 4th flash tank 118
Gas enters the first demister 120 removal entrainment microlayer model, then enters the first vacuum pump group 115 through the condensation of the second condenser 121
It vacuumizes.Condensed water in second condenser 121 flow to the first condensate water pot 114 certainly.
In the optional scheme of the embodiment, second again the system of boiling further include the 5th flash tank 124；5th flash tank 124 is also
It is connected with the first reboiler 117；The first outlet of 5th flash tank 124 is connected with the first import of the second reboiler 123.
By second again the system of boiling the mass fraction concentration of sulfuric acid can be concentrated to 80%~93%, can specifically be concentrated to 85%
Or 90% etc..
In the optional scheme of the embodiment, through the first reboiler 117 concentration after sulfuric acid solution due to gravity effect from
Stream enters the 5th flash tank 124, and the 5th flash tank 124 is also connected with scrubbing tower 126, scrubbing tower 126 and third condenser 127
It is connected；The steam generated through the flash distillation of the 5th flash tank 124 enters scrubbing tower 126, after washed tower 126 washs, steam again into
Enter third condenser 127 to condense moisture content most of in steam, most discharge sulphuric acid concentration system through the second vacuum pump group 128 afterwards
System.Second reboiler 123 is also connected with preheater 101, and preheater 101 is connected with sulfuric acid cooler 129, sulfuric acid cooler
129 are connected with finished acid tank 130；After the flash distillation of the 5th flash tank 124, liquid portion (the i.e. sulphur in the 5th flash tank 124
Acid solution) flow into the second reboiler 123 concentrate again, the mass fraction concentration of sulfuric acid can reach 93% after concentration, from second
The concentrated sulfuric acid that reboiler 123 flows out first passes through preheater 101, and the heat recovery to the concentrated sulfuric acid is realized by preheater 101, from pre-
The concentrated sulfuric acid flowed out in hot device 101 flows into finished acid tank 130, then through finished acid pump group after being cooled down using sulfuric acid cooler 129
131 are delivered to the external world.It is handled using scrubbing tower 126, can effectively control the entrainment of sulfuric acid microlayer model, reduce acid condensate water sulphur
Acid content.It should be noted that the sulfuric acid solution to be concentrated of system input and circulation path of the concentrated sulfuric acid in preheater 101
It is not communicated with, therefore sulfuric acid solution to be concentrated will not be interfered mutually with the concentrated sulfuric acid.Steam enters before third condenser 127, may be used also
To use pipeline spraying ventilating device, can effectively be reduced in steam into cooling down before condenser with corruption of the acid vapor to equipment
Erosion.
In the optional scheme of the embodiment, the first evaporator 102 is silicon carbide evaporator.Second evaporator 105 and third
Evaporator 108 is impregnated graphite evaporator, efficiently solves material etching problem of the dilute sulfuric acid to evaporator in this way.First again
117 and second reboiler of device, 123 equal sulphuric acid concentration reboiler is boiled, sulphuric acid concentration reboiler is to be concentrated in vacuo to design exclusively for sulfuric acid
Equipment, it by a steel lining enamel housing and set of heat exchange tubes into；Heat exchanger tube be silicon carbide heat exchanger tube or tantalum material heat exchanger tube, can
Corroded with high temperature resistant high-concentration sulfuric acid, acid flows smoothly forward along evaporator and constantly promotes concentration, as a result of PTFE
Baffle plate eliminates air-teturning mixed phenomenon so as to ensure that the mean temperature difference of acid and steam maintains maximum value, therefore can make tantalum pipe
Heating surface (area) (HS be reduced to minimum.Since concentrated vitriol operation vacuum is higher so that further concentration can be relatively low for sulfuric acid
It is carried out under evaporating temperature, reduces secondary harm.
