CN108147434A - Join alkali system - Google Patents
Join alkali system Download PDFInfo
- Publication number
- CN108147434A CN108147434A CN201711288529.8A CN201711288529A CN108147434A CN 108147434 A CN108147434 A CN 108147434A CN 201711288529 A CN201711288529 A CN 201711288529A CN 108147434 A CN108147434 A CN 108147434A
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- China
- Prior art keywords
- mother liquor
- forecooler
- heat exchanger
- import
- crystallizer
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/16—Preparation from compounds of sodium or potassium with amines and carbon dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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
-
- 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
-
- 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
- Y02P20/141—Feedstock
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a kind of alkali system, including：Mother liquor heat exchanger, forecooler, cool crystallizer, Outer Cooler, compressor, for connection alkali system power supply gas electricity generator, flue gas waste heat recovery apparatus, afterheat of hot water retracting device.Forecooler has the import of forecooler mother liquor and forecooler mother liquor outlet, and the import of forecooler mother liquor is connected with heat exchanger AI mother liquor outlets, and forecooler is arranged for that the AI mother liquors flowed out into forecooler from mother liquor heat exchanger are pre-chilled；And flue gas waste heat recovery apparatus is connected with gas electricity generator and for recycling exhaust energy possessed by flue gas caused by gas electricity generator burning, afterheat of hot water retracting device is connected with gas electricity generator and for recycling hot water energy possessed by the hot water formed after cooling gas electricity generator, and wherein flue gas waste heat recovery apparatus selectively can provide cold to forecooler.The integral energy utilization rate of the connection alkali system is higher, and the operating cost for joining alkali system is lower.
Description
Technical field
The present invention relates to connection alkali manufacturing technology field, in particular to a kind of alkali system.
Background technology
In tradition joins alkali alkali-making process system, system institute chilling requirement is all generated by the compressor cooling of Outer Cooler, is
Energy consumption of uniting is big, and ton alkali power consumption is higher, also increases the equipment investment of system and maintenance expense, and in winter, and system is cold negative
Lotus is smaller, causes a large amount of refrigeration equipments (compressor) idle, utilization rate of equipment and installations is low, and there are rooms for improvement.
Invention content
The present invention is directed to solve one of above-mentioned technical problem of the prior art at least to a certain extent.For this purpose, this hair
Bright to propose a kind of alkali system, the integral energy utilization rate of the connection alkali system is higher, and the operating cost for joining alkali system is lower.
Alkali system according to an embodiment of the invention, including：Mother liquor heat exchanger, the mother liquor heat exchanger have heat exchanger
The import of AI mother liquors, heat exchanger AI mother liquor outlets and the import of heat exchanger MII mother liquors, heat exchanger MII mother liquor outlets；Forecooler, it is described
Forecooler has the import of forecooler mother liquor and forecooler mother liquor outlet, the forecooler mother liquor import and the heat exchanger AI mother liquors
Outlet is connected；Cool crystallizer, the cool crystallizer have crystallizer mother liquor import, crystallizer mother liquor outlet, salting-out crystallization
Device interface, thickener interface, the crystallizer mother liquor import are connected with the forecooler mother liquor outlet；And Outer Cooler, it is described
Outer Cooler has the import of Outer Cooler mother liquor, Outer Cooler mother liquor outlet, and the Outer Cooler mother liquor import goes out with the crystallizer mother liquor
Mouth is connected, and the Outer Cooler mother liquor outlet is connected with the crystallizer mother liquor import；Compressor, the compressor are arranged for
Cold is provided to the Outer Cooler；For to gas electricity generator, the flue gas waste heat recovery apparatus of the alkali system power supply, hot water
Waste-heat recovery device, the flue gas waste heat recovery apparatus are connected with the gas electricity generator and for recycling the gas electricity generator
Exhaust energy possessed by flue gas caused by burning, the afterheat of hot water retracting device are connected and use with the gas electricity generator
Hot water energy possessed by the hot water formed after the recycling cooling gas electricity generator, wherein the flue gas waste heat recovery fills
Put selectively to provide cold to the forecooler.
