SU967541A1 - Reaction apparatus with vibration mixing - Google Patents

Description

The invention relates to mixing apparatus for mixing homogeneous and heterogeneous systems, and can be used in the chemical, petrochemical, pharmaceutical and other industries.

Known vibrating mixer containing capacity, vibrator and korogshla with movable support rack-w. At the ends of the rocker arms are fixed stock with perforated discs l.

Also known is an apparatus with vibratory mixing, containing capacitance, electric motors with drive shafts, a rod with perforated discs, unbalance vibrators mounted in housings on the base plate, located in one horizontal plane symmetrically with the axis of the rod, and damping springs.

Electromechanical vibrators in these apparatuses, including motors and eccentrics, are placed on a horizontal plate 2,

During the operation of the vibrators, the vibrations are transmitted to the horizontal plate and from it to the rod with perforated discs.

stem oscillations of the rod, reducing the reliability of the device.

In addition, the considerable weight of the vibrating parts of the vibrators, in the casing of which both electric motors and eccentrics and plates are enclosed, causes a decrease in the amplitude of oscillations, and, accordingly, a deterioration in mixing.

ten

Electric motors with eccentrics adjust the vibration, and this dramatically reduces the service life of the motor windings.

The purpose of the invention is to increase the reliability of the apparatus.

The goal is achieved by the fact that in an apparatus with vibration mixing, containing a capacitance, electric motors with drive shafts,

20 a rod with a perforated disc, unbalance vibrators mounted in housings on a base plate, located in the same horizontal plane symmetrically with the axis of the stem, and damping 25 springs, the support plate is placed vertically and rigidly connected to the stem, while the bodies of the vibrators are rigidly connected to each other

Claims (2)

The unbalance vibrators are mounted rotatably in opposite directions. In addition, the electric motors are mounted on fixed supports, and the drive shafts are equipped with double-hinged couplings with a 4-shaft shaft. Damping springs are installed along the rod axis in the upper part of the apparatus. . The implementation of the vertical support plate and its rigid connection to the rod allows to destroy the harmful lateral oscillations of the rod and only generates its vertical reciprocating movement, which increases the reliability of the device. : The rotation of the unbalanced vibro-eccentric is transmitted from stationary engines, placed on separate supports, and on one shaft of the engine and eccentrics p a device consisting of a two-hinged coupling with a splined shaft, having three degrees of freedom and not transmitting vibration from the eccentrics to the engines Motors are not subject to vibration. As a result, the mass of the vibration parts is reduced, and since the amplitude is inversely proportional to the mass of the vibration parts, the amplitude and, accordingly, the intensity of mixing are increased. The immobility of the engines increases their service life, reliability as a parata and extends the range of application (in power, volume, explosion protection, speed). FIG. 1 shows schematically the reaction apparatus with vibratory mixing, general view; in fig. 2, section A-A in FIG. 1. The device includes a vertical tank 1 with a rod 2 and a perforated disk 3. On the lid 4 tanks on special supports 5 electric motors are placed b. On the same shaft with the electric motor b are placed a double-hinged coupling 7 with a splined shaft 8, unbalance eccentrics 9, bearings 10. Eccentrics with bearings are placed in special boxes 11, which are rigidly attached to the support plate 12, rigidly connected to the stem 2., Eccentrics 9 are driven by electric motors 6 in mutually opposite rotation. A damping device 13 with springs 14 is located on the axis of the rod 2 in the upper part of the apparatus. The apparatus operates as follows. The apparatus is filled with a stirred medium. The motors are turned on rotating in opposite directions. The rotation through the splined shaft 8, the double-hinged couplings 7 is transferred to the eccentrics 5. Since the ends with eccentrics 9 and bearings 10 are mounted in boxes 11, which are rigidly connected to the rod 2, during rotation of the motors b, due to unbalanced eccentrics 9, boxes 11, the rod, respectively, the perforated disk 3 receive a reciprocating motion. The rotation of the motors and, accordingly, the eccentrics in the opposite directions from the side destroys the harmful transverse oscillations of the stem and generates only the vertical oscillations of the stem with the disks necessary for mixing. The oscillation frequency depends on the number of revolutions of the engine, and the amplitude depends on the mass and position of the eccentrics, as well as on the mass of all the vibrating parts. The fluid is brought into oscillatory and directional motion in the vessel, i.e. the liquid is mixed in the volume of the apparatus. Placed between eccentrics 9 and motors b of the assembly consisting of a double-hinged coupling 7 with a splined shaft 8 having three degrees of freedom, completely eliminates the vibration of electric motors, put them on separate fixed supports 5, which leads to a decrease in the mass of vibrating parts. Reducing the weight of the vibration parts, respectively, leads to an increase in the amplitude of oscillations, since where A is the amplitude of oscillations; m - mass of suspended parts. With an increase in the amplitude of oscillations, the intensity of mixing increases, which can be estimated as the product, where f is the oscillation frequency. Therefore, mixing in this case is possible to carry out at lower frequencies (20-25 Hz), which will increase the reliability of the device according to the strength characteristics. The absence of vibrations of electric motors leads to an increase in the life of the service; -: their windings, - to increase the reliability of work, the elimination of harmful vibrations on the body of the apparatus. Rotation of electric motors in opposite directions leads to the elimination of alternating loads on the components of the apparatus and, accordingly, an increase in the strength and time of continuous operation of the apparatus. The proposed apparatus allows to significantly expand the range of similar apparatus in terms of volume by choosing motors of any power, in addition, the use of electric motors is possible design that allows you to create devices and conduct. processes for fire and explosion hazardous mixtures. This is especially valuable for expanding and vibroapparatov use range in the chemical and petrochemical industry. The proposed design is particularly effective for large units of unit volumes, the use of which allows to reduce the number of units of technological equipment, the metal intensity of the apparatus and, accordingly, the material costs in the construction of new industries. 1. Reaction apparatus with vibro-mixing, containing capacitance, electric motors with drive shafts, a rod with a perforated disk, unbalance vibrators mounted in cases on the base plate, located in the same horizontal plane of the C axis, and damping springs differing from those that, in order to increase the reliability of the apparatus, the base plate is placed vertically and rigidly connected to the rod, while the bodies of the vibrators are rigidly interconnected. 2. A popl apparatus, characterized in that the unbalance vibrators are rotatably mounted in opposite directions. 3. The device according to claim 1, that is, with the fact that the electric motors are mounted on fixed supports, and the drive shafts are equipped with double-hinged couplings with a splined shaft. 4. The device pop. 1, which differs from the fact that the damping springs are installed along the axis of the rod in the upper part of the apparatus. Sources of information taken into account during the examination 1. USSR author's certificate No. 435842, cl. At 01 F 11/00, published 1972. 2. USSR author's certificate number 364336, cl. At 01 F 11/00, published 1971.