JP4447395B2 - Stirring device for preparation - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a stirring apparatus for charging used for the preparation of shochu, and particularly to a stirring apparatus for charging that is preferably used for secondary charging of shochu using raw materials such as potatoes.

  Shochu is produced, for example, by saccharifying starch with a koji mold as a raw material for rice, koji, etc., and subjecting this sugar to alcohol fermentation with yeast. For example, as a method for producing shochu using rice bran as a raw material, first, as a primary preparation, water and yeast are added to rice bran and ripened to saccharify the starch of rice, and the yeast uses this sugar for alcohol fermentation The primary mash is made by so-called parallel double fermentation. Next, as a secondary feed, crushed steamed rice cake and feed water as raw materials are added to the primary cake and fermented starch starch of the rice cake to produce secondary cake. Then, this secondary mash is distilled, stored for a predetermined period and aged to produce shochu.

  Here, in the secondary charging, it is necessary to stir the mash. That is, if the temperature of the mash exceeds a certain level or more, the yeast is killed. Therefore, it is necessary to cool the mash by stirring or the like to keep it below a certain temperature. Further, for example, even when the mash is cooled by cooling water or the like, stirring is necessary to keep the temperature of the entire mash uniform.

  As an apparatus that can be used for stirring such moromi, for example, a shaft body is rotatably installed in a container into which raw materials are charged, and a stirring blade that rotates horizontally on the shaft body. There is an apparatus for producing sake lees with bodies vertically (see, for example, Patent Document 1).

  When the above-described secondary charging is performed, if the apparatus for producing sake lees of Patent Document 1 is used as a stirring device, the mash can be stirred to some extent. However, when a raw material with a large amount of fiber such as moss is used, the viscosity of the moromi becomes relatively high, so that there is a problem that it is difficult to sufficiently stir with such an apparatus.

  In addition, when producing shochu using rice cakes or the like as raw materials, there is a problem that fermentation of moromi is hindered by the fiber contained in the raw materials, and fermentation takes time. Furthermore, when distilling mash, there is also a problem that heating takes time and distillation efficiency is lowered.

JP-A-9-107944 (Claims)

  This invention makes it a subject to provide the stirring apparatus for preparation which can stir a raw material favorably and can remove the fiber contained in a raw material comparatively easily in view of such a situation. .

  A first aspect of the present invention that solves the above problems includes a shaft member that is rotatably provided in a central portion of a cylindrical charging tank, a shaft member fixed to an upper end side of the shaft member, and the shaft member. A first agitating blade having an agitating blade inclined so that the rear side is the lower side with respect to the rotation direction, and the surface of the agitating blade of the first agitating blade is provided on the surface of the first agitating blade. A rod-like stirring member extending in a direction intersecting with the stirring blade is fixed at a predetermined interval, and a curved portion that curves toward the front in the rotational direction of the shaft member is provided on the lower end side of the stirring member. It is in the stirring apparatus for preparation characterized by being provided.

  In the first aspect, the mash in the charging tank can be well stirred by the stirring member, and the fiber contained in the raw material can be removed relatively easily.

  According to a second aspect of the present invention, in the first aspect, the stirring member is fixed to be slidable on the surface of the stirring blade.

  In the second aspect, since the position of the stirring member can be easily moved, the cake can always be well stirred regardless of the amount of the cake.

  According to a third aspect of the present invention, in the first or second aspect, the stirring member fixed to each stirring blade is fixed at a position that is asymmetric with respect to the shaft member. In the stirring device for charging.

  In this 3rd aspect, since the locus | trajectory of each stirring member differs, the mash is stirred further favorably.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the shaft member is fixed to a lower end portion side of the shaft member and is inclined so that a front side is a lower side with respect to a rotation direction of the shaft member. There is provided a stirring device for charging, further comprising at least one second stirring blade having a stirring blade.

  In the fourth aspect, the entire mash can be efficiently stirred, and the entire mash can be maintained at a constant temperature.

