CN105600806B - Carbide slag prepares industrial sodium hydroxide reaction unit - Google Patents
Carbide slag prepares industrial sodium hydroxide reaction unit Download PDFInfo
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- CN105600806B CN105600806B CN201610139339.9A CN201610139339A CN105600806B CN 105600806 B CN105600806 B CN 105600806B CN 201610139339 A CN201610139339 A CN 201610139339A CN 105600806 B CN105600806 B CN 105600806B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
- C01D1/04—Hydroxides
Abstract
Industrial sodium hydroxide reaction unit is prepared the present invention relates to carbide slag, can effectively solve the problems, such as to improve concentration and efficiency that carbide slag generates industrial sodium hydroxide, technical scheme is, including evaporating column, first exchange reactor and the second exchange reactor, the liquid outlet of the first exchange reactor and the second exchange reactor is respectively through first circulation pipeline, second circulation pipeline is connected with the import of lye pump, the outlet of lye pump is connected through the 3rd circulating line with the evaporating column enclosure interior space above reverse osmosis membrane, reverse osmosis membrane lower section is provided with liquid outlet in housing bottom, the liquid outlet is respectively through the 4th circulating line, 5th circulating line and the first exchange reactor, the import on the second exchange reactor top is connected, the present invention possesses quantity-produced feature, realize the efficient function that carbide slag is converted into industrial sodium hydroxide solution.
Description
Technical field
The present invention relates to preparing a kind of reaction unit of industrial sodium hydroxide solution with carbide slag and utilizing the device electricity consumption
The method that rock ballast prepares industrial sodium hydroxide solution.
Background technology
Carbide slag is in the industrial residue finally given off with calcium carbide and aquatic product acetylene.At present, China produces every year
Nearly 10,000,000 tons of carbide slag (dry slag) (nearly 50,000,000 tons of the slurry of folding solid content 20%), if processing not in time, does not only take up big
The soil of amount, it is also possible to which serious harm is caused to soil environment, water environment, atmospheric environment.Typically now all it is using efficient
Sedimentation and dehydration equipment are processed carbide slag.Newer processing method is to be based on utilizing electricity on changing waste into resources basis
Rock ballast prepares industrial sodium hydroxide technology.But the technology lacks special equipment, it is low to there is reaction efficiency, obtains NaOH
The problems such as solution concentration is small.There is urgent need to improvement and innovation.
The content of the invention
For above-mentioned situation, to overcome the defect of prior art, the purpose of the present invention to be just to provide a kind of carbide slag and prepare
Industrial sodium hydroxide reaction unit, can effectively solve the problems, such as to improve concentration and efficiency that carbide slag generates industrial sodium hydroxide.
The technical scheme that the present invention is solved is that a kind of carbide slag prepares industrial sodium hydroxide reaction unit, including evaporating column,
First exchange reactor and the second exchange reactor, the first exchange reactor and the second exchange reactor structure are identical, and the two is equal
Including housing, housing is hollow structure, and housing bottom is provided with liquid outlet, and filter cloth is provided with liquid outlet, and filter cloth top is in shell
Agitator is provided with vivo, and housing upper is set and is respectively arranged with charge door and filler, and the first exchange reactor and second is handed over
The liquid outlet for changing reactor is connected through first circulation pipeline, second circulation pipeline with the import of lye pump respectively, and evaporating column includes
Housing, housing is hollow structure, and bottom is provided with horizontal reverse osmosis membrane in housing, and reverse osmosis membrane top is on the side wall of housing
Alkali lye liquid outlet is provided with, the outlet of lye pump is through the evaporating column enclosure interior space above the 3rd circulating line and reverse osmosis membrane
It is connected, reverse osmosis membrane lower section is provided with liquid outlet in housing bottom, the liquid outlet is respectively through the 4th circulating line, the 5th circulation
Pipeline is connected with the import of the first exchange reactor, the second exchange reactor top, and the first exchange reactor and second exchanges anti-
Answer the charge door of device, filler, first circulation pipeline, second circulation pipeline, the 4th circulating line, be all provided with the 5th circulating line
It is equipped with the valve of its conducting of control and cut-off.
