TW202112426A - Screening device and treatment system - Google Patents

Abstract

This screening device is provided with a screening surface to which a material to be treated is supplied, and comprises: linear first and second wire rods having central axes arranged in parallel with each other; a first locking part for movably locking respective one ends of the first and second wire rods; a second locking part for movably locking the respective other ends of the first and second wire rods; and a control device for controlling a first spacing that is a spacing between the respective one ends. The control device can change the first spacing to be larger than a second spacing that is a spacing between the respective other ends.

Description

Curtain screen device and processing system

The content disclosed in this case is about the curtain screen device and processing system.

In curtain screen devices used for various purposes such as solid-liquid separation and classification, there are formed: sieve bar slits (that is, the interval and gap between adjacent wires), and the sieve bar slits are It can prevent the passage of substances larger than or equal to a predetermined size contained in the processed object, and only allow the passage of substances smaller than the predetermined size, or only allow the passage of a predetermined amount of the processed object. In addition, among the curtain screen devices, not only the size of the slit of the screen bar is fixed, but also a device in which the size of the slit of the screen bar can be changed.

For example, the device disclosed in Patent Document 1 includes a fixed side screen member and a movable side screen member that can slide on the fixed side screen member. By sliding the movable side screen member, the screen slit can be changed. the size of.

In addition, the device disclosed in Patent Document 2 is a device that expands the distance between adjacent wires by stretching a wire wound into a coil spring in a spiral shape. In other words, it can change the size of the slit of the screen.的装置。 The device. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Laid-Open No. 10-235293 [Patent Document 2] Japanese Patent No. 6459962

[The problem to be solved by the invention]

However, in the curtain screen devices disclosed in Patent Documents 1 and 2, although the size of the slits of the screen bars can be changed, the slits of the screen bars are of the same size in each place. Therefore, for example, for applications where the undersieve needs to be classified into many sizes, a single type of screen screen device cannot be used, and multiple types of screen screen devices must be used. Therefore, there is a concern that the expenditure required for this purpose may be increased.

The present invention was developed in order to solve the above-mentioned technical problems, and is to provide: as long as the use of a simple structure, the size of the slit in the screen of a screen screen device can be adjusted according to the size of the screen strip in the screen screen device. The order in the length direction of the screen is controlled into different sizes of curtain screen devices to use the curtain screen device processing system. [Technical means to solve the problem]

The first aspect of the curtain screen device of the present invention and the curtain screen device in the processing system of the present invention is provided with a curtain screen surface to be supplied to be processed, and their central axes are kept parallel to each other A first wire and a second wire that are arranged linearly; a first locking portion used to movably lock each end of the first wire and the second wire; used to hold the first wire And a second locking portion for movably locking the other end of each of the aforementioned second wires; a control device for controlling the interval between the aforementioned respective ends, that is, the first interval; and at the aforementioned respective end, for The sliding part where the first wire and the second wire push. The control device can change the first interval to be greater than the interval at the other end of the respective other end, that is, the second interval. In a cross section orthogonal to the screen surface of the screen, the difference between the first wire and the second wire is The shapes are all: a shape that becomes thinner as the vertical direction is farther away from the screen surface, and the sliding part is in the cross section and has a rod-like shape arranged between the first wire and the second wire. First sliding part. In the aforementioned control device, the aforementioned first sliding portion faces the aforementioned screen surface and travels along the aforementioned vertical direction, and the aforementioned first interval can be changed to be greater than the aforementioned second interval.

The second aspect of the curtain screen device of the present invention and the curtain screen device in the processing system of the present invention has: a curtain screen surface to be supplied to be processed, and the central axes of each other are kept parallel A first wire and a second wire that are arranged linearly; a first locking portion used to movably lock each end of the first wire and the second wire; used to hold the first wire And a second locking portion for movably locking the other end of each of the aforementioned second wires; a control device for controlling the interval between the aforementioned respective ends, that is, the first interval; and at the aforementioned respective end, for The sliding part where the first wire and the second wire push. The aforementioned control device can be formed by changing the aforementioned first interval to be greater than the interval of the respective other end, that is, the second interval, by alternately arranging a plurality of the aforementioned first wires and the aforementioned second wires: As a cylindrical body on the inner or outer side, the sliding part has: the outer diameter of the upper bottom is smaller than the inner diameter of the cylindrical body, and the outer diameter of the lower bottom is larger than the inner diameter of the cylindrical body. Shaped third sliding part. In the aforementioned control device, the aforementioned third sliding portion is inserted into the aforementioned cylindrical body from the aforementioned upper bottom, and the aforementioned first interval can be changed to be greater than the aforementioned second interval.

The third aspect of the curtain screen device of the present invention and the curtain screen device in the processing system of the present invention has: a curtain screen surface to be supplied to be processed, and the central axes of each other are kept parallel A first wire and a second wire that are arranged linearly; a first locking portion used to movably lock each end of the first wire and the second wire; used to hold the first wire And a second locking portion for movably locking the other end of each of the aforementioned second wires; a control device for controlling the interval between the aforementioned respective ends, that is, the first interval; and at the aforementioned respective end, for The sliding part where the first wire and the second wire push. The aforementioned control device can be formed by changing the aforementioned first interval to be greater than the interval of the respective other end, that is, the second interval, by alternately arranging a plurality of the aforementioned first wires and the aforementioned second wires: As a cylindrical body on the inner or outer side, the sliding portion is provided with: a fourth sliding portion, which is arranged on the outer circumference of the cylindrical body to reduce the inner diameter of the cylindrical body at the one end The change of is limited to below a predetermined value, and is a wedge between the first wire and the second wire. The control device moves the fourth sliding portion along the axis of the cylindrical body to cut the wedge portion between the first wire and the second wire, and the first interval can be changed to be greater than The foregoing second interval. [Effects of Invention]

According to the curtain screen device and the processing system using the curtain screen device of the present invention, both ends of the first wire and the second wire are respectively movably connected to the first locking portion or the second locking portion The control device is located at one end of each wire, which can expand the interval between the two wires, that is, the first interval. Therefore, it can be provided that as long as a very simple structure is used, the size of the slit of the screen bar in a screen screen device can be controlled to be gradually changed according to its position in the length direction of the screen screen device A curtain screen device with the slit size of the screen bar and a processing system using the curtain screen device.

Hereinafter, the embodiments of the curtain screen device of the present invention and the processing system using the curtain screen device are described below with the drawings.

<First Embodiment> (A flat screen screen device with a first sliding part) Hereinafter, the curtain screen device 1A of the first embodiment will be described with reference to FIGS. 1 to 5. In addition, in the following description, the xyz orthogonal coordinate system shown in each figure is used for description. In the following description, the direction of the x-axis is referred to as the “x direction”; the direction of the y-axis is referred to as the “y direction”; and the direction of the z-axis is referred to as the “z direction”. In addition, the z direction in FIGS. 1 to 5 refers to the vertical direction, and the direction pointed by the arrow of the z axis is the upward direction (that is, the direction opposite to the direction in which gravity acts).

