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

Abstract

The application discloses rapeseed oil preparation equipment with oil residue separation function and a processing method, relates to the technical field of rapeseed oil refining, and comprises an equipment shell, the top of which is provided with a driving mechanism, the bottom surface center position of the equipment shell is connected with an oil outlet pipeline, at least three groups of refining mechanisms are arranged in the equipment shell, and the three groups of refining mechanisms are arranged in a circular ring and equidistantly, the 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, a second compression mechanism is arranged in the second refining cylinder, an external connecting pipeline is connected to the bottom of the second refining cylinder, and a butt joint pipeline is connected between the external connecting pipeline and the oil outlet pipeline; through the arranged refining mechanism, the rapeseed pressed crude oil entering the first refining cylinder and the second refining cylinder can be subjected to the degumming process of the first refining cylinder and the second refining cylinder in sequence, and the degumming effect of the refining mechanism is greatly improved.

Description

TECHNICAL FIELD

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

[0002] One step in rapeseed oil refining is degumming. The main purpose of rapeseed oil degumming is to remove phospholipids, mucilage, resin, protein, sugar, trace metal ions and other impurities in crude oil, thereby improving the purity and stability of the oil. These impurities can affect the quality and storage stability of the oil, causing the oil to deteriorate during storage, affecting the safety and taste of the food.

[0003] The existing rapeseed oil preparation equipment with oil residue separation function, such as the oil refinery equipment disclosed in Chinese patent application No. CN112625794A and the oil refining treatment equipment and method disclosed in Chinese patent application No. CN116218600A, usually only sets a degumming tank when performing degumming and refining operation of rapeseed oil. The crude oil can only be degummed once in the degumming tank, resulting in poor degumming effect of the rapeseed oil. When multiple degumming is required, multiple degumming tanks are needed, which increases the cost of degumming of edible rapeseed oil. SUMMARY

[0004] In order to overcome the above technical problems, the purpose of the present application is to provide a rapeseed oil preparation equipment with oil residue separation function and a processing method, to solve the problem that the oil refining equipment usually only sets a degumming tank when performing degumming and refining operation of rapeseed oil, resulting in poor degumming effect of the rapeseed oil.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] The first aspect of the present application provides a rapeseed oil preparation equipment with oil residue separation function, comprising a device shell, a driving mechanism is arranged on the top of the device shell, an oil outlet pipeline is connected to the center of the bottom surface of the device shell, at least three refining mechanisms are arranged in the device shell, and the three refining mechanisms are arranged at equal intervals in a circular ring shape. The 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, a second compression mechanism is arranged in the second refining cylinder, an external pipeline is connected to the bottom of the second refining cylinder, a butt joint 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 cylinder and the second refining cylinder.

[0007] As a further scheme of the present application, the driving mechanism comprises a driving motor, the output shaft of the driving motor is connected with a planetary reducer, the output end of the planetary reducer is engaged with a transmission gear, and the bottom surface center position of the transmission gear is fixedly connected with a threaded rod.

[0008] As a further scheme of the present application, the first refining cylinder comprises a refining inner cylinder, the outer side of the refining inner cylinder is nested with a refining outer cylinder, the bottom surface of the refining outer cylinder is provided with an oil outlet port, the oil outlet port is communicated with the top end of the transfer pipeline, the inner cavity center position of the refining inner cylinder is fixedly connected with an oil cylinder shell, the inner cavity bottom of the refining inner cylinder is provided with an embedded groove, and the side bottom of the refining inner cylinder is provided with a filter screen.

[0009] As a further scheme of the present application, the first compression mechanism comprises a first lifting rod, the bottom end of the first lifting rod is fixedly connected with a first compression disc matched with the inner cavity of the refining inner cylinder, the side surface of the first lifting rod is fixedly connected with a first conveying pipe, the bottom surface of the first compression disc is provided with a first adsorption port, and the top surface of the first compression disc is fixedly connected with an adsorption pipeline near the position of the first adsorption port.

