JP4925193B2 - Refined mixing device and refined mixing method for multiphase fluid - Google Patents

Description

  The present invention relates to a miniaturized mixing apparatus for a multiphase fluid capable of generating a gas-liquid mixture in which, for example, a liquid and a gas are mixed and fine bubbles are dispersed in the liquid.

  Conventionally, for example, surplus sludge generated by the activated sludge method is mixed with fine bubbles made by refining ozone to about several tens of microns, and the excess sludge is decomposed by the oxidation of ozone and the destruction of fine bubbles. Is disclosed (for example, see Patent Document 1). As an apparatus for generating fine bubbles of ozone, an apparatus using a gas-liquid shearing method or a venturi tube method has been proposed.

  As another microbubble generating device, a device including a gas-liquid mixing pump and a resistor has been proposed (see Patent Document 2). The gas-liquid mixing pump is configured such that an annular fluid passage narrow in the radial direction is formed on the inner periphery of the casing, and an impeller having a large number of stirring blades protruding into the fluid passage is driven by a motor. The liquid and gas are sucked by this gas-liquid mixing pump, and the liquid and gas are stirred and mixed by a large number of stirring blades, and then the bubbles are refined by a resistor connected to the discharge side. The resistor is provided with a plurality of barrier plates and orifices, and bubbles repeatedly collide with the barrier plates and pass through the orifices to generate fine bubbles having uniform dimensions.

As another apparatus for generating fine bubbles, an apparatus including a gas-liquid mixture pressurizing pump and a perforated plate unit has been proposed (see Patent Document 3). The perforated plate unit includes a tubular casing, a circular perforated plate transversely disposed in the casing and formed with a plurality of through holes, a half-moon shaped flow path control plate disposed adjacent to the perforated plate, and the flow. A motor that rotationally drives the road control plate. The gas-liquid mixture is pressurized with a pressure pump and flows into the through holes of the perforated plate, and fine bubbles are generated by the orifices of the through holes. By controlling the capacity of the pressure pump and the rotational position of the flow path control plate relative to the perforated plate, the flow rate of the gas-liquid mixture and the number of through-holes through which the gas-liquid mixture passes are controlled. The generation amount is controlled.
2006-334529 No. 2003-117365 2007-021392

  However, Patent Document 1 does not describe a specific configuration of an apparatus that generates fine bubbles.

  Further, in the fine bubble generating device of Patent Document 2, since the stirring blades that stir and mix the fluid of the gas-liquid mixing pump are densely arranged, when trying to process a liquid containing solids such as excess sludge, There is a risk of clogging between the stirring blades. Therefore, it is difficult to generate and mix fine bubbles in a liquid containing solids such as excess sludge.

  Further, the fine bubble generating device of Patent Document 3 requires a mechanism for controlling the driving of the pressurizing pump and the perforated plate unit, respectively, and there is an inconvenience that the structure and control are complicated and the cost is increased. In addition, in order to generate fine bubbles having a predetermined particle size, it is necessary to adjust the capacity of the pressurizing pump and the rotational position of the flow path control plate. Further, the porous plate of the porous plate unit may be clogged when trying to flow a liquid containing solid such as sludge. In addition, the flow path control plate of the perforated plate unit has a problem that the movable part is in contact with the fluid, so that it easily breaks down and the maintenance is troublesome.

  Therefore, the object of the present invention is to refine a multiphase fluid that can refine and mix not only liquid but also liquid that contains solid, and also can refine solid contained in liquid. It is to provide a mixing device. Another object of the present invention is to provide a multiphase fluid micronizing / mixing device that has a simple structure and can be manufactured at low cost. It is another object of the present invention to provide a multi-phase fluid micronizing / mixing device that can be easily controlled and can easily generate a predetermined micronized fluid. It is another object of the present invention to provide a miniaturized mixing device for a multiphase fluid that has substantially no moving parts in contact with the fluid, has few failures, and is easy to maintain.

In order to solve the above problems, the fine-mixing device for a multiphase fluid of the present invention comprises:
A casing,
A pump for pumping the first fluid;
A first supply pipe for supplying the first fluid pumped by the pump into the casing;
A second supply pipe for supplying a second fluid into the casing;
A suction mixing unit interposed in the first supply pipe and sucking and mixing the second fluid with the flow of the first fluid;
A suction pipe having one end opened in the casing and the other end connected to the suction mixing unit, and sucking the second fluid in the casing and leading the suction fluid to the suction mixing unit;
An injection unit that is provided at a tip of the first supply pipe and injects a mixed fluid of the first fluid and the second fluid mixed in the suction mixing unit into the casing;
A discharge pipe for discharging the mixed fluid of the first fluid and the second fluid out of the casing;
The opening of the injection part is arranged to face the convex part formed on the ceiling surface of the casing , and the mixed fluid that has been injected from the injection part and collided with the convex part is dispersed in the casing. It is characterized by being formed .

  According to the above configuration, the first fluid pumped by the pump is supplied to the casing through the first supply pipe, and the second fluid is supplied into the casing through the second supply pipe. When the first fluid is supplied to the casing, the second fluid introduced from the casing through the suction pipe is mixed with the first fluid in the suction mixing unit interposed in the first supply pipe. The first fluid and the second fluid mixed in the suction mixing unit are ejected from the ejection unit into the casing. The first fluid and the second fluid are effectively refined and mixed by the mixing operation in the suction mixing unit and the injection operation by the injection unit. Note that it is sufficient that the miniaturization can be performed on at least one of the first fluid and the second fluid. The mixed fluid injected into the casing is discharged out of the casing through the discharge pipe.

Here, the said pump should just be able to pump, for example, a liquid, a solid- liquid mixture, a gas-liquid mixture, or gas as a 1st fluid, In any case, the general pump corresponding to each fluid is used. be able to. Therefore, the processing target is not limited to gas and liquid as in the conventional fine bubble generating device including the gas-liquid mixing pump in which the stirring blades are densely arranged. That is, according to the present invention, when the first fluid is, for example, excess sludge and the second fluid is, for example, ozone, a general sludge pump may be used as the pump. Moreover, what is necessary is just to use a general ejector for a suction mixing part, for example. This ejector may be of a specification suitable for flowing excess sludge. In this case, a mixture fluid of refined ozone and surplus sludge is obtained by mixing ozone with surplus sludge with an ejector and injecting ozone and surplus sludge from an injection part. As described above, by using a pump and a suction mixing unit corresponding to the types of the first fluid and the second fluid, the various fluids can be miniaturized.

  In addition, since this multiphase fluid refinement mixing apparatus substantially does not require driving control except for the pump, the control accompanying the operation can be simplified and the control apparatus can be simplified. Therefore, it is possible to reduce the manufacturing cost of the miniaturization mixing apparatus.

  In addition, since this multiphase fluid refinement mixing device has substantially no movable parts in contact with the first fluid and the second fluid other than the pump, there are few failures and maintenance can be easily performed. it can.

As described above, the first fluid and the second fluid can be set to any combination obtained by selecting from the group consisting of a liquid, a solid- liquid mixture, a gas-liquid mixture, and a gas. In any case, the first fluid and the second fluid can be mixed while at least one of the first fluid and the second fluid is refined.

