Rotary body temperature measuring device and rotary kiln

Abstract

The invention relates to the technical field of rotary structure temperature measurement, in particular to a rotary body temperature measuring device and a rotary kiln, which comprises a rack, a telescopic cylinder, a temperature measuring assembly and a driving assembly. The rack is used for providing a mounting foundation; the telescopic cylinder is movably installed on the rack along the X axis, and the two ends of the telescopic cylinder are a measuring end and a contact end respectively. The temperature measuring assembly is arranged at the measuring end; the driving assembly is used for driving the telescopic cylinder to move along the X-axis or has a trend of moving along the X-axis, so that the contact end of the telescopic cylinder is in sealing fit with an object to be subjected to temperature measurement, and sundries are prevented from entering the telescopic cylinder from the contact end. The cylinder wall of the telescopic cylinder can prevent high-temperature flue gas from directly contacting the temperature measuring assembly, so that the interference of hot flue gas on temperature measurement is reduced, and the temperature measuring accuracy is improved; the driving assembly enables the contact end of the telescopic cylinder to be in sealing fit with the rotary cylinder, prevents impurities from entering, and guarantees the temperature measurement accuracy.

Description

Technical Field

[0001] This application relates to the field of rotary structure temperature measurement technology, and more specifically, to a rotary body temperature measurement device and a rotary kiln. Background Technology

[0002] A rotary kiln is a heavy-duty high-temperature processing device that heats materials inside the kiln by the continuous rotation of its cylinder. During operation, a motor drives the kiln cylinder to rotate slowly via a gear ring. Material enters from the high end (kiln tail) and exits from the low end (kiln head), while fuel (such as pulverized coal or natural gas) is burned from the side or bottom of the rotary kiln, creating high-temperature flames and airflow to heat the material. Due to its large processing capacity, continuous operation, and uniform and controllable reaction, it plays an irreplaceable core role in many fields such as building materials, metallurgy, chemicals, and environmental protection.

[0003] As an important heat treatment equipment, operating temperature monitoring is one of the core technologies to ensure its stable operation, product quality and energy efficiency management. Since the rotary kiln is a large, continuously rotating, high-temperature equipment, the operating temperature of an externally heated rotary kiln can reach 1200°C. The difficulty of accurately measuring its temperature is much higher than that of static and low-temperature heat treatment furnaces.

[0004] Currently, traditional furnace temperature detection methods still mainly rely on traditional contact temperature measurement (such as thermocouples), which has advantages such as accurate measurement and low cost, but cannot measure the temperature of the rotating cylinder wall surface during operation.

[0005] Infrared temperature measurement technology for rotary kilns is currently the mainstream non-contact temperature monitoring method. It measures temperature by detecting the infrared radiation emitted by the surface of an object, and features rapid, non-destructive, and real-time performance, making it a key technology for measuring the high-temperature zone of the kiln shell. For indirect-heated rotary kilns, fuel is heated through heating channels on the outer wall of the kiln. When the infrared temperature sensor needs to measure the temperature of the rotary kiln shell, it must pass through the flue gas (i.e., a mixture of gas and dust) within the heating channels. However, the hot flue gas scatters and absorbs infrared radiation, interfering with the infrared temperature measurement and affecting its reliability. Other remote sensing temperature measurement technologies are also affected to varying degrees by the state of their propagation medium (composition, concentration, temperature, impurities, etc.). Summary of the Invention

[0006] The purpose of this application is to provide a rotating body temperature measuring device and a rotating kiln, which can reduce flue gas interference for more accurate temperature measurement.

[0007] To achieve the above objectives, in a first aspect, this application provides a rotating body temperature measuring device, comprising: A rack, which provides a mounting base; A telescopic cylinder is movably mounted on the frame along the X-axis, with a measuring end and a contact end at its two ends along the X-axis. A temperature measuring component, which is disposed at the measuring end, is used to acquire the temperature of the object to be measured; A drive assembly is provided to drive the telescopic cylinder to move along the X-axis or to have a tendency to move along the X-axis, so that the contact end of the telescopic cylinder is sealed with the object to be measured to prevent foreign matter from entering the telescopic cylinder from the contact end.

[0008] In an optional embodiment, a sealing contact block is also included, which is disposed at the contact end. The driving assembly is used to drive the telescopic cylinder to move along the X-axis or to have a tendency to move along the X-axis, so that the sealing contact block seals with the object to be measured to prevent foreign matter from entering the telescopic cylinder from the contact end.

