JP2022186520A - Filter paper belt processing device - Google Patents

Abstract

To provide a filter paper belt processing device which recovers a grinding liquid contained in a filter paper belt where a sludge is attached from the filter paper belt, and can separate the sludge without damaging the filter paper belt.SOLUTION: When a filter paper belt 22 and a sludge Sg are pressed between a pressing roller 14 and a rotating drum 12, a grinding liquid Fd contained in the filter paper belt 22 and the sludge Sg thereon is squeezed. Subsequently, when reaching a separation roller 16 having a diameter smaller than that of the rotating drum 12, the filter paper belt 22 is separated from the sludge Sg on an outer peripheral surface 12a with a radius of curvature smaller than that of the rotating drum 12 similar to the separation roller 16 by the separation roller 16, and the sludge Sg on the outer peripheral surface 12a falls down according to the gravity. Thereby, the grinding liquid Fd contained in the filter paper belt 22 is efficiently recovered, and the sludge Sg can be separated without damaging the filter paper belt 22.SELECTED DRAWING: Figure 1

Description

The present invention relates to a filter paper belt treatment apparatus for separating the working fluid contained in the filter paper belt used for purifying the working fluid of the grinder and the cutting machine, and the sludge adhering to the filter paper belt, respectively, from the filter paper belt.

In order to reuse the working fluid, an apparatus has been proposed that removes sludge contained in the used working fluid using a band-shaped filter paper belt. For example, the liquid filtration regeneration device described in Patent Document 1 is one of them.

The filter paper belt is a strip-shaped long filter rolled up. In the filtration regeneration device described in Patent Document 1, both sides of the concavely curved portion of the strip-shaped filter paper belt unwound from the roll are sandwiched between a pair of discs and the endless belt with eyes. Spent working fluid is permeated through the fed and so clamped filter paper belts such that sludge contained in the working fluid is captured by the filter paper belts. Then, the used filter paper belt is fed into the recovery box from its tip and recovered by the recovery box.

JP-A-2001-314703

However, in the filtration regeneration device described in Patent Document 1, a large amount of working fluid is taken out of the machine by the used filter paper belt, and the regeneration rate of the working fluid is low, and the filter paper belt is discharged together with sludge and the like. Since it cannot be treated as recyclable waste as it is, there is a problem that it is necessary to scrape off the sludge containing metal powder such as chips before disposal. In addition, if the strength of the filter paper belt is lowered due to the thickness or material of the filter paper belt, the filter paper belt may be torn, in which case the work of scraping off the sludge becomes even more difficult.

The present invention has been made against the background of the above circumstances, and its object is to recover the working liquid contained in the filter paper belt and the sludge from the filter paper belt to which sludge is adhered, and to remove the filter paper belt. To provide a filter paper belt processor capable of separating sludge without damaging it.

The gist of the first invention is (a) recovering the filter paper belt and the working liquid contained in the sludge from the filter paper belt to which sludge containing magnetic metal powder is adhered, and without damaging the filter paper belt. A filter paper belt processing apparatus capable of separating the sludge, comprising: (b) a rotating drum driven to rotate in one direction around a predetermined rotation center line; and (c) the rotating drum with the filter paper belt wound thereon. (d) a squeeze roller rotatably provided while pressing the filter paper belt at a position upstream in the rotational direction of the rotating drum from the uppermost position of the rotating drum; and (d) downstream from the uppermost position of the rotating drum in the rotating direction of the rotating drum. A separation roller provided at a side position and having a diameter smaller than that of the rotary drum separates the filter paper belt moved from the squeeze roller together with the rotary drum from the outer peripheral surface of the rotary drum.

The gist of the second invention is that in the first invention, the magnetic metal powder is fixedly provided inside the rotating drum, and the magnetic metal powder is applied to the pressing portion by the squeezing roller and the separating portion by the separating roller. It includes a magnet that generates a magnetic force that attracts the outer peripheral surface of the rotating drum.

The gist of the third invention is that in the first invention or the second invention, the squeezing roller is slidably contacted at a position on the upstream side in the rotation direction of the rotating drum from the portion pressed by the squeezing roller on the outer peripheral surface of the rotating drum. a working fluid chute plate that guides the working fluid flowing down along the outer peripheral surface of the rotating drum away from the outer peripheral surface of the rotating drum, and a working fluid recovery box that receives the working fluid dropping from the working fluid chute plate. and

The gist of the fourth invention is that in any one of the first to third inventions, a winding roller for winding the filter paper belt and applying tension to the filter paper belt, and a separation roller and a guide roller for guiding the filter paper belt separated from the outer peripheral surface of the rotating drum to the take-up roller.

