JP2005334779A - Equipment for treating oil cake - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide equipment for treating oil cake, in which the oil cake generated when edible oil is manufactured is hydrolyzed to obtain slurry and then pulverized by exerting the impact action and shear action of a high-speed water current on the obtained slurry so that the pulverized oil cake can be annihilated efficiently by adding fermentative bacteria or can be used variously as liquid fertilizer, and the like. <P>SOLUTION: The equipment 1 for treating oil cake is composed of: a fermentative bacterium supplying unit 10 in which a large quantity of fermentative bacteria are cultivated; a slurry producing unit 20 for producing slurry by hydrolyzing the oil cake A from an oil mill 5 in an alkaline condition; a pulverization unit 30 for pulverizing oil cake particles in the oil cake slurry S sent from the slurry producing unit 20 by exerting the impact action and shear action of the high-speed water current mainly on the oil cake particles; and a fermentation unit 50 in which the pulverized oil cake particles are fermented after receiving the water current S' which contains the pulverized oil cake particles and is supplied from the pulverization unit 30 and the large quantity of fermentative bacteria F supplied from the fermentative bacterium supplying unit 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  INDUSTRIAL APPLICABILITY The present invention is effective with processing equipment for pulverizing oil seeds such as soybean oil, rapeseed, cottonseed, flaxseed, peanuts, etc. by squeezing or leaching plant seeds, fish oil cake, etc. The present invention relates to a processing equipment for edible oil production soot that finely pulverizes the soot to a micron level so that it can be processed.

The main component of soybean cake is soybean cake, which is used as a raw material for miso and soy sauce, as well as feed and fertilizer, but other soybean cake contains fertilizer because it contains harmful components and produces less. . However, because the production of soybean meal was outstanding, many were incinerated. However, vegetable oil meal is rich in nitrogen and contains phosphoric acid and potassium, and is promising as a slow-release base fertilizer. Therefore, there is a method of mixing soybean meal with waste cooking oil for the production of oil cake-like fertilizer and aging. (For example, refer to Patent Document 1).
JP-A-8-26872 ([Detailed Description of the Invention])

The soybean meal utilization process as described above is not effective for large-scale production. It can be used in large quantities as a culture site for culturing a large amount of fermenting bacteria that have been attracting attention for the treatment of sludge and sludge organic content in recent years, and also as a liquid fertilizer effective in overcoming continuous cropping obstacles. There was a need to answer the request.
The object of the present invention is to finely pulverize the oil cake to the micron level to greatly increase the unit surface area, and to use it as a culture place for mass culture of fermenting bacteria, and to adhere a large number of mixed fermenting bacteria Providing processing equipment for edible oil production paddles that can be efficiently consumed and consumed in a short time during the growth process, and that is also useful for the production of liquid fertilizers that contain a large amount of cultured fermented bacteria to overcome continuous cropping obstacles To do.

The processing equipment for oil scum of the present invention
A slurry generating means for supplying oil cake and water of edible oil to produce an oil cake slurry;
Water is supplied by a high-pressure pump into an annular channel formed between a plurality of cylindrical walls in the cylindrical container to generate a high-speed water flow, and at the same time, oil-slurry slurry supplied by the pump from the slurry generating means is annular. In the flow path, oil bubbles in the slurry are pulverized into micron-level particles and discharged by impact action at the flow direction changing portion of the high-speed water flow, shearing action near the cylindrical wall, and / or cavitation action by air in the water flow. Fine grinding means;
It is characterized by having.

  Furthermore, the processing equipment of the present oil cake receives the supply of fermenting bacteria from the fermenting bacteria supply means and the supply of the fermenting bacteria from the fermenting bacteria supply means while receiving the supply of the water stream containing fine oil cake particles containing the fine oil cake particles finely pulverized from the fine grinding means. And a treatment tank for treating the oil cake particles with the fermenting bacteria.

  The slurry generating means is configured to be able to generate slurry by mixing oil cake and water in a ratio of about 1: 9 by weight ratio, and may have pH adjusting means for that purpose.

  The fermenting bacteria supply means includes an inoculum tank containing an inoculum, a molasses nutrient tank, a water pulverizer for pulverizing a water cluster, and water of the fine cluster is supplied from the water pulverizer, and the inoculum tank And a culture tank to which molasses nutrients are supplied from a molasses nutrient tank.

