JPS61100212A - Method and apparatus for collecting cooking oil - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to the field of oil disposal methods and equipment, and in particular to a unique receiving and storage system for collecting used cooking oil from restaurants and the like. , relates to a cooking oil collection method and collection device.

(Prior Art) When used cooking oil is handled in a restaurant for the purpose of disposal, it is usually done by manually pulling out the oil in a receiving container, and the receiving container is manually transported to an outdoor storage container. This has been carried out either by being carried on a trolley or by being carried on a dolly or other vehicle. 148.9℃ (300
The high temperatures of such oils, which can exceed temperatures exceeding 100% (see below), are extremely dangerous from a safety standpoint for employees and others in the vicinity, and accidents have resulted in burns. In addition, due to the heavy weight of such oils, other injuries such as back strain were often caused.

Additionally, used cooking oil can be sold for recycling. However, in order to do so, the oil needs to be collected and retained in a readily removable condition from within the restaurant premises where it is used. Until now, used cooking oil has typically been stored outside of restaurants in open drums with removable lids, or at best in drums stored in drum storage. Since minimal protection is taken on these drums, the oil often becomes contaminated with waste material or various animals.

Even when drum storage hangars are used, they are often severely damaged by drum movement after several months of use. Generally, when these drums are filled with stored oil, which is a waste product, they are loaded onto the oil processor's truck and transported to the factory for processing.
! I can fall. However, these drums are very heavy and difficult to handle. In some cases, the drums were flipped over while being loaded onto the truck and their contents spilled onto the restaurant's parking area.

(Problems to be Solved by the Invention and Effects of the Invention) The method and device for collecting oil for cooking according to the present invention are as follows:
The present invention provides a cooking oil protection device. In the past, discarded cooking oil was extremely expensive and was often stolen. Tanks according to the invention automatically reduce or eliminate this problem. Second, by storing cooking oil outside of the restaurant and in closed and controlled accessible containers, indoor and outdoor restaurant management maintenance and hygiene issues typically associated with discarding cooking oil can be avoided. The problem is resolved. For example, traditional outdoor storage containers often leaked onto the asphalt surface, causing severe deterioration. In the past, health authority regulations often made it difficult to store cooking oil for disposal within restaurant facilities. Furthermore, by storing the oil in a closed and sealed container, rodents, insects and solid contaminants are kept out, and outdoor and indoor sewer pipes are no longer clogged due to the discharge of waste oil. In addition, the cooking oil collection method and collection device according to the present invention can increase the available interior space of the restaurant and provide an extra source of revenue by selling the high quality collected cooking oil. , which has provided restaurateurs with a cost-saving measure. The method and apparatus of the present invention will provide accurate weighing of all cooking oil, thereby greatly reducing theft by restaurant employees. Finally, any possibility of contamination of the oil during storage is virtually eliminated, making it possible to reuse the oil itself, for example as an additive in soaps, cosmetics, animal food and plastics, etc. becomes.

It is therefore an object of the present invention to provide a new and improved apparatus for handling and disposing of used cooking oil.

Another object of the present invention is to provide a convenient storage method for selling used cooking oil so that the oil can be removed from a restaurant in a convenient and easy-to-handle manner.

These and other objectives can be achieved by using the method or apparatus according to the invention.

(Means for Solving the Problems) According to the present invention, the above-mentioned objects can be achieved by the configuration described below. A receiving device is located inside the building to which the used cooking oil is to be removed. The receiving device is a transfer pipe extending through one of the walls of the building and includes a connection device to an insulated storage tank permanently fixed outside the building. It is connected to a transfer pipe having an outer end outside the building. The storage tank may have a cylindrical shape, and is provided with an electrically powered heating device that maintains the temperature of the oil in the storage tank at a desired temperature above the solidification temperature of the specific cooking oil. ing. The used cooking oil is discharged from the storage tank through a discharge pipe inserted into the storage tank. the used cooking oil maintained at a pumpable viscosity by the heating device;
It is collected periodically by connecting a hose to the discharge pipe and pumping the oil into a collection vehicle, such as a tank truck.

The invention and its operation in achieving the above objects will be better understood from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The same reference numerals are used to refer to the same parts throughout the accompanying drawings.

Embodiment FIG. 1 shows, generally at 10, a cooking oil collecting device which is a preferred embodiment of the present invention. The water collection device is shown coupled to a wall 12 of a building, typically the exterior wall of a restaurant or the like. The collection device is preferably made of stainless steel and has a removable filter wire not shown. In an alternative embodiment, a simple transfer pipe 16 or receiving device may be used to replace the receiving vessel part 14. An over-the-floor filter system, or dolly filter, may be used to pump the filtered oil from the restaurant's deep-fry ink pan directly into the pipe and into the cooking oil collection system. .

