CN109568999A - Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups - Google Patents
Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups Download PDFInfo
- Publication number
- CN109568999A CN109568999A CN201910026350.8A CN201910026350A CN109568999A CN 109568999 A CN109568999 A CN 109568999A CN 201910026350 A CN201910026350 A CN 201910026350A CN 109568999 A CN109568999 A CN 109568999A
- Authority
- CN
- China
- Prior art keywords
- effect
- evaporator
- pot
- secondary steam
- flash
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/06—Flash distillation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention relates to a kind of seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups, and wherein technique specifically includes that drawing 50%~60% vaporizing raw liquor and 40%~50% vaporizing raw liquor respectively is concentrated to get first segment discharging mother liquor and second segment discharging mother liquor；When the impurity content in solution is more than that technique requires, the first segment discharging mother liquor for drawing 20%~50% forces salt discharge；First segment discharging mother liquor enters after mother liquor discharging pump mixes with second segment discharging mother liquor is delivered to mother liquor tank.Its six effects tube-type down-flow evaporator group mainly includes that I effect evaporator~VI effect evaporator and the first~the 4th flash-pot, stoste flash vessel respectively imitate condensate water pot etc., the present invention by stoste segmentation concentration, the secondary steam that the secondary steam of flash distillation production, the secondary steam that forced circulation salt discharge evaporator generates, each flash-pot generate carried out to secondary steam, each effect condensed water that each effect evaporator generates adequately utilized, substantially increase the evaporation efficiency of entire evaporating and concentrating process.
Description
Technical field:
The present invention relates to a kind of seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups.
Background technique:
Evaporation technique and its equipment are indispensable extremely important in alumina producing industry and Chemical Manufacture industry
Production link.Main purpose is to carry out concentration and evaporation to moisture extra in production solution, improves the concentration of solution, is allowed to full
Requirement of the sufficient production technology to solution concentration, while keeping the water balance in production cycle system.
The evaporator that last century China's alumina producing uses is still " external heat Natural Circulation " old-fashioned evaporator, technology
Horizontal and equipment falls behind very much, and China's alumina producing is caused to fluctuate always in decades, lack it is efficient, energy saving, have
Innovative evaporation equipment is the bottleneck problem for restricting alumina producing always.The initial stage nineties, for the first time from European renowned company
The five effect tube-type down-flow evaporators introduced are succeeded in Chalco Guangxi branch company Bayer-process seed-separating mother liquor evaporation technology
Using.This style of evaporator heat transfer performance is good, and evaporation intensity is big, and evaporation efficiency is high, runs smoothly, reliably, durable.This
Afterwards, the producer of domestic alumina industry uses this type evaporator in succession, and the production capacity of aluminium oxide is greatly improved,
Evaporator leading products are still six effect tube-type down-flow evaporator groups at present.
With the continuous development and technological innovation of alumina industry, market is that six effect tube-type down-flow evaporator groups of application are deposited
Deficiency and defect also highlight: such as higher (the especially I effect evaporation of secondary steam band alkali problem, maintenance of equipment frequency
Device), evaporation efficiency and production capacity still have higher room for promotion etc..
Summary of the invention:
Present invention technical problems to be solved first are: providing a kind of sextuple-effect evaporation of higher seed precipitation solution of evaporation efficiency
Concentration technology.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: the sextuple-effect evaporation concentration technology of seed precipitation solution,
It is characterised in that it includes following specific steps:
A, draw IV effect evaporator, III effect evaporator, II effect evaporator, I of 50%~60% vaporizing raw liquor through being sequentially connected in series
Effect evaporator, the first flash-pot, the second flash-pot, third flash-pot, the 4th flash-pot are concentrated by evaporation to obtain first
Section discharging mother liquor；
B, draw stoste flash vessel, VI effect evaporator, V effect evaporator of 40%~50% vaporizing raw liquor through being sequentially connected in series to steam
Hair is concentrated to get second segment discharging mother liquor；
C, when the impurity content in solution is more than that technique requires, the first segment for drawing 20%~50% discharges mother liquor into pressure
Circulation salt discharge evaporator is discharged into salt settling slot after being further concentrated by evaporation and carries out crystallization salt discharge；
D, first segment discharging mother liquor enters after mother liquor discharging pump mixes with second segment discharging mother liquor is delivered to mother liquor tank.
E, while carrying out step a~d, draw oven heats solution of the initial steam into I effect evaporator, I effect evaporation
The secondary steam generated in the separation chamber of device enters the oven heats solution of II effect evaporator, and II imitates in the separation chamber of evaporator
The secondary steam of generation enters the oven heats solution of III effect evaporator, the secondary steaming generated in the separation chamber of III effect evaporator
Vapour enters the oven heats solution of IV effect evaporator, and the secondary steam generated in the separation chamber of IV effect evaporator enters V effect and steams
The oven heats solution of device is sent out, the secondary steam generated in the separation chamber of V effect evaporator enters the heating room of VI effect evaporator
Heated solution, VI, which imitates the secondary steam generated in the separation chamber of evaporator, enters directly contact water cooler progress condensed absorbent；
F, when carrying out step c, draw the secondary steam generated in the effect evaporator of part I and enter forced circulation salt discharge evaporator
Solution in it is heated in heating room, enters V effect by the secondary steam that the separation chamber of forced circulation salt discharge evaporator generates and steams
Send out the oven heats solution of device；
G, when carrying out step a and b, by the first flash-pot, the second flash-pot, third flash-pot, the 4th spontaneous evaporation
Device generate secondary steam respectively enter the separation chamber of II effect evaporator, III effect evaporator separation chamber, IV effect evaporator point
After separation chamber from room, V effect evaporator carries out vapor-liquid separation, into the oven heats solution of lower 1st effective evaporator；And stoste
The secondary steam generated in flash vessel then enters the oven heats solution of VI effect evaporator.
H, while carrying out step a~g, the condensed water that each heating room for imitating evaporator generates is received by this effect condensate water pot
Collection, the condensed water that the heating room of I effect evaporator generates sequentially enter the progress of I effect of effect -1#~I-n# (n≤6) condensate water pot
Flash distillation, the secondary steam of I each self-generating of the effect of effect -1#~I-n# (n≤6) condensate water pot respectively enter I~N (N≤VI) and imitate evaporation
The oven heats solution of device, a condensed water are delivered to a condensate draining through a condensate pump；II~V effect evaporator
The time condensation water that generates of heating room respectively enter lower effect condensate water pot and carry out multistage flash distillation, II~VI effect condensate water pot generation
Secondary steam enter the oven heats solution of this effect evaporator；Condensed water in forced circulation salt discharge evaporator heating chamber into
Enter the oven heats solution that the secondary steam that the flash distillation of V effect condensate water pot generates enters V effect evaporator；Time condensation water is through two
Secondary condensate pump is delivered to time condensation sink.
