Potassium hydroxide dissolving device

Abstract

The utility model discloses a potassium hydroxide dissolving device in the technical field of potassium hydroxide solution preparation, and aims to solve the problem that the concentrations of prepared solutions are different due to the fact that the dissolving amount of potassium hydroxide is uncertain in the prior art. The mixing device comprises a mixing cylinder, a liquid inlet and a stirring device are arranged on the mixing cylinder, a liquid outlet pipe is arranged below the mixing cylinder, a plane is arranged above the side of the mixing cylinder, a rotary vane connected with the stirring device is located below the plane, and a shaft hole, a feeding port and a discharging port are formed in the plane. The feeding port and the discharging port are distributed in the plane position at equal intervals with the shaft hole as the circle center, a rotating rod is rotationally installed at the position of the shaft hole, a connecting plate is installed at the tail end of the rotating rod, and a hopper is installed on the connecting plate. The potassium hydroxide dissolving device is used for dissolving potassium hydroxide, can effectively judge the actual dissolving amount of potassium hydroxide, and is beneficial to obtaining a potassium hydroxide solution with relatively accurate concentration when the potassium hydroxide solution is prepared for the first time.

Description

Technical Field

[0001] This utility model relates to a potassium hydroxide dissolving device, belonging to the field of chemical reagent preparation technology. Background Technology

[0002] In the preparation of industrial potassium hydroxide solutions, a solution of a certain concentration is often prepared by dissolution, followed by other process steps to accurately prepare a solution of the same concentration. When dissolving solid potassium hydroxide in an aqueous solution, the amount of water used is usually taken into account to determine the specific mass of potassium hydroxide to ensure that the concentration of the mixed solution is within the required range. Currently, the common practice is to directly add a specific mass of potassium hydroxide to the dissolving solution. However, potassium hydroxide is prone to contain impurities. Directly adding it to the dissolving solution will leave impurities in the solution. This not only makes it impossible to determine the actual mass of potassium hydroxide involved in dissolution, which has a certain impact on the concentration of the initial product, but also makes it easy for some impurities to remain in the solution, affecting the mixing and dissolution effect. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a potassium hydroxide dissolving device for dissolving potassium hydroxide. This device can effectively determine the actual amount of potassium hydroxide dissolved, which helps to obtain a more accurate concentration of potassium hydroxide solution when preparing potassium hydroxide solution for the first time.

[0004] To achieve the above objectives, this utility model employs the following technical solution:

[0005] This utility model provides a potassium hydroxide dissolving device, including a mixing cylinder, an inlet and a stirring device, an outlet pipe at the bottom of the mixing cylinder, a plane above the side of the mixing cylinder, a rotary blade connected to the stirring device located below the plane, a shaft hole, a feed inlet and a discharge outlet on the plane, the feed inlet and discharge outlet being evenly distributed on the plane with the shaft hole as the center, a rotating rod rotatably mounted at the shaft hole, a connecting plate mounted at the end of the rotating rod, a hopper with an opening conforming to the inner plane of the mixing cylinder mounted on the connecting plate, the surface of the hopper having mesh openings that allow passage through the feed inlet and discharge outlet by rotation, and the hopper being able to be immersed in the mixture in the mixing cylinder by rotation, the opening of the hopper conforming to the plane of the inner wall of the mixing cylinder, a feed trough and a discharge trough respectively provided at the feed inlet and discharge outlet of the mixing cylinder, and a weighing device below each of the feed trough and discharge trough.

[0006] Specifically, it also includes a platform, which is equipped with a pushing device for pushing potassium hydroxide in the feed tank toward the feed inlet. The pushing device includes a cylinder and a push plate, and the cylinder is fixedly mounted on the platform.

[0007] Specifically, both the feed inlet and the discharge outlet are equipped with guide ports. The guide port of the feed inlet is inclined upwards in the direction away from the mixing cylinder, and the guide port of the discharge outlet is inclined downwards in the direction away from the mixing cylinder.