[0009] In an optional embodiment, the sealing contact block is provided with a contact end face, which is configured as an arc-shaped end face.

[0010] In an optional embodiment, the frame includes a mounting plate and a guide sleeve, the guide sleeve being disposed on the mounting plate, and the telescopic cylinder being slidably mounted in the guide sleeve.

[0011] In an optional embodiment, the drive assembly includes a mounting member and a first elastic member. The mounting member is disposed on the frame, and the first elastic member is capable of telescopic rebound. One end of the first elastic member is disposed on the mounting member, and the other end of the first elastic member pushes the telescopic cylinder to move along the X-axis direction or has a tendency to move along the X-axis.

[0012] In an optional embodiment, the telescopic cylinder is configured as a stepped sleeve with a stepped surface, and the first elastic element pushes against the stepped surface of the stepped sleeve, causing the telescopic cylinder to move along the X-axis direction or to have a tendency to move along the X-axis.

[0013] In an optional embodiment, the drive assembly includes a telescopic member for driving the telescopic cylinder to move along the X-axis or having a tendency to move along the X-axis.

[0014] In an optional embodiment, the telescopic cylinder is connected to a purging port.

[0015] In an optional embodiment, the telescopic cylinder includes a heat insulation layer.

[0016] In an optional embodiment, the measuring end is provided with a mounting end cover, the mounting end cover is detachably connected to the measuring end, and the temperature measuring component is disposed on the mounting end cover.

[0017] Secondly, this application provides a rotary kiln, including a rotary body temperature measuring device as described in any of the foregoing embodiments.

[0018] The telescopic cylinder's wall prevents high-temperature flue gas from directly contacting the temperature measuring components. During rotary kiln operation, hot flue gas not only interferes with infrared and other remote sensing temperature measurement but also erodes the temperature measuring components. The telescopic cylinder effectively reduces this adverse interference, improving measurement accuracy while protecting the temperature measuring components from erosion, ensuring their operational status and extending their service life. The drive assembly ensures a sealed fit between the telescopic cylinder's contact end and the rotary cylinder body, preventing impurities, including hot flue gas, from entering and guaranteeing measurement accuracy. Since the rotary kiln rotates continuously, traditional contact temperature measuring methods cannot measure the cylinder wall temperature during rotation. This rotary temperature measuring device can accurately measure temperature without shutting down the kiln, ensuring production continuity and product quality stability.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of one embodiment of the rotary kiln provided in this application; Figure 2 A schematic diagram of one embodiment of the rotating body temperature measuring device provided in this application; Figure 3 for Figure 2 Sectional view along the AA direction.

[0022] icon: 100-Rotating body temperature measuring device; 110 - Frame; 111 - Mounting plate; 112 - Guide sleeve; 120 - Telescopic cylinder; 121 - Measuring end; 122 - Contact end; 123 - Stepped surface; 124 - Purge interface; 125 - Mounting end cap; 130 - Sealing contact block; 131 - Contact end face; 132 - Fastener; 140 - Temperature sensing component; 150 - Drive assembly; 151 - Mounting component; 152 - First elastic element; 200-Outer cylinder; 210-Rotating cylinder; 220-Insulation layer; 230-Burner; 240-Flue gas outlet; 250-Outer shell. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] like Figure 1 As shown, in a first aspect, embodiments of this application provide a rotating body temperature measuring device 100. When applied to temperature measurement of the rotating cylinder 210 of a rotary kiln, the rotating body temperature measuring device 100 can reduce interference from flue gas and improve temperature measurement accuracy. Of course, the rotating body temperature measuring device 100 can also be applied to temperature measurement of other devices, such as brake discs. This rotating body temperature measuring device 100 can reduce interference from dust, dirt, and other debris, improving the accuracy of temperature measurement of the brake disc.

[0027] The following description uses the application of the rotating body temperature measuring device 100 to the rotating cylinder 210 of a rotary kiln as an example to illustrate the embodiments of the rotating body temperature measuring device 100 of this application.

[0028] like Figure 2 and Figure 3 As shown, the rotating body temperature measuring device 100 provided in the embodiments of this application includes a frame 110, a telescopic cylinder 120, a temperature measuring component 140, and a drive component 150.

[0029] like Figure 2 As shown, the frame 110 is used to provide the mounting base. The frame 110 can be mounted on the stationary outer cylinder 200 of the rotary kiln to be tested (i.e., the outer cylinder 200 does not rotate when the rotary kiln is in operation), and the mounting method can be welding, snap-fitting, or bolting.

