Heating device

Abstract

The utility model relates to the technical field of lithium battery coating and feeding systems, in particular to a heating device, which comprises a heating block body, at least two flow channel cavities, at least one flow channel and a heating device, the feeding ends of the plurality of runner cavities are communicated in sequence and are communicated with a feeding piece; the discharge ends of the plurality of runner cavities are communicated in sequence and are communicated with a discharge piece; and the heating assemblies are arranged in the heating block body, located between every two adjacent runner cavities and suitable for heating the runner cavities. The technical problems that according to existing heating equipment, a heating element is generally adopted to be in direct contact with slurry for heating, so that local high temperature can be generated at the part in direct contact with the slurry, the slurry is sintered or bubbles are generated, and the heat conversion efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery coating feeding systems, and particularly relates to a heating device. Background Art

[0002] Coating is one of the key processes in the production of lithium battery electrodes. The main purpose of this process is to evenly coat a slurry with good stability, viscosity, and fluidity on the positive and negative electrode current collectors. The higher the content of the active substance in the slurry, the thicker the coating on the current collector. When the coating thickness is fixed, increasing the solid content of the slurry can shorten the time required to enter the oven, shorten the oven length, and reduce energy consumption. There are mainly two existing methods for heating the slurry. One is electric heating, which directly heats the slurry using an electric heating element. The other is to use a mold temperature controller to introduce a heat medium into a heat sink and force the heat medium to circulate to achieve heating. However, the mold temperature controller heating has disadvantages such as low thermal efficiency, long response time, and large volume.

[0003] Therefore, existing heating equipment usually directly contacts the slurry with a heating element for heating, resulting in local high temperatures in the part directly contacting the slurry, leading to sintering or bubbling of the slurry and low heat conversion efficiency. Summary of the Utility Model

[0004] The utility model provides a heating device, which solves the technical problems that existing heating equipment usually directly contacts the slurry with a heating element for heating, resulting in local high temperatures in the part directly contacting the slurry, leading to sintering or bubbling of the slurry and low heat conversion efficiency.

[0005] In view of this, the utility model provides a heating device, including:

[0006] A heating block body, in which at least two flow channels are arranged at intervals from top to bottom; the feeding ends of the plurality of flow channels are sequentially connected and communicated with a feeding member; the discharging ends of the plurality of flow channels are sequentially connected and communicated with a discharging member;

[0007] A heating assembly, arranged in the heating block body and located between every two adjacent flow channels, suitable for heating the flow channels.

[0008] Optionally, the heating block body includes:

[0009] A first cover plate;

[0010] A second cover plate, arranged below the first cover plate;

[0011] At least one heating plate, stacked between the first cover plate and the second cover plate; the heating component is arranged in the heating plate; flow channel grooves are arranged on both sides of the heating plate, the feeding ends of the two flow channel grooves are connected in communication, and the discharging ends of the two flow channel grooves are connected in communication; the first cover plate and the uppermost flow channel groove enclose to form a flow channel cavity, and the second cover plate and the lowermost flow channel groove enclose to form a flow channel cavity; wherein, when the number of the heating plates is greater than or equal to two, an adjacent two heating plates enclose to form a flow channel cavity through the two flow channel grooves.

[0012] The feeding member is arranged on the first cover plate or the second cover plate, and the discharging member is arranged on the first cover plate or the second cover plate.

[0013] Optionally, the heating plate comprises two heat equalizing plates; a flow channel groove is arranged on one side of the heat equalizing plate, and a mounting groove is arranged on the other side; the sides of the two heat equalizing plates where the mounting grooves are arranged are correspondingly connected, and the two mounting grooves enclose to form a mounting cavity for mounting the heating component; through holes are vertically penetrated through both ends of the flow channel groove, and the flow channel grooves on the two heat equalizing plates are communicated through the through holes.

[0014] Optionally, in one heating plate, the two corresponding through holes on the two heat equalizing plates are hermetically connected through a sealing component.

[0015] Optionally, the sealing component comprises:

[0016] A sealing tube, one end of which is adaptively inserted into the two through holes, and a limiting flange is arranged around the other end of the sealing tube along its axial direction;

[0017] A pressing plate, detachably connected to the end of the sealing tube away from the limiting flange, and the pressing plate is communicated with the sealing tube;

[0018] Wherein, the pressing plate abuts against the flow channel groove of one of the two heat equalizing plates, and the limiting flange abuts against the flow channel groove of the other of the two heat equalizing plates.

