KR101783939B1 - Stirring tank for hidensity viscous material - Google Patents

Abstract

An object of the present invention is to provide a stirring tank for highly viscous fluid which is capable of rapidly and efficiently stirring a high viscosity fluid such as cortar charged in a stirring tank with a single bidirectional stirring type stirring blades with a uniform viscosity .
In order to accomplish the above object, according to the present invention, there is provided a stirring tank for highly viscous fluids, comprising an inlet for a high viscosity fluid which is opened and closed by a hatch and a stirring tank provided with a discharge port for controlling discharge of a high viscosity fluid stirred by the valve, And a stirring tank for a high viscous fluid, which is composed of a large-sized stirring vane-equipped stirring vane wheel for simultaneously circulating the viscous fluid in the opposite direction along the axis.

Description

{Stirring tank for hidensity viscous material}

TECHNICAL FIELD The present invention relates to a stirring tank for a high viscosity fluid, and more particularly to a stirring tank for a highly viscous fluid capable of stirring a high viscosity fluid such as Corttar with a uniform viscosity by means of a single stirring blades.

A stirring tank for a fluid (including a stirrer) is a one-way stirring type and a two-way simultaneous stirring type in which a stirring wing car is installed in a tank having a fluid inlet and a discharge port and the stirring blades are rotated by a driving means.

The one-way stirring type stirring tank which is an electronic one is designed to stir a single stirring blades or a single bladed blades with a plurality of impellers attached to the rotating shaft with a distance therebetween, in one direction.

In the latter two-way stirring type, two stirring blades having different directions of impelos or helical blades are installed side-by-side in a stirring tank, and the fluid is stirred and stirred in both directions.

Among the one-way stirring type stirring tanks which are electronic, the registered utility model No. 20-0431631 is characterized in that the agitated water charged in the conical type stirring tank is agitated by the agitating wing attached to the agitating wing axle with the radius of the agitating tank, The stirrer is rotated in the centrifugal direction at a different stirring speed and is vertically and vertically mixed by a vortex generated as a stirring object hits a spiral rotation control piece attached to a stirring wing axle.

In addition, in Japanese Patent No. 10-0423894, a vortex generating device is attached in an axial direction to a vertical axis in a stirring vane wheel having a flat rotary vane with a predetermined height difference on its longitudinal axis, thereby inducing up-down convection of the aqueous solution, The stirring tank is designed so that the up-and-down stirring action of the aqueous solution is added to the stirring.

Here, the one-way stirring type stirring tank was developed as a low-viscosity aqueous solution having a very low viscosity. Since the fluid is flowed in one direction, the stirring efficiency per hour is very low.

Particularly, when the stirring operation is temporarily stopped due to a high viscosity such as a mixture of cortar or cortar, the viscous substance is hardened due to gravity due to gravity and hardly stuck to the bottom of the stirring tank. It is inappropriate.

In the case of a stirring tank for a low viscosity fluid, since the fluidity of the stirring material and the fluctuation at the time of alternation are large, unidirectional stirring is sufficient, but in the case of a high viscosity fluid, there is also a problem.

On the other hand, the bidirectional stirring type stirring tank is provided with a pair of stirring blades having different rotational directions in the upper and lower parts of the inside of the stirring tank, as shown in Japanese Utility Model Laid-Open Publication No. 20-1998-041086.

The viscosity of the viscous material in the stirring tank for the high viscous fluid is settled by the action of gravity, so that the upper layer is liable to have a low viscosity and the lower layer is liable to have a high viscosity.

To use agitated fluids at the design level of viscosity - for example, to coat the surface of grapes - to agitate in the direction of equalizing the viscosity at a point near the bottom of a stirred tank with a high discharge viscosity, efficient and efficient agitation need.

However, the bidirectional agitation type stirring tank having the above-described structure is not suitable as a stirring tank for high viscous fluid because exchangeable agitation of a low viscosity fluid and a high viscosity fluid is not carried out. As a result, Is inevitable because of the inevitability of the large-scale design, and thus there is a problem in that it is not suitable as a stirring tank for high-viscosity fluids mounted on vehicles.

Public Utility Model Publication No. 20-1998-041086 (Publication date: September 15, 1998)

Registration Utility Model No. 20-0431631 (Registered Date: November 15, 2006)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a method of mixing a high viscosity fluid such as cortar charged into a stirring tank with a single bidirectional stirring- The present invention provides a stirring tank for a high viscosity fluid.

