CN105836765B - The cleaning method of carbonators in a kind of sodium bicarbonate production - Google Patents
The cleaning method of carbonators in a kind of sodium bicarbonate production Download PDFInfo
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- CN105836765B CN105836765B CN201510015012.6A CN201510015012A CN105836765B CN 105836765 B CN105836765 B CN 105836765B CN 201510015012 A CN201510015012 A CN 201510015012A CN 105836765 B CN105836765 B CN 105836765B
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Abstract
The present invention provides a kind of cleaning method of carbonators in sodium bicarbonate production, on the basis of existing cleaning, increase fine grain recycling can and fine grain recovery pump, the mother liquor containing fine grain that centrifuge is separated squeezes into thickener and carries out secondary crystallization, the fine grain content in mother liquor is reduced, is coordinated using the overflow mother liquor without fine grain after the secondary crystallization sedimentation come out from thickener and boils the cleaning process that tower process carries out carbonators；Tower pump is washed in increase, has been boiled the high-temp liquid of tower through washing tower pump, secondary alkali-feeding valve door, has been entered from tower top, carrying out circulation to carbonators washes tower, improves cleaning performance.The cleaning method that the present invention is provided, cleaning performance is good, and technological process is simple, technological transformation investment is small, takes up an area face kind and saves, easy to operate, running water is not injected additionally, production cost is saved, yield is improved, solves in product equilibrium problem, avoid wasting, and the environmental issue in existing process is solved, the influence of NaHCO3 crystallizations is eliminated, the usage cycles of carbonators are accordingly extended.
Description
Technical field
The present invention relates to a kind of cleaning method of carbonators, especially a kind of carbonators being used in production process of sodium bicarbonate
Cleaning method.
Background technology
In production process of sodium bicarbonate, carbonators, due to being scabbed in tower, can block liquid and gas after using some cycles
Passage, causes the deterioration of crystalline quality, can not normal operating when serious.At this time, it may be necessary to be cleaned to carbonators, traditional handicraft
General added water using alkali lye carries out the cleaning of carbonators.Its technique is：The carbonators of operation is increased into turnover alkali flow to be put
Change, solid-to-liquid ratio stops tower after being less than 5% (centrifuge cisco unity malfunction), added water from bottom of towe into carbonators 5~10t, then lead to
Enter steam progress heating and boil tower.After cleaning terminates, tower liquid will be boiled in carbonators and is discharged into mother liquor pond.By existing traditional handicraft stream
Journey, current I cleaned a carbonators every 8 hours at company in turn.
This traditional handicraft has the disadvantage that：
1., Mao Yi unbalance in product, not environmentally, is wasted.Because needing at least to supplement into system under 15 tons of normal temperature daily
Running water carries out boiling tower, and production cost is big, and causes in production process of sodium bicarbonate in product surplus, causes system to swell and is difficult to locate
The 15 cubes of mother liquors put, environmental issue can be caused while emitting and overflowing, and 15 cubes of mother liquors are worth about 3500 yuan, waste huge.
2. it is poor to boil tower effect.Although needing the carbonators of cleaning to increase turnover alkali number to be replaced crystallization inside tower,
But substantial amounts of NaHCO is still had inside tower3Crystallization；And alkali lye drops successively from top to bottom without thorough carbonization total alkali content
Low, tower top concentration is finished product alkali lye, and concentration about 80tt, bottom of towe is mother liquor, concentration 55tt.Substantial amounts of NaHCO3Crystallize and higher
Mean concentration, reduces the solvability to being scabbed in tower, influences the cleaning performance of carbonators.
Due to there is disadvantages mentioned above, the cleaning that this utilization alkali lye adds water needs improvement badly.
The content of the invention
Present invention is primarily aimed at solve the above problems not add water additionally but female using overflow there is provided a kind of with not enough
The method that liquid cleans carbonators.
