JP5213744B2 - Food waste liquid treatment equipment - Google Patents

Description

  The present invention relates to a food waste liquid treatment apparatus for separating animal fats when discarding food waste liquid consisting of leftover food soup and waste liquid, seasoning liquid, etc. that are not required during cooking. It belongs to the technical field concerned.

  Currently, grease traps are installed in the middle of drainage channels connected to sewers to separate and remove residues, fats and oils contained in waste food wastes from the liquid parts. Yes. However, if the temperature of the food waste liquid is high, animal fat contained in the food waste liquid will pass through the grease trap while dissolved in the liquid part, generating bad odor from the sewer and burdening the sewage treatment plant. Or increase it. In addition, if the temperature of the food waste liquid is low, animal fat contained in the food waste liquid immediately solidifies and adheres to the entire grease trap from the drain groove, causing fouling. Take care of cleaning. Therefore, there is a demand for the development of a technique for reliably separating animal fat contained in the food waste liquid from the liquid portion before discharging the food waste liquid into the drain.

Conventionally, as a general oil separation technique, for example, the one described in Patent Document 1 below is known.
In Patent Document 1, a storage tank that stores liquid to be processed, a stirring mechanism that is provided inside the storage tank and that stirs the liquid to be processed, and is provided inside the storage tank. And a cooling mechanism that cools the liquid to be processed, and cools the liquid to be processed stored in the storage tank while stirring to solidify the oil and float on the surface of the liquid portion. ing.

JP 2000-354704 A

  Since the oil separation device according to Patent Document 1 is premised on batch-type processing, there is a problem that it cannot be applied to food waste liquids that require continuous and intermittent input for each food or drink. . In addition, when applied to food waste liquid, when animal fat particles are refined and solidified by stirring, animal fat does not float on the surface of the liquid part, and the membrane is added to the storage tank, stirring mechanism, and cooling mechanism. As a result, the animal fats cannot be effectively separated.

  The present invention has been made in consideration of such problems, and reliably drains animal fat contained in food waste liquid from the liquid portion before discharging the food waste liquid into the drainage ditch. It is an object of the present invention to provide a food waste liquid treatment apparatus that can be used.

  In order to solve the above-described problems, the food waste liquid treatment apparatus according to the present invention employs means described in each of the claims.

That is, according to the first aspect, when the food waste liquid is introduced and stored at any time and the stored amount of the food waste liquid exceeds a certain amount, the excess liquid portion overflows to the outside and the food waste liquid is input. pretreatment chamber and the post-processing chamber on the side where the liquid portion of the food waste liquid overflows and a reservoir that is partitioned in communication with a portion at the top, animal contained in the reservoir food waste to reservoir of It is equipped with a cooling mechanism that cools the food waste liquid to a temperature at which the fat content solidifies, and an auxiliary cooling mechanism that is installed at the bottom of the pretreatment chamber of the storage tank and agitates and cools the introduced food waste liquid with bubbles And

  With this method, food waste liquid can be added to the storage tank where food waste liquid is stored at any time for the realization of separation technology that floats animal fats solidified by cooling the food waste liquid with a cooling mechanism on the surface layer of the liquid part. The storage tank is made to overflow, and the storage tank is divided into a pretreatment chamber and a posttreatment chamber. In the pretreatment chamber, the non-mechanical auxiliary cooling mechanism assists cooling of the food waste liquid and the posttreatment chamber. By separating and floating solidified animal fat that contains food waste fluid statically, it is possible to handle food waste fluid that is continuously and intermittently fed, and animal fat is deposited on each part. Prevent sticking.

  According to a second aspect of the present invention, in the food waste liquid treatment apparatus according to the first aspect, the post-treatment chamber of the storage tank is partitioned into a first chamber and a second chamber that are partially communicated in the flow direction of the liquid portion of the food waste liquid. It is characterized by being.

  In this means, the post-treatment chamber of the storage tank is divided into the first chamber and the second chamber, so that the influence of the shaking of the food waste liquid in the pre-treatment chamber of the storage tank is reduced stepwise.

