JP4488637B2 - Oil and fat interceptor and its basket - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil and fat interceptor with good oil and oil interception efficiency, and a solid matter collecting basket used therefor.
[0002]
[Prior art]
As is well known, an oil and fat interceptor is a device that intercepts oil and solids contained in miscellaneous wastewater discharged from restaurants and general household kitchens. A collection basket is always installed.
[0003]
FIG. 7 is a cross-sectional view showing an example of such a conventional oil and fat interceptor. The tip of a water conduit 2 serving as an inflow port is inserted into the side wall of a bucket-type interceptor body 1. A solid collection basket 3 is attached to the tip of 2. And the cylinder part 4a of the trap 4 used as an outflow port is inserted in the other side of this interceptor main body 1 from the inner side, and the drain pipe 6 is connected to this cylinder part 4a via the socket-type coupling 5. . The basket 3 for collecting solid matter described above is a water-permeable basket that is assembled into a box shape by means of welding or the like using a perforated plate in which a large number of holes are formed on both the front and rear side plates and the bottom plate. is there.
[0004]
In such an oil and fat interceptor, solids (not shown) contained in miscellaneous wastewater flowing from the conduit pipe 2 serving as an inflow port are collected and separated by the basket 3 and are contained in miscellaneous wastewater. Most of the fats and oils O that have passed through the lower end opening of the trap 4 are floated and separated on the water surface before flowing out from the outlet.
[0005]
[Problems to be solved by the invention]
However, in the oil and fat interceptor, when miscellaneous wastewater flows in from the inflow port 2 vigorously, the oil and fat O that floats and separates on the water surface and stirs and entrains the oil and fats in the basket 3 (particularly the basket 3). From the front plate and the bottom plate), and a strong water flow is formed through the lower end opening of the trap 4 toward the outlet 4a. Therefore, the fats and oils O contained in the miscellaneous wastewater and the involved fats and oils O are not easily floated and separated on the water surface before being sent to the lower end opening of the trap 4 by this strong water flow. Since the oils and fats O are discharged through the lower end opening of the trap 4, there is a problem in that the oil and fats O are not so effective in intercepting.
[0006]
The present invention has been made to cope with the above problems, and an object of the present invention is to provide an oil and fat catcher with improved oil and fat catching efficiency and a basket for collecting the solid matter. .
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is directed to a fats and oils interceptor in which a basket for collecting solid matter that can be freely passed through the inflow port is provided. the front plate of the basket and left and right ends are not in contact without any gap to the sidewall of the interceptor body which Ri per is characterized in that it is formed by passing water non imperforate plate.
[0008]
Like this fat and oil interceptor, if the front plate of the basket attached to the inlet is formed of a non-perforated plate that cannot pass water, the miscellaneous drainage that flowed in from the inlet hits the front plate and reverses, The momentum is weakened, and the water flows out from a large number of water-permeable holes in the rear plate of the basket, the left and right side plates, and the bottom plate, and a gentle water flow toward the outlet is formed. Therefore, most of the fats and oils contained in miscellaneous wastewater and the fats and oils caught in the inflow are floated and separated on the water surface before being sent to the outlet by this gentle water flow. As a result, the oil and fat interception efficiency is greatly improved.
[0009]
Next, the invention according to claim 2 is characterized in that, in the oil and fat interceptor according to claim 1, the bottom plate of the basket is also formed of a non-perforated plate which cannot pass water.
[0010]
In such a fat and oil interceptor, after the miscellaneous wastewater that has flowed in vigorously from the inflow port hits the non-porous front plate of the basket and then reverses, it reverses by hitting the non-porous bottom plate and the momentum is further weakened. It flows out from many water-permeable holes of the face plate and the left and right side plates. Therefore, a gentler water flow toward the outlet is formed, and the fats and oils are floated and separated more reliably, so that the oil and fats intercepting efficiency is further improved.
[0011]
Next, the invention according to claim 3 is the oil and fat interceptor according to claim 1, wherein the bottom plate of the basket is formed of a plate having a water passage hole in the latter half or part thereof. Is.
[0012]
If the bottom plate of the basket is a non-perforated plate, when removing the basket from the interceptor and removing the solid matter in the basket, the water at the bottom of the basket cannot be drained and the water remains mixed. Although the inconvenience of having to throw away things arises, in this oil and fat interceptor, since water can be drained by the water passage hole formed in the latter half part or part of the bottom plate, the above inconvenience can be solved. And inflow miscellaneous drainage can be reversed in the front half part of the basket bottom face plate in which the water-permeable hole is not formed, and the interception efficiency can also be improved.