A kind of method that carbide slag prepares industrial sodium hydroxide, comprises the following steps：
(1) consersion unit is installed
Described consersion unit includes evaporating column, the first exchange reactor and the second exchange reactor, the first exchange reaction
Device and the second exchange reactor structure are identical, and the first exchange reactor includes housing, and housing is hollow structure, and housing bottom is set
There is liquid outlet, filter cloth (3) is provided with liquid outlet, filter cloth top is provided with agitator in housing, and housing upper sets difference
Charge door and filler are provided with, the second exchange reactor includes housing, and housing is hollow structure, and housing bottom is provided with out liquid
Mouthful, filter cloth is provided with liquid outlet, filter cloth top is provided with agitator in housing, and housing upper sets to be respectively arranged with and adds
The liquid outlet of material mouth and filler, the first exchange reactor and the second exchange reactor is followed through first circulation pipeline, second respectively
Endless tube road is connected with the import of lye pump, and evaporating column includes housing, and housing is hollow structure, and bottom is provided with horizontal in housing
Reverse osmosis membrane, reverse osmosis membrane top is provided with alkali lye liquid outlet on the side wall of housing, and the outlet of lye pump is through the 3rd circulation pipe
Road is connected with the evaporating column enclosure interior space above reverse osmosis membrane, and reverse osmosis membrane lower section is provided with out liquid in housing bottom
Mouthful, the liquid outlet is through the 4th circulating line, the 5th circulating line and the first exchange reactor, the second exchange reactor top respectively
Import be connected, the charge door of the first exchange reactor and the second exchange reactor, filler, first circulation pipeline, second follow
The valve of its conducting of control and cut-off is provided with endless tube road, the 4th circulating line, the 5th circulating line, valve includes difference
It is arranged on the first exchange reactor charge door, the first valve and the second valve on filler；It is separately positioned on the second exchange anti-
Answer device charge door, the 3rd valve and the 4th valve on filler；Divide and be arranged on first circulation pipeline and second circulation pipeline
The 5th valve, the 6th valve；It is separately positioned on the 7th valve, the 8th valve on the 4th circulating line, the 5th circulating line；
It is arranged on the 9th valve on alkali lye liquid outlet；
The first described exchange reactor and the bottom of the second exchange reactor are respectively arranged with slag notch, and first exchanges anti-
Answer and be provided with the slag notch of device the tenth valve, the 11st valve is provided with the slag notch of the second exchange reactor；Described
Safety valve is provided with evaporating column；
The 3rd described circulating line is stretched into evaporating column, and the liquid outlet for stretching into one end is located at reverse osmosis membrane top, and anti-
The spacing of permeable membrane is have 2-20cm；
(2) check that being in the agitator on the agitator and the second exchange reactor of the first exchange reactor closes shape
State, lye pump is closed, the tenth valve, the 11st valve, the 5th valve, the 6th valve, the 9th valve, the 8th valve
Cut-off state is in, the 7th valve and safety valve are in the conduction state；
(3) the first valve on the first exchange reactor charge door is opened, carbide slag and sodium carbonate is added extremely in housing
The 1/2-2/3 of housing cavity capacity, is then shut off the first valve, opens the second valve on filler to the first exchange reactor
Housing in injection water, close the second valve, wherein carbide slag, sodium carbonate, water mass ratio be carbide slag:Sodium carbonate:Water=
(75-100):106:(120-600)；
(4) the 3rd valve on the second exchange reactor charge door is opened, carbide slag and sodium carbonate is added extremely in housing
The 1/2-2/3 of housing cavity capacity, is then shut off the 3rd valve；Wherein carbide slag, the mass ratio of sodium carbonate are carbide slag:Carbonic acid
Sodium=(75-100):106；
