CN215727954U - Sodium aluminate solution automatic titration system - Google Patents
Sodium aluminate solution automatic titration system Download PDFInfo
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- CN215727954U CN215727954U CN202122005583.5U CN202122005583U CN215727954U CN 215727954 U CN215727954 U CN 215727954U CN 202122005583 U CN202122005583 U CN 202122005583U CN 215727954 U CN215727954 U CN 215727954U
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Abstract
The utility model relates to the field of sodium aluminate solution titration equipment, in particular to an automatic titration system for sodium aluminate solution, which comprises an automatic sampling mechanism and a titration mechanism: the automatic sample introduction mechanism comprises a base, a sample turntable and a driving assembly for driving the sample turntable to rotate, the titration mechanism comprises a titration table and a reaction cup, a pipette is arranged on an upright post at the outer edge of the sample turntable on the base, and the pipette can be used for transferring sodium aluminate solution on the sample turntable and injecting the sodium aluminate solution into the reaction cup; the base both sides are equipped with a plurality of reagent bottles, and each reagent bottle is connected with the liquid pump of ration volume, and the liquid outlet of the liquid pump of ration volume is connected respectively and titrates the reagent interface on the bench, titrates the bench and still inserts and be equipped with the titration terminal point probe that stretches into in the reaction cup, titrates and install the processing electrode who is connected with titration terminal point probe in the bench. The utility model can automatically sample and titrate the sodium aluminate solution, and has high automation degree and high efficiency.
Description
Technical Field
The utility model relates to the technical field of sodium aluminate solution titration equipment, in particular to an automatic titration system for sodium aluminate solution.
Background
In an alumina production system, a sodium aluminate solution is a process product in alumina production, and index control of the sodium aluminate solution in related process links is a key of a production organization process. Caustic, alumina and total alkali contents are three important control indicators in sodium aluminate solutions. In domestic aluminum factories, the analysis of caustic alkali, alumina and total alkali content in the production process of alumina usually adopts a manual titration method. With the continuous advancement of the refinement and intelligent management of the production system, the manual titration method has the following disadvantages:
1) the endpoint is difficult to judge, the influence of the skill level of an analyst is large, and the error of an analysis result is large;
2) the manual titration analysis has many operation steps, long flow, high labor intensity and untimely analysis report.
At present, in the production control of various domestic large alumina plants, the analysis of the online continuous monitoring technology of the sodium aluminate solution mostly adopts the traditional chemical analysis method. Many studies and colleges have done on automated analysis including chemical analysis, thermal titration, potentiometric titration, conductometric thermometry and photometric titration. The sodium aluminate solution is viscous, high in concentration, high in viscosity, high in temperature and pressure, easy to hydrolyze to generate aluminum hydroxide precipitate and the like. These methods have many unsatisfactory places, and do not realize automatic analysis in a true sense.
With the continuous and automatic level of the alumina industry being improved, the traditional manual analysis operation can not meet the requirement of automatic control of the current production process, so that an automatic titration system of sodium solution is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides an automatic titration system for sodium aluminate solution, which can automatically sample and titrate the sodium aluminate solution, and has high automation degree and high efficiency.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: an automatic titration system for sodium aluminate solution comprises an automatic sample introduction mechanism and a titration mechanism;
the automatic sample feeding mechanism comprises a base, a sample turntable arranged on the base and a driving assembly arranged on the base and used for driving the sample turntable to rotate, wherein a plurality of first sample holes are uniformly distributed on the sample turntable along the circumference;
the base is provided with an upright post at the outer edge of the sample turntable, the titration mechanism is arranged on one side of the upright post and comprises a titration table and a reaction cup, the titration table is connected with a support table arranged on the base through a support rod, the reaction cup is arranged on the support table, the upper end of the reaction cup is connected with the bottom of the titration table, the titration table is provided with a solution injection hole communicated with the interior of the reaction cup, one side of the upright post, which is close to the sample turntable, is provided with a pipette, the top end of the pipette is connected with a liquid pump, the upright post is provided with a rotating mechanism driving the pipette to rotate horizontally, and the upright post is internally provided with a lifting mechanism driving the rotating mechanism to move up and down, so that the pipette can be butted with the solution injection hole through vertical displacement and horizontal displacement after sample solution is taken by the pipette; a plurality of reagent bottles are arranged on two sides of the base, a plurality of reagent ports communicated with the interior of the reaction cup are correspondingly arranged on the titration platform, a quantitative liquid taking pump communicated with the interior of each reagent bottle is respectively arranged at the bottle mouth of each reagent bottle, and a liquid outlet of each quantitative liquid taking pump is connected with each reagent port; a titration end point probe extending into the reaction cup is further inserted on the titration table, and a processing electrode connected with the titration end point probe is installed in the titration table.
