JPH08117779A - Roll-like structure with communicating pores and manufacture thereof - Google Patents

Abstract

PURPOSE: To ensue appropriate applications such as filter media for drain- treatment, fillers for a mist separator or a scrubber and materials for cultivation and fish-growing by rolling up a sheet with communicating pores and adhering the terminal part of the rolled sheet to the surface of the roll. CONSTITUTION: A synthetic resin net (a sheet with communicating pores) 4 is spread over a slant plate 3 at the B part of a rolling-up machine 1, then one terminal side of the synthetic resin net 4 is raised by a sliding plate, and the sliding plate 2 slides on the roll 5. In this case, the synthetic resin net 4 is smoothly rolled up on the net from the tip to the following part, and is wound up when the sling plate 2 is stacked on the gradient plate 3. A heater 6 is deposited at a position (E point) where the synthetic resin net 4 is rolled up, and is caused to approach the rolled synthetic resin net 4. Thus the terminal side of the synthetic resin net 4 is heated to stick the terminal side to the surface of the roll of the synthetic resin net 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous material having communicating pores, and in particular, it has communicating vents which are suitable for use as a wastewater treatment material, a mist separator or scrubber filling material, a material for cultivation and aquaculture fisheries. The present invention relates to a roll-shaped structure and a manufacturing method thereof.

[0002]

2. Description of the Related Art Conventionally, wastewater treatment materials (filter materials) for purifying sewage discharged from kitchens and wastewater from various plants, fillers for mist separators and scrubbers, beds for cultivation and aquaculture A structure having continuous ventilation holes is used as a filter material for collecting seawater and various other buffer materials. There are various forms of this structure, and for example, hollow or solid spherical or angular large and small granular bodies, hollow or solid roll-shaped bodies, or in some cases block or sheet-shaped bodies are used.

Conventionally, a structure having the above-mentioned continuous ventilation hole has been manufactured as follows. That is, the chemical reaction is, for example, a method in which a foaming agent mixed in a condensation or polymerization raw material foams in the process of condensing or polymerizing the raw material to form an open-pore body, for example, in the case of polyurethane foam. Is mentioned. Depending on the sintering method,
For example, metal, glass, plastic, or other granular material is filled in a mold and heated to melt the contact parts of the particles and partially fuse them to form a molded product. Examples include processed products, sintered glass filter media, and plastic glass filter media. By the elution method, for example, components having different solubilities in water and other solvents are mixed and molded, and the molded product is treated with water and other solvents, and partially soluble components are eluted to be molded. Examples thereof include plastic filter media and natural products such as hechima. The sintering method or the elution method is generally suitable for manufacturing a structure having dense open pores, and is not suitable for manufacturing a structure having large pores. The hummer has large pores, but natural products cannot control the pores. Further, the chemical reaction has many problems in the conventional method for producing a structure having continuous ventilation holes, since it is difficult to control the shape and distribution of pores.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the conventional structure having continuous air holes and the manufacturing method thereof, and to provide a structure having continuous air holes whose pore shape and distribution can be adjusted. And to provide a manufacturing method thereof. In particular, the object of the present invention is excellent in wastewater treatment material (filter material) for purifying sewage, filler material for mist separators and scrubbers, beds for cultivation and aquaculture, seawater collection filter materials, and various other buffer materials. Another object of the present invention is to provide a roll-shaped structure having continuous ventilation holes showing practicality and a method for producing the same.

[0005]

Means for Solving the Problems The above-mentioned problems are described below in (1), preferably in (2), with a roll-like structure having continuous vents according to the present invention and (3), preferably in (4). This is achieved by the method for manufacturing the roll-shaped structure. That is, (1) a roll-shaped structure having continuous ventilation holes, characterized in that a sheet having continuous ventilation holes is wound in a roll shape, and an end portion of the roll-shaped sheet is adhered to the surface of the roll-shaped body. (2) The roll-shaped structure having continuous ventilation holes according to (1), wherein the sheet having continuous ventilation holes is a synthetic resin net, a non-woven fabric, a felt or a synthetic fiber woven fabric. (3) A roll winding machine having an inclined flat plate placed obliquely and a sliding plate horizontally placed behind the inclined flat plate whose rough surface is in contact with the top top edge side of the former and the top back surface of the latter. Using, put a sheet having continuous ventilation holes on the inclined flat plate,
By sandwiching one end of the sheet between the upper end side of the inclined flat plate and the tip back surface of the sliding plate that is in contact with it, and moving the sliding plate in the direction of the inclined flat plate, the rough plate of the inclined flat plate and the sliding plate is moved. A roll-shaped structure having continuous ventilation holes, characterized in that the sheet is rolled into a roll-shaped body between the surface and the surface, and the end side of the sheet is bonded to the surface of the roll-shaped body. Manufacturing method. (4) The method for producing a roll-shaped structure having continuous ventilation holes according to (3), wherein the sheet having continuous ventilation holes is a synthetic resin net, nonwoven fabric, felt or woven fabric made of synthetic fiber.

