CN103011080A - Automatic neutralizing chemical feeding device and method for hydrochloric acid regeneration and desiliconization - Google Patents
Automatic neutralizing chemical feeding device and method for hydrochloric acid regeneration and desiliconization Download PDFInfo
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- CN103011080A CN103011080A CN2012105768460A CN201210576846A CN103011080A CN 103011080 A CN103011080 A CN 103011080A CN 2012105768460 A CN2012105768460 A CN 2012105768460A CN 201210576846 A CN201210576846 A CN 201210576846A CN 103011080 A CN103011080 A CN 103011080A
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Abstract
The invention provides an automatic neutralizing chemical feeding device and an automatic neutralizing chemical feeding method for hydrochloric acid regeneration and desiliconization. The automatic neutralizing chemical feeding method comprises the following steps of: collecting the reaction target pH of a neutralization kettle, the flow of waste acid, the pH of the waste acid, the actual temperature of the neutralization kettle and the actual pH of the neutralization kettle; calculating the needed dosage volume flow F3 of the neutralizing chemical according to the reaction target pH of the neutralization kettle, the measured volume flow F2 of the waste acid, the pH of the waste acid, the actual dosage volume flow of the neutralizing chemical, the actual pH of the neutralization kettle and the actual temperature of the neutralization kettle; comparing the needed dosage volume flow F3 of the neutralizing chemical with the actual dosage volume flow F1 of the neutralizing chemical; and controlling the rotation speed of a neutralizing chemical feeding pump to keep consistent between F3 and F1 if F3 and F1 are inconsistent, thereby realizing automatic control and real-time adjustment on the dosage of the neutralizing chemical and avoiding imbalanced dosage concentration and untimely concentration adjustment caused by the present manual intervention control.
Description
Technical field
The present invention relates in the regeneration of hydrochloric acid desiliconization and medicament automatic medicine adding apparatus and method.
Background technology
At present, generally adopt in the ammoniacal liquor conduct in the regeneration of hydrochloric acid desilication process and medicament, when spent acid for example is that waste hydrochloric acid is neutralized to the pH value greater than 3 the time, iron ion in the waste hydrochloric acid begins to generate the precipitation of hydroxide particulate matter, the oxyhydroxide of iron forms a large amount of flcos in the process of precipitation, these flcos can adsorb a large amount of silicon-dioxide and rapidly effective sedimentation forms mud, the ultimate principle of waste hydrochloric acid desiliconization that Here it is.
But in and added amount of chemical fixing, because its dosage is subjected to the impact of temperature, free acid residual volume all larger, generally making the pH value of spent acid adjust to 3.5-4.5 with added amount of chemical in during practical application does not wait, need to adjust according to the adjustment of Desiliconization Technology Parameters.
Because the regeneration of hydrochloric acid desilication process is strict to the pH control of neutralization reaction, differing temps, the lower colloidal attitude hydroxide three-iron amount that produces of pH value are different, therefore, in the actual motion operating process, in and the dosage of medicament need thereupon in time adjustment.Because, in and the control of added amount of chemical most important to the effect of desiliconization, directly have influence on the quality of the brown iron oxide of the quality of desiliconization liquid and subsequent regeneration explained hereafter.
In present and adding of agent control most what adopt is manual intervention control, but adjust untimely with the unbalanced or concentration of adding of agent concentration during the improper meeting of method causes, when serious can because of in and the added amount of chemical deficiency cause the out of control so that colloidal attitude hydroxide three-iron of pH value can't sedimentation, or cause spent acid solution crystallization after the desiliconization to be inclined to the problems such as the excessive equipment that follow-up acid regeneration process occurs stopping up, pipeline because dosage is excessive.Generally speaking, the problem that mainly has following several respects:
1, easily cause adding the unbalanced of concentration, low when high during the pH value, low when high during the output of hydroxide three-iron, thus affect the effect of desiliconization;
2, the dosage adjustment is untimely, not in place, causes easily the pH value out of control;
3, it is excessive to be prone to dosage, causes the pH value too high so that the crystallization tendency of the spent acid after the desiliconization is large, and equipment, line clogging phenomenon appear in follow-up acid regeneration process;
4, operation is cumbersome, needs regular human intervention adjustment.
