Chemical mixing tank

Abstract

A chemical mixing tank comprises: a tank body; the sealing cover is fixed at the top end of the tank body, and one side of the sealing cover is rotationally connected with a feeding cover; the stirring motor is mounted in the middle of the top of the cover; the liquid discharge pipe is arranged on one side of the bottom end of the tank body; the stirring shaft is driven by the stirring motor and rotationally mounted on the inner side of the tank body; the plurality of stirring blades are uniformly distributed along the circumferential direction of the stirring shaft; the utility model discloses a stirring device, which comprises a stirring blade and an auxiliary mechanism arranged at the end part of the stirring blade, the auxiliary mechanism comprises an exchange part fixed at the end part of the stirring blade, and the upper part of one side of the exchange part facing to the stirring direction is provided with a liquid suction port, the exchange part of the auxiliary mechanism passes through the liquid suction port (facing to the upper part of the stirring direction) and a liquid discharge port (back to the lower part of the stirring direction), and the liquid discharge port is communicated with the liquid discharge port. By means of the pressure difference generated by stirring, chemicals are forcibly guided to be sucked in from the liquid suction port and discharged from the liquid discharge port after passing through the guide channel, cross-regional fluid exchange is formed, and the local mixing limitation of traditional stirring is broken through.

Description

Technical Field

[0001] This utility model relates to a mixing tank, specifically a chemical mixing tank. Background Technology

[0002] In the production processes of industries such as chemicals, pharmaceuticals, and materials, thorough mixing of chemicals is a crucial step in ensuring product quality and performance. Traditional chemical mixing tanks typically employ a structure of a stirring shaft and impellers. A motor drives the stirring components to rotate, relying on mechanical stirring force to cause the chemicals within the tank to collide and diffuse, achieving mixing. However, this conventional mixing method has significant limitations: firstly, the impellers can only move fluid in a localized area, easily creating mixing blind zones within the tank, leading to uneven chemical mixing and affecting batch-to-batch product stability; secondly, traditional mixing tanks lack directional guidance and enhanced mixing mechanisms, resulting in low mixing efficiency, prolonged production cycles, and increased energy costs.

[0003] To improve mixing performance, some existing technologies attempt to improve mixing performance by optimizing the shape of the stirring blades or increasing the number of stirring components. However, such improvements only make simple adjustments to the fluid flow in the stirring area and cannot fundamentally solve the problem of insufficient fluid exchange. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a chemical mixing tank, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model includes:

[0006] Tank body;

[0007] A cap is fixed to the top of the tank, and a feeding cap is rotatably connected to one side of the cap;

[0008] The stirring motor is installed in the middle of the top of the cover;

[0009] A drain pipe located on one side of the bottom of the tank;

[0010] A stirring shaft driven by a stirring motor and rotatably mounted inside the tank;

[0011] Multiple stirring blades evenly distributed circumferentially along the stirring shaft;

[0012] And an auxiliary mechanism provided at the end of the stirring blade, the auxiliary mechanism including an exchange component fixed to the end of the stirring blade, the exchange component having a liquid suction port on the upper part of the side facing the stirring direction and a liquid discharge port on the lower part of the side facing away from the stirring direction, the liquid suction port and the liquid discharge port being connected by a guide channel.

[0013] Preferably, it also includes a slope, which is disposed inside the liquid suction port and guides the channel at an angle.

[0014] Preferably, the guide channel is inclined at 30-60° from the bottom of the suction port towards the discharge port.

[0015] Preferably, the inclined surface extends to the entrance of the guide channel to form an arc-shaped guide plate, and the radius of curvature of the guide plate is 3-8mm.

[0016] Preferably, the inner wall of the guide channel is provided with spiral ribs at intervals, and the distance between adjacent ribs is 0.8-1.2 times the channel diameter.

[0017] Preferably, the exchange component adopts a plate-like structure.

[0018] Beneficial effects: Directional fluid circulation: The exchange components of the auxiliary mechanism use the suction port (facing the upper part of the stirring direction) and the discharge port (facing the lower part of the stirring direction) to force the chemicals to be drawn in from the suction port and discharged from the discharge port through the guide channel, forming cross-regional fluid exchange and breaking the local mixing limitations of traditional stirring.

[0019] Turbulence-enhanced mixing: The spiral ribs on the inner wall of the channel (with a spacing of 0.8-1.2 times the channel diameter) disrupt the laminar flow state of the fluid, increase the degree of turbulence, and cause secondary mixing of chemicals in the channel, further improving the overall uniformity.

[0020] Fluid guidance optimization

[0021] The inclined surface and arc-shaped guide plate (curvature radius 3-8mm) inside the suction port reduce fluid resistance, guide chemicals into the guide channel quickly, and improve exchange efficiency.