  According to a third aspect of the present invention, there is provided the food waste liquid treatment apparatus according to the first or second aspect, further comprising a filter that prevents the solidified animal fat from being mixed into the liquid portion of the food waste liquid overflowing from the storage tank. It is characterized by that.

  In this means, the animal fat content solidified from the food waste liquid is captured by providing the filter.

  According to a fourth aspect of the present invention, in the food waste liquid treatment apparatus according to the third aspect, the filter is detachable from the storage tank, and when the food waste liquid is taken out from the storage tank, solidified animal fat is removed from the liquid portion. It is characterized by being raised

  In this means, the filter lifts the animal fat content solidified from the food waste liquid from the liquid portion and removes it from the storage tank, so that the filter removes the animal fat content solidified from the food waste liquid. Can function as.

  Further, according to claim 5, in the food waste liquid treatment apparatus according to any one of claims 1 to 4, the storage tank floats on the surface layer of the liquid portion where the solidified animal fat is removed from the food waste liquid. It is characterized by a dedicated overflow port that overflows the plant oil.

  In this means, a dedicated overflow port for removing vegetable oil in the food waste liquid is provided, thereby storing the vegetable oil that does not solidify at the cooling temperature that solidifies the animal fat in the food waste liquid. It can be removed by overflowing.

  The apparatus for treating food waste liquid according to the present invention is a storage tank in which food waste liquid is stored for the realization of a separation technique in which animal fats cooled by a cooling mechanism and solidified are floated on the surface of the liquid part. The waste liquid can be added at any time to allow the liquid to overflow, and the storage tank is divided into a pre-treatment chamber and a post-treatment chamber, and the pre-treatment chamber cools the food waste by a non-mechanical auxiliary cooling mechanism. In addition, it is possible to cope with food waste liquids that are continuously and intermittently fed, by floating the solidified animal fats that are statically contained in the post-treatment chamber. In order to prevent fat from adhering to each part in the form of a film, it is possible to reliably separate animal fat contained in the food waste liquid from the liquid part before discharging the food waste liquid into the drainage ditch. effective.

  Furthermore, as the second aspect of the present invention, the post-treatment chamber of the storage tank is divided into the first chamber and the second chamber, so that the influence of the shaking of the food waste liquid in the pre-treatment chamber of the storage tank is gradually reduced. Therefore, there is an effect of promoting the separation and flotation of solidified animal fat containing static food waste liquid.

  Further, as claimed in claim 3, since the animal fat content solidified in the food waste liquid is captured by providing the filter, the solidified animal fat content is mixed in the liquid portion of the overflowing food waste liquid. There is an effect that can be surely prevented.

  Further, as claimed in claim 4, the filter raises the animal fat content solidified from the food waste liquid from the liquid portion and removes it from the storage tank. Therefore, there is an effect that it is possible to easily and surely remove the animal fats solidified from the food waste liquid.

  Further, as claimed in claim 5, a vegetable oil that does not solidify at the cooling temperature that solidifies the animal fat in the food waste liquid by providing a dedicated overflow port for removing the vegetable oil in the food waste liquid. Can be removed by overflowing from the storage tank, so that the vegetable oil can be separated and removed in addition to the animal fat of the food waste liquid.

It is a perspective view of the decomposition | disassembly state of the 1st example of the form for implementing the processing apparatus of the food waste liquid which concerns on this invention. FIG. 2 is an assembly installation state diagram of FIG. 1. FIG. 3 is an enlarged longitudinal sectional view of FIG. 2. FIG. 3 is a block diagram of piping and control in FIG. 2. FIG. 3 is an operation diagram for the animal fat removal operation of FIG. 2. FIG. 6 is an operation diagram for animal fat removal work following FIG. 5. FIG. 6 is an operation diagram for a vegetable oil removal operation subsequent to FIG. 5. FIG. 8 is an enlarged longitudinal sectional view of FIG. 7. It is a perspective view of the decomposition | disassembly state of the 2nd example of the form for implementing the processing apparatus of the food waste liquid which concerns on this invention. FIG. 10 is an enlarged longitudinal sectional view of the assembled installation state of FIG. 9. It is a perspective view of the principal part of the 3rd example of the form for implementing the processing apparatus of the food waste liquid which concerns on this invention. It is a perspective view of the principal part of the 4th example of the form for implementing the processing device of the food waste liquid concerning the present invention.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the processing apparatus of the food waste liquid which concerns on this invention is demonstrated based on drawing.

