JP4491526B2 - The above apparatus combined with a simple waste oil reforming / fuelizing apparatus and combustion apparatus - Google Patents

Description

  The present invention uses an emulsion liquid fuel as a means for converting the waste oil into a substantially mechanical process, and separates and removes coarse solid impurities that hinder the emulsification from the waste oil. The present invention relates to an apparatus for producing an emulsion liquid fuel that can be made into an emulsion liquid fuel by miniaturization, improves the usability of waste oil as fuel, and enables the production of an emulsion liquid fuel with stable combustion performance.

In 1992, the production of biodiesel fuel (BDF), an alternative to diesel oil, from unused vegetable oil (virgin oil) was researched and developed in European countries. In Germany, tax benefits such as exemption from oil tax, surplus farmland It is rapidly spreading due to the agricultural policy of renewal incentives and the rapid response of the automobile industry to biodiesel fuel. In 2000, 800,000 tons of biodiesel fuel was produced annually in the EU alone. Yes.
Biodiesel fuel (BDF) is a product obtained by transesterifying triglyceride, which is a component of vegetable oil, with methanol, and uses it as a light oil alternative fuel for diesel engines such as automobiles, especially in France and Germany in 1996. On the other hand, industrial scale production was started.

It is important that waste cooking oil can be accumulated. The main component is vegetable oil, which can be converted to biodiesel fuel if impurities are removed. Therefore, the application of the biodiesel fuel technology to waste edible oil has been studied and contributes to the prevention of global warming in Japan. This has been implemented by some local governments and environmental NPOs as environmental measures. However, in order to make the use of edible edible oil suitable for an economic base, it is important that the edible edible oil can be accumulated in large quantities so as to be economical.
Considering this point, steady research has been conducted to investigate the current state of waste cooking oil. (Yamane, 2002; Biomass fuels for diesel engines and trends in their use, Report on FY2013, Biomass Utilization Study Group) According to a report in Japan, the amount of waste cooking oil generated from households in Japan is 200 to 300,000 tons / There is about 250,000 tons / year of waste cooking oil generated by businesses. About 80% of the waste cooking oil generated by businesses is said to have been recovered, and its uses include feed additives, fatty acids, paints, inks, etc. As a result, surplus waste cooking oil is generated. In addition, the recovery of waste cooking oil from small businesses such as restaurants and tofu shops and households is not progressing. From the standpoint of performance, it is difficult to recover the amount of waste edible oil commensurate with the introduction of a biodiesel fuel (BDF) conversion device, and it is difficult to treat wastewater containing glycerin, methanol, caustic potash and the like as by-products. In order to estimate the amount of waste cooking oil generated from households more accurately, the actual amount of waste cooking oil generated from one household in Mino City was actually investigated, and a result of 10.3 liters / year was obtained. Based on this, the amount generated from households nationwide was estimated to reach a considerable amount of 346,000 tons / year.
The extent to which the estimated amount of occurrence from the household can be actually recovered depends on whether there is an economically suitable application using the recovered waste cooking oil.
As a technology in line with the above-mentioned economic application, it is considered to produce emulsion fuel from waste cooking oil and mineral oil by physical and mechanical production methods rather than chemical fuel production methods such as biodiesel fuel (BDF) conversion. As a result, we have been developing the use of diesel fuel and boiler fuel.
In order to promote the collection of waste cooking oil from small businesses such as restaurants and tofu shops and households, the emulsion fueling device is introduced and made easy to use. It is important to develop a device that is simple, easy to maintain, and easy to move. If such a device is developed, it will be possible to introduce it into small local governments, companies, NPOs, etc., and it will be possible to use waste edible oil as a business trip fuel and joint use of the device. Is considered to proceed rapidly.

  Various methods for using waste cooking oil as fuel for burners such as diesel engines, incinerators, boilers, etc. have been proposed and implemented in some parts of Japan. A method is generally used in which oil is reacted with methanol using a catalyst such as caustic potash to produce and use BDF (fatty acid methyl ester). The difficulty of this method is that it takes a day or two to obtain the final product because it is a chemical reaction, and it is difficult to treat wastewater containing by-product glycerin, methanol and caustic potash. As a result, it is difficult to obtain profits commensurate with capital investment. On the other hand, raw cooking of waste oil, mixed combustion with heavy oil, etc. are performed as fuel for burners such as incinerators and boilers, etc., but there are fuel conversion technologies that cause clogging of nozzles due to solid impurities etc. and stable combustion. Since it is not sufficient, soot is generated due to unstable combustion, and there is a problem of fouling in the furnace, which is not very popular.

  On the other hand, it is known that NOx and dust in a combustion furnace such as a boiler can be reduced by emulsifying and dispersing water in fuel oil to form an emulsion fuel (see Patent Document 1). At this time, it is explained that emulsification so that water droplets in the produced emulsion fuel are uniformly distributed in the fuel within a certain particle size distribution is important for improving the combustion performance.

Japanese Patent Laid-Open No. 9-286993, claims.

  The problem of the present invention is that it is possible to use waste oil with a small amount of emissions from individual sources such as edible oil from small businesses and households, and the performance of the fuel oil with improved combustibility. It is to provide an apparatus capable of producing a good emulsified liquid fuel. Therefore, the present inventor inhibits stable emulsification from waste oil, removes solids that cause clogging of fuel injection nozzles and worsen combustibility, and makes stable emulsion liquid fuel substantially only by mechanical processing steps. Filtration that produces a stable emulsion liquid fuel that constitutes solid content removal means and liquid fuel emulsification process, considering that it is possible to design an emulsion liquid fuel production apparatus that can produce a relatively compact apparatus. The composition of the emulsion liquid fuel blending / mixing tank and the combination thereof constituting the vessel, the emulsifying / dispersing device and the circulating emulsion liquid fueling system were devised. In the above device, using a precision filter in which a nonwoven fabric filter capable of removing solid impurities exceeding 10 μm in diameter is detachably disposed on the surface of a notch wire filter as a filter disposed in a circulating emulsion liquid fuel system pipeline, A fixed line mixer or electric line mixer fixedly arranged in the pipeline and a return side tip of the circulating pipeline to the blending / mixing tank extend to near the bottom of the tank to mix the circulating emulsion liquid fuel. The above-mentioned problem could be solved by adopting a configuration in which the liquid fuel is installed so as to be blown up and stirred into the emulsion liquid fuel contained in the container.