As a preferred embodiment, it in step d, in the top setting vacuum pump interface for directly contacting water cooler and connects true
Empty pump directly contacts the incoagulable gas in water cooler using vacuum pump suction, makes directly to contact formation vacuum work in water cooler
Condition.
As a preferred embodiment, each to imitate the respective separation chamber of evaporator and heat room following by outside in step a
Ring pipeline connection is provided with circulating pump on circulation line, and each solution imitated in evaporator separating chamber is transported to upper one through punishment in advance pump
Imitate the circulating pump feed inlet of evaporator；In stepb, respectively the effect respective separation chamber of evaporator and heating room pass through external circulation
Pipeline connection, circulating pump is provided on circulation line, and the solution in VI effect evaporator separating chamber is transported to V effect through punishment in advance pump and steams
Send out the circulating pump inlet of device；In step c, 30%~50% first segment discharging mother liquor is pumped into pressure by forced circulation charging
Salt discharge evaporator is recycled, the separation chamber of forced circulation salt discharge evaporator is connected to by external circulation line with heating room, is recycled
It is provided with forced circulation pump on pipeline, completes the solution being concentrated by evaporation by forced circulation discharging and is pumped into salt settling slot.
The beneficial effects of the present invention are: by stoste stage evaporation concentration, to it is each effect evaporator generate secondary steam,
Each effect condensed water carries out secondary steam, each flash-pot of the secondary steam of flash distillation generation, the generation of forced circulation salt discharge evaporator
The secondary steam generated is adequately utilized, and is substantially increased the evaporation efficiency of entire evaporating and concentrating process, is made stoste feeding flow
Amount improves about 20% compared with traditional sextuple-effect evaporation technique, and evaporation volume improves about 15%~25%, and steam consumption for evaporation ratio is then
15%~25% is reduced, secondary steam condensed water alkalinity reduces 50% or so, and the alkalinity of recirculated cooling water also reduces
30%~50%, evaporation efficiency is substantially increased, evaporation energy consumption is reduced, and reduces secondary steam band alkali number.
The further technical problems to be solved of the present invention are: providing a kind of higher six effects tube type falling-film evaporation of evaporation efficiency
Device group.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: one kind six imitates tube-type down-flow evaporator group,
It further include stoste flash vessel, first for implementing above-mentioned sextuple-effect evaporation concentration technology, including I effect evaporator~VI effect evaporator
Flash-pot~the 4th flash-pot and forced circulation salt discharge evaporator, wherein IV effect evaporator, III effect evaporator, II effect
Evaporator, I effect evaporator, the first flash-pot~the 4th flash-pot, which successively couple, forms first segment solution concentration circuit；It is former
Liquid flash vessel, VI effect evaporator, V effect evaporator, which successively couple, forms second segment solution concentration circuit；It is concentrated through first segment solution
Part solution after the concentration of circuit is further separated into forced circulation salt discharge evaporator and forms third section solution concentration circuit；
The secondary steam outlet of each effect evaporator separating chamber is connected to the heating room steam inlet of lower 1st effective evaporator, VI effect
The secondary steam outlet of evaporator is connected to direct contact water cooler；
The secondary steam outlet of I effect evaporator separating chamber and the steam inlet of forced circulation salt discharge evaporator heating chamber connect
Logical, the secondary steam outlet of forced circulation salt discharge evaporator separating chamber is connected to the heating room steam inlet of V effect evaporator；
The outlet of first order flash-pot~fourth stage flash-pot secondary steam is separated with II~V effect evaporator respectively
The steam inlet of the connection of room steam inlet, II~V effect evaporator separating chamber is located at the lower section of demister；
The secondary steam outlet of stoste flash vessel is connected to VI effect evaporator heating chamber's steam inlet；
I effect of effect -1#~I-n# (n≤6) condensate water pot, I effect-n# condensate water pot are connected in turn on the I effect evaporator
Connect a condensate draining；Secondary steam outlet, I effect -1# are respectively arranged on I effect of effect -1#~I-n# (n≤6) condensate water pot
~I effect-n# (n≤6) condensate water pot secondary steam outlet be separately connected 1~N (N≤VI) imitate evaporator heating chamber's steam into
Mouthful；
Second condensed water tank~VI effect condensate water pot has been connected respectively on the II effect evaporator~VI effect evaporator,
Second condensed water tank~VI effect condensate water pot is sequentially connected in series, and second condensed water tank~VI effect condensate water pot upper end offers steam
Outlet, second condensed water tank~VI effect condensate water pot steam (vapor) outlet are communicated to II effect evaporator~VI effect evaporation correspondingly
Device heats the steam inlet of room, and VI effect condensate water pot connects time condensation sink.
As a preferred embodiment, tops are provided with row's fixed gas system on I~VI effect evaporator, to be discharged in time
It is mixed into a small amount of air and other incoagulable gas of water vapour.
As a preferred embodiment, I~IV effect respective separation chamber of evaporator and heating room pass through external circulation line
It is connected to, circulating pump is provided on circulation line, the discharge port of above-mentioned each effect evaporator separating chamber is connected to upper one by punishment in advance pump
Imitate the circulating pump feed inlet of evaporator；V effect, the VI effect respective separation chamber of evaporator and heating room pass through external circulation line
It is connected to, circulating pump is provided on circulation line, the discharge port of VI effect evaporator separating chamber is connected to the evaporation of V effect by punishment in advance pump
The circulating pump feed inlet of device；The feed inlet of forced circulation salt discharge evaporator passes through forced circulation feed pump and the 4th flash-pot
The separation chamber of discharge port connection, forced circulation salt discharge evaporator is connected to heating room by external circulation line, circulation line
On be provided with forced circulation pump, the discharge port of forced circulation salt discharge evaporator is connected by forced circulation discharging pump and salt settling slot
It is logical.
As a preferred embodiment, the I effect evaporator is I effect pipe split type including setting up and down and interconnected
Formula falling film heating room and I effect liquid collecting room, the I effect separation chamber for being disposed side by side on I effect liquid collecting room side, I effect liquid collecting room and I effect separation
Room is connected by communicating pipe.
