Biological oil extractor

Abstract

The utility model discloses a biological oil extractor which comprises a support rack and an extraction tank body which is arranged on the support rack and is used for feeding biological raw materials and supercritical fluid, and the extraction tank body is provided with a flow guide component which is used for guiding the supercritical fluid to enter and is divided into a plurality of height grades from top to bottom to be dispersed; a driving assembly for driving the flow guide assembly to rotate at a low speed is mounted on the extraction tank body, the flow guide assembly comprises a straight-through pipe rotationally mounted at the top of the extraction tank body, a guide pipe for conveying supercritical fluid is inserted into the top of the straight-through pipe, and a shaft body pipe located in the extraction tank body is connected to the bottom of the straight-through pipe; the outer surface of the shaft body pipe is sleeved with a plurality of stirring structures which are arranged up and down and used for being matched with the driving assembly to guide supercritical fluid in the shaft body pipe to flow into the extraction tank in a diffusion mode. According to the supercritical fluid extraction tank, the uniform distribution of supercritical fluid in the extraction tank body can be effectively improved, and dead zones or non-uniform dissolution and extraction effects in the extraction tank body are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of extractor, specifically is a biological oil extractor. BACKGROUND

[0002] The biological oil extractor is used for processing various types of biological raw materials, such as plant seeds, fruits, nuts or animal fats, to extract oil from them, and to complete the extraction process as efficiently as possible while maintaining the quality and purity of the oil. Common methods include solvent extraction, cold pressing, steam distillation, enzymatic extraction and supercritical fluid extraction. When supercritical fluid is used to extract biological oil, it is generally introduced into the extractor through a pipeline. However, because the biological raw materials have a stacking property, it takes a lot of time for the supercritical fluid introduced into the extractor to come into contact with the biological raw materials in each area, thereby affecting the efficiency and uniformity of the actual extraction. SUMMARY

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a biological oil extractor to solve the problem of insufficient contact between supercritical fluid and biological raw materials during part of the supercritical fluid extraction process of biological oil, which results in slightly lower extraction efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a biological oil extractor, comprising a support rack and an extraction tank body installed on the support rack for biological raw material and supercritical fluid feeding, a flow guide assembly is arranged on the extraction tank body to guide the supercritical fluid to enter and spread out in multiple height levels from top to bottom, and a driving assembly is installed on the extraction tank body to drive the flow guide assembly to rotate at low speed;

[0005] The flow guide assembly comprises a straight-through pipe rotatably installed on the top of the extraction tank body, a conduit for conveying supercritical fluid is inserted into the top of the straight-through pipe, an axle pipe is connected to the bottom of the straight-through pipe and located inside the extraction tank body, a stirring structure is arranged on the outer surface of the axle pipe to guide the diffusion and shunting of supercritical fluid inside the axle pipe into the extraction tank body in cooperation with the driving assembly, and a through groove is formed on the outer surface of the axle pipe to communicate with the stirring structure.

[0006] Preferably, the stirring structure comprises a sleeve ring arranged on the outer surface of the axle pipe, and at least one slot is formed on the outer surface of the sleeve ring to communicate with the through groove.

[0007] Preferably, a frame bar rod is arranged on the outer surface of the sleeve ring to communicate with the slot, and a plurality of uniformly arranged air hole grooves are formed on the bottom of the frame bar rod.

[0008] The frame bar rod is inclined from one end to the other end of the sleeve ring.

[0009] Preferably, the outer surface of the conduit is fixedly sleeved with an extended sealing ring, and the outer surface of the extended sealing ring is attached to the inner wall of the straight-through pipe.

[0010] Preferably, the extraction tank body is connected with a conveying pipe, a vacuum pump connected with the conveying pipe is installed on the top of the support rack, and an air pressure sensor is installed on the inner wall of the extraction tank body.

[0011] Preferably, the driving assembly comprises a motor installed on the extraction tank body, and a transmission structure is connected between the output shaft of the motor and the straight-through pipe.

[0012] Preferably, a stainless steel filter located below the shaft pipe is installed on the inner wall of the extraction tank body, a lead-out pipe is connected to the bottom of the extraction tank body, a control valve is installed on the lead-out pipe, and a feeding channel is installed on the top of the extraction tank body.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、 the utility model discloses a supercritical fluid supply equipment is connected to the outer conduit, and the supercritical fluid is transported along the straight-through pipe and the shaft pipe to the several up and down arranged stirring structures, then diffuses relatively uniformly from each area of the bottom surface of the stirring structure, and the driving assembly is controlled to rotate at low speed, which stirs the biological raw materials in the extraction tank body and further expands the range of the supercritical fluid dispersion, thereby effectively improving the uniform distribution of the supercritical fluid in the extraction tank body, avoiding the generation of dead zones or uneven dissolution and extraction effect in the extraction tank body, and improving the extraction efficiency and consistency.

