JPH09239249A - Liquid mixing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid mixing apparatus increased in grinding and mixing capacity several times as compared with a conventional apparatus by improving a buffle into a rotary type one having projection members of a mixed liquid and liquid passing holes, and providing function holding liquids to be mixed in a mixing member acting zone and function grinding and mixing the liquids to be mixed to the buffle. SOLUTION: In a liquid mixing apparatus sending liquids to be mixed into a mixing chamber 1 from the inlets 5, 7 provided to one end thereof to mix them by the mixing members rotated within the mixing chamber 1 while grinding the same, rotary buffles 17 having liquid projection members provided on the outer peripheral side thereof between the mixing members 12 rotated within the mixing chamber 1 and having liquid passing holes provided to the plate surfaces thereof are arranged.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an apparatus for mixing liquids. More specifically, it relates to a device for finely pulverizing a liquid into micron units and uniformly and efficiently mixing the liquid.

[0002]

2. Description of the Related Art In a liquid mixing apparatus, a liquid to be mixed is fed from an inlet at one end into a mixing chamber, is pulverized by a mixing member rotating in the mixing chamber and mixed, and the mixed liquid is fed out from an outlet at the other end. A ring-shaped fixed baffle is provided between the mixing members so as to correspond to the gap formed between the outer circumference and the inner wall of the mixing chamber, and the liquid to be mixed that has passed through the gap between the mixing member and the inner wall of the mixing chamber is provided by this baffle. A liquid mixing apparatus for bringing the effect of crushing and mixing by introducing the mixing member into the working area is known from Japanese Patent Publication No. 7-182.

[0003]

However, the fixed baffle of the above-mentioned device has a function of guiding the liquid to be mixed, which has passed through the gap between the mixing member and the mixing chamber, to the next liquid to be mixed, so that the liquid to be mixed is crushed. It does not contribute to mixing at all and does not have a function of retaining the liquid to be mixed in the working area of the mixing member. Therefore, in order to uniformly mix the liquid to be mixed as fine particles of a few microns, the apparatus becomes a large-sized one in which several tens of mixing members and a fixed baffle are arranged in parallel, and the fixed baffle is placed on the mixing chamber side. Since the mixing member has a complicated structure in which the mixing members are alternately fitted to the shaft side while determining the intervals with the collars, the device becomes very expensive and consumes a lot of power. The present invention has been made in order to solve the above-mentioned problems, and improves the baffle to a rotary type having a projection member for the mixed liquid and a passage hole for the liquid so that the liquid to be mixed can be applied to the baffle by the working area of the mixing member. It is a technical object to provide a liquid mixing apparatus capable of increasing the crushing and mixing ability to several times that of the conventional apparatus by having a function of holding the liquid to be mixed and a function of crushing and mixing the liquid to be mixed. .

[0004]

In order to solve the above-mentioned problems, a liquid mixing apparatus according to the present invention feeds a liquid to be mixed into a mixing chamber from an inlet at one end and grinds it by a mixing member rotating in the mixing chamber. In a liquid mixing device that mixes and sends the mixed liquid from the outlet of the other end, a liquid projection member is provided on the outer peripheral side between the mixing members rotating in the mixing chamber, and a liquid passage hole is provided on the plate surface. It is characterized by adopting a configuration in which rotating baffles are arranged at a predetermined interval, and the passage holes for liquid to be mixed provided on the plate surface of the rotating baffles become gradually narrower from the front toward the rear in the direction of rotation, and both side edges thereof are formed. In addition, the rotary baffle and the mixing member existing between the rotary baffles form one block, and the processing capacity can be set by increasing or decreasing the number of blocks. Door also features a.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a liquid mixing apparatus according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a mixing chamber, which is formed into a cylindrical cross section as shown in FIG. 1 and whose both ends are closed by lids 2 and 3 as shown in FIG. When the mixing member and the rotating baffle which will be described later rotate in the direction shown by the arrow in FIG. 1, an inlet 5 for feeding one of the liquids to be mixed from the pipe 4 is provided tangentially to the rear upper part of the end on the lid 2 side. In the center of the front side, an inlet 7 for feeding the other of the mixed liquids through the pipe 6 is provided in a centripetal manner, and at the lower front side of the end portion on the lid 3 side, an outlet 9 for sending out the mixed liquid to the pipe 8 is provided in a tangential manner. .
At the center of the mixing chamber 1, a rotary shaft 11 rotated by a motor 10 mounted on the lid 3 side is arranged.

