JP4445352B2 - Purification zone manufacturing method, purification zone, and purification zone assembly - Google Patents

Description

  The present invention relates to a method for producing a purification zone, a purification zone, and a purification zone assembly used to purify sewage such as industrial wastewater, water and sewage, and river water.

  As a sewage purification apparatus for purifying sewage such as industrial wastewater, water and sewage, river water, etc., there is one having a purification zone (for example, see Patent Document 1).

  The purification zone of the sewage purification apparatus shown in Patent Document 1 extends a plurality of perforated columns formed in a triangular shape with a porous sponge or the like in a horizontal direction with respect to both surfaces of the water guide sheet. In addition, it is affixed in multiple stages with a certain interval in the vertical direction. That is, a narrowed section is formed between the porous columns by facing the portions where the cross-sectional shape of the porous columns is narrowed and pasted at a required interval, from the upper porous column to the lower porous column. When the sewage flows down, the sewage is exposed to the air by passing through the constricted portion. And the sewage purification apparatus is comprised by arrange | positioning the said purification zone | vertical vertically at a required space | interval in the shape of a curtain.

In such a sewage purification apparatus, microorganisms adhere to the porous column of the purification zone, and the sewage flows down along the water conveyance sheet. The sewage is soaked and retained in the porous column (water retention capability is maintained), and the sewage is purified by microorganisms adhering to the porous column. Further, in the above configuration, oxygen is taken in by contacting with air when the sewage flows down through the constriction provided between the porous columns, so that the ability to decompose and purify sewage by microorganisms is enhanced. ing.
JP-A-10-263578

  According to Patent Document 1, the sewage that permeates and flows down into each multi-stage porous column is decomposed and purified by microorganisms attached to the porous column, but at this time, in order to enhance the purification effect of the sewage by the microorganisms It is necessary to effectively bring the sewage into contact with air while the sewage flows down from the upper porous column to the lower porous column. For this reason, in patent document 1, the constriction part (part in which a porous column body does not exist) is provided between the upper and lower porous columns, and the contact with air is heightened. For this reason, in patent document 1, the narrow part is formed by affixing the triangular column-shaped porous column body to a water guide sheet at intervals.

  However, as mentioned above, it is very difficult and time-consuming to attach to the water guide sheet accurately so that the intervals between the porous columns are constant and each porous column is linear. Since the property is low, the purification zone has a problem of high cost.

  In order to increase the sewage treatment capacity of the sewage purification apparatus, it is effective to increase the installation density of the porous columns per unit volume. For this purpose, the purification zones should be spaced as narrow as possible without contacting the porous columns. It is preferable to place them close to each other. In this case, if it can arrange | position so that the triangular top part of the porous column body adjacent to the V-shaped groove part formed between the upper and lower porous column bodies may fit, the installation density of a porous column body can be raised. However, in order to arrange with higher installation density in this way, as described above, if the accuracy of fixing the porous columnar body to the water guide sheet is not maintained high, the porous columnar bodies in the adjacent purification zone contact each other. Therefore, there is a possibility that the sewage flow rate will be increased without sufficient contact between the sewage and the air, and the sewage treatment capacity may be reduced.

  For this reason, in the conventional purification zone, the purification columns are arranged with an interval between the purification zones so that they do not come into contact with each other. Therefore, the sewage treatment capacity of the sewage purification apparatus can be significantly increased. There wasn't.

  The present invention has been made in view of the above circumstances, and it is possible to easily and efficiently manufacture the purification zone with high accuracy, and further increase the arrangement density of the purification zone to increase the sewage treatment capacity. The purpose of the present invention is to provide a purification zone manufacturing method, a purification zone, and a purification zone assembly.

  The invention according to claim 1 is a sheet-like foam material comprising a continuous chevron foam having an uneven surface on one side and a flat surface on the other side, in which a plurality of projecting portions extending in parallel are connected by a thin portion. It is a manufacturing method of a purification zone formed by profile processing, and fixing the flat surface of the above-mentioned continuous chevron foam to a maintenance sheet.

  The invention according to claim 2 is the method for producing a purification band according to claim 1, wherein the flat surface of the continuous chevron foam is fixed to a holding sheet with an adhesive.

  The invention according to claim 3 is characterized in that the thin wall portion of the continuous chevron foam fixed to the holding sheet is filled with a sealer from the uneven surface side to break the pore structure of the thin wall portion. It is a manufacturing method of a purification zone.

  When the flat surface of the continuous chevron foam is fixed to the holding sheet with an adhesive, the thickness of the thin part of the continuous chevron foam is filled with the adhesive in the pores of the thin part. The method for producing a purification zone according to claim 2, wherein the thickness is such that the pore structure is broken.

