Low-temperature vacuum concentrator for lycium ruthenicum murr.

Abstract

The utility model provides a kind of low-temperature vacuum concentrator of black medlar, it relates to black medlar processing technical field, the low-temperature vacuum concentrator of this black medlar, including bottom plate, the upper surface of bottom plate is equipped with shell and mounting bracket, the inside of shell is equipped with concentration jar, the outside of concentration jar is equipped with heating jar for heating it, the inside of shell is located in heating jar, the mounting bracket is equipped with the cover for being used to close concentration jar, the inside of cover is also rotationally installed with stirring mechanism;Electric telescopic link drives cover vertical lifting, realizes one-key opening and closing and airtight seal, reduces artificial intervention intensity, eliminates the risk of leakage caused by operation failure, set scraper and stirring blade with through hole on connecting shaft, and scraper rotates closely concentration jar inner wall and bottom, prevent local overheating, and stirring blade is distributed in multiple groups, and cooperates with scraper to break temperature stratification, ensure that original pulp is uniformly heated as a whole, improve concentration efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of black goji berry processing technology, specifically a low-temperature vacuum concentrator for black goji berries. Background Technology

[0002] Black goji berries, also known as "purple gold," are a unique medicinal and edible plant resource native to the northwestern plateau region of my country. They are rich in various bioactive substances, especially anthocyanins, primarily delphinidin-3-O-glucoside, with levels far exceeding those found in common anthocyanin-rich foods such as blueberries and purple cabbage. Studies have shown that black goji berries possess multiple physiological functions, including antioxidant, anti-aging, immune-regulating, and vision-improving effects, and have broad application prospects in the development of health foods, cosmetics, and pharmaceutical intermediates.

[0003] However, black goji berries have a high water content of 70%-80%, and their active ingredients are highly susceptible to heat degradation. Traditional concentration processes generally employ atmospheric pressure high-temperature evaporation or single-effect / multi-effect evaporators for dehydration. While these methods are energy-efficient and simple to operate, they suffer from serious damage to heat-sensitive components. Furthermore, prolonged high temperatures can exacerbate the Maillard reaction, leading to non-enzymatic browning, which severely affects the product's color and flavor quality. Utility Model Content

[0004] To address the problem of insufficient concentration of black goji berry pulp in the prior art, this invention proposes a low-temperature vacuum concentrator for black goji berries.

[0005] The technical solution of this utility model is as follows: the black goji berry low-temperature vacuum concentrator includes a base plate, a shell and a mounting frame are installed on the upper surface of the base plate, a concentration tank is installed inside the shell, a heating tank for heating the concentration tank is sleeved on the outside of the concentration tank, the heating tank is located inside the shell, a cover for sealing the concentration tank is installed on the mounting frame, and a stirring mechanism is rotatably installed inside the cover. The stirring mechanism includes a connecting shaft, a motor for driving the shaft is fixedly installed at the top of the connecting shaft, the bottom of the connecting shaft extends downward into the interior of the concentration tank, and multiple scrapers and multiple sets of stirring blades are fixedly installed on the outer surface of the connecting shaft. The edges of the scrapers are in contact with the inner wall and bottom wall of the concentration tank.

[0006] A further technical solution of this utility model is that the scraper has multiple through holes inside, and the number of stirring blades in each group is multiple.

[0007] A further technical solution of this utility model is that a plurality of connecting plates are fixedly installed on the outer surface of the shell, and a support rod is fixedly installed on the bottom of the connecting plate, and the support rod is fixedly installed on the base plate.

[0008] A further technical solution of this utility model is that the bottom of the heating tank is provided with a protrusion, the protrusion penetrates the shell and extends downward to the outside of the shell, and a heater for heating the water inside the heating tank is installed inside the protrusion.

[0009] A further technical solution of this utility model is that a water inlet pipe is installed on the top of the heating tank, the water inlet pipe passes through the shell and extends upward to the outside of the shell, and a drain pipe is provided at the bottom of the heating tank, the drain pipe passes through the shell and extends downward to the outside of the shell.