[0013]
Next, the invention according to claim 4 is the oil and fat interceptor according to claim 1, characterized in that the left and right side plates of the basket are formed of plates having water passage holes in the rear half thereof. It is.
[0014]
In such a fats and oils interceptor, after the miscellaneous wastewater that has flowed in vigorously from the inlet hits the non-hole front plate of the basket and is reversed, the momentum further hits the front half of the right and left side plates where the water passage holes are not formed. It is weakened, and it flows out from the water flow holes formed in the rear plate of the basket and the rear half of the left and right side plates, and a more gentle water flow toward the outlet is formed, so that the fats and oils float and separate more reliably As a result, interception efficiency is further improved.
[0015]
Next, the invention according to claim 5 is a water-permeable basket for collecting solid matter attached to the inflow port of the oil and fat interceptor, and the left and right ends abut against the side wall of the interceptor body without a gap. and does not have a front plate left and right side plates and rear plate and the bottom plate, and wherein said front plate gray water hits vigorously flowing from the inlet is formed by the water flow non imperforate plate To do. The invention according to claim 6 is characterized in that, in the basket according to claim 5, the bottom plate is also formed of a non-perforated plate that cannot pass water, and the invention according to claim 7 is the above claim. In the basket of claim 5, the bottom plate is formed of a plate having water passage holes in the rear half or part thereof, and the invention according to claim 8 is the basket of claim 5, The side plate is formed of a plate having a water passage hole in the rear half.
[0016]
When the basket of claim 5 is attached to the inlet of the oil and fat interceptor, the same effects as those described for the oil and fat interceptor of claim 1 can be obtained. When the basket of No. 8 is attached to the inlet of the oil and fat interceptor, the same effect as described for the oil and fat interceptor according to the second, third, and fourth aspects can be obtained.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.
[0018]
FIG. 1 is a cross-sectional view of an oil and fat interceptor according to an embodiment of the present invention, FIG. 2 is a plan view of the oil and fat interceptor with a lid removed, and FIG. 3 is an illustration of the present invention attached to the oil and fat interceptor. FIG. 4 is a perspective view of the basket and FIG. 4 is an explanatory view of the operation of the oil interceptor.
[0019]
This oil and fat interceptor is constructed in the same manner as the conventional oil and fat interceptor shown in FIG. 7, except that the solid matter collecting basket is different.
[0020]
That is, the tip of the water guide pipe 2 serving as an inflow port is inserted into the side wall of the bucket-shaped interceptor body 1 formed of synthetic resin, and the water tightness is ensured by the seal packing 7a attached to the periphery of the insertion hole. Has been. On the other hand, on the opposite side of the interceptor body 1 (a position lower than the water guide pipe 2), the cylindrical portion 4a of the trap 4 serving as the outlet is inserted from the inside, and the seal packing attached to the periphery of the insertion hole Water tightness is ensured by 7b. A drain pipe 6 is connected to the cylindrical portion 4a serving as the outlet through a socket-type joint 5, and a lid 8 is detachably attached to the upper end opening of the interceptor body 1. Yes.
[0021]
The trap 4 has a flat cylindrical shape with an expanded width as shown in FIG. 2, and the lower end opening 4 b is formed from the stagnant water surface WL in order to prevent backflow of odor from the drain pipe 6. I'm immersed in the downward direction. A cap 4d is detachably attached to the inspection port 4c formed on the inclined front surface of the trap 4, and the inside of the trap 4 and the drain pipe 6 can be easily inspected and cleaned by removing the cap 4d. It is like that.
[0022]
In addition, the trap 4 simultaneously serves to separate a region that collects oils and fats on the inlet side and a region that does not contain oils and fats on the outlet side, so that the separation function can be more reliably exhibited. In addition, the lower end opening 4c is immersed deeply below the stagnant water surface WL.
[0023]
A solid matter collecting basket 30 is attached to the tip of the water conduit 2 serving as an inflow port. As shown in FIGS. 1 to 4, the basket 30 is made of a metal such as stainless steel that cannot pass water as a front plate 30 a and a bottom plate 30 b against which the miscellaneous waste water W (see FIG. 4) that flows in from the water conduit 2 strikes. While using non-perforated plates, metal perforated plates made of metal and having a large number of water-permeable holes 30f formed by punching as the left and right side plates 30c, 30d and rear plate 30e are welded. what der those assembled into a box shape by like, as shown in FIG. 2, the right and left side ends of the front plate 30a are not in contact without any gap to the sidewall of the interceptor body 1. Between the upper ends of the left and right side plates 30c, 30d of the basket 30, a handle 30g bent in an inverted U shape is attached, and a U-shaped recess 30h is formed on the upper portion of the rear plate 30e. Is formed.