(5) agitator in the first exchange reactor is opened, is stirred 15-30 minutes, close agitator, open first circulation
The 5th valve on pipeline, starts lye pump, and the reaction solution in reactor is transported in the housing of evaporating column, simultaneously closes off the
The 7th valve on four circulating lines, opens the 8th valve on the 5th circulating line；
(6) when the liquid level in evaporating column housing exceeds the 3/4 of evaporating column height, closed safe valve；
(7) when, when liquid level did not had solid, the agitator in the second exchange reactor is started in the second exchange reactor, stir
Mix 15-30 minutes, close agitator, the 5th valve closed on first circulation pipeline opens the 6th on second circulation pipeline
Valve；
(8) the on the tenth valve and the first Bank of Communications reactor filler on first Bank of Communications's reactor on slag notch is opened
Two valves, to first reactor water filling deslagging；
(9) the 8th valve closed on the 5th circulating line, while opening the 7th valve on the 4th circulating line, treats the
After concentrate discharge in two Bank of Communications's reactors, open the 11st valve on second Bank of Communications's reactor on slag notch and second and hand over
The 4th valve on row reactor filler, to second reactor water filling deslagging；
(10) repeat step (3)-(9), and interval is sampled detection in 15 minutes by evaporating column alkali lye liquid outlet, until
The NaOH solution mass concentration of detection reaches 30-40%, closes lye pump, opens the 9th valve on evaporating column alkali lye liquid outlet
, NaOH solution is taken out, the 9th valve is closed, start the filler of the exchange reactor in lye pump, and opening now circulation,
Injection takes out the water of the quality such as NaOH solution as supplement.
Unique structure of the present invention, advantages of simple possesses quantity-produced feature, realizes and is efficiently converted into carbide slag
The function of industrial sodium hydroxide solution, easy to operate, long lifespan is easy to use, and effect is good, is to be converted into high pollution thing carbide slag
The equipment of industrial sodium hydroxide and technologic innovation, had both greatly reduced pollution effect of the carbide slag to environment, generated again
Valuable industrial foundation raw material, there is good social and economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation of reaction unit of the present invention.
Specific embodiment
Specific embodiment of the invention is described in further detail below in conjunction with accompanying drawing.
Be given by Fig. 1, the present invention includes evaporating column, the first exchange reactor and the second exchange reactor, first exchanges anti-
Answer device and the second exchange reactor structure identical, the two includes housing, and housing is hollow structure, and housing bottom is provided with out liquid
Mouthful, filter cloth is provided with liquid outlet, filter cloth top is provided with agitator in housing, and housing upper sets and is respectively arranged with charging
The liquid outlet of mouth and filler, the first exchange reactor and the second exchange reactor is followed through first circulation pipeline 10, second respectively
Endless tube road 10a is connected with the import of lye pump 19, and evaporating column includes housing 14, and housing 14 is hollow structure, and bottom sets in housing
Horizontal reverse osmosis membrane 15 is equipped with, the top of reverse osmosis membrane 15 is provided with alkali lye liquid outlet 16, lye pump 19 on the side wall of housing
Outlet be connected with the evaporating column enclosure interior space above reverse osmosis membrane through the 3rd circulating line 20, the lower section of reverse osmosis membrane 15
Housing bottom is provided with liquid outlet, the liquid outlet is exchanged through the 4th circulating line 13, the 5th circulating line 13a with first respectively
Reactor, the second exchange reactor top import be connected, the charge door of the first exchange reactor and the second exchange reactor, plus
The mouth of a river, first circulation pipeline, second circulation pipeline, the 4th circulating line, control its conducting is provided with the 5th circulating line
With the valve of cut-off.
