JP2001062446A - Device for removing oil and fat components - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove oil and fat components mixed with leftover food discharged from a shop such as a Chinese restaurant or a Chinese noodle shop using a large amount of animal and vegetable oil for cooking and flowing into a sink of a kitchen, before they enter a grease trap (collector), and to prevent contamination of the grease trap (collector). SOLUTION: The sink 9 at least exclusively for oils and fats, an oil and fat separation tank 11 with temperature, controlled and an oil and fact separator for drawing up oil and fat components collected on the upper part of the oil and fact separation tank 11 inside by using an oil skimmer 10 and stripping the oil and fat components from the oil skimmer 10 with a stripping plate 19, are interposed between a washing tank (the sink) in the kitchen and the grease trap (the collector).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grease trap (an interceptor) for mixing grease remaining in foods used in cooking, such as a Chinese restaurant or a ramen shop, and flowing into a washing tank of a kitchen. ) Remove before putting in
The present invention relates to an invention that prevents a grease strap (interceptor) from being contaminated, and particularly to an invention that prevents the oil and fat from becoming low temperature and solidifying in the middle of the apparatus when collecting separated oil and fat. It is concerned.

[0002]

2. Description of the Related Art A grease strap is provided in a drainage route of a store that uses a large amount of animal and vegetable oils for cooking, for example, a Chinese restaurant or a ramen restaurant, so that oils and fats that are mixed with the residual rice do not flow into the sewer. Referring to FIG. 10, reference numeral 30 denotes a washing tank (sink) installed in a kitchen. 31 is a grease strap, this grease strap 3
Numeral 1 is connected to the washing tank 30 by a pipe 32. or,
The grease strap 31 has a lid 33 buried in the soil outside the kitchen (outside the building), and a drain 34 drains water in the grease strap 31 into a sewer or a septic tank (not shown).
It is a pipe for flowing to the like. This pipe 34 is connected to the bottom of the grease strap 31, as is apparent from the figure. The pipe 32 is connected to the upper part of the grease strap 31. As shown in the figure, the fats and oils to be put into the washing tank (sink) 30 of a Chinese restaurant or a ramen shop having the grease strap 31 include liquid residue, soup, dishwashing detergent and the like. Since all wastewater such as oils and fats pass through the grease trap, they are separated into oils and fats and water in the grease strap 31, and only water is drained to the sewer. If you wash or use a large amount of detergent, if the existing grease strap 31 only grease removal device,
The following problems are likely to occur. For example, pipe 32, pipe 3
The oils and fats adhere to the inner wall of 4, and the oils and fats are not easily separated by the grease strap, which is liable to be clogged by the oils.
Pollution of rivers. Alternatively, unless the grease trapped in the upper part of the grease strap is opened and removed periodically with human power, the odor goes out and deteriorates the surrounding environment. Further, there is another problem that even if an attempt is made to periodically remove the oils and fats, a large amount of water is taken, and it is difficult to treat the collected oils and fats. Among these problems, there is a proposal to automate the work of periodically opening the lid of the grease collected on the upper part of the grease strap and manually removing the grease with human power. Hereinafter, this proposal will be described with reference to FIG. 11. Reference numeral 35 denotes a washing tank (sink) installed in a kitchen.
The liquid waste and soup-containing water described in the above section are washed away. Three
6 is a grease strap (interceptor). The grease strap 36 has a separation tank 37. The grease strap 36 is buried in the soil outside the kitchen as shown in the figure. Thus, the fats and oils that flow into the washing tank 35 together with the water (for washing) enter the separation tank 37 from the inlet 39 of the grease strap 36 via the conduit 38. The oil or fat containing water is first separated by a filter 40 into a solid and a liquid. Thereafter, in the separation tank 37, water and oil are separated, and the oil and fat are stored above the separation tank 37, and the water is stored below.
The water accumulated below is drained from the drain 41 to the sewer. At this time, the proposed grease trap 36 is placed in the separation tank 3.
The oil and fat floating above 7 is pumped up using pump 42 instead of human power. The fats and oils pumped by the pump 42 are collected in a fat and oil recovery unit 43. In addition, as an example of the grease removal system or apparatus including the grease traps 31 and 36 shown in FIGS. 10 and 11 described above, JP-A-9-235776,
There is a gazette such as Japanese Patent Application Laid-Open No. 7-284767.