  The first of the present invention is (1) an apparatus for producing an emulsion liquid fuel from waste oil, and a sieve on which a filter medium selected from nonwoven fabric and paper filter media that captures insoluble components having a diameter of 20 to 100 μm can be placed. The waste oil supply unit provided with a filter, a mineral oil supply unit mixed with the waste oil to form an emulsion liquid fuel, and an additive component supply unit for improving the emulsion liquid fuel provided as needed, each supply A blending / mixing tank that contains waste oil, mineral oil, and emulsion liquid fuel conversion improvement additive components supplied from the section, and a diameter of less than 20 μm that is connected to and disposed in the blending / mixing tank and inhibits emulsion liquid fuel conversion from the storage components Microfiltration with a filter medium selected on the surface of a notch wire filter selected from non-woven and paper filter media capable of removing components exceeding 8μm And a pipeline system in which a fixed or electric emulsification / dispersion device is disposed, and the pipeline system mixes and mixes all or part of the emulsified liquid fuel via the microfilter and the emulsification / dispersion device. A pipeline that circulates and supplies to the tank is provided, and the tip of the return side of the circulation pipeline to the blending / mixing tank extends to near the bottom of the tank to accommodate the circulating emulsified liquid fuel in the blending / mixing tank The circulating liquid fuel is installed in the emulsified liquid fuel so as to be blown up and stirred, and at least the side of supplying the components contained in the blending / mixing tank to the pipeline system is at least the blending / mixing tank. An apparatus for producing an emulsion liquid fuel, characterized in that it is installed in the lower part. Preferably, (2) a sieving filter in which the blending / mixing tank can place a filter medium selected from a nonwoven fabric made of paper and a paper filter medium that captures a solid content of 20 to 100 μm on the sieve surface. It is divided into a provided waste oil metering / accommodating unit with a liquid level meter as the waste oil supply unit, and a mineral oil measuring / accommodating unit with a liquid level meter as a mineral oil supply unit mixed with the waste oil to form an emulsion liquid fuel. When the circulating emulsion liquid fuel treatment is performed, a communication pipe is provided to allow the circulating emulsified liquid fuel in the storage section where the return side tip of the circulation pipeline is installed to circulate to the other storage section. The emulsion liquid as described in (1) above, wherein the pipeline for supplying the components to the circulation pipeline system is installed in each lower part of each container of the blending / mixing tank More preferably, (3) an emulsion liquid fuel component comprising (3) waste oil, a mineral oil mixed with the waste oil to form an emulsion liquid fuel, and the emulsion fuel improving additive component. A fine filter with a filter medium selected on the surface of a notch wire filter and a fixed type or electric type filter medium selected from non-woven fabric and paper filter media capable of removing components less than 20 μm in diameter and exceeding 8 μm which inhibit emulsion liquid fuel formation (1) or (2) above, wherein a gear pump arranged in the upstream portion of the microfilter is used as a liquid feeding means for supplying and circulating a pipeline system in which an emulsifying / dispersing device is arranged. And more preferably (4) as an emulsifying / dispersing device A device for producing an emulsion liquid fuel as described in (1), (2) or (3) above, wherein a fixed line mixer or a small electric line mixer in which the gasification / dispersion member is fixedly arranged in the pipe is used. More preferably, (5) 8 μm in diameter of less than 20 μm, which inhibits the formation of an emulsion liquid fuel from an emulsion liquid fuel component comprising waste oil, a mineral oil mixed with the waste oil to form an emulsion liquid fuel, and the emulsion fuel improving additive component A microfilter for continuously removing insoluble components exceeding 10 μm forms a fine filter clearance opening of 10 to 50 μm for a filtering medium selected from nonwoven and paper filtering media capable of removing components exceeding 20 μm and exceeding 8 μm Notch wire filter constructed by winding stainless steel notch wire Wherein it characterized by comprising a fixed structure wound around a surface (1) to an apparatus for producing an emulsion liquid fuel as claimed in any one of (4).

  According to a second aspect of the present invention, the pipeline system in which the microfilter and the emulsifying / dispersing device of the apparatus for producing the emulsified liquid fuel according to any one of (1) to (5) are disposed is an emulsified liquid fuel. An emulsion liquid fuel production apparatus characterized in that waste oil is directly connected to a combustion apparatus using at least a liquid fuel as a fuel.

  As an effect of the invention, from 40 to 60 L of waste oil, it is possible to reduce NOx and soot in exhaust gas, and a movable compact apparatus capable of producing an emulsion liquid fuel with improved combustibility on a relatively small scale of 200 L, and It can be mentioned that an apparatus capable of automatically and continuously supplying the emulsion liquid fuel at a rate of 500 L / hour in conjunction with a combustion apparatus such as a boiler can be provided.

The present invention is an emulsion liquid fuel conversion apparatus capable of producing an emulsion liquid fuel that is stable and has good combustion performance from waste oil that has solved the above-described problems. In addition, by adjusting the blending of waste oil, mineral oil and water and emulsifier added as needed, fuel for diesel engines and burners can be easily and economically produced from waste oil with a prescription according to the application. Made it possible.
A. One feature of this apparatus is that it can remove relatively large solids contained in waste oil, such as solids that do not pass 100 mesh (particle size 150 μm or more) with good operability, and if necessary, non-woven fabric By placing a filter material made of paper or paper on the sieve part, it has a waste oil filtration mechanism with a sieve structure that can capture solids that do not pass through a mesh having a diameter of 20 to 100 μm depending on the selection of the filter medium. This waste oil filtration mechanism is provided in the upper part of the tank which accommodates the waste oil which permeate | transmitted the said waste oil filtration mechanism which comprises a waste oil supply part. Here, the nonwoven fabric includes those produced by a dry method and a wet method.
The sieving part is a rectangular cylindrical structure whose bottom part is composed of a square rigid mesh on which the nonwoven fabric or paper filter medium can be placed, and which can be covered with a lid on the upper part. Is a structure in which the filter medium can be tightly fixed on a rigid mesh, and when the filter medium is replaced, a drop-type fixing frame that can be removed from the rectangular cylindrical structure can be inserted. The rectangular tubular structure can be attached to and detached from the waste oil tank without a tool, but has a watertight structure in which rainwater does not enter even outdoors.
Through the waste oil filtration mechanism, the waste oil tank can be filled with the crude edible oil from a pot, directly from a 20 L can or a plastic tank, or from a drum can or the like using a portable pump or the like.

B. The second feature of the present invention is that the waste oil, the mineral oil that is mixed with the waste oil to form an emulsion liquid fuel, and the mixed liquid that forms the emulsion liquid fuel comprising the emulsion fuel improving additive component are more efficiently and uniformly emulsified.・ Emulsified liquid fuel mixed with waste oil and waste oil, with emulsification / dispersion equipment consisting of a fixed line mixer or electric line mixer fixed in the pipeline, which can be dispersed, arranged in the circulation pipeline system A non-woven or paper filter medium capable of precisely removing solid impurities exceeding 10 μm in diameter, which inhibits the formation of emulsion liquid fuel, from the emulsion liquid fuel component comprising the emulsion oil improving additive component and the notched wire filter surface Combined with the microfilter placed in the above-mentioned circulation pipeline system In using a gear pump arranged in the upstream portion of the fine filter as oil feeding means for feeding and circulation.
The advantage of combining the non-woven or paper filter medium with the notch wire filter is that the notch wire filter has a smooth surface and the non-woven or paper filter medium having a relatively low strength is compared with a gear pump. This is because it can be stably maintained even under high pressure. As a result, it was possible to design a small and simple emulsion liquid fuel conversion device, and it was possible to introduce a store, a small factory, an NPO, etc., which are owned by an individual, relatively easily. In addition, it is possible to provide a unit that can be operated automatically without including operations that cause relatively poor operability such as chemical reagents and heating, and can provide an apparatus that is easy to operate and easy to maintain. In addition, an apparatus capable of operating the mechanical process with a single-phase 100 V power source could be designed. Furthermore, in the case where the process apparatus is integrated, the weight can be about 300 to 700 kg, which can be handled by a forklift or the like and can be moved on a light truck or the like. . In addition, this device can be operated unattended in conjunction with the operation of a boiler or the like.
In addition, in the method of using a non-woven or paper filter medium in combination with a notch wire filter and circulating an emulsified liquid fuel, the insoluble component having a diameter of 8 μm used cannot be removed with an impermeable filter medium. It was confirmed that fine particles considered to be possible, for example, insoluble components of 3 μm or less can be removed.