As can be seen in FIG. 3 illustrating this method, the Dolly filter 55 connects its oil sump 56 to a pressure steel discharge valve 52.
It is located directly below 3. The high temperature oil discharged from the pressure cooker 52 is passed through the vertical section 5 of the Dolly filter 55.
It is pumped through a filter device arranged in 7 and also pumped back into pressure steel 52 via a nozzled pipe or band 58 . band 58
A thermally insulated handle 60 is welded to the tip 59 of the band 58, and branches from the band 58 to prevent burns to the person handling the band.

After being used for a sufficient period of time, until the oil becomes odorous or until the concentration of fatty acids reaches or exceeds an acceptable limit, the oil is discharged into the discharge pulp 5.
3, the oil is discharged from the pressure cooker 52 into the oil sump 56 of the Dolly filter 55, and is discarded. The Dolly filter 55 is then pushed towards the wall 12 of the building.

The end of the band 58 is then connected to the vertically disposed wall 1
is inserted into a horizontal transfer pipe 16 extending through 2 and adapted to pump the hot and used oil, which has passed through a filter device, into a storage tank 20. Since the storage tank 20 is disposed within a tank housing 24 filled with a heat insulating material 26, heat from the oil is not suddenly lost. However, during cold weather, the heating element 42 controlled by the thermostat 4 can maintain the stove at the desired temperature.

The floor filter device, Dolly Filter 55, or floor filter, is manufactured by Collematic, Inc., Lewis Pill, Kentucky, United States of America.
ctra, Inc.), Mies Filter Products, Inc., West Bend, Wisconsin;
cts) or Digi Industries, Inc. ([), domiciled in Culver City, California.
ean industries). The hot oil is extracted from the pressure steel and passed through a filter device to remove all particulate matter.
It is then pumped back to the pressure steel through a Dolly filter nozzle pipe 58 (referred to as a wand by those skilled in the art).

When the concentration of free fatty acids in the oil approaches or exceeds 1.5%, a smelly taste is transferred to the food.
The oil must be thrown away.

At this time, the operator handles the hot smelly oil from the autoclave into the Dolly filter 55 and then rolls the Dolly filter wheels to move it to the wall 12 of the building adjacent the via 16. The operator then pumps the oil, which has been filtered of all particulates, through the band 58 and into the storage tank 20. In some fast food restaurants, Dolly filters 55 are not used. At these stores, the hot oil is passed through a large funnel-shaped filter and placed in a 5-gallon (18,9 liter) bottle with handles on both sides.
Handled into storage pots. Next, employees must return the filtered oil to the pressure cooker. Prior to the present invention, if the oil became smelly, the employee would have to hold the hot oil within an arm's length from his or her body and store it. It had to be transported to the drum storage area. The drum storage area was usually located at the rear of the parking lot. According to the present invention, the distance that hot oil must be transported is significantly reduced! : Got it. Instead of transporting pressure steel across a parking lot, it is now only from the pressure cooker to a receiving container 14 placed inside the wall 12 of the building. Because most instant food restaurants employ teenage employees at minimum wages, and because the storage pot of hot oil must be held a certain distance from the employee's body, the present invention Before this, it often happened that some of the hot oil spilled nearby and onto the employee, causing serious second-degree burns and even third-degree burns.

This means that an employee may hold 15.1 to 18.9 liters (4 to 5 gallons) of oil at a temperature of 148.9 degrees Celsius (below 300 degrees Celsius) within arm's reach while holding the door open. This is especially true in very busy restaurants where drums must be opened and transported by foot or back to the drum storage area. - A single wrong step or slip could and did cause serious and traumatic injury to young employees.

According to a preferred embodiment of the invention, the used oil is passed through the pipe 1 through the band 58 of the Dolly filter 55.
6 and flows outwardly through a pipe 16 extending through wall 12 and into a cylindrical storage tank 20 permanently fixed above foundation 22. It will be done.

Preferably, the cylindrical side walls of the storage tank 20 are parallel to the side walls of the building. Preferably, the storage tank 20 is located within a tank housing 24 that is filled with insulation 26 surrounding it. Additionally, preferably the transfer pipe 16 extending through the wall 12 of the building is not exposed to external members. That is, the tank housing 24 is mounted flush with the wall area of the wall 12 through which the transfer via 16 passes, allowing oil to flow directly from the inside of the building through the wall 12 and into the inside of the tank housing 24. It is like that.

FIG. 4 illustrates a well-known technique for discharging oil from pressure steel 52 into storage pot 50 through discharge valve 53. In this embodiment, the storage pot 50 can be manually lifted and transported to the building wall 12 and then poured into the receiving container 14. Then, the high temperature oil is
16 and will be injected into a storage tank 20 located inside a tank housing 24 immediately adjacent to the exterior of the building wall 12 as described above.

