JP2009274043A - Hanging structure of purification belt for sewage purifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive hanging structure which is easy in hanging work and exchanging work. <P>SOLUTION: In a sewage purifier where a purification belt made by arranging columnar bodies made of a porous material on both surfaces of a support so that their longitudinal direction is made horizontal, and arranging a plurality of the columnar bodies in parallel in the vertical direction is locked to a hanging member to be vertically hung, and sewage is supplied from above the purification belt to be purified, the support is made of a net member, a locking part locked to the hanging member is formed using the upper edge part of the net member, the hanging member is made of a hanging bar material, and the locking part hangs one purification belt to one hanging bar material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a purification device using a purification zone for purifying sewage such as industrial wastewater, vertical drainage, and river water, and particularly belongs to the technical field of a purification zone suspension structure in a purification unit.

Conventionally, many methods and devices have been proposed for purification methods and purification devices using microorganisms. In recent years, a porous columnar body having voids to which microorganisms adhere is adhered to both surfaces of a holding body (or also called a support) to form a purification zone, and a large number of purification zones are suspended in a curtain shape. A purification method and a purification device for purifying the sewage by flowing down the sewage have been developed. This is because aerobic microorganisms can easily come into contact with air and can expect a vigorous reaction, and because a blower for supplying air is not used, energy consumption is low.

As a conventional apparatus using a purification zone, for example, there is a purification apparatus described in Patent Document 1. The purification zone in this apparatus is, for example, arranged in a vertical direction (longitudinal direction) by arranging triangular columnar bodies made of polyurethane sponge in the horizontal direction (lateral direction) so as to face both surfaces of the holding body. It has a configuration in which a plurality are arranged in parallel. Since the columnar body of the sponge becomes heavier including sewage, the weight of the purification zone also increases. Since the purification device suspends a large number of purification zones, the overall weight also increases, and it is also important to devise a suspension method and a suspension structure that take into account the replacement work of the degraded purification zone. Become one.
Patent Gazette, Japanese Patent No. 3443725 (Purification zone, purification device, etc.)

A purification zone fixing structure (hereinafter referred to as a conventional device 1) shown in Patent Document 1 (see FIG. 14) is provided with slits 52 for spraying sewage on both side edges of a container (sewage spraying means) 51, and the slits. A configuration in which the purification band is fixed to the back side of the container 51 so as to arrange the purification band 53 below 52 is shown. However, when the purification band 53 is fixed to the back surface of the container 51, there is a problem that the replacement work of the purification band 53 becomes complicated, and the fixing structure for suspending the heavy purification band 53 becomes complicated.

Further, in the conventional method shown in FIG. 15 (hereinafter referred to as the conventional apparatus 2), the purification band 65 is configured by disposing triangular sponge carriers on both surfaces of the sheet-like holding body. Then, as shown in the enlarged view, a metal fitting (ring-shaped metal fitting) 61 having a hook attachment hole is attached to the upper side of the sheet-like holding body 60, and one end of the S-shaped hook 62 is inserted into the metal fitting hole. The hanging structure is employed in which the other end of the hook 62 is hung on and fixed to the hanging rod-shaped member 63. In this method, when the number of purification zones is large, not only the mounting work of the metal fitting 61 is complicated, but also the overall cost is increased, resulting in a problem of high cost.

The purification zones of the conventional apparatus 1 and the conventional apparatus 2 both use a sheet as a holding body, and as described above, there are various problems such as complicated installation work and high costs. This invention makes it the subject to provide the suspension structure of the purification zone which the above-mentioned problem does not arise.

In order to solve the above problems, the present invention employs the following means. That is,
According to the first aspect of the present invention, the longitudinal direction of the columnar body made of a porous material is disposed in the horizontal direction on both surfaces of the holding body, and a plurality of the columnar bodies are disposed in parallel in the vertical direction. In the purification apparatus for purifying the sewage by supplying the sewage from above the sewage band by hanging the sewage purification band on the suspension member and suspending it vertically, A locking portion for locking to the suspension member is formed using the upper edge of the member.

