JP5727273B2 - Mixing and stirring device - Google Patents

Description

  The present invention relates to a mixing and stirring device, and more specifically, mixing and stirring a plurality of types of fluids (for example, gas and liquid, liquid and liquid, or particles and powder as a solid and liquid). The present invention relates to a mixing and stirring device that can be made into a mixture.

  Conventionally, there exists what was disclosed by patent document 1 as one form of a mixing and stirring apparatus. That is, Patent Literature 1 discloses a mixing and stirring device in which a mixing rotating body attached to a rotating shaft connected to a rotation driving source is disposed in a liquid in a stirring tank. The mixing rotating body is formed by stacking two upper and lower disks as a set, forming an inflow port in the center of the lower disk, and arranging a large number of cylindrical chambers opening forward on the front surfaces facing each other. The upper disk chamber and the lower disk chamber communicate with other chambers facing each other, and intersect the side walls forming the other chamber at the center of one chamber. They are arranged at different positions so that the connection sites are located.

  In this way, by rotating the mixing rotator in the agitation tank via the rotationally driven rotating shaft, a plurality of types of liquids stored in the agitation tank are formed at the center of the lower disk. While flowing from the inlet, the small chambers formed so as to face the two upper and lower disks are caused to flow in the radiation direction of the mixing rotating body while meandering by centrifugal force so as to be mixed and stirred.

Japanese Patent No. 3930123

  However, a mixing and stirring device capable of mixing and stirring a plurality of types of fluids (for example, gas and liquid, liquid and liquid, or particles and powder as a solid and liquid) more efficiently to form a mixture. Development of was desired.

  Then, an object of this invention is to provide the mixing stirring apparatus which can be mixed and stirred more efficiently and can be made into a mixture.

The mixing and stirring device according to the invention of claim 1 is connected to a mixing and stirring case that forms a mixing and stirring chamber, and is connected to a feeding path for feeding a fluid to be mixed and stirred, and the mixed and stirred mixture is mixed. Connect the delivery path to send out, lay the rotating shaft linked to the rotation drive source in the mixing stirring case, and attach the rotating side mixing stirring body having a number of through holes in the axial direction to the rotating shaft, A pair of fixed-side mixing agitators are fixed in a face-to-face state with a rotating-side mixing agitator interposed in the mixing agitating case, and the space between these mixing agitators is viewed from a direction orthogonal to the axial direction of the rotating shaft. In this case, a mixing agitation channel that extends while meandering in the radial direction from the central part toward the peripheral part is formed, and the mixing agitation channel is formed by opening the central part of one fixed-side mixing agitation body. Communicating mouth and mixing on the other fixed side Characterized in that communicates electrical outlet formed between the periphery of 拌体 rotation-side mixing agitator.

  In such a mixing and stirring apparatus, first, a plurality of types of fluids to be mixed and stirred are fed into a mixing and stirring chamber of a mixing and stirring case through a feeding path. Thereafter, the fluid is introduced from the inlet formed by opening the central portion of one fixed-side mixing and stirring body by centrifugal force generated by rotating the rotation-side mixing and stirring body via the rotating shaft. Then, the fluid introduced from the introduction port meanders in the radial direction from the central portion toward the peripheral portion between the fixed-side mixing agitator disposed opposite to the rotating-side mixing agitator rotating between them. The mixture is mixed and stirred while flowing in the mixing and stirring channel that extends while becoming a mixture. Subsequently, the mixture is led out from an outlet port formed between the other fixed side mixing agitator and the peripheral portion of the rotation side mixing agitator. Further, the mixture is appropriately sent out from the mixing and stirring case through the delivery path.

  Here, the mixing agitating flow path is formed between one fixed side mixing agitator and the rotating side mixing agitator having a large number of through holes in the axial direction, and the rotating side mixing agitator and the other fixed side. It is formed between the mixed stirring bodies. That is, a pair of mixing agitating channels extends in parallel in the radiation direction, and the pair of mixing agitating channels communicate with each other through a large number of through holes of the rotating side agitating body.

  Therefore, a plurality of types of fluid are subjected to a shearing action when flowing while flowing in a pair of mixing and stirring channels communicating with each other through a large number of through holes in the radial direction, and rotation of the rotating side mixing and stirring body The shearing action is received in two stages in the pair of mixing stirring channels in the direction. As a result, a plurality of types of fluids flow and are steadily mixed and agitated while receiving a three-dimensional shearing action that is a resultant force of a shearing action in the radial direction and a two-stage shearing action in the rotational direction.

