JPH1058326A - Bulk removing device for recovery shot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure separation between shot and a bulk by disposing a perforated chute which permits shot to pass therethrough and does not permit the bulk to pass therehthrough with such an inclination not to drop the bulk in a position right under release of shot, and making the lower end part of the perforated chute face to the upper end part of a perforated trough. SOLUTION: Recovered shot mixed with a bulk carried upward by a bucket conveyer 1 is released from the upper end part to a perforated chute 15, and while sliding, most of shot passes through the holes of the perforated chute 15 to drop in a shot reservoir 5. The bulk and a little shot are supplied into the perforated trough 10 rolled by a normal and reverse rotating motor 8 as an oscillating driving machine, and shot is passed through the holes of the perforated trough 10 by rolling to drop in the shot reservoir 5. The bulk which can not pass through the holes is promoted in sliding of the inclined trough to drop in the bulk receiving chamber 6 from an opening of the perforated trough and be discharged from a bulk discharge pipe 17. Thus, screening between shot and the bulk can be secured so as to prevent staying of bulk.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recovering shots, which are shot materials after blasting a product in a shot blasting facility, and reusing the shots. The present invention relates to a device for removing coarse particles such as rust chips and lump of sand.

[0002]

2. Description of the Related Art Conventionally, in a shot blasting facility, in order to take out a coarse shot from a collected shot, a perforated plate is inclined to a position immediately before the collected shot is conveyed upward by a bucket conveyor and put into a shot reservoir. Erected,
The collected shots are discharged onto the perforated plate, and the shots and coarses are sieved. However, a perforated plate that sifts shots and coarses is that if the slope is loose, the coarseness will stay on the perforated plate, and if the slope is too steep, the shot will slide on the perforated plate and will be discharged without being separated Comes out slightly. For this reason, the perforated plate is generally provided with a gentle inclination to ensure the separation of shots. When a large amount of coarse material stays on the perforated plate, an operator removes the coarse material.

[0003]

The above rough removal work is dangerous because the work place is located at a high place, and the blast work must be interrupted during the rough removal work, thereby lowering productivity. There was a problem. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a roughing device for collecting shots that ensures separation of shots and coarses and does not cause the coarses to stay.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a roughing device for collecting shots according to the present invention has a cross section on the outer side of the shot discharge side of a bucket conveyor for conveying and discharging collected shots upward. A perforated trough formed in a semicircular shape or a semi-polygonal shape and connected to an oscillating drive so as to be able to oscillate is disposed to be inclined upward toward the bucket conveyor, and a shot of the bucket conveyor is provided. At the position immediately below the discharge, a perforated shot that allows a shot to pass and does not pass the coarse is disposed with an inclination that allows the rough to slide down, and a lower end portion of the perforated shot is the perforated. It is the upper part of the trough.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. A shot collection cabinet 3 is connected to an upper portion of a shot discharge side of a conveyor cabinet 2 surrounding a bucket conveyor 1 that conveys and discharges the collected shots upward. The lower half of the shot collection cabinet 3 is a partition plate 4
The right side is defined as a shot reservoir 5 and the left side is defined as a rough receiving chamber 6. A forward / reverse rotation motor 8 as a rocking drive is slightly inclined upward and downward via a mounting bracket 7 outside the rough receiving chamber 6 in the shot collection cabinet 3. A drilling trough 10 is connected to a rotating shaft 9 of the motor 8.

The drilling trough 10 has the following configuration. That is, a trough-like trough having a semicircular shape (or a semi-polygonal shape) in cross section is formed by a perforated plate 12 having a large number of holes 11 through which a shot can pass, and a base end portion. Is fixed to a mounting plate 14 having an opening 13 in the lower half. Further, the opening 13 of the mounting plate 14 is located above the rough receiving chamber 6 and the mounting plate 1
Numeral 4 is connected to the rotating shaft 9 of the forward / reverse rotating motor 8 and is disposed so as to be slightly inclined upward toward the bucket conveyor 1 as a whole. It is to be noted that the slope of the well-lighted trough 10 is set such that the trough 10 cannot slide down by itself when the trough 10 is stopped, but can slide down when the trough 10 swings. In addition, at the position directly below the shot discharging side of the bucket conveyor 1 in the shot collecting cabinet 3, a hole-piercing shot 15 having a hole (a slit may be provided) that allows a shot to pass and that does not allow a coarse passage is provided. It is arranged with a rough slidable slope, and its lower end is inserted into the upper end of the perforated trough 10 to face it. In the figure, reference numeral 16 denotes a shot supply cylinder, and 17 denotes a rough discharge pipe.

The operation of the above-described apparatus will be described. The roughly mixed recovery shot conveyed upward by the bucket conveyor 1 is a holed shot 1 from the upper end.
Most of the shots pass through the holes of the perforated shot 15 and fall into the shot reservoir 5 while sliding down to the shot 5.
On the other hand, coarse and some shots are supplied into a hole trough 10 which is oscillated laterally by a forward / reverse rotating motor 8 as an oscillating driving machine. Fall to 5. Further, the coarse which cannot pass through the hole 11 is promoted to slide down the inclined trough, falls into the rough receiving chamber 6 from the opening 13 and is discharged from the rough discharge pipe 17. The shots dropped into the shot reservoir 5 are circulated to the shot projector via the shot supply tube 16 as appropriate. In addition, hole light trough 10
The inclination angle of the mounting bracket 7 or the forward / reverse rotation
If the mounting angle of the table 8 or the like can be adjusted, fine adjustment at the time of installation becomes possible.

[0008]

As is apparent from the above description, the present invention has a structure in which a hole-piercing shoe having a sharp inclination is arranged upstream of a hole-driving trough which is made slidable and has a gentle inclination. Collected shots mixed with coarses can reliably screen the shots and coarses and can eliminate coarse stagnation, eliminating the need for operators to remove coarses. effective.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a view taken in the direction of arrows AA in FIG.

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bucket conveyor 8 Swing drive 10 Drilling trough 15 Drilling shot

Claims (1)

[Claims] 1. A cross-sectionally semi-circular or semi-polygonal cross-section is formed outside a bucket discharge side of a bucket conveyor 1 which conveys and collects shots upward and discharges them.
The trough 10 is connected to the bucket conveyor 1 so as to be capable of oscillating, and is disposed so as to be inclined upward toward the bucket conveyor 1, so that the shot can be passed to a position immediately below the shot discharge of the bucket conveyor 1 and the roughing is performed. A perforated cut 15 is provided with an inclination to allow the coarse to slide down, and a lower end of the perforated cut 15 is connected to the perforated trough 10.
Roughing device for collecting shots, facing the upper end