CN106902970A - A kind of control method of autogenous tumbling mill - Google Patents
A kind of control method of autogenous tumbling mill Download PDFInfo
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- CN106902970A CN106902970A CN201510975989.2A CN201510975989A CN106902970A CN 106902970 A CN106902970 A CN 106902970A CN 201510975989 A CN201510975989 A CN 201510975989A CN 106902970 A CN106902970 A CN 106902970A
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- mcu
- alarm
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- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
Abstract
The invention discloses a kind of control method of autogenous tumbling mill, speed probe after being installed on the power transmission shaft, the motor is variable-frequency motor, electric machine controller is installed on motor, torductor is installed on motor output shaft, Weight-measuring device is installed in the first support and second support, the sliding bearing body is provided with temperature sensor, the speed probe, torductor, Weight-measuring device and temperature sensor are connected with MCU respectively, and MCU is connected with display, alarm and memory.Technical purpose of the invention be provide it is a kind of can whether automatic decision charging suitable, adjust automatically charging speed, the phenomenon that can avoid " rise tripe " occur, with monitoring device, with alarm and self-protection function ultra-fine autogenous tumbling mill control method.
Description
Technical field
The present invention relates to autogenous tumbling mill field, particularly a kind of control method of autogenous tumbling mill.
Background technology
Autogenous tumbling mill is also known as run-of-mine-milling machine, its operation principle is essentially identical with ball mill, the difference is that its barrel diameter is bigger, without ball or any other powder grinding medium, but by the use of pulverized material in cylinder in itself as medium, successive Ground shock waves and phase attrition shell to reach the purpose of grinding in cylinder.
The control method of autogenous tumbling mill has the influence of key to the operating efficiency of autogenous tumbling mill with reliability, the control method of existing autogenous tumbling mill automatically controls less efficient, in charging, whether the speed for needing artificial judgment to feed is suitable, the bad phenomenon for being susceptible to " rise tripe " of control, when " rise tripe " occurs, it is impossible to enough automatic, adjustment charging in time speed；The safety monitoring assembly of existing most of autogenous tumbling mill is less, and function is not perfect enough, does not possess warning function and self-protection function.
The content of the invention
For the deficiency that above-mentioned autogenous tumbling mill control method is present, technical purpose of the invention be provide it is a kind of can whether automatic decision charging suitable, adjust automatically charging speed, the phenomenon that can avoid " rise tripe " occur, with monitoring device, with alarm and self-protection function ultra-fine autogenous tumbling mill control method.
The present invention is achieved through the following technical solutions：
A kind of control method of autogenous tumbling mill, speed probe after being installed on the power transmission shaft, the motor is variable-frequency motor, electric machine controller is installed on motor, torductor is installed on motor output shaft, Weight-measuring device is installed in the first support and second support, the sliding bearing body is provided with temperature sensor, the speed probe, torductor, Weight-measuring device and temperature sensor are connected with MCU respectively, and MCU is connected with display, alarm and memory；
Specifically implement according to following steps：
