PL151677B1 - Device for ripping off collecting electrodes of dry electrostatic precipitators - Google Patents

Description

RZECZPOSPOLITA PATENT DESCRIPTION 151 677 POLAND

OFFICE

PATENT

RP

Additional patent to patent no - Int. Cl. ⁵ B03C 3/76

Reported: 87 12 29 (P. 269826)

Priority - READING

GENERAL

Application announced: 89 07 10

Patent description published: 1991 03 29

Creators of the invention: Stanisław Bach, Henryk Szwed

The holder of the patent: Akademia Górniczo-Hutnicza im. St. Staszica, Krakow (Poland)

Device for ripping off collecting electrodes of dry electrostatic precipitators

The subject of the invention is a device for shaking off collecting electrodes of dry plate electrostatic precipitators.

Devices causing mechanical vibrations on the surface of electrodes are known and used by introducing single shocks due to the impact of a falling hammer on the electrode shaking rod. These are hammers arranged on a common shaft and striking the anvils of the flapping rods connected to the collecting electrodes individually, each hammer striking the anvil of the rod of a different electrode. Such a solution is described in detail in the book by Janusz Lutyński entitled: Electrostatic Dedusting of Gases; WNT Warsaw 1965.

The amount of impact energy transferred to the electrodes should be selected in such a way as to detach the entire dust layer from the electrodes. In the case of dusts with high adhesion to the electrodes, the amount of this energy is large, which significantly affects the durability of the shaking system. There is a rapid wear of the mating elements, i.e. hammers and anvils, cracks of the tapping rods and the electrode suspension elements appear.

The object of the invention is to achieve a significant improvement in electrode fraying efficiency while maintaining high reliability and minimal secondary input.

The essence of the invention in the first version is the mounting of at least two hammering hammers on the shaft over one anvil next to each other, shifted by a slight angle. When the shaft rotates, these hammers fall on the anvil of the rod shaking the electrodes, hitting them one after another.

The essence of the second version of the invention is the attachment to the shaft in a plane perpendicular to it, the arm on which at least two swing hammers are pivoted. During the rotation of the shaft, one hammer falls hitting the anvil, and the next one, within a few seconds, hits the previously fallen hammer - causing another vibration of the electrode raker rod. As a result, effective electrode picking was obtained with reduced energy of a single impact. The device according to the invention is shown in an embodiment in the drawing, in which fig. 1 shows the device in a front view, fig. 2 - in a side view, fig. 3 - in a top view, and fig. 4th version in side view.

151 677

On the shaking rod of the collecting electrode rotating on the shaft 1 above the anvil 2, there are mounted hammers 3, which fall down during the rotation of the shaft. As they fall, they strike the anvils 2 and create an impact causing the dust to detach from the electrostatic precipitator electrodes. The hammers are fixed at a distance corresponding to the width of the anvil 2 and shifted by the angle a, that is, in such a position that they fall at an interval of tenths of a second to several seconds. In the second version of the solution shown in Fig. 4, the hammers 4 are pivoted on a common arm 5 set in a plane perpendicular to the shaft 1. During rotation of the shaft, the rigid arm 5 rotates and the hammer closer to the anvil and the further hammer dropping successively. Thus, a double strike is obtained.

Claims (2)

Patent claims 1. Device for shaking off collective electrodes of dry electrostatic precipitators, consisting of hammers arranged on a common shaft, striking the anvils of the electrode poles, characterized in that over one anvil (2) on the shaft (1) they are mounted next to each other, shifted by a slight angle a, at least two hammers (3) striking the anvil (2) in succession. 2. Device for ripping off collecting electrodes of dry electrostatic precipitators, consisting of hammers arranged on a common shaft, striking the anvils of the electrode rods, characterized in that above the anvil (2) on the shaft (1) is fixed in a plane perpendicular to the shaft (1) arm (5) on which at least two hammers (4) are swingingly, falling successively. Department of Publishing of the UP RP. Circulation 100 copies Price: PLN 3,000