[0019] Optionally, a first sealing gasket is arranged between the pressing plate and the flow channel groove;

[0020] And / or, a second sealing gasket is arranged between the limiting flange and the flow channel groove.

[0021] Optionally, the pressing plate has the same shape as the outer periphery of the limiting flange, and a limiting groove adapted to the pressing plate or the limiting flange is arranged on the periphery of the through hole in the flow channel groove.

[0022] Optionally, a third sealing gasket is arranged between the first cover plate and the heating plate;

[0023] And / or, a fourth gasket is provided between the second cover plate and the heating plate.

[0024] Optionally, the heating assembly includes a plurality of heating rods arranged side by side; the plurality of heating rods are inserted into the heating block body and located between every two adjacent flow channel cavities;

[0025] And / or, the flow channel cavity is arranged in a U shape.

[0026] Optionally, a first temperature detection component is provided on the discharging component, and the first temperature detection component is communicatively connected to the heating assembly and is adapted to detect the discharging temperature.

[0027] The technical solution of the present utility model has the following advantages:

[0028] In the present utility model, when it is necessary to heat the slurry, the feeding component is communicated with an external feeding device, and the discharging component is communicated with an external discharging device. The slurry flows into the feeding end of the flow channel cavity from the feeding component. Since the feeding ends of the plurality of flow channel cavities are communicatively connected, the slurry flows into each flow channel cavity respectively and is heated by the heating assembly. After heating, it converges to the discharging component from the discharging ends of each flow channel cavity and flows out of the discharging component to an external feeding device or the next process; the heating device provided by the present utility model realizes uniform heating by arranging a plurality of flow channel cavities and arranging a heating assembly between every two adjacent flow channel cavities, and separating the plurality of flow channel cavities in the heating block body, so that the heating assembly is separated from the slurry, avoiding the situation that the slurry is locally overheated and unevenly heated due to the direct contact heating of the heating assembly with the slurry, and avoiding the sintering or bubbling of the slurry; in addition, the two adjacent flow channel cavities wrap the heating assembly in the middle, so that the slurry can absorb more heat and has a high heat conversion efficiency. Description of the Drawings

[0029] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic structural diagram of the heating device provided by the present utility model from the first perspective;

[0031] Figure 2 It is a schematic structural diagram of the heating device provided by the present utility model from the second perspective;

[0032] Figure 3 ForFigure 2 Cross-sectional view at A-A in

[0033] Figure 4 Schematic structural diagram of one side of the heat sink provided by the present utility model;

[0034] Figure 5 Schematic structural diagram of the other side of the heat sink provided by the present utility model;

[0035] Figure 6 Schematic structural diagram of the heating device provided by the present utility model from the third perspective;

[0036] Figure 7 is Figure 6 Partial cross-sectional view at B-B in

[0037] Figure 8 Schematic diagram of the state of slurry flow in the heating device provided by the present utility model;

[0038] Figure 9 Schematic diagram of the temperature control process of the heating device provided by the present utility model.

[0039] Explanation of reference numerals:

[0040] 1, flow channel cavity; 2, feed component; 201, feed pipe; 202, first connection part; 203, fifth sealing gasket; 204, second temperature detection component; 3, discharge component; 301, discharge pipe; 302, second connection part; 303, sixth sealing gasket; 304, first temperature detection component; 4, heating assembly; 5, first cover plate; 6, second cover plate; 7, flow channel groove; 8, heat sink; 9, installation groove; 10, through hole; 11, sealing assembly; 1101, sealing pipe; 1102, limiting flange; 1103, pressing plate; 1104, first sealing gasket; 1105, second sealing gasket; 12, limiting groove; 13, third sealing gasket; 14, fourth sealing gasket; 15, installation part; 16, sealing plate. Detailed implementation manners

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0043] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0045] Embodiment 1

[0046] Please refer to Figures 1 to 9 , this embodiment provides a heating device, including: a heating block body, in which at least two flow channel cavities 1 are provided at intervals from top to bottom; the feeding ends of the multiple flow channel cavities 1 are sequentially communicated and connected to a feeding member 2; the discharging ends of the multiple flow channel cavities 1 are sequentially communicated and connected to a discharging member 3; a heating assembly 4, which is arranged in the heating block body and is located between every two adjacent flow channel cavities 1 and is adapted to heat the flow channel cavities 1.