A mixing and stirring apparatus according to a second aspect of the present invention is the mixing and stirring apparatus according to the first aspect , wherein the rotating-side mixed stirring body and the fixed-side mixed stirring body arranged in a face-to-face state are mixed into a single mixing / stirring unit. In the mixing stirring case, a plurality of mixing stirring units are arranged along the rotation axis, and the mixing stirring units are fluidly connected in series.

  In such a mixing and stirring device, a plurality of types of fluids can be mixed and stirred steadily and efficiently by flowing in a single pass through a plurality of mixing and stirring units fluidly connected in series.

  The present invention has the following effects. That is, the present invention can provide a mixing and stirring device that can be mixed and stirred more efficiently to form a mixture. And it can make it applicable to a wide use as a mixing stirring apparatus. Here, examples of applications to which the mixing and stirring apparatus according to the present invention can be applied include deoxygenation treatment in treated water by nitrogen substitution (reduction treatment of dissolved oxygen amount), increase in dissolved oxygen amount in agricultural water, and the like. There are treatment, dissolution treatment of water-soluble fertilizer, purification treatment of sewage and waste liquid, anti-rotation treatment of organic impurities, breeding of aquatic animals, hydroponics. For example, when mixing and stirring a gas and a liquid, the gas is made into a bubble that has been made ultra-fine and uniform to almost the micro level or sub-micro level, and the ultra-fine bubble generating device having a wide range of applicable applications. Can also be used.

The partial cross section front explanatory drawing of the mixing and stirring apparatus as 1st Embodiment. Explanatory drawing of the left side of the mixing and stirring apparatus as 1st Embodiment. Explanatory drawing of the right side of the mixing and stirring apparatus as 1st Embodiment. Explanatory drawing of the left side of a rotation side mixing stirring body. Explanatory drawing of the right side of a fixed side mixing stirring body. Side surface explanatory drawing which shows the basic form of both mixing stirring bodies. Explanatory drawing of the mixing stirring flow path of 1st Embodiment. The partial cross section front explanatory drawing of the mixing and stirring apparatus as 2nd Embodiment. Explanatory drawing of the right side of the other fixed side mixing stirring body. Explanatory drawing of the mixing stirring flow path of 2nd Embodiment. The partial cross section front explanatory drawing of the mixing and stirring apparatus as 3rd Embodiment. Explanatory drawing of the mixing stirring flow path of 3rd Embodiment.

  The form for implementing this invention is as follows.

[First Embodiment]
A shown in FIGS. 1 to 3 is a mixing and stirring apparatus as the first embodiment. As shown in FIGS. 1 to 3, the mixing and stirring device A includes a device main body 10 that mixes and stirs a plurality of types of fluids, and a motor 100 that is an electric motor unit as a drive source that supplies driving force to the device main body 10. A transmission mechanism 200 that transmits the driving force from the motor 100 to the apparatus main body 10 is provided.

  The apparatus main body 10 is configured by providing a mixing and stirring function unit 30 in a mixing and stirring case 20, and a plurality of types of fluids to be mixed and stirred are fed into the mixing and stirring case 20 in a pressurized state (pressure feeding). The feed pipe 40 which forms an entrance path is connected, and the delivery pipe 50 which forms the delivery path which sends out the mixed and stirred mixture is connected. Examples of combinations of a plurality of types of fluids include gas and liquid, liquid and liquid, or particles and powder as a solid and liquid, and these are fed into the mixing and stirring case 20 through the feed pipe 40. And it can be made into a mixture by mixing and stirring by the mixing stirring function part 30.