In order to accomplish the above object, according to the present invention, there is provided a stirring tank for highly viscous fluids, comprising an injection port for a high viscosity fluid which is opened and closed by a hatch, and a stirring tank provided with a discharge port for controlling discharge of a high viscosity fluid stirred by the valve, And a stirring tank for a high viscous fluid, which is composed of a large-sized stirring vane-equipped stirring vane wheel for simultaneously circulating the viscous fluid in the opposite direction along the axis.

The stirring tank is horizontally shaped in which the viscous fluid in the upper and lower layers is liable to be stirred, and the stirring vane wheel is installed in the lower part of the inside of the agitating tank in which the viscosity is kept highest to improve the hygroscopicity so as to optimize the viscosity of the viscous fluid.

There is also heating means effective to dissolve the condensed or frozen viscous fluid in the stirring tank and to prevent freezing of the viscous fluid during the winter season.

The heating means prevents the freezing of the viscous fluid by heating the fluid to a level that does not carbonize the high viscosity fluid and does not cause the explosion due to the accumulation of the beak, thereby preventing the stirring blades and the flow of the high viscosity fluid .

The heat source for heating the heating means is steam, hot water, combustion gas or the like of a dedicated boiler provided outside the stirring tank.

INDUSTRIAL APPLICABILITY As described above, the stirring tank for a highly viscous fluid according to the present invention has the following effects.

First, in the present invention, a large-sized stirring vane is rotated with a large radius so that a high viscosity fluid at a position far from the rotation axis is horizontally moved in one direction The small stirring blade is rotated at a smaller radius than the large stirring blade and the high viscosity fluid near the rotation axis, that is, the high viscosity fluid inside the large stirring blade is horizontally circulated in the direction opposite to the above, Can be quickly and efficiently homogenized.

Second, the present invention can dissolve the coagulated or frozen highly viscous fluid in the agitation tank by heating the fluid, thereby facilitating agitation of the highly viscous fluid and preventing freezing in the winter season, thereby promoting agitation of the viscous fluid.

1 is a front view showing a stirring blade of a stirring tank for a high viscosity fluid according to the present invention,
2 is a side view showing a stirring blade of a stirring tank for a high viscosity fluid according to the present invention,
3 is a side view of a partly incised stirring tank for a highly viscous fluid with a stirring vane of a stirring tank for a highly viscous fluid according to the present invention,
FIG. 4 is a partially cut-away plan view of a stirring tank for a highly viscous fluid, in which a stirring vane of a stirring tank for a highly viscous fluid according to the present invention is embedded;
5 is a sectional view showing a bearing of a stirring tank for a highly viscous fluid according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view showing a stirring blade of a stirring tank for a high viscosity fluid according to the present invention, FIG. 2 is a side view showing a stirring blade of a stirring tank for a high viscosity fluid according to the present invention, and FIG. FIG. 4 is a partial sectional view of a stirring tank for a highly viscous fluid in which a stirring vane of a stirring tank for a high viscosity fluid according to the present invention is embedded. Fig.

As shown in these drawings, the stirring tank 20 for a highly viscous fluid according to the present invention is provided with an injection port 21 for a high viscosity fluid which is opened and closed by the hatch 22 and an outlet port for controlling the discharge of the highly viscous fluid stirred by the valve A stirring blade (12) having a large-sized stirring blade (12, 13) for stirring a high-viscosity fluid simultaneously in the opposite direction along its axis on a single rotating shaft (11) in the stirring tank (20) The vehicle 10 is installed.

As shown in FIG. 1, the stirring vane wheel 10 includes a rotating shaft 11, a large stirring vane 12, and a small stirring vane 13.

Particularly, when the rotary shaft 11 is rotated by the driving means, it is necessary to design the rotary shaft 11 in consideration of low power consumption, large bending stress, light weight, installation in the stirring tank 20 and prolonged use period of the bearing 27 Thick steel tubes are preferred.

Further, among the iron tubes, a fluid non-affinity material is preferable because it does not clump or harden due to the presence of a high viscosity fluid on the surface thereof, thereby preventing the stirring of the high viscosity fluid.

In addition, the large stirring blade 12 has a large turning radius and the small stirring blade 13 has a small turning radius as compared with the large stirring blade 12.

When the rotary shaft 11 rotates in one direction, the large stirring blade 12 and the small stirring blade 13 cause the high viscosity fluid to flow forward and the small stirring blade 13 to the rear side To circulate a high viscosity fluid.