  C, waste oil, mineral oil mixed with the waste oil to form an emulsion liquid fuel, and a mixed liquid that forms an emulsion liquid fuel composed of emulsion fuel improving additive components blended as necessary for more efficient uniform emulsification and dispersion For various diesel engines that use diesel oil or A heavy oil with improved stability and flammability by adopting an emulsifying / dispersing device consisting of a fixed line mixer or electric line mixer fixedly arranged in the pipeline It became possible to manufacture the fuel. Furthermore, the emulsion liquid fuel production apparatus provided in the present invention can also produce various burner fuels using kerosene or A heavy oil as fuel.

D. As a fixed type line mixer fixedly arranged in the circulation pipeline, a mushroom-like projecting body that is formed on the downstream side of a guide body that guides the fluid in the pipe to the inner wall side of the pipe and constitutes a collision body with the mixed fluid A static mixer, for example, an OHR mixer manufactured by OHR Fluid Engineering Laboratory, disposed at an appropriate interval in the circumferential direction and the flow direction of the inner wall can be mentioned as a preferable one.
Preferred examples of the electric line mixer include an electric line mixer having a turbine that is rotated by a motor that applies shearing force and suction input on the suction side, such as a pipeline homomixer manufactured by Tokushu Kika Kogyo Co., Ltd.

  E. The notch wire filter constituting the precision filter in which the non-woven fabric or paper filter medium is detachably disposed on the surface of the notch wire filter is notch wire made of stainless steel such as SUS-304 or SUS-316L, or monel or titanium. And a cylinder provided with fine holes of 10 to 50 μm is used as a filtration element. If necessary, backwashing is possible. However, backwashing can be substantially eliminated by employing a configuration in which the filter medium is combined with a finer non-woven fabric or the like as in the present invention. This microfilter should just select the 10-50 micrometers open notch wire filter according to the use of produced fuel. By incorporating a plurality of filter elements, it is possible to switch to continuous operation and to switch the produced fuel. In addition, by using a filter medium such as a nonwoven fabric wrapped around a notch wire filter, particles of 10 μm or less can be captured, and by removing the filter medium, the captured solid matter can be easily removed. Is as described above.

  F. As waste oil used to make fuel with this device, rapeseed oil, soybean oil and other liquid edible oils at room temperature are optimal, but some of them are palm oil, animal oil, etc. that solidify at low temperature May be included. Waste edible oil that has deteriorated at high temperatures and has a high acid value can also be used. Waste cooking oil that solidifies at room temperature can be used if the application is limited to a burner by attaching a heating device. In addition, waste oil such as lubricating oil, hydraulic oil, and working oil can be used if the application is limited. Since these waste oils contain components that become harmful gases by combustion such as sulfur and nitrogen, they are used as fuel for combustion furnaces equipped with exhaust gas treatment devices such as incinerators.

Examples of mineral oil mixed with G and waste oil include kerosene, light oil, and A heavy oil. It is also possible to use various alcohols instead of mineral oil.
When using mineral oil, the base oil type is selected according to the use of the produced fuel and the mixing ratio of the waste oil is set to 10 to 50%, but the judgment is made based on the analysis value of the produced fuel, the use, and the equipment specifications. Considering economy and stability, the mixing ratio of waste oil is optimally 20 to 30%.
When alcohol is used, waste alcohol or fermented alcohol that is not suitable for eating and drinking is used from the economical viewpoint. These are mostly a mixture with water, and an emulsifier is added to make an emulsion fuel. The mixing ratio of the waste oil is determined by the analysis value of the generated fuel, the application, and the equipment specifications, but 20 to 80% is appropriate.

H. There are two methods, batch type and continuous type, for converting waste oil into fuel according to the present invention. The batch type can be operated with a waste oil treatment amount of 40 to 60 L per one time and a generated fuel amount of less than 200 L, and can be easily used in a state where waste oil can only be collected on a small scale. By the way, in the Fire Service Act, notification is required for scales of 200L or more. The blending / mixing tank has a waste oil metering / storing unit with a liquid level gauge as the waste oil supply unit, and a mineral oil metering / storing unit with a liquid level meter as a mineral oil supply unit mixed with the waste oil to form an emulsion liquid fuel. In the case of designing to such a structure, when the circulating emulsion liquid fuel is processed, the circulating emulsion liquid fuel overflows, and a structure having a communication pipe in which both accommodating portions form a circulation system is formed. It is preferable to design.
In the case of the divided structure, each of the accommodating portions can have a function as a measuring instrument for charging a predetermined amount of waste oil and mineral oil. Waste oil is charged through the sieve filter having the above-described structure disposed in the upper part of the waste oil storage tank. Designed to provide a valve in the communication pipe between the housing parts, open the valve, start a pump such as a gear pump, and circulate a circulation line in which an emulsifying / dispersing device and a precision filter are arranged for about one hour. It is preferable to do. When adding an emulsifier or the like, add it to any of the measuring tanks at the start of circulation. The produced fuel is discharged to the container through the microfilter. As a design in which other liquids such as waste oil and mineral oil can be metered before charging, the tank divided into two parts as described above may not be used. However, the components that form the emulsion liquid fuel that is metered and supplied are designed to be supplied to the tank that constitutes the circulation system that is blown up and stirred by the emulsified liquid fuel that is circulated from the return side of the circulation pipeline. Is preferred.

  The I, continuous type is used when it is desired to obtain a large amount of waste oil treated and produced fuel in a short time, or when unattended operation is desired in conjunction with a boiler or the like. 500 L / hr of fuel can be produced, and the capacity can be freely designed depending on the selection of the emulsifying / dispersing device and the microfilter. Tanks for waste oil and mineral oil are required, and the required amount is charged before the fueling device is operated. The waste oil is charged by rough filtration through a sieve filter or the like. When the automatic operation switch is turned on, the waste oil and the mineral oil are joined by the respective feed pumps through the flowmeters, filtered by the microfilter and entered the circulation tank. Each pump is adjusted in flow rate by an inverter. The mixed oil in the circulation tank is constantly circulated by a circulation pump through a pipeline in which an emulsifying / dispersing device is arranged, and a part of the oil is discharged to a boiler or the like as generated fuel. The supply pumps for waste oil and mineral oil start and stop repeatedly according to the amount of liquid in the circulation tank.