[0008] Specifically, when the opening of the hopper corresponds to the discharge port, the hopper tilts downward along the direction close to the wall of the mixing cylinder; when the opening of the hopper corresponds to the feed port, the hopper tilts upward along the direction close to the wall of the mixing cylinder.

[0009] Specifically, the rotating rod is equipped with two hoppers, which are rotationally symmetrical about the axis of the rotating rod.

[0010] Specifically, the bottom surface of the hopper at its lowest rotation position is higher than the highest position of the blades.

[0011] Specifically, the pusher plate travels between the feed troughs, and the pusher plate does not contact the feed troughs.

[0012] Specifically, baffles are provided on both sides of the discharge trough to prevent impurities from leaking out.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0014] This invention is used for dissolving potassium hydroxide. By setting an inlet and an outlet on the mixing cylinder, and by designing a hopper to allow the residual solid potassium hydroxide to be collected after dissolution, the solids before and after dissolution are weighed to determine the actual mass of potassium hydroxide involved in the dissolution. This allows for accurate determination of the current mixing concentration, providing a basis for deciding whether to continue adding materials and calculating the final concentration of the potassium hydroxide solution. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the potassium hydroxide dissolving device provided in this embodiment of the utility model;

[0016] Figure 2 This is a rear view of the potassium hydroxide dissolving device provided in this embodiment of the present invention;

[0017] Figure 3 This is a utility model Figure 2 A cross-sectional view of the potassium hydroxide dissolving apparatus provided in the embodiment, taken along the AA direction.

[0018] Figure 4 This is a schematic diagram of the hopper structure provided in an embodiment of the present utility model;

[0019] Reference numerals in the attached drawings: 1. Mixing cylinder; 2. Liquid inlet; 3. Stirring device; 4. Liquid outlet pipe; 5. Rotary blade; 6. Rotating rod; 7. Connecting plate; 8. Hopper; 9. Feed trough; 10. Discharge trough; 11. Weighing device; 12. Frame; 13. Cylinder; 14. Push plate; 15. Guide port. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example:

[0023] This utility model provides a potassium hydroxide dissolving device for dissolving potassium hydroxide. It can effectively determine the actual amount of potassium hydroxide dissolved, helping to obtain a more accurate concentration of potassium hydroxide solution during the initial preparation. To achieve the device's structural function, it includes a mixing cylinder 1. Specifically, as shown... Figure 1As shown, a liquid inlet 2 and a stirring device 3 are provided on the mixing cylinder 1. The liquid inlet 2 is used to supply the dissolved solution, and a liquid outlet pipe 4 is provided at the bottom of the mixing cylinder 1 to discharge the dissolved solution after the reaction. In order to allow the reactants to participate in the dissolution and to discharge any remaining undissolved substances, a plane is provided above the side of the mixing cylinder 1, as shown. Figure 3 As shown, the rotating blade 5 connected to the stirring device 3 is located below the plane to avoid reducing the rotation area of ​​the blade 5 due to the plane's position, allowing the blade 5 to contact the wall of the mixing cylinder 1 as closely as possible, thus increasing the stirring range. To automatically supply potassium hydroxide, a shaft hole, a feed inlet, and a discharge outlet are provided on this plane. The feed inlet and discharge outlet are evenly spaced on the plane with the shaft hole as the center. A rotating rod 6 is rotatably mounted at the shaft hole, and a drive device is provided to rotate the rotating rod 6. Figure 1 As shown, a connecting plate 7 is installed at the end of the rotating rod 6, and a hopper 8 with an opening that fits the inner plane of the mixing cylinder 1 is installed on the connecting plate 7. Figure 4 As shown, the hopper 8 has a mesh surface and is designed to rotate through the inlet and outlet. The hopper 8 is immersed in the mixture in the mixing drum 1. The opening of the hopper 8 is flush with the inner wall of the mixing drum 1. When the hopper 8 passes through the inlet, a measured amount of potassium hydroxide solid is supplied into it. During rotation, the hopper 8 carries the potassium hydroxide solid into the liquid, causing it to dissolve. After complete dissolution, the hopper 8 rotates to the outlet position. Undissolved residue is removed (this can be done manually or mechanically, similar to when feeding into the mixing drum 1), thus determining the actual amount of substance involved in the dissolution. This helps in determining the concentration of the substance involved in the dissolution reaction. To improve the semi-automatic performance of the device, a feed trough 9 and a discharge trough 10 can be provided at the inlet and outlet positions of the mixing drum 1, respectively. Figure 1 As shown, weighing devices 11 are installed below both the feed trough 9 and the discharge trough 10. These devices weigh the materials before and after the reaction to determine the actual mass of potassium hydroxide involved in the dissolution. In this apparatus, since potassium hydroxide is difficult to dissolve quickly and completely in the hopper 8, the stirring and turbulence of the rotary blades 5 ensures rapid and thorough mixing of the liquid in the mixing cylinder 1. The turbulence also helps to maintain a uniform temperature throughout the solution, ensuring the reaction rate of the potassium hydroxide. Simultaneously, the rotation during mixing alters the dead angles of the mesh, preventing uneven liquid flow from affecting the rapid dissolution of potassium hydroxide. During the dissolution process, it is crucial to control the liquid level inside the mixing cylinder 1 to prevent the hopper 8 from failing to function properly.