1 to 3, reference numeral 12 denotes a mixing member. As shown in FIG. 3, a hole 13 provided in a boss 12a is fitted into the rotary shaft 11 to form a key of the rotary shaft 11. The key 15 projected from the hole 13 is engaged with the groove 14 so as to rotate integrally with the rotary shaft 11, and the boss 12a
A plurality of (three in FIG. 1 and FIG. 3) blades 1 around the
2b are radially projected to form triangles, quadrangles, and other irregularities 16 on the front edges of the blades 12b in the rotation direction and the peripheral edge of the boss 12a. As shown in FIG. 3, they are attached to the rotary shaft 11 with a phase difference so that they are arranged at equal intervals, so that the crushing and mixing action that is averaged as much as possible during rotation is performed. If there are three pieces, one set is three pieces, if there are two pieces, one set is four pieces, and if there are four or more pieces, two pieces are one set. Combine with and form one block.

In FIGS. 1 to 4, reference numeral 17 denotes a rotary baffle. As shown in FIG. 4, a hole 18 provided at the center of the disc is fitted to the rotary shaft 11, and the key of the rotary shaft 11 is fitted. A key 19 protruding into the hole 18 is engaged with the groove 14 so as to rotate integrally with the rotating shaft 11, and the mixed liquid is projected to the outside by the rotation on the outer circumference, and the outer circumference and the mixing chamber 1
An uneven projection member 20 for forming a shielding layer with the projection liquid is provided around the entire circumference as shown in FIG. 4 or partially at predetermined intervals as shown in FIGS. As shown in FIG. 4, a plurality of passage holes 21 are formed at equal intervals as shown in FIG. 4 so that the width in the front in the rotational direction becomes wider and the width in the rear in the rotational direction becomes gradually narrower. Irregularities such as triangles 22
Etc. are formed. The positions of the liquid passage holes 21 provided in each of the rotary baffles 14 are displaced from each other as shown by the solid line and the dotted line in FIG. 4 so that the liquid passage conditions in the entire area of the mixing chamber 1 are averaged as much as possible. To

The rotary baffle 17 preferably has the above-mentioned structure in terms of efficiency, but may have the structure shown in FIGS. The rotary baffle 17 has a rotary shaft 11
The attachment state to is the same as that described above. However, the shapes of the member 20 for projecting the liquid and the passage hole 21 for the liquid are different. That is, the liquid projection member 20 has a structure in which small blades that are cut and bent leftward and rightward as shown in FIG. 6 and concave portions such as a semicircle are formed at a predetermined interval on the outer periphery of the disk, and the liquid passage hole 21 is formed as shown in FIG. It is assumed that a large number of small circular holes are formed in the plate surface as shown in Fig. 7 and the peripheral edge thereof is a sharp blade type as shown in the cross section of Fig. 7.
In addition, the rotating baffle 17 allows the liquid to be handled to rotate on the rotating shaft 11.
In the case of the property of damaging the seal member of the above, the lid 2 side and the lid 3
It is desirable that the liquid passage hole 21 is not provided in the one located on the side so that no harmful liquid acts on the sealing member. However, when handling a liquid that does not damage the seal member, the liquid can be blocked by the lid 2 and the lid 3, and in this case, the rotary baffles 1 at both ends are blocked.
7 can be omitted.

