Bearing heater for rotary kiln

Abstract

The utility model relates to a bearing heating technology for a rotary kiln, and discloses a bearing heater for a rotary kiln, which comprises a heater and a cover, and the heater comprises a heating cavity and an electromagnetic induction heating device; an oil inlet pipe is arranged on the heater, an induction coil of the electromagnetic induction heating device is arranged outside the heating cavity, a transformer is located on one side of the heater and connected with the induction coil, a temperature sensor and a microcontroller are arranged on the heater, the temperature sensor is located on the inner wall of the heating cavity, and a control panel is installed on the heater. The microcontroller is located in the control panel, a monitoring device is arranged in the control panel, an alarm is arranged on the top of the heater and electrically connected with the microcontroller, an automatic power-off device is installed on the heater and electrically connected with the microcontroller, a filter is installed on the heater and connected with an oil outlet pipe, and an oil pump is arranged on the oil outlet pipe. The oil pump is connected with an oil inlet pipe through a circulating oil pipe, and an automatic lifting device is installed at the bottom of the heating cavity and provided with a protective fence.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing heating technical field more specifically, especially, relate to a bearing heater for rotary kiln. BACKGROUND

[0002] In the daily bearing maintenance work, in order to meet the installation requirement of bearing, usually need to place bearing in clean lubricating oil and heat. The traditional heating mode adopts wood and other fuels to heat lubricating oil, and this mode has many disadvantages. First, temperature control is difficult, and temperature is prone to be too high or too low, which affects the heating effect and service life of bearing. Second, the lubricating oil is unevenly heated in the heating process, which may cause local overheating of bearing and damage the bearing structure. In addition, a dedicated person needs to be arranged to monitor the whole heating process, which consumes a lot of manpower, and the monitoring personnel may cause heating failure due to negligence. Finally, using wood and other fuels to heat not only has low efficiency, but also causes a large amount of waste of lubricating oil and increases the maintenance cost. CONTENT OF THE UTILITY MODEL

[0003] The application provides a bearing heater for rotary kiln, which solves the problems of the traditional heater, such as difficult temperature control, prone to too high or too low temperature, uneven heating of lubricating oil in the heating process, possible local overheating of bearing, damage to bearing structure, and the need to arrange a dedicated person to monitor the whole heating process.

[0004] The application provides a bearing heater for rotary kiln, which includes a heater and a cover. The heater includes a heating cavity and an electromagnetic induction heating device. The heating cavity is arranged in the heater, and an oil inlet pipe is arranged on the heater. The electromagnetic induction heating device includes an induction coil and a transformer. The induction coil is arranged outside the heating cavity, and the transformer is arranged on one side of the heater and connected with the induction coil. An intelligent temperature control system is arranged on the heater. The intelligent temperature control system includes a temperature sensor and a microcontroller. The temperature sensor is arranged on the inner wall of the heating cavity. A control panel is arranged on the heater, and the microcontroller is arranged in the control panel. A monitoring device is arranged in the control panel. An alarm is arranged on the top of the heater and electrically connected with the microcontroller. An automatic power-off device is arranged on the heater and electrically connected with the microcontroller. A filter is arranged at the oil outlet of the heater. The filter is connected with an oil outlet pipe. An oil pump is arranged on the oil outlet pipe. The oil pump is connected with the oil inlet pipe through a circulating oil pipe. An automatic lifting device is arranged at the bottom of the heating cavity, and a protective fence is arranged on the automatic lifting device.

[0005] Preferably, the heating cavity is made of insulating and high-temperature-resistant material.

[0006] Preferably, the induction coil is wound by high-strength copper wire.

[0007] Preferably, the automatic lifting device comprises a lifting platform and an electric lifting rod.

[0008] Preferably, a protective fence is installed around the lifting platform.

[0009] Preferably, the alarm is an audible and visual alarm.

[0010] Preferably, a waste residue treatment opening is installed on the filter.

[0011] From the above technical solutions, it can be seen that the bearing heater for a rotary kiln provided by the application can put the bearing to be repaired into the lubricating oil in the heating cavity during the heating process, start the heater, and the electromagnetic induction heating device starts to heat the lubricating oil, the temperature sensor monitors the temperature in real time and transmits the temperature data to the microcontroller, the microcontroller automatically adjusts the heating power to ensure that the temperature of the lubricating oil is uniform and stable within the preset range, the monitoring device and the alarm monitor the working state of the heater throughout the process, and once an abnormality occurs, the power is automatically cut off and an alarm is given, the filter and the oil pump can realize recycling of the lubricating oil, the lubricating oil is continuously filtered and circulated, the utilization rate of the lubricating oil is improved, waste is reduced, after heating is completed, the automatic lifting device lifts the bearing to a suitable position, and the maintenance personnel can safely take out the bearing.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] 1. The electromagnetic induction heating device of the application can uniformly heat the lubricating oil and the bearing, effectively avoid local overheating, significantly improve the heating quality of the bearing, and ensure the reliability and stability of the bearing in the subsequent installation process.

