Lithium ore rotary kiln barrel temperature measuring device

Abstract

The invention discloses a lithium ore rotary kiln barrel temperature measuring device, and relates to the technical field of rotary kiln temperature measurement, the lithium ore rotary kiln barrel temperature measuring device comprises a base, a temperature measuring assembly and a gas mixing assembly, the outer end of the top of the base is provided with a driving assembly, the outer end of the top of the driving assembly is provided with a rotary kiln barrel, and the outer end of the rotary kiln barrel is provided with a driven ring. According to the infrared temperature detector, the surface of the rotary kiln cylinder is continuously scanned through the barrier glass, local temperature abnormity is monitored in real time, the barrier glass can effectively prevent dust attachment and guarantee infrared signal penetrability, and when the temperature abnormity is detected, the electric control push rod drives the attached temperature detector to make contact with the abnormal area of the cylinder, so that the infrared temperature detector is protected. At the moment, the surrounding ring synchronously rotates along with the rotary kiln cylinder, it is ensured that the attaching temperature detector conducts high-precision data acquisition on abnormal points, and through cooperation of rapid wide-area detection of the infrared temperature detector and high-precision fixed-point measurement of the attaching temperature detector, the monitoring range is expanded, and the detection efficiency and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rotary kiln temperature measurement, in particular to a lithium ore rotary kiln cylinder temperature measuring device. Background Art

[0002] In the lithium ore smelting process, the rotary kiln is a key equipment and is widely used in the calcination and pyrolysis treatment of lithium ore. The temperature control of the rotary kiln cylinder plays a vital role in ensuring the quality, efficiency and safety of lithium ore smelting. However, during the operation of the rotary kiln, due to factors such as uneven distribution of lithium ore materials, incomplete combustion or equipment failure, the cylinder surface may experience abnormal temperature increases or decreases. If these temperature anomalies are not discovered and handled in time, they will not only lead to a decline in the quality of lithium ore smelting, but may also cause equipment damage or even safety accidents.

[0003] Traditional methods for measuring the temperature of rotary kiln cylinders rely on manual point measurements using handheld temperature measuring instruments or monitoring using fixed-position temperature sensors. These methods have obvious limitations: manual point measurements are inefficient and difficult to cover the entire cylinder surface, making it easy to miss temperature anomalies; while fixed-position temperature sensors cannot monitor temperature changes on the cylinder surface in real time and are slow to respond to dynamically changing temperature anomalies.

[0004] To overcome the shortcomings of traditional temperature measurement methods and improve the real-time, accurate, and comprehensive nature of rotary kiln shell temperature monitoring, the industry urgently needs a temperature measurement device that can automatically, continuously, and comprehensively monitor changes in the rotary kiln shell's surface temperature. This device should be able to quickly respond to temperature anomalies, collect high-precision data, and adapt to the dynamic operating environment of the rotary kiln, thereby ensuring the safe, efficient, and stable operation of the lithium ore smelting process. Summary of the Invention

[0005] The object of the present invention is to provide a lithium ore rotary kiln cylinder temperature measuring device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lithium ore rotary kiln cylinder temperature measuring device, comprising a base, a temperature measuring component and a gas mixing component, the top outer end of the base is provided with a driving component, and the top outer end of the driving component is provided with a rotary kiln cylinder, the outer end of the rotary kiln cylinder is provided with a driven ring, the top outer end of the base is provided with a positioning component, the outer end of the base is provided with a guide rod, the outer end of the positioning component is provided with a temperature measuring component, the temperature measuring component comprises an enclosing ring, the outer ends of the enclosing ring are provided with sliding grooves, and the inner side of the enclosing ring is provided with a ball bearing, the outer ends of the enclosing ring are provided with an extension seat, and the interior of the enclosing ring is provided with an electric control push rod, and the interior of the electric control push rod is provided with a fitting temperature detector, the interior of the enclosing ring is provided with an infrared thermometer, and the interior of the enclosing ring is provided with a barrier glass, the interior of the enclosing ring is provided with an exhaust groove, and the outer end of the enclosing ring is provided with a gas mixing component.

