JPS6311049B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a dissolving machine for powder and granular materials, and particularly to a dissolving machine for protein powder and granular materials such as egg white powder, which belong to the food industry.

[Prior art]

In recent years, liquid proteins such as egg whites have been turned into powder,
It is a common practice to store this powdered material and later dissolve it in water again as needed to return it to its original state before using it for food processing. However, the physical properties of these powdered proteins are not uniform, and even when they are redissolved, there are a wide range of proteins from poorly soluble to easily soluble. Various melting machines have been proposed for melting.
(Japanese Patent Application Laid-open No. 48-40054). However, all conventional dissolvers feed raw water as an annular membrane, so if more than a certain amount of powder is supplied, the water membrane may break or it may be difficult to maintain an unbroken annular membrane. It has been difficult to prepare high-concentration liquid protein for several reasons, including the need to supply more than a predetermined amount of water. Furthermore, the more hygroscopic the powder or granules are, the more they adhere to the inlet and form a layer, and there is a risk that the growth of this adhesion layer will clog the inlet.

Therefore, the applicant has proposed a dissolving machine (patent application).
No. 58-17199, Japanese Patent Application No. 58-147387), we were able to almost achieve the desired purpose of preparing one high-concentration liquid protein, but we were unable to achieve the desired goal of preparing the other powder or granular material. Sufficient results have not yet been obtained regarding problems related to lamination. That is, the solvent supply pipe is opened in the center of the supply opening formed in the upper lid of the stirring chamber of the above-mentioned dissolving machine, and a supply passage for powder and granular material is formed surrounding this, and the above-mentioned A rotary disk that receives the supplied solvent and powder is supported so as to be rotatable in the horizontal direction, and a plurality of stirring blades are installed upright on the rotary disk through a narrow gap between the rotary disk and the upper lid. By doing so, we were able to sufficiently increase the solubility of the powder and granules in the solvent and obtain the desired liquid protein. It is difficult to say that it is perfect to eliminate the harmful effects caused by the accumulation of powder and granules in the mouth.
Therefore, there was a possibility that the powder and granules adhered in layers formed granules and mixed into the prepared liquid protein, resulting in non-homogenization of the liquid protein. One possible way to prevent this is to temporarily retain the heterogeneous product discharged from the stirring chamber, stir and dissolve it to homogenize it, and then discharge it as a final product. It is better to avoid post-treatment as much as possible, as there is a risk that the temperature of the protein will rise during stirring and adjustment, leading to spoilage of the product, and at the same time, the rise in temperature will also cause an increase in viscosity, impairing its fluidity.

[Summary of the invention]

The present invention has been made to solve the above-mentioned drawbacks, and by defining a stirring chamber for raw water and granular material in a dissolver, and rotating this stirring chamber as a whole together with stirring blades, In order to prevent adhesion and stacking of powder and granules in the stirring chamber and to promote discharge of the adjusted liquid protein into the storage tank, a stirring blade is installed in the liquid protein discharge section below the rotary stirring chamber to prevent the liquid protein from accumulating in the stirring chamber. It is designed to promote protein discharge and prevent its temperature from rising.

[Embodiments of the invention]

The present invention will be explained below based on illustrated embodiments.
FIG. 1 shows a cross section of the main parts of the apparatus of this embodiment. According to the figure, there is a supply section 1 for powder and granular material and raw water, an agitation mixing section 2 for receiving and stirring and mixing these raw materials, and a stirring and mixing section 2 for receiving and stirring these raw materials. and a discharge section 3 for discharging the product.
The stirring and mixing part 2 and the discharge part 3 are installed in the same cylindrical part, and are mounted and fixed on a base B.

The supply section 1 includes a feed path 11 that vibrates the powder and granules installed in the raw material receiving section of the melting machine from a hopper H that supplies the powder and granules, and a bottom end of the feed path 11. It consists of a funnel 12 that receives raw materials from the periphery of the opening and supplies the raw materials to an agitating/mixing section 2, which will be described later, and a water supply pipe 13 that supplies raw water.