The curtain screen device 1A is, for example, a linear wire material 2 such as a wedge wire, and a plurality of wires 2 are regularly arranged on the same plane like a "bamboo curtain" to have a flat plate shape. Here, the curtain screen device 1A regards the y direction as the length direction of each wire 2, and keeps the central axis C of each wire 2 parallel to each other, and arranges a plurality of wires 2 regularly along the x direction. Constituted. In addition, among the plurality of wires 2, one of the two adjacent wires 2 is referred to as a first wire 2a; the other is referred to as a second wire 2b. The first wire 2a and the second wire 2b are arranged such that their central axes C are separated by a predetermined distance in the x direction, and a gap is formed between the first wire 2a and the second wire 2b. The predetermined distance in the x direction of the respective central axes C of the first wire 2a and the second wire 2b is set due to the application. In Fig. 1 to Fig. 3 and Fig. 5, the adjacent wires 2 appear to be in contact with each other and no gap is visible. However, this is because in the examples shown in these figures, the adjacent wires 2 have only a slight gap of a few mm between each other, so it is not obvious from these figures that there is a gap. In fact, the wires 2 adjacent to each other are not in contact with each other in principle, except for the exceptions described later. The wire 2 has a flat surface, that is, the screen surface S. The screen surfaces S of each wire 2 are not shifted from each other in the z direction, but are all arranged on the same plane. In order to restrict the movement of the wires 2 so that the screen surfaces S of the wires 2 do not shift from each other in the z direction, for example, a plate-shaped movement restricting portion 3 straddling the wires 2 is arranged. In addition, although the movement restriction part 3 is arrange|positioned here above the z direction of the screen surface S, the movement restriction part 3 which is not shown in figure is also arrange|positioned below the z direction of each wire material 2 here. That is, each wire 2 is clamped from above and below in the z direction by the two movement restricting parts 3, thereby restricting the movement of each wire 2 in the z direction. Also, although it is not shown in the figure, at least one movement restricting portion 3 is arranged near both ends of each wire 2 (if the wire is clamped from above and below in the z direction, at least two of each are arranged) One movement restriction part 3) is appropriate. One end of each of the wires 2 (hereinafter referred to as "one end") is connected to the locking portion 4 (first locking portion 4a) that can expand and contract in the x direction; The end on the other side (hereinafter referred to as "the other end") is connected to the locking portion 4 (second locking portion 4b) that can expand and contract in the x direction. Therefore, the movement of each wire 2 in the x direction can also be restricted. In addition, the shape of the wire 2 may be a shape that maintains the same area from one end to the other end; it may also be a shape that gradually tapers from one end to the other end, or from the other end to the other end.

Here, the wedge wire is used as the wire 2 for description. The so-called "wedge line" constitutes a cross-sectional shape orthogonal to the central axis C, and includes shapes such as trapezoid, semicircle, and triangle. As long as it is a wedge line having a flat part in the cross-sectional shape, it can be used in this embodiment by using the flat part as the screen surface S. In this embodiment, it is shown that a wedge-shaped wire having a triangular cross-sectional shape is used as an example of the wire 2. Because one side of the triangle is used as the screen surface S, the cross section of the wire 2 gradually changes from the screen surface S toward the z direction (the direction perpendicular to the screen surface S). Thinner.

Although the locking portion 4 (the first locking portion 4a, the second locking portion 4b) may be an elastic body connected to one end of each of the first wire 2a and the second wire 2b or to the other end of each ( (Spring, rubber, etc.), however, in this embodiment, an example in which the locking portion 4 is constituted by a link mechanism is shown. In addition, the first locking portion 4a and the second locking portion 4b may both adopt the same structure, or one may adopt a link mechanism, and the other may adopt a different structure such as an elastic body.

The link mechanism has a pair of link arms 41 that connect adjacent wires 2 and wires 2. One end of the link arm 41 is rotatably connected with each other by the first connecting pin 41a. The other end of the link arm 41 is rotatably connected to the respective end of the adjacent wire 2 by the second connecting pin 41b. In addition, although in FIGS. 1 to 3, they are not shown based on the relationship on the paper, in fact, as shown in FIG. 4, the elastic body (spring, rubber, etc.) 41c is used to combine the above-mentioned The two paired link arms 41 are connected to each other. The elastic body 41c exerts an elastic force on the two link arms 41 to bring them closer to each other.

The control device 6 executes the control of moving the sliding parts that are forced by the first wire 2a and the second wire 2b, so that the positions of the adjacent wires 2 can be positioned at each of the above-mentioned "ends". The distance between the central axes C (hereinafter, referred to as the "first interval Ga") becomes greater than the distance between the respective central axes C at the above-mentioned "other end" (hereinafter, referred to as the "second interval Gb") . In the first embodiment, it is shown that the first sliding portion 5a having a short rod shape with a slightly circular cross section is used as an example of the sliding portion. The first sliding portion 5a is arranged between two adjacent wires 2 in the x direction (width direction) of the screen device, and is arranged below the screen surface S of the wire 2 in the z direction. Rod-shaped member. The first sliding portion 5a is arranged in the vicinity of the aforementioned "one end", for example, in the vicinity of the first locking portion 4a. In this embodiment, one first sliding portion 5a is arranged between each of the two wires 2 and the first sliding portion 5a is arranged so as to be in contact with two adjacent wires 2. It is preferable to arrange each first sliding portion 5a so that when the first gap Ga is expanded as described later, it can move in the x direction with each wire 2 and can move in the x direction independently of each other. It slides upward, and the rod axis of the first sliding portion 5a can be detached from the y direction. The control device 6 is provided with a moving mechanism that can move the first sliding portion 5a up and down in the z direction. For example, a moving mechanism (not shown) using a hydraulic cylinder or an electric cylinder can make the first sliding portion 5a moves from the screen surface S toward the lower side of the z direction and within a predetermined range.

