Tea extraction and centrifugation integrated equipment

Abstract

The utility model relates to the technical field of tea production line equipment, in particular to tea extraction and centrifugation integrated equipment. Tea extraction and centrifugation integrated equipment comprises a constant-temperature extraction mechanism, a disc type centrifugal machine and a negative pressure connecting structure, and the constant-temperature extraction mechanism and the disc type centrifugal machine are connected through the negative pressure connecting structure. According to the technical scheme, a negative pressure connecting structure is designed, a constant-temperature extraction mechanism and a disc type centrifugal machine are organically combined, so that extraction and centrifugation integrated equipment is formed, the two process steps are integrated in one equipment, continuous treatment can be achieved through the integrated design, the transfer time of tea from extraction to centrifugal separation is shortened, and the efficiency of tea extraction and centrifugal separation is improved. And the overall production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tea beverage production line equipment, in particular to an integrated tea extraction and centrifugation device. Background Technique

[0002] In recent years, with the rise of diet concepts such as health and naturalness, tea beverages have quickly won the favor of consumers and occupied a part of the beverage market with their rich varieties, mellow taste, convenient packaging, refreshing and stomach-warming functions. China's rich tea resources provide rich raw material supplies for the tea beverage industry. There are thousands of production enterprises in the Chinese tea beverage industry, which meet the needs of different groups with their rich products and innovative designs. In terms of the market, the tea beverage industry shows a diversified development trend. Traditional tea beverage products still dominate, but with the diversification of consumer tastes and the rise of functional beverages, the tea beverage industry is also constantly innovating products. According to the data released by the State Administration for Market Regulation, the sales volume of the Chinese tea beverage industry reached approximately 16 million tons in 2019, with a year-on-year growth of more than 8%. Bottled and canned tea beverages account for a relatively large market share, and the packaging forms of tea beverages are also constantly innovating, such as instant canned, PET bottled, glass bottled tea beverages, etc., which meet the needs of consumers for convenience, health, and fashion. The Chinese tea beverage industry shows a booming development momentum in terms of raw material supply, production and processing, product sales, etc. With the continuous increase in consumers' demand for healthy beverages, the tea beverage industry is expected to continue to maintain a steady growth trend in the future.

[0003] The tea beverage production line can mass-produce standardized tea beverage products through an automated or semi-automated production process. The tea beverage production line can be divided into several main steps: raw material preparation, extraction process, blending, filtration and clarification, homogenization, sterilization, filling and sealing. Among them, extraction is a key step in tea beverage production. By heating or soaking tea leaves, the effective components in the tea soup are extracted. The process parameters of extraction, such as temperature, time, and the ratio of tea leaves to water, have an important impact on the quality and taste of tea beverages.

[0004] For example, the Chinese authorized patent "An Environmentally Friendly Extraction Tank" with the publication number CN221332857U wraps a heat-conducting layer on the outer side wall of the extraction tank body, an electric heating wire is arranged between the tank body and the heat-conducting layer, and a rectangular through groove is penetrated through the lid of the tank body. The beneficial effect is to improve the heat source utilization rate, recycle tea leaves, and prevent environmental pollution, but it only involves the extraction function and cannot achieve negative pressure filtration and centrifugation, with a single function.

[0005] For example, in the Chinese authorized patent "A Disc Centrifuge Facilitating Slag Discharge" with the announcement number CN221183209U, a slag discharge mechanism is provided on one side of the rotating shaft, and discharge ports at different heights are set, dividing the drum into upper and lower regions, which greatly improves the working efficiency.

[0006] However, in the above patent, during the tea processing, extraction and centrifugal separation are still two independent steps, requiring two independent devices, namely a tea extraction device and a centrifugal device, which are connected by pipelines, occupying a large area and having low production efficiency. Content of the Utility Model

[0007] Aiming at the deficiencies existing in the above-mentioned prior art, the purpose of the present utility model is to provide a tea extraction and centrifugation integrated device.

