SU377601A1 - METHOD OF STABILIZATION OF MOVEMENT PARAMETERS - Google Patents

Description

The invention relates to a tehnika of production of cement and similar materials for cooling the material exiting the rotary kiln.

There is a method of stabilizing the motion parameters of the cooling lattice of the rotary kiln refrigerator, which consists in damping the lattice drive rod when it starts.

A disadvantage of the known device is the uneven operation of the refrigerator, due to the fact that with increasing load, increasing driving forces of moving masses deform the elastic element connecting the connecting rod parts, iB resulting in the amplitude of oscillation of the cooling grid increases and the speed of the cooled material increases. Pr, and further increasing the load and, consequently, the amplitude of oscillation of the cooling grid, the angles of inclination of the suspensions in the extreme positions take on such a value that the movement of the material but the cooling grid can stop.

The purpose of the invention is to ensure smooth start-up of the refrigerator.

This is achieved by the fact that during the start-up of the lattice, the rigidity of the lattice drive rod is smoothly changed and the rod is fixed at a steady state of lattice oscillation.

2

The drawing shows a diagram of the inertial cooler.

The device includes a cooling grid 1 mounted on the suspensions 2, a crank mechanism 3, the connecting rod of which consists of a rod 4, a hydraulic cylinder 5 and a plunger 6. The cylinder cavities are interconnected by an oil line 7 connected to the slide valve 8, which is led in when closed. Sh1 oil pipe, for example, pressurized fluid passing through the pipeline. Balancer 9 and mt 1} link a crank mechanism to a cooling grid.

The device works as follows.

After switching on the drive (in the drawing, e shows), the fluid under the action of the plunger 5 is displaced from the lip of the cylinder 5 and along the pipeline 7 enters its cavity without rendering significant resistance to the plunger. In this case, the plunger performs a reciprocating motion in the cylinder with a stroke size corresponding to the dimensions and relative positioning of the parts of the crank-connecting rod mechanism. At the same time, the fluid passing through the oil pipe under pressure enters the spool device, closing the cross section of the oil pipe. With each double stroke of the hydraulic cylinder plunger, the spool valve continues to move

until complete overlap oil pipeline. This ensures a smooth start-up of the refrigerator at any load, and when the spool is closed, the lattice vibration parameters are constant for any fluctuations of the load, since with the oil pipeline gradually overlapping, its resistance increases and from some point the cooling lattice starts oscillating movements, gradually increasing amplitude to the calculated when the oil pipe is closed.

Subject invention

The method for stabilizing the parameters of the cooling lattice of the refrigerator is rotated, it consists in depreciation: of the drive rod of the lattice during its start, characterized in that, for the purpose of a smooth start of the chiller to work, during the start of the lattice, the stiffness of the rod of the drive of the lattice smoothly changes they fix the connecting rod at the steady state of oscillation of the lattice.