As shown in FIG. 5, the storage tank 20 can be easily and quickly emptied by connecting the hose 63 to the quick disconnect coupling 38. Pump (P
) and the metering device are schematically illustrated in the hose 63 leading to the tank truck (T>).

Since the oil can be filtered and kept clean and free of contaminants, the oil collector or oil extractor can determine how much high-grade oil is pumped into the truck. It is possible to accurately measure whether or not the item was sent. Restaurateurs can now save up to 1q for their used cooking oil, while also eliminating the safety and maintenance issues associated with open drum storage.

1 The cooking oil collecting device 10 is normally located in a convenient area relative to the deep-frying pressure steel area within the building and is conveniently located to receive used cooking oil. The used cooking oil is placed into the receiving container part 14 by means of a pump and pipe system or by a hand-placed container or storage pot, or preferably directly from the band 58 of the Dolly filter 55 from pressure steel. The pump housing 24 is then inserted by pumping through the pipe 16, which is placed horizontally in the vertical external wall 12, by pumping through the pump housing 24, which is immediately adjacent to the building and containing the insulation. storage tank 2 located within
Can be sent out up to 0.

The transfer pipe 16 extends through the top of the storage tank 20 and is adapted to drain the used cooking oil directly into the interior of the tank 20. The storage tank 20 itself and the discharge pipe 30 are c+;'past''alr&
6 to 51. :・(7) Peg 28"・! May be provided, for example, on the top of the tank housing 24. A side inspection door may be provided to facilitate cleaning and maintenance. In a preferred embodiment, a peep door may be provided. A window latching device 32 is arranged inside the building.
4. Since Kake Yozatsu@32 can only be operated from inside the building, it is not possible to approach the cooking oil collecting device 10 without permission from the restaurant manager. As a result, theft or damage to the oil collection device RA10 is further prevented.

The discharge pipe 30 shown in FIG. 2 includes a valve that is opened to allow the contents of the storage tank 20 to be pumped to a collection truck.

The discharge pipe 30 extends almost to the bottom of the storage tank 2o so that almost all the used cooking oil in the tank can be pumped to the collection vehicle. Connected to the end of the discharge pipe 30 is a flexible hose 36 provided with a corresponding quick-disconnect coupling 38 for connection to the receptacle hose of the collection vehicle. A small plug 40 that allows gravity drainage for extraction and cleaning is provided at the bottom end of the tank 20 to allow complete extraction from the tank when cleaning is required. The tank 20 is also fitted with a heating element 42 that surrounds at least a portion, and preferably all, of the tank. Preferably, the contents of tank 20 have a flowable viscosity, typically between 40.6°C and 43.3°C (below 105°C and 1°C).
10'F). Normal, 41
A 110 gallon tank requires 4 minutes with a 350 watt heating cable, and a 220 gallon tank requires a 700 watt heating cable. In order to maintain the temperature of the used cooking oil at a desired temperature, a temperature control device 44 with a thermostat is attached to the heating cable. In order to prevent the tank 20 from being overfilled, a warning generating device is provided which is electrically connected to an automatic shut-off valve 47 or a light 49 located inside the restaurant. Regardless of which embodiment is chosen, a fluid level measuring device 46 is provided.

The water level measuring device 46 is activated when the used cooking oil reaches a predetermined height in the tank 20 by means of a light 49 or an automatic shut-off valve 47 which is preferably connected to the transfer via 16. Close. An overflow pipe 48 for draining excess oil to protect the inside of the tank housing 24 from excess oil.
is provided.

(Operations and Effects of the Present Invention) When in use, the cooking oil collecting device of the present invention is gradually filled with used cooking oil.

At periodic intervals, the contents of the tank are pumped from the tank to a bulk cooking oil collection vehicle, such as a tank truck, and sold. In this way, safe and cost effective storage and recovery of cooking oil is achieved.

By using this collection device, restaurants can earn hundreds of dollars a year by selling used cooking oil, while protecting restaurant employees from dangerously hot cooking oil. It became something to be done.