[0003]

Any of the conventional proposals have been known to allow oil or fat to flow into the grease trap, so that they have been used for a long time, have a large amount of water flow, or have a detergent. If the grease strap is used in large quantities, it will not be able to fulfill the mission of the grease trap, and it will not only pollute the surrounding environment due to dirt and smell, but also the sewer pipe (if it is not a sewer, it may be a septic tank or river). There was a problem of contamination. In the conventional method, it was not considered at all to recycle fats and oils for recycling. In addition, no specific means has been proposed for obtaining high-purity oil simply by recycling the oil. or,
Relying solely on grease traps as a means of removing oils and fats was insufficient in purifying water drained to sewers. Furthermore, in winter when the ambient temperature fluctuates, there is a problem that the viscosity of the fat or oil extremely decreases and the fat or oil is solidified, so that automatic recovery by a pump or the like cannot be performed. ,

[0004]

The present invention has been made to solve the above-mentioned problems. That is, it is composed of an oil skimmer for pumping oil and fat collected on the upper surface of the separation tank by a driven belt, an oil tank for storing oil and fat captured by the oil skimmer, and the like, and has a peeling plate between the oil tank and the oil skimmer. Then, the oil and fat separated from the oil skimmer is guided to the oil tank via the release plate, and the release plate is heated to a temperature equal to or higher than the solidification temperature of the oil and fat. As in the past, a large amount of oil does not flow in, so that the grease strap can always perform its function.Of course, while the oil and fat separated from the oil skimmer using the release plate flows on the release plate. It is possible to prevent the temperature from dropping due to the influence of the ambient temperature and solidifying and adhering to the peeling plate itself. This can easily occur, for example, immediately before the end of the operation of the fat and oil removing device, that is, the stagnation of the fat and oil attached when the flow of the fat and oil has almost disappeared. It can completely prevent oil and fat on the peeling plate and can surely guide it to the next step. The grease remaining on the peeling plate due to surface tension and the like is also liquefied when the grease removing device is operated next time, and is flowed to the next process, so that the grease accumulates on the peeling plate and hinders the next flow. There is nothing to say.

[0005] Further, a heat conductive plate, one end of which is immersed in a separation tank where the temperature inside the tank is always heated to a temperature equal to or higher than the oil solidification temperature, is closely attached to a release plate, and the release plate is heated to a temperature within the separation tank. Since the temperature is set to be equal to or higher than the solidification temperature of fats and oils, the above effect can be achieved without using a special heater or the like, so that it is very advantageous in energy saving.

Further, since the peeling plate is heated by an electric heater or the like to a temperature higher than the solidification temperature of fats and oils, the above effects can be obtained by simple means. In addition, the release plate that guides the oil and fat captured by the oil skimmer to the oil tank and the auxiliary tank are heated above the solidification temperature of the oil and fat. It solidifies under the influence of the ambient temperature and does not hinder the subsequent flow.

Further, the oil and fat pumped up from the separation tank by an oil skimmer or the like is taken into a temperature-controlled auxiliary tank, where it is separated into at least oil, impurities and water layers, and only oil is transferred to the oil tank side. It is made to flow, so that high-purity, recyclable oil can be obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 is a longitudinal sectional view of the grease removing device provided with the present invention, and is a sectional view corresponding to the AA section of FIG.
FIG. 2 is an explanatory perspective view of the appearance of the grease removing device in FIG. 3, and FIG.
FIG. 4 is a diagram illustrating an oil / fat removing system including the oil / fat removing device of the present invention, FIG. 4 is an enlarged explanatory view of a heat conductive plate in FIG. 1, and FIGS. FIG. 7 is a diagram showing a positional relationship between a cleaning tank dedicated to fats and oils and a second separation tank,
FIG. 8 is a view showing a state in which an auxiliary separator is attached to a treatment tank of the oil and fat removing device of the present invention, and FIG. 9 is a view for explaining oil and fat recovery in the auxiliary separator and the oil absorbing mat. First, referring to FIG. 3, an oil / fat removal system provided with the present invention (entire configuration)
In the description, 1 is a washing tank (sink) dedicated to fats and oils installed in a kitchen, and in this washing tank (sink) 1, liquid residual rice such as ramen soup, ordinary soup, sauce and dressing is poured. Of course, this washing tank (sink) for oil and fat 1
Although not shown in the figure, a snowboard (filter) is provided to prevent the solid matter from flowing downstream. Reference numeral 2 denotes an oil / fat removing apparatus, into which the liquid residue left in the washing tank (sink) 1 dedicated to the oil / fat flows via a pipe (a duct 15 described later). In addition to the liquid residue, the wastewater containing grease from the dishes and cooking utensils flows into the grease removing device 2 via the duct 15 through the grease-only washing tank, and 5 denotes washing in the kitchen. A tank (sink), this washing tank 5 has tableware, soaking water for cooking utensils,
Drainage not containing fats and oils, such as drainage of a dishwasher and washing water for vegetables, is supplied and sent to a grease trap (so-called collector) 7 via a pipe 6. The grease strap 7 is generally employed. The grease strap 7 is used to flow the sediment other than the fat and oil into the sewer 8 and store the fat and oil in the grease strap 7. The drainage from which most of the oil and fat has been removed by the oil and fat removal device 2 described above is introduced through the pipe 6 in the middle of the pipe 6, in other words, after the washing tank 5 and before the grease trap 7. In addition, the grease removing device 2 and the cleaning tank 1 dedicated to the grease are integrally formed, and are usually provided together with the cleaning tank 5 in the kitchen in a normal state. In this way, the people working in the Chinese restaurant usually select the liquid residue containing oil and fat in the washing tank 1 dedicated to oil and fat and the wastewater without oil and fat in the washing tank 5 as normal work. It can be drained.
As described above, the liquid residue containing oils and fats is drained to the sewer via the oil and fat removing device 2 and the existing grease trap or the like. As a result, the sewage system is not contaminated as in the prior art, and the frequency of cleaning the grease strap itself can be greatly reduced.