  According to the multiphase fluid refinement mixing apparatus of the present invention, for example, when the second fluid is a gas, fine bubbles of several tens of microns or less are obtained. The fine bubbles have a physical, chemical and physiological action due to a large surface area per unit volume, and can be used in various industrial fields.

  This miniaturized mixing apparatus for a multiphase fluid can be widely used for, for example, processing of harmful waste liquid, processing of slurry-like organic waste, promotion of reaction of substances, and the like.

According to another aspect of the present invention, an apparatus for refining a multiphase fluid is provided.
A multi-stage casing;
A pump for pumping the first fluid;
A first supply pipe for supplying the first fluid pumped by the pump into the casing of the first stage;
A second supply pipe for supplying the second fluid into at least the casing of the final stage;
A mixed fluid supply pipe provided in a casing of a stage other than the first stage, to which a mixed fluid of the first fluid and the second fluid is supplied from the preceding casing;
A suction mixing unit that is interposed in the first supply pipe and the mixed fluid supply pipe and sucks and mixes the second fluid with the flow of the first fluid;
A suction pipe having one end opened in the casing of each stage and the other end connected to the suction mixing unit of the casing, and sucking the second fluid in each casing and leading to the suction mixing unit;
An injection unit that is provided at the tip of the first supply pipe and the mixed fluid supply pipe and that injects the first and second fluids mixed in the suction mixing unit into the casing of each stage;
A connecting pipe that is provided in a stage other than the final stage, is connected to a mixed fluid supply pipe in a subsequent stage, and sends the mixed fluid of the first and second fluids in the casing of each stage to the subsequent stage side;
It is provided in the casing of the last stage, and is provided with the discharge pipe which discharges the mixed fluid of the 1st and 2nd fluid in this casing of the last stage.

  According to the above configuration, the first fluid pumped by the pump is supplied to the first stage casing through the first supply pipe, and the second fluid is supplied into at least the final stage casing through the second supply pipe. . The second fluid is sequentially supplied into the casing of each stage, for example, via a bypass pipe connected to the discharge pipe via a check valve. The second fluid may be directly supplied to each stage casing individually. First, in the first-stage casing, when the first fluid is supplied, the second fluid guided from the casing through the suction pipe is mixed with the first fluid by the suction mixing unit interposed in the first supply pipe. Is done. The first fluid and the second fluid mixed in the suction mixing unit are ejected from the ejection unit into the casing. The first fluid and the second fluid are effectively refined and mixed by the mixing operation in the suction mixing unit and the injection operation by the injection unit. Note that it is sufficient that the miniaturization can be performed on at least one of the first fluid and the second fluid. The mixed fluid injected into the first stage casing is discharged to the latter stage (for example, the next stage) casing through the discharge pipe. In the latter casing, the mixed fluid is guided to the mixed fluid supply pipe connected to the discharge pipe, the second fluid is further mixed with the mixed fluid in the suction mixing section, and is injected into the casing from the injection section. The mixed fluid subjected to such mixing action and jetting action is discharged from the discharge pipe.

  As described above, the mixed fluid generated in the first stage receives the mixing action of the second fluid by the suction mixing unit and the jetting action by the injection unit every time it is guided to the subsequent stage. Therefore, the first fluid and the second fluid At least one of them can be effectively miniaturized, and the first fluid and the second fluid can be mixed efficiently. For example, when the second fluid is a gas, ultrafine bubbles of 1 micron or less can be obtained in the final stage by receiving a multistage mixing action and a jetting action. Further, by forming the inner diameters of the suction mixing unit and the injection unit as small as the latter stage, even if the first fluid is a liquid containing solids such as excess sludge, the solids can be obtained without clogging the flow path. Can be made.

  The ultrafine particles or ultrafine bubbles obtained by the microphase mixing apparatus of the multiphase fluid of the present embodiment have a large surface area per unit volume, an extremely low floating speed in the liquid, and are difficult to disappear. Therefore, it has physical, chemical and physiological actions and can be used in various industrial fields. In addition, when the first fluid is, for example, a colloidal substance, the micronizing / mixing device according to the present embodiment can make the particles constituting the colloid fine so that the particle size does not cause the Tyndall phenomenon.

Moreover, the said pump should just be able to pump, for example, a liquid, a solid- liquid mixture, a gas-liquid mixture, or gas as a 1st fluid, In any case, the general pump corresponding to each fluid should be used. Can do. Therefore, the processing target is not limited to gas and liquid as in the conventional fine bubble generating device including the gas-liquid mixing pump in which the stirring blades are densely arranged. That is, according to the present invention, when the first fluid is, for example, excess sludge and the second fluid is, for example, ozone, a general sludge pump may be used as the pump. Moreover, what is necessary is just to use a general ejector for a suction mixing part, for example. This ejector may be of a specification suitable for flowing excess sludge. In this case, a mixture fluid of refined ozone and surplus sludge is obtained by mixing ozone with surplus sludge with an ejector and injecting ozone and surplus sludge from an injection part. As described above, by using a pump and a suction mixing unit corresponding to the types of the first fluid and the second fluid, the various fluids can be miniaturized.

  In addition, since this multiphase fluid refinement mixing apparatus does not require drive control except for the pump, the control accompanying the operation can be simplified. In addition to the pump, a mechanism for performing drive control is substantially unnecessary, so that the structure can be simplified and the cost can be reduced.

  In addition, since this multiphase fluid refinement mixing device has substantially no movable parts in contact with the first fluid and the second fluid other than the pump, there are few failures and maintenance can be easily performed. it can.

As described above, the first fluid and the second fluid can be set to any combination obtained by being selected from the group consisting of a liquid, a solid- liquid mixture, a gas-liquid mixture, and a gas. In any case, the first fluid and the second fluid can be mixed while at least one of the first fluid and the second fluid is refined.

  This miniaturized mixing apparatus for a multiphase fluid can be widely used for, for example, processing of hazardous waste liquid, processing of organic waste, promotion of reaction of substances, and the like. Specific examples of uses of this miniaturized mixing apparatus include water and sewage treatment, production of noodle-making process water, production of alkaline industrial process water, treatment of organic waste liquid, treatment of livestock blood, and the like.

  In the refined mixing apparatus for a multi-phase fluid according to an embodiment, the plurality of casings are arranged in the vertical direction, the lowermost casing is the first stage, and the uppermost casing is the final stage.

  According to the above embodiment, the first fluid is supplied to the lowermost casing to generate a mixed fluid, and this mixed fluid is sent to the upper rear casing to repeat mixing and injection with the second fluid. The mixed fluid is discharged from the uppermost casing, which is the final stage, through the discharge pipe. Since high head pressure acts on the mixed fluid in the initial stage, it is possible to efficiently promote the refinement of the fluid.

  In the refined mixing apparatus for a multi-phase fluid according to an embodiment, the plurality of casings are arranged in the vertical direction, the uppermost casing is the first stage, and the lowermost casing is the final stage.