  In the invention according to claim 5, the low-viscosity adhesive is concentrated between the continuous chevron foam and the holding sheet so as to correspond to the back surface of the thin portion on the flat surface of the continuous chevron foam, 3. The method for producing a purification zone according to claim 2, wherein the adhesive is spread evenly between the holding sheets, and the pore structure is broken by impregnating the thin portion with the adhesive.

  The invention according to claim 6 is characterized in that the thin-walled portion of the continuous chevron foam is melted and fixed to the holding sheet by applying a heating member from the uneven surface side to apply heat to the thin-walled portion. A method for producing a purification zone as described in 1. above.

  The invention according to claim 7 is characterized in that when the thin portion of the continuous chevron foam is melted by the heating member and fixed to the holding sheet, the pore structure of the thin portion is melted and broken by the heat of the heating member. Item 7. A method for producing a purification zone according to Item 6.

  According to an eighth aspect of the present invention, there is provided a continuous chevron foam having a concavo-convex surface on one side and a flat surface on the other side, in which a plurality of projecting portions extending in parallel are connected by a thin portion, and the continuous chevron foam And a holding sheet that fixes the flat surface of the cleaning zone.

  The invention according to claim 9 is the purification zone according to claim 8, wherein the protrusion has a substantially trapezoidal shape.

  The invention according to claim 10 is the purification zone according to claim 8 or 9, wherein the thin portion of the continuous chevron foam 1 is provided with a fracture portion of a pore structure.

  The invention according to claim 11 is the purification according to any one of claims 8 to 10, wherein the continuous chevron foam is a polyurethane-based, polypropylene-based, or polyethylene-based open-cell sponge. It is a belt.

  The invention according to claim 12 is characterized in that continuous chevron foams are fixed to both surfaces of the holding sheet so that one and the other protrusions are symmetrical to each other. It is a purification zone as described in.

  The invention according to claim 13 is characterized in that continuous chevron foams are fixed to both surfaces of the holding sheet so that one protrusion corresponds to the other thin part. It is a purification zone described in one.

  The invention according to claim 14 is the purification zone according to any one of claims 8 to 13, wherein the holding sheet is a synthetic resin plate.

  In the invention according to claim 15, a continuous chevron foam having an uneven surface on one side and a flat surface on the other side, in which a plurality of projecting portions extending in parallel are connected by a thin wall portion, is provided via the flat surface. The purification zone is formed by fixing the both sides of the holding sheet with an adhesive, and the protruding portion of one purification zone corresponds to the thin portion of the other purification zone, and the thin portion of the one purification zone is adjacent. A purification zone assembly characterized in that a plurality of purification zones are arranged close to each other so as to correspond to protrusions of other purification zones.

  According to the present invention, in the production of the continuous chevron foam for forming the purification zone, the continuous chevron foam is formed from the plate-like foam material by profile processing, so that the plurality of protrusions are connected by the thin part. There is an effect that a continuous chevron foam having a required shape and a required size can be easily manufactured with high accuracy and with high efficiency.

  In the production of the purification zone, the flat surface of the continuous chevron foam is fixed to the holding sheet with an adhesive, or the thin part is melted and fixed to the holding sheet by applying heat to the thin part and applying heat. Only by doing this, there is an effect that a purification zone in which the accuracy of the interval between the protruding portion and the thin-walled portion is well maintained can be manufactured with high efficiency.

  Also, fill the thin-walled portion of the continuous chevron foam with a sealer from the uneven surface side to break the pore structure of the thin-walled portion, break the pore structure of the thin-walled portion by impregnation with adhesive, or correspond to the back surface of the thin-walled portion The low-viscosity adhesive is concentrated on the thin-walled pore structure by impregnation with the adhesive, or the thin-walled portion of the continuous chevron foam is heated by applying a heating member from the uneven surface side to the thin-walled portion. Since the pore structure is melted and broken, there is an effect that a suitable treatment speed can be maintained by slowing the falling speed of the water impregnated in the continuous chevron foam and flowing down.

  In addition, the adjacent purification band has a shape in which the protruding portion and the thin portion are fitted to each other without a gap, and therefore, by stacking the purification zones so that the protruding portion and the thin portion are fitted. The purification zone can be transported with a minimum volume and high efficiency.