  FIGS. 1-8 shows the 1st example of the form for implementing the processing apparatus of the food waste liquid which concerns on this invention.

  In the first example, the one suitable for treating a relatively large amount of food waste liquid W made of soup such as ramen left in the kitchen installed in a restaurant kitchen is shown.

  As shown in FIG. 1, the first example includes a storage tank 1, a cooling mechanism 2, a filter 3, and an auxiliary cooling mechanism 4 as main parts. And as shown in FIG. 2, the drainage groove | channel formed in the magnitude | size and the shape arrange | positioned adjacent to the sink S installed in the kitchen etc. of a restaurant, and was arrange | positioned on floor surfaces, such as a kitchen of a restaurant Connected to the grease trap G installed in the 1st through the overflow tube A with the valve V and the drain pipe P, with the valve V on the tank T installed on the floor surface of the restaurant kitchen etc. The second overflow cylinder B is connected.

  In the storage tank 1, a plate-shaped lid body 12 is detachably mounted on an upper surface of a box-shaped tank body 11 having an open top.

  As shown in FIG. 3, the tank body 11 of the storage tank 1 has a cooling mechanism in a part of the upper part between the inner wall 11a and the outer wall 11b made of a corrosion-resistant metal plate having good heat conductivity such as stainless steel and aluminum. 2 is formed in a watertight box with a hollow wall structure provided with an equipment space 11c of a heat radiating section 23 described later, and four corners of the bottom are supported by legs 13. A heat radiating portion 23 described later of the cooling mechanism 2 is in contact with a part of the upper portion of the inner side surface of the inner wall 11a. The interposed heat insulating material 11d is in contact with the other part of the inner surface of the inner wall 11a and the entire inner surface of the outer wall 11b. A rectangular first overflow port 11 e is opened at the upper end of one side of the tank body 11. The first overflow cylinder A is connected to the first overflow port 11e. A drain outlet 11 f is opened at the center of the bottom of the tank body 11. The drain pipe P (with an open / close valve) is connected to the drain port 11f. Between the side parts of the tank body 11, a partition plate type rectifying plate 11 g is provided so as to face the first overflow port 11 e in the vicinity. The lower end portion of the rectifying plate 11g is set to be vertically long with a small space between the bottom portion of the tank body 11 and the rectifying plate 11g. A square second overflow port 11h is opened at the upper end of the current plate 11g. The second overflow cylinder B is connected to the second overflow port 11h.

  As shown in FIG. 3, the lid 12 of the storage tank 1 has a sandwich structure in which a heat insulating material 12b is built in an outer wall 12a made of a corrosion-resistant metal plate such as stainless steel or aluminum. It is formed in a plate and is detachably brought into contact with the edge of the upper surface of the tank body 11. In the vicinity of one end of the lid 12 (located on the opposite side of the tank body 11 from the first overflow port 11e), an inlet 12c into which the food waste liquid W is introduced is opened. An introduction member 14 is attached to the insertion port 12c. The introduction member 14 is stretched around the inlet 12c and has a net-like filter surface 14a for filtering off the residue Wa such as food and seasoning contained in the food waste liquid W, and the food product standing up and covering the filter surface 14a. It consists of a scattering prevention plate 14b that prevents the waste liquid W from scattering.

  As shown in FIG. 4, in the cooling mechanism 2, a heat radiating unit 23 is connected to a cooler unit 21 in which a power supply unit, a compressor, and the like are built in via a pipe 22. In the middle of each pipe 22, a flow control valve 24 having an open / close valve function for controlling the flow rate of the refrigerant is connected. About the thermal radiation part 23 accommodated in the installation space 11c of the tank body 11 of the storage tank 1, the temperature sensor 25 which detects the temperature of the food waste liquid W in the accommodation position is provided in proximity. The flow control valve 24 and the temperature sensor 25 are connected to the central control unit 51 of the control device 5 and function to cool the food waste liquid W to a constant temperature set by the operation unit 52.

