KR910003086B1 - Packing for watre clarification - Google Patents

Abstract

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Description

Square fillings for water treatment and manufacturing apparatus thereof

1 is a perspective view showing a first example of a rectangular filler according to the present invention.

2 is a longitudinal cross-sectional view of FIG.

3 is a perspective view showing the second example.

4 is a longitudinal sectional view showing the third example.

Fig. 5 is a longitudinal sectional view showing the fourth example.

6 is a longitudinal sectional view showing the fifth example.

7 is a sectional view of an apparatus for manufacturing the rectangular filling of the first to fourth examples.

8 is a plan view of FIG.

9 is a front view of the apparatus for manufacturing the rectangular filling of the fifth example.

10 is a plan view of FIG.

* Explanation of symbols for main parts of the drawings

12: mesh pipe 14

21: winding frame 23: heating mechanism

24: intermittent supply mechanism 25: cutter

30: welding projection

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a water treatment square filler mainly used as a contact medium for contact treatment by aerobic or anaerobic sewage, and an apparatus for automatically and efficiently producing the filler.

In a sewage treatment tank in which sewage is subjected to contact treatment by aerobic or anaerobic conditions, a filler is indispensable as a contact medium as follows.

(I) Biologically, it is preferable that the maximum food chain progresses in a limited body of water, and coexistence of protozoa, multicellular small animal, arthropod, mollusk and vertebrates such as small fish in bacteria type In addition to phytoplankton, high-level purification (nitrogen removal, phosphate removal) of treated water by hydroponic cultivation such as floating grass, various land weeds, and useful vegetables can be expected at the same time.

(II) As a condition required from the user's side, the water treatment performance is excellent and stable at all times, so that the apparatus can be made small in size.

(III) Copper fillings are light and easy to handle, and can be used in any shape and deep or shallow tanks without the need for construction work by simply putting them in the tank.

(Ⅳ) Copper fillings are chemically stable materials, and their use in water should be permanent.

(Ⅴ) To preserve the suspended state by having an apparent specific gravity that is physically and geometrically indistinguishable from water, not sinking or excessively floating, not entangled with one another, and dispersing them separately in water.

(Ⅵ) It does not cause water disturbance (obstruction) in the packing due to the death of living organisms and the accumulation of debris, and it does not become void and rises on the water surface without placing bubbles in it.

Easily recoverable even if this condition occurs due to overloading, for example.

The present inventors have already proposed a filler having a structure in which a plurality of combinations thereof are formed based on a continuous extruded wooden tube of a hard polyethylene resin as a filler satisfying all the above conditions.

Such a filling is most suitable in that it can satisfy each of the above conditions. There is a big difference in unit volume price, material cost, and productivity depending on the coupling structure of the mesh pipe, which is a big task to determine the practical use as a filler.

Accordingly, it is an object of the present invention to provide a square filler in which the unit volume price is inexpensive and can satisfy the conditions required for sewage treatment. It is also an object of the present invention to provide a rectangular filling which is excellent in strength and is an excellent habitat for various small organisms, and also has a relatively increased filling capacity in the water zone, so that sewage treatment in limited waters can be effectively performed. Is in.

It is another object of the present invention to provide a square filling which, in use, does not reduce the habitat of a small organism even when subjected to compression or close contact.

It is another object of the present invention to provide a manufacturing apparatus capable of automatically mass production of square fillings.

The foregoing and other objects and features of the present invention will be understood in detail by considering the following description with reference to the accompanying drawings, which are illustrated in the drawings as an example.

The square fillings shown in Figs. 1 to 5 have the basic structure folded or rolled into a mesh or mesh pipe, reducing the width to one-tenth, overlapping each other in a flat state, and partially overlapping at least one of the overlapped portions. It is constructed by welding.

In the first example of the square filler 11 shown in FIG. 1 and FIG. 2, a thin polyethylene mesh tube 12 formed of thin wires is cut into a length of about 50 mm and flattened. After applying a pressure to fold in two, overlap to reduce the width to half, and the heat-welding portion 13 is carried out in the center position of the overlapped portion to preserve the form.

In the second example shown in FIG. 3, the same mesh pipe 12 as described above is flattened, and both sides thereof are folded to one side to face the side edges, thereby reducing the width to 1/2. The heating welding part 13 was given to the side edge part which was crushed and abutted.

In the third example shown in FIG. 4, the mesh pipe 12 is in a flat state, and both sides thereof are folded in opposite directions to overlap each other in three layers to reduce the width to one third. It is to be done. In addition, the number of overlapping mesh pipes is not limited to the example of the drawing. For example, the mesh pipes are flattened and then rolled inward so that they can be folded in four layers and heated and welded to the entire overlapped portion. You may also do it.

In addition, as the mesh pipe 12 described above, a rigid polyethylene resin (specific gravity 0.95-0.97) is continuously pushed out using a manufacturing method such as that shown in JP-A-414185, 20-200 mm in diameter, It is preferable to use those formed with a mesh gap of 2-8 mm and a wire diameter of 0.1-0.8 mm.

