Continuous variable frequency lavender distillation extraction apparatus and method

Abstract

This invention discloses a continuous frequency conversion lavender distillation and extraction device, belonging to the technical field of lavender extraction devices. It includes a housing, a steam generator, and a water tank mounted on the top surface of a base plate. The housing is equipped with a feed hopper and a sealed spiral discharge pipe. It also includes a first semi-cylinder, a second semi-cylinder, an exhaust pipe, a conveying mechanism, and a steam purging mechanism. Steam generated by the steam generator is conveyed to a hollow plate through a steam exhaust pipe. The steam in the hollow plate is divided into two hollow cylinders. A first shaft drives a crossbar via a transmission belt, and a pinion meshing with a gear ring drives the hollow cylinders to rotate. A spiral guide plate inside the cylinder rotates synchronously with the cylinder, guiding the steam to form a spiral airflow. This airflow sweeps the material circumferentially through the air purging holes. The steam forms a spiral-enveloping airflow field during dynamic rotation, ensuring full contact with the axially conveyed material. This improves upon the defects of localized enrichment and poor inner layer penetration in traditional direct-injection steam, enhancing the mass transfer efficiency between steam and lavender.

Description

Technical Field

[0001] This invention belongs to the technical field of lavender extraction devices, and particularly relates to a continuous frequency conversion lavender distillation extraction device and method. Background Technology

[0002] As a high-value-added natural fragrance, lavender essential oil is in ever-increasing demand in the daily chemical and pharmaceutical industries. Its extraction technology has evolved from early intermittent water distillation to continuous steam extraction. Continuous distillation technology, through continuous material transport and continuous contact with steam, significantly improves production efficiency and has become the mainstream direction for current industrial applications.

[0003] However, existing continuous lavender distillation and extraction equipment still has the following shortcomings, which seriously restrict the extraction efficiency and quality stability of essential oils:

[0004] First, the problem of uneven contact between steam and materials is prominent. Traditional equipment often uses steam injection in a fixed direction, resulting in insufficient steam penetration into the inner layer of materials.

[0005] Second, the multi-drive system has poor coordination. Independent variable frequency motors are often used in modules such as material conveying and steam purging. This not only increases energy consumption, but also easily leads to problems such as "materials moving fast while steam moves slow" or "materials moving slow while steam moves fast" due to speed mismatch, affecting the stability of continuous operation. Summary of the Invention

[0006] The purpose of this invention is to provide a continuous frequency conversion lavender distillation and extraction device and method to solve the technical problem of uneven contact between steam and material in the prior art, where traditional equipment often uses fixed-direction direct steam injection, resulting in insufficient steam penetration of the inner material.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A continuous frequency conversion lavender distillation and extraction device includes a housing, a steam generator, and a water tank mounted on the top surface of a base plate. The housing is equipped with a feed hopper and a sealed spiral discharge pipe. The device further includes: a first semi-cylinder installed inside the housing, on which a first discharge pipe is mounted; a second semi-cylinder located directly below the first semi-cylinder, on which a second discharge pipe is mounted, connected to the sealed spiral discharge pipe; both the first and second semi-cylinders have multiple vent holes; and an exhaust pipe penetrating the water tank and sealed to the housing. The system includes: a sealed connection and internal communication; a conveying mechanism for conveying material from the first semi-cylinder to a sealed spiral discharge pipe; and a steam purging mechanism comprising: a mounting base installed inside the housing, on which two hollow cylinders are rotatably connected, the two hollow cylinders being respectively fitted onto the first and second semi-cylinders, the inner walls of the hollow cylinders having multiple circumferentially distributed air holes, the hollow cylinders being used to receive steam from a steam generator; and a transmission assembly for transmitting the driving force of the conveying mechanism to the two hollow cylinders, causing the two hollow cylinders to rotate.

[0009] Preferably, the steam purging mechanism further includes: a hollow plate, rotatably connected and communicating with the two hollow cylinders, for guiding the steam delivered by the steam generator into the two hollow cylinders; and two steam guide plates, respectively installed in the two hollow cylinders, wherein the steam guide plates are spiral-shaped.

[0010] Preferably, the conveying mechanism includes: a first shaft rotatably connected to the first semi-cylinder and the housing; a second shaft rotatably connected to the second semi-cylinder and the housing; two helical blades located inside the first and second semi-cylinders respectively, and fixedly connected to the first and second shafts respectively; a variable frequency motor installed on one side of the housing, with its power output shaft fixedly connected to the first shaft; and two connecting gears fixedly connected to the first and second shafts respectively, the two connecting gears being connected.

[0011] Preferably, the transmission assembly includes: two gear rings, which are respectively fixedly sleeved on the two hollow cylinders; a pinion gear, which meshes with the two gear rings; a crossbar, one end of which is fixedly connected to the pinion gear and the other end of which is rotatably connected to the inner wall of the housing; and a transmission belt, which is sleeved on the crossbar and the first shaft.

