CN103011082A - Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant - Google Patents
Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant Download PDFInfo
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- CN103011082A CN103011082A CN2012105863126A CN201210586312A CN103011082A CN 103011082 A CN103011082 A CN 103011082A CN 2012105863126 A CN2012105863126 A CN 2012105863126A CN 201210586312 A CN201210586312 A CN 201210586312A CN 103011082 A CN103011082 A CN 103011082A
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Abstract
The invention provides an automatic dosing method and device for hydrochloric acid regeneration desilication flocculant. The method comprises the following steps: collecting the actual volume flow rate of waste acid, the pH value of the waste acid, the temperature of the waste acid and the actual dosing volume flow rate of flocculant; according to the target concentration of the flocculant in a flocculation tank and the collected actual volume flow rate of waste acid, pH value of the waste acid, temperature of the waste acid and actual dosing volume flow rate of the flocculant, calculating the required dosing volume flow rate of the flocculant; and then, comparing the required dosing volume flow rate of the flocculant and the actual dosing volume flow rate of the flocculant, controlling the rotation speed of a flocculant dosing pump to enable the two dosing volume flow rates to be the same if the two dosing volume flow rates are different, thereby realizing the automatic control and real-time regulation on the dosage of the flocculant. Thus, the problems of oversized or undersized flocculant dosage, unbalanced flocculant dosing concentration, untimely concentration regulation and the like caused by the existing manual intervention control are avoided.
Description
Technical field
The present invention relates to regeneration of hydrochloric acid desiliconization automatic flocculant addition method and device.
Background technology
At present, the general polyacrylamide that adopts flocculates to the spent acid after the neutralization as flocculation agent in the desilication process of regeneration of hydrochloric acid, and the rapidly effective sedimentation of colloidal attitude ironic hydroxide of having adsorbed simultaneously a large amount of silicon-dioxide forms mud.Flocculation agent is to be formed by powdered polypropylene acid amides and de-salted water configuration, and dosage is the percentage of weight at 5-20ppm(ppm generally, ppm=mg/kg=mg/L) does not wait, and need to adjust according to the adjustment of Desiliconization Technology Parameters.The control of dosage is most important to the effect of desiliconization, directly has influence on the quality of desiliconization liquid (being the spent acid solution after the desiliconization) and the quality of subsequent regeneration explained hereafter brown iron oxide.Flocculation agent add that most what adopt is manual intervention control, but the unbalanced or concentration that the improper meeting of method causes adding concentration is adjusted untimely, cause the colloidal attitude ironic hydroxide can't sedimentation when serious, or dosage be excessive causes the problems such as the desiliconization liquid viscosity is excessive.Generally speaking, the problem that mainly has following several respects:
1, easily cause adding the unbalanced of concentration, the time low when high, colloidal attitude ironic hydroxide effect of settling is bad;
2, adding concentration adjusts untimely, not in place;
3, it is excessive to be prone to the desiliconization liquid viscosity, causes subsequent regeneration technique latch up phenomenon to occur;
4, operation is cumbersome;
Therefore, how to provide a kind of realize flocculation agent automatically, the regeneration of hydrochloric acid desiliconization automatic flocculant addition method and the device that accurately add 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 a kind of regeneration of hydrochloric acid desiliconization automatic flocculant addition method and device, solve the not enough or excessive problem that causes acid regeneration desiliconization system fluctuation of service of flocculant concentration concentration, can realize automatic, the accurately control of flocculant dosage.
