Rapeseed oil preparation equipment with oil residue separation function and processing method

Abstract

The invention discloses rapeseed oil preparation equipment with an oil residue separation function and a processing method, and relates to the technical field of rapeseed oil refinement. The rapeseed oil preparation equipment comprises an equipment shell, a driving mechanism is arranged at the top of the equipment shell, an oil outlet pipeline is connected to the center of the bottom face of the equipment shell, and at least three refining mechanisms are arranged in the equipment shell; the three refining mechanisms are annularly arranged at equal intervals, each refining mechanism comprises a first refining cylinder and a second refining cylinder, a transfer pipeline is connected between the first refining cylinder and the second refining cylinder, a first compression mechanism is arranged in the first refining cylinder, and a second compression mechanism is arranged in the second refining cylinder; the bottom of the second refining cylinder is connected with an external pipeline, and a butt joint pipeline is connected between the external pipeline and the oil outlet pipeline; and through the arranged refining mechanism, the rapeseed squeezed crude oil entering the first refining cylinder and the second refining cylinder is subjected to a degumming process in sequence through the first refining cylinder and the second refining cylinder, so that the degumming effect of the refining mechanism is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of rapeseed oil refining, and in particular to rapeseed oil preparation equipment with oil residue separation function and a processing method. Background Art

[0002] One of the steps in rapeseed oil refining is degumming. The main purpose of rapeseed oil degumming is to remove impurities such as phospholipids, mucilage, resin, protein, sugar, trace metal ions, etc. in crude oil, so as to improve the purity and stability of oil. These impurities will affect the quality and storage stability of oil, causing the oil to deteriorate easily during storage, affecting the safety and taste of consumption;

[0003] Existing rapeseed oil preparation equipment with oil residue separation function, such as a refining equipment for oil mill disclosed in Chinese patent application with publication number CN112625794A and a refining processing equipment and method for oil and fat disclosed in Chinese patent application with publication number CN116218600A, such oil refining equipment usually only has one tank body for degumming when performing degumming and refining operation of rapeseed oil. The crude oil can only be degummed once in the degumming tank body, resulting in poor degumming effect of rapeseed oil. When degumming is to be performed multiple times, multiple degumming tank bodies are required, which will increase the cost of degumming edible rapeseed oil. Summary of the invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a rapeseed oil preparation equipment and processing method with oil residue separation function, so as to solve the problem that in the prior art, when the oil refining equipment is performing the degumming and refining operation of rapeseed oil, usually only a tank body for degumming is provided, resulting in poor degumming effect of rapeseed oil.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] The first aspect of the present invention is to provide a rapeseed oil preparation device with an oil-residue separation function, comprising an equipment shell, a driving mechanism is arranged on the top of the equipment shell, an oil outlet pipeline is connected to the center of the bottom surface of the equipment shell, at least three groups of refining mechanisms are arranged inside the equipment shell, and the three groups of refining mechanisms are arranged equidistantly in a circular ring shape, the refining mechanism comprises a first refining barrel and a second refining barrel, a transfer pipeline is connected between the first refining barrel and the second refining barrel, a first compression mechanism is arranged inside the first refining barrel, a second compression mechanism is arranged inside the second refining barrel, the bottom of the second refining barrel is connected to an external pipeline, a docking pipeline is connected between the external pipeline and the oil outlet pipeline, and an oil-residue separation mechanism is arranged at the bottom of the inner cavity of the first refining barrel and the second refining barrel.

[0007] As a further solution of the present invention: the driving mechanism includes a driving motor, the output shaft of the driving motor is connected to a planetary reducer, the output end of the planetary reducer is meshed with a transmission gear, and the bottom center of the transmission gear is fixedly connected with a threaded rod.

[0008] As a further solution of the present invention: the first refining cylinder includes a refining inner cylinder, a refining outer cylinder is nested on the outer side of the refining inner cylinder, an oil outlet port is provided on the bottom surface of the refining outer cylinder, the oil outlet port is connected to the top of the transfer pipe, an oil cylinder shell is fixedly connected to the center position of the inner cavity of the refining inner cylinder, a built-in groove is provided at the bottom of the inner cavity of the refining inner cylinder, and a filter screen is installed at the bottom of the side of the refining inner cylinder.

[0009] As a further solution of the present invention: the first compression mechanism includes a first lifting rod, the bottom end of the first lifting rod is fixedly connected to a first compression plate matching the inner cavity of the refining inner cylinder, the side of the first lifting rod is fixedly connected to a first conveying pipe, the bottom surface of the first compression plate is provided with a first adsorption port, and the top surface of the first compression plate is fixedly connected to an adsorption pipe near the first adsorption port.