[0010] A further technical solution of this utility model is that a discharge pipe for discharging concentrated black goji berry pulp is installed in the middle of the bottom of the concentration tank. The discharge pipe passes through the heating tank and the shell in sequence and extends to the outside of the shell.

[0011] A further technical solution of this utility model is that valves are provided inside the discharge pipe, water inlet pipe and drain pipe.

[0012] A further technical solution of this utility model is that the mounting frame includes multiple electric telescopic rods fixedly mounted on the base plate, a mounting plate is fixedly mounted on the top of the multiple electric telescopic rods, and a mounting seat for mounting the cover is fixedly mounted on the bottom of the mounting plate.

[0013] A further technical solution of this utility model is that the cover is provided with an observation window and multiple quick-connect interfaces. The observation window is used to observe the concentration of black goji berry pulp inside the concentration tank, and the quick-connect interfaces are used to connect equipment such as a vacuum pump to facilitate vacuuming of the concentration tank and removal of water vapor.

[0014] The advantages of this invention are as follows: By using a water bath indirect heating method where the heating tank surrounds the concentration tank, combined with a vacuum pump connected by quick-connect interface 62, the pressure inside the tank is reduced to 0.08-0.096MPa, lowering the boiling point to 40-60℃, thus avoiding the damage of black goji berry anthocyanins from a thermodynamic perspective; the electric telescopic rod drives the lid to rise and fall vertically, achieving one-button opening and closing and airtight sealing, reducing the intensity of manual intervention and eliminating the risk of leakage due to operational errors; a scraper and stirring blade with through holes are set on the connecting shaft, and the scraper rotates close to the inner wall and bottom of the concentration tank to prevent local overheating; multiple sets of stirring blades are distributed, working together with the scraper to break up temperature stratification, ensuring that the raw pulp is heated evenly throughout, improving concentration efficiency and product quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the shell structure in a specific embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the stirring mechanism in a specific embodiment of this utility model.

[0020] In the picture: 1. Base plate; 2. Shell; 21. Connecting plate; 22. Support rod; 3. Mounting bracket; 31. Electric telescopic pole; 32. Mounting plate; 33. Mounting base; 4. Concentrator; 41. Discharge pipe; 5. Heating tank; 51. Protrusion; 52. Heater; 53. Water inlet pipe; 54. Drain pipe; 6. Cover; 61. Observation window; 62. Quick-connect interface; 7. Stirring mechanism; 71. Connecting shaft; 72. Motor; 73. Scraper; 731. Through hole; 74. Stirring blade. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-4As shown, a low-temperature vacuum concentrator for black goji berries includes a base plate 1, a housing 2 and a mounting frame 3 mounted on the upper surface of the base plate 1, a concentration tank 4 installed inside the housing 2, and a heating tank 5 for heating the concentration tank 4, located inside the housing 2. A cover 6 for sealing the concentration tank 5 is mounted on the mounting frame 3, and a stirring mechanism 7 is rotatably installed inside the cover 6. Black goji berry pulp is added to the concentration tank 4, and then water is added to the heating tank 5 to heat the concentration tank 4. At the same time, the stirring mechanism 7 is activated to stir the black goji berry pulp inside the concentration tank 4 until concentration is complete.

[0023] Multiple connecting plates 21 are fixedly installed on the outer surface of the shell 2. Support rods 22 are fixedly installed on the bottom of the connecting plates 21 and are fixedly installed on the base plate 1. The bottom of the heating tank 5 is provided with a protrusion 51, which penetrates the shell 2 and extends downward to the outside of the shell 2. A heater 52 for heating the water inside the heating tank 5 is installed inside the protrusion 51. A water inlet pipe 53 is installed on the top of the heating tank 5, which penetrates the shell 2 and extends upward to the outside of the shell 2. A drain pipe 54 is provided at the bottom of the heating tank 5, which penetrates the shell 2 and extends downward to the outside of the shell 2. A discharge pipe 41 for discharging the concentrated black goji berry pulp is installed in the middle of the bottom of the concentration tank 4. The discharge pipe 41 passes through the heating tank 5 and the shell 2 in sequence and extends to the outside of the shell 2. Valves are provided inside the discharge pipe 41, the water inlet pipe 53 and the drain pipe 54.