[0015] 2、 the utility model discloses that the supercritical fluid is guided downward by the several frame strip type rods, which can reduce the possibility of solid particles or impurities depositing in the frame strip type rods, thereby reducing the risk of blockage and maintaining the continuity and consistency of operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the partial section structure schematic diagram of the extraction tank body of the utility model;

[0018] Figure 3 It is the split structure schematic diagram of the utility model's flow guide assembly;

[0019] Figure 4 It is the split structure schematic diagram of the utility model's stirring structure.

[0020] In the figure: 1, support rack; 2, extraction tank body; 201, stainless steel filter; 202, lead-out pipe; 2021, control valve; 203, feeding channel; 3, flow guide assembly; 301, straight-through pipe; 302, guide pipe; 3021, lengthened sealing ring; 303, shaft pipe; 304, stirring structure; 3041, collar; 3042, notched; 3043, frame bar body; 3044, air hole groove; 305, through groove; 4, driving assembly; 401, motor; 402, transmission structure; 5, conveying pipe; 501, vacuum pump; 502, air pressure sensor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] To solve the problem that the contact between the supercritical fluid and the biological raw material is insufficient in the existing supercritical fluid extraction process of biological oil, resulting in slightly low extraction efficiency, please refer to Figures 1-4 The biological oil extractor provided by the utility model adopts a support rack 1 to support an extraction tank body 2. The extraction tank body 2 provides a suitable space for the convergence of the biological raw material to be extracted and the supercritical fluid. A flow guide assembly 3 arranged on the extraction tank body 2 is used to guide the externally supplied supercritical fluid to enter and be scattered at multiple height levels from top to bottom, thereby improving the uniformity of the distribution of the supercritical fluid in the extraction tank body 2. A driving assembly 4 installed on the extraction tank body 2 is used to drive the flow guide assembly 3 to rotate at a low speed, so as to agitate the biological raw material in the extraction tank body 2 while making the supercritical fluid diffuse and flow, so that it can more uniformly contact the biological material to be extracted, thereby accelerating the extraction process.

[0023] As Figure 1 , Figure 3 and Figure 4As shown, the flow guide assembly 3 comprises a straight pipe 301 rotatably installed on the top of the extraction tank body 2, a guide pipe 302 inserted on the top of the straight pipe 301 for conveying supercritical fluid, and a shaft pipe 303 connected to the bottom of the straight pipe 301 and located inside the extraction tank body 2. The outer surface of the shaft pipe 303 is sleeved with a plurality of stirring structures 304 arranged in an up-down manner for guiding the diffusion of supercritical fluid inside the shaft pipe 303 into the extraction tank body 2 in a diffusion type under the cooperation of the driving assembly 4. A through groove 305 is formed on the outer surface of the shaft pipe 303 and communicates with the stirring structures 304. The supercritical fluid is conveyed from the guide pipe 302 to the inside of the shaft pipe 303 along the straight pipe 301, then flows into the inside of the stirring structures 304 along the through groove 305, and is diffused more uniformly into the inside of the extraction tank body 2 through the stirring structures 304. In addition, the straight pipe 301 is driven to rotate at a low speed by the driving assembly 4, and the stirring structures 304 are controlled to rotate at a low speed by the shaft pipe 303, so as to stir the biological raw materials in the extraction tank body 2. In this way, the mass transfer process between the solutes in the supercritical fluid and the biological raw materials is accelerated, and the uniform distribution of the supercritical fluid in the extraction tank body 2 is effectively improved, so as to avoid the generation of dead zones or uneven dissolution and extraction effect in the extraction tank body 2, thereby improving the efficiency and consistency of the extraction.

[0024] In order to effectively reduce the risk of blockage of the supercritical fluid discharge port in the extraction tank body 2, as shown in Figure 2 and Figure 4 As shown, the stirring structure 304 comprises a sleeve ring 3041 sleeved on the outer surface of the shaft pipe 303, a plurality of slot-shaped rod bodies 3043 mounted on the outer surface of the sleeve ring 3041 and communicating with the slot 3042, and a plurality of gas hole grooves 3044 evenly arranged on the bottom of the slot-shaped rod body 3043 and communicating with the slot 3042. The supercritical fluid flows into the slot-shaped rod body 3043 along the through groove 305 and the slot 3042, and then is dispersed and discharged downward from the gas hole groove 3044 to mix with the biological raw materials. In addition, by arranging the gas hole groove 3044 below the slot-shaped rod body 3043, the possibility of deposition of solid particles or impurities in the slot-shaped rod body 3043 can be reduced, thereby reducing the risk of blockage and maintaining the continuity and consistency of the operation. The inclined arrangement of the slot-shaped rod body 3043 can reduce the residue of biological raw materials on the upper surface thereof.