  The mixed stirring case 20 is attached to a left end surface portion of a cylindrical case body 21 having an axis line in the left-right direction in a closed state while a substantially rectangular plate-like left closing wall body 22 is attached in a closed state via a mounting bolt 24. On the right end surface portion of the case main body 21, a right quadrangle plate-like right closing wall body 23 is attached in a closed state via a mounting bolt 25, and a mixing stirring chamber 26 is formed inside. A left bearing body 27 is provided at the center of the left closing wall body 22, while a right bearing body 28 is provided at the center of the right closing wall body 23, and the rotary shaft 29 is detachable between the bearing bodies 27, 28. It is laid horizontally. One end of an inlet pipe 40 is connected to the left closed wall body 22 so that the inlet pipe 40 communicates with the mixing and stirring chamber 26. One end of a delivery pipe 50 is connected to the right closing wall body 23 so that the delivery pipe 50 communicates with the mixing and stirring chamber 26. Reference numerals 14 and 15 are support legs provided at the lower left and right sides of the case body 21, 16 is a left rotation shaft insertion hole formed at the center of the left blocking wall 22, and 17 is formed at the center of the right blocking wall 23. The right rotation shaft insertion holes 18 and 19 are mechanical seal portions interposed between the left and right bearing bodies 27 and 28 and the rotation shaft 29 in the mixing and stirring chamber 26.

  The mixing / stirring function unit 30 attaches a rotating-side mixing / stirring body 60 to a rotating shaft 29 horizontally mounted in the mixing / stirring case 20 so as to be integrally rotatable. One mixing and stirring unit 80 is formed in a state of facing the mixing and stirring body 60.

  As shown in FIG. 4, the rotation-side mixing and stirring body 60 has a central portion 62 and a constant width on one side surface of the rotation-side main body 61 that is smaller than the inner diameter of the case main body 21 and has a constant thickness. Except for the outer peripheral portion 63, hexagonal flow path forming concave portions 64 in a side view in the radial direction and the circumferential direction are formed in an orderly and dense manner to form a honeycomb shape.

  Here, as shown in FIG. 1, a rotation shaft insertion hole 65 is formed in the central portion 62 of the rotation-side main body 61, and the peripheral surface of the rotation shaft insertion hole 65 is formed on the peripheral surface of the rotation shaft 29. A spline groove 65a (see FIG. 4) that engages with the spline protrusion 29a is formed. Then, by engaging the spline groove 65a of the rotation-side mixing and stirring body 60 with the spline protrusion 29a of the rotation shaft 29 and attaching the rotation-side mixing and stirring body 60 to the rotation shaft 29 in the axial direction thereof. It is slidable (detachable) and can rotate integrally around the axis.

  As shown in FIG. 5, the fixed-side mixing agitator 70 is substantially the same shape as the inner diameter of the case main body 21 described above and is formed to have the same thickness as the rotation-side main body 61 of the rotation-side mixing agitator 60. The inlet port 76 is opened through the central portion 72 in the up-down direction, and the hexagonal flow in a side view in the radial direction and the circumferential direction is provided on one side surface of the fixed-side main body 71 except for the outer peripheral portion 73 having a constant width. The path forming recesses 74 are formed in an orderly and dense manner to form a honeycomb shape. The shape of the flow path forming recesses 64 and 74 is not limited to a hexagonal shape in a side view, and may be formed in a semispherical concave shape, for example.

  And the outlet 66 which opens over the perimeter of an outer periphery is formed between the outer peripheral part 63 of the rotation side mixing stirring body 60, and the outer peripheral part 73 of the stationary side mixing stirring body 70. As shown in FIG.

  As shown in FIG. 6, the flow path forming recesses 64 and 74 formed in both the mixing agitators 60 and 70 face each other in a state of being displaced as a basic form. That is, the central portion 67 of the three adjacent flow path forming concave portions 64 is positioned at the central portion of the one flow path forming concave portion 74 facing, and the central portion 77 of the three adjacent flow path forming concave portions 74. Is positioned at the center of one channel-forming recess 64 facing each other, and a plurality of types of fluids to be agitated are formed between the channel-forming recesses 64, 74. One flow path forming recess 74 facing from the two flow path forming recesses 64 (74) is divided (dispersed) into the two flow path forming recesses 74 (64) facing from the recess 64 (74). A mixing and stirring channel 79 (see FIG. 7) that flows in the radial direction while meandering is formed so as to join (collect) at (64).

  In both the mixing agitators 60 and 70 having such a basic form, as shown in FIG. 7, the rotating side mixing agitating body 60 is in contact with the rotating shaft 29 in a state where a fixed gap t is maintained between the rotating side mixing agitating body 60 and It is integrally rotated in the rotation direction X (counterclockwise in the side view of FIG. 4).