[0010] As a further solution of the present invention: the oil-residue separation mechanism includes an oil-residue separation cylinder, the oil-residue separation cylinder and the built-in groove fit together, an electromagnetic valve is installed on the bottom surface of the inner cavity of the oil-residue separation cylinder, a movable disk is arranged on the inner side of the oil-residue separation cylinder, a docking block is fixedly connected to the top surface of the movable disk, and the docking block matches the first adsorption port.

[0011] As a further solution of the present invention: the volume structure of the second refining cylinder is the same as that of the first refining cylinder.

[0012] As a further solution of the present invention: the second compression mechanism includes a second compression rod, the second compression rod matches the cylinder shell, the bottom end of the second compression rod is fixedly connected to the second compression plate, the bottom surface of the second compression plate is provided with a second adsorption port, and the top surface of the second compression plate is fixedly connected to the second delivery pipe and the adsorption pipe.

[0013] As a further solution of the present invention: the second delivery pipe is connected to the bottom end of the transfer pipeline through a hose.

[0014] As a further solution of the present invention: a ball nut matching with the threaded rod is installed on the top of the first lifting rod.

[0015] The second aspect of the present invention is to provide a rapeseed oil processing method with an oil-residue separation function. The rapeseed oil processing method is implemented based on the above-mentioned rapeseed oil preparation equipment with an oil-residue separation function, and comprises the following steps:

[0016] S1: heating the rapeseed crude oil and salt water to 60 degrees Celsius to 80 degrees Celsius, and then conveying the heated rapeseed crude oil and salt water to the interior of the first refining cylinder through the first compression mechanism according to a set ratio, so that the rapeseed crude oil and salt water are fully mixed to form an oil-salt water mixture;

[0017] S2: driving the first compression mechanism through the driving mechanism to make the first compression mechanism squeeze the oil-salt water mixture in the first refining cylinder, so that the oil-salt water mixture enters the second refining cylinder after being filtered;

[0018] S3: separating the oil residue in the first refining cylinder by the residue separation mechanism in the first oil refining cylinder, and adding salt water into the second refining cylinder by the second compression mechanism to form an oil-salt water mixture;

[0019] S4: Use the second compression mechanism to squeeze the oil-salt water mixture in the second refining cylinder, so that the oil-salt water mixture enters the external pipeline after filtering, and is finally transported to the oil outlet pipeline through the docking pipeline to collect the filtered rapeseed refined oil.

[0020] Beneficial effects of the present invention:

[0021] 1. In the present invention, through the refining mechanism, the rapeseed crude oil entering the first refining cylinder and the second refining cylinder will undergo the degumming process of the first refining cylinder and the second refining cylinder in sequence, which greatly improves the degumming effect of the refining mechanism. In addition, the first compression mechanism and the second compression mechanism respectively arranged in the first refining cylinder and the second refining cylinder can squeeze the rapeseed crude oil entering the first refining cylinder and the second refining cylinder, increase the filtration efficiency of the rapeseed crude oil in the first refining cylinder and the second refining cylinder, and greatly shorten the degumming time of the rapeseed crude oil. The oil residue separation mechanism arranged at the bottom of the inner cavity of the first refining cylinder and the second refining cylinder can automatically separate the residual oil residue of the first refining cylinder and the second refining cylinder, ensuring that the first refining cylinder and the second refining cylinder can be recycled without manual cleaning.

[0022] 2. In the present invention, by setting the oil-residue separation mechanism, when the first lifting rod moves downward inside the refining inner cylinder, the first compression plate at the bottom of the first lifting rod will squeeze the mixture of rapeseed squeezed crude oil and brine inside the refining inner cylinder, so that the rapeseed squeezed crude oil will quickly pass through the filter screen under high pressure and enter the inside of the refining outer cylinder, while the condensed precipitate will stay inside the refining inner cylinder due to the obstruction of the filter screen. When the first compression plate moves to the top surface of the oil-residue separation cylinder, the first compression plate will scrape all the condensed precipitate inside the refining inner cylinder into the oil-residue separation cylinder by scraping. The cavity formed by the first compression plate and the oil-residue separation cylinder and the filter screen will be The net will be completely isolated, and the first compression plate and the oil-residue separation cylinder form a closed cavity. It should be noted that the end of the adsorption pipe away from the first compression plate is connected to the adsorption device, so that the adsorption pipe produces a strong adsorption force, and then the electromagnetic valve and the adsorption device are opened at the same time. The suction force generated by the adsorption pipe will suck away the condensed sediment and residual oil in the oil-residue separation cylinder, that is, the oil residue through the adsorption pipe. When the adsorption pipe absorbs the oil residue, the movable plate will move upward in the oil-residue separation cylinder under the action of negative pressure. When the top surface of the movable plate is in complete contact with the bottom surface of the first compression plate, it means that the oil residue in the oil-residue separation cylinder is completely adsorbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a structural schematic diagram of a rapeseed oil preparation device with an oil residue separation function according to the present invention;