  In the manufacture of the purification zone assembly, the purification zone is configured by supporting the purification zone so that the protrusion of the purification zone corresponds to the thin portion of the adjacent purification zone. It is possible to arrange the purification zones close together so that they fit into the groove-shaped part by means of this, so that the installation density of continuous chevron foam can be increased and the sewage treatment capacity by the purification zone assembly can be significantly increased There is.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 and FIG. 2 show an example of a continuous chevron foam for constituting a purification zone in the present invention. This continuous chevron foam 1 has a plurality of trapezoidal shapes extending in parallel. An uneven surface connecting the protrusions 2 with the thin-walled parts 3 is formed on one side, and a flat surface 4 is formed on the other side. The required length (number of parallel protrusions 2) and width (protrusions) 2) and a rectangular planar shape. The continuous chevron foam 1 is formed of an open-cell sponge such as polyurethane, polypropylene, or polyethylene.

  The continuous chevron foam 1 shown in FIG. 2 shows a case where the width L1 of the top portion of the trapezoidal protrusion 2 and the width L2 of the thin portion 3 are formed with a wide width having substantially the same dimensions. 3 shows a case where the width L3 of the top portion of the trapezoidal protruding portion 2 and the width L4 of the thin portion 3 are formed with a narrow width having substantially the same dimensions. The shape of the part 2 is a trapezoid close to a triangle. The height of the protruding portion 2 and the width of the top portion of the protruding portion 2 and the width of the thin portion 3 can be arbitrarily set, but the thickness S of the thin portion 3 connecting the protruding portions 2 to each other is about 2 mm or less as an example. It is set to.

  As shown in FIG. 4, the continuous chevron foam 1 constitutes a purification band 7 by adhering and fixing the flat surface 4 to a holding sheet 6 with an adhesive 5. In FIG. 4, the continuous chevron foam 1 is fixed to only one side surface of the holding sheet 6, but the continuous chevron foam 1 can also be fixed to both surfaces of the holding sheet 6.

  Various known adhesives are used as the adhesive 5, but the adhesive 5 does not dissolve the sponge continuous chevron foam 1, has water resistance or water resistance when solidified, and is resistant to organisms. It is preferable to use a harmless one.

  The holding sheet 6 can be a synthetic resin plate such as vinyl chloride. The holding sheet 6 is designed to have a required strength so as to hold the weight when water is contained in the continuous chevron foam 1.

  The continuous chevron foam 1 made of a porous (open cell) sponge generally has innumerable pores having a maximum diameter of about 2 mm, and therefore the flat surface 4 of the continuous chevron foam 1 is bonded to the adhesive 5. The thickness of the thin-walled portion 3 is such that the adhesive 5 soaks into the flat surface 4 and the pores of the thin-walled portion 3 are filled with the adhesive 5 when the fixing sheet 6 is fixed. S is set. The thickness S of the thin portion 3 is preferably about 2 mm or less, which is the same as or smaller than the maximum diameter of the pores as described above. As described above, when the adhesive 5 soaks into the thin wall portion 3 and solidifies, the pore structure of the thin wall portion 3 is broken to form a fracture portion 3a having a pore structure in which water penetration is prevented. Water is allowed to flow along the surface of the thin portion 3 without penetrating into the thin portion 3 by the destruction portion 3a of the pore structure.

  7 to 10 show another method for breaking the pore structure of the thin wall portion 3 of the continuous chevron foam 1 to form the fracture portion 3a of the pore structure.

  In FIG. 7, by filling the thin portion 3 of the continuous chevron foam 1 fixed to the holding sheet 6 with the adhesive 5 from the uneven surface side with a filler 16 (filler) such as an adhesive, a solidifying material, and a sealer, The pore structure of the thin portion 3 is broken to form a fracture portion 3a of the pore structure.

  In FIG. 8, the low-viscosity adhesive 5a is applied in a concentrated state between the continuous chevron foam 1 and the holding sheet 6 so as to correspond to the back surface of the thin portion 3 on the flat surface of the continuous chevron foam 1. By attaching, the low-viscosity adhesive 5a is spread evenly between the continuous chevron foam 1 and the holding sheet 6, and a large amount of the low-viscosity adhesive 5a is impregnated in the thin-walled portion 3 to break the pore structure. The destruction part 3a is formed.

  In FIG. 9, the thin member 3 of the continuous chevron foam 1 fixed to the holding sheet 6 with the adhesive 5 is heated by applying a heating member 17 from the uneven surface side to melt and break the pore structure of the thin member 3. Thus, the fracture portion 3a having the pore structure is formed.

  FIG. 10 shows another method for fixing the continuous chevron foam 1 to the holding sheet 6, and heat is applied to the thin portion 3 of the continuous chevron foam 1 by applying a heating member 17 from the uneven surface side. As a result, the thin portion 3 is melted and fixed integrally to the holding sheet 6. At this time, by destroying the pore structure of the thin-walled portion 3 of the continuous chevron foam 1 by the heat of the heating member 17, the fracture portion 3a of the pore structure can be formed at the same time.

