KR101600691B1 - Blending and transfer apparatus - Google Patents

Abstract

The present invention relates to an agitating and conveying device, and it is an object of the present invention to provide an agitating and conveying device, which has been required in a conventional agitator for conveying a stirring material, It is possible to remarkably improve the conveying efficiency of the stirring material by preventing the cavitation phenomenon and to prevent the stirring material from being introduced into the actuator portion, thereby improving the durability and the operation reliability.

Description

[0001] Blending and transfer apparatus [0002]

The present invention relates to a stirring and conveying apparatus, and more particularly to a stirring and conveying apparatus which does not require a pump compared to a stirrer in which a stirrer for mixing a liquid and a powder to produce a mixed liquid and a pump for conveying a mixed liquid are integrated, It is possible to prevent the cavitation phenomenon that is generated by mixing the air into the pump chamber due to the whirling generated when the mixed liquid is conveyed to the pump, thereby remarkably improving the conveying efficiency of the stirring material compared to the conventional art, To thereby improve durability and operational reliability.

1 is a view schematically showing a structure of a stirrer used in a process of mixing a liquid and a solid powder to prepare a mixed solution.

1, a general stirrer includes an impeller 101 and a motor 103 mounted on the top of the impeller 101. The driving of the stirrer is controlled by the impeller 101 connected to the motor 103, And the liquid in the reaction tank 105 is mixed with the solid powder due to the rotation of the impeller 101.

A pump 109 is provided in the discharge pipe 107 connected to the lower portion of the reaction tank 105 so that the mixed liquid is discharged to the outside through the discharge pipe 107 in the reaction tank 105 by the driving force of the pump 109 have.

However, in such a conventional stirrer, the pump 109 is required to discharge the mixed liquid mixed in the cone type reaction tank 105 through the discharge pipe 107, There is a problem that the mixed liquid can not be discharged smoothly.

When the mixture liquid is transferred from the cone-type reaction tank 105 through the discharge pipe 107 and the pump 109, a whirl due to the rotation of the earth is generated on the discharge surface of the reaction tank 105, And the cavitation phenomenon is generated. As a result, the operation efficiency of the pump 109 is reduced, so that the mixed liquid can not be properly discharged, and time and energy consumption are caused.

Accordingly, the present invention has been made in view of the background described above, and it is an object of the present invention to provide a stirring device which can prevent the cavitation phenomenon, which was generated when feeding a mixed liquid through a pump in a conventional stirrer, And it is an object of the present invention to provide a stirring and conveying device capable of improving the durability and operation reliability by preventing the stirring material from being introduced into the actuator portion.

The objects of the present invention are not limited thereto, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, according to one embodiment of the present invention, there is provided a method of manufacturing a semiconductor device, comprising: a tank portion containing a raw material to be stirred; And an actuator section provided at an end of the rotary shaft, the impeller section being inserted into or drawn out from the tank section through the discharge hole, the actuator section being vertically movably coupled to the lower section of the tank section, A stirring / conveying unit for discharging the stirring material formed by mixing the raw materials to the outside; And a control unit for controlling the stirring / transferring unit.

According to the embodiment of the present invention, the pump, which was previously required for transporting the agitating material in the conventional agitator, becomes unnecessary, and the cavitation phenomenon, which occurs during the transport of the mixed liquid through the pump in the conventional agitator, And the durability and operational reliability can be improved by preventing the stirring material from being introduced into the actuator portion.

1 is a view schematically showing a structure of a stirrer used in a process of mixing a liquid and a solid powder to prepare a mixed solution.
2 and 3 are views showing the structure of a stirring and conveying apparatus according to an embodiment of the present invention.
FIGS. 4 and 5 are views showing a stirring / transferring portion of the stirring and conveying apparatus according to an embodiment of the present invention.
6 is a view showing an impeller portion of a stirring and conveying apparatus according to an embodiment of the present invention.
7 is a view showing a housing part of the stirring and conveying apparatus according to one embodiment of the present invention.
8 is a block diagram briefly showing a configuration of a stirring and conveying apparatus according to an embodiment of the present invention.
FIG. 9 is a flowchart illustrating a step of controlling a stirring process by a control unit in the stirring and conveying apparatus according to an embodiment of the present invention.
10 is a flowchart illustrating a process of controlling a transferring process in a stirring and conveying apparatus according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."