[0014] 2. The application sets the monitoring device and the alarm to monitor the working state in real time, automatically cut off the power and give an alarm when an abnormality occurs, and does not need a dedicated person to monitor throughout the process, thereby reducing labor costs and operation risks and improving work efficiency.

[0015] 3. The application sets the monitoring device and the alarm to monitor the working state in real time, automatically cut off the power and give an alarm when an abnormality occurs, and does not need a dedicated person to monitor throughout the process, thereby reducing labor costs and operation risks and improving work efficiency.

[0016] 4. The application sets the automatic lifting device and the protective fence to facilitate the maintenance personnel to safely take out the heated bearing, improve operation convenience and safety, and reduce the occurrence of accidents such as scalding.

[0017] 5. Compared with traditional wood heating, the electromagnetic induction heating is more efficient, and there is no open flame, which reduces energy waste and safety hazards and meets the development trend of modern industrial energy saving and environmental protection.

[0018] In summary, the electromagnetic induction heating device of the bearing heater for a rotary kiln uniformly heats the lubricating oil and the bearing, effectively avoids local overheating, significantly improves the bearing heating quality, ensures the reliability and stability of the bearing in the subsequent installation process, sets the control device and the alarm to monitor the working state in real time, automatically cuts off the power and alarms when abnormal, does not need special personnel to monitor the whole process, reduces the labor cost and operation risk, improves the work efficiency, and sets the control device and the alarm to monitor the working state in real time, automatically cuts off the power and alarms when abnormal, does not need special personnel to monitor the whole process, reduces the labor cost and operation risk, improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical scheme in the utility model better understood by the personnel in the technical field, the following will make a brief introduction to the drawings needed to be used in the embodiment, and obviously, the other drawings can be obtained according to these drawings without the creation of the premise for the ordinary personnel in the field.

[0020] Fig. 1 A structure diagram of the bearing heater for a rotary kiln provided by the utility model is shown in the figure.

[0021] Fig. 2 A part structure diagram of the bearing heater for a rotary kiln provided by the utility model is shown in the figure.

[0022] The reference numerals in the specific embodiment are as follows:

[0023] 1, heater; 2, heating cavity; 3, induction coil; 4, transformer; 5, temperature sensor; 6, control panel; 7, microcontroller; 8, monitoring device; 9, alarm; 10, automatic power-off device; 11, oil inlet pipe; 12, cover; 13, filter; 14, oil outlet pipe; 15, oil pump; 16, circulating oil pipe; 17, automatic lifting device; 18, lifting platform; 19, electric lifting rod; 20, guardrail; 21, waste residue treatment opening. Specific embodiment

[0024] In order to make the technical scheme in the utility model better understood by the personnel in the technical field, the following will make a brief introduction to the drawings needed to be used in the embodiment, and obviously, the other drawings can be obtained according to these drawings without the creation of the premise for the ordinary personnel in the field.

[0025] Reference Figs. 1-2The application discloses a rotary kiln bearing heater, in order to solve the problems of traditional heater, such as difficult temperature control, easy to appear high or low temperature, uneven heating of lubricating oil during heating, possible local overheating of bearing, damage to bearing structure, and need to arrange special person to monitor the whole heating process, etc., the electromagnetic induction heating device makes the lubricating oil and the bearing uniformly heated, effectively avoids local overheating, significantly improves the bearing heating quality, ensures the reliability and stability of the bearing in the subsequent installation process, sets the control device and the alarm to monitor the working state in real time, automatically cuts off the power and alarms when abnormal, without special person to monitor the whole process, reduces the labor cost and operation risk, improves the work efficiency, and sets the control device and the alarm to monitor the working state in real time, automatically cuts off the power and alarms when abnormal, without special person to monitor the whole process, reduces the labor cost and operation risk, improves the work efficiency.