  Therefore, a plurality of types of fluids to be stirred are separated (dispersed) by meandering in the mixing stirring channel 79 in the vertical direction from the inlet 76 on the center side to the outlet 66 on the outer peripheral edge by centrifugal force. By repeating the merging (aggregation), it flows in the radiation direction and flows out from the outlet 66 formed at the peripheral edge.

  Here, the plurality of types of fluids flowing in the meandering direction are subjected to a shearing action in the meandering direction and also in the rotational direction X of the rotating side mixing and stirring body 60. As a result, the fluid is mixed and agitated by flowing while receiving a three-dimensional shearing action in the resultant direction of the meandering direction and the rotation direction X, thereby forming a mixture. When a liquid and a gas are mixed and stirred as a fluid, the ultrafine and uniform gas in the liquid is steadily realized.

  Further, since the rotating side mixing and stirring body 60 and the fixed side mixing and stirring body 70 are relatively displaced about the axis, the area where the flow path forming concave portion 64 and the flow path forming concave portion 74 are opposed to each other and communicates periodically. To change. That is, the flow is divided (dispersed) into two flow path forming concave portions 74 (64) facing from one flow path forming concave portion 64 (74), and also facing from two flow path forming concave portions 64 (74). The communication area at the time of joining (collecting) to one flow path forming recess 74 (64) changes periodically. Therefore, a plurality of types of fluids that are to be stirred repeatedly form pulsating flows. The pulsating flow is a flow in which the flow path cross-sectional area changes periodically. When the pulsating flow is repeatedly formed, a local high pressure portion and a local low pressure portion are generated in the fluid. In such a fluid, when a low-pressure part (for example, a negative pressure part such as a vacuum part) occurs locally, a so-called foaming phenomenon occurs, gas is generated in the liquid, or minute bubbles expand (explode). Or a phenomenon called so-called cavitation occurs in which the generated gas (bubbles) collapses (disappears). By the force generated when such a cavitation phenomenon occurs, gas is refined and fluid mixing is promoted.

  In the mixing and stirring apparatus A, the outlet 66 of the second mixing and stirring unit 80 communicates with the inlet 76 of the first mixing and stirring unit 80, and the third mixing is connected to the inlet 76 of the second mixing and stirring unit 80. The outlet 66 of the stirring unit 80 communicates, and the feed pipe 40 communicates with the inlet 76 of the third mixing and stirring unit 80. Therefore, a plurality of kinds of fluids can be flowed in one pass to the three mixing and stirring units 80 fluidly connected in series, and can be mixed and stirred steadily and efficiently.

  Next, the configuration of the mixing and stirring unit 80 will be specifically described. That is, as shown in FIGS. 1 and 7, a plurality of mixing and stirring units 80 are provided in the mixing and stirring case 20 (in this embodiment, three from the first mixing stirring unit 80 to the third mixing stirring unit 80 from the right side to the left side). Are arranged on the rotating shaft 29 at a predetermined interval in the axial direction, and the mixing and stirring units 80 are fluidly connected in series. Each mixing and stirring unit 80 positions and arranges the rotating side mixing and stirring body 60 and the fixed side mixing and stirring body 70 in the mixing and stirring case 20 via the rotating shaft side spacer group 81 and the case side spacer group 82. It consists of that.

  That is, the rotating shaft side spacer group 81 is composed of rotating shaft side first to fourth spacers 81 a to 81 d, and each spacer 81 a to 81 d is formed in a cylindrical shape whose inner diameter is slightly larger than the outer diameter of the rotating shaft 29. And the space | interval of the rotation side mixing stirring body 60 of each mixing stirring unit 80 is set with the cylinder length of each spacer 81a-81d.

  Specifically, the rotation shaft side first spacer 81 a is arranged between the right mechanical seal portion 19 and the rotation side mixing and stirring body 60 of the first mixing and stirring unit 80. Between the rotating side mixing and stirring body 60 of the first mixing and stirring unit 80 and the rotating side mixing and stirring body 60 of the second mixing and stirring unit 80, the rotating shaft side second spacer 81b is fixed on the fixed side of the first mixing and stirring unit 80. It is inserted through the introduction port 76 of the stirring body 70. Between the rotation-side mixing and stirring body 60 of the second mixing and stirring unit 80 and the rotation-side mixing and stirring body 60 of the third mixing and stirring unit 80, the rotating-shaft side third spacer 82c is mixed on the fixed side of the second mixing and stirring unit 80. It is inserted through the introduction port 76 of the stirring body 70. Between the rotation-side mixing and stirring body 60 of the third mixing and stirring unit 80 and the left mechanical seal portion 18, the rotary shaft-side fourth spacer 81 d is inserted into the introduction port 76 of the fixed-side mixing and stirring body 70 of the third mixing and stirring unit 80. It is placed through.

