JPH05271672A - Apparatus for producing fuel - Google Patents

Abstract

PURPOSE:To provide an apparatus which produces a high-quality fuel from a mixture of a waste edible oil with a waste mineral oil without causing the problem of environmental pollution and thus enables the effective utilization of those waste oils. CONSTITUTION:This apparatus is equipped with a means 11 for mixing a waste edible oil with a waste mineral oil to give an oil mixture, a means 14 for heating the mixture and has a discharge port 16, and an adsorption means 17 which removes impurities from the mixture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel production apparatus for treating edible waste oil and mineral waste oil to produce a fuel. In one aspect thereof, the present invention promotes effective utilization of edible waste oil and mineral waste oil.

[0002]

2. Description of the Related Art Today, various oily foods such as broilers and fried foods are consumed in large quantities, and a large amount of edible waste oil is generated accordingly. However, in reality, there is no suitable means for treating such a large amount of edible waste oil. Edible waste oil is usually left in drums temporarily before disposal.
This drum can may be corroded and waste oil may flow out from the drum, which is a cause of destruction of the living environment.

On the other hand, mineral waste oils used for various purposes such as oil exchange of vehicles, hydraulic pumps, cooling and heating, lubricating oils, insulating oils, cleaning oils, cutting oils, etc., although partially burned, are edible waste oils. As in the case, there is no effective processing method.

As a method of treating edible waste oil, there is a method of using soap materials or feeds, but the waste oil used as a raw material for these is only a part, and is not sufficient as a waste oil treatment method. Most of the waste oil is burned or melted and discarded, but this is not preferable because not only it cannot be effectively utilized but also it is costly and further damages the environment.
Therefore, the treatment of edible waste oil has become a big problem.

The present invention has been made in view of such circumstances, and in order to effectively utilize edible waste oil and mineral waste oil, a high quality fuel which does not cause a problem of environmental pollution and is produced from them is used. It is an object of the present invention to provide a fuel production device to be produced.

[0006]

In order to solve the above-mentioned problems, the present invention has a mixing means for mixing a edible waste oil and a mineral waste oil to form a mixture, and a discharge hole through which steam is discharged. A fuel production apparatus comprising: a heating unit for heating a fuel and an adsorption unit for removing impurities in the mixture.

In this case, since the edible waste oil and the mineral waste oil contain solid matters such as dust, it is preferable to provide a filtering means for filtering them. In this case, it is preferable that the filtering means separately performs the edible waste oil and the mineral waste oil before mixing.

Further, since the ratio of the edible waste oil and the mineral waste oil affects the characteristics of the fuel, it is preferable to provide a detecting means for grasping the ratio. Furthermore, it is preferable to provide a means for filtering the heated mixture and a means for stirring.

[0009]

The edible waste oil is difficult to burn by itself and cannot be used as a fuel. However, in the present invention, the edible waste oil is melt-mixed with the mineral waste oil, so that it can be used as a fuel. Becomes

In this case, the mixture after mixing them is heated by the heating means to evaporate and remove the water content of about 8 to 12% in the edible waste oil and the mineral waste oil, and at the same time, by the adsorption means. Impurities such as sulfur oxides and nitrogen oxides in the waste oil are removed. Therefore, it is possible to produce a fuel of high quality and free from environmental pollution. In this case, the heating temperature is preferably 60 to 140 ° C,
80-120 degreeC is more preferable.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram showing a fuel manufacturing apparatus according to an embodiment of the present invention. In the mineral waste oil tank 1, a mesh 2 is provided at the upper part and a filter material 3 such as a filter paper used for filtering ordinary oil is provided at the lower part, and the mineral waste oil is charged therein from above.

Similarly, the edible waste oil tank 4 is also provided with a mesh 5 and a filter medium 6, into which the edible waste oil is loaded. The flow rate of the waste oil discharged from each tank is grasped by the meters 7 and 8, respectively. Based on the information from these meters 7 and 8, the valve 9
And 10 can be adjusted to adjust the ratio of edible waste oil and mineral waste oil to the desired value.

As the edible waste oil used here,
It is a waste oil used in various foods such as broiler oil and oil used for frying, and includes vegetable oil, animal oil and the like. Mineral waste oil is waste oil of mineral oil used for various purposes such as oil change of vehicles, hydraulic pump, cooling and heating, lubricating oil, insulating oil, cleaning oil, cutting oil, and the like.