[0010] As a further scheme of the present application, the oil residue separation mechanism comprises an oil residue separation cylinder, the oil residue separation cylinder is matched with the embedded groove, the inner cavity bottom of the oil residue separation cylinder is provided with an electromagnetic valve, the inner side of the oil residue separation cylinder is provided with a moving disc, the top surface of the moving disc is fixedly connected with a butt joint block matched with the first adsorption port.

[0011] As a further scheme of the present application, the second refining cylinder is the same in volume structure as the first refining cylinder.

[0012] As a further scheme of the present application, the second compression mechanism comprises a second compression rod matched with the oil cylinder shell, the bottom end of the second compression rod is fixedly connected with a second compression disc, the bottom surface of the second compression disc is provided with a second adsorption port, and the top surface of the second compression disc is fixedly connected with a second conveying pipe and an adsorption pipeline.

[0013] As a further scheme of the present application, the second conveying pipe is communicated with the bottom end of the transfer pipeline through a hose.

[0014] As a further scheme of the present application, the top of the first lifting rod is provided with a ball nut matched with the threaded rod.

[0015] The second aspect of the present application provides a rapeseed oil processing method with oil residue separation function, which is realized based on the rapeseed oil preparation equipment with oil residue separation function and comprises the following steps.

[0016] S1: The rapeseed pressed crude oil and salt water are heated to 60-80 DEG C, and then the heated rapeseed pressed crude oil and salt water are conveyed into the interior of the first refining cylinder in a set ratio through the first compression mechanism, so that the rapeseed pressed crude oil and salt water are fully mixed to form an oil-salt water mixture;

[0017] S2: The first compression mechanism is driven by the driving mechanism to extrude the oil-salt water mixture in the interior of the first refining cylinder, so that the oil-salt water mixture enters the interior of the second refining cylinder after filtration;

[0018] S3: The oil residue in the interior of the first refining cylinder is separated by the residue separation mechanism in the first refining cylinder, and salt water is added into the interior of the second refining cylinder through the second compression mechanism to form an oil-salt water mixture;

[0019] S4: The oil-salt water mixture in the interior of the second refining cylinder is extruded by the second compression mechanism, so that the oil-salt water mixture enters the external pipeline after filtration, and is finally conveyed to the oil outlet pipeline by the butt joint pipeline to collect the filtered rapeseed pressed refined oil.

[0020] The beneficial effects of the present application are as follows:

[0021] 1、In the present application, the rapeseed pressed 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 turn, which greatly improves the degumming effect of the refining mechanism. In addition, the first compression mechanism and the second compression mechanism arranged in the first refining cylinder and the second refining cylinder can extrude the rapeseed pressed crude oil entering the first refining cylinder and the second refining cylinder, which increases the filtering efficiency of the rapeseed pressed crude oil in the first refining cylinder and the second refining cylinder, greatly shortens the degumming time of the rapeseed pressed crude oil, and 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 in the first refining cylinder and the second refining cylinder, so that the first refining cylinder and the second refining cylinder can be recycled without manual cleaning.

[0022] 2、The oil residue separation mechanism is arranged, when the first lifting rod moves downwards in the interior of the refining inner cylinder, the first compression disc at the bottom end of the first lifting rod extrudes the mixture of the rapeseed pressed crude oil and the brine in the interior of the refining inner cylinder, so that the rapeseed pressed crude oil rapidly passes through the filter screen into the interior of the refining outer cylinder under high pressure, and the condensed precipitate stays in the interior of the refining inner cylinder due to the blockage of the filter screen, when the first compression disc moves to the top surface of the oil residue separation cylinder, the condensed precipitate in the interior of the refining inner cylinder is scraped into the oil residue separation cylinder by the first compression disc through scraping, the cavity formed by the first compression disc and the oil residue separation cylinder is completely isolated from the filter screen, the cavity formed by the first compression disc and the oil residue separation cylinder is airtight, it is to be noted that the end of the adsorption pipeline far from the first compression disc is connected with the adsorption equipment, so that the adsorption pipeline generates strong adsorption force, then the electromagnetic valve and the adsorption equipment are simultaneously opened, the adsorption force generated by the adsorption pipeline can also suck away the condensed precipitate and the residual oil, that is, the oil residue in the oil residue separation cylinder through the adsorption pipeline, when the adsorption pipeline sucks the oil residue, the moving disc moves upwards in the oil residue separation cylinder under the action of negative pressure, when the top surface of the moving disc is completely in contact with the bottom surface of the first compression disc, it is indicated that the oil residue in the oil residue separation cylinder is completely adsorbed and cleaned. BRIEF DESCRIPTION OF DRAWINGS