[0012] Preferably, it also includes a stirring mechanism, which includes: a horizontal shaft, rotatably connected to the tank body and the water storage tank, one end of which is fixedly connected to the second shaft; and multiple stirring plates, all located inside the water storage tank and all fixedly connected to the horizontal shaft.

[0013] Preferably, the water pumping pipe of the steam generator extends into the water storage tank, and the steam exhaust pipe of the steam generator is connected to the hollow plate.

[0014] Preferably, a rotating rod is rotatably connected inside the steam pipe, a scraper is installed on the rotating rod, and a fourth bevel gear is fixedly sleeved on the rotating rod.

[0015] Preferably, the system further includes a cleaning mechanism, which comprises: a reducer connected to the inner bottom surface of the housing via a connecting seat, with a driven gear mounted on its input shaft and a first bevel gear mounted on its output shaft, the driven gear meshing with a connecting gear; a fixed frame fixedly connected to the connecting seat; and a vertical rod rotatably connected to the fixed frame and the steam pipe, with a second bevel gear and a third bevel gear mounted at its two ends respectively, the second bevel gear meshing with the first bevel gear and the third bevel gear meshing with a fourth bevel gear.

[0016] Preferably, it also includes: a rotary sealing feed valve installed on the feed hopper; and four support seats, all installed on the bottom surface of the base plate, each with a height adjustment function.

[0017] The operating method of the continuous frequency conversion lavender distillation and extraction equipment includes the following steps: Step 1: Add clean water to the water storage tank until the liquid level is higher than the preset position of the water inlet of the pump pipe; Step 2: Start the rotary sealing feed valve and add the chopped lavender to the feed hopper at a uniform speed. The rotary sealing feed valve maintains the seal at the feed inlet when conveying raw materials, allowing the raw materials to fall into the first semi-cylinder; Step 3: Start the frequency conversion motor to drive the first shaft to rotate. The first shaft drives the second shaft to rotate synchronously through the connecting gear, thereby driving the spiral blades to rotate; then start the steam generator. The steam generator draws water from the water storage tank to generate steam. The steam is delivered to the hollow plate through the steam pipe and then distributed to the hollow cylinder; at the same time, the first shaft drives the crossbar to rotate through the transmission belt, and the crossbar... The hollow cylinder is driven to rotate by the meshing of the pinion and the gear ring, causing the spiral steam guide plate inside the cylinder to rotate synchronously; Step four, the spiral blades in the first semi-cylinder push the raw material to move towards the first discharge pipe, and the spiral guide plate in the hollow cylinder guides the steam to form a spiral airflow, which sweeps the raw material through the blowing hole and penetrates the ventilation hole to complete the initial extraction; the raw material falls into the second semi-cylinder through the first discharge pipe, and the second shaft drives the spiral blades to move the raw material, and the spiral steam continuously surrounds the raw material to complete the further extraction; Step five, the steam containing lavender essential oil enters the exhaust pipe, and the exhaust pipe comes into contact with the water in the water tank to cause the steam to condense initially, and the second shaft drives the horizontal shaft and the stirring plate to rotate to make the water temperature uniform; Step six, the sealed spiral discharge pipe is started to discharge the distilled tail material to the designated collection device.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. The continuous frequency conversion lavender distillation and extraction equipment of the present invention is equipped with a feeding hopper, a sealed spiral discharge pipe, a first semi-cylinder, a second semi-cylinder, an exhaust pipe, a conveying mechanism, and a steam purging mechanism. The material is fed into the first semi-cylinder through the feeding hopper, and then conveyed into the sealed spiral discharge pipe through the conveying mechanism. Finally, the material is discharged through the sealed spiral discharge pipe. The material is continuously conveyed in the dual chambers. The entire process of feeding and discharging is without downtime, which is suitable for industrial continuous production scenarios and greatly improves production efficiency.

[0020] 2. The steam purging mechanism in this invention consists of a hollow plate, a hollow cylinder, a steam guide plate, a gear ring, a pinion, a crossbar, and a transmission belt. Steam generated by the steam generator is transported to the hollow plate through a steam pipe. The steam in the hollow plate is then divided into two hollow cylinders. The first shaft drives the crossbar through the transmission belt, and the pinion meshes with the gear ring to drive the hollow cylinder to rotate. The spiral guide plate inside the cylinder rotates synchronously with the cylinder, guiding the steam to form a spiral airflow. This airflow sweeps the material circumferentially through the air purging holes. The steam forms a spiral-enveloping airflow field during dynamic rotation, ensuring full contact with the axially conveyed material. This improves upon the defects of local enrichment and poor inner layer penetration of traditional direct-injection steam, thereby enhancing the mass transfer efficiency between steam and lavender.

[0021] 3. The conveying mechanism in this invention is equipped with a variable frequency motor. When the variable frequency motor is running, it can not only drive two spiral blades to convey materials through the shaft and connecting gear, but also drive the hollow cylinder to rotate through the transmission belt, gear ring and pinion to realize dynamic steam distribution; and drive the horizontal shaft and stirring plate to stir the water in the water storage tank through the second shaft. At the same time, it can complete the single-power multi-linkage operation of material conveying, steam purging and water temperature stirring, simplifying the power structure of the equipment and reducing energy consumption and maintenance costs.

