A plant essential oil hot air circulation distillation device

Abstract

The invention discloses a plant essential oil hot air circulation distillation device in the technical field of plant essential oil extraction, comprising a distillation box, wherein a hot air circulation system and a condensation system are arranged on the left side of the distillation box; a mesh plate is fixedly connected to the inner wall of the distillation box; a discharge port and a feed port are opened on the right side wall of the distillation box; the bottom end of the discharge port is flush with the top surface of the mesh plate, and the feed port is located above the discharge port; a first baffle plate for sealing the discharge port and the feed port is arranged on the inner sides of the discharge port and the feed port; the first baffle plate is slidably connected to the inner wall of the distillation box in the vertical direction; a first storage box and a second storage box are respectively arranged on the outer sides of the discharge port and the feed port; the right ends of the first storage box and the second storage box are each provided with a second baffle plate for sealing the first storage box and the second storage box; the invention can greatly improve the extraction efficiency of plant essential oil.

Description

Technical Field

[0001] The invention relates to the technical field of plant essential oil extraction, in particular to a plant essential oil hot air circulation distillation device. Background Art

[0002] Plant essential oils are secondary metabolites produced during the growth process of plants. Most of them have aromatic smells and are traditionally used as flavoring and fragrance agents. Modern research has found that plant essential oils have multiple biological activities such as antibacterial, anti-inflammatory, insecticidal, antioxidant, prevention and treatment of cardiovascular diseases, and immune regulation. They can be used in medical care, food industry, cosmetics, agriculture and other fields.

[0003] In the prior art, most of the essential oils are extracted by steam distillation, and water needs to be continuously replenished during the steam distillation process, which consumes a lot of water resources. Some of them also use inert gas distillation, and the heated inert gas can evaporate the essential oils, and then the essential oil gas is liquefied into liquid in the condensation system. Since the liquefaction temperature of the inert gas is relatively low, it will not be liquefied when passing through the condensation system. Because the inert gas can be recycled, the extraction efficiency of the essential oil can be improved. However, when the inert gas is used for circulating distillation, it is necessary to fill the distillation box with inert gas to exhaust the air in the distillation box. After the distillation is completed, the distillation box needs to be opened to take out the plant residue. When the distillation is just completed, the heated gas in the distillation box will quickly overflow from the distillation box. When a small batch (single) of essential oil is extracted, the overflow of inert gas is not a big deal, but when a large batch (multiple) of essential oil is extracted, the inert gas needs to be filled again each time the material is changed, which will greatly reduce the efficiency of essential oil extraction.

[0004] Based on this, the present invention designs a plant essential oil hot air circulation distillation device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a plant essential oil hot air circulation distillation device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a plant essential oil hot air circulation distillation device, comprising a distillation box, a hot air circulation system and a condensation system are arranged on the left side of the distillation box; a mesh plate is fixedly connected to the inner wall of the distillation box; a discharge port and a feed port are opened on the right side wall of the distillation box; the bottom end of the discharge port is flush with the top surface of the mesh plate, and the feed port is located above the discharge port; the inner sides of the discharge port and the feed port are both provided with a first baffle for sealing the discharge port and the feed port; the first baffle is vertically aligned with the inner wall of the distillation box Upward sliding connection; the first storage box and the second storage box are respectively arranged on the outer sides of the discharge port and the feed port; the right ends of the first storage box and the second storage box are each provided with a second baffle for sealing the first storage box and the second storage box; the second baffle is slidably connected to the right side walls of the first storage box and the second storage box in the vertical direction: a pushing assembly is arranged in the distillation box, and a ventilation assembly is arranged in the first storage box and the second storage box, and the ventilation assembly is used to exhaust the gas in the first storage box and the second storage box to the inside or outside of the distillation box.

[0007] As a further solution of the present invention, the pushing assembly includes a first push plate and a linear drive mechanism; the first push plate is slidably connected to the inner wall of the distillation box; the top of the first push plate is rotatably connected to a telescopic baffle, and the top of the telescopic baffle is rotatably connected to the left inner wall of the distillation box; the linear drive mechanism is used to drive the first push plate to move left and right in the distillation box.

[0008] As a further solution of the present invention, the linear drive mechanism includes a cylinder, which is fixedly mounted on the left outer wall of the distillation box, and the output end of the cylinder passes through the side wall of the distillation box and is fixedly connected to the first push plate.

