Agitation device and agitation method

Abstract

To provide an agitation device and an agitation method where agitation state in an agitation vessel can be sufficiently visible and material charge and agitation vessel washing can be easily performed.SOLUTION: An agitation device comprises: a window part 11 at least visual inside at a side surface; a substantially cylindrical agitation vessel 10 with an open top surface; a revolving or rotating agitation blade installed inside from an adhesion part at one surface of a lid part 20; a material charge part 21 at the other surface of the lid part; and a drive part 22 to elevate the agitation vessel at an upper limit position, an intermediate position and a lower limit position. The adhesion part of the lid part adheres to the side wall upper surface of the agitation vessel at least at the upper limit position and the intermediate position and the lid part and the agitation vessel are separated at the lower limit position and the top surface of the agitation vessel is open.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an agitation device and a stirring method for agitating a liquid and a liquid, a liquid and a liquid containing a solid, or a liquid containing a solid and a liquid containing a solid. [Background technology]

[0002] Agitators are used to atomize and mix liquids or mixtures of liquids and solids in cosmetics, food, chemicals, or pharmaceuticals. Agitators are composed of a roughly cylindrical mixing vessel in which a rotating blade attached to a rotating shaft rotates to mix the materials, and a drive unit for rotating the rotating shaft.

[0003] Since the degree of mixing varies depending on the material being mixed and the time, it is desirable to be able to check the degree to which mixing is progressing within the mixing tank.

[0004] Patent Document 1 describes a configuration in which the inside of a stirring vessel can be observed through a viewing window provided in the lid of the stirring vessel. [Prior art documents] [Patent documents]

[0005] Patent Document 1: Patent No. 5264635 Summary of the Invention [Problem to be solved by the invention]

[0006] However, there is a problem in that it is difficult to fully check the inside of the mixing tank all the way to the bottom through the sight hole provided in the lid on the top of the mixing tank described in Patent Document 1. To address this, for example, providing a sight hole on the side of the mixing tank would make it easier to check the inside of the mixing tank, but in that case, there is a problem in that the material inlet provided on the top of the mixing tank is above eye level, making it difficult to add materials.

[0007] An object of the present invention is to solve the above problems, to enable sufficient visual confirmation of the mixing status inside a mixing tank, and to facilitate the addition of materials and cleaning of the mixing tank. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides a stirring device for stirring liquids and liquids, liquids and liquids containing solids, or liquids containing solids and liquids containing solids, comprising: a substantially cylindrical mixing vessel having a window portion on at least a side surface through which the inside can be viewed and an open top surface; A lid having a contact portion on one surface thereof that can be in close contact with an upper surface of a side wall of the stirring tank; A rotating or rotating stirring blade provided on the inner side of the contact portion on the one surface of the lid portion; A material input portion provided on the other surface of the lid portion; A drive unit that raises and lowers the stirring tank to an upper limit position, an intermediate position, and a lower limit position, The present invention provides a stirring device characterized in that, at least at the upper limit position and the intermediate position, the contact portion of the lid part contacts the upper surface of the side wall of the stirring tank, and at the lower limit position, the lid part and the stirring tank are separated and the top surface of the stirring tank is open.

[0009] With this configuration, a window through which the interior can be seen is provided on at least the side of the mixing tank; at the upper limit position, which is close to the operator's line of sight, the mixing condition inside the mixing tank can be fully seen, while at the intermediate position it is easy for the operator to add material to the material input section, and at the lower limit position, the lid can be separated so that the mixing tank can be easily cleaned.

[0010] The stirring device may be configured so that the other surface side of the lid portion is provided with a rotary drive unit that rotates or turns the stirring blade, and the stirring tank is raised from the lower limit position to the intermediate position, thereby storing the stirring blade within the stirring tank.

[0011] With this configuration, the other surface side of the lid is provided with a rotary drive unit that rotates or turns the agitator blade, so that the agitator blade can be rotated or turned with a simple configuration. Also, since the agitator blade is not present in the agitator tank at the lower limit position and is exposed, it is easy to clean the inside of the agitator tank and the agitator blade, and since the agitator blade is stored in the agitator tank at the intermediate position, it is possible to rotate or turn the agitator blade for agitation.

[0012] The stirring device may be configured so that as the stirring tank rises from the intermediate position to the upper limit position, the lid portion adheres to the upper surface of the side wall of the stirring tank, and the lid portion and the rotation drive unit rise together with the stirring tank.