  As described above, the fracture portion 3a of the pore structure formed in the thin portion 3 of the continuous chevron foam 1 is continuous in the longitudinal direction of the thin portion 3 (the direction perpendicular to the paper surface of FIGS. 7 to 9). Alternatively, it may be formed at a plurality of locations with a predetermined interval.

  The continuous chevron foam 1 can be manufactured as follows.

  The continuous chevron foam 1 shown in FIG. 1 and FIG. 2 is preferably manufactured by using a profile processing that is usually used to form an uneven pattern on a flexible urethane foam. In order to perform the profile processing, first, in the continuous chevron foam 1 whose dimensions are planned in advance as shown in FIGS. 1 and 2, the thin-walled portion has a height T from the flat surface 4 to the top of the protruding portion 2. A plate-like foam material 8 shown in FIG. 5 having a thickness obtained by adding a thickness S of 3 is prepared.

  On the other hand, as shown in FIG. 6 (A), the convex portion 9 and the concave portion 10 corresponding to the concave and convex shape composed of the protruding portion 2 and the thin portion 3 of the continuous chevron foam 1 are arranged so as to mesh with each other vertically. A pair of pressing rollers 11a and 11b rotating in opposite directions is prepared, and the plate-like foam material 8 is supplied between the pressure rollers 11a and 11b to compress and deform the plate-like foam material 8 as shown in FIG. The plate-like foam material 8 is divided at the intermediate position between the pressure rollers 11a and 11b by the split blade 12 arranged immediately downstream of the pressure rollers 11a and 11b under compression and deformation. At this time, the dividing position is adjusted so that the thickness S of the thin portion 3 formed between the protrusions 2 is formed to be approximately 2 mm or less. That is, since the plate-like foam material 8 is deformed by the compression of the pressure rollers 11a and 11b and the thickness is restored after cutting, it is split in advance so that the thickness S of the restored thin portion 3 is approximately 2 mm or less. The cutting position by the blade 12 is adjusted in advance.

  The continuous chevron foam 1 obtained in this way is manufactured in such a manner that the top and bottom two sheets are simultaneously fitted to each other as shown in FIG. 6C, and when this is peeled off, as shown in FIG. The width L1 of the top part of the trapezoidal protrusion 2 and the width L2 of the thin part 3 coincide with each other, and the thin part 3 having a thickness S of approximately 2 mm or less is formed between the protrusions 2.

  FIGS. 11 and 12 show one purification band 7A formed using the continuous chevron foam 1. The purification band 7A attaches the flat surface 4 of the continuous chevron foam 1 to the adhesive 5 (FIG. 4). ), The protrusions 2 of the continuous chevron foam 1 disposed on both surfaces of the holding sheet 6 are fixed so as to be symmetrical and parallel with respect to the holding sheet 6. .

  On the other hand, FIG. 13 shows another purification band 7B formed by using the continuous chevron foam 1, and the purification band 7B attaches the flat surface 4 of the continuous chevron foam 1 to the adhesive 5 (see FIG. 4). ) So that the protrusions 2 of one continuous chevron foam 1 disposed on both surfaces of the support sheet 6 correspond to the thin-walled part 3 of the other continuous chevron foam 1. These continuous chevron foams 1 are shifted in parallel up and down by a half pitch of the pitch of the protrusions 2 and fixed in parallel.

  The continuous chevron foam 1 may have a long length (the length in the left-right direction in FIG. 1) that allows the purification zones 7A and 7B to be formed only by being fixed once to the holding sheet 6. The purification bands 7A and 7B may be formed in a short length by continuously arranging a plurality of continuous chevron foams 1 on the holding sheet 6.

  As shown in FIGS. 11, 12 and 13, when the flat surface 4 of the continuous chevron foam 1 is fixed to the holding sheet 6 with the adhesive 5, the adhesive 5 is about 2 mm or less as shown in FIG. 4. By soaking into the thin-walled portion 3 having the thickness S and solidifying, the fracture portion 3a having the pore structure is formed between the protrusions 2 at the same time.

  Further, as shown in FIG. 7, a filler 16 (filler) such as an adhesive, a solidifying material, and a sealer is provided from the uneven surface side to the thin portion 3 of the continuous chevron foam 1 fixed to the holding sheet 6 with the adhesive 5. By filling, the pore structure of the thin portion 3 may be broken to form the fracture portion 3a of the pore structure.

