CN102935438B - Connection alkali carbonators purging system and cleaning method - Google Patents
Connection alkali carbonators purging system and cleaning method Download PDFInfo
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- CN102935438B CN102935438B CN201210392318.XA CN201210392318A CN102935438B CN 102935438 B CN102935438 B CN 102935438B CN 201210392318 A CN201210392318 A CN 201210392318A CN 102935438 B CN102935438 B CN 102935438B
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Abstract
The invention provides a kind of connection alkali carbonators purging system and cleaning method, the cleaning in order to solve distich alkali carbonators in prior art exists poor effect, dissolve the lower problem of the ability that scabs.This purging system comprises: cleaning agent memory device, is connected respectively by the upper and lower of pipeline with the connection alkali carbonators possessing cleaning condition, for depositing the ammonia mother liquor I possessing preset temperature; Purgative gas conveying equipment, is connected with the bottom of connection alkali carbonators, for being sent to by purgative gas in connection alkali carbonators.Adopt technical scheme of the present invention, contribute to improving molten scar ability, promote cleaning performance, and extend the duty cycle of connection alkali carbonators, significantly improve system production capacity, save production cost.
Description
Technical field
The present invention relates to union soda soda manufacture field, particularly relate to a kind of connection alkali carbonators purging system and cleaning method.
Background technology
In integrated soda production operation, the heavy alkali of connection alkali carbonators is separated out and scabbed is common problem, usually need to clean scabbing, this is because state's inline alkali carbonators is use traditional Sol dimension carbonators substantially, the precipitation of its heavy alkali concentrates on cooling section, therefore the heavy alkali joining alkali carbonators cooling section scabs seriously, calcium magnesium addition simultaneously in integrated soda production liquefied ammonia mother liquor II is higher, cause joining scabbing serious and being difficult to cleaning of alkali carbonators, had a strong impact on the cycle of operation of connection alkali carbonators.
At present, most domestic united alkali-making factory adopts traditional hot ammonia mother liquor II to clean tower process, and because technical process determined, the degree of carbonisation of union soda ammonia mother liquor II is higher, and generally 110% ~ 115%, the ability that dissolving scabs is lower, and cleaning performance is not good; Part united alkali-making factory is due to after use ammonia mother liquor II normal wash, cleaning performance can not meet production normal demand, and being forced to change into washing process, water-washing process needs to use steam, adds cost, simultaneously tower body auxiliary valve, packing ring equivalent damage are serious, system maintenance cost improves and affects production capacity, boils tower and produces a large amount of Xi Tashui, system supply difficulty, mother liquor is difficult to balance, environmental protection pressure weight.
In the prior art, there is poor effect in the cleaning of distich alkali carbonators, dissolves the lower problem of the ability that scabs, for this problem, not yet proposes effective solution at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of connection alkali carbonators purging system and cleaning method, there is poor effect, dissolves the lower problem of the ability that scabs with the cleaning solving distich alkali carbonators in prior art.
To achieve these goals, according to an aspect of the present invention, a kind of connection alkali carbonators purging system is provided.
Alkali carbonators purging system of the present invention comprises: cleaning agent memory device, is connected respectively by the upper and lower of pipeline with the connection alkali carbonators possessing cleaning condition, for depositing the ammonia mother liquor I possessing preset temperature; Purgative gas conveying equipment, is connected with the bottom of connection alkali carbonators, for being sent to by purgative gas in connection alkali carbonators.
Further, purging system also comprises: cleaning agent delivery pump, be arranged on cleaning agent memory device be connected with the top of connection alkali carbonators between pipeline on, for the ammonia mother liquor I in cleaning agent memory device being sent in connection alkali carbonators; First liquid feed valve and the second liquid feed valve, be successively set on cleaning agent delivery pump be connected with the top of connection alkali carbonators between pipeline on.
Further, purging system also comprises: Reconstruction of End Gas Separator, and its entrance side upper end is connected by the tail gas outlet of pipeline with connection alkali carbonators, and the outlet side lower end of Reconstruction of End Gas Separator is connected with cleaning agent memory device by pipeline.