[0013] With this configuration, both the lid portion and the rotary drive portion rise to the upper limit position, so that the stirring blade can be rotated or turned both at the upper limit position and during the rise from the intermediate position to the upper limit position.

[0014] The stirring device may be configured so that as the stirring tank descends from the upper limit position to the intermediate position, the lid portion adheres to the upper surface of the side wall of the stirring tank, and the lid portion and the rotation drive unit descend together with the stirring tank.

[0015] With this configuration, the stirring blades can be rotated or turned even while descending from the upper limit position to the intermediate position while performing the stirring operation in the stirring tank, and material can be easily added at the intermediate position.

[0016] The stirring device may be configured to include a lid lowering prohibition section that prohibits the lid from lowering when the stirring tank is lowered from the upper limit position to the intermediate position.

[0017] With this configuration, by lowering the mixing tank to an intermediate position while keeping the lid at the upper limit position, the mixing blades on one side of the lid become exposed, allowing maintenance such as cleaning and inspection of the mixing blades to be performed at a high position, at eye level of the operator.

[0018] The stirring device may be configured such that, when the stirring tank is in a lower limit position, the stirring tank can be tilted at least sideways.

[0019] This configuration makes it easier to discharge materials from the mixing tank when it is in the lowermost position and to clean the inside of the mixing tank.

[0020] The stirring device may be configured such that the inside of the stirring vessel can be vacuumed when the stirring vessel is at a position between an upper limit position and an intermediate position.

[0021] This configuration makes it easier to stir and emulsify some materials.

[0022] The stirring device may be configured to include a display and operation unit that is adjustable in at least the vertical angle or height depending on whether the stirring tank is in the upper limit position, the intermediate position, or the lower limit position.

[0023] With this configuration, the display operation unit can be easily viewed and operated regardless of whether the stirring tank is in the upper limit position, the intermediate position, or the lower limit position.

[0024] In addition, in order to solve the above-mentioned problems, the present invention provides a mixing method in a mixing device equipped with a mixing tank for mixing liquids with each other, a liquid with a liquid containing a solid, or a liquid containing a solid with a liquid containing a solid, wherein at least a side surface of the mixing tank has a visible window portion, and the mixing tank can be raised and lowered to an upper limit position where an operator can view the inside of the mixing tank through the window portion, an intermediate position where an operator can add materials to the mixing tank, and a lower limit position where the top surface of the mixing tank can be opened and tilted sideways, the mixing method comprising: a material feeding step of positioning the mixing tank at the intermediate position and feeding materials into the material feeding section; a mixing step of raising the mixing tank to the upper limit position and mixing; and a cleaning step of lowering the mixing tank to the lower limit position and cleaning the inside of the mixing tank.

[0025] With this configuration, a window through which the interior can be seen is provided on at least the side of the mixing tank, and at the upper limit position close to the operator's line of sight, the mixing condition inside the mixing tank can be fully seen, while at the intermediate position it is easy for the operator to add material to the material input section, and at the lower limit position the lid and mixing blades are separated, allowing the mixing tank to be easily cleaned.

[0026] The method may further include a middle position stirring step of positioning the stirring tank at a middle position and stirring the mixture before or after the stirring step.

[0027] With this configuration, the intermediate position stirring step can be carried out without waiting for the container to rise to the upper limit position or even after the container has descended from the upper limit position, allowing for efficient operation. Effect of the Invention

[0028] The stirring device and stirring method of the present invention allow the stirring status inside the stirring tank to be fully visually observed at the upper limit position, materials can be added at the intermediate position, and the inside of the stirring tank can be cleaned at the lower limit position. [Brief description of the drawings]