Furthermore, a pure water bottle is further arranged on one side of the base, a pure water interface communicated to the interior of the reaction cup is correspondingly arranged on the titration table, the pure water bottle is connected with a pure water inlet of the liquid pump, and a pure water outlet of the liquid pump is respectively connected with the pure water interface and the liquid transfer pipe.
Furthermore, the reaction cup further comprises an electromagnetic stirrer, wherein the electromagnetic stirrer comprises a magnetic table and magnetons, the magnetic table is installed on the supporting table, the reaction cup is arranged on the magnetic table, and the magnetons are placed in the reaction cup.
Furthermore, the titration table is further provided with a waste liquid interface communicated to the inside of the reaction cup, the waste liquid interface is connected with a waste liquid inlet of the liquid pump, and a waste liquid outlet of the liquid pump is connected with a waste liquid bottle.
Further, still include water bath heating device, water bath heating device includes water circulation heating device and water bath, the water bath is cyclic annular and sets up on the base and is located sample carousel below, the top of water bath rotates and is provided with the top cap, be equipped with on the top cap with the second sample hole of first sample hole one-to-one, water circulation heating device's delivery port pass through outlet conduit with the water inlet of water bath is connected, water circulation heating device's water inlet pass through inlet conduit with the delivery port of water bath is connected.
Furthermore, drive assembly includes pivot and first motor, first motor is installed in the base, the one end of pivot is connected first motor, the other end of pivot through set firmly in its outside link with the sample carousel is connected.
Furthermore, the rotating mechanism comprises a support, a second motor, a rotating table and a rotating rod which is integrally formed on the circumferential side surface of the rotating table, the support is arranged on the upright column and is close to one side of the sample rotating table, a slide way for the support to slide is arranged on the upright column along the vertical direction, and one side of the support, which is positioned in the slide way, is connected with the lifting mechanism; the second motor is installed the support top, the output shaft of second motor passes the support with be located the revolving stage of support bottom is connected, the end connection of bull stick the pipette.
Further, elevating system is including installing gear, rack and drive gear pivoted third motor in the stand, the output of third motor with the gear connection, the gear with rack toothing, the support be located in the slide one side with rack connection.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the automatic titration system of the sodium aluminate solution comprises an automatic sampling mechanism and a titration mechanism, wherein the automatic sampling mechanism comprises a base, a sample turntable and a driving assembly for driving the sample turntable to rotate, the titration mechanism comprises a titration table, a reaction cup and a pipette, a plurality of reagent bottles are arranged on two sides of the base, each reagent bottle is connected with a quantitative liquid taking pump, a solution injection hole and a reagent interface are arranged on the titration table, the automatic sampling mechanism can drive the sample turntable to rotate through the driving assembly so that the sodium aluminate solution on the sample turntable can be automatically sampled in sequence, the pipette can automatically take the sodium aluminate solution on the sample turntable and butt-joint the sodium aluminate solution with the solution injection hole through a lifting mechanism and a rotating mechanism and then inject the sodium aluminate solution into the reaction cup, each quantitative liquid taking pump respectively controls titration reagents in each reagent bottle to sequentially titrate through the reagent interfaces until the reaction cup reacts with the sodium aluminate solution, and a titration end point is determined by utilizing the electrode potential and pH value change of the titration end point probe, and (3) finishing titration, and determining the addition amount of the titration reagent by the quantitative liquid taking pump according to a titration end point, so as to analyze three important control indexes of caustic alkali, alumina and total alkali content in the sodium aluminate solution. The device has high automation degree and high titration efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an automatic titration system for sodium aluminate solution of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
the reference numbers in the figures are: 1-base, 2-sample turntable, 21-first sample hole, 3-upright post, 4-pipette, 5-rotating mechanism, 51-support, 52-second motor, 53-turntable, 54-rotating rod, 6-slideway, 7-titration mechanism, 71-titration table, 711-reagent interface, 712-pure water interface, 713-waste liquid interface, 714-titration end point probe, 72-reaction cup, 73-solution injection hole, 74-support rod, 75-support table, 8-automatic dilution mechanism, 81-reagent bottle, 82-quantitative liquid-taking pump, 9-water bath heating device, 91-water bath, 92-top cover, 93-second sample hole, 94-water circulation heating device, 10-liquid-taking pump, 11-pure water bottle, 12-driving component, 121-rotating shaft, 122-connecting frame, 13-waste water bottle and 14-magnetic table.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
As shown in fig. 1 and fig. 2, an automatic titration system for sodium aluminate solution comprises an automatic sample feeding mechanism and a titration mechanism.