As described above, since edible waste oil is difficult to burn by itself, a certain proportion of mineral waste oil is mixed. The proportion of edible waste oil in this case is about 90 to 50%,
-50% is preferable, and 70-50% is especially preferable.

The mineral waste oil and the edible waste oil from the tanks 1 and 4 reach the mixing tank 11 where they are stirred by a stirring blade (not shown) to form a mixture. A pipe 12 is connected to the bottom of the mixing tank 11, and the pipe 12 is connected to the upper surface of the heating container 14. In this case, the mixture from the mixing tank 11 is pumped by the pump 13 into the pipe 1
The inside of 2 is conveyed to the heating container 14. The pipe 12 is provided with a valve 12a.

In the heating container 14, the mixture supplied therein is heated to an appropriate temperature. The heating at this time is performed by the steam supplied to the boiler pipe 15 provided around the heating container 14. Further, an adsorption part 17 is provided on the upper part of the heating container 14, and a large number of adsorbents are provided therein.

Since the adsorbent is alkaline, the oxidized edible waste oil and mineral waste oil are restored to the alkalinity of the original oil, and the adsorbability allows the water content in the edible waste oil and the mineral waste oil to be 5% to 6%. %. By heating the residual water content and the alkalized waste oil, it is possible to easily perform the melting of the edible waste oil and the mineral waste oil, which were conventionally difficult to melt, and to improve the combustion effect of the fuel according to the present invention. Can be increased.

Further, a steam cylinder 16 is provided on the upper surface of the heating container 14, from which steam is evaporated. In this case, it is preferable that an adsorbent is also provided inside the vapor cylinder 16 to surely remove impurities from the vapor that vaporizes. Sulfur oxides and nitrogen oxides are removed from the exhausted vapor by the adsorbent and do not cause environmental pollution.

As the adsorbent used here, an adsorbent containing animal bone powder as a main active ingredient is used. Such an adsorbent is obtained by mixing animal bone powder, which is an active ingredient, with a binder and, if necessary, other additives, and molding the mixture into granules or powder granules.
It is formed by drying and further firing.

Animal bone meal used for such adsorbents is bone that has been mostly discarded in the past, such as cattle, horses, etc.
The bones of animals mainly composed of hard bones such as sheep are adopted. Raw bones of these animals are treated, for example, as follows.

[0021] Raw bone is cut into a size that is easily fired, and then placed in a pressure cooker at about 200 to 400 ° C for about 90 minutes.
Boil for about a minute. The bone is then placed in a baking oven and
It is baked at about 0 to 1100 ° C. for about 60 to 180 minutes, and then cooled in the furnace for about 60 minutes to reach room temperature or a temperature close thereto.

The produced bone meal contains gelatin other than bone components,
If organic substances such as fats, proteins, and glues remain, they will cause oxidative decay, so it is necessary to remove them reliably.However, the boiling process causes them to adhere not only to the outside but also to the pores. Organic matter can be largely separated and removed from bone. The remaining organic substances can be completely removed by passing through the above firing step, and at the same time, the humidity (moisture) in the bone can be reduced to several% or less, and to 0% if the conditions are appropriate. You can

Under the above-mentioned firing conditions, the bone is whitened and maintains the original tissue state having numerous pores. After firing and cooling as described above, the bone is crushed and powdered for 20 to 20 minutes.
Bone meal of 200 mesh, preferably 50 to 100 mesh is used.

In the case of raw bone, such a bone meal yields a yield of about 40% by weight with respect to the raw raw bone. The particles are mainly composed of calcium (about 33%) and phosphorus (about 16.
7%), barium (about 1.03%), sodium (about 0.76% by weight), sulfur (about 0.64%), and also magnesium, potassium, chlorine, amine, iron, etc. There are innumerable minute pores communicating with each other on the surface and inside. And, the bone meal produced in this way is alkaline.

The binder may be any binder as long as it serves as a binder for forming animal bone powder in the form of granules or granules. For example, bentonite, acid clay, activated clay, kaolin clay, sericite, pyrophyllite, refractory clay. , Montmorillonite, alumina and the like. In addition to the binder, other fillers and additives may be added if necessary.

The proportion of animal bone powder in the adsorbent is not particularly limited as long as it has an adsorbing action, but considering the adsorption rate,
Those with a high proportion of animal bone meal are preferred. The composition having a high adsorption rate includes, for example, animal bone powder of 50 to 80% by weight.