[0025] Figure 2 This is a front view of the rapeseed oil preparation equipment with oil residue separation function of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the rapeseed oil preparation equipment with oil residue separation function of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the refining mechanism in the present invention;

[0028] Figure 5 It is a schematic diagram of the overall structure of the first refining cylinder in the present invention;

[0029] Figure 6 is an overall cross-sectional view of the first refining cylinder in the present invention;

[0030] Figure 7 It is a structural schematic diagram of the first refining cylinder in the present invention;

[0031] Figure 8 is a cross-sectional view of the first refining cylinder of the present invention;

[0032] Fig. 9is a schematic diagram of the structure of the first compression mechanism in the present invention when viewed from above;

[0033] Fig.10 is a schematic structural diagram of the first compression mechanism in the present invention;

[0034] Fig.11 is a bottom view of the first compression mechanism of the present invention;

[0035] Fig.12 It is a structural schematic diagram of the oil-residue separation mechanism of the present invention;

[0036] Fig.13 It is a structural schematic diagram of the second refining cylinder and the second compression mechanism in the present invention;

[0037] Fig.14 It is a structural schematic diagram of the second compression mechanism in the present invention.

[0038] Figure numerals: 1, equipment housing; 2, driving mechanism; 21, driving motor; 22, planetary reducer; 23, transmission gear; 24, threaded rod; 3, refining mechanism; 31, first refining cylinder; 311, refining inner cylinder; 312, refining outer cylinder; 313, oil outlet port; 314, oil cylinder shell; 315, built-in groove; 316, filter screen; 32, second refining cylinder; 33, first compression mechanism; 331, first lifting rod; 332, first compression plate; 333, first conveying pipe ; 334, first adsorption port; 335, adsorption pipeline; 34, transfer pipeline; 35, external pipeline; 36, docking pipeline; 37, oil residue separation mechanism; 371, oil residue separation cylinder; 372, electromagnetic valve; 373, limit slide groove; 374, movable disk; 375, docking block; 376, fine channel; 38, second compression mechanism; 381, second compression mechanism; 382, ​​second compression disk; 383, second conveying pipe; 384, second adsorption port; 4, oil outlet pipeline. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figure 1-Figure 14As shown, the present invention discloses a rapeseed oil preparation device with oil residue separation function, comprising a device housing 1, a driving mechanism 2 is arranged on the top of the device housing 1, an oil outlet pipeline 4 is connected to the center of the bottom surface of the device housing 1, at least three groups of refining mechanisms 3 are arranged inside the device housing 1, and the three groups of refining mechanisms 3 are arranged equidistantly in a circular ring shape, the refining mechanism 3 comprises a first refining cylinder 31 and a second refining cylinder 32, a transfer pipeline 34 is connected between the first refining cylinder 31 and the second refining cylinder 32, a first compression mechanism 33 is arranged inside the first refining cylinder 31, and a second compression mechanism 34 is arranged inside the second refining cylinder 32. The interior of the refining cylinder 32 is provided with a second compression mechanism 38, the bottom of the second refining cylinder 32 is connected to an external pipeline 35, a docking pipeline 36 is connected between the external pipeline 35 and the oil outlet pipeline 4, and the bottom of the inner cavity of the first refining cylinder 31 and the second refining cylinder 32 are both provided with an oil residue separation mechanism 37. It should be noted that a protective end cover (not shown in the drawings of the specification) can be provided on the top of the equipment housing 1, and a pipeline for connecting rapeseed squeezed crude oil is also provided on the top surface of the protective end cover to ensure that the rapeseed squeezed crude oil can be transported to the equipment housing 1 through the pipeline. In the internal refining mechanism 3, the rapeseed squeezed crude oil is refined, and the refining mechanism 3 includes a first refining cylinder 31 and a second refining cylinder 32, that is, the rapeseed squeezed crude oil entering the refining mechanism 3 will enter the first refining cylinder 31 and the second refining cylinder 32 in sequence, and the rapeseed squeezed crude oil entering the first refining cylinder 31 and the second refining cylinder 32 will undergo a degumming process in the first refining cylinder 31 and the second refining cylinder 32 in sequence, which greatly improves the degumming effect of the refining mechanism 3. In addition, the first compression mechanism 31 and the second refining cylinder 32 are respectively provided with The first refining cylinder 31 and the second refining cylinder 32 are provided with a first compression mechanism 33 and a second compression mechanism 38, which can squeeze the rapeseed crude oil into the first refining cylinder 31 and the second refining cylinder 32, thereby increasing the filtration efficiency of the rapeseed crude oil in the first refining cylinder 31 and the second refining cylinder 32, and greatly shortening the degumming time of the rapeseed crude oil. The oil residue separation mechanism 37 arranged at the bottom of the inner cavity of the first refining cylinder 31 and the second refining cylinder 32 can automatically separate the residual oil residue in the first refining cylinder 31 and the second refining cylinder 32, thereby ensuring that the first refining cylinder 31 and the second refining cylinder 32 can be recycled without manual cleaning.