To achieve the above object, the technical scheme is that：
A kind of cleaning method of carbonators in sodium bicarbonate production, methods described includes：
The carbonators of step 1. operation increases turnover alkali flow and enters line replacement, and solid-to-liquid ratio, which reaches, stops tower after setting value, now
Centrifuge stops normal work；
Carbonators to be cleaned is emptied to mother liquor pond by step 2.；
Step 3. opens centrifuge, and carbonators goes out mother liquor that alkali lye enters after thickener, stiff with solidliquid mixture state
Separation of solid and liquid is carried out into centrifuge；
What step 4. centrifuge was separated squeezes into thickener again containing crystalline mother solution, carries out secondary crystallization sedimentation；
Step 5. thickener clear liquid overflow, overflow mother liquor enters mother liquor tank；
Overflow mother liquor in step 6. mother liquor tank squeezes into carbonators to be cleaned, tower through secondary alkali-feeding valve with the first mother liquor pump
Liquid level stops plus overflow mother liquor when reaching predetermined value, and being passed through steam in carbonators boils tower；
Step 7. is boiled after tower terminates, and tower steam is boiled in closing, and tower liquid will be boiled in carbonators and is discharged into mother liquor pond；
Step 8. washing and cleaning operation terminates, and carbonators beats tower and is transferred to alkaline, after the stipulated time, cleans next carbonators, according to
Secondary circulation is carried out.
It is not extra to add water in whole cleaning process, but using the overflow mother liquor as tower liquid is washed, solve existing
Have in conventional cleaning process product is unbalance, Mao Yi, not environmentally the problems such as, while using water wisely, is that enterprise saves fund.
Further, wash in pumping unit to be additionally provided with and wash tower pump, it is described because in method, closing is boiled after tower steam, and unlatching is washed
Tower pump, the tower liquid that boils of high temperature washes tower pump, secondary alkali-feeding valve into carbonization column overhead from bottom of towe described in, carries out circulation and washes tower, with
Improve the service efficiency for boiling tower liquid and improve cleaning performance.
It is preferred that, described circulate washed the time of tower for 30 minutes.
Further, be discharged into mother liquor pond boils tower liquid containing crystallization, is pumped through the second mother liquor toward choline pot choline, boils tower liquid
Can still be used for choline, improves output.
Further, in addition to fine grain recycling can and fine grain recovery pump, described in the step 4 containing crystalline mother solution through institute
State after fine grain recycling can, thickener is squeezed into by the fine grain recovery pump, secondary crystallization sedimentation is carried out, to reduce the fine grain in mother liquor
Content.
Further, the temperature of the steam is：140 DEG C to 160 DEG C, pressure is：0.5MPA.
Further, the first mother liquor pump discharge pipeline and wash to enter tower tube line by mother liquor between tower pump discharge pipeline and connect
Connect, the mother liquor enters on tower tube line close to the first mother liquor pump side provided with valve, and the overflow mother liquor is through the valve and passes through
The secondary alkali-feeding valve enters the carbonators from tower top behind the door and carries out washing tower.Set up the mother liquor and enter tower tube line and by valve
Control, and valve is positioned close to the first mother liquor pump side, new while washing tower function realizing, it is ensured that original to send choline
Enter the function of choline pot choline with mother liquor.
Further, in the step 1, solid content is 40% in the mother liquor after the stiff.
Further, in the step 5, the overflow mother liquor enters the mother liquor tank by potential difference.Without newly added equipment,
The overflow of the overflow mother liquor can be achieved and process is collected, the manufacturing cost during reduction technological transformation.
Further, the setting value of the solid-to-liquid ratio described in the step 1 is 5%.
Further, the predetermined value of the tower liquid level described in the step 6 is 2/3rds of whole tower liquid level.
Further, in the step 7, it is passed through after steam heating, carbonators is reached that column bottom temperature is more than 130 DEG C,
Tower top temperature is more than 100 DEG C of states, and maintains this shape after 1 hour, turns off and boils tower steam.So that the crystallization in carbonators is abundant
Dissolving, and the ability that mother liquor absorbs crystallization can be improved, column efficiency is washed in raising.
