JP3058301U - Extraction equipment for coffee, tea or their substitutes - Google Patents

Abstract

(57) [Summary] [PROBLEMS] An extraction device which can be used regardless of the length of the extraction work time, can quickly extract an extracted product liquid, and can be extracted in a state completely separated from a raw material. The technical problem was to develop a device for extracting coffee or the like that can be configured by making some improvements to existing equipment and that can be made maintenance-free. SOLUTION: A wire mesh 1 constituting an extraction product liquid take-out section 12
4 and the surface of the wire mesh 11 provided on the inner upper surface of the bottom cover plate 3 are positioned so as to face each other in close contact with each other, so that the outflow space s of the extracted product liquid take-out unit 12 and the inside of the bottom cover plate 3 The space is connected to the space, and an extraction product liquid take-out path is formed from a position above the upper limit of the deposition of the raw material material A to the drain port 9 provided in the bottom cover plate 3. Take out quickly and raw material A
Can be taken out in a completely separated state.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an extraction device for green tea, oolong tea, barley tea, and other teas, as well as coffee and beverage chemicals.

[0002]

[Background of the invention]

 Conventionally, when producing beverage products such as tea, raw materials are put into an extraction tank generally called a kneader or an extraction tank in the form of a tower tank, and heated extraction water is injected here. In this way, the raw material and the extraction water are brought into contact with each other, and the excretion of the raw material is leached into the extraction water.

[0003] Of these methods, as an extraction method for coffee or the like, the extraction product liquid is often taken from below in a tower-shaped tank as described above. Since this method is time-consuming and cannot be applied to black tea or the like, which requires a short contact to complete the extraction, this type of device could only be used as a coffee machine.

Accordingly, the present applicant has proposed an extraction method which can be used irrespective of the length of the extraction operation time, and which can quickly extract the extracted product liquid and can extract it in a state completely separated from the raw material. The inventor of the method and apparatus has already been registered as Patent No. 2591960 "Method and apparatus for extracting coffee, tea or their substitutes".

However, there is room for some improvement in the following points with respect to the actual machine embodying the above invention. First, when trying to apply the invention to existing equipment, it became necessary to increase the number of pipes for extraction on the side of the extraction tank. In addition, when tea leaves or the like adhered between the outer surface of the filtration network attached to the inner wall of the extraction tank at multiple locations on the inner wall and the inner wall of the extraction tank, it was difficult to control the cleaning.

Therefore, on the premise that the above-mentioned invention is used, a study for improving the above-mentioned point is made mainly by the patentees, and is separately described in Utility Model Registration No. 3041689, “Beverage Liquid Extraction”. Device ". In this invention, as shown in FIG. 8, the outflow space s ', which is the lower outside space of the wire mesh 14', is communicated with the bottom cover plate 3 'via the wire mesh 11'. Specifically, a vertically long strip-shaped wire net 14 'is stretched with an outflow space s' between the inner wall of the cylindrical portion of the extraction tank 2 'and a lower support frame is provided below the wire net 14'. Further, a partition packing is provided at a lower end portion of the lower support frame, and the wire mesh 14 'is interposed between the lower support frame and the partition packing when the bottom cover plate 3' is closed. ′ Of the wire mesh 11 ′.

However, the above-described device has the following problems due to its configuration. That is, since the bottom lid flange 3a 'projects inward from the tank flange 2a' in contact with the bottom lid flange 3a ', the outlet space s' between the wire mesh 14 'and the inner wall of the extraction tank 2' is straightened. If an attempt is made to communicate with the inside of the bottom cover plate 3 ', the bottom cover flange 3a' becomes an obstacle, which impedes the flow of the extracted product liquid L2. For this reason, a lower support frame is provided below the wire mesh 14 'in order to secure a space for the extracted product liquid L2 to flow away from the bottom lid flange 3a', and a partition provided on the lower support frame. By packing, the outflow space s' and the deposition space of the raw material A on the wire mesh 11 'are separated to prevent the raw material A from flowing into the outflow space s'. Since the bottom lid flange 3a 'protrudes inward from the tank flange 2a' in this manner, the configuration is unnecessarily complicated, and the lower support frame and the partition packing are indispensable. It is a member. In addition, the partition packing deteriorates over time, so periodic replacement is required.