[0025] As shown in Figure 3As shown, the outer surface of the conduit 302 is fixedly sleeved with an extended sealing ring 3021, and the outer surface of the extended sealing ring 3021 is attached to the inner wall of the straight-through pipe 301, the driving assembly 4 comprises a motor 401 installed on the extraction tank body 2, and a transmission structure 402 is connected between the output shaft of the motor 401 and the straight-through pipe 301. By operating the motor 401, the transmission structure 402 controls the low-speed rotation of the straight-through pipe 301, so as to drive the shaft pipe 303 and the stirring structure 304 to rotate, and in the process, the conduit 302 remains stationary, aiming to supply supercritical fluid into the shaft pipe 303, and the extended sealing ring 3021 is used to improve the sealing between the straight-through pipe 301 and the conduit 302 without affecting the rotation of the straight-through pipe 301 driven by the driving assembly 4.

[0026] The extraction tank body 2 is connected with a conveying pipe 5, a vacuum pump 501 connected with the conveying pipe 5 is installed on the top of the support rack 1, and an air pressure sensor 502 is installed on the inner wall of the extraction tank body 2. The vacuum pump 501 is used for vacuumizing the inside of the extraction tank body 2, and the air pressure sensor 502 detects the pressure inside the extraction tank body 2 at all times, so as to effectively ensure that the vacuum inside the extraction tank body 2 is continuously maintained at the critical point.

[0027] As shown in Figure 1 and Figure 2 , a stainless steel filter 201 is installed on the inner wall of the extraction tank body 2 below the shaft pipe 303, a lead-out pipe 202 is connected to the bottom of the extraction tank body 2, a control valve 2021 is installed on the lead-out pipe 202, and a feeding channel 203 is installed on the top of the extraction tank body 2 for feeding biological raw materials. The extracted solution of oil is filtered by the stainless steel filter 201, and the filtered oil extraction solution is discharged through the lead-out pipe 202.

[0028] It should be noted that the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus.

[0029] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A biological oil extractor comprising a support frame (1) and an extraction tank (2) mounted on the support frame (1) for the introduction of biological raw material and supercritical fluid, characterized in that: The extraction tank body (2) is provided with a guide flow component (3) for guiding supercritical fluid to enter and spread in multiple height levels from top to bottom, and a driving component (4) for driving the low-speed rotation of the guide flow component (3) is mounted on the extraction tank body (2); The guide flow component (3) comprises a straight-through pipe (301) rotatably mounted on the top of the extraction tank body (2), a guide pipe (302) for conveying supercritical fluid is inserted into the top of the straight-through pipe (301), an axle body pipe (303) located inside the extraction tank body (2) is connected to the bottom of the straight-through pipe (301), a stirring structure (304) for matching the driving component (4) to guide the diffusion and flow separation of supercritical fluid inside the axle body pipe (303) into the extraction tank body (2) is sleeved on the outer surface of the axle body pipe (303), and a through groove (305) communicating with the stirring structure (304) is formed in the outer surface of the axle body pipe (303).

2. A biological oil extractor according to claim 1, characterized in that: The stirring structure (304) comprises a sleeve ring (3041) sleeved on the outer surface of the axle body pipe (303), and at least a slot (3042) communicating with the through groove (305) is formed in the outer surface of the sleeve ring (3041).

3. A biological oil extractor according to claim 2, characterized in that: The outer surface of the sleeve ring (3041) is provided with a frame strip rod (3043) communicating with the slot (3042), and a plurality of uniformly arranged air hole grooves (3044) are formed in the bottom of the frame strip rod (3043). The frame strip rod (3043) is inclined from one end close to the sleeve ring (3041) to the other end.

4. A biological oil extractor according to claim 3, characterized in that: The outer surface of the guide pipe (302) is fixedly sleeved with an elongated sealing ring (3021), and the outer surface of the elongated sealing ring (3021) is attached to the inner wall of the straight-through pipe (301).

5. A biological oil extractor according to claim 1, characterized in that: The extraction tank body (2) is connected with a conveying pipe (5), a vacuum pump (501) connected with the conveying pipe (5) is mounted on the top of the support rack (1), and an air pressure sensor (502) is mounted on the inner wall of the extraction tank body (2).

6. A biological oil extractor according to claim 1, characterized in that: The driving component (4) comprises a motor (401) mounted on the extraction tank body (2), and a transmission structure (402) is connected between the output shaft of the motor (401) and the straight-through pipe (301).

7. A biological oil extractor according to claim 1, characterized in that: The inner wall of the extraction tank body (2) is provided with a stainless steel filter (201) located below the axle body pipe (303), a discharge pipe (202) is connected to the bottom of the extraction tank body (2), a control valve (2021) is mounted on the discharge pipe (202), and a feeding channel (203) is mounted on the top of the extraction tank body (2).

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