The control device 6 moves the first sliding portion 5a toward the screen surface S. In this way, the first sliding portion 5a, which is in contact with the first wire 2a and the second wire 2b at the same time, can be The interval between the first wire 2a and the second wire 2b is forced to expand in the x direction (the width direction of the screen device). As described above, in this embodiment, the first wire 2a and the second wire 2b are both wedge-shaped wires with a triangular cross section. Therefore, the closer the first sliding portion 5a is to the screen surface S, the distance will go to x The direction expands linearly. Specifically, in the example of FIG. 4, the first wire 2a moves toward the +x direction (positive x direction, that is, the positive direction on the x axis), and the second wire 2b moves toward the -x direction (negative x direction, that is, The negative direction on the x-axis) moves. At this time, due to the restriction action of the movement restriction portion 3, the first wire 2a and the second wire 2b do not move in the z direction. The control device 6 controls in this way to expand the interval between the first wire 2a and the second wire 2b, so that the first interval Ga can be made larger than the second interval Gb. In addition, as shown in FIG. 5, before this control is executed, the first gap Ga and the second gap Gb are both the above-mentioned predetermined distance, and the first wire 2a and the second wire 2b are not in contact with each other in principle. However, because the first interval Ga is enlarged, the second interval Gb becomes narrower than the predetermined distance. Therefore, as an exception, there may be cases where the first wire 2a and the second wire 2b are in contact at the "other end" of each.

On the other hand, the control device 6 expands the interval between the first wire 2a and the second wire 2b in the above-mentioned manner, and then moves the first sliding portion 5a downward from the screen surface S in the z direction, that is, If the first sliding part 5a is moved further away from the screen surface S, the elastic body 41c exerts an elastic force on the two link arms 41 to bring them closer to each other, so that the first sliding part 5a at the above-mentioned contact point can be moved closer to each other. The distance between the central axis C of the wire 2a and the second wire 2b becomes narrow in the x direction until the predetermined distance described above is restored.

In addition, if the curtain screen device 1A is used, it is preferable to use the "one end" below the z direction of the "other end", and to use the y direction downward from the horizontal line. The to-be-processed object P is supplied from the upper direction of the z direction of the screen screen surface S to the screen screen surface S near the said "other end". In this way, predetermined processing such as classification, solid-liquid separation, and concentration can be performed according to the type of the processed material P.

In the above description, although a short rod-shaped member with a slightly circular cross-section is used as the first sliding portion 5a, this member may not be used, but the link mechanism described above may be used, for example: The first connecting pin 41a serves as the first sliding portion 5a. In this case, the control device 6 can move the first sliding portion 5a, that is, the first connecting pin 41a toward the screen surface S, so that it can pass through the second connecting pin 41b and the link arm 41, The interval between the first wire 2a and the second wire 2b is pushed in the x direction (the width direction of the screen device) to expand.

As described above, the screen screen device 1A of the first embodiment only needs to move the first sliding portion 5a toward the z direction with a simple structure, and the gap between the adjacent wires 2 (screen slits) can be reduced. The size of ), as shown in FIG. 5, is controlled to gradually increase in the length direction from the "other end" of the wire 2 toward the "one end". Therefore, as long as a single curtain screen device is used, the processed objects supplied to the "other end" can be classified in multiple stages from small diameter objects to large diameter objects before reaching the "one end", or be solid-liquid. Separation and other processing. Therefore, the screen screen device 1A is a screen screen device having an excellent CP value.

<Modifications of the first embodiment> (A flat screen screen device with a second sliding part) Fig. 6 to Fig. 8 show a modification of the first embodiment. The parts, devices, etc. which are the same as those in the first embodiment are denoted by the same reference numerals, and their descriptions are omitted. This modification differs from the first embodiment in that it uses a plate-shaped movement restricting portion 3 that abuts on the screen surface S in the z-direction and is provided with a plurality of second wedge portions 7 described later. The sliding part 5b replaces the first sliding part 5a as a sliding part. In addition, the control device 6 is provided with a moving mechanism that can move the second sliding portion 5b in the y direction. For example, a moving mechanism (not shown) such as a hydraulic cylinder or an electric cylinder is used to enable The second sliding portion 5b faces the +y direction (positive y direction, that is, the positive direction on the y axis) and the -y direction (negative y direction, that is, the negative direction on the y axis) along the screen surface S in a predetermined The method of moving within the range of is also different from the first embodiment. The other points are the same as the screen device 1A of the first embodiment. As shown in Fig. 8, viewed from the xy plane, the wedge portion 7 forms a wedge shape of two equilateral triangles. The length of the bottom side (short side in the x direction) of the wedge portion 7 is formed to be greater than the predetermined distance described above. In addition, the imaginary line connecting the middle point of the bottom side and the apex angle is arranged in the y direction, and is arranged at the middle point of the interval between the first wire 2a and the second wire 2b. In one example of this modification, a plurality of wedges 7 are respectively arranged in each gap between a plurality of adjacent wires 2. In addition, it is preferable to set each wedge portion 7 such that when the first gap Ga is enlarged, it can follow the movement of each wire 2 in the x direction, and the movement restriction portion 3 is like a "curtain track", Each independently slides in the x direction, and the axis of the wedge portion 7 can deviate from the y direction. In this modified example, the wedge portion 7 is a wedge-shaped equilateral triangle viewed from the xz plane as shown in FIG. 6, and is a right-angled triangle viewed from the yz plane as shown in FIG. In the case of a wedge type, it will be explained. In addition, the shape of the wedge portion 7 may also be formed in accordance with the cross-sectional shape of the wire rod 2: a quadrangular shape viewed from the xz plane, and a quadrangular shape viewed from the yz plane. The second sliding portion 5b, viewed from the xy plane and the z direction, is configured to position the vertex of the wedge portion 7 at the aforementioned end of the first wire 2a and the second wire 2b and between the first wire 2a and the second wire 2a. Between two wires 2b. Also, when viewed from the y direction, the bottom edge of the wedge 7 is arranged outside the wire 2. In this way, the distance in the x direction of each center axis C of the first wire 2a and the second wire 2b can be set to the above-mentioned predetermined distance. If the first wire 2a and the second wire 2b are arranged at the above-mentioned predetermined distance, the first gap Ga is enlarged to be larger than the second gap Gb, the control device 6 moves the second sliding portion 5b along the curtain The screen surface S moves in the +y direction (positive y direction). In this way, the wedge portion 7 will gradually cut into between the first wire 2a and the second wire 2b in the x direction from the top corner to the bottom edge, and move the first wire 2a and the second wire 2b toward x Therefore, the first interval Ga can be enlarged to be larger than the second interval Gb. In addition, the curtain screen device using the second sliding part is very suitable: at the one end, the distance between the center axes C of the adjacent wires 2 is enlarged by only a few mm from the predetermined distance. The amount of distance. The curtain screen device of this modified example can use a simple structure that moves the second sliding portion 5b in the y direction, and the size of the interval (screen slit) between adjacent wires 2 can be controlled to: From the "other end" to the "one end" of the wire rod 2, it gradually becomes larger in the length direction. Therefore, as in the first embodiment, as long as a single screen device is used, the processed object supplied to the "other end" can be processed from a small diameter object to a large diameter object before reaching the "one end". Multi-stage classification processing, or processing such as solid-liquid separation. Therefore, the screen device of this modification is a screen device having a very excellent CP value.

