JPH0478431A - Agitator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention is directed to an apparatus for stirring a fluid containing at least two components.

[Conventional technique 1i1 In the conventional stirring device, a circulation pipe is placed in the stirring tank 81X2, and a fluid flow is generated inside or outside the ring pipe.[
was placed, and the fluid was circulated between the inside and outside of the circulation pipe, and the fluid was circulated throughout the inside of the stirring tank.

By installing a circulation pipe, the efficiency of fluid circulation is improved.
Increasing the bundling agitation efficiency is also achieved, but 1! When a problem occurs in the space within the ring pipe or between the circulation pipe and the inside of the stirring tank, it is difficult to carry out repair work within those spaces.

[Problem to be solved by the invention] The purpose of the present invention is to solve the problem inside the stirring tank! If the liquid inside the stirring tank is properly stirred and the 41i ring tube is not used,
The purpose is to provide a stirring device for stirring.

[Means for Solving the Problems] A stirring device according to the present invention includes a stirring tank containing a fluid to be stirred, a rotating shaft that rotates within the stirring tank, and a first blade that is i in the radial direction of the rotating shaft. The first blade is rotated around the axis of the rotation axis, and the first blade is also rotated at a first angle that is not parallel to and not perpendicular to the direction of rotational movement of the first blade. A first blade that pushes the fluid in the stirring tank in a direction between the direction parallel to the longitudinal direction of the rotating shaft and the moving direction of the first blade as the first blade rotates due to elongation, and the second blade. and a second vane extending in the radial direction of the rotary shaft and pivoted by the rotary shaft around the axis of the rotary shaft; a second angle extending at a second non-perpendicular angle, thereby pushing the fluid in the stirring vessel as the second blade pivots in a direction between a direction parallel to the longitudinal direction of the axis of rotation and the direction of movement of the second blade; The second blade extends outward from the first blade in the radial direction of the rotation axis, and the second blade extends parallel to the longitudinal direction of the rotation axis of the fluid pushed by the first blade. The direction of the flow component in the direction is opposite to the direction of the flow component in the direction parallel to the longitudinal direction of the axis of rotation of the fluid pushed by the second vane, which is a stirring device.

1 Effect j The stirring device according to the present invention has a first blade and a second blade that extend in the radial direction of the rotating shaft and are rotated by the rotating shaft around the axis of the rotating shaft, and the second blade is attached to the rotating shaft. The direction of the flow component in the direction parallel to the longitudinal direction of the axis of rotation of the fluid that extends outside the first vane in the radial direction of the fluid that is pushed by the first vane is the rotation of the fluid that is pushed by the second vane. Since the direction of the flow component in the direction parallel to the longitudinal direction of the axis is opposite, the flow of the two fluids flowing in opposite directions will occur in the stirring tank, especially between the first blade and the second blade. In the direction parallel to the longitudinal direction of the rotating shaft (7° in the extending space, good stirring is achieved. Also, in the area near the rotating shaft, the first blade moves away from the rotating shaft). In the part where the fluid flows in the direction parallel to the longitudinal direction of the rotation axis by the second blade, the fluid flow is formed in the direction parallel to the five-handed direction of the rotation axis by the D first blades. The direction of fluid flow in the part near the rotation axis is opposite to the direction of fluid flow in the part far from the rotation axis in the direction parallel to the longitudinal direction of the rotation axis by the second blade. , Circulation is achieved in the interspace between the stirring tank and the rotating shaft along the longitudinal direction of the rotating shaft.

Therefore, the same circulation as in the prior art is achieved by a structure different from that in the prior art, and unlike the prior art, the mixing of fluids occurs over a long distance within the stirring tank. Compared to stirring by
Achieves 1li stirring performance.

Embodiment 1 FIGS. 1 to 6 illustrate the present invention in which a fluid containing at least two components is stirred and the housing is heated to a temperature below the crystallization temperature of one component and at a temperature below the crystallization temperature of the other component. An example will be shown in which it is applied to a device W that rapidly settles due to temperature and crystallizes and precipitates only one component.

The cylindrical and vertical stirring tank 1 has a jacket 2 on the outside through which a cooling medium is supplied from a refrigerant port 14 and discharged from a cold kettle outlet 15, and a lid 3 having a fluid supply port 12 at the top thereof has a jacket 2. An electric motor 4 with a speed reducer is installed, and the electric motor 4 with a speed reducer causes a rotary shaft 5 extending vertically at approximately the center inside the stirring tank 1 and supported by a C bearing 11 at the bottom to rotate at the same time. At the bottom of the stirring el 11, there is a fluid discharge order 13
is provided. On the rotation@5, a plurality of first blades 6 extending from the rotating shaft 5 to both sides in the radial direction are spaced apart in the longitudinal direction of the rotating wheel 5. As shown in FIGS. 3, 5, and 6, there may be five rotating shafts. Deflection degree is 90
It is preferable that a combination of two adjacent first blades 6 at the same time be provided on the rotating shaft 5. Each of the radially outermost portions of the first vanes 6 is provided with a -h of the pair of separator plates 7, which is connected to the other of the pair of separator plates 7;
A second blade 8 extends in the radial direction of the rotating shaft 5 from the second side. In this way, the second blade 8 is arranged and fixed to the outside of the second blade fB6 in the radial direction of the rotating shaft 5. As shown in FIG. 3, the scraping blade 10 is attached to the tips of the plurality of second blades 8 via a plate 9. Alternatively, as shown in FIGS. 5 and 6, the scraping blade 10 is an i-scraping blade so as to connect the tips of at least two of the plurality of second blades 8. 10 It is preferable that the scraping blade 10 is attached via a plate 9 (7).
! By removing crystals attached to the inner wall of the stirrer 11, high heat transfer efficiency between the fluid and the inner wall of the stirrer 11, which is cooled by the jacket, is maintained. A baffle plate 16 extends substantially parallel to the longitudinal direction of the rotating shaft 5 and curved in the direction of the rotating shaft 5 at the upper part of the stirring portion 1fi1. The baffle plate 16 serves to direct the flow of the liquid that has risen to the top of the stirring W11 downward, thereby promoting circulation in the vertical direction inside the stirring tank 1.

