RU2807239C1 - Device for mixing components in liquid medium - Google Patents

Abstract

FIELD: oil and gas industry.

SUBSTANCE: intended for mixing components in a liquid medium. A device for mixing liquid media includes a cylindrical body with a shaft placed in it, to which radial screw blades are hingedly connected, vertical and radial screw blades are also hingedly connected to each other, a pusher is installed inside the shaft, with the possibility of translational and reciprocal movement, interacting with the short ends upper radial screw blades, the upper end of the pusher is connected to the disk, made with a slope on a conical surface, equal to the amount of axial movement of the short ends of the upper radial screw blades, which rotate the blades in the radial and axial direction relative to the axis of the mixer shaft, screw rods are placed on the housing cover, connected to the plate with the ability to move along them, a support is mounted on the plate in contact with the conical surface of the disk, a spring, the lower end of which rests on the end of the shaft, and the upper end rests on the lower surface of the disk, an electric motor with a gear connected to the gear wheel. At the upper end of the pusher there is a trapezoid-shaped bar, the right end of which has a mass, the balanced mass of a ball joint in contact with the conical surface of the disk fixed motionless on the plate. The vertical left and right helical blades have an opposite helical direction relative to each other, and the radial blades in each row are also made with a helical surface in the opposite direction relative to each other. Through holes are drilled on the shaft along a helical line relative to its axis.

EFFECT: increasing the reliability of the device and the efficiency of mixing the working medium.

1 cl, 1 dwg

Description

The invention relates to devices for mixing components in a liquid medium, intended primarily for periodic apparatus and can be used, for example, in the chemical, petrochemical, food and other industries where required in accordance with the technological process.

A device for mixing in liquid media is known, described in patent RU 2503493 C1 IPC B01F 7/18, published: 01/10/2014. Bull. No. 1.

This device contains a housing with a shaft installed in it, and with the possibility of translational and reciprocal movement of a pusher, on the upper part of which a piston is mounted, located inside the cylinder; radial and vertical helical blades are pivotally connected to the shaft, which are pivotally connected to each other, on the upper part of the cylinder a control wheel is installed, at the end of the screw of which a hinged support is mounted, contacting the upper part of the pusher, and the radial and vertical screw blades with the shaft form a hinged parallelogram system.

The disadvantage of this technical solution is that for the translational and reciprocal movement of the pusher it is necessary to have external sources of movement (gas, compressed air, liquid) for the piston and the associated pusher with bulky starting and control equipment.

The prototype of the proposed device is the technical solution described in patent RU No. 2651169. A method for mixing components in a liquid medium and a device for its implementation. IPC B01 3/08 3/12 7/18, published 04/18/2018. Bull. No. 11.

The device includes a cylindrical body with a shaft housed in it, to which radial helical blades are hingedly connected, the vertical and radial helical blades are also hingedly connected to each other, a pusher is installed inside the shaft, with the possibility of translational and reciprocating movement, interacting with the short ends of the upper radial helical blades differing in that the upper end of the pusher is connected to the disk on the conical surface there is a slope equal to the magnitude of the axial movement of the short ends of the upper radial helical blades, which rotate the helical blades in the radial and axial direction relative to the axis of the mixer shaft; screw rods connected to the plate are placed on the housing cover with the ability to move along them, a support is mounted on the plate in contact with the conical surface of the disk, a spring, the lower end of which rests on the end of the shaft, and the upper end rests on the lower surface of the disk, an electric motor with a gear connected to the gear wheel.

The disadvantage of this technical solution is that the conical disk has an unbalanced mass, which leads to vibration of the mixer shaft and reduces the reliability of the bearing assembly.

Another disadvantage is that the blades are made of screws and when rotating, tangential (circumferential), radial and axial velocities of the particles of the medium occur, which reduces the efficiency of mixing.

The technical problem solved by the proposed invention is the creation of a device for mixing components in a liquid medium with the achievement of the following technical result - increasing the reliability of the device and the efficiency of mixing the working medium.