As a preferred embodiment, the VI effect evaporator is split type, including VI effect heats room, is connected to the heating of VI effect
VI effect liquid collecting room of room lower end, VI effect liquid collecting room pass through connecting tube and the VI effect separation chamber for being disposed in parallel in VI effect liquid collecting room side
Connection is provided with the outlet of VI effect secondary steam on the top of VI effect separation chamber, and the upper end of VI effect separation chamber is upper cone, upper cone
Upper to be tightly connected vertically arranged direct contact water cooler, VI effect secondary steam outlet insertion directly contacts in water cooler, epicone
Cyclic annular catch basin is formed between external side wall and directly contact water cooler inner sidewall, water cooler top is directly contacted and offers circulation
Upper water inlet, directly contacts and offers the lower water out of circulation on water cooler lower sides, and circulation is lauched outlet ring-type and catchments
A block baffle has been blocked in slot, VI effect secondary steam outlet top, and baffle exports separately positioned, baffle and VI with VI effect secondary steam
Imitate area of the annular surface area between secondary steam outlet not less than VI effect secondary steam outlet.
The beneficial effects of the present invention are: due to it is of the present invention six effect tube-type down-flow evaporator group by I~VI imitate evaporator
Two sections of solution concentration circuits are distributed into, shortens the path in solution concentration circuit, improves thickening efficiency, wherein one section is dodged by stoste
Steaming device is tentatively flashed, and VI, the V effect evaporator for then entering back into negative pressure operating condition is further concentrated, and improves this section of solution concentration
The thickening efficiency in circuit finally makes the evaporation efficiency of entire six effects tube-type down-flow evaporator group be increased dramatically, and using strong
System circulation salt discharge evaporator carries out salt discharge to solution, controls impurity content in solution.
Meanwhile by the steam-return line of optimization design, make full use of the separation chamber of each effect evaporator, respectively imitate condensate water pot,
The secondary steam heat that the separation chamber of first~the 4th flash-pot and stoste flash vessel, forced circulation salt discharge evaporator generates
Can, solution is heated, steam energy consumption is effectively reduced.
Detailed description of the invention:
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is the solution concentration flow path figure of technique of the present invention；
Fig. 2 is the steam utilization flow chart of technique of the present invention；
Fig. 3 is the condensed water heat energy utilization flow chart of technique of the present invention；
Fig. 4 is the structural schematic diagram of six effects tube-type down-flow evaporator group of the present invention；
Fig. 5 is the structural schematic diagram of I effect evaporator of the present invention；
Fig. 6 is the structural schematic diagram of VI effect evaporator of the present invention.
In Fig. 4~Fig. 6: 1, I effect evaporator, 1-1, I effect tube type falling-film heater, 1-2, I effect liquid collecting room, 1-3, I effect point
From room, 1-4, communicating pipe, 2, II effect evaporator, 3, III effect evaporator, 4, IV effect evaporator, 5, V imitates evaporator, and 6, VI effect is steamed
Send out device, 6-1, VI effect heating room, 6-2, VI effect liquid collecting room, 6-3, connecting tube, 6-4, VI effect separation chamber, 6-5, VI effect secondary steam
Outlet, 6-6, upper cone, 6-7, catch basin, 6-8, baffle, 6-9, connecting rod, 7, stoste flash vessel, the 8, first flash-pot, 9,
Second flash-pot, 10, third flash-pot, the 11, the 4th flash-pot, 12, forced circulation salt discharge evaporator, 13, directly connect
Water cooler is touched, 13-2, water inlet on 13-1, circulation recycles lower water out, 14-1, I effect -1# condensate water pot, 14-2, I effect -2#
Condensate water pot, 14-3, I effect -3# condensate water pot, 14-4, I effect -4# condensate water pot, 15, second condensed water tank, 16, III effect condensation
Water pot, 17, IV effect condensate water pot, 18, V effect condensate water pot, 19, VI effect condensate water pot, 20, circulating pump, 21, punishment in advance pump, 22,
Forced circulation feed pump, 23, forced circulation pump, 24, forced circulation discharging pump, 25, condensate pumps, 26, time condensation water
Pump, 27, mother liquor discharging pump, 28, stoste feed pump, 29, row's fixed gas system, 30, vacuum pump, 31, pressure effect condensate water pot.
Specific embodiment:
With reference to the accompanying drawing, detailed description of the present invention specific embodiment.
As shown in FIG. 1 to 3, the sextuple-effect evaporation concentration technology of seed precipitation solution, comprises the following specific steps that:
A, draw IV effect evaporator, III effect evaporator, II effect steaming of 50% or 55% or 60% vaporizing raw liquor through being sequentially connected in series
Hair device, I effect evaporator, the first flash-pot, the second flash-pot, third flash-pot, the 4th flash-pot are concentrated by evaporation
To first segment discharging mother liquor, wherein~IV effect respective separation chamber of evaporator of I effect and heating room pass through external circulation line and connect
It is logical, circulating pump is provided on circulation line, each solution imitated in evaporator separating chamber is transported to upper 1st effective evaporator through punishment in advance pump
Circulating pump feed inlet, such as III effect evaporator separation chamber with heating room by outside circulation line be connected to, circulation line
On be provided with circulating pump, the part solution in III effect evaporator separating chamber can convey the heating into III effect evaporator by circulating pump
Room forms circulation loop, is concentrated repeatedly, and the part in III effect evaporator separating chamber can also be pumped by punishment in advance and be transported to the evaporation of II effect
The circulating pump feed inlet of device, the heating room that the circulating pump through II effect evaporator is transported to II effect evaporator are heated, in this way may be used
Ensure that the solution for entering II effect evaporator from III effect evaporator separating chamber fully enters the heating room of II effect evaporator, without straight
The separation chamber into II effect evaporator is tapped into, the inefficient cycle of solution is avoided.
B, stoste flash vessel of 50% or 45% or 40% vaporizing raw liquor through being sequentially connected in series after step a shunting, VI effect
Evaporator, V effect evaporator are concentrated by evaporation to obtain second segment discharging mother liquor；VI effect evaporator, the V effect respective separation chamber of evaporator
Pass through outer loop pipeline connection with heating room, circulating pump, the solution in VI effect evaporator separating chamber are provided on circulation line
The circulating pump inlet of V effect evaporator is transported to through punishment in advance pump.