[0022] 4. The continuous frequency conversion lavender distillation and extraction equipment of the present invention is equipped with a water storage tank. When the steam containing lavender essential oil passes through the water storage tank through the exhaust pipe, it will transfer heat to the water. At the same time, the second shaft linkage drives the horizontal shaft to rotate the stirring plate, so that the water temperature in the water storage tank is uniform. The preheated water is supplied to the steam generator through the water pumping pipe, realizing the recovery of steam waste heat and water temperature homogenization, and reducing the heating load of the steam generator. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 The three-dimensional continuous frequency conversion lavender distillation and extraction device of the present invention Figure 1;

[0025] Figure 2 The three-dimensional continuous frequency conversion lavender distillation and extraction device of the present invention Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the assembly structure of the steam purging mechanism, steam pipe and cleaning mechanism in this invention;

[0027] Figure 4 In this invention Figure 3 Enlarged schematic diagram of part A;

[0028] Figure 5 This is a schematic diagram of the assembly structure of the first semi-cylinder, the first discharge pipe, the second semi-cylinder, and the sealing spiral discharge pipe in this invention.

[0029] Figure 6 This is a schematic diagram of the assembly structure of the conveying mechanism and the steam purging mechanism in this invention;

[0030] Figure 7 This is a schematic diagram of the assembly structure of the hollow cylinder and the steam guide plate in this invention;

[0031] Figure 8 This is a schematic diagram of the assembly structure of the steam pipe and cleaning mechanism in this invention;

[0032] Figure 9 In this invention Figure 8 Enlarged schematic diagram of part B;

[0033] Reference numerals: 100, base plate; 101, support base; 201, housing; 2011, material handling gate; 202, feed hopper; 2021, rotary sealed feed valve; 203, first semi-cylinder; 204, first discharge pipe; 205, second semi-cylinder; 206, vent hole; 207, second discharge pipe; 208, sealed spiral discharge pipe; 209, exhaust pipe; 210, conveying mechanism; 211, first shaft; 212, second shaft; 213, spiral blade; 214, variable frequency motor; 215, connecting gear; 220, steam purging mechanism; 221, mounting base; 222, hollow plate; 223, hollow cylinder; 2231. 2232. Air blower; 224. Gear ring; 225. Pinion; 226. Crossbar; 227. Drive belt; 230. Stirring mechanism; 231. Horizontal shaft; 232. Stirring plate; 301. Steam generator; 302. Water storage tank; 303. Water pumping pipe; 304. Steam exhaust pipe; 3041. Rotating rod; 3042. Scraper; 3043. Fourth bevel gear; 3044. Sealing box; 310. Cleaning mechanism; 311. Reducer; 312. Connecting seat; 313. Driven gear; 314. First bevel gear; 315. Vertical rod; 316. Fixing frame; 317. Second bevel gear; 318. Third bevel gear. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0037] This invention is described in detail with reference to the accompanying drawings. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not to scale. Furthermore, the accompanying drawings are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0038] Furthermore, it should be noted in the description of this invention that the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] Example 1: As Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the continuous frequency conversion lavender distillation and extraction equipment includes a housing 201, a steam generator 301, and a water storage tank 302 mounted on the top surface of the base plate 100. The housing 201 is equipped with a feed hopper 202 and a sealed spiral discharge pipe 208. The sealed spiral discharge pipe 208 consists of a cylinder, a drive motor, and an auger. The cylinder is installed through one side of the housing 201, and a discharge port is located at the end of the cylinder outside the housing 201. The drive motor is mounted on the end of the cylinder outside the housing 201, and the auger is rotatably connected to the inside of the cylinder. The drive motor drives the auger to rotate. A rotary sealed feed valve 2021 is installed on the feed hopper 202. The rotary sealed feed valve 2021 is a mature existing technology, and its working principle and specific structure will not be described in detail here.

[0041] The continuous frequency conversion lavender distillation and extraction equipment also includes a first semi-cylinder 203, a second semi-cylinder 205, an exhaust pipe 209, a conveying mechanism 210, and a steam purging mechanism 220.

[0042] A first semi-cylinder 203 is installed inside the housing 201, and a first discharge pipe 204 is installed on the first semi-cylinder 203. A second semi-cylinder 205 is installed inside the housing 201, located directly below the first semi-cylinder 203. A second discharge pipe 207 is installed on the second semi-cylinder 205, and the second discharge pipe 207 is connected to a sealed spiral discharge pipe 208. Both the first semi-cylinder 203 and the second semi-cylinder 205 have multiple vent holes 206. An exhaust pipe 209 passes through the water storage tank 302, and is fixedly connected to and communicates with the housing 201. The end of the exhaust pipe 209 away from the water storage tank 302 is connected to an external condenser. A material access door 2011 is installed on the back of the housing 201.