[0008]

[Technical issues that we attempted to develop]

 The present invention has been made in view of such a background, and can be used regardless of the length of the extraction work time.The extraction product liquid can be quickly taken out and completely separated from the raw material. A new coffee, tea or substitute extractor that can be constructed by making a slight improvement to existing equipment, and that can be made maintenance-free. An attempt was made to develop

[0009]

[Means for Solving the Problems]

 That is, the apparatus for extracting coffee, tea, or their substitutes according to claim 1 includes a filtering member at one or more locations on at least one side of the extraction tank, the filtering member extending from the deposition area of the raw material material to the upper limit of the accumulation. The extraction device liquid extraction section is provided, the raw material and the extraction water are supplied into the extraction tank, and the extraction product liquid obtained by extracting the extract of the raw material is extracted from the extraction product liquid extraction section. By positioning the bottom of the wire mesh forming the product liquid take-out section and the surface of the wire mesh provided on the inner upper surface of the bottom cover plate in close contact with each other, the outflow space of the extracted product liquid take-out section and the bottom cover The inner space of the plate is connected to form an extraction product liquid take-out path extending from a position above the upper limit of the deposition of the raw material to a drain port provided in the bottom cover plate. According to the present invention, an extraction device that can quickly take out an extracted product liquid and that can be taken out in a state completely separated from the raw material can be used without providing a pipe for drawing out. Can be configured.

[0010] In addition to the above requirements, the apparatus for extracting coffee, tea or their substitutes according to claim 2, wherein the inner diameter of the tank flange and the inner diameter of the bottom lid flange are the same. The feature is that the inner wall is flush with the bottom cover plate in a closed state. According to this invention, the outflow space between the wire mesh and the inner wall of the extraction tank can be communicated straight to the bottom cover plate, so that the structure is not complicated, and the number of parts can be reduced. The problem is solved by the invention described in each of the claims.

[0011]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the drawings. The reference numeral 1 in the drawing denotes the extraction device of the present invention, and the extraction tank 2 is a main member. The extraction tank 2 is a substantially cylindrical can body having an opening at a lower portion as shown in FIG. 5 and a tank flange 2a formed over the entire outer peripheral portion of the opening. The peripheral portion is formed by forming a concave portion 2b by reducing the thickness. A thermometer mounting port 17 is provided at an appropriate position around the lower part of the extraction tank 2 as shown in FIG.

On the other hand, regarding the various members above the extraction tank 2, first, a plurality of preliminary injection ports 20 are provided at the upper part, which deflects the lower discharge ports toward the inner wall side of the extraction tank 2. And has a firing prevention structure. Further, a water supply nozzle 21 for the extraction water L1 is provided at the center of the top of the extraction tank 2, and a washing port 22 is provided adjacent thereto. Further, an inspection window 24 and a manhole 25 are provided as accessories.

A bottom cover plate 3 is provided below the extraction tank 2. The bottom cover plate 3 is supported by an arm 5 rotatably mounted on a hinge 4, and a slider of a cover plate opening / closing cylinder 6 acts on the arm 5 to open and close the bottom cover plate 3. I do. The bottom cover plate 3 is kept closed by a clamp unit 7. The clamp unit 7 is operated by a clamp cylinder 8 to maintain or release the clamped state.

The bottom cover plate 3 has a container shape with a concave inside, and as shown in FIG. 5, a bottom cover flange 3a having substantially the same shape as the tank flange 2a is provided over the entire outer peripheral portion thereof. Then, a concave portion 3b is formed in the inner peripheral portion of the bottom lid flange 3a by reducing the thickness. Further, an appropriate groove is formed on the upper surface of the bottom lid flange 3a, and a packing 3c is attached thereto. A drain port 9 is provided at the center of the bottom cover plate 3, and the extracted product liquid L2 in the extraction tank 2 is taken out. Of course, depending on the usage, it is also possible to exclude waste liquid etc. from here.