[0030] like Figure 3 As shown, the X-axis is parallel to the axis of the telescopic cylinder 120.

[0031] like Figure 3 As shown, the telescopic cylinder 120 is movably mounted on the frame 110 along the X-axis. Along the X-axis, the two ends of the telescopic cylinder 120 are the measuring end 121 and the contact end 122, respectively.

[0032] A temperature measuring component 140 is installed at the measuring end 121 to acquire the temperature of the object to be measured. The wall of the telescopic cylinder 120 blocks direct contact between the temperature measuring component 140 and the flue gas, effectively reducing temperature measurement interference, improving temperature measurement accuracy, and protecting the temperature measuring component from the erosion of high-temperature flue gas. The temperature of the high-temperature flue gas is at least 200°C.

[0033] For example, the temperature measuring component 140 is a remote temperature sensing component, such as an infrared temperature sensor, a laser thermometer, a microwave thermometer, etc.

[0034] It should be understood that the debris can be any substance that can easily interfere with temperature measurement. In this embodiment, the debris is, for example, flue gas (i.e., a mixture of gas and dust). In other embodiments, the debris can also refer to other substances that can easily interfere with temperature measurement. For example, when the rotating body temperature measuring device 100 is applied to a brake disc, the debris can be dirt, dust, etc.

[0035] During use, the contact end 122 of the telescopic cylinder 120 passes through the flue gas channel formed by the outer cylinder 200 and the rotating cylinder 210 and contacts the rotating cylinder 210 of the rotary kiln. The measuring end 121 is located outside the outer cylinder 200 of the rotary kiln. The temperature measuring component 140 measures the temperature of the rotating cylinder 210 through the telescopic cylinder 120. The drive component 150 is used to drive the telescopic cylinder 120 to move along the X-axis or to make the telescopic cylinder 120 tend to move along the X-axis, so that the contact end 122 of the telescopic cylinder 120 seals with the object to be measured (the rotating cylinder 210 of the rotary kiln) to prevent foreign objects from entering the telescopic cylinder 120 from the contact end 122, thereby reducing the interference of flue gas on the temperature measuring component 140, improving the temperature measurement accuracy, and eliminating the need to stop the rotating cylinder 210 for temperature measurement, thus avoiding production disruption.

[0036] The wall of the telescopic cylinder 120 largely prevents the temperature measuring component 140 from directly contacting the high-temperature flue gas. For infrared temperature measurement, during the operation of the rotary kiln, the hot flue gas (a mixture of gas and dust) generated by fuel combustion scatters and absorbs infrared radiation, interfering with infrared temperature measurement. The presence of the telescopic cylinder 120 avoids direct contact between the flue gas and the temperature measuring component 140, effectively reducing this interference and thus improving the accuracy of temperature measurement.

[0037] The drive assembly 150 drives the telescopic cylinder 120 to move along the X-axis or has a tendency to move along the X-axis, so that the contact end 122 of the telescopic cylinder 120 is sealed with the object to be measured (the rotating cylinder 210 of the rotary kiln), preventing foreign matter from entering the telescopic cylinder 120 from the contact end 122. This further reduces the interference of external factors on the temperature measuring assembly 140 and ensures the accuracy of temperature measurement.

[0038] A rotary kiln is a large, continuously rotating, high-temperature device. Traditional contact temperature measurement methods cannot measure the wall temperature of the rotating cylinder 210 during operation. However, this rotating body temperature measuring device 100, through a reasonable mechanical structure, can accurately measure the high-temperature rotating cylinder without stopping the kiln. The contact end 122 of the telescopic cylinder 120 passes through the flue gas channel formed by the outer cylinder 200 and the rotating cylinder 210 and contacts the rotating cylinder 210. The measuring end 121 is located outside the outer cylinder 200 of the rotary kiln. The temperature measuring component 140 measures the temperature of the rotating cylinder 210 through the telescopic cylinder 120, avoiding production disruptions caused by shutdown for temperature measurement and ensuring production continuity.

[0039] To further improve the sealing fit between the contact end 122 and the object to be measured, such as Figure 2 and Figure 3 As shown, in one embodiment, the rotating body temperature measuring device 100 further includes a sealing contact block 130, which is disposed at the contact end 122. The driving component 150 is used to drive the telescopic cylinder 120 to move along the X-axis or to have a tendency to move along the X-axis, so that the sealing contact block 130 seals with the object to be measured, thereby preventing foreign matter from entering the telescopic cylinder 120 from the contact end 122.