Alkali system according to an embodiment of the invention, the connection alkali system increase the fortune that gas electricity generator is whole system
Row provides required energy, and exhaust gas caused by gas electricity generator can provide cooling power for the forecooler newly added, from
And reduce the load of Outer Cooler refrigeration mixed solution, and then reduce the quantity of refrigeration equipment in Outer Cooler, and then reduce connection alkali
The operating cost of system.
In addition, according to the connection alkali system of inventive embodiments, there can also be following additional technical feature：
According to some embodiments of the present invention, the heat exchanger AI mother liquors import be located at the mother liquor heat exchanger top and
The heat exchanger AI mother liquor outlets are located at the bottom of the mother liquor heat exchanger.
According to some embodiments of the present invention, the heat exchanger MII mother liquors import and the heat exchanger MII mother liquor outlets are equal
Positioned at the side of the mother liquor heat exchanger, and the heat exchanger MII mother liquors import is less than the heat exchanger MII mother liquor outlets.
According to some embodiments of the present invention, the flue gas waste heat recovery apparatus is with refrigeration mode and heating mode
Fume hot-water type absorption cooling and warming water machine group.
According to some embodiments of the present invention, the fume hot-water type absorption cooling and warming water machine group has for described pre-
Cooler provides the cold circulation line of cold, and cold circulation line on-off valve, the cigarette are provided on the cold circulation line
Gas hot-water type absorption cooling and warming water machine group also has hot water outlet.
According to some embodiments of the present invention, the afterheat of hot water retracting device is plate heat exchanger.
According to some embodiments of the present invention, the plate heat exchanger and the hot water outlet are adapted to make with user's hot water
It is connected with end.
According to some embodiments of the present invention, the crystallizer mother liquor import be located at the crystallizer side and the knot
Brilliant device mother liquor outlet is located at the top surface of the crystallizer, be additionally provided in the crystallizer for will from the crystallizer mother liquor into
The mother liquor that mouth enters is delivered to the axial-flow pump of the crystallizer mother liquor outlet.
According to some embodiments of the present invention, the forecooler mother liquor import is located at the bottom of the forecooler and described pre-
Cooler mother liquor outlet is located at the top of the forecooler.
According to some embodiments of the present invention, the Outer Cooler mother liquor import is located at the bottom of the Outer Cooler and described outer
Cooler mother liquor outlet is located at the top of the Outer Cooler.
Description of the drawings
Fig. 1 is the structure diagram of connection alkali system according to embodiments of the present invention.
Reference numeral：
Join alkali system 100, mother liquor heat exchanger 1, heat exchanger AI mother liquors import 11, heat exchanger AI mother liquor outlets 12, heat exchanger
MII mother liquors import 13, heat exchanger MII mother liquor outlets 14, forecooler 2, forecooler mother liquor import 21, forecooler mother liquor outlet 22,
Cool crystallizer 3, crystallizer mother liquor import 31, crystallizer mother liquor outlet 32, salting-out crystallizer interface 33, thickener interface 34,
Outer Cooler 4, Outer Cooler mother liquor import 41, Outer Cooler mother liquor outlet 42, gas electricity generator 5, flue gas waste heat recovery apparatus 6, hot water
Waste-heat recovery device 7, cold circulation line 61, cold circulation line on-off valve 62, hot water outlet 63, user's hot water use end phase
Connect 8.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as needle ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplified description rather than instruction imply that signified device or element must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, " multiple " are meant that at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected or can communicate with one another；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the interaction relationship of connection inside two elements or two elements.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it " under "
It can be in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " including first spy
Sign is right over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " immediately below second feature and obliquely downward or be merely representative of including fisrt feature
Fisrt feature level height is less than second feature.
Connection alkali system 100 according to embodiments of the present invention is described below with reference to Fig. 1.
Connection alkali system 100 according to embodiments of the present invention can include：Mother liquor heat exchanger 1, forecooler 2, cool crystallizer
3rd, Outer Cooler 4, compressor, for power to connection alkali system 100 gas electricity generator 5, more than flue gas waste heat recovery apparatus 6 and hot water
Heat reclamation device 7.
