JP2006183395A - Installation method of grease trap apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installation method of a grease trap apparatus capable of easily changing an installation place even if a floor slab is so placed that the strength of the floor slab is hard to lower, installation also does not take any labor and that the floor slab having a through-hole can be formed. <P>SOLUTION: In the installation method of a grease trap apparatus installing a trap tank 7 equipped with a fat and oil separation tank and a drainage trap 6 on a floor providing a floor formation concrete providing a waterproof layer 21 on the floor slab 3, it includes a trap tank installation process interlocking the floor slab around the through-hole with a collar 19 provided to the trap tank by inserting the trap tank in the through-hole in a state to place the floor slab so as to form the through-hole for insertion of the trap tank and providing so as to overlap the waterproof layer over the upper surface of the collar and the upper surface of the floor slab and after that, a fat and oil separation tank installation process mounting the oil separation tank on the waterproof layer, connecting so that fat and oil separation tank communicates with the trap tank and placing the floor surface formation concrete layer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention separates the oil / fat from the oil / fat separation tank capable of separating the oil / fat in the drainage on the floor provided with the concrete layer for forming the floor surface with the waterproof layer sandwiched on the concrete floor slab. The present invention relates to an installation method of a grease trap facility in which a trap tank having a drain trap capable of discharging drainage is installed.

The grease trap facility is provided so that drainage in a restaurant kitchen or the like can be discharged to a drain pipe or the like after removing oils and fats mixed in the drainage.
For example, construction work for large tenant buildings takes a long period of time, and tenants are often not decided at the stage of building construction.
For this reason, when floor concrete placement work is performed on a floor where a restaurant or the like is planned, there arises a problem of how to cope with installation of a grease trap facility that requires penetration of a floor slab.
The following two methods are mainly taken as countermeasures.
a. Assuming the kitchen layout, set up oil and fat separation tanks and trap tanks and place floor concrete.
b. Floor concrete will be cast without any openings for the grease trap facility, and suspension work will be performed later when the tenant's kitchen layout is decided.
In a conventional grease trap facility, a grease trap unit in which an oil separation tank and a trap tank are integrated is fitted into a through-hole formed in a floor slab (for example, see Patent Documents 1 and 2; (Referred to as “1 prior art”), the oil / fat separation tank and the trap tank are not integrated, but are individually fitted in through holes formed in the floor slab and connected by connecting pipes or the like (for example, , See Patent Document 2: hereinafter referred to as second prior art).
In addition, when forming a through hole in the floor slab, before forming the floor slab, the floor slab is placed after the floor slab is formed so that the floor slab having the through hole is formed. This has also been practiced conventionally (see, for example, Patent Documents 1 and 2).

Japanese Patent No. 2834066 JP 2000-291125 A

According to the first prior art, the floor slab cannot be installed unless a large through hole is formed in the floor slab so that a large grease trap unit in which the oil separation tank and the trap tank are integrated is fitted. There is a drawback that it tends to decrease.
According to the second prior art, since it is only necessary to form a relatively small through hole in the floor slab for each of the oil separation tank and the trap tank, compared with the first prior art, the strength of the floor slab is less likely to decrease. Since it is necessary to form a through-hole for each of the oil separation tank and the trap tank in the floor slab, there is a drawback that installation takes time.
In addition, in both the first and second prior arts, a floor slab is placed after a form for forming a through hole is provided before the floor slab is placed so that a floor slab having a through hole can be formed. When installing the floor slab, it is necessary to decide where to install the oil separation tank and trap tank. After installing the floor slab, install the floor slab according to the layout change of the kitchen. There are drawbacks that are difficult to change.
The present invention has been made in view of the above circumstances, and it is difficult to reduce the strength of the floor slab and is difficult to install, and in addition, the floor slab is formed so that a floor slab having a through hole can be formed. An object is to provide a method for installing a grease trap facility that is easy to change the installation location even when placing.