In summary, the cleaning method of carbonators during a kind of sodium bicarbonate provided by the present invention is produced, without extra injection
Running water, need to only utilize the overflow mother liquor cooperation for being free of fine grain after secondary crystallization to boil tower process can complete cleaning process, work
Skill flow is simple, saves production cost, when carrying out workflow reengineering on original Process ba- sis, it is only necessary to increase fine grain recycling can, thin
Brilliant recovery pump, wash tower pump, and the first mother liquor pump and the pipeline and valve washed between tower pump discharge, overflow mother liquor is flowed into by potential difference
Mother liquor tank, without increasing oil (gas) filling device newly again, investment for trnasforming urban land is small, small accommodation area；In cleaning process by increase fine grain recycling can and
Fine grain recovery pump, the mother liquor containing compared with fine crystallization after centrifuge is separated squeezes into thickener and carries out secondary crystallization again, to reduce
Fine grain content in mother liquor, goes to wash tower using the overflow mother liquor without fine grain, without supplementing running water, saves production cost, and solution
Determine in product equilibrium problem, while solving the environmental issue of overflow and avoiding wasting, while boiling tower liquid is also used for choline, improved
Yield；Using the overflow mother liquor after secondary crystallization as tower liquid is washed, wash without fine grain in tower liquid, solvability is improved, cleaning effect
Fruit is relatively preferable, and the usage cycles of carbonators are also extended accordingly, and can save and boil tower steam；Washed using overflow mother liquor
Tower, absorbs NaHCO3Crystallization, the tower liquid that boils after cleaning terminates is sent to choline pot choline again, can improve the yield of sodium bicarbonate；Increase
Tower pump is washed, makes to boil tower liquid and plays circulation carbonators is rinsed, cleaning performance is improved；First mother liquor pump discharge pipeline is with washing tower pump
Enter tower tube line by mother liquor between outlet line to connect, and enter and be provided with tower tube line in the mother liquor close to the first mother liquor pump side
Valve, makes the overflow mother liquor through the valve and enters the carbonators from tower top behind the door through the secondary alkali-feeding valve and carry out
Tower is washed, it is new while washing tower function realizing, it is ensured that the work(for entering choline pot choline containing crystalline mother solution is sent in original production technology
With；Tower is boiled using high-temperature steam, and keeps temperature in tower, crystallization inside tower can be made fully to dissolve, it is possible to mother liquor absorption is improved
The ability of crystallization, improves cleaning performance.
Brief description of the drawings：
Fig. 1：The flow chart of the cleaning method of carbonators in sodium bicarbonate production；
Wherein：1- carbonators；2- mother liquors pond；3- mother liquor tanks；4- fine grain recycling cans；5- fine grain recovery pumps；6- thickeners；7-
First mother liquor pump；8- the second mother liquor pumps；9- washes tower pump；10- mother liquors enter tower tube line；Bis- alkali-feeding valves of 11-, 12- centrifuges
Embodiment
Present invention process flow is described in further details below in conjunction with the accompanying drawings.
To solve shortcoming present in existing traditional carbonators cleaning process, in a kind of sodium bicarbonate production that the present invention is provided
The cleaning method of carbonators, on the basis of original production technology is not changed, increase fine grain recycling can 4, fine grain recovery pump 5 are reduced
Fine grain content in mother liquor, carries out boiling tower, without additionally introducing using the overflow mother liquor without fine grain after settling through secondary crystallization
Running water；Tower pump 9, secondary alkali-feeding valve door 11 are washed in increase, and carbonators is rinsed using the circulation of high-temperature boiling tower liquid, cleaning is improved
Effect.Specific embodiment comprises the following steps：
The carbonators 1 of step 1. operation increases turnover alkali flow and enters line replacement, and solid-to-liquid ratio stops tower after being less than setting value, now
Centrifuge 12 stops normal work.
According to knowhow, this solid-to-liquid ratio setting value is typically set to 5%.
Carbonators 1 to be cleaned is emptied to the second mother liquor of the mother liquor containing crystallization in mother liquor pond 2, mother liquor pond 2 by step 2.
Pump 8 is sent to choline enamelware pot choline use；
Step 3. centrifuge 12 opens normal work, and carbonators 1 goes out alkali lye into thickener 6, and the mother liquor after stiff is with solid
Liquid mixture state enters centrifuge 12 and carries out separation of solid and liquid.Mother liquor wherein after stiff be solid-liquid mix chemical combination in solid content be
40%.
What step 4. centrifuge 12 was separated squeezes into thickener 6 again containing crystalline mother solution, carries out secondary crystallization sedimentation.
To realize more preferable secondary crystallization infall process, existing process is improved, increase fine grain recycling can 4 and fine grain
Recovery pump 5, contains crystalline mother solution after fine grain recycling can 4 from what centrifuge 12 was separated, thickener is squeezed into by fine grain recovery pump 5
6, carry out the fine grain content in secondary crystallization sedimentation, reduction mother liquor.
The clear liquid overflow of step 5. thickener 6, overflow mother liquor enters mother liquor tank 3.
The position of mother liquor tank 3 is less than thickener 6, and overflow mother liquor can enter mother liquor tank 3 by potential difference, therefore need not newly establish
It is standby, you can to realize overflow and collect process, the improvement cost in reduction technical process.
