JP2003340476A - Water sprinkling structure for septic tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water sprinkling structure for a septic tank with which water is uniformly sprinkled to a microorganism filling layer to improve the clarification function of the microorganism and the efficiency of the water clarification is improved. <P>SOLUTION: This sprinkling structure is used for the septic tank used for secondarily treating water primarily treated in a water clarification pre- treatment apparatus and is composed of a suspended shaft provided in the septic tank body, a water receiving part provided on the suspended shaft, a rotation means for rotating the water receiving part, a water sprinkling part arranged at a position of a flow-out part formed on the water receiving part, and a water supply pipe provided above the water receiving part. The water supplied from the water supply pipe is uniformly sprinkled into the septic tank body from a plurality of jetting ports formed in the longitudinal direction of the sprinkling part. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a sprinkler mechanism for a septic tank. More specifically, it relates to a watering mechanism for a septic tank that can be suitably used for a purifying device that can purify dirty water such as river water and lake ponds into fresh water to restore the ecosystem.

[0002]

2. Description of the Related Art Conventionally, it has been attempted to improve the environment of rivers and lakes and ponds to purify polluted water so that fish, insects and the like can inhabit, and then release fresh water. For example, as a water purification device considering the natural ecosystem, there is a water purification device that performs a primary treatment of water and a septic tank that performs a secondary treatment of water. In this septic tank, a treatment layer such as a microbial packed layer, a soil construction method, an adsorption construction method, a redox construction method, an ultraviolet treatment construction method or a natural vegetation construction method is arranged, and the water that has been primarily treated by the water purification pretreatment device is Water is sprinkled on the packed bed of microorganisms. Such water sprinkling is usually performed by a water sprinkling structure in which pipes having holes at predetermined positions are arranged.

[0003]

However, in the water sprinkling structure using such a pipe, water sprinkling at a position close to the water supply position to the pipe and at a position apart from the water supply position differ depending on the water pressure, so that the water is evenly sprinkled. It's difficult. Therefore, there is a problem that the purification function of microorganisms cannot be sufficiently exerted and the efficiency of water purification is lowered.

In view of the above circumstances, the present invention provides a water sprinkling mechanism for a septic tank capable of uniformly sprinkling water on a microorganism-packed layer to improve the function of purifying microorganisms and improving the efficiency of water purification. With the goal.

[0005]

A sprinkler mechanism for a septic tank according to the present invention is a sprinkler mechanism used in a septic tank for secondarily treating water that has been primarily treated by a water purification pretreatment device. A shaft, a water receiving portion provided on the hanging shaft, a rotating means for rotating the water receiving portion, and a water sprinkling portion arranged at a portion of an outlet formed in the water receiving portion,
A water supply pipe provided on the water receiving portion, and water supplied from the water supply pipe is evenly sprinkled into the septic tank main body from a plurality of nozzles formed in the longitudinal direction of the water sprinkling portion. To do.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A sprinkler mechanism for a septic tank according to the present invention will be described below with reference to the accompanying drawings.

The water sprinkling mechanism for a septic tank of the present invention can be used in a septic tank that secondarily treats water that has been primarily treated by the water purification pretreatment device.

The water purification pretreatment device is not particularly limited in the present invention as long as it can primarily treat dirty water such as river water and lake ponds. For example, a pump 4 for sucking the water of the water source through the pipe 2 from the introduction portion arranged in the water of the natural water source.
And a removal mechanism 6 for removing dust from the sucked water
And a priming water supply mechanism 8 for filling the inside of the pipe 2 between the pump 4 and the water surface of the water source with priming water, an aeration mechanism for sending air to the introduction portion through the pipe, and a control panel 10. It can be used as a contaminant removal pumping system. This contaminant removal pumping system is housed in a case 12 made of steel or the like. This water purification pretreatment system uses a contaminant removal pumping system (primary treatment)
Since a strainer with a dust removal function that removes foreign substances while pumping water with a pump is incorporated in the introduction part of the pump, it is necessary to protect the pump and equipment and prevent clogging in the post process while sending water. Therefore, complicated maintenance can be eliminated.

A septic tank 22 having a water supply pipe 21 is arranged at a downstream position of the contaminant removal and pumping system which is the water purification pretreatment device. In this septic tank 22,
A microbial filling layer for secondary treatment of water, a soil construction method, an adsorption construction method, a redox construction method, a treatment layer such as an ultraviolet treatment construction method or a natural vegetation construction method, and a sprinkling mechanism for sprinkling water on the microbial filling layer are provided. ing.

