JP2873158B2 - Vibrating sieve machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vibration sieve machine.

[0002]

2. Description of the Related Art Vibrating sieving machines are machines for sifting raw materials such as soil, sand, industrial waste, and grains into those having a certain size or less and those not having such a size. ,
A raw material having a size equal to or less than a certain value that has passed through a mesh of the mesh and a certain size that cannot pass through the mesh by being put on a mesh for sieving provided in the vibrating machine and vibrating the mesh. It can be divided into raw materials of the above sizes.

[0003]

However, even with such a vibrating sieve, the raw materials to be sorted are various, and for example, (1) the amount of input is large and the water content is high. Sorting of coal and coke with high mixing ratio with high and viscous fine particles. (2) A waste sorting and waste asphalt recycling plant with a large amount of input, a high water content, and a viscous topsoil mixture. (3) Sorting of mountain sand having a large input amount, a high water content, and a high mixing ratio of 5 mm or less in the input raw material. (4) Sorting of humus with high water content, low specific gravity, and high viscosity. There are still many raw materials that cannot be sufficiently sorted. Various methods have been devised to select raw materials that are difficult to separate, but a solution has been demanded as an unsolved technical problem.

[0004] The present invention has been made to solve the above-mentioned defects, and an object of the present invention is to be able to reliably screen and sort even raw materials which are difficult to screen. An object of the present invention is to provide a vibrating sieve .

[0005]

A vibrating sieve according to the present invention has the following configuration to achieve the above object. In other words, in the direction in which the raw materials input for sorting flow,
One or more upstream nets and the upstream net
One or more downstream nets provided downstream
Arranged in order, in a vibrating sieve for sieving the raw material, the upstream net is a toncap type net in which the mesh is long open in the flow direction of the raw material, or the mesh is in the flow direction of the raw material. A net having a high opening ratio with respect to the direction in which the raw material flows, such as a harp type net that opens extremely long, so that the tension direction of the upstream net is the same as the direction in which the raw material flows. Stretch . Ma
The mesh on the downstream side has a substantially square mesh.
This is a square type net, and the tension direction of this downstream net
Is the same as the direction orthogonal to the flow direction of the raw material.
It is stretched so that it is in the direction .

[0006] The downstream side mesh is provided with a horizontal strand which is given a tension in a direction perpendicular to the direction in which the raw material flows, and is placed on the horizontal strand in the same direction as the flow of the raw material. A connecting line portion formed of vertical element wires arranged in the direction, and a connecting portion in which intersections where the horizontal element wires and the vertical element wires cross each other are connected to each other are continuous. during the unbound line portion having a non-bonded portion where the intersection is not bound to each other, may be it formed halftone der comprising so as to be located in each of the longitudinal and transverse directions
Absent.

[0007]

[Function] As a net on the upstream side, a toncap type net whose mesh is long in the direction in which the raw material flows, or
Use a net having a high aperture ratio with respect to the direction in which the raw material flows, such as a harp type net in which the mesh opens extremely long in the direction in which the raw material flows, and the tensioning direction of the net is the same as the direction in which the raw material flows. Since the net is stretched in the same direction, the strength of the net is maintained, and the net is opened with a large dimension in the direction in which the raw material flows. Can be easily sieved off.

On the other hand, the downstream net is stretched so that the tension direction of the downstream net is the same as the direction orthogonal to the flow direction of the raw material. It can be easily added in the same direction as the flow direction of the raw materials, and the sieving ability of the vibrating sieve can be easily increased. In addition, since the downstream mesh is a mesh type mesh in which the mesh is substantially square, only the material having a size smaller than the size of the mesh is dropped and the material having a size larger than the size of the mesh is dropped. The size of the raw material dropped from the mesh does not fall, and the size of the raw material is almost uniform, so that only the raw material having a required size can be selected.