  The pulverizing means includes a cylindrical container having a cylindrical wall having two or more cylindrical walls substantially concentrically and provided with an annular channel between adjacent cylindrical walls, and a tangentially applied to the annular channel. A pressure fluid is injected to create a high-speed water flow of 8 m / second or more in the circumferential direction and generate a shearing action on the fluid in the vicinity of the cylindrical wall, and arranged on one of the adjacent cylindrical walls. A slot for supplying oil slurry into the high-speed water stream, and a fine oil tank containing finely pulverized particles obtained by pulverizing the oil tank to micron-level particles by impact action at the slot portion or shearing action when mixing into the high-speed water stream And an outlet for discharging the particle-containing water stream.

  The finely pulverizing means includes oil slurries sucked by an ejector effect by a high-speed water flow by a high-pressure pump, and a second annular flow path of 8 m / second or more in an annular flow path divided into three by a three-layer cylindrical wall. Supplying mixed high-speed water flow, the intermediate mixed water flow is sucked by another pump from the inner third annular flow path which flows in through the slot of the inner cylindrical wall or by overflow from the upper end of the inner cylindrical wall, and has an outlet It is configured to supply the outer first annular flow path at a high speed of 8 m / second or more, and to discharge the water flow containing fine oil soot particles including the oil soot particles finely pulverized in the process so far from the outlet.

  The cylindrical wall can be an elliptic cylinder or a cylinder having a partially flat portion.

As an effect of the present invention, in the processing equipment for edible oil production lees according to the present invention, an oil lees slurry in which paste-like lees are mixed with water while the pH is adjusted by hydrolysis or the like using an alkaline chemical agent by the slurry generating means. And can be supplied to the pulverizing means by a pump. In the pulverizing means, the oil slurry is supplied from the slurry generating means to a high-speed water flow of 8 m / second or more generated by supplying water with a high-pressure pump in an annular flow path formed between a plurality of cylindrical walls, Oil bubbles in the slurry are finely pulverized into micron-level particles by impact action at the flow direction changing portion of the high-speed water stream, shearing action near the cylindrical wall, and / or cavitation by air in the water stream. When oil candy particles are finely pulverized to this level, the unit surface area is greatly increased.For example, if fermented bacteria are added, a large number of fermentation bacteria adhere to the oil candy particles and inhabit, and the oil candy particles are ingested and proliferated. A large amount of oil cake particles are efficiently decomposed and consumed by carbon dioxide and heat in the fermentation process. Incidentally, if the specific surface area of a spherical organic substance having a radius of 1 mm is only 0.00120 m ² / g, but is refined into a spherical shape having a radius of 0.0001 mm, the specific surface area is 12.0 m ² / g. Thus, 10,000 times as many fermenting bacteria can adhere to the surface, and the fermenting bacteria can be efficiently cultured in a very large amount. Therefore, when the oil cake is finely pulverized as described above, the fine oil cake particle-containing water is very effective as a culture site for fermentation bacteria, and the fine oil cake particle-containing water in a state where a large amount of fermentation bacteria are cultured is liquid. It is also used as a fertilizer and relieves continuous cropping problems by the contained fermentative bacteria. Even if heavy metals and arsenic are contained in the soil, a very large amount of fermenting bacteria can be taken into the fermenting bacteria as a micronutrient source in the process of growth and can enjoy the secondary effect of becoming harmless to human livestock.

  Further, the processing equipment for the edible oil production mash receives the fermenting bacteria supply means and the fine oil candy particle-containing water stream containing the fine oil mash particles finely pulverized from the fine pulverization means and fermented from the fermenting bacteria supply means. When having a treatment tank that receives the supply of bacteria and treats the oil cake particles with fermentation bacteria, the fermentation bacteria are efficiently cultured in an extremely large amount by the oil cake particles whose unit surface area is greatly increased as described above in the treatment tank. In addition to liquid fertilizers that contain a large amount of fermenting bacteria that can alleviate continuous cropping problems, a foul odor prevention agent at a garbage storage place or treatment plant, a sludge or sludge treatment agent, a livestock sewage treatment agent In addition, it is possible to produce a residue treatment agent for a seafood processing plant and a feed treatment agent.