  The first characteristic configuration of the present invention is an oil / fat separation tank capable of separating oil / fat in drainage on a floor provided with a concrete layer for forming a floor surface, sandwiching a waterproof layer on a concrete floor slab, A method for installing a grease trap facility in which a trap tank equipped with a drain trap capable of discharging drainage from which oil and fat has been separated is installed, wherein the floor slab is formed so that a through-hole into which the trap tank can be inserted is formed. The trap tank is inserted into the through-hole in a state where it is placed, and is locked to a floor slab around the through-hole with a scissors provided in a series of rings on the outer peripheral side of the trap tank, and the waterproof layer Is provided so as to overlap the upper surface of the trough and the upper surface of the floor slab, and after the trap tank installation step, the oil separation tank is placed on the waterproof layer after the trap tank installation step. Installed on the And fat separation tank is connected so as to communicate with the trap chamber, is the floor-forming concrete layer in that is provided with the oil separation tank installation step of pouring.

[Action and effect]
In the trap tank installation step, the trap tank is inserted into the through hole in a state where the floor slab is placed so that a through hole into which the trap tank can be inserted is formed. Since the separation tank is installed on the waterproof layer, the oil separation tank is connected so as to communicate with the trap tank, and the concrete layer for floor surface formation is placed, so before the floor slab is placed, the oil separation tank There is no particular need to determine the installation location, and there is no need to provide a through-hole into which the oil separation tank can be inserted in the floor slab.
Therefore, the strength of the floor slab is less likely to be reduced, and the installation is less troublesome. In addition, even when the floor slab is placed so that a floor slab having a through hole for the trap tank can be formed, the oil and fat separation tank It is easy to change the installation location of the trap tank without any particular restrictions depending on the installation location of the trap tank.
Further, in the trap tank installation step, the trap tank is locked to the floor slab around the through-hole with a series of ring-shaped hooks on its outer peripheral side, and the waterproof layer extends over the top surface of the fence and the top surface of the floor slab. Since the trap tanks are provided so as to overlap, a waterproof layer can be formed in series over the top surface of the ridge and the top surface of the floor slab, and the waterproof effect of the waterproof layer can be easily maintained over a long period of time.

  A second characteristic configuration of the present invention is an oil and fat separation tank capable of separating oil and fat in drainage on a floor where a concrete layer for forming a floor surface is placed on a concrete floor slab with a waterproof layer interposed therebetween, , A method for installing a grease trap facility in which a trap tank equipped with a drain trap capable of discharging drainage from which oil and fat has been separated is installed, and a drain pipe portion extending from the trap tank of the drain trap can be freely inserted In such a state that the floor slab is driven so that a through hole is formed, a series of annular ridges provided on the outer peripheral side of the drain pipe portion overlap the floor slab around the through hole. Trap tank installation in which a drain pipe portion is inserted into the through hole, the trap tank is installed on the floor slab, and the waterproof layer is provided so as to overlap the upper surface of the basket and the upper surface of the floor slab Process and the trap After the tank installation step, the oil separation tank is installed on the waterproof layer, the oil separation tank is connected to communicate with the trap tank, and the floor forming concrete layer is placed. The tank installation step is provided.

[Action and effect]
In the trap tank installation process, the drain pipe part is inserted into the through-hole with the floor slab placed so that the drain pipe part extending from the trap tank of the drain trap can be inserted. Then, the trap tank is installed on the floor slab, and in the subsequent oil separation tank installation process, the oil separation tank is installed on the waterproof layer, and the oil separation tank is connected to communicate with the trap tank, Since the floor forming concrete layer is placed, there is no need to decide where to install the oil separation tank before placing the floor slab, and it is necessary to provide a through hole into the floor slab where the oil separation tank can be inserted. Nor.
Therefore, the strength of the floor slab is less likely to be reduced, and the installation is less time-consuming.In addition, even when the floor slab is placed so that a floor slab having a through hole for a drain pipe can be formed, It is easy to change the installation location without any particular restrictions depending on the installation location of the trap tank.
In addition, in the trap tank installation process, the drain pipe portion is inserted into the through hole so that the series of annularly provided ridges on the outer peripheral side overlap the floor slab around the through hole, and the waterproof layer Since it is provided so as to overlap with the upper surface of the floor slab, a waterproof layer can be formed in series over the upper surface of the ridge and the upper surface of the floor slab, and the waterproof effect of the waterproof layer can be easily maintained over a long period of time. .