[0008] To achieve the above purpose, the present utility model provides the following technical solutions:

[0009] A tea extraction and centrifugation integrated device includes a constant-temperature extraction mechanism, a disc centrifuge, and a negative-pressure connection structure. The constant-temperature extraction mechanism and the disc centrifuge are connected through the negative-pressure connection structure;

[0010] The constant-temperature extraction mechanism includes an extraction tank body, a stirring component, an electric heating device, a temperature measuring device, and a filtering component. The upper end of the extraction tank body is provided with a feed port. The stirring component is connected to a motor. The lower end of the extraction tank body is provided with a liquid outlet, and an electric valve is arranged at the liquid outlet;

[0011] The negative-pressure connection structure includes a connection tank body, a storage tank, and a spiral liquid cooling pipe. The storage tank is arranged in the inner cavity of the connection tank body. The spiral liquid cooling pipe is arranged in the storage tank. The storage tank includes a liquid inlet, a liquid outlet, and an inner negative-pressure port. The liquid inlet is connected to the inlet of the spiral liquid cooling pipe, and the outlet of the spiral liquid cooling pipe is connected to the liquid outlet;

[0012] The liquid inlet is connected to the bottom of the extraction tank body, the liquid outlet is connected to the centrifugal liquid inlet of the disc centrifuge. The connection tank body is provided with an outer negative-pressure port corresponding to the inner negative-pressure port. The inner negative-pressure port and the outer negative-pressure port are connected through a negative-pressure pipe, and the outer negative-pressure port is externally connected to a negative-pressure pump.

[0013] As a preference of the technical solution of the present application, a stirring port is further provided on the extraction tank body. The stirring component includes a stirring rod and a stirring piece. The stirring rod passes through the stirring port and is connected to the motor. The stirring piece is arranged on the stirring rod. The filtering component includes a first filter screen, and the first filter screen is arranged below the stirring rod.

[0014] As a preference of the technical solution of the present application, the extraction tank body includes a liquid outlet part extending into the connection tank body. The liquid outlet is arranged at the bottom of the liquid outlet part. A second filter screen is arranged above the liquid outlet of the liquid outlet part, and the mesh number of the second filter screen is larger than that of the first filter screen.

[0015] As a preference of the technical solution of the present application, a first connection ring is arranged at the connection between the connection tank body and the extraction tank body. The first connection ring is connected to an extraction installation kit connected to the extraction tank body, and the first connection ring and the extraction installation kit are connected by bolts;

[0016] A second connection ring is arranged at the connection between the connection tank body and the disc centrifuge. The second connection ring is connected to a centrifugal installation kit connected to the disc centrifuge, and the first connection ring and the centrifugal installation kit are connected by bolts.

[0017] As a preference of the technical solution of the present application, the diameter of the upper connection port of the connection tank body is the same as the outer diameter of the extraction tank body, and the outer diameter of the second connection ring is greater than 2 / 3 of the maximum outer diameter of the disc centrifuge.

[0018] As a preference of the technical solution of the present application, the stirring member is a rotating spiral rod connected to the stirring rod through a connecting rod, and the stirring member is a rotating spiral rod with a circular cross-section.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. By designing a negative pressure connection structure, the constant temperature extraction mechanism and the disc centrifuge are organically combined to form an integrated extraction and centrifugation device. Integrating the two process steps in one device, the integrated design can perform continuous processing, reducing the transfer time of tea from extraction to centrifugal separation and improving the overall production efficiency.

[0021] 2. The integrated design makes it easier to precisely control and monitor the entire process, reducing the exposure time of the material during the process from extraction to centrifugation, which can reduce the oxidation and volatilization of the active ingredients in the tea, thereby improving the quality of the final product.

[0022] 3. After the extraction is completed, the extraction tank is connected to the temporary storage tank. Under the action of negative pressure, the tea soup quickly passes through two filter screens with different mesh numbers. The first filter screen has large pores and the second filter screen has small pores, which can improve the filtration speed and is not easy to cause the filter screen to be blocked.

[0023] 4. The stirring blades on the traditional stirring rod are optimized into a spiral stirring member with a circular cross-section to protect the integrity of the tea as much as possible. Description of the Drawings

[0024] Other features, objects, and advantages of the present utility model will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0025] Figure 1 is a schematic structural diagram of the present utility model;

[0026] Figure 2 is a cross-sectional view of the present utility model.