[0047] It should be noted that both the feeding member 2 and the discharging member 3 are arranged on the heating block body; one end of the flow channel cavity 1 is the feeding end and the other end is the discharging end.

[0048] In this embodiment, when the slurry needs to be heated, the feeding member 2 is connected to an external feeding device, and the discharging member 3 is connected to an external discharging device. The slurry flows into the feeding end of the flow channel cavity 1 from the feeding member 2. Since the feeding ends of the multiple flow channel cavities 1 are connected, the slurry flows into each flow channel cavity 1 respectively and is heated by the heating assembly 4. After heating, it converges at the discharging end of each flow channel cavity 1 to the discharging member 3 and flows out of the discharging member 3 to an external feeding device or the next process. The heating device provided in this embodiment realizes uniform heating by setting multiple flow channel cavities 1 and arranging heating assemblies 4 between every two adjacent flow channel cavities 1 to separate the heating assemblies 4 from the slurry in the heating block body, thus avoiding the situation that the slurry has too high local temperature and uneven heating due to the direct contact heating between the heating assembly 4 and the slurry, and preventing the slurry from sintering or generating bubbles. In addition, the two adjacent flow channel cavities 1 wrap the heating assembly 4 in the middle, enabling the slurry to absorb more heat and having a high heat conversion efficiency.

[0049] Embodiment 2

[0050] As a further improvement to Embodiment 1, as Figures 1 to 7 shown, the heating block body includes: a first cover plate 5; a second cover plate 6 disposed below the first cover plate 5; at least one heating disk stacked between the first cover plate 5 and the second cover plate 6; the heating assembly 4 is disposed in the heating disk; flow channel grooves 7 are provided on both sides of the heating disk, the feeding ends of the two flow channel grooves 7 are connected, and the discharging ends of the two flow channel grooves 7 are connected; the first cover plate 5 and the uppermost flow channel groove 7 enclose to form a flow channel cavity 1, and the second cover plate 6 and the lowermost flow channel groove 7 enclose to form a flow channel cavity 1; wherein, when the number of heating disks is greater than or equal to two, two adjacent heating disks enclose to form a flow channel cavity 1 through the two flow channel grooves 7; the feeding member 2 is disposed on the first cover plate 5 or the second cover plate 6, and the discharging member 3 is disposed on the first cover plate 5 or the second cover plate 6.

[0051] It should be noted that a first communication port for connecting the feeding end of the flow channel cavity 1 and the feeding member 2 is provided on the first cover plate 5 or the second cover plate 6, and a second communication port for connecting the discharging end of the flow channel cavity 1 and the discharging member 3 is provided on the first cover plate 5 or the second cover plate 6; one end of the flow channel groove 7 is the discharging end, and the other end is the feeding end.

[0052] In this embodiment, the heating block body is provided in a split form, which is convenient for installation and disassembly for cleaning. Two flow channel grooves 7 are symmetrically arranged at both ends of the heating plate, and the feeding ends and discharging ends of the two flow channel grooves 7 are respectively communicated. The flow channel groove 7 at the uppermost part can form a flow channel groove 7 in cooperation with the first cover plate 5, and the flow channel groove 7 at the lowermost part can form a flow channel groove 7 in cooperation with the second cover plate 6; when multiple heating plates are provided, a flow channel cavity 1 can also be formed by stacking the flow channel grooves 7 corresponding to each other between adjacent two heating plates. When multiple heating plates are stacked, the flow channel grooves 7 are correspondingly arranged, so that the feeding ends and discharging ends of the flow channel grooves 7 on multiple heating plates are respectively correspondingly communicated. The number of heating plates can be set between the first cover plate 5 and the second cover plate 6 according to actual conditions, and the feeding amount of the slurry can be increased by increasing the number of heating plates, so as to improve the heating efficiency of the slurry. Preferably, in this embodiment, the number of heating plates is set to one, that is, there are two flow channel cavities 1 for double-layer heating.