[0009] As a further scheme of the present invention, the ventilation assembly includes a ventilation cylinder and a driving assembly; the ventilation cylinder is fixedly connected to the first storage box; a first one-way valve that can be communicated with the ventilation cylinder is provided on the left side of the ventilation cylinder, and the first one-way valve is fixedly installed on the first baffle; the ventilation cylinder is fixedly connected to an air outlet pipe, the top of the air outlet pipe passes through the top of the first storage box and extends to the outside of the first storage box, and a second one-way valve is fixedly installed in the air outlet pipe; air holes are provided on the left and right side walls of the ventilation cylinder, and sealing spring plates are provided on the inner sides of the air holes, and the sealing spring plates are slidably connected to the ventilation cylinder in the vertical direction, and the bottom ends of the sealing spring plates are rotatably connected to the first connecting rod, and the two first connecting rods are rotatably connected to the sliding sleeve together The sliding sleeve is arranged on the outside of the ventilation cylinder; a first traction rope is fixedly connected to the left side wall of the sliding sleeve, and a first push block is fixedly connected to the left end of the first traction rope, and the first push block is slidably connected to the distillation box in the front and rear directions, and a first wedge block for driving it to move backward is arranged on the side of the first push block, and the first wedge block is fixedly connected to the first baffle; a second traction rope is fixedly connected to the right side wall of the sliding sleeve, and a second push block is fixedly connected to the right end of the second traction rope, and a second wedge block for driving it to move right is arranged on the side of the second push block, and the second wedge block is fixedly connected to the second baffle; a piston is slidably installed in the ventilation cylinder; the driving assembly is used to drive the piston to circulate in the ventilation cylinder.

[0010] As a further solution of the present invention, the driving assembly includes a push rod and a turntable; the push rod is fixedly connected to the piston, and the push rod is slidably connected to the first storage box in the left and right directions; a return spring for its return is fixedly connected to the push rod; the top of the push rod extends to the outside of the first storage box and is rotatably connected to the second connecting rod; the push rod is fixedly connected to a sealing plate; the turntable is rotatably connected to the top of the first storage box, a fixed column is fixedly connected to a non-center position on the turntable, the fixed column is rotatably connected to the right end of the second connecting rod, and the rotating shaft of the turntable is fixedly connected to the first connecting rod. A sprocket, the first sprocket is connected to the second sprocket through a chain transmission, a winding roller is fixedly connected to the rotating shaft of the second sprocket; a ruler spring for resetting the winding roller is fixedly provided on the winding roller; the winding roller is rotatably connected to the first storage box; a third traction rope is wound around the winding roller; one end of the third traction rope is fixedly connected to the winding roller, and the other end is fixedly connected to a slide plate, the slide plate is slidably connected to the outer wall of the distillation box, and a fourth traction rope is fixedly connected to the slide plate; the left end of the fourth traction rope passes through the left side wall of the distillation box and extends into the distillation box and is fixedly connected to the first push plate.

[0011] As a further solution of the present invention, the bottom surfaces of the first storage box and the second storage box are both configured as inclined surfaces.

[0012] As a further solution of the present invention, the hot air circulation system includes a circulation pipe and a circulation fan; the top and bottom ends of the circulation pipe are respectively located above and below the mesh plate, and the circulation fan is fixedly installed on the circulation pipe.

[0013] As a further solution of the present invention, the condensation system includes a condenser, and the condenser is fixedly installed on the circulation pipeline.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention can replace plant materials without opening the distillation box through the arrangement of the first storage box, the second storage box, the pushing assembly and the ventilation assembly. After the plant materials are replaced, it can be ensured that no external air enters the distillation box and the inert gas in the distillation box will not be lost, which can greatly improve the extraction efficiency of plant essential oils. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention (the hot air circulation system and the condensation system are hidden);

[0018] Figure 3 It is a schematic diagram of the positional relationship and connection relationship between the ventilation assembly and the first baffle, the first material storage box and the second baffle of the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0020] Figure 5 It is a schematic cross-sectional view of a part of the structure of the ventilation assembly of the present invention;

