Driving roller and kiln

Abstract

The utility model relates to the technical field of heat treatment equipment, and particularly discloses a driving roller and a kiln, the driving roller is provided with a liquid inlet, a liquid outlet and a cooling cavity, and the liquid inlet and the liquid outlet are both communicated with the cooling cavity. According to the transmission roller, the cooling liquid can enter the cooling cavity through the liquid inlet, and when materials pass through the transmission roller, the cooling liquid can absorb heat of the materials, so that the temperature of the materials is reduced. And after the cooling liquid absorbs heat, the cooling liquid flows out through the liquid outlet, and continuous cooling of the cooling liquid on the materials is facilitated. Compared with a traditional cooling mode, the cooling cavities are formed in the transmission rollers, so that the materials can be directly cooled, the material cooling efficiency of the kiln is improved, the material cooling time is shortened, and then the production efficiency of the kiln is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat treatment equipment, and in particular to a transmission roller and a kiln. Background Art

[0002] The kiln is a commonly used equipment for heat treatment of materials. Its furnace is generally divided into three parts: the heating section, the constant temperature section and the cooling section. After the materials are heat treated in the heating section and the constant temperature section, they are cooled in the cooling section to meet the requirements of the furnace discharge temperature. For example, since silicon-carbon composite materials at high temperatures are easily oxidized in the air, the furnace discharge temperature is an important indicator when sintering silicon-carbon negative electrode materials. Therefore, the production process of silicon-carbon negative electrode materials has strict requirements on the furnace discharge temperature.

[0003] The existing cooling devices for the cooling section all adopt a ventilation channel or a water channel set on the furnace wall, and cool air or water is passed into the ventilation channel or the water channel to reduce the air temperature in the cooling section by heat exchange, thereby achieving the purpose of cooling the material. However, the cooling efficiency of the above cooling structure is low, and the material takes a long time to cool in the furnace, which seriously affects the production efficiency. Utility Model Content

[0004] In view of this, the present application provides a transmission roller and a kiln to improve the technical problem of low production efficiency caused by long cooling waiting time in the existing kiln.

[0005] An embodiment of the present application provides a transmission roller, which is configured to convey materials by rotation. The transmission roller is provided with a liquid inlet, a liquid outlet, and a cooling cavity, the liquid inlet and the liquid outlet are both connected to the cooling cavity, the coolant enters the cooling cavity through the liquid inlet, and flows out through the liquid outlet.

[0006] In the above-mentioned transmission roller, the coolant can enter the cooling cavity through the liquid inlet. When the material passes through the transmission roller, the coolant will absorb the heat of the material, thereby reducing the temperature of the material. After the coolant absorbs the heat, the coolant will flow out through the liquid outlet, which is conducive to the continuous cooling of the material by the coolant. Compared with the traditional cooling method, the present application can directly cool the material by setting a cooling cavity on the transmission roller, so as to improve the cooling efficiency of the kiln on the material, reduce the cooling time of the material, and thus improve the production efficiency of the kiln.

[0007] In at least one embodiment, along the axial direction of rotation of the driving roller, the liquid inlet and the liquid outlet are arranged at the same end of the driving roller.

[0008] In the above embodiment, since the liquid inlet and the liquid outlet are both arranged at the same end of the transmission roller, during maintenance or overhaul, the technician only needs to check one end of the transmission roller without overhauling both ends of the transmission roller, thereby reducing the technician's workload.

[0009] In at least one embodiment, the liquid inlet and the liquid outlet are arranged at an end of the transmission roller away from the driving assembly.

[0010] In the above embodiment, by arranging the liquid inlet and the liquid outlet at the end of the transmission roller away from the driving assembly, not only can the connection between the transmission roller and the driving assembly be facilitated, but also the structure of the liquid inlet (or the structure of the liquid outlet) can be prevented from occupying too much space and affecting the driving of the transmission roller by the driving assembly.

