JP2729590B2 - Discharge device with sieve for adhesive raw material and method for discharging sieve from adhesive raw material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispensing apparatus with a sieve for an adhesive material and a method for dispensing an adhesive material sieve suitable for use in coarse scalping of raw materials such as ore and limestone. More specifically, the present invention relates to a dispensing apparatus with an adhesive material sieving machine and an adhesive material sifting dispensing method capable of preventing adhesion of powder by simultaneously vibrating a sieving and dispensing rotary roller. It is.

[0002]

2. Description of the Related Art Raw materials such as limestone are sieved after being mined and then finely crushed to finish products. Conventionally, the sieving and dispensing of the raw material, particularly immediately after mining, has been performed by a comb-shaped sieve (grizzle river) or a mesh-shaped sieve. This sieving step also plays a role in extracting powder such as mud and clay contained in the raw material. If the raw material contains a lot of powder such as mud and clay, the crushing efficiency of the raw material is reduced due to the buffering action of the powder when crushing the raw material, or the crusher is used to crush the raw material. Since there is a risk of getting into the gaps between each component of the equipment and causing a failure,
It is necessary to extract these powders.

[0003]

However, in a conventional grizzly river or mesh screen, powder contained in the raw material adhering to the grizzly river or mesh is scraped off with a stick or the like. Depending on the amount of water, it is unavoidable that the powder adheres, and there is a problem that the sieving performance is remarkably deteriorated and the equipment at the subsequent stage is broken.

[0004] Therefore, an object of the present invention is to solve the above-mentioned problems, and it is necessary to prevent the powder from adhering to lower the sieving performance or to prevent the powder from flowing to the subsequent equipment and causing a failure. An object of the present invention is to provide a dispensing device with a sieve for an adhesive raw material and a method for dispensing an adhesive raw material that can be prevented.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to provide a hopper for accumulating and discharging a raw material supplied from the outside, a pan deck for conveying the raw material discharged from the hopper, and a pan deck . a rolling screen in which a plurality of rotating rollers for sieving the material carried by the Pandekki <br/> are arranged at predetermined intervals are integrated, and oscillating means for vibrating said rotary roller and said Pandekki The rotating roller on the inflow side of the raw material
From the oscillating means to the discharge side of the rotating roller.
At least one of the vibration frequency and the amplitude is changed .

The above object of the present invention is to provide an externally supplied
Pan deck that vibrates the raw material by means of supplying the raw material
And then flow the raw material on the pan deck.
At least one of the frequency and amplitude from the input side to the discharge side
Have multiple rotating rollers that gradually increase and vibrate
Supply the raw material on the roll screen, and
Characterized by sieving the raw material
This can be achieved by a raw material sieve dispensing method .

[0007]

[0008]

[0009]

In the present invention, since the rotating roller of the roll screen vibrates, a combined action of the rotating motion and the vibration works, and the friction caused by the relative motion between the raw material sent from the pan deck to the roll screen and the rotating roller increases. As a result, powder components such as mud and clay contained between the raw materials or adhering to the raw materials in the raw materials are surely separated from the raw materials and sieved.

Further, since the pan deck and the roll screen are integrated, the oscillating means can be shared and the configuration can be simplified. Furthermore, the vibration of the rotating roller is
By appropriately changing or changing the amplitude from the inflow side to the discharge side of the raw material (along the flow direction of the raw material), it is possible to perform an accurate sieving operation applied to the physical properties of the raw material. In addition, the raw material is surely sieved to the discharge side and discharged.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a dispensing apparatus with a sieve for an adhesive material and a method for dispensing an adhesive material sieve according to the present invention will be described in detail with reference to FIGS. 1 is a plan view showing a dispensing apparatus with a sieve for an adhesive material according to the present invention, FIG. 2 is a view as viewed from the direction of arrow A in FIG. 1, FIG. 3 is a view showing a method of driving a rotating roll, and FIG. FIG. 5 is a view for explaining the method of discharging the adhesive raw material sieve by the discharging device with a sieve for the adhesive raw material, and FIG. 6 is a sectional view showing another embodiment.