  Various embodiments of the emulsion liquid fuel production apparatus of the present invention will be described below with reference to FIGS. 1 to 4, and the parts constituting each of the apparatuses, particularly the microfilter of the characteristic part of the present invention, and dispersion / emulsification Details of the apparatus will be described with reference to FIGS. Further, Tables 1 to 12 describe the combustion characteristics of the emulsified liquid fuel produced using the above-mentioned apparatus in comparison with commercially available light oil and the like.

  FIG. 1 shows a flow chart of an example in which a fixed line homomixer SME (for example, FIG. 8) is used in the batch type emulsification / dispersion apparatus of the present invention. In this device, the operator uses an oil feeder such as a portable pump directly from a cooking pan or the like, from a 20 L can or a plastic tank for small-scale waste oil recovery, or from a relatively large-scale recovery drum can, etc. Waste oil WO is put into the SF (FIGS. 5 and 6). The waste oil is filtered through, for example, a 100 mesh (removal of components having a diameter of 150 μm or more) sieve at the bottom of the filter SF, and is stored on the waste oil supply side of the blending / mixing tank MT. In order to reduce the load of the microfilter, etc., the sieving section is provided with a non-woven fabric or paper filter medium (FIGS. 5 and 6) FS capable of capturing solids having a diameter of 20 to 100 μm that does not pass through the mesh. Can be placed. The filter medium is designed so that it can be closely attached to and fixed to the sieving section with a drop type fixing frame (FIGS. 5 and 6) FF, and its use can reduce the load on the microfilter NWF (for example, FIG. 7). For example, when the blending / mixing tank MT is designed as a 200L emulsion liquid fuel production system, 40L is used when the waste oil mixing ratio is 20%, and 60L of waste oil is mixed / mixed when 30%. Place in the waste oil supply side of the tank MT. Measure with the level gauge LI attached to the waste oil supply side.

On the other hand, as for the mineral oil PO, 160 L is added to the mineral oil supply side of the blending / mixing tank MT when the mixing ratio of waste oil is 20% and 160 L when the mixing ratio is 30%. Measure with the level gauge LI attached to the mineral oil supply unit. When adding a small amount of water, emulsifier, etc., the required amount is measured in advance in a container and supplied to the waste oil supply unit side of the blending / mixing tank MT.
After metering and charging of the raw material according to the desired emulsion liquid fuel, the drain valve V-1 on the waste oil supply unit side, the valve V-3 of the communication pipe between the two supply units, the bypass valve V- of the microfilter NWF 5 and the valve V-6 of the return pipe to the mineral oil supply part side of the mixing / mixing tank MT of the circulation processing line are opened, and the switch of the circulation pump CP (gear pump) is started. As a result, all the liquid in the blending / mixing tank MT is circulated through the route on the waste oil supply unit side → circulation pump CP → microfilter NWF → fixed line homomixer SME → mineral oil supply unit side → waste oil supply unit side. Start. The circulation pump CP can freely change the flow rate by operating the inverter in the operation panel. However, during the circulation operation, the flow rate is about 80% of the maximum scale (about 1,500 L / Hr). The circulating liquid is rotated about 7 times in one hour circulation, during which emulsification / dispersion by the fixed line homomixer SME and filtration by the microfilter NWF are performed. The return pipe to the mineral oil supply section side of the circulation line is inserted to the bottom of the tank, and stirring and homogenization are performed in the tank. When the viscosity of the waste oil is extremely high during operation in the severe winter season, before opening the valve V-6, only the valves V-1, V-2, V-3 and the bottom return valve V-4 on the waste oil supply side Is opened, and the circulation pump CP is operated for 3 to 5 minutes, the mineral oil on the side of the mineral oil supply unit is made to flow back to the waste oil supply unit side, then the valve V-6 is opened and the valves V-2 and V-4 are closed. When the operation is switched to the circulation operation, smooth circulation processing is performed.
In about 1 hour of the circulation process, all the liquids on the waste oil supply unit side and the mineral oil supply unit side in the blending / mixing tank MT become a uniform emulsion liquefied fuel. After the operation of the microfilter NWF by closing the bypass valve V-5 for 3 to 5 minutes and then opening the product fuel discharge valve V-7, the product fuel FO completely microfiltered is discharged. The discharge speed is arbitrarily adjusted by adjusting the opening degree of the valve V-6 or adjusting the inverter of the circulation pump CP. The extraction valve V-2 on the mineral oil supply side is also opened, and the product emulsified fuel in the compounding / mixing tank MT is extracted as completely as possible.

FIG. 2 is another example of the batch type of the present invention, and shows a flow chart when an electric line homomixer DME (FIG. 9) is used in the emulsification / dispersion apparatus. This apparatus is obtained by replacing the fixed line homomixer SME in the examples of the above [0020] to [0022] with an electric line homomixer DME, and the operation operation other than the operation of the electric line homomixer DME is the above [0020]. It is the same as the example of [0022]. This device is used as a more effective emulsification / dispersion device when water that is difficult to dissolve is added to waste oil WO or mineral oil PO to produce an emulsified fuel. When water is added, if about 0.1% of an emulsifier is further added, the storage stability of the emulsified fuel is improved. As the emulsifier, those known in the art can be used.
The electric line homomixer DME can change the turbine rotation speed in the range of 1,000 to 9,000 rpm by adjusting the inverter in the operation panel, but it is about 80% of the maximum scale during normal circulation processing operation. Is set to a rotational speed of 7,000 to 8,000 rpm.
The operator of this apparatus performs the same operation as in the above [0020] example, but the electric line homomixer is started after the circulation pump CP is started and stopped before the circulation pump is stopped to avoid idling. It is necessary to pay attention to such as.

FIG. 3 shows an example of a continuous type of the present invention. In this example, a flow diagram of an example in which a fixed line homomixer SME (FIG. 8) is used as an emulsification / dispersion device is shown. The operator of this apparatus puts the collected waste oil WO into the waste oil filter SF attached to the waste oil supply tank WOT directly or using an oil feeder such as a pump in the same manner as in the batch type. The waste oil is filtered through a 100 mesh (diameter 150 μm) sieve portion at the bottom of the filter SF and enters the waste oil supply tank WOT. If necessary, a non-woven fabric or paper filter medium FS (FIGS. 5 and 6) capable of capturing solids that do not pass through a mesh having a diameter of 20 to 100 μm is placed on the sieving portion. The filter medium can be brought into close contact with and fixed to the sieving portion by a drop-type fixing frame FF (FIGS. 5 and 6), and the use of the filter medium can reduce the load on the microfilter NWF. The waste oil supply tank WOT can be changed to any capacity as required. Although water mixed in the waste oil may accumulate at the bottom of the waste oil supply tank, it can be removed by being removed from the drain nozzle at the bottom.
On the other hand, the mineral oil PO to be mixed with the waste oil is supplied to a mineral oil supply line of the present apparatus from a separate storage tank.

