Slurry rheology control equipment

Abstract

The invention relates to the technical field of lithium battery coating systems, in particular to slurry rheology control equipment. The slurry rheology control equipment provided by the invention comprises a slurry conveying pipeline, an inductance temperature control device and a water bath temperature control device, the inductance temperature control device and the water bath temperature control device are sequentially arranged on the slurry conveying pipeline in the conveying direction of slurry in the slurry conveying pipeline; the inductance temperature control device is used for heating slurry in the slurry conveying pipeline from an initial temperature to a first temperature interval where a target temperature is located, the water bath temperature control device is used for exchanging heat of the slurry in the slurry conveying pipeline to a second temperature interval where the target temperature is located, and the first temperature interval and the second temperature interval partially coincide. The temperature of the slurry is increased, the fluidity of the slurry is remarkably improved, the length of a drying oven can be shortened, the coating and drying time is shortened, the thermal power of the drying oven is reduced, the drying time is shortened due to the higher solid content of the slurry, namely, the high-temperature and high-solid-content slurry has the higher coating speed, and the coating productivity is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery coating systems, and in particular to a slurry rheology control device. Background Art

[0002] Coating is one of the key processes in the production of lithium battery pole pieces. The main purpose of this process is to evenly coat the slurry with high solid content, good viscosity and good fluidity on the positive and negative pole pieces through the die head. Within a certain range, the higher the solid content of the slurry and the thicker the coating on the pole piece, the higher the battery capacity.

[0003] In the existing feeding system, when the coating thickness is constant, by increasing the solid content of the slurry, the drying time entering the oven can be shortened, the number of ovens can be reduced, and energy consumption can be saved.

[0004] However, increasing the solid content will reduce the fluidity of the slurry, resulting in poor uniformity of the coating surface density. Summary of the invention

[0005] The purpose of the present invention is to provide a slurry rheology control device to solve the technical problem that in the existing feeding system, when the coating thickness is constant, increasing the solid content will cause the fluidity of the slurry to decrease, thereby resulting in poor uniformity of the coating surface density.

[0006] The present invention provides a slurry rheology control device, comprising: a slurry conveying pipeline, an inductive temperature control device and a water bath temperature control device;

[0007] Along the conveying direction of the slurry in the slurry conveying pipeline, the inductive temperature control device and the water bath temperature control device are sequentially arranged on the slurry conveying pipeline;

[0008] The inductive temperature control device is used to heat the slurry in the slurry conveying pipeline from an initial temperature to a first temperature range where a target temperature is located, and the water bath temperature control device is used to exchange heat of the slurry in the slurry conveying pipeline to a second temperature range where a target temperature is located, and the first temperature range partially overlaps with the second temperature range.

[0009] As a further technical solution, the inductive temperature control device includes an electromagnetic induction coil, a power controller and a temperature controller;

[0010] The electromagnetic induction coil is wrapped around the outside of the slurry conveying pipeline and is electrically connected to the power controller and the temperature controller;

[0011] The power controller is used to adjust the current of the electromagnetic induction coil, and the temperature controller controls the power controller through a temperature control system.

[0012] As a further technical solution, the electromagnetic induction coil includes a first coil group and a second coil group, and along the conveying direction of the slurry in the slurry conveying pipeline, the first coil group is located upstream of the second coil group;

[0013] The first coil group includes at least one first coil, the second coil group includes at least one second coil, and the first coil and the second coil are both wrapped around the outside of the slurry conveying pipeline, and the current of the first coil is greater than the current of the second coil;

[0014] The first coil group is used to heat the slurry in the slurry conveying pipeline from an initial temperature to a preset intermediate temperature, and the second coil group is used to heat the slurry in the slurry conveying pipeline to a first temperature range where the target temperature is located.

[0015] As a further technical solution, the slurry conveying pipeline is bent to form at least two layers;

[0016] The first coil group and the second coil group are respectively located in two adjacent layers of the slurry conveying pipeline.

