JPS61289840A - Coffee extractor - 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 [Technical Field of the Invention] The present invention relates to a coffee liquid extraction device, and particularly to a coffee liquid extraction device that is of good quality and capable of efficiently extracting coffee liquid.

[Technical Background of the Invention] Various methods have already been proposed for extracting coffee liquid. The basic idea is to connect a plurality of extraction towers in series, and sequentially pass spring water as a solvent through each of the extraction towers filled with heat raw materials (beans). This is to recover a heel liquid of a predetermined concentration from the extraction tower. Therefore, in order to increase the amount of coffee liquid extracted, it is only necessary to increase the flow rate of the extract flowing sequentially in each extraction tower. In this case, the extraction tower into which hot water is first injected at the back of the plurality of extraction towers has the largest extraction amount from coffee Ω due to the osmotic pressure, and the amount of extraction from coffee Ω decreases successively. This is because the coffee concentration of the solvent passing through each extraction column for extraction increases. Therefore, if we focus on the decay (Ω) of heat in each extraction tower, the coffee in the first extraction tower is the most wasted, and the coffee beans in the last extraction tower is the most wasted. The real power is small. Therefore, the m degree of the extract from the extraction tower located at the last position is constantly measured, and when this t+t drops below the standard concentration, extract 111, which is the most destructive, is extracted from the first extraction tower. It is necessary to separate the extraction column from the series and enter the extraction column containing the new heat raw material into the extraction series.

However, the extraction tower filled with new coffee raw materials and waiting for the next combination is full of coffee raw materials in a dry state, so these When the pressurized extract is passed through Lima, the pressure inside the extraction tower increases, and there is a risk that the extraction tower will burst.

In order to avoid this phenomenon, the applicant first proposed patent No. 1246.
No. 276 (Special Publication No. 50-20335) was proposed. The approximate content of the above proposal will be explained using FIG. 6th
The figure shows how multiple extraction towers are connected and in operation, and how the worn-out extraction tower is separated and replaced with a new extraction tower filled with raw rice. FIG. 2 is a list diagram showing whether or not a person enters an extraction series.

In Fig. 6, the numbers written in the vertical column on the left side of the list are the numbers of the extraction towers that are filled with new coffee raw materials and are waiting for their turn to be combined, and the numbers marked with ○ in the horizontal column are: The series of extraction towers used at that time is shown.

To explain in more detail, the top stage is the extraction tower ■, ■, ■,
For example, when extracting and covering ]-Heat liquid using four of the six units (■, ■, ■), the -Heat raw material in the extraction tower (■) is worn out and used. This figure shows a case in which, when the extraction tower (2) becomes unusable, the unusable extraction tower (2) is removed from the extraction series, and the extraction tower (2) filled with a new coffee raw material is entered into the new extraction series. Therefore, the extraction tower ■ shown at the top of the vertical column indicates the extraction tower that newly enters, and the horizontal columns ■, ■, ■, ■, ■, ■ indicate the rank of the extraction series in this order from now on. There is.

In this case, the next extraction series will be carried out using four units, ■, ■, ■, and ■, so the extraction column ■ should be connected immediately (the extraction column ■ has already undergone the swelling action, so it should be connected immediately). Neighbor (not physical neighbor, but neighbor as extraction operation order)
■Extraction tower ■ in advance without connecting immediately -
A series of extraction processes have been carried out into the extraction tower (extraction tower which is next in rank after the IIjil extraction tower) which is filled with He-Haronori] - Inject the He-concentrated solution until it overflows, After the coffee concentration solution has been sufficiently injected, the extraction column (2) which should have been originally connected is connected, and extraction operations are performed using the new extraction series (2), (2), (2), and (4). this is,
The extraction tower ■ is in a swollen state to begin with, and the extraction tower ■, ■, ■
This is to ensure that the extraction tower (2), into which the coffee concentration solution has already been injected, is sufficiently swollen during the extraction operations in steps (2) and (2).

To further explain the second stage in Figure 6, in the first stage described above, the extraction column ■ was newly entered into the extraction series, but after the above operation, the first stage Since the coffee raw material in the extraction tower ■ into which hot water is poured becomes unusable due to wear and tear, the extraction tower ■ is excluded from the extraction series as described above.
A case is shown in which the extraction tower (2), which is already in a swollen state and on standby, is returned to normal operation.

In this case as well, as explained in the first stage, without directly connecting the adjacent extraction tower (the extraction tower in the next connection order) ■, the extraction tower ■ in the next connection order of the adjacent extraction tower ■ is connected. On the other hand, it is shown that the coffee concentration solution is first injected until it overflows, and then connected to the adjacent extraction tower (2).

