KR102300428B1 - High-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortices - Google Patents

Abstract

The present invention relates to a high-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortexes. Stirring efficiency is further improved by a multi-vortex mixing scheme. An operation time is reduced, and a failure rate is reduced during usage. Also, quality stabilization is greatly helped through minimization of sediment. The high-efficiency mixed magnetic impeller stirrer comprises: a tank bottom surface fixing plate (20) provided at the center of the bottom of a stirring tank (11); first, second, and third rotor shaft installation holes (111, 112, 113) drilled from the center of the tank bottom surface fixing plate (20); individually installed first, second, and third rotors (121, 122, 123) installed at the first, second, and third rotor shaft installation holes (111, 112, 113); first, second, and third impellers (151, 152, 153) assembled with a rotor head (R-1) of each of the individually installed first, second, and third rotors (121, 122, 123); first, second, and third rotor-rotating driven gears (131, 132, 133) coupled to the lower ends of the individually installed first, second, and third rotors (121, 122, 123); a driving gear (140) formed at the center between the three first, second, and third rotor-rotating driven gears (131, 132, 133); and a driving shaft (141) coupled to a lower portion of the driving gear (140).

Description

High-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortices

The present invention is a high-efficiency mixed magnetic impeller stirrer using multiple vortex and sediment suppression, which further increases the stirring efficiency by the multi-vortex mixing method, shortens the working time and reduces the failure rate during use, and also greatly helps in quality stabilization through the minimization of deposits. it's about

In general, in the process of manufacturing, storing, reprocessing, etc. of food or medicine, a stirring device for mixing two or more raw materials to be input as much as possible evenly in a stirring tank of a certain capacity is essential.

Although there are various models of agitation device used at this time, it is possible to effectively drive the impeller inside the tank by using the rotating power of the motor installed outside the tank without penetrating the tank. A magnetic impeller stirrer, which is known to be particularly suitable for agitation in the manufacture of pharmaceuticals, is representative.

That is, the magnetic impeller agitator includes a rotor installed outside the stirring tank and rotated by a motor; an impeller installed inside the stirring tank and realizing agitation by generating a vortex in the liquid raw material; a separation plate installed at the bottom of the stirring tank to separate the inside and outside of the stirring tank; It consists of magnets installed on the rotor and impeller, respectively, to enable the transmission of rotational force using magnetic force. one of

However, the existing magnetic impeller stirrer generates sediment on the bottom of the tank during use, greatly impairing the agitation quality, and requires an additional washing process to remove the sediment, as well as the steady management, maintenance, and repair of whether sediment remains. There was a problem that had to be accompanied.

That is, in the conventional magnetic impeller agitator of FIG. 1, the components necessary for the rotation of the stirring device including the central axis of the impeller are installed inclined at a certain angle, which is configured to enable effective stirring of the upper raw materials, but this is the impeller high-speed The flow of the vortex and rising liquid flow (the phenomenon in which the mixed liquid is swirled up by the vortex and rises upwards) due to rotation also deviate from the direction of the cylindrical tank, and there is a certain limit to the stirring efficiency due to the inclination of the liquid flow (repetitive circulation of the ascending and descending liquids). Of course, sediment accumulates on the bottom of the tank bottom on the opposite side where the impeller is installed.

In order to supplement this problem, the applicant of the present application has registered and registered Korean Patent Registration No. 10-1463225 ('Magnetic stirring device structure for easy discharge and sediment suppression'),