In the recess 3 b on the inner upper surface of the bottom cover plate 3, a punching metal 10 having a load resistance capable of supporting the weight of the raw material A or the like in the extraction tank 2 is supported, and, for example, on the upper surface thereof, A sufficiently small wire mesh 11 of about 80 mesh is stretched. Further, in order to stir the raw material material A and the extraction water L1, an appropriate gas blowing section or the like may be provided near the wire mesh 11.

Here, the extracted product extracting section 12, which is a characteristic configuration of the present invention, will be described. The extracted product take-out sections 12 are provided, for example, at four locations on the side surface slightly lower than the extraction tank 2. Specifically, the outflow space s is defined by a punching metal 13 projecting inward in a rectangular shape from the inner wall slightly lower than the bottom of the extraction tank 2 to the lower end thereof. The wire mesh 14 is stretched so as to cover the wire. The punching metal 13 and the wire mesh 14 are arranged horizontally with respect to the inner wall of the extraction tank 2, and the upper and lower ends thereof are bent toward the inner wall and fixed thereto. In particular, the lower end portion is fixed while fitted into the concave portion 2b of the tank flange 2a.

With such a configuration, the outflow space s and the inner space of the bottom cover plate 3 are connected to each other when the bottom cover plate 3 is closed and at the time of extraction, and the bottom cover 3 is closed. The extraction product liquid L2 can be taken out from the drain port 9 provided in the plate 3.

The tea and the like extraction device 1 of the present invention has the specific structure as described above, and extracts coffee, tea or their substitutes as described below. First, at the start of the operation, the closed state of the bottom cover plate 3 is confirmed, and the closed state of the drain port 9 is confirmed. Then, the upper manhole 25 is opened, and the raw material A is introduced from here. At this time, the input amount can be appropriately set depending on the capacity of the extraction tank 2, but in most cases, the input amount is appropriately set within a range of several tens kg to 1 t or more centered on several hundred kg.

At the time of this introduction, the nitrogen gas N _{2 and the} like can be supplied in advance into the extraction tank 2 so that the extraction tank 2 is filled with the nitrogen gas N _{2 and the} like. This is one of the desirable measures to prevent quality deterioration.

Next, the extraction water L 1 is supplied from the water supply nozzle 21 into the extraction tank 2, and is discharged in a spray form as an example. In this embodiment, since no heating device is provided in the extraction tank 2, it is assumed that the extraction water L1 supplies hot water heated to a temperature convenient for extracting the extract.

When the extraction water L1 is supplied in this way, the extraction water L1 and the raw material A react with each other to extract the extract in the raw material A, and an extracted product liquid L2 is obtained.

When the raw material A and the extraction water L1 are charged into the water injection tank 2 as described above, as another method, first, the extraction water L1 is first supplied into the water injection tank 2, Alternatively, the extraction tank 2 may be filled with nitrogen gas N ₂ or the like to perform deaeration, and then the raw material A may be charged. Also, when an appropriate gas blowing section or the like is installed as described above, nitrogen gas N ₂ or the like springs up from the entire bottom surface of the extraction tank 2, and the gas flow stirs the raw material A and the extraction water L 1. be able to.

After a certain time has passed in this way, a valve (not shown) provided at the end of the drain port 9 is opened, and the extracted product liquid L2 is taken out. That is, the liquid from which the extract has already been extracted to become the extracted product liquid L2 flows out between the wire net 14 and the punching metal 13 of the extracted product liquid take-out section 12 and reaches the outflow space s, from which the punching metal 10 Then, it passes through the wire mesh 11, enters the bottom cover plate 3, and is discharged from the drain port 9. As described above, when the extracted product liquid L2 is discharged to the outside, the extracted product liquid L2 is smoothly discharged without being hindered by the raw material material A accumulated in the lower part of the extraction tank 2.