  According to the embodiment, the first fluid is supplied to the uppermost casing to generate a mixed fluid, and the mixed fluid is sent to the lower rear casing to repeat the mixing and injection with the second fluid. The mixed fluid is discharged from the lowermost casing, which is the final stage, through the discharge pipe. Since the processing is performed by flowing the mixed fluid downward, the mixed fluid can be flowed down using gravity, so that a pump with a small output can be used.

  A refined mixing apparatus for a multi-phase fluid according to an embodiment is provided in a stage other than the first stage, connects the casing and the connection pipe in the previous stage, and has a bypass pipe interposed with a check valve. Is provided.

  According to the embodiment, at the start of operation, for example, the second fluid supplied from the second supply pipe into the final casing can be sent to the front casing through the bypass pipe and the connection pipe. In addition, when the operation ends, the mixed fluid remaining in the casing of each stage can be sent to the preceding casing through the bypass pipe and the connection pipe.

  In the refined mixing apparatus for a multi-phase fluid according to one embodiment, the plurality of casings are formed by arranging a plurality of casing rows in the horizontal direction, each including a plurality of casing rows arranged in the vertical direction. The second supply pipes are connected to the final casing.

  According to the above-described embodiment, a plurality of casings are configured by arranging a plurality of rows of casings each including a plurality of casings in the vertical direction. With respect to the plurality of rows of casing rows, the second fluid can be quickly supplied to each casing by supplying the second fluid to the last stage casing of each casing row via the second supply pipe. In each casing row, the lowermost stage may be arranged as the first stage, and the upper stage may be arranged as the subsequent stage, or the uppermost stage may be arranged as the first stage and the lower stage may be arranged as the subsequent stage.

  In the refined mixing apparatus for a multi-phase fluid according to an embodiment, the injection unit is formed so as to spray the mixed fluid to be injected onto an inner surface of the casing.

  According to the above embodiment, even if the components and bubbles contained in the first fluid and the second fluid adhere to the inner surface of the casing, the mixed fluid ejected from the ejection unit is sprayed on the inner surface of the casing. The attached components and bubbles can be washed away. Therefore, it is possible to prevent inconvenience that the adhered components and the like adhere to the inner side surface of the casing and remain.

  In the refined mixing apparatus for a multi-phase fluid according to one embodiment, the opening of the suction pipe is disposed close to the ceiling surface of the casing, and is ejected from the ejection unit to the ejection unit side. A shielding part for preventing inhalation of the mixed fluid is provided.

  According to the above embodiment, the second fluid in the casing is stably sent from the opening of the suction pipe to the suction mixing unit until the inside of the casing is filled with the mixed fluid. Here, the shielding portion can prevent the mixed fluid ejected from the ejection portion from being mixed into the second fluid and sucked into the suction pipe.

  In one embodiment, the first fluid is a liquid, and the second fluid is a gas.

  According to the above-described embodiment, by using a general liquid pump, a miniaturized mixing device having a simple structure is configured, and the second fluid is refined and mixed with the first fluid by simple operation control. Can be performed to produce a gas-liquid mixed fluid.

In one embodiment, the first fluid is a solid- liquid mixture and the second fluid is a gas.

According to the above embodiment, by using a general pump suitable for a solid- liquid mixture such as a mud pump, for example, for a solid- liquid mixture such as excess sludge or food waste, it is fine. A miniaturized mixing apparatus capable of generating and mixing bubbles is obtained. Moreover, refinement | miniaturization can be performed about the solid component of a solid- liquid mixture. Here, by forming the inner diameters of the suction mixing unit and the injection unit as small as later, the solidification can be reduced without causing clogging of the solid- liquid mixture.

  In the refined mixing apparatus for a multi-phase fluid according to one embodiment, an electrolytic device is interposed in the first supply pipe.

  According to the said embodiment, decomposition | disassembly of at least one of a 2nd fluid and a 1st fluid can be accelerated | stimulated by performing an electrolysis process with respect to a 1st fluid previously with an electrolysis apparatus.

In the refined mixing apparatus for a multiphase fluid according to an embodiment, the solid- liquid mixture is excess sludge, and the gas is ozone.

  According to the above-described embodiment, fine bubbles of ozone can be generated and mixed with surplus sludge, so that the surplus sludge is efficiently decomposed under simple operation control with a simple configuration. be able to.

According to another aspect of the present invention, there is provided a multiphase fluid refinement mixing method using a multiphase fluid refinement mixing apparatus including a plurality of casings and a plurality of suction mixing units corresponding to the respective casings. A refined mixing method of a multiphase fluid in which a first fluid and a second fluid are refined and mixed,
Supplying a second fluid into the casings of each stage and filling the second fluid into the casings of all stages ;
The mixed fluid of the first fluid and the second fluid supplied from the previous stage, the pre-filled by the second fluid in the inner casing of Tokoro Teidan, mixed with suction in the suction mixing section of predetermined stages mixing step When,
An injection step of injecting the mixed fluid, in which the second fluid is mixed in the suction mixing unit of the predetermined stage, into the casing of the predetermined stage pre-filled with the second fluid ;
A discharge step of discharging the mixed fluid injected and stored in the casing of the predetermined stage to the rear stage side;
And a cycle process in which the mixing process, the injection process, and the discharge process are sequentially repeated for each stage of the casing.

  According to the above configuration, the second fluid is supplied into the casing of each stage, the second fluid in the casing is mixed with the mixed fluid supplied from the previous stage in the suction mixing unit, and the second fluid is mixed. The fluid is injected into the casing, and the injected and stored mixed fluid is discharged from the casing to the rear stage side. By repeating the mixing process, the injection process, and the discharging process for the multiple-stage casing, at least one of the first fluid and the second fluid is refined by simple operation control using a refined mixing device having a simple configuration. Can be mixed with each other.

  According to the present invention, the first fluid pumped by the pump is mixed with the second fluid in the casing by the suction mixing unit of the first supply pipe, and the mixed fluid of the first fluid and the second fluid is injected into the injection unit. By injecting into the casing, at least one of the first fluid and the second fluid can be refined and mixed by the refinement device having a simple configuration and simple operation control.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram showing a multiphase fluid refinement mixing apparatus according to a first embodiment of the present invention. This refinement mixing apparatus 1 is a single tank type refinement mixing apparatus, which refines and mixes excess sludge as a first fluid and ozone as a second fluid and decomposes excess sludge. is there.

  The refined mixing apparatus 1 includes a casing 2, a pump 3 that pumps excess sludge, a first supply pipe 4 that feeds excess sludge pumped by the pump 3 into the casing 2, and ozone in the casing 2. A second supply pipe 5 to be supplied, an ejector 6 as a suction mixing unit provided in the first supply pipe 4, a suction pipe 7 connected to the ejector 6 and having a tip opened into the casing 2, 1 An injection nozzle 8 that is provided at the tip of the supply pipe 4 and injects a mixed fluid of excess sludge and ozone into the casing 2; and a discharge pipe 9 that discharges the mixed fluid of excess sludge and ozone to the outside of the casing 2. And is roughly composed.