  According to a fifth aspect of the present invention, in the fourth aspect, the crossing angle of the first stirring blade and the second stirring blade in the rotation direction of the shaft member is approximately 90 °. It is in the stirring apparatus for preparation characterized by being arrange | positioned.

  In the fifth aspect, the mash can be stirred more satisfactorily.

  By using such a stirring apparatus for preparation of the present invention for the production of shochu, the mash can be satisfactorily stirred. Moreover, when using for the production of the shochu which used the material containing many fiber, for example, potatoes, etc. as a raw material, while simultaneously stirring a mash well, the fiber contained in a raw material can be removed by a stirring member. Thereby, while being able to improve manufacturing efficiency, there exists an effect that a high quality shochu can be manufactured.

  Hereinafter, the stirring apparatus for preparation of the present invention will be described in detail. FIG. 1 is a schematic perspective view of a charging stirrer according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a plan view thereof. FIG. 4 is a schematic diagram for explaining the stirring member.

  The stirrer for charging according to the present invention is for stirring a raw material charged into a charging tank having a substantially cylindrical shape when producing shochu, and in particular, a material containing a large amount of fiber, for example, It is preferably used for the production of shochu using raw materials such as moss.

  As shown in FIGS. 1 to 3, the stirring device 1 for preparation according to the present embodiment includes a fixing member 10, a shaft member 20 that is rotatably held by the fixing member 10, and a first member that is fixed to the shaft member 20. 1 stirrer blade 30 and second agitator blade 40, and driving means 50 provided on the fixed member 10 for driving the shaft member 20. Moreover, the stirring apparatus 1 for preparation of this embodiment is formed as a separate body from the preparation tank 100, and is detachably fixed to the preparation tank 100.

  Specifically, the fixing member 10 constituting the charging agitation device 1 is provided across the opening center portion of the charging tank 100, and a pair of gripping portions provided in the vicinity of both ends thereof so as to be movable in the horizontal direction. 11. The pair of gripping portions 11 of the fixing member 10 sandwich the outer peripheral surface of the preparation tank 100 so that the preparation agitation device 1 is fixed to the preparation tank 100.

  The shaft member 20 is rotatably held by the fixing member 10 fixed to the preparation tank 100 in this way. The shaft member 20 is disposed at the center of the preparation tank 100 and has a length that does not reach the bottom surface of the preparation tank 100. That is, the shaft member 20 is held by the fixing member 10 so as to be rotatable without contacting the preparation tank 100.

  Further, on the fixed member 10, for example, a drive means 50 such as a geared motor is provided, and the shaft member 20 is driven by the drive means 50 so as to rotate at a predetermined rotational speed.

  The first stirring blade 30 is fixed to the upper side of the shaft member 20, and has stirring blades 31 on both sides of the shaft member 20. The stirring blades 31 are provided so as to be inclined with respect to the rotation direction of the shaft member 20 such that the rear side is the lower side. The inclination angle is not particularly limited, but is set to about 45 ° in the present embodiment.

  A bar-like stirring member 32 extending in a direction intersecting the first stirring blade 30 is fixed to the surface of the stirring blade 31 so as to be slidable at a predetermined interval. In this embodiment, since the inclination angle of the stirring blade 31 is about 45 ° as described above, each stirring member 32 fixed to the surface of the stirring blade 31 is also inclined at the same angle.

  Moreover, it is preferable that each stirring member 32 fixed to each stirring blade 31 on both sides of the shaft member 20 is fixed at a position that is asymmetric with respect to the shaft member 20. That is, it is preferable that the stirring members 32 provided on the stirring blades 31 on both sides of the shaft member 20 are arranged so that the distances from the shaft member 20 do not coincide with each other. For example, in this embodiment, five stirring members 32 are fixed to one stirring blade 31 at regular intervals. The four stirring members 32 are fixed to the one stirring blade 31 when the first stirring blade 30 (shaft member 20) is rotated by 180 °. It arrange | positions at fixed intervals so that it may be in the position corresponding to the clearance gap between the members 32, and is fixed.