[0029] [Figure 1] FIG. 2 is a diagram showing the stirring vessel of the stirring device in the first embodiment of the present invention at the upper limit position. [Diagram 2] FIG. 2 is a diagram showing the stirring vessel of the stirring device in the first embodiment of the present invention in an intermediate position. [Diagram 3] FIG. 2 is a diagram showing the stirring vessel of the stirring device in the first embodiment of the present invention at the lower limit position. [Figure 4] FIG. 1 is a diagram showing a state in which an agitation tank of the agitation device in Example 1 of the present invention is overturned at a lower limit position. [Diagram 5] FIG. 2 is a diagram illustrating a display on a display operation unit of the stirring device in the first embodiment of the present invention. [Figure 6] FIG. 2 is a diagram illustrating an agitation vessel holder of the agitation device according to the first embodiment of the present invention. [Figure 7] FIG. 4 is a diagram illustrating a middle position stopper of the agitation device in the first embodiment of the present invention. [Figure 8] FIG. 4 is a diagram illustrating an upper limit position stopper of the agitation device in the first embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0030] The stirring device of the first embodiment of the present invention will be described with reference to Figs. 1 to 8. Fig. 1 is a diagram showing the stirring tank of the stirring device in the first embodiment of the present invention in the upper limit position. Fig. 2 is a diagram showing the stirring tank of the stirring device in the first embodiment of the present invention in the intermediate position. Fig. 3 is a diagram showing the stirring tank of the stirring device in the first embodiment of the present invention in the lower limit position. Fig. 4 is a diagram showing the stirring tank of the stirring device in the first embodiment of the present invention turned over at the lower limit position. Fig. 5 is a diagram explaining the display of the display operation unit of the stirring device in the first embodiment of the present invention. Fig. 6 is a diagram explaining the stirring tank holding unit of the stirring device in the first embodiment of the present invention. Note that the stirring blades are omitted in Fig. 6. Fig. 7 is a diagram explaining the intermediate position stopper of the stirring device in the first embodiment of the present invention. Fig. 8 is a diagram explaining the upper limit position stopper of the stirring device in the first embodiment of the present invention.

[0031] The stirring device 100 in the first embodiment is equipped with a substantially cylindrical stirring tank 10 having a window portion 11 on the side and bottom surfaces through which the inside can be seen and an open top surface, a substantially circular lid portion 20 having a contact portion (not shown) on one surface that can be in contact with the upper surface of the side wall of the stirring tank 10, a rotating or rotating stirring blade 23 provided inside the contact portion on one surface of the lid portion 20, a material input portion 21 on the other surface of the lid portion 20, and a drive portion (not shown) that raises and lowers the stirring tank 10 to an upper limit position, an intermediate position, and a lower limit position. In the first embodiment, the material stirred by the stirring blade in the stirring tank 10 is discharged into a tank or the like by tilting the stirring tank 10 sideways at the lower limit position as described later, but it may be guided to a predetermined tank through a hose (not shown) provided at the bottom of the stirring tank 10.

[0032] The stirred tank 10 in Example 1 is made of a generally cylindrical glass with an open top, and has a structure in which the back surface and part of the bottom surface are supported by protective metal. Therefore, most of the front surface and bottom surface of the outer surface of the stirred tank 10 that are not protected by protective metal function as a window portion 11. The glass of the stirred tank 10 is made of double glass, and hot water can be poured between the glass to increase or maintain the temperature inside the stirred tank 10, and cold water can be poured between the glass to decrease or maintain the temperature inside the stirred tank 10.

[0033] In Example 1, the window portion 11 is provided on the side and bottom surfaces of the stirring tank 10, but this is not necessarily limited to this and can be modified as appropriate. For example, the window portion 11 may be provided on the side and top surfaces, or may be provided on at least the side surfaces. In Example 1, the stirring tank 10 is made of approximately cylindrical glass with an open top, but this is not necessarily limited to this and can be modified as appropriate. For example, the stirring tank 10 may be made of approximately polygonal prism-shaped glass with an open top.

[0034] In addition, from the upper limit position to the intermediate position, the lid 20 is in close contact with the agitation tank 10, so the agitation blades 23 can be rotated or turned to agitate the inside of the agitation tank 10, and a vacuum can be drawn inside the agitation tank 10. Therefore, depending on the material to be agitated, it can be agitated efficiently.

[0035] In Example 1, the lid part 20 is configured to be in close contact with the stirred tank 10 from the upper limit position to the intermediate position, but this is not necessarily limited to this and can be modified as appropriate. For example, the lid part 20 may be configured to be in close contact with the stirred tank 10 only at the upper limit position and the intermediate position, or the close contact part of the lid part 20 may be configured to be in close contact with the upper surface of the side wall of the stirred tank 10 at least at the upper limit position and the intermediate position.

[0036] The lid 20 has a contact portion made of a rubber packing provided around the entire periphery of one surface (the surface that contacts the top surface of the agitation tank 10) of the lid 20 so that the lid 20 can be closely fitted to the upper surface of the side wall of the agitation tank 10. From the upper limit position to the intermediate position, the upper surface of the side wall of the agitation tank 10 is closely fitted to the contact portion of the lid 20, and the agitation blade 23 provided on one surface of the lid 20 (the surface that contacts the top surface of the agitation tank 10) rotates or turns within the agitation tank 10 to agitate the charged materials.