C, when impurity (sodium carbonate, sodium sulphate etc.) content in solution is more than that technique requires, with forced circulation feed pump
Draw 20%~50% first segment discharging mother liquor be further concentrated by evaporation into forced circulation salt discharge evaporator after be discharged into salt settling slot
Carry out crystallization salt discharge；The separation chamber and heating room of forced circulation salt discharge evaporator pass through outer loop pipeline connection, circulation line
On be provided with forced circulation pump, complete be concentrated by evaporation solution by forced circulation discharging is pumped into salt settling slot.
D, first segment discharging mother liquor enters after mother liquor discharging pump mixes with second segment discharging mother liquor is delivered to mother liquor tank.
E, while carrying out step a~d, draw oven heats solution of the initial steam into I effect evaporator, I effect evaporation
The secondary steam generated in the separation chamber of device enters the oven heats solution of II effect evaporator, and II imitates in the separation chamber of evaporator
The secondary steam of generation enters the oven heats solution of III effect evaporator, the secondary steaming generated in the separation chamber of III effect evaporator
Vapour enters the oven heats solution of IV effect evaporator, and the secondary steam generated in the separation chamber of IV effect evaporator enters V effect and steams
The oven heats solution of device is sent out, the secondary steam generated in the separation chamber of V effect evaporator enters the heating room of VI effect evaporator
Heated solution, VI, which imitates the secondary steam generated in the separation chamber of evaporator, enters directly contact water cooler progress condensed absorbent；
F, when carrying out step c, draw the secondary steam generated in the effect evaporator of part I and enter forced circulation salt discharge evaporator
Solution in it is heated in heating room, enters V effect by the secondary steam that the separation chamber of forced circulation salt discharge evaporator generates and steams
Send out the oven heats solution of device；
G, when carrying out step a and b, by the first flash-pot, the second flash-pot, third flash-pot, the 4th spontaneous evaporation
Device generate secondary steam respectively enter the separation chamber of II effect evaporator, III effect evaporator separation chamber, IV effect evaporator point
After separation chamber from room, V effect evaporator carries out vapor-liquid separation, into the oven heats solution of lower 1st effective evaporator；And stoste
The secondary steam generated in flash vessel then enters the oven heats solution of VI effect evaporator.
H, while carrying out step a~g, the condensed water that each heating room for imitating evaporator generates is received by this effect condensate water pot
Collection, the condensed water that the heating room of I effect evaporator generates sequentially enter the progress of I effect of effect -1#~I-n# (n≤6) condensate water pot
Flash distillation, the secondary steam of I each self-generating of the effect of effect -1#~I-n# (n≤6) condensate water pot respectively enter I~N (N≤VI) and imitate evaporation
The oven heats solution of device, a condensed water are delivered to a condensate draining through a condensate pump；II~V effect evaporator
The time condensation water that generates of heating room respectively enter lower effect condensate water pot and carry out multistage flash distillation, II~VI effect condensate water pot generation
Secondary steam enter the oven heats solution of this effect evaporator；The condensation that the heating room of forced circulation salt discharge evaporator generates
Water entered for V secondary steam the adding into V effect evaporator for imitating condensate water pot flash distillation generation after imitating condensate water pot collection by forcing
Hot cell heated solution；Time condensation water is collected to VI effect condensate water pot after multistage flash distillation and is delivered to two through time condensation water pump
Secondary condensate draining.
In the present embodiment, tops are provided with row's fixed gas system on I~VI effect evaporator, are mixed into water with timely discharge
The a small amount of air and other incoagulable gas of steam.
In step e, vacuum pump interface is set at the top of directly contact water cooler and is connected vacuum pump 30 (referring to fig. 4),
Incoagulable gas in directly contact water cooler 13 is aspirated using vacuum pump 30, makes directly to contact the formation vacuum work of water cooler 13
Condition accelerates secondary steam to enter water cooler and is condensed, it is ensured that VI effect evaporator separating chamber stable gas pressure improves evaporation efficiency.
Fig. 4~Fig. 6 is that one kind six imitates tube-type down-flow evaporator group, for implementing above-mentioned sextuple-effect evaporation concentration technology, such as Fig. 4
Shown, six effect tube-type down-flow evaporator groups include that I effect evaporator 1~VI imitates evaporator 6, further include stoste flash vessel 7, first from
Evaporator 8~the 4th flash-pot 11 and forced circulation salt discharge evaporator 12, wherein the IV effect effect of evaporator 4, III evaporator 3,
II effect evaporator 2, I imitates evaporator 1, the 8~the 4th flash-pot 11 of the first flash-pot and successively couples that form first segment solution dense
Retract road；The effect effect evaporator 5 of evaporator 6, V of stoste flash vessel 7, VI, which successively couples, forms second segment solution concentration circuit；Through
It is dense that part solution after one section of solution concentration circuit concentration is further separated into the formation third section solution of forced circulation salt discharge evaporator 12
Retract road；
First segment solution is concentrated circuit and is met with second segment solution concentration circuit for being concentrated by evaporation solution with obtaining concentration
It is required that mother liquor, be divided into two sections of concentrations and improve thickening efficiencies, reduce energy consumptions, third section solution concentration circuit is for controlling in mother liquor
Impurity content, it is ensured that mother liquor quality.
The 8~the 4th flash-pot 11 of the first flash-pot in first segment solution concentration circuit can not need external offer
In the case where heat, the high temperature that has using solution itself, high pressure condition carry out expander, and spontaneous evaporation goes out in solution
Part secondary steam, while the temperature of solution, pressure reduction, concentration increase.In the 8~the 4th flash-pot 11 of first flash-pot
It can be respectively arranged with demister, gas-liquid separation is carried out to secondary steam, removal lye drop keeps the secondary steam of discharge cleaner.
Solution is circulated during " flash distillation " simultaneously in the 8~the 4th flash-pot 11 of the first flash-pot, is made
Flash distillation carries out more complete.
Second segment solution is concentrated in circuit, and solution temperature can be effectively reduced in stoste flash vessel 7, improves solution concentration, makes
Solution temperature difference reduces in solution temperature and VI effect evaporator 6, reduces the violent journey of flash distillation when solution enters VI effect evaporator 6
Degree reduces the workload of demister (not shown) in VI effect 6 separation chamber of evaporator, substantially reduces from VI effect evaporator 6
The band alkali number of the secondary steam of separation chamber's discharge.
As shown in figure 4, separation chamber's discharge port of the discharge port of the 4th flash-pot 11, V effect evaporator 5 passes through mother liquor
Discharging pump 27 connects mother liquor tank.
