KR101301925B1 - A method for supporing the tank of a sewage diposal plant - Google Patents

Abstract

PURPOSE: A method for reinforcing a sewage storage tank in an individual sewage treatment device in which a stiffener ring is easily installed maintains the sewage storage tank from inside/external pressure, and protects the stiffener ring from corrosion caused by sewage. CONSTITUTION: A method for reinforcing a sewage storage tank in an individual sewage treatment device comprises the steps of: producing a groove (2) with the fixed depth along the peripheral part of the wall (1) of the sewage storage tank; inserting a stiffener ring (20) with a rectangular-shaped cross section along the groove; fixing the stiffener ring not to move the ring; sandblasting the fixed stiffener ring and spraying powerful resin paste to form a cover portion (30) for preventing corrosion of the stiffener ring.

Description

A method for supporing the tank of a sewage diposal plant}

The present invention relates to a method for reinforcing a sewage storage tank of a personal sewage treatment facility, and more particularly, to a sewage storage tank of a personal sewage treatment facility made of Fiber Reinforced Plastics (FRP) by a sewage method. A method of reinforcing a sewage storage tank that can be applied.

Although the discharge of sewage by sewage pipes contributes to the improvement of the living environment in residential areas to treat domestic sewage, which is the main cause of environmental pollution, in case of excessive inflow of pollutants, it causes pollution of the natural environment beyond the midnight action of the water system. As a result, problems such as transmission of infectious diseases due to water pollution, etc., are the primary personal sewage treatment facilities for treating sewage discharges through sewage pipes.

In Korea, according to the sewage law, "personal sewage treatment facility" is defined as a facility that treats sewage from buildings and facilities by sedimentation and decomposition, and the amount of sewage generated per day outside the sewage treatment area. If more than this, based on a 2m ³ is installed on the 'waste water treatment plants, and by specifying that the following description to install the "tank" (alone tank of the precipitation decay equation), classifying the individual sewage treatment plant to the sewage treatment plant with septic tanks Doing.

Of course, the sewage treatment facilities specified in the Korean Sewerage Act are not limited, but various methods can be selectively applied. However, the most typical and general sewage treatment facilities are used for adjusting the flow rate of sewage and separating sludge. It may be composed of a flow adjusting tank, an aeration tank for maintaining the BOD value at a normal value, a precipitation tank for sediment separation, a discharge tank, a septic tank, and the like.

However, in the sewage treatment facility of the general structure, the space for each treatment section is partitioned by an FRP partition wall having an opening, and the FRP reinforcement ring is installed to reinforce the pressure strength at 1.5 m intervals along the longitudinal direction of the sewage treatment facility.

Generally, sewage treatment facilities are made of fiber-reinforced plastics (FRP), which are lightweight materials, and fiber-reinforced plastics are resins that have improved physical properties such as mechanical strength and heat resistance by compounding synthetic resins with fibrous reinforcements such as glass fibers and carbon fibers. It is used for various purposes in various fields.

However, when manufacturing a personal sewage treatment facility with the FRP, it is necessary to install a reinforcement ring to withstand the internal pressure. Therefore, recently, a reinforcing band for reinforcing the septic tank is attached to the outer circumference of the septic tank and manufactured and installed.

As a technique, Korean Utility Model No. 0340728 discloses a partition wall for bordering each thread, and a rectangular reinforcement ring for increasing the pressure resistance of the septic tank at a distance between the partition walls or at a predetermined interval. Looking at this technical configuration describes the reinforcing ring made of FRP integrally with the tank inside the septic tank.

However, in order to manufacture the FRP reinforcement ring that satisfies these standards, when the diameter of the FRP hollow tank is 1500-2800mm, the reinforcement ring must be manufactured in a solid shape having a width of at least 10 cm and a thickness of 8 to 10 cm or more. FRP must be made by adding glass fiber roving cloth and / or mat one by one due to its manufacturing characteristics. Therefore, it is very cumbersome to make the FRP reinforcing ring at least 8 to 10 cm thick. Since it takes a long time, there is a problem that the material cost and labor cost increase accordingly, become an important factor to limit the process efficiency and economics.

For this reason, the installation of FRP reinforcement rings in accordance with statutory requirements not only significantly increases the manufacturing period of the FRP sewage treatment plant (cleaning tank) but also results in defects in the sequential lamination process of glass fiber roving cloths and / or mats. There is a high possibility of a defect problem.