  The filter 3 has a reticulated mesh surface 32 stretched on the bottom surface of a square-plate side plate portion 31 having a size accommodated in the inside of the storage tank 1 defined by the flow straightening plate 11h of the tank body 11, and the storage tank A leg portion 33 that forms an interval with the bottom of one tank body 11 is provided at the lower end portion of the side plate portion 31. The side plate portion 31 has a plurality of small holes 34 drilled, and one surface forms a space between the side portion where the first overflow port 11e of the tank body 11 of the storage tank 1 is opened. The size is formed so as to be in contact with the current plate 11h, and the other three surfaces are formed to be in contact with the side portion of the tank body 11 of the storage tank 1. A blind partition plate 35 parallel to the rectifying plate 11 g of the tank body 11 of the storage tank 1 is attached between the two side plate portions 31. The partition plate 35 has an upper end portion slightly lower than the upper edge portion of the side plate portion 31, and a lower end portion that penetrates the mesh surface 32 and protrudes to the same length as the leg portion 33. One tank body 11 is partly communicated with the upper part and partitioned into a pretreatment chamber X and a posttreatment chamber Y. Preferably, the attachment position of the partition plate 35 is set so that the volume of the post-processing chamber Y is larger than that of the pre-processing chamber X.

  The auxiliary cooling mechanism 4 includes an air ejection nozzle installed at the bottom of the pretreatment chamber X of the tank body 11 of the storage tank 1. The auxiliary cooling mechanism 4 includes an air blower (not shown) connected to the control device 5.

  In order to use the first example, as shown in FIG. 2, the tank body 11 of the storage tank 1 is installed with a lid 12 covered. The valve V of the first overflow cylinder A is opened. Further, the valve V of the second overflow cylinder B is closed.

  And the food waste liquid W is thrown in from the inlet 12c of the cover body 12 of the storage tank 1. FIG. In addition, since the inlet 12c of the lid 12 of the storage tank 1 is always open, the food waste liquid W can be supplied at any time, such as continuously or intermittently. Thereafter, the cooling mechanism 2 and the auxiliary cooling mechanism 4 are driven by the operation unit 52 of the control device 5.

  The food waste liquid W stored in the tank body 11 of the storage tank 1 is agitated and cooled in the pretreatment chamber X by air bubbles ejected from the auxiliary cooling mechanism 4. In this stirring and cooling, when the temperature of the food waste liquid W is 45 to 60 ° C., it is rapidly cooled to about 30 ° C. without driving the cooling mechanism 2 by stirring bubbles at room temperature of 25 ° C. In addition, the stirring by the air bubbles of the auxiliary cooling mechanism 4 makes the concentration of the food waste liquid W uniform, and makes the animal fat Wb, which will be described later, solidify and float efficiently.

  The waste food liquid W filled in the pretreatment chamber X overflows the partition plate 35 of the filter 3 and flows into the posttreatment chamber Y.

  The food waste liquid W that has flowed into the post-treatment chamber Y is maintained in a static state that is not affected by fluctuations caused by bubbles in the auxiliary cooling mechanism 4 and is cooled by the cooling mechanism 2. Therefore, the animal fat Wb contained in the cooled food waste liquid W is solidified while gathering into a lump without adhering to the surroundings in the form of a film, and floats to the surface layer of the liquid portion Wc from the difference in specific gravity. Will increase the thickness. That is, the food waste liquid W is reliably separated into the animal fat Wb and the liquid portion Wc. Incidentally, about the cooling temperature of the food waste liquid W, about 10-15 degreeC is preferable. When the cooling temperature exceeds 15 ° C., the animal fat Wb does not proceed smoothly. On the other hand, when the cooling temperature is less than 10 ° C., fluidization is inhibited in a state where the food waste liquid W is close to freezing, and the animal fat Wb is prevented from floating.

  During the separation of the animal fat Wb and the liquid portion Wc of the food waste liquid W, when the food waste liquid W is additionally charged into the tank body 11 (pretreatment chamber X) of the storage tank 1, the filter The three partition plates 35 function as a dam plate and maintain the static state of the food waste liquid W.