The water supply pipe 13 faces the center of the funnel 12 and includes a bent resin hose 13a and a pipe 13b covering the tip of the hose, and this double pipe structure prevents dew condensation on the surface of the pipe 13b. This makes it possible to suppress adhesion and stacking of powder particles as much as possible. The funnel 12 for receiving powder and granular material includes a straight body part 12a and an expanded part 12b expanded above this straight body part.
This straight body part 12a is fitted and connected to a cylindrical part 21a formed at the center of the upper lid 21 of the stirring and mixing part 2.

The upper lid 21 is a large-diameter flat cylindrical member having the cylindrical portion 21a in the center, and has a protruding stepped portion 21b along the circumference formed on its side wall, thereby forming a straight body portion of the discharge portion 3. is tightly fitted. Immediately below the upper lid 21, a stirring disk 22 with a slightly smaller diameter is arranged in parallel, and a rotating shaft 24 is connected to the center back surface of the stirring disk 22 via a connecting pin 23. The disk 22 is rotationally driven by the drive source _M1 .
Further, on the upper surface of the stirring disk 22, a plurality of stirring blades 25 curved in the direction of rotation are radially arranged (see Fig. 2), and the raw water W and powder particles are applied with centrifugal force on the disk 22. It plays a role in increasing the dissolution efficiency of body P and promoting the flow and excretion of the obtained high-quality liquid protein.

Further, a covering disk 26 is placed over the plurality of stirring blades 25 to form a stirring chamber for the powder P together with the stirring disk 22, and the center of this covering disk 26 is introduced with approximately the same inner diameter as the upper lid cylindrical portion 21a. A hole is provided, and its outer peripheral edge 26b is bent so as to face the rising end of the outer periphery of the stirring disk 22 with a discharge gap in between, thereby forming a ring-shaped discharge port for the adjusted liquid protein. Moreover, a plurality of pins 27 are suspended from the lower surface of the covering disk 26, and these pins are fitted into the holes formed in the stirring disk 22 to prevent relative movement between the two. Therefore, when the stirring disk 22 is rotated, the covering disk 26 also rotates, and therefore the stirring chamber itself rotates. In addition, since the gap between the inlet of the covering disk 26 and the lower end of the funnel body 12a is small as shown in the figure, the powder P or the adjusted liquid protein that is atomized during stirring escapes through this gap. Moreover, even if the granular material P tries to adhere to the lower end of the straight body part 12a, it can be prevented by the rotational force of the introduction port. Therefore, there is no possibility that grain agglomerates caused by the adhering powder or grains will be mixed into the adjusted liquid protein.

Such adjusted liquid protein reaches the discharge section 3 from the ring-shaped discharge port of the stirring chamber;
is formed as a cylinder as described above, in which a plurality of discharge rotary blades 34 are attached to the rotating shaft 35,
(See Fig. 3), this rotating shaft 35 is connected to a hollow drive shaft 36.
and are connected to each other via a key 35a. This hollow drive shaft 36 penetrates through the bottom plate 31 of the discharge section and is fitted into a gear box 4 formed below, and is connected to a large gear 41 in the gear box 4 via a key 42. And this hollow drive shaft 36
The above-mentioned rotating shaft 24 is mounted within the rotating shaft 24 so as to be relatively movable, and is adapted to drive the stirring disk 22 in rotation. Furthermore, the large gear 41 is configured to mesh with a small gear 42 adjacent thereto, and to be rotationally driven by a drive source M ₂ attached below the small gear 42 . And the rotary blade 34
is attached to the rotating shaft 35 via its inner end, and its lower end is fixed to a rotating plate 35b extending outward from the lower end of the rotating shaft 35 along the discharge unit bottom plate 31 so as to define a space above the rotary plate 35b. has been done.