As shown in FIGS. 1 to 3, the sprinkler mechanism has a hanging shaft 25 provided at an upper position of a septic tank main body 24 housed in a tank 23 and a water receiving portion 26 provided on the hanging shaft 25. A blade 27, which is a rotating means, disposed at an inner circumferential portion of the water receiving portion 26, and a portion of an outlet 28 formed on a bottom wall 26a of the water receiving portion 26,
That is, it is composed of, for example, four sprinklers 29 arranged below the bottom wall 26a, and a water supply pipe 30 provided on the blade 27 and distributed from the water supply pipe 21. Further, a plurality of nozzles 31 are formed in the longitudinal direction of the sprinkling section 29. In the present invention, the number and shape of the nozzles 31 are not particularly limited, and can be appropriately selected in consideration of the amount of water sprayed, the size of water droplets sprayed, and the like, for example, 10 to 16 liters / A total of 60 to 70 nozzles having a diameter of 3 mm can be provided so that the minute / m ² fountain can be sprayed. The injection port 31 may have a straight shape or the like, but as shown in FIG. 4, the funnel-shaped portion 3 is provided so that water can easily flow out.
It is preferable to be composed of 1a and the straight portion 31b. Further, in the shape shown in FIG. 4, water flows out as a vortex flow, so that algae do not grow on the inner surfaces of the funnel-shaped portion 31a and the straight portion 31b, and the outflow amount of water is stable. There is also an effect. The opening diameter D of the funnel-shaped portion 31a
As for the dimension of the opening diameter d of the straight portion 31b, for example, when the thickness t is 6 mm, the opening diameter D and the opening diameter d
Can be 10 mm and 3 mm, respectively. Further, in the present embodiment, a pipe having a substantially semicircular cross section is adopted as the water sprinkling portion 29, but the present invention is not limited to such a pipe, and if the water can flow radially outward. It is also possible to use pipes having other shapes such as a U-shape and a U-shape.

The structure for attaching the water receiving portion 26 to the hanging shaft 25 is not particularly limited as long as it is rotatable, and for example, a step portion of the hanging shaft main body 32 formed at the tip end is provided with a wear resistant material. After inserting the cylindrical water receiving portion 26, a screw shaft of the fitting shaft portion 33 is provided with a predetermined gap between the water receiving portion 26 and the drooping shaft main body 32 via a thrust bearing in which stainless steel balls are arranged. It is possible to employ one that is screwed into the screw hole of the stepped portion so as to be secured. Further, the numbers of the blades 27 and the water supply pipes 30 can be appropriately selected in consideration of the sprinkling efficiency, the sprinkling amount, etc., but in the present embodiment, each of them is six (six)
Has been Similarly, the position of the blade 27 with respect to the water supply pipe 30 is set to be the same as the interval between the water supply pipes 30 in order to improve the water spraying efficiency. The inclination angle of the blade 27 is, for example, about 10 to 80 degrees,
It may preferably be about 40-60 degrees.

In this embodiment, the blade 27 is rotated by water (primary treated water) supplied from the water supply pipe 30 and the inside of the septic tank main body 24 is discharged from the nozzle 31 formed in the longitudinal direction of the sprinkler 29. It can be sprayed evenly over the water. Therefore, the purification function of microorganisms can be improved. Further, by doing so, the efficiency of water purification can be improved and fresh water with high cleanliness can be obtained.

The microorganism-packed layer is not particularly limited in the present invention, and may be a commonly used one that decomposes organic substances or adsorbs pollutants to decompose microorganisms. . For example, a microbial utilization system that uses a zeolite that adsorbs ammonia (adsorbent) and a zeolite that captures dirt in water,
It is possible to use a titanium oxide composed of a photocatalytic matrix oxidative decomposition system for decomposing dirt. Further, instead of or in addition to the microorganism-packed layer, a treated layer such as a soil construction method, an adsorption construction method, a redox construction method, an ultraviolet treatment construction method or a natural vegetation construction method can be adopted.