  The slurry generating means has a pH adjusting means for supplying sodium bicarbonate, sodium carbonate, etc. to hydrolyze in an alkaline state so as to produce a slurry by mixing oil cake and water in a weight ratio of about 1: 9. By using a pH adjuster such as sodium bicarbonate, sodium carbonate, or caustic soda added from the pH adjusting means, even an oil cake with a paste-like oil content can be suspended in about 9 times the amount of water, resulting in a slurry with high fluidity. be able to.

  The fermenting bacteria supply means includes an inoculum tank containing the inoculum, a molasses nutrient tank, a water pulverizer for pulverizing the water cluster, and water of the fine cluster is supplied from the water pulverizer, And a culture tank to which molasses nutrients are supplied from the molasses nutrient tank and fermented inoculum, and inoculate the inoculum with high growth ability from the inoculum tank with nutrient molasses from the molasses nutrient tank. A large amount of fermenting bacteria having a vigorous growth ability can be cultured with fine clusters of water from a pulverizer.

  In the fine pulverizing means, an annular flow path is formed between adjacent cylindrical walls provided in two or more layers substantially concentrically, and a pressurized fluid is injected into the annular flow path in a tangential direction from the ejection portion, for example, 10 m / A high-speed water flow in the circumferential direction of more than a second is generated to generate a shearing action on the fluid near the cylindrical wall, and a slurry containing oil slag from the supply section is used to generate a large amount of micron-level particles in this high-speed water flow. By pulverizing until it is contained, and continuously discharging it from the outlet of the fluid containing fine oil particles, water containing fine oil particles containing finely pulverized particles can be used as an excellent culture site for fermentation bacteria, and fermentation By adding the fungus, the oil cake particles in the water stream containing the fine oil cake particles can be efficiently decomposed and eliminated in a short time, and further used in various ways as described above.

  In the pulverizing means, the mixed high-speed water flow is fed into the second annular flow channel of the annular flow channel divided into three by the three-layered cylindrical wall, together with the oil cake slurry sucked by the ejector effect by the high-speed water flow by the high-pressure pump. When supplied to the third annular flow channel inside the flow through the slot of the inner cylindrical wall or by overflow from the upper end of the inner cylindrical wall, impact action at the flow direction change portion of the slot portion or waterfall caused by overflow The oil slag particles are finely pulverized by an effect, that is, a large impact. This is because a large impact force is generated by a synergistic action by pushing by a high-pressure pump and suction by another pump. Thereafter, the intermediate mixed water flow is further sucked in by another pump and supplied at high speed to the outer first annular flow path having the outlet portion, subjected to a shearing action, and finely containing finely pulverized oil cake particles in these processes. Oil stream containing water is discharged from the outlet. Water containing fine oil cake particles is used as an excellent culture site for fermenting bacteria, and by adding fermentative bacteria, water containing fine oil cake particles is efficiently decomposed and disappeared in a short time. Used.

  If the cylindrical wall has an elliptical cylindrical shape or a cylindrical shape with a partly flat part, the high-speed water flow generated by the high-pressure pump in these non-circular parts causes a larger impact and shearing action, causing Can be finely pulverized.

Next, a processing facility for cooking oil production tanks according to representative embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the processing equipment 1 of the edible oil production tank of typical embodiment of this invention is the fermenting microbe supply apparatus 10, the slurry production | generation apparatus 20 which slurries the oil cake A from the oil press 5, and the slurry production | generation apparatus. The fine pulverizer 30 for finely pulverizing the oil pod particles in the oil pulverized slurry S 20, the supply of the fine oil pod particle-containing water stream S ′ from the fine pulverizer 30, and the supply of a large amount of fermenting bacteria F from the fermenter supply apparatus 10 It is comprised from the processing apparatus 50 which each receives and ferments. The fine oil cake particle-containing water stream from the pulverizer 30 can be shipped as a fermentation medium. The processing liquid S ”containing fermented bacteria cultured in large quantities from the processing apparatus 50 is a liquid fertilizer that alleviates continuous cropping obstacles, an anti-odor agent at a garbage storage place or processing plant, a sludge or sludge processing agent. It is used for grease traps, rendering, etc., as a livestock sewage treatment agent, a residue treatment agent for seafood processing plants, and a feed treatment agent.

