Slurry conveying pipeline

Abstract

The utility model discloses a slurry conveying pipeline which comprises a first pipe body and a second pipe body. The second pipe body is arranged in the first pipe body in a sleeved mode, and the first pipe body and the second pipe body are spaced to form an interlayer; the electromagnetic coil is arranged in the interlayer, the electromagnetic coil is wound on the outer wall face of the second pipe body so as to conduct electromagnetic heating on the second pipe body and the interlayer, and the axial length of the electromagnetic coil on the second pipe body is smaller than the axial length of the interlayer on the second pipe body so that a cavity can be formed between the first pipe body and the second pipe body. According to the slurry conveying pipeline, the interlayer is arranged between the first pipe body and the second pipe body, and the heat preservation performance of the pipeline is improved. Meanwhile, the electromagnetic coil is wound on the second pipe body, and the slurry in the interlayer and the second pipe body is heated by utilizing the electromagnetic coil, so that the slurry in the pipeline has enough temperature, the adhesion of the slurry is prevented, the efficiency of a battery manufacturing process is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline manufacturing, and more specifically, to a slurry transportation pipeline. Background Art

[0002] The existing slurry transportation pipeline has poor heating and insulation effects, resulting in an annual increase in slurry, affecting the battery manufacturing process, reducing battery manufacturing efficiency, and increasing manufacturing costs. Utility Model Content

[0003] One purpose of the utility model is to provide a new technical solution for a slurry transport pipeline, which can at least solve the problems of poor heating and heat preservation effects of the slurry transport pipeline in the prior art.

[0004] According to a first aspect of the utility model, a slurry transport pipeline is provided, comprising: a first pipe body; a second pipe body, wherein the second pipe body is sleeved in the first pipe body, and the first pipe body and the second pipe body are spaced apart to form an interlayer; an electromagnetic coil, wherein the electromagnetic coil is arranged in the interlayer, and the electromagnetic coil is wound on the outer wall of the second pipe body to electromagnetically heat the second pipe body and the interlayer, and the axial length of the electromagnetic coil on the second pipe body is smaller than the axial length of the interlayer on the second pipe body to form a cavity between the first pipe body and the second pipe body.

[0005] Optionally, both the first tube body and the second tube body are straight tubes, and the electromagnetic coil is wound from one end of the second tube body toward the other end of the second tube body.

[0006] Optionally, both the first tube body and the second tube body are bent tubes, the electromagnetic coil is wound around two ends of the second tube body respectively, and the bending position of the bent tube forms the cavity.

[0007] Optionally, the inner diameter of the first tube is 10-15 mm larger than the outer diameter of the second tube.

[0008] Optionally, the first tube body is provided with a ceramic layer, and the thickness of the ceramic layer is 1-10 mm.

[0009] Optionally, a first temperature sensor is provided at a position of the first tube corresponding to the electromagnetic coil, and a portion of the first temperature sensor extends into the interlayer.

[0010] Optionally, a second temperature sensor is provided at a position of the first tube corresponding to the cavity, and a portion of the second temperature sensor extends into the second tube.

[0011] Optionally, when the slurry transport pipeline is a straight pipe, the first temperature sensor and the second temperature sensor are respectively close to two ends of the straight pipe.

[0012] Optionally, when the slurry transport pipeline is a curved pipe, the first temperature sensor is close to the end of the curved pipe, and the second temperature sensor is located at the bending position of the curved pipe.

[0013] Optionally, a ceramic layer is provided on the outer wall of the first tube body, and the inner wall is a metal tube; the second tube body is a metal tube; and flanges are provided at both ends of the slurry transport pipeline.

[0014] The slurry transport pipeline of the utility model has an interlayer between the first pipe body and the second pipe body to improve the thermal insulation performance of the pipeline. At the same time, an electromagnetic coil is wound around the second pipe body to heat the slurry in the interlayer and the second pipe body, thereby ensuring that the slurry in the pipeline has a sufficient temperature, preventing the slurry from sticking, improving the efficiency of the battery manufacturing process, and reducing the manufacturing cost.