  Furthermore, as shown in FIG. 4, the lower end side of each stirring member 32 is curved toward the distal end side in the rotational direction of the shaft member 20, for example, in this embodiment, is curved in a substantially U shape. A curved portion 33 is provided. As will be described in detail later, the curved portion 33 is provided to capture the fiber contained in the raw material of the shochu.

  In the present embodiment, a stirring blade 34 is further provided at the base end portion of the first stirring blade 30 so as to close the corner between the first stirring blade 30 and the shaft member 20.

  The second stirring blade 40 is fixed in the vicinity of the lower end portion of the shaft member 20, and has the stirring blades 41 on both sides of the shaft member 20, similarly to the first stirring blade 30. However, the stirring blade 41 of the second stirring blade 40 is inclined so that the front side is the lower side with respect to the rotation direction of the shaft member 20, contrary to the stirring blade 31 of the first stirring blade 30. Is provided. The inclination angle is not particularly limited, but is set to about 45 ° in the present embodiment.

  The second stirring blade 40 is preferably fixed to the shaft member 20 in a direction intersecting the first stirring blade 30, and in particular, the first stirring blade 30 in the rotation direction of the shaft member 20 It is desirable that the crossing angle with the second stirring blade 40 is about 90 °.

  And, in the so-called secondary charging in the manufacturing process of shochu, the mash in the charging tank 100 can be stirred well as described below by using such a stirring apparatus 1 for charging. At the same time, since the fiber contained in the raw material can be removed well, a high-quality shochu can be produced.

  As described above, in the stirring apparatus 1 for charging according to the present invention, the stirring blade 31 of the first stirring blade 30 is inclined so that the rear side is the lower side with respect to the rotation direction of the shaft member 20, and the second The agitating blade 41 of the agitating blade 40 is provided so as to incline so that the front side is the lower side with respect to the rotation direction of the shaft member 20. For this reason, when the shaft member 20 is rotated in a predetermined direction, the mash is caused to flow upward by the second stirring blade 40. On the other hand, a downward flow is generated by the first stirring blade 30. That is, by stirring the mash with the stirring apparatus 1 for charging according to the present invention, the temperature of the entire mash can be maintained substantially uniform even if the mash is circulated well, so that the fermentation efficiency is improved.

  In particular, in the present embodiment, since the crossing angle between the first stirring blade 30 and the second stirring blade 40 in the rotation direction of the shaft member 20 is about 90 °, the mash is satisfactorily stirred. Can do. Moreover, in this embodiment, since the flow is generated in the mash by the stirring blade 34 provided in the base end part of the 1st stirring blade 30, the mash can be circulated still more favorably.

  Although not shown, actually, a cooling device that cools the mash in the charging tank 100 by circulating cooling water, for example, is provided outside the charging tank 100. Then, the mash is stirred by the stirring device 1 while lowering the temperature of the mash in the charging tank 100 by this cooling device, so that the temperature of the entire mash is a predetermined temperature or lower, specifically, a constant temperature of 35 ° C. or lower. The temperature is maintained.

  In addition, it is preferable that the rotational speed of this shaft member 20 (the 1st stirring blade 30 and the 2nd stirring blade 40) is made comparatively slow, for example, it was set to about 9 (rpm) in this embodiment. Thereby, since mash is stirred slowly in a natural state, fermentation is accelerated | stimulated and fermentation efficiency further improves.

  In addition, the raw material charged into the charging tank 100, such as sweet potato, is dissolved in a relatively short time in the initial stage of the secondary charging, but the sweet potato is charged as the viscosity of the cake increases even if the sweet potato is dissolved. It becomes a lump in the tank and the speed at which the sweet potato is dissolved gradually decreases. However, in the stirring apparatus 1 for charging according to the present invention, the mass of sweet potato is crushed finely by the plurality of stirring members 32 fixed to the stirring blades 31 of the first stirring blade 30, thereby suppressing a decrease in dissolution rate. Can do.