Each stage below means repeating the above operation for each extraction column.

Here, the coffee liquid extraction apparatus shown in FIG. 7 has conventionally been used for the above-described operation.

The outline of this device is as follows. That is, the pump 8 is used to flow the lagoon as a solvent from the hot water tank 7 through the injection main pipe 9 to the extraction tower ■→■→■→■, and the extract from the final extraction tower ■ is sent through the discharge pipe 10. The extracted liquid is recovered to the extract liquid tank 11 via the extract liquid tank 11. In this extraction process, as mentioned above, the coffee beans in the extraction tower (■), where hot water is first injected, suffer the most wear and tear. Prior to the connection of (2), the coffee concentration solution that has gone through a series of extraction processes is injected into the extraction tower (2) which is the next connection order of the adjacent extraction tower (2), and then a new extraction series (2), (3), and (3) is injected. ,■
Perform the extraction operation by
, ■, ■, ■, and ■, ■, ■, ■, etc., and the extraction operation is repeated in a 1:1 ratio.

[Problems with blue technology] It has been found that when the method proposed by the applicant described above is carried out using a conventional device, there are the following disadvantages. For example, in FIG. 7, a case will be considered in which the extraction operation is performed using four extraction columns ①, ②, ②, and ②. In this case, the solvent from the hot water tank 7 passes through the pump 8 and the injection main pipe 9 in the order of the extraction tower ■→■→■→■ according to the arrows shown in the figure, and from the bottom of the final extraction tower ■ via the discharge pipe 10. The coffee liquid reaches the extract liquid tank 11 and is collected therein.

At this time, prior to disconnecting the extraction tower (■) which suffers the most wear and tear and connecting it to the adjacent extraction tower (■) which is filled with new coffee raw materials and is in a standby state, The coffee concentration solution that has undergone a series of extraction processes must be injected into the extraction tower (2), which is the next in the connection order.

However, there is no way to connect the final extraction tower (■) to the extraction tower (2) without passing through the adjacent extraction tower (2), and it is necessary to rely on some other means. In addition, in FIG. 7, the valves shown in each pipe are shown only in their positions and not in their open/closed states.

[Objective of the Invention] The present invention has been made to solve the above-mentioned problems, and it is to provide a heel liquid extraction device capable of injecting a coffee concentration solution into an extraction tower in a standby state. It is an object.

[Summary of the invention] In the present invention, a concentrated solution extraction pipe is provided that communicates with the discharge pipe, and by connecting this pipe to the extraction pipe of each extraction tower, a series of extraction processes are performed via a pump. The coffee concentration solution is intended to be directly injected into each extraction column.

[Embodiments of the Invention] Examples will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of a coffee liquid extraction device according to the present invention.

In FIG. 1, the symbols ■ to ■ and 7 to 11 correspond to those in FIG. That is, each of the extraction towers ① to ② is connected in series. To describe this in more detail, the injection main pipe 9 connected to the hot water tank 7 is connected to the extraction tower
It is connected to the extraction lid 13 of.

The discharge lid 14 of the extraction column
0 and reaches the extract liquid tank 11. The other extraction towers (1) to (2) are also similar to the first extraction tower (2) described above. The structural feature of the present invention is that a concentrated solution extraction pipe 52 communicating with the discharge pipe 10 is provided, and each extraction column
The point is that a pump 53 is connected to each of the extraction pipes 12 of (2) and is provided in the concentrated solution extraction pipes 1 to 1. In addition, in the figure, 15 to 51 are valves, and these merely indicate their positions. The overall structure of the immortal is similar to that of the conventional example.

Next, do a series of actions. First, in FIG. 1, let us consider the case where the extraction operation is performed by four extraction columns, ie, extraction towers ①, ②, ②, and ②.

In this case, the solvent in the hot water tank 7 is directed into the injection main pipe 9 in the direction of the arrow by the pump 8, enters the first extraction tower (■) via the extraction pipe 12, and is directed to the bottom of the extraction tower (■). From there, the coffee liquid passes through the extraction pipe 12 and enters the extraction tower ■, and as it passes through the extraction tower ■→extraction tower ■ in the same way, the concentration of the coffee liquid increases sequentially, and these ]- The heel liquid is stored in an extraction liquid tank 11 through a discharge pipe 10, and the process ends.