  It comprises in this way, and each rotation side mixing stirring body 60 of the 1st-3rd mixing stirring unit 80 is fixed by being clamped by the pressing state via the rotating shaft side 1st-4th spacer 81a-81d. To be positioned.

  The case-side spacer group 82 includes case-side first to fourth spacers 82a to 82d, and each of the spacers 82a to 82d is formed in a cylindrical shape whose inner diameter and outer diameter of the mixed stirring case 20 are substantially the same. The intervals of the fixed-side mixing and stirring bodies 70 of the mixing and stirring units 80 are set by the cylinder lengths of the spacers 82a to 82d.

  Specifically, a case-side first spacer 82 a is disposed between the right-hand closing wall body 23 and the fixed-side mixing and stirring body 70 of the first mixing and stirring unit 80. A case-side second spacer 82 b is disposed between the fixed-side mixing and stirring body 70 of the first mixing and stirring unit 80 and the fixed-side mixing and stirring body 70 of the second mixing and stirring unit 80. A case-side third spacer 82 c is arranged between the fixed-side mixing and stirring body 70 of the second mixing and stirring unit 80 and the fixed-side mixing and stirring body 70 of the third mixing and stirring unit 80. A case-side fourth spacer 82 d is disposed between the fixed-side mixing agitator 70 and the left blocking wall body 22 of the third mixing agitating unit 80.

  Constituting in this way, each fixed-side mixing and stirring body 70 of the first to third mixing and stirring units 80 is fixed by being held in a pressed state via the case-side first to fourth spacers 82a to 82d. To be positioned.

  Therefore, a constant gap t can be secured between the rotating side mixing and stirring body 60 and the fixed side mixing and stirring body 70 via the rotating shaft side spacer group 81 and the case side spacer group 82. That is, the constant gap t can be easily adjusted as appropriate by changing the tube lengths of the rotating shaft side spacer group 81 and / or the case side spacer group 82.

When assembling the three mixing and agitating units 80 configured as described above, the right closing wall body 23 is attached to the right end surface portion of the case main body 21 via the mounting bolts 25, and the right bearing body is attached to the right closing wall body 23. The right end portion of the rotary shaft 29 is pivoted through 28. In the same state, the rotary shaft side first spacer 81a → the rotation side mixing stirrer 60 of the first mixing stirrer unit 80 → the case side first spacer 82a → the fixed side stirrer stirring unit 70 of the first mixing stirrer unit 80 in sequence. Deploy. Next, the rotation-side second spacer 81 b → the rotation-side mixing and stirring body 60 of the second mixing and stirring unit 80 → the case-side second spacer 82 b → the fixed-side mixing and stirring body 70 of the second mixing and stirring unit 80 are arranged. Next, the rotation-side third spacer 81 c → the rotation-side mixing and stirring body 60 of the third mixing and stirring unit 80 → the case-side third spacer 82 c → the fixed-side mixing and stirring body 70 of the third mixing and stirring unit 80 is arranged. Finally, the rotation-axis-side fourth spacer 81d → the case-side fourth spacer 82d → the left mechanical seal portion 18 → the left blocking wall body 22 is arranged, and the left-side end surface portion of the case body 21 is attached to the left side via the mounting bolt 24. The closing wall body 22 is attached, and the left end portion of the rotation shaft 29 is pivoted via the left bearing body 27.
Further, when disassembling the three mixing and stirring units 80 configured as described above, the above procedure can be reversed.

  In this way, the mixing and stirring apparatus A as the first embodiment can easily and quickly perform assembly and disassembly work, and therefore can efficiently perform maintenance work and adjustment of the constant gap t.

