CN218089475U

CN218089475U - Heat recovery type continuous extraction device for plant essential oil

Info

Publication number: CN218089475U
Application number: CN202222300281.5U
Authority: CN
Inventors: 吴斌; 徐�明; 黄伊嘉; 唐宏伟; 莫开林; 杨凌
Original assignee: SICHUAN ACADEMY OF FORESTRY
Current assignee: SICHUAN ACADEMY OF FORESTRY
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-20
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a heat recovery type plant essential oil continuous extraction device, which comprises a mixing drum, wherein a spiral auger is arranged inside the mixing drum, a feed inlet and a discharge outlet are arranged on the mixing drum, a microwave heater is arranged inside the mixing drum, the mixing drum is also communicated with an extraction pipeline, the extraction pipeline is communicated with an oil-water separator through a heat pump, an induced draft fan is also arranged on the extraction pipeline, the induced draft fan is arranged between the heat pump and the mixing drum, the heat pump is communicated with a heat exchanger through a circulating pipeline, and a charging hopper corresponds to the feed inlet; the circulating pipeline is filled with heat exchange medium. Through add the heat pump on drawing the pipeline for the steam accessible heat pump recovery heat that the raw materials was heated and is used for preheating the raw materials in to the loading hopper, thereby reduce the heat input of distillation, realize thermal high-efficient the recovery, and the heat pump is with steam and essential oil condensation when retrieving the heat, has reduced the use of cooling circulation water among the oil water separator, reduces the energy consumption, also can reduce the direct carbon emission among the distillation process.

Description

Heat recovery type continuous extraction device for plant essential oil

Technical Field

The utility model relates to an essential oil extraction element, more specifically the utility model relates to a continuous extraction element of heat recovery type plant essential oil.

Background

The most widely used technology in the production of plant essential oil extraction is the classical steam distillation technology, and in addition, the simultaneous distillation extraction technology, the solvent extraction technology, the microwave steam distillation technology and the like are also used. The heat of input when present plant essential oil extraction all will distill directly discharges in the air, and heat energy loss is serious, and environmental protection in the past requires not strictly, can directly burn the remaining plant residue after distilling when using classical steam distillation technique, because of the thermal waste of fuel cost can be neglected. However, under the current environmental protection requirement, clean energy is needed for heating fuel, the fuel cost is increased, and the problem of heat recovery to reduce energy consumption must be considered. Meanwhile, the current production device for extracting the plant essential oil is intermittent, the labor intensity is high, much labor is needed, and the problems that local overheating of raw materials is easy to self-ignite, the essential oil is lost due to long residence time in a distiller and the like are not considered by a microwave heating source, so that the structure of the plant essential oil extraction device needs to be researched and improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the aforesaid inadequately, provide a continuous extraction element of heat recovery type plant essential oil to it is serious to expect to solve the heat energy loss when the device of the same kind uses among the prior art, leads to the fuel cost to increase, and the fuel high temperature easily produces technical problem such as spontaneous combustion.

In order to solve the technical problem, the utility model adopts the following technical scheme.

The utility model provides a heat recovery type continuous extraction device of plant essential oil, including the churn, the internally mounted of churn has spiral auger, spiral auger is used for being connected with drive arrangement power, be equipped with feed inlet and discharge gate on the churn, the internally mounted of churn has microwave heater, the churn still is linked together with the extraction pipeline, the extraction pipeline is linked together through heat pump and oil-water separator, still install the draught fan on the extraction pipeline, the draught fan is arranged in between heat pump and churn, the heat pump is linked together through circulating line and heat exchanger, the heat exchanger is used for carrying out the heat conduction to the loading hopper, the loading hopper with the feed inlet is corresponding; and a heat exchange medium is filled in the circulating pipeline.

Preferably, the further technical scheme is as follows: and a water replenishing spray head is further installed inside the mixing drum and is close to the discharge port, and the water replenishing spray head is used for being communicated with an external continuous water source.

The further technical scheme is as follows: and a material distributor is arranged on the feeding hole, and an opening of the material distributor corresponds to the lower part of the feeding hopper.

The further technical scheme is as follows: the side wall of the charging hopper is provided with a jacket layer, the jacket layer is communicated with a heat exchanger through a pipeline, and the heat exchanger is used for transmitting heat obtained by heat exchange to the jacket layer through a heat-conducting medium.

The further technical scheme is as follows: the oil-water separator is characterized in that an oil storage unit and a water storage unit which are communicated with each other are arranged in the oil-water separator, the oil storage unit is communicated with the essential oil outlet, and the water storage unit is communicated with the condensed water outlet.

The further technical scheme is as follows: and a screen is arranged at the communicating part of the extraction pipeline and the mixing drum.