[0037] A rotation drive unit 22 that rotates or turns the stirring blade 23 is provided on the other surface of the lid unit 20. The rotation drive unit 22 moves up and down integrally with the lid unit 20 as described below.

[0038] The agitation tank 10 is held by the agitation tank holder 50 (see FIG. 6), and can be raised and lowered along the rail 40, which is fixed to the rail holder 43 and extends up and down, by driving a drive unit consisting of a motor and a trapezoidal screw (not shown). The worker H can raise and lower the agitation tank 10 to the upper limit position by touching a touch panel labeled "upper limit position" on the display operation unit 30. Similarly, the agitation tank 10 can be raised and lowered to the middle position by touching "middle position". Furthermore, the agitation tank 10 can be raised and lowered to the lower limit position by touching "lower limit position". The position of the top surface of the agitation tank 10 shown in FIG. 1 is the upper limit position set at 1533 mm from the floor surface, and is a position where the worker H can visually check the inside of the agitation tank 10 through the window 11 to check the agitation state. In addition, at this upper limit position, the agitation state in the agitation tank 10 can be checked from the window 11 at the bottom of the agitation tank 10.

[0039] In Example 1, the upper limit position is the distance from the floor surface to the top surface of the mixing tank 10 of 1533 mm, but this is not necessarily limited to this and can be changed as appropriate. For example, it may be 1534 mm or more or 1532 mm or less, and it may be set at a position where the operator H can easily view the inside of the mixing tank 10 through the window 11. To change the upper limit position, the position of the upper limit position stopper 42 (see FIG. 8) may be adjusted, as described later.

[0040] Here, the display operation unit 30 can change at least the angle in the vertical direction so that the display is easy to see and operation is facilitated regardless of whether the mixing tank 10 is in the upper limit position, the intermediate position, or the lower limit position. For example, the display operation surface of the display operation unit 30 can be vertical when the mixing tank 10 is in the upper limit position, the display operation surface of the display operation unit 30 can be oriented slightly downward from the vertical when the mixing tank 10 is in the intermediate position, and the display operation surface of the display operation unit 30 can be oriented significantly downward from the vertical when the mixing tank 10 is in the lower limit position. This makes it possible to make the display easy to see and operation easy regardless of whether the mixing tank 10 is in the upper limit position, the intermediate position, or the lower limit position.

[0041] In addition to the vertical angle adjustment, the left-right angle adjustment may be possible. This makes the display easier to see and the operation easier. To freely adjust the vertical and left-right angles, a known angle adjustment tool or the like can be used.

[0042] In the first embodiment, the angle of the display operation surface of the display operation unit 30 in the vertical direction is changeable, but this is not necessarily limited to this and can be changed as appropriate. For example, the display operation panel 30 may be made movable up and down.

[0043] The position of the top surface of the mixing tank 10 shown in Fig. 2 is an intermediate position set at 962 mm from the floor surface. This intermediate position is set at a position where operator H can easily input materials into the material input section 21. Note that the inside of the mixing tank 10 may be evacuated. In this case, after inputting materials into the hopper of the material input section 21, the cock is turned to open the door to the inside of the mixing tank 10, and the materials are drawn in by the vacuum. After this, in order to maintain the vacuum state, the cock is turned in the opposite direction to close the door to the inside of the mixing tank 10, and the evacuated state of the mixing tank 10 is maintained.

[0044] In Example 1, the distance from the floor surface to the top surface of the mixing tank 10 at the intermediate position was set to 962 mm, but this is not necessarily limited to this and can be changed as appropriate. For example, it may be 963 mm or more or 961 mm or less, and it may be set at a position that allows the operator H to easily input material into the material input section 21.

[0045] The position of the top of the agitation tank 10 shown in Fig. 3 is the lowest position set at 622 mm from the floor. At this lowest position, the top of the agitation tank 10 is open, allowing the inside of the agitation tank 10 to be visually observed. In other words, the lid part 20, together with the drive part 22, is held in the middle position by the middle position stopper 41 (see Fig. 7) and does not descend to the lowest position. As a result, the lid part 20 is released from its tight contact with the top of the agitation tank 10, and the top is opened.