[0042] Example 2

[0043] like Figure 2 and Figure 3As shown, the driving mechanism 2 includes a driving motor 21, the output shaft of the driving motor 21 is connected to the planetary reducer 22, the output end of the planetary reducer 22 is meshed with a transmission gear 23, and the bottom center position of the transmission gear 23 is fixedly connected with a threaded rod 24. It should be noted that the planetary reducer 22 can be fixedly installed on the inner wall of the equipment housing 1 through a bracket to ensure the stability of the overall structure of the driving mechanism 2. When in use, the driving motor 21 is turned on, and the output shaft of the driving motor 21 can transmit power to the planetary reducer 22 through a coupling, and the planetary reducer 22 then transmits power to the transmission gear 23. The transmission gears 23 drive the threaded rod 24 to rotate, so that the threaded rod 24 has a power source for controlling the first compression mechanism 33.

[0044] Example 3

[0045] like Figure 3-Figure 14As shown, the first refining cylinder 31 includes a refining inner cylinder 311, a refining outer cylinder 312 is nested on the outer side of the refining inner cylinder 311, an oil outlet port 313 is provided on the bottom surface of the refining outer cylinder 312, and the oil outlet port 313 is connected to the top of the transfer pipe 34. The center of the inner cavity of the refining inner cylinder 311 is fixedly connected with an oil cylinder shell 314, the bottom of the inner cavity of the refining inner cylinder 311 is provided with a built-in groove 315, and a filter screen 316 is installed on the bottom of the side of the refining inner cylinder 311. The volume structure of the second refining cylinder 32 is the same as that of the first refining cylinder 31. It should be noted that the first pressure The compression mechanism 33 first delivers the rapeseed pressed crude oil and the brine to the inner cavity of the refining inner cylinder 311 according to the set ratio. The mass percentage of the brine to the rapeseed pressed crude oil is usually 0.5% to 1%, which is specifically adjusted by technicians in the field according to the specific rapeseed pressed crude oil. In the process of the rapeseed pressed crude oil and the brine entering the inner cavity of the refining inner cylinder 311, the rapeseed pressed crude oil and the brine are fully mixed, so that the brine can react with the impurities such as phospholipids, mucus, resin, protein, sugar, trace metal ions in the rapeseed pressed crude oil to form condensed precipitation, thereby improving the quality of the rapeseed. The purity and stability of the squeezed crude oil are improved, and then the condensed precipitate is filtered into the first refining cylinder 31 through the filter screen 316, so that the condensed precipitate is separated from the rapeseed squeezed crude oil. Finally, the filtered precipitate is automatically separated out through the oil residue separation mechanism 37. Since the volume structure of the second refining cylinder 32 is the same as that of the first refining cylinder 31, the rapeseed squeezed crude oil can enter the second refining cylinder 32 for secondary degumming after the degumming treatment of the first refining cylinder 31, so that the degumming effect of the rapeseed squeezed crude oil is stronger. The specific process is that the rapeseed squeezed crude oil entering the refining inner cylinder 311 After the rapeseed crude oil and the brine react, the rapeseed crude oil will enter the refining outer cylinder 312 through the filter 316, and the brine can react with the impurities such as phospholipids, mucus, resins, proteins, sugars, trace metal ions in the rapeseed crude oil to generate condensed precipitates, which will remain in the refining outer cylinder 312, thereby achieving the separation of the rapeseed crude oil and the condensed precipitates. Then, the rapeseed crude oil in the refining outer cylinder 312 can enter the transfer pipeline 34 through the oil outlet port 313, and then be transported by the transfer pipeline 34 to the interior of the second refining cylinder 32 for secondary degumming treatment.