As shown in figure 4, tops are provided with row's fixed gas system on I~VI effect evaporator, water is mixed into timely discharge
The a small amount of air and other incoagulable gas of steam.
In the present embodiment, stoste imitates evaporator 4 to stoste flash vessel 7, IV respectively by stoste feed pump 28 and conveys stoste.
The secondary steam outlet of each effect evaporator separating chamber is connected to the heating room steam inlet of lower 1st effective evaporator, VI effect
The secondary steam outlet of evaporator 6 is connected to direct contact water cooler 13, is quickly absorbed using direct contact water cooler 13 secondary
Steam makes the secondary steam of VI effect evaporator 6 accelerate evolution, improves evaporation efficiency；
The heating room steam inlet of the secondary steam outlet and forced circulation salt discharge evaporator 12 of I effect 1 separation chamber of evaporator
Connection, separation chamber's secondary steam outlet of forced circulation salt discharge evaporator 12 and the heating room steam inlet of V effect evaporator 5 connect
It is logical, make full use of the secondary steam generated in the separation chamber for forcing effect circulation salt discharge evaporator 12.
Evaporator 2~V is imitated with II respectively in the secondary steam outlet of the first order 8~fourth stage of flash-pot flash-pot 11
Separation chamber's steam inlet connection of evaporator 5 is imitated, separation chamber's steam inlet that II effect evaporator 2~V imitates evaporator 5, which is located at, to be removed
The lower section of foam device；The secondary steam generated in the first order 8~fourth stage of flash-pot flash-pot 11 is respectively through II effect evaporator 2
The indoor demister of separation of~V effect evaporator 5 carries out vapor-liquid separation, sufficiently removes the lye drop carried secretly in secondary steam, drop
Low secondary steam band alkali number,
The secondary steam outlet of stoste flash vessel 7 is connected to the heating room steam inlet of VI effect evaporator 6, makes full use of original
The secondary steam of liquid flash vessel 7；It is provided with demister in stoste flash vessel 7, to reduce the band alkali number of secondary steam.
I effect the -1# condensate water pot effect of 14-1~I-n# (n≤6) condensate water pot 14- is connected in turn on the I effect evaporator 1
N, I effect-n# condensate water pot 14-n condensate draining of connection；I effect the -1# condensate water pot effect of 14-1~I-n# (n≤6) condensate water pot
It is respectively arranged with secondary steam on 14-n to export, the two of I effect the -1# condensate water pot effect of 14-1~I-n# (n≤6) condensate water pot 14-n
Secondary steam (vapor) outlet is separately connected 1~N (N≤VI) and imitates evaporator heating chamber's steam inlet；The water outlet of I effect-n# condensate water pot 14-n
Mouth is connected to a condensate pump 25, and a condensed water in I effect-n# condensate water pot 14-n is discharged into one through a condensate pump 25
Secondary condensate draining.
In the present embodiment, n=4, N=IV a, condensed water is recycled by 4 flash distillations recycling secondary steam, is filled
Divide the thermal energy of condensed water of recycling, reduces steam consumption for evaporation.
The II effect evaporator 2~VI, which is imitated, has been connected respectively the effect condensation of second condensed water tank 15~VI on evaporator 6
Water pot 19, second condensed water tank 15~VI are imitated condensate water pot 19 and are sequentially connected in series, and second condensed water tank 15~VI imitates condensate water pot 19
Upper end offers steam (vapor) outlet, and the steam (vapor) outlet that second condensed water tank 15~VI imitates condensate water pot 19 is communicated to correspondingly
II effect evaporator 2~VI imitates the heating room steam inlet of evaporator 6, and the heating room of forced circulation salt discharge evaporator 12 generates cold
Condensate is evaporated by flashing the secondary steam generated into V effect condensate water pot 18 after the pressure effect collection of condensate water pot 31 and imitating into V
The oven heats solution of device 5；Time condensation water is collected after multistage flash distillation to VI effect condensate water pot 19 and through time condensation water
Pump 26 is delivered to time condensation sink.
The setting that condensate water pot 19 is imitated by above-mentioned second condensed water tank 15~VI, to the II effect effect evaporation of evaporator 2~VI
The thermal energy for the time condensation water that device 6 generates adequately is recycled, and steam consumption for evaporation is further decreased.
I effect evaporator 1~IV is imitated the respective separation chamber of evaporator 4 and is connected to heating room by external circulation line, follows
Endless tube road is provided with circulating pump 20, and solution circulation flow is dynamic some or all of in driving this effect evaporator of circulating pump 20 steams repeatedly
Hair concentration, the discharge port of above-mentioned each effect evaporator separating chamber by punishment in advance pump 21 be connected to the circulating pump 20 of upper 1st effective evaporator into
Material mouth, to solution is directly sent at 20 feed inlet of circulating pump of upper 1st effective evaporator, the circulating pump through upper 1st effective evaporator
20 are sent into the heating heating indoor of upper 1st effective evaporator, and solution is avoided to be sent directly into the separation chamber of 1st effective evaporator and cause
Inefficient cycle；V effect evaporator 5, VI is imitated the respective separation chamber of evaporator 6 circulation line for passing through outside same as room is heated and is connected
It is logical, circulating pump 20 is again provided on circulation line, the discharge port of VI effect 6 separation chamber of evaporator is connected to V by punishment in advance pump 21
Imitate 20 feed inlet of circulating pump of evaporator 5；The feed inlet of forced circulation salt discharge evaporator 12 by forced circulation feed pump 22 with
The discharge port of 4th flash-pot 11 is connected to, and the separation chamber and heating room of forced circulation salt discharge evaporator 12 pass through external circulation
Pipeline connection, forced circulation pump 23 is provided on circulation line, and the discharge port of forced circulation salt discharge evaporator 12 is followed by forcing
Ring discharging pump 24 is connected to salt settling slot.
As shown in figure 5, I effect evaporator 1 is I effect tube type falling-film heating split type including setting up and down and interconnected
The effect of room 1-1 and I liquid collecting room 1-2, I effect the separation chamber 1-3, I effect liquid collecting room 1-2 and I for being disposed side by side on I side effect liquid collecting room 1-2
Effect separation chamber 1-3 is connected by communicating pipe 1-4.