[0007] Furthermore, the driving assembly drives the rotary kiln cylinder to rotate via the driven ring, and the rotary kiln cylinder and the surrounding ring are concentrically arranged.

[0008] Furthermore, the positioning assembly includes a docking platform, a motor is mounted on the outer end of the docking platform, and the output end of the motor is connected to a screw rod, a displacement seat is provided at the outer end of the screw rod, a U-shaped connecting seat is mounted on the outer end of the displacement seat, and the outer end of the U-shaped connecting seat is connected to a sliding seat.

[0009] Furthermore, the motor drives the screw to rotate, and the rotation of the screw drives the displacement seat to move outward.

[0010] Furthermore, the displacement seat is fixedly connected to the U-shaped connecting seat and the sliding seat, and the sliding seat slides inside the sliding groove.

[0011] Furthermore, the balls are in contact with the rotary kiln cylinder, and the rotary kiln cylinder is not in contact with the extension seat.

[0012] Furthermore, the electric control push rods are distributed in three groups in a ring shape inside the surrounding ring, and the infrared thermometer forms a fully enclosed structure through the surrounding ring and the barrier glass.

[0013] Furthermore, the air mixing assembly includes an air mixing seat, air inlet grooves are provided on both sides of the interior of the air mixing seat, and a filter screen is provided in the middle section of the air inlet grooves, a ventilation chamber is provided inside the air mixing seat, and a return spring is placed inside the ventilation chamber, the outer end of the return spring is connected to a gravity push seat, ventilation grooves are provided at both ends of the bottom of the ventilation chamber, and a one-way air inlet valve is provided at the end of the ventilation groove.

[0014] Furthermore, the return spring is elastically connected to the gravity push seat, and the outer contour of the gravity push seat matches the contour of the ventilation chamber.

[0015] Furthermore, the air inlet groove is connected to the ventilation groove through the ventilation chamber, and the ventilation groove is connected to the exhaust groove through a one-way air inlet valve.

[0016] The present invention provides a lithium ore rotary kiln cylinder temperature measuring device, which has the following beneficial effects: 1. The infrared thermometer of the present invention continuously scans the surface of the rotary kiln cylinder through barrier glass and monitors local temperature anomalies in real time. The barrier glass can effectively prevent dust adhesion and ensure the penetration of infrared signals. When a temperature anomaly is detected, the electronically controlled push rod drives the bonded thermometer to contact the abnormal area of ​​the cylinder. At this time, the surrounding ring rotates synchronously with the rotary kiln cylinder, ensuring that the bonded thermometer performs high-precision data collection on the abnormal point. The rapid wide-area detection of the infrared thermometer and the high-precision fixed-point measurement of the bonded thermometer are coordinated to expand the monitoring range and improve the detection efficiency and accuracy.

[0017] 2. The present invention starts the motor to drive the screw to rotate, which drives the displacement seat to move horizontally along the guide rod. Through the linkage of the U-shaped connecting seat and the sliding seat, the surrounding ring is axially displaced in the slide groove to cover the entire temperature measurement area of ​​the rotary kiln cylinder. By periodically adjusting the position of the surrounding ring, efficient segmented temperature measurement of large cylinders is achieved, solving the problem of overall monitoring difficulties caused by the oversized cylinder.