[0046] The first compression mechanism 33 includes a first lifting rod 331, the bottom end of the first lifting rod 331 is fixedly connected to a first compression plate 332 that matches the inner cavity of the refining inner cylinder 311, the side of the first lifting rod 331 is fixedly connected to a first delivery pipe 333, the bottom surface of the first compression plate 332 is provided with a first adsorption port 334, and the top surface of the first compression plate 332 is fixedly connected to an adsorption pipe 335 near the first adsorption port 334. The second compression mechanism 38 includes a second compression rod 381, the second compression rod 381 matches the cylinder shell 314, the bottom end of the second compression rod 381 is fixedly connected to a second compression plate 382, ​​the bottom surface of the second compression plate 382 is provided with a second adsorption port 384, and the top surface of the second compression plate 382 is fixedly connected to the second delivery pipe 383 and the adsorption pipe 335. It should be noted that the number of the first delivery pipes 333 is set to at least two, so that the first delivery pipe 333 can be used as the suction pipe 335 of the suction pipe 335. Fig. 9 and Fig.10 For example, four first delivery pipes 333 are arranged on the side of the first lifting rod 331, three of which can be used to deliver rapeseed crude oil, and the other one is used to deliver brine, to ensure that the rapeseed crude oil and brine enter the interior of the refining inner cylinder 311 according to the set mass percentage. Specifically, three of the first delivery pipes 333 are used to connect to the external pipeline for delivering rapeseed crude oil, and the other one is used to deliver brine, to ensure that the output of the rapeseed crude oil and the brine do not interfere with each other. A flow meter can be set in both the pipeline for delivering rapeseed crude oil and the pipeline for delivering brine, and the flow meter is used to control the mass percentage of rapeseed crude oil and brine entering the refining inner cylinder 311.

[0047] The oil residue separation mechanism 37 includes an oil residue separation cylinder 371, which is matched with the built-in groove 315. An electromagnetic valve 372 is installed on the bottom surface of the inner cavity of the oil residue separation cylinder 371. A movable disk 374 is arranged on the inner side of the oil residue separation cylinder 371. A docking block 375 is fixedly connected to the top surface of the movable disk 374. The docking block 375 matches the first adsorption port 334. It should be noted that the oil residue separation mechanism 37 is used to automatically remove the oil residue in the first refining cylinder 31 and the second refining cylinder 32 through the filter screen 31. The specific process is that when the first lifting rod 331 moves downward inside the refining inner cylinder 311, the first compression plate 332 at the bottom of the first lifting rod 331 will squeeze the rapeseed squeezed crude oil and the salt water mixture inside the refining inner cylinder 311, so that the rapeseed squeezed crude oil will quickly pass through the filter screen 316 under high pressure and enter the interior of the refining outer cylinder 312, while the condensed precipitate will stay inside the refining inner cylinder 311 due to the obstruction of the filter screen 316. When the first compression plate 332 moves downward, the rapeseed squeezed crude oil will quickly pass through the filter screen 316 and enter the interior of the refining outer cylinder 312. When the top surface of the oil-residue separation cylinder 371 is reached, the first compression plate 332 will scrape all the condensed sediment inside the refining inner cylinder 311 into the oil-residue separation cylinder 371 by scraping. The cavity formed by the first compression plate 332 and the oil-residue separation cylinder 371 will be completely isolated from the filter screen 316. The first compression plate 332 and the oil-residue separation cylinder 371 form a closed cavity. It should be noted that the end of the adsorption pipe 335 away from the first compression plate 332 is connected to an adsorption device, such as a vacuum pump, so that the adsorption pipe 335 is A strong adsorption force is generated, and then the electromagnetic valve 372 and the adsorption equipment are opened at the same time. The suction force generated by the adsorption pipe 335 will absorb the condensed sediment and residual oil, that is, the oil residue in the oil residue separation cylinder 371 through the adsorption pipe 335. When the adsorption pipe 335 absorbs the oil residue, the movable plate 374 will move upward in the oil residue separation cylinder 371 under the action of negative pressure. When the top surface of the movable plate 374 is completely in contact with the bottom surface of the first compression plate 332, it means that the oil residue in the oil residue separation cylinder 371 is completely adsorbed.

