CN107875990A - A kind of continuous alkaline cleaner and technique - Google Patents
A kind of continuous alkaline cleaner and technique Download PDFInfo
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- CN107875990A CN107875990A CN201711038987.6A CN201711038987A CN107875990A CN 107875990 A CN107875990 A CN 107875990A CN 201711038987 A CN201711038987 A CN 201711038987A CN 107875990 A CN107875990 A CN 107875990A
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- alkali cleaning
- alkali
- thick ester
- splitter
- kettle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention discloses a kind of continuous alkaline cleaner and technique, and preparing alkali kettle, alkali lye surge tank, alkali cleaning static mixer, alkali cleaning reactor, alkali cleaning centre kettle, alkali cleaning centrifuge, washing lotion receiving tank, thick ester receiving tank, alkali cleaning coalescence phase-splitter, thick ester surge tank are provided with device；At the top of preparing alkali kettle bottom connection alkali lye surge tank；Alkali lye buffers pot bottom and connects alkali cleaning static mixer through alkali lye feed pump；Alkali cleaning static mixer connects alkali cleaning reactor head；Alkali cleaning reactor bottom connects kettle top among alkali cleaning through alkali cleaning circulating pump；Connection alkali cleaning centrifuge in bottom portion among alkali cleaning；Alkali cleaning centrifuge connects washing lotion receiving tank and thick ester receiving tank；Thick ester receiving tank is through the connection alkali cleaning coalescence phase-splitter lower end connection of thick ester delivery pump；Alkali cleaning coalescence phase-splitter connects thick ester surge tank；Brine waste surge tank connection alkali cleaning coalescence phase-splitter.Production process of the present invention is continuous, and utilization rate of equipment and installations is high, and production capacity is big, saves the energy, and production efficiency is high, and personnel labor intensity is low.
Description
Technical field
The invention belongs to the synthesis technique of continuous production processes, more particularly to for a kind of continuous alkaline cleaner and technique.
Background technology
Alkali cleaning reaction essence be：Na2CO3+H2SO4=Na2SO4+H2O+CO2。
Alkali cleaning reaction can all have salt generation mostly, salt out and be particularly easy to block pipeline, it is not easy to realize continuous operation, work
The characteristics of industry production is usually what is carried out in batch reactor, and interval alkali cleaning is reacted is ability after the completion of an only upper procedure
Can enter next process, can not continuous production, not only waste the time, reduce production efficiency, and needs equipment number of units it is more,
Personnel labor intensity is big, complex operation, can not meet the needs of large-scale production.
In chemical process, the operation of reactor either during chemical unit, or chemical engineering unit operation, by it
Mode of operation can be divided into interval, continuous and semi-batch operation.
Intermittently operated refers to put into a batch materials into equipment at the beginning of operation every time, after some processing, excluded all
Product, then feed intake again.Feature is fluctuation of service.Intermittently operated production process is fairly simple, and investment cost is low；Production process
Middle map function process conditions, driving, parking are typically easier；Production chains are bigger, and the operation of product is easier,
Suitable for the reaction being technically difficult to realize using continuous operation.Such as suspension polymerisation, due to reactant physical property or
Reaction condition, industrially it is difficult to adopt continuous operation process, it is also uneconomical even if continuous operation process is realized.There is solid
In the presence of, the serialization of chemical engineering unit operation is relatively difficult, such as crushes, filters, drying is occupied with batch process procedures
It is more.According to the characteristics of batch process procedures, typically to fine chemicals such as small lot, the medicine of multi items, dyestuff, adhesives
Production, it is synthesized and compound process uses this mode of operation relatively broadly.Some chemical products are in advanced development, due to right
The understanding and method of controlling operation thereof of technological parameter and product quality rule are ripe not enough, are also usually sought using intermittent process
Look for suitable process conditions.Large-scale production process is using the less of intermittently operated.
Production system has material constantly to exchange with the external world during continuous operation, and material continuously flows into system,
And system is continuously left with product form, the material quantity into system is equal with the product volume taken out from system, if
Standby middle each point material properties will not time to time change.Therefore continuous process is mostly steady state operation.Production process is carried out continuously, if
Standby utilization rate is high, and production capacity is big, easily realizes automation mechanized operation, and technological parameter is stable, and product quality is preferably ensured.
