CN211755925U - Dynamic ore feeding amount adjusting device of ball mill - Google Patents
Dynamic ore feeding amount adjusting device of ball mill Download PDFInfo
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- CN211755925U CN211755925U CN201922063790.9U CN201922063790U CN211755925U CN 211755925 U CN211755925 U CN 211755925U CN 201922063790 U CN201922063790 U CN 201922063790U CN 211755925 U CN211755925 U CN 211755925U
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Abstract
The utility model relates to a give ore deposit volume dynamic adjustment control technical field, in particular to ball mill gives ore deposit volume dynamic adjustment device. The automatic ore feeding device comprises an MCU controller, a signal detection transmission unit for detecting the operating parameters of the ball mill, an ore feeding amount detection unit for detecting the instantaneous ore amount of an ore feeding belt, and an ore machine frequency converter for adjusting the instantaneous ore amount of the ore feeding belt, wherein a data processing module for calculating the most appropriate ore amount required by the ball mill and comparing the most appropriate ore amount with the instantaneous ore amount of the ore feeding belt is arranged in the MCU controller. The utility model discloses can calculate the best ore feeding volume of current condition according to ball mill current running state automatic to the ore feeding volume of real-time detection ore feeding belt, and then the ore feeding volume of dynamic adjustment ore feeding belt need not to carry out artificial intervention, also can make the required ore feeding volume of ball mill automatic stabilization all the time within the scope that technology needs.
Description
Technical Field
The utility model relates to a give ore deposit volume dynamic adjustment control technical field, in particular to ball mill gives ore deposit volume dynamic adjustment device.
Background
For a long time, enterprises such as various ceramics, building materials, metallurgy, mines, chemical engineering and the like generally adopt ball mills to grind raw materials such as ceramics, ores and the like, and the traditional earth mill generally adopts a simple power frequency control mode, namely, the ball mill runs at a fixed rotating speed after being started. The rotation speed of the ball mill directly influences the motion conditions of the grinding balls and the materials and the grinding process of the materials, and under different rotation speeds, the motion conditions of the grinding balls and the materials in the cylinder body are different: firstly, when the rotating speed of a ball mill cylinder is low, grinding balls and materials rise along the inner wall of the cylinder, when the inclination angle of the grinding balls and the materials is equal to or larger than a natural inclination angle, the grinding balls slide down along an inclined plane, so that sufficient fall cannot be formed, the grinding effect of the grinding balls on the materials is small, and the efficiency of the ball mill is low; secondly, if the rotating speed of the ball mill cylinder is very high, the material and the grinding balls can not separate from the cylinder wall due to the action of centrifugal force and rotate along with the cylinder wall, and at the moment, the grinding balls have no impact on the material, so that the grinding efficiency is lower. The lowest rotation speed in this state is called a critical rotation speed; when the rotating speed of the ball mill barrel is in a certain rotating speed between the ball mill barrel and the grinding wheel, the grinding balls are brought to a certain height and fall down along a parabola, the impact on the barrel bottom materials is maximum, the grinding efficiency is highest, and the rotating speed at the moment is called as the optimal working rotating speed. Practical experience shows that the material fineness is reduced along with the proceeding of the ball milling process, the optimal rotating speed of the cylinder body is continuously reduced, and the optimal speed control can be realized through the frequency conversion speed regulation control, so that the optimal energy-saving effect is realized.
At present, most of ore feeding of the existing ball mill is achieved by manually adjusting the running frequency of an ore feeder by an operator according to the field state of the ball mill. Therefore, the traditional non-automatic speed regulation type ball mill has the operation mode that excessive grinding of materials is easily caused, the required grinding period is long, the grinding efficiency is low, the power consumption of a unit product is high, meanwhile, the starting current and the operating current of equipment are high, the impact on the equipment and a power grid is high, the maintenance amount of the equipment is also high, the electric loss is quite remarkable, unnecessary troubles and serious energy waste are inevitably brought to manufacturers, and the defects of the non-speed regulation power frequency control ball mill are exposed along with the development of social economy and the expansion of the production scale of enterprises, and the rapid development of related enterprises is seriously hindered.
