JP2004073953A - Apparatus for agitating-and-mixing gas and liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently dissolve a gas into a liquid in a wide range of the liquid by efficiently agitating_and_mixing the gas and the liquid and making the mixture of the gas and the liquid reachable a remote place in the liquid. <P>SOLUTION: An apparatus for agitating-and-mixing gas and liquid has an agitation cylinder 20 haing an upper end part for introducing the gas and a lower end opened in the liquid, a rotary shaft 19 attached coaxially to the agitation cylinder 20, having an extended lower end and rotated at a high speed, an impeller 23 fixed to the lower end of the rotary shaft 19 and protrusively provided with an agitation blade piece 25 formed on the upper surface and a diffusion blade piece 26 formed on the lower surface of the shaft 19, and the impeller 23 is rotatably assembled in a clearance formed between the inside surface of the tube wall part of a main body part and the peripheral edge of the main body disk 24 to constitute a pump function part. The apparatus is constituted of the pump function part and a casing body K which is fixed to the lower end of the agitation cylinder 20, and a liquid introduction port is opened in the lower surface, and a release opening is opened in the cross direction. The mixture of the gas and the liquid is put on a liquid flow and released vigorously. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a stirring and mixing device for mixing a liquid and a gas, in which a gas such as air is efficiently and largely dissolved in a liquid.
[0002]
[Prior art]
A technique disclosed in Japanese Patent Application Laid-Open No. 2000-5583, which is one of the conventional techniques for agitating and mixing a liquid and a gas, is a housing immersed in a liquid and communicating with a gas, and a rotary motor for reducing the pressure in the housing. Fluid, and the housing has a liquid inlet for introducing a liquid, and a gas-liquid outlet for discharging gas and liquid, and the gas-liquid outlet is drilled at a position against the flow by the rotating electromotive fluid. It is the configuration that was done.
[0003]
In this prior art, since the inside of the housing is decompressed by the rotation of the rotating electromotive fluid to form a negative pressure region, gas and liquid are sucked into the housing, and then the sucked gas and liquid are separated by the rotating electromotive fluid. , And dispersed and released into the solution through a gas-liquid discharge port provided in the housing, whereby the gas is dissolved in the solution.
[0004]
At this time, the rotating fluid serves to stir and mix the gas and the liquid, and at the same time, discharges the mixture of the gas and the liquid to the outside of the housing.
[0005]
[Problems to be solved by the invention]
However, in the prior art described above, the gas and the liquid are mixed by the rotating electromotive fluid, and the mixture is dispersed and released into the liquid. There is a problem that the discharge of the mixture tends to be insufficient, and conversely, if the discharge of the mixture is increased, the gas and the liquid cannot be sufficiently mixed.
[0006]
In addition, since the rotating motive fluid releases a mixture that is a compressible substance into a liquid that is an incompressible substance, even if a large discharge power is given to the mixture, the resistance of the liquid to the release is extremely large. Therefore, there was a problem that the mixture could not reach a distant place in the liquid.
[0007]
Therefore, the present invention has been made in order to solve the above-described problems in the conventional technology, and efficiently mixes a gas and a liquid with stirring, and allows the mixture of the gas and the liquid to reach a distant place in the liquid. It is an object of the present invention to achieve efficient dissolution of a gas into a liquid and to achieve this dissolution over a wide range of the liquid.
[0008]
[Means for Solving the Problems]
In the present invention for solving the above technical problems, the means of the invention described in claim 1 is:
Having a gas introduced into the upper end, having a straight cylindrical stirring cylinder with the lower end opened in the liquid,
A rotating shaft driven at high speed, which is assembled coaxially in the stirring cylinder and has a lower end protruding from the stirring cylinder,
Having an impeller fixed to the lower end of this rotating shaft and having a number of stirring blade pieces on the upper surface of a flat disk-shaped main body disk and a number of dispersing blade pieces on the lower surface, protruding,
A gap is formed between the inner peripheral surface of the cylindrical wall portion of the main body and the outer peripheral edge of the main body disk of the impeller, and the impeller is rotatably housed and assembled to constitute a pump function unit. Having a casing body fixed in communication with the lower end of the stirring cylinder, opening a liquid inlet in the center of the lower surface, and opening a discharge port in the lateral direction,
It is in.