This is "a stirring tank 11 having a convex downward curvature or a sloping slope toward the center of the bottom surface is provided, and the separation plate 20 separating the inside and the outside of the stirring tank 11 is stirred. It is installed in the lower part of the tank 11, is installed outside the stirring tank 11, is provided with a rotatable rotor 30 according to the driving of the motor, is installed inside the stirring tank 11 to stir the raw materials The impeller 40 is provided, and the rotor 30 and the impeller 40 are provided with magnets, respectively, so that the rotational force of the rotor 30 installed outside the stirring tank 11 is the stirring tank 11 by the magnetic force of the magnet. In the magnetic stirring device configured to be delivered to the impeller 40 installed therein, the separation plate 20 is coupled to the center of the lower portion of the stirring tank 11 by welding to the lowest of the stirring tank 11 . A welding plate 21 coupled to a position and having a through hole 22 formed in the center thereof, and an insertion groove detachably coupled with a bolt to the upper portion of the welding plate 21 and connected to the through hole 22 inside ( 26) is formed and a cylindrical seating protrusion 25 protruding upward from the welding plate 21; Consisting of, the welding plate 21 discharges the stirred raw material inside the stirring tank 11 and is connected to the discharge pipe One or more outlets 23 are provided so that the raw material can be smoothly discharged to the lowest place of the stirred tank 11 whose bottom surface is curved downward, and the rotor 30 has a first magnet provided therein. It is inserted into the insertion groove 26 of the seating protrusion 25 together with (31) and is installed to be rotatably spaced apart from the seating protrusion 25 by a certain distance, and the impeller 40 is the inner side of the body 41. The cylindrical seating projection is provided with a second magnet 42 magnetically connected to the first magnet 31 on the periphery, and a plurality of stirring blades 400 are provided on the outer periphery of the body 41 in a radial form at regular intervals. Covered on (25) and configured to be freely rotatable, the agitating blade 400 facilitates the horizontal liquid flow that pushes in the lateral direction during rotation. On the other hand, the cylindrical seating protrusion 25 is provided with a coupling groove 27 in the upper center of the central axis of the impeller 40 or at an angle within 10° so as to be generated, and the circumference of the coupling groove 27 is provided. has a fixing groove 29 having a first leg portion 28 formed therein; The impeller 40 includes a support shaft 43 fixedly coupled to the coupling groove 27; a rotating shaft (46) fitted to the outside of the support shaft (43) and provided with a seating portion (44) on the outer periphery and provided with a fixing portion (45) corresponding to the fixing groove (29) at the lower portion; The rotating body 48 is hinged so as to be freely rotatable to the seating part 44 of the rotating shaft 46 and the second angle part 47 is formed on the outer periphery. It has a seating groove 49 corresponding to the second leg portion 47 and is rotatably coupled to the seating protrusion 25”.

However, in the case of this prior document, the vortex and vortex phenomena appearing when rotating with a single impeller in the inner center of the stirred tank, such as the water level outside the tank center rises significantly higher, the deviation is too large, more severe In this case, even the impeller and the rotating body supporting it may be exposed to the air, and in this case, friction and high heat are generated due to the lack of liquid acting as lubrication and cooling in the non-contact counterpart by the magnetic magnetic material between the rotating body and the impeller. The rotating body or impeller may be damaged.

The rotating body with a magnet inside the patent has a very thin case that surrounds the magnet so that a constant magnetic force can be displayed toward the outside, so it can be easily damaged if friction or high heat occurs during high-speed rotation.

Furthermore, the prior literature has an urgent need for improvement, such as having a certain limit in increasing the stirring efficiency and quality due to excessive deviation of vortex and vortex appearing during impeller operation (the water level outside the tank center rises much higher than the water level at the center of the tank).

Accordingly, in the present invention, the vortex and vortex generated by the impeller are generated in multiple within the diameter range of the stirred tank having a certain capacity, and the stirring efficiency can be further increased through their organic association relationship, as well as the bottom of the stirred tank. In addition to greatly reducing and minimizing the accumulation of sediment on the surface, it is also possible to completely remove a small portion of the sediment that may remain through a new sediment discharge means from the tank bottom to the outside. It was completed as a technical task with an emphasis on providing a high-efficiency mixed magnetic impeller agitator using multiple vortex and sediment suppression that greatly contributes to efficiency and quality improvement.

The present invention for realizing the above technical problem is a tank bottom surface fixing plate 20 provided in the center of the bottom of the stirring tank (11); first, second, and third rotor shaft installation holes (111, 112, 113) drilled from the center of the tank bottom surface fixing plate (20); Individually installed first, second, and third rotors (121, 122, 123) installed in the first, second, and third rotor shaft installation holes (111, 112, 113); first, second, and third impellers (151, 152, 153) assembled to each rotor head (R-1) of the individually installed first, second, and third rotors (121, 122, 123); first, second, and third driven gears (131, 132, 133) for rotor rotation coupled to lower ends of the individually installed first, second, and third rotors (121, 122, 123); a driven gear 140 configured in the center between the first, second, and third driven gears 131, 132, 133 for rotating the three rotors; It includes; a driving shaft 141 coupled to a lower portion of the driving gear 140 .

