JPH0335439Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (field of industrial application) This invention is designed to be installed in running water such as a dirty river.
This is a device that can be used to purify sewage.

(Conventional technology) To purify wastewater, wastewater is spread over a wide filtration layer with a gravel layer and sand layer, and organic matter in the wastewater is oxidized and decomposed by oxygen and bacteria, and filtered. Solids were removed and purified by passing through an overlayer.

(Problems that the invention is trying to solve) However, such treatment requires a large area of flat land and large-scale mechanical equipment such as pumps and sprayers. Furthermore, even if a purifying material such as activated carbon is sprayed directly into the water stream, it will not be effective because the purifying material will be washed away or it will be difficult to replace it when it deteriorates.

B. Structure of the invention (Means for solving problems) This invention has a receiving box at the top for letting the wastewater flow in, the bottom of this receiving box is bent into a wave shape, and a plurality of elongated holes are formed on the inclined surface of the receiving box. A filtration material box is formed with a perforated bottom plate, a first space is separated below the bottom plate, the bottom is formed with a wire mesh or a perforated plate, and is filled with a filtration material having a sewage purifying effect, and is pulled out from the main body of the purification device. At least one set of a filtration material box and a space communicating with the outside air is provided below the first space, and the bottom of the lowest filtration material box faces the downstream water surface across a space. The present invention provides a running water purification device that is characterized by the following characteristics and is capable of purifying river wastewater.

(Function) Because purification equipment is installed in rivers and sewage waterways,
Dirty running water always passes through this device, first flowing into the receiving box at the top of the main body, and forming thin plate-like water streams that collide facing each other through the long holes in the corrugated bottom plate and flowing into the first space. It flows out into the air, undergoes an oxidation effect when it comes into contact with air, and then flows down sequentially through a set of filter boxes stacked below and a space that communicates with the outside air, where it is purified by the filter material and air. Water purified through multiple stages of purification flows downstream.

When the filter material deteriorates, lift the main unit, pull out the filter box to the side, and replace the filter material.

If the device is installed in a river and the water flow increases due to rainfall, there is no need to worry about the river flooding as long as the device is suspended.

(Example) Figures 1 to 4 show the first embodiment of the present invention installed in a river. Figure 1 is a plan view, Figure 2 is a sectional view taken along line A-A in Figure 1, and The figure is a BB view of Figure 1,
FIG. 4 is a side view of the main body lifted as shown by the chain line in FIG.

In a river waterway 1, a U-shaped concrete base 2 that is open upward is constructed from both banks and the bottom, and a main body 3 is fitted into the inner surface of the base 2 with side and bottom surfaces provided inside.

Four pillars 4 are installed at the base and support a rotating shaft 5 from which the main body 3 is suspended.

A ridge 6 is formed on the front of the main body 3 and engages with a recess provided in the base to prevent the main body from being washed away by the water flow.

In front of the front wall 7 that closes the lower part of the waterway, a weir plate 8 whose central part projects in a V-shape and is remote from the riverbed is connected via support plates 9a and 9b.

A receiving box 10 is formed in the upper part of the main body 3.

The bottom of the receiving box 10 is covered with a corrugated bottom plate 11, and elongated holes 12 are bored in a plurality of inclined surfaces of the bottom plate 11. The front part of the side wall 13 of the receiving box is removed to allow the dirty water to freely flow into the receiving box.

A filter box 15 is provided below the receiving box 10 with a first space 14 in between. A rail material 16 having an L-shaped cross section is connected to the rear side wall 13 of the receiving box via the front wall 7 and the mounting plate 17.
is supported so as to be able to move laterally along this rail material 16. The bottom of the filter box 15 is made of wire mesh, and the box is filled with filter materials such as activated carbon and chemical treatment agents for purifying wastewater.

The lower surface of the filter box 15 faces the downstream water surface of the river across the second space 19. In this embodiment, the filter box 15 is divided into left and right parts separated by a vertical partition wall 20 at the center of the lower part, and when the main body 3 is lifted as will be described later, the filter box 15 can be pulled left and right from the main body. I'm getting ready to release it. When the main body is fitted to the base 2, the filter box 15 does not come out.

A lifting bracket 21 is attached to the weir plate 8 and the side wall 13, and by lifting a wire rope 22 connected to this with a chain 23, the main body 3 lifts the base 2 as shown by chain lines in FIGS. lifted apart. The chain 23 is wound around a chain foil 24 fixed to the rotating shaft 5, and the main body 3 can be raised and lowered by driving the chain foil 25 fixed to the end of the rotating shaft with a chain 26 to rotate the rotating shaft 5.

With this configuration, the wastewater flowing down the waterway 1 goes under the weir plate 8 and rises, and the wastewater flows up into the receiving box 10.
flows into.

Garbage floating in the river water is brought to the shore by the V-shaped weir plate 8, so it can be collected from the shore.

The water flowing into the receiving box 10 is refracted into a corrugated bottom plate 1.
1 flows out from the elongated holes 12 facing each other into the first space 14, collides and becomes turbulent, mixes with air, and undergoes a cleaning action by oxidation.

This water then falls onto the filter material box 15, and the filter material 18
The water flows through the bottom of the wire mesh and flows into the second space 19 in the form of a trickle, mixes with air again and is purified, falls to the surface of the river, and flows away.