[0040] For example, such as Figure 3 As shown, the contact end 122 is provided with a fastener 132, such as a fixed flange, and the sealing contact block 130 is fixedly disposed on the fixed flange, such as by bolt connection or riveting. In another embodiment, the fastener 132 is provided as a slot housing, and the sealing contact block 130 is snapped into the slot housing.

[0041] For example, the sealing contact block 130 is configured as a wear-resistant carbon block or a wear-resistant graphite block.

[0042] The drive assembly 150 drives the telescopic cylinder 120 to move along the X-axis or has a tendency to move along the X-axis, so that the sealing contact block 130 located at the contact end 122 is in a tight seal with the object to be measured. This design can form a reliable sealing barrier to prevent foreign matter from entering the telescopic cylinder 120 from the contact end 122. For example, in the case of rotary kiln temperature measurement, it can prevent hot flue gas (a mixture of gas and dust) generated by fuel combustion from entering the telescopic cylinder 120, avoid interference from flue gas scattering and absorption of infrared radiation, ensure that the temperature measuring assembly 140 can accurately obtain the temperature information of the object to be measured, and protect the temperature measuring assembly from the erosion of high-temperature flue gas.

[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the sealing contact block 130 is provided with a contact end face 131, which is configured as an arc-shaped end face; as Figure 1 As shown, the arc-shaped end face on the sealing contact block 130 matches the outer wall surface of the rotary cylinder 210.

[0044] The arc-shaped end face design allows the sealing contact block 130 to fit more tightly with the outer wall of the rotary cylinder 210. Since the rotary cylinder 210 itself rotates, its outer wall is arc-shaped. The matching arc-shaped end face can better conform to the shape of the cylinder, reducing the gap between the two, thereby effectively preventing external debris (such as dust, smoke, etc.) from entering the telescopic cylinder 120, avoiding interference from debris with the temperature measuring component 140, and ensuring the normal operation of the temperature measuring device.

[0045] During the rotation of the rotary cylinder 210, the arc-shaped end face maintains a relatively stable contact with the outer wall of the cylinder. Compared to planar contact, the arc-shaped contact can better adapt to the movement trajectory of the cylinder during rotation, reduce gap changes caused by cylinder rotation, maintain a good dynamic sealing effect, and further improve the reliability of the seal.

[0046] A good seal can further prevent external environmental factors (such as high-temperature flue gas) from affecting the temperature measuring component 140 at the measuring end 121. The arc-shaped end face sealing design can better isolate the external environment, provide a relatively stable measurement environment for the temperature measuring component 140, reduce the impact of external interference on the temperature measurement results, and thus improve the accuracy and reliability of temperature measurement.

[0047] like Figure 3 As shown, in one embodiment, the frame 110 includes a mounting plate 111 and a guide sleeve 112, the guide sleeve 112 being disposed on the mounting plate 111. Exemplarily, the guide sleeve 112 and the mounting plate 111 are fixedly connected by welding or integral molding.

[0048] The telescopic cylinder 120 is slidably installed in the guide sleeve 112. The outer wall of the telescopic cylinder 120 is slidably sealed with the inner wall of the guide sleeve 112. The guide sleeve 112 restricts the displacement of the telescopic cylinder 120 in the radial direction.

[0049] In this embodiment, the guide sleeve 112 is fixed to the mounting plate 111, providing a clear movement track for the telescopic cylinder 120. The telescopic cylinder 120 slides within the guide sleeve 112, ensuring it can only move linearly along the direction defined by the guide sleeve 112 (positive or negative X-axis direction). This effectively prevents the telescopic cylinder 120 from deviating, swaying, or twisting during movement, thus guaranteeing the accuracy and stability of its movement. For example, in the rotating body temperature measuring device 100, the telescopic cylinder 120 needs to move accurately to align the sealing contact block 130 with the object to be measured, ensuring smooth sealing and temperature measurement.

[0050] like Figure 3 As shown, in one embodiment, the drive assembly 150 includes a mounting member 151 and a first elastic member 152. The mounting member 151 is disposed on the frame 110, and the first elastic member 152 is capable of telescopic rebound. One end of the first elastic member 152 is disposed on the mounting member 151, and the other end of the first elastic member 152 pushes the telescopic cylinder 120 to move along the X-axis direction or has a tendency to move along the X-axis.

