JPH05206A - Water treating device - Google Patents

Abstract

PURPOSE:To obtain a novel water treating device in which the advantages thereof are further improved without damaging them in any way and further earth and sand and a suspended matter collected in the vicinities of the upper and lower centers of a cylinder are easily removed and treated by being interlocked with a pump installation in accordance with necessity. CONSTITUTION:A water treating device is constituted of a treating tank 1 having an inflow port and a drainage port, a vertical rotary cylinder 2 provided to nearly the center of the treating tank and driving sources 3, 31 for driving the rotary cylinder 2. Motive power is transferred to the rotary cylinder 2 from the driving sources 3, 31 in the parts excepting the center part of the cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment device, and more specifically, it is contained in all water such as rainwater, groundwater, river / lake water, seawater, domestic and industrial wastewater, especially sediment, suspended matter, The present invention relates to a water treatment device that improves the water quality by accumulating and removing plankton, algae debris, oil, and the like.

[0002]

2. Description of the Related Art Conventionally, water pollution of the above various water systems has remarkably progressed and natural destruction has progressed. For example, in the case of lakes and rivers, inflow of domestic wastewater and industrial wastewater causes eutrophication, and algae, microorganisms, and the like are proliferating to the extent that they cannot be recovered. Similarly, seawater is also being polluted due to the inflow of various wastewater and the outflow of crude oil. or,
In order to purify various contaminated water, many large water treatment equipment,
For example, activated sludge methods are widely used in factories, but these devices require large sites and huge construction costs, and are not suitable for small amounts of contaminated water or water purification in narrow spaces. There's a problem. As a water treatment device that solves the problems of the conventional art, a large number of devices that are small and simple and have a significantly low construction cost compared to the conventional example have been proposed by the inventor of the present application and are well received ( As an example, refer to Japanese Patent Publication No. 12525/1989.

[0003]

The water treatment apparatus by the inventor of the present application is basically such that a cylinder having an appropriate diameter is vertically rotated by a central axis in the treatment tank to generate a primary flow and a secondary flow in the water tank. A secondary flow is generated, and fine earth and sand with a specific gravity higher than that of water is accumulated in the center of the bottom of the treatment tank, while organic matter with a specific gravity smaller than that of water is accumulated in the vicinity of the rotating cylinder, especially in the center. The principle is to recover by various means. However, the accumulated sediment and suspended solids are
As a result of gathering toward the central axis that rotates the cylinder, the central axis is an obstacle to the collection of these aggregates. Therefore, a complicated pipeline and pump equipment for discharging from the bottom of the processing tank to the outside of the system are required, and there is always a risk of pipeline clogging, which is complicated to prevent pipeline clogging. Problems such as constant maintenance are required. Therefore, an object of the present invention is to further improve the water treatment apparatus already proposed by the present inventor without impairing any of their advantages, and to integrate the water treatment apparatus in the vicinity of the center of the upper and lower sides of the cylinder in cooperation with pump equipment as needed. It is an object of the present invention to provide a novel water treatment device that can easily remove and treat the accumulated sediment and suspended matter.

[0004]

The above object can be achieved by the present invention described below. That is, the present invention comprises a processing tank having an inflow port and a drain port, a vertical rotating cylinder provided substantially in the center thereof, and a drive source for driving the rotating cylinder.
A water treatment apparatus characterized in that the rotating cylinder is adapted to be vertically rotated by transmitting power from a drive source in a portion other than a central portion of the cylinder.

[0005]

[Operation] By rotating the rotating cylinder vertically in a portion other than the central axis of the cylinder in the treatment tank which is linked with the natural flow or pump equipment, the sediment and suspended matter accumulated above and below the cylinder are Since there is nothing at the center, it is possible to provide a means for collecting the accumulated matter at the center of the cylinder, and therefore, at the center of the upper and lower sides of the cylinder without impairing the advantages of the various water treatment devices already proposed by the present inventor. It is possible to easily remove and dispose of accumulated sediment and suspended solids.

[0006]

The invention will now be described in more detail with reference to the preferred embodiments shown in the drawings. The water treatment apparatus of the present invention, as shown in FIG. 1 and a partial sectional view of FIG. 2 and FIG. It is composed of a processing tank 1, a vertical rotating cylinder 2 provided substantially in the center thereof, and drive sources 3 and 3 ′ for driving the rotating cylinder 2. The rotating cylinder 2 is driven by a portion other than the central axis of the cylinder 2. It is characterized by being rotated vertically by sources 3, 3 '.