[0023] The application will be further described below in combination with the drawings.

[0024] Figure 1 is a structural schematic view of the rapeseed oil preparation equipment with the oil residue separation function of the application;

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

[0026] Figure 3 is a structural schematic view of the rapeseed oil preparation equipment with the oil residue separation function of the application;

[0027] Figure 4 is a structural schematic view of the refining mechanism in the application;

[0028] Figure 5 is a structural schematic view of the first refining cylinder in the application;

[0029] Figure 6 is an overall sectional view of the first refining cylinder in the application;

[0030] Figure 7 is a structural schematic view of the first refining cylinder in the application;

[0031] Figure 8 is a sectional view of the first refining cylinder in the application;

[0032] Figure 9is the structural schematic view of the first compression mechanism in the application in the bottom view;

[0033] Figure 10 is the structural schematic view of the first compression mechanism in the application;

[0034] Figure 11 is the bottom view of the first compression mechanism in the application;

[0035] Figure 12 is the structural schematic view of the oil residue separation mechanism in the application;

[0036] Figure 13 is the structural schematic view of the second refining cylinder and the second compression mechanism in the application;

[0037] Figure 14 is the structural schematic view of the second compression mechanism in the application.

[0038] Fig. 1 is the equipment shell; 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 disc; 333, first conveying pipe; 334, first adsorption port; 335, adsorption pipeline; 34, transfer pipeline; 35, external pipeline; 36, butt joint pipeline; 37, oil residue separation mechanism; 371, oil residue separation cylinder; 372, electromagnetic valve; 373, limiting sliding slot; 374, moving disc; 375, butt joint block; 376, fine channel; 38, second compression mechanism; 381, second compression mechanism; 382, second compression disc; 383, second conveying pipe; 384, second adsorption port; 4, oil outlet pipeline. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0040] Embodiment 1

[0041] As Figures 1-14As shown, the present application discloses a rapeseed oil preparation equipment with oil residue separation function, which comprises an equipment shell 1, a driving mechanism 2 is arranged on the top of the equipment shell 1, an oil outlet pipeline 4 is connected to the center position of the bottom surface of the equipment shell 1, at least three groups of refining mechanisms 3 are arranged in the equipment shell 1, and the three groups of refining mechanisms 3 are arranged in a circular ring shape at equal intervals, 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 in the first refining cylinder 31, a second compression mechanism 38 is arranged in the second refining cylinder 32, an external pipeline 35 is connected to the bottom of the second refining cylinder 32, a butt joint pipeline 36 is connected between the external pipeline 35 and the oil outlet pipeline 4, and an oil residue separation mechanism 37 is arranged at the bottom of the inner cavity of the first refining cylinder 31 and the second refining cylinder 32. It should be noted that a protective end cover (not shown in the attached drawings) can be arranged on the top of the equipment shell 1, and a pipeline for connecting the rapeseed pressed crude oil is arranged on the top surface of the protective end cover, so that the rapeseed pressed crude oil can be conveyed into the refining mechanism 3 in the equipment shell 1 through the pipeline for the refining operation of the rapeseed pressed crude oil, and the refining mechanism 3 comprises the first refining cylinder 31 and the second refining cylinder 32, that is, the rapeseed pressed crude oil entering the refining mechanism 3 will enter the first refining cylinder 31 and the second refining cylinder 32 in turn, and the rapeseed pressed crude oil entering the first refining cylinder 31 and the second refining cylinder 32 will undergo the degumming process of the first refining cylinder 31 and the second refining cylinder 32 in turn, which greatly improves the degumming effect of the refining mechanism 3. In addition, the first compression mechanism 33 and the second compression mechanism 38 arranged in the first refining cylinder 31 and the second refining cylinder 32 can extrude the rapeseed pressed crude oil entering the first refining cylinder 31 and the second refining cylinder 32, which increases the filtering efficiency of the rapeseed pressed crude oil in the first refining cylinder 31 and the second refining cylinder 32, and greatly shortens the degumming time of the rapeseed pressed 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 of the first refining cylinder 31 and the second refining cylinder 32, so that the first refining cylinder 31 and the second refining cylinder 32 can be recycled without manual cleaning.

