WO2020004616A1

WO2020004616A1 - Distillation device for distilled liquor

Info

Publication number: WO2020004616A1
Application number: PCT/JP2019/025788
Authority: WO
Inventors: 貴彦稲垣; 秀治元井; 清和氷見
Original assignee: Ｇｒｎ株式会社; 株式会社老子製作所; 富山県
Priority date: 2018-06-29
Filing date: 2019-06-28
Publication date: 2020-01-02
Also published as: GB2590218A; GB202100304D0; JPWO2020004616A1; GB2590218B; JP6721917B2

Abstract

[Problem] The purpose of the present invention is to provide a distillation device effective for imparting excellent liquor quality and that can be manufactured easily at low cost, for the production of distilled liquor. [Solution] A distillation device characterized by comprising a pot part, a head part provided to the upper part of the pot part, and a lyne arm part provided to the tip of the head part, wherein at least one among the pot part, the head part, and the lyne arm part is made from a copper alloy casting.

Description

Distillation equipment for spirits

The present invention relates to a distillation apparatus suitable for producing so-called distilled liquors such as whiskey, brandy, and shochu.

The distillation equipment used to produce distilled liquor consists of a pot (distillation can) for adding and heating the moromi, a head for collecting the steam generated in the pot, and a steam from the head. It has a lie arm for guiding to the condenser.
In this case, since it is known that a part of the steam collected in the head portion is liquefied and returned to the pot portion (inside the kettle), and the distillation quality is changed by the re-distillation, the sake quality is changed. As shown in (a) to (f), there have been proposed ones in which a neck portion is variously formed in a head portion and the angle and length of a lie arm are changed.
For example, Patent Document 1 discloses a distillation apparatus provided with a bifurcated outlet pipe.

It is also known that the liquor quality changes depending on the material of the pot portion, head portion, liar portion and the like of the distillation apparatus.
For example, Patent Literature 2 discloses a simple distillation apparatus combining pottery and stainless steel.
As described later, in the distillation of whiskey and brandy, the aroma is also one of the important sake qualities. If the components of the distillation apparatus are made of copper plate, the sulfur component in the steam generated from the mash will be chemically combined with copper. It is known that a sulfur-like odor is reduced by causing a reaction and being removed as a sulfide, resulting in a clear scent (Non-Patent Document 1).

However, copper stills have been manufactured by bending and welding copper sheet by sheet metal processing.
In sheet metal processing, it is necessary to perform bending while tapping a copper plate according to the mold, and the processing is a manual operation that requires a high degree of skill. Therefore, even a similar still is manufactured one by one. And contributed to the high cost.
Further, in sheet metal processing, not only the bending shape but also the thickness of a plate that can be bent is limited, and is 10 mm or less.
There is also a problem that the life of the still is short because the copper is consumed to remove the sulfur component in the steam as a copper compound.

Japanese Patent Application Laid-Open No. 2007-236210 Japanese Patent Application Laid-Open No. 2010-110313

The present invention aims to provide a distillation apparatus for producing distilled liquor which is excellent in liquor quality, easy to produce, and effective in reducing cost.

A distillation apparatus according to the present invention includes a pot portion, a head portion provided above the pot portion, and a liar portion provided ahead of the head portion. , Characterized in that at least one is made of a copper alloy casting.
The distillation apparatus according to the present invention expresses that the apparatus of the distilled liquor includes a pot section, a head section, and a liar section, and may include other components, and the structure is not limited.
For example, the lie arm is connected to a condenser.

Here, the pot portion refers to a container portion for adding and heating the mash to generate steam (alcohol vapor), and is also called a distillation can or the like.
The head portion is for condensing steam generated in the pot portion toward the lie arm portion, and has a constricted portion or an enlarged inner diameter for the purpose of contraction as shown in FIG. It is manufactured in various shapes, such as those with a large diameter part.
The liar section is also called a distilling pipe or the like, and is for guiding the steam collected by the head section to the condenser section.
The elbow part on the side of the lie arm is connected to the head part side, and the angle of the lie arm is adjusted by the shape of the elbow part.
In the present invention, there is no limitation on these components, and it means that at least one of these components is made of a copper alloy casting.

While these components have conventionally been manufactured by sheet metal processing using a copper plate material, the present invention is characterized in that it is a casting manufactured by casting.
Therefore, it is preferable that the copper alloy is suitable for a casting.
According to the investigations and researches of the present inventors, it has also been found that castings are superior in liquor quality to conventional pure copper-based plates.