[0051] For example, the first elastic element 152 includes, but is not limited to, helical springs, wave springs, disc springs, leaf springs, steel leaf springs, rubber springs, air springs, etc.

[0052] like Figure 3 As shown, by way of example, the mounting member 151 is configured as an end cap, the inner circumferential surface of the mounting member 151 is threadedly engaged with the outer wall of the measuring end 121, and the inner end surface of the mounting member 151 abuts against the first elastic member 152.

[0053] The first elastic element 152 is provided so that the telescopic cylinder 120 can adapt to the impact of the rotation of the rotating cylinder 210. The sealing contact block 130 can always fit against the rotating cylinder 210 being tested, and the telescopic cylinder 120 and the rotating cylinder 210 are fitted together through the sealing contact block 130 to avoid wear of the rotating cylinder 210 by the telescopic cylinder 120.

[0054] like Figure 3 As shown, in one embodiment, the telescopic cylinder 120 is configured as a stepped sleeve with a stepped surface 123. The first elastic member 152 pushes the stepped surface 123 of the stepped sleeve, causing the telescopic cylinder 120 to move along the X-axis direction.

[0055] Unlike the above embodiment where the drive assembly 150 includes a mounting member 151 and a first elastic member 152, in another embodiment, the drive assembly 150 includes a telescopic member, which is used to drive the telescopic cylinder 120 to move along the X-axis or has a tendency to move along the X-axis.

[0056] For example, one end of the telescopic member is mounted on the frame 110, and the other end is hinged to the telescopic cylinder 120. When the telescopic member shortens, it causes the telescopic cylinder 120 to move along the positive X-axis direction. When the telescopic member extends, it causes the telescopic cylinder 120 to move along the negative X-axis direction.

[0057] For example, the telescopic component is also electrically connected to a distance sensor, which is used to acquire the distance to the rotating cylinder 210. Based on the distance to the rotating cylinder 210 acquired by the distance sensor, the telescopic component controls the displacement of the telescopic cylinder 120 along the X-axis to ensure the sealing contact block 130 makes sealing contact with the rotating cylinder 210. For example, initially, the distance acquired by the distance sensor is 10mm, and the sealing contact block 130 makes good contact with the rotating cylinder 210. In subsequent production, the distance acquired by the distance sensor increases to 11mm, then the telescopic component shortens by 1mm, causing the telescopic cylinder 120 and the sealing contact block 130 to move by 1mm along the positive X-axis, thereby causing the sealing contact block 130 to re-seal and engage with the rotating cylinder 210. If the distance sensor detects that the distance to the rotary cylinder 210 has decreased to 8mm, the telescopic component extends by 2mm, causing the telescopic cylinder 120 and the sealing contact block 130 to move by 2mm in the opposite direction of the X-axis, thereby causing the sealing contact block 130 to re-seal and engage with the rotary cylinder 210.

[0058] For example, telescopic components include, but are not limited to, hydraulic telescopic mechanisms, pneumatic telescopic mechanisms, electric actuator telescopic mechanisms, threaded screw telescopic mechanisms, or linear motors.

[0059] like Figure 3 As shown, in one embodiment, a purge port 124 is connected to the telescopic cylinder 120.

[0060] External cooling medium and / or pure medium can enter through the purge port 124 to cool and protect the temperature measuring component 140 and / or purge the inside of the telescopic cylinder 120, so that impurities (such as flue gas, dust, etc.) are discharged from the telescopic cylinder 120, thereby forming a pure and uniform medium in the temperature measuring channel in the telescopic cylinder, further reducing interference with temperature measurement and improving temperature measurement accuracy.

[0061] In one embodiment, the telescopic cylinder 120 includes a heat insulation layer, which can isolate the high-temperature environment of the flue gas passage, further optimize the operating environment of the temperature measuring component 140, thereby improving the accuracy and reliability of temperature measurement and extending the service life of the rotating body temperature measuring device, especially the temperature measuring component.

[0062] For example, the insulation layer is disposed on the outer peripheral wall of the telescopic cylinder. However, in another embodiment, the insulation layer is disposed on the inner peripheral wall of the telescopic cylinder.

[0063] For example, the thermal insulation layer is made of at least the following materials: oxide aerogel (such as SiO2, Al2O3, ZrO2, etc.), carbide aerogel (such as SiC, HfC, etc.), multi-component aerogel (such as SiO2 / Al2O3 composite material), nanofiber felt or ceramic material, etc.