  Further, as shown in FIG. 8, the low-viscosity adhesive 5a is concentrated between the continuous chevron foam 1 and the holding sheet 6 so as to correspond to the back surface of the thin portion 3 on the flat surface of the continuous chevron foam 1. By sticking in the supplied state, the low-viscosity adhesive 5a is spread evenly between the continuous chevron foam 1 and the holding sheet 6, and a large amount of the low-viscosity adhesive 5a is impregnated in the thin-walled portion 3 to form a pore structure. The fracture portion 3a having a pore structure may be formed by breaking.

  Further, as shown in FIG. 9, the heating member 17 is applied to the thin wall portion 3 of the continuous chevron foam 1 from the uneven surface side to apply heat, thereby breaking the pore structure of the thin wall portion 3, thereby destroying the pore structure destruction portion 3 a. May be formed.

  According to the method shown in FIGS. 7 to 9, there is no need to limit the thickness S of the thin portion 3 to about 2 mm or less as shown in FIG. 4, and the thickness of the thin portion 3 is arbitrarily changed. Even so, it is possible to form the fracture portion 3a having the pore structure.

  In the above description, the case where the flat surface 4 of the continuous chevron foam 1 is fixed to the holding sheet 6 using the adhesive 5 has been described. However, as shown in FIG. Alternatively, the continuous member-shaped foam 1 may be fixed to the holding sheet 6 by applying heat to the uneven surface to melt the thin portion 3 by applying heat. Further, at this time, by destroying the pore structure of the thin portion 3 of the continuous chevron foam 1 by the heat of the heating member 17, the fracture portion 3a of the pore structure can be formed simultaneously.

  As shown in FIGS. 11, 12, and 13, the continuous chevron foam 1 is disposed symmetrically with respect to both surfaces of the holding sheet 6 or is shifted by 1/2 pitch up and down later. This is because the mountability at the time of assembling is taken into consideration, and therefore, when the mountability is not considered, the height position of the continuous chevron foam 1 fixed to both surfaces of the holding sheet 6 can be arbitrarily changed.

  FIG. 14 shows an example of the purification band assembly, and the purification band assembly 13 is formed by projecting portions of the continuous chevron foam 1 on both sides of the holding sheet 6 as shown in FIGS. The case where it comprises using the purification zone | band 7A arrange | positioned so that 2 may become symmetrical is shown. That is, the upper and lower height positions of the adjacent purification zones 7A are set to 1 / so that the protrusions 2 of one purification zone 7A correspond to the thin-walled portion 3 of the other purification zone 7A adjacent (the destruction portion 3a of the pore structure). The upper end of the holding sheet 6 is suspended and supported by the support portion 14 so as to be shifted by 2 pitches and so that the protruding portions 2 are horizontal. At this time, it is preferable that the lower end of the holding sheet 6 is fixed to the lower part so that the respective purification zones 7A are vertical, and the mutual interval between the adjacent purification zones 7A is accurately maintained. As shown in FIG. 14, in the purification band 7A in which the protrusions 2 are symmetrically arranged on both surfaces of the holding sheet 6, the support parts are arranged so that the adjacent purification bands 7A are shifted from each other by 1/2 pitch. By supporting with 14, the protruding portion 2 and the thin portion 3 of the adjacent purification zone 7 </ b> A come to correspond.

  FIG. 15 shows another example of the purification band assembly. As shown in FIG. 13, this purification band assembly 15 has one protruding portion 2 on both sides of the holding sheet 6 and the other thin wall portion. 3, a case where the continuous chevron foam 1 is configured using a purification band 7 </ b> B in which the continuous chevron foam 1 is arranged with a 1/2 pitch shift is shown. Therefore, in this case, the holding sheet 6 is suspended and supported by the support portion 14 at the same height position, so that the protruding portion 2 and the thin portion 3 of the adjacent purification band 7B correspond to each other.

  Next, the operation of the above embodiment will be described.

  As shown in the above embodiment, prior to the production of the purification zone, the continuous chevron foam 1 shown in FIG. 1 is first produced.

  In order to manufacture the continuous chevron foam 1, the thickness S (approximately 2 mm) of the thin part 3 is set to the height T from the flat surface 4 of the continuous chevron foam 1 shown in FIGS. 1 and 2 to the top of the protrusion 2. 5 is prepared, and the pressure roller 11a, 11b having the convex portion 9 and the concave portion 10 shown in FIGS. 6 (A) and 6 (B) and the pressure is provided. A split blade 12 is prepared to be arranged downstream of the rollers 11a and 11b.