[0024]
The basket 30 is configured such that the tip of the water guide pipe 2 is fitted into the U-shaped recess 30h, and the handle 30g is locked to the engaging protrusion 9a fixed to the top of the tip of the water guide pipe 2. By attaching the rear plate 30e to a stopper 9b fixed to the lower end of the water guide tube 2, the rear plate 30e is detachably attached to the water guide tube 2 serving as an inflow port. If the handle 30 is lifted and taken out to the outside, The solid matter accumulated in the basket 30 can be easily removed. The engaging projection 9a and the stopper 9b are integrally formed on the top and bottom of the ring 9, and are fixed by fitting the ring 9 to the tip of the water conduit 2.
[0025]
In the oil and fat interceptor in which the basket 30 having the above-described configuration is attached to the water conduit 2 at the inlet, solid matter (not shown) contained in the miscellaneous wastewater that has flowed in from the water conduit 2 is generated by the basket 30. It is collected and stored inside. Then, as shown in FIG. 4, the miscellaneous waste water W that has flowed in vigorously from the water conduit 2 hits a non-porous front plate 30 a that is not allowed to pass through the basket 30 while stirring and entraining the oils O floating on the water surface. After the reversal, the impeller is further impinged upon contact with the non-porous bottom plate 30b through which water cannot pass, and the momentum is greatly weakened to flow out from the rear plate 30e of the basket 30 and the large number of water-permeable holes 30f of the left and right side plates 30c, 30d. Then, a gentle water flow is formed through the lower end opening of the trap 4 and toward the outlet (trap cylinder 4a). Therefore, most of the fats and oils O contained in the miscellaneous wastewater and the fats and oils O involved in the inflow float on the surface of the water by the gentle water flow until they pass through the lower end opening of the trap 4 and are separated. As a result, the trapping efficiency of the fats and oils O is greatly improved.
[0026]
FIG. 5 is a cross-sectional view of an oil and fat interceptor according to another embodiment of the present invention, and FIG. 6 is a plan view of the oil and fat interceptor with the lid removed.
[0027]
In this oil and fat interceptor, the interceptor body 1 is formed in a bucket shape that is vertically longer than the above-described interceptor body 1, and the basket 30 attached to the short pipe 20 serving as an inflow port is also formed vertically. ing. The water guide pipe 2 is connected to the short pipe 20 serving as an inflow port via a socket-type joint 5.
[0028]
The basket 30 is the inlet (short pipe 20) only the front plate 30a of gray water hits forcefully flowing is formed in imperforate plates made of water-passing non metals from bottom plate 30b, left and right side plates 30c, 30d and the rear plate 30e are formed of perforated plates in which a large number of water-permeable holes 30f are formed by punching. And, this is the upper part of the rear face plate 30e of the basket 30 circular opening is formed, by engaging the locking projection 2a by inserting the tip of the short tube 20 to the opening, as have the basket 30 is Na fall out Are attached to the inlet (short pipe 20). Further, the basket 30 is formed so that the left and right side plates 30c and 30d are curved along the inner peripheral surface of the interceptor body 1, as shown in FIG. A handle 30g is attached between the upper ends of the left and right side plates 30c, 30d. As shown in FIG. 6, the left and right ends of the front plate 30 a of the basket 30 are not in contact with the side wall of the interceptor body 1 without a gap.
[0029]
Since the other structure of this oil and fat interceptor is substantially the same as that of the oil and fat interceptor described above, the same reference numerals are assigned to the same members, and description thereof is omitted.
[0030]
As in this embodiment, the bottom plate 30b of the basket 30 is not necessarily formed of a non-porous plate, and may be formed of a perforated plate that allows water to pass therethrough. Even if the bottom plate 30b is formed of a perforated plate in this way, if the front plate 30a is formed of a non-perforated plate, the momentum of the inflowing miscellaneous drainage can be sufficiently weakened, so that the oil and fat interception efficiency is improved. To do.
[0031]
Moreover, you may form the bottom face board 30b of the basket 30 with the board which has the water flow hole 30f in the latter half part or one part. If formed with such a plate, when the basket 30 is taken out from the interceptor body 1 and the solid matter in the basket 30 is removed, the water in the basket 30 is drained by the water holes 30f of the bottom plate 30b. In addition, it becomes possible to throw away only solid matter, and also reverses miscellaneous wastewater that flows in the front half of the bottom plate 30b where water passage holes are not formed to weaken the momentum and increase the oil and fat interception efficiency. You will also be able to.