[0021] Figure 6 The figure is a schematic diagram of the connection and position relationship among the push rod, the rotating disk, the second connecting rod and the fixed column of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] Distillation box 1, mesh plate 2, discharge port 3, feed port 4, first baffle 5, first storage box 6, second storage box 7, second baffle 8, first push plate 9, telescopic baffle 10, cylinder 11, ventilation cylinder 12, first one-way valve 13, air outlet pipe 14, second one-way valve 15, air hole 16, sealing spring 17, first connecting rod 18, sliding sleeve 19, first traction rope 20, first push block 21, first wedge block 22, second traction rope 23, second push block 24, second wedge block 25, piston 26, push rod 27, turntable 28, return spring 29, second connecting rod 30, sealing plate 31, fixed column 32, first sprocket 33, chain 34, second sprocket 35, winding roller 36, third traction rope 37, slide plate 38, fourth traction rope 39, circulation pipeline 40, circulation fan 41, condenser 42. DETAILED DESCRIPTION

[0024] See also Figure 1-6 The present invention provides a technical solution: a plant essential oil hot air circulation distillation device, comprising a distillation box 1, a hot air circulation system and a condensation system are arranged on the left side of the distillation box 1; a mesh plate 2 is fixedly connected to the inner wall of the distillation box 1; a discharge port 3 and a feed port 4 are opened on the right side wall of the distillation box 1; the bottom end of the discharge port 3 is flush with the top surface of the mesh plate 2, and the feed port 4 is located above the discharge port 3; the inner sides of the discharge port 3 and the feed port 4 are both provided with a first baffle 5 for sealing the discharge port 3 and the feed port 4; the first baffle 5 slides vertically with the inner wall of the distillation box 1 Connection; the outer sides of the discharge port 3 and the feed port 4 are respectively provided with a first storage box 6 and a second storage box 7; the right ends of the first storage box 6 and the second storage box 7 are provided with a second baffle 8 for sealing the first storage box 6 and the second storage box 7; the second baffle 8 is slidably connected to the right side walls of the first storage box 6 and the second storage box 7 in the vertical direction: a pushing assembly is provided in the distillation box 1, and the first storage box 6 and the second storage box 7 are provided with a ventilation assembly, and the ventilation assembly is used to exhaust the gas in the first storage box 6 and the second storage box 7 to the inside or outside of the distillation box 1.

[0025] When doing specific work, such as Figure 1 and Figure 2As shown, before the extraction of plant essential oil is required, first check whether the device is leaking, etc.; then put the plant material into the distillation box 1 from the top, the plant material will stay on the mesh plate 2, and then the top cover of the distillation box 1 is sealed, and then a certain amount of inert gas is filled into the device; start the heating system at the bottom of the distillation box 1, the heating system will heat the inert gas in the distillation box 1, the heated inert gas can heat the plant material, and the essential oil in the plant material will vaporize to form steam; then start the hot air circulation system and the condensation system, the hot air circulation system will extract the inert gas in the distillation box from above the mesh plate 2, and the inert gas will be transported back to the distillation box 1 after passing through the condensation system, and the inert gas will flow back to the distillation box from the bottom of the mesh plate 2. 1; the plant essential oil will be liquefied after passing through the condensation system, and the inert gas returned to the distillation box 1 will no longer be mixed with essential oil vapor; when working in the distillation box 1, the two first baffles 5 respectively cover the discharge port 3 and the feed port 4; the inert gas in the distillation box 1 will not overflow from the discharge port 3 and the feed port 4; at this time, the staff can control the linear motor to drive the two second baffles 8 to move upward, and then put the plant material to be distilled next time into the second storage box 7, and then close the two second baffles 8; when the distillation box 1 is performing distillation work, the pushing assembly will start to work, and the pushing assembly will squeeze the plant material in the distillation box 1, so that the plant essential oil can flow out faster; when the next plant material is put into the second storage box 7, the second baffle 8 After closing, the pushing assembly will cooperate with the ventilation assembly to discharge the air in the first storage box 6 and the second storage box 7 to the outside; this can prevent the outside air from mixing into the inert gas when the plant material is replaced later; when the distillation of the plant material in the distillation box 1 is completed, the staff can control the linear motor to drive the first baffle 5 below to move upward first, and then the pushing assembly will push the plant material on the mesh plate 2 to the right, and the plant material will enter the first storage box 6 from the discharge port 3; then the first baffle 5 can be closed again, and then the linear motor will drive the upper first baffle 5 to move upward, and then the plant material in the second storage box 7 will fall onto the mesh plate 2 in the distillation box 1; at this time, part of the inert gas in the distillation box 1 will flow to the first storage box Box 6 and the second storage box 7. After the plant material in the second storage box 7 falls onto the mesh plate 2, the staff controls the linear motor to drive the first baffle 5 above to move downward to close the feed port 4; then when the pushing assembly works again, the ventilation assembly will discharge the inert gas in the first storage box 6 and the second storage box 7 into the distillation box 1; it can ensure that the inert gas in the distillation box 1 will not be lost; the present invention can replace the plant material without opening the distillation box 1 through the arrangement of the first storage box 6, the second storage box 7, the pushing assembly and the ventilation assembly, and after the plant material is replaced, it can be ensured that the distillation box 1 will not enter the external air and the inert gas in the distillation box 1 will not be lost, which can greatly improve the extraction efficiency of the plant essential oil.

