JPH0717362Y2 - Settling device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a sand settling device having a function of removing floating foreign substances such as wood chips flowing from a sewer.

[Conventional technology]

At the sewage treatment plant, the sewage that flows in from the sewer is first guided to the sand basin, where sediment and other solid matter that flows in with the sewage are precipitated and sent to the next aeration tank by a sand rake to perform biological treatment. .

And, as this sand settling machine,
There are those disclosed in JP-A-55-47108, JP-A-57-5811 and the like.

[Problems to be solved by the device]

As can be understood from the above description, the conventional settling machine provided in the settling basin only has a function of scooping up and discharging earth and sand and other solid matter settling at the bottom of the pond. However, not only dirty sand, but floating and foreign matter,
For example, large timber such as logs, timber pieces, carcasses of small animals, rags, etc. are mixed, and not only do they not settle,
It will clog the screen of the next dust remover. In addition, huge driftwood can damage machines such as screens. Therefore, these floating foreign matters are manually removed by the operator.

An object of the present invention is to provide a sand settling device capable of easily removing the floating substance by giving the sand settling machine a function of removing the floating substance.

[Means for Solving the Problems]

In order to achieve the above object, the present invention relates to a sand settling device in which a girder traveling on a sand settling is provided with a bucket conveyor for settling sand, which can be traversed on a guide rail arranged along the girder on the girder. The gist is that it is equipped with a traverse carriage and a grab bucket for removing floating foreign matter is provided on the traverse carriage so that it can be raised and lowered.

[Action]

Sedimentary solid matter such as sediment that flows into the sand basin is removed by the bucket conveyor provided in the girder for sedimentation and lifting, and floating foreign matter such as driftwood is combined with the girder and the traverse trolley to set a desired amount on the sand basin. Remove with a grab bucket that can be moved into position. This makes it possible to easily remove huge driftwood.

〔Example〕

 Hereinafter, the present invention will be described with reference to the illustrated embodiments.

In the figure, reference numeral 1 is a sand basin or water channel having a predetermined length, depth and width. Rails R and R are laid above both ends of the sand basin 1 in the longitudinal direction, and girders 2 are placed on the rails R and R. It is installed so that it can run in the right-angle direction between sand basins that are placed side by side.

Further, a plurality of sprocket wheels 3a, 3b, 3c ... Are provided at both ends of the girder 2, and an elevating frame 5 along the pond bottom is arranged below the girder 2.

Then, sprocket wheels 4a, 4b are provided at both ends of the lifting frame 5, and the sprocket wheels 3a, 3b, 3c ...
-The endless bucket conveyor 6 is stretched around 3g and the sprocket wheels 4a and 4b.

The lower side 5b of the elevating frame 5 has the same length as the length of the sand basin, the width of the bucket conveyor 6 is narrower than the width of the sand basin, and the girder 2 is moved laterally to set the entire sand basin 1. Try to rake.

An elevating device for the elevating frame 5 is provided at both ends of the girder 2, and this elevating device adopts a screw type, wire rope type, or other method.

When scooping sediment, first stop the girder 2 at the position for sand scooping, then lower the elevating frame 5 by driving the elevating device until it reaches the bottom of the pond, and then drive the bucket conveyor 6 to drive the pond. When the bucket conveyor 6 slides along the bottom, the sand is sequentially attracted by each bucket, scraped above the pond and dropped on the chute, and the discharge conveyor,
Discharge to the outside of the sand basin 1 via the discharge conveyor.

In this way, by combining the driving and elevating operation of the bucket conveyor 6 and the operation of moving the girder 2 in the lateral direction of the pond, even if the bucket width is narrower than the width of the sedimentation pond, the sedimentation is continuously lifted over the entire pond. It can be done.

Further, as shown in the figure, columns 7, 7 ... Are established at required intervals in the longitudinal direction of the girder 2 as shown in the figure.
The guide rail 8 is supported in the form of an overhang so that it is parallel to the girder 2 and slightly protrudes from one side surface between the upper parts of the guide rail 8 and the guide rail 8 so as to be movable. A hoist crane is adopted for this traverse truck 9,
With the pendant switch, etc.
The glove bucket 10 that is hung up and down is lifted and lowered and opened and closed.

It should be noted that it is desirable to adopt a shape suitable for holding floating foreign matter as the grab bucket 10, but the shape of the grab bucket 10 and the form of the traverse carriage 9 are not particularly limited.

[Effect of device]

According to the present invention, sedimentary solid matter such as sediment that flows into a sand basin can be removed by a bucket conveyer provided in a girder for sedimentation, and floating foreign matter such as driftwood can be removed. It can be removed by a grab bucket that can be moved to any position on the sand basin by combining the girder and the traverse trolley, which can improve the operation efficiency of the sand rake and prevent floating foreign substances. It is possible to prevent the screen from being clogged or broken when it flows into the dust remover in the next step.

[Brief description of drawings]

The drawings show an embodiment of the sand setting device of the present invention. FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a front view. 1 is a sand basin, 2 is a girder, 6 is a bucket conveyor, 7 is a pillar, 8 is a guide rail, 9 is a traverse carriage, and 10 is a grab bucket.

Claims (1)

[Scope of utility model registration request] 1. A sand settling device in which a girder (2) traveling on a sand settling basin (1) is provided with a bucket conveyor (6) for sand settling, along a girder (2) on the girder (2). The guide rail (8) arranged as a unit is provided with a traverse carriage (9) that can traverse freely, and the traverse carriage (9) is provided with a grab bucket (10) for removing floating foreign matter so that it can be raised and lowered. Settling device to set.