2 and 3 are views showing the structure of a stirring and conveying apparatus according to an embodiment of the present invention. FIGS. 4 and 5 are views showing a stirring / transferring portion of the stirring and conveying apparatus according to an embodiment of the present invention. 6 is a view showing an impeller portion of a stirring and conveying apparatus according to an embodiment of the present invention. 7 is a view showing a housing part of the stirring and conveying apparatus according to one embodiment of the present invention. 8 is a block diagram briefly showing a configuration of a stirring and conveying apparatus according to an embodiment of the present invention. FIG. 9 is a flowchart illustrating a step of controlling a stirring process by a control unit in the stirring and conveying apparatus according to an embodiment of the present invention. 10 is a flowchart illustrating a process of controlling a transferring process in a stirring and conveying apparatus according to an embodiment of the present invention.

As shown in these drawings, the stirring device 200 according to an embodiment of the present invention includes a tank part 201 containing raw material to be stirred and a discharge hole formed at a lower part thereof; And an actuator unit 405 provided at an end of the rotary shaft 403 to extend or retract into and out of the tank unit 201 through the discharge hole. A stirring / transferring unit 203 which mixes the raw materials in the tank unit 201 and discharges the stirring material formed by mixing the raw materials to the outside, And a control unit (801) for controlling the stirring / transferring unit (203).

The lower portion of the tank 201 is formed so that its width (or diameter) gradually decreases as it goes downward, and the lower portion of the tank 201 And a discharge hole is formed in the lower portion.

On the other hand, a raw material injecting section 205 is formed on the upper part of the tank section 201. A sight glass section 207 is formed on a side surface of the tank section 201, So that the stirring and stirring of the raw material in the tank 201 can be confirmed.

A ladder portion 209 is formed on a side surface of the tank portion 201 so that an operator can move up the tank portion 201. The ladder portion 209 is provided on the side of the tank portion 201, (Not shown).

A support leg 213 may be formed at a lower side of the tank 201 and a wheel 215 may be provided at a lower end of the support leg 213.

The stirring / transferring unit 203 is provided with an impeller part 401 which is inserted into or drawn out from the tank part 201 through a discharge hole formed in the lower part of the tank part 201, The stirring / transferring unit 203 is coupled to the lower portion of the tank 201 so as to be movable up and down. The stirring / transferring unit 203 is configured to mix raw materials in the tank 201, Causing the material to be transported to the outside.

An example of the structure of the stirring / transferring unit 203 will be described in detail. The stirring / transferring unit 203 is coupled to a lower portion of the tank unit 201 and includes a discharge pipe 301 through which the stirring material is discharged to the outside A housing portion 409 formed eccentrically and having a support flange portion 407 formed on an outer peripheral side thereof; And a moving flange portion 413 which supports the actuator portion 405 and to which a driving portion 411 for moving the actuator portion 405 upwardly and downwardly is coupled. The driving shaft 415 of the driving portion 411 is supported by a supporting plan And is coupled to the support portion 407.

The housing part 409 is connected to the lower part of the tank part 201. The housing part 409 may be provided in a cylindrical shape and the housing part 409 may include a discharge pipe 301 for discharging the stirring material to the outside, (See Fig. 7).

A supporting flange portion 407 is formed on the outer circumferential side of the housing portion 409. A driving shaft 415 of the driving portion 411 is coupled to the supporting flange portion 407. [

A fastening flange portion 417 is formed on the outer peripheral side of the upper end of the housing portion 409 so as to be coupled to the lower surface of the tank portion 201 with a fixing member such as a bolt.