As shown in FIG. 1, the dispensing apparatus 1 with an adhering raw material sieve according to the present invention is provided with a hopper 11 for accumulating and discharging a raw material 37 (FIG. 5) supplied from the outside. A pan deck 12 is disposed on the discharge side. The pan deck 12 is for transporting the raw material 37, and a flat plate 14 having a raised rear end is mounted on a lattice-shaped frame 13.

On the discharge side of the pan deck 12, a roll screen 15 is arranged. Roll screen 15
Is for sieving and discharging the raw material 37, and a plurality of rotating rollers 16 are arranged at predetermined intervals. These rotating rollers 16 are rotatably mounted directly or via bearings on side portions 17 and 18 of the pan deck 12 that support the frame portion 13. In order to prevent the raw material 37 on the pan deck 12 and the roll screen 15 from dropping to the side, the upper ends of the side portions 17 and 18
And higher than the roll screen 15.

Each rotating roller 16 of the roll screen 15
Is provided with a plurality of circumferential grooves 19 having a predetermined width. The circumferential groove 19 of each rotating roller 16 is aligned along the flow direction of the raw material 37, and the adjacent rotating rollers 16, 1
The gap 20 formed by the 6 circumferential grooves 19 serves as a mesh. That is, the ore in the raw material 37 larger than the gap 20 is conveyed to the end by the rotating roller 16 and discharged, and the ore and powder such as mud and clay in the raw material 37 smaller than the gap 20 pass through the gap 20. It is sieved by falling through.

As shown in FIG. 2, eccentric plates 21 and 22, which constitute a part of the oscillating means, and other mechanisms (not shown) are arranged on the sides 17 and 18 on both sides of the pan deck 12 and in the vicinity thereof. These eccentric plates 21 and 22 have, for example, rotation centers at positions shifted from the center of gravity 39,
8 are attached to both ends of a rotating shaft 23 rotatably attached to the rotating shaft 8. A pulley 24 is mounted outside the eccentric plate 22 on one side of the rotating shaft 23.

On the other hand, a motor 25 is arranged at the lower left of the eccentric plate 22 in the figure. On the rotating shaft 26 of the motor 25,
A pulley 27 is attached. A belt 28 is wound around a pulley 24 of the center shaft 23 and a pulley 27 of the motor 25. Thus, the eccentric plates 21 and 22 are driven to rotate by the motor 25. Since the center of rotation of the eccentric plates 21 and 22 is displaced from the center of gravity 39, the rotation of the eccentric plates 21 and 22 causes vibration on the side portions 17 and 18, and thus on the rotating rollers 16 of the pan deck 12 and the roll screen 15 integrated with the pan deck 12. I do.

In the above description of the oscillating means and the structure shown in the drawings, the vibration is actually a rotary motion, and the material is not properly discharged, so that the vibration is converted to a linear motion. This is configured so that, for example, the rotary shaft is divided into two shafts, and they are rotated in opposite directions via gears or the like so as to generate a linear motion. As shown in FIG. 1, the rotating roller 16 on the outflow end side of the roll screen 15
, A motor 29 disposed outside the side portion 18 is connected via a universal joint, for example, a universal joint 30. By using the universal joint 30, even if the rotating roller 16 vibrates, the rotating force of the motor 29 can be reliably transmitted to the rotating roller 16.

As shown in FIG. 3, one sprocket 31 or two integrated sprockets 31 are provided at each end of each rotating roller 16.
The sprockets 32 and 33 are provided. That is, the rotating roller 16 at the inflow end is provided with one sprocket 31 only on one side. The second rotary roller 16 from the inflow end is provided with one sprocket 31 only on the side opposite to the inflow end rotary roller 16. The rotating roller 16 on the outflow end side is provided with one sprocket 31 on each side. The intermediate rotating roller 16 other than the above is provided with two sprockets 32 and 33 on one side only at an appropriate interval. These sprockets 32 and 33 are provided on the same side for every other rotation roller 16.

One sprocket 31 of the rotation roller 16 on the outflow end side which is directly driven to rotate by the motor 29, in this example, a lower sprocket 31 in the figure, and a sprocket 32 inside the rotation roller 16 which is placed alone. , And a chain 34 are wound. A chain 34 is wound around the sprocket 33 outside the sprocket 32 and the sprocket 31 of the rotating roller 16 that is placed one.