[0043] The conveying mechanism 210 is used to convey the material in the first semi-cylinder 203 to the sealed spiral discharge pipe 208.

[0044] The steam purging mechanism 220 includes a mounting base 221 and a transmission assembly. The mounting base 221 is installed inside the housing 201, and two hollow cylinders 223 are rotatably connected to the mounting base 221. The two hollow cylinders 223 are respectively fitted onto the first semi-cylinder 203 and the second semi-cylinder 205. Several air holes 2231 are opened on the inner wall of the hollow cylinders 223. The hollow cylinders 223 are used to receive steam delivered by the steam generator 301. The first semi-cylinder 203 and the second semi-cylinder 205 receive the steam delivered by the hollow cylinders 223 through the vent holes 206 and the opening at the top. The transmission assembly is used to transmit the driving force of the conveying mechanism 210 to the two hollow cylinders 223, causing the two hollow cylinders 223 to rotate.

[0045] Specifically, the lavender that needs to be cut and steam-extracted is added into the feed hopper 202. Then, by activating the rotary sealing feed valve 2021 on the feed hopper 202, the lavender in the feed hopper 202 falls into the first semi-cylinder 203. Then, by activating the steam generator 301, steam is supplied to the two hollow cylinders 223. The steam in the hollow cylinders 223 is discharged through the air blowing hole 2231.

[0046] By activating the conveying mechanism 210, the lavender in the first semi-cylinder 203 is moved closer to the first discharge pipe 204, causing it to fall into the second semi-cylinder 205 via the first discharge pipe 204. Then, the conveying mechanism 210 moves the lavender in the second semi-cylinder 205 closer to the second discharge pipe 207, causing it to enter the sealed spiral discharge pipe 208 via the second discharge pipe 207. Finally, by activating the sealed spiral discharge pipe 208, the steam-extracted lavender inside is discharged.

[0047] As the lavender moves within the first semi-cylinder 203 and the second semi-cylinder 205, the steam blown out of the air outlet 2231 comes into contact with the lavender, thereby extracting the lavender essential oil. The steam containing lavender essential oil enters the exhaust pipe 209 and then the condenser connected to the exhaust pipe 209. Because the exhaust pipe 209 is in contact with the water in the water tank 302, the temperature of the exhaust pipe 209 is much lower than the temperature of the steam containing lavender essential oil, thus allowing the steam containing lavender essential oil to condense into liquid. Furthermore, the water in the water tank 302 can absorb the heat of the steam, thereby reducing the energy consumption required for the steam generator 301 to produce steam.

[0048] like Figures 6 to 8 As shown, the steam purging mechanism 220 also includes a hollow plate 222 and two steam guide plates 2232. The hollow plate 222 is rotatably connected to and communicates with the two hollow cylinders 223, and the hollow plate 222 is used to guide the steam delivered by the steam generator 301 into the two hollow cylinders 223. The hollow plate 222 is figure-eight shaped.

[0049] Two steam guide plates 2232 are respectively installed inside two hollow cylinders 223. The steam guide plates 2232 are spiral in shape. The direction of rotation of the steam guide plates 2232 is the same as the direction of rotation of the corresponding spiral blades 213.

[0050] Specifically, by setting the hollow plate 222, the steam delivered by the steam generator 301 can be delivered into the two hollow cylinders 223, and the delivery of steam will not be affected even when the two hollow cylinders 223 are rotating.

[0051] By setting a spiral steam guide plate 2232 inside the hollow cylinder 223, the steam guide plate 2232 rotates synchronously with the hollow cylinder 223. After the steam enters the hollow cylinder 223, it forms a spiral airflow under the guidance of the rotation of the steam guide plate 2232. Combined with the circumferential sweeping of the air outlet, the steam is spirally wrapped and contacts the lavender inside the cylinder. By using the rotational power of the hollow cylinder 223 to enhance the spiral diffusion effect of the steam, the contact area is increased compared with the traditional direct injection steam, and the problem of insufficient steam penetration into the inner layer of lavender is also solved.

[0052] like Figure 5As shown, the conveying mechanism 210 includes a first shaft 211, a second shaft 212, two helical blades 213, a variable frequency motor 214, and two connecting gears 215. The first shaft 211 is rotatably connected to the first semi-cylinder 203 and the housing 201; the second shaft 212 is rotatably connected to the second semi-cylinder 205 and the housing 201; the two helical blades 213 are respectively located inside the first semi-cylinder 203 and the second semi-cylinder 205, and the two helical blades 213 are respectively fixedly connected to the first shaft 211 and the second shaft 212; the variable frequency motor 214 is installed on one side of the housing 201, and the power output shaft of the variable frequency motor 214 is fixedly connected to the first shaft 211; the two connecting gears 215 are fixedly connected to the first shaft 211 and the second shaft 212, and the two connecting gears 215 are connected.

