CN108147434B - Join alkali system - Google Patents
Join alkali system Download PDFInfo
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- CN108147434B CN108147434B CN201711288529.8A CN201711288529A CN108147434B CN 108147434 B CN108147434 B CN 108147434B CN 201711288529 A CN201711288529 A CN 201711288529A CN 108147434 B CN108147434 B CN 108147434B
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- Prior art keywords
- mother liquor
- forecooler
- heat exchanger
- crystallizer
- import
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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)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a kind of alkali systems, comprising: 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 recyclable 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 outlet, and forecooler is arranged for that the AI mother liquor flowed out into forecooler from mother liquor heat exchanger is pre-chilled；And flue gas waste heat recovery apparatus is connected and for recycling exhaust energy possessed by flue gas caused by gas electricity generator burning with gas electricity generator, afterheat of hot water recyclable device is connected with gas electricity generator and for being formed by hot water energy possessed by hot water after recycling cooling gas electricity generator, and wherein flue gas waste heat recovery apparatus selectively can provide cooling capacity to forecooler.The overall energy efficiency 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 fields, in particular to a kind of alkali system.
Background technique
In tradition connection alkali alkali-making process system, system institute chilling requirement is all generated by the compressor refrigeration of Outer Cooler, is
Energy consumption is high for system, and ton alkali power consumption is higher, also increases the equipment investment and maintenance expense of system, 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.
Summary of the invention
The present invention is directed to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose, this hair
Bright to propose a kind of alkali system, the overall energy efficiency of the connection alkali system is higher, and the operating cost for joining alkali system is lower.
The connection alkali system of embodiment according to the present invention, comprising: mother liquor heat exchanger, the mother liquor heat exchanger have heat exchanger
The import of AI mother liquor, heat exchanger AI mother liquor outlet and the import of heat exchanger MII mother liquor, heat exchanger MII mother liquor outlet；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 liquor
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
Cooling capacity is provided to the Outer Cooler；For gas electricity generator, the flue gas waste heat recovery apparatus to 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 recyclable device are connected and use with the gas electricity generator
It is formed by hot water energy possessed by hot water after the cooling gas electricity generator of recycling, wherein the flue gas waste heat recovery fills
Setting selectively to provide cooling capacity to the forecooler.
The connection alkali system of embodiment according to the present 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, can also have following additional technical feature according to the connection alkali system of inventive embodiments:
According to some embodiments of the present invention, the heat exchanger AI mother liquor import be located at the mother liquor heat exchanger top and
The heat exchanger AI mother liquor outlet is located at the bottom of the mother liquor heat exchanger.
According to some embodiments of the present invention, the heat exchanger MII mother liquor import and the heat exchanger MII mother liquor outlet are equal
Positioned at the side of the mother liquor heat exchanger, and the heat exchanger MII mother liquor import is lower than the heat exchanger MII mother liquor outlet.
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 cooling capacity circulation line of cooling capacity, is provided with cooling capacity circulation line on-off valve, the cigarette on the cooling capacity 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 recyclable 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.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of alkali system according to an embodiment of the present invention.
Appended drawing reference:
Join alkali system 100, mother liquor heat exchanger 1, heat exchanger AI mother liquor import 11, heat exchanger AI mother liquor outlet 12, heat exchanger
MII mother liquor import 13, heat exchanger MII mother liquor outlet 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, cooling capacity circulation line 61, cooling capacity 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, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain 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 ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is 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 shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate with each other；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the interaction relationship of connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Alkali system 100 according to an embodiment of the present invention is described below with reference to Fig. 1.
Alkali system 100 according to an embodiment of the present invention may include: mother liquor heat exchanger 1, forecooler 2, cool crystallizer
3, Outer Cooler 4, compressor, the gas electricity generator 5 for powering to connection alkali system 100, more than flue gas waste heat recovery apparatus 6 and hot water
Heat recovery apparatus 7.