Step 1, the tach signal n that speed probe on the power transmission shaft will measure power transmission shaft is transmitted to MCU in real time, the MCU is judged after receiving tach signal n, if n ＞ n1 or n ＜ n2, the n1, n2 is respectively the maximum of autogenous tumbling mill, minimum speed, then MCU sends deceleration/speedup order to electric machine controller, after electric machine controller receives deceleration/speedup order, decelerating through motor/speedup, so that n2 ＜ n ＜ n1, if n ＞ n1 or n ＜ n2, then MCU sends alarm command to alarm, the alarm sends alarm after receiving alarm command；
The torque signal T that step 2, square measuring instrument will be measured in real time is transmitted to MCU in real time; after the MCU receives torque signal T; if T ＞ T1; the T1 is the peak torque of autogenous tumbling mill; then MCU sends the order of shutdown to the controller of motor; alert command is sent to alarm, controlled motor is shut down after electric machine controller receives halt command, alarm sends alarm after receiving alarm life；
The temperature signal t that the temperature sensor that step 3, the sliding bearing body are provided with will be measured is transmitted to MCU; after the MCU receives temperature signal t; if t ＞ t1; the t1 is the maximum temperature of sliding bearing normal work; then MCU sends alarm command to alarm; the order of shutdown is sent to the controller of motor, controlled motor is shut down after electric machine controller receives halt command, alarm sends alarm after receiving alarm life；
Step 4,The weight signal m that the Weight-measuring device will measure autogenous tumbling mill is real-time transmitted to MCU,After the MCU receives weight signal m,If m ＞ m1,The m1 is weight when machine drum body is built with most materials when autogenous tumbling mill is in high efficient district,Then MCU sends the command signal for reducing inlet amount to charging machine controller,After the charging machine controller receives the command signal for reducing inlet amount,The inlet amount of charger is controlled to reduce,If m ＜ m2,The m2 is weight when machine drum body is built with minimum material when autogenous tumbling mill is in high efficient district,Then MCU sends the command signal for increasing inlet amount to charging machine controller,After the charging machine controller receives the command signal for increasing inlet amount,Controlling the inlet amount of charger increases,Reduce in charger/increase inlet amount after,As m2 ＜ m ＜ m1,Then material is in normal amount in autogenous tumbling mill,Now,MCU sends the inlet amount of reduction 10~30% to charging machine controller,Then it is maintained at this inlet amount；Data-signal that the MCU will be received and the signal command for sending all send the signal command of storage, display to memory and display respectively, memory receives the data-signal for receiving MCU and the signal command for sending after storage is ordered and stores, and display shows in the display each data after receiving display command in real time.
The beneficial effects of the invention are as follows:
1st, by being provided with the devices such as MCU, speed probe, torductor, Weight-measuring device and temperature sensor; make it possible to the equipment such as the bearing to autogenous tumbling mill, motor, decelerator to protect; when bearing temperature is raised; motor is enabled to close; avoid bearing from being damaged because temperature is too high, cause extreme loss；The peak torque of rotation system is controlled by torductor, it is to avoid the equipment such as motor is damaged because stress is excessive；By the maximum (top) speed for controlling power transmission shaft, it is to avoid autogenous tumbling mill is damaged because rotating speed is excessive；By gravity measuring device, the charging rate of autogenous tumbling mill is automatically controlled, it is to avoid the phenomenon of " rise tripe " so that autogenous tumbling mill normally runs, if autogenous tumbling mill is for non-setting operation, alarm sends alarm, plays a part of alarm；By showing the working condition of autogenous tumbling mill in real time in the display, the supervisory function bit to autogenous tumbling mill can be played.
Brief description of the drawings
Fig. 1 is control method schematic diagram of the invention；
Fig. 2 is structural representation of the invention.