Further, the downstream network includes a transverse wire given tension in the direction perpendicular to the direction of the flow of raw material, on the lateral wire, identical to the direction of flow of raw material A connecting line portion formed of vertical element wires arranged in the direction, and a connecting portion in which intersections where the horizontal element wires and the vertical element wires cross each other are connected to each other are continuous. In between, the non-bonded line portion having a non-bonded portion where the crossing portions are not bonded to each other is a net formed so as to be located in each of the vertical direction and the horizontal direction. Since the tapping of the element wire in the vertical direction is allowed, the raw material attached to the mesh is separated from the mesh, thereby preventing clogging and sticking.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a vibrating sieve according to the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the vibrating sieving machine 10 includes a plurality of support bases 1 erected on a lower support base 11.
2 through each supporting spring 14 on the vibrating sieve main body 1
6 is configured to be vibrated on the lower support 11. The drive belt 20 is rotated by the drive of a drive motor 19 disposed on a support base 17 on the front side of the vibrating sieve main body 16 via a spring 18 and the like, and is provided at an upper portion in the vibrating sieve main body 16. By rotating a pair of unbalanced weights (not shown), vibration is applied to the vibrating screen main body 16.

On the upper side of the main body 16 of the vibrating sieve, a diffusion charging device 22 for diffusing and charging the raw material G to be sorted is provided. The raw material G is blown around the rotary blade 24 by rotating the rotary blade 24 by the rotation of the shaft 26, and the raw material G is placed on an upstream net 28 disposed below the rotary blade 24. It is thrown into.

In the case of this embodiment, the vibrating sieving machine 10 comprises two upper and lower nets 28, and two lower and upper nets 30 downstream of the upstream net 28. Probabilistic vibrating sieve equipped. However, the vibrating sieve 10
It is not always necessary to configure the nets 28 and 30 vertically in two stages, and a stochastic vibrating sieve having three or more stages of the upstream net 28 and the downstream net 30 may be used. Other vibrating sieves such as an inclined vibrating sieve or a horizontal vibrating sieve having only one stage of the side net 28 and the downstream net 30 may be used.

The vibrating sieving machine 10 divides a plurality of sieving nets 28 and 30 into raw materials G to be charged for sorting.
In a flowing direction, a pair of unbalanced weights are rotated, vibration is given to the vibrating sieve machine body 16 and the nets 28 and 30 are vibrated, so that the raw material G flows upstream in the flowing direction. Move it further downstream. As a result, the raw material G having a size equal to or less than a certain value that has passed through the meshes of the nets 28 and 30 and the material G having a size equal to or more than a certain size that cannot pass through the meshes can be separated. The raw material G having the following size is dropped onto a conveyor (not shown) arranged below the lower support 11, but is not smaller than a certain size that cannot pass through the mesh. The raw material G moves to a stockyard or the like on the downstream side of the net 30 on the downstream side.

As shown in FIG. 2, the upstream net 28 is, for example, a harp type net in which meshes 28a are very long in the direction in which the material G flows (in the direction in which the material G flows). It may be a toncap-type net having a mesh length that is long, for example, having a mesh length about three times as large as the mesh width.)
Are stretched in such a manner that the direction of tension is the same as the direction in which the raw material G flows. An upper end hook 32 is attached to the upper end of the upstream net 28, and a lower end hook 34 is attached to the lower end of the upstream net 28. Is hooked on a hook member 36 attached to the upstream side plate 35 of the upstream net 28, while its lower end hook 34 is erected on the lower end side of the upstream net 28. It is hooked on the hook member 37. And
As shown in FIG. 3, an adjusting screw 38 is attached to the support member 36, and by tightening a nut 39 to which the screw 38 is screwed, the upstream mesh 2 is tightened.
8 is adjusted.

The upper end hook 32 and the lower end hook 3
4, a plurality of support members 42 extending in a direction perpendicular to the direction in which the raw material G flows are disposed, and these support members 42 are the upper end hook 32 and the lower end hook 3.
4 supports the upstream net 28. Specifically, the support member 42 includes a pipe 42a extending in a direction perpendicular to the direction in which the raw material G flows, and a flat plate member 42 such as a flat iron mounted on the pipe 42a.
b, and a soft member 42c such as a cushion rubber attached to the flat plate member 42b, for example.
The soft member 42c contacts the lower surface of the upstream net 28. The height of the soft member 42c of each support member 42 is adjusted so that the center of the net 28 has an arch shape projecting upward.