But the investment of consecutive production process is big, higher is required to the technical merit of operating personnel.Continuous operation process is applied to skill
The ripe large-scale industrial production of art.The large production equipment of the chemical products of whole realization industrialized production, it is essentially all
Produced using continuous operation method.
The content of the invention
It is an object of the invention to overcome above-mentioned shortcoming, it is not easy what is operated continuously for alkali cleaning reaction production technology
A kind of problem, there is provided continuous alkaline cleaner.
The technical scheme is that：A kind of continuous alkaline cleaner, described device include preparing alkali kettle, alkali lye surge tank, alkali
Wash static mixer, alkali cleaning reactor, alkali cleaning centre kettle, alkali cleaning centrifuge, washing lotion receiving tank, thick ester receiving tank, alkali cleaning coalescence
Phase-splitter, thick ester surge tank, brine waste surge tank；The preparing alkali kettle bottom is connected at the top of the alkali lye surge tank；The alkali
Liquid buffers pot bottom and connects the alkali cleaning static mixer through alkali lye feed pump；The alkali cleaning static mixer connects the alkali cleaning
Reactor head；The alkali cleaning reactor bottom connects kettle top among the alkali cleaning through alkali cleaning circulating pump；Among the alkali cleaning
Bottom portion connects the alkali cleaning centrifuge；The alkali cleaning centrifuge connects the washing lotion receiving tank and thick ester receiving tank；It is described thick
Ester receiving tank connects the alkali cleaning through thick ester delivery pump and coalesces the connection of phase-splitter lower end；Described in the alkali cleaning coalescence phase-splitter connection
Thick ester surge tank；The brine waste surge tank connects the alkali cleaning coalescence phase-splitter.
Continuous alkaline cleaner as described above, the preparing alkali kettle top are connected with preparing alkali kettle splitter, preparing alkali kettle splitter
Top drain is connected with vacuum pipeline, and preparing alkali kettle splitter top is connected with desalted water feeding line, the top of preparing alkali kettle with
Alkali feeding line connects.
Continuous alkaline cleaner as described above, the alkali cleaning static mixer includes alkali cleaning static mixer I and alkali cleaning is quiet
State blender II, the bottom discharge mouth of preparing alkali kettle are connected with alkali lye surge tank, and bottom discharge mouth and the alkali lye of alkali lye surge tank enter
Expect pump inlet connection, alkali lye charging pump discharge is connected with alkali cleaning static mixer I, and it is static mixed with alkali cleaning to be esterified thick ester feeding line
Clutch I connections, alkali cleaning static mixer I outlets are connected with alkali cleaning static mixer II, alkali cleaning static mixer II imports and alkali
Circulation heat exchanger outlet connection is washed, alkali cleaning static mixer II outlets are connected with alkali cleaning reactor head import.
Continuous alkaline cleaner as described above, the alkali cleaning reactor head are connected with alkali cleaning reactor splitter, alkali cleaning
It is connected at the top of reactor splitter with alkali cleaning vent trap, alkali cleaning vent trap bottom discharge mouth and alkali cleaning reactor head
Connection, the outlet at bottom of alkali cleaning reactor are connected with the import of alkali cleaning circulating pump, outlet and the alkali cleaning circulating picture-changing of alkali cleaning circulating pump
The import of hot device, the top connection of alkali cleaning reactor splitter.
Continuous alkaline cleaner as described above, the solid outlet of the alkali cleaning centrifuge are connected with alkali cleaning conveying worm,
The bottom discharge mouth of thick ester receiving tank is connected with the import of thick ester delivery pump, outlet and the alkali cleaning coalescence phase-splitter of thick ester delivery pump
Bottom charging aperture connection, the oil phase outlet on alkali cleaning coalescence phase-splitter top are connected with thick ester surge tank, under alkali cleaning coalescence phase-splitter
Portion aqueous phase outlet is connected with brine waste surge tank.