As shown in Figure 1, mother liquor heat exchanger 1 have heat exchanger AI mother liquors (ammonium carbonate and ammonium chloride mixed solution) import 11,
Heat exchanger AI mother liquor outlets 12 and heat exchanger MII mother liquors (ammonium carbonate and ammonium chloride mixed solution) import 13, heat exchanger MII mother liquors
Outlet 14.Wherein, AI mother liquors and the component ratio and pH value of MII mother liquors are had any different.Specifically, mother AI is suitable for from heat exchanger AI mothers
Liquid import 11 flows into mother liquor heat exchanger 1, and mother MII is suitable for flowing into mother liquor heat exchanger 1, AI mother liquors from heat exchanger MII mother liquors import 13
Start to react in mother liquor heat exchanger 1 with MII mother liquors, the mixed solution after reaction flows out mother liquor through heat exchanger AI mother liquor outlets 12
Heat exchanger 1.
Forecooler 2 has forecooler mother liquor import 21 and forecooler mother liquor outlet 22, forecooler mother liquor import 21 and heat exchange
Device AI mother liquor outlets 12 are connected, and forecooler 2 is arranged for flowing out into mixing in forecooler 2 from mother liquor heat exchanger 1
Solution (solution after reacting) is closed to be pre-chilled.In other words, it is flowed out from the heat exchanger AI mother liquor outlets 12 of mother liquor heat exchanger 1
Mixed solution can be flowed into forecooler 2 from forecooler mother liquor import 21 and is pre-chilled to carry out next step operation.By setting
It puts forecooler 2 reaction solution is pre-chilled, the cold load of Outer Cooler 4 can be reduced in this way.
Cool crystallizer 3 has crystallizer mother liquor import 31, crystallizer mother liquor outlet 32, salting-out crystallizer interface 33, thick
Thick device interface 34, crystallizer mother liquor import 31 are connected with forecooler mother liquor outlet 22.Specifically, it is flowed from forecooler mother liquor outlet 22
The mixed solution gone out can flow into cool crystallizer 3 from crystallizer mother liquor import 31 carries out crystallisation by cooling precipitation alkali crystalline solid, alkali
Crystalline solid can discharge cool crystallizer 3 from salting-out crystallizer interface 33, and so as to obtain manufactured alkali, thickener interface 34 is then discharged
Waste material, and remaining mixed solution is flowed out from crystallizer mother liquor outlet 32.
Outer Cooler 4 has Outer Cooler mother liquor import 41, Outer Cooler mother liquor outlet 42, Outer Cooler mother liquor import 41 and crystallizer
Mother liquor outlet 32 is connected, and Outer Cooler mother liquor outlet 42 is connected with crystallizer mother liquor import 31.Specifically, after alkali crystalline solid being precipitated
Mixed solution, which is flowed into from Outer Cooler mother liquor import 41 in Outer Cooler 4, to freeze, then flowed out by Outer Cooler mother liquor outlet 42, from knot
Brilliant device mother liquor import 31, which is flowed back into cool crystallizer 3, further to be crystallized, and as a result, in cycles, is moved in circles, until
Until alkali crystalline solid in mixed solution is all precipitated.
Compressor is arranged for providing cold to Outer Cooler 4 to cool down mixed solution, enable mixed solution more fully,
Efficiently, alkali crystalline solid is quickly precipitated.
With reference to Fig. 1, flue gas waste heat recovery apparatus 6 is connected with gas electricity generator 5 and for recycling the burning of gas electricity generator 5 institute
Exhaust energy possessed by the flue gas of generation, afterheat of hot water retracting device 7 are connected with gas electricity generator 5 and for recycling cooling combustion
Hot water energy possessed by the hot water formed after gas generator 5, wherein flue gas waste heat recovery apparatus 6 can be selectively to pre-
Cooler 2 provides cold.
