JPS63200826A - Continuous powder kneader mixer - Google Patents

Abstract

PURPOSE:To continuously produce a kneaded powder in optimum state, by connecting agitating blades in plural mixers combined in multi-stage with driving means of different revolving speed. CONSTITUTION:Plural kinds of raw materials 2 are charged with constant amount rate to an agitator 10 to be preliminarily mixed by agitating blades 15. Then, the materials 2 are sent into a high speed mixer 20 through a valve 13 by an air flow 5, and is kneaded by revolving blades 25 of high speed in the mixer. After a specified lapse of time, the raw materials of kneaded state are transferred to a mixer 30 of middle speed, to a mixer 40 of low speed, and to a mixer 50 of extralow speed in order, to be kneaded by blades 35, 45, 55 respectively of different speed of each process, and is finally discharged by the screw 61 of a screw feeder 60 to be made into a product. In this case, the transfer of the raw materials 2 between the processes is carried out by the air flow 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention is a method for producing powder products by kneading low-viscosity powder raw materials such as powder while continuously stirring them under mixing conditions that differ in each step. Concerning improvements to mixers.

Prior Art Generally, various raw materials in the form of low viscosity powder are made into products through a kneading process using a plurality of mixers. In this process, the low-viscosity powdered raw material is stirred and kneaded under different conditions for each mixer. Therefore, each mixer must have rotating blades with different rotation speeds.

Generally, each rotating blade is driven by a corresponding drive means, and these drive means are attached near the casing of each mixer. For this reason, in conventional devices, the drive part is structurally complex, its disassembly and cleaning are cumbersome, and it is difficult to respond flexibly to changes in crosstalk conditions depending on the type of raw material.

On the other hand, in the case of a flash mixer, for example, when continuous mixing is required, a transfer means such as a screw conveyor is required between each mixer. For this reason, the entire device becomes complicated and large, and special consideration must be given to mixing conditions, especially temperature changes, during the transfer process of raw materials.Accordingly, an object of the present invention is to The purpose of this invention is to streamline transportation, enable easy disassembly of each mixer, and simplify the structure of the drive shaft portion by arranging the drive shaft portion at the center of rotation of the rotary blade.

Solution to the Invention Therefore, the present invention combines a plurality of mixers in a multistage manner, and supports their rotary blades rotatably on the same axis,
Connecting those drive shafts to corresponding drive means,
The casing of each mixer is provided with a feed port with a squeezer in communication with each other, so that the low-viscosity powdered raw material in each casing is transferred to the next step by air flow for each mixer.

In a mixer with this type of structure, the transfer between each process can be controlled by air flow, and the mixer casing part and the drive shaft part of the rotating blades can be easily separated, making the interior easy to clean. Moreover, since the drive shaft is housed in the center of the multi-stage casing, the structure can be simplified. In addition, in connection with the ease of decomposition, it is also easy to change the number of stages in each mixer according to changes in powder crosstalk conditions, and even for different types of raw materials.
It becomes easy to set crosstalk conditions for each mixing process.

Embodiment of the Invention First, FIG. 1 shows a powder continuous kneading mixer 1 at high speed, medium speed,
An example of a four-stage system configuration of low speed and very low speed is shown.

The plurality of types of raw materials 2 have low viscosity and are in powder form,
The vibrating feeder 30 is sequentially charged into the charging hopper 3a, fed by the vibrating feeder 3, weighed by the weighing device 4, and sent in fixed amounts through the shuffled supply port 4a to the agitator lO, where it is preliminarily mixed by the rotating blade 15. is,
Thereafter, the shuttered supply port 4a and the filter 14 are closed, and the pulp 13 is fed into the high-speed mixer 20 by the air flow 5 by opening the shuttered supply port 12. At the time of this transfer, the shutter 21 and pulp 23 of the feeding port 22 are closed, and the filter 24 is set in an open state. Thereafter, the mixer 20 rotates the internal rotary blades 25 at high speed to knead the raw materials 2 for a certain period of time based on the mixing conditions.