Continuous alkaline cleaner as described above, the thick ester surge tank, brine waste surge tank, washing lotion receiving tank, thick ester
Receiving tank, the drain of alkali cleaning centrifuge are connected with the gas phase import of alkali cleaning vent trap.
The present invention also provides the technique that a kind of device using the continuous alkali cleaning carries out continuous alkali cleaning.
The technical scheme is that：
The technique that continuous alkali cleaning is carried out using continuous alkaline cleaner, including step：
1) aqueous alkali of concentration needed for being prepared first in preparing alkali kettle, and be transferred to standby in alkali lye surge tank；
2) the thick ester containing acidic catalyst has been esterified, it is static in alkali cleaning with conveying the aqueous alkali come through alkali lye feed pump
After blender I mixing, mix in alkali cleaning static mixer II with the circulation fluid of alkali cleaning reactor tower reactor, reacted subsequently into alkali cleaning
Device, aqueous alkali enter with the acidic catalyst reaction generation salt in thick ester, water and gas, fixed gas through alkali cleaning reactor splitter
After one step gas-liquid separation, the safety vent after alkali cleaning vent trap cold-trap；
3) material conveys through alkali cleaning circulating pump in alkali cleaning reactor, is exchanged heat by alkali cleaning circulation heat exchanger and refrigerant or heating agent
After cooling or heating, a part of mixed material with thick ester and aqueous alkali returns to alkali cleaning reactor after mixing；It is partly into
Alkali cleaning reactor splitter absorbs its internal fixed gas, and another part is produced to kettle among alkali cleaning, the thing among alkali cleaning in kettle
Material centrifuges the salt in material, obtained thick ester is collected in thick ester receiving tank through alkali cleaning centrifuge；Thing in centrifuge
Material is cleaned with washing lotion, and the thick ester solution of obtained washing lotion is collected in washing lotion receiving tank, by washing lotion delivery pump, is delivered to
Out-of-bounds handle；
4) salt obtained is delivered to by alkali cleaning conveying worm and out-of-bounds handled, and is contained in the thick ester in thick ester receiving tank
Water and salt, it is delivered to alkali cleaning coalescence phase-splitter through thick ester delivery pump and carries out split-phase, oil phase is collected in thick ester surge tank, Ran Houjing
Thick ester transfering material pump is delivered to the processing for out-of-bounds carrying out next step；Brine waste is collected in brine waste surge tank, then through containing
Salt waste water delivery pump, which is delivered to, out-of-bounds to be handled.
As preferable technical scheme, this technique also includes 6) alkali cleaning centrifuge, thick ester receiving tank, washing lotion receiving tank, alkali
Wash coalescence phase-splitter, thick ester surge tank, the blow-down pipe of brine waste surge tank equipment and be back to alkali cleaning vent trap, pass through
Cross safety vent after trapping.
As preferable technical scheme, desalted water and alkaline material are added into preparing alkali kettle, opens the stirring of preparing alkali kettle, to
Heating agent or refrigerant are passed through in the chuck of preparing alkali kettle, according to the amount for adding alkaline material, opens the flow automatic control of desalted water, autogamy alkali
Vacuumized at the top of kettle splitter, the dust in preparing alkali kettle is eluted to preparing alkali kettle, be configured to the aqueous alkali of required concentration.
Need to vacuumize into system during with alkali, dust-proof effect can be played.Preparing alkali kettle splitter is provided with the top of preparing alkali kettle, is taken out true
Sky is from preparing alkali kettle splitter, and desalted water water inlet is also disposed at the position of the top vacuum pipeline of preparing alkali kettle splitter on the lower, this
Sample desalted water can elute solid dust, play dust-proof effect.
Alkali cleaning centrifuge can reach remove alkali cleaning it is complete after thick ester in the purpose of salt that separates out, by using alkali cleaning centrifuge
The salt that alkali cleaning is separated out after complete centrifuges, and obtains thick aqueous solution of ester, collects in thick ester receiving tank, when the salt in centrifuge is rich
After collecting to a certain extent, salt is cleaned by ethanol or other washing lotions, the thick ester remained in salt is washed, collected
In washing lotion receiving tank, the loss of thick ester is reduced, and the salt cleaned is then produced salt by alkali cleaning conveying worm.