  The plate foam material 8 is supplied between the pressure rollers 11a and 11b arranged opposite to each other as shown in FIG. 6 (A) to compress and deform the plate foam material 8, and the pressure rollers 11a and 11b as shown in FIG. 6 (B). The plate-like foam material 8 is divided at the intermediate position between the pressing rollers 11a and 11b under the compression / deformation condition by the split blade 12 arranged immediately downstream of the sheet. At this time, the dividing position is adjusted so that the thickness S of the thin portion 3 formed between the protruding portions 2 of the continuous chevron foam 1 to be manufactured is approximately 2 mm or less. That is, since the plate-like foam material 8 is deformed by the compression of the pressure rollers 11a and 11b and the thickness is restored after cutting, it is split in advance so that the thickness S of the restored thin portion 3 is about 2 mm or less. The cutting position by the blade 12 is adjusted.

  Since the continuous chevron foam 1 manufactured in this way is manufactured in a state in which the top and bottom two are simultaneously fitted to each other as shown in FIG. 6 (C), when peeled off, each of them is manufactured. As shown in FIG. 2, the width L1 of the top part of the protrusion part 2 and the width L2 of the thin part 3 coincide, and two continuous sheets having the thin part 3 having a thickness S of approximately 2 mm or less between the protrusion parts 2. The chevron foam 1 is molded at the same time.

  As described above, since the two continuous chevron foams 1 are formed simultaneously by profile processing using the plate-like foam material 8, the required size of the shape in which the plurality of protruding portions 2 are connected by the thin-walled portions 3. The continuous chevron foam 1 having the thickness can be easily manufactured with high accuracy and with high efficiency.

  Next, a method for producing a purification zone using the continuous chevron foam 1 will be described.

  As shown in FIGS. 11 and 12, the flat surface 4 of the continuous chevron foam 1 is attached to the holding sheet 6 with an adhesive 5, and at this time, the continuous chevron foam 1 disposed on both surfaces of the holding sheet 6 is symmetrical. And fix to be parallel. As a result, a purification band 7 </ b> A is formed in which the protruding portions 2 are arranged symmetrically around the holding sheet 6.

  Further, as shown in FIG. 13, the flat surface 4 of the continuous chevron foam 1 is attached to the holding sheet 6 with an adhesive 5, and at this time, the continuous chevron foam 1 disposed on both surfaces of the holding sheet 6 is projected. It is fixed so that it is shifted vertically by a half pitch of 2 and parallel. As a result, a purification band 7 </ b> B is formed in which the protruding portion 2 of one continuous chevron foam 1 corresponds to the thin portion 3 of the other continuous chevron foam 1.

  As shown in FIG. 11, FIG. 12, and FIG. 13, the flat surface 4 of the continuous chevron foam 1 is simply adhered and fixed to the holding sheet 6 with the adhesive 5, and the interval between the protruding portion 2 and the thin portion 3 is increased. The purification zones 7A and 7B held with high accuracy can be manufactured with high efficiency.

  As shown in FIGS. 11, 12, and 13, when the flat surface 4 of the continuous chevron foam 1 is fixed to the holding sheet 6 with the adhesive 5, the adhesive 5 is an abbreviation of the continuous chevron foam 1. The thin-walled portion 3 having a thickness S of 2 mm or less is soaked and solidified, whereby the pore structure of the thin-walled portion 3 is broken, and the fracture portion 3a of the pore structure is formed between the protrusions 2 at the same time.

  Further, as shown in FIG. 7, the thin portion 3 of the continuous chevron foam 1 fixed to the holding sheet 6 with the adhesive 5 is filled with a filler 16 (filler) such as an adhesive, a solidifying material, and a sealer from the uneven surface side. By doing so, it is possible to form the fracture portion 3a having the pore structure in the thin portion 3.

  Further, as shown in FIG. 8, the low-viscosity adhesive 5a is concentrated between the continuous chevron foam 1 and the holding sheet 6 so as to correspond to the back surface of the thin portion 3 on the flat surface of the continuous chevron foam 1. By spreading the low-viscosity adhesive 5a evenly between the chevron foam 1 and the holding sheet 6 and also impregnating the thin-walled portion 3 with more low-viscosity adhesive 5a, the thin-walled portion 3 is provided with the fractured portion 3a of the pore structure. Can be formed.

  Further, as shown in FIG. 9, by applying heat to the thin wall portion 3 of the continuous chevron foam 1 by applying a heating member 17 from the uneven surface side, the pore structure of the thin wall portion 3 is melted to break the pore structure destruction portion 3a. Can be formed.

  Moreover, as shown in FIG. 10, instead of fixing with the adhesives 5 and 5a, the thin wall portion 3 of the continuous chevron foam 1 is heated by applying a heating member 17 from the uneven surface side to apply heat. 3 can be melted to fix the continuous chevron foam 1 integrally to the holding sheet 6, and at this time, the pores of the thin-walled portion 3 can be melted to simultaneously form the fracture portion 3a of the pore structure. .