CN 207174772U discloses a ball mill is invariable to give ore deposit controlling means, includes: the system comprises a weighing sensor signal detection and digital transmission unit, a belt running speed detection unit, a PLC (programmable logic controller) and an intelligent PID (proportion integration differentiation) control instrument; the weighing sensor signal detection and digital transmission unit comprises a weighing sensor and a weighing and force measuring transmitter, the weighing sensor is arranged on the belt scale and connected with the weighing and force measuring transmitter, and the weighing and force measuring transmitter is connected to the PLC; a speed sensor is arranged in the belt running speed detection unit and is connected to the PLC; the PLC is connected with the intelligent PID control instrument; the intelligent PID control instrument is connected to an external feeding system.
The PLC controller with reliable performance and strong anti-interference capability is adopted, the large-size color liquid crystal touch screen is adopted as an operation interface, the display content is rich, and the operation is simple and convenient; weighing data is transmitted to the PLC in a digital communication mode, the anti-interference capacity of detection signals is greatly improved, and particularly, the advantages are more obvious in the situation that speed is regulated by a frequency converter.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a can be according to the best ore feeding volume of ball mill current running state automatic computation current conditions to the ore feeding volume of real-time detection feeding belt, and then the ball mill of the ore feeding volume dynamic adjustment of dynamic adjustment feeding belt gives ore belt.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the utility model provides a ball mill gives ore deposit volume dynamic adjustment device, includes the MCU controller for carry out the signal detection transmission unit that detects to the operating parameter of ball mill, be used for carrying out the ore deposit volume detecting element that detects to the instantaneous ore deposit volume of giving the ore deposit belt, be used for carrying out the ore deposit converter that adjusts to the instantaneous ore deposit volume of giving the ore deposit belt, be equipped with in the MCU controller and be used for calculating the required most suitable ore deposit volume of ball mill and carry out the data processing module who compares with the instantaneous ore deposit volume of giving the ore deposit belt, signal detection transmission unit and ore deposit volume detecting element will detect the data transmission after to the MCU controller, data processing module in the MCU controller calculates the comparison back to data, will change the adjustment signal transmission of instantaneous ore deposit volume to ore deposit converter.
Furthermore, the data processing module determines the current grindable ore amount range of the ball mill through a parameter automatic identification algorithm, calculates the current required ore feeding amount through a dynamic control algorithm, and compares the current required ore feeding amount with the instantaneous ore feeding amount of the ore feeding belt.
Furthermore, the signal detection transmission unit comprises an audio signal detection unit for detecting the running audio of the ball mill and transmitting the audio signal to the MCU controller, and a power signal detection unit for detecting the running power of the ball mill and transmitting the power signal to the MCU controller.
Furthermore, a double-microphone noise reduction pickup for collecting audio signals and a ground audio spectrum analyzer for receiving the audio signals of the double-microphone noise reduction pickup and analyzing are arranged in the audio signal detection unit, and a power transmitter is arranged in the power signal detection unit.
Further, the ore feeding amount detection unit comprises a weighing sensor arranged on the ore feeding belt, and a weighing force-measuring transmitter which is used for receiving a weight signal detected by the weighing sensor, converting the weight signal into a digital signal and transmitting the digital signal to the MCU controller.
And further, the system also comprises a human-computer interface which can display the data of ore feeding cumulant, instantaneous ore feeding quantity, power and audio, and the human-computer interface is connected with the MCU controller.
Furthermore, the human-computer interface is a liquid crystal display screen.
Furthermore, signal transmission is carried out between the signal detection transmission unit and the MCU controller through a shielded cable.