Marked in figure：1 it is first support, 2 be second support, 3 be power transmission shaft, 4 be cylinder, 5 be liner plate, 6 be guide plate, 7 be feeding cylinder, 8 be charger, 9 be the first end cap, 10 be the second end cap, 11 be shaft coupling, 12 be decelerator, 13 be motor, 14 be annular discharging opening, 15 is guide vane.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
A kind of control method of autogenous tumbling mill as depicted in figs. 1 and 2, the structure of this autogenous tumbling mill includes：First support 1,Second support 2,Power transmission shaft 3,Cylinder 4,Liner plate 5,Guide plate 6,Feeding cylinder 7,Charger 8,First end cap 9,Second end cap 10,Shaft coupling 11,Decelerator 12,Motor 13,Annular discharging opening 14 and guide vane 15,First end cap 9,Second end cap 10 is separately mounted to the two ends of cylinder 4,Feeding cylinder 7 is installed on first end cap 9,Second end cap 10 is fixedly connected with one end of power transmission shaft 3,Feeding cylinder 7 is separately mounted in first support 1 and second support 2 with power transmission shaft 3,The other end of power transmission shaft 3 is connected with the power output shaft of decelerator 12,The power input shaft of the decelerator 12 is connected with motor 13,Liner plate 5 and guide plate 6 are installed in the cylinder 4,Cylinder 4 is provided with annular discharging opening 14 at the second end cap 10,The annular discharging opening 14 carries circular screen；
Wherein, first end cap 9, second end cap 10 can be arranged on the two ends of cylinder 4 by bolt, feeding cylinder 7 is installed by the first end cap 9, second end cap 10 is fixedly connected with one end of power transmission shaft 3, annular discharging opening 14 is provided with cylinder 4, so that material feeds from the central axis of cylinder 4, from the bottom discharging of cylinder, enable that autogenous tumbling mill fully grinds to mineral, and will not be influenceed by ore pulp buoyancy, by liner plate 5 and guide plate 6, enable that material smoothly enters from feeding cylinder, discharging opening 14 is discharged, guide plate 6 can also be caused when cylinder 4 is rotated, by mineral zone to being higher by, leave again, so that ore clashes into mutually；Power transmission shaft 3 had both made the support shaft of cylinder 4, it is also line shaft, the power set of decelerator 12 and motor 13 are connected with power transmission shaft 4, so that the weight saving of cylinder 4 of autogenous tumbling mill, take up room smaller, transmission system all closes dust-tight, directly driven by shaft coupling 11, so that the transmission of autogenous tumbling mill is in hgher efficiency, cost is lower, the gear being driven through on outer barrel 4 of the autogenous tumbling mill of transmission, and gear can form a pressurization to cylinder, so that the power that the bearing of autogenous tumbling mill bears is bigger, this structure also causes that the power that bearing bears reduces.
The one end of the feeding cylinder 7 carries horn mouth, the other end is provided with mounting ring, the inside of feeding cylinder 7 is provided with guide vane 15, the mounting ring of feeding cylinder 7 is fixedly mounted by bolt with the first end cap 9, sliding bearing is installed between feeding cylinder 7 and first support 1, the entrance of feeding cylinder 7 is provided with charger 8, and controller is provided with charger 8；
Wherein, it is provided with guide vane 15 by feeding cylinder 7 so that when being fed to feeding cylinder, material can quickly enter, smoothly enter in cylinder, it is to avoid material is blocked in feeding cylinder, guide vane 15 is to be welded in feeding cylinder 7.
One end of the power transmission shaft 3 is provided with mounting ring, and the other end is provided with shaft coupling 11, and the mounting ring of power transmission shaft 3 is fixedly mounted by bolt with the second end cap 10, and sliding bearing is provided between power transmission shaft 3 and second support 2；
Wherein, mounting ring is installed by one end of power transmission shaft 3, the other end is provided with shaft coupling 11 so that power transmission shaft is convenient to be connected with the power output shaft of the second end cap and decelerator 12, and the lubricating system of the sliding bearing being provided between power transmission shaft 3 and second support 2 is pressure oil lubrication.
The power input shaft of the decelerator 12 is connected with the power output shaft of motor 13 by shaft coupling 11, and the shaft coupling 11 is elastic dowel pin shaft coupling；
Wherein, the shaft coupling of elastic dowel pin shaft coupling can use cast steel, and this elastic dowel pin shaft coupling is cheap, cost is relatively low, simple structure, transmission efficiency, need not safeguard substantially.
The liner plate 5 is mounted by means of bolts in cylinder 4, and the inner surface of liner plate 5 is provided with convex ball.
Wherein, be provided with convex ball by the inner surface of liner plate 5 so that ore can bump against in autogenous tumbling mill with convex ball, can be ejected to all directions after shock so that ore to grind effect more preferable.
The guide plate 6 is the steel bar of distortion, and guide plate 6 is arranged on cylinder 4 by bolt.