According to a second aspect of the present invention, in the first aspect of the present invention, the suspension member is constituted by a hook-shaped member made of a circular pipe or a round bar, and the locking portion is one for one suspension member. It is characterized by being configured to suspend individual purification zones.

According to a third aspect of the present invention, in the invention of the second aspect, the suspension member is configured by the hook-shaped member, and the warp-like thread is formed by alternately moving back and forth warps of the mesh at the upper edge of the mesh member. A member is passed through the mesh part where the warp yarns are moved back and forth, the purification band is locked to the hook-like member, and stoppers are provided at both ends of the hook-like member so that the warp yarns at the upper edge of the mesh member are And the mesh member itself is prevented from approaching the center side of the bowl-shaped member.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the stopper is provided with a notch slit at both ends of the hook-shaped member, or a protrusion on the center side of both ends of the hook-shaped member. It is characterized by that.

The invention according to claim 5 is the invention according to claim 1 or 2, wherein the weft of the mesh at the upper edge of the mesh member is cut and removed, and the warp and the mesh of the warp are obtained by cutting the weft. A ring is formed by joining the remaining lower part, and the suspension member is passed through the ring, and the purification band is suspended by the suspension member.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the ring is formed by bending the warp to form a ring portion, and the end of the warp is a lower portion where the mesh of the warp remains. It is characterized in that it is fixed to the central part by welding, binding or using a crimping member.

According to a seventh aspect of the present invention, in the first or second aspect of the invention, the upper edge of the mesh member is folded and placed on the suspension member, and an arc-shaped elasticity is formed from above the folded mesh member. It is characterized by being covered and fixed.

The invention according to claim 8 is the invention according to claim 7, wherein the elastic cylinder is formed of a resin cylinder having an arc-shaped cross section, or an arc shape on the resin cylinder. It is characterized by being reinforced with a metal elastic body having a cross section.

The present invention uses a mesh member as a holding body and uses the upper edge of the mesh member to configure the suspended portion (locking portion). The effect is simple and inexpensive.

<Embodiment 1>
FIG. 1 is a perspective view of a purification unit 9 of the purification device according to the first embodiment of the present invention. FIG. 2 is an explanatory view of a part of FIG. 1 (hanging member and purification zone). FIG. 3 shows an exploded view of FIG. FIG. 5 shows an example in which a part of the first embodiment is changed.

As shown in FIG. 1, the purification section 9 of the sewage purification apparatus (not shown) has each of the plurality of purification zones 10 suspended vertically by the suspension members 20. Each suspension member 20 is formed of a bowl-shaped member made of a circular pipe or a round bar, and is disposed horizontally and a plurality thereof are disposed in the front-rear direction. The distances between the front and rear of the individual suspension members 20 are such that the individual purification zones do not contact each other, are densely arranged so that they can be arranged as much as possible, and are fixed by a frame or a fixing member (not shown).

FIG. 2 is a view showing a suspension structure in which the purification zone 10 is suspended from one suspension member 20. As shown in FIGS. 2 and 3, the suspension member 20 includes a circular pipe 22 having slits 21 at both ends. The slits 21 are provided at two locations in the diameter direction of the circular pipe 22, and the slit width is such that the mesh thread 11 a of the purification band 10 can be inserted. Furthermore, as shown in the lower side of the wavy line in FIG. 3, the purification band 10 in Embodiment 1 of the present application uses a net member 11 having a rectangular mesh pattern as a holding body 11 that supports the sponge triangular prism body 12. In the first embodiment, in order to fix the purification band 10 to the suspension member 20, the mesh corresponding to the first mesh from the top of the mesh member 11 is directed from the back to the front as shown by the chain line in the figure. With the direction as the front, the warp yarns 11a are alternately moved back and forth, and the suspension member 20 is penetrated and fixed. That is, the portion where the chain line is above is the mesh thread forward, and the portion where the chain line is below the mesh thread is behind the hanging member 20. Note that the net member 11 is not limited to the rectangular net pattern shown in the figure, and may be a net having a net thread obliquely or a net member having a turtle-like net pattern. For example, in the case where there are diagonal meshes, as shown in FIG. 4 (A), the mesh member is cut along line XX, the top warp of the uppermost mesh is cut and removed, and two of the triangles are The suspending members 20 are alternately passed back and forth through the rhombus meshes combined in (1). Assuming that the direction facing the front from the back of the drawing is the front, the suspending member 20 is the front in the solid line portion, and the suspending member 20 is the rear in the dotted line portion. FIG. 4B shows the case of a mesh member having a mesh pattern like a turtle. In this case, the mesh member is cut by XX line, and the warp yarns of the mesh are alternately moved back and forth so that the suspension member 20 is penetrated.

