JPS63294902A - Deodorizing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a deodorizing device that separates and recovers fragrance components from a raw material liquid having an aroma.

Separation and recovery of aroma components from raw liquids with aromas is carried out in various industrial fields.For example, in the food industry, it is used to produce concentrated fruit juices such as oranges, grapes, and apples. In this case, the fruit juice is concentrated after separating the aromatic components from the fruit juice, which is the raw material liquid, or while being separated, and the aromatic components are added to the concentrated fruit juice to obtain a product with a good flavor. When producing soup extracts from beef, pork, etc., aroma components are separated and removed to remove the fishy smell.

Separation and recovery of fragrance components from a raw material liquid having an aroma as described above is generally carried out by distilling the raw material liquid. That is, a raw material liquid having an aroma is supplied into a distillation column and heated, the aroma components are evaporated together with the raw material liquid, this vapor is introduced into a condenser from the top of the distillation column, and the vapor is liquefied by this condenser. A liquefied product containing a large amount of fragrance components is obtained. A part of the liquefied product is taken out and the rest is refluxed to the top of the distillation column through the reflux line. By repeating this series of operations, the fragrance components are removed from the raw material liquid. Separated and collected.

Various types of deodorizing devices using distillation as described above have been proposed and put into practice, for example,
Some of these are disclosed in Japanese Patent Publication No. 1305 and Japanese Patent Publication No. 53-37310.

B　　　　　　　1　4 However, conventional deodorizing devices have the following problems.

Steam with a high fragrance component content from the top of the distillation column of the deodorizing device and the liquefied product obtained by liquefying this vapor in the condenser are treated in the same way, and a part of the liquefied product passes through the reflux line and is distilled again. Introduced into the tower. However, when separating fragrances, in the process of increasing the percentage of fragrance ingredients in the liquefied product, the fragrance ingredients become supersaturated in terms of solubility, and the fragrance ingredients float or settle as oil droplets in the reflux pipe. The phenomenon occurs frequently. Comparing the concentration of scent components in the oil droplets separated from this liquefied product and the remaining liquid, the oil droplets have an overwhelmingly higher concentration. Because the product was returned to the distillation column through the reflux line, the concentration of the final flavor was low, and the distillation effect of the device was reduced.

Fortune telling.

The present invention has been made in view of the above-mentioned problems, and is made by evaporating the aromatic raw material liquid supplied into the distillation column, and causing the vapor to flow into the condenser from the top of the distillation column to produce a liquefied product. In the deodorizing device, which is equipped with a reflux line that is introduced into the distillation column again, the reflux line is provided with a fragrance oil separation tank that separates and collects oil droplets containing a large amount of fragrance components from the liquefied product based on the difference in specific gravity. This is a deodorizing device installed.

Style The deodorizing device according to the present invention collects oil droplets with a high content of fragrance components as fragrance oil using a fragrance oil separation tank connected in the middle of a reflux line, refluxes the remaining liquid to a distillation column, and removes the fragrance from the fragrance oil. This system efficiently separates and recovers oil.

An embodiment of the deodorizing device according to the present invention is shown in FIGS. 1 to 3, and will be described below with reference to the drawings.

In FIG. 1, (10) is a distillation column, (20) is a condenser, (30) is a reflux line, and (40) is a fragrance oil separation tank (hereinafter abbreviated as separation tank), which is a feature of the present invention. .

The distillation column (lO) is, for example, filled with an appropriate packing (
11) A packed tower filled with (11), with a dropping nozzle (12) for dripping a raw material liquid containing flavor components such as fruit juice or soup in the central part, and high-temperature steam introduced in the lower part, It is equipped with a steam pipe (13) for heating and evaporating the raw material liquid, and the dripping nozzle (12) is equipped with a steam pipe (13) for heating and evaporating the raw material liquid.
) is supplied with raw material liquid from a raw material liquid supply source (A) via a flow needle (14) and a preheater (15). The above distillation column (
10) is provided with an outlet (16) for discharging the liquid after distillation, that is, after removing the fragrance component, and this outlet (16) is connected to the recovery tank (B) via a preheater (15). The liquid taken out from the above-mentioned outlet (16) after the fragrance component has been removed is
After being used as a heat source for preheating the raw material liquid in the preheater (15), it is stored in the recovery tank (B).