[0017] As a further technical solution, the inductive temperature control device also includes a thermal insulation layer, and the thermal insulation layer is arranged between the electromagnetic induction coil and the slurry conveying pipeline.

[0018] As a further technical solution, the water bath temperature control device includes a soaking plate;

[0019] A circulating water channel and a slurry channel are provided in the heat spreader. The circulating water channel is used to communicate with an external circulating water system, and the slurry channel is connected to the slurry conveying pipeline. The hot water in the circulating water channel can exchange heat with the slurry in the slurry channel.

[0020] As a further technical solution, the vapor chamber includes a first plate body and a second plate body which are arranged opposite to each other, and a circulating water flow channel is arranged in the first plate body and the second plate body;

[0021] The slurry flow channel is disposed in the first plate body, and / or the slurry flow channel is disposed in the second plate body.

[0022] As a further technical solution, the slurry flow channel includes a feed inlet, a discharge outlet and a plurality of flow paths;

[0023] The flow paths are arc-shaped, and one end of all the flow paths is connected to the feed port, and the other end of all the flow paths is connected to the discharge port.

[0024] As a further technical solution, the vapor chamber has a first side and a second side opposite to each other;

[0025] The water bath temperature control device further comprises a first heat insulating cover plate, the first heat insulating cover plate is arranged to cover the heat soaking plate and is located on the first side, and a first heat insulating interlayer is formed between the first heat insulating cover plate and the heat soaking plate;

[0026] and / or;

[0027] The water bath temperature control device further includes a second heat insulation cover plate, which is arranged on the heat spreader and located on the second side, and a second heat insulation interlayer is formed between the second heat insulation cover plate and the heat spreader.

[0028] As a further technical solution, it also includes a transfer vehicle and a box, wherein the box is arranged on the transfer vehicle;

[0029] The slurry conveying pipeline is arranged in the box body, the inductive temperature control device is arranged in the box body, and the water bath temperature control device is arranged on the top of the box body.

[0030] Compared with the prior art, the slurry rheology control device provided by the present invention has the following technical advantages:

[0031] The slurry rheology control equipment provided by the present invention comprises: a slurry conveying pipeline, an inductive temperature control device and a water bath temperature control device; along the conveying direction of the slurry in the slurry conveying pipeline, the inductive temperature control device and the water bath temperature control device are sequentially arranged on the slurry conveying pipeline; the inductive temperature control device is used to heat the slurry in the slurry conveying pipeline from an initial temperature to a first temperature range where a target temperature is located, and the water bath temperature control device is used to exchange heat of the slurry in the slurry conveying pipeline to a second temperature range where the target temperature is located, and the first temperature range and the second temperature range partially overlap.

[0032] The slurry in the slurry conveying pipeline is heated from the initial temperature to the first temperature range where the target temperature is located by an inductive temperature control device, and the slurry in the slurry conveying pipeline is heat-exchanged to the second temperature range where the target temperature is located by a water bath temperature control device, and the first temperature range and the second temperature range partially overlap, so that the slurry in the slurry conveying pipeline is closer to the target temperature. On the one hand, the slurry temperature is increased, and the slurry fluidity is significantly improved. Therefore, when the coating thickness is constant, the fluidity of the slurry can be maintained while increasing the solid content of the slurry, or the slurry can be allowed to have a higher solid content when the slurry fluidity is constant; on the other hand, the cooling system in the traditional transfer slurry transportation can be eliminated. Since the temperature of the slurry before entering the oven is higher than that of the traditional room temperature slurry entering the oven, the length of the oven can be shortened, the coating drying time and the thermal power of the oven can be reduced, which greatly saves the electricity consumption of the coating workshop, and the slurry is more High solid content shortens the drying time, that is, high-temperature and high-solid content slurry has a higher coating speed, which greatly improves the coating capacity. Under the combined effect of the two, the energy consumption of the coating process is greatly reduced; on the other hand, the inductive temperature control device heats the slurry quickly and is safe to operate, so that the slurry can be quickly heated from the initial temperature to the first temperature range where the target temperature is located, and the water bath temperature control device can adjust the slurry temperature in a small range, so that the slurry can be better and more stably maintained in the second temperature range, that is, the slurry is quickly heated by the inductive temperature control device so that the slurry quickly approaches the target temperature, and then the water bath temperature control device is used to keep the slurry in the target temperature range, which can stabilize the working temperature of the slurry within a small range, so that the fluidity of the slurry remains consistent during operation, thereby ensuring coating uniformity, and the water bath temperature control device has uniform heat exchange, avoiding excessive temperature and uncontrollable temperature caused by direct heating.