Further, purging system also comprises: turned letter equipment, containing agitating device, turned letter equipment is connected by the bottom of pipeline with connection alkali carbonators, for deposit the alkaline hydraulic pressure in connection alkali carbonators is entered to join the cleaning tower of alkali carbonators place tower group after remaining alkaline liquid.
According to a further aspect in the invention, a kind of connection alkali carbonators cleaning method is provided.
Alkali carbonators cleaning method of the present invention comprises: the ammonia mother liquor I possessing preset temperature is sent into according to the amount of the ammonia mother liquor I of setting the top possessing the connection alkali carbonators of cleaning condition; Being sent into according to the amount of the purgative gas of setting by purgative gas possesses in the connection alkali carbonators of cleaning condition; In the scavenging period preset, ammonia mother liquor I has from top to bottom flowed the cleaning of distich alkali carbonators under the bubbling of purgative gas in connection alkali carbonators.
Further, by the ammonia mother liquor I possessing preset temperature according to the amount of the ammonia mother liquor I of setting send into possess the top of the connection alkali carbonators of cleaning condition before also comprise: by connection alkali liquor I by inhaling ammonia equipment and inhale ammonia and obtaining the ammonia mother liquor I possessing preset temperature after heating up.
Further, by the ammonia mother liquor I possessing preset temperature according to the amount of the ammonia mother liquor I of setting send into possess the top of the connection alkali carbonators of cleaning condition before also comprise: the connection alkali carbonators emptying acquisition of alkaline liquid be in the connection alkali carbonators of alkaline state being possessed cleaning condition.
Further, comprise emptying for the alkaline liquid be in the connection alkali carbonators of alkaline state: the alkaline hydraulic pressure be in the connection alkali carbonators of alkaline state is entered in the complete and emptying cleaning tower of the cleaning of this connection alkali carbonators place tower group, until two pressure towers balances; The residue alkaline liquid be in the connection alkali carbonators of alkaline state is entered in storage device.
Further, cleaning method also comprises: adopt Reconstruction of End Gas Separator that the tail gas that connection alkali carbonators is discharged is carried out gas-liquid separation.
Further, the temperature possessing the ammonia mother liquor I of preset temperature is 40 DEG C ~ 52 DEG C.
According to technical scheme of the present invention, by arranging cleaning agent memory device, and enter connection alkali carbonators wash cycles using hot ammonia mother liquor I as cleaning agent and scab, substantially increase molten scar ability, improve cleaning performance, and extend the duty cycle of connection alkali carbonators, significantly improve system production capacity, save production cost.
Accompanying drawing explanation
Figure of description is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the connection alkali carbonators purging system according to the embodiment of the present invention; And
Fig. 2 is the flow chart of the key step of connection alkali carbonators cleaning method according to the embodiment of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The combination of connection alkali carbonators can set one group, five tower, one group, four tower or one group, three towers according to the need of production of Lian Jian manufacturer, existing for one group, four tower, and this group connection alkali carbonators alkaline cycle is 48 hours, the cleaning frequency is 16 hours.
Fig. 1 is the structural representation of the connection alkali carbonators purging system according to the embodiment of the present invention.
As shown in Figure 1, alkali carbonators purging system of the present invention comprises:
Cleaning agent memory device 10, is connected respectively by the upper and lower of pipeline with the connection alkali carbonators 20 possessing cleaning condition, for depositing the ammonia mother liquor I possessing preset temperature.In the present embodiment, cleaning agent memory device 10 can be deposited connection alkali liquor I and inhale ammonia and the ammonia mother liquor I possessing preset temperature obtained after intensification by inhaling ammonia equipment, also can deposit the cleaning liquid after the cleaning of discharging from connection alkali carbonators 20.
Preferably, the preset temperature of ammonia mother liquor I is 40 DEG C ~ 52 DEG C.The ammonia mother liquor I degree of carbonisation of this temperature range is low, and molten scar ability is strong, calcium ions and magnesium ions content is low, therefore greatly improves cleaning performance.