[0011] In at least one embodiment, the drive roller includes an outer tube and a liquid guide tube, the outer tube is configured to transfer material by rotation, the liquid guide tube is at least partially located inside the outer tube, the cooling chamber is located between the liquid guide tube and the outer tube, one end of the liquid guide tube is connected to the liquid inlet, and the other end of the liquid guide tube is connected to the cooling chamber.

[0012] In the above embodiment, the coolant can enter the liquid guide tube from the liquid inlet, then flow into the cooling cavity, and finally flow out through the liquid outlet. In this way, the coolant can flow inside the transmission roller, thereby achieving continuous cooling of the material.

[0013] In at least one embodiment, the transmission roller also includes a fixing member, which is installed in the cooling cavity and supported between the outer tube and the liquid guiding tube along the radial direction of the rotation of the outer tube. The fixing member rotates relative to the outer tube and / or the liquid guiding tube to make the outer tube rotate relative to the liquid guiding tube.

[0014] In the above embodiment, the fixing member can stably fix the liquid guide tube in the driving roller, reducing unnecessary vibration or deviation of the liquid guide tube during the rotation of the driving roller. Therefore, it can not only ensure that the coolant can stably flow into the cooling cavity to absorb the heat of the material and reduce the temperature of the material, but also ensure the stable operation of the driving roller and reduce the risk of friction between the liquid guide tube and the outer tube.

[0015] In at least one embodiment, the fixing member includes a fixing portion and a supporting portion, the fixing portion is provided with a mounting hole, the liquid guiding tube is passed through the mounting hole and is arranged in the fixing portion, and the supporting portion is installed in the fixing portion and abuts against the inner wall of the outer tube.

[0016] In the above embodiment, the cooperation between the fixing part and the supporting part can realize the relative rotation between the liquid guiding tube and the outer tube while realizing the stable fixing of the liquid guiding tube. Specifically, when installing the liquid guiding tube, the technician first installs the fixing part in the cooling cavity, and abuts against the inner wall of the outer tube through the supporting part, and then passes the liquid guiding tube through the installation hole and is installed on the fixing part.

[0017] In one embodiment of the present application, a kiln is provided, the kiln includes a furnace body and a transmission mechanism, the furnace body includes a heating area, a constant temperature area and a cooling area, the heating area, the constant temperature area and the cooling area are sequentially distributed along the conveying direction of the material, and the transmission mechanism is arranged in the cooling area. The transmission mechanism includes a drive assembly and the above-mentioned transmission roller, the drive assembly is connected to the transmission roller, and is configured to drive the transmission roller to rotate.

[0018] In the above-mentioned kiln, the transmission mechanism is arranged in the cooling area, and the transmission mechanism includes a transmission roller, and the transmission roller is provided with a cooling cavity, a liquid inlet and a liquid outlet. The coolant can enter the cooling cavity in the transmission roller through the liquid inlet. When the material enters the cooling area and passes through the transmission roller, the coolant inside the transmission roller will absorb the heat of the material to reduce the temperature of the material. After the coolant absorbs the heat, the coolant will flow out through the liquid outlet, which is conducive to the continuous cooling of the material by the coolant. Compared with the traditional cooling method, the kiln in the present application can directly cool the material by setting a cooling cavity in the transmission roller, so as to improve the cooling efficiency of the material, reduce the cooling time of the material, and thus improve the production efficiency of the kiln.

[0019] In at least one embodiment, the transmission mechanism further comprises a rotary joint, the rotary joint is sealedly connected to the transmission roller, and the transmission roller and the rotary joint can rotate relative to each other. The rotary joint has a liquid inlet channel and a liquid outlet channel, the liquid inlet channel and the liquid outlet channel are separated, the liquid inlet channel is connected to the liquid inlet port, and the liquid outlet channel is connected to the liquid outlet port.