A state in which the purification band 10 is fixed to the suspension member 20 is shown in FIG. As is clear from the above description, the distance Lb between the left end slit 21 and the right end slit 21 must be smaller than the lateral width La of the mesh member. The distance Lb also varies depending on the outer diameter of the circular pipe 22. In addition, when the purification band 10 contains a large amount of sewage and overlaps, the warp yarn 11a is pulled downward, so that both ends of the weft yarn 11b connecting the warp yarn 11a are also pulled downward, so that the distance Lb tends to be further reduced. . Considering the above, an appropriate distance Lb is determined.

FIG. 5 shows an example in which a part of the first embodiment is changed. That is, in the warp yarn 11a of FIGS. 2 and 3, the warp yarn provided with the ring 13 is used instead of the mesh yarns 11a, 11a at both ends, and the protruding stopper 23 is provided instead of the slit 21. It is. In this case as well, the warp yarn provided with the ring 13 is connected to the warp yarn 11a by the weft yarn 11b, so the distance Lc between the stoppers 23 and 23 is substantially the same as Lb in FIG.

<Embodiment 2>
FIG. 6 shows a configuration of a suspended portion (locking portion) for the hanging member 20 according to the second embodiment. 7 and 8 show a method of forming an annular portion using a net member. Also in the second embodiment, a net member is used as the holder 11 of the purification zone 10. In the second embodiment, the suspension thread (warp thread) 15 for locking to the suspension member 20 has an annular portion 15a, and each annular portion 15a is not connected in the lateral direction (horizontal direction), so the suspension thread 15 is No approaching force is applied. Therefore, unlike the first embodiment, there is no need to provide a stopper such as a slit. Moreover, the method of suspending is very simple because only the suspending member 20 is passed through each annular portion 15a.

FIG. 7 shows an example of the processing of the net member 11 for forming the annular portion 15a. As shown in FIG. 7A, first, the uppermost side portion 16 of the net member 11 is cut off. Next, the weft thread 17 (17a, 17b, 17c) on the upper side is cut and removed. That is, the “X” portion shown in FIG. 7A is cut to remove the weft. Next, as shown in FIG. 7B, the tip portion of the cut warp yarn 18 is bent and joined to the lower root portion where the mesh of the warp yarn 18 exists to form the annular portion 15a. As a method for joining the warp yarns 18, for example, as shown in FIG. The crimping member 19 may be an aluminum pipe having a circular cross section, but if a member having a gap in part such as a C-shaped or U-shaped cross section is used, the joining operation is facilitated. The joining method may be welding or bundling instead of crimping. It is not always necessary to cut and remove the X-shaped portion. For example, the wefts 17b and 17c may be left.

8A shows a perspective view when a circular pipe is used as the suspending member 20, and FIG. 8B shows an arrow view seen from X. FIG. The outer diameter D of the circular pipe 20 is preferably about 2 cm (for example, 1.5 cm to 2.5 cm). This is because if the outer diameter D is too small, the curvature of the mesh yarn of the annular portion 15a becomes large and is easily cut. In this case, the hanging angle θ formed by the annular portion 15a is preferably 60 degrees or less. Note that the above numerical examples show suitable relationships, and the present invention is not limited thereby.