[0033] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of a slurry rheology control device provided in an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the structure of an inductive temperature control device provided in an embodiment of the present invention;

[0037] Figure 3A cross-sectional view of a water bath temperature control device provided in an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of a slurry flow channel of a water bath temperature control device provided in an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of an inductive temperature control device and a temperature control system provided in an embodiment of the present invention.

[0040] Icons: 1-slurry conveying pipeline; 2-inductive temperature control device; 3-water bath temperature control device; 4-first coil group; 5-second coil group; 6-first coil; 7-second coil; 8-slurry flow channel; 9-circulating water flow channel; 10-first plate body; 11-second plate body; 12-feed port; 13-discharge port; 14-first insulation cover plate; 15-second insulation cover plate; 16-transfer vehicle; 17-box body. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected 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 invention can be understood according to specific circumstances.

[0044] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] The present invention is further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0046] Specific structure such as Figures 1 to 5 shown.

[0047] The present embodiment provides a slurry rheology control device, comprising: a slurry conveying pipeline 1, an inductive temperature control device 2 and a water bath temperature control device 3; along the conveying direction of the slurry in the slurry conveying pipeline 1, the inductive temperature control device 2 and the water bath temperature control device 3 are sequentially arranged on the slurry conveying pipeline 1; the inductive temperature control device 2 is used to heat the slurry in the slurry conveying pipeline 1 from an initial temperature to a first temperature range where a target temperature is located, and the water bath temperature control device 3 is used to exchange heat of the slurry in the slurry conveying pipeline 1 to a second temperature range where the target temperature is located, and the first temperature range partially overlaps with the second temperature range.

[0048] In this embodiment, the slurry in the slurry conveying pipeline 1 is heated from the initial temperature to the first temperature interval where the target temperature is located by the inductive temperature control device 2, and the slurry in the slurry conveying pipeline 1 is heat-exchanged to the second temperature interval where the target temperature is located by the water bath temperature control device 3, and the first temperature interval and the second temperature interval partially overlap, so that the slurry in the slurry conveying pipeline 1 is closer to the target temperature. On the one hand, the slurry temperature is increased, and the slurry fluidity is significantly improved. Therefore, when the coating thickness is constant, the fluidity of the slurry can be maintained while increasing the solid content of the slurry, and the slurry can be allowed to have a higher solid content when the slurry fluidity is constant; on the other hand, the cooling system in the traditional transfer slurry transportation can be eliminated. Since the temperature of the slurry before entering the oven is higher than that of the traditional room temperature slurry entering the oven, the length of the oven can be shortened, the coating drying time can be reduced, and the thermal power of the oven can be reduced, which greatly saves the power consumption of the coating workshop, and The higher solid content of the slurry shortens the drying time, that is, the high-temperature and high-solid content slurry has a higher coating speed, which greatly improves the coating capacity. Under the combined effect of the two, the energy consumption of the coating process is greatly reduced; on the other hand, the inductive temperature control device 2 heats the slurry quickly and is safe to operate, so that the slurry can be quickly heated from the initial temperature to the first temperature range where the target temperature is located, and the water bath temperature control device 3 can adjust the slurry temperature in a small range, so that the slurry can be better and more stably maintained in the second temperature range, that is, the slurry is quickly heated by the inductive temperature control device 2 so that the slurry quickly approaches the target temperature, and then the water bath temperature control device 3 is used to keep the slurry in the target temperature range, which can stabilize the temperature of the slurry during operation within a small range, so that the fluidity of the slurry during operation remains consistent, thereby ensuring coating uniformity, and the water bath temperature control device 3 has uniform heat exchange, avoiding excessive temperature and uncontrollable temperature caused by direct heating.