[0027] In the figure:

[0028] 1, constant temperature extraction mechanism; 2, disc centrifuge; 3, negative pressure connection structure; 4, extraction tank body; 5, stirring assembly; 6, electric heating device; 7, temperature measuring device; 8, filtering assembly; 9, feed inlet; 10, motor; 11, liquid outlet; 12, electric valve; 13, connection tank body; 14, storage tank; 15, spiral liquid cooling pipe; 16, inner negative pressure port; 17, outer negative pressure port; 18, stirring port; 19, stirring member; 20, stirring rod; 21, first filter screen; 22, liquid outlet part; 23, second filter screen; 24, first connection ring; 25, extraction installation kit; 26, second connection ring; 27, centrifuge installation kit; 28, liquid inlet; 29, centrifuge discharge port; 30, centrifuge liquid inlet. Specific embodiments

[0029] In order to make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] During the tea processing process, extraction and centrifugal separation are still two independent steps, requiring two independent devices, namely tea extraction equipment and centrifugal equipment, which are connected by pipelines, occupying a large area and having low production efficiency. Moreover, the tea extraction equipment has the problems of slow filtration speed and blocked filter screen after extraction, resulting in continued extraction of the residual tea soup in the extraction tank, over-extraction of the tea soup, excessive tea polyphenols in the tea soup, bitter sensory taste, insufficient aroma, and an increased risk of defective tea beverages. The existing tea beverage extraction and centrifugal equipment cannot meet our requirements for tea beverage processing, affecting the quality of the tea beverage finished product, having low efficiency in tea beverage processing, and affecting production capacity.

[0031] Refer to Figures 1 to 2As shown in the figure, a tea extraction and centrifugation integrated device includes a constant-temperature extraction mechanism 1, a disc centrifuge 2, and a negative-pressure connection structure 3. The constant-temperature extraction mechanism 1 and the disc centrifuge 2 are connected through the negative-pressure connection structure 3. In the traditional mode where the original extraction device and centrifugation device work independently in a split form, by designing the negative-pressure connection structure 3, the constant-temperature extraction mechanism 1 and the disc centrifuge 2 are organically combined to form an extraction and centrifugation integrated device, integrating the two process steps in one device. The integrated design enables continuous processing, reduces the transfer time of tea from extraction to centrifugal separation, and improves the overall production efficiency. At the same time, the integrated design makes it easier to precisely control and monitor the entire process, reduces the exposure time of materials during the process from extraction to centrifugation, and can reduce the oxidation and volatilization of the effective components in the tea, thereby improving the quality of the final product.

[0032] The constant-temperature extraction mechanism 1 includes an extraction tank body 4, a stirring component 5, an electric heating device 6, a temperature measuring device 7, and a filtering component 8. The upper end of the extraction tank body 4 is provided with a feed inlet 9. The stirring component 5 is connected to a motor 10. The lower end of the extraction tank body 4 is provided with a liquid outlet 11, and an electric valve 12 is provided at the liquid outlet 11. When the constant-temperature extraction mechanism 1 is working, the temperature measuring device 7 real-time detects the temperature of the liquid in the extraction tank body 4. When the temperature is too low, it controls the electric heating device 6 to work for heating, so that the temperature of the liquid in the extraction tank body 4 rises to an appropriate temperature. Among them, the electric heating device 6 and the temperature measuring device 7 are both existing components. The electric heating device 6 can select an electric heating rod, and the temperature measuring device 7 can select a thermal resistance thermometer and be set on the inner wall of the extraction tank body 4. It should be noted that the horizontal height at which the temperature measuring device 7 is set is lower than the horizontal height of the lowest point of the stirring rod 20.