[0042] Example 2

[0043] As Figure 2 and Figure 3As shown, the driving mechanism 2 comprises a driving motor 21, the output shaft of the driving motor 21 is connected with a planetary reducer 22, the output end of the planetary reducer 22 is engaged with a transmission gear 23, the bottom surface center position of the transmission gear 23 is fixedly connected with a threaded rod 24, and it should be noted that the planetary reducer 22 can be fixedly installed on the inner wall of the equipment shell 1 through a support, so that the stability of the overall structure of the driving mechanism 2 is guaranteed. In use, the driving motor 21 is turned on, the output shaft of the driving motor 21 can transmit power to the planetary reducer 22 through a shaft coupling, the planetary reducer 22 further transmits power to the transmission gear 23, the transmission gear 23 drives 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] As Figures 3-14As shown, the first refining cylinder 31 comprises a refining inner cylinder 311, the outer side of the refining inner cylinder 311 is nested with a refining outer cylinder 312, the bottom surface of the refining outer cylinder 312 is provided with an oil outlet port 313, the oil outlet port 313 is connected with the top end of the transfer pipeline 34, the inner cavity center position of the refining inner cylinder 311 is fixedly connected with an oil cylinder shell 314, the inner cavity bottom of the refining inner cylinder 311 is provided with an embedded groove 315, and the side bottom of the refining inner cylinder 311 is provided with a filter screen 316. The second refining cylinder 32 has the same volume structure as the first refining cylinder 31. It should be noted that the first compression mechanism 33 first delivers the rapeseed pressed crude oil and brine to the inner cavity of the refining inner cylinder 311 according to the set proportion, and the mass percentage of the brine in the rapeseed pressed crude oil is usually 0.5% to 1%, which is adaptively adjusted by the person skilled in the art according to the specific rapeseed pressed crude oil. During 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, mucilages, resins, proteins, sugars and trace metal ions in the rapeseed pressed crude oil to generate coagulation and precipitation, thereby improving the purity and stability of the rapeseed pressed crude oil. Then the coagulation and precipitation is filtered in the first refining cylinder 31 through the filter screen 316, so as to realize the separation of the coagulation and precipitation and the rapeseed pressed crude oil. Finally, the filtered sediment is automatically separated out by the oil residue separation mechanism 37. Since the second refining cylinder 32 has the same volume structure as the first refining cylinder 31, the rapeseed pressed crude oil can be subjected to secondary degumming treatment in the second refining cylinder 32 after the degumming treatment of the first refining cylinder 31, so as to make the degumming effect of the rapeseed pressed crude oil stronger. The specific process is that after the rapeseed pressed crude oil and the brine entering the refining inner cylinder 311 are reacted, the rapeseed pressed crude oil enters the refining outer cylinder 312 through the filter screen 316, and the coagulation and precipitation generated by the reaction of the brine and the impurities such as phospholipids, mucilages, resins, proteins, sugars and trace metal ions in the rapeseed pressed crude oil is retained in the refining outer cylinder 312, so as to realize the separation of the rapeseed pressed crude oil and the coagulation and precipitation. Then the rapeseed pressed crude oil in the refining outer cylinder 312 can enter the transfer pipeline 34 through the oil outlet port 313, and then be delivered to the inside of the second refining cylinder 32 for secondary degumming treatment.