[0026] As a further solution of the present invention, the pushing assembly includes a first push plate 9 and a linear drive mechanism; the first push plate 9 is slidingly connected to the inner wall of the distillation box 1; the top of the first push plate 9 is rotatably connected to a telescopic baffle 10, and the top of the telescopic baffle 10 is rotatably connected to the left inner wall of the distillation box 1; the linear drive mechanism is used to drive the first push plate 9 to move left and right in the distillation box 1.

[0027] When doing specific work, such as Figure 2 As shown, the linear drive mechanism can drive the first push plate 9 to move in a circular motion in the left and right directions; when the first baffle plate 5 below closes the discharge port 3, the first push plate 9 will cooperate with the first baffle plate 5 below to squeeze the plant material, which can accelerate the outflow of the essential oil in the plant material; when the first baffle plate 5 moves upward to open the discharge port 3, the first push plate 9 moves to the right to push the plant material from the discharge port 3 to the first storage box 6; by setting the telescopic baffle 10, it can be ensured that the plant material will not fall to the left side of the first push plate 9, so that the replacement of the plant material can be more thorough.

[0028] As a further solution of the present invention, the linear drive mechanism includes a cylinder 11, which is fixedly mounted on the left outer wall of the distillation box 1, and the output end of the cylinder 11 passes through the side wall of the distillation box 1 and is fixedly connected to the first push plate 9.

[0029] When doing specific work, such as Figure 2 As shown, the first push plate 9 can be driven to cyclically move in the left-right direction by the extension and contraction of the cylinder 11.

[0030] As a further solution of the present invention, the ventilation assembly includes a ventilation cylinder 12 and a driving assembly; the ventilation cylinder 12 is fixedly connected to the first storage box 6; a first one-way valve 13 that can be communicated with the ventilation cylinder 12 is arranged on the left side of the ventilation cylinder 12, and the first one-way valve 13 is fixedly installed on the first baffle 5; the ventilation cylinder 12 is fixedly connected to an air outlet pipe 14, the top of the air outlet pipe 14 passes through the top of the first storage box 6 and extends to the outside of the first storage box 6, and a second one-way valve 15 is fixedly connected and installed in the air outlet pipe 14; air holes 16 are opened on the left and right side walls of the ventilation cylinder 12, and sealing springs 17 are arranged on the inner sides of the air holes 16, and the sealing springs 17 are slidably connected to the ventilation cylinder 12 in the vertical direction, and the bottom ends of the sealing springs 17 are rotatably connected to the first connecting rod 18, and the two first connecting rods 18 are rotatably connected to the sliding sleeve 19 together. The sliding sleeve 19 is sleeved on the outside of the ventilation cylinder 12; a first traction rope 20 is fixedly connected to the left side wall of the sliding sleeve 19, and a first push block 21 is fixedly connected to the left end of the first traction rope 20, and the first push block 21 is slidably connected to the distillation box 1 in the front-to-back direction, and a first wedge block 22 for driving it to move backward is arranged on the side of the first push block 21, and the first wedge block 22 is fixedly connected to the first baffle 5; a second traction rope 23 is fixedly connected to the right side wall of the sliding sleeve 19, and a second push block 24 is fixedly connected to the right end of the second traction rope 23, and a second wedge block 25 for driving it to move right is arranged on the side of the second push block 24, and the second wedge block 25 is fixedly connected to the second baffle 8; a piston 26 is slidably installed in the ventilation cylinder 12; the driving assembly is used to drive the piston 26 to circulate in the ventilation cylinder 12.