As shown in Figure 1, mother liquor heat exchanger 1 have heat exchanger AI mother liquor (ammonium carbonate and ammonium chloride mixed solution) import 11,
Heat exchanger AI mother liquor outlet 12 and heat exchanger MII mother liquor (ammonium carbonate and ammonium chloride mixed solution) import 13, heat exchanger MII mother liquor
Outlet 14.Wherein, AI mother liquor and the component ratio and pH value of MII mother liquor are had any different.Specifically, mother AI is suitable for female from heat exchanger AI
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 liquor from heat exchanger MII mother liquor import 13
Start to react in mother liquor heat exchanger 1 with MII mother liquor, the mixed solution after reaction flows out mother liquor through heat exchanger AI mother liquor outlet 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 outlet 12 is connected, and forecooler 2 is arranged for flowing out into mixing in forecooler 2 to 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 outlet 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 sets forecooler 2 reaction solution is pre-chilled, the cooling capacity 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
Mixed solution out can flow into cool crystallizer 3 from crystallizer mother liquor import 31 carries out crystallisation by cooling precipitation alkali crystalline solid, alkali
Cool crystallizer 3 can be discharged from salting-out crystallizer interface 33 in crystalline solid, 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 flows into Outer Cooler 4 from Outer Cooler mother liquor import 41 to freeze, then is flowed out by Outer Cooler mother liquor outlet 42, from knot
Brilliant device mother liquor import 31, which flows 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 be arranged for Outer Cooler 4 provide cooling capacity to cool down mixed solution, enable mixed solution more sufficiently,
Efficiently, alkali crystalline solid is quickly precipitated.
Referring 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 recyclable device 7 are connected with gas electricity generator 5 and for recycling cooling combustion
Hot water energy possessed by hot water is formed by after gas generator 5, wherein flue gas waste heat recovery apparatus 6 can be selectively to pre-
Cooler 2 provides cooling capacity.
Specifically, gas electricity generator 5 provides electric energy for whole system, and the exhaust gas generated then enters flue gas waste heat recovery dress
It sets in 6, flue gas waste heat recovery apparatus 6 is using cooling operation mode is carried out after the thermal energy of exhaust gas, to provide refrigeration for forecooler 2
The energy more needed, and then freezed in advance to mixed solution therein is flowed into, alleviate as a result, the working strength of Outer Cooler 4 with
Load, and hot water caused by gas electricity generator 5 can enter afterheat of hot water recyclable device 7 to utilize the thermal energy of hot water to carry out two
Secondary power generation saves the energy, achievees the purpose that high efficiency of energy utilizes.
In tradition connection alkali system 100, freezes 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 join 100 institute of alkali system
The refrigeration duty needed is smaller, causes the refrigeration equipment in Outer Cooler 4 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 energy needed for operation, and exhaust gas caused by gas electricity generator 5 can be forecooler 2
Energy is provided, produced hot water then will do it secondary electricity generation, achieve the purpose that energy multipolarization utilizes, and save the energy, improve energy
The utilization rate of amount.
Alkali system 100 according to an embodiment of the present invention, it is entire system which, which increases gas electricity generator 5,
The operation of system provides required energy, and exhaust gas caused by gas electricity generator 5 can provide refrigeration for the forecooler 2 newly added
Energy 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 making full use of generated waste (exhaust gas, waste water) to reach energy multipolarization,
Capacity usage ratio is improved, the energy is saved.
As shown in Figure 1, heat exchanger AI mother liquor import 11 is located at the top of mother liquor heat exchanger 1 and heat exchanger AI mother liquor outlet 12
Positioned at the bottom of mother liquor heat exchanger 1, heat exchanger MII mother liquor import 13 and heat exchanger MII mother liquor outlet 14 are respectively positioned on mother liquor heat exchange
The side of device 1, and heat exchanger MII mother liquor import 13 is lower than heat exchanger MII mother liquor outlet 14.It can make in mother liquor heat exchanger 1 as a result,
AI mother liquor and MII mother liquor 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 suitable in refrigeration mode, at this point, flue gas waste heat recovery apparatus 6 can freeze for forecooler 2, with
The cooling mixed solution flowed into forecooler 2.Flue gas waste heat recovery apparatus 6 is suitable for being in heating mode when in winter, at this point, cigarette
Gas waste-heat recovery device 6 is that afterheat of hot water recyclable device 7 provides thermal energy, energy needed for providing power generation for it.