Compared with the prior art, the beneficial effects of the utility model are that: through add the heat pump on drawing the pipeline for the steam accessible heat pump recovery heat that the raw materials was heated and is used for preheating the raw materials in to the loading hopper, thereby reduce the heat input of distillation, realize thermal high-efficient the recovery, and the heat pump is with steam and essential oil condensation when retrieving the heat, has reduced the use of cooling circulation water among the oil water separator, reduces the energy consumption, also can reduce the direct carbon emission among the distillation process. Simultaneously the utility model provides a heat recovery type plant essential oil continuous extraction element simple structure is suitable for and installs and use in all kinds of places, and the range of application is wide.

Drawings

Fig. 1 is a schematic structural diagram for explaining an apparatus according to an embodiment of the present invention.

In the figure, 1 is a mixing drum, 101 is a feed inlet, 102 is a discharge outlet, 2 is a spiral auger, 3 is a microwave heater, 4 is an extraction pipeline, 5 is a heat pump, 6 is an oil-water separator, 601 is an oil storage unit, 602 is a water storage unit, 603 is an essential oil outlet, 604 is a condensed water outlet, 7 is an induced draft fan, 8 is a circulating pipeline, 9 is a heat exchanger, 10 is a feed hopper, 11 is a water replenishing spray head, 12 is a material distributor, 13 is a jacket layer, and 14 is a screen mesh.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present invention is a heat recovery type plant essential oil continuous extraction device, which is the same as the similar extraction devices, and comprises a mixing drum 1, wherein one end of the mixing drum 1 is inclined downward as shown in the figure; then a spiral auger 2 is arranged inside the mixing drum 1, the spiral auger 2 needs to be in power connection with a driving device such as a speed reducing motor and the like when in use, and the speed reducing motor drives the spiral auger 2 to continuously rotate inside the mixing drum 1; moreover, a feed inlet 101 and a discharge outlet 102 are also required to be designed on the mixing drum 1, as shown in the figure, the feed inlet 101 is located at the upper end of the mixing drum 1, and the discharge outlet 102 is located at the lower end of the mixing drum 1; meanwhile, a microwave heater 3 is required to be installed inside the mixing drum 1, in practice, in order to ensure the effectiveness of microwave radiation heating, a plurality of microwave heaters 3 can be arranged as shown in the figure and are respectively installed at the front, middle and rear parts in the mixing drum 1, or can be directly installed on the central shaft of the spiral auger 2 as shown in the figure. More importantly, the mixing drum 1 is also communicated with an extraction pipeline 4, the extraction pipeline 4 extends outwards continuously and is communicated with an oil-water separator 6 through a heat pump 5, namely, steam generated in the mixing drum 1 passes through the heat pump 5 through the extraction pipeline and then enters the oil-water separator 6; moreover, in order to reduce the retention time of the steam in the extraction pipeline 4 and reduce the loss of the essential oil, the extraction pipeline 4 can be further provided with the induced draft fan 7, the induced draft fan 7 needs to be arranged between the heat pump 5 and the mixing drum 1, the heat pump 5 needs to be communicated with the heat exchanger 9 through the circulating pipeline 8, the circulating pipeline 8 is filled with a heat exchange medium, so that under the action of the heat pump 5, the heat exchanger 9 can conduct heat to the charging hopper 10, and meanwhile, the charging hopper 10 corresponds to the feeding hole 101. In order to facilitate the raw material in the mixing drum 1 to enter the extraction pipe 4, a screen 14 may be provided in a communication part between the extraction pipe 4 and the mixing drum 1 to prevent the heated raw material from entering the extraction pipe 4 under the negative pressure and blocking the oil-water separator 6.

In this embodiment, through add the heat pump on drawing the pipeline for the steam accessible heat pump recovery heat that the raw materials was heated and is used for preheating the raw materials in to the loading hopper, thereby reduce the heat input of distillation, realize thermal high-efficient recovery, and the heat pump is with steam and essential oil condensation when retrieving the heat, has reduced the use of cooling circulation water among the oil water separator, and the reduction energy consumption also can reduce the direct carbon emission among the distillation process.

The inventor also considers that the temperature of the raw material in the mixing drum is too high after being heated, and spontaneous combustion is easy to occur after the raw material is discharged from the discharge port 102, so that a water supplementing spray head 11 is further arranged in the mixing drum 1, the water supplementing spray head 11 is close to the discharge port 102, the water supplementing spray head 11 needs to be communicated with an external continuous water source when in use, and water mist is sprayed on the raw material subjected to two-stage microwave irradiation under the action of the water supplementing spray head, thereby avoiding the spontaneous combustion risk during microwave irradiation and realizing safe production.

Further, in order to facilitate the material to enter the mixing drum 1 from the hopper 10, a material distributor 12 may be installed on the material inlet 101, the material distributor 12 may be shaped like a funnel, the material may be uniformly discharged into the mixing drum 1 from the material inlet 101, and the opening of the material distributor 12 may correspond to the lower portion of the hopper 10.