<Second Embodiment> (Cylindrical curtain screen device with third sliding part) Hereinafter, the curtain screen device 1B of the second embodiment will be described with reference to FIGS. 9 to 12. The curtain screen device 1B of the second embodiment differs greatly from the first embodiment in that it uses a plurality of wires 2 that are connected to each other by the locking portion 4 in the first embodiment. Viewed from the xz plane, it is made into a circular cylinder with the screen surface S on the inner side. The cylindrical body has: the y direction is used as the length direction of each wire 2 and the central axis C of each wire 2 is kept parallel to each other in the x direction, and the interval of the predetermined distance is kept between each other, and is regularly arranged at xz The structure on the same circle centered on the central axis O on the plane. In addition, the sliding part adopts: the outer diameter of the upper bottom is smaller than the inner diameter of the cylindrical body and the outer diameter of the lower bottom is larger than the inner diameter of the cylindrical body, and has a conical surface connecting the periphery of the upper bottom and the lower bottom The method of replacing the first sliding part 5a in the first embodiment with the third sliding part 5c in the shape of a truncated cone is also different from the first embodiment. If the shape of the third sliding portion 5c is made into a cylindrical shape with a large through hole (hereinafter referred to as a "frustum-shaped tube") from the center of the upper bottom toward the center of the lower bottom, not only can it reduce As for the material cost, as shown in Application Example 3 described later, the through hole of the third sliding portion 5c may be used for an application that allows the object P to be processed through. In addition, in order to prevent the cylindrical body from expanding beyond a predetermined outer diameter, a movement restricting portion 8 surrounding the outer circumference of the cylindrical body to restrict the movement of the wire 2 is used instead of the movement restricting portion 3 in the first embodiment. This approach is also different from the first embodiment. The movement restricting portion 8 is formed such that, for example, the length in the y direction is short, it is a circular frame when viewed in the xz plane, and its inner diameter is slightly larger than the outer diameter of the cylindrical body. Although not shown, it is preferable to arrange at least one movement restricting portion 8 in the vicinity of both ends of each wire 2. In addition, the control device 6 is provided with a moving mechanism 9 capable of moving the third sliding portion 5c in the y direction, for example, a moving mechanism using a hydraulic cylinder, an electric cylinder, etc., and the third sliding portion 5c can be moved along the center Axis O faces the +y direction (positive y direction, that is, the positive direction on the y axis) and -y direction (negative y direction, that is, the negative direction on the y axis) to move within a predetermined range. It is also different from the first embodiment. In addition, a drive device having an electric motor or the like not shown is used to rotate the cylindrical body at a predetermined speed around the center axis O, so that the third sliding portion 5c is combined with the wire 2 in a manner described later. In the case of contact, the third sliding portion 5c also rotates with the cylindrical body at the predetermined speed is also different from the first embodiment. As for the other points, they are the same as the screen device 1A of the first embodiment. Therefore, parts or devices that are the same as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

To expand the first gap Ga to be greater than the second gap Gb in a state where the central axes C of the first wire 2a and the second wire 2b are arranged at the predetermined distance, the control device 6 sets the third sliding part 5c moves along the central axis O in the +y direction (positive y direction). In this way, at the respective "ends" of the first wire 2a and the second wire 2b, the above-mentioned conical surface will gradually cut into the inside of the cylinder, viewed in the xz plane, from the central axis O toward the outside. Since the first wire 2a and the second wire 2b are pushed, the first gap Ga can be enlarged to be larger than the second gap Gb. In addition, as shown in FIG. 11, because of the existence of the movement restricting portion 8, the above-mentioned cylindrical body is at "one end" and cannot be forced to expand to be larger than the inner diameter of the movement restricting portion 8. Also, as described above, although the cylindrical body rotates at a predetermined speed, the third sliding portion 5c also rotates at the predetermined speed. Therefore, it is possible to prevent the occurrence of the conical surface of the third sliding portion 5c and the wire 2 There is a lack of friction and the like between them.

In addition, if the curtain screen device 1B is used for the solid-liquid separation treatment of sludge, etc., the "one end" is arranged below the "other end" in the z direction, and the y direction is arranged from the horizontal line to It is better to use it in a downwardly inclined state. In this case, the to-be-processed object P, ie, sludge, etc., is supplied to the screen surface S near the other end from above the screen surface S in the z direction.

In the above description, although the curtain screen device 1B is adopted: a plurality of wires 2 connected together by the locking portion 4 are made into a circular shape when viewed from the xz plane, and the curtain screen surface S is located Cylinder on the inner side. However, depending on the application, as shown in Fig. 13, a plurality of wires 2 connected together by the locking portion 4 can be made into a circular shape and a curtain when viewed from the xz plane. The screen surface S is located on the outer side of the cylindrical body.

As described above, the curtain screen device 1B of the second embodiment has a simple structure for moving the third sliding portion 5c in the y direction, and the inner part of the cylindrical body can be removed as shown in FIG. The diameter is forced to expand, so that the distance between adjacent wires 2 (screen slits) can be gradually changed from the "other end" to the "end" of the wire 2 according to its position in the length direction. Great control method. Therefore, as in the first embodiment and its modifications, as long as a single screen device is used, the processed object supplied to the "other end" can be processed from the small diameter object to the "one end" before reaching the "one end". Multi-stage classification treatment of large diameter objects, or solid-liquid separation and other treatments. Therefore, the screen device 1B of the second embodiment is a screen device having a very excellent CP value.

(Modification of the second embodiment) (Cylindrical curtain screen device with fourth sliding part) Although not shown in the figure, a structure similar to the second sliding portion 5b shown in the modification of the first embodiment can also be applied to the screen device 1B of the second embodiment. That is, the sliding part adopts: the fourth sliding part of the wedge part 7 of the second sliding part 5b is arranged on the movement restricting part 8, instead of the third sliding part 5c, which is the same as the second sliding part 5c. The implementation is different. In addition, the control device 6 is provided with a moving mechanism capable of moving the fourth sliding part in the y direction (the direction in which the central axis O of the cylindrical body extends), such as a moving mechanism using a hydraulic cylinder, an electric cylinder, etc. (Not shown), instead of the moving mechanism 9 that moves the third sliding portion 5c, the fourth sliding portion can be directed in the +y direction (positive y direction, that is, the positive direction on the y axis) and -y The method of moving in a predetermined range in the direction (negative y direction, that is, the negative direction on the y axis) is also different from the second embodiment. As for the other points, it is the same as the screen device 1B of the second embodiment. To expand the first gap Ga to be greater than the second gap Gb in a state where the central axes C of the first wire 2a and the second wire 2b are arranged at the predetermined distance, the control device 6 sets the fourth sliding portion Move in the +y direction (positive direction) along the central axis O. In this way, at the respective "ends" of the first wire 2a and the second wire 2b, the wedge portion 7 is gradually cut into between the first wire 2a and the second wire 2b from the top corner to the bottom edge. The first wire 2a and the second wire 2b are pushed, therefore, the first gap Ga can be enlarged to be larger than the second gap Gb. In this case, the diameter of the cylindrical body at the "one end" becomes larger than the state where it is arranged at the predetermined distance. Therefore, the shape of each wedge portion 7 is formed: when the first gap Ga is enlarged, each wire 2 can be expanded toward the movement restricting portion 8 in the diameter direction, for example: viewed in the xz plane, the bottom edge is connected The wedge shape in the shape of the two equilateral triangles in the movement restriction part 8. The screen screen device of this modified example has a simple structure that allows the fourth sliding part to move in the y direction. A control method in which the “other end” is toward the “one end” gradually becomes larger according to its position in the length direction. Therefore, as in the first embodiment and its modification and the second embodiment, as long as a single screen device is used, the processed object supplied to the "other end" can be treated before reaching the "one end". Multi-stage classification processing from small-diameter objects to large-diameter objects or processing such as solid-liquid separation are performed. Therefore, the screen device of this modification is a screen device having a very excellent CP value.