[0009]
According to the first aspect of the invention, when the rotating shaft is rotated at a high speed, the liquid in the stirring cylinder is sucked and discharged from the discharge port of the casing by the action of the stirring blade piece of the impeller in the casing. However, when the gas in the stirring cylinder reaches the stirring blade piece due to the suction and discharge of the liquid in the stirring cylinder, the state in which the decrease in the liquid in the stirring cylinder has stopped and the stirring and mixing of the gas and the liquid Is performed.
[0010]
Simultaneously with the stirring and mixing operation of the gas and the liquid by the stirring blade pieces, the liquid is sucked in from the liquid introduction port by the pumping action of the dispersing blade pieces of the impeller in the casing body, and is rapidly released from the discharge port.
[0011]
The mixture of the gas and the liquid mixed and stirred by the stirring blade piece merges with the liquid flow vigorously discharged by the pumping action of the dispersion blade piece, and is discharged into the liquid from the discharge port.
[0012]
During the discharging operation of the mixture, the liquid in the casing body at the lower end of the stirring cylinder and one side of the stirring blade is not entirely discharged, and a substantially constant amount of liquid is always located. Is continuously achieved without interruption.
[0013]
During the discharging operation of the mixture, the liquid in the casing on one side of the stirring blade is not completely discharged, and there is always a sufficient amount of liquid for mixing and stirring with the gas. By the blade pieces, a part of the liquid extruded in the radial direction is formed from the gap formed between the outer peripheral edge of the main body disc of the impeller and the inner peripheral surface of the cylindrical wall portion of the main body portion of the casing body. This is probably because the stirring blade pieces entered the upper side of the main body disk where the stirring blade pieces were located.
[0014]
Examples of the gas which is stirred and mixed with the liquid include air, oxygen, nitrogen, carbon dioxide, ozone, and the like. Examples of the liquid include drinking water, water in a pond or aquarium for breeding aquatic animals, homes and factories. Drainage and the like can be mentioned.
[0015]
The invention according to claim 2 is obtained by adding the configuration of the invention according to claim 1 in that the stirring blade piece and the radiation blade piece of the impeller are formed in a spiral blade shape.
[0016]
According to the second aspect of the present invention, since both the stirring blade piece and the radiation blade piece have a spiral blade shape, the high-speed rotation operation of the impeller can be stably and safely obtained. Can be rotated at a high speed without difficulty, so that the agitation and mixing of the gas and the liquid can be performed efficiently and sufficiently, and the liquid can be discharged sufficiently and vigorously.
[0017]
According to a third aspect of the present invention, in the configuration of the first or second aspect, a plurality of blade pieces for sending fluid in the stirring cylinder downward are provided at a lower end portion of the rotating shaft located at a lower end of the stirring cylinder. The addition of a stirring blade was added.
[0018]
According to the third aspect of the present invention, the gas and the liquid are stirred and mixed by the stirring blade piece and the stirring blade of the impeller, so that the generated bubbles become finer and the action of sending the stirring blade to the gas. The amount of the mixture released is increased by the amount.
[0019]
According to a fourth aspect of the present invention, in the configuration of the first, second, or third aspect of the present invention, a motor serving as a rotary drive source is fixed in an inverted posture on a base plate serving as a mounting base of the device, and penetrates the base plate. The motor shaft of the motor extending vertically is used as the rotation axis.
[0020]
According to the fourth aspect of the present invention, since the motor shaft of the motor as the rotary drive source is used as the rotary shaft, a mechanical coupling structure between the rotary shaft and the drive source is completely unnecessary, and the structure is accordingly reduced. In addition, handling becomes simple, and a stable high-speed rotation operation of the rotating shaft can be reliably obtained.
[0021]
According to a fifth aspect of the present invention, in the configuration of the first, second, third or fourth aspect, the casing body is fitted to the upper end of the short cylindrical tube wall and the lower end of the stirring tube is fitted to the opening edge. A first casing provided with a single tangentially projecting discharge port cylinder on a cylindrical wall of a main body section provided with an inner flange-shaped top wall formed with a stepped portion, and a lower surface opening portion of the first casing; And a first guide plate having a liquid inlet opening at the center.
[0022]
According to the fifth aspect of the present invention, the part for assembling and storing the impeller and the part for assembling with the agitating cylinder are constituted by the first casing which is a single component, and accordingly, the casing body is correspondingly provided. The structure is simple, and the discharge port is formed by a single discharge port cylinder protruding in the tangential direction, so that the liquid and the stirred mixture of gas and liquid can be strongly used in one direction by effectively utilizing the centrifugal force. discharge.