Therefore, how to provide in a kind of the realization and medicament automatically, in the regeneration of hydrochloric acid desiliconization that accurately adds and medicament automatic medicine adding apparatus and method be the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide in a kind of regeneration of hydrochloric acid desiliconization and medicament automatic medicine adding apparatus and method, with adding of agent concentration deficiency or the excessive problem that causes the acid purification system fluctuation of service, control with the automatic, accurate of added amount of chemical in can realizing in having solved.
To achieve the above object, the present invention adopts following technical scheme:
The invention discloses in a kind of regeneration of hydrochloric acid desiliconization and the medicament automatic medicine adding apparatus, be used for carrying out and the automatic input of medicament to the neutralization reaction tank, during described neutralization reaction tank passes through and the medicament supply pipe and in and pharmacy jar be communicated with, also be connected with a spent acid supply pipe on the described neutralization reaction tank, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter, neutralization reaction tank thermometer and control unit, described spent acid under meter and described spent acid pH meter are installed on respectively on the described spent acid supply pipe, in described and the adding of agent pump be installed on described in and the medicament supply pipe on, described neutralizating medicine agent flux meter be installed on described in and on the medicament supply line and in described and on the pipeline section between adding of agent pump and the described neutralization reaction tank, described neutralization reaction tank pH meter and neutralization reaction tank thermometer are arranged at respectively in the described neutralization reaction tank, described control unit respectively with described spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter and neutralization reaction tank thermometer connect.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament automatic medicine adding apparatus, described in and the rotating speed of adding of agent pump and described in and the volumetric flow rate that adds of medicament reality be directly proportional.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament automatic medicine adding apparatus, described in and the adding of agent pump adopt variable frequency control.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament automatic medicine adding apparatus, described in and the adding of agent pump adopt mechanically actuated diaphragm metering pump.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament automatic medicine adding apparatus, described in and an end of medicament supply pipe be connected in described in and the bottom of pharmacy jar, described in and the other end of medicament supply pipe be positioned at the top of described neutralization reaction tank.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament automatic medicine adding apparatus, be provided with stirring mechanism in the described neutralization reaction tank.
The invention also discloses in a kind of regeneration of hydrochloric acid desiliconization and medicament Automatic Dosing method, comprise the steps:
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament Automatic Dosing method, adopt one be used for to and retort automatically add in and the automatic medicine adding apparatus of medicament, during described neutralization reaction tank passes through and the medicament supply pipe and in and pharmacy jar be communicated with, also be connected with a spent acid supply pipe on the described neutralization reaction tank, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter, neutralization reaction tank thermometer and control unit, described spent acid under meter and described spent acid pH meter are installed on respectively on the described spent acid supply pipe, in described and the adding of agent pump be installed on described in and the medicament supply pipe on, described neutralizating medicine agent flux meter be installed on described in and on the medicament supply line and in described and on the pipeline section between adding of agent pump and the described neutralization reaction tank, described neutralization reaction tank pH meter and neutralization reaction tank thermometer are arranged at respectively in the described neutralization reaction tank, described control unit respectively with described spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter and neutralization reaction tank thermometer connect.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament Automatic Dosing method, described in and the rotating speed of adding of agent pump and described in and the volumetric flow rate that adds of medicament reality be directly proportional.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization and in the medicament Automatic Dosing method, described in and the adding of agent pump adopt variable frequency control.
