JPS582413Y2 - Purification device for fish farming - Google Patents

Description

[Detailed description of the invention] This invention relates to a purification device for fish farming used in fish farms such as aquariums, cages, and ponds.

In aquariums, cages, ponds, etc. where ornamental and edible fish are cultivated, it is necessary to filter out solid impurities and dissolved impurities because fish excrement, feed, etc. are a major cause of deterioration and putrefaction of the water.

Conventionally, it has been common practice to use artificial or natural sand-like granules as a filter medium, add purifying bacteria, and pass impurity-containing water through it. Since the filter is designed to extract purified water from the filter, thicker filter media tend to clog due to its own weight and water pressure, and thinner filter media require a larger space, which poses some practical problems.

In this case, multiple filter media layers are arranged vertically in parallel, water mixed with impurities is supplied from above through the coarse solids, and a flow is generated across the filter layers, thereby eliminating the risk of clogging and requiring a large space. It is designed so that it can be purified without having to clean it.

An embodiment of the present invention will be described below with reference to the drawings.A net 3 is superimposed on a perforated plate 2 in which a large number of small holes are bored close to the front and rear walls 1a, 1a of a flat box body 1 with an open upper surface. The perforated partition plates 4, 4 are arranged vertically, and the perforated partition plates 7, 7, which are also made by overlapping the perforated plates 5 and the mesh 6, are arranged parallel to each other with a narrow interval, and the top edge of the perforated partition plates 7, 7 are arranged in parallel, and the upper and lower sides are open at the upper edge. frame 8
A disperser 10 formed by providing a porous bottom plate 9 is fixed, and the disperser 10 is inserted inside the porous partition plates 4, 4 and along one side wall 1C of the box body 1 and stands upright.

Each porous partition plate 4, 4, 7, 7 is in contact with the bottom wall 1e of the box 1, and an outlet for purified water is provided in the front wall 1a between the other side wall 1d of the box 1 and the distributor 10. 11 is provided, and an introduction pipe 12 of water to be filtered containing impurities is passed through.

The introduction pipe 12 is supported through the frame 8 and opens at the upper center of the distributor 10, and an air introduction pipe 13 is attached to the tip thereof.

Between the porous partition plate 4 attached to the box body 1 and the porous partition plate 7 attached to the disperser 10, a filter medium made of artificial or natural sand-like particles mixed with aerobic purifying bacteria is filled. Two vertical parallel filter medium layers 14.14 are formed.

The mutual gaps 15 between these filter media layers 14.14 and the gaps 16.16 between the front and rear walls 1a, 1a of the box body 1 are partitioned from each other by the filter media layers 14.14 and function as water passages and storage spaces.

Furthermore, a filtration layer 17 made of a bulky fiber layer for filtering and removing coarse solids is placed on the porous bottom plate 9 of the disperser 10, and the box body 1 is provided with a lid 19 having appropriate ventilation holes 18. It is.

In this embodiment configured as described above, water from an aquarium, a fish tank, a pond, etc. is pumped up and discharged onto the filtration layer 17 through the introduction pipe 12, and the water spread inside the frame 8 is Coarse solids are removed by the filtration layer 17 and passed through the porous bottom plate 9 to the filter medium layer 14 14 and the gap 15 therebetween.
It falls like a shower, flows downward inside the filter medium layer 14.14, crosses it, and flows into the gap 16.16 between the front and rear walls 1a, la.

That is, all of the water that has passed through the disperser 10 flows into the filter layer 1 below it.
4.14 and enters the front and rear gaps 16°16, where fine solids and dissolved impurities are removed by the filter media layer 14.14.

The water that has entered the gap 16.16 overflows from the outlet 11 above the upper edge of the filter layer 14.14 and is taken out and returned to the aquarium, fish tank, pond, etc.

The water discharged from the introduction pipe 12 to the filter separation layer 17 sucks air from the air introduction pipe 13 and contains the water dispersed in the form of bubbles, so that oxygen is given to the purifying bacteria.

Incidentally, it goes without saying that the filter medium layer 14 arranged vertically below the disperser 10 may have three or more layers, and those porous partition plates 4 and 7 support the filter medium and allow only water to pass through. If so, the structure doesn't matter.

In addition, the left and right sides of the distributor 10 may be separated from the side walls IC and ld of the box body 1, or may be fixed on top of these.
The outlet 11 may be provided on both the front and rear walls 1a.

As described above, the present invention vertically arranges multiple layers of filter media filled with filter media made of artificial or natural granules containing purifying bacteria between the porous partition plates to provide gaps between each other and with the front and rear walls of the box. Since a disperser for water containing impurities is placed on top of these filter media layers, coarse solids can be removed by supplying water from an aquarium, fish tank, pond, etc. to the filtration layer on the porous bottom plate of the disperser. is removed by filtration, and then the porous bottom plate causes water to fall like a shower over the filter media layer and into the gaps between them, as gaps are formed in front and behind the filter media layers arranged vertically with an appropriate thickness. The water flows appropriately across the filter media layer and is purified.

Therefore, by enlarging the opening at the tip of the introduction pipe 12 or increasing the amount of introduced water to immerse the filter layer in water, it is possible to uniformly flow water from the entire disperser 10 to the filter layer. Since water flows across the filter media layer, it can be used without worrying about clogging due to its own weight and water pressure.

In addition, since multiple filter media layers of appropriate thickness are arranged vertically in parallel, it can be installed without requiring a large space and can purify a large amount of water.Furthermore, since coarse solids are filtered out, the filtration layer can be easily filtered to avoid clogging. Since the layer is provided at the top, it has excellent effects such as being easily replaceable.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention, and FIGS. 2, 3, and 4 are lines AA, BB, and C-C in FIG. 1.
It is a sectional view along a line. 1...Box body, 1a...Front and rear walls, 8...
... Frame body, 9 ... Porous bottom plate, 10 ...
... Distributor, 11... Outlet, 12...
・Introduction pipe, 14...Filtering medium layer, 15.16...
...Gap, 17...Filtering layer.

Claims (1)

[Scope of utility model registration request] A plurality of filter media layers 14 having an appropriate thickness are formed by filling filter media made of granular material containing purifying bacteria between the porous partition plates 4 and 7, and are arranged vertically in the box body 1 so that they are mutually connected to the box body 1. front and rear walls 1
a, 1a and gaps 15, 16, 16 are provided, and a disperser 10 consisting of a frame 8 and a porous bottom plate 9 is arranged on these filter media layers 14, and a coarse solid material is placed on the porous bottom plate 9. A filtration layer 17 is installed, an inlet pipe 12 for impurity-containing water opens above the disperser 10, and an outlet 11 for purified water is provided in at least one of the front and rear walls 1a, la of the box body 1. Fish farming purification equipment installed.