Containing water and partial salt in thick ester in thick ester receiving tank, by coalescing phase-splitter by thick ester and brine waste point
From obtaining the hardly thick ester oil phase of saliferous and the waste water of saliferous.It can be reached by the oil phase and aqueous phase that coalesce phase-splitter split-phase
Be not in Water-In-Oil, oil-in-water situation, so as to reduce the loss of oil phase to good separating effect.
The process and device production process of the present invention is carried out continuously, and utilization rate of equipment and installations is high, and production capacity is big, Neng Goujie
The about energy, automation mechanized operation is easily realized, technological parameter is stable, and product quality is preferably ensured.Suitable for technology maturation
Large-scale industrial production.And the input amount of equipment can be reduced using the present invention, reduce fund input and human input,
The production time has been saved, has improved production efficiency, has reduced the labor intensity of personnel.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the process schematic diagram of invention.
In figure：1- sodium carbonate, 2- desalted waters, 3- preparing alkali kettles, 4- preparing alkali kettles splitter, 5- alkali lye surge tank, 6- alkali lye enter
Expect pump, 7- alkali cleaning static mixer I, 8- alkali cleaning static mixer II, 9- alkali cleanings reactor, 10- alkali cleanings circulating pump, 11- alkali cleanings
Circulation heat exchanger, 12- alkali cleaning reactors splitter, 13- alkali cleanings vent trap, kettle among 14- alkali cleanings, 15- alkali cleanings centrifuge,
16- washing lotions receiving tank, 17- washing lotions delivery pump, 18- alkali cleanings conveying worm, the thick ester receiving tanks of 19-, the thick ester delivery pumps of 20-, 21-
Alkali cleaning coalescence phase-splitter, the thick ester surge tanks of 22-, the thick ester transfering material pumps of 23-, 24- brine wastes surge tank, the conveying of 25- brine wastes
Pump.
Embodiment
As shown in figure 1, a kind of continuous alkaline cleaner, it is mixed that described device includes preparing alkali kettle 3, alkali lye surge tank 5, alkali cleaning static state
Clutch, alkali cleaning reactor 9, alkali cleaning centre kettle 14, alkali cleaning centrifuge 15, washing lotion receiving tank 16, thick ester receiving tank 19, alkali cleaning coalescence
Phase-splitter 21, thick ester surge tank 22, brine waste surge tank 24；The bottom of preparing alkali kettle 3 connects the alkali lye surge tank 5 and pushed up
Portion；The bottom of alkali lye surge tank 5 connects the alkali cleaning static mixer through alkali lye feed pump 6；The alkali cleaning static mixer
Connect the top of alkali cleaning reactor 9；The bottom of alkali cleaning reactor 9 connects kettle 14 among the alkali cleaning through alkali cleaning circulating pump 10
Top；The bottom of kettle 14 connects the alkali cleaning centrifuge 15 among the alkali cleaning；The alkali cleaning centrifuge 15 connects the washing lotion and connect
Closed cans 16 and thick ester receiving tank 19；The thick ester receiving tank 19 is connected under the alkali cleaning coalescence phase-splitter 21 through thick ester delivery pump 20
End connection；The alkali cleaning coalescence phase-splitter 21 connects the thick ester surge tank 22；The brine waste surge tank 24 connects described
Alkali cleaning coalesces phase-splitter 21.
In one embodiment of continuous alkaline cleaner, the top of preparing alkali kettle 3 is connected with preparing alkali kettle splitter 4, preparing alkali kettle
The top drain of splitter 4 is connected with vacuum pipeline, and the top of preparing alkali kettle splitter 4 is connected with desalted water feeding line, preparing alkali kettle 3
Top be connected with alkali feeding line.