Particularly, the large and small stirring blades (12, 13) have a part of the spiral wing in order to minimize the vortex generated during the process of the sticking of the high viscosity fluid during the stirring and the return flow in the opposite direction, It is formed in a drilled shape.

The large and small stirring vanes 12 and 13 are attached to the rotating shaft 11 at predetermined pitches so that the stirring directions are opposite to each other.

Particularly, when the stirring direction is staggered in the large and small stirring vanes 12 and 13, the stirring of the high viscosity fluid is faster and the stirring efficiency is higher than that of the unidirectional rotating type.

2, the large-size stirring vane 12 and the small-sized stirring vane 13 are provided concentrically on the rotary shaft 11 so that the high-viscosity fluid is uniformly distributed And stirred.

Particularly, the maximum rotation radius r1 of the large stirring blade 12 is such that the outer end is as close as possible to the bottom of the stirring tank 20 so that the bottom layer high viscosity fluid of the stirring tank 20 is also stirred and stirred, The maximum turning radius r2 of the small stirring vanes 13 is made smaller than the minimum turning radius r3 of the large stirring vanes 12 and the minimum turning radius r2 of the large stirring vanes 12 r3) is formed between the large and small stirring vanes (12, 13) so as to promote stirring of the high viscosity fluid between the large and small stirring vanes (12, 13).

The small stirrer blade 13 has a recirculation tunnel 15 in which a high viscosity fluid is circulated between the rotating shaft 11 and the minimum rotating radius r4 so that the minimum rotating radius r4 is larger than the outer diameter of the rotating shaft 11 As shown in FIG.

Thus, the highly viscous fluid which has been circulated is struck at the point where the small-sized stirring vane 13 and the rotary shaft 11 meet, and the swirling flow is retarded and the vortex phenomenon is also prevented.

As shown in Fig. 3, the stirring vane 10 described above is built in the stirring tank 20. As shown in Fig.

A high viscosity fluid injection port 21 is formed at the top of the stirring tank 20 and the injection port 21 is a conventional stirring tank 20 which is opened and closed in the form of a hatch 22 capable of maintaining a sealed state.

Particularly, a stirring blade 10 is inserted into a barrel type stirring tank 20 having a circular or elliptical cross section and the front end and the rear end of the rotating shaft 11 are connected to the front end plate 23 and the rear end plate 24 26, and 27 so as to form a stirring tank 20 for a high viscosity fluid.

At this time, the maximum rotation radius of the large stirring vane 12 does not invade the bottom surface of the stirring tank 20, so that friction between the large stirring vane 12 and the large stirring vane 12 is avoided when the fluid is stirred.

The bearings (26, 27) are provided with leakage preventing sealing means for completely preventing the leakage of the high viscosity fluid in the stirring tank (20).

The driving means for the stirring blades includes a motor 30 mounted on the front rigid plate 23 of the tank 20, a driving sprocket 31 mounted on the shaft end of the motor 20 and a rotary shaft 11 exposed to the outside of the stirring tank 20, The drive sprocket 31 and the driven sprocket 32 are exemplified by a driven sprocket 32 mounted at the front end of the drive sprocket 31 and a driven sprocket 32 surrounded by a drive sprocket 31 and a driven sprocket 32, If replaced by a belt pulley, the chain may be replaced by a V-belt.

In this case, the shaft 26 of the front and rear end plates 23 and 24 is provided with the liquid leakage preventing sealing means in such a state that the stirring wing car 10 is inserted into the stirring tank 20 in an arrow D The small agitating vane 13 causes the highly viscous fluid on the side of the turbulent flow passages 14 and 15 to flow in the direction of the arrow d2.

The large high-viscosity fluid and the high-viscosity fluid near the rotary shaft 11 are simultaneously circulated in opposite directions to each other.

Particularly simultaneous recirculation of the near-viscid fluid in the opposite directions continues during the operation of the agitator blades 10, and simultaneous recirculation in both directions can be performed by the single agitator blades 10, shortening the stirring time of the high viscosity fluid, .

In addition, the internal structure of the stirring tank 20 is monotonous, light in weight, significantly reduced in production cost, and also has a large effect of saving driving energy cost during operation, compared to the case of applying two sets of stirring vanes 10 having different flow direction .

Here, if the high viscosity fluid remaining after use is left to stand, it solidifies and is frozen in the winter season.

As described above, the coagulated or frozen highly viscous fluid can not be drawn out of the stirring tank 20 and used.

Preparing for this situation is a means of heating.