[0024] The mounting frame 3 includes multiple electric telescopic rods 31 fixedly mounted on the base plate 1. A mounting plate 32 is fixedly mounted on the top of the multiple electric telescopic rods 31. A mounting base 33 for mounting the cover 6 is fixedly mounted on the bottom of the mounting plate 32. The stirring mechanism 7 is installed inside the mounting base 33 and the cover 6. The cover 6 is provided with an observation window 61 and multiple quick-connect interfaces 62. The observation window 61 is used to observe the concentration of black goji berry pulp inside the concentration tank 4. The quick-connect interfaces 62 are used to connect equipment such as a vacuum pump to facilitate vacuuming of the concentration tank 4 and the removal of water vapor. The extension and retraction of the electric telescopic rods 31 not only makes it easy for users to open the cover 6, but also makes it easy for users to connect and fix the cover 6 to the concentration tank 4 through the electric telescopic rods 31.

[0025] The stirring mechanism 7 includes a connecting shaft 71 rotatably mounted inside the mounting base 33 and the cover 6. A motor 72 for driving the connecting shaft 71 is fixedly mounted on the top of the connecting shaft 71. The motor 72 is fixedly mounted on the mounting plate 32. The bottom of the connecting shaft 71 extends downward into the interior of the concentration tank 4. Multiple scrapers 73 and multiple sets of stirring blades 74 are fixedly mounted on the outer surface of the connecting shaft 71. The edges of the scrapers 73 are in contact with the inner wall and bottom wall of the concentration tank 4. Multiple through holes 731 are opened inside the scrapers 73 so that the scrapers 73 can clean the inner wall and bottom wall of the concentration tank 4, and prevent the black goji berry pulp adhering to the inner wall and bottom wall of the concentration tank 4 from overheating and causing anthocyanin decomposition. There are multiple stirring blades in each set. Under the combined action of the scrapers 73 and stirring blades 74, the black goji berry pulp in the concentration tank 4 can be heated evenly.

[0026] Working principle: The electric telescopic rod 31 retracts, lifting the cover 6 and injecting black goji berry puree (≤70% volume) into the concentration tank 4. The electric telescopic rod 31 then presses down on the cover 6 to seal the tank opening. A vacuum pump is connected to the condenser via a quick-connect fitting 62. The vacuum pump reduces the pressure inside the concentration tank 4 to 0.08-0.096 MPa (boiling point 40-60℃) to achieve low-temperature protection 7. Water is injected into the heating tank 5 via the water inlet pipe 53. The heater 52 inside the protrusion 51 is activated for indirect water bath heating. Heat is evenly transferred to the concentration tank 5. The motor 72 drives the connecting shaft 71 to rotate, moving the scraper... 73 The rotating blades closely adhere to the inner wall and bottom of the concentration tank 4 to clean the adhering substances and prevent anthocyanin from overheating and decomposing. At the same time, multiple sets of stirring blades 74 are distributed to break up temperature stratification and promote homogeneous heating of the pulp. The operator monitors the concentration changes through the observation window 61 and dynamically adjusts the vacuum degree, heating power and stirring speed. After the target is reached, the heater 52, motor 72 and vacuum pump are turned off, air is introduced to release the vacuum, the cover is opened through the electric telescopic rod 31, the valve of the discharge pipe 41 is opened to discharge the concentrated paste, the tank is rinsed with clean water, the inner wall is cleaned using the self-cleaning function of the scraper 73, and the drain pipe 54 is opened to empty the water in the heating tank 5.

