JPS641007Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an electrostatic precipitator.

The duct concentration in the exhaust gas from cement and alumina plants can reach 1000 g/m ³ N. If this were to be directly collected using a known electrostatic precipitator or bag filter, the former would suffer from insufficient current and the latter from clogging, etc. Since dust is generated, a cyclone is often used to remove dust beforehand, but a cyclone has a large pressure loss.

The present invention was proposed in view of these circumstances, and aims to provide an electrostatic precipitator with a large dust collection effect. A pre-dust collection chamber has a horizontal outlet opening for deflecting dust gas and introduces it into the main dust collection chamber, and also has a tapered dust hopper port protruding from the lower end, and a pre-dust collection chamber is attached to the pre-dust collection chamber and has an F-shaped cross section. The present invention is characterized by comprising a dust removal louver device and a gas rectification device comprising a plurality of parallel louver bars, and a hammering means for hammering the dust removal louver device and the gas rectification device to remove adhering dust.

An embodiment of the present invention will be explained with reference to the drawings.
Figure 1 is a partial vertical sectional view of the louver, Figure 2 is a partial perspective view of the louver in Figure 1, and Figures 3A and B are enlarged sectional views of the dust removal louver in Figure 2, each showing a state with dust attached. .

In the above figure, 1 is a dust removal louver, 2 is a louver frame in which a plurality of dust removal louvers 1 are arranged in parallel at appropriate intervals, 3 is a hammering beam, 4 is an anvil, 5 is a hammer for hitting one end of the anvil 4, and 6 is a hammer shaft, 7 is a rectifier, 8 is a rectifier frame, 9 is a hammer beam, 10 is an anvil,
11 is a pre-separation chamber placed in front of the main dust collection chamber 12; 13;
14 is a dust collection electrode device built in the main dust collection chamber 12;
1 is a gas inlet of the pre-separation chamber 11; 15 and 15' are separated dust outlets opening at the lower end of the pre-separation chamber 11;
6 is a separation gas.

In such a device, when the hammer shaft 6 is rotated by a deceleration motor (not shown), the hammer 5 is thrown off and impacts the louver 1 via the anvil 4 and the louver frame 2, as shown in FIGS. 3A and 3B. The dust adhering to the louver 1 is brushed off.

Further, since this hammering force simultaneously applies an impact to the rectifier 7 via the other anvil 10, the rectifier frame 8 and the hammer beam 9, the dust from the rectifier 7 should also be removed. I can do it.

In this way, if you always use the impact cyclone to remove the dust, which is determined by the amount, quality, gas temperature, etc., dust will not accumulate not only in the dust removal louver but also in the rectifier, allowing for good separation of dust-containing gas. and rectification becomes possible.

In short, according to the present invention, the main dust collection chamber has a sideways outlet opening which is placed in front of the main dust collection chamber and which deflects the dust-containing gas introduced downward from the upper end opening and introduces it into the main dust collection chamber, and the lower end is tapered. A pre-dust collection chamber with a protruding dust hopper opening; a dust removal louver device and a gas rectification device each attached to the pre-dust collection chamber and each consisting of a plurality of parallel louver bars each having an F-shaped cross section; and a hammer for the dust removal louver device and gas rectification device. The present invention is industrially extremely useful because it provides an electrostatic precipitator with a large dust collection effect by providing a hammering means for blowing off the adhering dust.

[Brief explanation of the drawing]

FIG. 1 is a partial vertical sectional view showing an embodiment of the present invention, FIG. 2 is a partial perspective view of the dust removal louver shown in FIG. 1,
FIGS. 3A and 3B are enlarged sectional views of the dust removal louver shown in FIG. 2, each showing a state in which dust is attached. 1...dust removal louver, 2...louver frame, 3...hammer beam,
4...anvil, 5...hammer, 6...hammer shaft,
7... Rectifying device, 8... Rectifying frame, 9... Hammering beam, 10...
Anvil, 11...Pre-separation chamber, 12...Main dust collection chamber, 1
3... Dust collection electrode device, 14... Gas inlet, 15, 1
5'...separation dust outlet, 16...separation gas.

Claims (1)

[Scope of utility model registration request] The pre-collection chamber is located in front of the main dust collection chamber and has a horizontal outlet opening that deflects the dust-containing gas introduced downward from the upper end opening and introduces it into the main dust collection chamber, and also has a tapered dust hopper port protruding from the lower end. a dust chamber, a dust removal louver device each attached to the pre-dust collection chamber and consisting of a plurality of parallel louver bars each having an F-shaped cross section, a gas rectifier installed in parallel behind the dust removal louver device, and the dust removal louver device and the gas An electrostatic precipitator characterized by comprising: hammering means for hammering a rectifier to remove adhering dust.