The specified technical result is solved by the fact that a device for mixing components in a liquid medium, including a cylindrical body with a shaft placed in it, to which radial screw blades are pivotally connected, vertical screw and radial screw blades are also pivotally connected to each other, installed inside the shaft, with the possibility translational-reciprocal motion, a pusher interacting with the short ends of the upper radial helical blades, the upper end of the pusher is connected to a disk on a conical surface made with a slope equal to the amount of axial movement of the short ends of the upper radial blades, which rotate the blades in the radial and axial direction relative to the shaft axis mixer, on the housing cover there are screw rods connected to the plate with the ability to move along them, on the plate there is mounted a support in contact with the conical surface of the disk, a spring, the lower end of which rests on the end of the shaft, and the upper end rests on the lower surface of the disk, an electric motor with a gear , connected to the gear wheel, according to the invention, a trapezoid-shaped bar is installed at the upper end of the pusher, the right end of which has a mass, the balanced mass of a ball joint in contact with the conical surface of the disk fixedly fixed on the plate. The vertical left and right helical blades have an opposite helical direction relative to each other, and the radial helical blades in each row are also made with a helical surface in the opposite direction relative to each other. Through holes are drilled on the shaft along a helical line relative to its axis.

The figure shows a diagram of the implementation of the proposed device for mixing components in a liquid medium, which shows: housing 1, shaft 2, upper radial screw blades 3, lower radial screw blades 4, vertical screw blades 5, pusher 6, disk 7, roof 8, bearing unit 9, screw rods 10, plate 11, electric motor 12, gear wheels 13,14, spring 15, ball bearing 16, trapezoidal bar 17 and through holes 18 made on the shaft along a helical line relative to its axis.

The device operates as follows: the position of the ball bearing 16 is set relative to the disk 7, taking into account the amplitude of the axial movement and the properties of the medium being moved, the electric motor is turned on, the rotation from which is transmitted through the gears 13, 14 to the shaft 2 and the pusher 6, and to the trapezoidal bar 17 and the ball support 16, in contact with the conical surface of the disk, compressing or weakening the force action of the spring 15, on the pusher 6, receiving translational-reciprocal motion and acting on the short ends of the upper helical radial blades 3, which rotate the hinge system of vertical (or inclined) and radial helical blades, in the radial and axial direction from position A to position B and at the same time oscillating the layers of the working medium, due to constant changes in the magnitude and direction of action of the tangential (circumferential), radial and axial velocities of particle movement along the helical surface of vertical and radial helical blades blades.

The positive effect of the invention is expressed in increasing the reliability of the device, in particular the bearing unit 9, the efficiency of mixing layers of liquid as they move along a helical line and in the through holes of the shaft.

Claims (1)

A device for mixing components in a liquid medium, including a cylindrical body with a shaft placed in it, to which radial screw blades are pivotally connected, vertical screw and radial screw blades are also hingedly connected to each other, a pusher is installed inside the shaft, with the possibility of reciprocating movement, interacting with the short ends of the upper radial helical blades, the upper end of which is connected to the disk, on the conical surface made with a slope equal to the amount of axial movement of the short ends of the upper radial blades, which rotate the blades in the radial and axial direction relative to the axis of the mixer shaft, located on the housing cover screw rods connected to the plate with the ability to move along them, a support is mounted on the plate in contact with the conical surface of the disk, a spring, the lower end of which rests on the end of the shaft, and the upper end rests on the lower surface of the disk, an electric motor with a gear connected to the gear wheel, characterized in that at the upper end of the pusher there is a bar shaped like a trapezoid, the right end of which has a mass, the balanced mass of a ball joint in contact with the conical surface of a disk mounted motionless on the plate, while the vertical left and right helical blades have the opposite direction of the helix relative to each other, the radial helical blades in each row are also made with a helical surface in the opposite direction with respect to each other, and through holes are drilled on the shaft along a helical line relative to its axis.

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