As shown in FIG. 1 (a), the treatment tank 1 has an inlet 4 for water to be treated which is a natural flow or is sent by a pump or the like not shown, and a drain 5 for discharging treated water. The shape of the tank is not particularly limited as long as the tank has an appropriate capacity, but preferably, as shown in FIG. 3, the inlet 4 is provided in the tangential direction of the tank 1, and the treated water flowing into the tank 1 is treated. Make it easy to flow along the wall of tank 1. Further, it is preferable that the drainage port 5 is provided in an appropriate position and has a bottomed substantially cylindrical shape. Of course, as shown in FIG. 1b, the bottom of the processing tank 1 may be provided with an inclination, or a sediment pool 6 or the like may be provided. The material, capacity, etc. of the treatment tank 1 may be appropriately changed depending on the condition of the water to be treated, that is, the treatment place, the amount of water, the amount of earth and sand or suspended matter contained, etc. It may be formed of any material such as metal, plastic such as hard vinyl chloride resin, wood, and the like, and usually has a volume of 0.5 to 500 m ³ , but is not limited thereto. When the treatment device of the present invention is mounted on a ship and used for purification of rivers, lakes and seas, the wall surface of the treatment tank 1 is partially opened to serve as an inflow port to prevent running water from a river or the like. Natural inflow may be measured by the speed of progress.

The rotary cylinder 2 is driven by drive sources 3, 3'such as a motor attached to a support 7 fixed to the processing tank 1. In the illustrated example, the shaft 3 of the motor 3, 3 '
1 is provided with a drive gear 32 at its tip, and meshes with a band gear 33 provided around the outer wall surface of the cylinder to rotate the cylinder 2 at an appropriate speed. A flange 34 for supporting the cylinder 2 is provided on the outer side of the upper portion of the cylinder, and the cylinder 2 is rotatably suspended by the motors 3 and 3'via friction reducing means such as a ball bearing 35. In this case, when there is a possibility that the whole treatment tank may be tilted due to ground subsidence or the like, it is preferable to provide an adjusting mechanism for keeping the rotating cylinder vertical. In the illustrated example, the rotational force of the motor is transmitted to the rotary cylinder 2 by the gear. For example, the gear is replaced with a hard rubber or a hard rubber coating, and the cylinder is rotated by the frictional force with the outer surface of the cylinder 2. The cylinder 2 may be rotated by other means such as.
In FIG. 1, two similar motors 3 and 3 ′ are shown on the left and right, but of course, the number of motors may be one as long as the rotary cylinder 2 is maintained substantially vertical. A method of making the rotating cylinder 2 rotatable without using the central portion of the rotating cylinder 2 is, for example, a similar flange (not shown) inside the upper end of the cylinder 2 or inside the middle stage.
May be provided, and the cylinder 2 may be rotatably suspended from the support 7 or may be rotatably supported by an arm (not shown) extending from the bottom of the processing tank 1 or the wall of the processing tank 1. Good.

At the lower part of the rotary cylinder 2, means 8 and 8'for preventing the horizontal shake of the rotary cylinder 2 are provided, but this is not essential, and when the rotary cylinder 2 does not laterally shake, or other If the lateral deviation is prevented by the method, the lateral deviation means 8 and 8'as shown in the figure are unnecessary. A sand removing passage 9 is formed in a substantially central portion of the rotary cylinder 2, and sediment 10 is discharged together with a part of the treated water by a pump or the like (not shown), and is collected and disposed in a sand reservoir (not shown). The pipe 11 provided on the side of the sand removing passage 9 is connected at its end to a compressor or the like that supplies compressed air, and compressed air can be introduced through the pipe 11 to assist the removal of earth and sand. The above is an example, and it is natural that the removal of the earth and sand may be performed by other methods. Of course,
If the water to be treated does not contain earth or sand, or if it does not need to be removed even if it does, the sand removing passage 9 or the like is unnecessary. In addition, this sand removing passage 9 is, as shown by the chain line in FIG.
By arranging the lower end thereof near the water surface, preferably slightly below the water surface, it can also be used for removing suspended matters accumulated in the central portion of the rotating cylinder 2.

FIG. 2 is a sectional view of a portion of FIG. 1 and is a view for explaining another embodiment of the present invention. A weir 12 that moves up and down according to the height of the water surface is provided on the wall surface of the rotating cylinder 2, and a bottomed suspended material reservoir 13 is formed inside the wall surface.
Floats 14 are collected in this reservoir 13. The floating material 14 accumulated in the floating material reservoir 13 is pumped up by a pump or the like (not shown) connected to the tip of the pipe 15 and disposed of by any means such as drying and incineration. Contrary to the above, in the case of treated water in which the suspended matter 14 does not exist, or the suspended matter 14
If it is not necessary to remove
Needless to say, the removing means of is unnecessary. The rotating cylinder 2 as described above has a diameter of about 10 to 30% of the diameter of the processing tank 1, and its length depends on the depth of the processing tank 1.
Further, it can be arbitrarily changed depending on the required processing capacity and power cost.