  As shown in FIGS. 1 to 3, the motor 100 is mounted on the mixing and stirring case 20 via a mounting table 101. As shown in FIGS. 1 and 3, the transmission mechanism 200 is configured by winding a transmission belt 203 between an output pulley 201 and an input pulley 202 between a drive shaft 102 protruding from the motor 100 and a rotary shaft 29. Forming.

  In the mixing and stirring apparatus A configured as described above, first, a plurality of types of fluids to be mixed and stirred are fed into the mixing and stirring chamber 26 of the mixing and stirring case 20 through the feeding pipe 40. Thereafter, the fluid is introduced from the inlet 76 formed by opening the central portion of the fixed-side mixing and stirring body 70 by centrifugal force generated by rotating the rotation-side mixing and stirring body 60 via the rotating shaft 29. The fluid introduced from the introduction port 76 is mixed and stirred while flowing in the mixing stirring channel 79 extending between the mixing stirring bodies 60 and 70 while meandering in the radial direction from the central portion toward the peripheral portion. To become a mixture. Subsequently, the mixture is led out from a lead-out port 66 formed between the peripheral edges of both the mixing agitators 60 and 70. Further, the mixture is appropriately delivered from the mixing and stirring case 20 through the delivery pipe 50.

  The plural kinds of fluids are subjected to a shearing action when flowing in the mixing and stirring flow path 79 while meandering in the radiation direction, and also subjected to a shearing action in the rotation direction X of the rotating side mixing and stirring body 60. As a result, the plurality of types of fluids flow while receiving the resultant force of the shearing action in the radial direction and the shearing action in the rotational direction, and are mixed and agitated firmly.

[Second Embodiment]
FIG. 8 is a cross-sectional front view of the mixing and stirring apparatus A as the second embodiment. The mixing and stirring apparatus A as the second embodiment has the same basic structure as the mixing and stirring apparatus A as the first embodiment. However, there is a difference in the structure of the mixing and stirring unit 80.

  That is, the mixing and stirring unit 80 of the mixing and stirring apparatus A as the second embodiment has the rotating side mixing and stirring body 90 having a large number of through holes 98 in the axial direction attached to the rotating shaft 29. A pair of fixed-side mixing and stirring bodies 91 and 92 are fixed in a face-to-face state with a rotating-side mixing and stirring body 90 interposed in the mixing and stirring case 20. Between these mixing stirring bodies 91 and 92, a mixing stirring flow path 93 (see FIG. 10) is formed that extends while meandering in the radial direction from the central portion toward the peripheral portion. The mixing stirring channel 93 communicates with an introduction port 94 formed at the center of one fixed-side mixing stirring body 91 and a first outlet 95 formed between the peripheral portions of the rotation-side mixing stirring body 90. And a second outlet 96 formed between the peripheral edges of the other fixed-side mixing and stirring body 92.

  The rotation-side mixing and stirring body 90 has a basic shape similar to that of the rotation-side mixing and stirring body 60, and has a through hole 98 instead of the flow path forming recess 64. The side surface of the through hole 98 has the same shape as the flow path forming recess 64. Here, the first outlet 95 is formed between the outer peripheral end surface of the rotation-side mixing and stirring body 90 and the inner peripheral surface of the case main body 21.

  One fixed-side mixing and stirring body 91 can be formed in the same manner as the fixed-side mixing and stirring body 70. As shown in FIGS. 9 and 10, the other fixed-side mixing stirrer 92 has a basic shape similar to that of the rotating-side mixing stirrer 60 and a plurality of (four in the present embodiment) at the periphery. The fixing protrusions 97 are formed in a protruding shape with a certain interval in the circumferential direction. The leading edge of each fixing protrusion 97 is formed in an arc shape along the inner surface of the case body 21 and is in contact with the inner surface of the case body 21. Here, four second outlets 96 are formed by being surrounded by adjacent fixing protrusions 97 and 97 and the case body 21, and each of the second outlets 96 communicates with the first outlet 95. In addition, it communicates with the inlet 94 of the mixing and stirring unit 80 adjacent to the downstream side. That is, a plurality of types of fluid can be flowed in one pass to the three mixing and stirring units 80 fluidly connected in series. In addition, the other fixed-side mixing and stirring body 92 is fixed by pressing the fixing protrusion 97 between the case-side spacer group 82 in a pressing manner. Reference numeral 99 denotes a rotation shaft insertion hole formed in the central portion of the other fixed side mixing and stirring body 92.