In the regeneration of hydrochloric acid desiliconization provided by the invention and medicament automatic medicine adding apparatus and method, by gathering neutralization reaction tank reaction target pH value, the flow of spent acid, the pH value of spent acid, neutralization reaction tank actual temperature and neutralization reaction tank actual pH, and can be according to the volumetric flow rate F2 of neutralization reaction tank reaction target pH value and the above-mentioned spent acid that records, the pH value of spent acid, in and medicament reality add volumetric flow rate, neutralization reaction tank actual pH and neutralization reaction tank actual temperature, in calculating and medicament required add volumetric flow rate F3, if and relatively and medicament required add volumetric flow rate F3 with in and medicament reality add volumetric flow rate F1, if in and medicament required add volumetric flow rate F3 with in and medicament reality to add volumetric flow rate F1 inconsistent, can by in the control and the rotating speed of adding of agent pump come so that both are consistent, thereby adjust with real-time with the automatic control of added amount of chemical in can realizing, avoided that existing manual intervention control causes add the density unevenness weighing apparatus or concentration is adjusted untimely problem, thereby stopped because of in and the added amount of chemical deficiency cause the neutralization reaction tank pH colloidal attitude hydroxide three-iron that causes out of control can't sedimentation, also stopped because adding the excessive equipment that stops up acid regeneration that causes of the spent acid solution crystallization tendency that too much causes after the desiliconization, the problems such as pipeline, in time control with the accurate of dosage of medicament in the realization, guarantee that the reaction solution of neutralization reaction tank keeps required target pH value.In addition, with the medicament automatic medicine adding apparatus, not only easy and simple to handle, maintenance of equipment makes things convenient in the regeneration of hydrochloric acid desiliconization.Whole computation process is finished automatically by control unit, and via control unit in and the control of the rotating speed of adding of agent pump, thereby realize in and the automatic control of added amount of chemical and adjusting in real time.
To sum up, the present invention mainly has following advantage:
⑴ dosage and target control pH value with medicament in can realize interlocking, and target control pH value can in for example programmable logic controller (PLC) setting of control unit, be moved adjustment by program automatically;
⑵ in and the dosage of medicament is controlled easily, precision is high, the pH value of neutralization reaction tank can keep stable;
⑶ whole device operation is in time stable, easy and simple to handle;
⑷ overhaul of the equipments, easy to maintenance.
Description of drawings
Provided by following embodiment and accompanying drawing with medicament automatic medicine adding apparatus and method in the regeneration of hydrochloric acid desiliconization of the present invention.
Fig. 1 is in the regeneration of hydrochloric acid desiliconization of one embodiment of the invention and the structural representation of medicament automatic medicine adding apparatus;
Fig. 2 is in the regeneration of hydrochloric acid desiliconization of one embodiment of the invention and the schematic flow sheet of medicament Automatic Dosing method;
Among the figure, among 1-neutralization reaction tank, the 2-and in the pharmacy jar, 3-and adding of agent pump, 4-neutralizating medicine agent flux meter, 5-spent acid under meter, 6-neutralization reaction tank pH meter, 7-spent acid pH meter, 8-neutralization reaction tank thermometer, 9-control unit, 10-stirring mechanism, 11-spent acid source.
Embodiment
Below will be to being described in further detail with medicament automatic medicine adding apparatus and method in the regeneration of hydrochloric acid desiliconization of the present invention.
Below with reference to accompanying drawings the present invention is described in more detail, has wherein represented the preferred embodiments of the present invention, should be appreciated that those skilled in the art can revise the present invention described here and still realize beneficial effect of the present invention.Therefore, following description is appreciated that extensively knowing for those skilled in the art, and not as limitation of the present invention.
For clear, whole features of practical embodiments are not described.In the following description, be not described in detail known function and structure, the confusion because they can make the present invention owing to unnecessary details.Will be understood that in the exploitation of any practical embodiments, must make a large amount of implementation details to realize developer's specific objective, for example according to relevant system or relevant commercial restriction, change into another embodiment by an embodiment.In addition, will be understood that this development may be complicated and time-consuming, but only be routine work to those skilled in the art.