In one embodiment of continuous alkaline cleaner, the alkali cleaning static mixer includes alkali cleaning static mixer I7 and alkali
Static mixer II8 is washed, the bottom discharge mouth of preparing alkali kettle 3 is connected with alkali lye surge tank 5, the bottom discharge mouth of alkali lye surge tank 5
It is connected with the import of alkali lye feed pump 6, the outlet of alkali lye feed pump 6 is connected with alkali cleaning static mixer I7, is esterified thick ester feeding line
It is connected with alkali cleaning static mixer I7, alkali cleaning static mixer I7 outlets are connected with alkali cleaning static mixer II8, and alkali cleaning is static mixed
Clutch II8 imports connect with the outlet of alkali cleaning circulation heat exchanger 11, alkali cleaning static mixer II8 outlets and the top of alkali cleaning reactor 9
Import connects.
In one embodiment of continuous alkaline cleaner, the top of alkali cleaning reactor 9 is connected with alkali cleaning reactor splitter
12, the top of alkali cleaning reactor splitter 12 is connected with alkali cleaning vent trap 13, the bottom discharge mouth of alkali cleaning vent trap 13 and
The top of alkali cleaning reactor 9 is connected, and the outlet at bottom of alkali cleaning reactor 9 is connected with the import of alkali cleaning circulating pump 10, alkali cleaning circulating pump
10 outlet is connected with the import of alkali cleaning circulation heat exchanger 11, the top of alkali cleaning reactor splitter 12.
In one embodiment of continuous alkaline cleaner, the solid outlet of the alkali cleaning centrifuge 15 is connected with alkali cleaning spiral transferring
Send machine 18, the bottom discharge mouth of thick ester receiving tank 19 is connected with the import of thick ester delivery pump 20, the outlet of thick ester delivery pump 20 with
The bottom charging aperture connection of alkali cleaning coalescence phase-splitter 21, the oil phase outlet on alkali cleaning coalescence phase-splitter 21 top connects with thick ester surge tank 22
Connect, the outlet of alkali cleaning coalescence phase-splitter 21 lower aqueous is connected with brine waste surge tank 24.
In one embodiment of continuous alkaline cleaner, the thick ester surge tank 22, brine waste surge tank 24, washing lotion receive
Tank 16, thick ester receiving tank 19, the drain of alkali cleaning centrifuge 15 are connected with the gas phase import of alkali cleaning vent trap 13.
So that alkaline material uses sodium carbonate as an example, concrete technology flow process of the invention is：It is fixed to be added first into preparing alkali kettle 3
The desalted water 2 of amount, the sodium carbonate 1 of driving conveying ton bag are delivered to preparing alkali kettle 3 and fed, and take out the anti-dust of micro-vacuum.Open preparing alkali kettle 3
Stirring.Water vapour is passed through into the chuck of preparing alkali kettle 3.According to the amount for adding sodium carbonate, the flow automatic control of desalted water is opened, is prepared
Into the aqueous sodium carbonate of saturation.Desalted water is fed from its top feed mouth of preparing alkali kettle splitter 4, from the top of preparing alkali kettle splitter
Portion vacuumizes, and can elute the dust in preparing alkali kettle to preparing alkali kettle, reduces Dust Capacity.The baiting valve of preparing alkali kettle 3 is opened, will
Saturated aqueous sodium carbonate is temporarily stored in alkali lye surge tank 5, ensures the supply of saturated aqueous sodium carbonate during continuous operation.Esterification
The complete thick ester containing sulfuric acid catalyst is through flow control system, with conveying the saturated aqueous sodium carbonate come in alkali through alkali lye feed pump 6
After washing the mixing of static mixer group I 7, mixed with the circulation fluid of the tower reactor of alkali cleaning reactor 9 in alkali cleaning static mixer II 8.So
Enter alkali cleaning reactor 9 afterwards, saturated sodium carbonate does not coagulate with sulfuric acid reaction generation sodium sulphate, water and carbon dioxide, carbon dioxide etc.
Gas is after the 12 further gas-liquid separation of alkali cleaning reactor splitter, the safety vent after the cold-trap of alkali cleaning vent trap 13.