[0018] 3. In the process of locking the electric control push rod and the rotary kiln cylinder of the present invention, the surrounding ring rotates synchronously with the cylinder. When the mixing seat is inverted due to rotation, the gravity push block squeezes the reset spring to connect the air inlet groove with the ventilation chamber. At this time, the low-temperature air filtered by the filter screen enters the ventilation chamber to prevent external dust from invading the infrared thermometer. When the mixing seat is upright, the gravity push block moves downward to stretch the reset spring, so that the low-temperature gas in the ventilation chamber passes through the ventilation groove and the exhaust groove into the surrounding ring to assist in heat dissipation. At the same time, the gas is discharged from the gap between the extension seat and the cylinder to form a dust-proof air curtain barrier, and the internal dust is brought out synchronously, thereby significantly improving the detection stability of the equipment through the double dustproof and temperature control mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a lithium ore rotary kiln cylinder temperature measuring device of the present invention; Figure 2 This is a schematic diagram of the structure of a temperature measuring component of a lithium ore rotary kiln cylinder temperature measuring device of the present invention; Figure 3 This is a schematic cross-sectional view of a temperature measuring assembly of a lithium ore rotary kiln cylinder temperature measuring device according to the present invention; Figure 4 This is a schematic diagram of the overall cross-sectional structure of a lithium ore rotary kiln cylinder temperature measuring device of the present invention; Figure 5 The present invention is a lithium ore rotary kiln cylinder temperature measuring device Figure 4 A in the middle is an enlarged structural diagram; Figure 6 This is a schematic diagram of the overall longitudinal section structure of a lithium ore rotary kiln cylinder temperature measuring device of the present invention; Figure 7 The present invention is a lithium ore rotary kiln cylinder temperature measuring device Figure 6 Enlarged structural diagram at point B in the middle.

[0020] In the figure: 1. Base; 2. Driving assembly; 3. Rotary kiln cylinder; 4. Driven ring; 5. Positioning assembly; 501. Docking station; 502. Motor; 503. Screw; 504. Displacement seat; 505. U-shaped connecting seat; 506. Sliding seat; 6. Guide rod; 7. Temperature measuring assembly; 701. Enclosing ring; 702. Slide groove; 703. Ball; 704. Extension seat; 705. Electric control push rod; 706. Fitting temperature sensor; 707. Infrared temperature sensor; 708. Barrier glass; 709. Exhaust groove; 8. Gas mixing assembly; 801. Gas mixing seat; 802. Air inlet groove; 803. Filter; 804. Ventilation chamber; 805. Return spring; 806. Gravity push seat; 807. Ventilation groove; 808. One-way air inlet valve. DETAILED DESCRIPTION

[0021] See also Figures 1 to 7 The present invention provides a technical solution: a lithium ore rotary kiln cylinder temperature measuring device, comprising a base 1, a temperature measuring component 7 and a gas mixing component 8, a driving component 2 is provided at the top outer end of the base 1, and a rotary kiln cylinder 3 is arranged at the top outer end of the driving component 2, a driven ring 4 is provided at the outer end of the rotary kiln cylinder 3, a positioning component 5 is arranged at the top outer end of the base 1, a guide rod 6 is arranged at the outer end of the base 1, a temperature measuring component 7 is arranged at the outer end of the positioning component 5, and the temperature measuring component 7 includes an enclosing ring 701, and the outer ends of the enclosing ring 701 are provided. A slide groove 702 is provided, and a ball bearing 703 is placed on the inner side of the surrounding ring 701, extension seats 704 are provided at both ends of the outer side of the surrounding ring 701, and an electric control push rod 705 is placed inside the surrounding ring 701, and a fitting temperature detector 706 is placed inside the electric control push rod 705, an infrared temperature detector 707 is placed inside the surrounding ring 701, and a barrier glass 708 is placed inside the surrounding ring 701, an exhaust groove 709 is provided inside the surrounding ring 701, and a gas mixing component 8 is placed at the outer end of the surrounding ring 701.