Next, another embodiment of the present invention will be described. As shown in FIG. 5, the water sprinkling mechanism according to the present embodiment is a septic tank main body 2 housed in the tank 23.
4, a hanging shaft 51 rotatably provided via a bearing portion (not shown) provided at an upper position, a water receiving portion 52 provided on the hanging shaft 51, and an upper position of the water receiving portion 52. A water wheel mechanism 53 which is a rotating means, and a portion of an outlet 54 formed in the bottom wall 52a of the water receiving portion 52,
That is, for example, four sprinklers 55 arranged below the bottom wall 52a and the water supply pipe 21 to the storage tank 56.
And a water supply pipe 57 distributed via As the water turbine mechanism 53 in the present embodiment, a gear mechanism 58 connected to the hanging shaft 51 at the upper position of the water receiving portion 52, and a blade group 60 connected to a propulsion shaft 59 that operates the gear mechanism 58. Can consist of:
In the present embodiment, the first gear 58a fixed to the hanging shaft 51 at the upper position of the water receiving portion 52 and the first gear 58a.
A gear mechanism 58, such as a bevel gear, which is composed of a second gear 58b that is screwed into the gear, and a propulsion shaft 59 of the second gear 58b.
And a blade group 60 including a plurality of blades 60a connected to each other. Propulsion shaft 59 of water wheel mechanism 53
Are rotatably supported by bearings (not shown) arranged at both ends thereof.

In the present embodiment, the water (primary treated water) sent from the water supply pipe 21 is poured into the blade group 60 and passes through the propulsion shaft 59 and the gear mechanism 58, and the hanging shaft 51 and the water receiving portion. 52 is rotated at a predetermined rotation speed. The water poured into the blade group 60 is temporarily stored in the storage tank 5
After being stored in 6, the water supply pipe 57 from the inflow port 56a
Through which the water is received by the water receiving portion 52. This causes the water to
After flowing from the outlet 54 to the jet port 55a formed in the longitudinal direction of the fountain part 55, the water is evenly sprayed from the jet port 55a into the septic tank body 24. The injection holes 55a may have the same number and shape as the injection holes 31, for example.

It should be noted that in the above-described embodiment, the sprinkling section is rotated by the primary treated water, but the sprinkling section is rotated by using a drive source such as a motor without using the blade described above. You may allow it.

[0017]

As described above, according to the present invention,
Water can be evenly sprayed on the microorganism-packed layer to improve the purification function of microorganisms, and the efficiency of water purification can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view showing an embodiment of a sprinkler mechanism for a septic tank of the present invention.

FIG. 2 is a perspective view of a watering mechanism.

FIG. 3 is an enlarged view of a main part of the water sprinkling mechanism in FIG.

FIG. 4 is a cross-sectional view showing another embodiment of a nozzle.

FIG. 5 is a perspective explanatory view showing another embodiment of the water spray mechanism for the septic tank of the present invention.

[Explanation of symbols]

2 piping 4 pumps 6 Removal mechanism 8 priming water supply mechanism 10 control panel 12 cases 21 Water pipe 22 septic tank 23 Transparent tank 24 septic tank body 25 hanging axis 26 Water receiver 26a bottom wall 27 blades 28 Outlet 29 Sprinkler 30 water supply pipe 31 spout 31a Funnel-shaped part 31b Straight part 32 Pendant shaft body 33 Mating shaft

Claims (5)

[Claims] 1. A water sprinkling mechanism used in a septic tank that secondarily treats water that has been primarily treated by a water purification pretreatment device, comprising: a hanging shaft provided in the septic tank main body; and a water receiving portion provided in the hanging shaft. A rotating means for rotating the water receiving portion, a water sprinkling portion arranged at a portion of an outlet formed in the water receiving portion, and a water supply pipe provided on the water receiving portion. A septic tank sprinkling mechanism that evenly sprinkles the supplied water from a plurality of nozzles formed in the longitudinal direction of the sprinkling section into the septic tank body. 2. The rotating means is a blade arranged in a predetermined number at a circumferential portion of the water receiving portion, the water supply pipe is provided on the blade, and is supplied from the water supply pipe. The water sprinkling mechanism for a septic tank according to claim 1, wherein the blade is configured to rotate around the water. 3. The rotating means is a water wheel mechanism.
The watering mechanism for the septic tank described. 4. The water turbine mechanism comprises a gear mechanism connected to a hanging shaft at an upper position of the water receiving portion, and a blade group connected to a propulsion shaft for operating the gear mechanism.
The watering mechanism for the septic tank described. 5. The water spray mechanism for a septic tank according to claim 1, 2, 3 or 4, wherein the water spray section is a pipe having a substantially semicircular cross section.