[0024] This utility model provides a potassium hydroxide dissolving device. To automatically push and supply potassium hydroxide into the mixing cylinder 1, the device also includes a stand 12. Specifically, as shown... Figure 1 As shown, a pushing device is provided on the frame 12 for pushing potassium hydroxide in the feed trough 9 toward the feed inlet. The pushing device includes a cylinder 13 and a pusher plate 14. The cylinder 13 is fixedly mounted on the frame 12 by a connecting action, and the pusher plate 14 is located inside the feed trough 9. It is used to push the material inside the hopper 8 into the mixing cylinder 1 after the hopper 8 moves to the feed inlet position.

[0025] This utility model provides a potassium hydroxide dissolving device. To facilitate the entry and exit of materials into and out of the mixing cylinder 1, guide ports 15 are installed at both the inlet and outlet. The guide port 15 of the inlet is inclined upward in the direction away from the mixing cylinder 1, and the guide port 15 of the outlet is inclined downward in the direction away from the mixing cylinder 1. With the assistance of gravity, the materials can flow out or enter smoothly, and a temporary storage connecting platform is provided to prevent materials from getting stuck in the gaps and making it inconvenient to clean.

[0026] This utility model provides a potassium hydroxide dissolving device. To prevent material leakage from the hopper 8 during filling and to avoid the difficulty in removing impurities from the lower corner of the hopper 8 during discharge, the orientation of the hopper 8 can be changed, i.e., the hopper 8 can be designed to be tilted. Specifically, when the opening of the hopper 8 corresponds to the discharge port, the hopper 8 tilts downward along the direction close to the wall of the mixing cylinder 1. When the opening of the hopper 8 corresponds to the inlet, the hopper 8 tilts upward along the direction close to the wall of the mixing cylinder 1. These tilting methods are only used to guide the material by gravity, so that the material can fall downward.

[0027] This utility model provides a potassium hydroxide dissolving device. In order to facilitate manual cleaning of the hopper 8 while the equipment continues to dissolve without stopping, two hoppers 8 can be set on the rotating rod 6. The two hoppers 8 are rotationally symmetrical about the rotating rod 6, so that they are placed at the same position with the same amplitude.

