SU31756A1 - Mass concentration regulator - Google Patents

Description

In papermaking, regulators of the consistency of the working mass are used, based on the change in the quantity and, consequently, the weight of the mass in a vessel suspended from the balance beam and balanced for a given density, corresponding to its weight.

However, for example, asbestos-cement mass, used as a working solution in the manufacture of artificial slate and asbestos-cement pipes, is prone to the formation of precipitation, due to precipitation of cement particles from the solution. The sediment hardens and grows, as a result of which these devices are unsuitable for such solutions, since the sediments will increase the weight of the vessel regardless of the change in the consistency of the solution and disrupt the operation of the device.

In the proposed controller, a constant-velocity vessel with wings on the inner wall is used to bring the mass into rotation. An axle with wings on which a rotating mass acts is placed in the vessel, trying to rotate the said axis, which is prevented by the weight of the mass on the crank lever connected to the upper part of the axle with a normal mass consistency. With a change in the consistency of the mass, the force exerted on the axle wings and the crank lever, according to (106)

The water valve spindle is out of balance, and the water valve spindle articulated with it will change the amount of water flowing into the vessel.

In the schematic drawing of FIG. 1 shows a vertical section of the regulator; FIG. 2 is a front view of a device for changing the amount of water supplied to a vessel; FIG. 3 - detail.

A tank 1 with a nozzle 2, rotating in a bearing 3, the dimensions and design of which ensure easy and steady rotation, is mounted above the agitator feeding the machine. The tank / is driven into rotation from an electric motor or from a transmission with a sufficiently constant speed.

Inside the tank 7, an axis 4 rotating in the bearing 6 is lowered, on which wings 5 are mounted. In the funnel 7 reinforced concentrically with axis 4 or outside it, fixed or rotating together with the tank 7, the mass comes from the magazine sparger, supplied partially or completely, for example, a scoop with a wheel or a special pump through pipe 8. The upper edge of the tank / is folded with semi-folded material, under which there is a drain - a funnel 9, into which the surplus of the fed mass is drained and discharged through the drain pipe or the chute W back into the mixer.

Axis 4 with wings is prevented from rotating around its axis by the countering of the load (Fig. 2), acting through the crank lever 12 of the weighing device J3 and the pull of J4 on the lever / 5, mounted on axis 4.

FIG. 3 shows the device of the adjustable lever 15 with the change of the shoulder g.

The rotation of the tank / with a certain constant number of revolutions draws the mass in it also into rotation, due to its friction against the walls. This effect of the tank wall on the mass can be increased by standing on the walls of its ribs or special wings 17. The rotation of the mass acts on the wing 5 and tends to turn the axis 4, but this tendency, with a normal mass consistency, must be balanced by the above load // on the weight crank lever 12 .

With all the changes in the consistency, the force of the mass on the tank's tanks / and at the same time the force of the mass on the wings 5 changes. Lever 12 exits the equilibrium position by means of the pull 18 (fip 2) reposition the spindle of the water valve-19 on the pipe 20 From the water supply system, water is supplied to spread the mass and, accordingly, will increase or decrease the amount of water flowing in.

The desired degree of consistency of the mixes is established directly by the operator, for example, with an asbestos tube machine, viewed along the winding process, for which an organ is placed in front of the machine that acts on the traction system and the levers 2/22, 25, which stops the load 11 by the lever 12, while The desired wall thickness of the asbotube will not be obtained with this winding condition.

The arrangement and dimensions of the wings 17, which rotate the column of the working mixture inside the tank /, and the wings 5 that resist this rotation, as well as the ratio of the shoulders g can be brought to limits, turning the apparatus into a kind of brake. Therefore, the stopping power of the apparatus can be made quite large, and in any case sufficient for direct replacement of the valve 19, in particular.

if it is a balanced design. Thus, no special mechanical actuators (servomotors) are required to act on the valve.

The precipitation from the working mixture is generally difficult, since the apparatus is a talker and the degree of agitation of its mass can be brought to almost sufficient.

The formation of precipitation on the axis 4 and on the bases of the wings 5 should be less responsive to the apparatus, in view of the small shoulder and generally low rotational speeds in the center of the apparatus, than the formation of precipitation on the tank 7, which should occur even slower than the deposition on the axis; The effect of precipitation can be adjusted as indicated above by the driver.

Since the resistance of a fluid, when its velocity changes, changes much more than the velocity, even with negligible fluctuations in the density of the mixture, such changes in the equilibrium of the system must be expected to be sufficient to provide the desired sensitivity of the apparatus. Thus, the choice of speed can affect the degree of sensitivity.

The subject matter of the invention.

1. A regulator of paper, asbestos-cement and similar mass concentration, characterized in that, when driven at a constant speed by means of a bevel gear, the tank 7, driven by a suitable motor, at a lower end, rotates a bearing 2 in the bearing 3 and the wings 77 are placed along the geometrical axis of the cylindrical part with wings 5, the axis 4 rotating in the bearing b with the lever 5 fixed in the upper part connected to the lever 14 with the horizontal arm A load-shifting load 7 / is articulated with a spindle 75 of the water valve spindle / 9 on the supply water to dilute the mass of the tube 20 (fig. 1 and 2).

2. The form of implementation of the controller mentioned in p. 1, differing by the fact

that the upper edge of the tank 7, folded with semifold, in order to drain the excess mass continuously flowing through the tube 8 through the funnel 7, is located above the drain funnel 9, equipped to direct the excess mass into the pool, for its supply, with pipe Yu (Fig. 1 ).

3. The form of implementation of the lever 12 indicated in paragraph 1, characterized in that

that to establish the desired degree of mass concentration, a system of levers 23, 22, 2 / is attached to the load 11, of which the latter is connected to a device for acting on the said levers located in front of the paper, folder and the like (Fig. 2).

- /

FIG. 2

/ S / f

 J

-JLG (. I d

/five

J8