  In particular, in this embodiment, since each stirring member 32 is fixed at a position that is asymmetric with respect to the shaft member 20, the mass of sweet potato is more finely crushed, so that a decrease in dissolution rate is reliably suppressed. It is done. Accordingly, the production efficiency in the secondary charging is remarkably improved.

  Furthermore, in the stirring apparatus 1 for preparation of this invention, when producing a secondary mash in this way, the fiber of the sweet potato which is a raw material can be removed simultaneously. That is, when the shaft member 20 is rotated, as shown schematically in FIG. 5, the sweet potato fiber is caught by the plurality of stirring members 32 fixed to the first stirring blades 30, Is substantially removed from Further, since the fiber caught by the stirring member 32 is finally collected in the curved portion 33 provided on the lower end portion side of the stirring member 32, the fiber can be collected very easily. That is, as described above, the stirring member 33 is inclined so that the rear side is the lower side with respect to the rotation direction of the shaft member 20. For this reason, the sweet potato fiber caught by the stirring member 32 gradually moves downward as the shaft member 20 rotates, and finally reaches the curved portion 33. Since all the fibers caught on the stirring member 33 are finally collected and held in the curved portion 33, the fibers can be recovered very easily.

  And, by removing the fiber from the mash in this way, the viscosity of the mash is substantially lowered and the fluidity is increased, so that the mash is better stirred and the temperature of the whole mash is maintained more uniformly. Can do. Moreover, since the fluidity | liquidity of a mash is improved, since the sweet potato which is a raw material is melt | dissolved more efficiently, manufacturing efficiency improves significantly. In the subsequent distillation step, the secondary mash is easily handled and the thermal efficiency is increased, so that the production efficiency is further improved. Moreover, the quality of shochu can also be improved by removing fiber in this way.

  As mentioned above, although one Embodiment of the stirring apparatus for preparation of this invention was described, it cannot be overemphasized that this invention is not limited to this embodiment. For example, in the above-described embodiment, the second stirring blade 40 is provided in a single stage. However, the second stirring blade 40 is not limited to this. For example, the second stirring blade 40 may be provided in two stages as necessary. Also good.

It is a schematic perspective view of the stirring apparatus for preparation which concerns on one Embodiment of this invention. It is a front view of the stirring apparatus for preparation which concerns on one Embodiment of this invention. It is a top view of the stirring apparatus for preparation which concerns on one Embodiment of this invention. It is the schematic of the stirring member which concerns on one Embodiment of this invention. It is a figure which shows typically the stirring state of a mash.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stirring apparatus for preparation 10 Fixing member 11 Holding part 20 Shaft member 30 1st stirring blade 31 Stirring blade 32 Stirring member 33 Curved part 40 2nd stirring blade 41 Stirring blade 100 Preparation tank

Claims (5)

A shaft member provided in the central portion of the cylindrical charging tank so as to be rotatable in the vertical direction, and fixed to the upper end side of the shaft member and inclined so that the rear side is the lower side with respect to the rotation direction of the shaft member. A first stirring blade having a stirring blade, and each surface of the stirring blade of the first stirring blade has a rod-like stirring extending in a direction intersecting the first stirring blade The stirring device for charging, wherein the member is fixed at a predetermined interval, and a curved portion that curves toward the front in the rotation direction of the shaft member is provided on the lower end portion side of the stirring member. 2. The charging agitation apparatus according to claim 1, wherein the agitation member is slidably fixed on the surface of the agitation blade. 3. The charging agitation apparatus according to claim 1, wherein the agitation member fixed to each agitation blade is fixed at a position that is asymmetric with respect to the shaft member. 4. The at least one second blade according to claim 1, further comprising a stirring blade that is fixed to a lower end portion side of the shaft member and is inclined so that a front side is a lower side with respect to a rotation direction of the shaft member. A stirring device for charging, further comprising a stirring blade. In Claim 4, The said 1st stirring blade and the said 2nd stirring blade are arrange | positioned so that the crossing angle of both in the rotation direction of the said shaft member may be about 90 degrees, It is characterized by the above-mentioned. Stirring device for preparation.

Images