Material tank weighing system with calibration function

Abstract

The utility model relates to the technical field of material weighing, in particular to a material tank weighing system with a calibration function, which comprises a rack, a tank body arranged on the rack, a weighing system arranged between the rack and the tank body and used for weighing the tank body, and an integrating instrument connected with the weighing system, and the loading device can apply a standard load to the tank body before loading / unloading each time and remove the standard load after recording weighing data. The device can calibrate the indicating value error in a small range so as to determine the indicating value error of a material tank weighing system during material loading / unloading, and the accuracy of step-by-step weighing is improved.

Description

Technical Field

[0001] This utility model relates to the field of material weighing technology, and in particular to a material tank weighing system with calibration function. Background Technology

[0002] Material tank weighing systems are widely used in production sites in industries such as chemical, food, pharmaceutical, tobacco, new energy, and semiconductor. They are used for real-time weight monitoring and measurement of materials (including liquids, powders, or granules) inside closed or semi-closed tanks such as storage tanks, reaction vessels, and material containers. These systems typically consist of a tank, a weighing module (including load cells), a weighing indicator, a signal processing unit, and peripheral equipment. Their working principle is as follows: the load cells convert the weight of the tank and its internal materials into an electrical signal, which is then calculated by the signal processing unit and displayed by the indicator.

[0003] In many production and experimental scenarios, materials in material tanks are often added or extracted in specific proportions or by weight. For example, in chemical synthesis, different raw materials are released from material tanks in precise proportions to mix and react, ensuring the accuracy of the reaction and the quality of the product. In food processing, various ingredients are taken from material tanks by weight to ensure the stability of food flavor and nutritional components. This ensures the standardization of the process, the consistency of results, and the quality of the product; therefore, it is crucial to ensure the accuracy of the indicated values ​​within a small range when using material tanks.

[0004] To ensure accurate weighing, calibration is necessary. Traditional calibration methods are simply periodic calibrations, such as weighing a standard weight before each weighing or after a period of use to check if the displayed value is the same as the weight's value, thus determining whether the weighing is accurate. This type of testing method can only simply determine whether the weighing system is accurate. For weighing systems that require adding or unloading materials in stages, small differences can have an impact. Utility Model Content

[0005] The purpose of this invention is to solve the problem that traditional calibration methods are not applicable when it comes to the accuracy of the indication error of material tanks within a small range in the existing technology, and to propose a material tank weighing system with calibration function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A material tank weighing system with calibration function includes a frame, a tank mounted on the frame, a weighing system mounted between the frame and the tank for weighing the tank, and an integrator connected to the weighing system. A loading device is installed between the tank and the frame, which can apply a standard load to the tank before each loading / unloading and remove the standard load after recording the weighing data.

[0008] The loading device includes a suspension component and at least two sets of loading units. The loading units are suspended on the outside of the tank by the suspension component, and multiple sets of loading units are distributed at equal angles around the tank.

[0009] The loading unit includes a weight and a power telescopic cylinder. The weight is suspended on the outside of the tank by a suspension device, and a gap is left between the weight and the outer wall of the tank. The bottom of the power telescopic cylinder is supported on the frame or the ground by a support plate. The top of the telescopic end of the power telescopic cylinder is supported on the bottom of the weight. The power telescopic cylinder can lift or release the weight.

[0010] The loading unit includes a weight cover that corresponds to each weight. The bottom of the weight cover is open. The upper part of the weight cover is connected to a suspension device via a hanging ring. The lower part of the weight cover is connected to the weight via a connecting rope. The weight cover and the weight are arranged coaxially. The outer diameter of the weight cover is larger than the outer diameter of the weight.

[0011] The outer diameter of the weight is smaller than the inner diameter of the inner cavity of the weight cover.

[0012] The suspension component is a strap assembly, which is at least partially supported on the top of the tank, and the loading unit is suspended below the strap assembly on the periphery.

[0013] The strap assembly includes two horizontal straps, a vertical strap connecting the two horizontal straps, and an annular strap. Parts of the horizontal straps and the vertical straps are supported on the top of the tank. The horizontal straps have extensions extending to the periphery of the tank. The annular straps are fitted around the periphery of the tank and are fixed to the extensions. The loading unit is suspended below the annular straps.

[0014] The present invention proposes a material tank weighing system with calibration function, which has the following advantages: the device can calibrate the indication error within a small range to determine the indication error of the material tank weighing system during loading / unloading, thereby improving the accuracy of step-by-step weighing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0016] Figure 2 This is a structural schematic diagram of one embodiment of the loading unit of this utility model.

