CN113019475A - Softener resin regeneration method - Google Patents
Softener resin regeneration method Download PDFInfo
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- CN113019475A CN113019475A CN202110279735.2A CN202110279735A CN113019475A CN 113019475 A CN113019475 A CN 113019475A CN 202110279735 A CN202110279735 A CN 202110279735A CN 113019475 A CN113019475 A CN 113019475A
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- resin
- salt
- softener
- water
- regeneration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/60—Cleaning or rinsing ion-exchange beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/75—Regeneration or reactivation of ion-exchangers; Apparatus therefor of water softeners
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention discloses a softener resin regeneration method, which comprises the following regeneration steps: s1, salt preparation: firstly, blending salt with resin in a softener, and simultaneously, ensuring that the prepared salt solution is well sealed to avoid dust and foreign matters from entering the softener; s2, backwashing: and then starting the fixed bed softener, flushing the resin by the internal water flow for a certain time to ensure that the resin is fully softened. The invention optimizes the regeneration step mode through improvement, so that the resin in the softener is completely regenerated, the water yield of the resin is improved, the consumption of the regenerated salt industry is reduced, the salt inlet concentration of the improved regeneration mode is always in the optimal salt inlet concentration range, the resin can be fully replaced by the salt solution, the resin and the salt solution can be kept in contact for a long time, the condition that the resin is discharged after unreacted reaction in time is avoided, the invalid resin and the salt industry fully react, the regeneration effect is obviously improved, and the improved mode is more reasonable.
Description
Technical Field
The invention relates to the technical field of resin processing, in particular to a softener resin regeneration method.
Background
The resin generally refers to an organic polymer which has a softening or melting range after being heated, has a tendency to flow under the action of external force during softening, is a solid, semi-solid or liquid organic polymer at normal temperature, is defined in a broad sense, and any high molecular compound which can be used as a processing raw material of plastic products is called as resin, and is called as cation water strong acid resin during resin regeneration.
Most of resin regeneration methods in the current market have short contact time of resin in salt solution in the application process, so that the resin is not reacted in time and is removed, the salt solution is wasted, more salt solution is needed to be spent in the regeneration process, more water is consumed, the water yield of the resin cannot be well improved, the consumption of regenerated salt cannot be reduced, and certain limitation exists in the application process.
Disclosure of Invention
The present invention addresses the deficiencies in the background art by providing a method for regenerating softener resin.
In order to solve the phenomenon, the invention adopts the following technical scheme that the softener resin regeneration method comprises the following steps:
s1, firstly, blending salt with the resin in the softener, and meanwhile, ensuring that the prepared salt solution is well sealed when blending the salt, so as to avoid dust and foreign matters entering the interior;
s2, starting the fixed bed softener, flushing the resin by the internal water flow for a certain time to fully soften the resin;
s3, draining the resin after backwashing is finished, discharging the residual water in the fixed bed softener completely, and treating the water on the surface of the resin;
s4, adding the prepared salt solution into resin, and finishing the infiltration of salt after a certain time;
s5, soaking the resin in softened water to fully mix the resin and the salt inside the resin, so as to play a catalytic role;
s6, when the soaking is finished, the replacement work of the resin can be automatically started, so that the resin is fully replaced by the salt solution;
and S7, finally, after the resin replacement is finished, performing a forward washing step, starting the fixed bed softener again, and flushing the resin by water flow from bottom to top so as to realize the regeneration purpose of the resin.
In a further preferred embodiment of the present invention, in step S1, the concentration of the complex salt is 8%, and the container for complex salt has a volume of 800ml, and the complex salt preparation process needs to be performed in a normal temperature environment.
In a more preferred embodiment of the present invention, in step S2, the water flow in the fixed bed softener is flown from the top to the bottom during backwashing, and the backwashing time is 18 min.