[0020] In the above embodiment, the rotary joint can enable the transmission roller to rotate independently of the liquid guide tube while maintaining the flow of the coolant. In other words, the rotary joint can enable the transmission roller to rotate freely without affecting the flow of the coolant. Thereby, the stable operation of the transmission mechanism and the cooling of the material are ensured. Specifically, when the transmission mechanism transports the material, the drive assembly drives the transmission roller to rotate relative to the rotary joint. At the same time, the coolant flows to the liquid inlet through the liquid inlet channel, and flows into the cooling chamber through the liquid inlet. After the coolant absorbs the heat of the material, the coolant flows into the liquid outlet channel through the liquid outlet, and finally flows out along the liquid outlet channel.

[0021] In at least one embodiment, the rotary joint includes a first joint and a second joint, the first joint is connected to the transmission roller, the second joint is installed at the end of the first joint away from the transmission roller, a portion of the transmission roller passes through the first joint and extends into the second joint; the first joint is provided with a liquid outlet channel, and the second joint is provided with a liquid inlet channel.

[0022] In the above embodiment, by configuring the rotary joint to be two parts (the first joint and the second joint), it is helpful to reduce maintenance and replacement costs. For example, if one of the first joint and the second joint has a problem or wears out, the technician only needs to replace the corresponding joint instead of the entire rotary joint.

[0023] In at least one embodiment, the transmission mechanism further includes a liquid flow meter installed in the liquid inlet channel to monitor the flow rate of the coolant in the liquid inlet channel; and / or the transmission mechanism further includes a temperature measuring component installed in the liquid inlet channel to monitor the temperature of the coolant in the liquid inlet channel.

[0024] In the above embodiment, through the liquid flow meter, the transmission mechanism can obtain the flow conditions of the coolant in the transmission roller in real time, such as the flow rate and flow rate of the coolant, so as to control the flow of the coolant and ensure the normal operation of the transmission roller. In addition, through the setting of the temperature measuring component, the transmission mechanism can obtain the temperature data of the coolant in real time, including the temperature change trend and instantaneous temperature value, thereby reducing the risk of reducing the cooling effect of the transmission roller due to excessively high coolant temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope.

[0026] Figure 1 A structural block diagram of a kiln provided in one embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of a transmission mechanism provided in one embodiment of the present application;

[0028] Figure 3 for Figure 2 A schematic structural diagram of the transmission mechanism from another angle is shown, wherein the transmission mechanism omits the first tube group and the second tube group;

[0029] Figure 4 for Figure 2 A schematic structural diagram of the transmission mechanism at another angle is shown, wherein the first tube group and the second tube group are both connected to the rotary joint;

[0030] Figure 5 for Figure 3 A partial enlarged view of point V in the middle;

[0031] Figure 6 for Figure 3 A partial enlarged view of the middle VI;

[0032] Figure 7 for Figure 5 Schematic diagram of the structure of the fixing parts.

[0033] Description of main component symbols:

[0034] Kiln 1

[0035] Material 2

[0036] Transmission mechanism 10

[0037] Transmission roller 11

[0038] Outer tube 111

[0039] Catheter 112

[0040] Cooling chamber 113

[0041] Fixing 114

[0042] Fixed part 1141

[0043] Supporting part 1142

[0044] Mounting hole 1143

[0045] Liquid inlet 115

[0046] Liquid outlet 116

[0047] Drive assembly 12

[0048] Rotary joint 13

[0049] First connector 131

[0050] Liquid outlet channel 1311

[0051] Second connector 132

[0052] Liquid inlet channel 1321

[0053] Liquid flow meter 14

[0054] Temperature measuring device 15

[0055] First tube group 16

[0056] The second tube group 17

[0057] Tee connector 18

[0058] Furnace body 20

[0059] Heating zone 21

[0060] Constant temperature zone 22

[0061] Cooling zone 23 DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0064] The embodiment of the present application provides a transmission roller, which is configured to convey materials by rotation. The transmission roller is provided with a liquid inlet, a liquid outlet and a cooling cavity, the liquid inlet and the liquid outlet are both connected to the cooling cavity, the coolant enters the cooling cavity through the liquid inlet, and flows out through the liquid outlet.