Condensed above! i (20) is connected to the top of the distillation column (10), and this condenser (20) is connected to the distillation column (
A reflux line (30) is piped to the top of 10). The drain pot (21) has a structure as shown in Figure 3, and runs from the condenser (20) to the pipe line (2) on the left side of the figure.
The liquefied material flowing into 1a) is introduced into the separation tank (40) from the lower pipe (21b), and the unliquefied vapor is sent from the upper pipe (21c) to the after-condenser, which is another condenser. (22), and the pipe (21d) on the right side of the figure is connected to the separation tank (4), as will be described later.
0) Connected to the upper part, drain pot (21) and separation tank (
40) to balance the pressure inside.

The separation tank (40) is a substantially cylindrical container whose upper and lower openings are closed with lids (41) and (42), respectively, as shown in FIG. A bypass opening (43) is formed in the lower lid body (42), and a residual liquid outlet (44) is formed in the center part, and an oil droplet outlet (45) is formed on the side thereof. At the center of the side wall of (40) is a conduit (21) at the bottom of the drain bot (21).
b) A liquefied inlet (46) is formed which is connected to the liquid inlet (46).

Inside the separation tank (40), the residual liquid outlet (44) is provided.
and a small diameter pipe (4) communicating with the oil droplet outlet (45), respectively.
7) (4B) is erected on the lower lid (42). The small diameter pipes (47) and (48) are both
A pipe (47) extending toward the upper lid (41) and connected to the residual liquid outlet (44) is connected to the oil droplet outlet (44).
5) The opening is at the same level or slightly lower than the pipe (48) connected to the side.

On the outside of the pipe (47) connected to the residual liquid outlet (44) side, another large diameter pipe (49) is arranged coaxially with the pipe (47). The large diameter pipe (49) has its base end fixed to the lid (42), and its upper end opened near the upper lid (41) at a position higher than the pipe (48). An appropriate number of through holes (50) (50) are bored near the base end of the large diameter pipe (49) to communicate the inside and outside of the pipe (49). .

The bypass opening (43) is connected to the drain bot (
21) is connected to the side pipe (21d), and the residual liquid outlet (44) is connected to the reflux line (21d) leading to the top of the distillation column (lO).
30), and the oil droplet outlet (45) is connected to the cooler (51).
, are connected to the collection container (53) via a flow meter (52).

In Fig. 1, reference number (54) is a steam trap that discharges only water condensed from the steam piping including the steam pipe (13) to the outside of the system, and (55) is a steam trap in the reflux line (30). A reflux pump (56) is disposed in the separation tank (40) and supplies the residual liquid from the separation tank (40) to the distillation column (10), and (57) is a cooling water supply source to the condenser (20). is the supply source of cooling water to the after-condenser (22), and the cooling water discharged from the after-condenser (22) is used as cooling water again in the cooler (51), and then drained out of the system. be discharged.

The operation of the deodorizing device having the above configuration will be explained below.

Supplying high-temperature steam to the steam pipe (13) at the bottom of the distillation column (10) to heat the inside of the distillation column (10);
The water condensed at this time is stored in a steam trap (54
) is discharged to the outside of the system.

In this state, the preheater (15) supplies the raw material liquid containing fragrance ingredients preheated by the preheater (15) into the distillation column (10).
The raw material liquid preheated in step 15) is dripped in the form of raindrops from the dropping nozzle (12) in the center of the distillation column (]0), and is heated by the steam pipe (13) at the bottom to raise the temperature and release the fragrance ingredients. evaporates with it. This vapor is then transferred to a distillation column (10
) and comes into contact with the above-mentioned dropped raw material liquid, and a substance exchange occurs in which the fragrance components are transferred to the vapor and other components of the raw material liquid are transferred to the above-mentioned dropped liquid, and the above-mentioned vapor contains many fragrance components. The dripped liquid flows from the top of the column toward the condenser (20), and the above-mentioned dripping liquid accumulates at the bottom of the distillation column (10) while removing the aroma components, and most of the aroma components are removed from the outlet (16). It is taken out as a liquid that does not contain Note that, as described above, in order to effectively utilize heat, this deodorizing component liquid is used as a heat source for the preheater (15) to preheat the raw material liquid newly supplied to the distillation column (10).