Cleaning agent delivery pump 11, be arranged on cleaning agent memory device 10 be connected with the top of connection alkali carbonators 20 between pipeline on, for the ammonia mother liquor I in cleaning agent memory device 10 being sent in connection alkali carbonators 20.
First liquid feed valve 12 and the second liquid feed valve 13, be successively set on cleaning agent delivery pump 11 be connected with the top of connection alkali carbonators 20 between pipeline on.In the present embodiment, the alkaline liquid of connection alkali carbonators 20 is ammonia mother liquor II, cleaning agent is ammonia mother liquor I, it is that ammonia mother liquor II in connection alkali carbonators 20 in order to avoid being in alkaline state penetrates in cleaning agent memory device 10 that the feed liquor pipeline of cleaning agent arranges bivalve, also prevent ammonia mother liquor I in cleaning agent memory device 10 from penetrating into the connection alkali carbonators 20 being in alkaline state, thus the feed liquid that effectively prevent two kinds of liquid is mixed mutually.
Purgative gas conveying equipment 30, is connected with the bottom of connection alkali carbonators 20, for being sent to by purgative gas in connection alkali carbonators 20.
Preferably, purgative gas is air, and purgative gas conveying equipment 30 is compressor.In the present embodiment, air is pumped into the first lap in connection alkali carbonators 20 by compressor.
Reconstruction of End Gas Separator 40, its entrance side upper end is connected by the tail gas outlet 21 of pipeline with connection alkali carbonators 20, and the outlet side lower end of Reconstruction of End Gas Separator 40 is connected with cleaning agent memory device 10 by pipeline.In the present embodiment, the outlet side lower end of Reconstruction of End Gas Separator 40 is also connected with alkaline liquid memory device 50 by another pipeline.Because alkali carbonators purging system of the prior art adopts the ammonia mother liquor II same with alkaline liquid phase as cleaning agent usually, the outlet of Reconstruction of End Gas Separator 40 is also only had and is connected with alkaline liquid memory device 50 by a road pipeline, and what adopt in the present embodiment is that the ammonia mother liquor I of 40 DEG C ~ 52 DEG C is as cleaning agent, therefore the road pipeline from Reconstruction of End Gas Separator 40 to cleaning agent memory device 10 is set again, the tail gas containing ammonia mother liquor II arranging connection alkali carbonators 20 discharge can avoiding being in alkaline state of this two-way pipeline penetrates in cleaning agent memory device 10, the tail gas containing ammonia mother liquor I also preventing the connection alkali carbonators 20 being in cleaning state from discharging penetrates in alkaline liquid memory device 50, thus the feed liquid that effectively prevent two kinds of liquid is mixed mutually.
Turned letter equipment 60, containing agitating device, turned letter equipment 60 is connected by the bottom of pipeline with connection alkali carbonators 20.Before the connection alkali carbonators 20 completing the alkaline cycle will being entered the cleaning frequency, need emptying for the alkaline liquid in connection alkali carbonators 20, this evacuation procedure is: first entered by the alkaline hydraulic pressure in connection alkali carbonators 20 in the complete and emptying cleaning tower of the cleaning of this connection alkali carbonators place tower group, until two pressure towers balances; Now join in alkali carbonators 20 and also have still undischarged residue alkaline liquid, owing to having partially crystallizable in residue alkaline liquid, directly entering alkaline liquid memory device 50 can cause the crystallization of alkaline liquid memory device 50 inner bottom part too much, nightstool phenomenon is caused to alkaline liquid memory device 50, therefore this residue alkaline liquid temporarily will be drained in turned letter equipment 60.Because turned letter equipment 60 is containing agitating device, the alkaline liquid in turned letter equipment 60 after stirring is sent to alkaline liquid memory device 50 by turned letter pump 61, effectively prevent the generation of alkaline liquid memory device 50 nightstool phenomenon.