[0006]

The sheet having open pores of the present invention includes synthetic resin monofilament, twisted filament or twisted synthetic fiber net, synthetic fiber nonwoven fabric, woven cloth or felt, synthetic fiber paper (polystyrene paper). Etc.) can be mentioned. Hereinafter, the sheet having the continuous ventilation holes will be collectively referred to as a synthetic resin net. The synthetic resin net may be a synthetic resin net having various thicknesses and porosities depending on the thickness of the constituent monofilaments or fibers and the way of knitting or accumulating them. By winding the synthetic resin net in a roll shape and adhering it so that the winding end does not open, a roll-shaped structure having various ventilation diameters and various winding hardnesses and having continuous ventilation holes can be obtained. That is, the size of the voids in the structure can be adjusted also by the winding hardness of the roll-shaped body. Therefore, the size and distribution of the pores of the roll-shaped structure having the continuous ventilation holes of the present invention are determined by the thickness of the monofilaments and fibers constituting the synthetic resin net, the method of knitting or accumulating them (these are the thickness of the synthetic resin net). It can be adjusted by the winding hardness of the roll-shaped body around which it is rolled). Usually, a synthetic resin net having a thickness of 0.1 to 3.0 mm is preferably used.

1 and 2 show an example of a roll winding machine for a synthetic resin net according to the present invention. The drawings explain the structure of the roll winding machine and the synthetic resin net using the roll winding machine. An example of a winding step, that is, an example of a method for manufacturing a roll-shaped structure having continuous ventilation holes of the present invention will be described. FIG. 1 is a side view of a roll winding machine for a synthetic resin net of the present invention, and FIG. 2 is a plan view of a roll winding machine for a synthetic resin net of the present invention. Hereinafter, the roll winding machine of the synthetic resin net of the present invention is abbreviated as a roll winding machine. In FIG. 1 (and FIG. 2), the roll winding machine 1 is arranged in order from the right side of the drawing.
Sending part of slide plate 2 (A part), installation part of slant plate 3 (B part)
Part) and a product cutting part (C part). The back surface of the sliding plate 2 of the present invention is roughened so that slippage does not occur between the sliding plate 2 and the synthetic resin net when the synthetic resin net is rolled up and fed while the synthetic resin net is rolled up in the subsequent step. Is processed as. Further, in the portion A, the sliding plate 2 is placed on the roll 5 to make the feeding smooth.

A synthetic resin net 4 is spread and placed on the inclined plate 3 of the B part of the roll winding machine 1. At the D portion on the boundary between the A portion and the B portion of the roll winding machine 1, one end side of the synthetic resin net 4 placed on the inclined plate 3 slightly enters the A portion. The tip of the sliding plate 2 raises the end side, and the end side of the synthetic resin net 4 is wound on the net of the succeeding part as the sliding plate 2 is fed to the portion B. At this time, since the back surface of the sliding plate 2 (the surface in contact with the synthetic resin net 4) is roughened, no sliding occurs between the sliding plate 2 and the synthetic resin net 4, and the synthetic resin net 4 is
It is smoothly rolled from the tip onto the net in the trailing part. As the sliding plate 2 slides on the roll 5 and is fed from the portion A to the portion B, the winding diameter of the roll of the synthetic resin net 4 increases, so that the sliding plate 2 is normally fed while being kept substantially horizontal (sliding). It is desirable that the plate 2 be delivered while being kept horizontal, but it may be delivered with an inclination.). Normally, the synthetic resin net 4 rolls up when the sliding plate 2 overlaps the inclined plate 3. A heater 6 is placed at a position (point E) where the synthetic resin net 4 is rolled up, as shown in FIG. Is heated and adhered to the surface of the roll of synthetic resin net. The above is the operation of rolling the synthetic resin net of the present invention. The rolled roll-shaped body is transferred to the part C and, if necessary, cut into a required width.

The inclined plate 3 of the B section of the roll winding machine 1 described above.
The thickness of the rolled synthetic resin net 4 on the upper side can be adjusted by the length of the inclined plate 3 (the length of the synthetic resin net 4 placed thereon). Further, by changing the inclination angle of the inclined plate 3, the winding hardness of the completed roll-shaped body can be changed even if the synthetic resin net having the same thickness is used.