I split type effect evaporator 1 provides bigger flash distillation space, improves evaporation efficiency, and I effect liquid collecting room 1-2 is collected
After temperature reaches the solution of boiling point, the solution of the fluidized state on liquid level is sent into I effect separation chamber 1- by communicating pipe 1-4
Flash distillation in 3, it is ensured that imitate the solution of separation chamber 1-3 in fluidized state into I, it is ensured that flash evaporation effect.
As shown in fig. 6, VI effect evaporator 6 be it is split type, including VI effect heating room 6-1, be connected to VI effect heating room 6-1 under
The VI effect liquid collecting room 6-2 at end, VI effect liquid collecting room 6-2 is by connecting tube 6-3 and is disposed in parallel in the VI of VI side effect liquid collecting room 6-2
Separation chamber 6-4 connection is imitated, the top of VI effect separation chamber 6-4 is provided with VI effect secondary steam outlet 6-5, VI effect separation chamber 6-4
Upper end be upper cone 6-6, vertically arranged direct contact water cooler 13, VI effect secondary steam are tightly connected on upper cone 6-6
It exports 6-5 insertion directly to contact in water cooler 13, be formed between upper cone 6-6 lateral wall and directly contact 13 inner sidewall of water cooler
Cyclic annular catch basin 6-7 directly contacts 13 top of water cooler and offers the upper water inlet 13-1 of circulation, directly contact water cooler lower side
The lower water out 13-2 of circulation is offered on wall, is recycled lower water out 13-2 and is connected to cyclic annular catch basin 6-7, VI effect secondary steam outlet
6-5 has blocked top a block baffle 6-8, and the effect secondary steam of baffle 6-8 and VI outlet 6-5 is separately positioned, and baffle 6-8 passes through connection
Bar 6-9 is connected on directly contact water cooler 13 or on upper cone 6-6, between the effect secondary steam of baffle 6-8 and VI outlet 6-5
Area of the annular surface area not less than VI effect secondary steam outlet.
The guidance that pipeline is needed not move through by the secondary steam that separator flashes off is directly entered directly contact water cooler
13 are quickly absorbed by recirculated water, and VI effect secondary steam outlet 6-5 is provided at the top of VI effect separation chamber 6-4, and secondary steam enters
Directly contact water cooler 13 not will receive any resistance, flow very unimpeded.After secondary steam enters directly contact water cooler 13
It is uniformly upward along directly contact water cooler 13, it is inversely directly contacted with recirculated water, secondary steam is by rapid condensation Cheng Shui, VI effect point
From in the 6-4 of room, there is no the presence of the secondary steam of delay, persistently keep the low-pressure state in VI effect separation chamber 6-4, evaporation efficiency
It is greatly improved.
The present embodiment passes through in the secondary steam that generates to stoste segmentation concentration, to each effect evaporator, each effect condensate water pot
The secondary steam generated, the secondary steam that forced circulation salt discharge evaporator 12 generates, the first~the 4th flash-pot is flashed to generate
Secondary steam and stoste flash vessel 7 generate secondary steam adequately utilized, substantially increase entire evaporation and concentration
The evaporation efficiency of technique makes stoste feed rate improve about 20% compared with traditional sextuple-effect evaporation technique, and evaporation volume improves
About 15%~25%, and steam consumption for evaporation ratio then reduces 15%~25%, secondary steam condensed water alkalinity reduces 50% left side
The alkalinity on the right side, recirculated cooling water also reduces 30%~50% or so, substantially increases evaporation efficiency, reduces evaporation energy
Consumption, and reduce secondary steam band alkali number.
Below be using seed precipitation solution sextuple-effect evaporation concentration technology of the present invention and six effect tube-type down-flow evaporator groups into
The evaporation effect of row seed precipitation solution concentration is planted with the seed precipitation solution sextuple-effect evaporation concentration technology using domestic certain producer design
The evaporation effect deck watch (by taking 300T/h six imitates tube-type down-flow evaporator group as an example) of decomposition mother solution concentration:
By the comparison of upper table as it can be seen that using seed precipitation solution sextuple-effect evaporation concentration technology of the present invention and six effect tubular type drops
Film evaporator group carries out the concentration of seed precipitation solution, and inlet amount, evaporation volume, steam consumption ratio, secondary steam condensed water alkalinity, circulation are cold
But all indicators are better than the indices of traditional handicraft for water alkalinity etc..
The principles and effects of the invention, and the embodiment that part uses only is illustrated in above-described embodiment,
And is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from the invention structure
Under the premise of think of, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (8)
1. the sextuple-effect evaporation concentration technology of seed precipitation solution, which is characterized in that comprise the following specific steps that:
A, draw IV effect evaporator, III effect evaporator, II effect evaporator, I effect steaming of 50%~60% vaporizing raw liquor through being sequentially connected in series
Hair device, the first flash-pot, the second flash-pot, third flash-pot, the 4th flash-pot, which are concentrated by evaporation to obtain first segment, to be gone out
Expect mother liquor；
B, it is dense to draw stoste flash vessel of 40%~50% vaporizing raw liquor through being sequentially connected in series, VI effect evaporator, V effect evaporator evaporation
Contracting obtains second segment discharging mother liquor；
C, when the impurity content in solution is more than that technique requires, the first segment for drawing 20%~50% discharges mother liquor into forced circulation
Salt discharge evaporator is discharged into salt settling slot and carries out crystallization salt discharge after being further concentrated by evaporation；
D, first segment discharging mother liquor enters after mother liquor discharging pump mixes with second segment discharging mother liquor is delivered to mother liquor tank.
E, while carrying out step a~d, draw initial steam into the oven heats solution of I effect evaporator, I imitates evaporator
The secondary steam generated in separation chamber enters the oven heats solution of II effect evaporator, generates in the separation chamber of II effect evaporator
Secondary steam enter III effect evaporator oven heats solution, III effect evaporator separation chamber in generation secondary steam into
Enter the oven heats solution of IV effect evaporator, the secondary steam generated in the separation chamber of IV effect evaporator enters V effect evaporator
Oven heats solution, V effect evaporator separation chamber in generate secondary steam enter VI imitate evaporator oven heats
Solution, VI, which imitates the secondary steam generated in the separation chamber of evaporator, enters directly contact water cooler progress condensed absorbent；
F, when carrying out step c, draw part I and imitate the heating that the secondary steam generated in evaporator enters forced circulation salt discharge evaporator
Solution in it is heated in room, enters V effect evaporator by the secondary steam that the separation chamber of forced circulation salt discharge evaporator generates
Oven heats solution；
G, it when carrying out step a and b, is produced by the first flash-pot, the second flash-pot, third flash-pot, the 4th flash-pot
Raw secondary steam respectively enter the separation chamber of II effect evaporator, III effect evaporator separation chamber, IV effect evaporator separation chamber,
After the separation chamber of V effect evaporator carries out vapor-liquid separation, into the oven heats solution of lower 1st effective evaporator；And stoste flashes
The secondary steam generated in device then enters the oven heats solution of VI effect evaporator.