First valve of falling halogen 71 and the second valve of falling halogen 72, is connected with the bottom of connection alkali carbonators 20, and is connected with turned letter equipment 60, alkaline liquid memory device 50, cleaning agent memory device 10 and two process memory devices 90 respectively by scavenging pump 80.The valve of falling halogen has the good characteristic of tightness, and what usually adopt in prior art is eccentric ball valve, because eccentric ball valve is poorly sealed, the crystallization of alkaline liquefied ammonia mother liquor II is made to be bonded on the sealing surface of eccentric ball valve, thus cause cleaning fluid or alkaline liquid to be oozed out by eccentric ball valve, cause feed liquid to be mixed mutually.The valve of falling halogen that two tightnesses are good is set, effectively prevent the phenomenon that feed liquid is mixed mutually, ensure that the normal operation of connection alkali carbonators 20.
In the present embodiment, the first valve of falling halogen 71 and the second valve of falling halogen 72 are also for being communicated with other connection alkali carbonators of connection alkali carbonators 20 place tower group.
Two process memory devices 90, are connected with scavenging pump 80 by pipeline.Because Lian Jian manufacturer arranges two processes of producing ammonium chloride usually, its raw material ammonia is mother liquor I, in order to save the cost again pumping into ammonia mother liquor I, ammonia mother liquor I after the cleaning of just being discharged by connection alkali carbonators 20 directly sends into two process memory devices 90 by scavenging pump 80, and the liquid ammonia mother liquor I after residue cleaning sends into cleaning agent memory device 10 by scavenging pump 80 again.
In the present embodiment, the residue alkaline liquid in connection alkali carbonators 20, for the liquid after cleaning in connection alkali carbonators 20 is sent into two process memory devices 90 and cleaning agent delivery pump 11, is maybe sent into turned letter equipment 60 by scavenging pump 80.
In the present embodiment, the sodium bicarbonate suspension that connection alkali carbonators 20 is obtained flows out to next from base output trough 100 and goes out alkali link.
As seen from the above description, alkali carbonators purging system of the present invention arranges cleaning agent memory device, and be that the hot ammonia mother liquor I of 40 DEG C ~ 52 DEG C enters connection alkali carbonators wash cycles as cleaning agent and scabs using preset temperature, because hot ammonia mother liquor I degree of carbonisation is low, molten scar ability is strong and calcium ions and magnesium ions content is low, therefore greatly improves cleaning performance; Hot ammonia mother liquor I can reduce the ammonia consumption of about 10kg in addition, the lifting of cleaning performance in addition, thus the duty cycle that substantially prolongs connection alkali carbonators, significantly improve system production capacity; Adopt hot ammonia mother liquor I to clean, the systematic stock solution Stepwize Shrink, the system that can fill into containing ammonia, brine waste, controls the systematic stock solution balance effectively, cost-saving and reduce environmental protection pressure.
Fig. 2 is the flow chart of the key step of connection alkali carbonators cleaning method according to the embodiment of the present invention.Now to adopt the purging system in Fig. 1, this cleaning method is described in detail.
As shown in Figure 2, alkali carbonators cleaning method of the present invention mainly comprises the following steps.
Step S101: the ammonia mother liquor I possessing preset temperature is sent into according to the amount of the ammonia mother liquor I of setting the top possessing the connection alkali carbonators of cleaning condition.
Preferably, the preset temperature of ammonia mother liquor I is 40 DEG C ~ 52 DEG C.The ammonia mother liquor I degree of carbonisation of this temperature range is low, and molten scar ability is strong, calcium ions and magnesium ions content is low, therefore greatly improves cleaning performance.
In this step, in order to promote cleaning performance, adopt the hot ammonia mother liquor I of 40 DEG C ~ 52 DEG C as cleaning agent, the hot ammonia mother liquor I of these 40 DEG C ~ 52 DEG C is by inhaling ammonia and rear acquisition of heating up by connection alkali liquor I by inhaling ammonia equipment.
