JPS62125836A - Mixer apparatus - Google Patents

Abstract

PURPOSE:To increase uniform stirring effect by providing both a stirring body having plural stirring blades which are supported freely fine-movably in the inside of a conduit for fluid to be mixed and a vibration source which is joined to the stirring body and gives fine-mobile motion in accordance with an inputted electrical signal. CONSTITUTION:A diaphragm 30 is flexible and a flexible stirring body 24 is made freely fine-mobile in the axial direction and can nearly by positioned and held in a prescribed position by means of a fixed position for a flange 32. A moving coil 40 being a vibration source is fixed on a stator 38 by an insulated supporting frame 42 and required driving current is supplied to the moving coil 40 from an external driving circuit. This driving current is preferably supplied to, e.g. a flexible printed circuit plate provided in the surface of the stator 38 and the diaphragm 30 and required driving current can be supplied to the moving coil 40 without damaging the flexibility of the diaphragm 30.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is equipped with Mi, 1Fj', in particular, the stirring blade is basically stationary in the guide 11, and when the fluid to be mixed flows, the fluid is stirred at each stirring point. The present invention relates to an improvement of a static stirring type mixer device in which a desired stirring action is performed while repeating division and merging using blades.

Conventional technology 1 Uniform stirring and mixing of multiple types of fluids, mainly liquids or powders, is extremely important in various industrial fields.
f1ffi, and particularly in chemical processing J3, there is a demand for a mixer device d that can provide efficient and uniform mixing.

Generally, mixing is carried out by driving stirring blades in a mixing tank with a motor, etc., but in the past, there was no need for any driving source, and mixing occurred naturally by simply following the flow of the fluids to be mixed. A static stirring type mixer device is well known, in which a large number of stirring blades are arranged in a conduit that guides the fluid to be mixed, and division and merging are repeated in sequence according to the flow of the fluid, achieving efficient mixing even in a short conduit. It is effective and has been put into practical use in various fields.

[Problems to be Solved by the Invention] The above-mentioned static agitation type mixer device has the advantage of not requiring any VJ source and can provide a mixing action that is sufficiently efficient for practical use, but in recent years In order to mix particles more uniformly and with finer particle size than before in various food and fine chemical fields, conventional static mixer devices may not be able to provide a sufficiently satisfactory effect. Ta.

In addition, on the other hand, depending on the stirring blade that is driven in the evening, the There is a problem that a large amount of kinetic energy is given to the 11 mixture itself, which adversely affects its chemical properties.Therefore, there is a need for a new mixer device that solves the problems of both types of J3. It was rare.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to improve the mixing characteristics of a stationary 82-type mixer neck, and to provide an improved system that can efficiently mix fine particles and uniformly. The purpose of the present invention is to provide static mixed type Mikili mounting.

[Step F to solve the problem] In order to achieve the above objective 1.1, the present invention provides a structure in which the stationary stirring blade, which was conventionally completely fixed inside the conduit, is movable within the conduit. The invention is characterized in that such a stirring body is supported by a vibration source and subjected to fine motion in a predetermined mode within the conduit.

In the present invention, the fibrillation motion is selected in various ways depending on the properties of the fluid to be mixed, and the fibrillation frequency and L-mode can be set as appropriate, and the fibrillation motion can be set as appropriate, and the fibrillation motion can be set as appropriate, and the fibrillation motion can be set as appropriate. J: According to the present invention, the stirring 1γ blade itself is! It is essentially a stationary stirring type, and stirring is performed by dividing and merging the flow of the merging fluid, but in addition to these large stirring actions, the stirring blade itself undergoes a fine movement due to the vibration source. The agitation during the separation and merging is extremely fine and uniform, and when applied to good products, the agitation has a smooth texture without any roughness, and is extremely suitable for agitation of polymers, etc. in the fine chemical field. be.

In the present invention, any method can be selected as the 1JiiB source, but an electromagnetically driven vibration source or a super-rich vibration source that can be easily electrically processed is mainly suitable.

[Embodiment J] A preferred embodiment of the present invention will be described below based on the drawings.

FIG. 1 shows an embodiment in which a mixer device according to the present invention is driven by an electromagnetically driven vibration source.