Next, the operation of the liquid mixing apparatus having the above-mentioned structure will be described. The mixing member 12 and the rotary baffle 17 are rotated by the rotary shaft 11 and, for example, C from the inlet 5.
When the heavy oil is sent tangentially and the water component obtained by adding an emulsifier to water is sent from the inlet 7 in a centripetal manner, the C heavy oil entrains the water component and advances to the working area of the mixing member 12, where the mixing member 12 rotates. Then, the liquid to be mixed is struck by the unevenness 16 provided on the boss 12a and the blade 12b to finely pulverize the liquid, and the two liquids are mixed. At this time, the rotating baffle 17 rotates together with the mixing member 12 to project the liquid to be mixed to the outside by the projection member 20, and forms a shield layer for the liquid to be mixed between the outer periphery of the rotating baffle 17 and the inner wall of the mixing chamber 1 to mix the liquid to be mixed. Liquid is rotating baffle 1
Since the flow velocity of the liquid to be mixed is suppressed by not advancing to the next working zone of the mixing member 12 unless it passes through the passage hole 21 of No. 7, the liquid to be mixed is promoted by the mixing member 12 for crushing and mixing. At the same time, when passing through the passage hole 21, the action of crushing and mixing is also applied by the hole wall, so that the liquid to be mixed is crushed and mixed very efficiently, and this action is performed with the mixing member 12 in the next stage. Since the baffle 17 is also used in the same manner, it is also possible to produce an emulsified fuel oil by finely dividing the water component into fine particles of a few microns and dispersing the water component in C heavy oil evenly between the adjacent rotating baffles 17 and 17. A block which is completely achieved by a device in which only one block composed of a set of existing mixing members 12 is provided on the inlet side and the outlet side, and which is sandwiched between the blocks on the inlet side and the outlet side. The number The amount of processing by the apparatus if reduction can be increased or decreased freely set reliably.

As described above, the liquid mixing apparatus according to the present invention uses the rotary baffle having the projection member for the mixed liquid and the passage hole for the liquid, and has the function of holding the mixed liquid in the working area of the mixing member. And the function of crushing and mixing the liquids to be mixed, the crushing and mixing ability has been increased several times compared to the conventional fixed baffle type, so the device can be downsized to a fraction of the conventional one. Moreover, since the mixing member and the rotary baffle are coaxially installed with the collar fixed at a certain interval, and this shaft is supported in the mixing chamber, not only the cost of the device can be greatly reduced, but also the power consumption is reduced. It can also have a remarkable effect on the saving of.

[Brief description of drawings]

FIG. 1 is a vertical side view showing an embodiment of a liquid mixing apparatus according to the present invention.

FIG. 2 is a vertical sectional front view with a part thereof removed.

FIG. 3 is a side view showing the configuration and combination of the mixing members in the above, with the mixing chamber being cut longitudinally.

FIG. 4 is a side view showing the structure of the rotary baffle and the position of mutual relation in the same as above with a longitudinal section through the mixing chamber.

FIG. 5 is a side view showing another example of the above rotary baffle with the mixing chamber being cut longitudinally.

FIG. 6 is a plan view of the above rotary baffle.

FIG. 7 is a cross-sectional plan view of the above rotary baffle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mixing chamber 5, 7 Inlet 9 Outlet 12 Mixing member 17 Rotating baffle 20 Projection member 21 Passage hole 22 Unevenness

Claims (3)

[Claims] 1. A liquid mixing apparatus in which a liquid to be mixed is fed from an inlet at one end into a mixing chamber, is pulverized and mixed by a mixing member rotating in the mixing chamber, and the mixed liquid is fed out from an outlet at the other end. A liquid mixing apparatus, wherein a liquid projection member is provided on an outer peripheral side between mixing members rotating in a mixing chamber, and rotary baffles having liquid passage holes provided on a plate surface are arranged at predetermined intervals. 2. The liquid passage hole provided on the plate surface of the rotary baffle has a width that gradually decreases from the front side to the rear side in the rotation direction, and has a structure having unevenness on both side edges thereof. Liquid mixing equipment. 3. A block comprising adjoining rotary baffles and a mixing member existing between the rotary baffles, and the processing capacity can be set by increasing or decreasing the number of the blocks. The liquid mixing apparatus according to claim 1 or claim 2.