[0053] Specifically, when the variable frequency motor 214 is running, it will drive the first shaft 211 to rotate, which in turn drives the second shaft 212 to rotate via two connecting gears 215. When the first shaft 211 and the second shaft 212 rotate, they will drive the two spiral blades 213 to rotate.

[0054] When the first shaft 211 and its spiral blade 213 rotate, they will push the lavender in the first semi-cylinder 203 to move closer to the first discharge pipe 204; when the second shaft 212 and its spiral blade 213 rotate, they will push the lavender in the second semi-cylinder 205 to move closer to the second discharge pipe 207.

[0055] like Figure 3 and Figure 4 As shown, the transmission assembly includes two gear rings 224, a pinion 225, a crossbar 226, and a transmission belt 227. The two gear rings 224 are respectively fixedly sleeved on two hollow cylinders 223; the pinion 225 is meshed with the two gear rings 224; one end of the crossbar 226 is fixedly connected to the pinion 225, and the other end of the crossbar 226 is rotatably connected to the inner wall of the housing 201; pulleys are fixedly sleeved on both the crossbar 226 and the first shaft 211, and the transmission belt 227 is sleeved on the two pulleys.

[0056] Specifically, when the first shaft 211 rotates, it drives the crossbar 226 to rotate via the transmission belt 227, which in turn drives the pinion 225 to rotate, which in turn meshes with and drives the two gear rings 224 to rotate. When the two gear rings 224 rotate, they will simultaneously drive the two hollow cylinders 223 to rotate.

[0057] like Figure 5 As shown, the continuous frequency conversion lavender distillation and extraction equipment also includes a stirring mechanism 230, which includes a horizontal shaft 231 and multiple stirring plates 232.

[0058] The horizontal shaft 231 is rotatably connected to the housing 201 and the water storage tank 302, and one end of the horizontal shaft 231 is fixedly connected to the second shaft 212; multiple stirring plates 232 are all located inside the water storage tank 302, and multiple stirring plates 232 are all fixedly connected to the horizontal shaft 231. The water pumping pipe 303 of the steam generator 301 extends into the water storage tank 302, and the steam exhaust pipe 304 of the steam generator 301 is sealed to the hollow plate 222.

[0059] Specifically, when the steam containing lavender essential oil enters the exhaust pipe 209, the steam containing lavender essential oil will come into contact with the exhaust pipe 209, and the steam containing lavender essential oil will transfer heat to the exhaust pipe 209, and the exhaust pipe 209 will transfer heat to the water in the water storage tank 302, thereby raising the temperature of the water, which makes it easier to reduce the energy consumption required for the steam generator 301 to produce steam.

[0060] Furthermore, when the second shaft 212 rotates, it will drive the horizontal shaft 231 and the stirring plate 232 to rotate, thereby stirring the water in the water storage tank 302 and making the water temperature uniform.

[0061] like Figure 2 As shown, support seats 101 are installed at the four corners of the bottom surface of the base plate 100. Each support seat 101 has a height adjustment function. The support seat 101 with height adjustment function is a mature existing technology. Its working principle and specific structure will not be described in detail here.

[0062] Specifically, by setting four support seats 101 with height adjustment function, it is convenient to adjust the tilt angle of the base plate 100. When the base plate 100 is tilted, the two hollow tubes 223 will also be tilted, which also makes it easy to remove the lavender that has fallen into the hollow tubes 223.

[0063] The maximum tilt angle of the base plate 100 is ≤4°, which is only used to assist in the discharge of a small amount of tail material remaining in the hollow cylinder 223 and does not affect the normal conveying of the spiral blade 213.

[0064] Working principle: Before use, connect the exhaust pipe 209 to the external condenser.

[0065] In practical use, the lavender that needs to be cut and steam-extracted is added into the feed hopper 202. Then, by activating the rotary sealing feed valve 2021 on the feed hopper 202, the lavender in the feed hopper 202 falls into the first semi-cylinder 203. Then, by activating the steam generator 301, the steam generator 301 draws water from the water storage tank 302 and then generates steam. The steam is then transported to the hollow plate 222 through the steam exhaust pipe 304. The steam in the hollow plate 222 will enter the two hollow cylinders 223, and the steam in the hollow cylinders 223 will be discharged through the air blowing hole 2231.

[0066] By starting the variable frequency motor 214, the power output shaft of the variable frequency motor 214 drives the first shaft 211 to rotate, which in turn drives the second shaft 212 to rotate via two connecting gears 215. When the first shaft 211 and the second shaft 212 rotate, they will drive the two spiral blades 213 to rotate.

[0067] When the first shaft 211 and its spiral blades 213 rotate, they will push the lavender in the first semi-cylinder 203 toward the direction of the first discharge pipe 204, so that the lavender in the first semi-cylinder 203 will fall into the second semi-cylinder 205 through the first discharge pipe 204.

