Anion and cation exchange resin separation test device

Abstract

The utility model belongs to the technical field of water treatment, and provides an anion and cation exchange resin separation test device, which comprises a test bed, a vertical frame is arranged on the test bed, a test mechanism is arranged on the vertical frame, the test mechanism comprises a fixed plate, a pair of left and right clamping arms is arranged on the fixed plate, and the left and right clamping arms are arranged on the fixed plate. Wherein the left clamping arm is installed in a sliding mode, the right clamping arm is fixedly installed, and a sliding air cylinder used for driving the left clamping arm to slide is arranged on the right clamping arm. Firstly, anion and cation resin and a separation solution are poured into a separation cup, then the separation cup is placed between two clamping seats, then a sliding air cylinder drives a left clamping arm to move inwards until the two clamping seats clamp the separation cup, at the moment, the two ends of the separation cup are both located in shallow grooves, a driving motor drives a right rotating shaft to rotate, and the separation cup is placed in the shallow grooves. Under the linkage of the two belts, the left clamping base and the right clamping base rotate along with the belts, the two clamping bases drive the separation cup to rotate, and therefore solutions in the separation cup are fully mixed.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology, and in particular relates to a test device for separating anion and cation exchange resins. Background Technology

[0002] Ion exchange resins are widely used in water treatment, food, and pharmaceutical industries, especially in the preparation of pure water, where the combined use of anion and cation exchange resins can effectively remove ionic impurities from water. When the resin becomes ineffective, it needs to be regenerated, and before regeneration, the mixed anion and cation exchange resins must be separated. In practical applications, flotation is a commonly used separation method. It uses a suitable solution (such as a saturated sodium chloride solution) as the flotation medium, causing the anion resin to float on the surface of the solution while the cation resin settles at the bottom, thus achieving separation.

[0003] In practice, to better observe the stratification of anion and cation exchange resins, separation test devices for ion exchange resins have emerged. Existing test devices generally include a test bench with a stirring rod driven by a motor. During the stratification test, an appropriate amount of anion and cation exchange resins are first poured into a test cup, followed by the separation solution. The motor then drives the stirring rod, which thoroughly mixes the resins and the separation solution. The motor then stops operating, and the separation of the resins is observed. While the above separation device can also agitate the resins and the separation solution, the rapid stirring by the stirring rod can easily cause splashing and damage to the exchange resins. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a separation test device for anion and cation exchange resins, which aims to solve the problems that existing separation test devices for anion and cation exchange resins are prone to splashing of solution and damaging the exchange resin during the test.

[0005] The present invention adopts the following technical solution:

[0006] The separation test device includes a test bench with a stand on it. A test mechanism is mounted on the stand. The test mechanism includes a fixed plate with a pair of left and right clamping arms on it. The left clamping arm is slidably mounted, and the right clamping arm is fixedly mounted. The right clamping arm is equipped with a sliding cylinder for driving the left clamping arm to slide. The clamping arm is equipped with a rotating shaft and a linkage rod for rotating back and forth. The right linkage rod is equipped with a sleeve with a pair of short slots. The left linkage rod passes through the sleeve and is equipped with a pair of rollers. The rollers are located in the corresponding short slots. The linkage rod is equipped with a linkage wheel. The rotating shaft is equipped with a clamping seat and a pulley on the inner and outer sides of the clamping arm, respectively. A belt is fitted between the pulley and the linkage wheel on the same side. The right clamping arm is equipped with a fixed seat, and a drive motor for driving the right rotating shaft to rotate is mounted on the fixed seat.

[0007] Furthermore, the left clamping arm is provided with a limiting seat, the left rotating shaft passes through the limiting seat and is provided with a limiting block, the limiting seat is provided with a pair of connecting blocks through a locking nut, the connecting blocks are provided with limiting posts, and the limiting blocks are located between the two limiting posts.

[0008] Furthermore, a shallow groove is formed on the inner side of the clamp.

[0009] Furthermore, a stop is provided on the fixing plate on the outside of the left clamping arm.

[0010] The beneficial effects of this utility model are as follows: When using this separation test device to conduct ion exchange resin separation tests, firstly, the anion and cation exchange resins and the separation solution are poured into the separation cup, and then the separation cup is placed between the two clamps. Immediately afterwards, the sliding cylinder drives the left clamp arm to move inward until the two clamps clamp the separation cup. At this time, both ends of the separation cup are located in the shallow groove. The drive motor drives the right rotating shaft to rotate, and under the linkage of the two belts, the left and right clamps rotate accordingly. The two clamps drive the separation cup to rotate, thereby achieving full mixing of the solution in the separation cup. Attached Figure Description

[0011] Figure 1 This is an overall diagram of the separation test device for separating anion and cation exchange resins provided by this utility model.

[0012] Figure 2 This is a schematic diagram of the testing mechanism provided by this utility model.

[0013] Figure 3 This utility model provides a schematic diagram of the installation of the left and right linkage rods.