[0065] In the above-mentioned transmission roller, the coolant can enter the cooling cavity through the liquid inlet. When the material passes through the transmission roller, the coolant will absorb the heat of the material, thereby reducing the temperature of the material. After the coolant absorbs the heat, the coolant will flow out through the liquid outlet, which is conducive to the continuous cooling of the material by the coolant. Compared with the traditional cooling method, the present application can directly cool the material by setting a cooling cavity on the transmission roller, so as to improve the cooling efficiency of the material, reduce the cooling time of the material, and thus improve the production efficiency of the kiln.

[0066] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other. It should be noted that in the present application, Figure 3 , Figure 4 , Figure 5 as well as Figure 6 The dotted line in the figure represents the internal structure of the transmission mechanism, which is to facilitate those skilled in the art to understand the solution of the present application and is not particularly limiting.

[0067] An embodiment of the present application provides a kiln 1, which is used to perform heat treatment on a material 2. The material 2 may be a graphite negative electrode material, a silicon-carbon composite material, or other material that requires heat treatment, which is not limited in the present application.

[0068] like Figure 1 As shown, the kiln 1 includes a furnace body 20 and a transmission mechanism 10, and the furnace body 20 includes a heating area 21, a constant temperature area 22 and a cooling area 23. The heating area 21, the constant temperature area 22 and the cooling area 23 are distributed in sequence along the conveying direction of the material 2.

[0069] It can be understood that when heat treating material 2, the technician first places material 2 in the furnace body 20, and then material 2 passes through the heating area 21 and is heated to the first target temperature (specifically, the temperature required for the reaction of material 2) in the heating area 21. After material 2 is heated to the first target temperature, material 2 is moved to the constant temperature area 22 for reaction treatment. After the reaction is completed, material 2 enters the cooling area 23 and is cooled in the cooling area 23. After material 2 is cooled to the second target temperature (specifically, the temperature required for material 2 to be discharged from the furnace after the reaction), material 2 can be taken out of the furnace body 20 and transferred to the next process.

[0070] Exemplarily, material 2 is a graphite negative electrode material, and the carbonization temperature of the graphite negative electrode material is 1250°C and the furnace temperature is 160°C. When the graphite negative electrode material is heat-treated, the technician first places the graphite negative electrode material to be carbonized in the furnace body 20. Then, the graphite negative electrode material passes through the heating area 21, and the kiln 1 heats the graphite negative electrode material and heats the graphite negative electrode material to 1250°C. After the graphite negative electrode material is heated to 1250°C, the graphite negative electrode material is moved to the constant temperature area 22 of 1250°C for carbonization reaction. After the carbonization reaction is completed, the graphite negative electrode material is moved to the cooling area 23 again, and cooled to 100°C. Finally, the cooled carbonized negative electrode material is sucked out, packaged and entered the next production process.

[0071] In some embodiments, Figure 2 , Figure 3 as well as Figure 5 As shown, the transmission mechanism 10 is installed in the cooling area 23, and the transmission mechanism 10 includes a driving assembly 12 and a driving roller 11. The driving assembly 12 is connected to the driving roller 11 to drive the driving roller 11 to rotate and convey the material 2. The driving roller 11 is provided with a liquid inlet 115, a liquid outlet 116 and a cooling cavity 113. The liquid inlet 115 and the liquid outlet 116 are both connected to the cooling cavity 113. The liquid inlet 115 is configured to be connected to a liquid supply device (not shown) so that the coolant in the liquid supply device enters the cooling cavity 113 through the liquid inlet 115 and flows out through the liquid outlet 116.

[0072] It can be understood that when the kiln 1 is working, the coolant in the external liquid supply device can enter the cooling cavity 113 in the driving roller 11 through the liquid inlet 115. When the material 2 enters the cooling area 23 and passes through the driving roller 11, the coolant inside the driving roller 11 will absorb the heat of the material 2 to reduce the temperature of the material 2. After the coolant absorbs the heat, the coolant will flow out through the liquid outlet 116, which is conducive to the continuous cooling of the material 2 by the coolant.