[0026] Specifically, a rotary kiln bearing heater comprises a heater 1 and a cover 12, the heater 1 comprises a heating cavity 2 and an electromagnetic induction heating device; the heater 1 is provided with the heating cavity 2, the heating cavity 2 is made of insulating and high-temperature-resistant material, has good sealing performance, prevents lubricating oil leakage, is used for accommodating bearings and lubricating oil, the heater 1 is provided with an oil inlet pipe 11, the electromagnetic induction heating device comprises an induction coil 3 and a transformer 4, the induction coil 3 is arranged outside the heating cavity 2, the induction coil 3 is wound by high-strength copper wire, the transformer 4 is located on one side of the heater 1 and connected with the induction coil 3, the transformer 4 converts input alternating current into high-frequency current suitable for electromagnetic induction heating, converts electric energy into heat energy, and is used for heating lubricating oil; the heater 1 is provided with an intelligent temperature control system, the intelligent temperature control system comprises a temperature sensor 5 and a microcontroller 7, the microcontroller 7 adopts a PID control algorithm, and temperature is controlled within a preset range; the temperature sensor 5 is located on the inner wall of the heating cavity 2, the heater 1 is provided with a control panel 6, the microcontroller 7 is located in the control panel 6, the temperature sensor 5 is a high-precision thermistor temperature sensor, is installed on the inner wall of the heating cavity 2, and is deeply immersed in lubricating oil, used for monitoring the temperature of lubricating oil in real time and transmitting the temperature signal to the microcontroller 7; the microcontroller 7 automatically adjusts the power of the electromagnetic induction heating device according to a preset heating temperature range; the control panel 6 is provided with a monitoring device 8, the monitoring device 8 comprises monitoring modules of current, voltage, power and the like, and is used for monitoring the working state of the heater 1 in real time; the heater 1 is provided with an alarm 9 at the top, the alarm 9 is an audible and visual alarm, the alarm 9 is electrically connected with the microcontroller 7, and the alarm 9 emits an audible and visual alarm signal when monitoring abnormal conditions such as temperature exceeding the standard, heating time being too long, and current overload; the heater 1 is provided with an automatic power-off device 10, the automatic power-off device 10 is electrically connected with the microcontroller 7, the heater 1 is provided with a filter 13 at an oil outlet, the filter 13 is provided with a waste residue treatment opening 21, used for treating filtered waste residues, the filter 13 is connected with an oil outlet pipe 14, the oil outlet pipe 14 is provided with an oil pump 15, the oil pump 15 is connected with the oil inlet pipe 11 through a circulating oil pipe 16, impurities and oxides in lubricating oil are removed through the filter 13, then the purified lubricating oil is re-input into the heating cavity 2 through the circulating oil pipe 16 and the oil inlet pipe 11 by the oil pump 15, realizing the recycling of lubricating oil and greatly reducing the waste of lubricating oil; the heater 2 is provided with an automatic lifting device 17 at the bottom, the automatic lifting device 17 is provided with a protective fence 20, the automatic lifting device 17 comprises a lifting platform 18 and an electric lifting rod 19, the lifting platform 18 is provided with the protective fence 20 around, and the automatic lifting device 17 is used for lifting the heated bearings to a position convenient for taking out, and the protective fence 20 is used for preventing the operator from being scalded when taking out the bearings.

[0027] As can be seen from the above technical solution, when a rotary kiln bearing heater is in use, during the heating process, the bearing to be repaired is placed in the lubricating oil in the heating chamber 2, the heater 1 is started, and the electromagnetic induction heating device begins to heat the lubricating oil. The temperature sensor 5 monitors the temperature in real time and transmits the temperature data to the microcontroller 7. The microcontroller 7 automatically adjusts the heating power to ensure that the lubricating oil temperature is uniform and stable within the preset range. The monitoring device 8 and the alarm 9 monitor the working status of the heater 1 throughout the process. Once an abnormality occurs, the power is automatically cut off and an alarm is triggered. The filter 13 and the oil pump 15 can realize the recycling of lubricating oil, continuously filtering and circulating the lubricating oil, improving the utilization rate of lubricating oil and reducing waste. After heating is completed, the automatic lifting device 17 lifts the bearing to a suitable position for easy and safe removal by maintenance personnel.

[0028] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the applications disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0029] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A bearing heater for a rotary kiln, characterized in that: Includes a heater (1) and a cover (12). The heater (1) includes a heating chamber (2) and an electromagnetic induction heating device. The heater (1) contains the heating chamber (2). The heater (1) is equipped with an oil inlet pipe (11). The electromagnetic induction heating device includes an induction coil (3) and a transformer (4). The induction coil (3) is located outside the heating chamber (2). The transformer (4) is located on one side of the heater (1) and connected to the induction coil (3). The heater (1) is equipped with an intelligent temperature control system. The intelligent temperature control system includes a temperature sensor (5) and a microcontroller (7). The temperature sensor (5) is located on the inner wall of the heating chamber (2). The heater (1) is equipped with a control panel (6). The microcontroller (7) is... The heater (1) is located inside the control panel (6), which is equipped with a monitoring device (8). The heater (1) is equipped with an alarm (9) on top, which is electrically connected to the microcontroller (7). The heater (1) is equipped with an automatic power-off device (10), which is electrically connected to the microcontroller (7). The heater (1) is equipped with a filter (13) at the oil outlet, which is connected to an oil outlet pipe (14). The oil outlet pipe (14) is equipped with an oil pump (15), which is connected to the oil inlet pipe (11) through a circulating oil pipe (16). The heating chamber (2) is equipped with an automatic lifting device (17) at the bottom, which is equipped with a guardrail (20).

2. A bearing heater for a rotary kiln according to claim 1, characterized in that: The heating cavity (2) is made of insulating and high-temperature resistant materials.

3. A bearing heater for a rotary kiln according to claim 1, characterized in that: The induction coil (3) is wound with high-strength copper wire.

4. A bearing heater for a rotary kiln according to claim 1, characterized in that: The automatic lifting device (17) includes a lifting platform (18) and an electric lifting rod (19).

5. A bearing heater for a rotary kiln according to claim 4, characterized in that: The lifting platform (18) is surrounded by guardrails (20).

6. A bearing heater for a rotary kiln according to claim 1, characterized in that: The alarm (9) is an audible and visual alarm.

7. A bearing heater for a rotary kiln according to claim 1, characterized in that: The filter (13) is equipped with a waste residue treatment port (21).

Images