The vapor containing fragrance components that has flowed into the condenser (20) is cooled and liquefied here, and this liquefied product is transferred to the drainbot (
21) and flows into the separation tank (10).

As mentioned above, the above-mentioned liquefied product contains oil droplets with a high concentration of fragrance components, and these oil droplets contain the above-mentioned Bone M! (40
), the oil droplets flow out from the pipe (48) and flow into the cooler (51).
, through the flow rate needle (52) to a recovery container (53) as fragrance oil.
) is taken out.

Of the above liquefied product, the remaining liquid after removing the oil droplets is transferred to the pipe (4
9) through the through hole (50) <50) --- flows into the space between the P/F tube (47) and the pipe (49), overflows and flows into the pipe (49), and then returns. It flows through the reflux line (30) via the pump (55) and is introduced into the top of the distillation column (10).

Note that the inside of the separation tank (40) has a bypass opening (43).
) and the pipe line (21d) of the drain bot (21), the pressure inside the drain bot (21) is in equilibrium, and furthermore, the drain bot (21) is connected to the pipe line (21b).
) and the atmosphere through the after-condenser (22), there is no negative pressure inside the separation M (40), and therefore the oil droplets and residual liquid are transferred to the oil droplet outlet ( 45) as well as the residual liquid outlet (44).

On the other hand, the steam that was not liquefied in the condenser (20) is
The drainbot (21) is led out from the upper pipe (21c) to the after-condenser (22) and cooled in the after-condenser (22), and the liquefied liquid is sent to the drainbot via the above-mentioned pipe (2I C). (21
) is introduced into the separation tank (40) through the lower pipe (21b), and the small amount of vapor that has not been liquefied here is also released into the atmosphere.

The residual liquid introduced from the reflux line (30) to the top of the distillation column (10) comes into contact with the vapor of the raw material liquid that has evaporated together with the fragrance components in the distillation column (10), whereby the fragrance components are further separated. The distillation column (10) is removed from the outlet (16) at the bottom.
) is taken out to the recovery tank (B) as the above-mentioned deodorizing component liquid.

By performing the above series of operations continuously, the fragrance components are separated from the raw material liquid containing the fragrance components as a fragrance oil containing a high concentration of the fragrance components, and the fragrance oil is stored in the recovery container (53). On the other hand, the defragrant component liquid after the fragrance components have been removed from the raw material liquid is stored in a recovery tank (B). The deodorizing component liquid stored in the recovery tank (B) is concentrated as appropriate depending on the purpose.

In the above example, it was explained that the fragrance oil separated from the raw material liquid has a lower specific gravity than the residual liquid and floats to the upper layer in the separation tank (40). When the specific gravity of the fragrance oil is large, the separation tank (40)
The pipes (48) (49) inside the tank (48) and (49) may be removed, and the fragrance oil that is precipitated and separated at the bottom of the separation tank (40) can be taken out directly from the oil droplet outlet (45).

]yl of 3u1 As explained above, according to the deodorizing device according to the present invention,
The vapor from the distillation column is liquefied in a condenser, and the oil droplets containing a large amount of fragrance components are preferentially collected in a separation tank, so the extracted fragrance oil has an extremely high content of fragrance components. Concentration of fragrance oil reduces the amount of fragrance oil taken out, making it easier to transport and transport, saving space, and as mentioned above, increasing the separation efficiency of fragrance components, making equipment more compact. .

Incidentally, the present invention can be applied to conventional devices by simple improvement, and the above-mentioned excellent effects can be obtained, so that the present invention has extremely high practicality.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the deodorizing device according to the present invention, FIG. 1 is a schematic diagram of the entire device, and FIG. 2 is a fragrance oil separation tank that is a feature of the present invention. FIG. 3 is a schematic configuration diagram of the drain bot. (10) - Distillation column, (20) - Condenser, (3
0) - reflux line, (40) - fragrance oil separation tank.

Claims (1)

[Claims] (1) Equipped with a reflux line that evaporates the aromatic raw material liquid supplied into the distillation column, causes the vapor to flow into the condenser from the top of the distillation column, and introduces the liquefied product into the distillation column again. The deodorizing device is characterized in that the reflux line is provided with a fragrance oil separation tank that separates and collects oil droplets containing a large amount of fragrance components from the liquefied product based on a difference in specific gravity.