[0046] The first compression mechanism 33 comprises a first lifting rod 331, the bottom end of the first lifting rod 331 is fixedly connected with a first compression disc 332 matched with the inner cavity of the refining inner cylinder 311, the side surface of the first lifting rod 331 is fixedly connected with a first conveying pipe 333, the bottom surface of the first compression disc 332 is provided with a first adsorption port 334, the top surface of the first compression disc 332 is fixedly connected with an adsorption pipeline 335 near the position of the first adsorption port 334, the second compression mechanism 38 comprises a second compression rod 381 matched with the oil cylinder shell 314, the bottom end of the second compression rod 381 is fixedly connected with a second compression disc 382, the bottom surface of the second compression disc 382 is provided with a second adsorption port 384, the top surface of the second compression disc 382 is fixedly connected with a second conveying pipe 383 and the adsorption pipeline 335, it should be noted that the number of the first conveying pipe 333 is at least two, so as to Figure 9 and Figure 10 For example, four first conveying pipes 333 are arranged on the side surface of the first lifting rod 331, three of which can be used to convey rapeseed pressed crude oil, and the other one is used to convey brine, so as to ensure that the rapeseed pressed crude oil and the brine enter the inside of the refining inner cylinder 311 according to the set mass percentage, specifically, three first conveying pipes 333 are used to connect the pipeline conveying the rapeseed pressed crude oil, and the other one is used to convey the brine, so as to ensure that the output of the rapeseed pressed crude oil and the brine does not interfere with each other, a flow meter can be arranged in the pipeline conveying the rapeseed pressed crude oil and the pipeline conveying the brine, so as to control the mass percentage of the rapeseed pressed crude oil and the brine entering the inside of the refining inner cylinder 311 through the flow meter.

[0047] The oil residue separation mechanism 37 comprises an oil residue separation cylinder 371 which is matched with the built-in groove 315, the inner cavity bottom surface of the oil residue separation cylinder 371 is provided with an electromagnetic valve 372, the inner side of the oil residue separation cylinder 371 is provided with a moving disc 374, the top surface of the moving disc 374 is fixedly connected with a butt joint block 375 which is matched with the first adsorption port 334, it is to be noted that the oil residue separation mechanism 37 is used to automatically remove the condensed precipitate which is left in the first refining cylinder 31 and the second refining cylinder 32 after being filtered by the filter screen 316, the specific process is that when the first lifting rod 331 moves downwards in the inside of the refining inner cylinder 311, the first compression disc 332 at the bottom end of the first lifting rod 331 will extrude the mixture of rapeseed pressed crude oil and brine in the inside of the refining inner cylinder 311, so that the rapeseed pressed crude oil under high pressure will quickly pass through the filter screen 316 and enter the inside of the refining outer cylinder 312, while the condensed precipitate will stay in the inside of the refining inner cylinder 311 due to the blockage of the filter screen 316, when the first compression disc 332 moves to the top surface of the oil residue separation cylinder 371, the first compression disc 332 will scrape all the condensed precipitate in the inside of the refining inner cylinder 311 into the oil residue separation cylinder 371 by scraping, the cavity composed of the first compression disc 332 and the oil residue separation cylinder 371 will be completely isolated from the filter screen 316, the cavity composed of the first compression disc 332 and the oil residue separation cylinder 371 is airtight, it is to be noted that the end of the adsorption pipeline 335 which is far away from the first compression disc 332 is connected with an adsorption device such as a vacuum pump, so that the adsorption pipeline 335 can generate strong adsorption force, then the electromagnetic valve 372 and the adsorption device are opened at the same time, the adsorption force generated by the adsorption pipeline 335 will suck away the condensed precipitate and residual oil, i.e. oil residue in the oil residue separation cylinder 371 through the adsorption pipeline 335, when the adsorption pipeline 335 absorbs the oil residue, the moving disc 374 will move upwards in the oil residue separation cylinder 371 under the action of negative pressure, when the top surface of the moving disc 374 is completely in contact with the bottom surface of the first compression disc 332, it indicates that the oil residue in the oil residue separation cylinder 371 is completely adsorbed clean.