[0022] The specific operation is as follows: the base 1 is fixed on the supporting structure of the rotary kiln, ensuring that the driving component 2 and the driven ring 4 are coaxially aligned. After the driving component 2 and the driven ring 4 are coaxially aligned, the rotary kiln cylinder 3 is installed on the top of the driving component 2, and the rotary kiln cylinder 3 and the driven ring 4 are fixed. The driven ring 4 is driven to rotate by the driving component 2, and the rotary drive of the rotary kiln cylinder 3 can be realized. The positioning component 5 is fixed to the base 1 through the docking platform 501 and is embedded in the surrounding ring 701 through the sliding seat 506. The chute 702 is connected with the surrounding ring 701, and the surrounding ring 701 is placed at the outer end of the rotary kiln cylinder 3 and is concentric with it. At this point, the equipment is installed. After the rotary kiln cylinder 3 starts working, it will rotate at the outer end of the surrounding ring 701. The ball 703 rolls in contact with the surface of the rotary kiln cylinder 3 to reduce friction resistance. At the same time, the gap between the surrounding ring 701 and the rotary kiln cylinder 3 is maintained by the extension seat 704 to avoid direct collision. The infrared thermometer 707 works and the infrared thermometer 707 can The surface of the rotary kiln cylinder 3 is continuously scanned through the barrier glass 708 to detect whether there is a local temperature that is too high or too low. The barrier glass 708 can prevent dust from adhering to the surface of the infrared thermometer 707 and ensure the penetration of the infrared signal. If the infrared thermometer 707 detects that there is an abnormal temperature on the rotary kiln cylinder 3, the electric control push rod 705 pushes the thermometer 706 to contact the abnormal temperature surface of the rotary kiln cylinder 3. At this time, the electric control push rod 705 contacts the rotary kiln cylinder 3. The contact is fixed, which enables the surrounding ring 701 to rotate synchronously with the rotary kiln shell 3, which enables the fitted thermometer 706 to collect temperature data of abnormal points in real time. Because the detection accuracy of the fitted thermometer 706 is higher than that of the infrared thermometer 707, but the detection speed and range of the infrared thermometer 707 are wider than those of the fitted thermometer 706, the combined use of the fitted thermometer 706 and the infrared thermometer 707 can greatly improve the detection efficiency and accuracy of the rotary kiln shell 3.