Further, fume hot-water type absorption cooling and warming water machine group has for providing the cooling capacity circulation of cooling capacity to forecooler 2
Pipeline 61 is provided with cooling capacity circulation line on-off valve 62, fume hot-water type absorption cooling and warming water machine group on cooling capacity circulation line 61
Also there is hot water outlet 63.In summer, suitable for opening the cooling capacity circulation line on-off valve 62 on cooling capacity circulation line 61, make pre-
Cooler 2 can freeze in advance to mixed solution.And when in winter, the cooling capacity circulation line that can be closed on cooling capacity circulation line 61 is logical
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 recyclable device 7 is plate heat exchanger.
Referring 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 recovery apparatus 6 and afterheat of hot water recyclable device 7 can flow into user's hot water using end with hot water for people to use, and one action is more
, 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 in crystallizer for the mother liquor entered from crystallizer mother liquor import 31 to be delivered to
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.
It is described in detail below with reference to the process that Fig. 1 distich alkali system 100 is run:
Energy needed for providing operation to connection alkali system 100 from gas electricity generator 5 first, not enough power supply are supplemented by power grid.
Mother AI enters in mother liquor heat exchanger 1 from heat exchanger AI mother liquor import 11, and MII mother liquor is entered female by heat exchanger MII mother liquor import 13
In liquid heat exchanger 1, AI mother liquor starts to react and generate in mother liquor heat exchanger 1 with MII mother liquor mixed solution, and mixed solution is from changing
Hot device AI mother liquor outlet 12 is 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
Cool crystallizer 3 can be discharged from salting-out crystallizer interface 33 in crystalline solid, alkali crystalline solid, to obtain manufactured alkali, thickener is connect
Waste material is then discharged in mouth 34, 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, sufficiently 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 pre-cooling
The refrigeration of device 2 provides energy, and hot water caused by gas electricity generator 5 can then flow into afterheat of hot water recyclable 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 recyclable 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 ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.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 can be combined in any suitable manner in one or more embodiment or examples.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 not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of alkali system characterized by comprising
Mother liquor heat exchanger, the mother liquor heat exchanger have the import of heat exchanger AI mother liquor, heat exchanger AI mother liquor outlet and heat exchanger MII
Mother liquor import, heat exchanger MII mother liquor outlet；
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 outlet is 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 cooling capacity to the Outer Cooler；
For gas electricity generator, the flue gas waste heat recovery apparatus to the alkali system power supply, afterheat of hot water recyclable device is 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 recyclable device are connected with the gas electricity generator and for recycling the cooling combustion
Hot water energy possessed by hot water is formed by after gas generator, wherein the flue gas waste heat recovery apparatus can selectively to
The forecooler provides cooling capacity.
2. alkali system according to claim 1, which is characterized in that the heat exchanger AI mother liquor import is located at the mother liquor
The top of heat exchanger and the heat exchanger AI mother liquor outlet 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 liquor import and the heat exchange
Device MII mother liquor outlet is respectively positioned on the side of the mother liquor heat exchanger, and the heat exchanger MII mother liquor import is lower than the heat exchanger
MII mother liquor outlet.
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
Have for providing the cooling capacity circulation line of cooling capacity to the forecooler, is provided with cooling capacity circulation line on the cooling capacity 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 recyclable 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 located at the top surface of the crystallizer, be additionally provided in the crystallizer for will be from institute
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711288529.8A CN108147434B (en) | 2017-12-07 | 2017-12-07 | Join alkali system |
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| Publication Number | Publication Date |
|---|---|
| CN108147434A CN108147434A (en) | 2018-06-12 |
| CN108147434B true CN108147434B (en) | 2019-11-15 |
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|---|---|---|---|
| CN201711288529.8A Active CN108147434B (en) | 2017-12-07 | 2017-12-07 | Join alkali system |
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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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| CN108147434A (en) | 2018-06-12 |
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