[0048] A limiting sliding groove 373 is formed in the inner side of the oil residue separation cylinder 371, the inner side of the moving disc 374 close to the limiting sliding groove 373 is fixedly connected with a limiting sliding block which is matched with the limiting sliding groove 373, so as to ensure the stability of the moving disc 374 during movement, the butt joint block 375 connected with the top surface of the moving disc 374 is matched with the inner cavity of the adsorption pipeline 335, so that the butt joint block 375 can be completely embedded in the adsorption pipeline 335 when the top surface of the moving disc 374 is in contact with the bottom surface of the first compression disc 332, in addition, it is to be noted that a plurality of vertical fine channels 376 are formed in the side surface of the butt joint block 375, the fine channels 376 can improve the surface tension of the oil residue flowing on the side surface of the butt joint block 375, so as to ensure that the adsorption pipeline 335 can completely adsorb the oil residue in the oil residue separation cylinder 371 clean.

[0049] The working principle of the oil residue separation mechanism 37 in the second refining cylinder 32 is the same as that in the first refining cylinder 31, the difference is that the first compression mechanism 33 is replaced by the second compression mechanism 38, which will not be repeated here, in addition, since the second refining cylinder 32 is not provided with the oil cylinder shell 314, 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 cylinder 371 can be arranged at the center position in the second refining cylinder 32, which ensures that the oil residue separation mechanism 37 in the second refining cylinder 32 is completely the same as that in the first refining cylinder 31.

[0050] The second conveying pipe 383 is connected with the bottom end of the transfer pipeline 34 through a hose, it is necessary to point out that the transfer pipeline 34 can deliver the once degummed rapeseed oil to the second conveying pipe 383 through a hose, the function of the second conveying pipe 383 is the same as that of the first conveying pipe 333, both of which are to deliver the rapeseed oil and salt water to the inside of the refining inner cylinder 311 according to the set mass percentage.

[0051] The top of the first lifting rod 331 is provided with a ball nut matched with the threaded rod 24, and it is noted that when the threaded rod 24 rotates, the threaded rod 24 matched with the ball nut mounted at the top of the first lifting rod 331 can realize the lifting operation of the first lifting rod 331, and the top of the first lifting rod 331 needs to be provided with a receiving groove matched with the threaded rod 24, so that the threaded rod 24 can be stored in the receiving groove, and the second compression rod 381 is driven by the oil cylinder shell 314, specifically, the oil cylinder shell 314 and the second compression rod 381 together form a hydraulic cylinder mechanism, and the oil cylinder shell 314 drives the second compression rod 381 through hydraulic pressure, and it is noted that when the first lifting rod 331 moves downward in the first refining cylinder 31, the second compression rod 381 needs to move upward in the second refining cylinder 32, and when the second compression rod 381 moves upward in the second refining cylinder 32, the second compression disc 382 at the bottom of the second compression rod 381 forms negative pressure in the inner cavity of the corresponding refining inner cylinder 311 of the second refining cylinder 32, so that the corresponding refining inner cylinder 311 of the second refining cylinder 32 can automatically absorb the rapeseed pressed crude oil and brine through the second conveying pipe 383, so that the rapeseed pressed crude oil in the corresponding refining outer cylinder 312 of the first refining cylinder 31 can quickly enter the inside of the corresponding refining inner cylinder 311 of the second refining cylinder 32, and in order to prevent the rapeseed pressed crude oil from entering the inside of the first conveying pipe 333, the first adsorption port 334 and the adsorption pipeline 335 or the second conveying pipe 383, the second adsorption port 384 and the adsorption pipeline 335 when the first lifting rod 331 or the second compression rod 381 extrudes the rapeseed pressed crude oil downward, a one-way valve needs to be arranged in the first conveying pipe 333, the first adsorption port 334, the second conveying pipe 383, the second adsorption port 384 and the adsorption pipeline 335, to prevent the rapeseed pressed crude oil or the brine from flowing back.