  In the mixing and stirring apparatus A as the second embodiment, as shown in FIG. 8, case-side fifth to seventh spacers 82e to 82g are added to the case-side spacer group 82 of the mixing and stirring apparatus A as the first embodiment. doing. Here, each case side 5th-7th spacer 82e-82g is maintaining the space | interval of a pair of fixed side mixing stirring body 91,92. With this configuration, a constant gap t is ensured between the rotating side mixing and stirring body 60 and the fixed side mixing and stirring body 70 via the rotating shaft side spacer group 81 and the case side spacer group 82. The constant gap t can be easily adjusted as appropriate by changing the tube lengths of the rotating shaft side spacer group 81 and / or the case side spacer group 82.

  Further, the mixing and stirring device A as the second embodiment can also assemble and disassemble the mixing and stirring unit 80 similarly to the mixing and stirring device A as the first embodiment, and can efficiently perform maintenance work and the like. .

  In the mixing and stirring apparatus A configured as described above, first, a plurality of types of fluids to be mixed and stirred are fed through the feeding pipe 40 into the mixing and stirring chamber 26 of the mixing and stirring case. Thereafter, the fluid is introduced from the inlet 94 formed by opening the central portion of one fixed-side mixing and stirring body 91 by centrifugal force generated by rotating the rotation-side mixing and stirring body 90 via the rotating shaft 29. . The fluid introduced from the introduction port 94 is directed from the central portion toward the peripheral portion between the other fixed side mixing and stirring body 92 disposed opposite to the rotating side mixing and stirring body 90 that is interposed therebetween and rotates. The mixture is mixed and stirred while flowing in the mixing and stirring flow path 93 that extends while meandering in the radiation direction to form a mixture. Subsequently, the mixture is led out from the first outlet 95 formed between the other fixed side mixing agitator 92 and the peripheral portion of the rotation side mixing agitator 90. Further, the mixture is appropriately delivered from the mixing and stirring case 20 through the delivery pipe 50.

  Here, the mixing and stirring flow path 93 is formed between one fixed-side mixing and stirring body 91 and the rotating-side mixing and stirring body 90 having a large number of through-holes 98 in the axial direction. And the other fixed-side mixing stirring body 92. That is, the pair of mixing and stirring channels 93 extends in parallel in the radial direction, and the pair of mixing and stirring channels 93 and 93 communicate with each other through a large number of through holes 98 included in the rotating-side mixing and stirring body 90. doing.

  Therefore, a plurality of kinds of fluids are subjected to a shearing action when flowing in a pair of mixing and stirring flow paths 93 and 93 communicating with each other through a large number of through-holes 98 in the radial direction, and are mixed on the rotating side. A shearing action is applied in two stages in the pair of mixing stirring channels 93, 93 in the rotation direction of the stirring body 90. As a result, a plurality of types of fluids flow and are steadily mixed and agitated while receiving a three-dimensional shearing action that is a resultant force of a shearing action in the radial direction and a two-stage shearing action in the rotational direction.

[Third Embodiment]
FIG. 11 is a cross-sectional front view of the mixing and stirring apparatus A as the third embodiment, and the mixing and stirring apparatus A as the third embodiment has the same basic structure as the mixing and stirring apparatus A as the first embodiment. However, there is a difference in the structure of the mixing and stirring unit 80.

  That is, the mixing and stirring unit 80 of the mixing and stirring apparatus A as the second embodiment is arranged so that the mixing and stirring unit 80 of the first embodiment faces line-symmetrically (plane symmetry with respect to a plane orthogonal to the rotation axis 29). It is formed with. That is, with respect to one mixing and stirring unit 80 of the first embodiment, the other mixing and stirring unit 80 of the first embodiment is inverted 180 degrees and arranged adjacent to each other back to back, so that the second embodiment The mixing stirring unit 80 of the mixing stirring apparatus A is formed, and three such mixing stirring units 80 are arranged in the mixing stirring case 20.

  Specifically, as shown in FIG. 12, the mixing and stirring unit 80 arranges the first fixed-side mixing and stirring body 70 and the rotating-side mixing and stirring body 60 in a face-to-face state with a constant gap t therebetween. A first mixing agitating flow path 79 is formed between the second rotating side mixing agitating body 60 and the fixed mixing agitating body 70 in a face-to-face state with a constant gap t therebetween, so that the first Two mixing stirring channels 79 are formed.