The gist of the fifth invention is that, in any one of the first invention to the fourth invention, the rotation direction of the rotary drum is downstream of the part separated by the separation roller on the outer peripheral surface of the rotary drum. a sludge chute plate that is in sliding contact with a position and guides the sludge carried along with the outer peripheral surface of the rotating drum away from the outer peripheral surface of the rotating drum; and a sludge collection box that receives the sludge dropped from the sludge chute plate. ,

According to the filter paper belt processing apparatus of the first invention, after the filter paper belt is pressed between the squeezing roller and the rotating drum, the filter paper belt moves along with the outer peripheral surface of the rotating drum, passes through the uppermost position of the rotating drum, and passes through the uppermost position of the rotating drum. When the filter paper belt is pressed between the squeezing roller and the rotating drum in the process of being separated from the outer peripheral surface of the rotating drum by the separation roller positioned downstream in the rotation direction of the rotating drum, the filter paper belt and sludge on it are removed. The machining fluid contained in is squeezed out. After being pressed, the filter paper belt moves together with the outer peripheral surface of the rotating drum and is separated from the outer peripheral surface of the rotating drum by the separating roller. When pulled apart, the sludge on the outer peripheral surface will fall according to gravity. As a result, the working liquid contained in the filter paper belt can be efficiently recovered, and the sludge can be separated without damaging the filter paper belt.

According to the filter paper belt processing apparatus of the second aspect of the invention, the magnetic metal powder is fixedly provided inside the rotating drum, and the magnetic metal powder is applied to the rotating drum at the pressing portion by the squeezing roller and the separating portion by the separating roller. a magnet that generates a magnetic force that attracts the outer peripheral surface of the As a result, the magnetic force of the magnet suppresses the sludge from flowing down at the portion pressed by the squeeze roller, and the magnetic force of the magnet separates the sludge from the filter paper belt to the outer peripheral surface of the rotating drum at the portion separated by the separating roller. Since it is held on the outer peripheral surface of the rotating drum, the working liquid contained in the filter paper belt can be efficiently recovered, and the sludge can be preferably separated without damaging the filter paper belt.

According to the filter paper belt processing apparatus of the third aspect of the invention, the rotating drum is slidably contacted at a position on the upstream side in the rotation direction of the rotating drum from the portion pressed by the squeezing roller on the outer peripheral surface of the rotating drum, and from the portion pressed by the squeezing roller to the rotating drum a working fluid chute plate that guides the working fluid flowing down along the outer peripheral surface of the rotating drum away from the outer peripheral surface of the rotating drum; and a working fluid recovery box that receives the working fluid falling from the working fluid chute plate. As a result, the machining fluid that tends to flow down along the outer peripheral surface of the rotating drum is efficiently recovered in the machining fluid recovery box.

According to the filter paper belt processing apparatus of the fourth aspect of the invention, the filter paper belt is separated from the outer peripheral surface of the rotating drum by the winding roller for winding the filter paper belt and applying tension to the filter paper belt, and the separation roller. to the take-up roller. As a result, the filter paper belt from which the sludge has been efficiently separated is taken up by the take-up roller and collected.

According to the filter paper belt processing apparatus of the fifth aspect of the invention, the filter paper belt processing apparatus is in sliding contact with a position on the downstream side in the rotational direction of the rotating drum from the separating portion of the outer peripheral surface of the rotating drum by the separating roller, and is in contact with the outer peripheral surface of the rotating drum. a sludge chute plate for guiding the sludge conveyed to the drum away from the outer peripheral surface of the rotating drum; and a sludge collection box for receiving the sludge falling from the sludge chute plate. As a result, the sludge adhering to the outer peripheral surface of the rotary drum is not carried in the rotating direction of the rotary drum and dropped into the processing liquid recovery box, and the sludge carried together with the outer peripheral surface of the rotary drum is efficiently sludged. Collected in the collection box.