To ensure using effect, the first described exchange reactor and the bottom of the second exchange reactor are provided with and slag tap
Mouthful, valve is provided with slag notch；
Safety valve 18 is provided with described evaporating column；
The first described exchange reactor and the housing of the second exchange reactor are hollow structure, and its top is cylinder
Body, bottom is in cone, and liquid outlet is arranged on the bottom of cone, and charge door and filler are arranged on the top of cylinder, circle
Slag notch is provided with the side of cone, valve is provided with slag notch；
The 3rd described circulating line 20 is stretched into evaporating column, and the liquid outlet for stretching into one end is located at the top of reverse osmosis membrane 15,
It is have 2-20cm with the spacing of reverse osmosis membrane；
The method that industrial sodium hydroxide is prepared using the carbide slag of above-mentioned reaction unit, is comprised the following steps：
(1) consersion unit is installed
Described consersion unit includes evaporating column, the first exchange reactor and the second exchange reactor, the first exchange reaction
Device and the second exchange reactor structure are identical, and the first exchange reactor includes housing 1, and housing is hollow structure, and housing bottom sets
Liquid outlet is equipped with, filter cloth 3 is provided with liquid outlet, the top of filter cloth 3 is provided with agitator 2 in housing, and housing upper sets and divides
Charge door 4 and filler 6 are not provided with, and the second exchange reactor includes housing 1a, and housing is hollow structure, and housing bottom is set
There is liquid outlet, filter cloth 3a is provided with liquid outlet, filter cloth 3a tops are provided with agitator 2a in housing, and housing upper sets and divides
It is not provided with charge door 4a and filler 6a, the liquid outlet of the first exchange reactor and the second exchange reactor is followed through first respectively
Endless tube road 10, second circulation pipeline 10a are connected with the import of lye pump 19, and evaporating column includes housing 14, and housing 14 is hollow knot
Structure, bottom is provided with horizontal reverse osmosis membrane 15 in housing, and the top of reverse osmosis membrane 15 is provided with alkali lye and goes out on the side wall of housing
Liquid mouthful 16, the outlet of lye pump 19 is connected through the 3rd circulating line 20 with the evaporating column enclosure interior space above reverse osmosis membrane
Logical, the lower section of reverse osmosis membrane 15 is provided with liquid outlet in housing bottom, and the liquid outlet is circulated through the 4th circulating line the 13, the 5th respectively
Pipeline 13b is connected with the import of the first exchange reactor, the second exchange reactor top, and the first exchange reactor and second is exchanged
The charge door of reactor, filler, first circulation pipeline, second circulation pipeline, the 4th circulating line, on the 5th circulating line
The valve of its conducting of control and cut-off is provided with, valve includes being separately positioned on the first exchange reactor charge door 4, filler 6
On the first valve 5 and the second valve 7；It is separately positioned on the 3rd valve on the second exchange reactor charge door 4a, filler 6a
Door 5a and the 4th valve 7a；Divide the 5th valve 11, the 6th valve being arranged on first circulation pipeline 10 and second circulation pipeline 10a
Door 11a；It is separately positioned on the 7th valve 12, the 8th valve 12a on the 4th circulating line 13, the 5th circulating line 13b；Set
The 9th valve 17 on alkali lye liquid outlet 16；
The first described exchange reactor and the bottom of the second exchange reactor are respectively arranged with slag notch 8,8a, and first hands over
Change and the tenth valve 9 is provided with the slag notch 8 of reactor, the 11st valve is provided with the slag notch 8a of the second exchange reactor
9a；Safety valve 18 is provided with described evaporating column；
The 3rd described circulating line (20) is stretched into evaporating column, and the liquid outlet for stretching into one end is located on reverse osmosis membrane (15)
Side, is have 2-20cm with the spacing of reverse osmosis membrane；
(2) check that being in the agitator 2a on the exchange reactor of agitator 2 and second of the first exchange reactor closes
State, lye pump 19 is closed, the tenth valve 9, the 11st valve 9a, the 5th valve 11, the 6th valve 11a, the 9th
Valve 17, the 8th valve 12a are in cut-off state, and the 7th valve 12 and safety valve 18 are in the conduction state；
(3) the first valve 5 on the first exchange reactor charge door 4 is opened, to addition carbide slag and sodium carbonate in housing
To the 1/2-2/3 of housing cavity capacity, the first valve 5 is then shut off, opens 7 pairs first exchanges of the second valve on filler 6
