SU527203A1 - Method for automatic control of crusher loading - Google Patents

Description

(54) AUTOMATIC CONTROL METHOD FOR LOADING THE DEARCH

The method is carried out as follows.

The product, which is undergoing processing, is fed from gstattel 1 to crusher 2. Yes.icom 3 cclr ckr-tb power consumption of the electric elecron 4, and 5 - npoHSBOAiiTejTbfiocTb of the drawers 2. On the quadratic converter of 6gl. t in icBsjipivr, on de; shtele 7, a delegate is produced, proportional, proportional to the manufacturer of the truth and inversely proportional to the consumption) (with a corner: .01C Yusti K-, while the search for the max-mummus of the positioner K is carried out on the basis of his two matching values obtained by forcing a change. ruzki crusher.

The load of the motor is carried out depending on the extreme power and the magnitude of the corresponding squared capacity of the power consumed by the motor.

Initially, the command block 8 connects the closing element 9, where the first KI value is activated. The second step is fed and shylc to the block 10 of the formation of the control signal load and vyzgoyat through the stabilizer 11 change the load crusher in one direction or another. The third step is to memorize the already changed value of the criterion Kj on the storage element 12. Then, on the element 13, the values KI and Kj are compared, and if K is less than K, then the next command to change the load is changed to the direction in which it was changed on the second switch and if K is more than K21, then the load is changed in the other direction.

FIG. 2 it is possible to trace the drift of static characteristics depending on the properties of the source

material m degree crushed. A characteristic feature of the static characteristic Q (P) is that when loading RI is critical performance, the load of the electric motor which leads to clogging of the crusher due to the product and its stopping. Therefore, retouching hatching at maximum critical performance has been eliminated. The same is also true for Q (H), but at a lower load. P {) PO crusher in terms of productivity is used by chemical waste. Therefore, the spring {Pj load, when the criterion K - has a max. 1, and the regulation according to its MaKCHKij-Tviy allows you to prevent the transition beyond PI and to ensure stable operation of the crusher at the maximum allowable production of the corresponding P2 load.

 the invention

A method for automatically controlling the crusher loading, including measuring the consumed power of the electric motor and changing the drive load of the electric motor, characterized in that, to maintain the maximum allowable performance of the crusher with fluctuations of the physical properties of the original product, the crusher's performance is determined the ratio of the square of the performance to the power consumed, and the change in the load of the electric motor is carried out depending on the extreme The ratio of the square of the performance to the power consumption of the electric motor.

Sources of information taken into account

5 in the examination:

1. The patent of Frevdia number 2140782 but cl. B 02 C 23/00.

one

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