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
1 to 3 show a grease trap facility installed on a floor 1 of a kitchen. As shown in FIG. 2B, a cinder concrete layer is sandwiched between a concrete floor slab 3 with a waterproof layer 21 interposed therebetween. A fat separation tank comprising a floor layer forming concrete layer 2 such as a floor 1 and integrally including a blocking portion 30 into which drainage 4 flows and an oil separation portion 31 capable of separating the fat and oil in drainage 4. 5 and a trap tank 7 provided with a drain trap 6 capable of discharging drainage 4 from which oil and fat are separated are connected to each other by a drain line 8 provided in the concrete layer 2 for forming a floor surface. It is.
Instead of the drainage pipe 8, a groove having the same depth as the pipe bottom of the drainage pipe 8 may be used.

  The oil and fat separation tank 5 is made of a material such as a steel plate, a stainless steel plate, an aluminum alloy, or a reinforced plastic, and is formed in a rectangular box shape with an upper portion opened to a depth that can be accommodated in the floor forming concrete layer 2. The oil and fat content therein can be separated at a specific gravity near the liquid surface, the inlet 10 for allowing the drainage 4 to flow into the intercepting portion 30 from the drainage groove 9, and the wastewater after separating the oil and fat content in the fat and oil separation portion 31. 4 is provided in the trap tank 7 and a basket 12 for removing food residues and the like contained in the drainage 4 is provided near the inlet 10 of the blocking portion 30, and the rectifying plate 13 and the upper opening are provided. A covering inspection lid 14 and the like are provided.

  The drainage groove 9 is formed in the floor surface forming concrete layer 2 and is provided with a groove lid 15 covering the upper opening.

The trap tank 7 is made of a material such as a steel plate, a stainless steel plate, an aluminum alloy, a reinforced plastic, or the like, and is a quadrangle such as a square in which the upper part of the depth penetrating through the floor forming concrete layer 2 and the floor slab 3 is opened. The drain is provided with an inspection lid 16 that covers the upper opening and is provided with an inlet 17 for opening the drainage pipe 8 and an inspection cap 32 that can open and close the upper end of the drainage pipe 18. A trap 6 is provided on the outer peripheral side of the trap 6, and a locking bar 19 that is locked to the upper surface of the floor slab 3 when fitted into a rectangular through-hole 20 formed when the floor slab 3 is placed is provided on the entire circumference. It is provided in a liquid-tight manner and in a series of rings.
In addition, the said trap tank 7 may be formed in the box shape whose outer periphery shape is cylindrical so that it can install in the state inserted in the circular through-hole 20 formed at the time of placement of the floor slab 3. As shown in FIG.

Next, the installation method of the said grease trap installation by this invention is demonstrated in order of a trap tank installation process and the subsequent fats and oils separation tank installation process.
In the trap tank installation step, as shown in FIG. 1 (a), a through hole forming mold is formed before the floor slab 3 is placed so that a square through hole 20 into which the trap tank 7 can be inserted is formed. After the frame A is provided, the concrete of the floor slab 3 is placed, and with the floor slab 3 placed, the trap tank 7 is inserted into the through-hole 20 as shown in FIG. Then, it is inserted so as to be locked to the floor slab 3 around the through-hole 20 by the locking collar 19, and then the waterproof layer 21 is attached to the upper surface of the locking collar 19 as shown in FIG. The trap tank 7 is installed so as to overlap the upper surface of the floor slab 3.
The trap tank 7 may be fixed to the floor slab 3 side with an anchor member or the like.

  The waterproof layer 21 is formed of a waterproof sheet made of rubber or soft resin, and is arranged on the outer peripheral side of the trap tank 7 over the entire circumference so as to face the locking collar 19 and the locking collar 19. The sheet mounting rod 22 is sandwiched and adhered between the sheet mounting rods 22 that are liquid-tight and provided in a series of annular shapes, and extends between the sheet mounting rod 22 and the locking rod 19 while penetrating the waterproof sheet 21. It is fixed with screws 23 that are tightened.