To achieve the above object, the present invention adopts following technical scheme:
A kind of regeneration of hydrochloric acid desiliconization automatic flocculant addition device, be used for carrying out automatically throwing in as required of flocculation agent to the flocculation tank, described flocculation tank is communicated with by flocculation agent supply pipe and flocculation agent hold-up vessel, also be connected with a spent acid supply pipe on the described flocculation tank, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, the flocculation agent under meter, flocculant concentration meter and control unit, described spent acid under meter, spent acid pH meter and spent acid thermometer are installed on respectively on the described spent acid supply pipe, described flocculant concentration pump is installed on the described flocculation agent supply pipe, described flocculation agent under meter is installed on the described flocculation agent supply line and on the pipeline section between described flocculant concentration pump and the described flocculation tank, the flocculant concentration meter is arranged in the described flocculation tank, described control unit respectively with the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, flocculation agent under meter and flocculant concentration meter connect.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition device, the volumetric flow rate that adds of the rotating speed of described flocculant concentration pump and described flocculation agent reality is directly proportional.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition device, described flocculant concentration pump adopts variable frequency control.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition device, described flocculant concentration pump adopts horizontal mono-pump.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition device, an end of described flocculation agent supply pipe is connected in the bottom of described flocculation agent hold-up vessel, and the other end of described flocculation agent supply pipe is positioned at the top of described flocculation tank.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition device, be provided with stirring mechanism in the described flocculation tank.
The invention also discloses a kind of regeneration of hydrochloric acid desiliconization automatic flocculant addition method, comprise the steps:
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition method, adopt one to be used for the flocculation tank is carried out the automatic automatic medicine adding apparatus that adds as required flocculation agent, described flocculation tank is communicated with by flocculation agent supply pipe and flocculation agent hold-up vessel, also be connected with a spent acid supply pipe on the described flocculation tank, it is characterized in that, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, the flocculation agent under meter, flocculant concentration meter and control unit, described spent acid under meter, spent acid pH meter and spent acid thermometer are installed on respectively on the described spent acid supply pipe, described flocculant concentration pump is installed on the described flocculation agent supply pipe, described flocculation agent under meter is installed on the described flocculation agent supply line and on the pipeline section between described flocculant concentration pump and the described flocculation tank, the flocculant concentration meter is arranged in the described flocculation tank, described control unit respectively with the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, flocculation agent under meter and flocculant concentration meter connect.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition method, the volumetric flow rate that adds of the rotating speed of described flocculant concentration pump and described flocculation agent reality is directly proportional.
Preferably, in above-mentioned regeneration of hydrochloric acid desiliconization automatic flocculant addition method, described flocculant concentration pump adopts variable frequency control.
Regeneration of hydrochloric acid desiliconization automatic flocculant addition method provided by the invention and device, by setting the aimed concn N of flocculation agent in the flocculation tank, and the volumetric flow rate F2 of collection spent acid reality, the pH value PH of spent acid, the temperature T of spent acid and flocculation agent reality add volumetric flow rate F1, calculate flocculation agent required add volumetric flow rate F3, if and the comparison flocculation agent required add volumetric flow rate F3 and flocculation agent reality add volumetric flow rate F1, if flocculation agent is required add volumetric flow rate F3 and flocculation agent reality to add volumetric flow rate F1 inconsistent, can come so that both are consistent by the rotating speed V of control flocculant concentration pump, thereby can realize the automatic control of flocculant dosage and in real time adjustment, avoided that existing manual intervention control causes add the density unevenness weighing apparatus or concentration is adjusted untimely problem, can't sedimentation thereby stopped to adjust the untimely colloidal attitude ironic hydroxide that causes because of flocculant dosage density unevenness weighing apparatus or concentration, also stopped to cause because flocculant dosage is excessive the excessive equipment that stops up acid regeneration that causes of desiliconization liquid (spent acid solution after the desiliconization) viscosity, the problems such as pipeline, realize the accurately in time control of the dosage of flocculation agent, the spent acid in the tank of guaranteeing to flocculate keeps the aimed concn N of flocculation agent in the required flocculation tank.In addition, regeneration of hydrochloric acid desiliconization automatic flocculant addition device, not only easy and simple to handle, maintenance of equipment convenience.Whole computation process is finished automatically by control unit, and realizes the automatic control of flocculant dosage and in real time adjustment via the control of control unit to the rotating speed of flocculant concentration pump.