It should be noted that in the embodiment, be not only limited to sulphuric acid concentration, can also to it is other be not easy volatile acid into
Row concentration.In addition, it is the prior art in itself using all parts, the embodiment is no longer to the structure of all parts and work original
Reason is described in detail.In the embodiment, enamel connecting tube is used for flowing the pipeline of sulfuric acid solution between different components,
That is frequently replaced after corroding this avoid equipment happens, and greatly reduces labor intensity；Such as：Preheater 101 and three
Effect vapo(u)rization system is connected by enamel connecting tube；First evaporator 102, the first vapor-liquid separation tank 103 and the first flash tank 104 3
It is sequentially connected by enamel connecting tube between person；Second evaporator 105, the second vapor-liquid separation tank 106 and the second flash tank 107 3
It is sequentially connected by enamel connecting tube between person.Third evaporator 108 and third vapor-liquid separation tank 109 are suitable by enamel connecting tube
Secondary connection.
Shown in Figure 1, the utility model embodiment one additionally provides a kind of sulphuric acid concentration system using in embodiment one
The sulphuric acid concentration technique of system suitable for above-mentioned sulphuric acid concentration system, includes the following steps：
Step S201, concentration is evaporated to sulfuric acid solution to be concentrated using triple effect evaporation system.
Sulfuric acid solution to be concentrated flows into the first evaporator 102 after 101 pre-heating temperature elevation of preheater, is steamed by first
It after sending out the evaporation and concentration of device 102, then flows into the first vapor-liquid separation tank 103 and realizes vapor-liquid separation, flowed out from the first vapor-liquid separation tank 103
Sulfuric acid solution flashed using the first flash tank 104, after flash distillation, from the first flash tank 104 flow out sulfuric acid it is molten
Liquid flows into the second evaporator 105 again.
Sulfuric acid solution flows into the second evaporator 105, after the second evaporator 105 evaporation and concentration, then flows into the second vapour-liquid
Knockout drum 106 realize vapor-liquid separation, from the second vapor-liquid separation tank 106 flow out sulfuric acid solution using the second flash tank 107 into
Row flash distillation, after flash distillation, the sulfuric acid solution flowed out from the second flash tank 107 flows into third evaporator 108 again.
Sulfuric acid solution flows into third evaporator 108, after the evaporation and concentration of third evaporator 108, then flows into third vapour-liquid
Knockout drum 109 realizes vapor-liquid separation, and the sulfuric acid solution flowed out from third vapor-liquid separation tank 109 enters back into intermediate sour tank 119, then
Sulfuric acid solution is delivered to the 4th flash tank 118 by the intermediate sour pump group 122 being connected with intermediate sour tank 119 to flash.
Step S202, the first reboiler 117 of system is boiled again to being concentrated by evaporation to obtain through triple effect evaporation system using first
Sulfuric acid solution concentrated.
After flash distillation, the first reboiler 117 is flowed into again from the sulfuric acid solution of the 4th flash tank 118 outflow and is concentrated,
The sulfuric acid solution flowed out from the first reboiler 117 just flows into the 5th flash tank 124.
Step S203, the second reboiler 123 of system is boiled again to the sulfuric acid that is flowed out from the first reboiler 117 using second
Solution is concentrated.
After the flash distillation of the 5th flash tank 124, the sulfuric acid solution flowed out from the 5th flash tank 124 flows into the second reboiler again
123 are concentrated, and the sulfuric acid solution (i.e. the concentrated sulfuric acid) flowed out from the second reboiler 123 just flows into preheater 101, realizes heat
Recycling；After preheated device 101, the concentrated sulfuric acid is cooled down using sulfuric acid cooler 129, after cooling through sulfuric acid cooler 129
The concentrated sulfuric acid flows into finished acid tank 130 again, so far just completes the concentration technology to sulfuric acid solution to be concentrated.
It should be noted that in the embodiment, the flow direction of sulfuric acid solution is essentially described, for what is generated in concentration process
The processing of the substances such as secondary steam, liquid water and flow direction are referring to the associated description in embodiment one.