The utility model discloses ball mill ore feeding volume dynamic adjustment device's beneficial effect is:
the signal detection transmission unit transmits signals to the controller through the shielding cable, so that the reliability of the detection signals and the anti-interference capability in severe environment are greatly improved. The double-microphone noise reduction pickup solves the problem that the field environment noise interferes the grinding sound spectrum analysis of the ball mill in the prior art, and the parameter automatic identification algorithm solves the problem that the field needs professional technical personnel to debug. The dynamic control algorithm has an automatic optimization searching function, and the technical problem of dynamic control of the ore feeding amount of the ball mill is practically solved. The MCU controller has low power consumption, reliable performance and strong anti-interference capability. The utility model discloses can calculate the best ore feeding volume of current condition according to ball mill current running state automatic to the ore feeding volume of real-time detection ore feeding belt, and then the ore feeding volume of dynamic adjustment ore feeding belt need not to carry out artificial intervention, also can make the required ore feeding volume of ball mill automatic stabilization all the time within the scope that technology needs.
Drawings
FIG. 1 is a schematic structural view of the dynamic ore feeding amount adjusting device of the ball mill of the present invention;
FIG. 2 is a core control circuit diagram of the present invention;
FIG. 3 is a circuit diagram of the output control circuit of the present invention;
fig. 4 is the structure diagram of the dynamic control algorithm of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments;
as shown in fig. 1-4, a dynamic ore feeding amount adjusting device for a ball mill comprises an MCU controller, a signal detection transmission unit 100 for detecting an operation parameter of the ball mill, a feeding amount detection unit 200 for detecting an instantaneous amount of ore of a feeding belt of an ore feeder, the mine machine frequency converter is used for adjusting the instantaneous ore quantity of the ore feeding belt, and further comprises a human-computer interface which can display the data of ore feeding cumulant, the instantaneous ore feeding quantity, power and audio frequency, a data processing module which is used for calculating the most appropriate ore feeding quantity required by the ball mill and comparing the most appropriate ore feeding quantity with the instantaneous ore feeding quantity of the ore feeding belt is arranged in the MCU controller, the signal detection transmission unit 100 and the ore feeding quantity detection unit 200 send the detected data to the MCU controller, and after the data processing module in the MCU controller calculates and compares the data, the adjusting signal for changing the instantaneous ore feeding quantity is sent to the mine machine frequency converter.
The signal detection and transmission unit 100 includes an audio signal detection unit 101 for detecting the operation audio of the ball mill and transmitting the detected audio to the MCU controller, and a power signal detection unit 102 for detecting the operation power of the ball mill and transmitting the detected power to the MCU controller. The double-microphone noise reduction pickup for collecting audio signals and the audio spectrum analyzer for receiving and analyzing the audio signals of the double-microphone noise reduction pickup are arranged in the audio signal detection unit 101, the power transmitter is arranged in the power signal detection unit 102, and signal transmission is carried out between the signal detection transmission unit 100 and the MCU controller through a shielded cable.
The ore feeding amount detecting unit 200 includes a weighing sensor disposed on the ore feeding belt, and a weighing force-measuring transmitter for receiving a weight signal detected by the weighing sensor, converting the weight signal into a digital signal, and transmitting the digital signal to the MCU controller.
The data processing module determines the current grindable ore quantity range of the ball mill through a parameter automatic identification algorithm, calculates the current required ore feeding quantity through a dynamic control algorithm, and compares the current required ore feeding quantity with the instantaneous ore feeding quantity of the ore feeding belt.
The human-computer interface is a liquid crystal display screen and is connected with the MCU controller.
The double-wheat noise reduction pickup collects the audio frequency of the operation of the ball mill and transmits the audio frequency to the grinding audio spectrum analyzer, the grinding audio spectrum analyzer transmits the analyzed grinding audio spectrum to the MCU controller, meanwhile, the power transmitter detects the operation power of the ball mill and transmits the operation power to the MCU controller, the weighing sensor on the ore belt detects the instantaneous ore quantity signal and transmits the instantaneous ore quantity signal to the weighing and force measuring transmitter, and the weighing and force measuring transmitter converts the weight signal into a digital signal and transmits the digital signal to the MCU controller.
