JPH0156737B2 - - Google Patents

Description

[Detailed description of the invention]

(Field of Industrial Application) This invention relates to a continuous whipping device, and belongs to the industrial field of manufacturing, selling, or using whipping devices. (Conventional technology) Conventional continuous whipping devices include pumps,
A device is known in which a gas-liquid dispersion mixer and a stirring device having comb-like stirring blades are successively connected in series via piping (Japanese Patent Publication No. 11250/1982). (Problems to be Solved by the Invention) The known continuous whipping device has a large throughput (large or medium capacity, for example, 250/h or more);
It is recognized that raw materials with restricted properties can produce excellent effects and produce high-quality uniform products continuously, but if the properties of the raw materials exceed the restricted range or the amount of processing is reduced (small-scale, small-lot processing). It was not possible to produce a high-quality product by simply miniaturizing the known structure. (Means for solving the problem) However, the present invention provides a pump, a gas-liquid dispersion mixer,
In addition to sequentially connecting the dashir and static mixer with piping, we also added a stirring shaft inside the dashir, and installed a frame rod made mainly of wire rods of a certain length.
By arranging the blades at different heights and predetermined positions, and by protruding from the shaft rod on the outlet side, we have succeeded in continuously producing uniform, high-quality products regardless of the nature of the liquid or the flow rate. That's what I did. That is, the present invention relates to a device in which a pump, a gas-liquid dispersion mixer, and a dashir are connected in series through piping, in which the dashir has a frame rod made of a wire attached to the shaft rod, and a blade of a predetermined width to the shaft rod near the liquid outlet side. A continuous whipping device is constructed by installing the stirring shaft provided above in a cylindrical tank, and connecting a static mixer to the exit side of the dasher.
In the above, the frame rods are arranged in four directions near the entrance of the dashir, one direction at the center (approximately 3/4 of the length of the shaft rod), and two directions near the exit.At both ends, the frame rods are radial and They are placed at equal angles. In addition, the frame rods are made by, for example, fixing a thin rod parallel to the outer wall of the shaft rod with a plurality of leg rods perpendicular to the rod, and maintaining a distance (for example, 1 mm to 2 mm) between the outer side of the thin rod and the inner wall of the dashir. There is. Also, the blade is 1mm to 2mm thick.
This is a rectangular plate whose long edge parallel to the shaft rod has unequal small gaps between it and the inner wall of the dasher (the gap in the direction of rotation is smaller; see Figure 5). Further, a vertical type gas-liquid dispersion mixer is more effective in preventing uneven distribution of air bubbles. Further, it is desirable that the length of the piping between the pump and the gas-liquid dispersion mixer be several times or more (for example, about 10 times) the diameter of the overrun stabilizing pipe. Further, a meandering pipe is connected to the outlet side of the static mixer to obtain a predetermined back pressure. Next, although conventionally known continuous whipping devices have restrictions on the properties of the raw materials used, the device of the present invention can significantly alleviate these restrictions. This point was confirmed by the following experiment. That is, when various creams shown in Table 1 were used and applied to a conventional continuous whipper, the results shown in Table 2 were obtained.

[Table] * Seizou is an abbreviation for vegetable fat.

[Table] Next, when the continuous whipper of this invention was applied, the results shown in Table 3 were obtained.

[Table] The evaluation criteria in Tables 2 and 3 above were as follows. A certain amount of whipped cream of moderate consistency was placed in a piping bag, and the artificial flowers were squeezed one by one. After the entire amount had been squeezed (approximately 20 to 30 pieces), the roughness of the artificial flowers from the beginning to the end was observed and evaluated. . 5: Good from beginning to end 4: Two or three things are bad at the end 3: About 1/3 of the end is bad 2: About 1/3 of the beginning is good, the remaining 2/3 is bad. 1: Only the first two or three creams are good.As is clear from Tables 2 and 3 above, in the conventional continuous whipper, only cream types D and E could be used, but in the whipper of this invention, cream types A, B, It was possible to use each type of C, D, and E. Especially for C, D, and E, excellent products were produced when the overrun was 80% or 100%.
In this invention, since a static mixer was used in the final stage to apply a suitable back pressure, whipping properties were as good as when a vertical batch mixer was used. When the creams in Table 1 were used and evaluated on a scale of 1 to 5 as described above, the results were as shown in Table 4.