The adsorbent is in the form of granules or powder as described above, but its size may be such that it can be easily separated from the waste oil, and is usually 2 to 30 mm, preferably 5 to 20 m.
m. Moisture and impurities are removed as described above by the action of the adsorbent and the heating by the heating container 14. Especially, the content of water is 1 to 6%, preferably 1%.
Evaporate to ~ 4%, more preferably 2-3%.

The mixture from which water and impurities have been removed in this way can be used as a fuel, but in order to further enhance the combustion effect of the fuel, the mixture from the heating vessel 14 is filtered again to further remove impurities. Preferably.

In this example, the filter hopper 20 is provided, and the mixture from the heating container 14 is filtered again by the filter media 21 and 22 provided in the filter hopper 20. Filter material 21,
A normal oil filter (filter paper) is preferably used as 22.

At this time, the mixture in the heating container 14 is conveyed through the pipe 18 by the pump 19 to the filtration hopper 20.
Leading to. The reference numeral 18a is a valve. The mixture filtered by the filter hopper 20 is stored as a fuel in the product tank 23, and is discharged from the tank 23 by opening the valve 24. In this case, the fuel in the product tank 23 is preferably agitated.

The filter media 21 and 22 may be formed by molding the same material as the above-mentioned adsorbent. For example, animal bone powder is mixed with a binder and, if necessary, other additives to form a mixture containing, for example, 50 to 80% by weight of animal bone powder, which is formed into granules or powder granules, dried and then fired. Can be used as the filter media 21 and 22. In this case, the acid value of the filtrate, that is, the fuel can be reduced to 1 or less.

According to such a fuel producing apparatus, impurities and water can be effectively removed after mixing the edible waste oil and the mineral waste oil, so that a fuel of high quality and free from environmental pollution is produced. be able to.

Next, the results of actual fuel production using this apparatus will be described. 3 liters of edible waste oil used for frying and 3 liters of mineral waste oil after the oil change of the car were collected and fuel was produced using the apparatus of FIG. First, these were charged into tanks 1 and 4, and mixed in a mixing tank 11 to obtain a mixture.

This mixture was supplied to the heating vessel 14, and the mixture was heated to 100 ° C. and mixed and stirred with a stirrer for 35 minutes before and after. At this time, the adsorbent 17 of the heating container 14 was loaded with 20 adsorbents made from animal bones. Further, a mesh was provided inside the vapor cylinder 16 and the adsorbent was also charged therein. Almost no nitrogen oxide was detected in the steam discharged from the steam cylinder 16.

The mixture thus mixed and stirred is supplied to the filter hopper 20 and filtered again, and the product tank 2
Recovered via 3. When the recovered liquid was ignited by a normal gas ignition burner, it burned, and almost no sulfur oxides or nitrogen oxides were generated.

[0036]

According to the present invention, the edible waste oil, which cannot be used alone as a fuel, is mixed with the mineral waste oil to be used as the fuel. Therefore, it is possible to effectively use these. Further, the heating means can evaporate and remove water contained in the edible waste oil and the mineral waste oil, and the adsorbing means removes impurities such as sulfur oxides and nitrogen oxides in the waste oil. Therefore, it is possible to produce a fuel of high quality and free from environmental pollution.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a fuel manufacturing apparatus according to an embodiment of the present invention.

[Explanation of symbols]

 1,4 Waste oil tank 2,5 Mesh 3,6,21,22 Filter media 7,8 Meter 11 Mixing vessel 14 Heating vessel 16 Steam cylinder 17 Adsorption part 20 Filtration hopper 23 Product tank

Claims (7)

[Claims] 1. Mixing means for mixing a edible waste oil and a mineral waste oil to form a mixture, a heating means for heating the mixture having a discharge hole through which steam is discharged, and impurities in the mixture are removed. And an adsorbing means for operating the fuel production apparatus. 2. The fuel production apparatus according to claim 1, further comprising means for filtering edible waste oil prior to mixing by the mixing means. 3. The fuel production apparatus according to claim 1, further comprising means for filtering mineral waste oil prior to mixing by the mixing means. 4. The fuel production apparatus according to claim 1, further comprising detection means for detecting a ratio of edible waste oil and mineral waste oil. 5. The fuel production apparatus according to claim 1, wherein the adsorption means has an adsorbent mainly composed of animal bone powder. 6. The fuel production apparatus according to claim 1, wherein the adsorption means has an adsorbent disposed in the discharge hole. 7. The fuel production apparatus according to claim 1, further comprising a filtering unit that further filters the mixture after impurities are removed by the adsorbing unit.