[0073] Compared with the traditional cooling method, the kiln 1 in the present application can directly cool the material 2 by setting the cooling cavity 113 in the transmission roller 11 in the transmission mechanism 10, rather than indirectly cooling it through air. Therefore, the cooling efficiency of the kiln 1 on the material 2 can be greatly improved, the cooling time of the material 2 can be reduced, and the production efficiency of the kiln 1 can be improved.

[0074] In some embodiments, along the axial direction of the transmission roller 11, the liquid inlet 115 and the liquid outlet 116 are arranged at the same end of the transmission roller 11. Since the liquid inlet 115 and the liquid outlet 116 are arranged at the same end of the transmission roller 11, during maintenance or overhaul, the technician only needs to check one end of the transmission roller 11, without having to overhaul both ends of the transmission roller 11, thereby reducing the workload of the staff.

[0075] In some embodiments, the liquid inlet 115 and the liquid outlet 116 are disposed at one end of the transmission roller 11 away from the drive assembly 12. By disposing both the liquid inlet 115 and the liquid outlet 116 at the end of the transmission roller 11 away from the drive assembly 12, the risk of the structure of the liquid inlet 115 (or the structure of the liquid outlet 116) obstructing or interfering with the connection between the transmission roller 11 and the drive assembly 12 can be reduced, thereby facilitating the connection between the transmission roller 11 and the drive assembly 12, and the structure of the liquid inlet 115 (or the structure of the liquid outlet 116) can be avoided from occupying too much space and affecting the driving of the drive assembly 12 to the transmission roller 11.

[0076] In other embodiments, the liquid inlet 115 and the liquid outlet 116 may also be respectively disposed at both ends of the transmission roller 11 along the axial direction of the transmission roller 11. In other words, the coolant may enter from one end of the transmission roller 11 and then be discharged from the other end of the transmission roller 11.

[0077] In some embodiments, Figure 3 , Figure 5 and Figure 6 As shown, the transmission roller 11 includes an outer tube 111 and a liquid guide tube 112, and the outer tube 111 is configured to transfer the material 2 by rotation. Specifically, the driving assembly 12 is connected to the outer tube 111 through a universal shaft connector (not shown in the figure). When the transmission mechanism 10 is working, the driving assembly 12 drives the outer tube 111 to rotate around its own axis through the universal shaft connector. Due to the friction between the material 2 and the outer tube 111, the outer tube 111 drives the material 2 to move along the conveying direction of the material 2, that is, the conveying of the material 2 is realized.

[0078] In some embodiments, the liquid conduit 112 is at least partially located in the outer tube 111, the cooling cavity 113 is located between the liquid conduit 112 and the outer tube 111, one end of the liquid conduit 112 is connected to the liquid inlet 115, and the other end of the liquid conduit 112 is connected to the cooling cavity 113. It can be understood that when the transmission mechanism 10 is working, the coolant in the external liquid supply device first enters the liquid conduit 112 from the liquid inlet 115, then flows into the cooling cavity 113 along the liquid conduit 112, and finally flows out through the liquid outlet 116. As a result, the coolant flows inside the transmission roller 11, thereby realizing continuous cooling of the material 2 and improving the cooling efficiency.

[0079] In some embodiments, the transmission roller 11 further includes a fixing member 114, which is installed in the cooling cavity 113 and supported between the outer tube 111 and the liquid guiding tube 112 along the radial direction of the rotation of the outer tube 111. The fixing member 114 rotates relative to the outer tube 111 so that the outer tube 111 rotates relative to the liquid guiding tube 112. It can be understood that when the driving assembly 12 drives the outer tube 111 to rotate to convey the material 2, the fixing member 114 and the liquid guiding tube 112 can remain stationary relative to the outer tube 111.