[0032]
Further, the left and right side plates 30c, 30d of the basket 30 may be formed of plates having water passage holes 30f in the rear half thereof. When such a basket 30 is attached to the inflow port, miscellaneous wastewater that has flowed in from the inflow port hits the non-front surface plate 30a of the basket 30 and is reversed, and then water flow holes of the left and right side plates 30c and 30d are formed. The momentum is further weakened by hitting the front half that is not, and the water flows out from the water passage holes 30f formed in the rear half of the rear plate 30e of the basket 30 and the left and right side plates 30c, 30d to form a gentler water flow. As a result, the efficiency of interception is further improved.
[0033]
All of the oil and fat interceptors described above are formed of perforated plates such as the left and right side plates 30c and 30d, the rear plate 30e, and the bottom plate 30b of the basket 30 that need to be water-permeable. It is not necessary to form with a board, For example, you may form with what has water passage holes (mesh), such as a metal net.
[0034]
Next, the oil and fat interception experiment performed on the oil and fat interceptor of the present invention will be described.
[0035]
The oil-containing water obtained by adding 200 g of edible oil to 50 liters of water and stirring it was used as a vertically long oil and fat interceptor (height of the interceptor body 1: 400 mm, upper end opening diameter: 200 mm, porous capacity) : 6.7 liters, basket 30 height: 300 mm, non-porous plate is used only for the front plate of the basket 30), the oil contained in the water flowing out from the outlet through the inlet at a flow rate of 20 liters per minute Weighed and measured the interception efficiency three times. As a result, the interception efficiency was 89.5% in the first experiment, 88.6% in the second experiment, 85.8% in the third experiment, and the average value was excellent at 88.0%.
[0036]
For comparison, instead of the basket 30, the front plate, the rear plate, the left and right side plates, and the bottom plate are all attached with the same size basket, and the blocking efficiency is measured in the same manner as described above. This experiment was performed three times. As a result, the interception efficiency was 78.3% in the first experiment, 78.5% in the second experiment, 76.2% in the third experiment, and the average value was 77.7%.
[0037]
From this experimental result, it can be seen that the oil and fat interceptor with the basket of the present invention improves the oil and fat interception efficiency by 10% or more.
[0038]
【The invention's effect】
As is clear from the above description, the oil and fat interceptor of the present invention in which the basket of the present invention is attached to the inlet has a remarkable effect that the oil and fat interception efficiency is greatly improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an oil and fat interceptor according to an embodiment of the present invention.
FIG. 2 is a plan view of the oil and fat interceptor with the lid removed.
FIG. 3 is a perspective view of the basket of the present invention attached to the oil and fat interceptor.
FIG. 4 is an operation explanatory view of the oil interceptor.
FIG. 5 is a cross-sectional view of an oil and fat interceptor according to another embodiment of the present invention.
FIG. 6 is a plan view of the oil and fat interceptor with the lid removed.
FIG. 7 is an operation explanatory diagram of a conventional oil and fat interceptor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Interceptor main body 2 Water guide pipe 20 used as an inflow port Short tube 30 used as an inflow port Basket 30a Basket front plate 30b Basket bottom plate 30c, 30d Basket left and right side plates 30f Basket water hole 4 Trap 4a Outlet Trap trap cylinder W Inflowing waste water

Claims (8)

In passing water freely solid fats interceptor vessel basket is mounted for collecting the inlet, the gray water is vigorously per Ri and the left and right side ends flowing from the inlet gap to the side wall of the interceptor body without the front plate of the basket not in contact with the oils and fats interceptor device, characterized in that it is formed by passing water non imperforate plate.   The oil and fat interceptor according to claim 1, wherein the bottom plate of the basket is also formed of a non-perforated plate that cannot pass water.   2. The oil and fat interceptor according to claim 1, wherein the bottom plate of the basket is formed of a plate having a water passage hole in the latter half or a part thereof.   The oil and fat interceptor according to claim 1, wherein the left and right side plates of the basket are formed of plates having water passage holes in the rear half thereof. A water-permeable basket for collecting solid matter attached to the inlet of an oil / fouling interceptor, whose left and right side edges do not contact the side wall of the interceptor body without any gaps, and the front, left and right side plates, and rear plate basket and has a bottom surface plate, characterized in that the front plate gray water hits vigorously flowing from the inlet is formed by the water flow non imperforate plate.   The basket according to claim 5, wherein the bottom plate is also formed of a non-perforated plate that cannot pass water.   6. The basket according to claim 5, wherein the bottom plate is formed of a plate having a water passage hole in the latter half or a part thereof.   The basket according to claim 5, wherein the left and right side plates are formed of plates having water passage holes in the rear half thereof.

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