[0068] When the second shaft 212 and its spiral blades 213 rotate, they push the lavender inside the second semi-cylinder 205 through the second discharge pipe 207 into the sealed spiral discharge pipe 208. Then, by activating the sealed spiral discharge pipe 208, the lavender inside, after steam extraction, is discharged.

[0069] As the lavender moves within the first semi-cylinder 203 and the second semi-cylinder 205, the steam blown out from the air outlet 2231 comes into contact with the lavender, thereby extracting the lavender through the steam. The steam containing lavender essential oil enters the exhaust pipe 209, and then enters the condenser connected to the exhaust pipe 209. Since the exhaust pipe 209 is in contact with the water in the water tank 302, the temperature of the exhaust pipe 209 is much lower than the temperature of the steam containing lavender essential oil, which allows the steam containing lavender essential oil to condense into a liquid. Then, the steam and liquid containing lavender essential oil enter the condenser, where the condenser condenses all the steam containing lavender essential oil into a liquid, and then the oil and water in the liquid are separated by an external oil-water separator.

[0070] When the variable frequency motor 214 is running, it will drive the first shaft 211 to rotate. When the first shaft 211 rotates, it will drive the crossbar 226 to rotate through the transmission belt 227, which in turn drives the pinion 225 to rotate, which in turn meshes and drives the two gear rings 224 to rotate. When the two gear rings 224 rotate, they will synchronously drive the two hollow cylinders 223 to rotate.

[0071] Furthermore, by setting a spiral steam guide plate 2232 inside the hollow cylinder 223, the steam guide plate 2232 rotates synchronously with the hollow cylinder 223. After the steam enters the hollow cylinder 223, it forms a spiral airflow under the guidance of the rotation of the steam guide plate 2232. Combined with the circumferential sweeping of the air outlet, the steam is spirally wrapped and contacts the lavender inside the cylinder. By utilizing the rotational power of the hollow cylinder 223 to enhance the spiral diffusion effect of the steam, the contact area is increased compared with traditional direct injection steam, which also solves the problem of insufficient steam penetration of the inner layer of lavender and improves the steam extraction effect of lavender.

[0072] Continuous steam extraction of lavender can be achieved through automatic conveying and automatic discharge of lavender.

[0073] Example 2: Figure 6 , Figure 8 and Figure 9 As shown, while all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0074] A slag discharge pipe is installed on the portion of the steam drain pipe 304 located outside the housing 201, and a sealing cap is installed on the slag discharge pipe. The slag discharge pipe and sealing cap facilitate the removal of debris from the steam drain pipe 304.

[0075] A rotating rod 3041 is rotatably connected inside the steam pipe 304. A scraper 3042 is installed on the rotating rod 3041. A fourth bevel gear 3043 is fixedly sleeved on the rotating rod 3041.

[0076] The continuous frequency conversion lavender distillation and extraction equipment also includes a cleaning mechanism 310, which includes a reducer 311, a fixing frame 316, and a vertical rod 315.

[0077] The reducer 311 is connected to the inner bottom surface of the housing 201 via the connecting seat 312. A driven gear 313 is mounted on the input shaft of the reducer 311, and a first bevel gear 314 is mounted on the output shaft of the reducer 311. The driven gear 313 meshes with the connecting gear 215. The fixing bracket 316 is fixedly connected to the connecting seat 312. The vertical rod 315 is rotatably connected to the fixing bracket 316 and the steam pipe 304. A second bevel gear 317 and a third bevel gear 318 are respectively mounted at its two ends. The second bevel gear 317 meshes with the first bevel gear 314, and the third bevel gear 318 meshes with the fourth bevel gear 3043. The scraper 3042 is made of high-temperature resistant nylon. The gap between the scraper 3042 and the inner wall of the steam pipe 304 is 0.5-1mm, and the edge of the blade is rounded to avoid scratching the pipe wall.

[0078] Specifically, a sealing box 3044 is also provided inside the steam pipe 304. The third bevel gear 318 and the fourth bevel gear 3043 are both located inside the sealing box 3044. The vertical rod 315 and the rotating rod 3041 are rotatably connected to the sealing box 3044.

[0079] Working principle: In actual use, when steam extracting lavender, the operation of the variable frequency motor 214 will drive the first shaft 211 to rotate, which in turn drives the connecting gear 215 to rotate. The connecting gear 215 will drive the driven gear 313 to rotate, which in turn drives the output shaft of the reducer 311 to rotate. This, in turn, drives the vertical rod 315 to rotate through the first bevel gear 314 and the second bevel gear 317. This, in turn, drives the rotating rod 3041 to rotate through the third bevel gear 318 and the fourth bevel gear 3043. When the rotating rod 3041 rotates, the scraper 3042 will also rotate. The rotating scraper 3042 will clean the steam pipe 304, thereby removing the debris attached to the steam pipe 304.

[0080] Example 3: As Figures 1 to 9 As shown, the working method of the continuous frequency conversion lavender distillation and extraction equipment includes the following steps:

[0081] Step 1: Seal the end of the exhaust pipe 209 away from the water storage tank 302 to the external condenser to ensure that the condensation channel containing essential oil vapor is unobstructed; add clean water to the water storage tank 302 to the preset liquid level (the liquid level is higher than the inlet of the water pump pipe 303) to provide water for the steam generator 301;

[0082] Step 2: Start the rotary sealing feed valve 2021 on the feed hopper 202 and add the chopped lavender to the feed hopper 202 at a uniform speed; the rotary sealing feed valve 2021 maintains the seal of the feed port while conveying the raw material, so that the raw material falls accurately into the first semi-cylinder 203 through the valve port, realizing continuous feeding and no steam overflow.

[0083] Step 3: Start the variable frequency motor 214 on one side of the housing 201. The power output shaft of the variable frequency motor 214 drives the first shaft 211 to rotate. The first shaft 211 drives the second shaft 212 to rotate synchronously through two meshing connecting gears 215, thereby driving the spiral blades 213 in the first semi-cylinder 203 and the second semi-cylinder 205 to rotate, thus establishing the material conveying power.

[0084] Start the steam generator 301. The steam generator 301 draws water from the water storage tank 302 through the water pumping pipe 303 and heats it to generate steam. The steam is delivered to the hollow plate 222 through the steam exhaust pipe 304 and then distributed from the hollow plate 222 to the hollow cylinder 223 that is fitted outside the two semi-cylinders.

[0085] At the same time, the first shaft 211 drives the crossbar 226 to rotate through the transmission belt 227. The small gear 225 at the end of the crossbar 226 meshes with the toothed ring 224 on the two hollow cylinders 223, driving the two hollow cylinders 223 to rotate synchronously. The spiral steam guide plate 2232 inside the hollow cylinder 223 rotates synchronously with the cylinder.

[0086] Step 4: The spiral blades 213 inside the first semi-cylinder 203 push the raw material toward the first discharge pipe 204. At the same time, the spiral guide plate inside the hollow cylinder 223 guides the steam to form a spiral airflow that is consistent with the spiral blades 213. The steam sweeps the raw material around the circumference through the air blowing hole 2231. The steam penetrates the raw material layer through the air vent 206 and initially extracts lavender essential oil.

[0087] The material falls into the second semi-cylinder 205 below through the first discharge pipe 204. The second shaft 212 drives the spiral blades 213 to push the raw material to the second discharge pipe 207. The spiral steam of the same specification continuously surrounds the raw material in the second semi-cylinder 205 to further extract the essential oil of lavender.

[0088] Step 5: The steam containing lavender essential oil enters the exhaust pipe 209 from the top of the box 201. The part of the exhaust pipe 209 that passes through the water storage tank 302 is in full contact with the water. The steam transfers heat to the water and initially condenses into droplets. The second shaft 212 drives the horizontal shaft 231 and the stirring plate 232 to rotate, so that the water temperature in the water storage tank 302 is uniform and local overheating is avoided, which affects the condensation efficiency.

[0089] Step 6: Start the sealed spiral discharge pipe 208 to discharge the tail material to the designated collection device;

[0090] Step 7: When the variable frequency motor 214 drives the connecting gear 215 to rotate, it meshes with the driven gear 313 of the cleaning mechanism 310. After being reduced in speed by the reducer 311, it drives the vertical rod 315 to rotate through the first bevel gear 314 and the second bevel gear 317. The vertical rod 315 drives the rotating rod 3041 in the steam pipe 304 to rotate through the third bevel gear 318 and the fourth bevel gear 3043.

[0091] The scraper 3042 on the rotating rod 3041 rotates with the rod, and the scraper 3042 cleans the debris attached to the pipe wall; the slag discharge pipe sealing cover on the steam pipe 304 is opened periodically, and the cleaned debris is removed through the slag discharge pipe to ensure smooth steam delivery.

[0092] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0093] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A continuous frequency conversion lavender distillation and extraction device, comprising a housing, a steam generator, and a water tank mounted on the top surface of a base plate, wherein a feed hopper and a sealed spiral discharge pipe are installed on the housing, characterized in that, Also includes: The first semi-cylinder is installed inside the box, and the first discharge pipe is installed on it; The second semi-cylinder is located directly below the first semi-cylinder, and a second discharge pipe is installed on it. The second discharge pipe is connected to the sealing spiral discharge pipe. Both the first and second semi-cylinders have multiple vent holes. An exhaust pipe passes through the water storage tank, is sealed to the tank body, and is internally connected; A conveying mechanism is used to convey the material inside the first semi-cylinder into a sealed spiral discharge pipe; Steam purging mechanism, comprising: The mounting base is installed inside the box, and two hollow cylinders are rotatably connected to it. The two hollow cylinders are respectively fitted onto the first semi-cylinder and the second semi-cylinder. The inner wall of the hollow cylinder has multiple air blowing holes distributed circumferentially. The hollow cylinder is used to receive steam delivered by the steam generator. A transmission assembly is used to transmit the driving force of the conveying mechanism to the two hollow cylinders, causing the two hollow cylinders to rotate.