As a further preferred mode of the present invention, in step S3, since the conventional steps of diluting salt into water and salt are divided into two steps, the water outside the resin is removed, the unit of the water is 6t, and then the process waits for 20min, so that the water on the surface of the resin is dried.
In a further preferred embodiment of the present invention, in step S4, the salt infiltration rate is increased, the salt feeding time is 3 hours, and the salt feeding flow rate is 6.5 t/h.
In a further preferred embodiment of the present invention, in step S5, the soaking time is 4.9h, the amount of softened water is 30098t, and the amount of industrial salt is 13.3 t.
In a more preferred embodiment of the present invention, in step S6, the resin type is 001 × 7 type styrene strongly acidic cation resin, and the reaction formula is: r2Ca (Mg) +2Na + → 2RNA + Ca2+ (Mg2+), and R is a functional gene.
In a more preferred embodiment of the present invention, in step S7, the reaction formula is: r2Ca (R2Mg) +2Na + → 2RNA + Ca2+ (Mg2+), wherein R is a functional gene.
The invention optimizes the regeneration step mode through improvement, so that the resin in the softener is completely regenerated, the water yield of the resin is improved, the consumption of the regenerated salt industry is reduced, the salt inlet concentration of the improved regeneration mode is always in the optimal salt inlet concentration range, the resin can be fully replaced by the salt solution, the resin and the salt solution can be kept in contact for a long time, the condition that the resin is not reacted and is discharged in time is avoided, the problem of easy salt solution waste is solved, the salt inlet time is better prolonged in the reaction process, the regeneration flow rate is better reduced, the invalid resin and the salt industry are fully reacted, the regeneration effect is obviously improved, the consumption of industrial salt is greatly reduced, and the improved mode is more reasonable.
Drawings
FIG. 1 is a flow chart of the regeneration of the resin of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a method of regenerating softener resin, the method comprising:
s1, firstly, blending salt with the resin in the softener, and meanwhile, ensuring that the prepared salt solution is well sealed when blending the salt, so as to avoid dust and foreign matters entering the interior;
s2, starting the fixed bed softener, flushing the resin by the internal water flow for a certain time to fully soften the resin;
s3, draining the resin after backwashing is finished, discharging the residual water in the fixed bed softener completely, and treating the water on the surface of the resin;
s4, adding the prepared salt solution into resin, and finishing the infiltration of salt after a certain time;
s5, soaking the resin in softened water to fully mix the resin and the salt inside the resin, so as to play a catalytic role;
s6, when the soaking is finished, the replacement work of the resin can be automatically started, so that the resin is fully replaced by the salt solution;
and S7, finally, after the resin replacement is finished, performing a forward washing step, starting the fixed bed softener again, and flushing the resin by water flow from bottom to top so as to realize the regeneration purpose of the resin.
In step S1, the concentration of the salt is 8%, and the container for preparing the salt has a volume of 800ml, and the salt preparation process needs to be performed in a normal temperature environment.
In step S2, during backwashing, the water flow in the fixed bed softener flows from top to bottom, and the backwashing time is 18 min.
In step S3, since the conventional dilution of salt into water and salt into two steps, the water outside the resin is removed first, the unit of the water is 6t, and then the process waits for 20min, so that the water on the surface of the resin is dried.
In step S4, the salt infiltration rate is increased, the salt feeding time is 3h, and the salt feeding flow is 6.5 t/h.
In step S5, the soaking time is 4.9h, the consumption of softened water is 30098t, and the consumption of industrial salt is 13.3 t.
In step S6, the resin type is 001 × 7 type styrene strongly acidic cation resin during displacement, and the reaction formula is: r2Ca (Mg) +2Na + → 2RNA + Ca2+ (Mg2+), and R is a functional gene.
In step S7, in the case of forward washing, the reaction formula is: r2Ca (R2Mg) +2Na + → 2RNA + Ca2+ (Mg2+), wherein R is a functional gene.