BRIEF DESCRIPTION OF THE DRAWINGS It is the schematic explaining the structure of the filter paper belt processing apparatus of one Example of this invention. FIG. 2 is a schematic diagram illustrating the configuration of a filter paper belt processing apparatus according to another embodiment of the present invention, corresponding to FIG. 1; FIG. 2 is a schematic diagram illustrating the configuration of a filter paper belt processing apparatus according to still another embodiment of the present invention, corresponding to FIG. 1;

An embodiment of the present invention will now be described in detail with reference to the drawings. In the following examples, the drawings are appropriately simplified or modified, and the dimensional ratios, shapes, etc. of each part are not necessarily drawn accurately.

FIG. 1 is a schematic diagram illustrating the configuration of a filter paper belt processing apparatus 10, omitting a machine frame, a driving device, and the like. In FIG. 1, the rotary drum 12 is rotatably supported by a machine frame (not shown) around a horizontal centerline of rotation C1, and driven to rotate in one rotation direction A1 by a drive device (not shown). The portion of the rotary drum 12 shown in FIG. 1 is a cross section of a portion formed of a cylindrical body made of non-magnetic metal such as stainless steel plate or copper alloy plate.

The filter paper belt processing apparatus 10 includes a squeezing roller 14 supported by a machine frame (not shown) rotatably about a rotation center line parallel to the rotation center line C1 of the rotary drum 12, a separating roller 16, a guide roller 18, and a winding roller. A take-up roller 20 is provided. The separation roller 16 is set to have a diameter sufficiently smaller than that of the rotating drum 12 so that the sludge Sg can be preferably separated from the filter paper belt 22 which has a small diameter wound around the separation roller 16 .

The squeezing roller 14 is located upstream of the uppermost position P1 of the outer peripheral surface 12a of the rotating drum 12 in the rotation direction A1 of the rotating drum 12 in a state where the filter paper belt 22 is wound around the filter paper belt 14. A pair of bearings (not shown) rotatably supporting the squeeze roller 14 are urged toward the rotary drum 12 by, for example, a spring or a pneumatic cylinder so that the roller 22 is pressed against the outer peripheral surface 12a of the rotary drum 12. there is An angle θa between a vertical line L1 passing through the rotation center line C1 of the rotary drum 12 and a straight line L2 passing through the rotation center line C1 of the rotary drum 12 and the rotation center of the squeeze roller 14 is 15 degrees smaller than 45 degrees. greater than The portion pressed by the squeeze roller 14 is located at the intersection of the straight line L2 and the outer peripheral surface 12a of the rotary drum 12. As shown in FIG.

The separating roller 16 is provided at a downstream position in the rotation direction A1 of the rotating drum 12 from the uppermost position of the outer peripheral surface 12a of the rotating drum 12, and the filter paper belt 22 moved from the squeeze roller 14 together with the outer peripheral surface 12a of the rotating drum 12. , away from the outer peripheral surface 12a of the rotating drum 12, ie, obliquely upward in this embodiment. An angle θb between a vertical line L1 passing through the rotation center line C1 of the rotary drum 12 and a straight line L3 passing through the rotation center line C1 of the rotary drum 12 and the rotation center of the separation roller 16 is greater than 45 degrees and 90 degrees. less than degrees. The separating portion by the separating roller 16 is located at the intersection of the straight line L3 and the outer peripheral surface 12a of the rotary drum 12. As shown in FIG.

The guide roller 18 guides the filter paper belt 22 , which has been deflected by the separating roller 16 , to the take-up roller 20 which is positioned lower than the rotational center line C 1 of the rotary drum 12 and the separating roller 16 . The take-up roller 20 is rotationally driven by a driving device (not shown) and takes up the filter paper belt 22 from which the sludge Sg has been removed.

Inside the rotating drum 12, a plurality of magnets 24, which are permanent magnets or electromagnets, are fixedly arranged on a machine frame (not shown). The plurality of magnets 24 generate a magnetic force that attracts the sludge Sg to the outer peripheral surface 12a of the rotating drum 12 at least at the pressing portion of the squeeze roller 14 and the separation portion of the filter paper belt 22 by the separation roller 16 .

The filter paper belt 22 is a non-woven fabric made of natural fibers or synthetic fibers, such as rayon fibers or polyester fibers, and is a long filter material formed into a belt shape with a predetermined thickness. The sludge Sg is deposited on the filter paper belt 22 by filtering the dirty grinding fluid (dirty fluid) Fd discharged from the grinding machine, for example, in a paper filter device. It contains a mixture of magnetic metal powder generated from a magnetic work material, abrasive grains generated from a grinding wheel, and crushed powder of a binding material.