Fine grain is free of in the overflow mother liquor for now entering mother liquor tank 3, by the cleaning process for carbonators 1.It is female in overflow
Liquid enters before mother liquor tank 3, and the choline mother liquor of the collection in mother liquor tank 3 in normal production is all sent to through the first mother liquor pump 7
Choline pot choline, it is to avoid overflow mother liquor and the choline mother liquor generation mixed flow produced in normal production, to improve cleaning efficiency.
Overflow mother liquor in step 6. mother liquor tank 3 squeezes into carbonization to be cleaned with the first mother liquor pump 7 through secondary alkali-feeding valve 11
Tower 1, tower liquid level stops plus mother liquor when reaching predetermined value, and it is 140 DEG C to 160 DEG C that temperature is passed through in carbonators, and pressure is：0.5MPA
Steam, improve tower in temperature, progress boil tower process.
When overflow mother liquor is squeezed into carbonators 1, setting can be needed according to output and site technique by squeezing into the amount of mother liquor
Predetermined value, reaches that predetermined value can stop squeezing into overflow mother liquor.Determined through many experiments, in the present embodiment, when squeezing into overflow
During mother liquor, tower liquid level stops plus mother liquor when reaching 2/3rds.
Step 7. is boiled after tower terminates, and tower steam is boiled in closing, and tower liquid will be boiled in carbonators 1 and is discharged into mother liquor pond 2.Boiling tower liquid will be through
Second mother liquor pump 8 is sent to choline pot choline, can so make full use of and boil tower liquid, improve the yield of sodium bicarbonate.
To cause the crystallization in carbonators 1 fully to dissolve, the ability that mother liquor absorbs crystallization is improved, raising is washed column efficiency, led to
Enter after steam heating, carbonators 1 is reached that column bottom temperature is more than 130 DEG C, tower top temperature is more than 100 DEG C of states, and maintains this shape 1
After hour, turn off and boil tower steam.
That now discharges is boiled in tower liquid and does not contain crystallization, and tower liquid service efficiency is boiled to improve, and improves cleaning performance, therefore
Tower pump 9 is washed in increase in cleaning process, and closing is boiled after tower steam, tower pump 9 is washed in unlatching, and high temperature boils tower liquid from bottom of towe through washing tower pump
9th, secondary alkali-feeding valve 11 enters the tower top of carbonators 1, carries out circulation and washes tower.
According to site technique, general circulation wash the tower time be for 30 minutes, also can be according to washing the feelings that scabbed in tower effect or tower
Condition, separately sets circulation and washes the tower time.
Be discharged into mother liquor pond boils tower liquid containing crystallization, and choline pot choline is sent to through the second mother liquor pump 8.
Boil tower liquid and include crystallization, be sent to choline pot choline, solve the environmental issue of existing traditional handicraft, and little Su can be improved
The yield beaten.
Step 8. washing and cleaning operation terminates, and 1 dozen of tower of carbonators is transferred to alkaline, after the stipulated time, cleans next carbonators, according to
Secondary circulation is carried out.
Mother liquor is sent outside using the first mother liquor pump 7 in mother liquor tank 3, in normal productive process, i.e., in alkali-making process, and choline is used
Mother liquor is sent in choline pot choline, the cleaning of carbonators 1 by the first mother liquor pump 7, and the memory storage of mother liquor tank 3 is overflow mother liquor,
Overflow mother liquor is sent to by the first mother liquor pump 7 and washes the outlet line of tower pump 9, and the carbonators 1 to be cleaned is squeezed into through secondary alkali-feeding valve 11.
First mother liquor pump 7 exports and washed between tower pump 9 is exported to enter tower tube line 10 by mother liquor and connect, and mother liquor enters tower tube line 10 close to first
The side of mother liquor pump 7 is provided with valve, and overflow mother liquor enters through the valve and from tower top into carbonators 1 after secondary alkali-feeding valve door 11
The cleaning of row carbonators.Set up mother liquor and enter tower tube line 10 and by Valve controlling, and valve is positioned close to the side of the first mother liquor pump 7,
It is new while washing tower function realizing, it is ensured that original function for sending choline mother liquor to enter choline pot choline.
Carbonators is cleaned by above-mentioned cleaning method, by the data comparison before and after implementation, this hair is further illustrated
The effect for using slime flux mother liquor wash tower of bright offer：
Table one：Conventional approach washes tower effect
| Sequence number | Tower number | First work period h after boiling | Arrange tower concentration tt |
| 1 | 1 | 17 | |
| 2 | 3 | 10 | |
| 3 | 4 | 8 | |
| 4 | 5 | 16 | |
| 5 | 6 | 10.5 | |
| 6 | 1 | 16 | |
| 7 | 3 | 8 | |
| 8 | 4 | 9 | |
| 9 | 5 | 10 | |
| 10 | 6 | 11 | |
| It is average | 11.55 | 90-100 |
Table two：The present invention boils tower effect
The table two of table one contrasts visible：
82.56tt is reduced to from 90 original -100tt 1. being washed according to method of the invention after tower and boiling tower liquid mean concentration,
Prove that thickener overflow mother liquor solvability adds water compared with alkali lye, it is ensured that cleaning performance.
