JPH1147573A - Mixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a high performance mixer. SOLUTION: A conical mixing vessel 1 with a perpendicular shaft 2 is provided. The mixing vessel 1 is narrower downward, having at least one rotatable perpendicular mixing shaft 3, and a number of elongated members 4 protrude radially from the mixing shaft 3. Each of the members 4 is provided with a mixing blade 5 at the edge and extends to the proximity of the side wall of the mixing vessel 1. The mixing blades 5 are relatively short and symmetrically against the shaft of the elements 4. The number of revolutions (N) of the mixing shaft 3 ranges from high speed to ultra-high speed, e.g. 100-1,000 rpm, thereby a product to be treated is mixed intensely in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a powder material and / or
Alternatively, the present invention relates to a mixer which is a device for mixing, cooling, heating, drying and / or crushing granular materials. The apparatus comprises a conical mixing vessel, the mixing vessel having a vertical axis, narrowing downwards, at least one vertical mixing axis being rotatable, the mixing axis projecting a number of elements, The outer end extends to near the side wall of the container.

[0002]

BACKGROUND OF THE INVENTION According to U.S. Pat. No. 5,344,232,
Very small medical mixers are known that produce a small amount of osteoclastic agent in an operating room or near it for orthopedic surgery under partial vacuum. The bone graft is used when performing bone surgery, and fixes the prosthesis to the bone, for example, the hip joint. The use time of this bone graft is very limited and is made immediately before use.

The mixer has a manual vertical mixing shaft, which penetrates a flat top lid and has two opposing mixing paddles of different heights. When the number of rotations is small, for example, in the case of 30 to 40 rotations / minute, the liquid monomer is mixed with the solid polymer powder to form a paste under partial vacuum,
This paste is pressed into a cartridge, which is connected to the lower lid of the mixer and ready for use.

[0004]

Although the above is an example of the use of a mixer, it is an object of the present invention to provide a short, powdery, granular and / or pasty material useful in such cases. The purpose is to develop a powerful mixer that can be mixed, cooled, heated, dried and / or crushed.

[0005]

SUMMARY OF THE INVENTION The present invention is an apparatus for mixing, cooling, heating, drying and / or crushing powdery, granular and / or pasty materials, comprising a conical mixing having a vertical axis. A container, wherein the container narrows downwards, at least one vertical mixing axis is rotatable, and a number of elements protrude from the mixing axis gradually longer, the outer end of which extends close to a side wall of the container. And the rotation speed is high to very high, which causes the treated product to undergo a very strong shearing action on both the element and the side wall, and in both the element and the side wall in a very short time, It is intended to provide very strong mixing to the product.

According to the main embodiment of the present invention, the rotation speed of the mixing shaft is 100 to 1,000 rotations / minute.

In a first preferred embodiment of the invention, the elements each comprise at least one mixing paddle at the tip, the tip extending parallel to and near the side wall of the container; The element is rod-shaped and has a large radial dimension (length). In contrast, mixed paddles are plate-shaped and have small radial dimensions (length), limiting rotation beyond a certain angle with respect to the axis of the rod-shaped component.

[0008] In a second preferred embodiment of the invention, the element comprises a blade, at least a part of which is variable in angular position with respect to a vertical axis. Other features and advantages of the invention will become apparent from the following description of a number of embodiments, with reference to the accompanying drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to FIG. 1, the mixer according to the invention comprises a conical mixing vessel 1 having a vertical axis 2, the vessel 1 narrowing downward and at least one vertical mixing axis 3;
Is rotatable. A large number of elements 4 protrude outward from the mixing shaft 3 so as to become gradually longer, and an outer end 5
Extends to the vicinity of the side wall 6 of the container 1.

The upper side of the container 1 is closed by a lid 7. The inside of the lid 7 is substantially elliptical, ensuring strength and guiding the product inward. The product enters the lid 7 along the inside of the side wall 6 upward, moves in the direction of the central part of the lid 7 and descends again below the mixing vessel 1 from the central part, as indicated by the symbol Pd. FIG. 3 shows this flow.

A drive motor 9 is fixed above the lid 7 of the shaft 2 of the central mixing shaft (or mixing screw) 3 by means of a seal and bearing (not shown) relating to the central lid tube stub. The outer drive shaft 10 of the drive motor 9 is connected to the mixing shaft 3. Mixing container 1 with lid 7 that can be lifted freely
Are different types of fast-acting fasteners, for example, a star screw head 1
It is closed in an airtight manner by a screw bolt having a screw 1 and a tightening screw 12, so that in operation the mixing vessel 1 can be evacuated. After loosening the fast-acting fastener, the lid 7 together with its accessories are lifted by lifting means, such as the arm 41 of FIG.
It can be lifted by the double-acting plunger 42, the cylinder 43 and the second arm 44. In this way, the element 4 can be cleaned, replaced or repaired. In addition, the inside of the container 1 can be inspected, the lid 7 can be removed, and the lid can be quickly replaced with another lid together with the attached parts. A scraping blade 13 is fixed to the lower end of the mixing shaft 3 to prevent dead space from being generated at the bottom of the mixing vessel 1.

