SU814424A1 - Method of mixing materials - Google Patents

Description

one

The invention relates to mixing, flowing, flowing, fine-grained and powdered materials and can be used in the chemical, food and construction industries.

There is a known method of mixing materials in a pulsating eg.cctric field of capacitors, the surface of the plates of which is made curved

However, the known method is not effective when mixing bulk materials.

There is also known a method of mixing materials in air, including the supply of the initial components to the interelectrode space of the corona and collecting electrodes.

However, this method is difficult to implement, as it requires the selection of electrical parameters, precluding the deposition of components on the electrodes.

The purpose of the invention is to simplify the process.

The goal is achieved by introducing into the interelectrode space close to the electrodes

a device made of a dielectric material, the dielectric constant of which is larger than the dielectric constant of the air environment, and an alternating current is applied to the electrodes to provide a discharge between the internal surfaces of the device.

In this case, the discharge is excited at a intensity of 3-8 kV / cm.

The drawing shows a diagram for implementing the method.

The device contains bins 1 and 2 for the materials to be mixed, channel 3, the walls 4 of which are made of a dielectric material. On the outer side of the walls 4 are installed electrodes 5, connected to the transformer 6.

The device works as follows.

The mixed materials from the respective bins 1 and 2 enter the channel 3. When the potentiator is supplied from the transformer 6 to the electrodes 5, an alternating electric field is created in the channel 3. Since the dielectric constant of the wall material is several times greater than the dielectric constant of air in channel 3, the field is much stronger than in wall 4. The voltage on the transformer is set sufficient to excite ionization processes in the channel volume (average strength 3-8 kV / cm). A short-acting spark begins at the walls of the channel and reaches the opposite wall. These bits are not closed between the electrodes 5, but exist only in channel 3 and are partial bits.

Partial discharges occur simultaneously over the entire height of channel 3 and their direction of action is constantly changing. Partial discharges turbulent the air, the vortices of which entrain particles of the materials being mixed and lead to their intensive mixing.

Claims (1)

1. A method of mixing materials in an air environment, which involves feeding source components into the interelectrode space, characterized in that, in order to simplify the process, a device made of a dielectric material, the dielectric constant of which is greater than the dielectric constant, is introduced close to the electrodes alternating current is supplied to the electrodes by a voltage that provides discharges between the internal surfaces of the device. 2, the method according to claim 1, characterized in that the discharges excite a intensity of 3-8 kV / cm. Sources of information taken into account in the examination 1. USSR author's certificate as per W 2002172 / 23-26, cl. B 01 F 3/00, 1974. 2, USSR Author's Certificate No. 143343, .kl. B 28 C 5/02, 1961.