[0017] In the diagram: 1. Tank body; 2. Loading device; 3. Loading unit; 4. Inlet; 5. Outlet; 6. Suspension component; 7. Horizontal strap; 8. Extension strap; 9. Vertical strap; 10. Circular strap; 11. Lifting ring; 12. Weight cover; 13. Connecting rope; 14. Weight; 15. Power telescopic cylinder; 16. Support plate; 17. Integrator; 18. Camera; 19. Laptop. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-2 A material tank weighing system with calibration function includes a frame, a tank 1 installed on the frame, a weighing system installed between the frame and the tank for weighing the tank, and an integrator connected to the weighing system. In one embodiment, the tank 1 may have a feed inlet 4 at the top and a discharge outlet 5 at the bottom. A loading device 2 is installed between the tank 1 and the frame. The loading device 2 can apply a standard load to the tank before each loading / unloading and remove the standard load after recording the weighing data.

[0020] The tank 1 is fixedly mounted on the frame, and the tank's mass information is collected in real time by a weighing system installed between the frame and the tank. The weighing system transmits the collected data to the integrator 17 for signal processing and value display. It can also be used in conjunction with a camera 18 and a laptop 19 for data reading and analysis.

[0021] The loading device 2 of this device can apply a standard load to the tank before each loading / unloading and remove the standard load after recording the weighing data.

[0022] In a scenario where the tank is loaded in stages, the standard load cell is loaded from zero, then the standard load cell is unloaded, material is loaded and adjusted to give a value approximately the same as that of the standard load cell, the standard load cell is loaded again, and then the standard load cell is unloaded. The above steps are repeated to load the material in stages to the full scale or close to the full scale.

[0023] Alternatively, start loading the standard load cell from zero, then unload the standard load cell, load the material to 10% of full capacity, load the standard load cell again, then unload the standard load cell, load the material to 20% of full capacity, and repeat the above steps to load the material to other load points in stages until full capacity or close to full capacity.

[0024] This device can also be used to unload to zero in reverse order.

[0025] This device can calibrate the indication error within a small range to determine the indication error of the material tank weighing system during loading / unloading, thereby improving the accuracy of step-by-step weighing.

[0026] The loading device 2 includes a suspension member 6 and at least two sets of loading units 3. The loading units 3 are suspended on the outside of the tank 1 by the suspension member 6. Multiple sets of loading units 3 are distributed at equal angles around the tank 1. This allows the suspension mass to be more evenly distributed around the tank 1 when the loading units 3 are suspended, thereby improving the accuracy of the calibration.

[0027] The loading unit 3 includes a weight 14 and a power telescopic cylinder 15. The weight 14 is suspended on the outside of the tank 1 by a suspension member 6, and a gap is left between the weight 14 and the outer wall of the tank 1. The bottom of the power telescopic cylinder 15 is supported on the frame or the ground by a support plate 16. The top of the telescopic end of the power telescopic cylinder 15 is supported on the bottom of the weight 14. The power telescopic cylinder 15 can lift or release the weight 14.

[0028] The weight 14 is suspended on the outside of the tank 1 by the suspension member 6, maintaining a certain gap with the outer wall of the tank 1. The bottom of the power telescopic cylinder 15 is supported on the frame or the ground by the support plate 16, and the top of its telescopic end abuts against the bottom of the weight 14. When a standard load needs to be applied, the power telescopic cylinder 15 retracts, allowing the weight 14 to hang naturally and transfer the force of gravity to the tank 1, thereby achieving the loading of the standard load; after calibration, the power telescopic cylinder 15 extends upward, supporting the weight 14 so that the weight does not exert pressure on the tank 1, thereby completing the unloading of the standard load. The lifting and lowering control of the weight 14 is achieved through the power telescopic cylinder 15, enabling the loading and releasing of the weight without contacting the tank 1. The operation is simple and the response is rapid, making it suitable for frequent calibration needs.

[0029] The loading unit 3 includes a weight cover 12 corresponding to each weight 14. The bottom of the weight cover 12 is open. The upper part of the weight cover 12 is connected to the suspension member 6 through the hanging ring 11. The lower part of the weight cover 12 is connected to the weight 14 through the connecting rope 13. The weight cover 12 and the weight 14 are arranged on the same axis. The outer diameter of the weight cover 12 is larger than the outer diameter of the weight 14.

[0030] The bottom of the weight cover 12 is open, and the upper part of the cover is connected to the suspension member 6 via a hanging ring 11 to form a stable suspension structure. The lower part of the weight cover 12 is connected to the weight 14 via a connecting rope 13. The weight cover 12 and the weight 14 are set along the same axis and kept vertically aligned. Since the outer diameter of the weight cover 12 is larger than the outer diameter of the weight 14, the outer wall of the weight cover 12 can be supported on the outer wall surface of the tank 1 when suspended, thus keeping the weight 14 in a suspended state. A gap is always maintained between the weight 14 and the outer wall of the tank 1 to prevent the weight from contacting the tank. As a positioning support, the weight cover 12 can reliably suspend the weight 14 in the non-calibration state, preventing it from causing misloading of the tank 1.