[0064] like Figure 3 As shown, in one embodiment, the measuring end 121 is provided with a mounting end cover 125, which is detachably connected to the measuring end 121, and the temperature measuring component 140 is disposed on the mounting end cover 125.

[0065] For example, the inner circumferential surface of the mounting end cap 125 is threaded into the outer circumferential surface of the measuring end 121. In another embodiment, the inner circumferential surface of the mounting end cap 125 is snapped into the outer circumferential surface of the measuring end 121.

[0066] Secondly, embodiments of this application also provide a rotary kiln, including a rotary body temperature measuring device 100 as described in any of the above embodiments.

[0067] like Figure 1 As shown, the rotary kiln also includes an outer cylinder 200, which includes an outer shell 250 and an insulation layer 220. The rotary cylinder 210 is rotatably installed inside the insulation layer 220 and forms a high-temperature flue gas passage with the insulation layer 220. A burner 230 is provided at the head end of the outer cylinder 200, and a flue gas outlet 240 is provided at the tail end.

[0068] Mounting plate 111 is fixedly installed on outer shell 250 by welding, snap-fit ​​or threaded connection. Outer shell 250 and insulation layer 220 are provided with through holes for installing telescopic cylinder 120 into outer cylinder 200.

[0069] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0070] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rotating body temperature measuring device, characterized in that, include: A rack (110) is provided to provide a mounting base; Telescopic cylinder (120) is movably mounted on the frame (110) along the X-axis. Along the X-axis, the two ends of the telescopic cylinder (120) are a measuring end (121) and a contact end (122), respectively. Temperature measuring component (140), the temperature measuring component (140) is disposed on the measuring end (121) and is used to acquire the temperature of the object to be measured; A drive assembly (150) is used to drive the telescopic cylinder (120) to move along the X-axis or to have a tendency to move along the X-axis, so that the contact end (122) of the telescopic cylinder (120) is sealed with the object to be measured to prevent foreign matter from entering the telescopic cylinder (120) from the contact end (122).

2. The rotating body temperature measuring device according to claim 1, characterized in that, It also includes a sealing contact block (130), which is disposed on the contact end (122). The drive assembly (150) is used to drive the telescopic cylinder (120) to move along the X-axis or to have a tendency to move along the X-axis, so that the sealing contact block (130) seals with the object to be measured to prevent foreign matter from entering the telescopic cylinder (120) from the contact end (122).

3. The rotating body temperature measuring device according to claim 2, characterized in that, The sealing contact block (130) is provided with a contact end face (131), and the contact end face (131) is provided as an arc-shaped end face.

4. The rotating body temperature measuring device according to claim 1, characterized in that, The frame (110) includes a mounting plate (111) and a guide sleeve (112), the guide sleeve (112) is disposed on the mounting plate (111), and the telescopic cylinder (120) is slidably installed in the guide sleeve (112).

5. The rotating body temperature measuring device according to claim 4, characterized in that, The drive assembly (150) includes a mounting member (151) and a first elastic member (152). The mounting member (151) is disposed on the frame (110). The first elastic member (152) is capable of telescopic rebound. One end of the first elastic member (152) is disposed on the mounting member (151), and the other end of the first elastic member (152) pushes the telescopic cylinder (120) to move along the X-axis or has a tendency to move along the X-axis.

6. The rotating body temperature measuring device according to claim 5, characterized in that, The telescopic cylinder (120) is configured as a stepped sleeve with a stepped surface (123). The first elastic element (152) pushes against the stepped surface (123) of the stepped sleeve, causing the telescopic cylinder (120) to move along the X-axis or to have a tendency to move along the X-axis.

7. The rotating body temperature measuring device according to claim 1, characterized in that, The drive assembly (150) includes a telescopic member for driving the telescopic cylinder (120) to move along the X-axis or having a tendency to move along the X-axis.

8. The rotating body temperature measuring device according to claim 1, characterized in that, The telescopic cylinder (120) is connected to a purge port (124). And / or, the telescopic cylinder (120) includes a heat insulation layer.

9. The rotating body temperature measuring device according to claim 1, characterized in that, The measuring end (121) is provided with a mounting end cover (125), the mounting end cover (125) is detachably connected to the measuring end (121), and the temperature measuring component (140) is disposed on the mounting end cover (125).

10. A rotary kiln, characterized in that, Includes the rotating body temperature measuring device (100) as described in any one of claims 1 to 9.

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