Injection water in the housing of reactor, closes the second valve, and wherein carbide slag, sodium carbonate, the mass ratio of water are carbide slag:Carbonic acid
Sodium:Water=(75-100):106:(120-600)；
(4) the 3rd valve 5a on the second exchange reactor charge door 4a is opened, to addition carbide slag and carbonic acid in housing
Sodium is then shut off the 3rd valve 5a to the 1/2-2/3 of housing cavity capacity；Wherein carbide slag, the mass ratio of sodium carbonate are calcium carbide
Slag:Sodium carbonate=(75-100):106；
(5) agitator 2 in the first exchange reactor is opened, is stirred 15-30 minutes, close agitator 2, opened first and follow
The 5th valve 11 on endless tube road, starts lye pump 19, and the reaction solution in reactor is transported in the housing of evaporating column, while
The 7th valve 12 closed on the 4th circulating line 13, opens the 8th valve 12a on the 5th circulating line 13a；
(6) when the liquid level in evaporating column housing exceeds the 3/4 of evaporating column height, closed safe valve 18；
(7) when in the second exchange reactor when liquid level did not had solid, start the second exchange reactor in agitator 2a,
Stirring 15-30 minutes, closes agitator 2a, and the 5th valve 11 closed on first circulation pipeline is opened on second circulation pipeline
The 6th valve 11a；
(8) open on the tenth valve 9 and the first Bank of Communications reactor filler 6 on first Bank of Communications's reactor on slag notch 8
The second valve 7, to first reactor water filling deslagging；
(9) the 8th valve 12a closed on the 5th circulating line 13a, while opening the 7th on the 4th circulating line 13
Valve 12, after after the concentrate discharge in second Bank of Communications's reactor, opens the tenth on second Bank of Communications's reactor on slag notch 8a
The 4th valve 7a on one valve 9a and the second Bank of Communications reactor filler 6a, to second reactor water filling deslagging；
(10) repeat step 3-9, and interval is sampled detection, Zhi Daojian in 15 minutes by evaporating column alkali lye liquid outlet 16
The NaOH solution mass concentration of survey reaches 30-40%, closes lye pump 19, opens the 9th valve on evaporating column alkali lye liquid outlet 16
Door 17, take out NaOH solution, close the 9th valve 17, start lye pump, and open now circulate in exchange reactor plus
The mouth of a river, injection takes out the water of the quality such as NaOH solution as supplement.
By above-mentioned it should be apparent that structure novel and unique of the present invention, advantages of simple, possess and reduced by chemically reacting
Various functions such as the calcium carbide quantity of slag, generation industrial production raw material, realize the minimizing of the solid waste to polluting environment and change into
The target of important industrial resources.Easy to operate, long lifespan is easy to use, and effect is good, is carbide slag resource process device and work
Innovation in skill, the waste residue of generation is mainly calcium carbonate, has fewer environmental impacts, and can be used for the elimination of carbide slag, industrial hydrogen-oxygen
Change the aspects such as the production of sodium, may also pass through improvement for other chemical process, there is good social and economic benefit.And
Through experiment obtain it is same or like as test effect：
Applicant with two methods prepared using carbide slag the production of industrial sodium hydroxide.It is a kind of be it is traditional
Batch charging method production in one container, i.e., first add and equivalent water of the present invention, then be dividedly in some parts carbide slag in a vessel
And sodium carbonate, stirring reaction filters after 30 minutes, cleans filter residue, in merging cleaning fluid and filtrate to former container, then adds second
Material, so repeatedly, until charging is completed.Another kind is produced using the inventive method and equipment, the comparing result such as institute of table 1
Show
The two methods of table 1. produce Comparative result
As it can be seen from table 1 raw materials for production and charging frequency identical in the case of, using present invention obtains two most
Prominent advantage, that is, obtain solution concentration greatly improve and manually input, labour intensity are greatly decreased, and solution concentration
Raising the competitiveness of product in market and price can be made to have overwhelming superiority.And found by further experiment, in an appearance
Solution concentration almost no longer changes after the 4th charging in batch charging production process in device, even and if being entered using the inventive method
The 6th charging of row, solution concentration can also continue to increase.Therefore, using the present invention to preparing industrial hydroxide using carbide slag
The production of sodium serves revolutionary raising effect.