[0033] The negative-pressure connection structure 3 includes a connection tank body 13, a storage tank 14, and a spiral liquid cooling pipe 15. The storage tank 14 is arranged in the inner cavity of the connection tank body 13, and the spiral liquid cooling pipe 15 is arranged in the storage tank 14. The storage tank 14 includes a liquid inlet 28, a liquid outlet 11, and an internal negative-pressure port 16. The liquid inlet 28 is connected to the bottom of the extraction tank body 4. The liquid inlet 28 is connected to the inlet of the spiral liquid cooling pipe 15, and the outlet of the spiral liquid cooling pipe 15 is connected to the liquid outlet 11. A coolant is input between the storage tank 14 and the spiral liquid cooling pipe 15. The tea liquid flows through the pipeline of the spiral liquid cooling pipe 15. The storage tank 14 is correspondingly provided with a coolant inlet and a coolant outlet for connecting to an external liquid cooling device. At the same time, the corresponding connection tank body 13 is provided with holes corresponding to the coolant inlet and the coolant outlet for connecting and communicating with the external liquid cooling device. In the attached drawing, the coolant inlet, the coolant outlet, and the matching holes are not drawn, and the specific positions can be designed according to production requirements during actual production.

[0034] The liquid outlet 11 is connected to the centrifugal liquid inlet 30 of the disc centrifuge 2. The connecting tank body 13 is provided with an external negative pressure port 17 corresponding to the internal negative pressure port 16. The internal negative pressure port 16 and the external negative pressure port 17 are connected through a negative pressure pipe, and the external negative pressure port 17 is externally connected to a negative pressure pump.

[0035] The extraction tank body 4 is also provided with a stirring port 18. The stirring assembly 5 includes a stirring rod 20 and a stirring member 19. The stirring rod 20 passes through the stirring port 18 and is connected to the motor 10. The stirring member 19 is arranged on the stirring rod 20. The filtering assembly 8 includes a first filter screen 21, and the first filter screen 21 is arranged below the stirring rod 20.

[0036] The extraction tank body 4 includes a liquid outlet part 22 extending into the connecting tank body 13. The liquid outlet 11 is arranged at the bottom of the liquid outlet part 22. The liquid outlet part 22 is provided with a second filter screen 23 above the liquid outlet 11, and the mesh number of the second filter screen 23 is greater than that of the first filter screen 21.

[0037] A first connecting ring 24 is arranged at the connection between the connecting tank body 13 and the extraction tank body 4. The first connecting ring 24 is connected to the extraction installation kit 25 connected to the extraction tank body 4, and the first connecting ring 24 and the extraction installation kit 25 are connected by bolts.

[0038] A second connecting ring 26 is arranged at the connection between the connecting tank body 13 and the disc centrifuge 2. The second connecting ring 26 is connected to the centrifugal installation kit 27 connected to the disc centrifuge 2, and the first connecting ring 24 and the centrifugal installation kit 27 are connected by bolts.

[0039] The diameter of the upper connection port of the connecting tank body 13 is the same as the outer diameter of the extraction tank body 4. The outer diameter of the second connecting ring 26 is greater than 2 / 3 of the maximum outer diameter of the disc centrifuge 2, which improves the operation stability of the equipment.

[0040] The stirring member 19 is a rotating spiral rod connected to the stirring rod 20 through a connecting rod, and the stirring member 19 is a rotating spiral rod with a circular cross-section. Generally, stirring blades are arranged on an ordinary stirring rod 20. However, when the stirring blades are stirring, they will inevitably damage the tea leaves in the extraction tank body 4, causing the tea leaves to break. During the extraction process of the tea leaves, if the tea leaves are broken and damaged, the polyphenols inside them are more likely to contact with the oxygen in the air, thus accelerating the oxidation process, which may affect the flavor and color of the tea leaves, and will greatly change the extraction effect of the tea water. At the same time, the broken tea leaves may be more difficult to process in the subsequent treatment process. For example, the filtering and separation steps may require more time and effort.

[0041] Working principle:

