JP7257838B2 - Oil filter reduction device - Google Patents

Description

The present invention has legs for supporting an oil tank in which oil for cooking an object to be heated is stored against the floor surface, and the filtration reduction unit can be accommodated between the legs below the oil tank. The present invention relates to an oil filtration and reduction device used in a fryer having a large storage space.

Conventionally, as an oil filtration and reduction device, a self-weight type filtration and reduction device in which a filtration unit and a reduction unit are provided in a filtration tank separately from a fryer that heats an oil tank that stores oil for adjusting an object to be heated is known. (cannot be disclosed due to lack of published literature).
When using the filtration reduction device, a primary storage tank for storing the used oil discharged from the fryer is installed below the fryer, the primary storage tank is moved above the filtration tank of the filtration reduction device, and the primary After the used oil stored in the storage tank is flowed into the filtration tank and filtered and reduced by the filtration unit and the reduction unit, the filtered reduced oil is transferred from the filtration tank to the secondary storage tank installed below. and move the secondary storage tank above the oil sump of the fryer to return the filtered reduced oil to the oil sump.
In addition, as a filtration device for filtering used oil in a filtration tank below the fryer, an oil flow path connecting the filtration tank and the oil tank of the fryer is provided, and the oil flow path is used to filter from the filtration tank to the oil tank. A pump equipped with a pressure-feeding pump for pressure-feeding oil is known (see Patent Literature 1).

JP 2013-180224 A

According to the conventional filtration reduction apparatus described above, since it is installed separately from the fryer, a large amount of installation space is required, and when executing the filtration reduction process once, the temporary storage tank is replaced with the filtration tank of the filtration reduction apparatus. In addition to moving the secondary storage tank above the oil tank of the fryer, there was a problem that there were many work steps for the operator.
On the other hand, in the filtering device disclosed in Patent Document 1, there is a problem that the configuration is relatively complicated because it is necessary to provide a pressure-feeding pump and an oil passage. installation space was required. In addition, the initial cost, power cost, and maintenance cost of the compressing pump are high, so there is room for improvement from the economic point of view.

The present invention has been made in view of the above-mentioned problems, and its object is to simplify the work process associated with filtration and reduction while maintaining an economically rational structure with a simple structure. To provide a reducing device.

The oil filtration and reduction device for achieving the above purpose is
An oil filtering and reducing device for use in a fryer having an oil tank in which oil for cooking an object to be heated is stored, characterized by:
a filtration unit for filtering impurities from the oil used in the oil bath;
a reduction unit that reduces the oil used in the oil tank;
a filtering and reducing unit that receives the oil used in the oil tank and has a filtering tank in which the reducing section can be arranged in contact with the received oil;
The filtration reduction unit is configured to be freely disposed at an oil reflux position above the oil tank and at which the filtered reduced oil after filtration reduction is returned to the oil tank,
The oil tank of the fryer has a pair of walls facing each other,
A positioning portion for positioning and fixing the filtration reduction unit at the oil reflux position with respect to the oil tank is provided below the filtration tank,
The positioning portion is a pair of flanges that is a grounding portion that grounds the upper end of one side wall portion on one side of the pair of wall portions and extends along the inner surface and the outer surface of the one side wall portion,
In addition, it is a planar portion that can be grounded on the upper end of the other side wall portion on the other side of the pair of wall portions and extends in the horizontal direction .

According to the above characteristic configuration, by arranging the filtration reduction unit having the filtration part, the reduction part, and the filtration tank at the oil return position above the oil tank of the fryer, for example, the used oil from the oil tank can be Filtration reduction can be performed by storing the used oil in a primary storage container and flowing the used oil from the primary storage container to the filtration reduction unit. Further, for example, after filtration reduction, the filtered reduced oil after filtration reduction can be returned to the oil tank by opening the discharge port at the lower end of the filtration tank.
That is, it is possible to reduce the transportation of relatively heavy used oil to one time, and the oil filtration reduction can simplify the work process associated with filtration reduction while maintaining an economically rational structure with a simple structure. device can be realized.

According to the above characteristic configuration, since the positioning portion positions the filter tank with respect to the oil tank at the oil recirculation position, the filtered reduction unit is positioned with respect to the oil tank in a state in which the filtered and reduced oil can be appropriately returned to the oil tank. can.
Further, the positioning portion is a grounding portion that is grounded on the upper end of one side wall portion on one side of the pair of wall portions, and is a pair of flange portions extending along the inner surface and the outer surface of the one side wall portion, and a pair of Since the upper portion of the other side wall portion on the other side of the wall portion is a flat portion extending in the horizontal direction, even if the distance between the pair of wall portions is changed, the flat surface extending in the horizontal direction A filter-reduction unit can be mounted on the upper end of the wall of the oil tank in such a way that the part rests on the upper end of the other side wall.
As a result, it is possible to realize an oil filtering and reducing apparatus that can be used while being properly positioned for various types of fryers having oil tanks of different sizes with different gaps (frontages) between the pair of walls.