[0015] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] Figure 1 It is a structural schematic diagram of a slurry transport pipeline according to an embodiment of the utility model;

[0018] Figure 2 is a cross-sectional view of a slurry transport pipeline according to an embodiment of the utility model;

[0019] Figure 3 is a structural schematic diagram of a second tube body according to an embodiment of the utility model;

[0020] Figure 4 It is another structural schematic diagram of the second tube body according to an embodiment of the utility model.

[0021] Reference numerals:

[0022] first tube body 10;

[0023] second tube body 20;

[0024] Electromagnetic coil 30;

[0025] Cavity 40;

[0026] A first temperature sensor 51; a second temperature sensor 52;

[0027] Flange 60. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0031] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0032] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0033] In the specification and claims of the utility model, if the term "first" or "second" is involved, it may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, "multiple" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the related objects are in an "or" relationship.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" involved should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The slurry transport pipeline according to the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0037] like Figure 1 and Figure 2 As shown, the slurry transport pipeline according to the embodiment of the utility model includes a first pipe body 10 , a second pipe body 20 and an electromagnetic coil 30 .

[0038] Specifically, the second tube body 20 is sleeved in the first tube body 10, and the first tube body 10 and the second tube body 20 are spaced apart to form an interlayer. The electromagnetic coil 30 is disposed in the interlayer, and the electromagnetic coil 30 is wound on the outer wall of the second tube body 20 to electromagnetically heat the second tube body 20 and the interlayer, and the axial length of the electromagnetic coil 30 on the second tube body 20 is less than the axial length of the interlayer on the second tube body 20, so as to form a cavity 40 between the first tube body 10 and the second tube body 20.

[0039] In other words, see Figure 1 and Figure 2 According to the embodiment of the utility model, the slurry transport pipeline is mainly composed of a first pipe body 10, a second pipe body 20 and an electromagnetic coil 30. The second pipe body 20 is sleeved in the first pipe body 10, and the first pipe body 10 and the second pipe body 20 are separated to form a sandwich layer, thereby increasing the heat preservation effect of the pipeline. Figure 2 and Figure 3 As shown, the electromagnetic coil 30 is wound inside the interlayer, and the electromagnetic coil 30 is wound on the outer wall of the second tube 20. By winding the electromagnetic coil 30 outside the first tube 10, electromagnetic heating is performed, so that the second tube 20 and the interlayer are preheated in advance, avoiding heat loss in the initial stage of slurry transportation, and further improving heat utilization efficiency.

[0040] In the present invention, the inner diameter, outer diameter, number of turns, and filling factor of the electromagnetic coil 30 can be specifically designed according to the heating object and heating requirements, effectively improving the heating accuracy. The electromagnetic coil 30 can be made of copper wire or aluminum wire with high conductivity to ensure that the coil current has less failure during the conduction process and improve the heating efficiency. In addition, copper wire with better conductivity is selected as the electromagnetic coil 30, so that the second tube 20 generates eddy currents in the alternating magnetic field, further generating heat.

[0041] like Figure 2 and Figure 3 As shown, the axial length of the electromagnetic coil 30 on the second tube 20 is less than the axial length of the interlayer on the second tube 20, ensuring that a cavity 40 is formed between the first tube 10 and the second tube 20. The heated air in the cavity 40 can have a reverse insulation effect on the slurry in the pipeline.

[0042] It should be noted that slurry is an important part of lithium battery production and preparation. The quality of slurry not only affects the difficulty of coating process, but also seriously affects the production rate cost and battery performance. The slurry is cooled to below 30℃ in the finished product tank for discharge, and then transported to the coating section by pipeline for the electrode process. The slurry is dried by heat to become the electrode.

[0043] Increasing the slurry temperature can significantly reduce the slurry viscosity based on the original slurry solid content, thereby achieving the purpose of increasing the solid content and reducing nmp (N-methylpyrrolidone). During the pipeline transportation of the slurry, a large amount of heat will diffuse into the external environment.

[0044] The utility model has the advantages of fast speed, high thermal efficiency, precise temperature control, energy saving and high efficiency by setting up interlayer and electromagnetic heating, and the liquid and electricity are separated, so the electricity can be used safely. Electromagnetic heating generates an alternating magnetic field through an electronic circuit board. When the alternating magnetic field is cut by an iron-containing magnetic material, heat energy generated by eddy currents appears, thereby achieving a heating effect. By transferring heat to the slurry, the purpose of increasing the temperature of the slurry and reducing the viscosity is achieved.