H, while carrying out step a~g, the condensed water that each heating room for imitating evaporator generates is collected by this effect condensate water pot, and I
The condensed water that the heating room of effect evaporator generates sequentially enters I effect of effect -1#~I-n# (n≤6) condensate water pot and is flashed,
The secondary steam of I each self-generating of the effect of effect -1#~I-n# (n≤6) condensate water pot respectively enters I~N (N≤VI) and imitates adding for evaporator
Hot cell heated solution, a condensed water are delivered to a condensate draining through a condensate pump；The heating of II~V effect evaporator
The time condensation water that room generates respectively enters lower effect condensate water pot and carries out multistage flash distillation, and II~VI effect condensate water pot generates secondary
Steam enters the oven heats solution of this effect evaporator；Condensed water in forced circulation salt discharge evaporator heating chamber enters V effect
The secondary steam that condensate water pot flash distillation generates enters the oven heats solution of V effect evaporator；Time condensation water is collected to VI effect
Condensate water pot is delivered to time condensation sink through time condensation water pump.
2. the sextuple-effect evaporation concentration technology of seed precipitation solution according to claim 1, which is characterized in that in step e, direct
The top setting vacuum pump interface of contact water cooler simultaneously connects vacuum pump, is directly contacted in water cooler not using vacuum pump suction
Solidifying property gas makes directly to contact formation vaccum working condition in water cooler.
3. the sextuple-effect evaporation concentration technology of seed precipitation solution according to claim 1, which is characterized in that each to imitate in step a
The respective separation chamber of evaporator is connected to heating room by external circulation line, and circulating pump is provided on circulation line, each to imitate
Solution in evaporator separating chamber is transported to the circulating pump feed inlet of upper 1st effective evaporator through punishment in advance pump；In stepb, each effect is steamed
The hair respective separation chamber of device is connected to heating room by external circulation line, and circulating pump is provided on circulation line, and VI effect is steamed
Hair device separates the circulating pump inlet that indoor solution is transported to V effect evaporator through punishment in advance pump；In step c, 20%~50%
First segment discharging mother liquor is pumped into forced circulation salt discharge evaporator, the separation of forced circulation salt discharge evaporator by forced circulation charging
Room is connected to heating room by external circulation line, and forced circulation pump is provided on circulation line, completes to be concentrated by evaporation molten
Liquid is pumped into salt settling slot by forced circulation discharging.
4. one kind six imitates tube-type down-flow evaporator group, for implementing above-mentioned sextuple-effect evaporation concentration technology, including I effect evaporator~VI
Imitate evaporator, which is characterized in that further include stoste flash vessel, the first flash-pot~the 4th flash-pot and forced circulation row
Salt evaporator, wherein IV effect evaporator, III effect evaporator, II effect evaporator, I effect evaporator, the first flash-pot~four selfs
Evaporator, which successively couples, forms first segment solution concentration circuit；Stoste flash vessel, VI effect evaporator, V effect evaporator successively couple
It forms second segment solution and circuit is concentrated；Part solution after first segment solution concentration circuit concentration is further separated into forced circulation row
Salt evaporator forms third section solution and circuit is concentrated；
The secondary steam outlet of each effect evaporator separating chamber is connected to the heating room steam inlet of lower 1st effective evaporator, VI effect evaporation
The secondary steam outlet of device is connected to direct contact water cooler；
Another secondary steam outlet of I effect evaporator separating chamber and the steam inlet of forced circulation salt discharge evaporator heating chamber connect
Logical, the secondary steam outlet of forced circulation salt discharge evaporator separating chamber is connected to the heating room steam inlet of V effect evaporator；
It is steamed respectively with II~V effect evaporator separating chamber the outlet of first order flash-pot~fourth stage flash-pot secondary steam
The steam inlet of vapor inlet connection, II~V effect evaporator separating chamber is located at the lower section of demister；
The secondary steam outlet of stoste flash vessel is connected to VI effect evaporator heating chamber's steam inlet；
It is connected with I effect of effect -1#~I-n# (n≤6) condensate water pot, the connection of I effect-n# condensate water pot on the I effect evaporator in turn
Condensate draining；Secondary steam outlet, I effect -1#~I are respectively arranged on I effect of effect -1#~I-n# (n≤6) condensate water pot
The secondary steam outlet of effect-n# (n≤6) condensate water pot is separately connected 1~N (N≤VI) and imitates evaporator heating chamber's steam inlet；
Second condensed water tank~VI effect condensate water pot, II effect have been connected respectively on the II effect evaporator~VI effect evaporator
Condensate water pot~VI effect condensate water pot is sequentially connected in series, and second condensed water tank~VI effect condensate water pot upper end offers steam and goes out
Mouthful, second condensed water tank~VI effect condensate water pot steam (vapor) outlet is communicated to II effect evaporator~VI effect evaporator correspondingly
The steam inlet of room is heated, VI effect condensate water pot connects time condensation sink.
5. a kind of six effects tube-type down-flow evaporator group according to claim 4, which is characterized in that on I~VI effect evaporator
Tops are provided with row's fixed gas system, and a small amount of air and other incoagulable gas of water vapour are mixed into timely discharge.
6. a kind of six effects tube-type down-flow evaporator group according to claim 4, which is characterized in that I~IV effect evaporator is each
From separation chamber be connected to heating room by external circulation line, circulating pump is provided on circulation line, above-mentioned each effect is evaporated
The discharge port of device separation chamber is connected to the circulating pump feed inlet of upper 1st effective evaporator by punishment in advance pump；V effect, VI effect evaporator are each
From separation chamber be connected to heating room by external circulation line, circulating pump is provided on circulation line, VI, which imitates evaporator, divides
Discharge port from room is connected to the circulating pump feed inlet of V effect evaporator by punishment in advance pump；The charging of forced circulation salt discharge evaporator
Mouthful be connected to the discharge port of the 4th flash-pot by forced circulation feed pump, the separation chamber of forced circulation salt discharge evaporator with add
Hot cell is connected to by external circulation line, and forced circulation pump is provided on circulation line, and forced circulation salt discharge evaporator goes out
Material mouth is connected to by forced circulation discharging pump with salt settling slot.