[0049] Specifically, the inductive temperature control device 2 includes an electromagnetic induction coil, a power controller and a temperature controller; the electromagnetic induction coil is wrapped around the outside of the slurry conveying pipeline 1 and is electrically connected to the power controller and the temperature controller; the power controller is used to adjust the current of the electromagnetic induction coil, and the temperature controller controls the power controller through the temperature control system.

[0050] In this embodiment, the electromagnetic induction coil is wrapped around the outside of the slurry conveying pipeline 1. The slurry conveying pipeline 1 can be formed in one piece or multiple sections can be connected in sequence. The power controller and the temperature controller are arranged on the left side of the slurry rheology control device or in other places of the slurry rheology control device, as long as the requirements are met. The power controller and the temperature controller are both electrically connected to the electromagnetic induction coil. The temperature controller controls the power controller through the temperature control system so that the power controller adjusts the output current of the electromagnetic induction coil, which has the advantages of fast heating speed, safe operation, and automatic power adjustment.

[0051] In this embodiment, the inductive temperature control device 2 may also only include an electromagnetic induction coil and a power controller, and the current of the electromagnetic induction coil is directly adjusted by the power controller, and the current is adjusted according to the detected temperature of the slurry.

[0052] In the optional technical solution of this embodiment, the electromagnetic induction coil includes a first coil group 4 and a second coil group 5, and along the conveying direction of the slurry in the slurry conveying pipeline 1, the first coil group 4 is located upstream of the second coil group 5; the first coil group 4 includes at least one first coil 6, the second coil group 5 includes at least one second coil 7, and the first coil 6 and the second coil 7 are both wrapped on the outside of the slurry conveying pipeline 1, and the current of the first coil 6 is greater than the current of the second coil 7. The first coil group 4 is used to heat the slurry in the slurry conveying pipeline 1 from the initial temperature to the preset intermediate temperature, and the second coil group 5 is used to heat the slurry in the slurry conveying pipeline 1 to the first temperature interval where the target temperature is located.

[0053] In this embodiment, the inductive temperature control device 2 heats the slurry in two stages. In the first stage, the slurry temperature is roughly controlled by the first coil group 4, and in the second stage, the slurry temperature is precisely controlled by the second coil group 5. Since the current of the first coil 6 in the first coil group 4 is greater than the current of the second coil 7 in the second coil group 5, in the first stage, the slurry in the slurry conveying pipeline 1 is rapidly raised from the initial temperature to the preset intermediate temperature in a short time through the first coil group 4; in the second stage, the slurry in the slurry conveying pipeline 1 is raised from the preset intermediate temperature to the first temperature interval where the target temperature is located through the second coil group 5. By heating separately in two stages, it is possible to achieve both rapid temperature increase and precise temperature control.

[0054] In this embodiment, the slurry is temperature-controlled in the third stage by the water bath temperature control device 3. The target temperature is achieved in the third stage. The water temperature of the water bath temperature control device 3 is controlled near the target temperature, that is, the water temperature is controlled in the second temperature range where the target temperature is located. In the third stage, since the temperature of the slurry is in the first temperature range, and the first temperature range partially overlaps with the second temperature range, that is, the temperature of the slurry is close to the water temperature of the water bath temperature control device 3, the slurry reaches the final target temperature through heat exchange.

[0055] In the optional technical solution of this embodiment, the slurry conveying pipeline 1 is bent to form at least two layers; the first coil group 4 and the second coil group 5 are respectively located in two adjacent layers of the slurry conveying pipeline 1. The first coil group 4 and the second coil group 5 are arranged in layers to save space.