[0023]
According to a sixth aspect of the present invention, in the configuration of the first, second, third or fourth aspect, the casing body is provided with a mounting plate having a stepped central hole in the center of which the lower end of the stirring tube is fitted. One discharge port cylinder projecting tangentially to the cylinder wall of the main body section having an inner collar-shaped top wall section connected to the stepped central hole of the mounting plate at the upper end of the short cylindrical cylinder wall. And a first guide plate which is assembled by closing the lower surface opening of the second casing and has a liquid inlet in the center.
[0024]
According to the sixth aspect of the present invention, since a dedicated mounting plate is provided as a part to be assembled to the stirring cylinder side, the combination of the second casing and the first guide plate, which is the main body of the casing body, is also required. It can be easily attached to and detached from the device.
[0025]
According to a seventh aspect of the present invention, in the configuration of the first, second, third, or fourth aspect, the casing body is provided with a fitting step at which a lower end of the stirring cylinder is fitted at a central opening edge. A third casing in which a pair of cut-out pieces formed with a pair of cutouts in the axially symmetrical manner are provided on the lower surface thereof, and a discharge port piece extending substantially in a tangential direction is extended from both ends of the cut-off piece. And a second guide plate having a liquid inlet formed at the center of a disk attached to the lower side of the third casing.
[0026]
According to the seventh aspect of the present invention, since the two discharge ports are formed on the opposite sides, the liquid and the agitated mixture of the gas and the liquid are equally discharged to the left and right sides.
[0027]
According to an eighth aspect of the present invention, in addition to the constitution of the fourth aspect, a packing is provided between the base plate and the top wall of the tank containing the liquid to be treated.
[0028]
In the invention according to the eighth aspect, the gas in the tank, for example, the gas such as ozone released by the stirring and mixing apparatus of the present invention into the liquid to be treated for the treatment of the liquid to be treated is subjected to the present invention. From the top wall of the tank to which the stirring and mixing device is attached.
[0029]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 14 show the structure of a first embodiment of the present invention, in which a motor 1 as a drive source is mounted on an upper surface of a base plate 10 serving as a mounting base of the device of the present invention in an inverted posture. On the lower surface of 10, a combination of a stirring cylinder 20, an impeller 23, and a casing body K is assembled with the motor shaft 4 of the motor 1 as the rotation shaft 19 as it is.
[0030]
The motor 1 has a cooling fan 7 attached to the upper end of a motor shaft 4 protruding from the upper end surface of the case 2, and a cover 8 attached around the cooling fan 7 to protect the cooling fan 7. Immediately outside the upper and lower bearings 5, 5, an oil seal 6 for preventing outside air, particularly moisture, from entering the case 2 is provided, and the lower end surface of the case 2 supports the motor 1 upside down. Leg pieces 3 are provided so as to protrude downward.
[0031]
Drain plates 9 are provided at four positions on the motor shaft immediately below the lower oil seal 6, and liquid (mainly water) climbs up the motor shaft 4 with the high-speed rotation of the motor shaft 4. To prevent intrusion into the motor 1.
[0032]
Since the rotating shaft 19, that is, the motor shaft 4 in the apparatus of the present invention is only supported by the upper and lower two bearings 5 of the motor 1, the supporting of the rotating shaft 19 by the two bearings 5 is stably and firmly achieved. As shown in FIG. 23, the distance between the bearings 5 and 5 is much larger than the length of the rotor along the motor shaft 4, as shown in FIG. As a result, a stable support of the rotating shaft 19 is achieved, and the motor shaft 4, that is, the rotating shaft 19, has a larger thickness than a normal motor shaft. Not to exert enough toughness.
[0033]
In the base plate 10 (see FIG. 2), a shaft hole 14 through which the rotating shaft 19 passes is formed in the center of the disk, and four base pieces 11 are projected at equal central angles at the upper surface around the shaft hole 14. And four stud bolt holes 15 are formed at equal peripheral angles at the peripheral end portion of the disk, and air guide tube holes 17 are provided at locations where there is no hindrance to assembling the motor 1 and the stud bolts 22 to the base plate 10. Is formed, and a short cylindrical fitting tube piece 12 is suspended from the opening edge of the shaft hole 14 on the lower surface of the disk.