[0053] Specifically, as Figure 7 shown, the feeding member 2 includes a feeding pipe 201. A first connecting portion 202 is provided on the peripheral side of one end of the feeding pipe 201 connected to the first cover plate 5 or the second cover plate 6. The feeding pipe 201 is screwed to the first cover plate 5 or the second cover plate 6 through the first connecting portion 202 to improve the connection strength; a fifth sealing gasket 203 is provided between the first connecting portion 202 and the first cover plate 5 or the second cover plate 6 to improve the sealing performance; preferably, in this embodiment, the feeding pipe 201 is arranged on the second cover plate 6 and is communicated with the feeding end of the flow channel cavity 1 through a first communication port.

[0054] Specifically, as Figure 1 、 Figure 2 and Figure 6 shown, the discharging member 3 includes a discharging pipe 301. A second connecting portion 302 is provided on the peripheral side of one end of the discharging pipe 301 connected to the first cover plate 5 or the second cover plate 6. The discharging pipe 301 is screwed to the first cover plate 5 or the second cover plate 6 through the second connecting portion 302 to improve the connection strength; a sixth sealing gasket 303 is provided between the second connecting portion 302 and the first cover plate 5 or the second cover plate 6 to improve the sealing performance; preferably, in this embodiment, the discharging pipe 301 is arranged on the first cover plate 5 and is communicated with the discharging end of the flow channel cavity 1 through a second communication port.

[0055] As a changeable implementation manner, it can also be that the heating block body is integrally provided, which is convenient for improving the stability of the overall structure.

[0056] Specifically, as Figure 1 and Figure 2 shown, the heating plates are all screwed to the first cover plate 5 and the second cover plate 6, which is convenient for installation and disassembly.

[0057] On the basis of the above embodiments, in a preferred embodiment, as Figure 4 and Figure 5 shown, the heating plate includes two heat dissipation plates 8; a flow channel groove 7 is provided on one side of the heat dissipation plate 8, and a mounting groove 9 is provided on the other side; the sides of the two heat dissipation plates 8 with the mounting grooves 9 are correspondingly connected, and the two mounting grooves 9 enclose to form a mounting cavity for mounting the heating component 4; through holes 10 are vertically penetrated through both ends of the flow channel groove 7, and the flow channel grooves 7 on the two heat dissipation plates 8 are communicated through the through holes 10.

[0058] In this embodiment, the heating plate is formed by stacking and connecting two heat dissipation plates 8 with the same structure. The two heat dissipation plates 8 have the same structure, which is convenient for processing and connection, reduces costs, and a mounting cavity for mounting the heating component 4 is provided between the two heat dissipation plates 8, which is convenient for disassembly and installation, so as to facilitate cleaning and maintenance.

[0059] Specifically, as Figure 1 and Figure 2 shown, a plurality of mounting parts 15 are evenly provided on the peripheral side of the heat dissipation plate 8, and a plurality of mounting holes are penetrated through the mounting parts 15, which is convenient for connecting two or more heat dissipation plates 8 by bolts passing through the mounting holes, and at the same time plays a positioning role, improving the accuracy of alignment during installation.

[0060] As a variable embodiment, it can also be that the heating plate is integrally provided, which is convenient for improving the overall structural strength and stability.

[0061] On the basis of the above embodiments, in a preferred embodiment, as Figure 7 shown, in one heating plate, the two corresponding through holes 10 on the two heat dissipation plates 8 are hermetically connected through a sealing component 11.

[0062] In this embodiment, in one heating plate, the two vertically corresponding through holes 10 are hermetically connected through the sealing component 11, improving the sealing performance and preventing the slurry from leaking.

[0063] On the basis of the above embodiments, in a preferred embodiment, as Figure 7 shown, the sealing component 11 includes: a sealing tube 1101, one end of which is adaptively inserted into the two through holes 10, and a limiting flange 1102 is provided around the other end of its axis; a pressing plate 1103, which is detachably connected to the end of the sealing tube 1101 away from the limiting flange 1102, and the pressing plate 1103 is communicated with the sealing tube 1101; wherein, the pressing plate 1103 abuts against the flow channel groove 7 of one of the two heat dissipation plates 8, and the limiting flange 1102 abuts against the flow channel groove 7 of the other of the two heat dissipation plates 8.

[0064] It should be noted that after the pressing plate 1103 is connected to the sealing tube 1101 , the cross-section of the pressing plate 1103 , the sealing tube 1101 and the limiting flange 1102 as a whole in the vertical direction is in an I-shape.