[0031] When doing specific work, such as Figure 2-5 As shown, when the staff needs to add the plant material for the next distillation into the second storage box 7, the second baffle 8 will drive the second wedge block 25 to move upward synchronously. When the wedge surface of the second wedge block 25 moves upward to contact with the second push block 24, the second wedge block 25 will drive the second push block 24 to move closer to the second baffle 8 through the wedge surface, and the second push block 24 will drive the sliding sleeve 19 to move closer to the second baffle 8 through the second traction rope 23; Figure 5As shown, the sleeve 19 will drive the sealing spring piece 17 on the right side to move upward through the first connecting rod 18 on the right side, and the sealing spring piece 17 on the right side will move to a position where the air hole 16 on the right side can be sealed; the sleeve 19 will drive the sealing spring piece 17 on the left side to move downward to below the air hole 16 on the left side through the first connecting rod 18 on the left side; then the staff can put the plant material for the next distillation into the second storage box 7; it should be noted that if there is waste residue of plant material that has been distilled in the first storage box 6, the plant material residue in the first storage box 6 needs to be taken out after the second baffle 8 is opened; then the driving assembly will drive the piston 26 to circulate in the left and right directions; at this time, the piston 2 When the piston 26 moves to the right, the sealing spring piece 17 will be close to the right inner wall of the ventilation cylinder 12 under the action of pressure. At this time, the air hole 16 on the right side is blocked, and the gas in the ventilation cylinder 12 will be pushed by the piston to enter the outlet pipe 14 from the second one-way valve 15, and then the gas will flow from the outlet pipe 14 to the outside of the first storage box 6 and the second storage box 7; when the piston 26 moves to the left, the air in the first storage box 6 and the second storage box 7 enters the ventilation cylinder 12 from the air hole 16 on the right; the opening of the air hole 16 on the left side can make the movement of the piston 26 smoother; in this working process, the reciprocating movement of the piston 26 can expel the external air that enters the first storage box 6 and the second storage box 7 due to material discharge and discharge. The air is discharged to the outside, which can ensure that the air will not be mixed into the inert gas later; when the outside air is discharged and the plant material needs to be replaced, the staff controls the linear motor to first drive the first baffle plate 5 below to move upward, and the first baffle plate 5 can drive the first wedge block 22 to move upward synchronously. After moving to contact with the first push block 21, the first wedge block 22 will drive the first push block 21 to move backward, and the first push block 21 will drive the sliding sleeve 19 to move left through the first traction rope 20; the sliding sleeve 19 will drive the sealing spring piece 17 on the left to move upward through the first connecting rod 18, and the sealing spring piece on the right to move downward; after the pushing assembly pushes the plant material residue into the first storage box 6, the first baffle plate 5 below will be driven by the first wedge block 22 to move upward synchronously. The plate 5 is closed; then the first baffle plate 5 above is opened to allow the plant material in the second storage box 7 to fall into the distillation box 1, and then the first baffle plate 5 above is closed again; when the plant material in the distillation box 1 is distilled, the driving component drives the piston 26 to reciprocate in the left and right directions, and the piston 26 will discharge the inert gas in the first storage box 6 and the second storage box 7 from the first one-way valve 13 into the distillation box 1, which can ensure that the inert gas will not be lost; when the ventilation component is working, the gas in the first storage box 6 and the second storage box 7 can be discharged cleanly, which can better ensure that the inert gas in the distillation box 1 will not be lost, and no external air will enter the distillation box 1.

[0032] As a further solution of the present invention, the driving assembly includes a push rod 27 and a turntable 28; the push rod 27 is fixedly connected to the piston 26, and the push rod 27 is slidably connected to the first storage box 6 in the left and right directions; a reset spring 29 is fixedly connected to the push rod 27 for its reset; the top of the push rod 27 extends to the outside of the first storage box 6 and is rotatably connected to the second connecting rod 30; the push rod 27 is fixedly connected to a sealing plate 31; the turntable 28 is rotatably connected to the top of the first storage box 6, and a fixed column 32 is fixedly connected to a non-center position on the turntable 28, and the fixed column 32 is rotatably connected to the right end of the second connecting rod 30, and the rotating shaft of the turntable 28 is fixedly connected to the first Sprocket 33, the first sprocket 33 is connected to the second sprocket 35 through a chain 34, and a winding roller 36 is fixedly connected to the rotating shaft of the second sprocket 35; a ruler spring for resetting the winding roller 36 is fixedly provided; the winding roller 36 is rotationally connected to the first storage box 6; a third traction rope 37 is wound around the winding roller 36; one end of the third traction rope 37 is fixedly connected to the winding roller 36, and the other end is fixedly connected to a slide plate 38, and the slide plate 38 is slidably connected to the outer wall of the distillation box 1, and a fourth traction rope 39 is fixedly connected to the slide plate 38; the left end of the fourth traction rope 39 passes through the left side wall of the distillation box 1 and extends into the distillation box 1 and is fixedly connected to the first push plate 9.