Next, an application example is given to illustrate: the treatment of the flat screen device 1A and its modification of the first embodiment, and the cylindrical screen device 1B of the second embodiment and its modification. system.

＜Application example 1＞ (Inclusion removal system) The processing system of FIG. 14 is the inclusion removal system 10 using the screen device 1B of the second embodiment. The to-be-processed object P in the inclusion removal system 10 uses sludge such as excrement and urine, and Johkasou sludge, and separates fibers (toilet paper, hair, etc.) from the sludge. The inclusion removal system 10 includes at least: a screen screen device 1B; a drive device 11 such as an electric motor for rotating the cylindrical body of the screen screen device 1B around the outer periphery of the central axis O; The to-be-processed object P is supplied to the to-be-processed object introduction pipe 12 inside the cylindrical body of the screen device 1B; and the moisture measuring device 13 for the moisture content of the to-be-processed object P to be supplied. The control device 6 of the screen device 1B receives the measurement result corresponding to the moisture content of the processed object P from the moisture measurement device 13, and moves the third sliding portion 5c in the y direction in accordance with the moisture content. . Specifically, if the moisture content is lower than a predetermined value, the control device 6 controls the third sliding portion 5c to move in the +y direction (positive y direction) so that the first interval Ga is greater than the second interval Gb. If the moisture content is higher than the predetermined value, the control device 6 controls the third sliding portion 5c to move in the -y direction (negative y direction) so that the first interval Ga is narrowed and returned to the predetermined distance. In addition, the control device 6 controls the third sliding portion 5c to move in the +y direction (positive y direction) such that the maximum difference between the first interval Ga and the second interval Gb is approximately 3 mm, for example. That is, the inclusion removal system 10 can control the size of the interval (screen slit) between adjacent wires 2 according to the moisture content of the processed material P, so that the interval is from the "other end" of the wire 2 Towards the "one end" gradually becomes larger along the length direction. Therefore, as long as a single screen device is used, water can be quickly removed from the processed material supplied to the "other end" and the fiber can be separated. Therefore, the inclusion removal system 10 is not only an excellent CP value, but also a processing system capable of exhibiting excellent solid-liquid separation processing performance. In addition, the control device 6 also controls the driving of the drive device 11. If the water content is higher than the predetermined value, the rotation speed of the cylinder is controlled to be lower than the predetermined speed, and if the water content is lower than the predetermined value , The rotation speed of the cylinder is controlled to be higher than the predetermined speed. Therefore, the fibers can be easily rotated in the cylindrical body while also forming a roller shape, because the fibers that may block the gaps are formed into a roller shape to gather the fibers together. The cylindrical body can have a self-cleaning function. In addition, the cylinder system is connected to the pillar or wall 14 at the "other end", and the pillar or wall 14 is used to fix a part of the wire 2 and is used to directly or indirectly convey the driving device 11 The driving force causes the cylindrical body to rotate. In addition, as will be described in detail later, if you want to arrange the third or fourth sliding part on the "other end" to make it possible to change the second interval Gb, you only need to place the pillar or wall 14 in the xz plane. What is necessary is just to provide the structure which can extend outward from the central axis O.

In addition, in this application example, although the curtain screen device 1B (second embodiment) provided with the third sliding portion 5c is used for description, the curtain screen device provided with the fourth sliding portion (second embodiment) is used. Modification of the method), it can also be a processing system with the above-mentioned excellent performance.

＜Application example 2＞ (Sludge Dewatering System) The processing system of FIG. 15 uses the sludge dewatering system 15 of the screen device 1B of the second embodiment. The processed material P in this system is sludge. The sludge dewatering system 15 includes at least: a curtain screen device 10B; a spiral blade 17 having a width extending to the vicinity of the inner peripheral surface of the cylindrical body and a spiral shaft 18 arranged on the central axis O; and arranged in the center The axis O is a to-be-processed object introduction tube 12a with a double-tube structure that is arranged coaxially with the screw shaft 18 inside the screw shaft 18; and is used to measure the to-be-processed object P carried by the to-be-processed object introduction tube 12a ( Water content measuring device 13a for the water content of sludge. The sludge dewatering system 15 uses a driving device not shown to make the screw shaft 18 and the cylindrical body rotate at high speeds at different rotation speeds, and will be formed at the tip of the processed object introduction pipe 12a. The to-be-processed object supply hole 19 supplied to the to-be-processed object P on the screen surface S of the "one end" of the cylindrical body is squeezed and transported before reaching the "other end", and is placed in the " The de-cemented block discharge hole 20 near the other end" discharges the de-cemented block. The screw shaft 18 is attached to the above-mentioned cylindrical body, and its diameter is gradually enlarged from the "one end" to the "other end", so this pressing can be performed. Because the centrifugal force generated by the high-speed rotation is used to dewater the moisture of the sludge, the sludge dewatering system 15 is provided with a casing 16 surrounding the cylindrical body in order to prevent the sewage etc. from being splashed around. . In addition, the housing 16 is provided with a separated liquid discharge pipe 21 for discharging the dehydrated moisture (separated liquid), and a dehydrated block discharge pipe 22 for discharging the dehydrated block discharged from the dehydrated block discharge hole 20.