[0065] In the present embodiment, in one heating plate, a sealing tube 1101 is passed through two corresponding upper and lower through holes 10 in two equalizing plates 8; one end of the sealing tube 1101 is limited by abutting against the flow channel 7 of one of the two equalizing plates 8 through a limiting flange 1102, and the other end is limited by a connecting pressure plate 1103 and abutting against the flow channel 7 of the other of the two equalizing plates 8 through the pressure plate 1103, so that the sealing tube 1101 is firmly sealed and clamped in the two through holes 10, while improving the stability of the connection between the two equalizing plates; when the slurry flows, the slurry flows through the two through holes 10 through the sealing tube 1101, avoiding leakage of the slurry through the gap between the two equalizing plates, thereby improving the sealing.

[0066] Specifically, Figure 7 As shown, the pressing plate 1103 is connected to the sealing tube 1101 by screws, which is convenient for installation and disassembly.

[0067] On the basis of the above-mentioned embodiment, in a preferred embodiment, a first sealing gasket 1104 is provided between the pressing plate 1103 and the flow channel groove 7 .

[0068] It should be noted that the first sealing gasket 1104 is sleeved on the sealing tube 1101 .

[0069] In this embodiment, a first sealing gasket 1104 is provided between the pressing plate 1103 and the flow channel groove 7 to further improve the sealing performance.

[0070] Based on the above implementation, in a preferred implementation, Figure 7 As shown, a second sealing gasket 1105 is provided between the limiting flange 1102 and the flow channel groove 7 .

[0071] It should be noted that the second sealing gasket 1105 is sleeved on the two sealing tubes 1101 .

[0072] In this embodiment, a second sealing gasket 1105 is provided between the limiting flange 1102 and the flow channel groove 7 to further improve the sealing performance.

[0073] Based on the above implementation, in a preferred implementation, Figure 4 and Figure 7 As shown, the shape of the outer periphery of the pressing plate 1103 is consistent with that of the limiting flange 1102 , and a limiting groove 12 adapted to the pressing plate 1103 or the limiting flange 1102 is provided on the peripheral side of the through hole 10 in the flow channel groove 7 .

[0074] In this embodiment, by providing a limiting groove 12 in the flow channel groove 7, when connecting the sealing pipe 1101, both the pressing plate 1103 and the limiting flange 1102 are adaptively clamped in the limiting groove 12, improving the installation accuracy and further enhancing the sealing performance.

[0075] Based on the above-mentioned implementation manner, in a preferred implementation manner, as Figure 3 shown, a third sealing gasket 13 is provided between the first cover plate 5 and the heating plate.

[0076] It should be noted that the third sealing gasket 13 is arranged around the circumference of the flow channel groove 7.

[0077] In this embodiment, by providing a third sealing gasket 13 between the first cover plate 5 and the heating plate, the sealing performance is further improved to prevent the leakage of the slurry.

[0078] Based on the above-mentioned implementation manner, in a preferred implementation manner, as Figure 3 shown, a fourth sealing gasket 14 is provided between the second cover plate 6 and the heating plate.

[0079] It should be noted that the fourth sealing gasket 14 is arranged around the circumference of the flow channel groove 7.

[0080] In this embodiment, by providing a fourth sealing gasket 14 between the second cover plate 6 and the heating plate, the sealing performance is further improved to prevent the leakage of the slurry.

[0081] Based on the above-mentioned implementation manner, in a preferred implementation manner, as Figure 3 shown, the heating assembly 4 includes a plurality of heating rods arranged side by side; the plurality of heating rods are inserted into the heating block body and are located between every two adjacent flow channels 1.

[0082] It should be noted that a plurality of heating rods are arranged side by side between every two adjacent flow channels 1.

[0083] In this embodiment, by arranging a plurality of heating rods side by side, the heating uniformity is improved, and at the same time, the heating rods are inserted into the heating block body, which is convenient for installation and disassembly.

[0084] Specifically, as Figure 3 and Figure 5 shown, an installation cavity is provided on the heating block body corresponding to each heating rod, the heating rod is inserted into the installation cavity, and a sealing plate 16 is detachably connected to the heating block body corresponding to each installation cavity. After the heating rod is inserted into the installation cavity, it is sealed by the sealing plate 16 to play a protective role.

[0085] Specifically, the installation groove 9 includes a plurality of semi-circular grooves arranged side by side, and the two semi-circular grooves on the two heat equalizing plates enclose to form an installation cavity.