  In the oil separation tank installation step, as shown in FIG. 2 (a), the oil separation tank 5 is installed on the waterproof sheet 21 in a position and posture according to the layout of the kitchen. As shown in FIG. 3, the floor surface forming concrete layer 2 is placed on the waterproof sheet 21 so that the drain grooves 9 and the drain pipes 8 can be formed, and the oil separation tank 5 communicates with the trap tank 7. Connect as follows.

[Second Embodiment]
FIG. 4 shows another embodiment of the installation method of the grease trap equipment according to the present invention, in which two oil separation tanks 5 and one trap tank 7 are arranged in an L shape sandwiching the trap tank 7, and two oils and fats are arranged. The separation tank 5 is installed so as to be connected to a common trap tank 7 through a drain pipe 8.
Other configurations are the same as those of the first embodiment.

[Third Embodiment]
5 and 6 show another embodiment of the installation method of the grease trap equipment according to the present invention. This grease trap equipment has a fat and oil separation tank 5 formed in a rectangular box shape and an outer peripheral wall 25 having a cylindrical shape. The trap tank 7 is provided so as to be freely connected integrally.

  That is, as shown in FIGS. 6 (b) and 7, a circular through hole 26 is formed in the bottom plate portion on the downstream side of the oil / fat separation tank 5, and the weir plate 28 is U-shaped around the through hole 26. A connecting flange 27 is provided on the upper edge of the trap tank 7 so as to be liquid-tight over the entire circumference and in a series of annular shapes. The oil / fat separation tank 5 and the trap tank 7 are integrally provided by welding or the like at the installation site, and a circular through-hole formed in the floor slab 3 is provided below the connection flange 27 of the trap tank 7. A fixing rod 19 that is engaged with the upper surface of the floor slab 3 when fitted into the floor slab 3 is provided in a liquid-tight manner and in a series of rings around the entire circumference.

  In the trap tank installation step, as shown in FIG. 5 (a), before the floor slab 3 is placed, a through hole is formed so that a circular through hole 20 into which the trap tank 7 can be inserted is formed. After the formwork A is provided, the concrete of the floor slab 3 is placed, and with the floor slab 3 placed, the trap tank 7 is inserted into the through hole 20 as shown in FIG. Then, it is inserted so as to be locked to the floor slab 3 around the through hole 20 by the locking rod 19, and then a waterproof layer 21 such as asphalt is applied to the locking rod as shown in FIG. The trap tank 7 is installed so as to overlap the upper surface of 19 and the upper surface of the floor slab 3 and to be substantially flush with the upper surface of the connecting flange 27.

  In the oil separation tank installation step after the trap tank installation step, as shown in FIG. 6 (a), the oil separation tank 5 is positioned around the axis X of the trap tank 7 according to the layout of the kitchen. The through hole 26 formed in the bottom portion is positioned so as to be concentric with the axis X, and is installed across the upper surface of the waterproof layer 21 and the connection flange 27 of the trap tank 7. Are connected in a liquid-tight manner to the bottom plate portion around the through hole 26 of the oil / fat separation tank 5 by bolts / nuts or welding so that the oil / fat separation tank 5 communicates with the trap tank 7.

Next, as shown in FIGS. 6B and 7, the floor surface forming concrete layer 2 is placed on the waterproof layer 21 so that the drainage groove 9 can be formed, and the oil separation tank 5 and the trap The tank 7 is fixed so as to be embedded in the floor surface forming concrete layer 2.
Other configurations are the same as those of the first embodiment.

[Fourth Embodiment]
8 and 9 show another embodiment of the installation method of the grease trap equipment according to the present invention. This grease trap equipment is shown in FIG. 9 (b) instead of the trap tank 7 shown in the first embodiment. Thus, on the floor slab 3, the trap tank 7 fixed so that it may embed in the concrete layer 2 for floor surface formation is installed.

  As shown in FIG. 9 (b), the trap tank 7 is provided with a series of annular ridges 24 on the entire outer periphery of the bottom thereof, and is provided with a series of annular troughs 24. A cylindrical drainage pipe part 29 extending from the pipe 24 and penetrating the pipe 24, and the outer circumference of the drainage pipe part 29 is provided with a liquid-tight and series of ring-shaped pipes 33 over the entire circumference. A drain pipe portion 29 is passed through the floor slab 3.