Next, the overall structure of the grease removing device 2 provided in the present invention will be described with reference to FIG. 2. The grease removing device 2 is preferably installed in a kitchen, but particularly outside the kitchen (outside the building). However, there is no problem. The height of the grease removing device 2 is the same as the height of the washing tank in the kitchen (800 to 1000).
Mm). Reference numeral 9 denotes a cleaning tank dedicated to fats and oils, and the cleaning tank 9 dedicated to fats and oils is used for cleaning liquid residue, dishes and dishes. In other words, it is a washing tank (equivalent to a sink) dedicated to fats and oils. Reference numeral 10 denotes an oil skimmer which causes the oils and fats to adhere (adsorb by hydrophobic interaction) to a metal belt that drives oils and fats stored in a separation tank 11 described later, and is pumped from the separation tank 11. Numeral 12 denotes an oil tank where the oil and fat pumped up by the oil skimmer 10 is temporarily stored. The oils and fats stored in the oil tank 12 are high-purity oils that do not contain water, and therefore sufficiently endure recycling. Reference numeral 11 denotes a separation tank, which will be described in detail below with reference to FIGS. Reference numeral 9 denotes a cleaning tank dedicated to fats and oils. As described above, the cleaning tank 9 is used for charging liquid waste and the like, as well as tableware 13 contaminated with fats and oils, and washed there. As shown in FIG. 7, the supplied liquid waste or the water containing the washed fats and oils is supplied to a duct 15 provided on an outer wall surface 14a of a second separation tank 14 formed by partitioning the separation tank 11, as shown in FIG. Outlet 16 via
The second separation tank 14, which is taken into the second separation tank 14, is independent of the separation tank 11, as shown in FIG. 7, and is detachably incorporated in the separation tank 11. It is. In addition, the cleaning tank 9 dedicated to fats and oils is also of a detachable built-in type.