[0080] It should be noted that the liquid guide tube 112 can be stably fixed in the driving roller 11 by setting the fixing member 114. In this way, not only can the coolant stably flow into the cooling chamber 113 to absorb the heat of the material 2 and reduce the temperature of the material 2, but also the liquid guide tube 112 can be prevented from generating unnecessary vibration or deviation during the rotation of the driving roller 11, thereby ensuring the stable operation of the driving roller 11 and reducing the risk of friction between the liquid guide tube 112 and the outer tube 111.

[0081] In other embodiments, the fixing member 114 can also rotate relative to the catheter 112 so that the outer tube 111 is relative to the catheter 112. In other words, the fixing member 114 is fixedly connected to the outer tube 111, and when the outer tube 111 rotates, the fixing member 114 can rotate with the outer tube 111.

[0082] In some more specific embodiments, Figure 3 , Figure 5 and Figure 7 As shown, the fixing member 114 includes a fixing portion 1141 and a supporting portion 1142. The fixing portion 1141 is provided with a mounting hole 1143. The liquid guiding tube 112 is inserted into the fixing portion 1141 through the mounting hole 1143. The supporting portion 1142 is mounted on the fixing portion 1141 and abuts against the inner wall of the outer tube 111. Through the cooperation of the fixing portion 1141 and the supporting portion 1142, the liquid guiding tube 112 can be stably fixed while realizing relative rotation between the liquid guiding tube 112 and the outer tube 111.

[0083] Specifically, the fixing portion 1141 is provided with a top screw (not shown). When installing the liquid guide tube 112, the technician installs the fixing member 114 in the cooling cavity 113, and abuts against the inner wall of the outer tube 111 through the supporting portion 1142. Then, the liquid guide tube 112 is passed through the mounting hole 1143 and installed on the fixing portion 1141, and the liquid guide tube 112 is locked by the top screw.

[0084] In some more specific embodiments, the fixing portion 1141 may also be designed to have a slot, and the catheter 112 may be designed to have a corresponding protrusion. The catheter 112 may be inserted into the fixing portion 1141 through the slot, and then the protrusion may be inserted into the slot by rotating or pushing and pulling, thereby achieving fixation. Alternatively, in other more specific embodiments, the fixing portion 1141 may also be designed to have a clamping claw shape, and the catheter 112 may be fixed to the fixing portion 1141 by clamping.

[0085] In some embodiments, Figure 3 , Figure 5 and Figure 6 As shown, the transmission mechanism 10 further includes a rotary joint 13, which is sealedly connected to the transmission roller 11, and the transmission roller 11 and the rotary joint 13 can rotate relative to each other. The rotary joint 13 has a liquid inlet channel 1321 and a liquid outlet channel 1311, the liquid inlet channel 1321 and the liquid outlet channel 1311 are separated, the liquid inlet channel 1321 is connected to the liquid inlet port 115, and the liquid outlet channel 1311 is connected to the liquid outlet port 116.

[0086] It can be understood that when the transmission mechanism 10 conveys the material 2, the driving assembly 12 drives the transmission roller 11 to rotate relative to the rotary joint 13, and at the same time, the coolant flows to the liquid inlet 115 through the liquid inlet channel 1321, and flows into the cooling cavity 113 through the liquid inlet 115 to absorb the heat of the material 2. After the coolant absorbs the heat of the material 2, the coolant flows into the liquid outlet channel 1311 through the liquid outlet 116, and finally flows out along the liquid outlet channel 1311.

[0087] By setting the rotary joint 13, the transmission roller 11 can rotate independently of the liquid guide tube 112 while maintaining the flow of the coolant. In other words, the rotary joint 13 allows the transmission roller 11 to rotate freely without affecting the flow of the coolant, thereby ensuring the stable operation of the transmission mechanism 10 and the cooling of the material 2.

[0088] In some more specific embodiments, Figure 3 , Figure 5 and Figure 6 As shown, the rotary joint 13 includes a first joint 131 and a second joint 132 . The first joint 131 is provided with the above-mentioned liquid outlet channel 1311 , and the second joint 132 is provided with the above-mentioned liquid inlet channel 1321 .