[0086] Based on the above embodiments, in a preferred embodiment, as Figure 4 and Figure 8 shown, the flow channel cavity 1 is arranged in a U shape.

[0087] In this embodiment, by arranging the flow channel cavity 1 in a U-shaped structure, the flow path of the slurry is increased, thereby ensuring that the heating component 4 fully heats the slurry and improving the heating effect.

[0088] Specifically, as Figure 4 shown, the flow channel groove 7 is arranged in a U shape.

[0089] Based on the above embodiments, in a preferred embodiment, as Figure 1 and Figure 2 shown, a first temperature detection component 304 is provided on the discharging component 3; the first temperature detection component 304 is communicatively connected to the heating component 4 and is adapted to detect the discharging temperature.

[0090] Communicatively connected means that through the transmission and interaction of signals, communication is formed between the connected devices, including wired connections (such as connections through wires, network cables, etc.) and wireless connections (such as WiFi, 4G connections, etc.).

[0091] In this embodiment, the discharging temperature is detected by the first temperature detection component 304, and then the temperature data is fed back to the heating component 4. The output power of the heating component 4 can be controlled according to the discharging temperature. If the temperature is insufficient, the output power of the heating component 4 is increased; if the temperature is too high, the output power of the heating component 4 is decreased, realizing closed-loop control.

[0092] Specifically, the heating device further includes a temperature controller and a thyristor, and the temperature controller and the thyristor are communicatively connected; the first temperature detection component 304 is communicatively connected to the heating component 4 through the temperature controller and the thyristor; the temperature control process is as Figure 9 shown: the first temperature detection component 304 detects the temperature of the slurry at the discharging component 3, the first temperature detection component 304 feeds back the temperature data to the temperature controller, the temperature controller outputs an electrical signal to control the thyristor according to the built-in control code, and the thyristor controls the output power of the heating component 4, thereby affecting the temperature of the slurry at the discharging component 3 and realizing closed-loop control.

[0093] Specifically, the first temperature detection component 304 is a temperature sensor.

[0094] Specifically, a second temperature detection component 204 is provided on the feeding component 2 and is adapted to detect the feeding temperature.

[0095] Specifically, the second temperature detection component 204 is a temperature sensor.

[0096] Specifically, the flow channel cavity 1 is horizontally arranged, and multiple heating rods are horizontally arranged at intervals. This facilitates improving the uniformity of heating by the heating assembly 4.

[0097] The specific working principle of the heating device provided in this embodiment is as follows: As Figure 8 shown, when it is necessary to heat the slurry, it is connected to an external feeding device through the feeding pipe 201, and the discharging pipe 301 is connected to an external discharging device. The slurry flows into the feeding end of the flow channel cavity 1 from the feeding pipe 201. Since the feeding ends of the multiple flow channel cavities 1 are connected, the slurry flows into each flow channel cavity 1 through the sealing pipe 1101 from the feeding end of the lowermost flow channel cavity 1 and is heated by multiple heating rods. After heating is completed, it converges to the discharging pipe 301 from the discharging ends of each flow channel cavity 1 and flows out of the discharging pipe 301 to an external feeding device or the next process. During the discharging process, as Figure 9 shown, the first temperature detection component 304 detects the temperature of the slurry at the discharging component 3. The first temperature detection component 304 feeds back the temperature data to the temperature controller. The temperature controller outputs an electrical signal to control the thyristor according to the built-in control code. The thyristor controls the output power of the heating rod, thereby affecting the temperature of the slurry in the discharging pipe 301 to achieve closed-loop control. The heating device provided in this embodiment separates the heating rod from the slurry by arranging multiple flow channel cavities 1 and arranging a heating assembly 4 between every two adjacent flow channel cavities 1, that is, arranging multiple heating rods between two heat equalizing plates 8 and separating the multiple flow channel cavities 1 in the heating block body. The heating rod directly heats the heat equalizing plate 8, and then the heat equalizing plate 8 transfers the heat to the slurry to achieve the temperature rise of the slurry, thereby achieving uniform heating, avoiding the situation that the heating assembly 4 directly contacts the slurry for heating, resulting in too high local temperature and uneven heating of the slurry, and avoiding the situation of slurry sintering or bubble generation. In addition, the adjacent two flow channel cavities 1 wrap the heating rod in the middle, enabling the slurry to absorb more heat and having a high heat conversion efficiency. This solves the technical problem that existing heating devices usually use heating elements to directly contact the slurry for heating, resulting in local high temperature in the part directly contacting the slurry, leading to slurry sintering or bubble generation and low heat conversion efficiency.