Further, the eccentric tube stub 14 is attached to the lid 7, and the stub is made openable and closable by the inspection lid 15. This opening and closing is performed by a rotatable arm 16, which can be screwed by using a star screw head 17 of a screw bolt 18 with the upper side log 19 of the stub 14 closed. The lid 7 has an inlet 20.
Is used for the washing and spraying device 21. The cleaning and spraying device 21 is extendable and contractable, and includes a spraying head 22 inside the container 1. Flange 23 on lower side of mixing vessel 1
Is fixed, and the main body of the ball valve 24 is attached to the flange 23. The ball valve 24 includes a ball portion 25.

In the left half of FIG. 1, the mixing vessel 1 is provided with an outer jacket 26, which heats and cools the contents of the product P in the vessel 1. Jacket 26 includes connecting tube bases 28 and 29.

As shown in the right half of FIG. 1, the side wall 6 is a so-called "mold" double-layered wall, which is used after welding and connection at different places. The cooling or heating medium can be circulated again in the formed hollow space. The lid 7 comprises a tube stub 32 for a glass 33.

According to the invention, the mixing shaft 3 comprises a number of elements 4
, And the rotation speed N is high speed to ultra high speed. in this way,
The treated product is subjected to a very strong shearing action by the inside of the side walls 6 and by the elements 4, resulting in very intense mixing with the product P in a very short time. Such mixing can cause a temperature rise, which is counteracted by cooling the side walls 6 of the mixing vessel 1.

According to the main embodiment of the present invention, the rotation speed N of the mixing vessel is 100 to 1,000 rotations / minute.

In a first preferred embodiment of the invention, the elements 4 each comprise one or more mixing paddles 5 at the outer end, the outer ends of which are parallel to the side walls 6 of the container 1 and side walls. Extend to the vicinity of 6. Furthermore, the element 4 is rod-shaped and has a large radial dimension. Further, the paddle 5 has a plate shape and a small radius dimension. In FIG. 1, according to the enlarged portion of the mixing paddle 5 indicated by the leader line, the rotation of the paddle 5 beyond a certain angle A with respect to the axis of the rod-shaped component is limited.

FIG. 2 shows a second preferred embodiment of the present invention in a state where the lid 7 is lifted together with accessories. The lid 7 is suspended by a vertically movable horizontal arm 41 on the head of a hydraulic plunger 42 of a lifting cylinder 43.
3 has a fixed horizontal arm 44 on the upper side, and the mixing vessel 1 is suspended by the arm 44. Further, other hydraulic lifting tools can be applied.

Here, the element 4 comprises blades, the angle B of at least some of these blades with respect to the vertical axis being variable.

In the variant shown on the right side of FIG. 2, the mixing shaft 3 and the blade 4 connected to each other are hollow and have an outlet hole 45 through which gas and / or liquid are passed and guided. I do. In FIG. 2, an enlarged portion of the blade 4 indicated by a lead line shows a state in which the blade 4 is rotatably connected to the mixing shaft 3. The scraper 13 at the lower end of the mixing shaft 3 is visible.

In the variant shown on the left side of FIG.
Is variable and the blade 4 is vertical. Further, the side wall 6 of the mixing vessel 1 is connected to the チ ュ ー ブ tube spiral part 46 and the spiral part 4
Cooling and / or heating fluid passes through 6. The lid 7 has a tube stub 36, which is used as an inlet for the inflow product Pi. At the lower end of the mixing vessel 1, a flat outflow slide 47 with an operating lever 48 for the outflow product Po is attached.

Above the mixing vessel 1, the mixing shaft 3 is connected to a drive motor 9 suspended upside down by a transmission 49, which is fixed to the lid 7 by a raised tube stub 8. The shaft 2 is provided with an inlet 50 for liquid Li. The lid 7 also has an inlet 40 for a low-pressure atomizer 39 for the processing liquid and / or gas. An inlet 34 for a thermometer 35 is provided on the right side of the side wall 6 of the mixing vessel 1.

[Brief description of the drawings]

FIG. 1 shows a partial left side view and a partial right sectional view of a state where a mixing device according to a first embodiment having a rod-shaped component having a mixing paddle at an outer end portion is attached.

FIG. 2 according to a second main embodiment in which the lid is removed and lifted to a height at least above the length of the mixing shaft, the mixing shaft, the mixing element and the scraping blade being detached from the mixing container and visible. FIG. 3 shows a partial left side view and a partial right side view excluding an outer wall of the mixing device.