The control device 6 of the screen device 1B first receives the measurement result corresponding to the moisture content from the moisture measurement device 13a, and then controls the third sliding portion 5c to move in the y direction in accordance with the moisture content. Specifically, if the moisture content is lower than the predetermined value, the control device 6 controls the third sliding portion 5c to move in the +y direction (positive y direction) so that the first interval Ga is enlarged to be greater than the second interval Gb. If the moisture content is higher than the predetermined value, the control device 6 controls the third sliding portion 5c to move in the -y direction (negative y direction) to narrow the first gap Ga and return to the predetermined distance. In addition, as mentioned above, the cylinder system rotates at a high speed, and the sludge is transported from one end to the other end while being squeezed. Therefore, the sludge is added to the sludge on the "other end" side. The pressure is higher than the "one end" side. Therefore, on the "other end" side, there is a possibility that sludge may leak out from the gap between the adjacent wires 2 (the slit of the screen). Therefore, in addition to moderately dewatering the sludge to be processed P, in order to prevent the sludge from being discharged to the outside of the cylindrical body before being transported to the dehydrated block discharge hole 20, the control device 6, The third sliding part 5c is controlled to move in the +y direction (positive y direction) in such a way that the maximum difference between the first interval Ga and the second interval Gb is approximately 0.1-2 mm, for example. That is, the sludge dewatering system 15 can control the size of the interval (screen slit) between adjacent wires 2 in accordance with the moisture content of the processed material P, so that the interval is from the "other end" of the wire 2 Towards the "one end" gradually becomes larger along the length direction. In other words, the sludge dewatering system 15 can control the size of the interval (screen slit) between adjacent wires 2 in accordance with the water content of the processed material P, so that the interval is from the "end" of the wire 2 toward " The other end" gradually becomes smaller along the length direction. Therefore, as long as a single curtain screen device is used, water can be appropriately and quickly removed from the sludge supplied to the "one end", and a dehydrated block can be obtained. Therefore, the sludge dewatering system 15 is not only an excellent CP value, but also a treatment system that can exert excellent sludge dewatering performance.

In addition, in this application example, although the curtain screen device 1B (second embodiment) provided with the third sliding portion 5c is used for description, the curtain screen device provided with the fourth sliding portion (second embodiment) is used. Modification of the method), it can also be a processing system with the above-mentioned excellent performance.

＜Application example 3＞ (Lubricant Supply System) The processing system of FIG. 16 uses the lubricant supply system 23 of the screen device 1B of the second embodiment. The processed material P in this system is sludge. The sludge is, for example, sludge dewatered by the sludge dewatering system 15 of Application Example 2, that is, a dehydrated block with low water content and high viscosity. The lubricant supply system 23 includes at least: a curtain screen device 10B; a storage tank 24 that is wrapped around the cylindrical body and has stored lubricant L; and is arranged on the outside of the cylindrical body for the The sludge pressure conveying device 25 is used to press the sludge from the "other end" to the "one end" onto the screen surface S of the cylinder; and to measure the water content of the sludge supplied to the cylinder Rate of moisture measuring device 13b. In this system, the shape of the third sliding portion 5c of the screen device 1B is the shape of the aforementioned "frustum-shaped tube". The shape of the to-be-processed material supply pipe 12b that supplies the sludge to the cylindrical body from the sludge pressure-feeding device 25 is a shape that gradually decreases in diameter toward the "other end" of the cylindrical body, but from the "other end" Insert into the inside of the cylindrical body. The outer diameter of the to-be-processed object supply pipe 12b is substantially the same size as the inner diameter of the cylindrical body at the "other end". The shape of the conveying pipe 26 used to discharge the sludge to which the lubricant L has adhered from the "end" of the cylindrical body and form a pipeline to convey the sludge to a predetermined treatment site, etc., is connected from the cylinder The shape of the "one end" of the body gradually expanding in diameter is inserted from the "one end" side so as to cover the outer surface of the cylindrical body. The inner diameter of the conveying pipe 26 at "one end" is substantially the same size as the outer diameter of the cylindrical body. The inner diameter may be set to be substantially the same size as the inner diameter of the movement restricting portion 8. The lubricant L is introduced into the storage tank 24 by the lubricant filling device 27. As long as the lubricant filling device 27 is arranged above the z direction of the storage tank 24, power such as pumps for conveying and pressurizing is no longer required, and the lubricant L can be filled by falling by gravity. Therefore, , Which can reduce operating costs. The lubricant L fully stored in the storage tank 24 penetrates into the interior of the cylindrical body from the interval (screen slit) between the adjacent wires 2 of the cylindrical body, and is coated on the cylindrical body. The surrounding area of the sludge being sent under pressure in the body. In addition, the material used as the lubricant is in powder or granular form, and is generally coated on the sludge in the state of a lubricant solution that has been dissolved in a liquid. However, in the lubricant supply system 23, even if the lubricant L is in the form of powder or granules, the lubricant L can be uniformly distributed linearly and continuously from the gaps of the wires 2 around the cylindrical body. And it is appropriately coated on the sludge, the lubricant L after contact with the sludge absorbs the water in the sludge, so it can become a liquid film of the lubricant solution coated on the surface of the sludge. Therefore, it is not necessary to use the lubricant at the beginning Prepare the lubricant L according to the state of the lubricant solution. That is, the lubricant L in the lubricant supply system 23 may be the lubricant solution, or the original state of the lubricant material in the form of powder or granules. If the original state of the lubricant material is used as the lubricant L, a device for generating a lubricant solution is not required, and therefore, the manufacturing cost and operating cost can be reduced.

The control device 6 of the curtain screen device 1B first receives the measurement result corresponding to the moisture content from the moisture measurement device 13b, and then controls the third sliding portion 5c to move in the y direction in accordance with the moisture content. Specifically, if the moisture content is lower than the predetermined value, the control device 6 controls the third sliding portion 5c to move in the +y direction (positive y direction) to expand the first interval Ga to be greater than the second interval Gb, In order to increase the area of the sludge coated with lubricant L. If the moisture content is higher than the predetermined value, the control device 6 controls the third sliding portion 5c to move in the -y direction (negative y direction) to narrow the first gap Ga and return to the predetermined distance. As described above, the shape of the to-be-processed material supply pipe 12b is a shape that gradually reduces its diameter toward the "other end" of the cylindrical body. Therefore, the pressure applied to the sludge on the "other end" side is relatively high. There is a concern that sludge may seep into the storage tank 24 from the interval between the adjacent wires 2 (screen slits). On the other hand, if lubricant L is applied around the sludge, the frictional resistance between the sludge and the wire 2 will be greatly reduced. Therefore, the sludge system can be smoothly transported to the "one end" through the cylinder. "side. Therefore, on the "one end" side, the space between adjacent wires 2 (screen slits) is expanded to be larger than the "other end" side and a larger amount of lubricant L is applied to the sludge. The frictional resistance between the sludge and the inner wall of the conveying pipe 26 when the conveying pipe 26 is used to convey the sludge is further reduced. Therefore, not only is it possible to transport the sludge with the conveying pipe 26 with low frictional resistance, but also to prevent the processed material P, that is, the sludge from being discharged into the cylinder before being pressed to the "end". Therefore, the control device 6 controls the third sliding portion 5c to face the +y direction in such a way that the maximum difference between the first gap Ga and the second gap Gb is approximately, for example, 0.1~1mm ( Positive y direction) to move. That is, the lubricant supply system 23 can control the size of the interval (screen slit) between adjacent wires 2 in accordance with the moisture content of the processed material P, so that the interval is from the "other end" of the wire 2 Towards the "one end" gradually becomes larger along the length direction. Therefore, the lubricant supply system 23 can appropriately apply the lubricant to the workpiece supplied to the "other end" as long as a single screen device is used. That is, the lubricant supply system 23 not only has an excellent CP value, but also has a good handling performance of coated lubricant, and can reduce the pressure and feed power and can improve the handling performance when the pipeline is used to transport the processed object.的处理系统。 The processing system.