  As described above, since the pore structure of the thin wall portion 3 of the continuous chevron foam 1 is broken to form the fracture portion 3a of the pore structure, the water retention of the protrusion 2 by the continuous chevron foam 1 is ensured. Will come to be.

  That is, since the continuous chevron foam 1 generally formed of a sponge body as shown in FIG. 1 has the same pore density in both the protruding portion 2 and the thin wall portion 3, the continuous chevron foam as shown in FIGS. In the configuration in which 1 is arranged vertically, particularly in the initial stage of installation of the apparatus, water descends through the thin-walled portion 3 at a high speed, so that decomposition and purification of sewage by microorganisms is not performed well. There was a problem. Normally, when used for a long period of time, colonies are formed in the thin-walled portion 3, and therefore, the degradation and purification of sewage can be performed satisfactorily only after the falling speed of the water is reduced.

  In this regard, as shown in FIGS. 4 and 7 to 10, since the thin-walled portion 3 of the continuous chevron foam 1 is provided with the pore-structure destruction portion 3 a, the falling water is the pore-structure destruction portion. By temporarily stopping at 3a and flowing so as to spread laterally or on the outer surface of the breaking portion 3a, the falling speed of the sewage is kept slow from the initial stage of use of the apparatus.

  As described above, by forming the pore-structured destruction portion 3a in the thin-walled portion 3, oxygen is introduced by the sewage flowing down the surface of the pore-structure destruction portion 3a, thereby promoting the oxidation. The sewage treatment capacity by 7A and 7B is increased.

  Next, a method for manufacturing a purification band assembly using the purification bands 7A and 7B will be described.

  In FIG. 14, as shown in FIGS. 11 and 12, the purification band assembly 13 constituted by using the purification band 7A in which the protrusions 2 of the continuous chevron foam 1 are symmetrically arranged on both surfaces of the holding sheet 6 is shown. Shows the case. That is, the upper and lower height positions of the adjacent purification zones 7A are set to 1 / so that the protrusions 2 of one purification zone 7A correspond to the thin-walled portion 3 of the other purification zone 7A adjacent (the destruction portion 3a of the pore structure). The upper end of the holding sheet 6 is suspended and supported by the support portion 14 so as to be shifted by 2 pitches and so that the protruding portions 2 are horizontal. As described above, in the purification band 7A in which the protrusions 2 are symmetrically arranged on both surfaces of the holding sheet 6, the adjacent purification bands 7A are supported by the support unit 14 so that they are shifted by 1/2 pitch. As a result, the protruding portion 2 of the adjacent purification zone 7A corresponds to the thin portion 3 (the destruction portion 3a of the pore structure).

  FIG. 15 shows another example of the purification band assembly. As shown in FIG. 13, this purification band assembly 15 has one protruding portion 2 on both sides of the holding sheet 6 and the other thin wall portion. 3, a case where the continuous chevron foam 1 is configured using a purification band 7 </ b> B in which the continuous chevron foam 1 is arranged with a 1/2 pitch shift is shown. Therefore, in this case, the holding sheet 6 is suspended and supported by the support portion 14 at the same height position, so that the protruding portion 2 and the thin portion 3 of the adjacent purification band 7B correspond to each other.

  As shown in FIGS. 14 and 15, the protrusions 2 of the purification zones 7A and 7B can be accurately supported by the support portion 14 so as to correspond to the thin portions 3 of the adjacent purification zones 7A and 7B. It is possible to arrange the purification bands 7A and 7B close to each other so that 2 fits into the groove-shaped part by the thin-walled part 3, so that the installation density of the continuous chevron foam 1 is increased and the purification band assembly 13 is increased. , 15 can significantly increase the sewage treatment capacity.

  Further, when the purification zones 7A and 7B shown in FIGS. 11, 12 and 13 are transported to the site where wastewater treatment is performed, and the purification zones assemblies 13 and 15 as shown in FIGS. 14 and 15 are assembled. Since the protrusions 2 and the thin portions 3 of the purification bands 7A and 7B are fitted and fitted with no gap, the purification bands 7A and 7B are fitted so that the protrusions 2 and the thin portions 3 are fitted. By laminating, the purification zones 7A and 7B can be transported as a minimum volume.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