[0028] In this embodiment of the utility model, a potassium hydroxide dissolving device is provided. To avoid the conflict between the rotating blade 5 and the rotating position of the hopper 8, and to avoid mechanical movement conflicts that could damage the structure, the bottom surface of the hopper 8 at its lowest rotating position is set higher than the highest position of the rotating blade 5.

[0029] The present invention provides a potassium hydroxide dissolving device. In order to avoid the pusher plate 14 affecting the weighing accuracy of the weighing device 11 during the automatic feeding process, and to ensure the accurate ejection of potassium hydroxide material, the stroke of the pusher plate 14 is set to be located between the feed troughs 9, and the pusher plate 14 is set not to contact the feed troughs 9, so as to avoid the impact on the weighing result of the weighing device 11 due to friction after the material is ejected.

[0030] In this embodiment of the utility model, a potassium hydroxide dissolving device is provided. In order to prevent undissolved impurities from falling into the discharge trough 10 and rolling down from the discharge trough 10, thus affecting the weighing effect, baffles are provided on both sides of the discharge trough 10 to prevent impurities from leaking out.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A potassium hydroxide dissolving device, characterized in that, The device includes a mixing cylinder (1), which is provided with a liquid inlet (2) and a stirring device (3). A liquid outlet pipe (4) is provided below the mixing cylinder (1). A plane is set above the side of the mixing cylinder (1). The blade (5) connected to the stirring device (3) is located below the plane. A shaft hole, a feed inlet and a discharge outlet are provided on the plane. The feed inlet and the discharge outlet are distributed at equal intervals on the plane with the shaft hole as the center. A rotating rod (6) is rotatably installed at the shaft hole. A connecting plate (7) is installed at the end of the rotating rod (6). A hopper (8) with an opening that fits the inner plane of the mixing cylinder (1) is installed on the connecting plate (7). The surface of the hopper (8) is provided with a mesh and can pass through the inlet and outlet by rotation. The hopper (8) can be immersed in the mixture of the mixing cylinder (1) by rotation. The opening of the hopper (8) is set to fit the plane of the inner wall of the mixing cylinder (1). The inlet and outlet of the mixing cylinder (1) are respectively provided with a feed trough (9) and a discharge trough (10). A weighing device (11) is provided below the feed trough (9) and the discharge trough (10).

2. The potassium hydroxide dissolving device according to claim 1, characterized in that, It also includes a frame (12), which is provided with a pushing device for pushing potassium hydroxide in the feed trough (9) to the feed inlet. The pushing device includes a cylinder (13) and a push plate (14). The cylinder (13) is fixedly mounted on the frame (12).

3. A potassium hydroxide dissolving device according to claim 1 or 2, characterized in that, Both the feed inlet and the discharge outlet are equipped with guide ports (15). The guide port (15) of the feed inlet is inclined upward in the direction away from the mixing cylinder (1), and the guide port (15) of the discharge outlet is inclined downward in the direction away from the mixing cylinder (1).

4. The potassium hydroxide dissolving device according to claim 3, characterized in that, When the opening of the hopper (8) corresponds to the discharge port, the hopper (8) tilts downward along the direction close to the wall of the mixing cylinder (1). When the opening of the hopper (8) corresponds to the feed port, the hopper (8) tilts upward along the direction close to the wall of the mixing cylinder (1).

5. The potassium hydroxide dissolving device according to claim 4, characterized in that, Two hoppers (8) are provided on the rotating rod (6), and the two hoppers (8) are rotationally symmetrical about the axis of the rotating rod (6).

6. The potassium hydroxide dissolving device according to claim 5, characterized in that, The hopper (8) is located at the lowest position of rotation, which is higher than the highest position of the blade (5).

7. A potassium hydroxide dissolving device according to claim 2, characterized in that, The push plate (14) is positioned between the feed troughs (9) and does not contact the feed troughs (9).

8. A potassium hydroxide dissolving device according to claim 4, characterized in that, The discharge trough (10) is provided with baffles on both sides to prevent impurities from leaking out.

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