[0033] During specific operation, when the first push plate 9 moves to the right, it will drive the left end of the fourth traction rope 39 to move to the right, and the fourth traction rope 39 will drive the slide plate 38 to move to the left; it should be noted that the third traction rope 37 on the first storage box 6 and the second storage box 7 are fixedly connected to the slide plate 38 (that is, when the slide plate 38 moves to the left, it can drive the two third traction ropes 37 to move to the left synchronously), and the right end of the third traction rope 37 will drive the winding roller 36 to rotate, and the winding roller 36 will drive the second sprocket 35 to rotate, and the second sprocket 35 will drive the first sprocket 33 to rotate through the chain 34, and the first sprocket 33 will drive the turntable 28 to rotate When the first push plate 9 moves to the left, the turntable 28 will drive the push rod 27 to do crank-connecting rod movement through the fixed column 32 and the second connecting rod 30. The rotation of the turntable 28 can drive the push rod 27 to reciprocate in the left and right directions through the second connecting rod 30; the setting of the sealing plate 31 can prevent air or inert gas from escaping from the sliding groove of the push rod 27; when the first push plate 9 moves to the left, under the elastic force of the ruler spring and the return spring 29, the winding roller 36 will wind up the third traction rope 37 and drive the slide plate 38 to move back to the initial position to the right, and the return spring 29 will drive the push rod 27 and the piston to move back to the initial position to the left; thereby realizing the reciprocating movement of the piston 26.

[0034] As a further solution of the present invention, the bottom surfaces of the first storage box 6 and the second storage box 7 are both configured as inclined surfaces.

[0035] During specific operation, by setting the bottom surfaces of the first storage box 6 and the second storage box 7 as inclined surfaces, the waste residue in the first storage box 6 can automatically slide out of the first storage box 6; and the plant material in the second storage box 7 can automatically slide into the distillation box 1.

[0036] As a further solution of the present invention, the hot air circulation system includes a circulation duct 40 and a circulation fan 41 ; the top and bottom ends of the circulation duct 40 are respectively located above and below the mesh plate 2 , and the circulation fan 41 is fixedly installed on the circulation duct 40 .

[0037] During specific operation, the hot inert gas in the distillation box 1 is sucked into the circulation pipe 40 from the upper left end of the distillation box 1 through the circulation fan 41. The inert gas will pass through the condensation system along the circulation pipe 40 and then enter the distillation box 1 from the lower left end of the distillation box 1.

[0038] As a further solution of the present invention, the condensation system includes a condenser 42 , and the condenser 42 is fixedly installed on the circulation pipeline 40 .

[0039] During specific operation, the plant essential oil vapor will be liquefied through the condenser 42 in the condensation system, and then after the plant essential oil extraction is completed, the staff will take out the plant essential oil from the condensation system.