[0089] The first joint 131 is connected to the transmission roller 11, and the second joint 132 is installed at the end of the first joint 131 away from the transmission roller 11. Part of the transmission roller 11 passes through the first joint 131 and extends into the second joint 132. Specifically, the liquid guide tube 112 in the transmission roller 11 passes through the first joint 131, extends into the second joint 132, and communicates with the liquid inlet channel 1321.

[0090] When the transmission mechanism 10 is working, the coolant flows into the second joint 132 along the liquid inlet channel 1321, and flows into the liquid guide tube 112 through the liquid inlet port 115, and then flows into the cooling chamber 113 along the liquid guide tube 112. When the material 2 passes through the transmission roller 11, the coolant absorbs the heat of the material 2. After the coolant absorbs the heat, the coolant flows to the liquid outlet channel 1311 in the first joint 131 through the liquid outlet port 116, and is finally discharged through the liquid outlet channel 1311.

[0091] It should be noted that by configuring the rotary joint 13 to be two parts (the first joint 131 and the second joint 132), it is helpful to reduce maintenance and replacement costs. For example, if one of the first joint 131 and the second joint 132 has a problem or wears out, the technician only needs to replace the corresponding joint instead of the entire rotary joint 13.

[0092] In other embodiments, the second joint 132 can be omitted, and the first joint 131 is provided with both the liquid inlet channel 1321 and the liquid outlet channel 1311. Part of the transmission roller 11 is passed through the first joint 131, and the liquid guide tube 112 in the transmission roller 11 is connected to the liquid inlet channel 1321, and the cooling cavity 113 of the transmission roller 11 is connected to the liquid outlet channel 1311.

[0093] In some embodiments, Figure 2 As shown, the transmission mechanism 10 further includes a liquid flow meter 14, which is installed in the liquid inlet channel 1321 to monitor the flow of the coolant in the liquid inlet channel 1321. Through the liquid flow meter 14, the transmission mechanism 10 can obtain the flow of the coolant in the transmission roller 11 in real time, such as the flow rate and flow rate of the coolant, so as to control the flow of the coolant and ensure the normal operation of the transmission roller 11.

[0094] In some embodiments, Figure 2 As shown, the transmission mechanism 10 further includes a temperature measuring element 15, which is installed in the liquid inlet channel 1321 to monitor the temperature of the coolant in the liquid inlet channel 1321. By setting the temperature measuring element 15, the transmission mechanism 10 can obtain the temperature data of the coolant in real time, including the temperature change trend and instantaneous temperature value, thereby reducing the risk of reducing the cooling effect of the transmission roller 11 due to excessively high coolant temperature.

[0095] Preferably, the temperature measuring element 15 is a temperature measuring point thermal resistor. In other embodiments, the temperature measuring element 15 can also be other temperature measuring structures.

[0096] In some embodiments, Figure 2 and Figure 4 As shown, there are multiple transmission rollers 11 and rotary joints 13 , and the rotary joints 13 are arranged one-to-one with the transmission rollers 11 . Multiple transmission rollers 11 are arranged at intervals along the conveying direction of the material 2 , and all the transmission rollers 11 are connected to the driving assembly 12 .

[0097] The transmission mechanism 10 also includes a first tube group 16 and a second tube group 17. The liquid inlet channel 1321 of each rotary joint 13 is connected to the first tube group 16, and the liquid outlet channel 1311 of each rotary joint 13 is connected to the second tube group 17. The first tube group 16 is configured to transport coolant to all liquid inlet channels 1321, and the second tube group 17 is configured to recover coolant flowing out of all liquid outlet channels 1311.

[0098] In some more specific embodiments, the first tube group 16 is connected to the liquid inlet channel 1321 in the rotary joint 13 through the three-way joint 18, and the second tube group 17 is connected to the liquid outlet channel 1311 in the rotary joint 13 through the three-way joint 18. It is worth noting that the three-way joint 18 can realize that one interface in the first tube group 16 (or the second tube group 17) is connected to two rotary joints 13. In this way, not only can the use of components in the transmission mechanism 10 be reduced, the manufacturing cost can be reduced, but also the overall structure of the transmission mechanism 10 can be made more compact.