The automatic sampling mechanism comprises a base 1, a sample turntable 2 arranged on the base 1 and a driving assembly 12 installed on the base 1 and used for driving the sample turntable 2 to rotate, wherein a plurality of first sample holes 21 are uniformly distributed on the sample turntable 2 along the circumference. The driving assembly 12 includes a rotating shaft 121 and a first motor (not shown), the first motor is installed in the base 1, one end of the rotating shaft 121 is connected to the first motor, and the other end of the rotating shaft 121 is connected to the sample turntable 2 through a connecting frame 122 fixedly installed at the outside of the rotating shaft. During the use, first motor drive pivot 121 rotates, makes pivot 121 pass through link 122 and drives sample carousel 2 and rotate to make the sample of placing on sample carousel 2 advance the appearance in proper order.
The base 1 is provided with a column 3 at the outer edge of the sample turntable 2, the titration mechanism 7 is arranged at one side of the column 3, the titration mechanism 7 comprises a titration table 71 and a reaction cup 72, the titration table 71 is connected with a support table 75 arranged on the base 1 through a support rod 74, the reaction cup 72 is arranged on the support table 75, the upper end of the reaction cup is connected with the bottom of the titration table 71, a solution injection hole 73 communicated with the interior of the reaction cup 72 is arranged on the titration table 71, a pipette 4 is arranged on one side of the upright post 3 close to the sample turntable 2, the top end of the pipette 4 is connected with a liquid pump 10, the upright post 3 is provided with a rotating mechanism 5 which drives the pipette 4 to rotate horizontally, a lifting mechanism which drives the rotating mechanism 5 to move up and down is arranged in the upright post 3, so that the pipette 4 can be connected to the inlet of the solution injection tube 73 by up-and-down displacement and horizontal displacement after removing the sample solution; the device comprises a base and is characterized in that a plurality of reagent bottles 81 are arranged on two sides of the base 1, quantitative liquid taking pumps 82 communicated with the inside of the reagent bottles 81 are respectively arranged at bottle mouths of the reagent bottles 81, a plurality of reagent interfaces 711 communicated with the inside of a reaction cup 72 are correspondingly arranged on a titration table 71, and a liquid outlet of each quantitative liquid taking pump 82 is respectively communicated with each reagent interface 711. In this embodiment, three reagent bottles 81 are provided, and three corresponding quantitative liquid-taking pumps 82 and three corresponding reagent ports 711 are provided. Different reagents can be respectively quantitatively drawn into the reaction cup 72 by the quantitative liquid drawing pump 82. A titration end point probe 714 extending into the reaction cup 72 is further inserted into the titration table 71, and a processing electrode (not shown) connected with the titration end point probe 714 is installed in the titration table 71. In use, the treatment electrode is connected to a computer host, and the titration endpoint probe 714 determines the titration endpoint by measuring the electrode potential and pH change of the solution.