The operator of this apparatus is a mineral oil supply line inlet valve V-1, a waste oil supply tank source valve V-2, a blending / mixing tank (circulation processing oil tank) MT inlet valve V-3, and a source valve V- at the bottom of the tank. 5. Open the fine filter inlet valve V-6, the outlet valve V-7, the valve V-9 of the return pipe to the blending / mixing tank MT of the circulation processing line, and set the switch on the operation panel to “automatic operation”. To match. Mineral oil is supplied to the blending / mixing tank MT via the flow meter FI (1) by the mineral oil supply pump POP (gear pump (1)). At the same time, the waste oil is joined to the mineral oil line by the waste oil supply pump POP (gear pump (2)) via the flow meter FI (2) and supplied to the blending / mixing tank MT. In the compounding / mixing tank MT, the mixed fuel inside is agitated and homogenized by the liquid ejected from the pipe inserted to the bottom of the tank, and passes through the microfilter NWF and the fixed line homomixer SME by the circulation pump CP. The mixture is again returned to the blending / mixing tank MT, and emulsification / dispersion and microfiltration are performed. The flow rate of waste oil and mineral oil supplied to the blending / mixing tank MT can be changed according to the inverter settings of the mineral oil supply pump POP and the waste oil supply pump WOP. Therefore, the blending ratio should be in the range of 10% to 90%. I can do it. It is appropriate to set the mixing ratio of waste oil to 20% to 30%. When adding a trace amount of water, an emulsifier, etc., it adds and mixes beforehand with other liquids, such as mineral oil, or provides another injection line in parallel with a mineral oil supply line.
During the “automatic operation”, the circulation is continued, and the amount of liquid in the blending / mixing tank MT is automatically kept within the set range by the liquid level switch LS. When the liquid level reaches the upper limit, the mineral oil supply pump POP and the waste oil supply pump WOP automatically stop. When the product emulsified fuel discharge line outlet valve V-10 to the product container or the combustion apparatus is opened, the product fuel is discharged according to the request of the discharge destination. When the amount of liquid in the blending / mixing tank MT reaches the lower limit of the liquid level switch, the mineral oil supply pump POP and the waste oil supply pump WOP are automatically restarted, and the supply of waste oil and mineral oil is resumed. The product discharge amount of the small simple device is 500 L / Hr, but the device capacity can be increased as necessary.

FIG. 4 shows a flow diagram of an example in which an electric line homomixer (FIG. 9) is used as an emulsification / dispersing device as a continuous example of the present invention. This apparatus is obtained by replacing the fixed line homomixer in the examples [0024] to [0025] with an electric line homomixer, and the operation is the same as in the examples [0024] to [0025]. This apparatus is used as a more effective emulsification / dispersion apparatus when water that is hardly dissolved in waste oil or mineral oil is added to produce an emulsified fuel. When water is added, if about 0.1% of an emulsifier is further added, the storage stability of the emulsified fuel is improved. The electric line homomixer can change the rotational speed of the turbine arbitrarily in the range of 1,000 to 9,000 rpm by an inverter, but during normal operation, the rotational speed is about 80% of the maximum scale (7,000). To 8,000 rpm). The product discharge amount of the small simple device is 500 L / Hr, but the device capacity can be increased as necessary.
The driver of this device performs the same operation as in the above [0024] to [0025], but the electric line homomixer is started after the circulation pump CP is started to avoid idle operation, and before the circulation pump is stopped. It is necessary to pay attention such as stopping it.

  Here, the common structural features of the present invention in the flowcharts 1 to 4 will be described as an example. FIG. 5 shows a waste oil filter (sieve filter) SF used in the present invention. FIG. 6 is a sketch of a state in which the sieve filter main body is attached to the waste oil supply tank WOT. The upper right of FIG. 5 is a lid view CP, and the lower right of FIG. 5 is a drop-type fixing frame FF (filter material pressing frame). This waste oil filter can be easily attached to and detached from the waste oil supply tank by lifting the flange-type holding frame portion F-1 with rainwater with both hands, and the flange type of the holding frame portion FF and the waste oil supply tank. The WP (rainwater seal) shown in FIG. 6 has a structure that prevents rainwater from entering even when exposed to wind and rain. Since it can be easily removed, it is easy to check the status of the waste oil supply tank and clean the filter along with cleaning the filter. The sieve part M-3 at the bottom of the waste oil filter is fitted with a 100 mesh (diameter 150 μm) mesh, and a filter medium FS such as non-woven fabric can be laid as necessary to appropriately adjust the particle size of the solid matter that can be captured. I did it. The filter media is fixed using a drop-type immobilization frame (filter media press frame) FF. When the filter media becomes clogged and difficult to filter, the drop-type immobilization frame is lifted off and the captured solid matter is filtered. Can be easily removed. A non-woven fabric having an opening of about 20 to 50 μm is suitable for reducing the filterability of waste oil and the load of the subsequent microfilter NWF.

  8 and 9 illustrate an emulsification / dispersion apparatus used in the emulsified liquid fuel production apparatus of the present invention. In FIG. 8, a member in which the means for emulsification / dispersion is fixed in the flow pipe, that is, This is a fixed type having a guide vane 11 and a mushroom type current cutter 12, and is called a fixed type line homomixer SME. In the fixed type, the emulsion liquid fuel is emulsified by passing the raw material mixture liquid through the pipe at high speed by pump pressure and mixing a plurality of contained liquids while atomizing. FIG. 9 shows an electric line homomixer DME that mixes a plurality of contained liquids while atomizing them by passing a raw material mixed liquid that turns into an emulsion liquid fuel between a turbine 21 and a stator 22 that rotate at high speed by power. In this type, the mixture is passed between the turbine 21 and the stator 22 that rotate at high speed by power, and a plurality of contained liquids are mixed while being atomized to advance the emulsion. These emulsifying / dispersing devices can pulverize, atomize and mix a plurality of liquid particles continuously with a slight power of about 0.75 KW and a capacity of 500 L / Hr or more to emulsify. In addition to being compact and energy-saving, it can be used with a single-phase 100V power supply by using an inverter. If an emulsifying / dispersing apparatus having a large capacity is used, a larger processing capacity can be obtained.

  FIG. 7 shows an assembled structure of the notch wire filter in which the filter element 42 formed by disassembling the notch wire filter case 32 and winding the notch wire NW is exposed. A filter medium 44 such as a nonwoven fabric is wound around the surface of the filter element 42 to constitute a microfilter NWF. The liquid constituting the emulsion liquid fuel passes through the filter medium and the notch wire filter 42 from the filtered emulsion suction port, passes through the filter medium and the notch wire filter 42, and is transported from the emulsion discharge port after filtration to the circulation pipeline. The The filter medium 44 is a filter medium cut from a roll body so as to be wound around the surface of the filter element 42. In FIG. 9, two notch wire filters are juxtaposed (second microfilter), and the emulsion liquid fuel inflow from the circulation pipeline is used in parallel or switched to be used as the microfilter NWF alternately or concurrently. An embodiment that can be performed is shown. The backwashing means NW is switched by a backwashing means switching handle and used to backwash clogging of the notch wire filter.