Example one
The invention provides a technical scheme that: a method of regenerating softener resin, the method comprising:
s1, firstly, blending salt with the resin in the softener, and meanwhile, ensuring that the prepared salt solution is well sealed when blending the salt, so as to avoid dust and foreign matters entering the interior;
s2, starting the fixed bed softener, flushing the resin by the internal water flow for a certain time to fully soften the resin;
s3, draining the resin after backwashing is finished, discharging the residual water in the fixed bed softener completely, and treating the water on the surface of the resin;
s4, adding the prepared salt solution into resin, and finishing the infiltration of salt after a certain time;
s5, soaking the resin in softened water to fully mix the resin and the salt inside the resin, so as to play a catalytic role;
s6, when the soaking is finished, the replacement work of the resin can be automatically started, so that the resin is fully replaced by the salt solution;
and S7, finally, after the resin replacement is finished, performing a forward washing step, starting the fixed bed softener again, and flushing the resin by water flow from bottom to top so as to realize the regeneration purpose of the resin.
In step S1, the concentration of the complex salt is 10%, and the container for complex salt has a volume of 800ml, and the complex salt process needs to be performed in a normal temperature environment.
In step S2, during backwashing, the water flow in the fixed bed softener flows from top to bottom, and the backwashing time is 20 min.
In step S3, since the conventional dilution of salt into water and salt into two steps, the water outside the resin is removed first, the unit of the water is 6t, and then the process waits for 20min, so that the water on the surface of the resin is dried.
In step S4, the salt infiltration rate is increased, the salt feeding time is 3h, and the salt feeding flow is 7.5 t/h.
In step S5, the soaking time is 5.3h, the consumption of softened water is 30098t, and the consumption of industrial salt is 14.9 t.
In step S6, the resin type is 001 × 7 type styrene strongly acidic cation resin during displacement, and the reaction formula is: r2Ca (Mg) +2Na + → 2RNA + Ca2+ (Mg2+), and R is a functional gene.
In step S7, in the case of forward washing, the reaction formula is: r2Ca (R2Mg) +2Na + → 2RNA + Ca2+ (Mg2+), wherein R is a functional gene.
Example two
The invention provides a technical scheme that: a method of regenerating softener resin, the method comprising:
s1, firstly, blending salt with the resin in the softener, and meanwhile, ensuring that the prepared salt solution is well sealed when blending the salt, so as to avoid dust and foreign matters entering the interior;
s2, starting the fixed bed softener, flushing the resin by the internal water flow for a certain time to fully soften the resin;
s3, draining the resin after backwashing is finished, discharging the residual water in the fixed bed softener completely, and treating the water on the surface of the resin;
s4, adding the prepared salt solution into resin, and finishing the infiltration of salt after a certain time;
s5, soaking the resin in softened water to fully mix the resin and the salt inside the resin, so as to play a catalytic role;
s6, when the soaking is finished, the replacement work of the resin can be automatically started, so that the resin is fully replaced by the salt solution;
and S7, finally, after the resin replacement is finished, performing a forward washing step, starting the fixed bed softener again, and flushing the resin by water flow from bottom to top so as to realize the regeneration purpose of the resin.
In step S1, the concentration of the compounded salt is 6%, and the container for compounding salt has a volume of 800ml, and the compounding process needs to be performed in a normal temperature environment.
In step S2, during backwashing, the water flow in the fixed bed softener flows from top to bottom, and the backwashing time is 15 min.
In step S3, since the conventional dilution of salt into water and salt into two steps, the water outside the resin is removed first, the unit of the water is 6t, and then the process waits for 20min, so that the water on the surface of the resin is dried.
In step S4, the salt infiltration rate is increased, the salt feeding time is 3h, and the salt feeding flow is 7.5 t/h.
In step S5, the soaking time is 3.9h, the consumption of softened water is 30098t, and the consumption of industrial salt is 12.6 t.
In step S6, the resin type is 001 × 7 type styrene strongly acidic cation resin during displacement, and the reaction formula is: r2Ca (Mg) +2Na + → 2RNA + Ca2+ (Mg2+), and R is a functional gene.