  The fermenting fungus supply device 10 includes an inoculum tank 11 containing fermented bacterial species such as Lactobacillus collected locally, a molasses nutrient tank 12 containing a nutrient containing molasses, and water of the supplied water w A water pulverizing device 13 (pump P0 is supplied from the device 13) that pulverizes the cluster by impact action and shear action by a high-speed water flow of 8 m / second or more, preferably 20 to 30 m / second, generated by the high-pressure submersible pump P0. When water is sucked), treated water is supplied from the water pulverizer 13 and fermented bacterial species are supplied from the inoculum tank 11 and molasses nutrients are supplied from the molasses nutrient tank 12 to culture a large amount of fermented bacteria. The tank 14 is constituted. The water pulverizing device 13 forms a cluster of water by an impact action at the flow direction changing portion, a shearing action due to a difference in water flow velocity at the cylindrical wall portion, and ultrasonic waves of bubble rupture based on the same principle as the pulverizing device 30 described later. It is to be miniaturized. In the culture tank 14, the fine water of the supplied clusters facilitates fine dispersion of the fermenting bacteria and molasses nutrients, and enables mass cultivation of fermenting bacteria with a strong growth potential.

  As the fermenting bacteria F, lactic acid bacteria such as Lactobacillus, yeasts, butyric acid bacteria, and natto bacteria are generally known. Fermented bacterial species such as Lactobacillus are preferably collected at the site of oil lees and at the culture site of the fermented bacteria and have survived in the climate of the site. It is possible to obtain a robust fermented bacterial species that can fully exert its effect without causing any effects. In addition, when photosynthetic bacteria having a symbiotic relationship are added to the culture tank 14, the necessary substances are supplied to each other and the culture is accelerated, and the photosynthetic bacteria use malodorous substances generated by spoilage bacteria as nutrients. Take it and fermented bacteria will increase the growth potential as explained below. In other words, photosynthetic bacteria are rich in excellent nutrients such as amino acids, minerals, and vitamins, and the cells themselves are useful as organic fertilizers, but when they encounter septic substances, hydrogen sulfide generated by sulfate-reducing bacteria is used as a nutrient source. In addition to active intake, toxic amines such as putrescine and cataverine and carcinogenic teratogenic dimethylnitrosamine are also preferred as a substrate and decomposed and removed.

  In the slurry production apparatus 20, the oil cake A such as soybean meal supplied from the oil press 5 as oiled rice cake is mixed with the water W at a ratio of about 1: 9 by weight, and the pH is 10 In order to hydrolyze in the alkaline state before and after, and in the case of low pH oil cake, a pH adjuster B such as sodium bicarbonate, sodium carbonate or caustic soda is supplied from the pH adjuster 6 to the slurry generator 20 as necessary. Even if the oil cake with a paste-like oil content is stirred and mixed, it is suspended in about 9 times as much water W, and a weakly alkaline slurry S rich in fluidity is produced. The slurry S is supplied to the pulverizing apparatus 30 by the pump P1 so that the oil slag particles therein are pulverized to the micron level.

For example, as shown in FIGS. 3 (A) and 3 (B), the pulverizing apparatus 30 of the first embodiment forms a hollow cylindrical container 32 from a top plate 32a, a bottom plate 32b, and a peripheral wall 32c. A cylindrical inner wall 33 c is provided concentrically to form an outer annular flow path 33 and a lumen chamber 34. The discharge port 31b of the ejection pipe 31a is attached from the tangential direction to the inside near the bottom plate 32b of the peripheral wall 32c, and circulates in the annular flow path 33 by the water flow supplied from the high-pressure pump P3, for example, about 8 m / sec. The above high speed water flow H1 of preferably 20 to 30 m / sec is generated. In order to make the water w to be atomized (in the case of the water pulverizer 13) and the slurry S collide with the high-speed water flow H1 at a substantially right angle, a plurality of elongated slots 33d are formed in the cylindrical inner wall 33c and the supply of the water or slurry is performed. The pipe 35 is attached to the top plate 32 a so as to open to the lumen chamber 34, and the clean water w and the slurry S are supplied to the annular flow path 33 from the vertically long slot 33 d via the lumen chamber 34. In the mixing region M at the place where it exits from the slot 33d, the impact action caused by the direction change of the cluster of the clean water w and the oil spilled particles of the slurry S, and the high-speed water flow H1 adhere along the outer surface of the cylindrical inner wall 33c and the inner surface of the peripheral wall 32c It atomizes to 1-10 micrometers by the shearing effect by the big speed difference with water, and the cavitation effect | action of the air in water. A bubble generator that mixes bubbles into the water flow from the water ejection pipe 31a may be attached to the water ejection pipe 31a. The fine water-containing water flow S ′ and the fine particle-containing water flow S ′ in which the oil slag particles are finely pulverized are discharged from the discharge pipes 36 (provided at a plurality of places as necessary). The high-pressure pump P3 sucks in through another discharge pipe 37 and circulates water. In the case of finely pulverized fine soot particles, for example, the specific surface area of a sphere having a radius of 1 mm before pulverization was only 0.00120 m ² / g, but the sphere having a radius of 0.0001 mm was obtained. When finely pulverized, the specific surface area is 12.0 m ² / g, which is 10,000 times larger. Therefore, 10,000 times the number of fermentation bacteria can adhere to the surface, and the excellent culture site U1 for fermentation bacteria In addition, the processing apparatus 50 can efficiently culture a large amount of fermenting bacteria, and can efficiently decompose and eliminate the oil cake particles in a short time, and the processing solution S ″ can be used in various ways as described above. .