Claims (5)
1. a kind of carbide slag prepares industrial sodium hydroxide reaction unit, it is characterised in that including evaporating column, the first exchange reactor
With the second exchange reactor, the first exchange reactor and the second exchange reactor structure are identical, and the two includes housing, and housing is
Hollow structure, housing bottom is provided with liquid outlet, and filter cloth is provided with liquid outlet, and filter cloth top is provided with stirring in housing
Device, housing upper sets and is respectively arranged with charge door and filler, and the first exchange reactor and the second exchange reactor go out liquid
Mouth is connected through first circulation pipeline (10), second circulation pipeline (10a) with the import of lye pump (19) respectively, and evaporating column includes shell
Body (14), housing (14) is hollow structure, and bottom is provided with horizontal reverse osmosis membrane (15), reverse osmosis membrane (15) top in housing
Alkali lye liquid outlet (16) is provided with the side wall of housing, the outlet of lye pump (19) is through the 3rd circulating line (20) and counter-infiltration
Evaporating column enclosure interior space above film is connected, and reverse osmosis membrane (15) lower section is provided with liquid outlet in housing bottom, and this goes out
Liquid mouth is respectively through on the 4th circulating line (13), the 5th circulating line (13a) and the first exchange reactor, the second exchange reactor
The import in portion is connected, charge door, filler, first circulation pipeline, second of the first exchange reactor and the second exchange reactor
The valve of its conducting of control and cut-off is provided with circulating line, the 4th circulating line, the 5th circulating line；Described the 3rd
Circulating line (20) is stretched into evaporating column, and the liquid outlet for stretching into one end is located at reverse osmosis membrane (15) top, between reverse osmosis membrane
Away from there is 2-20cm.
2. carbide slag according to claim 1 prepares industrial sodium hydroxide reaction unit, it is characterised in that described first
The bottom of exchange reactor and the second exchange reactor is provided with slag notch, and valve is provided with slag notch.
3. carbide slag according to claim 1 prepares industrial sodium hydroxide reaction unit, it is characterised in that described concentration
Safety valve (18) is provided with post.
4. carbide slag according to claim 1 prepares industrial sodium hydroxide reaction unit, it is characterised in that described first
The housing of exchange reactor and the second exchange reactor is hollow structure, and its top is cylinder, and bottom is in cone, goes out liquid
Mouth is arranged on the bottom of cone, and charge door and filler are arranged on the top of cylinder, are provided with out on the side of cone
Cinder notch, is provided with valve on slag notch.