  For the notch wire filter, for example, a notch wire filter NWF wound with a notch wire 42 such as a commercially available KOF strainer manufactured by Kanagawa Kikai Kogyo Co., Ltd. can be used. The said filter has the smooth filter element which wound the stainless steel wire 42 which carved the fine notch (cut) of diameter 10-50 micrometers according to the use of produced | generated fuel, The continuous type microfilter with the said backwashing means It is. For boiler fuel, one manufactured using a wire provided with a notch of 25 μm or 10 μm is used for a diesel engine. By operating the backwashing means switching handle, the solid matter adhering to the surface of the filter element can be peeled off and removed. In a microfilter using a filter material such as a nonwoven fabric wrapped around a notch wire filter as in the present invention, cleaning of the notch wire filter can be substantially eliminated. If necessary, remove the filter element, wash with kerosene, etc., and then completely remove clogging with high-pressure air or steam. When the filter medium is wound and used, it is overlapped by 30 to 50 mm, and is adhered and fixed with a rubber string or the like. In this way, more precise filtration is possible. The filter medium to be used can be easily removed together with the trapped solid matter by removing the main body case 32 and peeling off the filter medium. By using the filter medium, it is possible to form a microfiltration device according to the amount of solids contained in the waste oil and the processing amount, and the functionality can be easily changed. It is a feature. As described above, one of the features of the present invention is that the microfilter NWF is configured by combining the non-woven filter medium FF and the notch wire filter as described above.

Here, the combustion characteristics of the emulsified liquid fuel produced from the raw material of 15% or 20% waste rapeseed oil and 85% or 80% light oil using the emulsion liquid fuel production apparatus of FIG. 1 are shown. In the above apparatus, a non-woven fabric of 8-15 μm made by Azumi Filter Paper Co., Ltd. (noted as a technical filter) is wound on a notch wire filter wound with a stainless steel wire with a fine notch of 25 μm. The meaning means that the retained particle diameter is 8 to 15 μm.) Wound (one layer) was used. The product emulsified liquid fuel has been cycled about 7 times (1 hour).
Table 1 (analytical values of waste rapeseed oil blended fuel and diesel oil for diesel engines is shown) is produced by mixing waste rapeseed oil and diesel oil using the waste oil reforming / fuelizing apparatus of FIG. 1 of the present invention. The analysis examples of the diesel engine fuel and the mixed oils A and B are shown in comparison with the diesel oil JIS standard and the commercial product analysis examples (this data is also used in the following analysis examples). The mixing ratio is an example of 20% waste rapeseed oil, 80% light oil (mixed oil B), 15% waste rapeseed oil, and 85% light oil (mixed oil A). Table 2 shows the results of a diesel engine test using a mixed fuel (mixed oil B) of 20% waste rapeseed oil and 80% light oil in comparison with the case using light oil.

Table 2 shows the exhaust gas measurement results in the fixed operation state. During idling operation (rotational speed: 920 rpm), waste rapeseed oil mixed fuel B (mixed oil B) tends to have higher THC (total hydrocarbon) and CO (carbon monoxide) emission concentrations than light oil. In normal medium speed operation (rotation speed: 2,000 rpm) and high speed operation (rotation speed: 2,500 rpm), the reverse rapeseed oil mixed fuel B is more THC (total hydrocarbons), CO than light oil. The (carbon monoxide) emission concentration tends to be rather low. No clear difference was observed for NOx (nitrogen oxide). Regarding smoke, waste rapeseed oil mixed fuel B was better than light oil in all of idling, medium speed and high speed operation. Table 3 shows the fuel consumption data in the 10.15 mode diesel engine test. Waste rapeseed oil mixed fuel B has better fuel efficiency than light oil. In the analysis example of Table 1, although the rapeseed oil mixed fuel B tended to be inferior to light oil with respect to cetane number, calorific value, 90% distillation temperature, and residual carbon content, in the actual engine test, It is estimated that the reason why the fuel combustibility is considered to be good is that rapeseed oil, which is a vegetable oil, is an oxygen-containing fuel.
From these results, it was found that the fuel for diesel engines having combustion characteristics equivalent to or better than commercially available diesel oil and excellent fuel efficiency was obtained with this device.

Here, the combustion characteristics of the emulsified liquid fuel produced using the emulsion liquid fuel production apparatus shown in FIG. 4 using waste soybean oil and A heavy oil as raw materials are shown. In the above apparatus, a non-woven fabric having an opening of 8 to 15 μm made by Azumi Filter Paper Co., Ltd. is wound around a notch wire filter wound with a stainless wire with a fine notch (cut) of 50 μm as a microfilter (one layer) ) Was used. The product emulsified liquid fuel is one that is continuously circulated 1-2 times.
Table 4 shows an analysis example of the fuel for boilers produced by the mixing treatment of waste soybean oil and A heavy oil obtained by using the waste oil reforming and fueling apparatus of FIG. 4 of the present invention. This is shown in comparison with JIS standards and commercial product analysis examples. The mixing ratio is an example of waste soybean oil 20%, A heavy oil 80% (mixed oil C), waste soybean oil 30%, A heavy oil 70% (mixed oil D). Both analytical values are well within the specifications for A heavy oil, and it can be seen that they can be used in the same manner as A heavy oil. Table 5 shows the results of a boiler combustion test using a mixed fuel (mixed oil D) of 30% waste soybean oil and 70% A heavy oil in comparison with the case using A heavy oil. Although it is possible to determine whether the combustion conditions are the same based on the CO ₂ (carbon dioxide) concentration, comparing the data when the CO ₂ concentration is almost the same, the waste soybean oil mixed fuel D is slightly lower in NOx than the heavy fuel oil A There is a trend, and good results have been obtained for smoke.