Wherein so that when being fed to feeding cylinder 7, material can quickly enter, smoothly enter in cylinder 4, it is to avoid material 7 blocking in feeding cylinder.
Speed probe after being installed on the power transmission shaft 3, the motor 13 is variable-frequency motor, electric machine controller is installed on motor 13, torductor is installed on the output shaft of motor 13, Weight-measuring device is installed in the first support 1 and second support 2, the sliding bearing body is provided with temperature sensor, and the speed probe, torductor, Weight-measuring device and temperature sensor are connected with MCU respectively, and MCU is connected with display, alarm and memory；
Wherein, the electric machine controller being provided with enables to MCU to be controlled motor 13, torductor is installed on the power output shaft of motor 13, motor 13 is prevented to be burned out in overload, the temperature sensor being provided with sliding bearing body can measure the operating temperature of bearing, prevent sliding bearing temperature too high, and destroy bearing arrangement or cause the drive mechanism of autogenous tumbling mill to malfunction, the Weight-measuring device of installation can coordinate with the controller of MCU and charger 8 and charger 8, autogenous tumbling mill is avoided to rise tripe, the delivery rate of adjust automatically material, so that autogenous tumbling mill is in real time all in high-efficiency operation state.
Step one, the tach signal n that speed probe on power transmission shaft 3 will measure power transmission shaft 3 is transmitted to MCU in real time, the MCU is judged after receiving tach signal n, if n ＞ n1 or n ＜ n2, the n1, n2 is respectively the maximum of autogenous tumbling mill, minimum speed, then MCU sends deceleration/speedup order to electric machine controller, after electric machine controller receives deceleration/speedup order, decelerating through motor/speedup, so that n2 ＜ n ＜ n1, if n ＞ n1 or n ＜ n2, then MCU sends alarm command to alarm, the alarm sends alarm after receiving alarm command；
The torque signal T that step 2, torductor will be measured in real time is transmitted to MCU in real time; after the MCU receives torque signal T; if T ＞ T1; the T1 is the peak torque of autogenous tumbling mill; then MCU sends the order of shutdown to the controller of motor; alert command is sent to alarm, controlled motor is shut down after electric machine controller receives halt command, alarm sends alarm after receiving alarm life；
The temperature signal t that the temperature sensor that step 3, the sliding bearing body are provided with will be measured is transmitted to MCU; after the MCU receives temperature signal t; if t ＞ t1; the t1 is the maximum temperature of sliding bearing normal work; then MCU sends alarm command to alarm; the order of shutdown is sent to the controller of motor, controlled motor is shut down after electric machine controller receives halt command, alarm sends alarm after receiving alarm life；
Step 4,The weight signal m that the Weight-measuring device will measure autogenous tumbling mill is real-time transmitted to MCU,After the MCU receives weight signal m,If m ＞ m1,The m1 is weight when machine drum body 4 is built with most materials when autogenous tumbling mill is in high efficient district,Then MCU sends the command signal for reducing inlet amount to the controller of charger 8,After the controller of the charger 8 receives the command signal for reducing inlet amount,The inlet amount of charger 8 is controlled to reduce,If m ＜ m2,The m2 is weight when machine drum body 4 is built with minimum material when autogenous tumbling mill is in high efficient district,Then MCU sends to the controller of charger 8 increases the command signal of inlet amount,After the controller of the charger 8 receives the command signal for increasing inlet amount,Controlling the inlet amount of charger 8 increases,Reduce in charger 8/increase inlet amount after,As m2 ＜ m ＜ m1,Then material is in normal amount in autogenous tumbling mill,Now,MCU sends the inlet amount for reducing 15% to the controller of charger 8,Then it is maintained at this inlet amount;Data-signal that the MCU will be received and the signal command for sending all send storage order to memory, and memory receives the data-signal for receiving MCU and the signal command for sending after storage order and stores.