5. the method that the carbide slag of reaction unit described in a kind of use claim 1 prepares industrial sodium hydroxide, it is characterised in that
Comprise the following steps：
(1) consersion unit is installed
Described consersion unit include evaporating column, the first exchange reactor and the second exchange reactor, the first exchange reactor and
Second exchange reactor structure is identical, and the first exchange reactor includes housing (1), and housing is hollow structure, and housing bottom is set
There is liquid outlet, filter cloth (3) is provided with liquid outlet, filter cloth (3) top is provided with agitator (2) in housing, and housing upper sets
Put and be respectively arranged with charge door (4) and filler (6), the second exchange reactor includes housing (1a), and housing is hollow structure, shell
Body bottom is provided with liquid outlet, and filter cloth (3a) is provided with liquid outlet, and filter cloth (3a) top is provided with agitator in housing
(2a), housing upper sets and is respectively arranged with charge door (4a) and filler (6a), and the first exchange reactor and second exchanges anti-
The liquid outlet of device is answered to be connected with the import of lye pump (19) through first circulation pipeline (10), second circulation pipeline (10a) respectively,
Evaporating column includes housing (14), and housing (14) is hollow structure, and bottom is provided with horizontal reverse osmosis membrane (15), reverse osmosis in housing
Permeable membrane (15) top is provided with alkali lye liquid outlet (16) on the side wall of housing, and the outlet of lye pump (19) is through the 3rd circulating line
(20) it is connected with the evaporating column enclosure interior space above reverse osmosis membrane, reverse osmosis membrane (15) lower section is provided with housing bottom
Liquid outlet, the liquid outlet is through the 4th circulating line (13), the 5th circulating line (13b) respectively and the first exchange reactor, second
The import on exchange reactor top is connected, and the charge door of the first exchange reactor and the second exchange reactor, filler, first follow
The valve of its conducting of control and cut-off is provided with endless tube road, second circulation pipeline, the 4th circulating line, the 5th circulating line
Door, valve includes being separately positioned on the first exchange reactor charge door (4), the first valve (5) and the second valve on filler (6)
Door (7)；It is separately positioned on the second exchange reactor charge door (4a), the 3rd valve (5a) and the 4th valve on filler (6a)
(7a)；Divide the 5th valve (11), the 6th valve being arranged on first circulation pipeline (10) and second circulation pipeline (10a)
(11a)；It is separately positioned on the 7th valve (12), the 8th valve on the 4th circulating line (13), the 5th circulating line (13b)
(12a)；It is arranged on the 9th valve (17) on alkali lye liquid outlet (16)；
The first described exchange reactor and the bottom of the second exchange reactor are respectively arranged with slag notch (8,8a), and first exchanges
The tenth valve (9) is provided with the slag notch (8) of reactor, the 11st is provided with the slag notch (8a) of the second exchange reactor
Valve (9a)；Safety valve (18) is provided with described evaporating column；
The 3rd described circulating line (20) is stretched into evaporating column, and the liquid outlet for stretching into one end is located at reverse osmosis membrane (15) top,
There is 2-20cm with the spacing of reverse osmosis membrane；
(2) check that being in the agitator (2a) on the agitator (2) and the second exchange reactor of the first exchange reactor closes
State, lye pump (19) is closed, the tenth valve (9), the 11st valve (9a), the 5th valve (11), the 6th valve
(11a), the 9th valve (17), the 8th valve (12a) are in cut-off state, and the 7th valve (12) and safety valve (18) are in leading
Logical state；
(3) the first valve (5) on the first exchange reactor charge door (4) is opened, to addition carbide slag and sodium carbonate in housing
To the 1/2-2/3 of housing cavity capacity, the first valve (5) is then shut off, open the second valve (7) on filler (6) to the
Injection water in the housing of one exchange reactor, closes the second valve, and wherein carbide slag, sodium carbonate, the mass ratio of water are carbide slag:
Sodium carbonate:Water=(75-100):106:(120-600)；