[0045] Therefore, according to the slurry transport pipeline of the embodiment of the utility model, an interlayer is arranged between the first tube body 10 and the second tube body 20 to improve the thermal insulation performance of the pipeline. At the same time, by winding the electromagnetic coil 30 on the second tube body 20, the electromagnetic coil 30 is used to heat the slurry in the interlayer and the second tube body 20, so as to ensure that the slurry in the pipeline has a sufficient temperature, prevent the slurry from sticking, improve the efficiency of the battery manufacturing process, and reduce the manufacturing cost.

[0046] According to an embodiment of the present invention, the first tube body 10 and the second tube body 20 are both straight tubes, and the electromagnetic coil 30 is wound from one end of the second tube body 20 toward the other end of the second tube body 20 .

[0047] That is to say, Figure 2 and Figure 3 As shown, the first tube body 10 and the second tube body 20 are both straight tubes, and the electromagnetic coil 30 is wound from one end of the second tube body 20 toward the other end of the second tube body 20. Both ends of the pipe are connected to wires for conducting alternating current, and the wires are connected to an external oscillator to control the heating temperature of the second tube body 20.

[0048] According to an embodiment of the present invention, the first tube body 10 and the second tube body 20 are both bent tubes, the electromagnetic coil 30 is respectively wound around two ends of the second tube body 20, and the bending position of the bent tube forms a cavity 40.

[0049] In other words, Figure 4 As shown, both the first tube body 10 and the second tube body 20 are bent tubes, and the electromagnetic coils 30 are respectively wound from the two ends of the second tube body 20, and the bending position of the bent tube forms a cavity 40. The bent tube can be designed as a right-angle elbow, and its function is to change the flow direction of the slurry. According to the flow demand, the pipe diameter can be changed here. The internal structure of the bent tube is consistent with the straight tube structure, and a sandwich structure is adopted. The two ends of the pipe are connected by flanges 60. In order to avoid severe heating due to winding too many coils at the inner bend corner, there is no coil winding at the bend corner, and the slurry temperature sensor is inserted in the blank space, which is kept warm by the sandwich air.

[0050] In some specific embodiments of the present invention, the inner diameter of the first tube body 10 is 10-15 mm larger than the outer diameter of the second tube body 20, ensuring that a sandwich is formed between the first tube body 10 and the second tube body 20. The first tube body 10 is provided with a ceramic layer, and the thickness of the ceramic layer is 1-10 mm to ensure the thermal insulation requirements of the first tube body 10.

[0051] In some specific embodiments of the present invention, Figures 1 to 4 As shown, a first temperature sensor 51 is provided at a position of the first tube body 10 corresponding to the electromagnetic coil 30, and a portion of the first temperature sensor 51 extends into the interlayer. The temperature in the interlayer is measured by the first temperature sensor 51. A second temperature sensor 52 is provided at a position of the first tube body 10 corresponding to the cavity 40, and a portion of the second temperature sensor 52 extends into the second tube body 20. The temperature of the slurry in the second tube body 20 can be measured by the second temperature sensor 52.

[0052] According to one embodiment of the utility model, Figures 1 to 3 As shown, when the slurry transport pipeline is a straight pipe, the first temperature sensor 51 and the second temperature sensor 52 are respectively close to the two ends of the straight pipe, and the temperature in the interlayer is measured by the first temperature sensor 51.

[0053] Alternatively, if Figure 4 As shown, when the slurry transport pipeline is a curved pipe, the first temperature sensor 51 is close to the end of the curved pipe, and the second temperature sensor 52 is located at the curved position of the curved pipe. The temperature of the slurry in the second pipe body 20 can be measured by the second temperature sensor 52.

[0054] According to an embodiment of the present invention, a ceramic layer is disposed on the outer wall of the first tube body 10, and the inner wall is a metal tube. The second tube body 20 is a metal tube, and flanges 60 are disposed at both ends of the slurry transport pipeline.

