Device for measuring lead by anodic stripping voltammetry

Abstract

The utility model discloses a device for measuring lead by anodic stripping voltammetry, which comprises an experimental mechanism and a measuring mechanism, the experiment mechanism comprises a bottom plate, a plurality of rotating discs movably embedded in the top of the bottom plate, two guide rods connected with the tops of the rotating discs, a sliding frame connected between the two guide rods in a sliding mode, a bracket installed on one side of the sliding frame, a liquid cup movably penetrating through the bottom of the bracket, and a valve connected with the bottom end of the liquid cup. The measuring mechanism comprises a titration cup attached to the top of the bottom plate, a plurality of droppers attached to the top of the titration cup, and liquid bags connected with the rear ends of the droppers. According to the utility model, the plurality of liquid cups can automatically slide to the bottom end of the guide rod under the influence of self weight after being used, so that the gravity center of the device is reduced, and the size of the bottom plate is increased, so that the device is not easy to topple over, and safety accidents are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to lead content determination technical field, concretely is a kind of anodic stripping voltammetry determination lead device. BACKGROUND

[0002] Anodic stripping voltammetry, under certain potential, make the metal ion to be measured partially reduced into metal and dissolved into microelectrode or precipitate on the surface of electrode, then apply reverse voltage to electrode, make the metal on microelectrode oxidize and produce oxidation current, and the voltammetry of the current-voltage curve of oxidation process is analyzed.

[0003] The application number CN201921569010.1 discloses a kind of determination device of lead content in lead concentrate, including fixed support frame, dissolving cup, sedimentation cup, filter funnel, waste liquid cup, indicator dropper, buffer solution dropper, titration solution dropper and titration cup etc.Structure.The utility model belongs to lead content determination instrument technical field, specifically a kind of determination device of lead content in lead concentrate can make lead content determination cumbersome complex process simplify, improve the determination speed of operator, with practical value.The specific use of the application, dissolving cup, sedimentation cup, filter funnel, waste liquid cup are arranged vertically, resulting in the center of the whole device is higher, plus the fixed support frame is narrow in size, resulting in the device is used, it is easy to tip over, then cause safety accident. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in prior art or related art.

[0005] To this end, the technical scheme adopted by the utility model is as follows:

[0006] An anodic stripping voltammetry determination lead device, including experimental mechanism and determination mechanism, the experimental mechanism includes bottom plate, a plurality of rotating discs movably embedded in the top of the bottom plate, two guide rods connected with the top of the rotating disc, a sliding frame slidingly connected between the two guide rods, a bracket installed on one side of the sliding frame, a liquid cup movably penetrating the bottom of the bracket, and a valve connected with the bottom end of the liquid cup, a determination mechanism, the determination mechanism includes a titration cup attached to the top of the bottom plate, a plurality of droppers attached to the top of the titration cup, and a liquid capsule connected with the rear end of the dropper.

[0007] By adopting the above technical scheme, after use, a plurality of liquid cups will automatically slide to the bottom end of the guide rod due to their own weight, which reduces the center of gravity of the device, and increases the size of the bottom plate, so that the device is not easy to tip over, preventing safety accidents.

[0008] In a preferred example, the utility model can be further configured as: a plurality of rotating discs are arranged in a matrix, and the titration cup is located between the plurality of rotating discs.

[0009] The utility model discloses in a preferable example can be further configured as: the sliding frame is by the lifting plate and U-shaped board constitute, the U-shaped board installs in the lifting plate one side, the lifting plate sliding connection between two guide bars.

[0010] The utility model discloses in a preferable example can be further configured as: the bracket is by the cross bar and the ring of holding up, the cross bar transverse sliding penetrates U-shaped board.

[0011] The utility model discloses in a preferable example can be further configured as: multiple liquid cups are respectively dissolved cup, sedimentation cup, filter cup and waste liquid cup, and the dissolved cup, sedimentation cup are close to the left side of bottom plate, and the dissolved cup is located the back side of sedimentation cup, and the filter cup, waste liquid cup are close to the right side of bottom plate, and the filter cup is located the back side of waste liquid cup.

[0012] The utility model discloses in a preferable example can be further configured as: the U-shaped board inside is equipped with two lugs, and two lugs are connected with two cross bars inner ends respectively, and the diameter of lug is greater than the diameter of cross bar.

[0013] The utility model discloses in a preferable example can be further configured as: the bottom plate top is installed with the board body, and the board body is sleeved in multiple droppers outside.