Examples of the copper alloy in the present invention include a Cu—Sn based alloy and a Cu—Sn—Zn based alloy.
For example, in the following mass%, Cu: 86.0 to 90.0%, Sn: 7.0 to 9.0%, Zn: 3.0 to 5.0%, or Cu: 83.0 to 5.0% A typical example is a copper alloy of 87.0%, Sn: 4.0 to 6.0%, and Zn: 4.0 to 6.0%, but the present invention is not limited thereto.
Further, the copper alloy according to the present invention may contain a Pb component in a range of 0.1% or less.
It is preferable that other impurity components be suppressed to 1.47% or less.
The Sn component has an antibacterial effect as well as mellowing sake quality.

In the present invention, since the components of the distillation apparatus are manufactured by casting, it is easy to obtain a three-dimensional shape unlike sheet metal processing, and a pot portion or / and / or for the purpose of promoting contact with steam. It is also possible to have a surface area increasing portion such as an uneven portion, a fin-shaped portion, a groove portion, etc. inside the head portion.
This promotes removal of the sulfur component in the steam as sulfide.
Although the casting has a larger surface area than the sheet metal processing due to the difference in the manufacturing method, it may have a fine uneven surface by hairline processing, shot blasting or the like.
Further, a concave / convex portion or a fin portion for promoting cooling by radiation may be provided on the surface of the pot portion, the head portion, or the like.

For example, in the distillation of whiskey, two units, a first distillation unit and a redistillation unit, are often used as a set.
The initial boiler employs a direct fire heating method, and when directly heated from the bottom of the pot portion, in the case of sheet metal, scorching due to local heating is likely to occur.
In the present invention, which is made of a casting, the thickness of the bottom portion of the pot portion can be made thicker than the thickness of the side portion or can be formed in a different shape. The service life can be improved.

As described above, in the distillation of whiskey and the like, the specifications of the pot portion and the head portion change depending on the use of the first distillation device, the re-distillation device, and the like, and the desired sake quality.
Therefore, the present invention uses a copper alloy casting, so that, for example, the pot portion can be divided into an upper portion and a lower portion of the pot, or a divided structure in which the pot portion is further divided into a plurality of portions.
The lower part of the pot has various mechanisms for heating the mash and a mechanism for stirring. Examples of the heating method include a method of injecting steam in addition to the above-mentioned direct fire method and an indirect heating method using a steam pipe from a boiler. .
However, it is difficult to rebuild the entire pot portion for each type and quality of distilled liquor, but when the pot portion is divided up and down in this way, only the lower part of the lower pot matches the type and quality of distilled liquor. Can be replaced.
In addition, in the upper portion of the pot, together with the head portion, in the distillation of whiskey or brandy, a sulfur component during distillation and a copper component in the casting cause a chemical reaction.
The upper part of the pot has a greater amount of wear due to this chemical reaction than the lower part of the pot.
Therefore, when the pot portion is divided into upper and lower portions, only the upper portion of the pot where wear is severe can be replaced.
Further, the lower portion of the pot may be further divided into a bottom portion and an upper side wall portion.
In this case, the thickness of the bottom can be made larger than the thickness of the side wall.
By increasing the thickness of the bottom, the consumption life of the copper alloy due to heating by the heating device is prolonged.
Further, the capacity of the pot portion can be adjusted by the height of the side wall portion.
Thereby, the life of the pot portion as a whole is improved.
The head also has a strong reaction between the sulfur component and the copper component in the steam, which has a great effect on the quality of the sake and is severely worn.
Therefore, according to the present invention, only the head portion can be replaced or replaced with another shape.

Since the distillation apparatus according to the present invention is made of a copper alloy casting, unlike the conventional sheet metal working by plastic deformation, which is made of pure copper, the distillation apparatus has a high degree of freedom in blending a copper alloy component, and includes a Sn, Zn, etc. Ingredients also make it possible to adjust the quality of sake.
In addition, due to the difference in the manufacturing method, there are the following operational effects as compared with those made of sheet metal.
(1) The degree of freedom in the shape and sectional structure of the pot portion and the head portion is high.
(2) The thickness of the component parts can be increased entirely or partially, and the service life against consumption due to reaction with steam can be extended.
(3) For a casting, once a mold is manufactured, it is easy to repeatedly produce the same product, and the productivity is superior to the sheet metal processing manufactured each time.
(4) Only part of the components such as the pot, the head and the lie arm are replaced and used, or the angle of the lie arm and the length of the distillation pipe can be adjusted by replacing the elbow of the lie arm. Easy.
(5) Vibration noise during distillation was loud with conventional sheet metal, but the noise was quiet when cast from a copper alloy.
This is presumed to be due to the point that the weight becomes heavier due to the casting and the difference in the damping performance.
The sound of the distiller during the distillation was measured by a precision sound level meter, which was 83 dB in the conventional sheet metal distiller, but decreased to 70.5 dB in the embodiment of the present invention shown in FIG. , Became quiet.
(6) For example, a copper alloy such as a Cu—Sn alloy has a thermal conductivity of about 48 W / mK, which is smaller than that of pure copper, about 386 W / mK.
Moreover, when it is made of a casting, it is thicker than a conventional pure copper plate and has a heat storage effect.
In the distillation apparatus of this example, when the moromi was introduced at the time of the second distillation, the temperature increased by about 5 ° C. alone, and the amount of heat corresponding to about 45,000 kJ could be saved.
When evaluated by the distillation time, the time could be reduced by about 5 minutes.
(7) In the case of a distillation apparatus made of a casting, since the inner surface is roughened, there is an effect that dirt is less likely to stick than a plate material and is easy to fall, and the cleaning time is reduced to 1/3 or less of the conventional one. .
In addition, the roughened surface increases the surface area, improves the catalytic action by contact during distillation, and promotes the esterification of distilled liquor, resulting in a higher-quality fruity taste.