[0048] A limiting groove 373 is provided on the inner side of the oil-residue separation cylinder 371, and a limiting sliding block that fits with the limiting groove 373 is fixedly connected to the inner side of the movable disk 374 near the limiting groove 373 to ensure the stability of the movable disk 374 during movement. The docking block 375 connected to the top surface of the movable disk 374 fits with the inner cavity of the adsorption pipe 335. In this way, when the top surface of the movable disk 374 contacts the bottom surface of the first compression disk 332, the docking block 375 can be completely embedded in the adsorption pipe 335. It should also be noted that a number of vertically arranged fine channels 376 are provided on the side of the docking block 375. The fine channels 376 can increase the surface tension of the oil residue flowing on the side of the docking block 375, thereby ensuring that the adsorption pipe 335 can completely absorb the oil residue in the oil-residue separation cylinder 371.

[0049] The working principle of the oil-residue separation mechanism 37 in the second refining barrel 32 is the same as that in the first refining barrel 31. The difference is that the first compression mechanism 33 is replaced by the second compression mechanism 38, which will not be elaborated here. In addition, since the oil cylinder shell 314 is not arranged inside the second refining barrel 32, a cylindrical block with the same diameter as the oil cylinder shell 314 but the same height as the thickness of the oil-residue separation barrel 371 can be arranged at the center position inside the second refining barrel 32 to ensure that the oil-residue separation mechanism 37 in the second refining barrel 32 has exactly the same structure as the oil-residue separation mechanism 37 in the first refining barrel 31.

[0050] The second delivery pipe 383 is connected to the bottom end of the transfer pipe 34 through a hose. It should be noted that the transfer pipe 34 can deliver the rapeseed crude oil that has been degummed once to the second delivery pipe 383 through the hose. The function of the second delivery pipe 383 is the same as that of the first delivery pipe 333, both of which deliver the rapeseed crude oil and brine to the interior of the refining inner cylinder 311 according to the set mass percentage.

[0051] The top of the first lifting rod 331 is equipped with a ball nut that matches the threaded rod 24. It should be noted that when the threaded rod 24 rotates, the threaded rod 24 cooperates with the ball nut installed on the top of the first lifting rod 331 to realize the lifting operation of the first lifting rod 331. The top of the first lifting rod 331 needs to have a storage groove that matches the threaded rod 24 to ensure that the threaded rod 24 can be retracted through the storage groove. The second compression rod 381 is driven by the cylinder shell 314. Specifically, the cylinder shell 314 and the second compression rod 381 together form a hydraulic cylinder mechanism. The cylinder shell 314 drives the second compression rod 381 through hydraulic pressure. It should be noted that when the first lifting rod 331 moves downward inside the first refining barrel 31, the second compression rod 381 needs to move upward inside the second refining barrel 32. When the second compression rod 381 moves upward inside the second refining barrel 32, the bottom of the second compression rod 381 The second compression plate 382 will form a negative pressure in the inner cavity of the refining inner cylinder 311 corresponding to the second refining cylinder 32, so that the refining inner cylinder 311 corresponding to the second refining cylinder 32 can automatically absorb the rapeseed crude oil and brine through the second delivery pipe 383, ensuring that the rapeseed crude oil in the refining outer cylinder 312 corresponding to the first refining cylinder 31 can quickly enter the interior of the refining inner cylinder 311 corresponding to the second refining cylinder 32. In order to ensure that when the first lifting rod 331 or the second compression rod 381 squeezes the rapeseed crude oil downward, the rapeseed crude oil will not enter the first delivery pipe 333, the first adsorption port 334 and the adsorption pipeline 335 or the second delivery pipe 383, the second adsorption port 384 and the adsorption pipeline 335, it is necessary to set a one-way valve inside the first delivery pipe 333, the first adsorption port 334, the second delivery pipe 383, the second adsorption port 384 and the adsorption pipeline 335 to prevent the rapeseed crude oil or brine from flowing back.

[0052] Example 4

[0053] like Figure 1-Figure 14 As shown, the present invention discloses a rapeseed oil processing method with an oil residue separation function, which is implemented based on a rapeseed oil preparation device with an oil residue separation function, and comprises the following steps:

[0054] S1: heating the rapeseed crude oil and salt water to 60 degrees Celsius to 80 degrees Celsius, and then conveying the heated rapeseed crude oil and salt water to the inside of the first refining cylinder 31 through the first compression mechanism 33 according to the set ratio, so that the rapeseed crude oil and salt water are fully mixed to form an oil-salt water mixture;

