Liquid level detection device for viscous liquid in stirring material box

Abstract

The utility model discloses a liquid level detection device for stirring viscous liquid in a workbin, which comprises a rack, a workbin, a stirring assembly and a detection assembly, the workbin is arranged on the rack and is provided with a feed port and a pumping port, the stirring assembly is used for stirring the viscous liquid in the workbin, the detection assembly comprises an L-shaped pipe, a floating block and at least two sensing elements, and the L-shaped pipe is provided with a feeding port and a pumping port. The L-shaped pipe is arranged on the outer wall of the material box and communicated with the material box, the floating block is arranged in the L-shaped pipe, and the sensing elements are arranged on the outer wall of the L-shaped pipe at intervals up and down. The viscous liquid in the material box is continuously stirred through the stirring assembly to prevent deposition of the viscous liquid, an L-shaped pipe is communicated with the outside of the material box to form a U-shaped pipe with the material box, the liquid level of the material box is detected by detecting the liquid level of the external L-shaped pipe, interference of the stirring assembly is effectively avoided, and the working efficiency is improved. Meanwhile, liquid level detection accuracy reduction caused by liquid level fluctuation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of viscous liquid level detection, specifically a liquid level detection device for viscous liquid in a mixing tank. Background Technology

[0002] In the electrolytic aluminum production process, prebaked anode high-temperature protective coatings are used to prevent oxidation and resist high-temperature electrolyte corrosion. However, due to the high viscosity, easy settling, and easy drying of this coating, the storage tank needs to be constantly stirred to prevent settling. This poses a significant challenge to level detection in the tank. Some equipment manufacturers use flow valves to detect low levels, but when the equipment stops, the drying coating can easily stick to the baffles inside the flow valve, causing detection failure. Installing a level sensor on the tank body is also an option, but the viscous coating can easily obscure the switch, leading to false alarms. Because of the internal stirring paddle and the large fluctuations in the liquid level during stirring, it is impossible to install a float switch for detection. Currently, the replenishment method for automatic coating tanks in electrolytic aluminum production is still manual monitoring and level observation. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a liquid level detection device for viscous liquids in a mixing tank, ensuring accurate measurement of the liquid level during mixing of viscous liquids, while achieving unattended operation, automatic stop when full, and automatic replenishment when insufficient.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a liquid level detection device for viscous liquid in a mixing tank, comprising a frame, a tank, a mixing assembly, and a detection assembly. The tank is mounted on the frame and has an inlet and a outlet. The mixing assembly is used to mix the viscous liquid in the tank. The detection assembly includes an L-shaped tube, a float, and at least two sensing elements. The L-shaped tube is disposed on the outer wall of the tank and communicates with the tank. The float is disposed inside the L-shaped tube. The sensing elements are disposed on the outer wall of the L-shaped tube and spaced vertically. The mixing assembly includes a motor, a motor mounting base, and a mixing paddle. The motor mounting base is fixed on the frame. The motor is mounted on the motor mounting base and located above the tank. The mixing paddle is disposed inside the tank and connected to the motor. The mixing paddle has several mixing blades, which are spaced apart along the axial direction of the mixing paddle and have different lengths.

[0005] The sensing element is a magnetic switch, and the float has a magnet inside.

[0006] There are two sensing elements: the sensing element located at the upper end of the L-shaped tube detects the liquid level as the stop-feeding liquid level, and the sensing element located at the lower end of the L-shaped tube detects the liquid level as the feed-feeding liquid level.

[0007] It also includes a material bin cover, which is located on the upper surface of the material bin and has a clearance hole for avoiding the stirring assembly.

[0008] The beneficial effects of this utility model are:

[0009] 1. This utility model connects an L-shaped pipe to the outside of the material box to form a U-shaped pipe with the material box. By detecting the liquid level in the external L-shaped pipe, the liquid level in the material box can be detected, which effectively avoids interference from the stirring components and avoids the decrease in the accuracy of liquid level detection caused by liquid surface fluctuations.

[0010] 2. By setting up a stirring assembly to continuously stir the viscous liquid in the tank, the sedimentation of the viscous liquid is prevented. The stirring blades with different lengths and intervals are used to effectively expand the stirring range and further prevent the sedimentation of the viscous liquid. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a top view of the present invention;

[0014] Figure 3 for Figure 2 Sectional view along direction A;

[0015] In the diagram: 1. Frame; 2. Material bin; 3. Material extraction port; 4. Material inlet; 5. Material bin cover; 6. Motor mounting base; 7. Motor; 8. Agitator; 81. Agitator blade; 9. Induction element; 10. Float; 11. Magnet; 12. L-shaped tube. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0017] The technical solution of this utility model will be described in detail below with reference to specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation. The same or similar concepts or processes may not be described again in some embodiments. Example