The driving flange 413 supports the actuator 405 and is coupled to a driving unit 411 for moving the actuator unit 405 up and down. The driving unit 411 includes a cylinder unit And a plurality of driving units 411 may be provided.

An opening and closing member 419 is coupled to the rotating shaft 403 of the actuator unit 405. When the impeller unit 401 is drawn into the tank unit 201, And the discharge pipe 301 is opened when the impeller portion 401 is drawn out of the tank portion 201.

4, in a state in which the driving shaft 415 of the driving unit 411 is drawn into the body of the driving unit 411, the opening and closing member 419 cuts off the discharge pipe 301, 5, when the driving shaft 415 of the driving unit 411 is drawn out of the body of the driving unit 411, the opening and closing member 419 The discharge pipe 301 is opened so that the agitating material can be discharged to the outside through the discharge pipe 301.

6, the impeller portion 401 is provided with a wing portion 603 which is formed at a predetermined interval in the circumferential direction at a central portion of the base portion 601 and is inclined at a predetermined angle with respect to the radial direction And the wing portion 603 is inclined in the impeller portion 401 so that the opening and closing member 419 is connected to the discharge pipe (not shown) When the actuator unit 405 is operated and the impeller unit 401 is rotated in a state where the first and second flow channels 301 and 301 are opened (that is, the state shown in FIG. 5), the stirring material can be discharged to the outside through the discharge pipe 301 naturally , The pump 109, which was provided for transferring the mixed liquid to the outside through the discharge pipe 107 in the conventional stirrer, becomes unnecessary.

6 (a), 6 (b) and 6 (c) are a plan view, a side view, and a bottom view of the impeller portion 401, respectively.

A sealing member 421 may be coupled between the impeller 401 and the rotary shaft 403. The sealing member 421 may be provided as a mechanical seal made of carbon steel.

Since the sealing member 421 is provided between the impeller portion 401 and the rotating shaft 403 to prevent the stirring material from flowing into the actuator portion 405 through the gap between the impeller portion 401 and the rotating shaft 403 .

A blocking member 423 may be coupled to the rotating shaft 403. The blocking member 423 may be formed in a plate shape that is coupled to the rotating shaft 403 and inserted in a radial direction, 423 may be bent downward.

The blocking member 423 is coupled to the rotating shaft 403 so that the stirring member is blocked by the blocking member 423 even when the stirring substance flows down along the outer peripheral surface of the rotating shaft 403, So that it is possible to prevent a failure.

The portion of the actuator 405 where the rotating shaft 403 is exposed is stepped so that even if the stirring material blocked by the blocking member 423 falls downward through the outermost end of the blocking member 423, By the stepped portion ('A' in FIG. 4), it flows naturally outwardly of the actuator portion 405, so that it is also possible to prevent the stirring material from being drawn into the actuator portion 405.

The control unit 801 controls the stirring / transferring unit 203. An example of the process of controlling the stirring / transferring unit 203 by the control unit 801 to control the stirring process will be described in more detail. The controller 801 receives the measured temperature data measured from the temperature sensor 803 provided in the tank unit 201 after the actuator unit 405 is operated and receives the measured temperature data from the operating time data for the operating time of the actuator unit 405 And compares the measured temperature data and the operating time data with preset reference temperature data (set temperature) and reference time data (set time) to determine whether the measured temperature data or the operating time data matches the reference temperature data or the operating time data The actuator unit 405 is stopped.

Here, if the measured temperature data matches the reference temperature data and the operating time data does not match the reference time data, the controller 801 stops the actuator unit 405 for a predetermined time (for example, 15 seconds) The actuator unit 405 can be operated again.

An example of a process of controlling the transferring process of the agitating material by controlling the agitating / transferring unit 203 will be described in more detail. The controller 801 controls the transfer of the agitating material after the actuator unit 405 is operated , Receives the measured pressure data measured from the pressure sensor (805) provided in the tank unit (201), compares the measured pressure data with predetermined reference pressure data, and if the measured pressure data matches the reference pressure data, The rotation speed of the rotation shaft 403 of the actuator unit 405 is increased by reducing the rotation speed of the rotation shaft 403 of the actuator unit 405 for a predetermined time (for example, 5 seconds).