[0055] S2: The first compression mechanism 33 is driven by the driving mechanism 2 to squeeze the oil-salt water mixture inside the first refining cylinder 31, so that the oil-salt water mixture enters the second refining cylinder 32 after being filtered. When the threaded rod 24 rotates, the threaded rod 24 cooperates with the ball nut installed on the top of the first lifting rod 331 to realize the lifting operation of the first lifting rod 331. The top of the first lifting rod 331 needs to be provided with a storage groove matching the threaded rod 24 to ensure that the threaded rod 24 can be collected through the storage groove. The second compression rod 381 is driven by the cylinder shell 314. The first compression mechanism 33 first delivers the rapeseed squeezed crude oil and brine (the brine can also be salt brine) to the refining inner cylinder according to the set ratio. In the inner cavity of 311, the mass percentage of salt water to rapeseed crude oil is usually 0.5% to 1%, which is specifically adjusted by technicians in this field according to the specific rapeseed crude oil. In the process of the rapeseed crude oil and the salt water entering the inner cavity of the refining inner cylinder 311, the rapeseed crude oil and the salt water are fully mixed, so that the salt water can react with the impurities such as phospholipids, mucus, resins, proteins, sugars, trace metal ions in the rapeseed crude oil to generate condensed precipitates, thereby improving the purity and stability of the rapeseed crude oil. Then, the condensed precipitates are filtered in the first refining cylinder 31 through the filter screen 316, thereby achieving the separation of the condensed precipitates from the rapeseed crude oil. Finally, the filtered precipitates are automatically separated out through the oil residue separation mechanism 37.

[0056] S3: The oil residue inside the first refining cylinder 31 is separated by the oil residue separation mechanism 37 in the first oil refining cylinder 31, and salt water is added to the inside of the second refining cylinder 32 by the second compression mechanism 38 to form an oil-salt water mixture. When the first lifting rod 331 moves downward inside the refining inner cylinder 311, the first compression plate 332 at the bottom of the first lifting rod 331 will squeeze the mixture of rapeseed pressed crude oil and salt water inside the refining inner cylinder 311, so that the rapeseed pressed crude oil will quickly pass through the filter screen 316 under high pressure and enter the inside of the refining outer cylinder 312, while the condensed precipitate will stay inside the refining inner cylinder 311 due to the obstruction of the filter screen 316. When the first compression plate 332 moves to the top surface of the oil residue separation cylinder 371, the first compression plate 332 will scrape all the condensed precipitate inside the refining inner cylinder 311 into the oil residue separation cylinder 371 by scraping. The cavity formed by the first compression disc 332 and the oil-residue separation cylinder 371 is completely isolated from the filter screen 316. The first compression disc 332 and the oil-residue separation cylinder 371 form a closed cavity. It should be noted that the end of the adsorption pipe 335 away from the first compression disc 332 is connected to an adsorption device, such as a vacuum pump, so that the adsorption pipe 335 generates a strong adsorption force, and then the electromagnetic valve 372 and the adsorption device are opened at the same time. The suction force generated by the adsorption pipe 335 will absorb the condensed sediment and residual oil in the oil-residue separation cylinder 371, that is, the oil residue through the adsorption pipe 335. When the adsorption pipe 335 absorbs the oil residue, the movable disc 374 will move upward in the oil-residue separation cylinder 371 under the action of negative pressure. When the top surface of the movable disc 374 is completely in contact with the bottom surface of the first compression disc 332, it means that the oil residue in the oil-residue separation cylinder 371 is completely adsorbed.

[0057] S4: Use the second compression mechanism 38 to squeeze the oil-salt water mixture inside the second refining cylinder 32, so that the oil-salt water mixture enters the external pipe 35 after filtering, and is finally transported to the oil outlet pipe 4 through the docking pipe 36 to collect the filtered rapeseed refined oil.

[0058] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A rapeseed oil preparation device with oil residue separation function, characterized in that: include: A device housing (1) is provided with a driving mechanism (2) on the top thereof, and an oil outlet pipeline (4) is connected to the center of the bottom surface of the device housing (1); The refining mechanisms (3) are at least three in number, and the three refining mechanisms (3) are arranged in a circular shape and at equal distances inside the device housing (1); The refining mechanism (3) comprises a first refining cylinder (31) and a second refining cylinder (32); a transfer pipe (34) is connected between the first refining cylinder (31) and the second refining cylinder (32); a first compression mechanism (33) is arranged inside the first refining cylinder (31); a second compression mechanism (38) is arranged inside the second refining cylinder (32); the bottom of the second refining cylinder (32) is connected to an external pipe (35); a docking pipe (36) is connected between the external pipe (35) and the oil outlet pipe (4); and oil residue separation mechanisms (37) are arranged at the bottom of the inner cavities of the first refining cylinder (31) and the second refining cylinder (32).

