SU778762A1 - Blade-type mixer - Google Patents

Description

one

This invention relates to devices for mixing highly viscous materials. chemical, food and other industries.

A mixer is known that includes a support frame, a housing with loading and unloading openings and a shaft with blades l.

The disadvantage of this mixer is the unidirectional movement of the mixing and lx particles from the loading opening to the discharge opening. With high viscosity and heterogeneity of components, the latter do not have time to mix thoroughly in a single pass.

A mixer is known, which includes a support frame, a housing with discharge and discharge openings, a shaft with blades, made of center and peripheral plates mounted on brackets in intersecting planes 2,

The disadvantage of the mixer is the imbalance of the flows of the mixture, resulting in a difference in pressure on the left and right end walls of the mixer. This reduces the intensity of the mixing process.

The purpose of the invention is to intensify the mixing process and increase the durability of the mixer by balancing. relocatable mixture flows.

The goal is achieved by the fact that the central and peripheral plates are installed perpendicular to each other and are arranged along screw

10 lines with the opposite direction of the screw with an aspect ratio of i ± cen li i -

L1

to .. / -

price and

length and width central

15 plates; b is the length and width of the periphery, and

ny plates; at the same time, the peripheral plates are directed toward the unloading side from 20 versts.

FIG. 1 shows a mixer, a general view; Fig 2 is the same, top view; FIG. 3 is a section A-A in FIG. 2

The mixer consists of a support section 1, on which the housing 2 with the loading 3 and 4 discharge openings are mounted, and the drive 5. Inside the housing 2 on the shaft 6 are fixed with the help of brackets 7 blades consisting

Claims (1)

30 of the central plates 8 and the peripheral plates 9, the Plates 8 and 9 are installed perpendicular to each other. In their entirety, the plates 8 form a central intermittent screw booster 10, and the plates 9 form a peripheral windrower 11, the direction of the turns of the screw boosters 10 and 11 directly opposite. The mixer works as follows. Inside the housing 2, through the loading opening 3, the components of the mixture are loaded and the drive 5 is turned on. When the All b and the blades are turned clockwise, the particles of the processed mixture move from the action of the plates 8 and 9 along the mixer and around its longitudinal axis in a clockwise direction. two longitudinal flow, directed in opposite directions. These flows are formed under the influence of the tangential composition of the l of these forces p and g. To balance the longitudinal. flows, it is necessary that the path, g, passed by the particles of the peripheral flow per unit of time, be equal to the path of the central flow, i.e. must but to be equal to the volumes of both V or current V, Sg-L, (1) the area and length of the peripheral flow caused by the rotation of the plate is the area and length of the central flow caused by the rotation of the plate 8. cos d: S ip% b cosdL; L be; S-, where оС is the angle between the plates and the longitudinal axis, From equation 1 it follows - d) аС JTr.bj -sinoL - So Kaj ЬЬ, (€, -t- / о, Consequently, (tj / For the same, plate widths The finished mixture is discharged through the discharge opening 4. The product layer left in the bottom of the bottom is removed by rotating the periphery of the 1X plates 9. Due to the fact that the base 9 of the peripheral driver 11 is directed towards the discharge opening 4, during their rotation there is a quick and thorough cleaning of the bottom of the mixer from the remnants of the mixture, the design of the blades mix provides thorough layer-by-layer mixing of components, eliminates dead zones. The technical and economic efficiency of the mixer is determined by an increase in productivity by 1.5–2 times compared with known devices with high product quality and uniform consistency of the resulting mixture... support frame, housing with loading and unloading holes, shaft with blades, made of central and peripheral plates mounted on brackets in cross-sections Xc planes, characterized in that, in order to intensify the mixing process and increase the durability of the mixer by balancing the displacement flows of the mixture, the center and peripheral plates are installed perpendicular to each other and arranged along helical lines with the opposite direction of the screw with aspect ratio fll ± i2 .f. . b.bjL i / fci / k where c. and b is the length and width of the central plates, E and bj are the length and width of the peripheral plates, the peripheral plates of which are directed towards the discharge opening. Sources of information taken into account during the examination 1. USSR author's certificate No. 303090, cl. At 01 F 7/08, .15.05.70. 2, Patent of Germany 1557223, cl. 12 e 4/01, 12.02.71, "./ ± 1 S fue.3