JPS6124575Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a dust removal device for a bar screen.

Regarding this type of dust removal device, various structures have been proposed in the past to prevent the dust scraped up along the bar screen from spilling into the intake channel and falling, and to discharge it smoothly into the trough. but,
When the endless chain bucket rotates along the upper sprocket wheel, the rotary chute prevents some of the dust in the bucket from spilling into the intake channel. Stay on the fixed chute and win. Moreover, it has the disadvantage of being structurally complex, lacking in strength, and easily damaged.

The present invention was proposed in view of these circumstances, and is designed to prevent the collected dust from spilling and falling into the intake channel, and to prevent the dust falling from the rotating chute from accumulating on the fixed chute. The purpose of the present invention is to provide a bar screen dust removal device equipped with a rotary chute that increases strength and reduces costs by preventing dust removal. In a bar screen dust removal device that scrapes up dust in an intake channel by moving a plurality of buckets installed at approximately equal intervals along the bar screen, each plate has a regular polygonal cross section. The rotating chute is characterized in that it has a regular polygonal prism-shaped rotating chute with fins that protrudes from the corner of the adjacent plate by the same length on the same plane in the direction of rotation, and whose left and right ends are each dammed by an end plate.

An embodiment of the present invention will be explained with reference to the drawings.
FIG. 1 is a sectional view showing the rotary chute.

In the above figure, 1 is a number of flat bars arranged in parallel at regular intervals, 2 is a dust collector, 3 is an upper sprocket, 4 is an endless chain, 5 is a bucket, 6 is a sprocket shaft, 7 is five dust discharge chute plates, 7a is a protruding fin portion of the dust discharge chute plate 7, 8 is a fixed chute that guides the dust collector that falls from the dust discharge chute plate 7 to a trash trough 13, 9 is a guide rail for applying tension to the slack side of the endless chain 4 that is wrapped around the upper sprocket 3, and 10 is a boss 11.
A key for fitting the sprocket shaft 6 to the sprocket shaft 6, 12
Reference numeral 14 denotes a water intake channel. Reference numeral 15 denotes a plurality of arms which are provided radially protruding from the boss 11 and which fasten the dust discharge chute plate 7 to the boss 11. Reference numeral 16 denotes a water intake channel.

In such a structure, the five dust exhaust chute plates 7 are welded to each other so that the cross section forms a regular pentagon, and are fixed to the boss 11 by an arm 12 to form a rotating chute 15 in the shape of a regular pentagonal column. The fins 7a, which are extended protrusions of each dust removal chute plate 7, protrude from the corners of the adjacent dust removal chute plates 7 of equal length in the rotational direction of the rotary chute 15, and The left and right ends are each welded to regular pentagonal end plates (not shown) formed by connecting the tips of the protruding fins 7a.

In such a structure, the upper sprocket 3
When the bucket carts 5 rise along the flat steel 1 as the buckets 5 rotate, each bucket cart 5 scrapes up the dust blocked by the flat steel 1 together with water, and when it reverses along the upper sprocket 3, Dust and water falling from the bucket 5 upstream of the bar screen fall onto the dust discharge chute plate 7 which rotates synchronously, but the fallen dust and water are collected by the fins 7a of the adjacent dust discharge chute plate. This prevents the dust from spilling into the intake channel from between the bucket 5 and the dust discharge chute plate.

Further, when the rotary chute 15 continues to rotate and comes to the downstream side of the bar screen, the dust exhaust chute plate 7
The dust and water accumulated on the fin 7a fall from the preceding fin 7a in the direction of rotation, slide on the fixed chute 8, and fall into the trash trough 13.

At that time, the dust exhaust chute plate 7 in the form of a regular pentagonal column is
Since the dust discharge position from the sprocket shaft 6 is sufficiently above the sprocket shaft 6, the speed of the falling dust becomes sufficiently high by utilizing a large potential energy, so that the dust does not adhere to the fixed chute 7 and stay there. do not have.

In addition, since each dust exhaust chute plate 7 is fixed to the sprocket shaft 6 via the arm 12, boss 11, and key 10, the strength and reliability are improved compared to a structure in which the dust exhaust chute plate is directly welded to the sprocket shaft 6. and can be increased.

Note that the rotating chute is preferably a regular polygonal prism of pentagon or more.

In short, according to the present invention, a plurality of buckets installed at approximately equal intervals between the left and right endless chains stretched between the upper and lower sprocket wheels are moved upward along the bar screen to remove dust from the intake channel. In a dust removal device for a bar screen, each plate having a regular polygonal cross section protrudes from the corner of the adjacent plate by the same length on the same plane in the direction of rotation, and the left and right ends are respectively end plates. Equipped with a rotating chute in the form of a regular polygonal column with fins, which is dammed with
The present invention is industrially extremely useful because it provides a bar screen dust removal device that reduces costs.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Flat steel, 2...Dust guide, 3...Upper sprocket, 4...Endless chain, 5...Bucket, 6...Sprocket shaft, 7...Dust removal chute plate, 7a...Fin part, 8 ...Fixed shoot, 9...
...Guide rail, 10...Key, 11...Boss,
12...Arm, 13...Trash trough, 1
4... Intake channel, 15... Rotating chute.

Claims (1)

[Scope of utility model registration request] A plurality of buckets installed at approximately equal intervals between the left and right endless chains stretched between the upper and lower sprocket wheels are moved upward along the bar screen to scrape up dust in the intake channel. In a bar screen dust removal device, each plate with a regular polygonal cross section protrudes the same length from the corner of the adjacent plate on the same plane in the direction of rotation, and has fins on the left and right ends, each of which is dammed by an end plate. A dust removal device for a bar screen characterized by having a rotating chute in the shape of a regular polygonal column.