2. The rapeseed oil preparation equipment with oil residue separation function according to claim 1, characterized in that: The driving mechanism (2) comprises a driving motor (21), the output shaft of the driving motor (21) is connected to a planetary reducer (22), the output end of the planetary reducer (22) is meshed with a transmission gear (23), and the center position of the bottom surface of the transmission gear (23) is fixedly connected to a threaded rod (24).

3. The rapeseed oil preparation equipment with oil residue separation function according to claim 1, characterized in that: The first refining cylinder (31) comprises a refining inner cylinder (311), a refining outer cylinder (312) is nested on the outer side of the refining inner cylinder (311), an oil outlet port (313) is provided on the bottom surface of the refining outer cylinder (312), the oil outlet port (313) is communicated with the top end of the transfer pipe (34), an oil cylinder shell (314) is fixedly connected to the center position of the inner cavity of the refining inner cylinder (311), a built-in groove (315) is provided at the bottom of the inner cavity of the refining inner cylinder (311), and a filter screen (316) is installed at the bottom of the side of the refining inner cylinder (311).

4. The rapeseed oil preparation equipment with oil residue separation function according to claim 3, characterized in that: The first compression mechanism (33) comprises a first lifting rod (331), the bottom end of the first lifting rod (331) is fixedly connected to a first compression plate (332) matching the inner cavity of the refining inner cylinder (311), the side of the first lifting rod (331) is fixedly connected to a first conveying pipe (333), the bottom surface of the first compression plate (332) is provided with a first adsorption port (334), and the top surface of the first compression plate (332) is fixedly connected to an adsorption pipe (335) near the first adsorption port (334).

5. The rapeseed oil preparation equipment with oil residue separation function according to claim 4, characterized in that: The oil-residue separation mechanism (37) comprises an oil-residue separation cylinder (371), the oil-residue separation cylinder (371) and the built-in groove (315) are mutually matched, an electromagnetic valve (372) is installed on the bottom surface of the inner cavity of the oil-residue separation cylinder (371), a movable disk (374) is arranged on the inner side of the oil-residue separation cylinder (371), a docking block (375) is fixedly connected to the top surface of the movable disk (374), and the docking block (375) matches the first adsorption port (334).

6. The rapeseed oil preparation equipment with oil residue separation function according to claim 1, characterized in that: The volume structure of the second refining cylinder (32) is the same as that of the first refining cylinder (31).

7. The rapeseed oil preparation equipment with oil residue separation function according to claim 5, characterized in that: The second compression mechanism (38) comprises a second compression rod (381), the second compression rod (381) matches the oil cylinder shell (314), the bottom end of the second compression rod (381) is fixedly connected to a second compression plate (382), the bottom surface of the second compression plate (382) is provided with a second adsorption port (384), and the top surface of the second compression plate (382) is fixedly connected to a second delivery pipe (383) and an adsorption pipe (335).

8. The rapeseed oil preparation equipment with oil residue separation function according to claim 7, characterized in that: The second delivery pipe (383) is connected to the bottom end of the transfer pipe (34) through a hose.

9. The rapeseed oil preparation equipment with oil residue separation function according to claim 4, characterized in that: A ball nut that fits with the threaded rod (24) is installed on the top of the first lifting rod (331).

10. A method for processing rapeseed oil with an oil-residue separation function, the method for processing rapeseed oil being realized based on a rapeseed oil preparation device with an oil-residue separation function as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: heating the rapeseed crude oil and salt water to 60 degrees Celsius to 80 degrees Celsius, and then conveying the heated rapeseed crude oil and salt water to the interior of the first refining cylinder (31) through a first compression mechanism (33) according to a set ratio, so that the rapeseed crude oil and salt water are fully mixed to form an oil-salt water mixture; S2: driving the first compression mechanism (33) through the driving mechanism (2) so that the first compression mechanism (33) squeezes the oil-salt water mixture in the first refining cylinder (31), so that the oil-salt water mixture enters the second refining cylinder (32) after being filtered; S3: separating the oil residue inside the first refining cylinder (31) through the residue separation mechanism (37) in the first oil refining cylinder (31), and adding salt water inside the second refining cylinder (32) through the second compression mechanism (38) to form an oil-salt water mixture; S4: The oil-salt water mixture in the second refining cylinder (32) is squeezed by the second compression mechanism (38), so that the oil-salt water mixture enters the external pipe (35) after being filtered, and is finally transported to the oil outlet pipe (4) through the docking pipe (36) to collect the filtered rapeseed refined oil.

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