[Table] As mentioned above, good whipping conditions were obtained for creams A, B, and C. (Function of the invention) According to the invention, the gas-liquid dispersion mixer, the dusshear using a shaft rod with a protruding frame rod for stirring, and the static mixer are connected in series through piping. , there is little separation of free fat, and raw materials with widely different properties can be whipped continuously and efficiently. Furthermore, if the gas-liquid dispersion mixer is installed vertically, the flow of the raw material can be made orderly and uneven distribution of air bubbles can be prevented. Furthermore, the necessary back pressure can be generated by means of static mixers and meandering pipes. (Embodiment) Next, the present invention will be described with reference to the embodiment shown in FIGS. 1 to 5. The raw material liquid enters the gear pump 3 from the supply pipe 1 via the orifice 2. The distal end of the discharge pipe 4 of the gear pump 3 is connected to the lower part of the vertical gas-liquid dispersion mixer 5, one end of the connecting pipe 6 is connected to the upper part of the gas-liquid dispersing mixer 5, and the other end of the connecting pipe 6 is Connected to the entrance 8 of the dasher 7. One end of a pipe 10 is connected to the outlet 9 of the dasher 7, the other end of the pipe 10 is connected to the inlet side of a static mixer 11, and the outlet side of the static mixer 11 is connected to the base end of a meandering pipe 12. has been done. In the figure, 13 is a solenoid valve, 14 is a flow meter, 15 is a sterile filter, and 30 is an arrow indicating the rotation direction of the shaft rod, and air passes through the sterile filter 15, the flow meter 14, the check valve 16, and then the piping 17. is sent to the gear pump 3 as shown by arrow 18.
Although not shown, cooling means are provided on the outer periphery of the raw material tank, the outer periphery of the outer cylinder after the dasher 7, and the outer periphery of the piping. In the above, the raw material liquid flows in the discharge pipe 4 as shown by the arrow 19 by the gear pump 3 and is sent to the gas-liquid dispersion mixer 5, and the air mixed in the gear pump 3 is finely divided by the gas-liquid dispersion mixer 5. After the mixture is uniformly mixed, it reaches the dasher 7 as shown by the arrow 20, and flows inside the dasher 7 as shown by the arrow 22 while being moderately agitated by the rotation of the shaft 21 within the dasher 7. During this time, it is homogenized. A thin rod 23 is installed in parallel to the shaft rod so as to maintain a small gap (for example, about 2 mm) with the inner wall of the dashir 7 over the entire length.
A long frame rod 25 is fixed by a leg rod 24, and short frame rods 26 and 27 are provided protruding radially and at equal angles on the entrance side and the exit side of the dashir 7, respectively. Therefore, the frame rods are arranged in four directions near the entrance, one direction in the center, and near the exit (FIGS. 3 to 5). Near the exit, a rectangular blade 28 is fixed at a right angle to the frame rod 27 in parallel with the shaft rod by a support rod 29, so as to maintain a small gap between both long edges of the blade 28 and the inner wall of the dussier. It is set as. The frame rods 26 and 27 each consist of a thin rod parallel to the inner wall of the dashir and a leg rod for fixing the thin rods, and the amount of protrusion is approximately the same as that of the frame rod 25. The frame rods 26, 27
Although the installation width and number are not particularly limited, it is generally preferable to provide a small width on the entrance side and the exit side of the dasher, and to have a slightly larger number and a slightly longer width on the entrance side. The dashir is horizontally installed and has less air separation than a vertically installed one. (Effects of the Invention) This invention connects in series a gas-liquid dispersion mixer, a dossier having a frame rod for agitation, and a static mixer. Regardless, it has the effect of continuously producing high-quality homogeneous products. Furthermore, when the gas-liquid dispersion mixer is installed vertically, there is less air venting. Furthermore, if a static mixer and a meandering pipe are connected in series, a suitable back pressure will be applied and a better effect can be expected.

[Brief explanation of drawings]

Fig. 1 is a flow sheet of an embodiment of the present invention, Fig. 2 is a partial sectional view of the dashir, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a longitudinal section taken along line B-B in Fig. 2. FIG. 5 is a cross-sectional view taken along the line C-C, FIG. 6 is a diagram showing changes in overrun depending on the piping length between the pump and the gas-liquid dispersion mixer, and FIG. 7 is a diagram showing the change in overrun in a conventional whipping device. Fig. 8 is a graph showing the change in cream hardness in an embodiment of the present invention; Fig. 9 is a graph showing the relationship between dasher rotation speed and back pressure in a conventional device;
FIG. 10 is a diagram showing the relationship between the dasher rotational speed and back pressure according to an embodiment of the present invention, and FIG. 11 is a diagram comparing the free fat percentage between a vertical batch mixer and a conventional continuous whipper. 3... Gear pump, 5... Gas-liquid dispersion mixer, 7
...Datsushya, 11...Static mixer, 12...
...Meandering piping, 25, 26, 27...Frame rod, 28...
…blade.

Claims (1)

[Scope of Claims] 1. In a device in which a pump, a gas-liquid dispersion mixer, and a dashir are connected in series through piping, the dashir has a frame rod made of wire attached to the shaft rod, and a blade connected to the shaft rod near the liquid outlet side. 1. A continuous whipping device, comprising a stirring shaft installed over a predetermined width in a cylindrical tank, and a static mixer connected to the exit side of the dusher. 2 The frame rods are installed in four directions near the entrance of the dashir.
The continuous whipping device according to claim 1, wherein the continuous whipping device is provided radially and equiangularly in one direction at the central portion and in two directions at the exit portion. 3. The frame rod is provided with a narrow rod parallel to the shaft rod at the outermost side with a small gap from the inner wall of the dasher, and the thin rod is fixed to the shaft rod by leg rods perpendicular to the narrow rod. Continuous whipping device. 4. The continuous whipping device according to claim 1, wherein the blade is a rectangular plate, and the long edges on both sides parallel to the shaft rod are fixed by a support rod so as to maintain different small gaps with the inner wall of the dasher. 5. The continuous whipping device according to claim 1, wherein the gas-liquid dispersion mixer is installed vertically. 6. The continuous whipping device according to claim 1, wherein the piping between the pump and the gas-liquid dispersion mixer has a length several times or more the diameter of the pipe. 7. The continuous whipping device according to claim 1, wherein a meandering pipe is provided at the outlet of the static mixer.