[0099] In other embodiments, the first tube group 16 can also be connected to the liquid inlet channel 1321 in the rotary joint 13 through a single-way joint, and the second tube group 17 can also be connected to the liquid outlet channel 1311 in the rotary joint 13 through a single-way joint. The present application does not limit this, and technicians in this field can choose according to actual conditions.

[0100] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.

Claims

1. A transmission roller, configured to convey material by rotation, characterized in that: The driving roller is provided with a liquid inlet, a liquid outlet and a cooling cavity. The liquid inlet and the liquid outlet are both connected to the cooling cavity. The cooling liquid enters the cooling cavity through the liquid inlet and flows out through the liquid outlet.

2. The transmission roller according to claim 1, characterized in that: Along the axial direction of the driving roller, the liquid inlet and the liquid outlet are arranged at the same end of the driving roller.

3. The transmission roller according to claim 2, characterized in that: The liquid inlet and the liquid outlet are arranged at one end of the transmission roller away from the driving assembly.

4. The driving roller according to any one of claims 1 to 3, characterized in that: The driving roller includes an outer tube and a liquid guide tube, the outer tube is configured to transfer the material by rotation, the liquid guide tube is at least partially located inside the outer tube, the cooling chamber is located between the liquid guide tube and the outer tube, one end of the liquid guide tube is connected to the liquid inlet, and the other end of the liquid guide tube is connected to the cooling chamber.

5. The transmission roller according to claim 4, characterized in that: The transmission roller also includes a fixing member, which is installed in the cooling cavity and supported between the outer tube and the liquid guiding tube along the radial direction of the rotation of the outer tube. The fixing member rotates relative to the outer tube and / or the liquid guiding tube to make the outer tube rotate relative to the liquid guiding tube.

6. The transmission roller according to claim 5, characterized in that: The fixing member includes a fixing part and a supporting part. The fixing part is provided with a mounting hole. The liquid guiding tube is passed through the mounting hole and is arranged in the fixing part. The supporting part is installed in the fixing part and abuts against the inner wall of the outer tube.

7. A kiln, characterized in that: It comprises a furnace body and a transmission mechanism, wherein the furnace body comprises a heating area, a constant temperature area and a cooling area, the heating area, the constant temperature area and the cooling area are sequentially distributed along the conveying direction of the material, and the transmission mechanism is installed in the cooling area; The transmission mechanism comprises a driving assembly and a transmission roller as claimed in any one of claims 1 to 6, wherein the driving assembly is connected to the transmission roller and is configured to drive the transmission roller to rotate.

8. The kiln according to claim 7, characterized in that: The transmission mechanism also includes a rotating joint, which is sealed and connected to the transmission roller, and the transmission roller and the rotating joint can rotate relative to each other; the rotating joint has a liquid inlet channel and a liquid outlet channel, the liquid inlet channel and the liquid outlet channel are separated, the liquid inlet channel is connected to the liquid inlet port, and the liquid outlet channel is connected to the liquid outlet port.

9. The kiln according to claim 8, characterized in that The rotary joint includes a first joint and a second joint, the first joint is connected to the transmission roller, the second joint is installed at the end of the first joint away from the transmission roller, a part of the transmission roller passes through the first joint and extends into the second joint; the first joint is provided with the liquid outlet channel, and the second joint is provided with the liquid inlet channel.

10. The kiln according to claim 8, characterized in that: The transmission mechanism further comprises a liquid flow meter, which is installed in the liquid inlet channel to monitor the flow of the coolant in the liquid inlet channel; and / or, The transmission mechanism further comprises a temperature measuring component, which is installed in the liquid inlet channel to monitor the temperature of the coolant in the liquid inlet channel.

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