The conduit 10 has a cylindrical shape and is made of a material that is not affected by the fluid to be mixed, for example, plastics such as vinyl chloride, stainless steel, etc. In the embodiment, the conduit 10 is is provided with two introduction holes 10a and 10b. Branch pipes 12.14 are airtightly fixed to both the introduction holes 10a and 10b, and different types of fluids to be mixed, indicated by symbols A and B, flow from each branch pipe 12.14 toward the conduit 10. be guided by

Each type of 'i' 212.14 is connected to a flow path (not shown) through a flange 16.18, and in the embodiment, a
3, each of the fluids A and B to be mixed is sent from the flow path to the ``I conduit'' 10 by natural discharge or pressure feeding by a pump.

A flange 20 is fixed to the other end of the conduit 10 to connect a downstream conduit, not shown but as is well known.
It is connected to bamboo and the mixed fluid is led to the next process.

The conduit 10 includes a plurality of Ij:! In the present invention, this Ij 21'l' body 2/1 is basically the same as the conventional stationary one-party 1γ end. It is characterized in that it is supported within the conduit 10 by a fibrillator r1-.

However, the stirring body 24 is covered in the same manner as the conduit 10 described above).
The shaft portion 24a is made of plastic or stainless steel that will not be affected by fluids, and one end of the shaft portion 24a has a slider portion 24b that plays with the inner diameter of the conduit 10, and the other end has a small diameter support shaft. 24c is provided, the support shaft 24c being supported by a bearing 26 fixed within the conduit 10.

Therefore, it is understood that one stirring body 2/1 is supported within the conduit 10 in such a manner that fine vibrations can be suppressed arbitrarily in the axial direction or rotational direction.

The stirring body 24 has a plurality of stirring blades (R22
is fixed, and the stirring blade 22 of the embodiment (has a half-moon shape).

FIG. 2 shows the fixed state of the stirring body shaft 2/la and each stirring blade 22 in the embodiment as seen from the axial direction. The blades are fixed in a 24-symmetrical manner on both sides of the shaft portion 24a, and successively adjacent blades are aligned with a phase difference of 60 degrees.

As is clear from FIG. 2, according to this embodiment, 172
The stirring blades 22 are provided at a considerably thick ratio of 4j to the frontage area of the channel, and as described later, each stirring blade 2
When the blade 2 makes a fibrillating motion, the fluid divided by the adjacent blades is captured by the fibrillation of the blade 22, and the vibrations given by the adjacent blades interfere with each other. By bending it together, it is possible to achieve a fine IQ 17 action by 1!7.

As described above, according to the present invention, the stirring body 24 is connected to the conduit 10.
In the present invention, in order to actually drive the stirring body 24, a vibration source 28 is installed at one end of the conduit 10, and there are 13 vibration sources. The vibration source 28 in J3 in the IM example consists of an electromagnetic drive (1°! vibration source).

The vibration source 28 of the embodiment includes a diaphragm 30 for transmitting vibrations to the stirring body 24, and the diaphragm 30 made of a thin metal plate has its outer periphery between the flange 32 and the fixing ring 34, which are airtightly fixed to the guide f110. Strongly supported. Of course, paragins 36 are provided at both ends of the diaphragm 30 to prevent fluid leakage.

The inner periphery of the guiaphragm 30 is fixed to the slider portion 24b of the stirring body 24, and for this purpose, a stator 38 is screwed and fixed to the end of the flange portion 24b, so that the diaphragm 30 is firmly attached to the stator 38. It is fixed to the end of the flange portion 24b.

The front 11d diaphragm 30 can freely move the stirring body 24 in the axial direction due to its own flexibility, and can position and hold the stirring body 24 at approximately a predetermined position by being fixed to the flange 32. A movable coil 40 for forming a vibration source is attached to the insulating support frame 4 on the stator 38.
2, and a desired drive current is supplied to the movable coil/IO from an external drive circuit (not shown). This drive current is preferably supplied through, for example, a flexible printed circuit board disposed on the surface of the stator 38 and the diaphragm 30.
A desired drive current can be supplied to the moving coil 40 without impairing the flexibility f[.