When the filter material 18 deteriorates, the main body 3 is lifted up as shown by the chain line in FIGS. 3 and 4, the filter material box 15 is pulled out to the side of the main body, and the filter material is replaced. Even when the river water level increases due to heavy rain, if the main body is lifted in the same way, there is no danger of the river flooding.

In addition to the above-mentioned embodiment in which the river is installed so as to block the flow of the river, the following embodiments can be considered as embodiments of the first embodiment.

(1) If a sufficiently large head difference can be obtained between the upstream and downstream sides of the water purification system, a multi-stage water purification system can be constructed by appropriately combining receiving boxes, spaces, and filter boxes.

If the head is small, the second space 19 can be submerged and used.

(2) If the river is wide, install a lock 27 that can be opened and closed in a part of the river, as schematically shown in Figure 5.
By installing this water purification device on both sides or one side, the lock gate can be opened to allow boats to pass through.

Figures 6 and 7 show a second embodiment in which the present invention is installed at a sewage outlet. FIG. 6 is a plan view, and FIG. 7 is a sectional view taken along the line C--C in FIG. 6.

The attachment pipe 29 of the main body 42 of the water purifier is fitted onto the sewer pipe 28 at the part where the sewer pipe 28 opens to the riverbank. If the sewer pipe 28 does not protrude or the amount of protrusion is small, it is fitted inside. From the sewer pipe 28 to the attachment pipe 29
The wastewater that has flowed into the lower chamber 30 enters the lower chamber 30, rises along the partition wall 31, and flows into the receiving box 32.

The receiving box 32 has the same structure as the receiving box 10 of the first embodiment, and is formed of a bottom plate 33 with a corrugated bottom and a slotted hole. The sewage flowing out from the elongated holes in the bottom plate 33 collides with the air in the first space 34 under the bottom plate, mixes with air, enters the filter box 35 below, and passes through the porous bottom plate. 36, enters the lower second space 37, mixes with air, enters the lower filter box 38, is further purified in this way through the two lower filter boxes 39 and 40, and is discharged into the river. released into the Reference numeral 41 denotes a column connected to the main body 42 in order to support the weight of this purification device on the riverbed.

Each filter box is placed on the inner flange of the main body 42 of the purifier and is slidable laterally (up and down in FIG. 6) so that it can be removed from the main body 42 and replaced.

Air holes 43 are bored in the side surface of the main body 42 to allow air to enter each space. Main body 42
A hanger 44 is provided on the upper part of the purifier, on which a hook is hung when the purifier is removed.

Although this second embodiment shows that the main body 42 of the purifying device is made in one piece, it may be divided into several parts and combined at the time of use.

By attaching this purification device to the outlet of the sewage pipe 28, the sewage can be purified and discharged into the river.

C. Effects of the invention (1) Since it is installed in the water stream and the water contaminated by the head difference between upstream and downstream passes through this purification device, there is no need for large areas of land or large-scale mechanical equipment for purification treatment. be.

(2) The structure of the device is simple and can be manufactured at low cost.

(3) According to the first embodiment, large garbage floating on the surface of the river is brought to the bank side by the weir plate 8, and only the wastewater in the lower part, where there is less garbage, is raised along the front wall and sent to the receiving box. 10, so the elongated hole 12
The filter material 18 is less likely to become clogged or clogged.

(4) The equipment for lifting the main body is simple.

(5) They can be installed not only on independent rivers, but also on waterways branched off from rivers or waterways flowing into rivers.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention;
The figure is a plan view, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a view taken along line BB in FIG. FIG. 4 is a side view of the lifted main body of FIG. 3, FIG. 5 is a cross-sectional view of the river schematically showing the state in which it is installed alongside a lock when the river width is large, and FIG. 6 is a plan view of the second embodiment. Figure 7 shows C-C in Figure 6.
FIG. 1: Waterway, 2: Base, 3: Main body, 4: Support,
5: Rotating shaft, 6: Projection, 7: Front wall, 8: Weir plate, 9
a, 9b: Support plate, 10: Receiving box, 11: Bottom plate, 1
2: Elongated hole, 13: Side wall, 14: First space, 1
5: Filter box, 16: Rail material, 17: Mounting plate,
18: Filter material, 19: Second space, 20: Vertical bulkhead, 21: Bracket, 22: Wire rope, 2
3: Chain, 24, 25: Chain foil, 26:
Chain, 27: Lock gate, 28: Sewer pipe, 29: Mounting pipe, 30: Lower chamber, 31: Bulkhead, 32: Receiving box, 3
3: Bottom plate, 34: First space, 35: Filter box, 3
6: Porous bottom plate, 37: Second space, 38, 39,
40: Filter box, 41: Strut, 42: Main body, 43:
Air hole, 44: Hanging hand.

Claims (1)

[Scope of utility model registration request] A receiving box is provided at the top to allow wastewater from upstream to flow in, and the bottom of this receiving box is formed by a bottom plate that is bent in a corrugated manner and has a plurality of elongated holes drilled on its sloped surface, and a first space is separated below the bottom plate. A filter box with a bottom made of wire mesh or a perforated plate and filled with a filter material that purifies sewage water is installed in a manner that can be pulled out from the main body of the purifier, and below the first space, the filter box and outside air are connected to each other. 1 pair with the space that connects
A running water purification device characterized in that the bottom of the lowest filtration material box faces the downstream water surface with a space in between.