2. the method according to the present invention, which is washed, extends to 17.63h the first duty cycle after tower, 11.55h is extended before relatively testing
6.1h.Extension duty cycle of carbonators first, makes to boil the reduction of the tower frequency, by existing computation of Period, cleans less 6 times within every two days,
Steam consumption is saved.
3. part HCO in tower has been decomposed during boiling tower3 -, by multiple assay, it is substantially free of inside row's tower alkali lye
NaHCO3, alleviate pipeline, the blocking of valve scabs, reduce fluctuation.
In summary, the cleaning method of carbonators during a kind of sodium bicarbonate provided by the present invention is produced, technological process is simple,
When carrying out workflow reengineering on original Process ba- sis, it is only necessary to increase fine grain recycling can 4, fine grain recovery pump 5, wash tower pump 9 and mother
Liquid enters tower tube line 10 and valve, and overflow mother liquor flows into mother liquor tank 3 by potential difference, without increasing oil (gas) filling device newly again, invests small, floor space
Save；Cleaning process is by increasing fine grain recycling can 4 and fine grain recovery pump 5, the mother contained compared with fine crystallization after centrifuge 12 is separated
Liquid squeezes into thickener 6 and carries out secondary crystallization sedimentation again, to reduce the fine grain content in mother liquor, utilizes the overflow mother liquor without fine grain
Go to wash tower, without supplementing running water, save production cost, and solve in product equilibrium problem, while solving the environmental protection of overflow
Problem simultaneously avoids wasting；Using the overflow mother liquor after secondary crystallization as tower liquid is washed, wash without fine grain in tower liquid, solvability is carried
Height, cleaning performance is relatively preferable, and the usage cycles of carbonators 1 are also extended accordingly, and can save and boil tower steam；Utilize overflow
Mother liquor carries out washing tower, absorbs NaHCO3Crystallization, the tower liquid that boils after cleaning terminates is sent to choline pot choline again, solves existing traditional work
Environmental issue in skill simultaneously can improve the yield of sodium bicarbonate；Tower pump 9 is washed in increase, makes to boil the circulation of tower liquid and carbonators is rinsed,
Improve cleaning performance；First mother liquor pump 7 exports and washed between tower pump 9 is exported to enter tower tube line 10 by mother liquor and connect, and close
The mother liquor of the side of first mother liquor pump 7 enters tower tube line 10 provided with valve, and overflow mother liquor is through the valve and through the secondary alkali-feeding valve
Enter the carbonators 1 from tower top after door 11 and carry out washing tower, it is new while washing tower function realizing, it is ensured that original to send choline
Enter the function of choline pot choline with mother liquor；Tower is boiled using high-temperature steam, and keeps temperature in tower for a period of time, knot in tower can be made
Brilliant fully dissolving, it is possible to improve the ability that mother liquor absorbs crystallization, improves cleaning performance.
As described above, the plan content with reference to given by accompanying drawing, can derive similar technical scheme.In every case it is not de-
From the content of technical solution of the present invention, any simple modification made according to technical spirit of the invention to above example, etc.
With change and modification, in the range of still falling within technical solution of the present invention.
Claims (12)
1. a kind of cleaning method of carbonators in sodium bicarbonate production, methods described includes：
The carbonators of step 1. operation increases turnover alkali flow and enters line replacement, and solid-to-liquid ratio, which reaches, stops tower after setting value, now centrifuge
Machine stops normal work；
Carbonators to be cleaned is emptied to mother liquor pond by step 2.；
Step 3. opens centrifuge, and carbonators is gone out the mother liquor that alkali lye enters after thickener, stiff and entered with solidliquid mixture state
Centrifuge carries out separation of solid and liquid；
What step 4. centrifuge was separated squeezes into thickener again containing crystalline mother solution, carries out secondary crystallization sedimentation；
Step 5. thickener clear liquid overflow, overflow mother liquor enters mother liquor tank；
Overflow mother liquor in step 6. mother liquor tank squeezes into carbonators to be cleaned, tower liquid level through secondary alkali-feeding valve with the first mother liquor pump
Stop plus overflow mother liquor when reaching predetermined value, being passed through steam in carbonators boils tower；
Step 7. is boiled after tower terminates, and tower steam is boiled in closing, and tower liquid will be boiled in carbonators and is discharged into mother liquor pond；
Step 8. washing and cleaning operation terminates, and carbonators beats tower and is transferred to alkaline, after the stipulated time, cleans next carbonators, follows successively
Ring is carried out.
2. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：It is additionally provided with and washes tower
In pump, methods described, closing is boiled after tower steam, and tower pump is washed in unlatching, high temperature boil tower liquid from bottom of towe washed described in tower pump, it is secondary enter
Alkali valve enters carbonization column overhead, carries out circulation and washes tower.
3. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 2, it is characterised in that：The circulation is washed
The time of tower is 30 minutes.
4. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：It is discharged into mother liquor pond
Boil tower liquid containing crystallization, through the second mother liquor pump toward choline pot choline.
5. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：Also include fine grain
The crystalline mother solution that contains in recycling can and fine grain recovery pump, the step 4 is returned after the fine grain recycling can by the fine grain
Receive pump and squeeze into thickener, carry out secondary crystallization sedimentation.
6. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：The steam
Temperature is 140 DEG C to 160 DEG C, and pressure is：0.5MPA.
7. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 2, it is characterised in that：Described first is female
Liquid pump enters the connection of tower tube line between exporting and washing tower pump discharge by mother liquor, and the mother liquor enters female close to described first on tower tube line
Liquid pump side is provided with valve, and the overflow mother liquor through the valve and enters the carbon from tower top behind the door through the secondary alkali-feeding valve
Change tower and carry out washing tower.
8. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：The step 1
In, solid content is 40% in the mother liquor after the stiff.
9. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：In the step
In 5, the overflow mother liquor enters the mother liquor tank by potential difference.
10. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：In the step
In rapid 1, the setting value of the solid-to-liquid ratio is 5%.
11. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：In the step
The predetermined value of tower liquid level described in rapid 6 is 2/3rds of whole tower liquid level.
12. the cleaning method of carbonators in a kind of sodium bicarbonate production as claimed in claim 1, it is characterised in that：In the step
In rapid 7, it is passed through after steam heating, carbonators is reached that column bottom temperature is more than 130 DEG C, tower top temperature is more than 100 DEG C of states, and ties up
This state is held after 1 hour, turns off and boils tower steam.
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| CN112777613B (en) * | 2021-01-29 | 2023-06-06 | 山东海天生物化工有限公司 | Technological method for improving crystallization granularity of carbonization reaction materials in carbonization tower in sodium carbonate production |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2893833A (en) * | 1955-07-26 | 1959-07-07 | Diamond Alkali Co | Evolving carbon dioxide under pressure for use in the ammonia-soda process |
| CN1486930A (en) * | 2003-08-02 | 2004-04-07 | 秦付胜 | Clincker eliminating method for carbonizer in ammonium bicarbonate production |
| CN102432041A (en) * | 2011-09-19 | 2012-05-02 | 四川和邦股份有限公司 | Carbonization cleaning process of carbonizer for producing heavy soda ash |
| CN102935438A (en) * | 2012-10-16 | 2013-02-20 | 河南骏化发展股份有限公司 | Cleaning system and method for alkali-associated carbonation tower |
| CN103435075A (en) * | 2013-08-20 | 2013-12-11 | 湖北双环科技股份有限公司 | Water washing method for carbonization tower and device thereof |
-
2015
- 2015-01-13 CN CN201510015012.6A patent/CN105836765B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2893833A (en) * | 1955-07-26 | 1959-07-07 | Diamond Alkali Co | Evolving carbon dioxide under pressure for use in the ammonia-soda process |
| CN1486930A (en) * | 2003-08-02 | 2004-04-07 | 秦付胜 | Clincker eliminating method for carbonizer in ammonium bicarbonate production |
| CN102432041A (en) * | 2011-09-19 | 2012-05-02 | 四川和邦股份有限公司 | Carbonization cleaning process of carbonizer for producing heavy soda ash |
| CN102935438A (en) * | 2012-10-16 | 2013-02-20 | 河南骏化发展股份有限公司 | Cleaning system and method for alkali-associated carbonation tower |
| CN103435075A (en) * | 2013-08-20 | 2013-12-11 | 湖北双环科技股份有限公司 | Water washing method for carbonization tower and device thereof |
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