SU84407A1 - Device for controlling the concentration and amount of feed mass on paper machines - Google Patents

Description

The subject of the invention is a device for controlling the concentration and quantity of the feed mass on paper machines within the range of mass concentration from 1.5% to 5, OVo.

A distinctive feature of the device is that it is made in the form of three vertically arranged, communicating with each other vessels, of which the upper vessel is designed as a cistern with overflow and nozzle, medium also as a cistern with overflow and friction tube, and the lower one has an overflow, a nozzle and a septum not reaching the bottom, dividing it into compartments for passing mass and water.

FIG. 1 schematically shows a device in vertical section; FIG. 2 is the same in section along ab in FIG. one.

The proposed device consists of three interconnected vessels: / - a vessel for regulating the volume of the applied mass into the chamber cavity //; // - vessel for regulating the amount of absolutely dry fiber supplied; /// is a vessel for regulating the volume of feed mass, and hence the constant concentration of fiber in the mass leaving the apparatus.

The vessel / consists of a tank / with overflow 2 and nozzle 3, which serves to skip a constant volume of mass, regardless of its concentration.

The vessel // consists of an overflow tank 4 with a friction tube 5, which passes a smaller volume of the passing liquid through itself with a thick viscous mass, and a larger volume with a liquid less viscous mass. Moreover, the amount of absolutely dry fiber passing through the tube is regulated. The friction tube 5 at a high mass concentration passes through itself less absolutely dry fiber than at a low one. In connection with this, overflow 6 is provided in the vessel // so that there is an opportunity when it passes through the mass chamber with a high viscosity to raise the level in

No. 84407

tank 4 with the calculation of the release through the tube of a constant amount of absolutely dry fiber.

The vessel /// consists of a cistern with overflow of 7 n septum not reaching the bottom, dividing the cistern into two compartments: compartment 9 for the downstream mass and 10 compartment of water entering the pipe through pipe 11.

The presence of the tank / 2 in the tank allows to always pass a certain volume of liquid through it, since the pressure in the tank will always be constant. A device that passes through a constant amount of absolutely dry fiber and a constant volume mass will, therefore, give a constant concentration of fiber in the leaving mass, Regardless of the concept of the incoming mass. The mass of different volume and conceptrapy, entering the first & tank 1, will go into the tank 4. The same amount of mass from the tank / through the overflow will go back to the first basal basin. The mass entering tank 4, due to the malicia in the letter of the friction tube and overflow 6 with the appropriate profile, will leave it at different concentrations and with constant volume, but with constant; the smallest amount of absolutely dry military tea in drink. Of the excess mass overflow returns about 1 in to the pool. The mass entering the vessel /// is diluted with water and leaves at a certain speed and constant copsection, and the excess water through the overflow flows into the drain.

Subject invention

A device for adjusting the centering and the amount of feed mass on papermaking machines, about 10% and the fact that it is made in the form of three vertically arranged, communicating with each other vessels, with the vessel / outlet, the shape of a tank / with overflow 2 and hen 6, vessel // in the form of a tank 4 with transfer 6 and a fricciopia tube 5 and vessel /// in the form of a tank 9-10 with overflow 7, nozzle 11 and not reaching diaphragm 6 sharing it is separated into compartment 9 for P1) of the circulating mass and separated with 10dl of water.