To sum up, the sulphuric acid concentration system provided by the utility model has good operational environment, and acid fume can be avoided dirty
Dye, almost without the discharge of the three wastes, next crucial evaporator using silicon carbide heat exchanger or impregnated graphite heat exchanger, adopt by pipeline
Taken over enamel be all superior performance anti-corrosion material, avoid equipment corrosion after frequently replace, greatly reduce labor intensity；
Sulphuric acid concentration can be with continuous operation, and operating personnel are few, and low energy consumption；Compared with the same device that foreign countries introduce, investment saves one
Half.With same treatment capacity calculation, the operating cost of this system is the 60% of cooking-pot type concentration, is the 62% of burning concentration, can be with
Meet the requirement of national energy-saving emission reduction.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.In addition, it will be appreciated by those of skill in the art that although some implementations described herein
Example includes certain features included in other embodiments rather than other feature, but the combination of the feature of different embodiments is anticipated
Taste within the scope of the utility model and forms different embodiments.For example, in the following claims, institute
The one of arbitrary of claimed embodiment mode can use in any combination.
Claims (10)
1. a kind of sulphuric acid concentration system, which is characterized in that including be sequentially communicated triple effect evaporation system, first boil system and again
Two boil system again；The triple effect evaporation system is used to be evaporated concentration to sulfuric acid solution to be concentrated；Described first boils and is again
System includes the first reboiler, for being concentrated to the sulfuric acid solution being concentrated by evaporation through the triple effect evaporation system；It is described
Second boils system again includes the second reboiler, for being concentrated to the sulfuric acid solution flowed out from first reboiler.
2. sulphuric acid concentration system according to claim 1, which is characterized in that the triple effect evaporation system includes being sequentially communicated
The first vapo(u)rization system, the second vapo(u)rization system and third vapo(u)rization system, first vapo(u)rization system be used for described to be concentrated
Sulfuric acid solution is evaporated concentration；Second vapo(u)rization system is used for the sulfuric acid after first vapo(u)rization system evaporation and concentration
Solution is evaporated concentration；The third vapo(u)rization system is used for the sulfuric acid solution after second vapo(u)rization system evaporation and concentration
It is evaporated concentration.
3. sulphuric acid concentration system according to claim 2, which is characterized in that first vapo(u)rization system includes being sequentially communicated
The first evaporator, the first vapor-liquid separation tank and the first flash tank.
4. sulphuric acid concentration system according to claim 3, which is characterized in that second vapo(u)rization system includes being sequentially communicated
The second evaporator, the second vapor-liquid separation tank and the second flash tank；Second evaporator is also connected with first flash tank
It is logical.
5. sulphuric acid concentration system according to claim 4, which is characterized in that the triple effect evaporation system includes being sequentially communicated
Third evaporator and third vapor-liquid separation tank；The third evaporator is also connected with second flash tank.
6. sulphuric acid concentration system according to claim 5, which is characterized in that described first again the system of boiling further include the 4th sudden strain of a muscle
Steaming pot；4th flash tank is also connected with the third vapor-liquid separation tank；The first outlet of 4th flash tank and the
First import of one reboiler is connected.
7. sulphuric acid concentration system according to claim 6, which is characterized in that described second again the system of boiling further include the 5th sudden strain of a muscle
Steaming pot；5th flash tank is also connected with first reboiler；The first outlet of 5th flash tank and described the
First import of two reboilers is connected.
8. the sulphuric acid concentration system described according to claim 6 or 7, which is characterized in that further include intermediate sour tank, the described 4th dodges
Steaming pot is connected by the intermediate sour tank with the third vapor-liquid separation tank.
9. the sulphuric acid concentration system according to any one of claim 1-7, which is characterized in that further include preheater, be used for
Before the triple effect evaporation system is evaporated concentration to the sulfuric acid solution to be concentrated, first to the sulfuric acid to be concentrated
Solution is preheated；The preheater is connected with the triple effect evaporation system.
