Tilting mechanism of material distributor and its control method
A technology of tilting mechanism and control method, which is applied in the arrangement of bells and funnels, etc., can solve the problems of inconvenient adjustment of the fixed angle of the cloth ring stopper, slow angle positioning speed, complicated mechanical transmission, etc., and solve the problems of long life and high precision positioning operation, Fast response and good robustness
Active Publication Date: 2020-02-21
QINHUANGDAO QINYE HEAVY IND
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Problems solved by technology
[0003] There are some disadvantages in the traditional large-scale blast furnace bellless top distributor. For example, the α angle is driven by a motor, and the mechanical transmission is complicated; the angle positioning speed is slow and the accuracy is not high. Fixed angle adjustment is inconvenient, poor programmability, etc.
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[0062] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0063] The basic implementation of the tilting mechanism of the distributor and the control method of the mechanism proposed by the present invention are as follows: adopting the fuzzy PID intelligent control technology of the inner and outer double closed loops of the displacement angle; the inner loop adopts a displacement correction controller to realize the displacement closed loop control of each hydraulic cylinder , the displacement correction controller takes the displacement fuzzy PID controller as the core unit, the displacement value of each hydraulic cylinder is the actual value X, and the displacement average value of the three hydraulic cylinders is the target value, the difference ex and the difference change rate ecx between the target value and the actual value are used as the input of the fuzzy PID controller, and th...
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The invention discloses a tilting mechanism of a distributor and a control method of the mechanism. The mechanism comprises: a mechanism body, a chute for feeding materials is arranged on the mechanism body, and the tilting angle and / or rotation angle of the chute can be adjusted ; The driving actuator, the driving actuator includes a driving part that provides the driving force and a connecting rod that transmits the driving force; the transmission mechanism, the transmission mechanism is connected with the connecting rod and acts on the driving actuator Adjust the tilt angle and / or rotation angle of the chute; the control mechanism, the control mechanism includes an angle detection unit, an angle fuzzy PID controller, a displacement detection unit, a displacement correction controller and a proportional valve controller. The tilting mechanism of the distributor of the invention has the characteristics of fast response speed, high positioning accuracy and good robustness.
Description
technical field [0001] The invention relates to a control method, in particular to a tilting mechanism of a distributor and a control method of the mechanism. Background technique [0002] At present, the tilting angle (α angle) of the chute of the high-precision distributor of a large blast furnace is driven and positioned by three or more hydraulic cylinders, and cooperates with the rotation angle (β angle) of the chute driven by a motor to complete the falling of the charge on the circular section of the blast furnace. Material point control is applied to many material distribution processes such as multi-gear circular material, single-ring material, fan-shaped material, spiral material, and fixed-point material. The throat diameter of large blast furnace is large, the distribution chute is long, and the precise control of the α angle position can realize the uniform distribution of the furnace charge in the circumferential direction and radial direction of the furnace th...
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IPC IPC(8): C21B7/20
CPCC21B7/20
Inventor 陈晓光杨树新郁景民冷春辉党志东张博高放赵磊静李炳奇李金超白雪峰
Owner QINHUANGDAO QINYE HEAVY IND