Material conveys through alkali cleaning circulating pump 10 in alkali cleaning reactor 9, most of cold by alkali cleaning circulation heat exchanger 11 and recirculated water heat exchange
But after, then alkali cleaning reactor 9 is returned to after being mixed with the mixed material of sulfuric acid and aqueous sodium carbonate；Another part is produced to alkali cleaning
Middle kettle 14, the material among alkali cleaning in kettle centrifuge the salt sodium sulphate in material, what is obtained is thick through alkali cleaning centrifuge 15
Ester is collected in thick ester receiving tank 19；Material in centrifuge is cleaned with ethanol or washing lotion, the thick ester of obtained ethanol
Solution is collected in washing lotion receiving tank 16, by washing lotion delivery pump 17, is delivered to and is out-of-bounds handled.Obtained salt passes through alkali cleaning spiral
Conveyer 18, which is delivered to, out-of-bounds to be handled.Contain water and salt in thick ester in thick ester receiving tank 19, be delivered to through thick ester delivery pump 20
Alkali cleaning coalescence phase-splitter 21 carries out split-phase.Oil phase is collected in thick ester surge tank 22, is then delivered to boundary through thick ester transfering material pump 23
The outer processing for carrying out next step；Brine waste is collected in brine waste surge tank 24, then defeated through brine waste delivery pump 25
Deliver to and out-of-bounds handle.Alkali cleaning centrifuge, thick ester receiving tank, washing lotion receiving tank, alkali cleaning coalescence phase-splitter, thick ester surge tank, saliferous
The blow-down pipe of the equipment such as waste water surge tank is back to alkali cleaning vent trap, the safety vent after trapping.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
- A kind of 1. continuous alkaline cleaner, it is characterised in that：Described device includes preparing alkali kettle, alkali lye surge tank, alkali cleaning static mixing Device, alkali cleaning reactor, alkali cleaning centre kettle, alkali cleaning centrifuge, washing lotion receiving tank, thick ester receiving tank, alkali cleaning coalescence phase-splitter, thick ester Surge tank, brine waste surge tank；The preparing alkali kettle bottom is connected at the top of the alkali lye surge tank；The alkali lye buffers pot bottom The alkali cleaning static mixer is connected through alkali lye feed pump；The alkali cleaning static mixer connects the alkali cleaning reactor head； The alkali cleaning reactor bottom connects kettle top among the alkali cleaning through alkali cleaning circulating pump；Connection institute in bottom portion among the alkali cleaning State alkali cleaning centrifuge；The alkali cleaning centrifuge connects the washing lotion receiving tank and thick ester receiving tank；The thick ester receiving tank is through thick Ester delivery pump connects the alkali cleaning coalescence phase-splitter lower end connection；The alkali cleaning coalescence phase-splitter connection thick ester surge tank； The brine waste surge tank connects the alkali cleaning coalescence phase-splitter.
- 2. continuous alkaline cleaner as claimed in claim 1, it is characterised in that：Preparing alkali kettle separation is connected with the top of the preparing alkali kettle Post, preparing alkali kettle splitter top drain are connected with vacuum pipeline, and preparing alkali kettle splitter top is connected with desalted water feeding line, The top of preparing alkali kettle is connected with alkali feeding line.
- 3. continuous alkaline cleaner as claimed in claim 1, it is characterised in that：It is static that the alkali cleaning static mixer includes alkali cleaning Blender I and alkali cleaning static mixer II, the bottom discharge mouth of preparing alkali kettle are connected with alkali lye surge tank, the bottom of alkali lye surge tank Discharging opening is connected with alkali lye charging pump inlet, and alkali lye charging pump discharge is connected with alkali cleaning static mixer I, is esterified thick ester feed pipe Line is connected with alkali cleaning static mixer I, and alkali cleaning static mixer I outlets are connected with alkali cleaning static mixer II, and alkali cleaning is static mixed Clutch II imports connect with the outlet of alkali cleaning circulation heat exchanger, and alkali cleaning static mixer II outlets connect with the import of alkali cleaning reactor head Connect.
- 4. continuous alkaline cleaner as claimed in claim 1, it is characterised in that：It is anti-that the alkali cleaning reactor head is connected with alkali cleaning Device splitter is answered, is connected at the top of alkali cleaning reactor splitter with alkali cleaning vent trap, alkali cleaning vent trap bottom discharge mouth It is connected with alkali cleaning reactor head, the outlet at bottom of alkali cleaning reactor is connected with the import of alkali cleaning circulating pump, alkali cleaning circulating pump Outlet is connected with the import of alkali cleaning circulation heat exchanger, the top of alkali cleaning reactor splitter.