[0023] See also Figures 1 to 7The driving assembly 2 drives the rotary kiln cylinder 3 to rotate through the driven ring 4, and the rotary kiln cylinder 3 and the surrounding ring 701 are concentrically arranged. The positioning assembly 5 includes a docking platform 501, a motor 502 is arranged on the outer end of the docking platform 501, and a screw rod 503 is connected to the output end of the motor 502. A displacement seat 504 is arranged on the outer end of the screw rod 503, and a U-shaped connecting seat 505 is arranged on the outer end of the displacement seat 504. The outer end of the U-shaped connecting seat 505 is connected to the outer end of the U-shaped connecting seat 505. The sliding seat 506 is connected, the motor 502 drives the screw rod 503 to rotate, and the rotation of the screw rod 503 drives the displacement seat 504 to move outward. The displacement seat 504 is fixedly connected to the U-shaped connecting seat 505 and the sliding seat 506, and the sliding seat 506 slides inside the slide groove 702. The ball 703 fits with the rotary kiln cylinder 3, and the rotary kiln cylinder 3 does not fit with the extension seat 704. There are three groups of electric control push rods 705 distributed in an annular shape inside the surrounding ring 701. The infrared thermometer 707 is fully surrounded by the surrounding ring 701 and the barrier glass 708. The gas mixing assembly 8 includes a gas mixing seat 801. The gas mixing seat 801 has gas inlet grooves 802 on both sides thereof, and a filter screen 803 is provided in the middle section of the gas inlet groove 802. The gas mixing seat 801 has a ventilation chamber 804 inside, and a return spring 805 is placed inside the ventilation chamber 804. The outer end of the return spring 805 is connected to a gravity push seat. 806, ventilation grooves 807 are provided at both ends of the bottom of the ventilation chamber 804, and a one-way air inlet valve 808 is provided at the end of the ventilation groove 807. The return spring 805 is elastically connected to the gravity push seat 806, and the outer contour of the gravity push seat 806 matches the contour of the ventilation chamber 804. The air inlet groove 802 is connected to the ventilation groove 807 through the ventilation chamber 804, and the ventilation groove 807 is connected to the exhaust groove 709 through the one-way air inlet valve 808; The specific operation is as follows: after the temperature measurement of the rotary kiln cylinder 3 within the range of the surrounding ring 701 is completed, the electric control push rod 705 retreats to release the lock between the surrounding ring 701 and the rotary kiln cylinder 3, and the screw rod 503 is driven to rotate by the starting motor 502, which can drive the displacement seat 504 to move horizontally along the direction of the guide rod 6. Because the displacement seat 504 is connected with the sliding groove 702 of the surrounding ring 701 through the U-shaped connecting seat 505 and the sliding seat 506, the surrounding ring 701 can move in the axial position. The displacement range covers the area of ​​the rotary kiln cylinder 3 that needs to be temperature measured, which enables the equipment to periodically measure the temperature of the entire rotary kiln cylinder 3. By adopting the above method, the disadvantage of being unable to measure the temperature of the entire rotary kiln cylinder 3 due to the rotary kiln cylinder 3 being too large can be avoided. When the electric control push rod 705 is locked with the rotary kiln cylinder 3, the surrounding ring 701 will rotate synchronously with the rotary kiln cylinder 3. When the surrounding ring 701 rotates to invert the gas mixing seat 801, the gravity push block 806 will squeeze the reset spring 805, which makes the air inlet groove 802 close to the ventilation The air inlet groove 802 is connected to the chamber 804. At this time, the low-temperature air from the outside can enter the ventilation chamber 804 through the air inlet groove 802. A filter 803 is placed in the middle of the air inlet groove 802. The filter 803 can isolate the external dust, which can prevent the external dust from entering the surrounding ring 701 and affecting the normal temperature measurement of the infrared thermometer 707. When the mixing seat 801 rotates to the upright position, the gravity push block 806 will move down with gravity and stretch the reset spring 805, which allows the low-temperature gas inhaled from the ventilation chamber 804 to pass through the ventilation groove 807. , the exhaust groove 709 enters the interior of the surrounding ring 701, which can prevent the temperature inside the surrounding ring 701 from being too high and affecting the normal operation of its internal components. The gas entering the surrounding ring 701 will be evenly discharged from the gap between the extension seat 704 and the rotary kiln cylinder 3, and form an air curtain barrier, which can prevent external dust from invading the temperature measurement area and assist in heat dissipation. In addition, if there is dust inside the surrounding ring 701, it can also be discharged together with the gas. Through the above operations, the detection stability of the equipment can be greatly improved.