The method comprises the steps that the controller MCU determines the current grindable ore quantity range of the ball mill according to a parameter self-identification algorithm, then calculates the current required ore feeding quantity according to a dynamic control algorithm, compares the received instantaneous ore quantity signals of the ore feeding belt, automatically adjusts output signals to an ore feeding machine frequency converter according to the deviation of the instantaneous ore quantity and the calculated ore quantity of the ore feeding belt, enables the ore quantity required by the ball mill to be stabilized within the process required range, and then sends the ground ore materials to a grading system for grading.
The MCU controller also can provide the ball mill feeding cumulant and instantaneous feeding amount, power and audio data of shift, day and month according to the process requirements, and displays the data on the liquid crystal display screen in real time to provide on-site personnel data query. The MCU controller can be switched to a manual state according to requirements, so that field operators can conveniently and manually adjust the ore feeding amount when debugging the ball mill.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. The utility model provides a ball mill ore feeding volume dynamic adjustment device which characterized in that: including the MCU controller, be used for carrying out the signal detection transmission unit that detects to the operating parameter of ball mill, be used for carrying out the ore feeding volume detecting element that detects to the instantaneous ore quantity of ore feeding belt, be used for carrying out the ore deposit converter of adjusting to the instantaneous ore quantity of ore feeding belt, be equipped with in the MCU controller and be used for calculating the required most suitable ore quantity of ball mill and carry out the data processing module of comparison with the instantaneous ore quantity of ore feeding belt, signal detection transmission unit and ore feeding volume detecting element data transmission after will detecting to the MCU controller, data processing module in the MCU controller calculates the comparison back to data, will change the adjustment signal transmission of instantaneous ore quantity to ore deposit converter.
2. The dynamic adjusting device for the ore feeding amount of the ball mill according to claim 1, which is characterized in that: the signal detection and transmission unit comprises an audio signal detection unit and a power signal detection unit, wherein the audio signal detection unit is used for detecting the running audio of the ball mill and transmitting the running audio to the MCU controller, and the power signal detection unit is used for detecting the running power of the ball mill and transmitting the running power to the MCU controller.
3. The dynamic adjusting device for the ore feeding amount of the ball mill according to claim 2, which is characterized in that: the double-microphone noise reduction pickup for collecting audio signals and the audio spectrum analyzer for receiving the audio signals of the double-microphone noise reduction pickup and analyzing are arranged in the audio signal detection unit, and the power transmitter is arranged in the power signal detection unit.
4. The dynamic adjusting device for the ore feeding amount of the ball mill according to claim 1, which is characterized in that: the ore feeding amount detection unit comprises a weighing sensor arranged on the ore feeding belt and a weighing force-measuring transmitter which is used for receiving a weight signal detected by the weighing sensor, converting the weight signal into a digital signal and transmitting the digital signal to the MCU controller.
5. The dynamic adjusting device for the ore feeding amount of the ball mill according to claim 1, which is characterized in that: the system also comprises a human-computer interface which can display data of ore feeding cumulant, instantaneous ore feeding quantity, power and audio frequency, and the human-computer interface is connected with the MCU controller.
6. The dynamic adjusting device for the ore feeding amount of the ball mill according to claim 5, which is characterized in that: the human-computer interface is a liquid crystal display screen.
7. The dynamic adjusting device for the ore feeding amount of the ball mill according to claim 1, which is characterized in that: and the signal detection transmission unit and the MCU controller are in signal transmission through a shielded cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922063790.9U CN211755925U (en) | 2019-11-26 | 2019-11-26 | Dynamic ore feeding amount adjusting device of ball mill |
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| CN201922063790.9U CN211755925U (en) | 2019-11-26 | 2019-11-26 | Dynamic ore feeding amount adjusting device of ball mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950701A (en) * | 2022-07-28 | 2022-08-30 | 中国电力科学研究院有限公司 | Intelligent energy terminal, system and operation control method for industrial ball mill |
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2019
- 2019-11-26 CN CN201922063790.9U patent/CN211755925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950701A (en) * | 2022-07-28 | 2022-08-30 | 中国电力科学研究院有限公司 | Intelligent energy terminal, system and operation control method for industrial ball mill |
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