  The casing 2 is formed of a sealed tank and accommodates an ejector 6, a suction pipe 7, and an injection nozzle 8. The suction pipe 7 has an opening for sucking ozone in the casing 2 formed at the tip, and this opening is disposed in a recess provided on the ceiling surface of the casing 2. The injection nozzle 8 injects a mixed fluid of sludge and ozone with cavitation to refine particles contained in the sludge and bubbles of ozone. The injection nozzle 8 has an injection opening disposed so as to face a convex portion provided on the ceiling surface of the casing 2. A return pipe 16 for returning the mixed fluid remaining in the casing 2 to the sludge tank 18 is connected to the bottom surface of the casing 2. An opening / closing valve 17 is interposed in the return pipe 16.

  The pump 3 sucks up the sludge held in the sludge tank 18 and pumps it to the casing 2 side, and is formed by a general sludge pump. As the pump 3, for example, a screw pump can be used, but the form is not limited as long as the liquid in which the solid is mixed can be pumped. Examples of other pumps include a turbine pump, a piston pump, and a ceramic (wetted part) pump. An electrolytic cell 11 is interposed in the first supply pipe 4 connected to the discharge side of the pump 3. The electrolytic cell 11 includes an ion exchange membrane 13 and generates hypochlorous acid to decompose organic substances. The electrolytic cell 11 may be another type of electrolytic cell such as one that adsorbs and aggregates phosphorus, nitrogen, or the like by an iron electrolysis method. The sludge is sent to the casing 2 after being treated on one electrode side separated by the ion exchange membrane 13 in the electrolytic cell 11.

  An opening / closing valve 41 for controlling the supply of sludge to the ejector 6 is provided downstream of the electrolytic tank 11 of the first supply pipe 4.

  The second supply pipe 5 is connected to an ozone generator 14 that generates ozone by silent discharge, and supplies ozone from the ozone generator 14 into the casing 2. An opening / closing valve 51 for controlling the supply of ozone into the casing 2 is interposed in the second supply pipe 5.

  The ejector 6 sucks the ozone in the casing 2 through the suction pipe 7 by the suction force associated with the sludge flow, and has a specification that allows the sludge particles to flow down without clogging. .

  The discharge pipe 9 is provided with an opening at the tip for sucking and discharging the mixed fluid of sludge and ozone held in the casing 2, and this opening is in a recess provided in the bottom surface of the casing 2. Is arranged.

  The sludge tank 18 holds sludge generated by the activated sludge method, and microorganisms and organic substances that have grown along with the decomposition by microorganisms are present in a colloidal form. The sludge in the sludge tank 18 is guided by the pump 3 to the casing 2 via the electrolytic tank 11, while the mixed fluid remaining in the casing 2 after the mixing treatment with ozone is returned by the return pipe 16 and circulated. Processing is possible. A circulation tank 19 is disposed inside the sludge tank 18, and the treated water on the other electrode side separated and collected by the ion exchange membrane 13 of the electrolytic tank 11 is held in the circulation tank 19 and circulated. Yes. In the circulation tank 19, a pump 12 that supplies treated water to the electrolytic tank 11 is provided.

  The miniaturization mixing apparatus 1 having the above-described configuration operates as follows. First, as shown in FIG. 2A, the on-off valve 51 of the second supply pipe 5 is opened, and ozone generated by the ozone generator 14 is supplied into the casing 2 and filled. At this time, the open / close valve 17 of the return pipe 16 communicating with the casing 2 is closed. In addition, an on-off valve (not shown) interposed in the discharge pipe 9 is closed.

  Thereafter, as shown in FIG. 2B, the on-off valve 51 is closed to stop the supply of ozone, while the pump 3 is activated to start the sludge pumping. Accompanying the operation of the pump 3, sludge is guided to the ejector 6 through the electrolytic cell 11. In the ejector 6, a negative pressure is generated along with the flow of sludge, and due to this negative pressure, the ozone filled in the casing 2 is sucked from the opening of the suction pipe 7 and mixed with the sludge. The sludge and ozone mixed by the ejector 6 are sprayed from the spray nozzle 8 and dispersed in the casing 2. Sludge and ozone are refined by the spray action of the spray nozzle 8. Ozone becomes fine bubbles (microbubbles) having a diameter of several tens of microns due to miniaturization. Sludge increases the surface area of particles due to miniaturization, which promotes oxidation by ozone and is efficiently decomposed.

  The mixed fluid of sludge and ozone sprayed by the spray nozzle 8 is sprayed on a convex portion of the ceiling surface of the casing 2, thereby being dispersed over a relatively wide area in the casing 2. In addition, since the mixed fluid is sprayed on the inner surface of the casing 2, even if sludge components or ozone bubbles adhere to the inner surface, the adhering matter is quickly washed away. Can be prevented. Moreover, since the opening of the suction pipe 7 for sucking ozone is disposed in the recess in the casing 2, the mixed fluid ejected from the ejection nozzle 8 is prevented from being sucked into the suction pipe 7. Thus, the recessed part in which the opening of the suction pipe 7 of the casing 2 is disposed functions as a shielding part. In addition, the mixed fluid is mixed into the suction pipe 7 by arranging a plate member as a shielding part on the ceiling surface so as to be positioned between the injection nozzle 8 and the opening of the suction pipe 7 without forming a concave portion. May be prevented.

  As the mixed fluid injected from the injection nozzle 8 accumulates in the casing 2, the pressure in the casing 2 rises, and thereby the mixed fluid is discharged from the casing 2 via the discharge pipe 9.

  When the mixed fluid is continuously injected into the casing 2 and the inside of the casing 2 reaches the full water level, the sludge pumping by the pump 3 is stopped as shown in FIG. 41 is closed.

  Thereafter, as shown in FIG. 3 (b), the on-off valve 51 of the second supply pipe 5 is opened to supply the ozone generated by the ozone generator 14 into the casing 2, and the return pipe communicating with the casing 2. 16 on-off valve 17 is opened. The mixed fluid is discharged from the casing 2 by the supply pressure of ozone and the head pressure of the mixed fluid.

  When the discharge of the mixed fluid in the casing 2 is completed, the process returns to the step of FIG. In this way, the sludge and ozone are mixed and refined by repeating the steps of FIGS. 2 (a) to 3 (b).

  According to the fine mixing device 1 of the first embodiment, the pump 3 can employ a general sludge pump. Therefore, a pump having a special structure is not required, unlike a conventional microbubble generating apparatus having a gas-liquid mixing pump in which stirring blades are closely arranged. Moreover, what is necessary is just to use the thing of the specification suitable for flowing the excess sludge for the ejector 6. FIG. Therefore, the miniaturization mixing apparatus 1 of the present embodiment can be manufactured at a relatively low cost by using general components. Further, since the fine mixing device 1 does not require driving control except for the pump 3, the control accompanying the operation can be simplified and the control device can be simplified. Furthermore, since the refined mixing apparatus 1 of the present embodiment has substantially no movable parts that come into contact with sludge and ozone other than the pump 3, there are few failures and maintenance can be easily performed.