[Brief explanation of the drawing]

FIG. 1 is a cross-section of a storage tank that is an embodiment of the present invention. 2 is a partially cutaway front view of the storage tank shown in FIG. 1, and FIG. 3 shows another embodiment of the invention in which oil is removed from a cooking pot and pumped into the storage tank. Figure 4 shows a schematic side view of the Deep Fly Ink pressure steel and trademarked Collcctramatic dolly filter, partially shown in phantom lines, illustrating how to transfer the contents of the pressure cooker to a storage bot. Figure 5 is a side elevation view schematically illustrating the method of the present invention for pumping oil from a storage tank to a tank truck; It is a diagram. 10... Cooking oil collecting device 12... Building wall (vertical outer wall of building) 14°゛°
Receiving container part 1□
16... Transfer pipe (pipe) 20... Storage tank (receiving tank) 24... Housing 26... Insulation material 28... Peephole 30... Discharge pipe (oil discharge pipe) 32...・
Overhang device 36...Hose (flexible hose) 38...Quick disconnect coupling 42...Heating member (heating device) 46...Fluid level measuring device 47...Auto shut-off valve (valve) ' 48... Overflow pipe 49... Light 50... Storage pot 52... Pressure steel (cooking pot) 55... Dolly filter 58... Band

Claims (13)

[Claims] (1) A cooking oil receiving device comprising a high temperature used cooking oil receiving device and a transfer device for transporting the oil from a food preparation building to a receiving tank located outside the building through a vertical exterior wall of the building. An oil collection and treatment device comprising: A. a pipe extending horizontally through the vertical exterior wall of the building and opening into the interior of the vertical exterior wall, which is the interior of the building; and B. the outside of the building. C. a receiving tank disposed in the building and communicating with the pipe to receive the hot used cooking oil from the building; D. a heating device for heating the contents of the receiving tank to bring the contents of the receiving tank to a suitable viscosity for pumping; E. removing the oil from the receiving tank; F. a normally latched viewing window mounted in said compartment proximate said oil drainage pipe; A cooking oil collecting device comprising: a latch device that can be operated from the inside; (2) The apparatus according to claim 1, wherein the oil discharge pipe extends to the bottom of the receiving tank and is connected to a flexible hose. (3) The device according to claim 2, wherein the flexible hose is further equipped with a quick-disconnect coupling that corresponds to a receiving hose coupling provided on the oil collection vehicle. Oil collecting device. (4) Apparatus according to claim 1, wherein the receiving tank has a fluid level measuring device therein. (5) In the device according to claim 4, the fluid level measuring device is configured to provide a warning disposed inside the building when the fluid in the receiving tank reaches a predetermined water level. A cooking oil collecting device that has a device that turns on a light. (6) In the device according to claim 4, the fluid level measuring device in the receiving tank measures the fluid level in the receiving tank when the oil reaches a predetermined water level in the receiving tank. A cooking oil collecting device having a device for closing a valve arranged in association with the cooking oil collecting device. (7) The apparatus according to claim 1, wherein the receiving tank has an overflow pipe for draining excess oil. (8) A storage tank for storing used high-temperature cooking oil used in cooking pots of a food preparation building, located in an insulated housing locked on the outside of said building and penetrating the outside wall of said building. 1. A method for collecting cooking oil, the method comprising: safely and hygienically transporting oil for cooking to a storage tank that is connected to a pipe that extends from the outside of the building and that has one end that opens inside the outer wall of the building; removing the used high-temperature cooking oil from the pot; B. passing the oil through a filter device and removing all filterable particulates from the oil; and C. removing the oil through the filter device from inside the building. D. applying the necessary heat to the contents of the storage tank to bring the oil to a pumpable viscosity, and E. F. Unlatch the viewing window of the locked and insulated housing by manually operating a latching device; A method for collecting cooking oil, characterized in that it is connected to a communicating receiving hose, and G. pumping said oil to transfer said oil from said storage tank to an oil receiving container. (9) In the method according to claim 8, the pipe opening into the inside of the building is in communication with a receiving container section, and the used high-temperature cooking oil is removed from the cooking pot. The extraction operations include: A. extracting the oil into a storage pot, B. transporting the oil by hand to the receiving container section, and C. passing the oil through the pipe to the storage tank located outside the building. A method for collecting oil for cooking, characterized in that the oil is injected into the receiving container portion so as to be transferred. (10) In the method according to claim 8,
The used hot cooking oil is pumped from the cooking pot through a filter device and placed in a dolly filter having bands, which then rolls its wheels up to the outer wall adjacent to the opening of the pipe. Cooking oil, characterized in that the oil that has been rolled and moved and has passed through the filter device is pumped through the band of the Dolly filter into the pipe to be transferred to the storage tank. Collection method. (11) In the method according to claim 8,
The used hot cooking oil is extracted into a dolly filter, after which the dolly filter is rolled on its wheels to the outer wall adjacent to the pipe and transferred to the storage tank. A method for collecting oil for cooking, characterized in that it is pumped into a pipe. (12) In the method according to claim 8,
A method for collecting cooking oil, characterized in that the oil is pumped from the storage tank to a tank truck and weighed. (13) In the method according to claim 8,
A method for collecting cooking oil, characterized in that the contents of the storage tank are maintained at a constant temperature throughout the storage period using a thermostat.