A grinding fluid chute plate (working fluid chute plate) 26 is provided on the outer peripheral surface 12 a of the rotary drum 12 further upstream in the rotational direction A<b>1 than the pressing portion of the squeezing roller 14 . The grinding fluid chute plate 26 is in sliding contact with the outer peripheral surface 12a and directs the grinding fluid (processing fluid) Fd that flows down along the outer peripheral surface 12a from the pressing portion of the squeeze roller 14 to an oblique downward direction away from the outer peripheral surface 12a of the rotary drum 12. , and the grinding fluid Fd is dropped into a grinding fluid recovery box (processing fluid recovery box) 28 arranged directly below the lower end of the grinding fluid chute plate 26 .

Below the rotary drum 12 is a sludge collection box 30 for receiving the sludge Sg falling from the downstream side in the rotational direction A1 of the part of the outer peripheral surface 12a of the rotary drum 12 where the filter paper belt 22 is separated by the separating roller 16. are placed. The sludge collection box 30 of this embodiment has an opening with a horizontal dimension that includes the separating roller 16 and the outer peripheral surface 12a of the rotating drum 12. As shown in FIG.

In the filter paper belt processing apparatus 10 configured as described above, the filter paper belt 22 passes through the squeeze roller 14, the rotating drum 12, the separation roller 16, the guide roller 18, and the take-up roller 20 as shown in FIG. be wound up. In this process, when the filter paper belt 22 is pressed between the squeezing roller 14 and the rotating drum 12, the grinding fluid Fd contained in the filter paper belt 22 and the sludge Sg on it is squeezed out. The squeezed grinding fluid Fd flows down the outer peripheral surface 12 a of the rotary drum 12 and the grinding fluid chute plate 26 and is received in the grinding fluid recovery box 28 . The sludge Sg from which the grinding fluid Fd has been squeezed out and the filter paper belt 22 rotate together with the outer peripheral surface 12a of the rotating drum 12, and when they reach the separating roller 16, the filter paper belt 22 is removed by the separating roller 16 from the sludge Sg on the outer peripheral surface 12a. pulled away from While the filter paper belt 22 is taken up by the take-up roller 20 via the guide roller 18 , the sludge Sg on the outer peripheral surface 12 a drops due to gravity and is received by the sludge collection box 30 .

As described above, the filter paper belt processing apparatus 10 of the present embodiment recovers the grinding fluid Fd contained in the filter paper belt 22 and the sludge Sg from the filter paper belt 22 to which the sludge Sg containing magnetic metal powder is adhered, and The sludge Sg can be separated without damaging the belt 22, and the rotary drum 12 is driven to rotate in one direction around a predetermined rotation center line C1, and the rotary drum 12 is positioned above the uppermost position P1 with the filter paper belt 22 wound thereon. A squeezing roller 14 provided rotatably while pressing the filter paper belt 22 at a position on the upstream side in the rotational direction A1 of the rotary drum 12, and a squeezing roller 14 provided at a position downstream in the rotational direction A1 of the rotary drum 12 from the uppermost position P1. 14 and a stripping roller 16 having a smaller diameter than the rotating drum 12 for stripping the filter paper belt 22 moved with the rotating drum 12 from the outer peripheral surface 12 a of the rotating drum 12 .

According to the filter paper belt processing apparatus 10 described above, after the filter paper belt 22 is pressed between the squeeze roller 14 and the rotating drum 12, it moves together with the outer peripheral surface 12a of the rotating drum 12 to reach the uppermost position of the rotating drum 12. is separated from the outer peripheral surface 12a of the rotating drum 12 by the separating roller 16 positioned downstream in the rotating direction A1 of the rotating drum 12 via the . In this process, when the filter paper belt 22 is pressed between the squeeze roller 14 and the rotating drum 12, the grinding fluid Fd contained in the filter paper belt 22 and the sludge Sg on it is squeezed out. Next, when reaching the separating roller 16 with a diameter smaller than that of the rotating drum 12, the filter paper belt 22 is separated from the sludge Sg on the outer peripheral surface 12a by the separating roller 16 with a radius of curvature smaller than that of the rotating drum 12 similar to the separating roller 16. The separated sludge Sg on the outer peripheral surface 12a falls according to gravity. As a result, the grinding fluid Fd contained in the filter paper belt 22 can be efficiently recovered, and the sludge Sg can be separated without damaging the filter paper belt 22 .