<Embodiment 3>
The third embodiment is a preferred embodiment when the mesh size of the mesh member used as the holder 11 of the purification zone 10 is small. FIG. 9 shows an assembly drawing of the third embodiment, and FIG. 10 shows an exploded view. FIG. 11 is an explanatory diagram of the assembly procedure. In FIG. 9, the fixing (locking) method of the third embodiment is different from the above-described first and second embodiments, and the upper edge portion 11 p of the net member 11 of the purification band 10 is in close contact with the upper surface of the suspension member 20. Further, the arc-shaped cylinder 25 made of an elastic material made of resin is covered from above the upper edge portion 11p so that the upper edge portion 11p and thus the purification band 10 do not fall off. Further, since the resin material loses its elastic force in a relatively short period of time due to aging, the arc-shaped spring body 26 made of a steel spring material is put on the resin arc-shaped cylindrical body 25 at an appropriate position. May be used. The resin arcuate cylinder 25 receives a bending moment to open the resin arcuate cylinder 25 from the inside as a reaction force in order to hold down the upper edge portion 11p. On the other hand, the resin arcuate cylinder 25 is made of resin from a steel spring material. In order to receive the bending moment for closing the arcuate cylinder 25, the bending moment acting on the resin arcuate cylinder 25 to be opened is canceled and reduced, and the internal stress is also reduced. As a result, the elastic force is also attenuated slowly. Furthermore, since the spring body 26 made of steel maintains the spring force for a longer period, it can withstand long-term use.

FIG. 10 shows an exploded view. An upper edge portion 11p made of a net member of the holding body 11 is exposed at the upper portion of the purification band 10, and a sponge columnar body 12 is bonded to the center portion and the lower portion. . The suspension member 20 is preferably a circular pipe having a certain large outer diameter, for example, about 1.7 cm. The resin arcuate cylinder 25 is provided with a slit 25a over the entire length of the bottom, and the slit 25a is used to fit the circular pipe 20 from above the upper edge portion 11p. Furthermore, when using for a long period of time, the arcuate spring body 26 for assisting the spring force of the resin arcuate cylinder 25 is prepared as necessary. The inner diameter of the arcuate spring body 26 is set to an appropriate diameter in accordance with the outer diameter of the resin arcuate cylinder 25, and the lateral width of the arcuate spring body 26 is set to an appropriate length.

FIG. 11 is an explanatory view showing an assembly procedure. First, the upper edge portion 11 p of the net member 11 is first covered on the surface of the circular pipe 20. Next, the portion of the slit 25a of the resin arcuate cylindrical body 25 is pressed from above the circular pipe 20 in a state where the upper edge portion 11p of the net member 11 is fixed using a hand or a tool. The slit 25 a is opened by the pressed force and is fitted to the circular pipe 20. Finally, the cutout portion 26a of the arcuate spring body 26 is pressed and fitted from above the resin arcuate cylinder 25. When assembling and disassembling according to the above procedure, reverse the procedure.

<Other embodiments>
As another embodiment, when the mesh of the mesh member used for the holding body 11 of the purification zone 10 is small, the mesh member shown in FIGS. 12 and 13 may be used instead of the above-described third embodiment. FIG. 12 is substantially the same as the above-described first embodiment, and FIG. 13 is substantially the same as the second embodiment.
In FIG. 12, FIG. 12 (A) shows a large mesh opening 30 as shown in FIG. 12 (B) by cutting the mesh thread of the portion marked “X” on the upper edge 11p of the mesh member 11. Form. As described in the first embodiment, as shown by the chain line in the drawing, the suspending member 20 provided with the slit 21 is communicated in the front-rear direction to fix the purification band 10.
Further, in FIG. 13, as shown in FIG. 13 (A), the weft at the uppermost edge of the mesh member 11 is cut along the line AA, and further, the portion of the upper edge 11p marked with “X” is cut. Then, as shown in FIG. 13 (B), the cut end portion warp and the warp at the bottom portion where the mesh remains are joined by pressure bonding or the like to form a ring 32 of a plurality of mesh yarns. As shown by the chain line in the figure, the suspension member 20 is communicated with the ring 32 to suspend the purification zone 10.

  As described above, according to the present embodiment, since the suspended portion is configured using the upper edge portion 11p of the mesh member 11 used as the holding body in any case, the production work is simple. In addition, the production cost can be reduced. In addition, since the suspended portion can be configured regardless of the size of the mesh or the mesh pattern, there is an effect that it can be used for a wide range of purposes.