[0046] In Example 1, the lower limit position is set to 622 mm, which is the distance from the floor surface to the top surface of the mixing tank 10, but this is not necessarily limited to this and can be changed as appropriate. For example, it may be set to 623 mm or more or 621 mm or less, as long as it is set at a position where the operator H can easily visually inspect and clean the inside of the mixing tank 10.

[0047] 4, the agitation tank 10 can be tilted sideways at the lowest position, so that the inside of the agitation tank 10 can be washed and debris can be removed. Also, washing water can be poured into the agitation tank 10 for washing.

[0048] When the mixing vessel 10 is raised from the lower limit position to the intermediate position, By touching the area marked "Intermediate position" (see FIG. 5) on the touch panel, the mixing vessel 10 rises and reaches the intermediate position. It can then be stopped temporarily at the intermediate position. At this time, the top surface of the mixing vessel 10 comes into contact with and adheres to a contact portion on one surface of the lid portion 20. Even in this intermediate position, the mixing blades are stored inside the mixing vessel 10, so mixing can be performed by rotating or pivoting. It is also possible to draw a vacuum.

[0049] When the agitation tank 10 is raised from the intermediate position to the upper limit position, the agitation tank 10 rises to the upper limit position by touching the area marked "upper limit position" (see FIG. 5) on the touch panel of the display operation unit 30. At this time, as the agitation tank 10 rises, it comes into close contact with the lid unit 20, and the agitation tank holder 50 pushes up the rotation drive unit holder 60 holding the lid unit 20 and the rotation drive unit 22, so that the agitation tank 10, the lid unit 20, and the rotation drive unit 22 rise together to the upper limit position (see FIG. 7). In other words, it is only the agitation tank holder 50 holding the agitation tank 10 that is driven by the drive unit, and the rotation drive unit holder 60 holding the lid unit 20 and the rotation drive unit 22 is pushed up by the agitation tank holder 50 holding the agitation tank 10.

[0050] Next, the positioning of the lid part 20 and the rotary drive part 22 at the upper limit position and the intermediate position will be described in detail with reference to Figs. 6 to 8. In Fig. 6, the illustration of the agitation blade part 23 is omitted. Here, Figs. 7 and 8 are views seen from the rear side. As described above, it is the agitation tank holder 50 that holds the agitation tank 10 that is raised and lowered by the drive part consisting of a trapezoidal screw and a motor. In this way, the agitation tank 10 held by the agitation tank holder 50 can be raised and lowered. In addition, the lid part 20 and the rotary drive part 22 are held by the rotary drive part holder 60.

[0051] In addition, when the mixing tank 10 and the mixing tank holding part 50 are in the intermediate position and the lowermost position, the rotation drive unit holding part 60 stops at the intermediate position as the intermediate position stopper block 61 at the bottom of the rotation drive unit holding part 60 comes into contact with the intermediate position stopper 41 fixed to the rail holding part 43, and the rotation drive unit holding part 60 cannot descend any further.

[0052] When the mixing tank holder 50 rises from the lower limit position to the intermediate position, the push-up portion 51 of the mixing tank holder 50 pushes up the push-up portion corresponding block 63 of the rotation drive unit holder 60 a little. Then, the upper surface of the side wall of the mixing tank 10 comes into contact with the contact portion of the lid unit 20. Next, when the mixing tank holder 50 rises from the intermediate position to the upper limit position, the push-up portion 51 of the mixing tank holder 50 pushes up the push-up portion corresponding block 63 of the rotation drive unit holder 60, so that the mixing tank 10, the lid unit 20, and the rotation drive unit 22 rise together. When the mixing tank 10 rises to the upper limit position, the upper limit position stopper block 62 fixed to the rotation drive unit holder 60 comes into contact with the upper limit stopper 42 and stops. Then, the mixing tank 10 cannot rise any further.

[0053] When the mixing tank holder 50 descends from the upper limit position, the mixing tank 10 and the lid 20 remain in close contact with each other, and the mixing tank 10 held by the mixing tank holder 50 also begins to descend. In other words, the rotation drive unit holder 60, whose pushing-up force of the mixing tank holder 50 has been released, descends together with the mixing tank holder 50, and at the same time, the lid 10 and the rotation drive unit 22 also descend together. When the mixing tank holder 50 descends to the intermediate position and stops, the intermediate position stopper block 61 fixed to the rotation drive unit holder 60 comes into contact with the intermediate position stopper 41 supported by the rail holder 43, and it cannot descend any further.