2. The continuous frequency conversion lavender distillation and extraction equipment according to claim 1, characterized in that, The steam purging mechanism further includes: A hollow plate, rotatably connected to and communicating with the two hollow cylinders, is used to guide the steam delivered by the steam generator into the two hollow cylinders; Two steam guide plates are installed inside the two hollow cylinders respectively, and the steam guide plates are spiral-shaped.

3. The continuous frequency conversion lavender distillation and extraction equipment according to claim 1, characterized in that, The conveying mechanism includes: The first shaft is rotatably connected to the first semi-cylinder and the box body; The second shaft is rotatably connected to the second semi-cylinder and the box body; Two helical blades are located inside the first semi-cylinder and the second semi-cylinder, respectively, and are fixedly connected to the first shaft and the second shaft, respectively; A variable frequency motor is installed on one side of the housing, and its power output shaft is fixedly connected to the first shaft. Two connecting gears are fixedly connected to the first shaft and the second shaft, respectively, and the two connecting gears are connected.

4. The continuous frequency conversion lavender distillation and extraction equipment according to claim 3, characterized in that, The transmission assembly includes: Two toothed rings are respectively fixedly sleeved on the two hollow cylinders; The pinion meshes with the two gear rings; A crossbar, one end of which is fixedly connected to the pinion, and the other end of which is rotatably connected to the inner wall of the box; The drive belt is fitted onto the crossbar and the first shaft.

5. The continuous frequency conversion lavender distillation and extraction equipment according to claim 3, characterized in that, It also includes a stirring mechanism, which comprises: A horizontal shaft is rotatably connected to the box body and the water storage tank, and one end of it is fixedly connected to the second shaft. Multiple stirring plates are located inside the water storage tank and are fixedly connected to the horizontal axis.

6. The continuous frequency conversion lavender distillation and extraction equipment according to claim 5, characterized in that, The water pumping pipe of the steam generator extends into the water storage tank, and the steam exhaust pipe of the steam generator is connected to the hollow plate.

7. The continuous frequency conversion lavender distillation and extraction equipment according to claim 6, characterized in that, A rotating rod is rotatably connected inside the steam pipe, a scraper is installed on the rotating rod, and a fourth bevel gear is fixedly sleeved on the rotating rod.

8. The continuous frequency conversion lavender distillation and extraction equipment according to claim 7, characterized in that, It also includes a cleaning facility, which comprises: The reducer is connected to the inner bottom surface of the housing via a connecting seat. A driven gear is mounted on its input shaft, and a first bevel gear is mounted on its output shaft. The driven gear meshes with the connecting gear. The fixing bracket is fixedly connected to the connecting seat; The vertical rod is rotatably connected to the fixed frame and the steam pipe, and a second bevel gear and a third bevel gear are respectively installed at its two ends. The second bevel gear is meshed with the first bevel gear, and the third bevel gear is meshed with the fourth bevel gear.

9. The continuous frequency conversion lavender distillation and extraction equipment according to claim 1, characterized in that, Also includes: A rotary sealing feed valve is installed on the feed hopper; All four support bases are installed on the bottom surface of the base plate and all have height adjustment function.

10. The method of using the continuous frequency conversion lavender distillation and extraction equipment according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Add clean water to the water storage tank until the liquid level is higher than the preset position of the water inlet of the pump pipe; Step 2: Start the rotary sealing feed valve and add the chopped lavender into the feed hopper at a uniform speed. The rotary sealing feed valve maintains the seal at the feed inlet while conveying the raw material, so that the raw material falls into the first semi-cylinder. Step 3: Start the variable frequency motor to drive the first shaft to rotate. The first shaft drives the second shaft to rotate synchronously through the connecting gear, which in turn drives the spiral blades to rotate. Then start the steam generator. The steam generator draws water from the water storage tank to generate steam. The steam is delivered to the hollow plate through the steam pipe and then distributed to the hollow cylinder. At the same time, the first shaft drives the crossbar to rotate through the transmission belt, and the crossbar drives the hollow cylinder to rotate through the meshing of the pinion and the gear ring, so that the spiral steam guide plate inside the cylinder rotates synchronously. Step 4: The spiral blades inside the first semi-cylinder push the raw material toward the first discharge pipe. The spiral guide plate inside the hollow cylinder guides the steam to form a spiral airflow, which sweeps the raw material through the air blowing hole and penetrates the air vent to complete the initial extraction. The raw material falls into the second semi-cylinder through the first discharge pipe. The second shaft drives the spiral blades to move the raw material. The spiral steam continuously surrounds the raw material to complete the further extraction. Step 5: The steam containing lavender essential oil enters the exhaust pipe. The exhaust pipe comes into contact with the water in the storage tank, causing the steam to condense initially. The second shaft drives the horizontal shaft and the stirring plate to rotate, making the water temperature uniform. Step 6: Start the sealed spiral discharge pipe to discharge the distilled tailings to the designated collection device.

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