SU801852A1 - Electric filter - Google Patents

Description

(54) ELECTROFILTER

one

The invention relates to a technique for cleaning gas (air) media from dust and can be used in particular for cleaning boiler gas.

The closest prototype is a centrifugal electrostatic precipitator consisting of a housing that serves as a cyclone shell, inside of which several concentric cylinders are placed parallel to the central exhaust pipe, which act as collecting electrodes, and coronary electrodes 1 are placed in the middle of the annular gas passages.

The disadvantage of the existing design is that the complication and increase in size does not compensate for the increased deposition effect, and it is also impossible to stably clean the air from dust with large and small electrical resistivity, the need to install a shaking mechanism.

The purpose of the present invention is the continuity of the regeneration of the collecting electrodes, without the shaking mechanism, as well as uninterrupted

transport of the settled dust to the storage bin.

The goal is achieved by the fact that the cylindrical collecting electrode is equipped with an annular dust collector installed in the opposite direction to the downward air flow connected through the gallest collection pipe with a hopper and for increasing

0 efficiency of electromechanical coagulation precipitation electrode is made of sequentially placed sections,

Figure 1 shows the electrostatic precipitator,

5 general view; figure 2 is a cross section of the electrostatic precipitator aa in figure 1; Fig. 3 shows a section of the electrostatic precipitator BB in Fig. 2.

The electrostatic precipitator consists of a supply duct 1, tangentially attached to the cylindrical body 2, along the axis of the body 2 is placed the coronary body system 3, which in the upper part is attached to the insulator 4,

5 placed in an insulator box 5, along the housing 2 at a certain distance from each other there are storage bins 6, coaxially with which a ring dust collector is installed: fig 7, which is connected to the storage hopper 8 via the dust collecting channel 8, each bunker provided with a mechanical shutter 9, the high voltage of the coronary switch to the system 3 is supplied through the bushing insulator Yu

The electrostatic precipitator works in the following way.

When high voltage is applied to the electrode system, the dusty air through the supply duct is twisted due to the tangential supply and the dust particles under the action of inertial and electric forces are transported to the surface of the cylindrical body 2. For high speed (10-15 m / s) air the flow in the settling channel, the settled particles are transferred to the dust collecting channel 8, then they enter the storage bin b, where they settle.

The elusive particles are directed back into the active field of the electrostatic precipitator and the process of dust separation from the air flow can be repeated several times depending on the required degree of purification, while it should be noted that during transportation of dust along the precipitation channel, the dispersed particles undergo magnetic-mechanical coagulation.

Accumulated dust is periodically discharged through mechanical shutters 9,

At present, working drawings have been developed, according to which a prototype will be manufactured, a poured test will be carried out

at the Sokolovsko-Sarbaysky mining and processing plant.

The use of electrostatic precipitators will allow fine-dispersed dust to be cleaned with any electrical resistivity at high filtration rates, without the use of agitating mechanisms.

Claims (2)

Invention Formula 1, an electrostatic precipitator including a cylindrical precipitation electrical system of corona electrodes suspended on an insulator, supplying a flue duct, a storage hopper, characterized in that, in order to ensure continuous regeneration of the precipitation electrodes without a shaking mechanism, as well as uninterrupted transport of settled dust in a storage bin, the cylindrical collecting electrode is provided with an annular dust collector installed in the opposite direction to the downward air flow and connected to the storage bin. 2. The electrostatic precipitator of claim 1, wherein it is necessary in order to increase the efficiency of electromechanical coagulation, the precipitation electrode is made of successively placed sections. Sources of information taken into account in the examination 1. Uzhov N.V. Cleaning of industrial gases with electrostatic precipitators, M., Goskhimizdat, 1962, pp.125-127.