It is a perspective view which shows an example of the continuous chevron foam for comprising the purification zone in this invention. It is a side view of the continuous chevron foam of FIG. It is a side view of the continuous chevron foam which has a shape different from FIG. It is a side view which shows the example which comprises a purification zone using the continuous chevron foam of FIG. It is a perspective view of the plate-shaped foam material used for manufacture of a continuous chevron foam. An example of profile processing is shown, (A) is a front view of a pair of pressing rollers, (B) is a side view showing a state where a plate-like foam compressed by the pressing rollers is divided into two by a split blade. (C) is a front view of the divided continuous chevron foam. It is a side view which shows the other example which forms the destruction part of a pore structure in the thin part of a continuous chevron foam. It is a side view which shows the further another example which forms the fracture | rupture part of a pore structure in the thin part of a continuous chevron foam. It is a side view which shows the further another example which forms the fracture | rupture part of a pore structure in the thin part of a continuous chevron foam. It is a side view which shows the example which fixes a continuous mountain-shaped foam to a holding sheet simultaneously with forming the fracture | rupture part of a pore structure in the thin part of a continuous mountain-shaped foam. It is a perspective view which shows an example of the purification zone in this invention. It is a side view of FIG. It is a side view which shows the other example of the purification zone in this invention. It is a side view which shows an example of the purification band assembly in this invention. It is a side view which shows the other example of the purification band assembly in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Continuous chevron foam 2 Protrusion part 3 Thin part 3a Destruction part of a pore structure 4 Flat surface 5 Adhesive 5a Low-viscosity adhesive 6 Holding sheet 7 Purification zone 7A, 7B Purification zone 8 Plate-shaped foam 13 Purification zone assembly 15 Purification zone assembly 16 Filler 17 Heating member S Thin part thickness

Claims (15)

  A continuous chevron foam having a concavo-convex surface in which a plurality of projecting portions extending in parallel are connected by a thin portion on one side and a flat surface on the other side is formed from a plate-like foam material by profile processing, and the continuous A method for producing a purification zone, comprising fixing a flat surface of a chevron foam to a holding sheet.   The method for producing a purification band according to claim 1, wherein the flat surface of the continuous chevron foam is fixed to a holding sheet with an adhesive.   The method for producing a purification zone according to claim 2, wherein the thin-walled portion of the continuous chevron foam fixed to the holding sheet is filled with a sealer from the uneven surface side to break the pore structure of the thin-walled portion.   When the flat surface of the continuous chevron foam is fixed to the holding sheet with an adhesive, the thickness of the thin part of the continuous chevron foam is the thickness at which the pores of the thin part are filled with the adhesive and the pore structure is destroyed. The method for producing a purification zone according to claim 2, wherein:   The low-viscosity adhesive is concentrated between the continuous chevron foam and the holding sheet so as to correspond to the back surface of the thin portion on the flat surface of the continuous chevron foam, and the adhesive is evenly distributed between the continuous chevron foam and the holding sheet. The method for producing a purification zone according to claim 2, wherein the pore structure is broken by impregnating the thin-walled portion with an adhesive.   2. The method for producing a purification band according to claim 1, wherein a heating member is applied to the thin wall portion of the continuous chevron foam from the uneven surface side to apply heat to melt the thin wall portion and fix it to the holding sheet. .   The purification band according to claim 6, wherein when the thin wall portion of the continuous chevron foam is melted by the heating member and fixed to the holding sheet, the pore structure of the thin wall portion is melted and broken by the heat of the heating member. Production method.   A continuous chevron foam having a concavo-convex surface on one side and a flat surface on the other side, in which a plurality of projecting portions extending in parallel are connected by a thin-walled part, and fixing the flat surface of the continuous chevron foam A purification zone, characterized by comprising a holding sheet.   The purification zone according to claim 8, wherein the protrusion has a substantially trapezoidal shape.   The purification zone according to claim 8 or 9, wherein the thin portion of the continuous chevron foam 1 is provided with a fracture portion of a pore structure.   The purification band according to any one of claims 8 to 10, wherein the continuous chevron foam is a polyurethane-based, polypropylene-based, or polyethylene-based open-cell sponge.   The purification band according to any one of claims 8 to 11, wherein a continuous chevron foam is fixed to both surfaces of the holding sheet so that one and the other protrusions are symmetrical to each other.   The purification band according to any one of claims 8 to 11, wherein a continuous chevron foam is fixed to both surfaces of the holding sheet so that one protrusion corresponds to the other thin part.   The purification belt according to any one of claims 8 to 13, wherein the holding sheet is a synthetic resin plate.   A continuous chevron foam having an uneven surface on one side and a flat surface on the other side, in which a plurality of projecting portions extending in parallel are connected by a thin-walled portion, and an adhesive on both sides of the holding sheet via the flat surface The purification zone is configured by fixing with one, the protrusion of one purification zone corresponds to the thin portion of the other purification zone, and the projection of the other purification zone to which the thin portion of the one purification zone is adjacent A purification zone assembly in which a plurality of purification zones are arranged close to each other to correspond to the above.

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