  The pulverizing apparatus 40 of the second embodiment shown in FIGS. 2 and 4 has three layers of cylindrical walls 43a, 43b, 43c (third) of a container 43 whose top and bottom are closed by a top plate 42a and bottom plates 42b, 42c. Only the cylindrical wall 43c has a gap with respect to the top plate 42a), and water is fed into the second annular channel 44b in the middle of the annular channel divided into three by the pump P4 at 8 m / sec. The above-mentioned, preferably 20 to 30 m / second high-speed water flow H2 is supplied, and the third cylinder at the center of the inner side falls into and flows in strongly due to the overflow from the upper end of the third cylindrical inner wall 43c (constitutes the flow direction changing portion). There is an outlet portion (connected to the processing device 50 via the pipe 48) by sucking the mixed water stream containing fine oil soot particles for intermediate processing from the bottom of the annular flow path 44c via the pipe 46 by another pump P5. 8m in the outer first annular channel 44a Above seconds, preferably is then supplied at a high speed water flow H2 'of 20 to 30 m / sec, it is repeatedly applied and impact action and shearing action. The slots 33d and slits of the first embodiment can be formed in the second and third cylindrical walls 43b and 43c. The intake of the slurry S into the high-speed water flow H2 is performed by the ejector section 41 using the high-speed water flow sucked and discharged from the first annular flow path 44a through the pipe 47 by the high-pressure pump P4. The mixed high-speed water flow H2 is supplied to the second annular flow path 44b. When a slot is provided in the cylindrical wall 43c, if it flows into the inner third annular flow path 44c through the slot or by overflow from the upper end of the inner cylindrical wall 42c, the impact action at the flow direction change portion of the slot portion Oilfall particles are finely pulverized by the waterfall effect caused by the overflow and the large impact. This is because a large impact force is generated by the synergistic action of the pushing by the high pressure pump P4 and the suction by the other pump P5. The fine oil lees particle-containing water S ′ is used as an excellent culture site as described above, and the treated water S ″, which is fermented fine oil lees particle-containing water that has been proliferated with the addition of fermentative bacteria, is effective in a short time. It can be used for various purposes as described above.

  When the cylindrical walls 32c, 33c, 43a, 43b, and 43c have an elliptical cylinder shape or a cylindrical shape having a partially flat portion in addition to the cylindrical shape, high-speed water flow generated by the high-pressure pump in these non-circular portions Can cause fine impact and shearing action to effectively finely pulverize the oil cake particles in the water stream.

  The processing device 50 receives the supply of the fine oil cake particle-containing water stream S ″ containing the fine oil cake particles finely pulverized from the fine grinding device, and also receives the supply of a large amount of fermentation bacteria from the fermenting fungus supply device 10 to ferment the oil cake particles. In addition to converting to carbon dioxide and heat as consumption food for the growth of fungus F, the treatment liquid S ”containing a larger amount of fermented bacteria is a liquid fertilizer and raw garbage storage that alleviates continuous cropping problems. It is used as a foul odor prevention agent in places and treatment plants, sludge and sludge treatment agents, livestock sewage treatment agents, residue treatment agents in seafood processing plants, feed treatment agents, etc., and in grease traps and rendering.