Connection alkali carbonators group in the present embodiment sets one group, four tower, also other combinations can be set as required, in one group, this four tower, all the time three towers are had to be in alkaline state, a tower is in cleaning state, the alkaline cycle is 48 hours, cleaning frequency is 16 hours, when the connection alkali carbonators 20 in Fig. 1 completes the alkaline time, cleaning tower is transferred to by alkaline tower, because the alkaline liquid in connection alkali carbonators 20 is ammonia mother liquor II, and cleaning agent is hot ammonia mother liquor I, therefore need that the emptying connection alkali carbonators 20 that makes of alkaline liquid in connection alkali carbonators 20 is possessed cleaning condition, this evacuation procedure comprises:
(1) utilize the first valve of falling halogen 71 and the second valve of the falling halogen 72 cleaning tower complete and emptying with the cleaning of connection alkali carbonators 20 place tower group to be connected, utilize self fluid pressure in connection alkali carbonators 20 to be entered in this cleaning tower by alkaline hydraulic pressure, until two pressure tower balances;
(2) the residue alkaline liquid in connection alkali carbonators 20 is entered storage device turned letter equipment 60.Owing to having partially crystallizable in residue alkaline liquid in connection alkali carbonators 20, directly entering alkaline liquid memory device 50 can cause the crystallization of alkaline liquid memory device 50 inner bottom part too much, nightstool phenomenon is caused to alkaline liquid memory device 50, therefore this residue alkaline liquid temporarily will be drained in turned letter equipment 60.Because turned letter equipment 60 is containing agitating device, the alkaline liquid in turned letter equipment 60 after stirring is sent to alkaline liquid memory device 50 by turned letter pump 61, effectively prevent the generation of alkaline liquid memory device 50 nightstool phenomenon.
In this step, according to the situation of connection alkali carbonators 20 place tower group, preferably, the amount of the ammonia mother liquor I set is as being not less than 350m
3/ h.But different tower groups is according to needs of production, can arrange the amount of different cleaning agents.
Step S103: purgative gas is sent into according to the amount of the purgative gas of setting and possesses in the connection alkali carbonators of cleaning condition.
Preferably, purgative gas is air, and the amount of the purgative gas of setting is 1300-3500m
3/ h.Different tower groups, according to needs of production, can arrange the amount of different purgative gas.
In this step, be air is sent into purgative gas conveying equipment 30 first lap joined in alkali carbonators 20.
Step S105: in the scavenging period preset, ammonia mother liquor I have from top to bottom flowed the cleaning of distich alkali carbonators under the bubbling of purgative gas in connection alkali carbonators.
In this step, according to the situation of one group, the present embodiment four tower, it is 16 hours that default scavenging period is the cleaning frequency.Different tower groups, scavenging period is different.
Alkali carbonators cleaning method of the present invention is that the hot ammonia mother liquor I of 40 DEG C ~ 52 DEG C enters connection alkali carbonators wash cycles as cleaning agent and scabs using preset temperature, because hot ammonia mother liquor I degree of carbonisation is low, molten scar ability is strong and calcium ions and magnesium ions content is low, therefore greatly improves cleaning performance.
Now with the ammonia mother liquor I of different temperatures, different amount, the molten scar effect joining alkali carbonators 20 in Fig. 1 is described in detail by following table:
Upper table data are purgative gas flow is 2000 m
3the experimental data of the molten scar effect of hot ammonia mother liquor I distich alkali carbonators 20 bottom coohng water tank tubulation during/h.By above data, when the temperature of hot ammonia mother liquor I is 52 DEG C, flow is 350 m
3time molten scar effect reach 95%, for obtaining good cleaning performance, set the amount of ammonia mother liquor I as being not less than 350m
3/ h.
In addition, see, according to actual experiment situation, when purgative gas flow is lower than 2000 m according to the top emptying amount and molten scar effect that join alkali carbonators 20
3time molten scar effect can be deteriorated gradually, and higher than 2000 m
3after, the gas phase ammon amount of the tail gas that connection alkali carbonators 20 discharges significantly increases, and purgative gas flow is 2000 m
3time, the gas phase ammon amount of tail gas is about 1200mg/ m
3, purgative gas flow is 3000 m
3time, the gas phase ammon amount of tail gas is about 2700mg/ m
3.Therefore in order to control the gas phase ammon amount of tail gas, the amount of the purgative gas of setting is 1300-3500m
3/ h.