After a certain period of time has elapsed, the mixed raw material 2 is sequentially transferred to a medium-speed mixer 30, a low-speed mixer 40, and a very low-speed mixer 50, and the rotating blades 3 with different rotational speeds for each process are transferred.
5, 45, and 55, and finally discharged by the screw 61 of the screw feeder 60 to produce a product.

In each of these steps, the raw material 2 is transferred from the previous step to the next step by the air flow 5. This air flow 5 is sucked by a blower 7 from an air filter 6 and is passed through a duct 8
After that, each pulp 13.23.33.43.5
3 through an agitator 10 and a mixer 20.3, respectively.
30.40.50 is supplied inside. Note that the means for generating the air flow 5 may be suction means, ie, a suction pump, etc. In order to transport the air flow 5, the mixer 20, 30, 40, 50 is also provided with a shutter 21.
31.41.51. A feed port 22.32.42.52 and a filter 24.34.44.54 are provided, respectively. .

In this series of kneading processes, the high-speed mixer 20
Since the rotary blade 25 is rotated at high speed, the raw material 2 inside the blade 25 is usually kneaded in a heated state accompanied by a temperature rise. In addition, since the medium-speed mixer 30 mixes while rotating the rotary blades 35 at a medium-speed rotation lower than this, the temperature of the raw material 2 finished in the high-speed mixer 20 is kept constant. Kneading is performed at a lower temperature than before while maintaining the temperature at . For this reason, although not shown, a water chamber for passing cooling water is provided on the outer peripheral wall. Further, in the low-speed mixer 40, cooling kneading is performed to lower the temperature of the raw material 2, and in the last very low-speed mixer 50, the raw material 2 is kneaded at room temperature.

Through these processes, the raw material 2 is continuously discharged at a fixed time rate by the screw 61 of the screw feeder 60 as a final kneaded powder product.

In this way, in the continuous powder kneading mixer 1 of the present invention, each mixer 20, 30, 40, 50 has a multistage configuration, so that the rotation speed, kneading temperature, and kneading time can be adjusted to suit the mixing conditions of each process. It is easy to set up and allows continuous production of optimum kneaded powder.

Specific Example of the Invention Next, FIG. 2 shows a specific structure of a powder continuous kneading mixer 1 based on the system configuration shown in FIG.

The casing 16 of the agitator 0, the casing 26 of the mixer 20, the casing 3G of the mixer 30, the casing 46 of the mixer 40, the casing 56 of the mixer 50, and the casing 66 of the screw feeder 60 are stacked vertically on the base 9, respectively. All of the overlapping parts are in the form of stamps. Moreover, the uppermost casing 16 is connected to the other casings 26.3
Similar to 6.46.56.66, it is of the top opening type and fits into the cover 18 in the form of a mark. A drive motor 19 is attached to the cover 18, and its drive shaft 17 moves the rotary blade 15 to the agitator I.
It is supported inside O.

And these casings 16.26.36.4G,
56 bottom shutter 1). The feeding ports 12.22.32.42.52 with 21.31.4I and 51 communicate the interiors of the vertically adjacent mixers 20.30.40.50 and screw feeder 60 with each other. In addition,
These casings 16.26.36.46.56 have valves 13.23.33.43.53, filters 14.
In addition to 24.34.44.54, there are also supply means 71.72.73 for plasticizers, pai goo, fragrances, etc.

The drive shaft 27 of the rotating blade 25 is connected to the other rotating blade 3.
5.45.55 are rotatably fitted one after another concentrically into the hollow drive shafts 37.47.57 of the respective casings 26.36.46.56.
The casing 66 is rotatably supported by an upper bearing 28.38.48.58, and its lower end is connected to a pulley 81.82.83.84 by a rotation prevention means such as a serration. for the bottom and base 9 of or for each pulley 8182
．． 83, the lower bearing 28.38.
It is rotatably supported by 48.58. and,
The rotation of the motor 29.39.49.59 as a driving means is transmitted to the drive shaft 27.37.47.57 at different rotational speeds by a pulley 85.86.87.88 and a timing belt 89.90.9192. be done.