(A) shows a configuration example of a distillation apparatus according to the present invention, and (b) shows a cross-sectional end view taken along line AA. An example in which the elbow portion 13a of FIG. 1 is replaced and the angle of the lie arm portion is changed is shown. An example in which the lower part of the pot is further divided is shown. (A) to (f) show various examples of the shape of the head portion and the lie arm portion. The evaluation result of the fragrance of SUS and a copper alloy is shown. The evaluation result of the fragrance of pure copper and a copper alloy is shown. 1 shows an electron micrograph of a casting using a copper alloy. The result of component analysis of the extracted distillate is shown.

11 Pot part 11a Pot lower part 11b Pot upper part 11f Side wall part 11g Bottom part 12 Head part 13 Lie arm part 14 Condenser part

構成 An example of the configuration of the distillation apparatus according to the present invention will be described below with reference to the drawings, but the present invention is not limited thereto.

Distillation apparatus according to the present invention have, is suitable for the production of spirits, a pot part 11, as shown in FIG. 1, the head portion 12 which is connected at the flange portion F ₀ at the top of the pot 11.
The shape and structure of the head 12 are designed in accordance with the use of the first retainer, the re-retainer, and the like, and the degree of reduction.
The present embodiment is an example in which an enlarged portion 12a having an increased inner diameter and a cylindrical portion 12b having a truncated cone shape on the upper side are formed.
The head 12 and the condenser 14 are connected by a lie arm 13.
Raiamu unit 13, elbow portion 13a and distillation tube portion 13b, is configured by 13c, etc., they are connected by flanges _{_{_{F 1, F 2, F 3}}} , F 4.
As a result, as shown in FIG. 2, the angle of the lie arm can be adjusted by replacing the elbow 13a shown in FIG. 1 with the elbow 113a having a different angle.
Further, the number and length of the

distillation pipes

13b and 13c can be adjusted.
In this case, since the elbow portion 13a has the greatest wear, the thickness of this portion can be made thicker than the others.
The condenser section 14 is for condensing steam, and in the case of a re-rectifier or the like, a fore or a tail or the like can be returned to the pot section.

When manufactured by casting of a copper alloy, the degree of design freedom is higher than that of sheet metal processing. For example, as shown in a cross-sectional view (end view) along line AA in FIG. Thus, the contact area with the steam can be increased.
In addition, by forming the convex portion 11d on the surface of the pot portion 11, the cooling effect by radiation can be improved.
In FIG. 1A, an inlet 11 c for a raw material is shown in the pot portion 11.

In the present embodiment, the pot portion 11 is divided into two parts, a pot lower portion 11a and a pot upper portion 11b, and bolts are connected between the

flange portions

111a and 111b via a packing material. It is.
There is no limitation on the dividing method and the connection structure.
For example, in the embodiment shown in FIG. 3, the pot lower part 11a may be further divided into a bottom part 11g and a side wall part 11f, and the

flange parts

111f and 111g may be connected by bolts.
Further, the bottom portion 11g and the side wall portion 11f may be connected to each other by welding.
In this way, the bottom 11g and the side wall 11f can be separately cast, and the bottom 11g is the part that is most likely to be consumed by the heating of the indirect heating device arranged inside or the direct heating device arranged outside. The thickness can be made longer than other parts to extend the life.
Further, by adjusting the height of the side wall portion 11f, the capacity of the distillation apparatus can be variously changed.
The embodiment shown in FIG. 3 is an example in which a leg 11h is provided below the bottom 11g.
The legs may also be cast separately and connected by welding or the like.
Further, when the image is divided into two or three or more as described above, it can be easily transported to the site and installed even in a narrow place.
This embodiment is an example in which a sight glass 11e is attached so that the inside can be seen in the pot upper part 11b.
In order to attach the sight glass 11e, it is necessary to form an opening at the time of casting the pot upper part 11b.
In order to form this opening, a sticking die (a wooden mold or the like) is stuck inside the mold above the pot.
In the case of casting, since the attachment position and the shape of the attaching die are free, the degree of freedom in attaching the side glass 11e is high.
The sight glass 11e may be provided in the pot lower part 11a, the cylindrical part 12b of the head part, or the like.
When the pot portion is divided into a plurality of portions in this manner, partial replacement can be performed, and maintenance such as cleaning of the inside becomes easy.