[0098] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A heating device, characterized in that: include: A heating block body, wherein at least two flow channel cavities (1) are arranged in intervals from top to bottom in the heating block body; the feed ends of the plurality of flow channel cavities (1) are arranged in sequence and connected to a feed piece (2); the discharge ends of the plurality of flow channel cavities (1) are arranged in sequence and connected to a discharge piece (3); A heating component (4) is arranged in the heating block body and located between every two adjacent flow channel cavities (1), and is suitable for heating the flow channel cavities (1).

2. The heating device according to claim 1, characterized in that The heating block body comprises: A first cover plate (5); A second cover plate (6) is arranged below the first cover plate (5); At least one heating plate is stacked and arranged between the first cover plate (5) and the second cover plate (6); the heating assembly (4) is arranged in the heating plate; flow channels (7) are arranged on both sides of the heating plate, the feeding ends of the two flow channels (7) are connected, and the discharge ends of the two flow channels (7) are connected; the first cover plate (5) and the uppermost flow channel (7) are enclosed to form a flow channel cavity (1), and the second cover plate (6) and the lowermost flow channel (7) are enclosed to form a flow channel cavity (1); wherein, when the number of the heating plates is greater than or equal to two, two adjacent heating plates are enclosed by the two flow channel grooves (7) to form a flow channel cavity (1); The material feeding member (2) is arranged on the first cover plate (5) or the second cover plate (6), and the material discharging member (3) is arranged on the first cover plate (5) or the second cover plate (6).

3. The heating device according to claim 2, characterized in that: The heating plate comprises two equalizing plates (8); one side of the equalizing plate (8) is provided with the flow channel groove (7), and the other side is provided with a mounting groove (9); the two equalizing plates (8) are connected to each other on one side of the mounting groove (9), and the two mounting grooves (9) are enclosed to form a mounting cavity for mounting the heating component (4); both ends of the flow channel groove (7) are penetrated by through holes (10) in the vertical direction, and the flow channel grooves (7) located on the two equalizing plates (8) are connected through the through holes (10).

4. The heating device according to claim 3, characterized in that: In one of the heating plates, the two corresponding through holes (10) located on the two equalizing plates (8) are sealed and connected via a sealing assembly (11).

5. The heating device according to claim 4, characterized in that: The sealing assembly (11) comprises: A sealing tube (1101), one end of which is adapted to be inserted into the two through holes (10), and the other end of which is provided with a limiting flange (1102) around its axial direction; A pressing plate (1103) is detachably connected to one end of the sealing tube (1101) away from the limiting flange (1102), and the pressing plate (1103) is connected to the sealing tube (1101); The pressure plate (1103) abuts against the flow channel groove (7) of one of the two heat equalizing plates (8), and the limiting flange (1102) abuts against the flow channel groove (7) of the other of the two heat equalizing plates (8).

6. The heating device according to claim 5, characterized in that: A first sealing gasket (1104) is provided between the pressing plate (1103) and the flow channel groove (7); And / or, a second sealing gasket (1105) is provided between the limiting flange (1102) and the flow channel groove (7).

7. The heating device according to claim 5, characterized in that: The pressure plate (1103) has the same shape as the outer periphery of the limiting flange (1102), and a limiting groove (12) adapted to the pressure plate (1103) or the limiting flange (1102) is provided in the flow channel groove (7) on the peripheral side of the through hole (10).

8. The heating device according to claim 2, characterized in that: A third sealing gasket (13) is provided between the first cover plate (5) and the heating plate; And / or, a fourth sealing gasket (14) is provided between the second cover plate (6) and the heating plate.

9. The heating device according to any one of claims 1 to 8, characterized in that: The heating assembly (4) comprises a plurality of heating rods arranged side by side; the plurality of heating rods are inserted into the heating block body and are located between every two adjacent flow channel cavities (1); And / or, the flow channel cavity (1) is arranged in a U shape.

10. The heating device according to claim 1, characterized in that The discharge member (3) is provided with a first temperature detection member (304), and the first temperature detection member (304) is communicatively connected with the heating component (4) and is suitable for detecting the discharge temperature.

Images