For purpose of the present invention, feature are become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.It should be noted that accompanying drawing all adopts very the form of simplifying and all uses non-accurately ratio, only in order to convenient, the purpose of the aid illustration embodiment of the invention lucidly.
Embodiment one
See also Fig. 1, in the regeneration of hydrochloric acid desiliconization that present embodiment provides and the medicament automatic medicine adding apparatus, be used for automatically adding as required and medicament (embodiment own is ammoniacal liquor) to the neutralization reaction tank 1 that continues the injection spent acid, during described neutralization reaction tank 1 passes through and the medicament supply pipe and in and pharmacy jar 2 be communicated with, in and medicament be stored in described in and pharmacy jar 2 in, also be connected with a spent acid supply pipe on the described neutralization reaction tank 1, described spent acid supply pipe is connected connection with the spent acid source.
Described automatic medicine adding apparatus comprise spent acid under meter 5, spent acid pH meter 7, in and adding of agent pump 3, neutralizating medicine agent flux meter 4, neutralization reaction tank pH meter 6, neutralization reaction tank thermometer 8 and control unit 9.Described spent acid under meter 5 and described spent acid pH meter 7 are installed on respectively on the described spent acid supply pipe, in described and adding of agent pump 3 be installed on described in and the medicament supply pipe on, described neutralizating medicine agent flux meter 4 be installed on described in and on the medicament supply line and in described and on the pipeline section between adding of agent pump 3 and the described neutralization reaction tank 1, described neutralization reaction tank pH meter 6 and neutralization reaction tank thermometer 8 are arranged at respectively in the described neutralization reaction tank 1, described control unit 9 respectively with described spent acid under meter 5, the spent acid pH meter, in and adding of agent pump 3, neutralizating medicine agent flux meter 4, neutralization reaction tank pH meter 6 and neutralization reaction tank thermometer 8 connect.
By spent acid under meter 5, spent acid pH meter 7, neutralizating medicine agent flux meter 4, neutralization reaction tank pH meter 6, neutralization reaction tank thermometer 8 can record respectively volumetric flow rate F2, the spent acid of spent acid the pH value, in and medicament reality add volumetric flow rate, neutralization reaction tank actual pH and neutralization reaction tank actual temperature.Control unit can according to the pH value of the volumetric flow rate F2 of neutralization reaction tank reaction target pH value and the above-mentioned spent acid that records, spent acid, in and medicament reality add volumetric flow rate, neutralization reaction tank actual pH and neutralization reaction tank actual temperature, in can calculating with medicament required add volumetric flow rate F3.If in and medicament required add volumetric flow rate F3 with in and medicament reality to add volumetric flow rate F1 inconsistent, can by in the control and the rotating speed of adding of agent pump 3 come so that both are consistent, thereby adjust with real-time with the automatic control of added amount of chemical in can realizing, avoided that existing manual intervention control causes add the density unevenness weighing apparatus or concentration is adjusted untimely problem, thereby stopped because of in and the added amount of chemical deficiency cause the neutralization reaction tank pH value colloidal attitude hydroxide three-iron that causes out of control can't sedimentation, also stopped because adding the excessive equipment that stops up acid regeneration that causes of the spent acid solution crystallization tendency that too much causes after the desiliconization, the problems such as pipeline, in time control with the accurate of dosage of medicament in the realization, guarantee that the reaction solution of neutralization reaction tank keeps required target pH value.In addition, with the medicament automatic medicine adding apparatus, not only easy and simple to handle, maintenance of equipment makes things convenient in the regeneration of hydrochloric acid desiliconization.
The described control unit 9 preferred programmable logic controllers (Programmable Logic Controller, PLC) that adopt.
Better, in the present embodiment, described in and the rotating speed of adding of agent pump 3 and described in and the volumetric flow rate that adds of medicament reality be directly proportional, that is to say described in and adding of agent pump 3 adopt with in quantitatively add pump with the rotating speed of adding of agent pump 3 is directly proportional.Thereby, by in the control and the rotating speed of adding of agent pump 3, in just can controlling and the flow of medicament be in and added amount of chemical.