[0024] In summary, when using the lithium ore rotary kiln cylinder temperature measuring device, first the base 1 is fixed on the supporting structure of the rotary kiln to ensure that the driving assembly 2 and the driven ring 4 are coaxially aligned. After the driving assembly 2 and the driven ring 4 are coaxially aligned, the rotary kiln cylinder 3 is installed on the top of the driving assembly 2, and the rotary kiln cylinder 3 and the driven ring 4 are fixed. The driven ring 4 is driven to rotate by the driving assembly 2, and the rotary drive of the rotary kiln cylinder 3 can be realized. The positioning assembly 5 is fixed to the base 1 through the docking platform 501, and is embedded in the slide groove 702 of the surrounding ring 701 through the sliding seat 506 to achieve connection with the surrounding ring 701. The surrounding ring 701 is placed on the outer end of the rotary kiln cylinder 3 and is concentric with it. At this point, the equipment is installed. Then, after the rotary kiln cylinder 3 starts working, it will rotate at the outer end of the surrounding ring 701, and the ball 703 will roll in contact with the surface of the rotary kiln cylinder 3 to reduce friction resistance. At the same time, the gap between the surrounding ring 701 and the rotary kiln cylinder 3 is maintained by the extension seat 704 to avoid direct collision. The infrared thermometer 707 works and can continuously scan the surface of the rotary kiln cylinder 3 through the barrier glass 708 to detect whether there is a local temperature that is too high or too low. The barrier glass 708 can prevent dust from adhering to the surface of the infrared thermometer 707 to ensure the penetration of the infrared signal. If the infrared thermometer 707 detects that the rotary kiln cylinder 3 has an abnormal temperature When the temperature of the rotary kiln cylinder 3 is abnormal, the electric push rod 705 pushes the fitted thermometer 706 to contact the abnormal temperature surface of the rotary kiln cylinder 3. At this time, the electric push rod 705 is in contact and fixed with the rotary kiln cylinder 3, which enables the surrounding ring 701 to rotate synchronously with the rotary kiln cylinder 3, so that the fitted thermometer 706 can collect temperature data of the abnormal point in real time. Because the detection accuracy of the fitted thermometer 706 is higher than that of the infrared thermometer 707, but the detection speed and range of the infrared thermometer 707 are wider than those of the fitted thermometer 706, the combined use of the fitted thermometer 706 and the infrared thermometer 707 can greatly improve the detection efficiency and accuracy of the rotary kiln cylinder 3. Then, after completing the temperature measurement of the rotary kiln cylinder 3 within the range of the enclosing ring 701, the electric control push rod 705 retracts to release the lock between the enclosing ring 701 and the rotary kiln cylinder 3. By starting the motor 502 to drive the screw rod 503 to rotate, the displacement seat 504 can be driven to move laterally along the direction of the guide rod 6. Since the displacement seat 504 is connected with the slide groove 702 of the enclosing ring 701 through the U-shaped connecting seat 505 and the sliding seat 506, the enclosing ring 701 can move its axial position. The displacement range of the enclosing ring 701 covers the area of ​​the rotary kiln cylinder 3 that needs to be temperature measured, which enables the equipment to periodically measure the temperature of the entire rotary kiln cylinder 3. By adopting the above method, the disadvantage of being unable to measure the temperature of the entire rotary kiln cylinder 3 due to the excessive size of the rotary kiln cylinder 3 can be avoided. Finally, in the process of locking the electric control push rod 705 with the rotary kiln cylinder 3, the surrounding ring 701 will rotate synchronously with the rotary kiln cylinder 3. When the surrounding ring 701 rotates to make the mixing seat 801 inverted, the gravity push block 806 will squeeze the return spring 805, which makes the air inlet groove 802 communicate with the ventilation chamber 804. At this time, the low-temperature air from the outside can enter the ventilation chamber 804 through the air inlet groove 802. A filter 803 is placed at the middle end of the air inlet groove 802. The filter 803 can isolate external dust, which can prevent external dust from entering the surrounding ring 701 and affecting the normal temperature measurement of the infrared thermometer 707. When the mixing seat 801 rotates to the upright position, the gravity push block 806 will squeeze the return spring 805. The push block 806 will move downward with gravity and stretch the reset spring 805, which allows the low-temperature gas sucked into the ventilation chamber 804 to enter the interior of the surrounding ring 701 through the ventilation groove 807 and the exhaust groove 709. This can prevent the temperature inside the surrounding ring 701 from being too high and affecting the normal operation of its internal components. The gas entering the surrounding ring 701 will be evenly discharged from the gap between the extension seat 704 and the rotary kiln cylinder 3, and form an air curtain barrier, which can prevent external dust from invading the temperature measurement area and assist in heat dissipation. In addition, if there is dust inside the surrounding ring 701, it can also be discharged along with the gas. Through the above operations, the detection stability of the equipment can be greatly improved.