A chain 34 is wound around the other sprocket 31 of the rotating roller 16 on the outflow end side and the sprocket 32 inside the adjacent rotating roller 16. Sprocket 33 outside this sprocket 32
And the sprocket 3 on the outside of the rotating roller 16 on which one piece is placed.
3, a chain 34 is wound. Further, a chain 34 is wound around the sprocket 32 inside the sprocket 33 and the sprocket 31 of the rotating roller 16 on the outflow end side.

The number of teeth of the sprockets 31, 32, 33 is set so that the number of rotations gradually increases from the rotation roller 16 on the inflow end to the rotation roller 16 on the outflow end. As a result, the raw material 37 is
Can be paid out reliably. Each rotating roller 16
4, a cleaner 36 for holding a predetermined gap 35 between the rotary roller 16 and the rotary roller 16 is arranged as shown in FIG. The cleaner 36 is formed in a comb shape with a flat plate.
Powder such as mud and clay adhering to the rotating roller 16 is
It is forcibly scraped off by the cleaner 36. Gap 3
5 can be easily adjusted according to the required particle size of the raw material 37 to be recovered, the raw material moisture, and the like.

Next, the operation of the dispensing apparatus 1 with a sieve for the adhesive raw material will be described. As shown in FIG. 5, the raw material 37 stored in the hopper 11 is discharged to the pan deck 12. The rotation of the eccentric plate 22 causes the pan deck 12 to vibrate in the direction from the lower left side to the upper right side in the figure, whereby the raw material 37 is conveyed to the roll screen 15 side. The transport amount of the raw material 37 of the pan deck 12 can be adjusted by changing the frequency or the amplitude.

Raw material 3 conveyed by pan deck 12
7 is supplied on a roll screen 15. Since the rotation speed of the rotation roller 16 of the roll screen 15 is gradually increased from the inflow side to the discharge side, the circumferential groove 19
The rough in the raw material 37 larger than the gap 20 between them is reliably transported and discharged. The rough or the powder in the raw material 37 smaller than the gap 20 falls from the gap 20 and is sieved to be separated from the rough.

Further, since there is a difference in the number of rotations of the adjacent rotary rollers 16, the ore in the raw material 37 slightly larger than the gap 20 and remaining between the rotary rollers 16 is
Rotate to the opposite side of 6. At this time, the friction between the remaining rough and the rotating rollers 16 on both sides thereof increases,
The corners of the rough are cut off and the rough becomes smaller. As a result, the remaining ore 37 falls from the gap 20 and is removed. Further, due to friction between the rough and the rotating roller 16, powder components such as mud and clay adhered to the rotating roller 16 and the rough are scraped off.

The vibration applied to the pan deck 12 for transporting the raw material 37 is also applied to each rotating roller 16 of the roll screen 15. This vibration causes the raw material 37
In the discharge direction, and imparts rotation and flying motion to the raw material 37. Thus, the rotating roller 16
Is vibrating and rotating, so that the vibration and the rotating motion are combined, the relative motion between the raw material 37 and the rotating roller 16 is increased, and the raw material 37 is sandwiched between the rotating rollers 16, It is possible to prevent powder such as mud and clay from adhering to the raw material 37 and the rotating roller 16. As a result, the dispensed ore hardly contains any powder, so that the powder invades each part of the next step, for example, a crushing device, and breaks down. It is possible to prevent a decrease.

When the amount of the powder contained in the raw material 37 changes, particularly when the amount of fine particles and moisture increases, such a self-cleaning action of the powder cannot be expected, and the adhesion of the powder to the rotating roller 16 increases. In this case, the powder attached to the rotating roller 16 is
Since it is scraped off by the cleaner 36 and is forcibly removed, it is possible to prevent a reduction in sieving performance. As described above, in the dispensing apparatus 1 with a sieve for an adhesive material according to the present invention, the rotating roller 16 of the roll screen 15 used for sieving and discharging the raw material 37 rotates and vibrates. Without stagnation between the rotating rollers 16, sieving and dispensing can be performed reliably. Further, due to the rotation and vibration of the rotating roller 16, the friction caused by the relative movement between the rotating roller 16 and the raw material 37 increases, and the powder attached to the rotating roller 16 is drawn off. Further, the powder that is not scraped off by the raw material 37 is forcibly scraped off by the cleaner 36. Therefore, it is possible to prevent the powder from entering into the respective parts of the crushing device in the next step, thereby causing a failure and preventing the crushing efficiency from being reduced due to the buffering action of the powder.