[0014] Through adopting the above technical scheme, the utility model discloses the obtained beneficial effect is:

[0015] In the utility model, multiple liquid cups are automatically slipped to the guide bar bottom end after use under the influence of self weight, which reduces the gravity center of the device, and the size of the bottom plate is improved, so that the device is not easy to tip over, and safety accidents are prevented. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure perspective drawing of the utility model;

[0017] Figure 2 It is the experimental mechanism schematic drawing of the utility model;

[0018] Figure 3 It is the split schematic drawing of the experimental mechanism partial structure of the utility model;

[0019] Figure 4 It is the determination mechanism schematic drawing of the utility model;

[0020] Figure 5 It is the perspective drawing of the sliding frame and the bracket of the utility model.

[0021] Reference signs:

[0022] 100, experimental mechanism; 110, bottom plate; 120, rotating disc; 130, guide rod; 140, sliding frame; 141, lifting plate; 142, U-shaped plate; 150, bracket; 151, cross rod; 152, supporting ring; 160, liquid cup; 170, valve;

[0023] 200, measuring mechanism; 210, titration cup; 220, dropper; 230, liquid bag;

[0024] 300, convex head;

[0025] 400, plate body. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] It is understood that the above description is only exemplary and is not intended to limit the scope of the present application.

[0028] Some embodiments of the present application provide an anodic stripping voltammetry lead determination device.

[0029] Embodiment one:

[0030] In combination with Figures 1-5 As shown in the drawings, the anodic stripping voltammetry lead determination device provided by the present application comprises an experimental mechanism 100 and a measuring mechanism 200. The experimental mechanism 100 comprises a bottom plate 110, a plurality of rotating discs 120 movably embedded on the top of the bottom plate 110, two guide rods 130 connected to the top of the rotating discs 120, a sliding frame 140 slidingly connected between the two guide rods 130, a bracket 150 installed on one side of the sliding frame 140, a liquid cup 160 movably penetrating the bottom of the bracket 150, and a valve 170 connected to the bottom end of the liquid cup 160.

[0031] The measuring mechanism 200 comprises a titration cup 210 attached to the top of the bottom plate 110, a plurality of droppers 220 attached to the top of the titration cup 210, and a liquid bag 230 connected to the rear end of the droppers 220.

[0032] Further, the plurality of rotating discs 120 are arranged in a matrix, and the titration cup 210 is located between the plurality of rotating discs 120. This layout design provides conditions for distinguishing the plurality of liquid cups 160.

[0033] Further, the sliding frame 140 is composed of a lifting plate 141 and a U-shaped plate 142, the U-shaped plate 142 is installed on one side of the lifting plate 141, and the lifting plate 141 is slidingly connected between the two guide rods 130. With the structural design, the sliding frame 140 can stably support the bracket 150 and provide conditions for pulling the bracket 150.

[0034] Further, the bracket 150 is composed of a cross rod 151 and a supporting ring 152, the cross rod 151 is transversely slidingly penetrated through the U-shaped plate 142, and through the cross rod 151, the supporting ring 152 can be stably pulled outwards.

[0035] Further, the plurality of liquid cups 160 are respectively a dissolving cup, a precipitate cup, a filtering cup and a waste liquid cup, the dissolving cup and the precipitate cup are close to the left side of the bottom plate 110, the dissolving cup is located at the rear side of the precipitate cup, the filtering cup and the waste liquid cup are close to the right side of the bottom plate 110, and the filtering cup is located at the rear side of the waste liquid cup. After the plurality of liquid cups 160 are distinguished, it is convenient for the operator to use the device, and the probability of error in the experiment process is reduced.

[0036] Embodiment two:

[0037] In combination with FIGS. 1-3, Figures 1-3 and Figure 5 As shown, on the basis of the first embodiment, the U-shaped plate 142 is internally provided with two convex heads 300, the two convex heads 300 are respectively connected with the inner ends of the two cross rods 151, and the diameter of the convex head 300 is greater than that of the cross rod 151. The convex head 300 is arranged to prevent the cross rod 151 from being separated from the U-shaped plate 142.

[0038] Embodiment three:

[0039] In combination with FIGS. 1-3, Figure 1 and Figure 4 As shown in the above embodiments, the top of the bottom plate 110 is provided with a plate body 400, the plate body 400 is sleeved on the outer side of the plurality of droppers 220, and the plate body 400 is arranged to provide conditions for supporting and fixing the droppers 220.