Returning to FIG. 1, the water containing fats and oils that has entered the second separation tank 14 from the discharge port 16 is moved upward by the action of the guide plate 22, and the fats and oils of the liquid residue are moved upwards. Lead to. Reference numeral 10 denotes an oil skimmer, which is one of the means for removing oils and fats by an adsorption action.
0 is driven by the drive motor 17. For example, the thin stainless steel belt 18 is rotated as shown in the figure, and the fats and oils are pumped to the upper portion by utilizing an adsorption action such as hydrophobic interaction with the belt. Accordingly, the lower end of the belt 18 is immersed above the second separation tank 14 in which the oils and fats accumulate. The oils and fats pumped by the belts 18 are separated from the belts 18 by the peeling plate 19 and pass through the auxiliary tank 20. , An oil tank 12 (recovery tank).
The peeling plate 19a is provided so that the oil and fat adhering to the belt 18 is peeled before reaching the drive motor 17 part. The function of the auxiliary tank 20 is to supply only oil and fat to the oil tank 12 and to return impurities including water and the like to the separation tank 14. That is, this auxiliary tank 2
The double tube separation device 20a is incorporated in the unit 0 as shown in the figure, and impurities such as water accumulated in the lower part are returned to the separation tank 14 as shown by arrows. In addition, an adsorption mat (not shown) can be used in place of the oil skimmer as a means for removing the oil and fat by the adsorption action. 21 is the second
This is a heater for heating the inside of the separation tank 14 to prevent solidification (low viscosity) of the fats and oils in the second separation tank 14. It is well known that, unlike mineral oils and the like, animal and vegetable oils have low viscosity at low temperatures. One of the features of the oil and fat removing apparatus of the present invention is that a heating means is provided to absorb or pump oil or fat from a separation tank using an oil absorbing mat (not shown) or an oil skimmer 10 even when the ambient temperature fluctuates. It is one that can be fried. In order to perform efficient adsorption, etc., the temperature in the separation tank 14 is set to 50 ° C.
It is better to maintain above. From the viewpoint of temperature control, it is advantageous to separate the second separation tank 14 from the separation tank 11 and reduce the volume in consideration of power saving and the like. or,
The heater 21 naturally has a temperature control section 21a, and always controls the temperature of the second separation tank 14 in an optimum state.
The heater 21 has a large weight 21b as shown in FIG. The role of the weight 21b is to prevent the temperature inside the separation tank 14 from locally increasing, and to uniformly increase the water temperature of the entire separation tank 14. Therefore, it is made of a good heat conductor having appropriate heat radiation and weight. Therefore, even if the ambient temperature becomes the low viscosity or the solidification temperature of animal and vegetable oils, such as in winter, the oil does not become low in viscosity or solidify in the tank.
This is also true when the present fat and oil removing device 2 is placed outside a building.

Reference numeral 23 denotes a double-tube auxiliary separator provided on the separation tank 11 side. As shown in FIGS. 8 and 9, the auxiliary separator 23 projects from the bottom of the separator 11, the outer pipe 23a protrudes above the grease surface 24a, and the inner pipe 23b is set to be equal to the drainage surface 24b. I have. As shown in FIG. 9, a water intake port 25 is provided in the outer pipe 23a below the drain surface 24b. Water is taken in from the upper end of the inner tube 23b. 26 is an oil absorbing mat,
The oil-absorbing mat 26 finally disposes oil and fat that has not reached the separation tank 14 and reaches the auxiliary separator 23. When the oil supply mat 26 is not used, if the oils and fats in this portion are periodically removed manually, the device can be efficiently used for a long period of time. Returning to FIG. 1, reference numeral 27 denotes a pipe for guiding the water separated by the auxiliary separator 23 to the green strap (so-called collector) described with reference to FIG. As described above, the drainage of the grease removing device 2 is not directly drained to the sewer but the existing grease truck 7 is used.
(Refer to FIG. 3). Reference numeral 28 denotes a cleaning drain cap provided at the bottom of the separation tank 11. When cleaning the inside of the tank, the cleaning drain cap 28 is removed, and all the water in the separation tank 11 is discharged out of the tank. Cleaning tank 9 for oils and fats, oil skimmer 1
0, the oil tank 12, the second separation tank 14, the heater 21 and the like are sequentially removed and washed.
As shown in FIG. 1, a heat conducting plate 19b is attached to the peeling plate 19, and this heat conducting plate 19b
As is clear from FIG. 2, one end is attached so as to cover the entire back side of the peeling plate 19, and the other end is immersed in the separation tank 14. In other words, the separation plate 14 heated by about 50 ° C. or more receives
Is heated, and the fats and oils flowing on the peeling plate 19
This is to prevent solidification above. (It is noted that the fats and oils are likely to solidify not only when the outside temperature is falling as in winter, but also immediately before the operation of the present fat and oil separation and removal apparatus. It is time to adhere to the plate 19. To prevent this, the release plate 19 is heated by the heat conductive plate 19b, but the heat conductive plate 19 is made of a copper or aluminum material having good heat conductivity. The reason for covering the entire peeling plate 19 is that since the peeling plate 19 is made of a material having poor heat conductivity such as stainless steel, it is necessary to heat the whole.
4 shows an embodiment different from that in FIG. 4 and shows an example in which the entire back side of the peeling plate 19 is heated by a heater. In this case, the release plate 1 is controlled by controlling the input of the electric heater 19c without using any special means.
9 can be easily controlled to 50 ° C. or higher.
FIG. 6 shows an example in which the heat carried by the heat conducting plate 19b shown in FIG. 4 is insufficient and the peeling plate 19 cannot be heated to 50 ° C. or more by using an electric heater 19c to assist this. It is shown. Furthermore, although the present invention has been described in detail with an example in which the above-mentioned peeling plate 19 is heated, the same applies to the auxiliary tank 20 located on the downstream side of the peeling plate 19. , For example, electric heater 1
It is heated at 9c. (See FIG. 1.) By doing so, the oils and fats separated from the oil skimmer pass through the peeling plate 19, become high-purity oil in the auxiliary tank 20, are led to the oil tank 12 by liquid, and solidify and deposit on the way. It does not hinder the next flow.