[0022] The 30-60° inclined design of the guide channel, combined with gravity, assists the natural flow of fluid and avoids material stagnation or deposition within the channel. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the installation structure of the auxiliary mechanism of this utility model;

[0027] Figure 4 This is a cross-sectional view of the exchange component of this utility model;

[0028] The following are labeled in the diagram: 1. Tank body; 2. Cover; 3. Feeding cover; 4. Stirring motor; 5. Drain pipe; 6. Stirring shaft; 7. Stirring blades; 8. Auxiliary mechanism; 9. Exchange component; 10. Suction port; 11. Drain port; 12. Guide channel; 13. Inclined surface. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this utility model will be described in further detail.

[0030] Example 1, by Figure 1-4 This utility model provides a chemical mixing tank, comprising:

[0031] Tank 1;

[0032] A cap 2 is fixed to the top of the tank body 1, and a feeding cap 3 is rotatably connected to one side of the cap 2;

[0033] The stirring motor 4 is installed at the middle of the top of the cover 2;

[0034] A drain pipe 5 is located on one side of the bottom end of tank 1;

[0035] A stirring shaft 6 is driven by a stirring motor 4 and rotatably mounted inside the tank 1;

[0036] Multiple stirring blades 7 are evenly distributed around the stirring shaft 6;

[0037] And an auxiliary mechanism 8 is provided at the end of the stirring blade 7. The auxiliary mechanism 8 includes an exchange component 9 fixed to the end of the stirring blade 7. The upper part of the side of the exchange component 9 facing the stirring direction is provided with a liquid suction port 10, and the lower part of the side facing away from the stirring direction is provided with a liquid discharge port 11. The liquid suction port 10 and the liquid discharge port 11 are connected by a guide channel 12.

[0038] Tank 1: Tank 1 serves as the main container of the entire mixing tank and is used to hold the chemicals to be mixed.

[0039] Cover 2 and feed cap 3: Cover 2, fixed to the top of tank 1, seals the tank, ensuring the mixing process takes place in a relatively enclosed environment and preventing chemical leakage and volatilization. Feed cap 3 is rotatably connected to one side of cover 2, facilitating the addition of chemical raw materials to the tank before mixing.

[0040] Stirring motor 4: The stirring motor 4, installed at the top center of the cover 2, provides power for the rotation of the stirring shaft 6. The stirring operation is achieved by driving the motor, which drives the movement of the chemicals in the tank.

[0041] Drain pipe 5: Drain pipe 5 is located on one side of the bottom end of tank 1 and is used to discharge the uniformly mixed chemicals from tank 1 after mixing and transport them to subsequent production processes.

[0042] Stirring shaft 6 and stirring blades 7: The stirring shaft 6 is driven by the stirring motor 4 and rotatably mounted inside the tank body 1, and multiple stirring blades 7 are evenly distributed around the stirring shaft 6. The stirring shaft 6 rotates under the drive of the stirring motor 4, and the stirring blades 7 rotate accordingly to stir the chemicals in the tank and achieve preliminary mixing.

[0043] Auxiliary Mechanism 8: The auxiliary mechanism 8, located at the end of the stirring blade 7, is the core innovation of this utility model. The auxiliary mechanism 8 includes an exchange component 9 fixed to the end of the stirring blade 7. The exchange component 9 adopts a plate-like structure, which is simple and easy to manufacture, while ensuring good fluid exchange performance. A suction port 10 is provided on the upper part of the side of the exchange component 9 facing the stirring direction, and a discharge port 11 is provided on the lower part of the side facing away from the stirring direction. The suction port 10 and the discharge port 11 are connected by a guide channel 12. During stirring, the stirring blade 7 rotates, driving the exchange component 9 to move. Due to the special positioning of the suction port 10 and the discharge port 11, and the fluid pressure difference generated by stirring, chemicals can enter the guide channel 12 from the suction port 10 and then be discharged from the discharge port 11, thereby realizing the exchange flow of chemicals between different areas and further improving the mixing effect.

[0044] Inclined surface 13 and guide vane: The system also includes an inclined surface 13, located within the suction port 10 and angled towards the guide channel 12. The inclined surface 13 extends to the inlet of the guide channel 12 to form an arc-shaped guide vane with a radius of curvature of 3-8 mm. The design of the inclined surface 13 and the arc-shaped guide vane guides the chemicals smoothly into the guide channel 12, reducing fluid resistance, increasing the flow rate and volume of the chemicals, and ensuring a smooth exchange process.

[0045] The guide channel 12 features a special design: it slopes at 30-60° from the bottom of the suction port 10 towards the discharge port 11. This angle facilitates the natural flow of chemicals within the guide channel 12 under gravity and fluid pressure, preventing chemical accumulation. Simultaneously, the inner wall of the guide channel 12 is spaced with spiral ribs, with the spacing between adjacent ribs being 0.8-1.2 times the channel diameter. These spiral ribs disrupt the flow of chemicals, increasing turbulence and further mixing them within the guide channel 12, thereby improving overall mixing uniformity.