[0027] In this invention, a water bath indirect heating method is used to surround the concentration tank 4 with a heating tank 5. Combined with a vacuum pump connected by a quick-connect interface 62, the pressure inside the tank is reduced to 0.08-0.096 MPa, lowering the boiling point to 40-60℃. This avoids the damage of high temperature to the anthocyanins of black goji berries from a thermodynamic perspective. The electric telescopic rod 31 drives the cover 6 to rise and fall vertically, achieving one-button opening and closing and airtight sealing, reducing the intensity of manual intervention and eliminating the risk of leakage due to operational errors. A scraper 73 with through holes 731 and a stirring blade 74 are provided on the connecting shaft 71. The scraper 73 rotates close to the inner wall and bottom of the concentration tank 4 to prevent local overheating. Multiple sets of stirring blades 74 are distributed to work together with the scraper 73 to break up temperature stratification, ensuring that the raw pulp is heated evenly, improving concentration efficiency and product quality.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A low-temperature vacuum concentrator for black goji berries, characterized in that, Includes a base plate (1), on the upper surface of which a shell (2) and a mounting bracket (3) are mounted. Inside the shell (2) is a concentration tank (4), and outside the concentration tank (4) is a heating tank (5) for heating it. The heating tank (5) is located inside the shell (2). On the mounting bracket (3) is a cover (6) for sealing the heating tank (5). Inside the cover (6) is a stirring mechanism (7) that is rotatably mounted. The stirring mechanism (7) includes a connecting shaft (71), a motor (72) for driving the connecting shaft (71) is fixedly installed at the top of the connecting shaft (71), the bottom of the connecting shaft (71) extends downward into the interior of the concentration tank (4), and multiple scrapers (73) and multiple sets of stirring blades (74) are fixedly installed on the outer surface of the connecting shaft (71). The edges of the scrapers (73) are in contact with the inner wall and bottom wall of the concentration tank (4).

2. The low-temperature vacuum concentrator for black goji berries according to claim 1, characterized in that, The scraper (73) has multiple through holes (731) inside, and each set of stirring blades (74) has multiple blades.

3. The low-temperature vacuum concentrator for black goji berries according to claim 1, characterized in that, Multiple connecting plates (21) are fixedly installed on the outer surface of the housing (2), and a support rod (22) is fixedly installed on the bottom of the connecting plate (21). The support rod (22) is fixedly installed on the base plate (1).

4. The low-temperature vacuum concentrator for black goji berries according to claim 1, characterized in that, The bottom of the heating tank (5) is provided with a protrusion (51), which penetrates the shell (2) and extends downward to the outside of the shell (2). A heater (52) for heating the water inside the heating tank (5) is installed inside the protrusion (51).

5. A low-temperature vacuum concentrator for black goji berries according to claim 4, characterized in that, The top of the heating tank (5) is equipped with a water inlet pipe (53), which penetrates the shell (2) and extends upward to the outside of the shell (2). The bottom of the heating tank (5) is provided with a drain pipe (54), which penetrates the shell (2) and extends downward to the outside of the shell (2).

6. A low-temperature vacuum concentrator for black goji berries according to claim 5, characterized in that, The bottom of the concentration tank (4) is equipped with a discharge pipe (41) for discharging the concentrated black goji berry pulp. The discharge pipe (41) passes through the heating tank (5) and the shell (2) in sequence and extends to the outside of the shell (2).

7. A low-temperature vacuum concentrator for black goji berries according to claim 6, characterized in that, Valves are installed inside the discharge pipe (41), water supply pipe (53), and drain pipe (54).

8. A low-temperature vacuum concentrator for black goji berries according to claim 1, characterized in that, The mounting frame (3) includes multiple electric telescopic rods (31) fixedly mounted on the base plate (1), and a mounting plate (32) is fixedly mounted on the top of the multiple electric telescopic rods (31). A mounting seat (33) for mounting the cover (6) is fixedly mounted on the bottom of the mounting plate (32).

9. A low-temperature vacuum concentrator for black goji berries according to claim 1, characterized in that, The cover (6) is provided with an observation window (61) and multiple quick-connect ports (62). The observation window (61) is used to observe the concentration of black goji berry pulp inside the concentration tank (4). The quick-connect ports (62) are used to connect a vacuum pump to facilitate vacuuming of the concentration tank (4) and the removal of water vapor.

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