(Second Embodiment)
FIG. 4 is a schematic view showing a multiphase fluid refinement mixing apparatus according to a second embodiment of the present invention. This refinement mixing device 20 is a double tank type refinement mixing device, and is the first in that the excess sludge as the first fluid and the ozone as the second fluid are refined and mixed to decompose the excess sludge. Although it is the same as that of embodiment, the point which can further refine | miniaturize differs from 1st Embodiment. In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The miniaturization mixing apparatus 20 includes a plurality of casings 21, 22, 23, 24, and 25 that are laminated in the vertical direction and are integrally formed. In the casings 21,..., 25, the lowermost casing 21 is the first stage, and the sludge pumped by the pump 3 is supplied to the first stage casing 21 via the first supply pipe 4. The The uppermost casing 25 among the plurality of casings 21,..., 25 is the final stage, and the mixed fluid of sludge and ozone is discharged from the final stage casing 25 through the discharge pipe 9. .

  Each casing 21,..., 25 is provided with ejectors 61, 62, 63, 64, 65 and suction pipes 71, 72, 73, 74, 75 connected to the ejectors 61,. It has been. The first-stage ejector 61 is interposed in the first supply pipe 4, and an injection nozzle 81 is provided at the tip of the first supply pipe 4. The second to fifth stage ejectors 62, 63, 64, 65 are interposed in the mixed fluid supply pipes 102, 103, 104, 105 to which the mixed fluid is supplied from the previous stage. , 104, 105 are provided with injection nozzles 82, 83, 84, 85, respectively. Each of the mixed fluid supply pipes 102, 103, 104, 105 is connected to connecting pipes 111, 112, 113, 114 which are arranged in the front casings 21, 22, 23, 24 and send the mixed fluid in the casing to the rear stage. Yes. For the stages other than the first stage, there are bypass pipes 122, 123, 124, 125 that open to the bottom surfaces of the casings 22, 23, 24, 25 of each stage and are connected to the connection pipes 111, 112, 113, 114 of the previous stage. Is provided. Each bypass pipe 122, 123, 124, 125 is provided with check valves 132, 133, 134, 135. The bypass pipes 122, 123, 124, 125 and the check valves 132, 133, 134, 135 are disposed in the front casings 21, 22, 23, 24, respectively.

  The miniaturization mixing apparatus 20 of the present embodiment operates as follows. First, the open / close valve 51 of the second supply pipe 5 is opened in a state where the casings 21,..., 25 in all stages are empty, and the ozone generated by the ozone generator 14 is converted into the fifth (final) casing 25. To supply. At this time, the on-off valve 17 of the return pipe 16 is closed. In addition, an on-off valve (not shown) interposed in the discharge pipe 9 is closed. By continuing the supply of ozone by the ozone generator 14, ozone flows into the bypass pipe 125 opened in the bottom surface of the fifth stage casing 25, passes through the check valve 135, and passes through the connecting pipe 114. Guided to the stage casing 24. Further, ozone is guided from the fourth stage casing 24 to the third stage casing 23 via the bypass pipe 124, the check valve 134 and the connection pipe 113. Further, ozone is sequentially introduced to the second and first stage casings 22 and 21 via the bypass pipes 123 and 122, the check valves 133 and 132, and the connection pipes 112 and 111. Thus, when the casings 21,..., 25 are filled with ozone, the on-off valve 51 is closed to stop the supply of ozone, while the pump 3 is activated to start the sludge pumping.

  When the operation of the pump 3 is started, the sludge is guided to the ejector 61 in the first stage casing 21 via the electrolytic cell 11. Due to the negative pressure generated as the sludge flows through the ejector 61, the ozone in the casing 21 is sucked through the suction pipe 71 and mixed with the sludge, and the mixed fluid of sludge and ozone thus generated is mixed with the ejector 61. It is injected into the casing 21 from the injection nozzle 81 on the downstream side. The sludge particles and the bubbles of ozone are refined by cavitation that occurs in the mixed fluid with the injection from the injection nozzle 81. Oxidation of sludge by ozone is promoted by making the sludge particles finer and increasing the surface area. When the mixed fluid accumulated in the first-stage casing 21 increases, the pressure in the casing 21 rises, whereby the mixed fluid flows into the second-stage mixed fluid supply pipe 102 through the connection pipe 111.

  The mixed fluid guided to the second-stage mixed fluid supply pipe 102 flows through an ejector 62 interposed in the mixed-fluid supply pipe 102, and the ozone in the second-stage casing 22 is similar to the first stage. Inhaled through the suction pipe 72, ozone is further mixed into the mixed fluid. Further, the mixed fluid mixed with ozone is injected into the casing 22 from the injection nozzle 82 on the downstream side of the ejector 62. When sprayed from the spray nozzle 82, sludge particles and ozone bubbles are further refined.

  Such a mixing action and an injection action of sludge and ozone are repeated until reaching the fifth stage casing 25. As a result, in the fifth-stage casing 25, sludge particles and ozone bubbles are greatly refined. In particular, ozone becomes ultrafine bubbles (nanobubbles) having a diameter of 200 nm or less. The reason why high-level miniaturization is possible by the micro-mixing device 20 of the present embodiment is that water head pressure acts in the lower casings 21, 22,..., And mixing and injection are performed in a plurality of stages. It is possible. Sludge can be stably oxidized and decomposed by the ultrafine bubbles of ozone generated in this way. Moreover, generation | occurrence | production of harmful substances, such as a trihalomethane, can be suppressed.

  As shown in FIG. 4, when the mixed fluid of sludge and ozone is stored in all the first to fifth casings 21,..., 25, from the fifth casing 25 which is the final stage, The mixed fluid mixed with ultrafine bubble ozone is discharged by the discharge pipe 9. The discharged mixed fluid is returned into the sludge tank 18 as indicated by an arrow R, and is circulated by the fine mixing device 20. Alternatively, the mixed fluid after the processing by the miniaturization mixing apparatus 20 may be guided to another processing step by the discharge pipe 9.

  Thereafter, as shown in FIG. 5, the on-off valve 51 of the second supply pipe 5 is opened to supply the ozone generated by the ozone generator 14 into the casing 25 of the fifth stage which is the final stage, and the first The on-off valve 17 of the return pipe 16 communicating with the stage casing 21 is opened. By the ozone supply pressure and the head pressure of the mixed fluid, the bypass pipes 125, 124, 123, 122, the check valves 135, 134, 133, 132 and the connection pipes 114, 113, 112, Via 111, the mixed fluid is sequentially discharged to the fourth, third, second and first stage casings 24, 23, 22 and 21. The mixed fluid is returned from the first stage casing 21 to the sludge tank 18 through the return pipe 16. When the mixed fluid is discharged from the casings 21,..., 25 in all stages and the respective casings 21,..., 25 are filled with ozone, the on-off valves 17, 51 are closed and Start pumping. In this way, the process shown in FIG. 4 and the process shown in FIG. 5 are repeated to perform the sludge decomposition process using the ultrafine bubbles of ozone.