[0055] That is to say, the pipeline is provided with an interlayer, the inner pipeline (second tube body 20) is an iron tube or a metal tube doped with iron, and the outer pipeline (first tube body 10) is a metal tube with a ceramic layer on the outer wall. Among them, the outer diameter of the inner tube differs from the inner diameter of the outer tube by about 10mm-50mm, and the thickness of the ceramic layer is about 1-10mm. The purpose of designing this structure is that if the heat of the slurry in the inner pipeline is lost during transportation, the ceramic outer pipeline with poor thermal conductivity can lock the lost heat in the air of the interlayer, and the heat causes the air to heat up. The heated air in the interlayer can have a reverse insulation effect on the slurry in the inner pipeline.

[0056] There are flanges 60 at the head and tail of the pipeline to allow for tight connection between pipelines to prevent slurry from flowing out. There is room at one end of the flange 60 for no coil winding (the space is left for the second temperature sensor 52 to measure the temperature), and the slurry insulation in this link is heated by the interlayer air. There are screw holes all around the flange 60 to increase the upper limit of the slurry pressure in the pipeline. The outer pipeline contains a temperature measuring hole, and a temperature sensor can be installed. The probe is in the middle of the interlayer to detect the temperature of the air inside the interlayer. The inner pipeline contains a temperature measuring hole near the flange 60 to detect the slurry temperature of the inner pipeline and observe the slurry insulation effect of each pipeline. Each section of the pipeline is equipped with internal and external temperature sensors, which can quickly screen out abnormal pipelines and adjust the electromagnetic heating parameters accordingly.

[0057] In summary, according to the slurry transport pipeline of the embodiment of the utility model, an interlayer is arranged between the first tube body 10 and the second tube body 20 to improve the thermal insulation performance of the pipeline. At the same time, by winding the electromagnetic coil 30 on the second tube body 20, the electromagnetic coil 30 is used to heat the slurry in the interlayer and the second tube body 20, so as to ensure that the slurry in the pipeline has a sufficient temperature, prevent the slurry from sticking, improve the efficiency of the battery manufacturing process, and reduce the manufacturing cost.

[0058] Of course, for those skilled in the art, other structures of the slurry transport pipeline and its working principles are understandable and achievable, and will not be described in detail in the present utility model.

[0059] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A slurry transport pipeline, characterized in that: include: first tube body; a second tube body, wherein the second tube body is sleeved in the first tube body, and the first tube body and the second tube body are spaced apart to form a sandwich; An electromagnetic coil is arranged in the interlayer and is wound on the outer wall of the second tube body to electromagnetically heat the second tube body and the interlayer, and the axial length of the electromagnetic coil on the second tube body is smaller than the axial length of the interlayer on the second tube body to form a cavity between the first tube body and the second tube body.

2. The slurry transport pipeline according to claim 1, characterized in that: The first tube body and the second tube body are both straight tubes, and the electromagnetic coil is wound from one end of the second tube body toward the other end of the second tube body.

3. The slurry transport pipeline according to claim 1, characterized in that: The first tube body and the second tube body are both bent tubes, the electromagnetic coil is respectively wound around two ends of the second tube body, and the bending position of the bent tube forms the cavity.

4. The slurry transport pipeline according to claim 1, characterized in that: The inner diameter of the first tube is 10-15 mm larger than the outer diameter of the second tube.

5. The slurry transport pipeline according to claim 1, characterized in that: The first tube body is provided with a ceramic layer, and the thickness of the ceramic layer is 1-10 mm.

6. The slurry transport pipeline according to claim 1, characterized in that: A first temperature sensor is disposed at a position of the first tube corresponding to the electromagnetic coil, and a portion of the first temperature sensor extends into the interlayer.

7. The slurry transport pipeline according to claim 6, characterized in that: A second temperature sensor is disposed at a position of the first tube corresponding to the cavity, and a portion of the second temperature sensor extends into the second tube.

8. The slurry transport pipeline according to claim 7, characterized in that: When the slurry transport pipeline is a straight pipe, the first temperature sensor and the second temperature sensor are respectively close to two ends of the straight pipe.

9. The slurry transport pipeline according to claim 7, characterized in that: In the case where the slurry transport pipeline is a curved pipe, the first temperature sensor is close to the end of the curved pipe, and the second temperature sensor is located at the bending position of the curved pipe.

10. The slurry transport pipeline according to claim 1, characterized in that: The outer wall of the first tube body is provided with a ceramic layer, the inner wall is a metal tube, the second tube body is a metal tube, and flanges are respectively provided at both ends of the slurry transport pipeline.

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