However, the support member 42 does not need to be configured as in the above-described embodiment, and may be composed of, for example, only a pipe extending in a direction orthogonal to the direction in which the raw material G flows. The shape may be other than the above. Further, as shown in FIG. 4, an intermediate holding support member 44 extending in a direction orthogonal to the direction in which the raw material G flows may be provided at the center of the upstream net 28.
When the intermediate holding support member 44 is provided at the center of the upstream net 28, the tension of the upstream net 28 increases, and
The slack of the upstream net 28 is reduced, and fluttering and collapse of the upstream net 28 are prevented. The specific configuration of the intermediate holding support member 44 is a flat upper side plate 44a extending in a direction perpendicular to the direction in which the raw material G flows,
It comprises an L-shaped lower side plate 44b extending in a direction perpendicular to the direction in which the raw material G flows, and a connecting member 44c for connecting them, but is not limited to the shape of this embodiment. , And may have other shapes.

As described above, the reason for using a net having a high opening ratio in the direction in which the raw material G flows as the upstream net 28 is as follows.
When the raw material G having various sizes is sieved while moving from the upstream side to the downstream side in the flowing direction,
This is because it is desirable to drop the raw material G smaller than the opening width as much as possible at the upstream net 28. That is, for example, in the case of a raw material G having a high water content and a high viscosity, the raw materials G smaller than the mesh width of the mesh 28a tend to be cohered and become larger when moving from the upstream side to the downstream side. There is a property of preventing the raw material G from being sieved, and if the raw material G smaller than the mesh width of the mesh 28a falls at the upstream net 28 as much as possible, the material that hinders the raw material G from being sieved may be. This is because the sieving efficiency increases.

Therefore, as the upstream net 28, for example, a net 28a of a harp type in which the net 28a is extremely long in the direction in which the raw material G flows, or the net 28a
Is a mesh having a high aperture ratio with respect to the flow direction of the raw material G, such as a toncap-type net that is long open in the flow direction of the raw material G, so that the tension direction is the same as the flow direction of the raw material G. It is preferable to stretch the net 2 because it has many strands extending in the flowing direction.
This is because the strength of No. 8 is maintained. On the other hand, the toncap type net, or the net of the harp type, such as a net having a high opening ratio with respect to the direction in which the raw material flows, is used as the upstream net 28, and its tension direction is If the upstream net 28 is stretched so as to be in the same direction as the direction orthogonal to the direction in which the raw material G flows, the strength of the net 28 cannot be maintained because the number of strands of the net extending in the flowing direction is small. The net 28 is difficult to use due to its strength.

On the other hand, the downstream network 30 is, for example, a mesh 3
It is desirable that 0a is a mesh of a square mesh type in which the mesh is substantially square. One end hook 45 is attached to one end of the downstream net 30, and the other end hook 47 is attached to the other end of the downstream net 30. , 47 are the upper hooks 3
Like FIG. 8, it is hooked on a hooking member (not shown). A screw similar to the adjustment screw 38 is attached to the hook member, and the tension of the downstream net 30 can be adjusted by tightening the screw with a nut. .

Also, one end hook 45 and the other end hook 4
7, a supporting member 4 extending in the direction in which the raw material G flows.
The support members 48 support the downstream net 30 between the one-end hook 45 and the other-end hook 47. Specifically, the support member 48 includes, for example, a flat plate member 48a such as a flat iron extending in the direction in which the raw material G flows, and a soft member 48b such as a cushion rubber mounted on the flat plate member 48a. The soft member 48b is in contact with the lower surface of the downstream net 30. Each support member 48 is formed so that the center of the net 30 has an arch shape projecting upward.
The height of the soft member 48c is adjusted.

However, the support member 48 does not need to be configured as in the above embodiment, and may be composed of, for example, only a pipe extending in a direction perpendicular to the direction in which the raw material G flows. The shape may be other than the above.

As the downstream side network 30, a mesh 30a
The reason for using a mesh type mesh that is substantially squarely open is that, among the raw materials G, only the raw material G smaller than the size of the mesh 30a falls, and the raw material G larger than the size of the mesh 30a does not fall. This is because the size of the raw material dropped from the mesh 30a becomes uniform, and only the raw material G having a required size is selected.