  According to the second embodiment, the pump 3 formed by a general sludge pump or the like is used, and the general ejectors 61,... 81,..., 85 are arranged to form the micronizing and mixing device 20, thereby generating ozone ultrafine bubbles with a relatively simple structure without using a pump having a special structure. Advanced decomposition of sludge can be performed.

  In the present embodiment, the first to fifth casings 21,..., 25 are installed, but the number of casings is not limited to five, and two or more desired stages can be installed. Moreover, although ozone was supplied to the casing 25 of the 5th stage of the last stage, you may supply ozone separately to the casings 21, ..., 25 of each stage. Moreover, although the mixed fluid was discharged | emitted from the casing 21 of the 1st step | paragraph, you may discharge | release a mixed fluid separately from the casings 21 ... 25 of each step | paragraph. In addition, the ejectors 61,..., 65 and the injection nozzles 81,..., 85 in each stage have the same inner diameter, but ejectors having smaller inner diameters are used in the rear ejector and the injection nozzle. May be. Thereby, clogging of sludge particles can be effectively prevented, and the ultrafine ozone can be promoted more efficiently. Further, the plurality of casings 21,..., 25 may not be arranged on a straight line, and may not be formed integrally. In short, it is only necessary that the lower casing is arranged at a higher position so that a high head pressure can be obtained in the lower casing.

(Third embodiment)
FIG. 6 is a schematic view showing a multiphase fluid refinement mixing apparatus as a third embodiment of the present invention. This refinement mixing device 30 is a double-tank double-row refinement mixing device, and includes two casing rows 31 and 32 composed of a plurality of casings arranged in the vertical direction. This refinement mixing apparatus also refines and mixes excess sludge and ozone to decompose excess sludge. In the present embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  This miniaturization mixing device 30 includes a first casing row 31 and a second casing row 32, and each casing row 31, 32 has first to fifth stages of casings 21, 22, 23, 24 and 25 are laminated and formed integrally. Configurations of the first to fifth casings 21, 22, 23, 24, and 25 of the casing rows 31 and 32 are substantially the same as those of the second embodiment. The discharge pipe 9 of the fifth stage casing 25, which is the final stage of the first casing row 31, is connected to the first supply pipe 304 of the first stage casing 21 of the second casing row 32. An opening / closing valve 341 is interposed in the first supply pipe 304. The fluid mixture refined and mixed in the first casing row 31 is supplied to the first supply pipe 304 of the second casing row 32. A return pipe 316 communicates with the bottom surface of the first-stage casing 21 of the second casing row 32, and the return pipe 316 of the second casing row 32 is connected to the return of the first casing row 31 via the on-off valve 317. Connected to the tube 16. Further, the fifth stage casing 25 of the second casing row 32 is connected to the second supply pipe 305, and this second supply pipe 305 is connected to the second supply pipe 5 of the first casing row 31 to generate ozone. Ozone from the device 14 is supplied. An open / close valve 351 is interposed in the second supply pipe 305 of the second casing row 32.

  In the refined mixing device of the present embodiment, the five ejectors 61, 62, 63, 64, 65 of the first casing row 31 and the injection nozzles 81, 82, 83, 84, 85 is further refined and mixed with ozone. Further, the five ejectors 61, 62, 63, 64, and 65 of the second casing row 32 and the spray nozzles 81, 82, 83, 84, and 85 are further refined and mixed. I do. Therefore, the sludge and ozone can be refined extremely highly, and the decomposition of the sludge can be promoted to a high degree. The ejectors 61, 62, 63, 64, 65 and the injection nozzles 81, 82, 83, 84, 85 may have different specifications for each of the casing rows 31, 32.

  Further, ozone can be supplied quickly by supplying ozone to the casing rows 31 and 32 through the two second supply pipes 5 and 305. Further, by discharging the mixed fluid from the casing rows 31 and 32 through the return pipes 16 and 316, the mixed fluid can be quickly discharged.

  In the present embodiment, the number of casing rows is not limited to two rows, and three or more rows may be provided.

(Fourth embodiment)
FIG. 7 is a schematic diagram showing a multiphase fluid refinement mixing apparatus according to a fourth embodiment of the present invention. This refinement mixing apparatus 40 is a continuous operation type refinement mixing apparatus, and refinement mixing apparatus units 45 and 46 similar to the double-tank double row refinement mixing apparatus 30 of the third embodiment are arranged in parallel. Two are connected. In this embodiment, the same components as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  Ozone is supplied from the same ozone supply device 14 to the refinement mixing device units 45 and 46 included in the continuous operation type refinement mixing device 40. The mixed fluid discharged from the final stage 25 of the second casing row 32 of each unit 45, 46 passes through a merged discharge pipe 47 formed by joining the discharge pipes 9 of each unit 45, 46 as indicated by an arrow M. The units 45 and 46 are distributed and supplied to the sludge tank 18.

  Similarly to the third embodiment, the units 45 and 46 are configured to supply ozone to the casings 21,..., 25, ejectors 61,. The mixed fluid generation step and the mixed fluid discharge step from the casings 21,. The mixed fluid can be generated at short time intervals by operating the processes in such a manner that the units 45 and 46 are shifted from each other. Therefore, the continuous operation type refinement mixing apparatus of the present embodiment can stably perform the sludge decomposition treatment.

(Fifth embodiment)
FIG. 8 is a schematic diagram showing a multiphase fluid refinement mixing apparatus as a fifth embodiment of the present invention. This refined mixing apparatus 50 is a double tank type refined mixing apparatus in which casings are stacked in the vertical direction, and the second embodiment is that the uppermost casing is the first stage and the lower casing is the latter stage. And different. In the present embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  This miniaturization mixing apparatus includes a plurality of casings 521, 522, 523, 524, and 525 that are laminated in the vertical direction and formed integrally. In the casings 521,..., 525, the uppermost casing 521 is the first stage, and the lowermost casing 525 is the fifth stage (final stage).

  The sludge pumped by the pump 3 is directly supplied to the first stage casing 521 via the first supply pipe 4. On the other hand, the branch pipes 551, 552, 553, 554, and 555 of the second supply pipe 550 connected to the ozone generator 14 are connected to the casings 521,. Each of the second supply pipes 551,..., 555 is provided with a check valve. The fifth stage casing 525 is provided with a discharge pipe 9 for discharging the mixed fluid.

  Each casing 521,..., 525 is provided with ejectors 61, 62, 63, 64, 65, and suction pipes 71, 72, 73, 74, 75 connected to the ejectors 61,. It has been. The first-stage ejector 61 is interposed in the first supply pipe 4, and an injection nozzle 81 is provided at the tip of the first supply pipe 4. Most of the first-stage ejector 61 and the suction pipe 71 are disposed outside the casing 521. The distal end portion of the first supply pipe 4 and the injection nozzle 81 are disposed in the vicinity of the ceiling surface in the first stage casing 521.