A further characteristic configuration of the oil filtration and reduction device is:
The fryer has legs for supporting the oil tank on the floor surface, and has a storage space between the legs below the oil tank,
The filtering and reducing unit is configured to be integrally movable from an oil receiving position, which is located in the storage space and receives the oil discharged from the oil tank below the oil tank, to the oil recirculating position. .

According to the above characteristic configuration, even if the oil temperature is relatively high after using the fryer, for example, by simply operating the valve at the outlet of the oil tank of the fryer from the closed state to the open state, the high temperature Since the oil can be discharged to the filtration tank without being manually transported, filtration and reduction can be performed safely. Moreover, according to this configuration, it is possible to shorten the filtration reduction time without requiring a long waiting time until the oil is completely cooled before the filtration reduction is started.

A further characteristic configuration of the oil filtration and reduction device is:
The filtering and reducing unit has casters that are in contact with the floor surface and is configured to be mountable on a carriage that is movable along the floor surface,
It is configured to be movable between the oil receiving position inside the storage space and the outside of the storage space while being placed on the carriage.

According to the above-described characteristic configuration, the filtration/reduction unit can be easily moved between the oil receiving position located in the storage space and the outside of the storage space via the carriage, thereby improving the operability.

A further characteristic configuration of the oil filtration and reduction device is:
The return unit is composed of a return pack in which a reducing agent for reducing the oil is enclosed in a bag-like nonwoven fabric, and a pressing member that presses the return pack from above inside the filter tank. It is in.

Conventionally, the reduction treatment has been carried out by spraying a powdered reducing agent on the filter tank, but this method has a problem that the powdered reducing agent scatters in the air.
According to the above characteristic structure, the reducing agent is supplied as a reducing pack in which the reducing agent for reducing the oil is sealed inside the bag-like nonwoven fabric, so that the reducing agent can be prevented from scattering in the air.
Furthermore, when such a return pack is used, it is conceivable that water vapor in the return pack may evaporate due to the heat of the oil and float up from the oil in the filtration tank. By adopting the configuration of pressing from above, the reduction pack can be appropriately retained inside the oil in the filtration tank, and the reduction treatment can be reliably performed.

1 is a schematic configuration diagram of an oil filtration and reduction device according to an embodiment; FIG. FIG. 10 is a diagram of operation when oil is discharged from the oil tank of the fryer to the filter tank of the oil filtration and reduction device when the filtration reduction unit is arranged at the oil receiving position. FIG. 10 is a diagram showing the operation of recirculating filtered and reduced oil from the filter tank of the oil filtration and reduction device to the oil tank of the fryer when the filtration reduction unit is arranged at the oil reflux position.

The oil filtration/reduction device 100 according to the embodiment of the present invention relates to a device capable of simplifying the work process involved in filtration/reduction while maintaining an economically rational structure with a simple structure.
The oil filtration and reduction device 100 will be described below with reference to FIGS. 1 to 3. FIG.

The oil filtration and reduction apparatus 100 according to this embodiment has a leg portion 65 for supporting an oil tank 62 in which oil O for cooking an object to be heated is stored against the floor surface, and the leg portion 65 is provided below the oil tank 62 . It is used for a fryer 60 having a storage space 67 between.
To explain the fryer 60, as shown in FIGS. A heater (not shown) configured to heat the oil O inside is provided.
The oil tank 62 is provided with a discharge channel 63 for discharging the oil O inside the oil tank 62 from the bottom to the side of the storage space 67 below the oil tank 62, and an opening/closing valve (not shown) for opening and closing the discharge channel 63. ) is provided. Further, the opening and closing of the opening and closing valve is configured to be operable from the outside by the opening and closing operation section 64 .

Now, the used oil O after being used for cooking fried food or the like in the oil tank 62 contains impurities such as frying dregs generated when the object to be heated is heated in the oil tank 62, and is continuously oxidized. difficult to use. Therefore, the oil filtration and reduction device 100 according to this embodiment has the following configuration.

As shown in FIGS. 1 and 2, the oil filtration and reduction device 100 includes a filtration unit 20 for filtering impurities from the oil O discharged downward from the oil tank 62 of the fryer 60 through the discharge channel 63, and Filtration having a reducing part 33 for reducing the discharged oil O, and a filtering tank 30 receiving the oil O discharged downward from the oil tank 62 and capable of disposing the reducing part 33 in a state of being in contact with the received oil O. It has a reduction unit FRU.