Preferably, the rotating mechanism 5 includes a bracket 51, a second motor 52, a rotating table 53 and a rotating rod 54 integrally formed on the circumferential side surface of the rotating table 53, the bracket 51 is disposed on the upright 3 and close to one side of the sample turntable 2, a slide 6 for the bracket 51 to slide is disposed on the upright 3 along the vertical direction, and one side of the bracket 51 located in the slide 6 is connected to the lifting mechanism; the second motor 52 is mounted on the top of the bracket 51, the output shaft of the second motor 52 passes through the bracket 51 and is connected with a rotating platform 53 at the bottom of the bracket 51, and the end of the rotating rod 54 is connected with the pipette 4. Preferably, the lifting mechanism comprises a gear (not shown), a rack (not shown) and a third motor (not shown) which are arranged in the upright post 3 and drive the gear to rotate, the output end of the third motor is connected with the gear, the gear is meshed with the rack, and the bracket 51 is positioned on one side in the slide 6 and connected with the rack. After the liquid suction pipe 4 is used for removing liquid, the gear is driven by the third motor to rotate to drive the rack to move, so that the bracket 51 drives the second motor 52, the rotating platform 53, the rotating rod 54 and the liquid suction pipe 4 to move upwards together along the slide 6 to a required height, the second motor 52 drives the rotating platform 53 to rotate, the rotating platform 53 drives the liquid suction pipe 4 to horizontally rotate to a position corresponding to the inlet of the solution injection hole 73, and the liquid suction pipe 4 is driven by the third motor to descend to be in butt joint with the inlet of the solution injection hole 73.
A pure water bottle 11 is further arranged on one side of the base, a pure water interface 712 communicated to the interior of the reaction cup 72 is correspondingly arranged on the titration table 71, the pure water bottle 11 is connected with a pure water inlet of the liquid pump 10, and a pure water outlet of the liquid pump 10 is respectively connected with the pure water interface 712 and the pipette 4. In the titration process, if the concentration of the sodium aluminate solution is too high and the sodium aluminate solution is directly titrated without dilution, a large amount of reagents need to be consumed, the titration time is prolonged, a larger reaction container needs to be designed, and the working efficiency is reduced. Through design water bottle 11 and make it communicate to reaction cup 72 through drawing liquid pump 10, can realize the automatic dilution of the solution in the reaction cup 72, reduce the concentration of solution, reduce the consumption of reagent, improve titration efficiency, water bottle 11 still connects pipette 4 through drawing liquid pump 10 in addition, can wash pipette 4 after moving the liquid, is convenient for carry out the liquid-transfering of second group's sample.
In order to further improve the uniformity of the titration process, an electromagnetic stirrer is further included, the electromagnetic stirrer comprises a magnetic force table 14 and a magnet (not shown), the magnetic force table 14 is mounted on the support table 75, the reaction cup 72 is arranged on the magnetic force table 14, and the magnet is placed in the reaction cup 72. The solution in the reaction cup 72 can be stirred by controlling the rotation of the magnetons in the reaction cup 72 through the magnetic force table 14, and the magnetons in the reaction cup 72 are always in a stirring state in the whole dilution and titration processes, so that the effects of continuously mixing the solution or accelerating the reaction process are achieved.
The titration table 71 is further provided with a waste liquid interface 713 communicated with the interior of the reaction cup 72, the waste liquid interface 713 is connected with a waste liquid inlet of the liquid pump 10, and a waste liquid outlet of the liquid pump 10 is connected with a waste liquid bottle 13. The liquid pump 10 can be used for pumping the titrated waste liquid in the reaction cup 72 and the waste liquid after cleaning the reaction cup 72, so that the titration work of the next group of samples is facilitated, and the efficiency is improved.