In the present invention, the first, second, and third impellers are installed in multiple three axes at each three points on the inner bottom of the stirred tank, and the lower part is partitioned by a triple partition wall between them, thereby adding to the liquid mixture in the stirred tank. When agitating, three-point multiple vortex is generated, and as it rises upward, it is possible to further increase the high-efficiency ascending liquid flow and agitation efficiency that are merged and associated with each other, and it is greatly helpful in the complete discharge and removal of sediments that may accumulate on the bottom surface, etc. useful invention.

1 is a reference diagram showing a conventional magnetic stirring device.
Figure 2 is a perspective view showing a preferred embodiment of the present invention in a state in which the upper and side walls of the chemical storage tank are removed.
Figure 3 is a partial exploded perspective view showing a main part of the magnetic stirring device presented in the present invention.
Figure 4 is an exploded perspective view showing each component of the magnetic stirring device presented in the present invention.
5 is a perspective view showing a tank bottom surface fixing plate according to the present invention.
6 is a plan view showing a planar state of the present invention in a state in which the upper and side walls of the chemical storage tank are removed.
7 is a cross-sectional view illustrating the internal structure of the present invention.
8 is an exemplary view showing the front and planar state of the auxiliary impeller according to the present invention.

The high-efficiency mixed magnetic impeller stirrer using the sediment suppression and multiple vortex of the present invention will be described more based on the accompanying drawings as follows.

That is, the present invention is a cylindrical stirred tank for accommodating a certain capacity and having a concave bottom inside (11);

A tank bottom surface fixing plate 20 that is firmly fixed to the center of the bottom of the stirring tank 11 for the purpose of separating the inside and outside of the tank and installing an impeller inside the tank;

First, second, and third rotor shaft installation holes (111, 112, 113) drilled for multiple installation of the rotor at three points each having a constant radius and an isometric angle from the center of the tank bottom surface fixing plate 20;

The first, second, and third rotor shaft installation holes 111, 112, and 113 are respectively inserted into a plurality of rotor heads R-1 having a magnetic built-in at the upper part, and the rotor shaft R having a constant diameter and length at the lower part. -2) formed individually installed first, second, and third rotors (121, 122, 123);

The impeller support holder (E-1) is first inserted into each rotor head (R-1) of the individually installed first, second, and third rotors (121, 122, 123), and then assembled thereon, and the object to be stirred according to high-speed rotation First, second, and third impellers (151, 152, 153) to cause a triple vortex and vortex phenomenon;

The first for rotating the rotor for receiving rotational power required for driving the individually installed first, second, and third rotors 121, 122 and 123, respectively, and coupled to the lower ends of the individually installed first, second, and third rotors 121, 122, and 123 ,2,3 driven gears (131,132,133);

It is located in the center between the first, second, and third driven gears (131, 132, 133) for rotating the three rotors, and rotates by simultaneously applying the rotational power transmitted from the lower side to the first, second, and third driven gears (131, 132, 133) for rotating the three rotors. a prime mover gear 140;

It is a characteristic gist of including;

In addition, the tank bottom surface fixing plate 20 is installed between the first, second, and third impellers 151 , 152 , 153 protruding at three points within a constant radius and equal angle range from the center, and a constant distance from each other is maintained. The three first, second, and third impellers (151, 152, 153) constitute a triple partition wall 170 that allows a triple vortex phenomenon and an ascending liquid flow to appear without interference with the rotation, or

In any one of the first, second, and third impellers 151, 152, and 153, an extended rotational shaft 155 of a predetermined length is fixedly coupled to the center of the upper end thereof, and a plurality of stirring blades of a predetermined length are provided on the upper portion of the extended rotational shaft 155. It is possible to configure the auxiliary impeller 156 to.

As such, in the present application, the first, second, and third impellers 151, 152, and 153 are installed in multiple three axes at each of three points on the inner bottom of the stirred tank 11, and the lower part is formed by a triple partition wall 170 between them. It is a useful invention that can further increase the high-efficiency ascending liquid flow and agitation efficiency that are combined and associated with each other as the three-point multiple vortex is generated when stirring the liquid mixture in the stirred tank by partitioning the

In addition, by configuring the auxiliary impeller 156, a three-point multiple vortex is generated when the liquid mixture in the stirring tank is stirred, and as it rises upward, the three-point multiple vortex smoothly joins, and the high-efficiency ascending liquid flow associated with each other And it is a useful invention to further increase the stirring efficiency.