Specifically, gas electricity generator 5 provides electric energy for whole system, and the exhaust gas generated then enters flue gas waste heat recovery and fills
In putting 6, flue gas waste heat recovery apparatus 6 after the thermal energy of exhaust gas using cooling operation mode is carried out, so as to provide refrigeration for forecooler 2
The energy more needed, and then freezed in advance to flowing into mixed solution therein, alleviate as a result, the working strength of Outer Cooler 4 with
Load, and hot water caused by gas electricity generator 5 can utilize the thermal energy of hot water to carry out two into afterheat of hot water retracting device 7
Secondary power generation saves the energy, achievees the purpose that high efficiency of energy utilizes.
In tradition connection alkali system 100, freeze entirely by 4 alone bear of Outer Cooler, lead to the working strength and load of Outer Cooler 4
It is bigger, need to put into a large amount of man power and material and repair and maintain, and in winter when, by 100 institute of connection alkali system
The refrigeration duty needed is smaller, the refrigeration equipment in Outer Cooler 4 is caused largely to leave unused, utilization rate of equipment and installations is low.
And the present invention is pre-chilled mixed solution by increasing forecooler 2, alleviates Outer Cooler 4 as a result, in summer
Work load, can also be reduced in Outer Cooler 4 setting refrigeration equipment, and in winter when select by a small amount of refrigeration in Outer Cooler 4
Equipment freezes to mixed solution, and refrigeration effect is enough, and then improves utilization rate of equipment and installations.And increase as entire connection alkali
System 100 provides the gas electricity generator 5 of the energy needed for operation, and exhaust gas caused by gas electricity generator 5 can be forecooler 2
Energy is provided, produced hot water can then carry out secondary electricity generation, achieve the purpose that energy multipolarization utilizes, and save the energy, improve energy
The utilization rate of amount.
Connection alkali system 100 according to embodiments of the present invention, the connection alkali system 100 increase gas electricity generator 5 as entire system
The operation of system provides required energy, and exhaust gas caused by gas electricity generator 5 can be that the forecooler 2 newly added provide refrigeration
Energy so as to reduce the load of the refrigeration mixed solution of Outer Cooler 4, and then reduces the quantity of 4 inner compressor of Outer Cooler, reduces connection alkali
The operating cost of system 100, and utilized by the way that generated waste (exhaust gas, waste water) is made full use of to reach energy multipolarization,
Capacity usage ratio is improved, saves the energy.
As shown in Figure 1, heat exchanger AI mother liquors import 11 is located at the top of mother liquor heat exchanger 1 and heat exchanger AI mother liquor outlets 12
Positioned at the bottom of mother liquor heat exchanger 1, heat exchanger MII mother liquors import 13 and heat exchanger MII mother liquor outlets 14 are respectively positioned on mother liquor heat exchange
The side of device 1, and heat exchanger MII mother liquors import 13 is less than heat exchanger MII mother liquor outlets 14.It can make in mother liquor heat exchanger 1 as a result,
AI mother liquors and MII mother liquors can adequately react the mixed solution needed for generating.
According to some embodiments of the present invention, flue gas waste heat recovery apparatus 6 is the cigarette with refrigeration mode and heating mode
Gas hot-water type absorption cooling and warming water machine group.Flue gas caused by gas electricity generator 5 can be made full use of as a result,.The cigarette in summer
Gas waste-heat recovery device 6 is adapted to be in refrigeration mode, freezes at this point, flue gas waste heat recovery apparatus 6 can be forecooler 2, with
Cooling flows into the mixed solution in forecooler 2.Flue gas waste heat recovery apparatus 6 is adapted to be in heating mode when in winter, at this point, cigarette
Gas waste-heat recovery device 6 provides thermal energy for afterheat of hot water retracting device 7, and the energy needed for power generation is provided for it.
Further, fume hot-water type absorption cooling and warming water machine group has recycles for providing the cold of cold to forecooler 2
Pipeline 61 is provided with cold circulation line on-off valve 62, fume hot-water type absorption cooling and warming water machine group on cold circulation line 61
Also there is hot water outlet 63.In summer, suitable for opening the cold circulation line on-off valve 62 on cold circulation line 61, make pre-
Cooler 2 can freeze to mixed solution in advance.And when in winter, the cold circulation line that can be closed on cold circulation line 61 leads to
Disconnected valve 62.Hot water outlet 63 is suitable for generated hot water after outflow flue gas waste heat recovery apparatus 6 is run.