  The base end portion of the first mixing and stirring channel 79 is communicated with an introduction port 76 formed in the central portion of the first fixed-side mixing and stirring body 70, and the tip portion of the first mixing and stirring channel 79 is The outer periphery 63 of the first rotation-side mixing and stirring body 60 and the outer periphery 73 of the stationary-side mixing and stirring body 70 are communicated with an outlet port 66 formed over the entire outer periphery. The base end portion of the second mixing and stirring channel 79 is formed between the outer peripheral portion 63 of the second rotating side mixing and stirring member 60 and the outer peripheral portion 73 of the fixed side mixing and stirring member 70 over the entire outer periphery. In addition, the tip of the second mixing and stirring channel 79 is communicated with a second outlet 78 formed at the center of the second fixed-side mixing and stirring body 70.

  The lead-out port 66 and the second introduction port 68 communicate with each other via the return communication path 110. The return communication passage 110 is a case side fifth member which is a part of the peripheral surface of the first and second fixed side mixing agitators 70, 70 and the case side spacer group 82 interposed so as to maintain the space therebetween. The inner peripheral surface of any one of the seventh spacers 82e to 82g and the peripheral end surfaces of the first and second rotating-side mixed agitators 60, 60 are formed. The first and second rotating-side mixed agitators 60, 60 are positioned and arranged in a fixed state by rotating shaft-side first to fourth spacers 81a to 81d. The first and second rotating-side mixed agitators 60, 60 can be integrally formed.

  As a result, the pumped fluid in each mixing and stirring unit 80 is introduced into the introduction port 76 → the first mixing and stirring channel 79 → the outlet port 66 → the return communication path 110 → the second introduction port 68 → the second mixing and stirring. It flows through the flow path 79 → the second outlet 78. At this time, the fluid is steadily mixed and stirred while receiving the above-described three-dimensional shearing action in the first and second mixing and stirring flow paths 79 and 79.

  Further, the mixing and stirring apparatus A as the third embodiment also has a constant gap between the rotating side mixing and stirring body 60 and the fixed side mixing and stirring body 70 via the rotating shaft side spacer group 81 and the case side spacer group 82. t can be secured. That is, the constant gap t can be easily adjusted as appropriate by changing the tube lengths of the rotating shaft side spacer group 81 and / or the case side spacer group 82. As a result, like the mixing and stirring apparatus A as the first and second embodiments, the adjustment work and assembly / disassembly work of the constant gap t of the mixing and stirring unit 80 can be performed easily and quickly, and maintenance work and the like can be performed. Can be performed efficiently.

A mixing stirrer t constant gap X rotation direction 10 device main body 20 mixing stirring case 29 rotating shaft 30 mixing stirring function unit 60 rotating side mixing stirring member 70 fixed side mixing stirring member 79 mixing stirring channel 80 mixing stirring unit

Claims (2)

A mixing agitation case that forms a mixing agitation chamber is connected to an inflow path for feeding a plurality of fluids to be mixed and agitated, and a delivery path for delivering a mixed and agitated mixture is connected to the mixing agitation case. Inside, the rotation shaft linked to the rotation drive source is horizontally mounted,
A rotating side mixing stirrer having a large number of through holes in the axial direction is attached to the rotating shaft, and the pair of fixed side mixing stirrers are fixed in a face-to-face state by interposing the rotating side mixing stirrer in the mixing stirring case. Between these mixing agitators, a mixing agitating flow path that extends while meandering in the radial direction from the center to the periphery when viewed from the direction perpendicular to the axial direction of the rotating shaft is formed. The channel is connected to an inlet formed by opening at the center of one fixed-side mixing agitator, and an outlet formed between the other fixed-side mixing agitator and the peripheral edge of the rotating-side mixing agitator. A mixing and agitating device characterized in that it is communicated. The rotating side mixing stirrer and the fixed side mixing stirrer arranged in a face-to-face state are used as one mixing stirrer unit, and a plurality of mixing stirrer units are disposed along the rotating shaft in the mixing stirrer case for mixing. mixing and stirring device according to claim 1, characterized in that the stirring unit to each other were serially fluidly connected.

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