(4) the 3rd valve (5a) on the second exchange reactor charge door (4a) is opened, to addition carbide slag and carbonic acid in housing
Sodium is then shut off the 3rd valve (5a) to the 1/2-2/3 of housing cavity capacity；Wherein carbide slag, the mass ratio of sodium carbonate are electricity
Rock ballast:Sodium carbonate=(75-100):106；
(5) agitator (2) in the first exchange reactor is opened, is stirred 15-30 minutes, close agitator (2), opened first and follow
The 5th valve (11) on endless tube road, starts lye pump (19), and the reaction solution in reactor is transported in the housing of evaporating column,
The 7th valve (12) on the 4th circulating line (13) is simultaneously closed off, the 8th valve on the 5th circulating line (13a) is opened
(12a)；
(6) when the liquid level in evaporating column housing exceeds the 3/4 of evaporating column height, closed safe valve (18)；
(7) when, when liquid level did not had solid, the agitator (2a) in the second exchange reactor is started in the second exchange reactor, stir
Mix 15-30 minutes, close agitator (2a), the 5th valve (11) closed on first circulation pipeline opens second circulation pipeline
On the 6th valve (11a)；
(8) the tenth valve (9) and the first exchange reactor filler (6) on the first exchange reactor on slag notch (8) are opened
On the second valve (7), to first reactor water filling deslagging；
(9) the 8th valve (12a) closed on the 5th circulating line (13a), while opening the on the 4th circulating line (13)
Seven valves (12), after the concentrate in the second exchange reactor is discharged, on the second exchange reactor of opening on slag notch (8a)
The 11st valve (9a) and the second exchange reactor filler (6a) on the 4th valve (7a), to the second exchange reactor note
Water deslagging；
(10) repeat step (3)-(9), and interval is sampled detection in 15 minutes by evaporating column alkali lye liquid outlet (16), until
The NaOH solution mass concentration of detection reaches 30-40%, closes lye pump (19), opens on evaporating column alkali lye liquid outlet (16)
9th valve (17), takes out NaOH solution, closes the 9th valve (17), starts lye pump, and open the exchange in now circulating
The filler of reactor, injection takes out the water of the quality such as NaOH solution as supplement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139339.9A CN105600806B (en) | 2016-03-10 | 2016-03-10 | Carbide slag prepares industrial sodium hydroxide reaction unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139339.9A CN105600806B (en) | 2016-03-10 | 2016-03-10 | Carbide slag prepares industrial sodium hydroxide reaction unit |
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| Publication Number | Publication Date |
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| CN105600806A CN105600806A (en) | 2016-05-25 |
| CN105600806B true CN105600806B (en) | 2017-06-06 |
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| CN201610139339.9A Expired - Fee Related CN105600806B (en) | 2016-03-10 | 2016-03-10 | Carbide slag prepares industrial sodium hydroxide reaction unit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045567A (en) * | 1989-03-11 | 1990-09-26 | 河南大学 | Improved preparation process of sodium hydroxide with causticization |
| US5205493A (en) * | 1991-12-12 | 1993-04-27 | Adler Paul E | Process for producing a carbonate composition |
| CN101092240A (en) * | 2006-06-23 | 2007-12-26 | 北京清华紫光英力化工技术有限责任公司 | New technique for preparing sodium hydroxide |
| CN101343122A (en) * | 2008-08-19 | 2009-01-14 | 贾向东 | Regeneration treatment method and device for black liquor of papermaking |
| CN205398130U (en) * | 2016-03-10 | 2016-07-27 | 河南工程学院 | Carbide slag preparation industry naoh reaction unit |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045567A (en) * | 1989-03-11 | 1990-09-26 | 河南大学 | Improved preparation process of sodium hydroxide with causticization |
| US5205493A (en) * | 1991-12-12 | 1993-04-27 | Adler Paul E | Process for producing a carbonate composition |
| CN101092240A (en) * | 2006-06-23 | 2007-12-26 | 北京清华紫光英力化工技术有限责任公司 | New technique for preparing sodium hydroxide |
| CN101343122A (en) * | 2008-08-19 | 2009-01-14 | 贾向东 | Regeneration treatment method and device for black liquor of papermaking |
| CN205398130U (en) * | 2016-03-10 | 2016-07-27 | 河南工程学院 | Carbide slag preparation industry naoh reaction unit |
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