JPS6035615Y2 - Fine dust removal device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a device for removing fine dust in water.

Conventionally, this type of equipment has a plurality of side plates fixed to a shaft that is pivoted across the waterway, an annular screen is placed between these side plates, and the outer circumferential surface of these annular screens and the water to be treated are connected to each other. It is placed adjacent to a guide board for guiding.

Further, the outermost side plates of the annular screen were arranged with a gap less than the screen mesh width from the inflow channel walls provided on both sides of the guide plate.

Therefore, when processing to remove fine dust from water, there is a problem in that the water to be treated flows out from the gap and the fine dust flows into the treated water.

The purpose of the present invention is to solve the problems of the prior art described above,
An object of the present invention is to provide a fine dust removal device capable of preventing fine dust from flowing into treated water.

In short, the present invention provides a protrusion on the outer periphery of the outermost side plates of the annular screen in order to substantially eliminate the gap between the outermost side plates of the annular screen and the inflow channel wall.
This protrusion is designed to slide on the wall of the inflow channel.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, an inlet 2 is provided at the upper side of the casing 1, and an outlet 3 is provided at the lower side of the casing 1.

The inlet 2 is connected to an inflow channel bottom plate 4, and a guide plate 5 is further fixed to the inflow channel bottom plate 4 by a port 17.

An inflow channel wall 6 is provided above a portion of the inflow channel bottom plate 4 and the guide plate 5, and so as to cover a portion of the outer peripheral surface of the annular screen 7.

The annular screen 7 has a structure in which a plurality of side plates 8 are fixed to a shaft whose both ends are supported across the waterway, and a plurality of annular screens are fixed between these side plates via connecting rods 9. .

A rake shaft 10 is provided on the inner circumferential surface of the screen along the axial direction of the ring, and a rake 11 is swingably provided on the rake shaft 10, and a scraper 12 is provided so as to come into contact with the outer circumferential surface of the screen surface. is provided.

The annular screen 7 is rotated by a driving sprocket 14 synchronized with a driving motor 13 and a driven sprocket 16 rotating via a chain 15.

In addition, in the figure, 18 indicates a fine dust outlet.

Here, the tip of the guide plate 5 (that is, the part adjacent to the annular screen) is formed in a comb-like shape as shown in FIG. The rake 11 is designed to mesh with the rake 11.

Further, a protrusion 8A is provided on the outermost side plates 8 of the annular screen 7 (only one side plate 8 is shown in FIG. 2), and this protrusion 8A is formed on the inflow channel wall as the annular screen 7 rotates. It is designed to slide on the outer surface of 6.

In this fine dust removal device, fine dust such as suspended matter being treated is captured on the surface of the annular screen 7, and the treated water is retained in the lower part of the casing 1 and then discharged from the casing.

The suspended solids captured on the surface of the annular screen 7 are taken out as scum by the scraper 12 from the fine dust outlet.

During such fine dust removal processing, the water to be treated that remains on the guy F plate 5 is prevented from flowing out from the gap between the water channel wall 6 and the side plate 8.

In the above embodiment, the side plate 8 is provided with a protrusion 8A, but a recess may be formed in place of the protrusion 8A, and the outer peripheral edge of the inflow channel wall 5 may slide within this recess. .

As described above, according to the present invention, it is possible to prevent the water to be treated from flowing into the water to be treated, thereby increasing the efficiency of removing fine dust.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of the present invention, and FIG. 2 is a view taken along arrow A in FIG. 4...Inflow channel bottom plate, 5...Guide plate, 6...Inflow channel wall 7...Annular screen, 8...Side plate , 10...Ruki axis, 11...Rake, 12...Scraper.

Claims (1)

[Scope of utility model registration request] A plurality of side plates are fixed at intervals to a shaft whose both ends are supported across the waterway, and a circular screen is placed between these side plates, and the outer circumferential surface of these annular screens is connected to the inlet waterway wall. In the fine dust removal device, which is adjacent to a guide plate covered with A fine dust removal device characterized in that it is configured to slide on the wall of the inflow channel.