Specifically, afterheat of hot water retracting device 7 is plate heat exchanger.
With reference to Fig. 1, plate heat exchanger and hot water outlet 63 are adapted to be connected 8 using end with user's hot water.As a result, more than flue gas
Heat reclamation device 6 and afterheat of hot water retracting device 7 can flow into user's hot water using end with hot water for people to use, more at one stroke
, take full advantage of the energy and substance in connection alkali system 100.
According to some embodiments of the present invention, crystallizer mother liquor import 31 is located at the side of crystallizer and crystallizer mother liquor goes out
Mouth 32 is located at the top surface of crystallizer, is additionally provided with the mother liquor entered from crystallizer mother liquor import 31 being delivered in crystallizer
The axial-flow pump of crystallizer mother liquor outlet 32.
According to some embodiments of the present invention, forecooler mother liquor import 21 be located at forecooler 2 bottom and forecooler mother liquor
Outlet 22 is located at the tops of forecooler 2, and Outer Cooler mother liquor import 41 is located at the bottom of Outer Cooler 4 and Outer Cooler mother liquor outlet 42
In the top of Outer Cooler 4.Due to being to be flowed by bottom and flowed out from top, mixed solution can adequately be made as a result,
It is cold, and then improve energy utilization rate.
The process run with reference to Fig. 1 distich alkali system 100 is described in detail：
There is provided operation required energy from gas electricity generator 5 to connection alkali system 100 first, not enough power supply is supplemented by power grid.
Mother AI enters from heat exchanger AI mother liquors import 11 in mother liquor heat exchanger 1, and MII mother liquors are entered female by heat exchanger MII mother liquors import 13
In liquid heat exchanger 1, AI mother liquors start with MII mother liquors in mother liquor heat exchanger 1 to react and generate mixed solution, and mixed solution is from changing
Hot device AI mother liquor outlets 12 are flowed out and flowed into forecooler 2 via forecooler mother liquor import 21 to be freezed in advance, after pre- refrigeration
Mixed solution carries out crystallization precipitation alkali from forecooler mother liquor outlet 22 and via the inflow cool crystallizer 3 of crystallizer mother liquor import 31
Crystalline solid, alkali crystalline solid can discharge cool crystallizer 3 from salting-out crystallizer interface 33, and so as to obtain manufactured alkali, thickener connects
Mouth 34 then discharges waste material, and remaining mixed solution is flowed into from 32 outflow of crystallizer mother liquor outlet via Outer Cooler mother liquor import 41
Freeze in Outer Cooler 4, fully the mixed solution after refrigeration is flowed out by Outer Cooler mother liquor outlet 42 and via crystallizer mother liquor
Import 31 is again flowed into cool crystallizer 3 and is crystallized again, in cycles, is moved in circles, until the alkali in mixed solution
Until crystalline solid is all precipitated.Wherein, exhaust gas caused by gas electricity generator 5 enters flue gas waste heat recovery apparatus 6 for precooling
The refrigeration of device 2 provides energy, and hot water caused by gas electricity generator 5 can then flow into afterheat of hot water retracting device 7 and carry out secondary hair
Electricity realizes that energy multi-level utilizes, improves capacity usage ratio.Final flue gas waste heat recovery apparatus 6 and afterheat of hot water retracting device 7 produce
Raw hot water can flow into user's hot water and be connected 8 using end with for users to use.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this
Different embodiments or examples described in bright book are engaged and are combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of alkali system, which is characterized in that including：
Mother liquor heat exchanger, the mother liquor heat exchanger have the import of heat exchanger AI mother liquors, heat exchanger AI mother liquor outlets and heat exchanger MII
Mother liquor import, heat exchanger MII mother liquor outlets；
Forecooler, the forecooler have the import of forecooler mother liquor and forecooler mother liquor outlet, the forecooler mother liquor import with
The heat exchanger AI mother liquor outlets are connected；
There is crystallizer mother liquor import, crystallizer mother liquor outlet, salting-out crystallizer to connect for cool crystallizer, the cool crystallizer
Mouth, thickener interface, the crystallizer mother liquor import are connected with the forecooler mother liquor outlet；And
