Liquid level detection device for viscous liquid in stirring material box and use method

Abstract

The invention discloses a liquid level detection device for stirring viscous liquid in a material box and a using method, the liquid level detection device comprises a rack, the material box, a stirring assembly and a detection assembly, the material box is installed on the rack and provided with a feeding port and a pumping port, the stirring assembly is used for stirring the viscous liquid in the material box, the detection assembly comprises an L-shaped pipe, a floating block and two sensing elements, and the L-shaped pipe is connected with the floating block. The L-shaped pipe is arranged on the outer wall of the material box and is communicated with the material box, the floating block is arranged in the L-shaped pipe, the two sensing elements are arranged on the outer wall of the L-shaped pipe and are vertically arranged at an interval, the sensing element arranged at the upper end of the L-shaped pipe detects that the liquid level is a feeding stopping liquid level, and the sensing element arranged at the lower end of the L-shaped pipe detects that the liquid level is a feeding liquid level. An L-shaped pipe is communicated with the outside of the feed box to form a U-shaped pipe with the feed box, the liquid level of the external L-shaped pipe is detected, so that the purpose of detecting the liquid level of the feed box is achieved, interference of a stirring assembly is effectively avoided, and meanwhile, the situation that the liquid level detection accuracy is reduced due to liquid level fluctuation is avoided.

Description

Technical Field

[0001] The invention relates to the field of viscous liquid level detection, and in particular to a device for detecting the level of viscous liquid in a stirring material box and a use method thereof. Background Art

[0002] In the production process of electrolytic aluminum, aluminum prebaked anode high temperature protective coating is used to prevent oxidation and resist high temperature corrosion of electrolytes. However, due to the characteristics of high viscosity, easy sedimentation, and easy air drying, the storage box needs to be stirred continuously to prevent the coating from settling, which makes it extremely difficult to detect the liquid level in the mixing box. Some equipment manufacturers use flow valves to detect whether the material box is short of material, but when the equipment stops, the paint dries easily and the baffle inside the flow valve is bonded, resulting in detection failure. The liquid level sensor is installed on the box, but because the paint is viscous, it is easy to cover the switch with a layer, resulting in false detection alarm. Because there is a stirring paddle inside the material box, and the liquid level fluctuates greatly during stirring, it is impossible to install a float switch inside for detection. At present, the feeding method of the automatic spray paint box for electrolytic aluminum is still manual observation of the liquid level. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a liquid level detection device and a method for using a viscous liquid in a stirring box, which ensures that the liquid level position can be accurately measured when the viscous liquid is stirred, while achieving the effects of unattended operation, automatic stopping when full and automatic replenishment when insufficient.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a liquid level detection device for stirring a viscous liquid in a material box, comprising a frame, a material box, a stirring assembly and a detection assembly, the material box is installed on the frame and is provided with a feed port and a discharge port, the stirring assembly is used to stir the viscous liquid in the material box, the detection assembly comprises an L-shaped tube, a floating block and two sensing elements, the L-shaped tube is arranged on the outer wall of the material box and is connected to the material box, the floating block is arranged in the L-shaped tube, the two sensing elements are arranged on the outer wall of the L-shaped tube and are spaced apart up and down, the sensing element arranged at the upper end of the L-shaped tube detects a liquid level as a stop feeding liquid level, and the sensing element arranged at the lower end of the L-shaped tube detects a liquid level as a feeding liquid level.

[0005] The induction element is a magnetic switch, and a magnet is arranged inside the floating block.

[0006] The stirring assembly includes a motor, a motor mounting seat and a stirring paddle, wherein the motor mounting seat is fixed on a frame, the motor is mounted on the motor mounting seat and is located above the material box, and the stirring paddle is arranged in the material box and connected to the motor.

[0007] The stirring paddle is provided with a plurality of stirring blades, and the stirring blades are arranged at intervals along the axial direction of the stirring paddle and have different lengths.

[0008] It also includes a material box cover, which is arranged on the upper end surface of the material box and is provided with an avoidance hole for avoiding the stirring component.