After the cleaning of completing steps S105 distich alkali carbonators 20, connection alkali carbonators 20 will change into alkaline tower again, and this just needs to discharge the cleaning liquid in connection alkali carbonators 20, and this process comprises:
A: first by scavenging pump 80, cleaning liquid is sent into two process memory devices 90;
B: more remaining cleaning liquid in connection alkali carbonators 20 is sent into cleaning agent memory device 10 by scavenging pump 80.
In the present embodiment, because Lian Jian manufacturer arranges two processes of producing ammonium chloride usually, its raw material ammonia mother liquor I, in order to save the cost again pumping into ammonia mother liquor I, just have employed the liquid after cleaning and first entering two process memory devices 90 and reenter cleaning agent memory device 10 mode.
In the present embodiment, because connection alkali carbonators 20 can discharge by tail gas outlet 21 tail gas containing ammonia mother liquor II within the alkaline cycle, also can discharge the tail gas containing ammonia mother liquor I in the cleaning frequency by tail gas outlet 21, in order to prevent, two kinds of feed liquids are mixed mutually arranges two-way pipeline, by Reconstruction of End Gas Separator 40, the tail gas separation containing ammonia mother liquor II of discharging in the connection alkali carbonators 20 alkaline cycle ammonia mother liquor II, flow into alkaline liquid memory device 50 by a road pipeline; By Reconstruction of End Gas Separator 40, the tail gas separation containing ammonia mother liquor I of discharging in connection alkali carbonators 20 cleaning frequency ammonia mother liquor I again, cleaning agent memory device 10 is flowed into by another road pipeline, the feed liquid that effectively prevent two kinds of liquid is mixed mutually, ensure that the normal operation of connection alkali carbonators group.
Alkali carbonators cleaning method of the present invention is that the hot ammonia mother liquor I of 40 DEG C ~ 52 DEG C enters connection alkali carbonators wash cycles as cleaning agent and scabs using preset temperature, molten scar ability is strong, greatly improve cleaning performance, hot ammonia mother liquor I can reduce the ammonia consumption of about 10kg in addition, in addition the lifting of cleaning performance, thus substantially prolongs the duty cycle of connection alkali carbonators, significantly improve system production capacity; Adopt hot ammonia mother liquor I to clean, the systematic stock solution Stepwize Shrink, the system that can fill into, containing ammonia, brine waste, effectively controls the systematic stock solution balance, has saved production cost.
From above description, can find out, alkali carbonators purging system of the present invention and cleaning method are by using the hot ammonia mother liquor I of preset temperature as cleaning agent, molten scar ability is strong, greatly improve cleaning performance, extend the duty cycle of connection alkali carbonators, significantly improve system production capacity, saved production cost.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. join an alkali carbonators purging system, it is characterized in that, comprising:
Cleaning agent memory device, is connected respectively by the upper and lower of pipeline with the connection alkali carbonators possessing cleaning condition, for depositing the ammonia mother liquor I possessing preset temperature;
Purgative gas conveying equipment, is connected with the bottom of described alkali carbonators, for being sent to by purgative gas in described alkali carbonators;
The described temperature possessing the ammonia mother liquor I of preset temperature is 40 DEG C ~ 52 DEG C;
Described purgative gas is air, and the flow of described purgative gas is 1300 ~ 3500m
3/ h.
2. purging system according to claim 1, is characterized in that, described purging system also comprises:
Cleaning agent delivery pump, be arranged on described cleaning agent memory device be connected with the top of described alkali carbonators between pipeline on, for the described ammonia mother liquor I in described cleaning agent memory device is sent in described alkali carbonators;
First liquid feed valve and the second liquid feed valve, be successively set on described cleaning agent delivery pump be connected with the top of described alkali carbonators between pipeline on.