For the downstream net 30, for example, the shape of the net 30a is square, and the tension direction of the downstream net 30 is the same as the direction orthogonal to the direction in which the raw material G flows. So that the downstream net 30
Nozomu Mashiku is to stretched and because, in the transverse direction of the strand, even subjected to any load due to the flow of the raw material G, the mesh 30a
This is because collapse of the image hardly occurs. Therefore, of the raw materials G, only the raw material G smaller than the mesh width of the mesh 30a falls, and the raw material G larger than the mesh width of the mesh 30a does not fall,
The size of the raw material G dropped from the mesh 30a becomes substantially uniform. On the other hand, if the tension direction of the downstream net 30 is set along the direction in which the raw material G flows, the net 30 is tensioned in the direction in which the raw material G flows, and the net 30 is tensioned in a direction perpendicular to the flowing direction. When a load due to the flow of the raw material G is applied to the horizontal element wire, the mesh 30a
Is easy to collapse. Therefore, of raw material G, mesh 3
The raw material G larger than the mesh width of 0a also drops, and the size of the raw material G dropped from the mesh 30a is not uniform.

It is desirable to use the following network as the downstream network 30. That is, as shown in FIG. 5 and FIG. 6, the downstream net 30 is composed of a horizontal wire 50 to which tension is applied in a direction orthogonal to the direction in which the raw material G flows, and a wire in the horizontal direction. A vertical element wire 51 arranged on the upper surface 50 in the same direction as the flow direction of the raw material G, and an intersection portion where the horizontal element wire 50 and the vertical element wire 51 intersect. Between the connecting line portions L1 where the connecting portions 52 are connected to each other, the non-connecting line portions L2 having the non-connecting portions 54 whose crossing portions are not connected to each other are formed in the vertical and horizontal directions. It is desirable to use a net formed so as to be located at each position.

In the illustrated embodiment, there are four vertically extending non-connecting line portions L2a between the vertically extending connecting line portion L1a and the adjacent connecting line portion L1a, and the horizontal direction. Between the connecting line portion L1b extending in the horizontal direction and the adjacent connecting line portion L1b, there are four non-connecting line portions L2b extending in the horizontal direction. Therefore, the connecting line portion L1a and the same connecting line portion L1a are provided. , And between the connection line portion L1b and the connection line portion L1b, there are 16 non-connection portions 54, and the connection portion 5
2 are arranged. Then, in the non-joining portion 54, the horizontal strand 50 and the vertical strand 51 are
As described above, since the wires are not connected to each other, the wires 51 in the vertical direction freely move up and down on the wires 50 in the horizontal direction to which the tension is applied in a direction perpendicular to the flowing direction of the raw material G. It has become. Accordingly, the tapping of the element wire 51 in the vertical direction is allowed in the non-joining portion 54, so that the raw material G attached to the mesh is separated from the mesh, thereby preventing clogging and sticking.

Note that the present invention is not limited to the above-described embodiment, and various other modifications are possible. For example, as shown in FIG. 7, as the upstream net 28,
For example, a single harp-type net whose mesh is extremely long in the direction in which the raw material flows is used, and two square-type nets whose mesh is substantially square are used as the downstream net 30. The upstream net 28 may be used as the upstream net 28, or a toncap type net in which the net is long in the direction in which the raw material flows, or a harp type in which the net is extremely long in the direction in which the raw material flows. Two or more nets of the type may be used, and as the downstream net 30, three or more nets of the square type whose meshes are substantially square may be used. Further, as the downstream side net 30, one or two or more nets whose meshes are long in the direction in which the raw material flows, for example, a toncap type net may be used.

Further, when the mesh of the existing vibrating sieving machine is a square type mesh in which the mesh is substantially square, the mesh is long in the upstream direction of the existing vibrating sieving machine in the direction in which the raw material flows. A toncap-type net that opens or a harp-type net that opens very long in the direction in which the raw material flows may be provided.On the contrary, the net of the existing vibrating sieve has a net In the case of a toncap type net that opens long in the direction in which the raw material flows, or a harp type net in which the net opens extremely long in the direction in which the raw material flows, the net is located downstream of the existing vibrating sieve. A square mesh type mesh that opens in a substantially square shape may be provided.

The material of the upstream net 28 and the downstream net 30 is not particularly limited, and may be a metal net or a synthetic resin net made of urethane or another synthetic resin.

[0030]

As apparent from the above, the vibration sieve according to the present invention has the following effects.