Explanatory drawing which showed the processing equipment of the oil bottle of typical embodiment of this invention. The schematic explanatory drawing of the pulverization apparatus of the 2nd Example of the installation. The fine crushing apparatus of the 1st Example of the installation is shown, (A) is a partially cutaway top view, (B) is a partially cutaway elevation view. The partially cutaway elevation view of the pulverizing apparatus of the second embodiment of the same equipment.

Explanation of symbols

1: Oil tank treatment equipment 6: pH adjusting means 10: Fermentation bacteria supply means 11: Inoculum tank 12: Molasses nutrient tank 13: Water fine grinding device 15: Fermentation fungus culture tank 20: Slurry producing means 30: Fine grinding means 32: Cylindrical containers 32c and 33c: Cylindrical wall 33: Annular channel 40: Fine grinding means 41: Ejector means 43: Cylindrical containers 43a, 43b, 43c: Cylindrical wall 44a: First annular channel 44b: Second annular Channel 44c: Third annular channel 50: Processing device A: Oil bottle B: pH regulator F: Fermentation bacteria H1: High-speed water stream H2: Mixed high-speed water stream P3: High-pressure pump P4: High-pressure pump P5: Another pump S: Oil tank Slurry S ': Water flow containing fine oil soot particles W: Water

Claims (8)

A slurry generating means for supplying oil cake and water of edible oil to produce an oil cake slurry;
Water is supplied by a high-pressure pump into an annular channel formed between a plurality of cylindrical walls in the cylindrical container to generate a high-speed water flow, and at the same time, oil-slurry slurry supplied by the pump from the slurry generating means is annular. In the flow path, oil bubbles in the slurry are pulverized into micron-level particles and discharged by impact action at the flow direction changing portion of the high-speed water flow, shearing action near the cylindrical wall, and / or cavitation action by air in the water flow. Fine grinding means;
A processing facility for cooking oil production tanks. Furthermore, fermenting bacteria supply means,
A processing means for receiving the supply of the fine oil cake particle-containing water stream containing the fine oil cake particles finely pulverized from the fine pulverization means and receiving the supply of the fermentation bacteria from the fermentation bacteria supply means to treat the oil cake particles with the fermentation bacteria. The equipment according to claim 1.   The equipment according to claim 1, wherein the slurry generating means mixes oil slag and water at a weight ratio of about 1: 9 to generate a slurry.   The equipment according to claim 1 or 3, wherein the slurry generating means has pH adjusting means.   The fermenting bacteria supply means includes an inoculum tank containing an inoculum, a molasses nutrient tank, a water pulverizer for pulverizing a water cluster, and water of the fine cluster is supplied from the water pulverizer, and the inoculum tank The apparatus according to claim 2, further comprising a culture tank that is supplied with fermentation inoculum and is supplied with molasses nutrients from a molasses nutrient tank.   The pulverizing means includes a cylindrical container having a cylindrical wall having two or more cylindrical walls substantially concentrically and provided with an annular channel between adjacent cylindrical walls, and a tangentially applied to the annular channel. Injecting pressurized fluid to create a high-speed water flow in the circumferential direction and generating a shearing action on the fluid near the cylindrical wall, and placing it on any one of the adjacent cylindrical walls, Discharges the water stream containing fine oil particles including finely pulverized particles that are finely pulverized until they contain micron-level particles by the slot supplied into the water flow and the impact action at the slot and shearing action when mixing into the high-speed water flow The facility according to claim 1, further comprising an outlet portion.   The above fine pulverizing means is mixed with the second annular flow channel of the annular flow channel divided into three by the three-layer cylindrical wall together with the oil sludge slurry sucked by the ejector action by the high speed water flow by the high pressure pump in the ejector part. Supply the water flow and suck the intermediate mixed water flow by another pump from the inner third annular flow path which flows in through the slot of the inner cylindrical wall or by overflow from the upper end of the inner cylindrical wall, and the outer side with the outlet part The equipment according to claim 1, wherein the first annular flow path is supplied at a high speed, and the fine oil soot particle-containing water stream containing the oil soot particles finely pulverized in the process so far is discharged from the outlet portion. The said cylindrical wall is the installation of Claim 1 which has comprised the cylindrical shape which has an elliptical cylinder shape or a partially flat part.

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