In addition, in order to obtain the above-mentioned flow of the solvent and coffee liquid, the opening and closing states of the valves, for example, in this case, valves 15 to 19 are open, 20.22.24.27.30.32
．． 34. 36. 37. 40. 42. 44. 46 I should explain the state of closed etc., but since the inside of each pipe is filled in to indicate the position of the liquid and the direction of flow is indicated with an arrow, I will not explain it hereafter. In this explanation, the opening and closing states of the valves are not particularly explained. That is, if the position and flow direction of the liquid are known, it is sufficient to open and close the valves accordingly, and there is no particular point in opening or closing the valves.

In this state, the final extraction tower (extraction tower in this case)
Of course, it is necessary to measure the concentration of the extract from the lagoon and monitor the predetermined standard concentration, but if the concentration (quality) decreases, the first thing to do is to Discharge the coffee beans in the extraction tower (extraction tower ■ in this case) M1
Open the hatch 4 to discharge the water to the outside, and then open the inlet lid 13.
The container will be opened, filled with new beans, and kept ready for the next bonding.

However, in the present invention, upon completion of extraction of the extraction series ■, ■, ■, ■, the extraction tower ■ that has the greatest loss of coffee beans is separated, and the adjacent extraction tower The coffee concentration solution that has gone through a series of extraction processes is injected into the extraction tower (2), which has the next connection order after extraction (1) (2), and then the adjacent extraction tower (2) is connected.

FIG. 2 is an operational state diagram in which a coffee concentration solution is injected into the extraction tower (2) which has the next connection order of the adjacent extraction tower (2). In this case, in FIG. 2, the discharge pipe 10 is
Go to 1] - While the heel solution is flowing, the newly installed pump 53 is activated (valve 49 is closed, valve 50 is of course open, and a series of extraction steps have been performed) - Inject the hea concentration solution. It is injected into the extraction tower (2) through the pipe 12 and placed in a standby state.

That is, as already explained, during this standby state, the extraction tower (1) containing the dried [-heater] becomes swollen.

Next, the extraction tower ■ is disconnected, and the extraction tower ■ that is already on standby is separated.
, and perform an extraction operation using the new extraction sequence ■−■−■−〇. This is the state diagram shown in FIG. Of course, in this case, the valve operation is performed according to the flow of the heel liquid, but as described above, this is omitted. During the extraction process, the pump 53 is stopped.

Figure 4 shows that when extraction towers ■, ■, ■, and ■ complete extraction, extraction tower In contrast, it is a diagram showing how a coffee concentration solution is injected.

In this case as well, the coffee concentration solution is injected into the extraction tower 1 through the extraction pipe 12 by setting each necessary valve in a predetermined state and operating the pump 53, as described above. And Figure 5 shows the new extraction series■→■→
This is a diagram in which the extraction operation is performed by ■→■, and as it has already been described in the above 2, detailed explanation will be omitted. By sequentially repeating these operations, the coffee liquid extraction operation is performed.

[Effects of the Invention] As explained above, according to the present invention, a concentrated solution extraction pipe is provided in communication with the discharge pipe, and the pipe is connected to the extraction pipe of each extraction tower via this pipe, so that the present invention is extremely effective. It is possible to provide a coffee liquid extraction device capable of efficiently extracting coffee liquid by adding simple means.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the coffee liquid extraction device according to the present invention, Fig. 2 is a state diagram of injecting a concentrated coffee solution into the extraction tower (2) having the next connection order of the adjacent extraction tower (2), Figure 3 is a state diagram in which the extraction column ■ is disconnected and extraction operation is performed by connecting the extraction column ■ that is already on standby to □. Figure 4 is a state diagram in which the extraction column ■ is disconnected and the next connection order of the adjacent extraction column ■ is performed. Fig. 5 is a state diagram in which the coffee concentration solution is injected into the extraction tower (■) with a FIG. 7 is a list diagram illustrating the operating state of a plurality of extraction towers during extraction of liquid, and is a diagram already proposed by the applicant, and FIG. 7 is a configuration diagram of a conventional coffee liquid extraction apparatus. ■～■...Extraction tower 7...Tat water tank 8.53...
Pump 9...Injection main pipe 10...Discharge pipe
11...Extract liquid tank 12...Extraction pipe 1
3... Inlet lid 14... Outlet lid 15-51
... Valve 52 ... Concentrated solution extraction pipe

Claims (1)

[Claims] A predetermined number of series-connected extraction towers are grouped together to form an extraction train, and the water is drawn into the water tank through an injection main pipe connected to the hot water tank and an extraction pipe connected to each extraction tower. The solvent in the extraction column is injected into the first extraction column in the extraction series, and the concentration of the extract is increased sequentially as it passes through each extraction column, and the discharge pipe is removed from the final extraction column in the extraction series. In the coffee liquid extraction device that collects coffee liquid through A coffee liquid extraction device characterized in that it injects a coffee concentration solution of.