As described above, the dispensing apparatus with the sieve for the adhesive material and the method for dispensing the adhesive raw material according to the present invention can stably maintain the sieving performance even when the raw material particle size and the moisture content change. Disposal of raw materials and coarse sieving (scalping) are possible. For example, it is applicable to raw materials containing large amounts of earth and sand, clay, and collection of coarse-grained raw materials (raw stones) by discharging and sieving topsoil (stripping soil) and construction residual soil. can do.

In the above-described embodiment, each rotating roller 1
6, the same frequency and amplitude are applied. As shown in FIG. 6, a bearing 39 is attached to the side portions 17 and 18 via a cushioning material such as a rubber 38, and each rotation is performed by the bearing 39. By supporting the rollers 16, the frequency and amplitude applied to each rotating roller 16 can be changed. That is, for example, if the thickness of the rubber 38 is gradually reduced from the inflow-side rotation roller 16 to the outflow-end rotation roller 16, the frequency and the amplitude of the outflow-side rotation roller 16 become larger. Thereby, the dispensing of the raw material 37 can be performed efficiently. As a cushioning material,
An appropriate material other than the rubber 38 can be used.

In the above-described embodiment, the pan deck 12
Although the case where the oscillating means is integrated by integrating the oscillating means and the roll screen 15 has been described, the pan deck 12 and the roll screen 15 may be separated and the oscillating means may be separately provided. Thereby, the frequency and amplitude of the pan deck 12 and the roll screen 15 can be set separately, and the transport amount of the raw material 37 by the pan deck 12 and the sieving and dispensing performance of the raw material 37 by the roll screen 15 are not affected by each other. Can be set separately.

[0030]

According to the dispensing apparatus and the dispensing method of the present invention, the rotating roller of the roll screen for sieving and discharging the raw material vibrates simultaneously with the rotation. The relative motion between the rough and the rotating roller contained in the raw material increases, increasing the friction, preventing the rough stone from being caught and reducing the sieving performance as the powder attached to the rotating roller is scraped off by the rough. Can be prevented.

Further, since the pan deck and the roll screen are integrated, the oscillating means of the pan deck and the roll screen can be shared, and the configuration can be simplified. Further, the frequency or amplitude can be gradually increased from the inflow-side rotation roller to the outflow-side rotation roller, thereby making it possible to reliably discharge ore in the raw material.

[Brief description of the drawings]

FIG. 1 is a plan view of a dispensing apparatus with a sieve for an adhesive material according to the present invention.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a diagram illustrating a driving method of a rotating roller.

FIG. 4 is a view on arrow B in FIG. 1;

FIG. 5 is a diagram for explaining the operation of the dispensing device with a sieve for an adhesive material.

FIG. 6 is a sectional view showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Discharge apparatus with a sieve for an adhesive raw material 11 Hopper 12 Pan deck 15 Roll screen 16 Rotary roller 21, 22 Eccentric plate 25, 29 Motor 30 Universal joint 36 Cleaner 38 Rubber

Claims (2)

(57) [Claims] A hopper for accumulating and discharging a raw material supplied from the outside, a pan deck for conveying the raw material discharged from the hopper, and a pan deck integrated with the pan deck and conveyed by the pan deck . raw material comprising a roll screen in which a plurality of rotating rollers are arranged at predetermined intervals for sieving, and oscillating means for vibrating said rotary roller and said Pandekki, discharged from the rollers of the inlet side of the raw material The times of the side
Of the frequency and amplitude of the oscillation means
A dispensing device with a sieve for an adhesive material, wherein at least one of the devices is changed. 2. The method according to claim 1, wherein the raw material supplied from outside is supplied by a supply means.
Thus, the raw material is supplied to a vibrating pan deck, and thereafter,
From the inflow side of the raw material to the discharge side on the pan deck
And at least one of the frequency and amplitude gradually increases
On a roll screen with multiple rotating rollers that vibrate
The raw material is supplied to the roll screen.
Discharge method for adhesive raw material sieve characterized by sieving
Law.