10. a kind of sulphuric acid concentration system, which is characterized in that including be sequentially communicated triple effect evaporation system, first boil again system and
Second boils system again；The triple effect evaporation system is used to be evaporated concentration to sulfuric acid solution to be concentrated；Described first boils again
System includes the first reboiler, for being concentrated to the sulfuric acid solution being concentrated by evaporation through the triple effect evaporation system；Institute
State second boil again system include the second reboiler, for being concentrated to the sulfuric acid solution flowed out from first reboiler；
First reboiler is sulphuric acid concentration reboiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290076.8U CN207575810U (en) | 2017-09-30 | 2017-09-30 | Sulphuric acid concentration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290076.8U CN207575810U (en) | 2017-09-30 | 2017-09-30 | Sulphuric acid concentration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207575810U true CN207575810U (en) | 2018-07-06 |
Family
ID=62728687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721290076.8U Active CN207575810U (en) | 2017-09-30 | 2017-09-30 | Sulphuric acid concentration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207575810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670315A (en) * | 2017-09-30 | 2018-02-09 | 无锡英罗唯森科技有限公司 | Sulphuric acid concentration system and technique |
| CN110054164A (en) * | 2019-05-23 | 2019-07-26 | 胡平 | A kind of dilute sulfuric acid system for concentrating and recycling |
-
2017
- 2017-09-30 CN CN201721290076.8U patent/CN207575810U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670315A (en) * | 2017-09-30 | 2018-02-09 | 无锡英罗唯森科技有限公司 | Sulphuric acid concentration system and technique |
| CN110054164A (en) * | 2019-05-23 | 2019-07-26 | 胡平 | A kind of dilute sulfuric acid system for concentrating and recycling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205699515U (en) | A kind of dilute sulfuric acid waste liquid 3+1 negative pressure evaporation enrichment facility | |
| CN108483399A (en) | A kind of VCM purification hydrochloric acid full stripping device and technique | |
| CN205699506U (en) | A kind of electronics acid pickle electron-level phosphoric acid recycling and processing device | |
| CN207575810U (en) | Sulphuric acid concentration system | |
| CN107337245A (en) | A kind of spraying system that desulfurization wastewater is concentrated using fume afterheat | |
| CN109200610A (en) | A kind of sulphuric acid concentration system | |
| CN108358176A (en) | A kind of dilute sulfuric acid vacuum concentrating apparatus and method | |
| CN209286688U (en) | MVR evaporator replaces the Production of Barium Chloride system of traditional four-effect evaporator | |
| CN205730415U (en) | A kind of recycling and processing device of photoelectric material pickle liquor | |
| CN107899261A (en) | Standardize low-temperature evaporation equipment | |
| CN209500800U (en) | A kind of forced circulation MVR evaporator | |
| CN204138355U (en) | Flow-reversing dual-purpose ammonia concentrating unit | |
| CN104864376B (en) | Heat-pipe type falling film evaporation low-temperature waste heat utilization and water recovery equipment | |
| CN104085861B (en) | A kind of device of reclaim(ed) sulfuric acid from Graphene acid-bearing wastewater and corresponding technique thereof | |
| CN103386207A (en) | Potassium chloride triple-effect evaporation system capable of improving heat energy utilization rate | |
| CN206304539U (en) | The water reclamation system of desulfurization fume | |
| CN108671571A (en) | Phosphoric Acid Concentration system and technique | |
| CN107670315A (en) | Sulphuric acid concentration system and technique | |
| CN207722395U (en) | Standardize low-temperature evaporation equipment | |
| CN110422827A (en) | A kind of the Waste Sulfuric Acid recycling device and technique of dry chlorine gas | |
| CN106730942A (en) | A kind of salt organic waste water low-temperature evaporation crystallization apparatus high | |
| CN206051600U (en) | A kind of low-temperature evaporation crystal system for processing thermal power plant's high slat-containing wastewater | |
| WO2023103284A1 (en) | Separation column for treating condensed water, and method therefor | |
| CN205953539U (en) | Scrubbing tower device and trichlorosilane tail gas recovery system | |
| CN104368167A (en) | Triple-effect titanium liquid concentration device and concentration process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |