Fresh chaya drying and juice extracting device

Abstract

The utility model provides a kind of fresh grassfruit drying and extracting dew device, comprising: drying box, inside is equipped with the accommodation space for fresh grassfruit drying and can produce containing fragrance steam;Auxiliary box is connected with drying box by connecting pipeline and is used to condense and purify containing fragrance steam.The utility model can synchronously complete the continuous production of grassfruit drying and high-purity grassfruit pure dew, and the device improves the utilization value of grassfruit and improves economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing equipment technology, specifically to a device for drying and extracting fresh cardamom. Background Technology

[0002] Amomum tsao-ko is a major medicinal and edible herb, with its edible use exceeding its medicinal use. Drying is a crucial step in the industrial production of amomum tsao-ko. Dried amomum tsao-ko has a low moisture content, a high concentration of soluble substances, an extended shelf life, reduces waste caused by mold and other quality degradation, facilitates transportation and storage, and enables year-round supply. Currently, amomum tsao-ko processing primarily uses hot air drying or natural sun-drying. Natural sun-drying results in inconsistent quality of dried amomum tsao-ko, while during high-temperature heating, volatile flavor components (such as eucalyptol and α-terpineol, terpenoids) easily dissipate with the steam. Existing drying equipment can only recover one product: dried amomum tsao-ko, leading to resource waste and impacting economic value. Furthermore, the resulting steam distillate (hydrosol) contains a large amount of water, resulting in low aroma content and weak fragrance intensity. To address these issues, a device for drying and extracting hydrosol from fresh amomum tsao-ko is proposed. Utility Model Content

[0003] In view of this, the present invention provides a device for drying and extracting fresh cardamom, so as to achieve the continuous production of cardamom drying and high-purity cardamom hydrosol simultaneously.

[0004] This utility model provides the following technical solution: a fresh cardamom drying and extraction device, comprising: a drying box, which has an internal space for drying fresh cardamom and is capable of producing aromatic steam; and an auxiliary box, which is connected to the drying box via a connecting pipe and is used to condense and purify the aromatic steam.

[0005] Furthermore, the drying oven includes a hot air assembly, which includes a hot air blower and an air inlet pipe. The hot air blower is located outside the drying oven, one end of the air inlet pipe is connected to the hot air blower, and the other end of the air inlet pipe is connected to the accommodating space.

[0006] Furthermore, the drying chamber is equipped with a bottom plate with multiple air vents. The bottom plate divides the accommodating space into an air inlet chamber and a drying chamber. The air inlet pipe is connected to the air inlet chamber, and the drying chamber is located above the air inlet chamber. The drying chamber is used to place the fresh cardamom to be dried.

[0007] Furthermore, the top of the drying oven is equipped with an exhaust fan and an air suction hood. The exhaust fan is fixedly installed on the outer side of the top of the drying oven and connected to the connecting pipe. The air suction hood is placed on the inner side of the top of the drying oven and connected to the air inlet end of the connecting pipe. The air outlet end of the connecting pipe is connected to the accessory box.

[0008] Furthermore, the accessory box includes a condenser for condensing aromatic vapors into primary hydrosol, the condenser being located inside the accessory box, with its inlet connected to the outlet of a connecting pipe.

[0009] Furthermore, the accessory box also includes a buffer tank, which is located inside the accessory box, and the inlet of the buffer tank is connected to the outlet of the condensing equipment.

[0010] Furthermore, the accessory box also includes a high-pressure pump and a reverse osmosis membrane module. The inlet of the reverse osmosis membrane module is connected to the outlet of the buffer tank, and the high-pressure pump is located between the inlet of the reverse osmosis membrane module and the outlet of the buffer tank.

[0011] Furthermore, the reverse osmosis membrane module is an aromatic polyamide composite membrane; and / or,

[0012] The concentrated pure liquid outlet of the reverse osmosis membrane module is connected to an external collection tank, and the permeate of the reverse osmosis membrane module is connected to the condensation equipment through a reuse pipeline.

[0013] Furthermore, a support frame is provided inside the accessory box, and the reverse osmosis membrane module is mounted on the support frame; and / or, The accessory box contains a control module.

[0014] Furthermore, a material trolley is placed in the accommodating space. The material trolley is equipped with a trolley frame, and multiple casters are installed at the bottom of the trolley frame. Multiple material trays are spaced apart on the trolley frame, and each material tray is equipped with a drying hole.

[0015] Compared with the prior art, the beneficial effects that the above-mentioned at least one technical solution adopted by this utility model can achieve include at least the following: This device can simultaneously complete the continuous production of cardamom drying and high-purity cardamom hydrosol, which improves the utilization value of cardamom and increases economic benefits. The condensing unit is vertically distributed with the drying room and reverse osmosis module, and the integrated design improves the space utilization rate. The permeate recycling pipeline of the reverse osmosis membrane is connected to the cooling water circulation system, and the cooling water undergoes countercurrent heat exchange to optimize energy efficiency. Multi-layer perforated stainless steel pallets are fixed on the material trolley, which not only meets production requirements, but also makes loading, unloading and cleaning easy, reducing labor costs. By employing spiral-wound aromatic polyamide reverse osmosis membrane modules, flavor substances such as terpenes and phenols are selectively retained due to differences in molecular weight and polarity, achieving low-temperature enrichment without phase change. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the accessory box in an embodiment of this utility model.

[0018] The attached diagram is labeled as follows: 1. Drying oven; 2. Auxiliary parts box; 3. Hot air blower; 4. Air inlet pipe; 5. Base plate; 6. Air outlet; 7. Material trolley; 8. Air inlet chamber; 9. Tray; 10. Exhaust fan; 11. Suction hood; 12. Connecting pipe; 13. Condensation equipment; 14. Buffer tank; 15. High-pressure pump; 16. Reverse osmosis membrane module; 17. Control module; 18. Support frame. Detailed Implementation

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a fresh cardamom drying and extraction device, comprising: Drying box 1 has an internal space for drying fresh cardamom and can produce aromatic steam. The auxiliary box 2 is connected to the drying box 1 via the connecting pipe 12 and is used to condense and purify the aroma-containing vapor.

[0022] This invention enables the simultaneous recovery and condensation of aromatic vapors into initial hydrosol during the drying process; it employs an auxiliary box to increase the concentration of aromatic substances in the hydrosol; and it achieves synergistic effects between cardamom drying and high-purity hydrosol extraction.

[0023] Specifically, the main body of the drying oven 1 is a double-layer stainless steel structure, with an insulation layer on the inner wall to reduce heat loss. A hot air assembly, including a hot air blower 3 and an air inlet duct 4, is located at the bottom of the oven. The hot air blower 3 is an electrically heated type with an adjustable power range of 5-15kW, and is fixed to the outside of the drying oven 1 via a flange connection. The air inlet duct 4 is a high-temperature resistant corrugated pipe, with one end connected to the outlet of the hot air blower 3 and the other end extending to the air inlet chamber 8 at the bottom of the drying oven 1.

[0024] The drying chamber 1 is divided into upper and lower sections by a horizontally positioned base plate 5: the lower section is the air inlet chamber 8, and the upper section is the drying chamber. Air outlet holes 6, with a diameter of 3-5 mm and a spacing of 5 cm × 5 cm, are evenly distributed on the base plate 5 to ensure uniform upward diffusion of hot air. A movable material trolley 7 is placed inside the drying chamber. The trolley frame is made of 304 stainless steel and has four casters with brakes at the bottom. The trolley frame has three layers of material trays 9 spaced 30 cm apart. Each tray has multiple drying holes with a diameter of 2 mm on its surface, and the edges of the trays are surrounded by a 10 cm high barrier to prevent material spillage.

[0025] An inverted conical suction hood 11 is installed on the inner top of the drying chamber 1. The hood body is made of stainless steel, and the diameter of the hood opening matches the cross-section of the drying chamber. The suction hood 11 is connected to the induced draft fan 10 via a flange. The induced draft fan 10 is a centrifugal fan with an adjustable air volume range of 500-2000 m³ / h. The outlet of the induced draft fan 10 is connected to the condenser 13 of the auxiliary box 2 via a connecting pipe 12. The pipe is covered with insulation cotton to reduce steam condensation loss.

[0026] The auxiliary box 2 integrates a condensation, purification, and control system. The condensation equipment 13 uses a shell-and-tube heat exchanger, with circulating chilled water as the cooling medium. The inlet temperature is controlled below room temperature. The condensed primary hydrosol flows into a buffer tank 14 for temporary storage. The buffer tank has a volume of 200L and is equipped with a liquid level sensor that is interlocked with the high-pressure pump 15.

[0027] High-pressure pump 15 is a centrifugal pump with a pressure output range of 1-5 MPa, and its outlet is connected to reverse osmosis membrane module 16. The reverse osmosis membrane is an aromatic polyamide composite membrane with a molecular weight cutoff of 150 Da and an operating pressure of 3 MPa. The concentrate outlet of reverse osmosis membrane module 16 is connected to a food-grade PE collection tank, and the permeate is returned to the cooling water circulation system of condenser 13 through a reuse pipeline, realizing water resource recycling.

[0028] The auxiliary parts box 2 contains a stainless steel bracket 18, and the reverse osmosis membrane module 16 is fixed to the bracket 18 by clamps. The control module 17 integrates a PLC controller, a touch screen and a sensor group to monitor parameters such as drying temperature (40-60℃) and steam flow (10-30L / h) in real time, and automatically adjusts the power of the hot air blower and the pressure of the high-pressure pump.

[0029] The specific working process of this embodiment is as follows: 1. Loading stage Use a thickness distributor to spread the cardamom flat on the material tray 9, with the thickness of a single layer controlled at 3-5cm, and a 2cm gap between layers to facilitate ventilation. The fully loaded material trolley 7 is pushed into the drying chamber along the guide rail of the drying box 1, and the universal wheels at the bottom of the trolley automatically engage with the positioning slots. After the chamber door is closed, the airtightness of the chamber is detected by a pressure sensor. If the pressure drop is less than 5Pa within 10 seconds, the seal is deemed to be qualified.

[0030] 2. Drying stage Phase 1 (0-1h): Hot air blower 3 operates at 60% power, with hot air temperature of 45±1℃ and wind speed of 48m / s, quickly removing surface moisture; Phase 2 (1-3h): Power increases to 85%, temperature rises to 52±1℃, wind speed reaches 216m / s, promoting the diffusion of internal moisture; Phase 3 (3-5h): Power is reduced to 70%, maintained at 50±1℃, wind speed is 150m / s, and equilibrium moisture content is reduced to below 12%; A guide vane is installed in the air inlet chamber 8 to ensure that the flow rate difference of hot air through the air outlet 6 is less than 5%. Multiple temperature sensors inside the chamber provide feedback to adjust the PID parameters of the hot air blower 3. When the humidity sensor in the drying chamber detects a relative humidity > 75%, the induced draft fan 10 is triggered to start.

[0031] 3. Steam collection stage The induced draft fan 10 operates at a speed of 1200 r / min, creating a negative pressure of -200 Pa at the suction hood 11, with a steam collection efficiency of ≥95%; The connecting pipe 12 adopts a double-layer vacuum insulation structure (inner layer of 304 stainless steel, outer layer of polyurethane foam) to maintain the steam temperature in the range of 65-70℃. An 80-mesh stainless steel filter screen is installed at the inlet of the suction hood 11 to intercept solid particles with a diameter >0.2mm.

[0032] 4. Condensation and purification stage The circulating cooling water flow rate of the condensing equipment 13 is controlled at 5L / min, so that the steam forms a film condensation on the inner wall of the serpentine tube; Condensate outlet temperature ≤25℃, primary hydrosol production rate 10-15L / h; High-pressure pump 15 pressurizes the primary hydrosol to 3.2 MPa and introduces it into the reverse osmosis membrane module 16 at a flow rate of 2 m / s; The aromatic polyamide composite membrane operates at pH 5.5 and retains substances with a molecular weight below 150 Da, increasing the concentration of the concentrated hydrosol to 98.5%.

[0033] 5. Finished Product Collection and Recycling After being treated by an ultraviolet sterilization module (wavelength 254nm, irradiation dose 30mJ / cm²), the concentrated hydrosol is placed into a sterile collection tank under nitrogen protection. The permeate is returned to the cooling tower makeup water system of the condenser 13 through a reuse pipeline, with a reuse rate of ≥80%. The cooling water circulation system is equipped with an online conductivity monitor, which activates the drain valve when the ion concentration is >200mg / L. The control module 17 automatically generates batch reports, including drying curves, hydrosol yield, and energy consumption indicators.

[0034] The above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of its implementation. Therefore, any substitution of equivalent components or equivalent changes and modifications made within the scope of protection of this utility model patent should still fall within the scope of this patent. Furthermore, the technical features, technical features and technical solutions, and technical solutions in this utility model can be freely combined and used.

Claims

1. A device for drying and extracting fresh cardamom, characterized in that, include: The drying box (1) has an internal space for drying fresh cardamom and can produce aromatic steam. The auxiliary box (2) is connected to the drying box (1) via a connecting pipe (12) and is used to condense and purify the aroma-containing vapor; The drying oven (1) includes a hot air assembly, which includes a hot air blower (3) and an air inlet pipe (4). The hot air blower (3) is placed outside the drying oven (1). One end of the air inlet pipe (4) is connected to the hot air blower (3), and the other end of the air inlet pipe (4) is connected to the accommodating space. The drying box (1) is provided with a bottom plate (5), and multiple air outlets (6) are provided on the bottom plate (5). The bottom plate (5) divides the accommodating space into an air inlet chamber (8) and a drying chamber. The air inlet pipe (4) is connected to the air inlet chamber (8). The drying chamber is located above the air inlet chamber (8), and the drying chamber is used to place fresh cardamom to be dried.

2. The fresh cardamom drying and extraction device according to claim 1, characterized in that, The top of the drying box (1) is equipped with an exhaust fan (10) and an air suction hood (11). The exhaust fan (10) is fixedly installed on the outside of the top of the drying box (1) and connected to the connecting pipe (12). The air suction hood (11) is placed on the inside of the top of the drying box (1) and connected to the air inlet of the connecting pipe (12). The air outlet of the connecting pipe (12) is connected to the auxiliary box (2).

3. The fresh cardamom drying and extraction device according to claim 1, characterized in that, The auxiliary box (2) includes a condenser (13) for condensing aromatic vapor into primary hydrosol. The condenser (13) is located inside the auxiliary box (2), and the inlet of the condenser (13) is connected to the outlet of the connecting pipe (12).

4. The fresh cardamom drying and extraction device according to claim 3, characterized in that, The auxiliary parts box (2) also includes a buffer tank (14), which is located inside the auxiliary parts box (2). The inlet of the buffer tank (14) is connected to the outlet of the condensing equipment (13).

5. The fresh cardamom drying and extraction device according to claim 4, characterized in that, The accessory box (2) also includes a high-pressure pump (15) and a reverse osmosis membrane module (16). The inlet of the reverse osmosis membrane module (16) is connected to the outlet of the buffer tank (14), and the high-pressure pump (15) is located between the inlet of the reverse osmosis membrane module (16) and the outlet of the buffer tank (14).

6. The fresh cardamom drying and extraction device according to claim 5, characterized in that, The reverse osmosis membrane module (16) is an aromatic polyamide composite membrane; and / or, The concentrated pure outlet of the reverse osmosis membrane module (16) is connected to an external collection box, and the permeate of the reverse osmosis membrane module (16) is connected to the condenser (13) through a reuse pipe.

7. The fresh cardamom drying and extraction device according to claim 5, characterized in that, The accessory box (2) contains a support (18), and the reverse osmosis membrane module (16) is mounted on the support (18); and / or, The auxiliary parts box (2) is equipped with a control module (17).

8. The fresh cardamom drying and extraction device according to claim 1, characterized in that, The accommodating space contains a material trolley (7), which is equipped with a trolley frame. The bottom of the trolley frame is equipped with multiple casters, and multiple material trays (9) are spaced apart on the trolley frame. Each material tray (9) is equipped with a drying hole.

Images