Here, the emulsion liquid fuel production apparatus of FIG. 2 is made from waste edible oil and light oil, which contain animal oil, etc. from a food waste feed facility, which turns to black-brown when handled at high temperatures and has deteriorated significantly. The combustion characteristics of the emulsified liquid fuel produced using the same are shown. In the above apparatus, a non-woven fabric having an opening of 8 to 15 μm made by Azumi Filter Paper Co., Ltd. is wound around a notch wire filter wound with a stainless wire with a fine notch (cut) of 25 μm as a precision filter (one layer) ) Was used. The product emulsified liquid fuel was circulated 7 times (1 hour). The remarkably deteriorated waste edible oil has poor filterability. Therefore, before entering the emulsion liquid fuel production apparatus of FIG. 2, an equal amount of waste edible oil and light oil are mixed as a pretreatment and allowed to stand for 1 hour. The insoluble matter which separated and settled to the bottom part was removed.
Table 6 uses the waste oil reforming and fueling apparatus of FIG. 2 of the present invention, including animal oil from a food waste feed facility, discolored to black brown when handled at high temperature, and markedly deteriorated An analysis example of diesel engine fuel produced by mixing waste edible oil and diesel oil is shown in comparison with diesel oil JIS standards and commercial product analysis examples. The mixing ratio is an example of 10% of waste edible oil, 90% of light oil (mixed oil E), 20% of waste edible oil, and 80% of light oil (mixed oil F). Table 7 shows the results of a diesel engine test using the above-mentioned mixed fuel (mixed oil F) of 20% waste edible oil and 80% light oil in comparison with the case using light oil. The exhaust gas measurement results in the fixed operation state are shown. In normal medium speed operation (rotational speed: 2,000 rpm), the THC (total hydrocarbon) and CO (carbon monoxide) emission concentrations are almost the same when using the waste edible oil mixed fuel F and light oil. During idling operation (rotation speed: 920 rpm) and high-speed operation (rotation speed: 2500 rpm), waste edible oil mixed fuel F emits THC (total hydrocarbons) and CO (carbon monoxide) from light oil. There was a tendency for the concentration to be slightly higher. Regarding NOx (nitrogen oxide), the waste edible oil mixed fuel F tended to be lower than the light oil during idling (rotation speed: 920 rp). Regarding smoke, waste edible oil blended fuel F gave better results than light oil at all of idling, medium speed and high speed operation. In addition, Table 8 shows fuel consumption data in the 10.15 mode diesel engine test. Waste fuel oil mixed fuel F has a slightly better fuel efficiency than light oil. In the analysis example of Table 6, despite the fact that the waste edible oil blended fuel F tended to be inferior to light oil in terms of cetane number, calorific value, 90% distillation temperature, and residual carbon content, The reason why the fuel flammability is almost equal is estimated to be due to the fact that the waste edible oil is an oxygen-containing fuel. Unlike Example 1 [0031] to [0035], during high-speed operation (rotational speed: 2500 rpm), the waste edible oil mixed fuel F is more THC (total hydrocarbons) and CO (carbon monoxide) than light oil. The reason why the exhaust concentration tended to be slightly higher was presumed to be because the edible oil contained ingredients that were difficult to burn, such as animal oil and vegetable oil that solidified at room temperature.

Here, the emulsion liquid fuel production apparatus shown in FIG. 4 is made from waste edible oil and heavy fuel oil A, which are animal brown, etc. from food waste feed facilities, turned to black-brown when handled at high temperatures, and deteriorated significantly. The combustion characteristics of the emulsified liquid fuel produced using In the above apparatus, a non-woven fabric having an opening of 8 to 15 μm made by Azumi Filter Paper Co., Ltd. is wound around a notch wire filter wound with a stainless wire with a fine notch (cut) of 50 μm as a microfilter (one layer) ) Was used. The product emulsified liquid fuel is one or two times continuously circulated. The remarkably deteriorated waste edible oil has poor filterability. Therefore, before entering the emulsion liquid fuel production apparatus shown in FIG. 2, an equal amount of waste edible oil and A heavy oil are mixed as a pretreatment and left for 1 hour. The insoluble matter that had settled and settled to the bottom was removed.
Table 9 uses the waste oil reforming and fueling apparatus of FIG. 4 of the present invention, contains animal oils, etc. from food waste feed conversion facilities, and turned to black-brown when handled at high temperature, and markedly deteriorated An analysis example of the boiler fuel produced by the mixing treatment of the waste cooking oil and the A heavy oil is shown in comparison with the JIS standard of the A heavy oil and the commercial product analysis example. The mixing ratio is an example of 50% waste cooking oil and 50% A heavy oil (mixed oil G). Analytical values that fully meet the standards for heavy oil A have been obtained, and are considered to be used in the same manner as heavy fuel oil A. Although the calorific value is slightly low, since edible oil is an oxygen-containing fuel, improvement in combustibility can be expected, so it is estimated that the actual boiler operation is compensated to some extent.

Here, the emulsified liquid fuel manufactured using the emulsion liquid fuel manufacturing apparatus shown in FIG. 3 is made from waste oil which is discharged from a chemical factory and is treated as industrial waste and has no fluidity at room temperature and A heavy oil. The combustion characteristics of are shown. In the above apparatus, a non-woven fabric having an opening of 10 to 20 μm made by Azumi Filter Paper Co., Ltd. is wound around a notch wire filter wound with a stainless wire inscribed with a fine notch (cut) of 50 μm as a precision filter (one layer) ) Was used. The product emulsified liquid fuel is one that is continuously circulated 1-2 times.
Table 10 shows a mixture of waste oil and heavy fuel oil A, which is discharged from a chemical factory and processed as industrial waste, and has no fluidity at room temperature, using the waste oil reforming and fueling apparatus of FIG. 3 of the present invention. The analysis example of the fuel for boilers (mixed oil H) produced | generated by the process is shown in comparison with the JIS standard of A heavy oil and the commercial product analysis example. The mixing ratio is 20% factory waste oil and 80% A heavy oil. Before the treatment according to the present invention, the waste oil was heated to 65 ° C. and mixed with A heavy oil in an equal amount, and pre-filtered using an 8-15 μm open nonwoven fabric manufactured by Azumi Filter Paper Co., Ltd. Analytical values that can be used satisfactorily as a substitute for A heavy oil have been obtained.

Here, a mixed fuel of 20% of general waste rapeseed oil (triacylglycerol) and 80% of light oil and 20% of waste econa oil (diacylglycerol) manufactured by Kao Corporation and 80% of light oil are used as raw materials. The combustion characteristic of the emulsified liquid fuel manufactured using the emulsion liquid fuel manufacturing apparatus is shown. In the above apparatus, a non-woven fabric having an opening of 8 to 15 μm made by Azumi Filter Paper Co., Ltd. is wound around a notch wire filter wound with a stainless wire with a fine notch (cut) of 25 μm as a precision filter (one layer) ) Was used. The product emulsified liquid fuel was circulated 7 times (1 hour).
Tables 11 and 12 show a mixed fuel (mixed oil I) of 20% of general waste rapeseed oil (triacylglycerol) and 80% of light oil using the waste oil reforming / fuelizing apparatus of FIG. 1 of the present invention. ) And the results of a Kubota tractor diesel engine test using a mixed fuel (mixed oil J) of 20% waste econa oil (diacylglycerol) and 80% light oil produced by Kao Co., Ltd., as compared with the case using light oil. Table 11 shows the exhaust gas measurement results in the fixed operation state. In each operating situation (each rotational speed), there was no clear difference in emission concentration with respect to CO (carbon monoxide) and NOx (nitrogen oxide). At idling (rotation speed: 1,100 rpm), the CO (carbon monoxide) emission concentration tends to be slightly higher. Regarding smoke, waste rapeseed oil mixed fuel I and waste econa mixed fuel J showed slightly better results than light oil in each operating situation (each rotation speed). Table 12 shows the traction force measurement results in comparison with the case of light oil. Despite the smaller calorific value of the waste rapeseed oil mixed fuel I and the econa mixed fuel J than the light oil, the actual traction test gave the same or better results. In particular, in the case of waste econa mixed fuel J, good results are obtained. This is estimated to be due to the influence of oxygenated fuel.

