JP2003334497A - Wood block removing apparatus in quarrying plant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove blocks or chips of wood mixed in gravels and rough stones using motivity without using manpower in a gravel and crushed stone separation plant. <P>SOLUTION: In a quarrying plant, a rotary drum 4 which is parallel to the transfer direction of a conveyor is bridged over a belt conveyor 1 for transfering a crushing material 15. A plurality of mallets 11 for removing blocks are dispersedly arranged on the outer periphery of the rotary drum 4 radially, and base parts of the mallets 11 for removing blocks are connected to the rotary drum 4 with elastic members 10. The tips of the mallets 11 for removing blocks dash off a block 16 mixed in the crushing material 15 on the belt conveyor 1. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an apparatus for removing wood chips mixed in gravel or rough stone in a gravel sorting and crushed stone sorting plant.

[0002]

2. Description of the Related Art Conventionally, in a gravel sorting and crushed stone sorting plant, when a gravel, a rough stone, a piece of wood, or the like, which is mined from a river or a dam, is mixed with a belt conveyor, a relatively large piece of wood (diameter After removing about 10 to 30 cm), it is transported to a device using the difference in specific gravity by a water flow,
Small pieces of wood and pumice stone are separated and removed from gravel and rough stone.

When a piece of wood is not removed properly, the piece of wood bites into the crusher for rough stones and stops the crusher thereafter, so the work of removing the piece of wood is an important work. However, since the work efficiency is poor if the work is relied on manually, it is desired to mechanize the work for removing a relatively large piece of wood.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to remove wood chips or wood chips mixed in gravel or rough stone by power with no need of manpower.

[0005]

In order to achieve the above object, the present invention is, in a quarrying plant for selecting and crushing collected gravel, above a belt conveyor for transferring quarryed material,
A rotating drum parallel to the transfer direction of the conveyor is installed, and a plurality of wood piece removing rods are arranged radially around the outer periphery of the rotating drum, and the base of each wood piece removing rod has an elastic member interposed between them to rotate the drum. Connect to. Then, the wood chips mixed in the quarry on the belt conveyor are blown off by the tips of the wood removing rods.

It is preferable that the central portion of the belt conveyor is curved and stretched lower than the left and right side portions, and the cross-sectional shape of the belt is formed in a semi-circular shape centering on the rotating drum. Further, it is preferable that the elastic member is a coil spring, and a connecting end portion on the rotating drum side of the elastic member is inclined by 45 degrees toward a center line of the coil spring.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of the wood piece removing device of the present invention, and FIG. 2 is a front view of the wood piece removing device in which a motor and a power transmission mechanism are omitted. Reference numeral 1 denotes a belt conveyor, and the belt 2 has a central portion that is curved so as to project downward from both end portions to have a semicircular cross section (see FIG. 2). Reference numeral 3 denotes a pair of rotary drum mounts, which are mounted so as to straddle the belt conveyor 1. A rotary drum 4 is rotatably supported between the rotary drum mounts 3 and 3. Further, a plurality of coil springs 10 are radially arranged in a distributed manner on the outer periphery of the rotary drum 4. Then, the wood piece removing rod 11 is attached to the tip of the coil spring 10.
Is fixed (FIGS. 3 and 4). In addition, 7 is a motor,
Power is transmitted to a rotary shaft 9 fixed to the center of the rotary drum 4 via a power transmission belt 8.

The wood piece removing rods 11 are appropriately fixed by adjusting their positions in consideration of the distance between the wood piece removing rods 11 adjacent to each other. Further, when the wood piece removing rod 11 is detachably connected to the tip end portion of the coil spring 10 via the connecting cylinder 5 (FIG. 8), even when the wood piece removing rod 11 is worn and shortened, only the wood piece removing rod 11 is provided. Exchange will improve. In addition, 6 is a screw bolt for fixing the coil spring 10 and the wood piece removing rod 11.

Further, the connecting end portion of the coil spring 10 on the rotary drum side is not immediately erected, but is formed to be inclined after being inclined by 45 degrees toward the center line of the coil spring as shown in FIG. Furthermore, the wood removal rod 11 and the belt 2
The interval between and is appropriately determined according to the size of the piece of wood to be removed and the size of the gravel not to be removed, for example, smaller than the diameter of the piece of wood and larger than the diameter of the gravel.

In the wood chip removing device constructed as described above,
The belt 15 conveys the mined material 15 mixed with gravel, rough stones, wood chips, etc. mined from rivers and dams. Next, when the quarry 15 moves below the rotating drum 4, the quarry 15 comes into contact with the rotating wood piece removing rod 11. The large piece of wood 16 comes out of the belt 2 after coming into contact with the wood piece removing rod 11 (FIG. 5).
Although the rough stone 17 having a large specific gravity comes into contact with the rough stone 17 once, the spring 10 to which the wood chip removing rod 11 is attached bends (FIG. 6) and is not swept out and moves on the belt 2 as it is. Also, gravel 12
A small piece of wood 13 or the like comes into contact with the wood piece removing rod 11 at one end, but during the rotation of the wood piece removing rod 11, it falls from the gap between the belt 2 and the tip of the wood piece removing rod 11 and is not removed from the belt 2 ( (Fig. 7). As described above, only the large piece of wood 16 is removed from the belt 2. The removed piece of wood 16 is
As shown in FIG. 2, a wood piece discharging belt conveyor 14 is installed side by side and conveyed.