[0040] The working principle and use process of the utility model: when the device is put into practical use, first, place lead concentrate ore in the dissolving cup, then inject excessive nitric acid and perchloric acid, then wait for the ore to dissolve, then move the indirectly connected sliding frame 140 between the dissolving cup upwards, then rotate the turntable 120 at the bottom of the sliding frame 140, so that it comes to the top of the precipitation cup, then open the valve 170 at the bottom of the dissolving cup, so that the solution in the dissolving cup flows into the precipitation cup, then add excessive sulfuric acid into the precipitation cup, fully stir, until no new precipitate is generated, then place multilayer filter paper in the funnel cup, then according to the above method, make the precipitation cup come to the top of the funnel cup, then filter the turbid liquid in the precipitation cup through the filter paper in the funnel cup, then control the funnel cup to come to the waste liquid cup, the funnel cup will filter the lead sulfate in the turbid liquid and then enter the waste liquid cup, then add distilled water into the funnel cup, replace the solution on the precipitate, then take out the filter paper, and wash the lead sulfate precipitate on the filter paper into the titration cup 210 with distilled water, then press the liquid bag 230 with dimethyl phenol orange solution, after two drops of dimethyl phenol orange solution enter the titration cup 210, press the liquid bag 230 with sodium acetate solution, then fully stir the solution in the titration cup 210, until the lead sulfate solid is completely converted into lead acetate, then press the liquid bag 230 with EDTA standard titration solution, then stir the inside of the titration cup 210 again, so that the solution in the beaker changes from color to red, then according to the consumed EDTA standard titration solution and acetic acid-sodium acetate buffer solution, the content of lead can be calculated, and according to this, the content of lead element in the original lead concentrate ore can be calculated. The multiple liquid cups 160 in the application can be flexibly lifted and lowered, effectively reducing the gravity center of the device, in addition, the size of the bottom plate 110 is increased, reducing the probability of the device falling, preventing safety accidents.

[0041] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. An apparatus for determining lead by anodic stripping voltammetry, characterized in that, Include: Experimental mechanism (100), the experimental mechanism (100) includes the bottom plate (110), the plurality of rotating discs (120) movably embedded in the top of the bottom plate (110), two guide rods (130) connected with the top of the rotating disc (120), the sliding frame (140) slidingly connected between the two guide rods (130), the bracket (150) installed on one side of the sliding frame (140), the liquid cup (160) movably penetrating the bottom of the bracket (150), the valve (170) connected with the bottom end of the liquid cup (160); Determination mechanism (200), the determination mechanism (200) includes a titration cup (210) attached to the top of the bottom plate (110), a plurality of droppers (220) attached to the top of the titration cup (210), a liquid bag (230) connected with the rear end of the dropper (220).

2. The apparatus for determination of lead by anodic stripping voltammetry according to claim 1, characterized in that, The plurality of rotating discs (120) are arranged in a matrix, and the titration cup (210) is located between the plurality of rotating discs (120).

3. The apparatus for determination of lead by anodic stripping voltammetry according to claim 1, characterized in that, The sliding frame (140) is composed of a lifting plate (141) and a U-shaped plate (142), the U-shaped plate (142) is installed on one side of the lifting plate (141), and the lifting plate (141) is slidingly connected between the two guide rods (130).

4. The apparatus for determination of lead by anodic stripping voltammetry according to claim 3, characterized in that, The bracket (150) is composed of a cross bar (151) and a support ring (152), the cross bar (151) slidingly penetrates the U-shaped plate (142).

5. The apparatus for determination of lead by anodic stripping voltammetry according to claim 1, characterized in that, The plurality of liquid cups (160) are respectively dissolution cups, precipitation cups, filtration cups and waste liquid cups, the dissolution cups and the precipitation cups are close to the left side of the bottom plate (110), the dissolution cup is located at the rear side of the precipitation cup, the filtration cup and the waste liquid cup are close to the right side of the bottom plate (110), and the filtration cup is located at the rear side of the waste liquid cup.

6. The apparatus for determination of lead by anodic stripping voltammetry according to claim 4, characterized in that, The U-shaped plate (142) is internally provided with two lugs (300), and the two lugs (300) are respectively connected with the inner ends of the two cross bars (151), the diameter of the lug (300) is greater than the diameter of the cross bar (151).

7. The apparatus for determination of lead by anodic stripping voltammetry according to claim 1, characterized in that, The top of the bottom plate (110) is provided with a plate body (400), and the plate body (400) is sleeved on the outer side of the plurality of droppers (220).

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