[0052] Embodiment 4

[0053] As shown in Figures 1-14 The application discloses a rapeseed oil processing method with oil residue separation function, which is realized based on a rapeseed oil preparation device with oil residue separation function and comprises the following steps:

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

[0055] S2: drive the first compression mechanism 33 by driving mechanism 2, make the first compression mechanism 33 extrude the oil salt water mixture in the first refining cylinder 31, make the oil salt water mixture enter the inside of the second refining cylinder 32 after filtering, 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 matched with the threaded rod 24, so that the threaded rod 24 can be stored in the storage groove, the second compression rod 381 is driven by the oil cylinder shell 314, the first compression mechanism 33 first delivers the rapeseed pressed crude oil and salt water (the salt water can also be salt salt water) to the inner cavity of the refining inner cylinder 311 according to the set proportion, the mass percentage of salt water in rapeseed pressed crude oil is usually 0.5% to 1%, which is adjusted by the person skilled in the art according to the specific rapeseed pressed crude oil, in the process of rapeseed pressed crude oil and salt water entering the inner cavity of the refining inner cylinder 311, the rapeseed pressed crude oil and salt water will be fully mixed, so that the salt water can react with the impurities such as phospholipid, mucilage, resin, protein, sugar, trace metal ions in the rapeseed pressed crude oil to generate coagulation and precipitation, improve the purity and stability of the rapeseed pressed crude oil, then filter the coagulation and precipitation in the first refining cylinder 31 through the filter screen 316, realize the separation of coagulation and precipitation and rapeseed pressed crude oil, finally separate the filtered sediment out automatically through the oil residue separation mechanism 37;

[0056] S3: The oil residue in the first refining cylinder 31 is separated by the oil residue separation mechanism 37 in the oil first refining cylinder 31, and the salt water is added to the inside of the second refining cylinder 32 by the second compression mechanism 38, forming an oil salt water mixture. When the first lifting rod 331 moves downward in the inside of the refining inner cylinder 311, the first compression disc 332 at the bottom end of the first lifting rod 331 will squeeze the mixture of the rapeseed pressed crude oil and the salt water in the inside of the refining inner cylinder 311, so that the rapeseed pressed crude oil will quickly pass through the filter screen 316 into the inside of the refining outer cylinder 312 under high pressure, and the condensed sediment will stay in the inside of the refining inner cylinder 311 due to the blockage of the filter screen 316. When the first compression disc 332 moves to the top surface of the oil residue separation cylinder 371, the first compression disc 332 will scrape all the condensed sediment in the inside of the refining inner cylinder 311 into the oil residue separation cylinder 371 by scraping. The cavity composed of the first compression disc 332 and the oil residue separation cylinder 371 is completely isolated from the filter screen 316. The cavity composed of the first compression disc 332 and the oil residue separation cylinder 371 is airtight. It should be noted that the end of the adsorption pipeline 335 away from the first compression disc 332 is connected to the adsorption equipment, such as a vacuum pump, so that the adsorption pipeline 335 generates a strong adsorption force. Then the electromagnetic valve 372 and the adsorption equipment are opened at the same time. The adsorption force generated by the adsorption pipeline 335 will also suck the condensed sediment and residual oil, i.e. the oil residue in the oil residue separation cylinder 371, through the adsorption pipeline 335. When the adsorption pipeline 335 absorbs the oil residue, the moving disc 374 will move upward in the oil residue separation cylinder 371 under the action of negative pressure. When the top surface of the moving disc 374 is in complete 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 and cleaned.

[0057] 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 passes through the filter and enters the external pipeline 35, and finally is transported to the oil outlet pipeline 4 by the butt joint pipeline 36 to collect the filtered rapeseed pressed refined oil.