3. purging system according to claim 1, is characterized in that, described purging system also comprises:
Reconstruction of End Gas Separator, its entrance side upper end is connected by the tail gas outlet of pipeline with described alkali carbonators, and the outlet side lower end of described Reconstruction of End Gas Separator is connected with described cleaning agent memory device by pipeline.
4. purging system according to any one of claim 1 to 3, is characterized in that, described purging system also comprises:
Turned letter equipment, containing agitating device, described turned letter equipment is connected by the bottom of pipeline with described alkali carbonators, for deposit the alkaline hydraulic pressure in described alkali carbonators is entered described alkali carbonators place tower group cleaning tower after remaining alkaline liquid.
5. join an alkali carbonators cleaning method, it is characterized in that, comprising:
The ammonia mother liquor I possessing preset temperature is sent into according to the amount of the described ammonia mother liquor I of setting the top possessing the connection alkali carbonators of cleaning condition;
Possess in the connection alkali carbonators of cleaning condition described in purgative gas is sent into according to the amount of the described purgative gas of setting;
In the scavenging period preset, described ammonia mother liquor I has from top to bottom flowed to the cleaning of described alkali carbonators under the bubbling of described purgative gas in described alkali carbonators;
The described temperature possessing the ammonia mother liquor I of preset temperature is 40 DEG C ~ 52 DEG C;
Described purgative gas is air, and the flow of described purgative gas is 1300 ~ 3500m
3/ h.
6. cleaning method according to claim 5, is characterized in that, described by the ammonia mother liquor I possessing preset temperature according to the amount of the described ammonia mother liquor I of setting send into possess the top of the connection alkali carbonators of cleaning condition before also comprise:
Connection alkali liquor I is passed through inhale ammonia equipment and inhale ammonia and the ammonia mother liquor I possessing preset temperature after intensification described in acquisition.
7. cleaning method according to claim 5, is characterized in that, described by the ammonia mother liquor I possessing preset temperature according to the amount of the described ammonia mother liquor I of setting send into possess the top of the connection alkali carbonators of cleaning condition before also comprise:
The connection alkali carbonators of cleaning condition will be possessed described in the emptying acquisition of alkaline liquid be in the connection alkali carbonators of alkaline state.
8. cleaning method according to claim 7, is characterized in that, describedly comprises emptying for the alkaline liquid be in the connection alkali carbonators of alkaline state:
The described alkaline hydraulic pressure be in the connection alkali carbonators of alkaline state is entered in the complete and emptying cleaning tower of the cleaning of this connection alkali carbonators place tower group, until two pressure towers balances;
The described residue alkaline liquid be in the connection alkali carbonators of alkaline state is entered in storage device.
9. cleaning method according to claim 5, is characterized in that, described cleaning method also comprises:
Adopt Reconstruction of End Gas Separator that the tail gas that described alkali carbonators is discharged is carried out gas-liquid separation.
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| CN103435075B (en) * | 2013-08-20 | 2015-04-22 | 湖北双环科技股份有限公司 | Water washing method for carbonization tower and device thereof |
| CN103769400B (en) * | 2014-01-28 | 2015-12-09 | 福建锦江科技有限公司 | A kind of method of cleaning nylon 6/poly conjunction recovery system packed tower |
| CN105836765B (en) * | 2015-01-13 | 2017-08-15 | 青岛海湾集团有限公司 | The cleaning method of carbonators in a kind of sodium bicarbonate production |
| CN105371694B (en) * | 2015-11-17 | 2018-01-23 | 江苏德邦化学工业集团有限公司 | A kind of energy-saving crystal external condensation device cleaning device |
| CN105903732B (en) * | 2016-04-12 | 2018-02-27 | 天津渤化永利化工股份有限公司 | A kind of method for cleaning connection alkali Crystallization Procedure Outer Cooler |
| CN109133114A (en) * | 2018-10-26 | 2019-01-04 | 中盐昆山有限公司 | Cold carbonization Tower System and its operating method outside five one group of tower formulas |
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| CN102935438A (en) | 2013-02-20 |
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