[0034]
The motor 1 is mounted on the base plate 10 with its leg 3 placed on the base 11, and the motor 1 mounted on the base plate 10 in this manner is set up on each base 11. An oil seal 13 is fixed to the base plate 10 at the leg piece 3 by screwing using the mounting hole 16, and an oil seal 13 that is in close contact with the rotating shaft 19 inserted into the shaft hole 14 is provided in the fitting cylinder piece 12. It is assembled.
[0035]
As shown in FIG. 3, the packing 18 attached to the lower surface of the base plate 10 is made of a material having a high sealing function, such as silicon rubber, having holes formed at locations facing the respective holes of the base plate 10. It is a sheet-shaped disk, which is in close contact with the upper surface of the tank top wall 61 of the tank containing the liquid to be treated, and in which the processing gas leaks from the opening formed in the tank top wall 61 in order to mount the apparatus of the present invention. To prevent
[0036]
The stirring cylinder 20 (see FIG. 4), which forms the gas supply path by inserting the rotation shaft 19 into the insertion position, has a stepped opening at the upper end fitted to the fitting cylinder piece 12 and assembled to the base plate 10. At the upper end of the cylindrical main body, there is provided an air guide tube 21 which bends and extends from the air guide hole 17 onto the base plate 10. This air guide tube 21 supplies a gas to be stirred and mixed with the liquid. Connected to the source.
[0037]
The casing body K, which is connected to the lower end of the stirring tube 20 in a communicating state, has an inner flange-shaped top wall connected to the upper end of a short cylindrical tube wall portion (refer to FIGS. 5 to 8). A main body portion 28 is formed, and a fitting step portion 32 into which the lower end of the stirring tube 20 is fitted is formed in an opening opening at the center of the top wall, and a mounting flange 31 is attached to the lower end of the main body portion 28. A discharge port tube 29 is provided on a part of the cylindrical wall portion of the main body portion 28 so as to extend in a tangential direction of the cylindrical wall portion, and four mounting bosses 30 are provided at the upper end portion of the main body portion 28 at equal central angles. The lower surface of the first casing 27 is formed by fitting and screwing the first casing 27 provided in a bulging shape to the mounting flange 31 of the first casing 27 with the assembling step 35. A ring-shaped plate with a liquid inlet 34 in the center And a guide plate 33.
[0038]
The first casing 27 is formed by screwing a lower end of a stud bolt 22 (see FIG. 11) having an upper end screwed into the stud bolt hole 15 of the base plate 10 and screwing the screw into a screw hole of the mounting boss 30. , The assembling to the stirring cylinder 20 is ensured.
[0039]
An impeller 23 (see FIGS. 12, 13, and 14) that is immovably attached to the tip (lower end) of the rotating shaft 19 that protrudes into the casing body K from the stirring cylinder 20 includes an outer peripheral edge and a first casing 27. The agitating blade piece 25 is provided on the upper surface of the flat disk-shaped main body disk 24 having a diameter forming a gap between the inner peripheral surface of the cylindrical wall portion and the dispersing blade piece 26 is provided on the lower surface. The stirring blade piece 25 and the radiation blade piece 26 have a spiral blade-like structure. However, the length of each stirring blade piece 25 is shorter than the length of each diffusion blade piece 26. The acting pumping force is weaker on the stirring blade piece 25 side.
[0040]
This is because it is necessary for the stirring blade piece 25 side of the impeller 23 to act on the mixture of the gas and the liquid while simultaneously stirring and mixing the gas and the liquid.
[0041]
That is, if the pumping action on the side of the stirring blade piece 25 of the impeller 23 is strengthened, the mixture of gas and liquid is released without sufficiently stirring and mixing the gas and liquid. Since the generation of small bubbles becomes impossible, and the gas dissolution into the liquid cannot be efficiently achieved, the pump action force is weakened, thereby increasing the stirring and mixing force.
[0042]
Since the first casing 27 has only one discharge port cylinder 29, the mixture of gas and liquid is discharged only in the set fixed direction, and therefore, the discharge direction is appropriately set. By doing so, it becomes possible to generate a circulating flow in the liquid in the tank or the water in the basin, whereby the gas can be uniformly and efficiently dissolved in the entire liquid.
[0043]
FIGS. 15 to 17 show a second embodiment of the apparatus of the present invention, in which a stirring blade 36 is added to the first embodiment.