[0054] When the stirring tank holder 50 descends further from the intermediate position, the contact between the lid part 20 and the upper surface of the side wall of the stirring tank 10 is released, and the lid part 20 and the rotary drive part 22 remain in the intermediate position, while only the stirring tank 10 and the stirring tank holder 50 descend to the lowest position, thereby releasing the contact between the stirring tank 10 and the lid part 20. When the stirring tank 10 descends to the lowest position and is separated from the lid part 20, the inside of the stirring tank 10 can be easily cleaned. Furthermore, the stirring blade 23 is exposed from the stirring tank 10, so that the stirring blade 23 can also be easily cleaned.

[0055] Thus, in Example 1, a mixing device for mixing liquids with liquids, liquids with liquids containing solids, or liquids containing solids with liquids containing solids, comprises: a substantially cylindrical mixing tank having a window portion on at least a side surface through which the inside can be viewed and an open top surface; a lid portion having a contact portion on one surface that can come into contact with an upper surface of a side wall of the mixing tank; a rotating or pivoting mixing blade provided inside the contact portion on the one surface of the lid portion; a material input portion on the other surface of the lid portion; and a drive portion for raising and lowering the mixing tank to an upper limit position, an intermediate position, and a lower limit position, wherein at least at the upper limit position and the intermediate position, the contact portion of the lid portion comes into contact with the upper surface of the side wall of the mixing tank, and at the lower limit position, the lid portion and the mixing tank are separated and the top surface of the mixing tank is open. This mixing device allows the mixing status in the mixing tank to be fully viewed, and makes it easy to input materials and clean the mixing tank.

[0056] Moreover, in Example 1, there is provided a mixing method in a mixing device equipped with a mixing tank for mixing liquids with each other, liquids with each other, or liquids with each other that contain solids and liquids with each other that contain solids, wherein at least a side surface of the mixing tank has a visible window portion, and the mixing tank can be raised and lowered to an upper limit position where an operator can view the inside of the mixing tank through the window portion, an intermediate position where an operator can add materials to the mixing tank, and a lower limit position where the top surface of the mixing tank can be opened and tilted sideways, and the mixing method is characterized by comprising: a material input process of positioning the mixing tank at the intermediate position and adding materials to the material input section; a mixing process of raising the mixing tank to the upper limit position and mixing; and a cleaning process of lowering the mixing tank to the lower limit position and cleaning the inside of the mixing tank. This mixing method allows the mixing status inside the mixing tank to be fully visible, and makes it easy to add materials and clean the mixing tank. EXAMPLES

[0057] Example 2 of the present invention differs from Example 1 in that it is provided with a lid descent prevention part that prevents the lid from descending when the stirring tank is lowered from the upper limit position.

[0058] In the second embodiment, rail holding part 43 is provided with a lid lowering prevention part that can be activated when rotation drive part holding part 60 rises to the upper limit position. This lid lowering prevention part is an electrically operated slide pin, and by inserting it into a slide pin insertion hole provided in rotation drive part holding part 60, rotation drive part holding part 60 can remain at the upper limit position even if mixing vessel holding part 50 falls to the intermediate position.

[0059] In the second embodiment, the cover lowering prevention part is configured with an electric slide pin, but this is not necessarily limited to this and can be changed as appropriate. For example, it may be configured with a manual slide pin, or it may be configured with a hook that fixes the rotation drive part holding part 60 from above so that it cannot move.

[0060] As a result, by lowering the stirring tank holding part 50 holding the stirring tank to an intermediate position while keeping the rotation drive unit holding part 60 holding the lid part at the upper limit position, the stirring blade 23 on one side of the lid part becomes exposed, and maintenance such as cleaning and inspection of the stirring blade 23 can be performed at a high position, which is at eye level of the worker H.