In step S7, in the case of forward washing, the reaction formula is: r2Ca (R2Mg) +2Na + → 2RNA + Ca2+ (Mg2+), wherein R is a functional gene.
The resin regeneration parameters of the present invention are tabulated below:
in conclusion, the regeneration step mode is improved and optimized, so that the resin in the softener is completely regenerated, the water yield of the resin is improved, the consumption of the regenerated salt industry is reduced, the salt inlet concentration of the improved regeneration mode is always in the optimal salt inlet concentration range, the resin can be fully replaced by the salt solution, the resin and the salt solution can be kept in contact for a long time, the condition that the resin is not reacted and is discharged in time is avoided, the problem of easy salt solution waste is solved, the salt inlet time is prolonged in the reaction process, the regeneration flow rate is well reduced, the invalid resin and the salt industry are fully reacted, the regeneration effect is remarkably improved, meanwhile, the consumption of industrial salt is greatly reduced, and the improved mode is more reasonable.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The method for regenerating the softener resin is characterized in that the regeneration step comprises the following steps:
s1, salt preparation: firstly, blending salt with resin in a softener, and simultaneously, ensuring that the prepared salt solution is well sealed to avoid dust and foreign matters from entering the softener;
s2, backwashing: then starting the fixed bed softener, flushing the resin by the internal water flow for a certain time to fully soften the resin;
s3, draining: after backwashing is finished, the resin can be drained, residual water in the fixed bed softener is drained completely, and meanwhile, water on the surface of the resin is treated well;
s4, salt feeding: adding the prepared salt solution into resin, and finishing the infiltration of salt after waiting for a certain time;
s5, soaking: then the resin is placed in softened water for soaking, so that the resin and the salt inside are fully mixed, and the catalysis effect is achieved;
s6, substitution: after soaking is finished, the replacement work of the resin can be automatically started, so that the resin is fully replaced by the salt solution;
s7, forward washing: and finally, after the resin replacement is finished, the step of forward washing can be carried out, the fixed bed softener is started again, and at the moment, the resin is washed by water flow from bottom to top, so that the aim of regenerating the resin is fulfilled.
2. The method for regenerating softener resin according to claim 1, wherein the concentration of the complex salt is 8% in step S1, the container for complex salt has a capacity of 800ml, and the complex salt is carried out in a normal temperature environment.
3. The method for regenerating softener resin according to claim 1, wherein in step S2, the water flow in the fixed bed softener is flown from top to bottom during the backwashing, and the backwashing time is 18 min.
4. The method of claim 1, wherein in step S3, the water outside the resin is removed in 6t, and then the method waits for 20min to dry the water on the surface of the resin, because the conventional steps of diluting salt into water and salt are performed.
5. The method of claim 1, wherein in step S4, the salt penetration rate is increased, the salt feeding time is 3h, and the salt feeding flow rate is 6.5 t/h.
6. The method for regenerating softener resin as claimed in claim 1, wherein in step S5, the soaking time is 4.9h, the amount of softened water is 30098t, and the amount of industrial salt is 13.3 t.
7. The method of regenerating softener resin as claimed in claim 1, wherein in step S6, the resin type is 001 x 7 type styrene strongly acidic cation resin at the time of replacement, and the reaction formula is: r2Ca (Mg) +2Na + → 2RNA + Ca2+ (Mg2+), and R is a functional gene.
8. The method for regenerating softener resin according to claim 1, wherein in step S7, the reaction formula is: r2Ca (R2Mg) +2Na + → 2RNA + Ca2+ (Mg2+), wherein R is a functional gene.
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| CN202110279735.2A CN113019475A (en) | 2021-03-16 | 2021-03-16 | Softener resin regeneration method |
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| AU6728765A (en) * | 1965-11-30 | 1967-06-01 | Gant Martin | Improved water softener |
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2021
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