The rotating cylinder 2 is preferably made of stainless steel or an antiseptic metal in consideration of strength and antiseptic property. Also, the wall surface of the rotating cylinder 2 is usually smooth, but a large number of holes and grooves (not shown) are formed on the wall surface.
Can be provided to improve the frictional force with the water to be treated. When the rotating cylinder 2 is rotated in the same direction in the treatment tank 1 by the driving sources 3 and 3 ′, the water flow is accelerated by the frictional force between the rotating cylinder 2 and the water to be treated, and the flow velocity becomes closer to the wall surface of the cylinder 2. Becomes larger, and the flow velocity of the water to be treated decreases as it gets closer to the wall surface of the treatment tank 1. By this forced primary flow,
The suspended matter 14 existing on the surface of the treated water is attracted to the vicinity of the rotating cylinder 2, passes over the weir 12 provided at the upper part of the rotating cylinder 2, and is accumulated in the suspended matter reservoir 13, while being suspended in the water. The suspended or emulsified fine algae debris, plankton, oil droplets, etc. are floated on the water surface together with the suspended matter 14 by the forced secondary flow by the rotating cylinder 2 and attracted to the rotating cylinder 2.
Moreover, it is accumulated in the floating material reservoir 13 in the same manner as it crosses over the weir 12. It is preferable that the weir 12 be allowed to move up and down and overflow in case the water level becomes lower than that of the weir. On the other hand, the earth and sand 10 suspended in the water to be treated by the primary flow and the secondary flow of the rotating cylinder 2 are accumulated on the bottom surface of the processing tank 1 almost at the center of the rotating cylinder 2, and are suctioned and removed by the sand removing passage 9 in the same manner. Is processed.

Driving sources 3 and 3 for driving the rotating cylinder 2
A motor is generally used as', but hydraulic power, wind power, or other power source may be used. Examples a to f of FIG. 4 show other examples of the rotary cylinder 2, for example, an example of combination with a disk, and all have the same effects as the above. or,
In the present invention, the treatment tank 1 and the floating material reservoir 13 may be provided with various auxiliary equipment, such as a culture device for activated sludge, a catalyst, an adsorbent, an air diffuser, etc., if necessary.

[0013]

As described above, according to the present invention, the rotating cylinder is vertically rotated in a portion other than the central axis of the cylinder, so that the earth and sand accumulated on the upper and lower sides of the cylinder have nothing at the center of the cylinder. Since it does not exist, a means for collecting the accumulated matter can be provided at the center. Therefore, the accumulated sediment and suspended matter can be collected at the center of the upper and lower sides of the cylinder without impairing the advantages of the various water treatment devices already proposed by the present inventor. It can be easily removed and processed.

[0014]

[Brief description of drawings]

FIG. 1 is a side view of a water treatment device of the present invention.

FIG. 2 is a partial cross-sectional view of FIG.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a diagram for explaining another embodiment.

[Explanation of symbols]

1: Processing tank 2: rotating cylinder 3, 3 ': drive source

Claims (7)

[Claims] 1. A processing tank having an inflow port and a drain port, a vertical rotating cylinder provided substantially in the center thereof, and a drive source for driving the rotating cylinder, wherein the rotating cylinder is other than the central portion of the cylinder. The water treatment device is characterized in that the power is transmitted from the drive source in the above-mentioned part so that the device rotates vertically. 2. The water treatment device according to claim 1, wherein the power from the drive source is transmitted to the outer wall surface or the inner wall surface of the rotating cylinder. 3. The water treatment apparatus according to claim 1, wherein a means for removing sediment accumulated below the rotary cylinder is provided at the center of the rotary cylinder. 4. The water treatment device according to claim 1, wherein a floating material reservoir is provided inside or outside the rotating cylinder at the upper part of the rotating cylinder. 5. The water treatment device according to claim 1, wherein the floating material reservoir is provided with a weir for overflow, which is vertically movable. 6. The water treatment device according to claim 1, wherein a lateral shake preventing device for the rotating cylinder is provided below the rotating cylinder. 7. A water supply pump and / or a drainage pump is connected to the inflow port and / or the drainage port.
The water treatment device described in 1.