The preset reference pressure data is set on the basis of the weight of the stirring material remaining in the tank unit 201 for each step, by dividing each level of the tank unit 201 in stages.

Since the controller 801 controls the transfer process of the agitating material through the control of the agitating / transferring unit 203, the cavitation phenomenon generated in the conventional agitator can be remarkably reduced, And the amount of the stirring material remaining in the tank 201 can be also reduced.

According to an embodiment of the present invention having such a structure and shape, a pump, which has been essentially required for transporting the agitating material in the conventional agitator, becomes unnecessary, preventing the cavitation phenomenon that has been generated in the conventional agitator, Efficiency and the like can be improved remarkably, and it is possible to prevent dripping of the agitating material into the actuator, thereby improving durability and operational reliability.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them.

It is also to be understood that the terms such as " comprises, "" comprising," or "having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

101: Impeller
103: Motor
105: reaction tank
107:
109: Pump
200: stirring device
201: tank portion
203: stirring /
205: raw material injection unit
207: Sight glass part
209: Ladder portion
211: Handle portion
213: support leg
215:
301: discharge pipe
401: impeller portion
403:
405:
407: support flange portion
409:
411:
413:
415: drive shaft
417: fastening flange portion
419:
421: Sealing member
423:
601: Base portion
801:
803: Temperature sensor
805: Pressure sensor

Claims (8)

A tank portion containing a raw material to be stirred and having a discharge hole formed at a lower portion thereof;
And an actuator section provided at an end of the rotary shaft, the impeller section being inserted into or drawn out from the tank section through the discharge hole, the actuator section being vertically movably coupled to the lower section of the tank section, A stirring / conveying unit for discharging the stirring material formed by mixing the raw materials to the outside; And
And a control unit for controlling the stirring / transferring unit,
And a blocking member coupled to the rotating shaft and extending in a radial direction and having an outermost end bent downward to block the stirring material from flowing into the actuator through the rotating shaft. The method according to claim 1,
The stirring /
A housing portion coupled to a lower portion of the tank portion and having an eccentric discharge pipe through which the stirring material is discharged to the outside and having a support flange portion on the outer peripheral side; And
And a moving flange portion supporting the actuator portion and coupled to a driving portion for moving the actuator portion up and down,
And a driving shaft of the driving unit is coupled to the supporting flange portion. 3. The method of claim 2,
Wherein the opening and closing member is coupled to the rotary shaft of the actuator unit so as to block the discharge pipe when the impeller is drawn into the tank unit and to open the discharge pipe when the impeller is drawn out of the tank unit. Conveying device. 3. The method of claim 2,
Wherein a sealing member is coupled between the impeller portion and the rotating shaft so as to prevent the stirring material from flowing into the actuator portion between the impeller portion and the rotating shaft. delete 3. The method of claim 2,
The impeller portion
Wherein a sloped wing portion is formed at a predetermined interval in the circumferential direction at a central portion of the base portion and has a predetermined angle with respect to the radial direction. The method according to claim 1,
Wherein,
The measured temperature data measured from the temperature sensor provided in the tank portion after the actuator portion is operated, and the operation time data for the operation time of the actuator portion is calculated,
Comparing the measured temperature data and the operating time data with preset reference temperature data and reference time data and if the measured temperature data matches the reference temperature data and the operating time data does not match the reference time data,
Wherein the actuator unit is operated again after a predetermined time after stopping the actuator unit. The method according to claim 1,
Wherein,
The measured pressure data is transmitted from the pressure sensor provided in the tank portion after the actuator portion is operated, and the measured pressure data is compared with predetermined reference pressure data to determine whether the measured pressure data matches the reference pressure data Wherein the rotation speed of the rotating shaft of the actuator unit is decelerated for a predetermined time.

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