FIG. 3 is a flow chart of products in a mixer according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mixing container 2 Vertical axis 3 Mixing axis 4 Element 5 Mixing paddle 6 Side wall 7 Lid

Claims (23)

[Claims] 1. A conical mixing vessel (1) having a vertical axis (2), said vessel narrowing downwards, wherein at least one vertical mixing axis (3) is rotatable and said mixing axis (3) is rotatable. 3) has a number of elements that protrude gradually longer,
Mixing, cooling, heating, drying and / or crushing a powdered, granular and / or pasty material (P) whose outer end extends close to the side wall (6) of the container (1). In the apparatus, the mixing shaft (3) comprises a very large number of elements (4), the number of revolutions (N) of which is high to very high, depending on the number of revolutions (N), Side wall (6)
A strong shearing action on the treated material in both cases, and intense mixing in a short time on both the element (4) and the side wall (6). 2. The rotation speed (N) is 100 to 1,000.
2. The mixer according to claim 1, wherein the rotation speed is rotations / minute. 3. Each of said elements (4) comprises at its outer end one or more mixed paddles (5), the outer wall of said paddle being parallel to said side wall (6) and of said side wall (6). The element (4) is rod-shaped and has a large length, and the paddle (5)
3. The device according to claim 1, wherein the paddle has a small length and the rotation of the paddle with respect to the axis of the element is limited beyond a certain angle. The mixer as described. 4. The element according to claim 1, wherein the element comprises a blade, at least a part of which forms a variable angle with respect to a vertical axis. Item 2. The mixer according to Item 1. 5. The scraping blade (13) is attached to the lower end of the mixing shaft (3) to prevent dead space from being created at the bottom of the mixing vessel (1). The mixer according to claim 1 or 2. 6. The upper side of the mixing vessel (1) is closed by a lid (7), and the inside of the lid (7) has a substantially elliptical shape, and the product is moved upward along the side wall (6). Opposite (Pu), it moves toward the center of the lid (7) and descends again from the center into the mixing vessel (1) (P
The mixer according to any one of claims 1 to 5, wherein d) is used. 7. The mixing shaft (3) is directly connected to an outer drive shaft (10) of a drive motor (9), the drive motor (9) being connected to a central tube stub (8) of the lid (7). 7. An electronic device according to claim 1, wherein said device is mounted on an upper portion.
The mixer according to any one of claims 1 to 4. 8. The lid (7) together with its accessories can close the mixing vessel (1) in an airtight manner, so that the mixing vessel (1) can be evacuated. The mixer according to any one of claims 1 to 7, wherein the mixer can be used. 9. The lid (7) is fastened by fast-acting fasteners (11, 12) of the mixing container (1), and after the fast-acting fasteners (11, 12) are loosened, the lid (7) is loosened. Mixer according to any of the preceding claims, characterized in that 7) can be lifted from the mixing container (1) together with its accessories and re-fastened after replacement, processing and / or replacement. 10. The lid (7) is provided with a high-pressure cleaning sprayer (2).
2. The method as claimed in claim 1, further comprising an inlet (20).
The mixer according to any one of claims 9 to 9. 11. The method according to claim 1, wherein the side wall has a double-layered wall and is formed of a so-called “mold” for passing cooling and / or heating fluid. The mixer according to 1. 12. The mixing vessel (1) comprises an outer jacket (26), which heats and / or cools the contents of the product (P) in the vessel (1), Mixer according to any of the preceding claims, characterized in that a connection tube stub (28, 29) is provided at the end of the outer jacket (26). 13. The mixer according to claim 1, wherein a ball valve (24) is attached to a lower end of the mixing vessel (1). 14. The mixer according to claim 1, wherein a flat outflow slide valve (47, 48) is mounted at the lower end of the mixing vessel (1). 15. The mixing shaft (3) comprises a drive motor (9).
The lid (7) has a raised tube stub (8) fixed thereto and a suspension device (49) provided therein, and the motor (9) is suspended upside down by the suspension device (49). The method according to any one of claims 1 to 14, wherein
Mixer according to item. 16. The mixer according to claim 1, wherein the lid (7) comprises an inlet (40) for a low-pressure atomizer (39) for the processing liquid and / or gas. . 17. The mixer as claimed in claim 1, wherein the lid (7) comprises a tube stub (32) for a glass (33). 18. Mixer according to claim 1, wherein the side wall (6) comprises an inlet (34) for a thermometer (35). 19. Mixer according to claim 1, wherein the lid (7) comprises a tube stub (36) for containing the product (P). 20. Mixer according to claim 1, wherein the lid (7) comprises a tube stub (37) for a lamp (38). 21. The device according to claim 1, wherein the lid comprises an inlet of a liquid sprayer.
The mixer according to any one of claims 1 to 4. 22. The lid (7) is suspended by a vertically movable horizontal arm (41) at the head of a plunger (42) of a hydraulic lifting cylinder (43), and the cylinder (43) is suspended.
Mixer according to any of the preceding claims, characterized in that it comprises a fixed horizontal arm (44) on the upper side, said arm (44) suspending said mixing vessel (1). 23. The mixer according to claim 1, wherein the lid is suspended by the vertically movable arm of a mechanical suspension device.