  The liquid portion Wc separated from the animal fat Wb of the food waste liquid W flows out from the mesh surface 32 of the filter 3 and the small holes 34 of the side plate portion 31 to the outside, and the mesh surface 32 and the side plate of the filter 3. Naturally overflowing from the first overflow port 11e of the tank body 11 of the storage tank 1 through the space between the portion 31 (rectifying plate 11h) and the bottom and side portions of the tank body 11 of the storage tank 1 Become. That is, it is not necessary to specifically drive the liquid portion Wc of the food waste liquid W to be discharged. In addition, that the 1st overflow port 11e is square is useful for formation of the natural overflow of the liquid part Wc of the food waste liquid W.

  When the amount of animal fat Wb in the food waste liquid W inside the tank 11 of the storage tank 1 increases, the animal fat Wb filter 3 shown in FIGS. 5 and 6 is used. Simple removal work is performed. That is, first, as shown in FIG. 5, the lid body 12 of the storage tank 1 is removed from the tank body 11 together with the introduction member 14. At this time, since the residue Wa accumulated on the filter surface 14a of the introduction member 14 of the storage tank 1 is moved from the tank body 11, a necessary disposal operation of the residue Wa can be performed. Next, as shown in FIG. 6, the filter 3 is pulled up from the tank body 11 of the storage tank 1. At this time, the liquid portion Wc of the food waste liquid W flows out from the screen surface 32 of the filter 3 or the small hole 34 of the side plate portion 31 and falls, and the animal fat Wb of the food waste liquid W is trapped in the filter 3. It remains on the mesh surface 32. As a result, the animal fat Wb of the food waste liquid W can be moved from the tank body 11 of the storage tank 1 together with the filter 3, and the disposal work necessary for the animal fat Wb can be performed.

  Note that the animal fat Wb of the removed food waste liquid W does not necessarily have to be discarded, and can be reused as a raw material or an intermediate material for various products. That is, the storage tank 1 has a lid 12 to prevent invasion of unnecessary bacteria, dust, etc., and the food waste liquid W is treated at a low temperature, so that the animal fat content of the food waste liquid W is reduced. This is because Wb deterioration and corruption are prevented.

  Next, as shown in FIGS. 7 and 8, the valve V of the first overflow cylinder A is closed and the valve V of the second overflow cylinder B is opened, and remains in the tank body 11 of the storage tank 1. The water level is raised by injecting water or the like into the liquid portion Wc of the food waste liquid W.

  As a result, the vegetable oil Wd of the non-solidified food waste liquid W floating on the surface layer of the liquid portion Wc of the food waste liquid W can be overflowed from the second overflow cylinder B and discharged. The square shape of the second overflow port 11h is useful for the formation of a natural overflow of the vegetable oil Wd of the food waste liquid W. The discharged vegetable oil Wd is stored in the tank T. Therefore, the vegetable oil Wd of the food waste liquid W can be easily separated.

  9 and 10 show a second example of a form for carrying out the food waste liquid treatment apparatus according to the present invention.

  In the second example, auxiliary partition plates 36 and 37 are provided in the filter 3.

  The auxiliary partition plates 36 and 37 of the filter 3 are located in the post-processing chamber Y of the tank body 11 of the storage tank 1, and partially communicate with the post-processing chamber Y in the flow direction of the food waste liquid W at the center. It is partitioned into a chamber Ya and a second chamber Yb. One auxiliary partition plate 36 is formed in such a length that it is inclined downward from the upper end portion of the filter 3 toward the partition plate 35 and does not reach the mesh surface 32. The other auxiliary partition plate 37 is erected in an unreachable state with the upper part from the mesh surface 32 of the filter 3 toward the vicinity of the center of one auxiliary partition plate 36, and the lower part of the auxiliary partition plate 37 is the same as the partition plate 35. Is penetrating through the mesh surface 32 of the.

  According to the second example, in the second chamber Yb of the post-processing chamber Y, the food waste liquid W is maintained in a more static state and cooled by the cooling mechanism 2. Therefore, the animal fat Wb remaining in the food waste liquid W can be separated. By dividing the post-treatment chamber Y into the first chamber Ya and the second chamber Yb, the amount of animal fat Wb separated from the food waste liquid W can be increased by about 5%.