7. a kind of six effects tube-type down-flow evaporator group according to claim 4, which is characterized in that described I, which imitates evaporator, is
I effect tube type falling-film heating room split type including setting up and down and interconnected and I effect liquid collecting room are disposed side by side on I effect liquid collecting
I effect separation chamber of room side, I effect liquid collecting room and I effect separation chamber are connected by communicating pipe.
8. a kind of six effects tube-type down-flow evaporator group according to claim 4, which is characterized in that described VI, which imitates evaporator, is
It is split type, including VI effect heating room, be connected to VI effect heating room lower end VI effect liquid collecting room, VI effect liquid collecting room by connecting tube with
It is disposed in parallel in VI effect separation chamber connection of VI effect liquid collecting room side, the top of VI effect separation chamber is provided with VI effect secondary steam
The upper end of outlet, VI effect separation chamber is upper cone, and vertically arranged direct contact water cooler, VI effect two are tightly connected on upper cone
Secondary steam (vapor) outlet insertion directly contacts in water cooler, is formed between upper cone lateral wall and directly contact water cooler inner sidewall cyclic annular
Catch basin directly contacts water cooler top and offers the upper water inlet of circulation, directly contacts to offer on water cooler lower sides and follow
Water out under ring, circulation are lauched outlet ring-type catch basin, and a block baffle, baffle have been blocked in VI effect secondary steam outlet top
Separately positioned with VI effect secondary steam outlet, the annular surface area between baffle and VI effect secondary steam outlet is not less than VI effect two
The area of secondary steam (vapor) outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026350.8A CN109568999A (en) | 2019-01-11 | 2019-01-11 | Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026350.8A CN109568999A (en) | 2019-01-11 | 2019-01-11 | Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109568999A true CN109568999A (en) | 2019-04-05 |
Family
ID=65916278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910026350.8A Pending CN109568999A (en) | 2019-01-11 | 2019-01-11 | Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109568999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117923577A (en) * | 2024-03-22 | 2024-04-26 | 广东雅迪环保设备有限公司 | Secondary evaporation concentration equipment to evaporation mother liquor of landfill leachate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671041A (en) * | 2008-09-09 | 2010-03-17 | 中铝国际技术发展有限公司 | Method and device for evaporating melted alumina |
| CN103007560A (en) * | 2011-09-26 | 2013-04-03 | 沈阳铝镁设计研究院有限公司 | Configuration structure of last-effect falling-film evaporator and water cooler |
| CN209809545U (en) * | 2019-01-11 | 2019-12-20 | 江苏普格机械有限公司 | Six-effect tube type falling film evaporator set |
-
2019
- 2019-01-11 CN CN201910026350.8A patent/CN109568999A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671041A (en) * | 2008-09-09 | 2010-03-17 | 中铝国际技术发展有限公司 | Method and device for evaporating melted alumina |
| CN103007560A (en) * | 2011-09-26 | 2013-04-03 | 沈阳铝镁设计研究院有限公司 | Configuration structure of last-effect falling-film evaporator and water cooler |
| CN209809545U (en) * | 2019-01-11 | 2019-12-20 | 江苏普格机械有限公司 | Six-effect tube type falling film evaporator set |
Non-Patent Citations (2)
| Title |
|---|
| 张志斌;周风江;荆全海;路晓涛;许罡正;: "蒸发技术在氧化铝行业中的应用", 湿法冶金 * |
| 梁立强;: "提高蒸发装置产能的方法研究", 轻金属 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117923577A (en) * | 2024-03-22 | 2024-04-26 | 广东雅迪环保设备有限公司 | Secondary evaporation concentration equipment to evaporation mother liquor of landfill leachate |
| CN117923577B (en) * | 2024-03-22 | 2024-06-07 | 广东雅迪环保设备有限公司 | Secondary evaporation concentration equipment to evaporation mother liquor of landfill leachate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107032429A (en) | A kind of reverse osmosis thick water treatment system and handling process | |
| CN104003422B (en) | Disposing mother liquor method new technology | |
| CN203852856U (en) | Seven-effect and three-section evaporation indirect-condensation evaporator set for concentrated sodium aluminate solution | |
| CN107789851A (en) | A kind of triple effect vacuum vaporation system for improving copper sulphate evaporation efficiency | |
| WO2021213552A1 (en) | Multi-column differential pressure energy-saving anhydrous alcohol distillation system and anhydrous alcohol energy-saving production method | |
| CN109432808A (en) | Energy-saving and environment-friendly DDGS waste heat vapo(u)rization system | |
| CN116282282A (en) | MVR evaporation system for wheat starch process wastewater | |
| CN209809545U (en) | Six-effect tube type falling film evaporator set | |
| CN105771304A (en) | Double-effect countercurrent evaporation crystallization system for monosodium glutamate and working process thereof | |
| CN109568999A (en) | Seed precipitation solution sextuple-effect evaporation concentration technology and six effect tube-type down-flow evaporator groups | |
| CN109568997A (en) | Seed precipitation solution seven imitates evaporating and concentrating process and seven effect tube-type down-flow evaporator groups | |
| CN106629938A (en) | Four-effect vacuum energy-saving evaporative crystallization system for high-concentration saline wastewater | |
| CN209422985U (en) | A kind of multieffect evaporator | |
| CN104524806B (en) | A kind of hexamethylenamine complete continuous crystallisation production technology and equipments | |
| CN207845410U (en) | A kind of zinc borate production wastewater treatment equipment | |
| CN208182650U (en) | Ammonium sulphate waste liquor desalting processing equipment | |
| CN111375218B (en) | Molasses concentrating device and using method and process thereof | |
| CN209333222U (en) | Energy-saving and environment-friendly DDGS waste heat vapo(u)rization system | |
| CN211198664U (en) | Skid-mounted solar seawater desalination device | |
| CN204428875U (en) | The complete continuous crystallisation production process equipment of a kind of methenamine | |
| CN207210005U (en) | A kind of reverse osmosis thick water treatment system | |
| CN2924428Y (en) | Split-range falling film evaporator | |
| CN207016797U (en) | A kind of enrichment facility of liquid glucose energy-conserving and environment-protective | |
| CN205164164U (en) | Tape unit tool vapor recompression's tertiary concentrated system of falling liquid film circulation evaporating in succession | |
| CN203816249U (en) | Delta-gluconolactoneevaporation and concentration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |