High-efficiency dispersion structure of liquid materials and centrifugal dispersion distillation device for aroma components

Abstract

The present invention discloses a high-efficiency dispersion structure for liquid materials and a centrifugal dispersion distillation device for aroma components. The high-efficiency dispersion structure for liquid materials of the present invention includes a plurality of coaxially arranged liquid material temporary storage trays, and a material dispersion portion for dispersing the liquid material entering the liquid material temporary storage tray into droplets is arranged along the circumferential direction of the liquid material temporary storage tray. The material dispersion portion includes a baffle arranged along the outer edge of the liquid material temporary storage tray, and also includes a material blocking portion. The material blocking portion includes a shell sleeved outside the liquid material temporary storage tray and a plurality of guide plates arranged on the inner side wall of the shell, and the guide plates and the liquid material temporary storage tray are staggered in sequence. The centrifugal dispersion distillation device of the present invention can fully disperse the liquid material, effectively improve the distillation efficiency of the aroma components contained therein, reduce the distillation time, and improve the extraction rate and production capacity of the aroma components.

Description

Technical Field

[0001] The invention relates to a high-efficiency dispersion structure of liquid materials and a centrifugal dispersion distillation device for aroma components. Background Art

[0002] Methods for extracting aroma components primarily include pressing, distillation, extraction, and adsorption. Distillation is a relatively common method. Distillation involves contact between water vapor and a juice containing aroma components, allowing for heat and mass transfer. By controlling the vapor-liquid temperature, the desired aroma compounds are distilled from the juice, and the product is obtained after condensation.

[0003] The most commonly used equipment for aroma component extraction by distillation is still the still kettle. However, the use of existing still kettles for aroma extraction has the following main defects: long distillation time and reduced product quality; uneven distribution of mass transfer and heat transfer rates, and the product extraction yield needs to be improved; low distillation efficiency, low production capacity, and large space occupation.

[0004] In the 1980s, the rotating cone column technology (SCC) developed and promoted for industrial application by the Australian company Flavourtech greatly improved the efficiency, quality and extraction yield of aroma distillation. At present, it has been used in small quantities in China.

[0005] The core principle of rotating cone column technology is to use the conical rotating surface to form a film of aroma-containing juice, expanding the heat and mass transfer area between steam and juice, thereby improving distillation efficiency and shortening distillation time. Although rotating cone column technology offers significant advantages over still kettle methods for extracting aroma components, the film-like liquid phase is still not the most optimized heat and mass transfer method, leaving room for improvement. Furthermore, the high investment cost of existing rotating cone column technology devices prevents them from becoming widely applicable aroma distillation devices. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings, the object of the present invention is to provide a high-efficiency dispersion structure of liquid materials and a centrifugal dispersion distillation device for aroma components.

[0007] The efficient liquid material dispersion structure of the present invention includes a plurality of coaxially arranged liquid material temporary storage trays, each of which is rotatable. A material dispersion portion is disposed circumferentially along the liquid material temporary storage trays for dispersing liquid material entering the liquid material temporary storage trays. The structure also includes a material retaining portion comprising a housing sleeved outside the liquid material temporary storage trays, with the material dispersion portion located within the housing. With the structure of the present invention, the liquid material temporary storage trays are rotatable and rapidly dispersed through the material dispersion portion. Simultaneously, the housing blocks the material, thereby impacting the material and further enhancing its dispersion efficiency.

[0008] Furthermore, the material retaining portion further includes a plurality of guide plates disposed on the inner sidewall of the housing. The guide plates are arranged alternately with the liquid material temporary storage trays, so that the liquid material can flow from any guide plate to the adjacent liquid material temporary storage tray disposed below it. Thus, the liquid material can be repeatedly deflected and dispersed between each guide plate and the liquid material temporary storage tray.

[0009] Furthermore, the material dispersion section includes a baffle disposed along the outer edge of the liquid material temporary storage tray. The baffle is provided with a plurality of sieve holes, and a flow channel for liquid and gaseous materials to pass through is defined between the baffle and the housing. As a result, liquid material entering the liquid material temporary storage tray is dispersed into droplets by the baffle, which then impact the inner sidewall of the housing in the area corresponding to the baffle, achieving a more effective dispersion effect.

[0010] Furthermore, a limit plate is provided at one end of the baffle away from the liquid material temporary storage tray connected thereto, and the limit plate extends in a direction away from the shell.

[0011] The present invention also provides an aroma component centrifugal dispersion distillation device, which includes the aforementioned high-efficiency dispersion structure of the liquid material.

[0012] Furthermore, it also includes a rotating shaft arranged in the middle of the shell and a driving device coaxially connected to the rotating shaft, and each of the liquid material temporary storage trays is fixedly connected to the rotating shaft.

[0013] Furthermore, each of the liquid material temporary storage trays is sequentially arranged on the rotating shaft from top to bottom.

[0014] Furthermore, a liquid phase feed port, a liquid phase discharge port, a gas phase feed port and a gas phase discharge port are provided on the shell, the liquid phase feed port and the liquid phase discharge port are respectively provided close to the upper end and the lower end of the shell, and the gas phase feed port and the gas phase discharge port are respectively provided close to the lower end and the upper end of the shell.

[0015] The aroma component centrifugal dispersion distillation device of the present invention has the following beneficial effects: the device of the present invention can fully disperse the liquid material containing the aroma component and fully contact it with the reversely transferred gas phase. It effectively improves the distillation efficiency of the aroma component through multi-stage mass transfer and heat transfer, reduces the distillation time, and increases the extraction yield and production capacity of the aroma component; while ensuring a high distillation efficiency, the device of the present invention has good working stability and is not prone to shaking during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of Embodiment 1 of the present invention;

[0017] Figure 2 This is a structural diagram of embodiment 2 of the present invention.

[0018] In the picture:

[0019] 1. Liquid material temporary storage tray; 2. Rotating shaft; 31. Baffle; 41. Shell; 42. Guide plate; 5. Limit plate; 6. Drive motor; 7. Liquid phase feed port; 8. Liquid phase discharge port; 9. Gas phase feed port; 10. Gas phase discharge port. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0021] Example 1:

[0022] See attached Figure 1 As shown in the figure, as a preferred embodiment of the efficient dispersion structure of liquid material of the present invention, it includes a plurality of coaxially arranged liquid material temporary storage trays 1, and each liquid material temporary storage tray 1 is sequentially arranged on the rotating shaft 2 from top to bottom. Therefore, when the rotating shaft 2 rotates, it can drive each liquid material temporary storage tray 1 to rotate, and a material dispersion part for dispersing the liquid material entering the liquid material temporary storage tray 1 into droplets is provided along the circumferential direction of the liquid material temporary storage tray 1. The material dispersion part of the present invention includes a baffle 31 arranged along the outer edge of the liquid material temporary storage tray 1. The baffle 31 is arranged on the upper surface of the liquid material temporary storage tray 1. The baffle 31 of this embodiment is annular and connected to the liquid material temporary storage tray 1 in a direction perpendicular to it. It can also be designed to have an acute angle or an obtuse angle with the liquid material temporary storage tray 1 as needed. The baffle 31 is provided with a plurality of sieve holes, so that the liquid material entering the liquid material temporary storage tray 1 can be dispersed into numerous small droplets through the sieve holes on the baffle 31 during its rotation, thereby increasing the heat exchange efficiency with the gas material.

[0023] The efficient dispersion structure of the liquid material of this embodiment also includes a material retaining portion, which includes a shell 41 mounted outside the liquid material temporary storage tray 1 and a plurality of guide plates 42 arranged on the inner side wall of the shell 41. The guide plates 42 of this embodiment are annular and are arranged alternately with the liquid material temporary storage tray 1. The liquid material can flow from any guide plate 42 to the adjacent liquid material temporary storage tray 1 arranged below it. Subsequently, after passing through the baffle 31, it is dispersed into droplets and impacts the inner side wall of the shell 41 in the area corresponding to the baffle 31, further being dispersed into smaller droplets, thereby increasing the contact area between the gas phase and the liquid phase.

[0024] A limit plate 5 is also provided at the end of the baffle 31, away from the liquid material temporary storage tray 1 connected thereto. This limit plate 5 extends away from the housing 41. This ensures that all liquid material entering the liquid material temporary storage tray 1 is discharged through the sieve apertures. Liquid and gaseous materials can flow between the adjacent limit plate 5 and guide plate 42, creating a flow channel for the liquid and gaseous materials between the baffle 31 and the housing 41.

[0025] By Figure 1 The liquid material is input in the direction indicated by the black arrow, and the liquid material is input in the opposite direction to the gas material. As a result, after entering the shell 41 of this embodiment, the gas material passes from top to bottom through the baffle 31 and the shell 41, as well as the channel formed between the limit plate 5 and the guide plate 42. Under the action of each guide plate 42 and the liquid material temporary storage tray 1, the liquid material is dispersed into countless droplets and fully contacts the gas material in the direction opposite to the flow direction of the gas material, greatly improving the distillation efficiency of the aroma components. The liquid material that has not been evaporated is blocked and condensed by the multi-stage guide plates 42 and continues to fully contact the gas material, thereby extracting the aroma components in the steam, or flows back to the lower position of the liquid material temporary storage tray 1 to be regenerated into droplets and fully contact the gas material. Therefore, the structure of this embodiment can greatly improve the dispersion efficiency of the liquid material and enable it to carry out sufficient and multi-stage heat and mass transfer with the gas material.

[0026] As a preferred implementation of this embodiment, the distance between the edge of the guide plate 42 near the rotating shaft 2 and the rotating shaft 2 does not exceed the distance between the outer edge of the liquid material temporary storage tray 1 and the rotating shaft 2. The guide plate 42 is arranged to gradually tilt downward from the housing 41 toward the rotating shaft 2. This facilitates the flow of liquid material into the liquid material temporary storage tray 1.

[0027] Example 2:

[0028] See attached Figure 2As shown, as a preferred embodiment of the centrifugal dispersion distillation device for aroma components of the present invention, it includes the efficient dispersion structure of the liquid material of Example 1. The shell 41 of the efficient dispersion structure of Example 1 constitutes the outer shell 41 of the device of this embodiment. The rotating shaft 2 is arranged through the middle of the outer shell 41. This embodiment also includes a driving motor 6 coaxially connected to the rotating shaft 2, and each liquid material temporary storage disk 1 is arranged on the rotating shaft 2 in sequence from top to bottom. A liquid phase feed port 7, a liquid phase discharge port 8, a gas phase feed port 9 and a gas phase discharge port 10 are provided on the shell 41. The liquid phase feed port 7 and the liquid phase discharge port 8 are respectively arranged near the upper end and the lower end of the shell 41, and the gas phase feed port 9 and the gas phase discharge port 10 are respectively arranged near the lower end and the upper end of the shell 41. Steam is introduced into the device from the gas phase feed port 9 at the bottom of the device, and the liquid material to be distilled is introduced into the liquid phase feed port 7 located at the upper part of the device. Then, under the action of the efficient dispersion structure of the liquid material, the liquid material and the steam undergo multi-stage countercurrent heat exchange. At the same time, under the rotation of the rotating shaft 2, strong turbulent mixing is formed at the baffles 31 at each level, achieving sufficient heat and mass transfer effects. Finally, the steam rich in aroma components is discharged from the device through the gas phase discharge port 10 at the top of the device and condensed to form a product.

[0029] Table 1 shows a comparison of the parameters of the apparatus of this embodiment with those of existing kettle distillation and SCC rotating cone column distillation. It can be seen that the centrifugal dispersed distillation apparatus of this embodiment is superior to kettle distillation and rotating cone column distillation in parameters such as mass and heat transfer surface area and residence time, thereby achieving higher product quality and yield.

[0030] Table 1 Comparison of relevant parameters of the apparatus of this embodiment with the existing kettle distillation apparatus and SCC rotating cone column distillation apparatus

[0031]

[0032] Taking the extraction of clove essential oil from clove stamens as an example, fresh clove stamens are thoroughly ground and filtered to obtain a juice rich in clove essential oil. A flow rate of 200 kg / h is fed through the liquid phase feed port 7 at the top of the apparatus of this embodiment. The rotation speed of the rotating shaft 2 is adjusted to 100-3000 r / min, and steam is introduced into the tower at a flow rate of 110 kg / h for distillation.

[0033] The recovered clove essential oil product was analyzed using headspace gas chromatography for component analysis and compared with a traditional kettle distillation recovery method. The improved yield of the extracted components in this embodiment was calculated as follows: (the extracted component value in this embodiment minus the extracted component value in kettle distillation) / the extracted component value in kettle distillation. As shown in Table 2, the yield of the extracted components of clove essential oil using the apparatus of this embodiment increased by 45.95% compared to kettle distillation, and the content of active ingredients in the extract increased by 3.2%.

[0034] Table 2 Comparison of the extraction effects of clove essential oil components using the apparatus of Example 2 and using a kettle distillation apparatus

[0035]

[0036] It can be seen that compared with the prior art, the device of the present invention can improve the distillation efficiency of natural ingredients, reduce the distillation time, and improve product quality, extraction yield and production capacity.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A centrifugal dispersion distillation device for aroma components, characterized in that: The hopper has a plurality of channels that are arranged on the outer surface of the hopper, and the channels are connected to the hopper to form a circle around the hopper, so that the hopper can move freely in the hopper and get out of the hopper. It also includes a rotating shaft arranged in the middle of the shell and a driving device coaxially connected to the rotating shaft, and each of the liquid material temporary storage trays is fixedly connected to the rotating shaft. A liquid phase feed port, a liquid phase discharge port, a gas phase feed port and a gas phase discharge port are provided on the shell. The liquid phase feed port and the liquid phase discharge port are respectively provided close to the upper end and the lower end of the shell, and the gas phase feed port and the gas phase discharge port are respectively provided close to the lower end and the upper end of the shell.

2. The centrifugal dispersion distillation device for aroma components according to claim 1, characterized in that: A limit plate is further provided at one end of the baffle away from the liquid material temporary storage tray connected thereto, and the limit plate extends in a direction away from the shell.

3. The centrifugal dispersion distillation device for aroma components according to claim 1, characterized in that: The liquid material temporary storage trays are arranged on the rotating shaft in sequence from top to bottom.

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