At this time, it is effective to form the stirring blades of the auxiliary impeller 156 longer than the stirring blades of the first, second, and third impellers 151, 152, 153 so that the three-point multiple vortex can smoothly merge. .

When the liquid mixture in the stirred tank is stirred according to the present invention, the first, second, and third impellers 151, 152, and 153 are essentially configured, and the triple dividing wall 170 and the auxiliary impeller 156 are selectively used. By configuring one or more of them together, the stirring efficiency can be further increased to realize a high-efficiency stirrer.

In addition, on the upper surface of the entire tank bottom surface fixing plate 20 corresponding to the bottom surface of the stirred tank 11, the discharge induction slope inclined downward from one end to the other end so that the sediment can be guided to one side and collected. ) is formed, and by providing the outlet 161 at the point of the lowest height due to the inclination angle, it is possible to completely discharge/remove the sediment that may remain after discharging the stirred mixture.

And, the first, second, and third impellers 151 , 152 and 153 installed in triple are first, second, and third rotor shafts drilled at three points having a constant radius and an isometric angle from the center of the tank bottom fixing plate 20 . It is assembled to the rotor head R-1 of the individually installed first, second, and third rotors 121, 122, and 123 axially installed in the installation holes 111, 112, and 113.

At this time, the first, second, and third impellers 151, 152, and 153 are not directly fitted to the rotor head R-1, but are non-contact (built-in mark) to the rotor head R-1 through the impeller support holder E-1. Assembled in a state that is finely separated due to the netic).

In addition, on the bottom surface of the tank bottom surface fixing plate 20 in which the first, second, and third rotor shaft installation holes 111, 112, and 113 are formed, the rotor shaft R-2 and the bearing necessary for rotation of the rotor shaft R-2 are provided. The housings 181 for supporting the rotor shaft that hold them are fixed, respectively.

The three first, second, and third driven gears 131 , 132 , and 133 for rotating each of the rotors are respectively coupled to the lower portion of the rotor shaft R-2 protruding below the housing 181 for supporting the rotor shaft, and the rotor rotation Since the structure is rotated by receiving rotational power from one prime mover 140 positioned between the exclusive first, second, and third driven gears 131, 132, 133, when only the single prime gear 140 rotates, the The first, second, and third driven gears 131, 132, and 133 for rotating the three rotors that are geared are rotated at the same time.

At this time, the driving shaft 141 coupled to the lower portion of the driving gear 140 is rotatably connected by a motor M installed on one side, and the upper end of the driving shaft 141 corresponds to the tank bottom. A housing 182 for holding the upper end of the driving shaft 141 and a bearing necessary for rotation is installed on the bottom surface of the surface fixing plate 20 .

In addition, the housing 182 for supporting the upper side of the motor shaft and the three housings for supporting the rotor shaft 181 arranged at regular equiangular intervals based thereon are integrally connected to the tank bottom surface fixing plate (20). It is more preferable to combine it with the bottom surface of

Therefore, when one driving shaft 141 and the driving gear 140 are rotated using the motor M installed outside the stirring tank 40, the first, second, and third driven gears 131, 132, 133 for rotating the three rotors and It is possible to simultaneously rotate the first, second, and third impellers 151, 152, and 153 of the three shafts configured in the stirring tank 40 via the individually installed first, second, and third rotors 121, 122, and 123.

In addition, the triple partition wall 170 is located between the first, second, and third impellers 151, 152 and 153 located at three points within a constant radius and equal angle range from the center of the tank bottom surface fixing plate 20, the rotation of each impeller. It enables partitioning up to a certain height in a state that does not interfere with the impeller, and three partition bars 171 that partition between each impeller extend at an angle equal to the center of the three divisions, and the three sides interfere with the rotation of the impeller. A guide curvature 172 for avoidance is formed.

The triple partition wall 170 of this type is easy to use because it is possible to appropriately adjust the upper and lower heights according to the situation, if several are manufactured in a unit of a certain thickness and then fixed in an overlapping form by a certain number.