In addition, in this application example, although the curtain screen device 1B (second embodiment) provided with the third sliding portion 5c is used for description, the curtain screen device provided with the fourth sliding portion (second embodiment) is used. Modification of the method), it can also be a processing system with the above-mentioned excellent performance.

＜Application example 4＞ (Incineration residue classification system) The processing system of FIG. 17 uses the incineration residue classification system 28 of the screen device 1A of the first embodiment. The to-be-processed object P in this system is the incineration residue after incineration through a waste incinerator 29 such as a hearth incinerator. The incineration residue grading system 28 has at least: a garbage incinerator 29; a discharge device 30, which accepts the incineration residue discharged from the garbage incinerator 29 after incineration of the waste. The incineration residue is cooled in water before being transported. Device (for example: belt conveyor, screw conveyor, chain conveyor, scraper conveyor, etc.) to discharge; and curtain screen device 1A that receives the incineration residue from the discharge device 30 and classifies it. It is also possible to configure another curtain screen device 1A below the curtain screen device 1A for further classification. The curtain screen device 1A is arranged so that the curtain screen surface S faces upward and is inclined downward from the "other end" to the "one end". In addition, the "other end" is used to receive the incineration residue discharged from the discharge device 30. The to-be-processed object P supplied to the "other end", that is, the incineration residue, is classified by its own weight while sliding on the screen surface S of the screen. Below the curtain screen device 1A, a classification container 32 capable of storing at least three types of classifications of liquid, small-diameter objects, and large-diameter objects is separately arranged. Although there is a high possibility that the large-diameter object is an incombustible object such as metal, the small-diameter object is often an unburnt object that can still be incinerated. Therefore, the control device 6 controls the belt conveyor etc. at any time. The conveying device 33 of the second embodiment puts the small-diameter object into the garbage hopper 31, and sends it to the garbage incinerator 29 to be burned again. In addition, although the classified liquid is waste liquid, in order to cool the exhaust gas generated by, for example, the waste incinerator 29, the liquid can be used to spray the exhaust gas to reuse the liquid.

The control device 6 controls the above-mentioned first interval Ga in accordance with the type of incineration residue received by the curtain screen device 1A. For example, if the incineration residue contains many unburned components, the control device 6 controls the first sliding portion 5a to move in the +z direction (positive z direction) so that the first interval Ga becomes larger than the second interval Gb. On the other hand, if there are many incombustibles (metals, etc.) in the incineration residue, the control device 6 controls the first sliding portion 5a to move in the -z direction (negative z direction) to narrow the first gap Ga. To the established distance above. In addition, the control device 6 controls the first sliding portion 5a to move toward the +z direction (positive z direction) in such a way that the maximum difference between the first gap Ga and the second gap Gb is approximately 30 to 50 cm, for example. mobile. That is, the incineration residue grading system 28 can control the size of the interval between adjacent wires 2 (screen slits) in accordance with the type of the incineration residue that is to be processed P, so that the interval is separated from the "in addition" of the wire 2 One end” toward the “one end” gradually becomes larger along the length direction. Therefore, as long as a single curtain screen device is used, water can be quickly removed from the processed material supplied to the "other end", and the classification can be performed. Therefore, the incineration residue classification system 28 not only has an excellent CP value, but is also a processing system that can exert excellent classification processing performance.

In addition, in this application example, although the screen device 1A (first embodiment) equipped with the first sliding portion 5a is used for description, the screen device (first embodiment) equipped with the second sliding portion 5b is used. The modification of the embodiment) can also be a processing system having the above-mentioned excellent performance.

Above, the embodiments, modifications, and application examples of the present invention have been described in detail with the drawings. However, specific configuration requirements are not limited to these embodiments, modifications, or application examples, and design changes and the like within the scope not departing from the gist of the present invention are also included. For example, it can also be made such that like the "one end", a sliding part is also arranged on the "other end" so that the control device 6 can change the structure of the second interval Gb. In this case, as long as the control device 6 expands the first gap Ga to be greater than the second gap Gb, the above-mentioned effects can be obtained. Not only that, but also the difference in the slits of the screen bars in the length direction of the wire 2 can be increased. The combination changes, so it can become a more excellent screen screen device or a processing system equipped with the screen screen device. Also, in this case, it is possible to easily control to make the first interval Ga and the second interval Gb the same interval.

1A, 1B: curtain screen device 2(2a, 2b): wire 3: Movement restriction 4(4a, 4b, 4c): locking part 41: Link arm 41a: The first connecting pin 41b: second connecting pin 5a: The first sliding part 5b: The second sliding part 5c: The third sliding part 6: Control device 7: Wedge 8: Movement restriction 9: Mobile agency 10: Inclusion removal system 11: drive device 12, 12a: The to-be-processed material introduction pipe 12b: To-be-processed material supply pipe 13, 13a, 13b: Moisture measuring device 14: Pillars or siding 15: Sludge dewatering system 16: shell 17: Spiral blade 18: Spiral shaft 19: To-be-processed material supply hole 20: De-cemented block discharge hole 21: Separation liquid discharge pipe 22: De-cemented block discharge pipe 23: Lubricant supply system 24: storage tank 25: Sludge pressure conveying device 26: Carrying tube 27: Lubricant filling device 28: Incineration residue classification system 29: Garbage incinerator (hearth incinerator) 30: Discharge device 31: Garbage feeding hopper 32: Grading container 33: Handling device C: Central axis of wire 2 S: Curtain screen P: Object to be processed Ga: first interval Gb: second interval O: The central axis of the cylinder L: Lubricant