  The embodiments and examples of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the examples, and there are design changes and the like without departing from the gist of the present invention. Are also included in the present invention.

The perspective view of the purification | cleaning part of Embodiment 1 which implemented this invention is shown. The suspension method of the suspension structure of the purification zone of Embodiment 1 is shown. The exploded view of Embodiment 1 is shown. (A), (B) The example applied to the net member from which the net pattern of Embodiment 1 differs is shown. The modified example of Embodiment 1 is shown. (A), (B) The top plan view and perspective view of the suspension structure of Embodiment 2 are shown. (A), (B) The formation procedure of the ring of Embodiment 2 is shown. (A), (B) It is explanatory drawing of the suitable requirements of a ring. The suspension structure of Embodiment 3 is shown. The exploded view of Embodiment 3 is shown. The assembly procedure of Embodiment 3 is shown. (A), (B) The modification of Embodiment 1 is shown. (A), (B) The modification of Embodiment 2 is shown. An example of a suspended structure of a conventional apparatus is shown. The example of the hanging structure of another conventional apparatus is shown.

Explanation of symbols

9 Purification unit 10 Purification zone 11 Net member (holding body)
11a Upper edge part 12 Sponge columnar band 20 Suspension member 21 Slit (stopper)
23 Protrusion (stopper)
25 Resin Arc-Shaped Cylindrical Body 26 Arc-Shaped Spring Body

Claims (8)

A purification band in which the longitudinal direction of the columnar body made of a porous material is horizontally arranged on both surfaces of the holding body and a plurality of the columnar bodies are arranged in parallel in the vertical direction is fixed to the suspension member. In a purification device that stops and suspends vertically and supplies sewage from above the purification zone to purify the sewage, the holding body is constituted by a net member, and the upper edge of the net member is utilized. A suspending structure for a purification zone of a sewage purification apparatus, wherein a locking portion for locking to the suspending member is formed. The suspension member is formed of a hook-shaped member made of a circular pipe or a round bar, and the locking portion is configured to suspend one purification zone with respect to one suspension member. The suspension structure of the purification zone of the sewage purification apparatus according to claim 1. The suspension member is composed of the hook-like member, and the warp yarns of the upper edge portion of the mesh member are alternately moved back and forth so that the hook-like member penetrates the mesh portion where the warp yarns are moved back and forth, and the purification band is formed. The hook is locked to the hook-shaped member, and stoppers are provided at both ends of the hook-shaped member so that the warp yarns at the upper edge of the mesh member are close to each other, and the mesh member itself is at the center side of the hook-shaped member. The suspended structure of the purification zone of the sewage purification apparatus according to claim 2, which is prevented from approaching. The said stopper provided the notch slit in the both ends of the said bowl-shaped member, or the processus | protrusion was provided in the center side of the both ends of the said bowl-shaped member, The purification | cleaning of the sewage purification apparatus of Claim 3 characterized by the above-mentioned. A hanging structure of the belt. The weft of the mesh at the upper edge of the mesh member is cut and removed, the warp of the portion where the weft is cut is joined to the lower part where the mesh of the warp remains, and a ring is formed. The suspension structure of the purification band of the sewage purification apparatus according to any one of claims 1 or 2, wherein the purification band is suspended by being suspended by the suspension member through a member. The ring is formed by bending the warp yarn to form a ring portion, and fixing the end portion of the warp yarn to the center of the lower portion where the mesh of the warp yarn remains by using welding, binding, or a crimping member. The suspended structure of the purification zone of the sewage purification apparatus according to claim 5, The upper edge of the mesh member is folded and covered with the suspension member, and an elastic cylinder having an arc-shaped cross section is placed on the folded mesh member and fixed. The suspension structure of the purification zone of the sewage purification apparatus in any one of 2. 8. The sewage according to claim 7, wherein the elastic cylinder is formed of a resin cylinder or is reinforced by covering the resin cylinder with a metal elastic body having an arc-shaped cross section. Suspension structure of the purification zone of the purification device.

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