  The second to fifth stage ejectors 62, 63, 64, 65 are arranged in the preceding casings 521,..., 524, and the mixed fluid is supplied from the preceding casings 521,. Are connected to connecting pipes 111, 112, 113, and 114. The distal ends of the connecting pipes 111, 112, 113, 114 are arranged in the vicinity of the ceiling surface in the casings 522,..., 525 of the next stage, and are connected to the distal ends of the connecting pipes 111, 112, 113, 114. The spray nozzles 82, 83, 84, and 85 are respectively provided.

  The injection nozzles 81,..., 85 arranged in the vicinity of the ceiling surface in the respective casings 521,..., 525 have the injection ports directed downward, and are partially spherically facing the injection ports. 581, 582, 583, 584, 585 are provided. With the spreading plates 581,..., 585, the mixed fluid jetted from the jetting ports is spread over a wide range in the casings 521,.

  In addition to the pump 3 that pumps sludge to the first supply pipe 4, the sludge tank 18 is provided with a starter pump 504 that pumps sludge to the third supply pipe 530. The third supply pipe 530 to which sludge is pumped by the starter pump 504 is connected to the respective casings 521, 522, 523, 524, 525 via branch pipes 531, 532, 533, 534, 535. When starting the mixing process, a predetermined amount of sludge is supplied in advance to all casings 521,..., 525 from start pump 504 through third supply pipe 530 and branch pipes 531,. I have to. In the third supply pipe 530, the liquid detector 541 for detecting the presence of sludge, and the sludge in the third supply pipe 530 and the branch pipes 531, ..., 535 are transferred to the casings 521, 522, 523, 524, 525. A pressure air generation device 542 that generates pressure air to be sent is connected.

  The miniaturization mixing apparatus 50 of this embodiment operates as follows. First, as shown in FIG. 8, the starter pump 504 is driven in a state where the casings 521,..., 525 of all stages are filled with ozone, and the third supply pipe 530 and the branch pipes 531,.・ Fill 535 with sludge. When the liquid detector 541 detects that the third supply pipe 530 and the branch pipes 531,..., 535 are filled with sludge, the pressure air generator 542 is driven. Thereby, the sludge in a pipe | tube is extruded to all the casings 521, ..., 525, and as shown in FIG. 9, a predetermined amount of sludge is supplied to each casing 521, ..., 525. Thereafter, the pump 3 is activated to start sludge pumping.

  When the operation of the pump 3 is started, as shown in FIG. 10, the sludge is guided to the first stage ejector 61, and the ozone in the first stage casing 521 is sucked through the suction pipe 71 and mixed with the sludge. The mixed fluid of sludge and ozone generated thereby is injected from the injection nozzle 81 into the first stage casing 521. The mixed fluid in the first-stage casing 521 flows into the second-stage ejector 62 through the connection pipe 111, and the ozone in the second-stage casing 522 is sucked through the suction pipe 72, and further into the mixed fluid. Ozone is mixed. The mixed fluid in which ozone is further mixed is injected from the injection nozzle 82 into the second stage casing 522.

  Such a mixing action and a jetting action of sludge and ozone are repeated until reaching the lowermost fifth stage casing 525, and the mixed fluid in the fifth stage casing 525 passes through the discharge pipe 9 to the mixed liquid tank 505. Led to.

  When all the stages 521,..., 525 are filled with the mixed fluid, the operation of the pump 3 is stopped, and the inside of the sludge tank 18 is passed through the branch pipes 531, 532, 533, 534, 535 and the third supply pipe 530. To discharge the mixed fluid. Here, the ozone from the ozone generator 14 is supplied to the casings 521,..., 525 of all stages through the second supply pipe 550 and the branch pipes 551, 552, 553, 554, 555, thereby mixing. The fluid is extruded to replace the inside of the casings 521,. FIG. 11 shows a state in which the discharge of the mixed fluid in the casings 521,.

  The mixed fluid is sequentially generated by repeating the steps shown in FIGS. 8 to 11, and sludge is decomposed by ozone.

  According to the refined mixing apparatus 50 of the present embodiment, the first stage casing is at the uppermost position, and the rear casing is located below, so that the water head difference can be used to flow the mixed fluid to the rear stage side. The pump 3 for pumping sludge can be reduced in size.

  In the present embodiment, the number of casing stages is not limited to five. Further, a plurality of micronization mixing devices 50 of this embodiment may be connected to form a double column type micronization mixing device as in the third embodiment. Moreover, you may form the continuous operation type | mold refinement | mixing apparatus like 4th Embodiment.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to said each embodiment, A various deformation | transformation is possible. For example, the ejectors 6, 61,... 65 are not necessarily arranged in the casings 2, 21,. In addition, a part of the suction pipes 7, 71,..., 75 may be disposed outside the casings 2, 21,. Moreover, the electrolytic cell 11 may be deleted and the sludge in the sludge tank 18 may be directly pumped to the ejectors 6 and 61.

  In addition, the ejectors 6, 61,... 65 are not limited to general ejectors, and may take various forms as long as ozone is sucked and mixed with a negative pressure generated by a sludge jet. In short, as long as there is no movable part and the second fluid is sucked and mixed with the first fluid by the flow of the first fluid, the form of the suction mixing part is not limited.

  Moreover, although each said embodiment demonstrated the process which oxidizes and decomposes | disassembles excess sludge with ozone as an oxidizing agent, air, oxygen, ozone, chlorine, bromine, and iodine can be used as the oxidizing agent. Further, excess sludge may be reduced and decomposed with a reducing agent. As the reducing agent, hydrogen, hydrogen iodide, hydrogen sulfide, ammonia, carbon monoxide, or the like can be used. In any case, it is preferable to use a substance that contains an oxidizing agent and a reducing agent and is gaseous at normal temperature and pressure.

  Moreover, although each said embodiment demonstrated the case where the surplus sludge by an activated sludge process was processed with ozone, the refinement | mixing apparatus of the multiphase fluid of this invention is not limited to the use of the process of a surplus sludge. For example, it can be widely used for the treatment of hazardous waste such as PCB (polychlorinated biphenyl), PVC (polyvinyl chloride), and chlorofluorocarbon, and the treatment of organic waste in the food industry. Further, the present invention is not limited to the treatment of waste, and can be used for the production of treated water used in the production process and the production of liquid products. Examples of these applications are river, lake, groundwater and soil purification. In addition, there are product processing and wastewater treatment in various industrial fields such as chemistry, steel, leather, printing, ceramics, metal processing, dyeing and plating. Moreover, it can also be used for the treatment of the heat medium in cooling, temperature control, a boiler, etc., and the miscellaneous water used for flush toilet, sewage, human waste treatment, watering, etc. It can also be used for the maintenance and management of agricultural adjustment ponds, the generation of organic pollution in paddy fields, hydroponic cultivation, the treatment of aquaculture water for aquaculture, feed production water, etc. it can. It can also be used for the production of functional water such as sterilizing water, ozone water, seasoning water, brewery water, hazardous substance removal water, and other water products such as food washing and container equipment washing water.

The first fluid is not limited to a solid- liquid mixture such as excess sludge, and may be any of a gas-liquid mixture, a liquid, and a gas. Further, the second fluid is not limited to a gas such as ozone, and may be any of a solid- liquid mixture, a gas-liquid mixture, and a liquid.