[0014] Figure 4 This utility model provides a schematic diagram of the installation of the limiting post. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0016] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0017] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0018] Combination Figure 1-3 As shown, the separation test device includes a test bench 1, a stand 2 on the test bench 1, a test mechanism on the stand 2, and a fixed plate 3. A pair of left and right clamping arms 4 are slidably mounted on the fixed plate 3, wherein the left clamping arm 4 is slidably mounted and the right clamping arm 4 is fixedly mounted. The right clamping arm 4 is provided with a sliding cylinder 18 for driving the left clamping arm to slide. The clamping arm 4 is provided with a rotating shaft 5 and a linkage rod for rotating back and forth, respectively, wherein the left linkage rod is marked as 61 and the right linkage rod is marked as 62. A sleeve 7 is provided on the right linkage rod 62, and a pair of short slots 8 are opened on the sleeve 7. The left linkage rod 61 passes into the sleeve 7 and is provided with a pair of rollers 9. The rollers 9 are located in the corresponding short slots 8. A linkage wheel 10 is provided on the linkage rod. A clamping seat 11 and a pulley 12 are respectively provided on the inner and outer sides of the clamping arm 4 on the rotating shaft 5. A belt (not shown in the figure) is sleeved between the pulley 12 and the linkage wheel 10 on the same side. A fixed seat 13 is provided on the right clamping arm 4. A drive motor 14 for driving the right rotating shaft 5 to rotate is provided on the fixed seat 13.

[0019] In practical applications, flotation is a commonly used separation method. It utilizes a suitable solution as the flotation medium, such as a saturated sodium chloride solution, causing the anion resin to float on the surface of the solution while the cation resin settles at the bottom, thus achieving separation. To better observe the stratification of anion and cation resins, separation test devices for ion exchange resins have emerged.

[0020] exist Figure 3 In this design, two linkage rods are rotatably mounted on the left and right clamping arms, respectively. A sleeve is mounted on the right linkage rod, and the left linkage rod is located inside the sleeve. A pair of short grooves are provided on the sleeve, and a roller is positioned on the left linkage rod facing one of these grooves. Therefore, when the sliding cylinder drives the left clamping arm to move, the roller slides within the short groove, acting as a guide and limiting mechanism. This makes the movement of the left clamping arm more stable. Furthermore, when the drive motor drives the right rotating shaft to rotate, the right linkage rod, along with the sleeve, rotates under the linkage of the corresponding belt. Under the action of the two rollers, the left linkage rod also rotates simultaneously. With the linkage of the left belt, the two rotating shafts rotate synchronously.

[0021] When using this separation test apparatus to conduct ion exchange resin separation tests, first pour the anion and cation exchange resins and the separation solution into the separation cup. Figure 2 In this process, because the inner side of the clamp 11 has a shallow groove 15, the separating cup is placed between the two clamps, with both ends of the separating cup corresponding to the shallow groove. Then, the sliding cylinder drives the left clamping arm to move inward until the two clamps clamp the separating cup tightly, at which point both ends of the separating cup are within the shallow groove. The drive motor drives the right rotating shaft to rotate, and under the linkage of the two belts, the left and right clamps rotate accordingly. The two clamps drive the separating cup to rotate, thereby achieving thorough mixing of the solution within the separating cup.

[0022] Once the solutions in the separation cup are fully mixed, the drive motor stops rotating. The operator holds the separation cup, and the sliding cylinder drives the left clamping arm to move outwards. This continues until the clamping arm releases the separation cup. Finally, the separation cup is placed on the test bench and left to stand for the solutions to separate. The separation cup is made of transparent material for easy observation.

[0023] A stop 16 is provided on the fixing plate 3 on the outer side of the left clamping arm 4. A slide rail 17 is provided on the fixing plate 3, and the stop 16 is provided on the outer side of the slide rail 17. A sliding cylinder drives the left clamping arm to move outward, and the stop prevents the clamping arm from disengaging from the slide rail during the movement.

[0024] As a preferred structure, Figure 4 In the middle, the left clamping arm 4 is provided with a limiting seat 19, the left rotating shaft 5 passes through the limiting seat 19 and is provided with a limiting block 20, the limiting seat 19 is provided with a pair of connecting blocks 21 through a locking nut 23, the connecting block 21 is provided with a limiting post 22, and the limiting block 20 is located between the two limiting posts 22.

[0025] In this device, the drive motor is a stepper motor. During the test, the drive motor drives the right rotating shaft to rotate back and forth. During this process, the two limiting posts limit the limiting block and also limit the rotation angle of the clamp, making the back-and-forth rocking of the separating cup more stable.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An apparatus for separating cation and anion exchange resins, characterized by: The separation test device comprises a test table, a stand arranged on the test table, a test mechanism arranged on the stand, a fixed plate, a pair of left and right clamping arms arranged on the fixed plate, a sliding cylinder arranged on the right clamping arm and used for driving the left clamping arm to slide, a rotating shaft, a linkage rod, a sleeve, a pair of short grooves, a pair of rollers, a linkage wheel, a clamping seat, a belt wheel, a fixed seat, and a driving motor.

2. The apparatus for separating cation and anion exchange resins according to claim 1, wherein: A limiting seat is arranged on the left clamping arm, a limiting block is arranged on the left rotating shaft, a pair of connecting blocks are arranged on the limiting seat through locking nuts, limiting columns are arranged on the connecting blocks, and the limiting block is located between the two limiting columns.

3. The apparatus for separating cation and anion exchange resins according to claim 2, wherein: A shallow groove is formed in the inner side of the clamping seat.

4. The apparatus of claim 3 wherein: the cation exchange resin is a strong base resin; and the anion exchange resin is a weak base resin. A stop block is arranged on the fixed plate outside the left clamping arm.

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