DE1407503A1 - Spray electrodes for electrostatic dust collectors - Google Patents

Description

P 3Λ 07 503.7 May 29, 1968

Aktiebolaget Svenska Pläktfabriken in Nacka / Sweden

Spray electrodes for electrostatic dust collectors

The present invention relates to a spray electrode system for electrostatic precipitators in which the electrode units are arranged in parallel rows and each spray electrode consists of a stiffened, substantially flat plate provided with protruding spray tips consists.

Documents (Art. 7 f I Paragraph 2 No. Τ Sentence 3 of the Anicrungsaea. V. 4,9.,...

809809 / Ü975

1A07503

The degree of dedusting of such separators is. dependent & g on the speed of the gas to be dedusted, on the length of the gas path in the electric field »that applied Voltage and the spray effect of the spray electrodes.

In the past, such electrodes were provided with serrated strips or individual tips to ensure the spraying effect of the To improve electrodes. However, the toothed ribbons or tips had to be applied to the electrodes in separate operations be welded on, which in addition to hard work also raised corrosion problems at the welds.

Since separators of the type described above are usually also provided with periodically operating knocking devices, Requirements are also placed on the strength and elasticity of the electrodes.

The aim of the present invention is to produce electrodes from the thinnest possible sheet metal using the simplest of manufacturing methods with an optimal spray effect to produce a high

and
Have strength / do not pose any corrosion problems.

This is achieved according to the invention in that each electrode plate is bent over at both of its longitudinal edges is that there is a stiffening strip at each longitudinal edge of the plate, which is substantially at right angles

809809 / Ü975

extends to the plane of the plate and that along the bend line this stiffening strip is punched out of the sheet material and pointed spray tabs to form approximately perpendicular protruding to the plate plane, in the plane of the stiffening strips lying spray tips are bent out of the bend.

Furthermore, it is advantageous that the free edge of the two stiffening strips is bent back and that too along this bend line, pointed spray tabs are punched out of the sheet material and bent out of the bend are directed opposite to those spray rags from the bending of the stiffening strip are bent out.

The following is for further explanation and for the better Understanding an embodiment of the invention is described and explained in more detail in the drawings.

Pig. 1 shows a schematic section through the electrostatic Dust separator with the arrangement of the spray electrodes and the collecting electrodes;

Fig. 2 shows a section through a spray electrode in the plane II-II of Fig. 1;

9.-0?

Pig. 3 shows a side view of the spray electrode;

FIG. 4 shows a section through the spray electrode in FIG Level IV-IV of FIG. 2.

In Fig. 1, an electrostatic dust collector 1 is shown schematically, which consists of a housing 2, with an inlet 3 for the dust and suspended particles to be cleaned gas and an outlet 4 for the purified gas is provided. Inside the electrostatic dust collector for a horizontal gas flow is constructed, a number of stiffening bands or strips are provided in parallel rows Precipitation electrodes 5 arranged. Between these collecting electrodes 5 are made of a flat plate manufactured spray electrodes 6 are used, which are bent at their longitudinal edges so that these longitudinal edges are perpendicular Form stiffening strips standing to the electrode plane.

Triangular spray tabs 7 are punched out on the top and bottom of these stiffening strips of the spray electrodes 6 and bent out so that they lie exactly in the plane of the stiffening strips.

- 5 - Claims

0 9 8 0 9. · 0 9 7 G

Claims (1)

1 * 07503-5 - claims 1. Spray electrode system for electrostatic precipitators, in which the electrode units in parallel Rows are arranged and each spray electrode consists of a stiffened, equipped with protruding spray tips, consists essentially of flat plate, characterized in that each electrode plate on its two longitudinal edges are bent so that a stiffening strip is produced on each longitudinal edge of the plate, which extends essentially at right angles to the plane of the plate and that along the bending line of this stiffening strip Pointed spray tabs (7) punched out of the sheet material and formed approximately perpendicular to the plane of the sheet protruding spray tips lying in the plane of the stiffening strips are bent out of the bend 2 · spray electrode system according to claim 1, characterized in that the free band of the two Stiffening strip is bent back, and that also point along this bending line from the plate material Spray tabs (7) are punched out and bent out of the bend, which are opposite to those spray tabs that are bent out of the bend of the stiffening strip New subject 809809/0975