Better, described in and adding of agent pump 3 adopt variable frequency control.Adopt speed control by frequency variation to realize in the constant voltage confession and medicament, compare with medicament in supplying with realize constant voltage with regulated valve, energy-saving effect is very remarkable, and has following advantage: 1, play transient equilibrium, starting current can be limited in the rated current, thus when having avoided starting to the impact of electrical network; 2, because in and the mean speed of adding of agent pump 3 reduced, thereby in can prolonging and the work-ing life of adding of agent pump 3; 3, the water hammer effect in the time of can eliminating starting and shutdown.
Better, described in and adding of agent pump 3 adopt mechanically actuated diaphragm metering pumps.The known technology of structural formula this area of mechanically actuated diaphragm metering pump, this does not specifically launch again.The principle of work of mechanically actuated diaphragm metering pump is that motor is done variable velocity motion by direct-connection transmission drive worm couple, under the effect of toggle, will rotatablely move and change linear reciprocating motion into.Slide bar directly is connected with diaphragm, directly pushes away (drawing) dynamic diaphragm during the slide bar to-and-fro movement during work and agitates back and forth, finishes the suction purpose by the check valve keying effect on the pump head, reaches the function of carrying liquid.This case, mechanically actuated diaphragm metering pump can be measured the machinery of carrying liquid, also are pump of constant delivery type, proportioning pump.Usually, mechanically actuated diaphragm metering pump is a kind ofly can satisfy various strict technical process needs, flow can be in the 0-100% scope step-less adjustment, be used for carrying a kind of special volumetric pump of liquid (particularly corrosive liquid).
Better, described in and adding of agent pump 3 arrange altogether two, the using and the reserved, with in realizing and medicament stablize, continue to add i.e. supply.
Better, described in and an end of medicament supply pipe be connected in described in and the bottom of pharmacy jar 2, thereby in can taking full advantage of and in the pharmacy jar 2 in and medicament.
Better, described in and the other end of medicament supply pipe be positioned at the top of described neutralization reaction tank 1, in can utilizing and the deadweight of medicament, be added in the neutralization reaction tank 1.
Better, be provided with stirring mechanism 10 in the described neutralization reaction tank 1, by stirring mechanism 10 can so that in neutralization reaction tank 1 spent acid and in and medicament realize mixing fully, improve both neutralization reaction efficient.
Embodiment two
See also Fig. 2, present embodiment provides in a kind of regeneration of hydrochloric acid desiliconization and medicament Automatic Dosing method, be used for automatically adding as required and medicament to the neutralization reaction tank that continues the injection spent acid, from the spent acid of process upstream section with volumetric flow rate F2(m3/h) flow in the neutralization reaction tank, described Automatic Dosing method comprises the steps:
Described Automatic Dosing method can adopt as in the embodiment one described regeneration of hydrochloric acid desiliconization and the medicament automatic medicine adding apparatus, please continue to consult Fig. 1.
In above-mentioned step 1, can set neutralization reaction tank reaction target pH value by described control unit 9, gather the flow of spent acid (namely flowing to the spent acid of neutralization reaction tank 1) and be sent to described programmable logic controller by described spent acid under meter 5, gathering the pH value of spent acid and be sent in the described control unit 9(present embodiment by described spent acid pH meter 7 is programmable logic controller), gather neutralization reaction tank actual temperature and be sent to described programmable logic controller by described neutralization reaction tank thermometer 8, and gather neutralization reaction tank actual pH and be sent to described programmable logic controller by described neutralization reaction tank pH meter 6;
In described step 2, during described control unit 9 calculates according to described dosage calculation formula and medicament required add volumetric flow rate.