[0044]
That is, a plurality of (three in this embodiment) spiral blade-shaped blade pieces 38 are arranged at equal intervals on the outer peripheral surface of the short cylindrical ring main body 37 at the position of the rotating shaft 19 immediately above the impeller 23. Is fixedly attached with a fixing screw 40.
[0045]
The stirring blade 36 functions to mix the gas and the liquid and to send the mixture of the gas and the liquid to the impeller 23. The location where the stirring blade 36 is located is only the position where the liquid is wavy. Therefore, it does not exert a large sending-out force and mainly exerts the stirring and mixing action of the gas and the liquid to generate sufficiently fine bubbles, but the blade pieces are used to generate the sufficiently fine bubbles. 38 sharp vane edges 39 work effectively.
[0046]
FIGS. 18 to 22 show a third embodiment of the present invention. The casing body K of the second embodiment is composed of a second casing 41, a mounting plate 47, and a first guide plate 33. It was done.
[0047]
The mounting plate 47 (see FIGS. 21 and 22) has a stepped central hole 48 into which the lower end of the stirring cylinder 20 is fitted and assembled from the upper side and the upper end of the second casing 41 is fitted from the lower side. Four bolt holes 49 for screwing the lower ends of the stud bolts 22 are formed at equal intervals in a flat ring disk-shaped main body provided at the center, and four bolts for screwing the second casing 41 are similarly formed. Assembling holes 50 are opened at equal intervals.
[0048]
The second casing 41 (see FIGS. 19 and 20) has a combined structure of the main body 42, the discharge port tube 45, and the mounting flange 46 except for the top wall 43, and the main body 28 of the first casing 27 and the discharge port. The mounting structure is exactly the same as the combination structure of the cylinder 29 and the mounting flange 31, and four mounting holes 44 for screwing to the mounting plate 47 are opened at equal intervals instead of the mounting boss 30 of the first casing 27. The top wall portion 43 that fits into the stepped central hole 48 of the 47 is formed.
[0049]
In the case of the third embodiment, the casing body K is not directly attached to the stirring tube 20 but is attached via the attachment plate 47, so that the combination of the casing body K and the impeller 23, which are the main functional parts of the apparatus, is provided. Parts can be easily attached and detached.
[0050]
FIGS. 23 to 28 show a fourth embodiment of the present invention, in which the configuration of the casing body K of the second embodiment is constituted by a combination of a third casing 51 and a second guide plate 58. It has become. The number of the stud bolts 22 is three.
[0051]
In the third casing 51 (see FIGS. 24 to 26), three mounting holes 55 for screwing the lower ends of the stud bolts 22 are opened at equal intervals, and the lower ends of the stirring tubes 20 are fitted into the central openings. On the lower surface of the flat disk-shaped top plate 52 provided with the fitting step portion 56, a cylindrical wall piece 53 having a form in which a cutout portion is provided at a position symmetrical with respect to the axis of the short cylinder is provided. At both ends in the circumferential direction of the two cylindrical wall pieces 53, discharge port pieces that form a substantially tangential discharge path in combination with the opposed discharge port pieces are respectively extended and provided. At the lower end surface, an assembling step portion 57 for assembling the second guide plate 58 is formed.
[0052]
The second guide plate 58 (see FIGS. 27 and 28) is a flat ring plate body having a liquid inlet 59 at the center and three holes for screwing the lower end of the stud bolt 22 at equal intervals. The upper surface is provided with an assembling step portion 60 that engages with the assembling step portion 57 of the third casing 51.
[0053]
In the case of the fourth embodiment, since the air guide tube 21 is not led out onto the base plate 10, the apparatus is installed under the condition that the air guide tube 21 is always positioned above the liquid level W.
[0054]
In the fourth embodiment, the agitated mixture of the gas and the liquid is released in both the left and right directions, so that the agitated mixture can be released over a wide range.
[0055]
【The invention's effect】
The present invention has the above-described configuration, and has the following effects.
According to the first aspect of the present invention, the mixture of the gas and the liquid mixed and stirred on the upper side of the impeller is discharged together with the liquid flow vigorously discharged from the lower side of the impeller. Can be released far enough, which allows the gas to dissolve into a wide range of liquids.