In addition, when fixing the triple partition wall 170 with a bolt, it is to be fixed in a state in which the lower gap maintaining piece 174 is inserted so that a liquid flow space 173 through which a part of the mixture can pass can be secured at the lower part. necessary.

11: agitation tank 20: tank bottom surface fixing plate
111, 112, 113: first, second, and third rotor shaft installation holes
121,122,123: Individually installed first, second, and third rotors
131,132,133: 1st, 2nd, 3rd driven gear for rotor rotation
140: prime mover gear 141: drive shaft
151,152,153: 1st, 2nd, 3rd impeller
160: discharge induction slope 161: discharge port
170: triple partition wall 171: partition bar
172: guide curvature 173: liquid flow space
174: lower gap maintaining piece 181: housing for supporting rotor shaft
182: housing for upper shaft support E-1: holder for supporting impeller
M : Motor R1 : Rotor head
R2 : rotor shaft

Claims (5)

A stirring tank 11 having a cylindrical shape and a concave bottom inside to accommodate a constant capacity;
A tank bottom surface fixing plate 20 that is tightly fixed to the center of the stirring tank 11 in an airtight manner for the purpose of separating the inside and outside of the tank and installing an impeller inside the tank;
first, second, and third rotor shaft installation holes (111, 112, 113) drilled for multiple rotor installations at three points each having a constant radius and an isometric angle from the center of the tank bottom surface fixing plate 20;
Each of the first, second, and third rotor shaft installation holes 111, 112, and 113 are multiplely inserted, the rotor head R-1 having a magnetic built-in upper part is formed, and the lower part rotor shaft R having a constant diameter and length. -2) formed individually installed first, second, and third rotors (121, 122, 123);
The impeller support holder (E-1) is first fitted to each rotor head (R-1) of the individually installed first, second, and third rotors (121, 122, 123), and then assembled thereon, and the object to be stirred according to high-speed rotation first, second, and third impellers (151, 152, 153) for causing a triple vortex and vortex phenomenon;
A first for rotating the rotor for receiving the rotational power required for driving the individually installed first, second, and third rotors 121, 122 and 123, respectively, and coupled to the lower ends of the individually installed first, second, and third rotors 121, 122, and 123 ,2,3 driven gears (131,132,133);
It is located in the center between the first, second, and third driven gears (131, 132, 133) for rotating the three rotors, and rotates by simultaneously applying the rotational power transmitted from the lower side to the first, second, and third driven gears (131, 132, 133) for rotating the three rotors. a prime mover gear 140;
a prime mover shaft 141 coupled to the lower part of the prime mover gear 140 and applying the rotational power of the motor M installed outside to the prime mover gear 140;
High-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortices, characterized in that it comprises a.
The method of claim 1,
Installed between the first, second, and third impellers (151, 152, 153) protruding from the center of the tank bottom surface fixing plate (20) at three points within a constant radius and equal angle range, the three thirds with a constant distance from each other 1,2,3 impellers (151, 152, 153) triple partition wall 170 that allows a triple vortex phenomenon and a rising liquid flow to appear without interference in rotation; High efficiency mixed magnetic impeller agitator.
The method of claim 1,
In any one of the first, second, and third impellers 151, 152, and 153, an extended rotational shaft 155 of a predetermined length is fixedly coupled to the center of the upper end thereof, and a plurality of stirring blades of a predetermined length are provided on the upper portion of the extended rotational shaft 155. High-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortexes, characterized in that it further comprises an auxiliary impeller (156).
The method of claim 1,
On the entire upper surface of the tank bottom surface fixing plate 20, a discharge induction inclined surface 160 inclined downward from one end to the other end is formed,
High-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortex, characterized in that the discharge port 161 is provided at the lowest point due to the inclination angle to promote the perfect discharge of the sediment.
3. The method of claim 2,
The triple partition wall 170,
Three partition bars 171 that partition between the impellers are formed at a third angle, and guide curvatures 172 for avoiding interference during rotation of the impeller are formed on each three sides,
It is constructed by manufacturing a plurality of units of a certain thickness and then overlapping them in multiple stages by a certain number and fixing them.
High-efficiency mixed magnetic impeller stirrer using sediment suppression and multiple vortex, characterized in that the lower gap maintaining piece 174 is inserted and fixed in the lower portion so that the liquid flow space 173 can be secured.

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