[0058] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent scope of the present application.

Claims

1. A rapeseed oil preparation device with oil residue separation function, characterized in that, include: The equipment housing (1) has a drive mechanism (2) on its top and an oil outlet pipe (4) connected to the center of the bottom surface of the equipment housing (1). The refining mechanism (3) has at least three sets, and the three sets of refining mechanisms (3) are arranged in a circular shape at equal intervals inside the equipment shell (1); The refining mechanism (3) includes 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 provided inside the first refining cylinder (31). A second compression mechanism (38) is provided inside the second refining cylinder (32). An external pipe (35) is connected to the bottom of the second refining cylinder (32). A docking pipe (36) is connected between the external pipe (35) and the oil outlet pipe (4). An oil residue separation mechanism (37) is provided at the bottom of the inner cavity of both the first refining cylinder (31) and the second refining cylinder (32). The first refining cylinder (31) includes a refining inner cylinder (311), a refining outer cylinder (312) is nested on the outside of the refining inner cylinder (311), an oil outlet port (313) is opened on the bottom surface of the refining outer cylinder (312), the oil outlet port (313) is connected to the top of the transfer pipe (34), an oil cylinder shell (314) is fixedly connected to the center of the inner cavity of the refining inner cylinder (311), an internal groove (315) is opened at the bottom of the inner cavity of the refining inner cylinder (311), and a filter screen (316) is installed on the bottom side of the refining inner cylinder (311). 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 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). The oil residue separation mechanism (37) includes an oil residue separation cylinder (371), which fits into 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 provided 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).

2. The rapeseed oil preparation equipment with oil residue separation function according to claim 1, characterized in that, The drive mechanism (2) includes a drive motor (21), the output shaft of the drive 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 a threaded rod (24) is fixedly connected to the center of the bottom surface of the transmission gear (23).

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

4. The rapeseed oil preparation equipment with oil residue separation function according to claim 3, characterized in that, The second compression mechanism (38) includes a second compression rod (381), which is matched with the cylinder housing (314). The bottom end of the second compression rod (381) is fixedly connected to a second compression disc (382). The bottom surface of the second compression disc (382) is provided with a second adsorption port (384), and the top surface of the second compression disc (382) is fixedly connected to a second delivery pipe (383) and an adsorption pipe (335).

5. The rapeseed oil preparation equipment with oil residue separation function according to claim 4, characterized in that, The second delivery pipe (383) is connected to the bottom end of the transfer pipe (34) via a flexible hose.

6. The rapeseed oil preparation equipment with oil residue separation function according to claim 5, characterized in that, The top of the first lifting rod (331) is fitted with a ball nut that matches the threaded rod (24).

7. A rapeseed oil processing method with oil residue separation function, wherein the rapeseed oil processing method is implemented based on a rapeseed oil preparation equipment with oil residue separation function as described in any one of claims 1-6, characterized in that, Includes the following steps: S1: The rapeseed oil and brine are heated to 60 to 80 degrees Celsius, and then the heated rapeseed oil and brine are transported to the inside of the first refining cylinder (31) through the first compression mechanism (33) in a set ratio, so that the rapeseed oil and brine are fully mixed to form an oil-salt mixture. S2: Drive the first compression mechanism (33) through the drive mechanism (2) to squeeze the oil-salt mixture inside the first refining cylinder (31) so that the oil-salt mixture enters the interior of the second refining cylinder (32) after being filtered. S3: The oil residue inside the first refining cylinder (31) is separated by the slag separation mechanism (37) in the first refining cylinder (31), and brine is added to the inside of the second refining cylinder (32) by the second compression mechanism (38) to form an oil-salt mixture; S4: Use the second compression mechanism (38) to squeeze the oil-salt mixture inside the second refining cylinder (32), so that the oil-salt mixture passes through the filter and enters the external pipe (35), and is finally transported to the oil outlet pipe (4) by the connecting pipe (36) to collect the filtered rapeseed pressed refined oil.

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