To sum up, the present invention mainly has following advantage:
⑴ the aimed concn visitor of flocculation agent sets by control unit in the flocculation tank, is automatically moved by program;
⑵ the dosage of flocculation agent is controlled easily, precision high;
⑶ whole device operation is in time stable, easy and simple to handle;
⑷ overhaul of the equipments, easy to maintenance.
Description of drawings
Regeneration of hydrochloric acid desiliconization automatic flocculant addition method of the present invention and device are provided by following embodiment and accompanying drawing.
Fig. 1 is the structural representation of the regeneration of hydrochloric acid desiliconization automatic flocculant addition device of one embodiment of the invention;
Fig. 2 is the schematic flow sheet of the regeneration of hydrochloric acid desiliconization automatic flocculant addition method of one embodiment of the invention;
Among the figure, 1-flocculation tank, 2-spent acid under meter, 3-spent acid thermometer, 4-spent acid pH meter, 5-flocculation agent hold-up vessel, 6-flocculant concentration pump, 7-flocculation agent under meter, 8-spent acid source, 9-control unit, 10-stirring mechanism.
Embodiment
Below will be described in further detail regeneration of hydrochloric acid desiliconization automatic flocculant addition method of the present invention and device.
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, the regeneration of hydrochloric acid desiliconization automatic flocculant addition device that present embodiment provides, be used for automatically adding as required flocculation agent to the flocculation tank 1 that continues the spent acid after injection neutralizes, described flocculation tank 1 is communicated with by flocculation agent supply pipe (not shown) and flocculation agent hold-up vessel 5, flocculation agent is stored in the described flocculation agent hold-up vessel 5, also be connected with a spent acid supply pipe on the described flocculation tank 1, described spent acid supply pipe is connected connection with the spent acid source.
Described automatic medicine adding apparatus comprises spent acid under meter 2, spent acid pH meter 4, spent acid thermometer 3, the flocculant concentration pump, flocculation agent under meter 7, flocculant concentration meter and control unit 9, described spent acid under meter 2, spent acid pH meter 4 and spent acid thermometer 3 are installed on respectively on the described spent acid supply pipe, described flocculant concentration pump 6 is installed on the described flocculation agent supply pipe, described flocculation agent under meter 7 is installed on the described flocculation agent supply line and on the pipeline section between described flocculant concentration pump 6 and the described flocculation tank 1, the flocculant concentration meter is arranged in the described flocculation tank 1, described control unit 9 respectively with spent acid under meter 2, spent acid pH meter 4, spent acid thermometer 3, flocculant concentration pump 6, flocculation agent under meter 7 and flocculant concentration meter connect.
Can record respectively the volumetric flow rate F2 of spent acid reality, the pH value PH of spent acid, the temperature T that adds volumetric flow rate F1 and spent acid of flocculation agent reality by spent acid under meter 2, spent acid pH meter 4, flocculation agent under meter 7 and spent acid thermometer 3.Control unit 9 can according to the pH value PH of the volumetric flow rate F2 of the aimed concn N of flocculation agent and the above-mentioned spent acid reality that records in the flocculation tank 1, spent acid, flocculation agent reality add volumetric flow rate F1, can calculate flocculation agent required add volumetric flow rate F3.If flocculation agent is required add volumetric flow rate F3 and flocculation agent reality to add volumetric flow rate F1 inconsistent, can come so that both are consistent by the rotating speed of control flocculant concentration pump 6, thereby can realize the automatic control of flocculant dosage and in real time adjustment, avoided that existing manual intervention control causes add the density unevenness weighing apparatus or concentration is adjusted untimely problem, thereby stopped because of the flocculant concentration quantity not sufficient causes flocculating the tank 1 interior flocculant concentration 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, realize the accurately in time control of the dosage of flocculation agent, the flocculation agent in the tank 1 of guaranteeing to flocculate keeps required aimed concn.In addition, this regeneration of hydrochloric acid desiliconization automatic flocculant addition device, not only easy and simple to handle, maintenance of equipment convenience.