[0042] A tea extraction and centrifugation integrated device combines the extraction and centrifugation functions in one machine. The raw materials are put into the constant-temperature extraction mechanism 1 for extraction. After the extraction is completed, the tea soup quickly passes through the first filter screen 21 and the second filter screen 23 with two different meshes from coarse to fine under the action of the negative pressure pump, which improves the filtration speed and is not easy to cause the filter screen to be blocked. Then it enters the storage tank 14 in the negative pressure connection structure 3. In the storage tank 14, the liquid enters the spiral liquid cooling pipe 15 and is cooled through the spiral liquid cooling pipe 15. After being cooled to below 10°C, it enters the disc centrifuge 2 for centrifugation. Finally, the tea soup extract is output from the centrifugal discharge port 29, reducing the floor area of the instrument and equipment, accelerating the filtration speed and quality, reducing the pipeline connection between equipment, simplifying the operation procedure of employees, facilitating quality control in the production process, and improving the production efficiency of tea drinks.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A tea extraction and centrifugation integrated device, characterized in that, It includes a constant-temperature extraction mechanism (1), a disc centrifuge (2), and a negative-pressure connection structure (3). The constant-temperature extraction mechanism (1) and the disc centrifuge (2) are connected through the negative-pressure connection structure (3). The constant-temperature extraction mechanism (1) includes an extraction tank body (4), a stirring assembly (5), an electric heating device (6), a temperature measuring device (7), and a filtering assembly (8). The upper end of the extraction tank body (4) is provided with a feed inlet (9). The stirring assembly (5) is connected to a motor (10). The lower end of the extraction tank body (4) is provided with a liquid outlet (11), and an electric valve (12) is arranged at the liquid outlet (11). The negative-pressure connection structure (3) includes a connection tank body (13), a temporary storage tank (14), and a spiral liquid cooling pipe (15). The temporary storage tank (14) is arranged in the inner cavity of the connection tank body (13). The spiral liquid cooling pipe (15) is arranged in the temporary storage tank (14). The temporary storage tank (14) includes a liquid inlet (28), a liquid outlet (11), and an inner negative-pressure port (16). The liquid inlet (28) is connected to the inlet of the spiral liquid cooling pipe (15), and the outlet of the spiral liquid cooling pipe (15) is connected to the liquid outlet (11). The liquid inlet (28) is connected to the bottom of the extraction tank body (4). The liquid outlet (11) is connected to the centrifugal liquid inlet (30) of the disc centrifuge (2). The connection tank body (13) is provided with an outer negative-pressure port (17) corresponding to the inner negative-pressure port (16). The inner negative-pressure port (16) and the outer negative-pressure port (17) are connected through a negative-pressure pipe, and the outer negative-pressure port (17) is externally connected to a negative-pressure pump.

2. The tea extraction and centrifugation integrated device according to claim 1, characterized in that, The extraction tank body (4) is also provided with a stirring port (18). The stirring assembly (5) includes a stirring rod (20) and a stirring member (19). The stirring rod (20) passes through the stirring port (18) and is connected to the motor (10). The stirring member (19) is arranged on the stirring rod (20). The filtering assembly (8) includes a first filter screen (21), and the first filter screen (21) is arranged below the stirring rod (20).

3. The tea extraction and centrifugation integrated device according to claim 2, wherein The extraction tank body (4) includes a liquid outlet part (22) extending into the connection tank body (13). The liquid outlet (11) is arranged at the bottom of the liquid outlet part (22). A second filter screen (23) is arranged above the liquid outlet (11) in the liquid outlet part (22). The mesh number of the second filter screen (23) is larger than that of the first filter screen (21).

4. A tea extraction and centrifugation integrated device according to claim 3, characterized in that, A first connection ring (24) is arranged at the connection between the connection tank body (13) and the extraction tank body (4). The first connection ring (24) is connected to an extraction installation kit (25) connected to the extraction tank body (4). The first connection ring (24) and the extraction installation kit (25) are connected by bolts. A second connecting ring (26) is provided at the connection between the connecting tank body (13) and the disc centrifuge (2). The second connecting ring (26) is connected to a centrifugal mounting kit (27) connected to the disc centrifuge (2). The first connecting ring (24) and the centrifugal mounting kit (27) are connected by bolts.

5. The tea extraction and centrifugation integrated device according to claim 4, wherein The diameter of the upper connection port of the connecting tank body (13) is the same as the outer diameter of the extraction tank body (4). The outer diameter of the second connecting ring (26) is greater than 2 / 3 of the maximum outer diameter of the disc centrifuge (2).

6. The integrated tea extraction and centrifugation device according to claim 2, wherein The stirring member (19) is a rotating spiral rod connected to the stirring rod (20) through a connecting rod, and the stirring member (19) is a rotating spiral rod with a circular cross-section.

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