Fig. 1 is a schematic diagram showing the structure of a flat screen device (having a first sliding part as a sliding part) of the first embodiment. [Fig. 2] is a plan view of the screen device of the first embodiment. [Fig. 3] It is a side view of the screen device of the first embodiment when viewed from one end side. Fig. 4 is a diagram showing the state before and after the screen device of the first embodiment executes the control to expand the interval between the first wire and the second wire. [Fig. 5] is a diagram showing the state before and after controlling the first interval to be greater than the second interval in the curtain screen device of the first embodiment. Fig. 6 is a schematic diagram when viewed from an xz plane in order to explain a screen device (having a second sliding part as a sliding part) of a modification of the first embodiment. Fig. 7 is a schematic diagram when viewed from the yz plane in order to explain a screen device (having a second sliding part as a sliding part) according to a modification of the first embodiment. [Fig. 8] is a schematic diagram when viewed from the xy plane in order to explain a screen device (having a second sliding part as a sliding part) of a modification of the first embodiment. Fig. 9 is a schematic diagram showing the structure of a cylindrical screen device (having a third sliding part as a sliding part) of the second embodiment. Fig. 10 is a cross-sectional view of the cylindrical body of the curtain screen device of the second embodiment. [Fig. 11] is a diagram showing the state before and after the screen device of the second embodiment executes the control to expand the gap between the first wire and the second wire. [Fig. 12] is a diagram showing the state before and after the first interval is controlled to be greater than the second interval in the curtain screen device of the second embodiment. Fig. 13 is a cross-sectional view showing another example of the cylindrical body of the screen device of the second embodiment. [Figure 14] is a schematic diagram showing the components of the processing system of Application Example 1. [Fig. 15] is a schematic diagram showing the constituent elements of the processing system of Application Example 2. [Fig. 16] is a schematic diagram showing the constituent elements of the processing system of Application Example 3. [FIG. 17] A schematic diagram showing the components of the processing system of Application Example 4.

1A: Curtain screen device

2(2a, 2b): wire

3: Movement restriction

4: Locking part

5a: The first sliding part

C: Central axis of wire 2

S: Curtain screen

P: Object to be processed

Ga: first interval

Gb: second interval

Claims (7)

A curtain screen device with: A linear first wire and a second wire equipped with a screen surface to be supplied with the object to be treated, and the central axes of which are kept parallel to each other; A first locking portion for movably locking each end of the first wire and the second wire; A second locking portion for movably locking the other end of each of the first wire and the second wire; A control device for controlling the interval between the aforementioned respective ends, that is, the first interval; and At one end of each of the foregoing, a sliding portion for pushing the foregoing first wire and the foregoing second wire; The aforementioned control device can change the aforementioned first interval to be greater than the aforementioned interval at the other end of each, that is, the second interval, In the cross section orthogonal to the screen surface of the screen, the shapes of the first wire and the second wire are both shapes that become thinner the farther away from the screen screen in the vertical direction, The sliding portion has a rod-shaped first sliding portion arranged between the first wire and the second wire in the cross section, and The aforementioned control device changes the aforementioned first interval to be greater than the aforementioned second interval by directing the first sliding portion toward the screen surface of the screen and traveling along the vertical direction. A curtain screen device with: A linear first wire and a second wire equipped with a screen surface to be supplied with the object to be treated, and the central axes of which are kept parallel to each other; A first locking portion for movably locking each end of the first wire and the second wire; A second locking portion for movably locking the other end of each of the first wire and the second wire; A control device for controlling the interval between the aforementioned respective ends, that is, the first interval; and At one end of each of the foregoing, a sliding portion for pushing the foregoing first wire and the foregoing second wire; The aforementioned control device can change the aforementioned first interval to be greater than the aforementioned interval at the other end of each, that is, the second interval, A plurality of the first wire and the second wire are alternately arranged to form a cylindrical body with the screen surface of the screen as the inner or outer surface, The sliding part is provided with a third sliding part in the shape of a truncated cone in which the outer diameter of the upper bottom is smaller than the inner diameter of the cylindrical body, and the outer diameter of the lower bottom is larger than the inner diameter of the cylindrical body, In the aforementioned control device, the aforementioned third sliding portion is inserted into the aforementioned cylindrical body from the aforementioned upper bottom, and the aforementioned first interval is changed to be greater than the aforementioned second interval. A curtain screen device with: A linear first wire and a second wire equipped with a screen surface to be supplied with the object to be treated, and the central axes of which are kept parallel to each other; A first locking portion for movably locking each end of the first wire and the second wire; A second locking portion for movably locking the other end of each of the first wire and the second wire; A control device for controlling the interval between the aforementioned respective ends, that is, the first interval; and At one end of each of the foregoing, a sliding portion for pushing the foregoing first wire and the foregoing second wire; The aforementioned control device can change the aforementioned first interval to be greater than the aforementioned interval at the other end of each, that is, the second interval, A plurality of the first wire and the second wire are alternately arranged to form a cylindrical body with the screen surface of the screen as the inner or outer surface, The sliding part is provided with: a fourth sliding part which is arranged on the outer circumference of the cylindrical body to limit the change in the inner diameter of the cylindrical body at the one end to a predetermined value or less, and is a medium At the wedge between the first wire and the second wire, The control device moves the fourth sliding portion along the axis of the cylindrical body to cut the wedge portion between the first wire and the second wire, and changes the first interval to be greater than the foregoing The second interval. A processing system, which has: The curtain screen device described in claim 2 or claim 3; A driving device that can make the aforementioned curtain screen device rotate around the outer circumference of the axis of the aforementioned cylindrical body; Used to supply the sludge used as the object to be treated to the object introduction pipe on the screen surface of the other end of the screen; and A moisture measuring device used to measure the moisture content of the aforementioned sludge, The aforementioned control device changes the aforementioned first interval in accordance with the aforementioned moisture content. A processing system, which has: The curtain screen device described in claim 2 or claim 3; Used to supply the sludge used as the above-mentioned to-be-treated object to the to-be-treated object introduction pipe on the screen surface of the aforementioned curtain at the one end; A screw shaft that is arranged inside the cylindrical body and is arranged on the axis of the cylindrical body, and is used to transport the sludge from the one end to the other end; and A moisture measuring device used to measure the moisture content of the aforementioned sludge, The aforementioned control device changes the aforementioned first interval in accordance with the aforementioned moisture content. A processing system, which has: The curtain screen device described in claim 2 or claim 3; A sludge pressure conveying device arranged on the outside of the cylindrical body to press the sludge as the to-be-treated object from the curtain screen surface at the other end to the curtain screen surface at the one end ;as well as A storage tank wrapped around the aforementioned curtain screen device and storing lubricant; and A moisture measuring device used to measure the moisture content of the aforementioned sludge, The control device changes the first interval in accordance with the moisture content, and supplies the lubrication between the first wire and the second wire around the sludge that will pass through the inside of the screen device. Agent. A processing system with: An incinerator used to incinerate waste and discharge incineration residues; A discharge device used to cool the aforementioned incineration residue and discharge it; and The curtain screen device according to claim 1, which is arranged to incline downward from the other end toward the one end, and the incineration residue is supplied to the other end by the discharge device, The control device changes the first interval according to the type of the incineration residue to classify the incineration residue.

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