[0056] Preferably, the slurry conveying pipeline 1 is bent to form two layers, the first coil group 4 is arranged in the lower layer, and three first coils 6 are arranged, that is, the lower layer is the first stage (rough control) of heating the slurry, the second coil group 5 is arranged in the upper layer, and three second coils 7 are arranged, that is, the upper layer is the second stage (fine control) of heating the slurry, and the feed port 12 of the slurry conveying pipeline 1 is arranged in the lower layer. The current of the electromagnetic induction coil is controlled by the power controller, thereby controlling the heating temperature.

[0057] In the optional technical solution of this embodiment, the inductive temperature control device 2 also includes a thermal insulation layer, which is arranged between the electromagnetic induction coil and the slurry conveying pipeline 1. The thermal insulation layer is made of thermal insulation material, which effectively insulates the heated slurry to prevent the slurry temperature from dropping.

[0058] In the optional technical solution of this embodiment, the water bath temperature control device 3 includes a heat spreader; a circulating water flow channel 9 and a slurry flow channel 8 are arranged in the heat spreader, the circulating water flow channel 9 is used to connect with the external circulating water system, the slurry flow channel 8 is connected with the slurry conveying pipeline 1, and the hot water in the circulating water flow channel 9 can exchange heat with the slurry in the slurry flow channel 8.

[0059] In this embodiment, circulating water is injected into the circulating water channel 9 of the heat plate through an external circulating water system, so that the slurry and the circulating water exchange heat evenly and fully, and the structure is simple and occupies little space. However, it is not limited to this, and the water bath temperature control device 3 can also be a water bathtub or a water bath tank, as long as it can meet the needs.

[0060] In the optional technical solution of this embodiment, the heat spreader includes a first plate body 10 and a second plate body 11 that are arranged opposite to each other, and the first plate body 10 and the second plate body 11 are both provided with a circulating water flow channel 9; the first plate body 10 is provided with a slurry flow channel 8, and / or the second plate body 11 is provided with a slurry flow channel 8. The temperature control effect is better through the cooperation of the first plate body 10 and the second plate body 11 that are arranged opposite to each other.

[0061] In the optional technical solution of this embodiment, the slurry flow channel 8 includes a feed port 12, a discharge port 13 and multiple flow paths; the flow paths are arc-shaped, and one end of all the flow paths is connected to the feed port 12, and the other end of all the flow paths is connected to the discharge port 13.

[0062] In this embodiment, since the flow path is arc-shaped, dead corners are avoided when the slurry passes through the flow path, causing the slurry to accumulate in the dead corners. At the same time, multiple flow paths improve the heat exchange effect and make the heat exchange more uniform.

[0063] Preferably, in this embodiment, the first plate body 10 and the second plate body 11 are both rectangular plates, the feed port 12 and the discharge port 13 are located at both ends of the rectangular plates in the length direction, and the slurry flow channel 8 is elliptical; further, the cross-section of the slurry flow channel 8 is circular, elliptical, square or triangular, so that the circulating water is in full contact with the slurry flow channel 8, thereby improving the heat exchange efficiency.

[0064] In this embodiment, the water bath temperature control device 3 adopts a modular design and can be used in parallel in multiple units to extend the flow time of the slurry in the slurry flow channel 8 to make the heat exchange more sufficient.

[0065] In the optional technical solution of this embodiment, the heat spreader has a first side and a second side relative to each other; the water bath temperature control device 3 also includes a first insulation cover plate 14, which is covered on the heat spreader and located on the first side, and a first insulation interlayer is formed between the first insulation cover plate 14 and the heat spreader; and / or; the water bath temperature control device 3 also includes a second insulation cover plate 15, which is covered on the heat spreader and located on the second side, and a second insulation interlayer is formed between the second insulation cover plate 15 and the heat spreader.