Thus, each casing 16.26.36.
46, 56, and 66 are fitted in the vertical direction according to the mark type, so each mixer 20, 30, 40, 50 can be disassembled sequentially from the top part as necessary, and the relationship with this The rotary vanes 25, 35, 45, 55 can be easily removed from each drive shaft 27, 37, 47, 57 by loosening the attachment screws 93, 94, 95, 96. . Of course, each of the drive shafts 27, 37, 47, 57 can be removed one after another starting from the central portion.

And, this powder continuous kneading mixer 1 is similar to the above,
Each mixer 20, 30, 40, and 50 stirs and kneads the raw material 2 under different mixing conditions and feeds it sequentially to the next step. In this case, Shafter 1). 21.31.4
1.51 actuators, valves 13.23.33.
Each operation part of 43.53 and motor 29.39.49.5
Sequential operations such as 9 are sequentially performed under sequence control by the sequencer of the control device.

Modified Example of the Invention In the above embodiment, a motor is attached to each rotary blade, but the rotational force of these is transmitted from one motor to each drive shaft using gears or the like at different transmission ratios. You can do it like this.

Further, in the above embodiment, the mixers are arranged in the vertical direction, but they may be arranged at an appropriate angle of inclination depending on the viscosity of the material.

Effects of the Invention In the present invention, since the mixer is configured as a multistage type, it is possible to independently set the rotation speed of the rotary blade, kneading temperature, and kneading time as the mixing conditions that match the properties of the powder raw material in each process. , it becomes possible to continuously produce kneaded powder under optimal conditions.

In addition, the casing parts of each mixer are combined vertically in the form of stamps, and the drive shafts are on the same axis, and each rotating blade and drive means are removably combined with this, so each configuration It is easy to disassemble the parts,
Periodic cleaning can be easily performed.

Furthermore, since the number of stages of each mixer can be easily changed as necessary, the number of steps can be easily changed for various raw materials.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of a mixer for continuously kneading powder of the present invention, and FIG. 2 is a sectional view of a specific structure of the mixer. 1. Powder continuous kneading mixer, 2.. Raw material, 3.. Vibration feeder, 4.. Measuring device, 5.. Air flow, lO.. Agitator, 20.. High speed mixer, 21.31.41. 51
...Shutter, 22.32.42.52...Feeding port, 2
5.35.45.55...Rotating blade, 26.36.46
．． 56...Casing, 27.37.47.57...Drive shaft, 28.38.48.58...Bearing, 29.39
．． 49.59...Motor, 30...Medium speed mixer, 40
...Low speed mixer, 50...Very low speed mixer, 60...
screw feeder.

Claims (5)

[Claims] (1) Powder characterized by combining a plurality of mixers to form a multi-stage type, connecting the mixers in series at a feeding port, and connecting the rotating blades in each mixer to drive means with different rotational speeds. Continuous kneading mixer. (2) The continuous powder kneading mixer according to claim 1, characterized in that a plurality of mixers are combined in the vertical direction, and the overlapping portions of their casings have an inro-type fitting structure. (3) The continuous powder kneading mixer according to claim 2, characterized in that each mixer is provided with an air flow generating means for transporting raw materials. (4) Continuous kneading of powder according to claim 2, characterized in that the drive shafts of the respective rotary vanes are arranged on the same axis, and the rotary vanes are detachably connected to each shaft. mixer. (5) A powder according to claim 4, characterized in that a group of pulleys are arranged on the same axis at one end of a plurality of drive shafts on the same axis, and a bearing is interposed between adjacent pulleys. Continuous kneading mixer.