In addition, according to the filter paper belt processing apparatus 10 of the present embodiment, the sludge is disposed inside the rotating drum 12 at a fixed position, and the sludge is generated at the pressing portion by the squeezing roller 14 and at the portion where the filter paper belt 22 is separated by the separating roller 16. A magnet 24 that generates a magnetic force that attracts the magnetic metal powder contained in the Sg to the outer peripheral surface 12 a of the rotating drum 12 is included. As a result, the magnetic force of the magnet 24 prevents the sludge Sg from flowing down at the portion pressed by the squeeze roller 14, and the magnetic force of the magnet 24 prevents the sludge from flowing down from the filter paper belt 22 at the portion where the separation roller 16 separates the filter paper belt 22. Since Sg is pulled away from the outer peripheral surface 12a of the rotating drum 12 and held on the outer peripheral surface 12a of the rotating drum 12, the grinding fluid Fd contained in the filter paper belt 22 is efficiently collected and the filter paper belt 22 is not damaged. Sludge Sg can be preferably separated without

Further, according to the filter paper belt processing apparatus 10 of the present embodiment, the squeezing roller 14 is brought into sliding contact with the position on the upstream side in the rotation direction A1 of the rotating drum 12 from the pressing portion of the squeezing roller 14 on the outer peripheral surface 12a of the rotating drum 12. A grinding fluid chute plate 26 that guides the grinding fluid Fd flowing down along the outer peripheral surface 12a of the rotating drum 12 from the pressed portion away from the outer peripheral surface 12a of the rotating drum 12, and receives the grinding fluid Fd dropping from the grinding fluid chute plate 26. and a grinding liquid recovery box 28 . As a result, the grinding fluid Fd does not flow downward along the outer peripheral surface 12a of the rotary drum 12, and the grinding fluid Fd that is about to flow down along the outer peripheral surface 12a of the rotary drum 12 can be efficiently discharged into the grinding fluid recovery box 28. recovered within.

Further, according to the filter paper belt processing apparatus 10 of the present embodiment, the filter paper belt 22 is separated from the outer peripheral surface 12a of the rotating drum 12 by the take-up roller 20 that takes up the filter paper belt 22 and applies tension to the filter paper belt 22, and the separating roller 16. and a guide roller 18 for guiding the folded filter paper belt 22 to the take-up roller 20 . As a result, the filter paper belt 22 from which the sludge Sg has been efficiently separated is taken up by the take-up roller 20 and collected.

Next, another embodiment of the filter paper belt processing apparatus 50 of the present invention will be described with reference to FIG. In addition, below, the same code|symbol is attached|subjected to the part which is common in the above-mentioned Example 1, and description is abbreviate|omitted.

Unlike the filter paper belt processing apparatus 10 of the first embodiment, the filter paper belt processing apparatus 50 of this embodiment includes a sludge chute plate 52 and a sludge collection box 54 for receiving the sludge Sg falling from the sludge chute plate 52. are different, and the others are similar. A filter paper belt processing apparatus 50 of this embodiment includes a grinding liquid chute plate 26 and a grinding liquid recovery box 28 in the same manner as the filter paper belt processing apparatus 10 of the first embodiment.

In the filter paper belt processing apparatus 50 of the present embodiment, the outer peripheral surface 12a of the rotating drum 12 is in sliding contact with a position downstream of the separating roller 16 in the rotation direction A1 of the rotating drum 12, and the outer peripheral surface 12a of the rotating drum 12 A sludge chute plate 52 for guiding the sludge Sg carried along with it away from the outer peripheral surface 12a of the rotary drum 12, and a sludge collection box 54 for receiving the sludge Sg falling from the sludge chute plate 52 are provided.

According to the filter paper belt processing apparatus 50 of the present embodiment, the sludge Sg attached to the outer peripheral surface 12a of the rotating drum 12 is carried in the rotating direction of the rotating drum 12 and does not drop into the grinding liquid recovery box 28. The sludge Sg carried along with the outer peripheral surface 12a of the rotary drum 12 is efficiently recovered in the sludge recovery box 54. - 特許庁

Next, another embodiment of the filter paper belt processing apparatus 80 of the present invention will be described with reference to FIG. In addition, below, the same code|symbol is attached|subjected to the part which is common in the above-mentioned Example 2, and description is abbreviate|omitted.

The filter paper belt processing apparatus 80 of this embodiment differs from the filter paper belt processing apparatus 50 of the above-described second embodiment in that the grinding liquid chute plate 26 is removed. The grinding liquid recovery box 28 of this embodiment has an opening dimension that sufficiently covers the radius of the rotary drum 12 from directly below the lowest position (lowest point) P2 of the outer peripheral surface 12a of the rotary drum 12. As shown in FIG.