[0056]
Also, the supply of liquid to the upper side of the impeller is performed from the lower side of the impeller through a gap formed between the impeller and the casing body, or a laminar flow phenomenon caused by a pressure difference from other parts. Because of this, the gas and the liquid can always be located near the stirring blade piece of the impeller, and thereby the stirring and mixing of the gas and the liquid can be performed without interruption. , Can be performed continuously.
[0057]
According to the second aspect of the present invention, since the stirring blade piece and the radiation blade piece of the impeller are both spiral blades, the high-speed rotation operation of the impeller can be obtained stably and without difficulty. Stirring and mixing of a gas and a liquid and discharge of a vigorous liquid can be efficiently and strongly achieved.
[0058]
According to the third aspect of the present invention, since the stirring and mixing of the gas and the liquid is performed more powerfully and sufficiently, finer and more bubbles are generated.
[0059]
According to the invention described in claim 4, high-speed rotation of the rotating shaft can be obtained with a very stable and simple configuration.
[0060]
According to the fifth aspect of the present invention, the structure of the casing body is simplified, and the direction of discharge of the stirred mixture of gas and liquid is specified in one direction along the tangential direction. Can be released.
[0061]
According to the sixth aspect of the present invention, since the casing body has a portion dedicated to assembling with respect to the stirring cylinder, the attachment and detachment of the casing body is facilitated, and the maintenance of the apparatus is facilitated accordingly.
[0062]
According to the seventh aspect of the present invention, since the discharge direction of the stirring mixture of the gas and the liquid is set to both the left and right directions, the stirring mixture can be diffused to a wider range.
[0063]
According to the eighth aspect of the present invention, when treating the liquid in the closed tank, the apparatus can be tightly assembled to the tank, so that the gas used for the treatment, for example, ozone, leaks out of the tank. Can be prevented, so that the treatment of the liquid can be safely achieved.
[Brief description of the drawings]
FIG. 1 is an entire front view of a first embodiment of the present invention, which is taken along an irregular semi-longitudinal plane.
FIG. 2 is a plan view of a base plate used in the embodiment shown in FIG.
FIG. 3 is a plan view of a packing used in the embodiment shown in FIG. 1;
FIG. 4 is a partially longitudinal front view of the stirring cylinder used in the embodiment shown in FIG. 1;
FIG. 5 is a plan view of a first casing used in the embodiment shown in FIG.
FIG. 6 is a bottom view of the first casing used in the embodiment shown in FIG. 1;
FIG. 7 is a longitudinal sectional view of a first casing used in the embodiment shown in FIG.
FIG. 8 is a bottom plan view of the first casing used in the embodiment shown in FIG. 1;
FIG. 9 is a plan view of a first guide plate used in the embodiment shown in FIG. 1;
FIG. 10 is a longitudinal sectional view of a first guide plate used in the embodiment shown in FIG. 1;
FIG. 11 is a front view of a stud bolt used in the embodiment shown in FIG. 1;
FIG. 12 is a plan view of the impeller used in the embodiment shown in FIG.
FIG. 13 is a bottom view of the impeller used in the embodiment shown in FIG. 1;
FIG. 14 is an irregular vertical sectional view of the impeller used in the embodiment shown in FIG. 1;
FIG. 15 is a partially cutaway front view showing the second embodiment of the present invention.
FIG. 16 is a plan view of a stirring blade used in the embodiment shown in FIG.
FIG. 17 is a side view of the stirring blade used in the embodiment shown in FIG.
FIG. 18 is a partially cutaway front view showing the third embodiment of the present invention.
FIG. 19 is a plan view of a second casing used in the embodiment shown in FIG.
20 is a longitudinal sectional view of a second casing used in the embodiment shown in FIG.
FIG. 21 is a plan view of a mounting plate used in the embodiment shown in FIG. 18;
FIG. 22 is a longitudinal sectional view of a mounting plate used in the embodiment shown in FIG.
FIG. 23 is a front view of a fourth embodiment of the present invention, showing an irregular semi-longitudinal section.
FIG. 24 is a plan view of a third casing used in the embodiment shown in FIG. 23;
FIG. 25 is a bottom view of the third casing used in the embodiment shown in FIG. 23;
FIG. 26 is a longitudinal sectional view of a third casing used in the embodiment shown in FIG.
FIG. 27 is a plan view of a second guide plate used in the embodiment shown in FIG.
FIG. 28 is a longitudinal sectional view of a second guide plate used in the embodiment shown in FIG.