In described step 3, described control unit 9 according in and medicament reality add volumetric flow rate F1 and in and the required comparable situation that adds volumetric flow rate F3 of medicament, by in adjusting and the rotating speed of adding of agent pump 3 so that in and medicament reality add volumetric flow rate F1 equal in and medicament required add volumetric flow rate F3, in namely realizing and the dosage of medicament automatically, accurately control.
In sum, in the regeneration of hydrochloric acid desiliconization provided by the invention and medicament automatic medicine adding apparatus and method, by gathering neutralization reaction tank reaction target pH value, the flow of spent acid, the pH value of spent acid, neutralization reaction tank actual temperature and neutralization reaction tank actual pH, and can be according to the volumetric flow rate F2 of neutralization reaction tank reaction target pH value and the above-mentioned spent acid that records, the pH value of spent acid, in and medicament reality add volumetric flow rate, neutralization reaction tank actual pH and neutralization reaction tank actual temperature, in calculating and medicament required add volumetric flow rate F3, if and relatively and medicament required add volumetric flow rate F3 with in and medicament reality add volumetric flow rate F1, if in and medicament required add volumetric flow rate F3 with in and medicament reality to add volumetric flow rate F1 inconsistent, can by in the control and the rotating speed of adding of agent pump come so that both are consistent, thereby adjust with real-time with the automatic control of added amount of chemical in can realizing, avoided that existing manual intervention control causes add the density unevenness weighing apparatus or concentration is adjusted untimely problem, thereby stopped because of in and the added amount of chemical deficiency cause the neutralization reaction tank pH colloidal attitude hydroxide three-iron that causes out of control can't sedimentation, also stopped because adding the excessive equipment that stops up acid regeneration that causes of the spent acid solution crystallization tendency that too much causes after the desiliconization, the problems such as pipeline, in time control with the accurate of dosage of medicament in the realization, guarantee that the reaction solution of neutralization reaction tank keeps required target pH value.In addition, with the medicament automatic medicine adding apparatus, not only easy and simple to handle, maintenance of equipment makes things convenient in the regeneration of hydrochloric acid desiliconization.Whole computation process is finished automatically by control unit, and via control unit in and the control of the rotating speed of adding of agent pump, thereby realize in and the automatic control of added amount of chemical and adjusting in real time.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. in the regeneration of hydrochloric acid desiliconization and the medicament automatic medicine adding apparatus, be used for carrying out and automatically the throwing in as required of medicament to the neutralization reaction tank, during described neutralization reaction tank passes through and the medicament supply pipe and in and pharmacy jar be communicated with, also be connected with a spent acid supply pipe on the described neutralization reaction tank, it is characterized in that, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter, neutralization reaction tank thermometer and control unit, described spent acid under meter and described spent acid pH meter are installed on respectively on the described spent acid supply pipe, in described and the adding of agent pump be installed on described in and the medicament supply pipe on, described neutralizating medicine agent flux meter be installed on described in and on the medicament supply line and in described and on the pipeline section between adding of agent pump and the described neutralization reaction tank, described neutralization reaction tank pH meter and neutralization reaction tank thermometer are arranged at respectively in the described neutralization reaction tank, described control unit respectively with described spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter and neutralization reaction tank thermometer connect.
2. in the regeneration of hydrochloric acid desiliconization according to claim 1 and the medicament automatic medicine adding apparatus, it is characterized in that, described in and the rotating speed of adding of agent pump and described in and the volumetric flow rate that adds of medicament reality be directly proportional.
3. in the regeneration of hydrochloric acid desiliconization according to claim 2 and the medicament automatic medicine adding apparatus, it is characterized in that, described in and the adding of agent pump adopt variable frequency control.
4. in the regeneration of hydrochloric acid desiliconization according to claim 2 and the medicament automatic medicine adding apparatus, it is characterized in that, described in and the adding of agent pump adopt mechanically actuated diaphragm metering pump.
5. in the regeneration of hydrochloric acid desiliconization according to claim 1 and the medicament automatic medicine adding apparatus, it is characterized in that, in described and an end of medicament supply pipe be connected in described in and the bottom of pharmacy jar, described in and the other end of medicament supply pipe be positioned at the top of described neutralization reaction tank.