  In the trap tank installation step, as shown in FIG. 8 (a), the through hole is formed before the floor slab 3 is placed so that the circular through hole 20 into which the drain pipe portion 29 can be inserted is formed. In the state in which the concrete of the floor slab 3 is placed and the floor slab 3 is placed, as shown in FIG. 3, the drain pipe portion 29 is inserted into the through hole 20, the trap tank 7 is installed on the floor slab 3, and then a waterproof layer such as asphalt as shown in FIG. 21 is provided so as to overlap the upper surface of the ridges 24 and 33 and the upper surface of the floor slab 3.

In the oil / fat separation tank installation step after the trap tank installation step, as shown in FIG. 9 (a), the oil / fat separation tank 5 is installed on the waterproof layer 21 in a position and posture according to the layout of the kitchen. 9 (B), the floor surface forming concrete layer 2 is placed on the waterproof layer 21 so that the drainage groove 9 and the drainage pipe 8 can be formed, and the oil separation tank 5 is the trap tank. 7 is connected to communicate.
Other configurations are the same as those of the first embodiment.

[Other Embodiments]
1. The grease trap equipment installation method according to the present invention may perform the oil separation tank installation step immediately after the trap tank installation step, or may perform the oil separation tank installation step after a desired number of days have elapsed.
2. The method for installing the grease trap facility according to the present invention may be used to install an oil separation tank that does not have an obstructing part integrally, that is, an oil separation tank that has only an oil separation part.
3. The installation method of the grease trap facility according to the present invention may be implemented by providing a waterproof sheet or a bitumen waterproof layer as a waterproof layer, and a coating waterproof layer made of resin or the like.

Vertical section showing how to install grease trap equipment Vertical section showing how to install grease trap equipment Top view showing how to install grease trap equipment The principal part top view which shows 2nd Embodiment Longitudinal sectional view showing the third embodiment Longitudinal sectional view showing the third embodiment The top view which shows 3rd Embodiment Longitudinal sectional view showing the fourth embodiment Longitudinal sectional view showing the fourth embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor 2 Concrete layer for floor formation 3 Floor slab 4 Drainage 5 Oil separation tank 6 Drain trap 7 Trap tank 19 鍔 20 Through-hole 21 Waterproof layer 29 Drain pipe part 33 コ ン ク リ ー ト

Claims (2)

Oil separation tank capable of separating oil and fat in drainage and drainage from which the oil and fat are separated can be discharged on the floor where a concrete layer for floor formation is provided on a concrete floor slab with a waterproof layer. An installation method of a grease trap facility for installing a trap tank equipped with a drainage trap,
The trap tank is inserted into the through-hole in a state where the floor slab is placed so that a through-hole into which the trap tank can be inserted is formed, and is provided in a series of rings on the outer peripheral side of the trap tank. A trap tank installation step of installing the trap tank by engaging the floor slab around the through-hole with a hook and providing the waterproof layer so as to overlap the upper surface of the hook and the upper surface of the floor slab. When,
After the trap tank installation step, the oil separation tank is installed on the waterproof layer, the fat separation tank is connected so as to communicate with the trap tank, and the floor surface forming concrete layer is cast. A method for installing a grease trap facility that includes an oil / fat separation tank installation step. An oil separation tank capable of separating oil and fat in the drainage and a drainage separated from the oil and fat on the floor where the concrete layer for forming the floor surface is placed on the concrete floor slab with a waterproof layer in between. A grease trap installation method for installing a trap tank equipped with a drainable drain trap,
In a state where the floor slab is driven so that a drain hole extending from the trap tank of the drain trap can be inserted, a series of annular shapes are provided on the outer peripheral side of the drain pipe portion. The trap pipe is installed on the floor slab, the drain pipe portion is inserted into the through hole, and the waterproof layer is placed on the upper surface of the ridge so that the trap is overlapped with the floor slab around the through hole. And a trap tank installation step provided so as to overlap with the upper surface of the floor slab,
After the trap tank installation step, the oil separation tank is installed on the waterproof layer, the fat separation tank is connected so as to communicate with the trap tank, and the floor surface forming concrete layer is cast. A method for installing a grease trap facility that includes an oil / fat separation tank installation step.

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