[Explanation of symbols]
1; Motor 2; Case 3; Leg 4; Motor shaft 5; Bearing 6; Oil seal 7; Cooling fan 8; Cover 9; Drain plate 10; Base plate 11; Base 12; Fitting tube 13; 14; shaft hole 15; stud bolt hole 16; mounting hole 17; air guide tube hole 18; packing 19; rotary shaft 20; stirring tube 21; air guide tube 22; stud bolt 23; impeller 24; Piece 26; radiation blade piece K; casing body 27; first casing 28; main body 29; discharge port cylinder 30; mounting boss 31; mounting flange 32; fitting step 33; first guide plate 34; Assembling step 36; stirring blade 37; ring main body 38; blade piece 39; blade edge 40; fixing screw 41; second casing 42; main body 43; top wall 44; Hole 45; discharge port tube 46; mounting flange 47; mounting plate 48; stepped central hole 49; bolt hole 50; mounting hole 51; third casing 52; top plate 53; Mounting hole 56; fitting step 57; assembling step 58; second guide plate 59; liquid inlet 60; assembling step 61; tank top wall W;

Claims (8)

A linear cylindrical stirring cylinder (20) having a gas introduced into the upper end thereof and having a lower end opened in the liquid; and a coaxial core mounted in the stirring cylinder (20), the lower end of which is the stirring cylinder (20). A rotating shaft (19) protruding from inside and driven at high speed, and a large number of agitating blade pieces ( 25), an impeller (23) protruding a plurality of diffusion blade pieces (26) on the lower surface, and an inner peripheral surface of a cylindrical wall portion of the main body portion; A gap is formed between the outer peripheral edge of the plate (24) and the pump function unit is rotatably housed and assembled to form a pump function unit. A stirring and mixing device for a liquid and a gas, comprising a casing body (K) having a liquid introduction port and a laterally opened discharge port. 2. The stirring and mixing device for liquid and gas according to claim 1, wherein the stirring blade piece (25) and the dispersing blade piece (26) of the impeller (23) are spiral blades. At the lower end of the rotating shaft (19) located at the lower end of the stirring cylinder (20), a stirring blade (36) having a plurality of blade pieces (38) for sending fluid in the stirring cylinder (20) downward is attached. 3. A stirring and mixing device for a liquid and a gas according to claim 1 or 2. A motor (1), which is a rotary drive source, is fixed in an inverted posture on a base plate (10) serving as a mounting base of the device, and the motor (1) extending vertically through the base plate (10). 4. The apparatus according to claim 1, wherein the motor shaft is a rotary shaft. The casing body (K) is formed by connecting an inner flange-shaped top wall having a fitting step (32) formed at the upper end of a short cylindrical tube wall with an opening edge to which the lower end of the stirring tube (20) fits. A first casing (27) provided with one tangentially projecting discharge port cylinder (29) on the cylinder wall of the main body (28) provided; and a lower surface opening of the first casing (27) is closed. 5. The stirring and mixing device for liquid and gas according to claim 1, wherein the device comprises a first guide plate (33) having a liquid inlet (34) in the center. The casing body (K) is provided with a mounting plate (47) having a stepped central hole (48) in the center of which the lower end of the stirring tube (20) fits, and the mounting plate on the upper end of a short cylindrical tube wall. One discharge port cylinder tangentially protruding from the cylinder wall of the main body (42) having the inner flange-shaped top wall (43) connected thereto and fitted into the stepped central hole (48) of (47). A second casing (41) provided with (45), a first guide plate (33) assembled with the lower opening of the second casing (41) closed and a liquid inlet (34) opened in the center; 5. The stirring and mixing device for a liquid and a gas according to claim 1, wherein the device comprises: The casing body (K) is provided with a pair of notches axially symmetrically on the lower surface of a top plate (52) provided with a fitting step (56) in which the lower end of the stirring tube (20) fits at the center opening edge. A third casing (51) in which a pair of formed tubular wall pieces (53) is suspended, and a discharge port piece (54) extending substantially in a tangential direction is extended from both ends of the tubular wall piece (53); And a second guide plate (58) having a liquid inlet (59) in the center of a disk mounted on the lower side of the third casing (51). 4. An apparatus for stirring and mixing a liquid and a gas according to 4. 5. The apparatus according to claim 4, wherein a packing (18) is provided between the base plate (10) and the top wall of the tank containing the liquid to be treated.

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