The described control unit 9 preferred programmable logic controllers (Programmable Logic Controller, PLC) that adopt.
Better, in the present embodiment, the volumetric flow rate that adds of the rotating speed of described flocculant concentration pump 6 and described flocculation agent reality is directly proportional, that is to say described flocculant concentration pump 6 adopt be directly proportional with the rotating speed of flocculant concentration pump 6 quantitatively add pump.Thereby by the rotating speed of control flocculant concentration pump 6, the volumetric flow rate that adds that just can control flocculation agent reality is flocculant dosage.
Better, described flocculant concentration pump 6 adopts variable frequency control.Adopt speed control by frequency variation to realize that constant voltage is for flocculation agent, compare for flocculation agent 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, the mean speed owing to flocculant concentration pump 6 has reduced, thereby can prolong the work-ing life of flocculant concentration pump 6; 3, the water hammer effect in the time of can eliminating starting and shutdown.
Better, described flocculant concentration pump 6 adopts horizontal mono-pump (claiming again the progression cavity pump).The known technology of structural formula this area of horizontal mono-pump, this does not specifically launch again.
Better, described flocculant concentration pump 6 arranges two altogether, and i.e. supply is stablized, continued to add to the using and the reserved with what realize flocculation agent.
Better, an end of described flocculation agent supply pipe is connected in the bottom of described flocculation agent hold-up vessel 5, thereby can take full advantage of the flocculation agent in the flocculation agent hold-up vessel 5.
Better, the other end of described flocculation agent supply pipe is positioned at the top of described flocculation tank 1, can utilize the deadweight of flocculation agent, is added in the flocculation tank 1.
Better, be provided with stirring mechanism 10 in the described flocculation tank 1, can be so that spent acid and fully mixing of flocculation agent realization in flocculation tank 1 improves both hybrid reaction effects by stirring mechanism 10.
Embodiment two
See also Fig. 2, present embodiment provides a kind of regeneration of hydrochloric acid desiliconization automatic flocculant addition method, from the spent acid of process upstream section (spent acid neutralization tank) with spent acid volumetric flow rate F2(m3/h) flow in the flocculation tank 1, described Automatic Dosing method comprises the steps:
Described Automatic Dosing method can adopt the one described regeneration of hydrochloric acid desiliconization automatic flocculant addition device such as embodiment, please continue to consult Fig. 1.
In above-mentioned step 1, can set by described control unit 9 aimed concn of flocculation agent in the flocculation tank, gather the volumetric flow rate of spent acid reality and be sent to described control unit 9 by described spent acid under meter 2, gathering the pH value of spent acid and be sent in the described control unit 9(present embodiment by described spent acid pH meter 4 is programmable logic controller), gather the temperature of spent acid and be sent to described control unit 9 by described spent acid thermometer 3, and gather adding volumetric flow rate and being sent to described control unit 9 of flocculation agent reality by flocculation agent under meter 7;
In described step 2, described control unit 9 according to described dosage calculation formula calculate flocculation agent required add volumetric flow rate.
In described step 3, described control unit 9 adds volumetric flow rate F1 and the required comparable situation that adds volumetric flow rate F3 of flocculation agent according to flocculation agent reality, rotating speed by adjusting flocculant concentration pump 6 so that flocculation agent reality add volumetric flow rate F1 equal flocculation agent required add volumetric flow rate F3, namely realize flocculation agent dosage automatically, accurately control.