As shown in FIG. 4, the heating means 40 warms and melts or freezes the coagulated or frozen viscous fluid to prevent the coagulation or freezing of the residual viscous fluid. In the stirring tank 20 So as to be gradually melted from the bottom side of the stirring tank 20.

Here, it is preferable that the heating means 40 is a metal pipe, and has a high thermal conductivity and oil resistance.

The inlet 41 of the heating means 40 is penetrated by a rear end plate 24 and connected to an outflow pipe or a communication pipe such as a boiler or a combustor ) To allow vapor or flue gas to dissolve or freeze the viscous fluid into the atmosphere.

On the other hand, the vortex prevention rods 17 are attached to the rotary shaft 11 in the orthogonal direction.

The vortex prevention rods (17) are arranged in such a manner that the vortex prevention rods (12) and (13) cancel out vortexes which are likely to be generated in a sudden flow by colliding with the high viscosity fluids in the respective directions while the high viscosity fluids flow in different directions, And promotes stirring to a homogeneous viscosity.

5, the leakage preventing sealing means 50 of the bearings 26 and 27 is provided with an inner bearing 52 and an outer bearing 53 that are firstly sealed by an O-ring in the bearing box 51 A pore 54 is formed in the bearing box 51 between the inner bearing 52 and the outer bearing 53 in the direction of the core.

The pores 54 are connected through a conduit to a pneumatic tank or a pneumatic pump not shown to inject compressed air into the internal space 55 of the bearing box between the inside bearing 52 and the outside bearing 53.

The compressed air always injected into the pores 54 forms an airbag in the gap between the inner space 55 and the end of the rotating shaft lying between the inner bearing 52 and the outer bearing 53, The sealing surface is maximized by increasing the contact surface between the O-ring and the inner bearing 52 and between the O-ring and the outer bearing 53 by pressing the O-ring, thereby preventing the highly viscous fluid in the stirring tank from leaking out of the bearings 26 and 27.

As described above, the stirring tank 20 for the high viscous fluid according to the present invention has been described with respect to the high viscous fluid of the agitated object. However, the present invention is not limited to the high viscous fluids, and if the technical idea of the present invention can be realized Powder, granule, low-viscosity fluid, or the like.

The preferred embodiments described in the specification of the present invention are intended to be illustrative, not limiting, and the scope of the present invention is indicated by the appended claims, and all modifications that come within the meaning of the claims are included in the present invention. Be

10: stirring blades 11: rotating shaft
12: large stirring wing 13: small stirring wing
14: Sewer tunnel 15: Sewer tunnel
17: Vortex prevention rods 20: Stirring tank
21: inlet 22: hatch
23: front end plate 24: rear end plate
26: Bearing 27: Bearing
30: motor 31: drive sprocket
32: driven sprocket 34: chain
40: Heating means 41: Entrance
42: exhaust port 50: leakage preventing sealing means
51: Bearing box 52: Inner bearing
53: Outer bearing 54: Porosity
55: inner space D: rotation axis direction
d1: Fluid flow direction due to large agitating blade rotation
d2: Fluid flow direction due to small agitating blade rotation
r1: Large stirring blade Maximum rotation radius r2: Small stirring blade Maximum rotation radius
r3: Large stirring blade Minimum rotation radius r4: Small stirring blade Minimum rotation radius

Claims (4)

And a stirring tank having an injection port for opening a high viscosity fluid which is opened and closed by a hatch and a discharge port for controlling the discharge of a high viscosity fluid stirred by the valve, and a high viscosity fluid is simultaneously circulated in the stirring tank, Wherein a stirring vane wheel equipped with a small stirring vane is provided, and a high-viscosity fluid-rotating tunnel is formed between the large-sized stirring vane and the small-sized stirring vane and between the rotating shaft and the small-sized stirring vane, A heating means for melting or solidifying or freezing a frozen highly viscous fluid is installed in the stirring tank so as not to interfere with the inner bottom of the stirring tank so as not to interfere with the operation of the stirring vane, An inner bearing and an outer bearing, both of which are sealed by an O-ring, are mounted Leakage preventing sealing means is provided in the bearing box between the inner bearing and the outer bearing and the pore is pierced in the direction of the center of gravity. The pores are injected into the inner space of the bearing box between the inner bearing and the outer bearing, The compressed air that is constantly injected into the pores is formed in an end portion of a rotating shaft between the inner bearing and the outer bearing and in the gap of the inner space while an O-ring in contact with the inner space is pressed, And the high viscosity fluid in the stirring tank is blocked to the outside of the bearing. delete delete delete

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