In the filtration space 32 of the filtration tank 30, as shown in FIG. In addition to the main filtration space 32a located above the oil tank 62 in the state of being positioned at the oil return position, it is composed of a sub-filtration space 32b extending to a region that is not overlapped with the oil tank 62 in plan view. .
The sub-filtration space 32b is provided to increase the filtration capacity of the oil O filtered at one time. Oil O flows from the secondary filtration space 32b into the main filtration space 32a. Furthermore, the bottom of the filtration tank 30 forming the main filtration space 32a is provided with a discharge port 36 for discharging the filtered reduced oil O downward, and the discharge port 36 can be opened and closed by an open/close valve (not shown). At the same time, the opening/closing bubble is configured to be opened/closed by an opening/closing operation section (not shown).

Further, the main filtration space 32a is provided with a metal net 35 placed on its bottom, and above the metal net 35, a reducing material for reducing the oil O is placed in a bag-like nonwoven fabric. A return pack 33c sealed inside is placed, and a pressing member 33b is provided to press the return pack 33c from above in order to prevent the return pack 33c from floating in the oil O. As shown in FIG. The pressing member 33b is provided with a pair of gripping portions 33a extending upward from both ends thereof. The pressing member 33b is placed. The return pack 33c and the pressing member 33b function as the return portion 33. As shown in FIG.
Incidentally, a silica-magnesia-based adsorption/refining agent is sealed inside the nonwoven fabric of the return pack 33c.

The filtering part 20 can be composed of a wire mesh 22 which is open at the top and formed into a square shape with a bottom. is set.
A pair of flange portions 21 are provided in the upper end edge of the filtration portion 20 in a form extending sideways, and the pair of flange portions 21 are formed at the upper end of the main filtration space 32 a of the filtration tank 30 . It is configured to be engageable with the engaging upper end portion 31a. The filtering portion 20 is positioned inside the main filtering space 32a with the pair of flange portions 21 engaging with the pair of engaging upper ends 31a.

Above the filtration tank 30, a lid portion 11 is provided that can be closed so as to isolate the filtration space 32 from the outside while the return portion 33 and the filtration portion 20 are installed in the filtration space 32. The portion 11 is provided with a grip portion 12 extending upward from the top surface thereof. A worker opens and closes the filtration space 32 of the filtration tank 30 by the lid portion 11 by gripping the grip portion 12 installed on the top surface of the lid portion 11 and moving the lid portion 11 .
The filtration tank 30 is provided with a pair of grips 31b extending upward from the upper end thereof. It is grippable.

The filtration reduction unit FRU described so far is configured to be mountable on the carriage 40 in a state in which the filtration section 20 and the return section 33 are arranged inside the filtration space 32 of the filtration tank 30. .
The carriage 40 has casters 42 that are in contact with the floor surface and is configured to be movable along the floor surface. It is configured to be movable between the oil receiving position inside the storage space 67 shown and the outside of the storage space 67 .
Incidentally, when the filtered reduction unit FRU is positioned at the oil receiving position, the lid portion 11 is removed to receive the filtered reduced oil O from the oil tank 62 of the fryer 60 .
Further, when the filtration reduction unit FRU is positioned at the oil receiving position, as shown in FIG. The sub-filtration space 32b is located in the middle of the drawing, and the main filtration space 32a is located in the front side of the drawing (the tip of the arrow Y2 in FIG. 2).
1 corresponds to Y2 in FIG. 2, and Y1 in FIG. 1 corresponds to X2 in FIG. 2, and is positioned at the oil receiving position.

The filter reduction unit FRU receives the oil O at the oil receiving position (the position shown in FIG. 2), waits for a predetermined time for filtration and reduction, and then returns to the fryer as shown in FIG. 60 is disposed at an oil return position above the oil tank 62 , and the filtered reduced oil O is returned from the discharge port 36 to the oil tank 62 .
1 corresponds to X2 in FIG. 3, and Y1 in FIG. 1 corresponds to Y2 in FIG. do. That is, at the oil return position shown in FIG. 3, the direction along the frontage of the fryer 60 is the same as the direction in which the main filtration space 32a and the sub-filtration space 32b of the filtration reduction unit FRU are connected.