Claims (1)
1. a kind of control method of autogenous tumbling mill, it is characterised in that：The power transmission shaft（3）Speed probe after upper installation, the motor（13）It is variable-frequency motor, motor（13）On electric machine controller, motor are installed（13）Torductor, the first support are installed on output shaft（1）And second support（2）On Weight-measuring device is installed, the sliding bearing body is provided with temperature sensor, and the speed probe, torductor, Weight-measuring device and temperature sensor are connected with MCU respectively, and MCU is connected with display, alarm and memory；
Specifically implement according to following steps：
Step 1, the power transmission shaft（3）On speed probe will measure power transmission shaft（3）Tach signal n be transmitted to MCU in real time, the MCU is judged after receiving tach signal n, if n ＞ n1 or n ＜ n2, described n1, n2 are respectively the maximum of autogenous tumbling mill, minimum speed, then MCU sends deceleration/speedup order to electric machine controller, after electric machine controller receives deceleration/speedup order, decelerating through motor/speedup, so that n2 ＜ n ＜ n1, if n ＞ n1 or n ＜ n2, then MCU sends alarm command to alarm, and the alarm sends alarm after receiving alarm command；
The torque signal T that step 2, square measuring instrument will be measured in real time is transmitted to MCU in real time; after the MCU receives torque signal T; if T ＞ T1; the T1 is the peak torque of autogenous tumbling mill; then MCU sends the order of shutdown to the controller of motor; alert command is sent to alarm, controlled motor is shut down after electric machine controller receives halt command, alarm sends alarm after receiving alarm life；
The temperature signal t that the temperature sensor that step 3, the sliding bearing body are provided with will be measured is transmitted to MCU; after the MCU receives temperature signal t; if t ＞ t1; the t1 is the maximum temperature of sliding bearing normal work; then MCU sends alarm command to alarm; the order of shutdown is sent to the controller of motor, controlled motor is shut down after electric machine controller receives halt command, alarm sends alarm after receiving alarm life；
The weight signal m that step 4, the Weight-measuring device will measure autogenous tumbling mill is real-time transmitted to MCU, after the MCU receives weight signal m, if m ＞ m1, the m1 are machine drum body when autogenous tumbling mill is in high efficient district（4）Weight during built with most materials, then MCU is to charger（8）Controller sends the command signal for reducing inlet amount, the charger（8）After controller receives the command signal for reducing inlet amount, charger is controlled（8）Inlet amount reduce, if m ＜ m2, the m2 is machine drum body when autogenous tumbling mill is in high efficient district（4）Weight during built with minimum material, then MCU is to charger（8）Controller sends the command signal for increasing inlet amount, the charger（8）After controller receives the command signal for increasing inlet amount, charger is controlled（8）Inlet amount increase, in charger（8）After reduction/increase inlet amount, as m2 ＜ m ＜ m1, then material is in normal amount in autogenous tumbling mill, and now, MCU is to charger（8）Controller sends the inlet amount of reduction 10~30%, is then maintained at this inlet amount；Data-signal that the MCU will be received and the signal command for sending all send the signal command of storage, display to memory and display respectively, memory receives the data-signal for receiving MCU and the signal command for sending after storage is ordered and stores, and display shows in the display each data after receiving display command in real time.
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| CN201510975989.2A CN106902970A (en) | 2015-12-23 | 2015-12-23 | A kind of control method of autogenous tumbling mill |
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| CN201510975989.2A CN106902970A (en) | 2015-12-23 | 2015-12-23 | A kind of control method of autogenous tumbling mill |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111135944A (en) * | 2019-12-06 | 2020-05-12 | 华北电力科学研究院有限责任公司 | Method and system for determining coal blockage of coal mill of power station boiler |
| CN114113664A (en) * | 2022-01-27 | 2022-03-01 | 山东泗水海韵粮机有限公司 | Intelligent monitoring method and system for working state of peeling machine |
| CN114130485A (en) * | 2021-11-25 | 2022-03-04 | 东莞市华汇精密机械有限公司 | Double-convex-pin-type nano sand mill |
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