[0009] A method for using a liquid level detection device for a viscous liquid in a mixing tank specifically comprises the following steps: S1. Use a peristaltic pump to deliver the viscous liquid from the feed port into the feed box, and start the stirring component; S2, continue to add materials, the floating block follows the surface of the viscous liquid, the L-shaped tube is made of transparent material, when the sensing element at the upper end of the L-shaped tube detects the position of the floating block, the peristaltic pump stops feeding; S3, the viscous liquid is pumped out from the pumping port, and the float follows the liquid level of the viscous liquid to drop. When the sensing element at the lower end of the L-shaped tube detects the position of the float, the peristaltic pump automatically starts to feed; S4. Repeat steps S2-S3 until the viscous liquid meets the target capacity.

[0010] Beneficial effects of the present invention: Compared with the prior art, the present invention connects an L-shaped tube outside the material box to form a U-shaped tube, and achieves the purpose of detecting the liquid level of the material box by detecting the liquid level of the external L-shaped tube, effectively avoiding the interference of the stirring component and avoiding the decrease in the accuracy of liquid level detection due to liquid level fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 A top view of the present invention; Figure 3 for Figure 2 A-direction sectional view; In the figure: 1. frame; 2. material box; 3. material extraction port; 4. material feeding port; 5. material box cover; 6. motor mounting base; 7. motor; 8. stirring paddle; 81. stirring blade; 9. induction element; 10. floating block; 11. magnet; 12. L-shaped tube. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0013] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments. Example

[0014] like Figures 1 to 3 As shown, the present invention provides a liquid level detection device for stirring a viscous liquid in a material box, comprising a frame 1, a material box 2, a stirring component and a detection component, wherein the material box 2 is installed on the frame 1 and is provided with a feed port 4 and a discharge port 5, the stirring component is used to stir the viscous liquid in the material box, the detection component comprises an L-shaped tube 12, a floating block 10 and two sensing elements 9, the L-shaped tube 12 is arranged on the outer wall of the material box 2 and is connected to the material box 2, the floating block 10 is arranged in the L-shaped tube 12, the two sensing elements 9 are arranged on the outer wall of the L-shaped tube 12 and are spaced apart from each other, the sensing element 9 arranged at the upper end of the L-shaped tube 12 detects a liquid level as a stop feeding liquid level, and the sensing element 9 arranged at the lower end of the L-shaped tube 12 detects a liquid level as a feeding liquid level.

[0015] The method for using the liquid level detection device for a viscous liquid in a stirring tank comprises the following specific steps: S1, using a peristaltic pump to deliver the viscous liquid from the feed port 4 into the feed box 2, and start the stirring component; S2, continue to add materials, the floating block 10 floats on the surface of the viscous liquid, the L-shaped tube is made of transparent material, when the sensing element 9 at the upper end of the L-shaped tube 12 detects the position of the floating block 10, the peristaltic pump stops feeding; S3, the viscous liquid is pumped out from the pumping port 5, and the float 10 follows the liquid level of the viscous liquid to drop. When the sensing element 9 at the lower end of the L-shaped tube 12 detects the position of the float 10, the peristaltic pump automatically starts to feed; S4. Repeat steps S2-S3 until the viscous liquid meets the target capacity.

[0016] By connecting an L-shaped tube 12 outside the material box 2 to form a U-shaped tube with the material box 2, the liquid level of the external L-shaped tube 12 is detected to achieve the purpose of detecting the liquid level of the material box 2, effectively avoiding the interference of the stirring component and preventing the liquid level fluctuation from causing a decrease in the accuracy of liquid level detection.

[0017] Specifically, the sensing element 9 is a magnetic switch, and a magnet 11 is provided inside the floating block 10. When the sensing element 9 at the upper end senses the signal transmitted by the floating block 10, the peristaltic pump is controlled to stop feeding the material box 2, and when the sensing element 9 at the lower end senses the signal transmitted by the floating block 10, the peristaltic pump is controlled to feed the material box 2, thereby achieving the purpose of automatic replenishment when the material is insufficient and automatic stop when the material is full.