[0025] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0026] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A lithium ore rotary kiln cylinder temperature measuring device, characterized in that: The invention comprises a base (1), a temperature measuring component (7) and a gas mixing component (8), wherein a driving component (2) is arranged at the top outer end of the base (1), and a rotary kiln cylinder (3) is arranged at the top outer end of the driving component (2), and a driven ring (4) is arranged at the outer end of the rotary kiln cylinder (3), and a positioning component (5) is arranged at the top outer end of the base (1), a guide rod (6) is arranged at the outer end of the base (1), and a temperature measuring component (7) is arranged at the outer end of the positioning component (5), and the temperature measuring component (7) comprises an enclosing ring (701), and two outer ends of the enclosing ring (701) are provided with slide grooves (702) ), and a ball bearing (703) is arranged on the inner side of the surrounding ring (701), extension seats (704) are arranged at both ends of the outer side of the surrounding ring (701), and an electric control push rod (705) is arranged inside the surrounding ring (701), and a fitting temperature measuring device (706) is arranged inside the electric control push rod (705), an infrared temperature measuring device (707) is arranged inside the surrounding ring (701), and a barrier glass (708) is arranged inside the surrounding ring (701), an exhaust groove (709) is opened inside the surrounding ring (701), and a gas mixing component (8) is arranged at the outer end of the surrounding ring (701).

2. The lithium ore rotary kiln cylinder temperature measuring device according to claim 1, characterized in that: The driving assembly (2) drives the rotary kiln barrel (3) to rotate via the driven ring (4), and the rotary kiln barrel (3) and the surrounding ring (701) are arranged concentrically.

3. The lithium ore rotary kiln cylinder temperature measuring device according to claim 1, characterized in that: The positioning assembly (5) comprises a docking platform (501), a motor (502) being arranged at the outer end of the docking platform (501), and a lead screw (503) being connected to the output end of the motor (502), a displacement seat (504) being arranged at the outer end of the lead screw (503), a U-shaped connecting seat (505) being arranged at the outer end of the displacement seat (504), and a sliding seat (506) being connected to the outer end of the U-shaped connecting seat (505).

4. The lithium ore rotary kiln cylinder temperature measuring device according to claim 3, characterized in that: The motor (502) drives the screw rod (503) to rotate, and the rotation of the screw rod (503) drives the displacement seat (504) to move outward.

5. The lithium ore rotary kiln cylinder temperature measuring device according to claim 3, characterized in that: The displacement seat (504) is fixedly connected to the U-shaped connection seat (505) and the sliding seat (506), and the sliding seat (506) slides inside the sliding groove (702).

6. The lithium ore rotary kiln cylinder temperature measuring device according to claim 1, characterized in that: The ball bearing (703) fits the rotary kiln barrel (3), while the rotary kiln barrel (3) does not fit the extension seat (704).

7. The lithium ore rotary kiln cylinder temperature measuring device according to claim 1, characterized in that: The electric control push rods (705) are distributed in three groups in a ring shape inside the surrounding ring (701), and the infrared temperature detector (707) forms a fully surrounded structure through the surrounding ring (701) and the barrier glass (708).

8. The lithium ore rotary kiln cylinder temperature measuring device according to claim 1, characterized in that: The gas mixing assembly (8) comprises a gas mixing seat (801), gas inlet grooves (802) are provided on both sides of the gas mixing seat (801), and a filter screen (803) is provided in the middle section of the gas inlet groove (802), a ventilation chamber (804) is provided in the gas mixing seat (801), and a return spring (805) is arranged in the ventilation chamber (804), the outer end of the return spring (805) is connected to a gravity push seat (806), and ventilation grooves (807) are provided at both ends of the bottom of the ventilation chamber (804), and a one-way air inlet valve (808) is provided at the end of the ventilation groove (807).

9. The lithium ore rotary kiln cylinder temperature measuring device according to claim 8, characterized in that: The return spring (805) is elastically connected to the gravity push seat (806), and the outer contour of the gravity push seat (806) matches the contour of the ventilation chamber (804).

10. The lithium ore rotary kiln cylinder temperature measuring device according to claim 8, characterized in that: The air inlet groove (802) is connected to the ventilation groove (807) through the ventilation chamber (804), and the ventilation groove (807) is connected to the exhaust groove (709) through the one-way air inlet valve (808).

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