Next, the oil / fat removing device 2 having the above-described structure.
The step of removing fats and oils in the inside will be described with reference to FIG. 1. First, the fats and oils are put into a cleaning tank 9 dedicated to fats and oils, pass through a drain port 9a as indicated by an arrow, and pass through a duct 15 provided in a second separation tank 14. And the second separation tank 14 from the discharge port 16 as shown by the arrow.
It is thrown in. The wastewater containing fats and oils that has entered the second separation tank 14 is separated into water and fats and oils by the guide plate 22, and the water rises above the separation tank 14 with a specific gravity difference as shown by the arrow as shown by the arrow. The fats and oils float on the surface while maintaining an appropriate viscosity without being reduced in viscosity (solidification), because the second separation tank 14 is originally heated by the heater 21. The oil floating on the surface is pumped up by the oil skimmer 10 or the like. The pumped oil is separated from the peeling plate 19 and the auxiliary tank 20.
Is stored in the oil tank 12 and recycled. On the other hand, the water from which the fats and oils have been removed passes through the bottom of the guide plate 22 to the arrow as shown by the arrow, and further reaches the separation tank 11 from the second separation tank 14 to the separation tank 11 as shown by the arrow. Of the waste water, the fat (the fat that could not be removed by the oil skimmer 10) floats upward due to the difference in specific gravity and is absorbed by the oil absorbing mat 26. The oil-free water enters the auxiliary separator 23 composed of a double pipe as shown by an arrow, enters the pipe 27 from the upper end of the inner pipe 23b, and is guided to the grease strap 7 (see FIG. 3). By installing the grease removal device 2 in front of the grease strap 7 in this manner, contamination of the grease strap 7 can be suppressed. Further, since the present grease removing device 2 is provided with the casters 29 as shown in FIG. 2, it can be easily moved not only in the kitchen but also outside the building. In other words, the present fat and oil removing device can be used by moving it to a convenient place in a shop or the like. In this process, since the peeling plate 19 is heated, the oil and fat peeled from the oil skimmer 10 does not solidify in the process of flowing through the peeling plate 19 and adhere to the peeling plate 19. . If the oil or fat once solidifies and accumulates on the peeling plate 19, the next oil or fat flows on the surface of the solidified oil or fat, so that the accumulation is accelerated more and more. This indicates that the release plate 19
Means that it is necessary to always keep the temperature at 50 ° C. or higher regardless of the ambient temperature. The present invention has realized this. Another feature of the present invention is that the second separation tank, the oil skimmer, the oil tank, the auxiliary tank, the heater, the auxiliary separator, and the like are easily detachable based on the separation tank 11, It is superior in serviceability. Yet another feature of the present invention is to recover oils of high purity and suitable for recycling. For this purpose, a temperature-controlled main body tank is provided downstream of the peeling plate 19. That is, the auxiliary tank of the present invention is designed so that a separation tank is formed in the order of water, impurities and oil from the bottom due to a difference in specific gravity, and only the oil on the surface overflows to the oil tank (recovery tank) side and flows. In other words, the oil taken in by the oil skimmer contains some impurities and water. It is desired to remove these impurities and water to make high-purity oil, to use it as feed for livestock, and to recycle it as a raw material for soap. The means for increasing the purity is the auxiliary tank of the present invention. This auxiliary tank is maintained at a temperature (for example, 50 ° C. or higher) at which the waste cooking oil and lard collected by the oil skimmer do not solidify. The waste cooking oil and lard are separated into a water layer, an impurity layer (pepper, miso) and an oil layer due to a difference in specific gravity while staying in the auxiliary tank. Then, the oil layer located at the top overflows and flows into the oil tank (recovery tank).
By doing so, a higher purity oil can be recovered. On the other hand, impurities other than oil and water are returned to the separation tank when they exceed a specified amount, and are returned to the separation tank 14 via a trap (double pipe separation device 20a).