It is a schematic diagram which shows the refinement | mixing mixing apparatus of the multiphase fluid of 1st Embodiment. FIGS. 2A and 2B are schematic views showing the operation of the miniaturization mixing apparatus of the first embodiment. FIGS. 3A and 3B are schematic views showing the operation of the miniaturization mixing apparatus of the first embodiment. It is a schematic diagram which shows the double tank type refinement | mixing refinement | mixing apparatus of 2nd Embodiment. It is a schematic diagram which shows the mode of operation | movement of the miniaturization mixing apparatus of 2nd Embodiment. It is a schematic diagram which shows the double tank double row-type refinement | mixing mixing apparatus of 3rd Embodiment. It is a schematic diagram which shows the continuous operation-type refinement | mixing mixing apparatus of 4th Embodiment. It is a schematic diagram which shows the double tank type refinement | miniaturization mixing apparatus of 5th Embodiment. It is a schematic diagram which shows the mode of operation | movement of the refinement | mixing mixing apparatus of 5th Embodiment. It is a schematic diagram which shows the mode of operation | movement of the refinement | mixing mixing apparatus of 5th Embodiment. It is a schematic diagram which shows the mode of operation | movement of the refinement | mixing mixing apparatus of 5th Embodiment.

Explanation of symbols

1, 20, 30, 40, 50 Fine mixing device 2, 21, 22, 23, 24, 25, 521, 522, 523, 524, 525 Casing 3 Pump 4,304 First supply pipe 5,305 Second supply Pipe 6, 61, 62, 63, 64, 65 Ejector 7, 71, 72, 73, 74, 75 Suction pipe 8, 81, 82, 83, 84, 85 Injection nozzle 9 Exhaust pipe 14 Ozone generator 18 Sludge tank 16 Return pipe 111, 112, 113, 114 Connecting pipe 122, 123, 124, 125 Bypass pipe

Claims (13)

A casing,
A pump for pumping the first fluid;
A first supply pipe for supplying the first fluid pumped by the pump into the casing;
A second supply pipe for supplying a second fluid into the casing;
A suction mixing unit interposed in the first supply pipe and sucking and mixing the second fluid with the flow of the first fluid;
A suction pipe having one end opened in the casing and the other end connected to the suction mixing unit, and sucking the second fluid in the casing and leading the suction fluid to the suction mixing unit;
An injection unit that is provided at a tip of the first supply pipe and injects a mixed fluid of the first fluid and the second fluid mixed in the suction mixing unit into the casing;
A discharge pipe for discharging the mixed fluid of the first fluid and the second fluid out of the casing;
The opening of the injection part is arranged to face the convex part formed on the ceiling surface of the casing , and the mixed fluid that has been injected from the injection part and collided with the convex part is dispersed in the casing. miniaturization mixing device of the double-phase fluid characterized in that it is formed. A multi-stage casing;
A pump for pumping the first fluid;
A first supply pipe for supplying the first fluid pumped by the pump into the casing of the first stage;
A second supply pipe for supplying the second fluid into at least the casing of the final stage;
A mixed fluid supply pipe provided in a casing of a stage other than the first stage, to which a mixed fluid of the first fluid and the second fluid is supplied from the preceding casing;
A suction mixing unit that is interposed in the first supply pipe and the mixed fluid supply pipe and sucks and mixes the second fluid with the flow of the first fluid;
A suction pipe having one end opened in each stage casing and the other end connected to the suction mixing unit, and sucking the second fluid in each casing and leading the suction fluid to the suction mixing unit;
An injection unit that is provided at the tip of the first supply pipe and the mixed fluid supply pipe and that injects the first and second fluids mixed in the suction mixing unit into the casing of each stage;
A connecting pipe that is provided in a stage other than the final stage, is connected to a mixed fluid supply pipe in a subsequent stage, and sends the mixed fluid of the first and second fluids in the casing of each stage to the subsequent stage side;
An apparatus for finely mixing a multiphase fluid, comprising a discharge pipe provided in a final casing and discharging a mixed fluid of the first and second fluids in the final casing. The finely mixed apparatus for a multiphase fluid according to claim 2,
The above-mentioned plurality of casings are arranged in the vertical direction, the lowest casing is the first stage, and the uppermost casing is the final stage, and the finely mixed apparatus of the multiphase fluid is characterized in that: The finely mixed apparatus for a multiphase fluid according to claim 2,
The above-mentioned plurality of casings are arranged in the vertical direction, the uppermost casing is the first stage, and the lowermost casing is the final stage. The fine-mixing device for a multiphase fluid according to claim 3,
Provided in a stage other than the first stage and connected to the casing and the connecting pipe in the previous stage, and provided with a bypass pipe provided with a check valve, the refined mixing of the multiphase fluid apparatus. The finely mixed apparatus for a multiphase fluid according to claim 2,
The multi-stage casing includes a plurality of multi-stage casings arranged in the vertical direction. The second supply pipe is connected to the last-stage casing of each casing line. A refined mixing apparatus for a multiphase fluid, characterized in that: In the refined mixing device of the multiphase fluid according to any one of claims 1 to 6,
The said injection part is formed so that the said mixed fluid to inject may be sprayed on the inner surface of a casing, The refinement | mixing apparatus of the multiphase fluid characterized by the above-mentioned. The refined mixing apparatus of the multiphase fluid according to claim 7,
The opening of the suction pipe is disposed in the vicinity of the ceiling surface of the casing, and further includes a shielding part on the side of the jetting part that prevents the mixed fluid jetted from the jetting part from being sucked. A miniaturized mixing device for multiphase fluids. In the miniaturization mixing device of the multiphase fluid according to any one of claims 1 to 8,
The first fluid is a liquid, and the second fluid is a gas. In the miniaturization mixing device of the multiphase fluid according to any one of claims 1 to 8,
The multi-phase fluid refinement mixing apparatus, wherein the first fluid is a solid- liquid mixture and the second fluid is a gas. In the refined mixing device of the multiphase fluid according to any one of claims 1 to 10,
An electrolysis apparatus is interposed in the first supply pipe. The microphase mixing apparatus for a multiphase fluid according to claim 10,
The solid- liquid mixture is excess sludge, and the gas is ozone. A multi-phase fluid that refines and mixes the first fluid and the second fluid using a multi-phase fluid refinement mixing device including a plurality of casings and a plurality of suction mixing units corresponding to the respective casings. A refined mixing method,
Supplying a second fluid into the casings of each stage and filling the second fluid into the casings of all stages ;
The mixed fluid of the first fluid and the second fluid supplied from the previous stage, the pre-filled by the second fluid in the inner casing of Tokoro Teidan, mixed with suction in the suction mixing section of predetermined stages mixing step When,
An injection step of injecting the mixed fluid, in which the second fluid is mixed in the suction mixing unit of the predetermined stage, into the casing of the predetermined stage pre-filled with the second fluid ;
A discharge step of discharging the mixed fluid injected and stored in the casing of the predetermined stage to the rear stage side;
And a cycle process for sequentially repeating the mixing process, the injection process, and the discharging process for each stage of the casing.

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