[0031] The outer diameter of the weight 14 is smaller than the inner diameter of the inner cavity of the weight cover 12, making it easier to store the weight 14 through the weight cover 12.

[0032] The suspension component 6 is a strap assembly, which is at least partially supported on the top of the tank body 1. The loading unit 3 is suspended below the strap assembly on the periphery. The strap assembly includes two horizontal straps 7, a vertical strap 9 connecting the two horizontal straps 7, and an annular strap 10. Parts of the horizontal straps 7 and the vertical straps 9 are supported on the top of the tank body 1. The horizontal straps 7 have extension straps 8 extending to the periphery of the tank body 1. The annular strap 10 is fitted around the periphery of the tank body 1 and is fixed to the extension straps 8. The loading unit 3 is suspended below the annular strap 10.

[0033] The strap assembly is at least partially supported on the top of the tank 1, used to fix the loading unit 3 to its outer periphery of the tank 1. A portion of the horizontal strap 7 and the vertical strap 9 are laid together on the top of the tank 1, providing stable support for the strap assembly. One end of the horizontal strap 7 has an extension strap 8 that extends along the outer periphery of the tank 1 and is fixedly connected to the annular strap 10. The strap assembly is fixed through a flexible structural combination, eliminating the need for drilling or welding in the tank 1. It is suitable for tanks of different materials and shapes, including cylindrical, elliptical, or square tanks. Secondly, the strap structure can be flexibly adjusted according to the tank size, making installation simple and quick, and disassembly convenient. Thirdly, the strap assembly distributes force evenly, effectively supporting the load of the loading unit 3 and maintaining its stable position, ensuring accurate force transmission when the weight 14 is loaded, further improving the reliability and repeatability of weighing calibration. The overall structure requires no modification to the tank structure, possessing good on-site adaptability and engineering feasibility.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material tank weighing system with calibration function, comprising a frame, a tank (1) mounted on the frame, a weighing system mounted between the frame and the tank for weighing the tank, and an integrator connected to the weighing system, characterized in that, A loading device (2) is installed between the tank (1) and the frame. The loading device (2) can apply a standard load to the tank before each loading / unloading and remove the standard load after recording the weighing data.

2. The material tank weighing system with a calibration function according to claim 1, characterized in that, The loading device (2) includes a suspension member (6) and at least two sets of loading units (3). The loading units (3) are suspended on the outside of the tank body (1) by the suspension member (6), and multiple sets of loading units (3) are distributed at equal angles around the tank body (1).

3. The material tank weighing system with a calibration function according to claim 2, characterized in that, The loading unit (3) includes a weight (14) and a power telescopic cylinder (15). The weight (14) is suspended on the outside of the tank (1) by a suspension member (6), and there is a gap between the weight (14) and the outer wall of the tank (1). The bottom of the power telescopic cylinder (15) is supported on the frame or the ground by a support plate (16). The top of the telescopic end of the power telescopic cylinder (15) is supported on the bottom of the weight (14). The power telescopic cylinder (15) can lift the weight (14) or release the weight (14).

4. The material tank weighing system with a calibration function according to claim 3, characterized in that, The loading unit (3) includes a weight cover (12) corresponding to each weight (14). The bottom of the weight cover (12) is open. The upper part of the weight cover (12) is connected to the suspension member (6) through a hanging ring (11). The lower part of the weight cover (12) is connected to the weight (14) through a connecting rope (13). The weight cover (12) and the weight (14) are arranged on the same axis. The outer diameter of the weight cover (12) is larger than the outer diameter of the weight (14).

5. The material tank weighing system with a calibration function according to claim 4, characterized in that, The outer diameter of the weight (14) is smaller than the inner diameter of the inner cavity of the weight cover (12).

6. A material tank weighing system with a calibration function according to any one of claims 2-5, characterized in that, The suspension member (6) is a strap assembly, which is at least partially supported on the top of the tank (1), and the loading unit (3) is suspended below the strap assembly on the periphery.

7. The material tank weighing system with a calibration function according to claim 6, characterized in that, The strap assembly includes two horizontal straps (7), a vertical strap (9) connecting the two horizontal straps (7), and an annular strap (10). Parts of the horizontal straps (7) and the vertical straps (9) are supported on the top of the tank body (1). The horizontal straps (7) have extension straps (8) extending to the periphery of the tank body (1). The annular strap (10) is fitted around the periphery of the tank body (1) and is fixed to the extension straps (8). The loading unit (3) is suspended below the annular strap (10).

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