JPS6231122Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a sand collection device in a traveling bucket elevator sand lifter that travels back and forth in a sand settling basin to lift up sand.

BACKGROUND ART Conventionally, a traveling type bucket elevator sand pump has been generally used to collect and remove the sediment deposited on the bottom of a settling basin or the like.
However, with this type of sand pump, the lifting of sand is limited to the width of the bucket, so the bucket elevator must be moved back and forth across the width of the settling basin. Not only a traveling device for reciprocating motion, but also a device for moving it laterally is required, and the time and operation required to make it move laterally makes sand lifting efficiency poor, and it is difficult to cleanly scrape up the sand in the settling basin. It was hot.

This idea was made to improve the drawbacks of the traveling type bucket elevator sand lift machine as described above.A sand collection pipe using an air lift is installed in front of the bucket elevator, and the sand pumping machine uses a bucket elevator to collect sand. By sucking up the sand on the side of the bucket elevator and collecting it in front of the bucket elevator prior to raking, the sand raking in the sand basin can be collected widely and raked, and the traversing device in the sand pump can be used. To provide a traveling type bucket elevator sand lift machine which can simplify the mechanism by eliminating the above, and can be provided at low cost, and which can reliably and efficiently collect and remove sediment.

Hereinafter, embodiments of this invention will be described with reference to the drawings.

In the figure, 1 is a bucket elevator, and like a conventional traveling type bucket elevator sand pump, frames 2, 2, which are formed long in the vertical direction, are attached to a settling basin A.
It is supported by a trolley running along the longitudinal direction, and a horizontal shaft 4 is installed at the lower end of the frames 2, 2, and a pair of guide rollers 5, which roll on the bottom surface 3 of the settling basin A, are connected to the horizontal shaft 4. 5 and chain sprockets 6, 6 are pivotally supported. Chains 8, 8 to which a large number of buckets 7, 7... are attached are wound around the chain sprockets 6, 6, and the frames 2,
It is designed to be transported so that it descends at the rear of 2 and ascends at the front.

Further, support frames 9, 9 are provided at the lower portions of the frames 2, 2 to protrude toward the front or front side of the frames 2, 2, and the support frames 9, 9 include sand collection pipes 10,
10 is installed. This sand collecting pipe 10,1
0 communicates with a compressor (not shown) provided on the truck through piping 11, 11 to constitute an air lift pump, and its suction port 12 is separated from the outside of the bucket elevator 1 and placed on the bottom surface 3. Furthermore, the discharge port 13 is located at a distance above the bottom surface 3 at the front of the bucket elevator 1. The end of the pipe 11 is connected directly above the suction port 12, and pressurized air from the compressor is sent toward the discharge side of the sand collection pipe 10 to remove the sediment on the bottom surface 3 from the suction port 12. The sand is sucked up and dropped from the discharge port 13 to the front of the bucket elevator 1 to collect the sediment.

In sand settling basins that use a bucket elevator sand pump, the bottom surface is generally flat over the entire width, so a device equipped with this invention can also be applied to conventional sand settling basins. However, as shown in the figure, several V-shaped grooves 14, 14... are provided on the bottom of the sand settling basin A, and the bucket elevator 1 is arranged in the groove 14 in the center, and each sand collection It will be more effective if the suction ports 12, 12 of the pipes 10, 10 are made to face the outer groove 14.

In addition, in the above embodiment, the sand collection pipe 1
0 has two on the left and right in front of the bucket elevator 1, but more sand collecting pipes 10 can be installed.
A plurality of suction ports 12 or discharge ports 12 may be provided by branching them.

Next, to explain the operation of this invented device, the bucket elevator 1 reciprocates in the length direction of the settling basin A by the running of the cart to which it is attached, and at this time, the bucket elevator 1 is driven by the chain 6. 7, 7... descend on the rear side of the frame 2, turn around along the sprocket 6, and at that time, the bottom surface 3 of the sand settling basin
The sand on top is scraped off, the frame moves up the front side of the frame 2, and when it is turned again along the other sprocket above the trolley, the scraped sand falls onto a conveying device (not shown) and is carried out of the machine. It is discharged to. When the bucket elevator 1 is traveling or reciprocating, the sand accumulated on the sides of the bucket elevator 1 is sucked up by the sand collection pipe 10 and collected in front of the bucket elevator 7, and the sand is collected in front of the bucket elevator 7. 7, it will be scraped and eliminated.

As explained above, in the device of this invention, a sand collection pipe using an air lift is installed in the front part of the bucket elevator that reciprocates in the sand settling basin, and the bucket elevator Since the sand on the sides of the elevator is sucked up and collected in front of the bucket, just by the reciprocating motion of the bucket elevator, the bucket can lift up the sand that has accumulated over a wide area across the width of the settling basin. In addition to collecting sand in the center of the sand to ensure efficient raking, it is also possible to perform wide-width raking, which eliminates the need for the traditional bucket elevator traversing device. It has many advantages, such as simplified operation, significantly simplified mechanism of the traveling bucket elevator sand pump, and the ability to manufacture it at low cost.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing an embodiment of this invented device, and FIG. 2 is a front view of the same. A...Sand basin, 1...Bucket elevator, 3
... Frame, 5 ... Guide roller, 6 ... Chain sprocket, 7 ... Bucket, 8 ... Chain, 10 ... Sand collection pipe, 12 ... Suction port, 13
...Discharge port.

Claims (1)

[Scope of utility model registration request] The front part of the bucket elevator, which runs back and forth in the longitudinal direction of the sand settling basin, sucks up the sediment on the side of the bucket elevator and collects it in front of the bucket, prior to the sand raking by the bucket. A sand collecting device for a traveling bucket elevator sand lifter, characterized in that a sand collecting pipe is provided.