Now, as shown in FIG. 3, the oil tank 62 of the fryer 60 has a pair of walls 69 facing each other.
Below the filtration tank 30 , a positioning portion is provided for positioning and fixing the filtration reduction unit FRU, which is in the oil reflux position, with respect to the oil tank 62 .
The positioning portion is a grounding portion 38d that contacts the upper end of one side wall portion 69b on one side of the pair of wall portions 69, and a pair of flange portions 38e and 38f that extend along the inner and outer surfaces of the one side wall portion 69b. There is a planar portion 38c that can be grounded on the upper end of the other side wall portion 69a on the other side of the pair of wall portions 69 and extends in the horizontal direction.
By adopting this configuration, it is possible to realize a filtration reduction unit FRU that can be commonly used for fryers 60 having frontages of various widths.

[Another embodiment]
(1) In the above-described embodiment, a configuration example in which the filtration unit 20 and the return unit 33 are arranged in this order from the upper side in the vertical direction is shown. I do not care.

(2) In the above embodiment, the object of the present invention can be achieved without providing the lid portion 11 and the carriage 40 .

(3) In the above embodiment, the filter reduction unit FRU is integrally movable between the oil receiving position below the oil tank 62 and the oil return position above the oil tank 62 .
As another example of use, the filtration reduction unit FRU is previously arranged at the oil return position above the oil tank 62, and the used oil O from the oil tank 62 is stored in another temporary storage container. A method of flowing the used oil O from the container into the filtration tank 30 of the filtration reduction unit FRU may be used.
That is, the filtration reduction unit FRU includes a filtration section 20 for filtering out impurities from the oil O used in the oil tank 62 of the fryer 60, a reduction section 33 for reducing the oil O used in the oil tank 62, and A configuration having a filter tank 30 that receives the used oil O and in which the reducing unit 33 can be disposed in a state of being in contact with the received oil O may be employed.

It should be noted that the configurations disclosed in the above embodiments (including other embodiments, the same shall apply hereinafter) can be applied in combination with configurations disclosed in other embodiments as long as there is no contradiction. The embodiments disclosed in this specification are exemplifications, and the embodiments of the present invention are not limited thereto, and can be modified as appropriate without departing from the object of the present invention.

INDUSTRIAL APPLICABILITY The oil filtration and reduction apparatus of the present invention can be effectively used as an oil filtration and reduction apparatus capable of simplifying the work process associated with filtration and reduction while maintaining a simple and economically rational construction.

Reference numeral 12 : Grip portion 20 : Filtration portion 30 : Filter tank 31 a : Engagement upper end portion 33 : Return portion 33 b : Pressing member 33 c : Return pack 38 c : Flat portion 38 d : Ground portion 38 e : Flange portion 38 f : Flange portion 40 : Carriage 42 : Caster 60 : Fryer 62 : Oil tank 63 : Discharge channel 65 : Leg 67 : Storage space 69 : Wall 69a : Other side wall 69b : One side wall 100 : Oil filter reduction unit FRU : Filter reduction unit O : Oil O : Filtered reduced oil

Claims (4)

An oil filtration and reduction device used in a fryer having an oil tank in which oil for cooking an object to be heated is stored,
a filtration unit for filtering impurities from the oil used in the oil bath;
a reduction unit that reduces the oil used in the oil tank;
a filtration and reduction unit that receives the oil used in the oil tank and has a filtration tank in which the reducing unit can be arranged in contact with the received oil;
The filtration reduction unit is configured to be freely disposed at an oil reflux position above the oil tank and at which the filtered reduced oil after filtration reduction is returned to the oil tank,
The oil tank of the fryer has a pair of walls facing each other,
A positioning portion for positioning and fixing the filtration reduction unit at the oil reflux position with respect to the oil tank is provided below the filtration tank,
The positioning portion is a grounding portion that is grounded on the upper end of one side wall portion on one side of the pair of wall portions and is a pair of flange portions that extend along the inner surface and the outer surface of the one side wall portion,
and an oil filtering and returning device that is a flat portion that can be grounded on the upper end of the other side wall portion on the other side of the pair of wall portions and extends in the horizontal direction. The fryer has legs for supporting the oil tank on the floor surface, and has a storage space between the legs below the oil tank,
2. The filtration reduction unit is configured to be integrally movable from an oil receiving position in the storage space for receiving oil discharged from the oil tank below the oil tank to the oil return position . 3. The oil filtration and reduction device according to . The filtering and reducing unit has casters that are in contact with the floor surface and is configured to be mountable on a carriage that is movable along the floor surface,
3. The oil filtering and returning device according to claim 2 , wherein the oil filtering and returning device is configured to be movable between the oil receiving position inside the storage space and the outside of the storage space while being mounted on the carriage. The reducing unit is composed of a reducing pack containing a reducing agent for reducing the oil in a bag-like nonwoven fabric, and a pressing member that presses the reducing pack from above inside the filtering tank. Item 4. The oil filtration and reduction device according to any one of Items 1 to 3 .

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