  FIG. 11 shows a third example of an embodiment for carrying out the apparatus for treating food waste liquid according to the present invention.

  In the third example, the small holes 34 are not provided in the side plate portion 31 facing the first overflow port 11e of the filter 3 in the first example, and the rectifying plate 11g of the tank body 11 of the storage tank 1 is omitted. The second overflow port 11h is provided on the side of the tank body 11 of the storage tank 1 so as to be adjacent to the first overflow port 11e.

  According to the third example, the side plate portion 31 facing the first overflow port 11e of the filter 3 replaces the rectifying plate 11g, so that the structure is simplified as compared with the first example.

  This third example can also be applied to the second example.

  FIG. 12 shows a fourth example of an embodiment for carrying out a food waste liquid treatment apparatus according to the present invention.

  In the fourth example, one side plate portion 31 of the filter 3 in the third example is replaced with a partition plate 35, and the portion corresponding to the pretreatment chamber X of the tank body 11 of the storage tank 1 of the other two side plate portions 31 is used. Is omitted.

  According to the third example, the filter 3 can be downsized to facilitate the removal and removal of the animal fat Wb of the food waste liquid W from the tank body 11 of the storage tank 1.

  This fourth example can also be applied to the second example.

  As described above, in addition to the illustrated examples, the storage tank 1 can be formed in a cylindrical shape, an elongated box shape, or the like corresponding to the installation location.

  Furthermore, the cooler unit 21 of the cooling mechanism 2 and the like can be integrated with the storage tank 1 to provide portability.

  Furthermore, it is possible to make the entire filter 3 mesh.

  About the form for implementing the processing apparatus of the food waste liquid which concerns on this invention, when installing in the restaurant which consists of a small and medium-sized ramen shop, the food waste liquid W et al. If the storage volume is set to about 80 liters, sufficient processing capacity can be obtained.

  The food waste liquid treatment apparatus according to the present invention does not require any special operation each time the food waste liquid W is charged, in addition to being installed in a cafeteria, a restaurant kitchen, a lunch kitchen, a food factory, etc. It is also possible to install food waste liquid W by a person who installs it in a room, canteen, etc.

1
Storage tank 11 Tank 11e First overflow port 11h Second overflow port 12 Lid 2 Cooling mechanism 3 Filter 4 Auxiliary cooling mechanism W Food waste liquid Wb Animal fat Wc Liquid part Wd Vegetable oil X Previous Processing chamber Y Post-processing chamber Ya First chamber Yb Second chamber

Claims (5)

Food waste liquid is added and stored as needed, and when the amount of stored food waste liquid exceeds a certain amount, the excess liquid part overflows to the outside, and the pretreatment chamber and food waste liquid on the side where the food waste liquid is charged temperature grease from solidifies the liquid portion of the animal that contains a reservoir in which the post-processing chamber on the side of overflow is partitioned in communication portion at the top, the food waste which has been reserved in the reservoir A food waste liquid treatment apparatus comprising: a cooling mechanism for cooling the food waste liquid up to 2) and an auxiliary cooling mechanism for stirring and cooling the food waste liquid introduced at the bottom of the pretreatment chamber of the storage tank with bubbles .   2. The food waste liquid treatment apparatus according to claim 1, wherein the post-treatment chamber of the storage tank is partitioned into a first chamber and a second chamber that are partially communicated with each other in the flow direction of the liquid portion of the food waste liquid. Waste liquid treatment equipment.   The food waste liquid treatment apparatus according to claim 1 or 2, further comprising a filter that prevents solidified animal fat from being mixed into a liquid portion of the food waste liquid overflowed from the storage tank. Processing equipment.   The food waste liquid treatment apparatus according to claim 3, wherein the filter is detachable from the storage tank and raises the solidified animal fat content of the food waste liquid from the liquid portion when the filter is taken out of the storage tank. Food waste liquid treatment equipment.   In the processing apparatus of the food waste liquid according to any one of claims 1 to 4, the storage tank is a vegetable oil floating on the surface layer of the liquid portion in which the solidified animal fat is removed from the food waste liquid. An apparatus for treating food waste liquid, which is provided with a dedicated overflow port for overflowing food.