In sum, regeneration of hydrochloric acid desiliconization automatic flocculant addition method provided by the invention and device, by setting the aimed concn N of flocculation agent in the flocculation tank, and the volumetric flow rate F2 of collection spent acid reality, the pH value PH of spent acid, the temperature T of spent acid and flocculation agent reality add volumetric flow rate F1, calculate flocculation agent required add volumetric flow rate F3, if and the comparison flocculation agent required add volumetric flow rate F3 and flocculation agent reality add volumetric flow rate F1, if flocculation agent is required add volumetric flow rate F3 and flocculation agent reality to add volumetric flow rate F1 inconsistent, can come so that both are consistent by the rotating speed V of control flocculant concentration pump, thereby can realize the automatic control of flocculant dosage and in real time adjustment, avoided that existing manual intervention control causes add the density unevenness weighing apparatus or concentration is adjusted untimely problem, can't sedimentation thereby stopped to adjust the untimely colloidal attitude ironic hydroxide that causes because of flocculant dosage density unevenness weighing apparatus or concentration, also stopped to cause because flocculant dosage is excessive the excessive equipment that stops up acid regeneration that causes of desiliconization liquid (spent acid solution after the desiliconization) viscosity, the problems such as pipeline, realize the accurately in time control of the dosage of flocculation agent, the spent acid in the tank of guaranteeing to flocculate keeps the aimed concn N of flocculation agent in the required flocculation tank.In addition, regeneration of hydrochloric acid desiliconization automatic flocculant addition device, not only easy and simple to handle, maintenance of equipment convenience.Whole computation process is finished automatically by control unit, and realizes the automatic control of flocculant dosage and in real time adjustment via the control of control unit to the rotating speed of flocculant concentration pump.
To sum up, the present invention mainly has following advantage:
⑴ the aimed concn visitor of flocculation agent sets by control unit in the flocculation tank, is automatically moved by program;
⑵ the dosage of flocculation agent is controlled easily, precision high;
⑶ whole device operation is in time stable, easy and simple to handle;
⑷ overhaul of the equipments, easy to maintenance.
Claims (10)
1. regeneration of hydrochloric acid desiliconization automatic flocculant addition device, be used for carrying out automatically throwing in as required of flocculation agent to the flocculation tank, described flocculation tank is communicated with by flocculation agent supply pipe and flocculation agent hold-up vessel, also be connected with a spent acid supply pipe on the described flocculation tank, it is characterized in that, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, the flocculation agent under meter, flocculant concentration meter and control unit, described spent acid under meter, spent acid pH meter and spent acid thermometer are installed on respectively on the described spent acid supply pipe, described flocculant concentration pump is installed on the described flocculation agent supply pipe, described flocculation agent under meter is installed on the described flocculation agent supply line and on the pipeline section between described flocculant concentration pump and the described flocculation tank, the flocculant concentration meter is arranged in the described flocculation tank, described control unit respectively with the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, flocculation agent under meter and flocculant concentration meter connect.
2. regeneration of hydrochloric acid desiliconization automatic flocculant addition device according to claim 1 is characterized in that the volumetric flow rate that adds of the rotating speed of described flocculant concentration pump and described flocculation agent reality is directly proportional.
3. regeneration of hydrochloric acid desiliconization automatic flocculant addition device according to claim 2 is characterized in that, described flocculant concentration pump adopts variable frequency control.
4. regeneration of hydrochloric acid desiliconization automatic flocculant addition device according to claim 2 is characterized in that described flocculant concentration pump adopts horizontal mono-pump.
5. regeneration of hydrochloric acid desiliconization automatic flocculant addition device according to claim 1, it is characterized in that, one end of described flocculation agent supply pipe is connected in the bottom of described flocculation agent hold-up vessel, and the other end of described flocculation agent supply pipe is positioned at the top of described flocculation tank.
6. regeneration of hydrochloric acid desiliconization automatic flocculant addition device according to claim 1 is characterized in that, is provided with stirring mechanism in the described flocculation tank.