Outer Cooler, the Outer Cooler have the import of Outer Cooler mother liquor, Outer Cooler mother liquor outlet, the Outer Cooler mother liquor import and institute
It states crystallizer mother liquor outlet to be connected, the Outer Cooler mother liquor outlet is connected with the crystallizer mother liquor import；
Compressor, the compressor are arranged for providing cold to the Outer Cooler；
For to gas electricity generator, the flue gas waste heat recovery apparatus of the alkali system power supply, afterheat of hot water retracting device to be described
Flue gas waste heat recovery apparatus is connected with the gas electricity generator and for recycling flue gas caused by the gas electricity generator burning
Possessed exhaust energy, the afterheat of hot water retracting device are connected with the gas electricity generator and cool down the combustion for recycling
Hot water energy possessed by the hot water formed after gas generator, wherein the flue gas waste heat recovery apparatus can selectively to
The forecooler provides cold.
2. alkali system according to claim 1, which is characterized in that the heat exchanger AI mother liquors import is located at the mother liquor
The top of heat exchanger and the heat exchanger AI mother liquor outlets are located at the bottom of the mother liquor heat exchanger.
3. alkali system according to claim 1, which is characterized in that the heat exchanger MII mother liquors import and the heat exchange
Device MII mother liquor outlets are respectively positioned on the side of the mother liquor heat exchanger, and the heat exchanger MII mother liquors import is less than the heat exchanger
MII mother liquor outlets.
4. alkali system according to claim 1, which is characterized in that the flue gas waste heat recovery apparatus is with refrigeration mould
The fume hot-water type absorption cooling and warming water machine group of formula and heating mode.
5. alkali system according to claim 4, which is characterized in that the fume hot-water type absorption cooling and warming water machine group tool
It is useful for providing the cold circulation line of cold to the forecooler, cold circulation line is provided on the cold circulation line
On-off valve, the fume hot-water type absorption cooling and warming water machine group also have hot water outlet.
6. alkali system according to claim 5, which is characterized in that the afterheat of hot water retracting device is plate-type heat-exchange
Device.
7. alkali system according to claim 6, which is characterized in that the plate heat exchanger and the hot water outlet are suitable
In being connected with user's hot water using end.
8. alkali system according to claim 1, which is characterized in that the crystallizer mother liquor import is located at the crystallizer
Side and crystallizer mother liquor outlet is additionally provided in the crystallizer for will be from institute positioned at the top surface of the crystallizer
The mother liquor for stating crystallizer mother liquor import entrance is delivered to the axial-flow pump of the crystallizer mother liquor outlet.
9. alkali system according to claim 1, which is characterized in that the forecooler mother liquor import is located at the forecooler
Bottom and the forecooler mother liquor outlet is located at the top of the forecooler.
10. alkali system according to claim 1, which is characterized in that the Outer Cooler mother liquor import is located at described outer cold
The bottom of device and the Outer Cooler mother liquor outlet are located at the top of the Outer Cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288529.8A CN108147434B (en) | 2017-12-07 | 2017-12-07 | Join alkali system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288529.8A CN108147434B (en) | 2017-12-07 | 2017-12-07 | Join alkali system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108147434A true CN108147434A (en) | 2018-06-12 |
| CN108147434B CN108147434B (en) | 2019-11-15 |
Family
ID=62466717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711288529.8A Active CN108147434B (en) | 2017-12-07 | 2017-12-07 | Join alkali system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108147434B (en) |
Cited By (1)
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| CN111879031A (en) * | 2020-08-28 | 2020-11-03 | 连云港市福源德邦科技发展有限公司 | Lithium bromide refrigerating device and method in combined-soda-process soda ash production process |
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| CN108147434B (en) | 2019-11-15 |
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