The first blade 6 and the second blade 8 each extend at a first angle and a second angle that are neither parallel nor perpendicular to the direction of rotation movement, and rotate the fluid in the stirring tank 1 as the blade rotates. Axis 5
and the direction parallel to the longitudinal direction of the blade and the direction of movement of the blade, and due to the difference between the first angle and the second angle with respect to the direction of rotational movement, that is, the first angle with respect to the direction of rotational movement is a positive angle. If so, the second angle with respect to the direction of rotational movement is negative, and the direction of the flow component of the fluid pushed by the first blade 6 in a direction parallel to the longitudinal direction of the rotation axis 5 is the first angle. This is opposite to the direction of the flow component of the fluid pushed by the two blades 8 in a direction parallel to the longitudinal direction of the rotating shaft 5.

When the stirring W11 is filled with a fluid containing at least two types of R components, the inside of the jacket 2 is cooled to a temperature below the crystallization temperature of one component of the fluid and above the crystallization temperature of the other component. The cold tofu is washed away, and the rotating shaft 5 rotates.

When the rotating shaft 5 rotates, the first blade 6 inserts fluid in a direction between the rotating direction and a direction parallel to the longitudinal direction of the rotating shaft 5, causing the fluid to flow horizontally or downwardly. Due to the difference in angle between the first blade 6 and the second blade 8, the flow direction in the direction parallel to the longitudinal direction of the rotating shaft 5 near the rotating wheel 5 generated by the first blade 6 and the second blade 8 This is opposite to the flow direction in the direction parallel to the longitudinal direction of the rotating shaft 5 near the inner wall of the stirring tank 1 away from the rotating shaft 5, which is generated by &i.

In this way, circulation in the vertical direction within the stirring W11 and in the radial direction of the rotating shaft 5 is achieved. Furthermore, since the flows in opposite directions intersect in a direction parallel to the longitudinal direction of the rotating shaft 5, agitation within the fluid is promoted and crystal growth of the cooled components is promoted. In addition, I! in the stirring tank 1! In order to achieve a ring, the stirring tank 1 only needs to have a rotating ring 5, a first blade 6, and a second blade 8, so if a problem occurs in the stirring tank 1 and it needs to be repaired, Even if this occurs, it is easy to access the inside of the stirring tank 1.

[Brief explanation of the drawing]

FIG. 1 is a sectional view 1 showing an embodiment of the stirring device according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. FIG. 4 is a perspective view showing 11F of the rotating shaft 5, the first blade 6, and the second blade 8 in an embodiment of the present invention, and FIG. 5 is a sectional view showing another embodiment of the stirring device according to the present invention. 4 is a perspective view showing the arrangement of the rotating shaft 5, the first blade 6, and the second blade 8 of the embodiment shown in FIG. 4, and FIG. 6 is a rotating shaft of another embodiment of the stirring device according to the present invention. 5 is a perspective view showing the arrangement of the first blade 6 and the second blade 8. FIG. 1... Stirring tank, 5... Rotating shaft, 6... First blade,
8...Second blade, 10...Scraping blade.

Claims (5)

[Claims] (1) A stirring device, which includes a stirring tank that contains a fluid to be stirred, a rotating shaft that rotates within the stirring tank, and a first surface that extends in the radial direction of the rotating shaft and rotates around the axis of the rotating shaft. a first surface that is pivoted by an axis of rotation, the first surface also extending at a first angle that is not parallel and not perpendicular to the direction of pivoting of the first surface, thereby causing agitation as the first surface pivots; a first surface that pushes the fluid in the tank in a direction between a direction parallel to the longitudinal direction of the rotating shaft and the direction of movement of the first surface; and a second surface that extends in the radial direction of the rotating shaft and rotates. a second surface that is pivotally moved by the axis of rotation about the axis of the shaft, the second surface also extending at a second angle that is not parallel and not perpendicular to the direction of the pivoting movement of the second surface, whereby the second surface a second surface that pushes the fluid in the stirring tank in a direction between the direction parallel to the longitudinal direction of the rotation axis and the movement direction of the second surface as the rotation of the rotation axis occurs; The direction of the flow component in the direction parallel to the longitudinal direction of the axis of rotation of the fluid pushed by the first surface extends outward from the first surface in the radial direction of the fluid pushed by the second surface. A stirring device in which the direction of the flow component is opposite in the direction parallel to the longitudinal direction of the shaft. (2) A stirring device according to claim 1, wherein the stirring tank has a substantially circular interior, and the rotating shaft extends approximately at the center of the circular interior. (3) A stirring device according to claim 1, wherein the first surface is coupled to the rotating shaft and the second surface is connected to the first surface. (4) A stirring device according to claim 2, wherein the first surface is coupled to the rotating shaft, the second surface is connected to the first surface, and the most of the second surface in the radial direction of the rotating shaft A stirring device in which a scraping blade adjacent to the circular interior is attached to the outer part. (5) A stirring device according to claim 4, in which at least two pairs of a first surface and a second surface connected to the first surface are arranged in the longitudinal direction of the rotating shaft, and A stirring device in which at least two of the pairs are connected by scraping blades.