  As described above, when the waste oil reforming / fuelizing apparatus of the present invention is used, various emulsion fuels can be generated using a liquid containing combustion components other than mineral oil. In particular, it has been confirmed that when an anionic surfactant or a nonionic surfactant is added in an amount of 0.01 to 1%, a stable emulsion fuel can be obtained for more than half a month. For example, 40% of a liquid obtained by adding 0.1% of Emulgen 420 manufactured by Kao Co., Ltd. as a nonionic surfactant to 60% of waste edible oil and waste fermented ethanol water distilled solution (60% ethanol-containing aqueous solution) It has also been confirmed that a stable emulsion fuel that can be used for fixed combustion furnaces such as boilers and incinerators can be obtained by using a waste oil reforming and fueling device.

It is a flowchart of batch type simple waste oil reforming and fueling apparatus SME-I of an Example. It is a flowchart of the batch type simple waste oil reforming and fueling apparatus DME-I of an Example. It is a flowchart of continuous type simple waste oil reforming and fueling apparatus SME-II of an Example. It is a continuous type simple waste oil reforming and fueling apparatus DME-II flowchart of an Example. It is waste oil filter SF attached to the upper part of the waste oil container of the blending / mixing tank MT of the embodiment. The figure which shows the rainwater seal filter attachment structure of the waste oil container upper part of the mixing | blending and mixing tank MT of an Example Fig. 1 is an exploded view of one of the microfilters (notch wire filters) of the embodiment, especially two side-by-side models Sectional view of emulsification / dispersion device (fixed type line homomixer) of Example Sectional view of emulsification / dispersion device (electric line homomixer) of Example

Explanation of symbols

SF Waste oil filter (Sieving filter)
NWF precision filter (notch wire filter)
SME fixed type emulsification and dispersion equipment (fixed type line homomixer)
DME Electric emulsification / dispersion device (Electric line homomixer)
MT compounding / mixing tank (circulation processing oil tank)
WOT Waste oil supply tank CP Circulation pump (Gear pump)
WOP Waste oil supply pump (gear pump)
POP mineral oil supply pump (gear pump)
FI flow meter LG liquid level meter LC liquid level switch PG pressure gauge F 60 mesh strainer V-ball valve WO waste oil PO mineral oil W water EA emulsifier FO product fuel WP sieve type filter attachment part M-3 sieve part (100 mesh net) )
F-1 Flange-type holding frame with rainwater shield CP Lid FF Drop-type fixing frame (filter material presser frame)
FS filter medium (nonwoven fabric, etc.) 11 Guide vane 12 Current cutter 21 Turbine 22 Stator 32 Case 34 Air vent plug
42 Filtration element 44 Filtration element wound filter media (nonwoven fabric, etc.)

Claims (6)

An apparatus for producing an emulsion liquid fuel from waste oil, wherein the waste oil supply unit is provided with a sieve type filter on which a filter medium selected from a nonwoven fabric and a paper filter medium capable of removing insoluble components having a diameter of 20 to 100 μm can be placed , A mineral oil supply unit that is mixed with the waste oil to form an emulsion liquid fuel, and an additive component supply unit that is provided as necessary to improve the emulsion liquid fuel, the waste oil, mineral oil, and emulsion supplied from each of the supply units A blending / mixing tank that contains liquid fuel-improving additive components, and connected / arranged to the blending / mixing tank, it is possible to remove insoluble components that have a diameter of less than 20 μm and that exceed 8 μm from inhibiting the emulsion liquid fuel conversion. A precision filter with a filter medium selected from non-woven and paper filter media placed on the surface of the notch wire filter and a fixed type Alternatively, a pipeline system in which an electric emulsification / dispersion device is arranged, and the pipeline system uses the microfilter and the emulsification / dispersion device for all or part of the emulsified liquid fuel to the blending / mixing tank. A circulation supply pipeline is provided, and the return side tip of the circulation pipeline to the blending / mixing tank extends to near the bottom of the tank and the circulating emulsified liquid fuel is accommodated in the blending / mixing tank. The circulating liquid fuel is installed in the emulsified liquid fuel so as to be blown up and stirred, and at least the side of supplying each component contained in the blending / mixing tank to the pipeline system is at the lower part of the blending / mixing tank. An apparatus for producing an emulsion liquid fuel, characterized in that it is installed. The said waste oil supply part which provided the sieve type filter in which the said mixing | blending and mixing tank can mount the filter medium selected from the nonwoven fabric made from a nonwoven fabric and paper made from which a diameter of 20-100 micrometers is captured on a sieve surface As a waste oil metering / accommodating unit with a level gauge and a mineral oil metering / accommodating unit with a level gauge as a mineral oil supply unit mixed with the waste oil to form an emulsion liquid fuel. At the time of fueling, a communication pipe is provided for circulating the emulsified liquid fuel in the storage section where the return side tip of the circulation pipeline is installed to circulate to the other storage section. 2. The apparatus for producing an emulsion liquid fuel according to claim 1, wherein a pipeline to be supplied to the tank is installed at each lower part of each container of the blending / mixing tank. . An emulsion liquid fuel component comprising waste oil, a mineral oil mixed with the waste oil to form an emulsion liquid fuel, and the emulsion fuel improvement additive component is less than 20 μm in diameter and less than 8 μm from the emulsion liquid fuel component. Pipeline system supply / circulation in which a filter selected from nonwoven and paper filter media capable of removing insoluble components is placed on the surface of the notch wire filter and a fixed or electric emulsification / dispersion device is installed The apparatus for producing an emulsion liquid fuel according to claim 1 or 2, wherein a gear pump arranged upstream of the microfilter is used as the liquid feeding means. The apparatus for producing an emulsion liquid fuel according to claim 1, 2 or 3, wherein a fixed line mixer or a small electric line mixer in which an emulsification / dispersion member is fixedly arranged in a pipe is used as the emulsification / dispersion apparatus. In order to continuously remove insoluble components exceeding a diameter of less than 20 μm and exceeding 10 μm from an emulsion liquid fuel component composed of waste oil, a mineral oil mixed with the waste oil to form an emulsion liquid fuel, and the emulsion fuel improving additive component The microfilter is constructed by winding a filter medium selected from non-woven fabric and paper filter media capable of removing components less than 20 μm and exceeding 8 μm around stainless steel notch wires forming fine filter clearance openings of 10 to 50 μm. The apparatus for producing an emulsion liquid fuel according to any one of claims 1 to 4, wherein the apparatus is configured to be wound around a notch wire filter surface and fixed. A pipeline system in which a microfilter and an emulsifying / dispersing device of an apparatus for producing an emulsion liquid fuel according to any one of claims 1 to 5 are directly connected to a combustion apparatus using at least an emulsion liquid fuel as a fuel A combustion apparatus with an emulsion liquid fuel production apparatus.

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