In the filter paper belt processing apparatus 80 of the present embodiment as well, effects similar to those of the filter paper belt processing apparatus 10 of the first embodiment and the filter paper belt processing apparatus 50 of the second embodiment can be obtained.

Although the present invention has been described in detail with reference to the tables and drawings, the present invention can also be implemented in other modes and various modifications can be made without departing from the scope of the invention.

For example, in the filter paper belt processing apparatuses 10, 50, and 80 of the above-described embodiments, the magnet 24 is positioned inside the rotating drum 12 at the pressing portion of the squeeze roller 14 against the rotating drum 12, and at the filter paper belt 22 by the separation roller 16. are provided inside the rotary drum 12 at the positions separated from the outer peripheral surface 12a of the rotary drum 12, but at least one of the magnets 24 provided at those positions is not necessarily provided. good.

Further, the positions at which the grinding liquid chute plate 26 and the sludge chute plate 52 are provided may not necessarily be those shown in FIG. may be provided so as to extend downward from the lowermost position P2 of the outer peripheral surface 12a of the rotary drum 12. As shown in FIG.

Further, in the filter paper belt processing apparatuses 10, 50, and 80 of the above-described embodiments, the grinding fluid Fd discharged from the grinder is filtered and the filter paper belt 22 is processed. It may be one that filters the cutting fluid that is applied. In short, anything that processes the working liquid used in the cutting machine or the grinding machine may be used.

It should be noted that what has been described above is merely an embodiment of the present invention, and the present invention can be modified in various ways without departing from the scope of the invention.

10, 50, 80: Filter paper belt processing device 12: Rotating drum 12a: Outer peripheral surface 14: Squeezing roller 16: Separating roller 18: Guide roller 20: Winding roller 22: Filter paper belt 24: Magnet 26: Grinding liquid chute plate ( machining fluid chute plate)
28: Grinding fluid recovery box (machining fluid recovery box)
30, 54: Sludge collection box 52: Sludge chute plate C1: Rotation center line Sg: Sludge Fd: Grinding fluid (working fluid)

Claims (5)

A filter paper belt processing apparatus capable of recovering a working liquid contained in the filter paper belt and the sludge from the filter paper belt to which sludge containing magnetic metal powder is adhered, and separating the sludge without damaging the filter paper belt, ,
a rotating drum driven to rotate in one direction around a predetermined rotation center line;
a squeeze roller rotatably provided while pressing the filter paper belt at a position on the upstream side in the rotation direction of the rotating drum relative to the uppermost position of the rotating drum in a state where the filter paper belt is wound around the rotating drum;
A smaller diameter than the rotary drum, which is provided at a position downstream of the uppermost position of the rotary drum in the rotation direction of the rotary drum, and separates the filter paper belt that has moved together with the rotary drum from the squeeze roller from the outer peripheral surface of the rotary drum. and a separation roller. a magnet that is fixedly provided inside the rotating drum and generates a magnetic force that attracts the magnetic metal powder to the outer peripheral surface of the rotating drum at a pressing portion by the squeeze roller and a separating portion by the separating roller; 2. The filter paper belt processor of claim 1, comprising: . The working fluid is in sliding contact with a position on the upstream side in the rotation direction of the rotating drum from the portion pressed by the squeeze roller on the outer peripheral surface of the rotary drum, and flows down along the outer peripheral surface of the rotary drum from the portion pressed by the squeeze roller. a machining fluid chute plate guided away from the outer peripheral surface of the rotating drum;
3. The filter paper belt processing apparatus according to claim 1, further comprising a working liquid recovery box that receives the working liquid falling from the working liquid chute plate. a winding roller for winding the filter paper belt and applying tension to the filter paper belt;
The filter paper belt processing according to any one of claims 1 to 3, further comprising a guide roller for guiding the filter paper belt separated from the outer peripheral surface of the rotating drum by the separation roller to the take-up roller. Device. The sludge carried along with the outer peripheral surface of the rotating drum is slidably contacted at a position downstream of the outer peripheral surface of the rotating drum in the direction of rotation of the rotating drum relative to the part separated by the separating roller. a sludge chute plate guiding away from the surface;
and a sludge collection box for receiving the sludge dropped from the sludge chute plate.

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