7. a regeneration of hydrochloric acid desiliconization automatic flocculant addition method is characterized in that, comprises the steps:
Step 1 is set the aimed concn of flocculation agent in the flocculation tank, and gathers the volumetric flow rate that adds of the temperature of pH value, spent acid of volumetric flow rate, the spent acid of spent acid reality and flocculation agent reality;
Step 2, by the dosage calculation formula calculate flocculation agent required add volumetric flow rate, described dosage calculation formula is F3=(N/100) * F2 * (T/40) * [(PH/4.2) * 1.05], in the formula: F1-flocculation agent reality add volumetric flow rate, the volumetric flow rate of F2-spent acid, F3-flocculation agent is required adds volumetric flow rate, the aimed concn of flocculation agent in N-flocculation tank, the temperature of T-spent acid, the pH value of PH-spent acid, the rotating speed of V-flocculant concentration pump;
Step 3 according to the rotating speed of the required comparable situation control flocculant concentration pump that adds volumetric flow rate that adds volumetric flow rate and flocculation agent reality of flocculation agent, so that both are identical, when F1＞F3, reduces the rotating speed V of flocculant concentration pump until F1=F3; When F1＜F3, increase the rotating speed V of flocculant concentration pump until F1=F3, thereby realize flocculant dosage automatically, accurately control.
8. regeneration of hydrochloric acid desiliconization automatic flocculant addition method according to claim 7, it is characterized in that, adopt one to be used for the flocculation tank is carried out the automatic automatic medicine adding apparatus that adds as required flocculation agent, described flocculation tank is communicated with by flocculation agent supply pipe and flocculation agent hold-up vessel, also be connected with a spent acid supply pipe on the described flocculation tank, it is characterized in that, described automatic medicine adding apparatus comprises the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, the flocculation agent under meter, flocculant concentration meter and control unit, described spent acid under meter, spent acid pH meter and spent acid thermometer are installed on respectively on the described spent acid supply pipe, described flocculant concentration pump is installed on the described flocculation agent supply pipe, described flocculation agent under meter is installed on the described flocculation agent supply line and on the pipeline section between described flocculant concentration pump and the described flocculation tank, the flocculant concentration meter is arranged in the described flocculation tank, described control unit respectively with the spent acid under meter, the spent acid pH meter, the spent acid thermometer, the flocculant concentration pump, flocculation agent under meter and flocculant concentration meter connect.
9. regeneration of hydrochloric acid desiliconization automatic flocculant addition method according to claim 8 is characterized in that the volumetric flow rate that adds of the rotating speed of described flocculant concentration pump and described flocculation agent reality is directly proportional.
10. regeneration of hydrochloric acid desiliconization automatic flocculant addition method according to claim 9 is characterized in that, described flocculant concentration pump adopts variable frequency control.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210586312.6A CN103011082B (en) | 2012-12-26 | 2012-12-26 | Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant |
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| CN201210586312.6A CN103011082B (en) | 2012-12-26 | 2012-12-26 | Automatic dosing method and device for hydrochloric acid regeneration desilication flocculant |
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| CN103011082A true CN103011082A (en) | 2013-04-03 |
| CN103011082B CN103011082B (en) | 2014-11-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109111083A (en) * | 2018-09-18 | 2019-01-01 | 北京环球中科水务科技有限公司 | A kind of medicament automatic feeding Reaction Control Assembly and control method for sludge dewatering |
| CN112921338A (en) * | 2021-01-22 | 2021-06-08 | 阳光电源股份有限公司 | Electrolytic hydrogen production device and electrolyte supplementing method |
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| CN2880793Y (en) * | 2006-03-14 | 2007-03-21 | 鞍山瑞野实业有限公司 | Hydrochloric acid regenerating device |
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| CN2880793Y (en) * | 2006-03-14 | 2007-03-21 | 鞍山瑞野实业有限公司 | Hydrochloric acid regenerating device |
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| CN109111083A (en) * | 2018-09-18 | 2019-01-01 | 北京环球中科水务科技有限公司 | A kind of medicament automatic feeding Reaction Control Assembly and control method for sludge dewatering |
| CN112921338A (en) * | 2021-01-22 | 2021-06-08 | 阳光电源股份有限公司 | Electrolytic hydrogen production device and electrolyte supplementing method |
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| Publication number | Publication date |
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| CN103011082B (en) | 2014-11-26 |
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