[0061] Thus, in Example 2, a lid descent prevention section is provided that prevents the lid from descending when the mixing tank is lowered from the upper limit position to the intermediate position, so that maintenance such as cleaning and inspection of the mixing blades can be performed at a high position, which is at eye level of the operator. [Industrial Applicability]

[0062] The stirring tank cleaning device and the stirring tank cleaning method of the present invention can be widely applied to the field of cleaning of stirring devices that stir liquids or mixtures of liquids and solids as raw materials. [Explanation of symbols]

[0063] 10: Mixing tank 11: Window section 20: Lid section 21: Material input section 22: Rotation drive section 23: Mixing blade 30: Display operation section 40: Rail 41: Intermediate position stopper 42: Upper limit position stopper 43: Rail holding section 50: Mixing tank holding section 51: Push-up section 60: Rotation drive section holding section 61: Intermediate position stopper block 62: Upper limit position stopper block 63: Push-up section corresponding block 100: Mixing device

Claims

1. A stirring device for stirring a liquid and a liquid, a liquid and a liquid containing a solid, or a liquid containing a solid and a liquid containing a solid, comprising: a substantially cylindrical mixing vessel having a window portion on at least a side surface through which the inside can be viewed and an open top surface; A lid having a contact portion on one surface thereof that can be in close contact with an upper surface of a side wall of the stirring tank; A rotating or rotating stirring blade provided on the inner side of the contact portion on the one surface of the lid portion; A material input portion provided on the other surface of the lid portion; A drive unit that raises and lowers the stirring tank to an upper limit position, an intermediate position, and a lower limit position, A stirring device characterized in that, at least at the upper limit position, the contact portion of the lid portion contacts the upper surface of the side wall of the stirring tank, and, at the lower limit position, the lid portion and the stirring tank are separated and the top surface of the stirring tank is open.

2. The stirring device described in claim 1, characterized in that the other surface side of the lid portion is provided with a rotary drive unit that rotates or pivots the stirring blade, and the stirring blade is stored in the stirring tank when the stirring tank rises from the lower limit position to the intermediate position.

3. The stirring device according to claim 1, characterized in that as the stirring tank rises from the intermediate position to the upper limit position, the lid portion comes into close contact with the upper surface of the side wall of the stirring tank, and the lid portion and the rotation drive portion rise together with the stirring tank.

4. The stirring device according to claim 1, characterized in that as the stirring tank descends from the upper limit position to the intermediate position, the lid portion comes into close contact with the upper surface of the side wall of the stirring tank, and the lid portion and the rotation drive portion descend together with the stirring tank.

5. 2. The stirring device according to claim 1, further comprising a lid lowering prevention part that prevents the lid from lowering when the stirring tank is lowered from the upper limit position to the intermediate position.

6. 2. The stirring device according to claim 1, wherein the stirring tank is capable of being tilted at least sideways when the stirring tank is in the lower limit position.

7. 5. The stirring device according to claim 1, wherein the inside of the stirring vessel can be evacuated to a vacuum when the stirring vessel is in a position between the upper limit position and the intermediate position.

8. The stirring device according to any one of claims 1 to 4, characterized in that it is provided with a display operation unit whose at least vertical angle or height can be adjusted according to whether the stirring tank is in the upper limit position, the intermediate position, or the lower limit position.

9. A stirring device for stirring a liquid and a liquid, a liquid and a liquid containing a solid, or a liquid containing a solid and a liquid containing a solid, comprising: a substantially cylindrical mixing vessel having a window portion on at least a side surface through which the inside can be viewed and an open top surface; A lid having a contact portion on one surface thereof that can be in close contact with an upper surface of a side wall of the stirring tank; A rotating or rotating stirring blade provided on the inner side of the contact portion on the one surface of the lid portion; A material input portion provided on the other surface of the lid portion; A drive unit that raises and lowers the stirring tank to an upper limit position, an intermediate position, and a lower limit position; a display operation unit that is adjustable in at least a vertical angle or height in accordance with whether the stirring tank is in the upper limit position, the intermediate position, or the lower limit position; A stirring device comprising:

10. 1. A method for stirring in a stirring apparatus having a stirring tank for stirring a liquid and a liquid, a liquid and a liquid containing a solid, or a liquid containing a solid and a liquid containing a solid, comprising the steps of: The stirring tank has a visible window at least on a side thereof, and the stirring tank can be raised and lowered to an upper limit position where an operator can view the inside of the stirring tank through the window, an intermediate position where materials are added to the stirring tank, and a lower limit position where the top surface of the stirring tank is opened and the stirring tank can be tilted sideways, a material charging step of positioning the mixing tank at an intermediate position and charging a material into a material charging section; a stirring step of raising the stirring tank to an upper limit position and stirring the stirring tank; a cleaning step of lowering the stirring tank to a lower limit position and cleaning the inside of the stirring tank; A stirring method comprising:

11. The stirring method according to claim 10, further comprising an intermediate position stirring step of positioning the stirring tank at an intermediate position and stirring the mixture before or after the stirring step.

Images