[0018] like Figures 1 to 3As shown, this utility model provides a liquid level detection device for viscous liquid in a mixing tank, including a frame 1, a tank 2, a mixing assembly, and a detection assembly. The tank 2 is mounted on the frame 1 and has a feed inlet 4 and a discharge outlet 5. The mixing assembly is used to mix the viscous liquid in the tank. The detection assembly includes an L-shaped tube 12, a float 10, and at least two sensing elements 9. The L-shaped tube 12 is disposed on the outer wall of the tank 2 and communicates with the tank 2. The float 10 is disposed inside the L-shaped tube 12. The sensing elements 9 are disposed on the outer wall of the L-shaped tube 12 and are spaced apart vertically. The mixing assembly includes a motor 7, a motor mounting base 6, and a mixing paddle 8. The motor mounting base 6 is fixed on the frame 1. The motor 7 is mounted on the motor mounting base 6 and is located above the tank 2. The mixing paddle 8 is disposed inside the tank 2 and connected to the motor 7. The mixing paddle 8 has a plurality of mixing blades 81, which are spaced apart along the axial direction of the mixing paddle 8 and have different lengths.

[0019] By connecting an L-shaped pipe 12 to the outside of the material tank 2 to form a U-shaped pipe, the liquid level in the external L-shaped pipe 12 is detected, thereby achieving the purpose of detecting the liquid level in the material tank 2. This effectively avoids interference from the stirring assembly and prevents the liquid level detection accuracy from decreasing due to liquid surface fluctuations. At the same time, by setting up a stirring assembly to continuously stir the viscous liquid in the material tank, the sedimentation of the viscous liquid is prevented. Furthermore, the use of stirring blades 81 with different length intervals effectively expands the stirring range and further prevents the sedimentation of the viscous liquid.

[0020] Specifically, since float 10 is located in a viscous liquid, floats that are too light or too small are prone to sticking together. Furthermore, viscous liquid dries easily, and after drying, debris from the viscous liquid falling between the float and the pipe can easily jam the float. Therefore, float 10 is a non-standard part, and its volume, weight, and dimensions need to be designed according to actual usage.

[0021] Specifically, the sensing element 9 is a magnetic switch, the float 10 contains a magnet 11, and there are two sensing elements 9. The sensing element 9 located at the upper end of the L-shaped tube 12 detects the liquid level as the stop-feeding level, and the sensing element 9 located at the lower end of the L-shaped tube 12 detects the liquid level as the feed level. When the upper sensing element 9 senses the signal transmitted by the float 10, it controls the feeding component to stop feeding material to the material box 2. When the lower sensing element 9 senses the signal transmitted by the float 10, it controls the feeding component to feed material to the material box 2, thereby achieving the purpose of automatic replenishment when material is insufficient and automatic stop when material is full.

[0022] Specifically, since the viscous liquid used in this embodiment is easy to dry, the device also includes a material tank cover 5, which is disposed on the upper end face of the material tank 2, and the material tank cover 5 is provided with a clearance hole to avoid the stirring component.

[0023] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A liquid level detection device for viscous liquid in a mixing tank, characterized in that, The system includes a frame (1), a hopper (2), a stirring assembly, and a detection assembly. The hopper (2) is mounted on the frame (1) and has a feed inlet (4) and a discharge outlet (5). The stirring assembly is used to stir the viscous liquid in the hopper. The detection assembly includes an L-shaped tube (12), a float (10), and at least two sensing elements (9). The L-shaped tube (12) is located on the outer wall of the hopper (2) and communicates with the hopper (2). The float (10) is located inside the L-shaped tube (12). The sensing elements (9) are located on the L-shaped tube. The outer wall of the tube (12) is spaced apart vertically; the stirring assembly includes a motor (7), a motor mounting base (6) and a stirring paddle (8). The motor mounting base (6) is fixed on the frame (1). The motor (7) is mounted on the motor mounting base (6) and located above the material box (2). The stirring paddle (8) is set inside the material box (2) and connected to the motor (7). The stirring paddle (8) is provided with several stirring blades (81). The stirring blades (81) are arranged at intervals along the axial direction of the stirring paddle (8) and have different lengths.

2. The liquid level detection device for viscous liquid in a mixing tank according to claim 1, characterized in that, The sensing element (9) is a magnetic switch, and the float (10) has a magnet (11) inside.

3. A liquid level detection device for viscous liquid in a mixing tank according to claim 1 or 2, characterized in that, There are two sensing elements (9). The sensing element (9) set at the upper end of the L-shaped tube (12) detects the liquid level as the stop supply liquid level, and the sensing element (9) set at the lower end of the L-shaped tube (12) detects the liquid level as the supply liquid level.

4. The liquid level detection device for viscous liquid in a mixing tank according to claim 1, characterized in that, It also includes a material box cover (5), which is located on the upper surface of the material box (2) and has a clearance hole for avoiding the stirring assembly.

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