On the other hand, a core/1
4 is fixed, and this core 44 is connected to the disk yoke/
I6 is integrally fixed to the fixing ring 34 via the ring magnet 48 and ring yoke 50.

Each yoke 46, 50 is made of a magnetic material, and the ring magnet 48 is made of celadon in its axial direction, so that a desired magnetic top is formed between the inner circumference of the ring yoke 50 and the outer circumference of the right end of the core 44. provided, the movable coil 4
0 is disposed within this magnetic 1' top, and as described above, by supplying the desired alternating current to the moving coil 40, the moving coil 40 receives axial imaging.
As a result, the agitator 24 provided within the conduit 10 undergoes a fibrillating motion in the axial direction.

Although the movement of the vibration source 28 is a reciprocating motion along the axial direction of the stirring body 24 in a dead tree manner, the fibrillation mode is prevented by the unsprung load side of the diaphragm 30, that is, the mass of the stirring 1st rest 24 and the structure of the shaft support. Not only a simple movement along the axial direction, but also a predetermined twist to the stirring body 24! The stirring blades 24 shown in FIG. 2 can be driven in the circumferential direction according to a desired mode.

As described above, according to this embodiment, by supplying a predetermined alternating current to the movable coil 40 of vibration #fA28, the stirring body 24 or the one-party itching blade 22 is moved in the axial direction or circumferential direction within the conduit 10. Fibrillating in a predetermined mode, the fluids A and B to be mixed introduced into the conduit 10 can be efficiently stirred and mixed not only by the static stirring action of the stirring blade 22 but also by the fibrillating movement.

The driving current is 5011 which is usually a commercial frequency.
Repetition frequencies of the order of 2 to 1 llz are preferred;
By arbitrarily setting such a frequency, the agitating body 24 has a maximum speed of 51nllll to 02nlll along its axial direction.
The axial movement of about 11 IIll is repeated, thereby achieving the efficient stirring and mixing described above.

In the embodiments described above, an electromagnetically driven flI type vibration source using a moving coil is shown, but it is also possible to fix the coil and arrange a permanent magnet on the movable side.

Further, although the vibration source in the above embodiment is an electromagnetically driven vibration source, it is also possible to use an ultrasonic vibration source in the present invention.

In the case of an ultrahigh vibration source, the diaphragm 30 shown in Figure 1
A piezoelectric vibrator made of barium titanate or the like is attached to the diaphragm 30, and by directly applying a driving voltage to this piezoelectric vibrator, the diaphragm 30 vibrates at J due to the piezoelectric effect of the piezoelectric vibrator. IQ+1 is transmitted to integral 24 to perform the desired mixing and stirring IY action.

[Effects of the Invention] As explained above, according to the present invention, vibration 5≦if) is applied to the stirring body, which is a static stirring ff element, disposed in the conduit.
This gives the fluid a fibrillating motion, which causes the fluid to repeat the 0 minute 11J11 and merging motions to the stirring blades, causing the fluid to undergo the desired shaking motion due to the fibrillating motion. As a result, the effect of the static agitation mixing action can be greatly enhanced, and a very simple mixer device can be used especially for mixing fine particles.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a preferred embodiment of the mixer device according to the present invention using an electromagnetically driven vibration source; FIG. FIG. 2 is a cross-sectional view seen from the axial direction of the body. 10... Conduit 22... Stirring blade 24... Stirring body 28... Pregnant vJ source.

Claims (3)

[Claims] (1) A conduit that guides the fluid to be mixed, a stirring body that is movably supported within the conduit and has a plurality of stirring blades, and a stirring body that is connected to one end of the stirring body and that is connected to the stirring body according to an electrical input signal. a vibration source that causes a fibrillating motion, the mixer device is characterized in that the mixer device includes a vibration source that causes a fibrillating motion of a stirring body in a conduit in a predetermined mode to promote a stirring action of a fluid to be mixed. (2) A mixer device according to claim (1), wherein the vibration source is an electromagnetically driven vibration source. (3) A mixer device according to claim (1), wherein the vibration source is an ultrasonic vibration source.