JPH0135276Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] A contact material for aerobic or anaerobic biological treatment does not take up much space for transportation, and when used, the binding member can be cut or removed, or water can be removed. This invention relates to a contact material for biological (wastewater) treatment that can be easily restored to the shape of a radial member by dissolving it in water and can be used by simply throwing it into a sewage treatment device.

[Conventional technology]

Conventional contact material for biological (wastewater) treatment has a diameter of 110φ.
mm or 150φmm means that parts shaped like a ball with lots of spaces already formed to a certain size or parts shaped like a square box were transported, and although they were not heavy, It was like transporting air, and had the disadvantage of being expensive to transport.

[Problem that the invention attempts to solve]

This idea was designed to solve the problem of transporting parts that have a certain size and are filled with spaces, so it is like transporting air, and the transport costs are not high.

[Means for solving problems]

A radial member is formed by arranging a number of thin plates made of synthetic resin that can be restored or not, and connected together at the center, and the central connecting shaft of the radial member. The two thin plates are cut open in the longitudinal direction almost to the center line, and during transportation, the two thin plates are rotated so that the other thin plate is sandwiched between the two thin plates closest to the cut open part. The outer end (opposite the central connecting shaft) folded in this way is fastened with a binding member (such as a string, clip, adhesive or water-soluble tape) to make the whole thinner and look like cardboard. It is transported in large quantities in a suitable box, and when used, the binding member is removed and the tape is easily restored to the shape of the radial member, or in the case of water-soluble tape, it is placed in a sewage treatment equipment and immersed in water. The problem was solved by restoring it by melting it down.

[Effect]

Transport costs can be reduced by transporting a large number of thinly folded and fastened sheets in a box, and by arranging a number of thin sheets of synthetic resin that have the ability to restore their shape in a radial pattern and connecting them together at the center. When a radial member is formed, the binding member can be removed as appropriate at the site, or if it is a water-soluble binding member, it can be simply put into the sewage treatment equipment, and the binding member can be removed or dissolved in water. This allows it to return to its original three-dimensional radial shape naturally (automatically) and be used without any effort, or you can hold the outermost thin plate on the front and back sides and flip it over to spread out the whole three-dimensionally. The two outermost thin plates can be stacked and fixed appropriately to form a three-dimensional radial member, and when it is put into the sewage treatment equipment, it can be made of synthetic resin that does not have the ability to restore its shape.In either case, it can be folded during transportation. It can be made compact and transported in large quantities.

〔Example〕

A radial member 2 is formed by arranging a number of thin plates 1 made of synthetic resin that have a restorable shape and connecting them together at the center, and extending the central connecting shaft 3 of the radial member 2 almost to the center line. The entire structure is formed by cutting openings 4 in the vertical direction.

The overall shape of the radial member 2 may be spherical, square, or oval, and ideally it has a wide surface area and a large amount of space. Further, as shown in Fig. 1, the contact time of the treated water can be extended by connecting the thin plates 1 to the top and bottom and then to the center 5 of adjacent thin plates 1 to form a shape that does not allow the treated water to easily pass through. It is something that can be done.

The central connecting shaft portion 3 may be in the shape of a solid rod, but when connected in the shape of a pipe to form the cutting opening 4, it is more likely to be reversed. Furthermore, when holes 6 are appropriately bored in the thin plate 1, the sludge retention rate is improved and degassing is improved. During transportation, the two thin plates 1a closest to the cutting opening 4 are held and turned over, and the other thin plate 1 is sandwiched between the two thin plates 1a and fastened with a fastening member 7.

The above example uses a synthetic resin that has a restorable shape, but to explain the case where a synthetic resin that does not have a restorable shape is used, a large number of synthetic resin thin plates 10 formed into almost the same shape are stacked together. Either one of the pieces 11 is connected and male and female attachment members 12, 13 are provided on the outermost thin plate 10a on the front and back to form the whole.

In use, hold the outermost thin plates 10a on the front and back sides, turn the whole thing over, overlap the front and back thin plates 10a, and engage the male and female attachment members 12 and 13 to spread the thin plates 10 radially into a three-dimensional shape. This forms the radial member 2. Mounting member 12,1
3 may be something like a split pin with a hole on one side and a large head on the other.

That is, it is sufficient to form a structure that does not easily come off once engaged.

〔effect〕

Since it can be transported in a folded and compact state, it does not take up much volume and can be transported in large quantities at once, reducing transportation costs.In addition, when using the product, the binding member can be removed and easily restored to its original shape, or the binding member is water-soluble. In this case, the fastening member can be put in as it is, and the binding member can be dissolved in water and restored to its original shape, so the putting in work is simple.

[Brief explanation of the drawing]

Fig. 1 is a front view of the first embodiment in a radially expanded state, Fig. 2 is a perspective view of the folded state, Fig. 3 is a plan view of the central connecting shaft, and Fig. 4 is the second embodiment. It is an explanatory front view of.

Claims (1)

[Scope of utility model registration request] A radial member is formed by arranging a large number of thin plates made of synthetic resin in a radial manner and connecting them together at the center, and one location of the central connecting portion of the radial member is opened in the vertical direction. Contact material for biological treatment.