[0066] Specifically, a first thermal insulation cover plate 14 is provided on the side of the first plate body 10 facing away from the second plate body 11, and a first thermal insulation interlayer is formed between the first plate body 10 and the first thermal insulation cover plate 14 to prevent the first plate body 10 from dissipating heat on the side facing away from the second plate body 11, thereby playing a role of heat preservation; a second thermal insulation cover plate 15 is provided on the side of the second plate body 11 facing away from the first plate body 10, and a second thermal insulation interlayer is formed between the second plate body 11 and the second thermal insulation cover plate 15 to prevent the second plate body 11 from dissipating heat on the side facing away from the first plate body 10, thereby playing a role of heat preservation.

[0067] Preferably, considering the problems of disassembly and installation, the second plate body 11 and the second thermal insulation cover plate 15 are configured as separate bodies, and the first plate body 10 and the first thermal insulation cover plate 14 are configured as an integral body, but not limited to this, the second plate body 11 and the second thermal insulation cover plate 15 can also be configured as separate bodies, and the first plate body 10 and the first thermal insulation cover plate 14 can be configured as separate bodies; the second plate body 11 and the second thermal insulation cover plate 15 can also be configured as an integral body, and the first plate body 10 and the first thermal insulation cover plate 14 can be configured as an integral body.

[0068] In this embodiment, the inductive temperature control device 2 also includes a temperature sensor electrically connected to the temperature controller, and a plurality of temperature sensors are arranged on the slurry conveying pipeline 1 to monitor the slurry temperature at different positions in the slurry conveying pipeline 1. Among them, the temperature sensors are at least located at the slurry conveying pipeline 1 entering the first coil group 4, the slurry conveying pipeline 1 exiting the first coil group 4, the slurry conveying pipeline 1 exiting the second coil group 5, the slurry conveying pipeline 1 entering the water bath temperature control device 3, and the slurry conveying pipeline 1 exiting the water bath temperature control device 3. Accurate monitoring of each link is achieved to ensure the accuracy of slurry temperature control.

[0069] The optional technical solution of this embodiment also includes a transfer vehicle 16 and a box 17, the box 17 is arranged on the transfer vehicle 16; the slurry delivery pipeline 1 is passed through the box 17, the inductive temperature control device 2 is arranged in the box 17, and the water bath temperature control device 3 is arranged on the top of the box 17. The overall structure is simple, the position is convenient to move, and the flexibility of use is improved. When in use, the slurry delivery pipeline 1 only needs to be connected with the target pipeline.

[0070] The specific usage of this embodiment is illustrated by example:

[0071] Assume the final target temperature is 55℃±1℃;

[0072] The rough control temperature is set to 45 degrees Celsius, that is, the preset intermediate temperature. According to the slurry parameters, the power required for the first coil group 4 to perform the first stage heating is calculated, and the current is adjusted to quickly heat the slurry.

[0073] Set the precision control temperature to 54±1.5℃, i.e. the first temperature range. Here, the slurry temperature after the first stage of heating is 45℃±2℃ as an example. The temperature controller controls the power controller through the temperature control system to adjust the output current of the second coil group 5. When the output slurry temperature after the second stage of heating is lower than the target temperature, the entire temperature control system will continuously adjust the output current until the output slurry temperature after the second stage of heating is infinitely close to the target temperature.

[0074] The water temperature of the water bath temperature control device 3 is controlled at 55°C ± 1°C, and finally the slurry is heat exchanged with the water bath temperature control device 3 so that the output slurry temperature approaches the target temperature.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slurry rheology control device, characterized in that: include: Slurry conveying pipeline (1), inductive temperature control device (2) and water bath temperature control device (3); Along the conveying direction of the slurry in the slurry conveying pipeline (1), the inductive temperature control device (2) and the water bath temperature control device (3) are sequentially arranged on the slurry conveying pipeline (1); The inductive temperature control device (2) is used to heat the slurry in the slurry conveying pipeline (1) from an initial temperature to a first temperature range where a target temperature is located, and the water bath temperature control device (3) is used to exchange heat of the slurry in the slurry conveying pipeline (1) to a second temperature range where the target temperature is located, and the first temperature range and the second temperature range partially overlap.