[0013]

Since the present invention provides the above-described apparatus, it is possible to prevent sewage and the like from being stained, and to provide a great effect such that oils and fats can be collected and recycled. In particular, the function of the grease strap, which could not withstand long-term use, can be prevented, the grease can be collected regardless of the ambient temperature, and the double and triple grease removal function further improves the purification of wastewater flowing into the sewer. It has an effect. In addition, in the present invention, the oil plate portion is heated in the release tank portion or the oil tank portion, so that the oil and fat removing device itself can always be used in a good state.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a grease removing apparatus provided with the present invention, and is a sectional view corresponding to the AA section in FIG.

FIG. 2 is an external perspective view of the grease removing device in FIG. 3;

FIG. 3 is a diagram illustrating an oil / fat removal system including the oil / fat removal apparatus of the present invention.

FIG. 4 is an enlarged explanatory view of a heat conductive plate in FIG. 1;

FIG. 5 is a view showing an embodiment different from that of FIG. 4, and is a view for explaining a state in which a peeling plate is heated by an electric heater.

FIG. 6 is a view showing an embodiment different from FIGS. 4 and 5, and is a view for explaining a state in which the heat conducting plate of FIG. 4 is heated by an electric heater or the like and the peeling plate is heated to an appropriate temperature.

FIG. 7 is a diagram showing an arrangement relationship between a cleaning tank dedicated to fats and oils and a second separation tank.

FIG. 8 is a diagram showing a state in which an auxiliary separator is attached to a processing tank of the grease removing apparatus of the present invention.

FIG. 9 is a diagram for explaining oil and fat recovery in an auxiliary separator and an oil absorbing mat.

FIG. 10 is a diagram illustrating a conventional fat and oil removal system with illustrations.

FIG. 11 is a diagram illustrating a grease removal system using a grease strap (interceptor) different from that in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cleaning tank only for fats and oils 2 Removal device for fats and oils 3 Pipe 5 Cleaning tank 6 Pipe 7 Grease strap 8 Sewerage 9 Cleaning tank exclusively for fats and oils 9a Drain port 10 Oil skimmer 11 Separation tank 12 Oil tank 13 Tableware 14 Second separation tank 14a outer wall surface 15 duct 16 discharge port 17 drive motor 18 belt 19 release plate 19a second release plate 19b heat conduction plate 19c electric heater 20 auxiliary tank 20a double pipe separation device 21 heating heater 21a temperature control unit 21b weight 22 guide Plate 23 Auxiliary separator 23a Outer tube 23b Inner tube 24a Oil surface 24b Drain surface 25 Water intake 26 Oil absorption mat 27 Piping 28 Cleaning drain cap 29 Caster 30 Cleaning tank (sink) 31 Cree strap 32 Piping 33 Lid 34 Piping 35 Cleaning Tank (sink) 36 grits Strap 37 separation tank 38 conduit 40 filter 41 drain port 42 pump 43 oil recovery unit

Claims (5)

[Claims] 1. An oil skimmer for pumping oils and fats collected on an upper surface of a separation tank, an oil tank for storing oils and fats captured by the oil skimmers, and the like. A release plate is provided between the oil tank and the oil skimmers. An oil / fat removing apparatus characterized in that the oil / fat separated from the oil skimmer is guided to an oil tank via the release plate, and the release plate is heated to a temperature not lower than the solidification temperature of the oil / fat. 2. A heat conductive plate, one end of which is immersed in a separation tank where the temperature inside the tank is always heated to a temperature higher than the fat / solidification temperature, is closely attached to the release plate, and the release plate is heated to a temperature in the separation tank. 2. The fat and oil removing device according to claim 1, wherein the fat and oil is heated to a temperature higher than the solidification temperature of the fat and oil. 3. The apparatus for separating and removing fats and oils according to claim 1, wherein the peeling plate is heated to a temperature not lower than the solidification temperature of the fats and oils by an electric heater or the like. 4. The method according to claim 1, wherein the separation plate and the auxiliary tank for guiding the oil and fat captured by the oil skimmer to the oil tank are heated to a temperature higher than the solidification temperature of the oil and fat. apparatus 5. An oil / fat pumped by an oil skimmer or the like from a separation tank is taken into a temperature-controlled auxiliary tank, where it is separated into at least oil, impurities, and water layers, and only oil is transferred to an oil tank side. Oil removal device characterized by flowing