- 5. continuous alkaline cleaner as claimed in claim 1, it is characterised in that：The solid outlet of the alkali cleaning centrifuge is connected with Alkali cleaning conveying worm, the bottom discharge mouth of thick ester receiving tank are connected with the import of thick ester delivery pump, the outlet of thick ester delivery pump It is connected with alkali cleaning coalescence phase-splitter bottom charging aperture, the oil phase outlet on alkali cleaning coalescence phase-splitter top is connected with thick ester surge tank, The outlet of alkali cleaning coalescence phase-splitter lower aqueous is connected with brine waste surge tank.
- 6. carrying out the technique of continuous alkali cleaning using the continuous alkaline cleaner as described in any one of claim 1 to 5, its feature exists In the technique comprises the following steps：1) aqueous alkali of concentration needed for being prepared first in preparing alkali kettle, and be transferred to standby in alkali lye surge tank；2) the thick ester containing acidic catalyst has been esterified, with conveying the aqueous alkali come in alkali cleaning static mixing through alkali lye feed pump After device I mixing, mixed with the circulation fluid of alkali cleaning reactor tower reactor in alkali cleaning static mixer II, subsequently into alkali cleaning reactor, Aqueous alkali enters one with the acidic catalyst reaction generation salt in thick ester, water and gas, fixed gas through alkali cleaning reactor splitter After walking gas-liquid separation, the safety vent after alkali cleaning vent trap cold-trap；3) material conveys through alkali cleaning circulating pump in alkali cleaning reactor, is cooled down by alkali cleaning circulation heat exchanger and the heat exchange of refrigerant or heating agent Or after heating, a part of mixed material with thick ester and aqueous alkali returns to alkali cleaning reactor after mixing；It is partly into alkali cleaning Reactor splitter absorbs its internal fixed gas, and another part is produced to kettle among alkali cleaning, the material warp among alkali cleaning in kettle Alkali cleaning centrifuge, the salt in material is centrifuged, obtained thick ester is collected in thick ester receiving tank；Material in centrifuge is used Washing lotion is cleaned, and the thick ester solution of obtained washing lotion is collected in washing lotion receiving tank, by washing lotion delivery pump, is delivered to out-of-bounds Processing；4) salt obtained is delivered to by alkali cleaning conveying worm and out-of-bounds handled, the water contained in the thick ester in thick ester receiving tank and Salt, it is delivered to alkali cleaning coalescence phase-splitter through thick ester delivery pump and carries out split-phase, oil phase is collected in thick ester surge tank, then through thick ester Transfering material pump is delivered to the processing for out-of-bounds carrying out next step；Brine waste is collected in brine waste surge tank, is then given up through saliferous Water delivery pump, which is delivered to, out-of-bounds to be handled.
- 7. continuous alkali washing process as claimed in claim 7, it is characterised in that：The alkali added in preparing alkali kettle in the step 1) is Solid base or liquid base.
- 8. continuous alkali washing process as claimed in claim 7, it is characterised in that：Also include step 6) alkali cleaning centrifuge, thick ester connects Closed cans, washing lotion receiving tank, alkali cleaning coalescence phase-splitter, thick ester surge tank, the blow-down pipe of brine waste surge tank equipment return To alkali cleaning vent trap, the safety vent after trapping.
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| CN201711038987.6A CN107875990A (en) | 2017-10-30 | 2017-10-30 | A kind of continuous alkaline cleaner and technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485553A (en) * | 2019-01-21 | 2019-03-19 | 中信国安化工有限公司 | A kind of production equipment and process removing formic acid in DMMn product |
| CN110787484A (en) * | 2018-08-03 | 2020-02-14 | 广西田东兴鹏精细化学品有限公司 | Alkali washing and alkali washing wastewater treatment process for 2-ethyl anthraquinone closed-loop extraction liquid |
| CN111389324A (en) * | 2020-04-20 | 2020-07-10 | 湖北东方化工有限公司 | System and method for mixed washing and separation of nitro compounds |
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