6. in the regeneration of hydrochloric acid desiliconization according to claim 1 and the medicament automatic medicine adding apparatus, it is characterized in that, be provided with stirring mechanism in the described neutralization reaction tank.
7. in the regeneration of hydrochloric acid desiliconization and medicament Automatic Dosing method, it is characterized in that, comprise the steps:
Step 1 is set neutralization reaction tank reaction target pH value, and is gathered the flow of spent acid, pH value, neutralization reaction tank actual temperature and the neutralization reaction tank actual pH of spent acid;
Step 2, in calculating by the dosage calculation formula and medicament required add volumetric flow rate, described dosage calculation formula is
In the formula: F1-in and medicament reality add volumetric flow rate, the volumetric flow rate of F2-spent acid, F3-in and medicament required add volumetric flow rate, T-neutralization reaction tank actual temperature, PH1-neutralization reaction tank actual pH, PH2-neutralization reaction tank reaction target pH value, the pH value of PH3-spent acid; V-in and the rotating speed of adding of agent pump;
Step 3, according in and medicament required add volumetric flow rate and in and in the comparable situation control that adds volumetric flow rate of medicament reality and the rotating speed of adding of agent pump, so that both are identical, when F1＞F3, in the reduction and the rotating speed V of adding of agent pump until F1=F3; When F1＜F3, in the increase and the rotating speed V of adding of agent pump until F1=F3, thereby in realizing and added amount of chemical automatically, accurately control.
8. in the regeneration of hydrochloric acid desiliconization according to claim 7 and medicament Automatic Dosing method, it is characterized in that, adopt one be used for to and retort automatically add in and the automatic medicine adding apparatus of medicament, during described neutralization reaction tank passes through and the medicament supply pipe and in and pharmacy jar be communicated with, also be connected with a spent acid supply pipe on the described neutralization reaction tank, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter, neutralization reaction tank thermometer and control unit, described spent acid under meter and described spent acid pH meter are installed on respectively on the described spent acid supply pipe, in described and the adding of agent pump be installed on described in and the medicament supply pipe on, described neutralizating medicine agent flux meter be installed on described in and on the medicament supply line and in described and on the pipeline section between adding of agent pump and the described neutralization reaction tank, described neutralization reaction tank pH meter and neutralization reaction tank thermometer are arranged at respectively in the described neutralization reaction tank, described control unit respectively with described spent acid under meter, the spent acid pH meter, in and the adding of agent pump, neutralizating medicine agent flux meter, neutralization reaction tank pH meter and neutralization reaction tank thermometer connect.
9. in the regeneration of hydrochloric acid desiliconization according to claim 8 and medicament Automatic Dosing method, it is characterized in that, described in and the rotating speed of adding of agent pump and described in and the volumetric flow rate that adds of medicament reality be directly proportional.
10. in the regeneration of hydrochloric acid desiliconization according to claim 9 and medicament Automatic Dosing method, it is characterized in that, described in and the adding of agent pump adopt variable frequency control.
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| CN105060450A (en) * | 2015-08-13 | 2015-11-18 | 成都太古科技有限公司 | Acid-base neutralization device for online pH (potential of hydrogen) adjustment and implementation method of acid-base neutralization device |
| CN113877503A (en) * | 2021-10-24 | 2022-01-04 | 黑龙江赫益乳业科技有限公司 | Concentration control unit of chlorate removal equipment in emulsion |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060450A (en) * | 2015-08-13 | 2015-11-18 | 成都太古科技有限公司 | Acid-base neutralization device for online pH (potential of hydrogen) adjustment and implementation method of acid-base neutralization device |
| CN113877503A (en) * | 2021-10-24 | 2022-01-04 | 黑龙江赫益乳业科技有限公司 | Concentration control unit of chlorate removal equipment in emulsion |
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