The utility model is used for solve an embodiment that above-mentioned technical problem is more preferred, preheat in the raw materials in can in time conduct the heat to the loading hopper 10 for heat exchanger 9, the inventor has improved foretell loading hopper 10 structure, specifically be for add jacket layer 13 on the lateral wall of loading hopper 10, then be linked together through pipeline and heat exchanger 9 at jacket layer 13, make heat exchanger 9 can pass through heat-conducting medium with the heat that the heat transfer obtained and transmit to jacket layer 13 in, and then heat loading hopper 10's inner wall, realize the raw materials heat-conduction. Meanwhile, in order to ensure the uniformity of the heat conduction, a stirring paddle can be arranged inside the feeding hopper 10.

On the other hand, in order to ensure the efficiency of the water-oil separator 6, an oil storage unit 601 and a water storage unit 602 which are communicated with each other may be disposed inside the water-oil separator, wherein the oil storage unit 601 is communicated with the essential oil outlet 603, and the water storage unit 602 is communicated with the condensed water outlet 604.

Based on above-mentioned embodiment and the structure that fig. 1 shows, the utility model discloses an above-mentioned preferred embodiment is in-service use, concentrate plant material and add in loading hopper 10, then plant material gets into material distributor 12 misce bene and gets into churn 1 from having the loading hopper 10 that presss from both sides the cover, move toward discharge gate 102 according to the speed of setting for under the drive of spiral auger 2 in churn 1, produce microwave radiation through microwave heater 3 in the motion process, water and essential oil in the heating material and formation steam, steam gets into heat pump 5 under the effect of draught fan 7 on extraction pipeline 4 and realizes that the heat exchange forms the condensate that essential oil and water mix, the condensate obtains essential oil and moisture along with extraction pipeline 4 entering oil water separator 6 separation and collects respectively. The heat pump 5 collects heat in the steam and then conveys the heat to the heat exchanger 9 through a heat exchange medium in the circulating pipeline 8, and the heat exchanger 9 conveys the heat to the jacket layer 13 of the charging hopper 10 through a heat-conducting medium (such as hot air). So that the plant raw materials are uniformly contacted with the inner wall of the jacket layer under the action of the stirring paddle for preheating. Plant material is after microwave applicator 3 in the middle of 1 inside at the churn, is sprayed water smoke by moisturizing shower nozzle 11 to the raw materials, prevents that the local overdry of raw materials from taking place the spontaneous combustion, still can improve the raw materials moisture content simultaneously through the moisturizing and evaporate out the remaining essential oil of blade in the raw materials under the effect of middle part microwave applicator 3, improves distillation efficiency, and the raw materials is taken out whole device from discharge gate 102 by spiral auger 2 after 3 irradiations of rear end microwave applicator.

In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a continuous extraction element of heat recovery type plant essential oil, includes churn (1), the internally mounted of churn (1) has spiral auger (2), spiral auger (2) are used for being connected with drive arrangement power, be equipped with feed inlet (101) and discharge gate (102) on churn (1), the internally mounted of churn (1) has microwave heater (3), its characterized in that: the mixing drum (1) is further communicated with an extraction pipeline (4), the extraction pipeline (4) is communicated with an oil-water separator (6) through a heat pump (5), an induced draft fan (7) is further installed on the extraction pipeline (4), the induced draft fan (7) is arranged between the heat pump (5) and the mixing drum (1), the heat pump (5) is communicated with a heat exchanger (9) through a circulating pipeline (8), the heat exchanger (9) is used for conducting heat conduction to a feeding hopper (10), and the feeding hopper (10) corresponds to the feeding port (101); and a heat exchange medium is filled in the circulating pipeline (8).

2. The continuous extraction device of heat recovery type plant essential oil according to claim 1, characterized in that: a water replenishing sprayer (11) is further installed inside the mixing drum (1), the water replenishing sprayer (11) is close to the discharge hole (102), and the water replenishing sprayer (11) is used for being communicated with an external continuous water source.

3. The continuous extraction device of heat recovery type plant essential oil according to claim 1, characterized in that: the feeding device is characterized in that a material distributor (12) is installed on the feeding hole (101), and an opening of the material distributor (12) corresponds to the lower portion of the feeding hopper (10).

4. The continuous extraction device of heat recovery type plant essential oil according to claim 1 or 3, characterized in that: be equipped with jacket layer (13) on the lateral wall of loading hopper (10), jacket layer (13) are linked together through pipeline and heat exchanger (9), heat exchanger (9) are used for transmitting the heat that the heat transfer obtained to in jacket layer (13) through heat-conducting medium.

5. The continuous extraction device of heat recovery type plant essential oil according to claim 1, characterized in that: an oil storage unit (601) and a water storage unit (602) which are communicated with each other are arranged in the oil-water separator (6), the oil storage unit (601) is communicated with an essential oil outlet (603), and the water storage unit (602) is communicated with a condensed water outlet (604).

6. The continuous extraction device of heat recovery type plant essential oil according to claim 1, characterized in that: a screen (14) is arranged at the communicating part of the extraction pipeline (4) and the mixing drum (1).