According to the vibrating sieve described in claim 1,
As this upstream net, a toncap type net whose mesh is long in the direction in which the raw material flows, or
Using a net having a high aperture ratio with respect to the direction in which the raw material flows, such as a harp type net in which the mesh opens extremely long in the direction in which the raw material flows, the tension direction of the upstream net is determined by the direction in which the raw material flows. Since the mesh is stretched in the same direction as the above, the strength of the net is maintained, and the net is opened with a large dimension in the direction in which the raw material flows. Even mud or the like can be easily sieved off. On the other hand, since the downstream net is stretched so that the tension direction of the downstream net is the same as the direction orthogonal to the flowing direction of the raw material, the downstream net flows through the downstream net. It can be easily added in the same direction as the direction, and the sieving ability of the vibrating sieve can be easily increased. Thereby, even if it is a raw material for which sieving and sorting is difficult, sieving and sorting can be performed reliably. Ma
In addition, the mesh on the downstream side has a substantially square mesh
Since it is a square mesh type, the size of the mesh
Only raw materials smaller than the size fall, the size of the mesh shape
Larger raw material does not fall, but the size of the raw material dropped from the mesh
Is almost uniform and sorts only raw materials of the required size
can do.

Further, according to the vibrating sieve described in claim 2 , the downstream side mesh is provided with a horizontal elemental wire to which a tension is applied in a direction orthogonal to a direction in which the raw material flows, and the horizontal elemental wire. On the element wires in the direction, a vertical wire arranged in the same direction as the flow direction of the raw material is formed from the vertical wires, and an intersection portion where these horizontal wires and the vertical wires intersect is formed. A non-bonding line portion having a non-bonding portion where the crossing portions are not bonded to each other is located between a connecting line portion where the connecting portions that are connected to each other are continuous with each other in a vertical direction and a horizontal direction. In order to allow tapping of the elemental wires in the vertical direction at the non-bonded portion, the raw material attached to the mesh is separated from the mesh, clogging and sticking are prevented, and the sieve of the vibrating sieve is used. The ability to divide increases.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of a vibrating sieve according to the present invention.

FIG. 2 is a perspective view showing an installation state of a net used in the vibrating screen machine.

FIG. 3 is a side view showing an installation state of a net on the upstream side.

FIG. 4 is a view corresponding to FIG. 3 of another embodiment.

FIG. 5 is a diagram schematically showing an enlarged downstream network.

FIG. 6 is a diagram showing a joined portion and a non-joined portion at an intersection where a horizontal element wire and a vertical element wire of a downstream net intersect.

FIG. 7 is a plan view of another embodiment.

[Explanation of symbols]

REFERENCE SIGNS LIST 10 vibrating sieve G raw material 28 upstream mesh 28a mesh 30 downstream mesh 30a mesh 50, 51
Element 52 Connecting part 52 Non-connecting part L1 (L1a, L1b) Connecting line part L2 (L2a, L2b) Non-connecting line part

Claims (2)

(57) [Claims] 1. A method in which a raw material supplied for sorting flows.
One or more upstream nets and their upstream
One or more sheets downstream of the mesh
In a vibrating sieve that sifts the raw material, the upstream net is a toncap type net in which the mesh is long in the direction in which the raw material flows, or the net is a mesh of the raw material. A net having a high opening ratio with respect to the direction in which the raw material flows, such as a harp type net that opens very long in the flowing direction, and the tension direction of the upstream net is the same as the direction in which the raw material flows. And the downstream mesh is a square mesh whose mesh is substantially square.
Type of mesh , wherein the tension direction of the downstream mesh is in the direction in which the raw material flows.
A vibrating sieve machine, which is stretched so as to be in the same direction as a direction orthogonal to the direction . 2. The flow of the raw material to be input for sorting.
One or more upstream nets and their upstream
One or more sheets downstream of the mesh
And a vibrating sieve for sieving the raw materials.
The upstream net has a mesh longer in a direction in which the raw material flows.
Toncap type mesh with mesh opening or mesh in front
Harp type tap that opens for a very long time in the direction in which the raw material flows
High opening ratio in the flow direction of raw materials such as IP net
A mesh, and the tension direction of the mesh on the upstream side is
While being stretched so as to be in the same direction as the flowing direction, the downstream net is orthogonal to the flowing direction of the raw material.
The horizontal strands that are strained in the direction
Arranged on the strand in the same direction as the flow direction of the raw material
Vertical element wires, and these horizontal elements
The intersection of the line and the vertical strand joins
Between the connecting line portions where the connecting portions
Non-bonded laminations having non-bonded parts whose parts are not bonded to each other
So that the in part is located in each of the vertical and horizontal directions
A vibrating screen machine, characterized in that the screen is formed as follows .