In the above embodiment, the wood piece removing rod 11
The coil spring 10 is attached to the tip of the coil spring 10. However, the present invention is not limited to this, and may be attached to the tip of an elastic member having a predetermined elasticity, such as a leaf spring or a rubber tip. May be attached. Further, although the belt 2 is curved in the above embodiment, the belt 2 is not limited to this and may be flat. However, if the belt 2 is made flat, the rough stones and gravel that have come into contact with the wood chip removing rod 11 will roll, and the belt 2
It may be removed from above, so it is better to bend it. Furthermore, in the above embodiment, the rotary shaft of the rotary drum is arranged in parallel with the traveling direction of the belt, but the present invention is not limited to this, and it may be arranged on the belt. However, for the same reason that the belt is curved, as shown in FIG. 2, the rotary shaft of the rotary drum may be arranged parallel to the traveling direction of the belt. Also, a piece of wood removing rod 1
If 1s are arranged in only one row, there is a risk that they will not come into contact with the piece of wood 16, so multiple rows may be provided as shown in FIG.

[0012]

In summary, according to the present invention, a rotary drum, which is parallel to the transfer direction of the conveyor, is installed above a belt conveyor for transferring quarry, and a plurality of wood chips are radially removed on the outer circumference of the rotary drum. While distributing and deploying the rods,
The base of each wood piece removing rod is connected to the rotary drum with an elastic member interposed. Therefore, after a large piece of wood comes into contact with the wood removal rod,
Swept out of the belt. The rough stone having a large specific gravity once contacts the wood piece removing rod, but the elastic member attached with the wood piece removing rod bends and is not swept out, and moves on the belt as it is.
Further, gravel, small pieces of wood, and the like come into contact with the wood piece removing rod at one end, but during the rotation of the wood piece removing rod, they fall from the gap between the belt and the tip of the wood piece removing rod and are not removed from the belt 2. By the above, only a piece of wood larger than the belt can be removed.

Further, when the central portion of the belt conveyor is curved and stretched lower than the left and right side portions, and the cross-sectional shape of the belt is formed in a semi-circular shape centered on the rotating drum, it is originally removed from the belt. It eliminates the risk of undesired rough or gravel coming into contact with the wood removal rod and rolling away. Further, when the elastic member is a coil spring and the connecting end portion on the rotating drum side is inclined 45 degrees toward the center line of the coil spring, the coil spring is less likely to be damaged even if a strong force is applied to the wood piece removing rod.

[Brief description of drawings]

FIG. 1 is a side view of a piece of wood removing device.

FIG. 2 is a front view of the wood chip removing device in which a motor is omitted.

FIG. 3 is a view showing a connected state of the wood piece removing rod and the rotary drum.

FIG. 4 is a development view of a rotary drum.

FIG. 5 is a view for explaining the action of removing a piece of wood with a piece of wood removal rod.

FIG. 6 is a view for explaining the action that the wood piece removing rod does not remove rough stones.

FIG. 7 is a view for explaining the action that the wood piece removing rod does not remove gravel.

FIG. 8 is a view showing a connected state of the wood piece removing rod and the coil spring.

FIG. 9 is an enlarged front view of a coil spring.

[Explanation of symbols]

1 belt conveyor 2 belts 4 rotating drum 9 rotation axis 10 coil spring 11 Wood removal rod 15 quarry 16 large pieces of wood

Claims (3)

[Claims] 1. In a quarrying plant for sorting and crushing collected gravel, a rotary drum which is parallel to the transport direction of the conveyor is installed above a belt conveyor for transporting quarry material, and a plurality of radial drums are radially provided on the outer circumference of the rotary drum. The wood piece removing rods are distributed and arranged, and the bases of the wood piece removing rods are connected to the rotary drum through the elastic member, and are mixed with the quarry on the belt conveyor by the tips of the wood piece removing rods. A wood chip removing device that is designed to bounce off wood chips. 2. The central portion of the belt conveyor is curved and stretched to be lower than the left and right side portions, and the cross-sectional shape of the belt is formed in a semi-circular shape centering on the rotating drum. 1. The wood chip removing device according to 1. 3. The piece of wood according to claim 1, wherein the elastic member is a coil spring, and a connecting end of the rotating member on the rotary drum side is inclined by 45 degrees toward a center line of the coil spring. Removal device.