In order to prevent the sodium aluminate solution on the sample carousel 2 from crystallizing at low temperature and separating out and guaranteeing the uniformity of temperature, still include water bath heating device 9, water bath heating device includes water circulation heating device 94 and water bath 91, water bath 91 is the cyclic annular and sets up on base 1 and is located sample carousel 2 below, the top of water bath 91 is rotated and is provided with top cap 92, be equipped with on top cap 92 with the second sample hole 93 of first sample hole 21 one-to-one, the delivery port of water circulation heating device 94 pass through outlet conduit with the water inlet of water bath 91 is connected, the water inlet of water circulation heating device 94 pass through the inlet channel with the delivery port of water bath 91 is connected. Water is heated in the water circulation heating device 94 and then pumped into the water bath 91 to heat the sodium aluminate solution sample on the sample turntable 2, and then the water is circulated back to the water circulation heating device 94 to heat the sample in a water bath. Through heating the sodium aluminate solution and keeping warm, prevent that it from crystallizing easily at low temperature and separating out, because the temperature has an influence to the solution volume simultaneously, if move the solution under different temperatures, the solution volume that obtains is different, adopts water bath heating to guarantee that the sodium aluminate solution can move under unified temperature and get, improves the degree of accuracy of test.
The working principle of the utility model is as follows:
the first step is as follows: placing a test tube containing sodium aluminate solution in a first sample hole 21 of a sample turntable 2, enabling the lower end of the test tube to penetrate through a second sample hole 93 and extend into a water bath 91, heating water to a set temperature by a water circulation heating device 94, pumping the water into the water bath 91, and heating the sodium aluminate solution contained in the test tube;
the second step is that: the liquid pump 10 firstly pumps 80ml of pure water from the pure water bottle 11 into the reaction cup 72;
the third step: the pipette 4 descends into a test tube on the sample turntable 2 below the pipette under the action of the lifting mechanism, the sodium aluminate solution is extracted through the liquid pumping pump 10, the pipette is driven by the lifting mechanism to ascend, the pipette 4 horizontally rotates under the action of the rotating mechanism 5, the pipette 4 moves downwards under the action of the lifting mechanism to be in butt joint with the solution injection hole 73, the electromagnetic stirrer is started simultaneously, the liquid pumping pump 10 controls the sodium aluminate solution in the pipette 4 to be injected into the reaction cup 72 through the solution injection hole 73 while stirring, the sodium aluminate solution in the reaction cup 72 is stirred and diluted, after the pipette is injected, the liquid pumping pump 10 switches a passage, 20ml of pure water is pumped to flush the pipette 4, and all the solution attached to the inner wall of the pipette 4 is flushed;
the fourth step: in the stirring process, the titration reagents in the reagent bottles 81 are sequentially titrated gradually into the reaction cups 72 to react with the sodium aluminate solution under the action of the quantitative liquid measuring pumps 82, the titration end point is determined by measuring the electrode potential and the pH value change of the solution by using the titration end point probe 714, the titration work is completed, and the quantitative liquid measuring pumps 82 can determine the addition amount of the titration reagents according to the titration end point, so that three important control indexes of the caustic alkali, the alumina and the total alkali content in the sodium aluminate solution are analyzed;
the fifth step: after the titration is finished, the liquid pump 10 pumps the waste liquid in the reaction cup 72 through the waste liquid pumping pipeline and discharges the waste liquid into the waste liquid bottle 13, the liquid pump 10 pumps the water in the pure water bottle 11 through the water pipeline to clean the reaction cup 72, and after the cleaning, the liquid pump 10 pumps the cleaning waste liquid in the reaction cup 72 through the waste liquid pumping pipeline again and discharges the cleaning waste liquid into the waste liquid bottle 13, so that the cleaning work is finished;
and a sixth step: the pipette 4 is reset, the sample turntable 2 is driven by the driving component 12 to rotate to the next group of samples, and then the titration of the next group of sodium aluminate solution samples is repeated.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (8)
1. A sodium aluminate solution automatic titration system which characterized in that: comprises an automatic sample introduction mechanism and a titration mechanism;
the automatic sample feeding mechanism comprises a base, a sample turntable arranged on the base and a driving assembly arranged on the base and used for driving the sample turntable to rotate, wherein a plurality of first sample holes are uniformly distributed on the sample turntable along the circumference;
the base is provided with an upright post at the outer edge of the sample turntable, the titration mechanism is arranged on one side of the upright post and comprises a titration table and a reaction cup, the titration table is connected with a support table arranged on the base through a support rod, the reaction cup is arranged on the support table, the upper end of the reaction cup is connected with the bottom of the titration table, the titration table is provided with a solution injection hole communicated with the interior of the reaction cup, one side of the upright post, which is close to the sample turntable, is provided with a pipette, the top end of the pipette is connected with a liquid pump, the upright post is provided with a rotating mechanism driving the pipette to rotate horizontally, and the upright post is internally provided with a lifting mechanism driving the rotating mechanism to move up and down, so that the pipette can be butted with the solution injection hole through vertical displacement and horizontal displacement after sample solution is taken by the pipette; a plurality of reagent bottles are arranged on two sides of the base, a plurality of reagent ports communicated with the interior of the reaction cup are correspondingly arranged on the titration platform, a quantitative liquid taking pump communicated with the interior of each reagent bottle is respectively arranged at the bottle mouth of each reagent bottle, and a liquid outlet of each quantitative liquid taking pump is connected with each reagent port; a titration end point probe extending into the reaction cup is further inserted on the titration table, and a processing electrode connected with the titration end point probe is installed in the titration table.