[0040] Working principle: Figure 1 and Figure 2As shown, before the extraction of plant essential oil is required, first check whether the device is leaking, etc.; then put the plant material into the distillation box 1 from the top, the plant material will stay on the mesh plate 2, and then the top cover of the distillation box 1 is sealed, and then a certain amount of inert gas is filled into the device; start the heating system at the bottom of the distillation box 1, the heating system will heat the inert gas in the distillation box 1, the heated inert gas can heat the plant material, and the essential oil in the plant material will vaporize to form steam; then start the hot air circulation system and the condensation system, the hot air circulation system will extract the inert gas in the distillation box from above the mesh plate 2, and the inert gas will be transported back to the distillation box 1 after passing through the condensation system, and the inert gas will flow back to the distillation box from the bottom of the mesh plate 2. 1; the plant essential oil will be liquefied after passing through the condensation system, and the inert gas returned to the distillation box 1 will no longer be mixed with essential oil vapor; when working in the distillation box 1, the two first baffles 5 respectively cover the discharge port 3 and the feed port 4; the inert gas in the distillation box 1 will not overflow from the discharge port 3 and the feed port 4; at this time, the staff can control the linear motor to drive the two second baffles 8 to move upward, and then put the plant material to be distilled next time into the second storage box 7, and then close the two second baffles 8; when the distillation box 1 is performing distillation work, the pushing assembly will start to work, and the pushing assembly will squeeze the plant material in the distillation box 1, so that the plant essential oil can flow out faster; when the next plant material is put into the second storage box 7, the second baffle 8 After closing, the pushing assembly will cooperate with the ventilation assembly to discharge the air in the first storage box 6 and the second storage box 7 to the outside; this can prevent the outside air from mixing into the inert gas when the plant material is replaced later; when the distillation of the plant material in the distillation box 1 is completed, the staff can control the linear motor to drive the first baffle 5 below to move upward first, and then the pushing assembly will push the plant material on the mesh plate 2 to the right, and the plant material will enter the first storage box 6 from the discharge port 3; then the first baffle 5 can be closed again, and then the linear motor will drive the upper first baffle 5 to move upward, and then the plant material in the second storage box 7 will fall onto the mesh plate 2 in the distillation box 1; at this time, part of the inert gas in the distillation box 1 will flow to the first storage box Box 6 and the second storage box 7. After the plant material in the second storage box 7 falls onto the mesh plate 2, the staff controls the linear motor to drive the first baffle 5 above to move downward to close the feed port 4; then when the pushing assembly works again, the ventilation assembly will discharge the inert gas in the first storage box 6 and the second storage box 7 into the distillation box 1; it can ensure that the inert gas in the distillation box 1 will not be lost; the present invention can replace the plant material without opening the distillation box 1 through the arrangement of the first storage box 6, the second storage box 7, the pushing assembly and the ventilation assembly, and after the plant material is replaced, it can be ensured that the distillation box 1 will not enter the external air and the inert gas in the distillation box 1 will not be lost, which can greatly improve the extraction efficiency of the plant essential oil.

Claims

1. A plant essential oil hot air circulation distillation device, comprising a distillation box (1), characterized in that: The left side of the distillation box (1) is provided with a hot air circulation system and a condensation system; a mesh plate (2) is fixedly connected to the inner wall of the distillation box (1); a discharge port (3) and a feed port (4) are provided on the right side wall of the distillation box (1); the bottom end of the discharge port (3) is flush with the top surface of the mesh plate (2), and the feed port (4) is located above the discharge port (3); the inner sides of the discharge port (3) and the feed port (4) are both provided with a first baffle (5) for sealing the discharge port (3) and the feed port (4); the first baffle (5) is slidably connected to the inner wall of the distillation box (1) in the vertical direction; the outer sides of the discharge port (3) and the feed port (4) are ... A first material storage box (6) and a second material storage box (7) are respectively arranged on the sides; the right ends of the first material storage box (6) and the second material storage box (7) are each provided with a second baffle plate (8) for sealing the first material storage box (6) and the second material storage box (7); the second baffle plate (8) is slidably connected to the right side walls of the first material storage box (6) and the second material storage box (7) in the vertical direction: a pushing assembly is arranged in the distillation box (1), and the first material storage box (6) and the second material storage box (7) are each provided with a ventilation assembly, and the ventilation assembly is used to exhaust the gas in the first material storage box (6) and the second material storage box (7) into the distillation box (1) or outside the distillation box (1); The pusher assembly comprises a first push plate (9) and a linear drive mechanism; the first push plate (9) is slidably connected to the inner wall of the distillation box (1); the top of the first push plate (9) is rotatably connected to a telescopic baffle (10), and the top of the telescopic baffle (10) is rotatably connected to the left inner wall of the distillation box (1); the linear drive mechanism is used to drive the first push plate (9) to move left and right in the distillation box (1); The ventilation assembly comprises a ventilation cylinder (12) and a driving assembly; the ventilation cylinder (12) is fixedly connected to the first material storage box (6); a first one-way valve (13) capable of communicating with the ventilation cylinder (12) is arranged on the left side of the ventilation cylinder (12), and the first one-way valve (13) is fixedly mounted on the first baffle plate (5); the ventilation cylinder (12) is fixedly connected to an air outlet pipe (14), the top end of the air outlet pipe (14) passes through the top end of the first material storage box (6) and extends to the outside of the first material storage box (6), and the air outlet pipe (14) is fixedly connected to the first material storage box (6). A second one-way valve (15) is fixedly connected and installed in the air outlet pipe (14); air holes (16) are provided on the left and right side walls of the ventilation cylinder (12); a sealing spring sheet (17) is provided on the inner side of the air hole (16); the sealing spring sheet (17) is slidably connected to the ventilation cylinder (12) in the vertical direction; the bottom end of the sealing spring sheet (17) is rotatably connected to a first connecting rod (18); the two first connecting rods (18) are rotatably connected to a sliding sleeve (19); the sliding sleeve (19) 9) is sleeved on the outside of the ventilation cylinder (12); a first traction rope (20) is fixedly connected to the left side wall of the sliding sleeve (19); a first push block (21) is fixedly connected to the left end of the first traction rope (20); the first push block (21) is slidably connected to the distillation box (1) in the front-to-back direction; a first wedge block (22) for driving the first push block (21) to move backward is provided on the side of the first push block (21); the first wedge block (22) is fixedly connected to the first baffle (5); the sliding sleeve A second traction rope (23) is fixedly connected to the right side wall of (19), the right end of the second traction rope (23) is fixedly connected to a second push block (24), the side of the second push block (24) is provided with a second wedge block (25) for driving it to move rightward, and the second wedge block (25) is fixedly connected to the second baffle (8); a piston (26) is slidably installed in the ventilation cylinder (12); the driving assembly is used to drive the piston (26) to circulate in the ventilation cylinder (12).

2. A plant essential oil hot air circulation distillation device according to claim 1, characterized in that: The linear drive mechanism comprises a cylinder (11), which is fixedly mounted on the left outer wall of the distillation box (1), and the output end of the cylinder (11) passes through the side wall of the distillation box (1) and is fixedly connected to the first push plate (9).

3. A plant essential oil hot air circulation distillation device according to claim 1, characterized in that: The driving assembly comprises a push rod (27) and a turntable (28); the push rod (27) is fixedly connected to the piston (26), and the push rod (27) is slidably connected to the first storage box (6) in the left and right directions; a reset spring (29) is fixedly connected to the push rod (27) for its reset; the top end of the push rod (27) extends to the outside of the first storage box (6) and is rotatably connected to the second connecting rod (30); the push rod (27) is fixedly connected to a sealing plate (31); the turntable (28) is rotatably connected to the top of the first storage box (6), a fixed column (32) is fixedly connected to a non-center position on the turntable (28), the fixed column (32) is rotatably connected to the right end of the second connecting rod (30), and a first sprocket (33) is fixedly connected to the rotating shaft of the turntable (28). The first sprocket (33) is connected to the second sprocket (35) through a chain (34), and a winding roller (36) is fixedly connected to the rotating shaft of the second sprocket (35); a ruler spring for resetting the winding roller (36) is fixedly provided on the winding roller (36); the winding roller (36) is rotationally connected to the first storage box (6); a third traction rope (37) is wound around the winding roller (36); one end of the third traction rope (37) is fixedly connected to the winding roller (36), and the other end is fixedly connected to a slide plate (38), the slide plate (38) is slidably connected to the outer wall of the distillation box (1), and a fourth traction rope (39) is fixedly connected to the slide plate (38); the left end of the fourth traction rope (39) passes through the left side wall of the distillation box (1) and extends into the distillation box (1) and is fixedly connected to the first push plate (9).

4. A plant essential oil hot air circulation distillation device according to claim 1, characterized in that: The bottom surfaces of the first material storage box (6) and the second material storage box (7) are both arranged as inclined surfaces.

5. A plant essential oil hot air circulation distillation device according to claim 1, characterized in that: The hot air circulation system comprises a circulation pipe (40) and a circulation fan (41); the top and bottom ends of the circulation pipe (40) are respectively located above and below the mesh plate (2), and the circulation fan (41) is fixedly mounted on the circulation pipe (40).

6. A plant essential oil hot air circulation distillation device according to claim 5, characterized in that: The condensation system comprises a condenser (42), and the condenser (42) is fixedly installed on the circulation pipeline (40).

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