JPH10156924A - Production and regulation of spherical filament three-dimensional gap structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently utilize a contact oxidizing material by regulating a shape of a filament three-dimensional void structure to a spherical shape and charging a large quantity of moldings in water to lay them on the surface of the water or at an arbitrary place in water. SOLUTION: Two mutually opposed molds are processed into a similar semispheric shape by grinding to be heated to temp. higher than the melting temp. of a raw material of a molding 3, for example, by about +20-+40 deg.C and a cut cylindrical three-dimensional gap structure 3 is inserted into the semicircular part of one mold 5 and two mutually opposed molds 5 are compressed to melt and bend the cutting parts coming into contact with the semicircular parts of the molds 5 to regulate the structure 3 to a spherical shape. Or, the cut cylindrical three-dimensional void structure 3 is inserted into the semicircular part of one heated mold 5 and a heavy stone is charged in the circular hollow part 4 from the cutting part and two mutually opposed molds 5 are compressed while the heavy stone is left to melt and bend the cutting parts coming into contact with the mold semicircular parts to regulate the structure 3 to a spherical shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a spherical linear three-dimensional void structure 3 (hereinafter referred to as a molded product) to be molded, which has a large specific surface area, a high porosity, and a low specific gravity.
Used as a contact oxidizer for purifying water quality by throwing it into water. Since the specific gravity is light, it floats directly below the surface of the water, and the molded product placed in the structure of the heavy stone 6 can sink and fix to the bottom when poured into water, and float in the water by adjusting the weight of the heavy stone. You can also let it be done. As a result, the entire area of natural waters,
It can be used as a contact material for tertiary treatment of sewage treatment, in septic tanks, and in tanks for breeding aquatic organisms.

[0002]

[Prior Art] There are many contact materials for purifying water quality. For example, a combination of plate-shaped vinyl chloride in a honeycomb shape, a multi-sided elliptical shape, a thin fiber welded in a plate shape, a wire strip welded in a mesh shape, a plate-shaped product, a chemical These are made by twisting fibers, and all of them are mainly used for anaerobic tanks, contact oxidation tanks, and combined septic tanks in sewers. The method of manufacturing and utilizing the seablock, "Seablock," Heisei 4-79432, which was devised for the purpose of purifying the water quality of natural water systems irradiated by the sunshine and filed by the applicant, is disclosed. Invention of void structure, its manufacturing method and utilization method, Heisei 5-2520
There are manufacturing, shapes, and methods of using the three-dimensional void structure.

[0003]

When a raw material having a low specific gravity is used and laid at an arbitrary place on the surface of water and in water to be used as an efficient contact oxidizing material, the structure and performance of the molded product are limited to water. It must have a low resistance shape, a specific surface area to which microorganisms can easily adhere, and a structure that does not become clogged with a growing biofilm, and has a function to reliably purify water. The weight is left in the structure of the molded article, the weight of the weight 6 is adjusted, and the weight is settled on the water floor and floated at an arbitrary position in the water.

[0004] submerged on the bottom of a water tank or the like for breeding aquatic organisms,
When laminated and used as a contact material for oxidatively decomposing excrement of bred organisms, the molded product must be easily and easily laid on the bottom of the water, and water quality can be reliably purified.

[0005] When the molded product colored in various colors is filled in an ornamental water tank or the like, a color can be selected in consideration of the scenery, and the inside of the water tank can be arranged colorfully.

[0006]

Means for Solving the Problems When a large amount of the molded article 3 is put into water, the strength of the structure does not cause breakage, fraying, crushing, etc. due to contact of the structures due to the movement of the water, and water resistance due to the water flow. In consideration of the above, the shape of the linear three-dimensional void structure is defined as a sphere.

[0007] A method for regulating the molded article 3 into a spherical shape is as follows.
The linear three-dimensional void structure formed into a cylindrical shape is cut. (Example of FIG. 4) Grinding two opposing molds 5 into similar semicircular spheres,
The mold 5 is moved from the melting temperature of the raw material of the molded article 3 by + 20 ° or more.
After heating to about + 40 °, the cut cylindrical three-dimensional void structure 3 is inserted into the semicircular portion of one of the molds 5, and the opposing two molds 5 are compressed to make a cut portion that comes into contact with the semicircular portion. Melt and slide to normalize into a spherical shape. (Examples in FIGS. 5 to 8)

[0008] The method of placing the weight 6 in the molded product and setting it is as follows. The cut cylindrical three-dimensional void structure 3 is inserted into a semicircular portion of one of the heated molds 5, and the cut portion is inserted into the center hollow portion. Then, the two dies 5 are compressed while the weighing stones 6 are left, and the cut part that contacts the semicircular part of the dies is melted and folded to form a spherical shape. Regulate. (FIG. 9-
12 examples)

In the case where organic matter in water is oxidatively decomposed and adheres and multiplies as a biofilm on the surface of the striatum, the diameters of the main line 1 and the sub-line 2 of the striated lines constituting the structure are reduced, By increasing the number, the specific surface area of one sphere is further increased.