The roll-shaped body of the present invention is manufactured into a product having a required winding thickness and roll width depending on the intended use. For example, when it is used as a drainage treatment material or a scrubber filling material, it is cut into a width approximately the same as the thickness of the wound roll.

[0011]

EXAMPLES An example of a method for producing a roll-shaped structure having continuous ventilation holes by the roll winding machine of the synthetic resin net of the present invention will be described below with reference to Examples with reference to FIGS. 1 and 2. However, the present invention is not limited to the examples below.

Example 1 A monofilament having a square opening of 5 mm on a side and composed of a synthetic resin net is a polypropylene monofilament having a thickness of 1 mm, and a polypropylene having a width of 300 mm and a length of 500 mm made from the monofilament. The net 4 having a width of 330 mm and a length of 500 mm is placed on the inclined plate 3 which is inclined 5 degrees with respect to the horizontal plane.
Place one end of the net 4 at the point D near the top of the
330m wide with sandpaper with a roughness of 80 on the back
On the back surface of the sliding plate 2 having a length of m and a length of 1000 mm to which the sandpaper is attached, one end side of the net 4 is inclined at the point D at the point D.
Insert it between the tip of and. When the sliding plate 2 is slid on the rotating roll 5 and moved horizontally (sending out in the direction of the inclined plate 3), the polypropylene net 4 on the inclined plate 3 becomes
Along with the movement of the sliding plate 2, it was rolled up on the inclined plate 3 to form a roll-shaped porous body having a continuous ventilation hole and a diameter of 25 mm. The molded roll-shaped porous body is provided with an inclined plate 3
Was stopped at point E, the heater 6 was raised from the lower part, was brought into contact with the winding end of the roll-shaped porous body, and current was applied to fuse the winding-up end to the surface of the roll-shaped porous body. The roll-shaped porous body with the winding end fused to the surface was transferred to point C and cut with 19 cutting knife cutters set at 25 mm intervals, and the diameter was 25 mm and the length was 25 mm.
A porous filler of

[0013]

EFFECT OF THE INVENTION The size and distribution of pores can be obtained by forming a roll-like structure using a sheet having open pores easily available in the city, such as a synthetic resin net or synthetic fiber felt. It has become possible to manufacture a roll-shaped structure having freely-adjustable vent holes. The roll-shaped structure having continuous ventilation holes of the present invention is a wastewater treatment material (filtration material) for purifying wastewater, a mist separator or scrubber filler, a bed for cultivation or aquaculture, a seawater collection filter, and other various types. It has excellent practical performance as a cushioning material for

[Brief description of drawings]

FIG. 1 is a side view of a roll winding machine for a synthetic resin net according to the present invention.

FIG. 2 is a plan view of a roll winding machine for a synthetic resin net of the present invention.

[Explanation of symbols]

 1 Roll winding machine 2 Sliding plate 3 Slanting plate 4 Synthetic resin net 5 Roll 6 Heater A Sliding plate feeding part B Sloping plate installation part C Product cutting part D A and B boundary part E Sloping plate end part

Claims (4)

[Claims] 1. A roll-shaped structure having continuous ventilation holes, characterized in that a sheet having continuous ventilation holes is wound in a roll shape, and an end portion of the roll-shaped sheet is bonded to the surface of the roll-shaped body. 2. The roll-shaped structure having continuous ventilation holes according to claim 1, wherein the sheet having continuous ventilation holes is a synthetic resin net, a nonwoven fabric, a felt or a woven fabric made of synthetic fibers. 3. A roll winding machine, which comprises an inclined flat plate and a sliding plate having a back surface which is horizontally placed next to it and has a rough surface, wherein the top and top edges of the former are in contact with the leading back surface of the latter, A sheet having communication holes is placed on the inclined flat plate, and one end of the sheet is sandwiched between the upper end side of the inclined flat plate and the tip back surface of the sliding plate that contacts the inclined plate, and the sliding plate is oriented in the direction of the inclined flat plate. By moving, the sheet is rolled into a roll-shaped body between the inclined flat plate and the rough surface of the sliding plate, and the sheet is made into a roll-shaped body, and the end side of the sheet is bonded to the surface of the roll-shaped body. A method for manufacturing a roll-shaped structure having continuous air holes, comprising: 4. The method for producing a roll-shaped structure having continuous ventilation holes according to claim 3, wherein the sheet having continuous ventilation holes is a synthetic resin net, a non-woven fabric, a felt or a woven fabric made of synthetic fibers.