Next, the odor of the distilled liquor obtained by the distillation apparatus according to the present invention and the conventional distillation apparatus was compared and evaluated, and will be described.

<Test evaluation 1>
A pot portion, a head portion, a lyre arm portion, and a condenser portion having the same structure and shape were manufactured as prototypes by changing only the materials, and used for evaluation.
(1) The condenser was adjusted so that 930 ml of mash was distilled at about 25 ° C. to obtain 310 ml of an initial distillate.
(2) Next, 300 ml of the initial distillate obtained above was distilled off by heating, and 15 ml of the forerunner was discarded to obtain 60 ml of the main distillate.
(3) In order to evaluate fairly, the evaluation of fragrance was requested to domestic research institutes, and seven expert panelists rated the following fragrances on the following six items, from 1 (almost no) to 4 (strongly). , Double blind method.
<Definition of fragrance>
・ Feinty: late odor or end weeping odor ・ fresh fruit: fruity ・ sulfury: sulfury ・ meaty: meaty ・ clean: clear scent ・ floral: flower Here, clean and floral are good scents and evaluated. Is preferably large, and feinty and meaty are negative scents, and the smaller or the higher the evaluation value, the better.
Further, sulfury is a hydrogen sulfide smell, and a small value is good.
(4) FIG. 5 shows the evaluation results.
S (stainless steel) is one in which the pot, head, liar and condenser are all made of SUS, and C ₁ (copper alloy) is made of It was cast using an alloy.
<C ₁ > Cu: 86.0 to 90.0%, Sn: 7.0 to 9.0%, Zn: 3.0 to 5.0%, Pb: 0.1% or less, other components FIG. 7 shows an electron micrograph of a cross section near the surface.
(A) is a secondary electron image and (b) is a reflected electron image.
Unlike the pure copper sheet metal, small shrinkage cavities and microscopic composition fluctuations were observed.
Comparing C ₁ and S, the value of sulphury is smaller _{C 1} is made of cast copper alloys are scent of sulfur like.
That, _{C 1} is the value of the fresh fruit is large without being felt hydrogen sulfide odor most.
As a whole as well, towards the C ₁ was superior to Sakeshitsu.

<Test evaluation 2>
Next, a comparison was made between pure copper and a copper alloy.
Experimental and evaluation methods, and C ₂ which all component parts in the same manner as above was fabricated by pure copper, and a cast made of C ₃ using the same copper alloy and of which the pot portion and the head portion and the C ₁ FIG. 6 shows the result of the comparison.
As a result, all the better pot portion and the head portion of C ₃ is one of the copper alloy, a negative flavor than pure copper of C ₂ feinty and meaty is reduced, had improved Sakeshitsu.

<Evaluation test 3>
The pot portion and a head portion using at test evaluation 2, the component analysis results of the extracted distillate in the case of a cast iron C ₃ of the copper alloy shown in the table of FIG. 8.
The analysis was performed using an atomic absorption spectrophotometer.
The sample was analyzed after performing wet incineration and predetermined pretreatment according to a conventional method.
No harmful components of arsenic, lead, cadmium and mercury were detected.

蒸留 The distillation apparatus according to the present invention can be used for producing various types of distilled liquor.

Claims

Pot part,
A head portion provided above the pot portion,
A lie arm provided at the end of the head,
A distillation apparatus, wherein at least one of the pot, the head, and the liar is made of a copper alloy casting.
蒸留 The distillation apparatus according to claim 1, wherein the copper alloy is a Cu-Sn alloy.
The distillation apparatus according to claim 2, wherein the Cu-Sn-based alloy is a Cu-Sn-Zn-based alloy.
The distillation apparatus according to any one of claims 1 to 3, wherein Pb is contained in the copper alloy in a range of 0.1% by mass or less.
(5) The distillation apparatus according to any one of (1) to (4), further comprising a surface area increasing portion such as an uneven portion, a fin-shaped portion, and a groove inside the pot portion and / or the head portion.
The distillation apparatus according to any one of claims 1 to 5, wherein the pot portion has a bottom portion that is thicker than a side portion.
The distillation apparatus according to any one of claims 1 to 6, wherein the pot portion has a divided structure of a pot upper portion and a pot lower portion.
8. The distillation apparatus according to claim 7, wherein the pot lower part is divided into a bottom part and a side wall part.