[0010] A hollow body 4 is provided at the center of the structure to define an irregular three-dimensional space in which the filaments are welded to each other. % Of the structure is formed to complement the water resistance and to provide a structure in which a biofilm that grows on the surface of the striatum grows and the voids are not closed and clogged.

The spherical material 3 is made of PE (polyethylene), PP (polypropylene), or the like, and has a specific gravity of 0.1.
The molded product 3 floats on the water surface at about 9 to 0.96.
A spherical or elliptical weight is inserted into the hollow portion 4 of the sphere, and the specific gravity of the molded product 3 is increased to 1.1 or more and put into water. 3 are laminated or fixed in parallel on the water bottom.

The uncolored new raw material is white and transparent, mixed with an arbitrary color pigment, extruded with a molten wire by an extruder, and molded into a spherical molded article 3 colored with an arbitrary pigment color. If you need to consider the surrounding colors such as an aquarium,
Fill the molded product 3 that has been selected and colored to make a contact oxidizing material.

[0013]

The molded article 3 has a specific surface area of 60 m ³ / m ^{3 to} 90.
It is a material having an extremely high water resistance, defined as a sphere, with m ² / m ³ and a porosity of about 93% to 96%. The molded article 3 having a large specific surface area, a high porosity due to the irregular space and the circular center portion 4, water resistance, and these contradictory structural conditions.
Can be simply put into water and used as a contact material for oxidatively decomposing organic substances. Aerobic bacteria adhere to the striated surface of the molded article 3 and are suitable for the growth of anaerobic bacteria at the welding contact point of the striated filaments. , It is possible to multiply.

The molded article 3 in which the filament is colored in an arbitrary color and the weight 4 is attached to the center 4 is settled as it is put into an ornamental water tank or the like and settles down at the bottom to excrete breeding organisms. By oxidizing and decomposing substances, stable water quality can be maintained for a long time.

When laying as a contact material for purifying water quality in a slowly flowing water area such as a pond, a reservoir, a factory pond, a lake, a closed beach or the like in a natural water area irradiated with sunlight, the organic matter in the water is deposited on the surface of the striatum. It attaches as a biofilm and oxidizes and decomposes other organic substances that come into contact with it, providing more housing to the food web at the bottom of the food chain, such as phytoplankton, bacteria, and protozoa, through photosynthesis of the sun's rays. It is possible to provide one means of activating the surrounding natural waters by transferring to various organisms and naturally generating various and diverse organisms.

The molded article 3 is a material developed for the purpose of laying in a natural water area irradiated with sunlight, and oxidative decomposition by photosynthesis transfers to the highest organism in the water area. In this case, the target water volume and the filling rate of the molded product are about 1% to 3% of the target water volume in the closed water area, and about 1% to 3% of the inflow per day in the transient water area. Lay 3 quantities.

[0017]

[Example] in Kita-ku, Tokyo maple park purification facilities in the park of natural waters (transient: the day the amount of 2,400m ³ inflow), Tsukuba, Japan Central Park (closed nature: water 6,000m ^3), Utsunomiya comprehensive park ( Aquatic Botanical Garden: 600m ³ ) In addition, about 20 projects have been implemented. In addition, we purify the cooling water for factories and fill the receiving tank of the cooling tower with the molded product 3 to stabilize the quality of circulating water.

[0018]

The results of a water purification test on the molded product in the Ueno Onshi Park boat pond, which is the most polluted in natural waters in the Tokyo metropolitan area, are as follows. This is the result of the water purification test at Ueno Onshi Park Boat Pond. 1. Example of water purification test results in low water temperature period: Example of Table 1 1. Volume of water partitioned into one area in pond: 100 m ³ 1, filling rate of the molded article = 3/100 of pond volume: 3 m ³ 1 The date when the molded product was filled in the temporary facility: 7.1.131, 1st test water collection date (after one month): 7.1.12.13 1, 2nd test water collection date ( After 2 months): 1996.16. Table 1, in which partition the part of Ueno Park boat pond water of 100 m ^3, and laying 3m ³ the molded article as a catalytic oxidation material, the lowest water temperature microbial activity is expected to lowest It indicates the change in water quality over time.

With respect to the amount of water in the Ueno Park boat pond where the low-load pollution of organic substances has continued for a long time,
%, The results shown in Table 1 were obtained after 2 months. As a result of the water quality test, the effectiveness of the purification ability can be confirmed on average for all the survey items as the purification ability after 2 months from the start of oxidative decomposition due to the biofilm adhered to the striatum.

The results of a survey of phytoplankton and a comparison of the numbers of cells in the treated water in the experimental area inside the facility and the raw water in the boat pond outside the facility are shown in Table-2. It can be seen from Table 2 that the number of phytoplankton cells surviving in the treated water of the experimental section in which the molded article was filled and the organic matter was oxidatively decomposed was 20,213, and the number of cells in the boat pond was 70,44.
2, the ratio is 28.57%, and the difference is 71.57%.
This means that the cell number has been reduced by 42%, which can prove that the water quality has been purified.