[0018] Specifically, since the float 10 is located in the viscous liquid, a float that is too light and too small is easy to be adhered, and the viscous liquid is easy to air dry, and after air drying, the viscous liquid debris falls between the float and the tube and easily jams the float. Therefore, the float 10 is a non-standard part, and the volume, weight and size of the float 10 need to be designed according to actual usage.

[0019] Specifically, the stirring assembly includes a motor 7, a motor mounting seat 6 and a stirring paddle 8, wherein the motor mounting seat 6 is fixed on the frame 1, the motor 7 is mounted on the motor mounting seat 6 and is located above the material box 2, and the stirring paddle 8 is arranged in the material box 2 and connected to the motor 7. The stirring paddle 8 is provided with a plurality of stirring blades 81, and the stirring blades 81 are arranged at intervals along the axial direction of the stirring paddle 8 and have different lengths. The stirring paddle 8 is driven by the motor 7 to continuously stir the viscous liquid in the material box 2 to prevent the viscous liquid from depositing. At the same time, the stirring blades 81 arranged at intervals of different lengths are used to effectively expand the stirring range and further prevent the viscous liquid from depositing.

[0020] Specifically, since the viscous liquid used in this embodiment is easy to air-dry, the device also includes a material box cover 5, which is arranged on the upper end surface of the material box 2, and is provided with an avoidance hole for avoiding the stirring component.

[0021] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A liquid level detection device for a viscous liquid in a stirring tank, characterized in that: The invention comprises a frame (1), a material box (2), a stirring assembly and a detection assembly. The material box (2) is mounted on the frame (1) and is provided with a feeding port (4) and a material extraction port (5). The stirring assembly is used to stir the viscous liquid in the material box. The detection assembly comprises an L-shaped tube (12), a floating block (10) and two sensing elements (9). The L-shaped tube (12) is arranged on the outer wall of the material box (2) and is connected to the material box (2). The floating block (10) is arranged in the L-shaped tube (12). The two sensing elements (9) are arranged on the outer wall of the L-shaped tube (12) and are arranged with an interval up and down. The sensing element (9) arranged at the upper end of the L-shaped tube (12) detects a liquid level as a stop feeding liquid level, and the sensing element (9) arranged at the lower end of the L-shaped tube (12) detects a liquid level as a feeding liquid level.

2. A liquid level detection device for a viscous liquid in a stirring tank according to claim 1, characterized in that: The sensing element (9) is a magnetic switch, and a magnet (11) is provided inside the floating block (10).

3. The liquid level detection device for viscous liquid in a stirring tank according to claim 1, characterized in that: The stirring assembly comprises a motor (7), a motor mounting seat (6) and a stirring paddle (8); the motor mounting seat (6) is fixed on the frame (1); the motor (7) is mounted on the motor mounting seat (6) and is located above the material box (2); and the stirring paddle (8) is arranged in the material box (2) and is connected to the motor (7).

4. A liquid level detection device for a viscous liquid in a stirring tank according to claim 4, characterized in that: The stirring paddle (8) is provided with a plurality of stirring blades (81), and the stirring blades (81) are arranged at intervals along the axial direction of the stirring paddle (8) and have different lengths.

5. The liquid level detection device for viscous liquid in a stirring tank according to claim 1, characterized in that: It also comprises a material box cover (5), wherein the material box cover (5) is arranged on the upper end surface of the material box (2), and the material box cover (5) is provided with an avoidance hole for avoiding the stirring component.

6. A method for using the liquid level detection device for a viscous liquid in a stirring tank according to any one of claims 1 to 5, characterized in that: The specific steps include: S1, using a peristaltic pump to deliver the viscous liquid from the feed port (4) into the feed box (2), and start the stirring component; S2, continuously adding material, the floating block (10) floats on the surface of the viscous liquid, the L-shaped tube is made of transparent material, and when the sensing element (9) at the upper end of the L-shaped tube (12) detects the position of the floating block (10), the peristaltic pump stops feeding; S3, the viscous liquid is drawn out from the extraction port (5), and the float (10) follows the liquid level of the viscous liquid to drop. When the sensing element (9) at the lower end of the L-shaped tube (12) detects the position of the float (10), the peristaltic pump automatically starts to feed the material; S4. Repeat steps S2-S3 until the viscous liquid meets the target capacity.

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