In the fourth example shown in FIG. 5, a relatively wide net 14 is rolled up so as to perform the required number of heat welds on the overlapped portions in a flat state.

The mesh 14 used in the fourth example uses the same mesh spacing and wire diameter as the mesh tube 12 described above, and the number of overlaps can be freely selected by pushing.

Next, FIG. 7 and FIG. 8 show the manufacturing apparatus of the square filler 11, The winding frame 21 which rolls up the long mesh 14 or the long mesh pipe 12, and the winding frame ( 21) guides the mesh 14 or mesh tube 12 drawn out in the longitudinal direction to move the length of the mesh 14 or the mesh tube 12 through and folds or rolls the width of the mesh 14 or mesh tube 12 through The guide member 22 to be reduced, the heating mechanism 23 arranged in front of the moving direction of the mesh 14 or the mesh pipe 12 of the guide member 22, and the front of the heating mechanism 23 It is comprised as the intermittent supply mechanism 24 and the cutter 25 arrange | positioned further ahead than the said supply mechanism 24 mentioned above.

The guide member 22 described above is provided with a guided or rolled-in guide portion for allowing the net body or mesh pipe 12 to be passed into the cross-sectional shape of the various fillers 11 illustrated in FIGS. 1 to 5.

The heating mechanism 23 arranges the nozzles 26 and 26 up and down with the mesh 14 or the mesh pipe 12 in a state of being folded or rolled out from the guide member 22, Hot wires blown out by the nozzles 26 and 26 are used to heat the wires of the mesh 14 or the mesh pipe 12 to a temperature at which they can be welded.

The intermittent feeding mechanism 24 is formed as a pair of feeding rollers 27 and 27 arranged up and down with a long mesh 14 or a mesh pipe 12 interposed therebetween in a folded or rolled state. And pressurizes the mesh 14 or the mesh tube 12 flatly, and intermittently rotates by driving by the intermittent drive mechanism 29 equipped with the motor 28, so that the long mesh or mesh tube 12 is long. Intermittent supply of a certain length to the front.

Although the feed rollers 27 and 27 are not shown in detail in the drawings, elasticity is provided by gravity or a spring approaching each other, and the width thereof is equal to the flat width of the mesh 14 or the mesh pipe 12. About the same, in order to increase the pulling force of the mesh 14 or the mesh pipe 12, the entire outer circumferential surface is formed as a tooth-shaped uneven surface.

Further, on the outer circumferences of the rollers 27 and 27, the weld projections 30 for pressing and heating the wires of the heated meshes 14 and the mesh pipe 12 are welded at regular intervals in the circumferential direction. It is.

In the drawings, the welding projections 30 of the feeding rollers 27 and 27 are installed at six equal positions in the circumferential direction, and the intermittent rotation angle is equal to the interval of the welding projections 30, and The stop position is driven by the intermittent drive mechanism 29 so that the welding projection 30 corresponds up and down.

The cutter 25 described above is a fixed cutting blade 31, a shear cutting blade 32, and a connecting portion 33, each of which has a long length of the net body 14 or the mesh pipe 12 in a flat state. It is configured as a crank 34 for imparting up and down movement to the shear cutting blade 32 through the crank 34, the crank 34 is driven by the rotary shaft 35 of the intermittent drive mechanism 29 to the mesh or mesh pipe ( When the movement of 12) is stopped, the shear cutting blade 32 is moved up and down to cut the long mesh 14 or the mesh pipe 12 as a fixed blade 31 into a short square.

In addition, the arrangement interval of the heating mechanism 23 and the intermittent supply mechanism 24 is set to an integer multiple of the circumferential distance of the welding projection 30 provided in the feed rollers 27 and 27, and intermittent feeding The position of the cutter 25 relative to the mechanism 24 is determined by the shear cutting blade 32 and the fixed cutting blade (32) between the welded portion 13 formed of the long mesh 14 or the mesh pipe 12. 31) to be cut off.

Next, a method for producing a rectangular filling by using the above manufacturing apparatus will be described.

The upper and lower feeding rollers 27, (in the state in which the length of the long mesh 14 or the mesh pipe 12 drawn out from the winding frame 21 are inserted or squeezed into the guide member or reduced in width by a few minutes. 27) to activate the motor 29.

The upper and lower feed rollers 27 and 27 are intermittently rotated by the same distance to the pitch of the welding projection 30 by an intermittent drive mechanism 29 formed by inserting a cam or a Geneva device, etc. Intermittent the circumferential distance by rotating the mesh 14 or the mesh pipe 12 is intermittently.

The heating mechanism 23 heats the element wire by blowing hot air into the mesh body 14 or the mesh pipe 12 moving toward the feeding rollers 27 and 27.

When the long mesh 14 or the mesh pipe 12 passes through the guide member 22, the long cross section 14 or the mesh pipe 12 is shaped to be folded or rolled up to move the heating mechanism 23 and intermittent movement. At the time of stopping, the position facing the nozzles 26 and 26 is heated to a particularly high temperature, and this high temperature heating portion is pressurized by the welding projections 30 of the intermittent transfer feed rollers 27 and 27 several times. Since the feed rollers 27 and 27 stop, the high temperature heating part of the mesh 14 or the mesh pipe 12 is sandwiched between the welding projections 30 as a welding projection 30, and the welding portion 13 is welded. ), The temperature is taken away from the projections 30 so that the cooling is quickly fixed to integrate the mesh 14 or the mesh pipe 12 overlapping each other.