Next, the operation of the dissolving machine having the above configuration will be explained. The powder and granules stored in the hopper flow from the hopper outlet through the feeding path 11 in the direction of the arrow in FIG.
2 and reaches the stirring disk 22. At this time, even if the granular material contains a lot of moisture and is likely to form granular agglomerates, the vibrator on the right side of the figure crushes the granular agglomerates, and the granular material is reliably placed in an annular shape on the stirring disk 22. Supply P. On the other hand, the raw water W flows through the water supply pipe 13 in the direction of the arrow by a pump (not shown) and enters the stirring disc 22 through the inlet of the covering disc 26, and then centrifugal force is applied to the raw water W by the stirring disc 22. and scatters along the upper surface to the outer periphery along with the powder P. At this time, the powder is atomized in the stirring chamber under the action of the plurality of curved stirring blades 25, and the dissolution of the powder P into the raw water W is promoted. At this time, a part of the powder P adheres to the lower end of the straight body part 12a of the funnel, but this is due to the introduction port 26a of the rotating coating disk.
Since the particles are constantly removed by the rotating disk 22, the particles that fall onto the rotating disk 22 do not grow, and are supplied to the discharge section 3 below through the guide section 26b of the coated disk as a homogeneous, high-concentration liquid protein.

The reason why the stirring blade 25 is curved in the direction of rotation is to lengthen the residence path of the solid-liquid mixed state as much as possible and promote its dissolution.

On the other hand, in parallel with the dissolution of the powder P into the raw water W, the small gear 42 is driven, and the rotating shaft 35 is driven via the large gear 41 meshing with the small gear 42 and the hollow drive shaft 36 connected thereto. Then, the adjusted liquid protein on the rotary plate 35b is discharged. At this time, the rotating plate 35
The upper space b is divided into a plurality of chambers by a plurality of rotary blades 34, and the liquid protein present between the rotary blades 34 can be guided sequentially to the discharge port 32 to promote discharge of the liquid protein. However, if the rotational speed of the rotor 34 is increased beyond a certain level, the discharge port 3 of each compartment
Since the opening time to 2 may be shortened and the amount of liquid protein discharged may be inhibited due to its viscosity, it is necessary to adjust the rotation speed appropriately. However, as mentioned above, since the drive sources M ₁ and M ₂ are linked to two independent shafts, it is possible to give each shaft the desired rotation speed, and
The hollow shaft configuration saves installation space and allows the stirring and discharging mechanisms to be simply configured on the same axis.

By promoting discharge in this way, it is possible to prevent the temperature of the liquid protein from rising, allowing it to be kept at a low temperature without damaging its quality, and also without increasing viscosity due to temperature rise. , is effective in promoting excretion.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to prepare a homogeneous liquid protein even though it is a liquid protein with high concentration and high viscosity, and furthermore, it is possible to prepare a liquid protein at a low temperature with a quick discharge operation, and it is possible to improve the quality. It is also possible to obtain excellent liquid protein.

[Brief explanation of the drawing]

1 to 3 are views showing an embodiment of the present invention, in which FIG. 1 is a sectional view of the main part of the embodiment device, FIG. 2 is a partially cutaway view of FIG. 1, and FIG. FIG. DESCRIPTION OF SYMBOLS 11... Feeding path (supply passage), 13... Water supply pipe (solvent supply pipe), 21... Top lid, 21a... Cylindrical part, 22
... Stirring disk, 25 ... Stirring blade, 26 ... Covered disk, 3
...Discharge section, 34...Rotary blade.

Claims (1)

[Claims] 1. A solvent supply pipe is opened in the center of the supply opening formed in the upper lid of the stirring container, and a supply passage for the powder and granular material to the supply opening is formed by surrounding this solvent supply pipe, and a supply passage is formed directly below the supply opening. On the other hand, a stirring disk which receives the supplied solvent and powder and granules is rotatably supported in the horizontal direction, and the stirring disk has stirring blades curved in the direction of rotation extending radially from the vicinity of the lower position of the supply opening. A covering disk having an inlet having approximately the same diameter as the supply opening is attached to these stirring blades through a narrow gap between the stirring blades and the upper lid to define a stirring chamber, A discharge gap is formed between the rising part of the periphery of the stirring disk and the lower bent part of the periphery of the covering disk which is curved to cover the rising part of the periphery of the stirring disk. The melting machine is characterized in that a discharge rotor is provided on a hollow drive shaft surrounding the drive rotation shaft of the stirring disk, and both of these shafts are linked to separate drive sources.