2. The automatic titration system for sodium aluminate solution according to claim 1, wherein: and a pure water bottle is further arranged on one side of the base, a pure water interface communicated to the interior of the reaction cup is correspondingly arranged on the titration table, the pure water bottle is connected with a pure water inlet of the liquid pump, and a pure water outlet of the liquid pump is respectively connected with the pure water interface and the pipette.
3. The automatic titration system for sodium aluminate solution according to claim 1, wherein: the reaction cup is characterized by further comprising an electromagnetic stirrer, wherein the electromagnetic stirrer comprises a magnetic table and magnetons, the magnetic table is installed on the supporting table, the reaction cup is arranged on the magnetic table, and the magnetons are placed in the reaction cup.
4. The automatic titration system for sodium aluminate solution according to claim 2 or 3, wherein: the titration table is further provided with a waste liquid interface communicated to the inside of the reaction cup, the waste liquid interface is connected with a waste liquid inlet of the liquid pump, and a waste liquid outlet of the liquid pump is connected with a waste liquid bottle.
5. The automatic titration system for sodium aluminate solution according to claim 1, wherein: still include water bath heating device, water bath heating device includes water circulation heating device and water bath, the water bath is cyclic annular and sets up on the base and is located sample carousel below, the top of water bath is rotated and is provided with the top cap, be equipped with on the top cap with the second sample hole of first sample hole one-to-one, water circulation heating device's delivery port pass through outlet conduit with the water inlet of water bath is connected, water circulation heating device's water inlet pass through inlet conduit with the delivery port of water bath is connected.
6. The automatic titration system for sodium aluminate solution according to claim 1, wherein: the drive assembly comprises a rotating shaft and a first motor, the first motor is installed in the base, one end of the rotating shaft is connected with the first motor, and the other end of the rotating shaft is connected with the sample turntable through a connecting frame fixedly arranged outside the rotating shaft.
7. The automatic titration system for sodium aluminate solution according to claim 1, wherein: the rotating mechanism comprises a support, a second motor, a rotating table and a rotating rod which is integrally formed on the circumferential side surface of the rotating table, the support is arranged on the upright column and is close to one side of the sample rotating disc, a slide way for the support to slide is arranged on the upright column along the vertical direction, and one side of the support, which is positioned in the slide way, is connected with the lifting mechanism; the second motor is installed the support top, the output shaft of second motor passes the support with be located the revolving stage of support bottom is connected, the end connection of bull stick the pipette.
8. The automatic titration system for sodium aluminate solution according to claim 7, wherein: elevating system is including installing gear, rack and drive gear pivoted third motor in the stand, the output of third motor with gear connection, the gear with rack toothing, the support be located in the slide one side with rack connection.
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| CN202122005583.5U CN215727954U (en) | 2021-08-24 | 2021-08-24 | Sodium aluminate solution automatic titration system |
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| CN202122005583.5U CN215727954U (en) | 2021-08-24 | 2021-08-24 | Sodium aluminate solution automatic titration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114924029A (en) * | 2022-07-14 | 2022-08-19 | 广东省有色工业建筑质量检测站有限公司 | Automatic titration system and implementation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114924029A (en) * | 2022-07-14 | 2022-08-19 | 广东省有色工业建筑质量检测站有限公司 | Automatic titration system and implementation method thereof |
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