In this way, the long mesh 14 or the mesh pipe 12 integrated in the welded portion 13 is sent out to the cutter 25 and is a shear cutting blade 32 and a fixed cutting blade 31 which move up and down. The elongated mesh 14 or the mesh pipe 12 is cut in sequence to form a square filler 11 as shown in FIGS. 1 to 5.

In addition, by selecting the position of the cutter 25, it is possible to position the welded portion 13 of the filling 11 in half not only at one point in the center but at both of the cut ends.

Next, the fifth example of the square filler shown in FIG. 6 overlaps the three mesh pipes 12 flatly so that their axes are in the same direction, and the overlapped portions of the mesh pipes 12 are heated and pressurized by welding. In addition to joining by the part 13, it is formed by cut | disconnecting square shape so that this welding part 13 may be located in the center.

The overlapping number of the mesh pipe 12 described above is not limited to the drawing and may be freely increased or decreased if there are two or more.

The manufacturing apparatus for manufacturing the rectangular filling 11 of the fifth example is shown in FIGS. 9 and 10, and is substantially the same as the manufacturing apparatus described with reference to FIGS. The same parts are omitted by the same reference numerals.

As shown in FIG. 9 and FIG. 10, the mesh pipe 12 drawn out from each winding frame 21 is arranged by arranging a plurality of winding frames 21 which roll up the long mesh pipe 12 which is long in length. Through the guide member 22, the length of the long mesh pipe 12 is superimposed up and down to guide the length to move in the longitudinal direction.

The front end of the long mesh pipe 12 drawn out from each winding frame 21 is trimmed and inserted into the guide member 22 in a state of overlapping up and down, and inserted into the upper and lower feeding rollers 27 and 27. When the motor 28 is started in the closed state, the upper and lower feed rollers 27 and 27 are interposed with the pitch of the welding projection 30 via the intermittent drive mechanism 29 formed by inserting a cam or a Geneva device. By intermittently rotating the same distance, the long mesh pipe 12 having a long length is intermittently sent out as much as the circumferential distance caused by the rotation.

The heating mechanism 26 heats the element wire by blowing high-temperature air into the long mesh pipe 12 moving toward the feed rollers 27 and 27.

Since the long mesh pipe 12 moves intermittently, the position facing the nozzles 26 and 26 is heated to a particularly high temperature at the time of stopping, and this high temperature heating portion is fed with a feeding roller after several intermittent feedings. As the welding projections 30 of 27 and 27 are pressurized, the hot-heating portion of the long mesh pipe 12 having a long length every time the feed rollers 27 and 27 stops is a welding projection ( 30 is welded in between, this welding portion 13 takes the temperature from the projections 30 and quickly cools and stabilizes to integrate the long mesh pipe 12 with a long overlap. In this way, the long mesh pipe 12, which is integrated in the welded portion 13, is a sheared cutting blade 32 and a fixed blade 31 which are sent out to the cutter 25 and move up and down, and have a long mesh pipe. (12) is cut in turn to form a square filler 11 as shown in FIG.

Claims (6)

A square filler for water treatment, in which at least one or more places are welded on overlapping portions of a network layer made of synthetic resin with multiple layers. 2. The netting layer according to claim 1, wherein the netting layer 14 or netting tube 12 is used to be folded or rolled so that its width is reduced to a fewths and overlapped with each other in a flat state, and at least one or more of the overlapped portions Square filling for water treatment, characterized in that the welded. The square for water treatment according to claim 1, wherein at least one or more portions of the overlapped portions are welded in a flat state by aligning a plurality of mesh pipes side by side in the axial direction using the mesh pipe 12 in the mesh layer. Filling. The intermittent feeding mechanism 24 which presses flatly the mesh 14 or the mesh pipe 12 of the synthetic resin drawn out from the winding frame 21 so that the mesh layer may overlap, and feeds intermittently in the longitudinal direction, The heating mechanism 23 for heating the wire of the mesh or net pipe passing through the feeding direction of the intermittent feeding mechanism, and the mesh or mesh pipe overlapping each other and positioned in front of the feeding direction of the intermittent feeding mechanism described above, have a predetermined length. And a projection 30 for pressurizing and welding the heating portions of the mesh or mesh pipe superimposed on each other in the intermittent supply mechanism described above, wherein the projections 30 for cutting water are manufactured. Device. 5. The apparatus for producing a rectangular filler for water treatment according to claim 4, wherein the lamination of the mesh layer (14) or the mesh layer of the mesh tube (12) is performed by folding or rolling the mesh or mesh tube. 5. The apparatus for producing a rectangular filler for water treatment according to claim 4, wherein the dropping of the mesh layer of the mesh pipe (12) presses the plurality of mesh pipes in a state in which they overlap each other along the axial direction.

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