Korean Patent No. 1124499 discloses a reinforcing ring using a steel pipe material to solve the problem of the reinforcing ring made of FRP as described above. Here, the pipe loop using the piping steel pipe is provided. However, since the reinforcing ring used here forms a pipe with a rounded circular cross section, it is difficult to install at regular intervals in the storage tank of the sewage treatment facility. The breakdown from the tank greatly reduces the pressure resistance and eventually can not function properly of the reinforcing ring.

The present invention is to solve the problems according to the prior art as described above, not only can easily fix the reinforcing ring made of section steel to the storage tank of the sewage treatment facility, but also strongly adheres to the reinforcing ring FRP or resin adhesive By applying ss to protect the reinforcing ring from sewage and to prevent corrosion.

As a means for achieving the object of the present invention, forming a groove of a predetermined depth in the sewage storage tank so that the reinforcing ring can be easily mounted to the sewage storage tank of the sewage treatment facility at regular intervals, the section steel along the groove Mounting a reinforcing ring consisting of a rod, and spraying a resin adhesive so that the reinforcing ring does not escape from the sewage storage tank and is not corroded.

According to the present invention as described above, the reinforcement ring is mounted on the sewage storage tank of the sewage treatment facility, which not only maintains the tank from the internal / external pressure, but also the reinforcement ring is easily mounted, and the strong adhesion between the reinforcement ring and the tank. Since no gaps are created, the reinforcing ring can be protected from corrosion due to sewage.

1 is an exemplary view showing that the reinforcing ring is mounted on the sewage storage tank of a general personal sewage treatment facility,
2 is a cross-sectional view taken along line BB of FIG.
3 is a mounting flowchart of the reinforcing ring according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In general, the sewage storage tank 10 is partitioned according to each use, for example, a flow control tank separating sewage from the flow of sewage, an aeration tank for maintaining the BOD removal ratio at a normal rate, and a precipitate. It is divided into sedimentation separation tank which can be separated, and discharge tank of the last stage.

A partition wall is laid around the partition between each purification process, and the center between the partition walls and the tank having a large partition space are provided with a plurality of reinforcing rings in the tank at regular intervals regardless of the partition to separate the sewage storage tanks 10. Mount the reinforcing ring 20 having a rectangular cross section to increase the durability of the.

The mounting method of the reinforcing ring according to the present invention is as follows.

1 shows an exemplary view of mounting the reinforcement ring 20 in the general wastewater storage tank 10, and the reinforcement ring 20 is mounted at a predetermined interval in the middle of the wastewater storage tank 10. FIG. 2 is a cross-sectional view taken along the line B-B in FIG. 1, and it can be seen that the reinforcing ring 20 has a round shape. It is mounted according to an embodiment of the present invention along the inner circumference of the wall 1 of the sewage storage tank 10,

First, the grooves 2 are created to a certain depth along the inner surface of the wall 1 of the tank 10.

The reinforcing ring 20 is fixed without being flown by fitting the reinforcing ring 20 having a predetermined cross section, preferably a rectangular cross section, along the created groove 2.

A strong resin adhesive is applied after sand blasting the fixed reinforcing ring 20, and preferably, the cover portion 30 is formed by applying FRP after applying an unsaturated polyester resin.

10: Sewage Storage Tank
20: reinforcement ring
30: cover part

Claims (3)

In the method of reinforcing the sewage storage tank of personal sewage treatment facility,
Reinforcement is created by creating a groove 2 at a constant depth along the periphery of the inner surface of the wall 1 of the sewage storage tank 10, and fitting a reinforcing ring 20 having a square cross section along the groove 2 thus formed. The ring 20 is fixed so as not to flow, and after the sand blasting of the fixed reinforcing ring 20 by applying a strong resin adhesive to form a cover portion 30 to the corrosion of the reinforcing ring 20 A method of reinforcing a sewage storage tank of a personal sewage treatment facility, characterized in that it is prevented.
The method of claim 1,
The depth of the groove (2) is 1 to 5 mm, characterized in that for reinforcing the sewage storage tank of the personal sewage treatment facility.
The method of claim 1,
The resin adhesive is a method for reinforcing a sewage storage tank of a personal sewage treatment facility, characterized in that using an unsaturated polyester resin.

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