After the extraction product liquid L2 has been completely removed in this way, the bottom cover plate 3 is opened in order to remove the raw material A, and the bottom cover plate 3 is deposited on the wire net 11 in the bottom cover plate 3. The extracted raw material A is dropped downward and collected and discarded as appropriate. After that, when the inside of the extraction tank 2 is further washed, for example, the washing liquid L3 is sprayed from the washing port 22 in a shower shape, and the washing is performed.

[0025]

[Other embodiments]

 Although the present invention is based on the above-described embodiment, the following embodiments can be adopted based on the technical idea of the present invention. First, the horizontal portion of the wire mesh 14 and the perforated metal 13 (meaning the surface facing the wire mesh 11 and the perforated metal 10) in the extraction product liquid take-out section 12 can be made coarser than the other portions. In this case, even if the raw material A adheres between the inner wall of the extraction tank 2 and the wire netting 14 and the punching metal 13, the raw material A easily flows down from the stitch together with the cleaning liquid. Cleaning can be performed easily.

The vertical portions of the wire mesh 14 and the punching metal 13 in the extraction product liquid take-out section 12 do not necessarily have to be water-permeable from the upper end to the lower end. For example, as shown in FIG. In the punching metal 13, a hole is not drilled in the portion where the raw material A is deposited, so that this portion is impermeable to water. This portion may be made impermeable so that no holes are formed.

[0027]

[Effect of the invention]

 According to the present invention, an extraction apparatus which can be used regardless of the length of the extraction operation time, can quickly extract the extracted product liquid L2, and can be extracted in a state of being completely separated from the raw material A. 1 can be constructed by making some improvements to existing equipment, and can provide a new coffee, tea or substitute device 1 for these substitutes, which can be maintenance-free. .

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a use state of the extraction device of the present invention.

FIG. 2 is a vertical sectional side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a bottom view of the same.

FIG. 5 is a cutaway perspective view showing an extraction tank.

FIG. 6 is an enlarged vertical sectional side view showing an extraction product liquid take-out section.

FIG. 7 is a longitudinal sectional side view showing another embodiment of the extracted product liquid take-out section in an enlarged manner.

FIG. 8 is an enlarged vertical sectional side view showing an extraction product liquid take-out part in the prior application.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 extraction device 2 extraction tank 2a tank flange 2b recess 3 bottom cover plate 3a bottom cover flange 3b recess 3c packing 4 hinge 5 arm 6 cover plate opening / closing cylinder 7 clamp unit 8 clamp cylinder 9 drain port 10 punching metal 11 wire mesh 12 extraction product liquid extraction portion 13 a punching metal 14 wire mesh 17 thermometer installation opening 20 pre inlet 21 the water supply nozzle 22 cleaning port 24 inspection inspection window 25 manholes A raw material L1 extraction water L2 extract product liquid L3 washing liquid s flowing out space N ₂ nitrogen gas

Claims (2)

[Utility model registration claims] At least one or more of the side surfaces of an extraction tank are provided with an extraction product liquid take-out section having a filter member extending from a deposition area of a raw material to a level higher than a deposition upper limit. And extraction water,
In the apparatus for extracting the extracted product liquid from which the extract of the raw material is extracted from the extracted product liquid take-out section, the bottom surface of the wire mesh constituting the extracted product liquid take-out section, and the surface of the wire mesh provided on the inner top surface of the bottom cover plate. Are placed in close contact with each other, so that the outflow space of the extracted product liquid take-out section and the inner space of the bottom cover plate are connected to each other, and the bottom cover plate is positioned from a position above the upper limit of the raw material deposition. An extraction device for coffee, tea, or their substitutes, wherein an extraction product liquid take-out path is formed toward a drain port provided in the apparatus. 2. The inner diameter of the tank flange and the inner diameter of the bottom lid flange are the same, and these inner walls are flush with each other when the bottom lid plate is closed. Item 5. An apparatus for extracting coffee, tea or substitutes thereof according to Item 1.