JPS6140445B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention provides a method for handling sediment and
This invention relates to a floating matter processing device.

In the sedimentation tank of a sewage treatment plant, it is necessary to scrape up floating matter in addition to collecting settled sludge, and conventional treatment equipment has a primary tank for collecting settled sludge, as shown in Figure 1. Consisting of a treatment mechanism 1 and a second treatment mechanism 2 that scrapes up floating matter S, the floating matter S generated in the pond is scraped up to near the second treatment mechanism 2 by the upper surface side of the first treatment mechanism 1, and then The treatment mechanism 2 is configured to send floating matter S to a treatment section 3 such as an outflow tub.

However, in the case of a processing device having such a configuration, there is a problem that the first processing mechanism 1 has a large space between it and the second processing mechanism 2 due to its structure, and floating matter accumulates in this part and cannot be removed. There is a problem that there is a gap between the pond wall where the drive mechanism 4 is located and the raking plate 5, making it impossible to completely rak the pond.

The present invention was proposed to solve these problems, and its purpose is to provide a processing device that can completely scrape up floating matter with a relatively simple mechanism.

The sediment/floating material processing device according to the present invention has a second processing mechanism that sends floating material to a processing section and a first processing mechanism that partially overlap, and the second processing mechanism is moved by moving the scraping plate of the first processing mechanism. The processing mechanism is activated.

The present invention will be described below based on an illustrated embodiment. As shown in FIGS. 3 and 4, it consists of a first processing mechanism 10 and a second processing mechanism 11.

The first treatment mechanism 10 is arranged in the sedimentation tank P, and has a large number of sprockets 12 along the longitudinal direction of the sedimentation tank P.
It consists of a pair of winding members 13 such as a pair of chains endlessly wound around the wheel, and scraping plates 14 attached to the winding members 13 at intervals in the running direction.
A drive motor 15 is connected via 5A.
Further, since the processing gutter 16 is arranged on the downstream side, the downstream side of the first processing mechanism 10 is settled before the processing gutter 16.

Rubber plates 14A are fixed to both ends of the scraping plate 14, and since there is a gap between the scraping plate 14 and the side wall 17 of the sedimentation tank P, leakage of floating matter from this gap is prevented. A leak-preventing rubber plate 17A is provided to protrude from the side wall 17 to prevent leakage, and its end surface is brought into contact with the end surface of the rubber plate 14A. Further, the scraping plate 14 on the upper surface side is supported by the upper guide member 18, and the scraping plate 14 on the lower surface side
is supported by the lower guide member 19. In such a configuration, the settled sludge at the bottom of the settling tank P is collected on the lower surface side, and the suspended matter S is collected on the upper surface side.

The second processing mechanism 11 is arranged above the water surface and is arranged so as to partially overlap with the first processing mechanism 10. This second processing mechanism 11 also has a winding member 21 such as a pair of chains endlessly wound around a large number of sprockets 20 along the longitudinal direction of the sedimentation basin.
and a scraping plate 22 attached to the wrapping member 21 at intervals in the running direction, and is non-driven without a driving source. That is, by moving the scraping plate 14 of the first processing mechanism 10, the scraping plate 2
2 is moved by pressing. Therefore,
As shown in FIGS. 6 and 7, the scraping plates 14 and 2
When the contact state of 2 is released, the next scraping plate 14
The interval is set so that the and 22 are in contact with each other.
Furthermore, as shown in FIG. 4, rubber plates 22A are attached to both ends of the scraping plate 22, and the width thereof is made approximately equal to the width of the sedimentation tank P, so that floating matter S does not leak from both sides. There is.

In such a configuration, the floating matter S is first scraped up by the upper surface side of the first treatment mechanism 10, and then scraped up by the second treatment mechanism 11 and sent to the treatment gutter 16.
sent to.

The shape of the processing gutter 16 may be any shape, and as shown in FIG.
may be provided. Further, as shown in FIG. 3, an overflow trough 23 is provided at the most downstream side of the settling tank P.

Furthermore, as shown in FIG. 8, the second processing mechanism 11
A position adjustment mechanism and a wrapping member tensioning mechanism may be added to the above. In other words, sprocket 2 at both ends
4 and 25 are vertically swingable to adjust their vertical positions to correspond to the water depth, and the intermediate guide sprocket 26 is horizontally swingable to adjust the vertical position of the winding member 2.
Perform the tension adjustment in step 1.

Note that the first and second processing mechanisms 10 and 11 may be configured with a belt and a belt pulley.

Since the processing device according to the present invention has the above-described configuration, it is possible to completely scrape up floating matter with a relatively simple mechanism, and furthermore, it is economical because it uses only one driving source.

[Brief explanation of the drawing]

1 and 2 are a schematic side view and a schematic front view showing a conventional processing device, FIGS. 3 and 4 are a side view and a front view showing a processing device according to this invention, and FIGS. 5 and 6 7 and 7 are partially enlarged views of similar processing apparatuses, and FIG. 8 is a front view showing a modification of the second processing mechanism. 1...First processing mechanism, 2...Second processing mechanism, 3
...Processing section, 4... Drive mechanism, 5... Scraping plate,
10...first processing mechanism, 11...second processing mechanism,
12...Sprocket, 13...Wrap member, 1
4... Chain, 14A... Rubber plate, 15... Drive motor, 15A... Chain, 16... Processing gutter, 16A... Guide plate, 17... Side wall, 17A
... Leak prevention rubber plate, 18 ... Upper guide member,
19... Lower guide member, 20... Sprocket,
21... Wrap member, 22... Scraping board, 22A
...Rubber plate, 23...Overflow trough, 24, 25...
...Sprocket, 26...Guiding sprocket.

Claims (1)

[Claims] 1. Scraping plates are arranged at intervals on a wrapping member arranged in the sedimentation tank and wound endlessly along the longitudinal direction of the sedimentation tank, and the sediment at the bottom of the sedimentation tank is scraped on the lower surface side, A first treatment mechanism configured to scrape up floating matter floating on the water surface on the upper surface side, and a second treatment mechanism disposed on the water surface and further sending the floating matter scraped up by the first treatment mechanism to a treatment section. 1. A sediment/float treatment device for a sedimentation basin, wherein the second treatment mechanism is driven in conjunction with a scraping plate of the first treatment mechanism.