SU889078A1 - Rotary powder distributing device - Google Patents

Description

(54) ROTARY DISPERSON

I

The invention relates to a technique of rotary apparatuses for dispersing liquids, viscoelastic and solid materials in the form of emulsions and suspensions, and can be used in the chemical, food, engineering, paintwork and other industries.

A device for dispersion is known, which contains a conical stator with openings in the upper part and a conical rotor with different taper and concentrically located conical rotors with a constant pitch on its surface | .

The closest technical solution to the invention is a rotary dispersant containing a truncated conical stator with openings in the upper part and concentric with it a hollow truncated conical rotor with different taper and grooves located on the screw.

A VOY line on its outer surface, the grooves being made in increments that increase in the direction of increasing the diameter of the rotor 2.

These devices are characterized by an unsatisfactory quality of the suspension as a result of the slip of the grain of 1x particles of solid materials of the suspension along the helical groove.

The aim of the invention is to improve the quality of dispersion of the suspension and reduce specific energy costs.

Claims (2)

The goal is achieved by the fact that in the rotor wall of a rotary dispersant containing a truncated Kotoi stator and a concentric hollow truncated conical rotor located concentrically with conveying grooves located along a helical line, and a feeding device located in the narrow part of the rotor, are made up of rows of holes located above trans port grooves parallel to them. at the same time, the feeding device is large but in the form of a screw for feeding material directly into the hollow rotor, and the beginnings of the transporting grooves are located at some distance from the end of the narrow part of the rotor. FIG. 1 shows a rotary disperser, vertical section; in fig. 2 - conical rotor, top view; in fig. 3 - section of the conveying screw grooves and holes. Rotary disperser consists of a truncated conical stator 1, equipped with a cooling jacket 2 and a conical bottom 3 with a discharge pipe. Inside the conical stator there is a concentric hollow truncated conical rotor 4, open at the top and closed at the bottom. The conical rotor in the lower part is fixed to the drive shaft 5, which in the upper part is made in the form of an auger and together with the pipe 6 which has a flange 7 partly entering the upper opening of the conical rotor and forms a feeding device. The pipe 6 has a filling nozzle 8 On the outer surface The conical rotor 4 has helical grooves 9 and holes 10, which are located along a helical line behind the helical grooves. The rotary dispersant operates as follows. The shaft 5 is driven into rotation, with the result that the screw blades seize the initial mixture and move it inside the conical rotor, creating pressure inside it. Under the action of pressure and centrifugal force, the initial mixture leaves through about 10 and falls into the gap between the outer wall of the conical rotor and the inner surface of the conical stator 1. In this gap, the mixture undergoes dispersion due to shear deformations in the material layer. Next, the mixture is withdrawn from the dispersion zone 84, gets into the screw conveying grooves, and is discharged through the discharge pipe from the rotary dispersant. Coolant is supplied to the jacket 2. Due to the fact that the conical rotor is made hollow, and there are holes behind each conveying screw groove and along it, it is possible to feed the suspension directly into the dispersion zone, moreover, one particle of the suspension does not fall into the screw conveying groove, mine the dispersion zone only once, and the energy costs of dispersing a unit volume of suspension are immediately reduced from there. An inventive rotary dispersant containing a truncated conical stator and concentric with it. A disposed hollow truncated conical rotor with conveying grooves located along a helical line and a feeding device located in the narrow part of the rotor, characterized in that, in order to improve the quality of dispersion and reduce specific energy costs, in the wall of the rotor are made of rows of holes placed above the transporting grooves parallel to them, while the feeding device is made in the form of a screw l feed the material directly into the polster rotor, and the beginning of the transporting grooves are located at some distance from the end of the narrow part of the rotor. Sources of information taken into account in the examination 1.Patent of France No. 2092505, cl. B 01 F 3/00, 1972. 2. USSR author's certificate number 649451, cl. B 01 F 7/16, 1979. ten eight W Lf.