Inspection date; May 24, 1996 Ueno Onshi Park Boat 100
m ³ partition, as the molded product of the catalytic oxidation material to the location of the depth of 1 m, the upper surface in the upper portion (underwater 15.0 cm) middle portion (underwater 35.0Cm) lower portion (underwater 40.0Cm) is located Fixed in the same manner as above, and the molded product 5 outside the facility and in the experimental zone
The comparison of the test results of algae adhering to a cm x 5 cm square is as above. (Example of Table-3)

On the molded article 3 set in the boat pond,
There is no significant difference between the number of types of attached algae and the number of cells in the middle and lower sections, and the number of types and cells in each section of the experimental facility. The total number of cells in each stage in the boat pond is 262,912 / m
m ² , the total number of cells in each stage in the facility was 91,661 / mm ² ,
The difference is 0.349. In other words, the number of cells outside and inside the facility is reduced by about 65%, which indicates that the cell number of phytoplankton has biotransferred and the water quality has been purified.

By summarizing the changes in water quality over time in Table 1, the comparison of phytoplankton in Table 2, and the analysis results of the attached algae in Table 3, the effect can be definitely confirmed for all the test items. Both the raw water outside the facility and the phytoplankton floatability and adherence in the treated water inside the facility, the effectiveness of each stage becomes clear, and the water quality is improved by the biotransfer by the biofilm attached to the molded product. Can be purified. As a result, the present invention can exert its effect by laying it as a contact material in natural waters illuminated by sunlight and in places where tertiary treatment of upper and lower sewage treatments and other water treatments are required. You.

[Brief description of the drawings]

Fig. 1 Nozzle arrangement and correlation

Fig. 2 Array of circular nozzles

FIG. 3 is a sectional view of a cylindrical three-dimensional void structure.

FIG. 4 is a sectional view taken along line A-A ′ of FIG. 4;

FIG. 5 is a front view of compression, part 1

FIG. 6 is a front view of the compression, part 2

FIG. 7 is a front view of compression molding.

FIG. 8: A molded spherical three-dimensional void structure

FIG. 9 is a front view of compression when a weight is attached.

FIG. 10 is a front view of compression when attaching a weight, part 2

FIG. 11 is a front view of compression molding when attaching a weight.

FIG. 12: Spherical three-dimensional void structure with weight

[Explanation of symbols]

 1: Main line (thick wire diameter) of the nozzle opening in the mold 2: Subline (thin wire diameter) of the nozzle opening in the mold 3: Three-dimensional void structure of the wire 4: hollow center 5: Compressed semi-spherical opposing mold 6: Weight

Claims (3)

[Claims] 1. Method of manufacturing and regulating a spherical linear three-dimensional structure A nozzle having a different thickness is regularly arranged and opened in a tip die of an extruder. The molten thermoplastic raw material is extruded from the opened nozzle with a filament. Nozzle thermoplastic raw material PP or PE is extruded downward with a molten filament,
When the wire comes into contact with the cooling water surface, the wire with a lower specific gravity is in proportion to the diameter of the wire, and the larger wire diameter (hereinafter referred to as the main line) is larger,
A thin wire diameter (hereinafter referred to as a sub-line) draws a small arc, bends laterally, and tangles and welds to each other in contact with other adjacent filament surfaces. When the wire is pulled downward by the pulling device, the filament can form a structure having a complicated block structure and an irregular three-dimensional space. By changing the speed of the take-off device, the welding density, porosity, and weight between the filaments can be controlled to form the three-dimensional void structure of the filaments endlessly. The array of nozzles to be opened in the tip mold die is arranged in a block shape around a thick main line and sub-lines, and the overall shape can be any circle, square, rectangle, and any size. When a hole is opened, a three-dimensional void structure having a linear shape having a cylindrical, box-like, or plate-like cross section can be formed. The molten raw material is extruded from the nozzles arranged in a circular shape with a filament, and the peripheral surface is
By defining the center and the center of the circle, a cylindrical three-dimensional void structure having a hollow inside can be molded. Set the cut cylinder in the center of a compression-regulating mold heated to a temperature at which the thermoplastic raw material melts, cut the hollow hollow cylinder, compress the mold from both sides, and melt and slide the cut part After a certain period of time, the compression of the mold is released to set the spherical three-dimensional void structure. 2. A method of filling a weight into the center of a circle and regulating the sphere into a sphere.
(Approximately 0.96) is light, so it rises above the water surface. Set, compress from both sides with a compression mold that has been heated to a predetermined temperature, melt and fold the cut part, then release the compression of the mold and leave the weight at the center of the spherical line. A method of regulating a three-dimensional void structure. 3. The linear solid void structure to be molded is colored with an arbitrary color. A colorant of an arbitrary color is mixed with the thermoplastic raw material, and the linear three-dimensional void structure to be molded is colored to an arbitrary color.