2. The slurry rheology control device according to claim 1, characterized in that: The inductive temperature control device (2) comprises an electromagnetic induction coil, a power controller and a temperature controller; The electromagnetic induction coil is coated on the outside of the slurry conveying pipeline (1) and is electrically connected to the power controller and the temperature controller; The power controller is used to adjust the current of the electromagnetic induction coil, and the temperature controller controls the power controller through a temperature control system.

3. The slurry rheology control device according to claim 2, characterized in that: The electromagnetic induction coil comprises a first coil group (4) and a second coil group (5), and along the conveying direction of the slurry in the slurry conveying pipeline (1), the first coil group (4) is located upstream of the second coil group (5); The first coil group (4) includes at least one first coil (6), the second coil group (5) includes at least one second coil (7), and the first coil (6) and the second coil (7) are both wrapped around the outside of the slurry conveying pipeline (1), and the current of the first coil (6) is greater than the current of the second coil (7); The first coil group (4) is used to heat the slurry in the slurry conveying pipeline (1) from an initial temperature to a preset intermediate temperature, and the second coil group (5) is used to heat the slurry in the slurry conveying pipeline (1) to a first temperature range where the target temperature is located.

4. The slurry rheology control device according to claim 3, characterized in that: The slurry conveying pipeline (1) is formed into at least two layers by bending; The first coil group (4) and the second coil group (5) are respectively located at two adjacent layers of the slurry conveying pipeline (1).

5. The slurry rheology control device according to claim 2, characterized in that: The inductive temperature control device (2) further comprises a thermal insulation layer, wherein the thermal insulation layer is arranged between the electromagnetic induction coil and the slurry conveying pipeline (1).

6. The slurry rheology control device according to claim 1, characterized in that: The water bath temperature control device (3) comprises a soaking plate; A circulating water flow channel (9) and a slurry flow channel (8) are provided in the heat spreader; the circulating water flow channel (9) is used to communicate with an external circulating water system; the slurry flow channel (8) is connected to the slurry conveying pipeline (1); and the hot water in the circulating water flow channel (9) can perform heat exchange with the slurry in the slurry flow channel (8).

7. The slurry rheology control device according to claim 6, characterized in that: The heat spreader comprises a first plate body (10) and a second plate body (11) which are arranged opposite to each other, and a circulating water flow channel (9) is arranged in each of the first plate body (10) and the second plate body (11); The slurry flow channel (8) is provided in the first plate body (10), and / or the slurry flow channel (8) is provided in the second plate body (11).

8. The slurry rheology control device according to claim 6, characterized in that: The slurry flow channel (8) comprises a feed port (12), a discharge port (13) and a plurality of flow paths; The flow paths are arc-shaped, and one end of all the flow paths is connected to the feed port (12), and the other end of all the flow paths is connected to the discharge port (13).

9. The slurry rheology control device according to claim 6, characterized in that: The vapor chamber has a first side and a second side opposite to each other; The water bath temperature control device (3) further comprises a first heat insulating cover plate (14), wherein the first heat insulating cover plate (14) is covered on the heat soaking plate and is located on the first side, and a first heat insulating interlayer is formed between the first heat insulating cover plate (14) and the heat soaking plate; and / or; The water bath temperature control device (3) further comprises a second heat insulating cover plate (15), wherein the second heat insulating cover plate (15) is covered on the heat spreader and is located on the second side, and a second heat insulating interlayer is formed between the second heat insulating cover plate (15) and the heat spreader.

10. The slurry rheology control device according to any one of claims 1 to 9, characterized in that: It also includes a transfer vehicle (16) and a box (17), wherein the box (17) is arranged on the transfer vehicle (16); The slurry conveying pipeline (1) is passed through the box (17), the inductive temperature control device (2) is arranged in the box (17), and the water bath temperature control device (3) is arranged on the top of the box (17).

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