[0046] Working principle: When the chemical mixing tank of this utility model is in operation, the top opening of the tank body 1 is first opened by rotating the feeding cover 3, and the chemical raw materials to be mixed are added into the tank body 1 through the opening formed by the sealing cover 2 and the feeding cover 3. Then the feeding cover 3 is closed, and the sealing cover 2 is used to seal the tank body 1 to prevent chemical leakage and volatilization.

[0047] The stirring motor 4 is started, and its output power drives the stirring shaft 6 to rotate, which in turn drives the stirring blades 7, which are evenly distributed around the circumference of the stirring shaft 6, to rotate inside the tank 1. When the stirring blades 7 rotate, they initially stir the chemicals inside the tank, promote the flow of chemicals over a large area inside the tank, and achieve basic mixing.

[0048] The auxiliary mechanism 8 at the end of the stirring blade 7 plays a role in the stirring process. As the stirring blade 7 rotates, the exchange component 9 moves accordingly. Under the action of the fluid pressure difference generated by stirring, since the suction port 10 is located on the upper part of the exchange component 9 facing the stirring direction and the discharge port 11 is located on the lower part facing away from the stirring direction, the chemicals will enter the guide channel 12 from the suction port 10. The inclined surface 13 and the extended arc-shaped guide plate inside the suction port 10 effectively guide the flow of chemicals, reduce resistance, and increase flow rate and velocity. The guide channel 12 is inclined at 30-60° towards the discharge port 11, allowing the chemicals to flow naturally by gravity and fluid pressure. The spiral ribs arranged at intervals on the inner wall disturb the flow state of the chemicals, increase the degree of turbulence, and allow the chemicals to be further mixed in the channel before finally being discharged from the discharge port 11, realizing the exchange flow of chemicals in different areas and greatly improving the mixing effect.

[0049] Once the chemicals are mixed evenly, the drain pipe 5 is opened, and the mixed chemicals are discharged from the drain pipe 5 on one side of the bottom of the tank 1 under the action of gravity, and transported to the subsequent production process.

[0050] Beneficial effects: Directional fluid circulation: The exchange component 9 of the auxiliary mechanism 8 uses the pressure difference generated by stirring to force the chemicals to be drawn in from the suction port 10 (facing the upper part of the stirring direction) and discharged from the discharge port 11 (facing the lower part of the stirring direction) through the suction port 10 and the discharge port 11, forming a cross-regional "suction-pumping-discharge" cycle, breaking the local mixing limitation of traditional stirring.

[0051] Turbulence-enhanced mixing: The spiral ribs on the inner wall of the guide channel 12 (with a spacing of 0.8-1.2 times the channel diameter) disrupt the laminar flow state of the fluid, increase the degree of turbulence, and cause secondary mixing of chemicals in the channel, further improving the overall uniformity.

[0052] Fluid guidance optimization

[0053] The inclined surface 13 and the arc-shaped guide plate (curvature radius 3-8mm) inside the suction port 10 reduce fluid resistance, guide chemicals to enter the guide channel 12 quickly, and improve exchange efficiency.

[0054] The 30-60° inclined design of the guide channel 12, combined with gravity, assists the natural flow of fluid and avoids material stagnation or deposition in the channel.

[0055] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A chemical mixing tank, characterized in that: include: Tank body (1); A cap (2) is fixed to the top of the tank (1), and a feeding cap (3) is rotatably connected to one side of the cap (2). The stirring motor (4) is installed in the middle of the top of the cover (2); A drain pipe (5) is located on one side of the bottom end of the tank (1). A stirring shaft (6) is driven by a stirring motor (4) and rotatably installed inside the tank (1). Multiple stirring blades (7) are evenly distributed around the stirring shaft (6); And an auxiliary mechanism (8) provided at the end of the stirring blade (7), the auxiliary mechanism (8) includes an exchange component (9) fixed at the end of the stirring blade (7), the upper part of the exchange component (9) facing the stirring direction is provided with a liquid suction port (10), and the lower part of the side facing away from the stirring direction is provided with a liquid discharge port (11), the liquid suction port (10) and the liquid discharge port (11) are connected by a guide channel (12).

2. A chemical mixing tank according to claim 1, characterized in that: It also includes a slope (13) located inside the suction port (10) and inclined to guide the channel (12).

3. A chemical mixing tank according to claim 2, characterized in that: The guide channel (12) is inclined at 30-60° from the bottom of the suction port (10) toward the discharge port (11).

4. A chemical mixing tank according to claim 3, characterized in that: The inclined surface (13) extends to the entrance of the guide channel (12) to form an arc-shaped guide plate with a radius of curvature of 3-8 mm.

5. A chemical mixing tank according to claim 4, characterized in that: The inner wall of the guide channel (12) is provided with spiral ribs at intervals, and the distance between adjacent ribs is 0.8-1.2 times the diameter of the channel.

6. A chemical mixing tank according to claim 5, characterized in that: The exchange component (9) adopts a plate-like structure.

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