A rapeseed oil refining and deodorizing device with multi-stage gas purification function

Abstract

The invention discloses a rapeseed oil refining and deodorizing device with a multi-stage gas purification function, which relates to the technical field of rapeseed oil processing. The refining and deodorizing device comprises a base frame, a first-level adsorption tank, a first-level filter pump, a second-level adsorption tank, a second-level filter pump and a third-level adsorption tank. The third-level adsorption tank comprises a tank body, a vacuum tank, a vacuum pump and an oil inlet pipe. The first-level adsorption tank, the first-level filter pump, the second-level adsorption tank, the second-level filter pump, the tank body, the vacuum tank and the vacuum pump are all fixedly connected to the base frame. The first-level filter pump is connected to the first-level adsorption tank and the second-level adsorption tank through a pipeline. The second-level filter pump is connected to the second-level adsorption tank and the oil inlet pipe through a pipeline. The odor components in the rapeseed oil are deeply removed, and the cumulative adsorption effect far exceeds that of a single adsorption. By accurately controlling the injection amount, injection speed and injection angle of superheated steam, the oil body is heated to circulate in a direction, so that the steam and the fluid are in a continuously moving flow state for full contact and deodorization.

Description

Technical Field

[0001] The invention relates to the technical field of rapeseed oil processing, in particular to a rapeseed oil refining and deodorizing device with a multi-stage gas purification function. Background Art

[0002] Freshly extracted rapeseed oil often exhibits an unpleasant odor, stemming from substances such as glucosinolates and sinapines found in the rapeseed seeds. During the oil extraction process, these substances decompose to form volatile sulfur compounds such as mercaptans and hydrogen sulfide, as well as aldehydes, ketones, and pyrazines. These components intertwine to create rapeseed oil's characteristic "green" and "rancid" odors. To improve rapeseed oil's quality and meet diverse market demands for both edible and processed foods, a series of refining processes, including degumming, deacidification, decolorization, and deodorization, are required to transform crude rapeseed oil into high-quality refined oil that meets various standards.

[0003] Currently, most rapeseed oil deodorization processes utilize vacuum steam deodorization. This method utilizes a low-pressure, vacuum environment, combined with steam purge action, to facilitate the volatilization of odorous molecules from the oil phase, thereby removing them from the system and achieving the desired deodorization effect. This method not only achieves high deodorization efficiency but also partially removes free fatty acids. However, this process has significant drawbacks, such as high energy consumption and prolonged deodorization time, which significantly impacts production efficiency. Summary of the Invention

[0004] The object of the present invention is to provide a rapeseed oil refining and deodorizing device with a multi-stage gas purification function to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: A rapeseed oil refining and deodorizing device with a multi-stage gas purification function includes a base frame, a first-stage adsorption tank, a first-stage filter pump, a second-stage adsorption tank, a second-stage filter pump and a third-stage adsorption tank. The third-stage adsorption tank includes a tank body, a vacuum tank, a vacuum pump and an oil inlet pipe. The first-stage adsorption tank, the first-stage filter pump, the second-stage adsorption tank, the second-stage filter pump, the tank body, the vacuum tank and the vacuum pump are all fixedly connected to the base frame. The first-stage filter pump is connected to the first-stage adsorption tank and the second-stage adsorption tank through a pipeline. The second-stage filter pump is connected to the second-stage adsorption tank and the oil inlet pipe through a pipeline.

[0006] The present invention discloses a device for refining and deodorizing rapeseed oil. The rapeseed oil is preheated and passed into a first-stage adsorption tank. After the rapeseed oil and activated white clay are stirred at a low speed in the first-stage adsorption tank, the activated white clay containing odor is quickly separated by a first-stage filter pump. The oil after the first-stage adsorption treatment is passed into a second-stage adsorption tank. The oil after the first-stage adsorption treatment and activated carbon are repeatedly stirred in the second-stage adsorption tank. The activated carbon for adsorbing odor is separated by a second-stage filter pump. The oil containing a small amount of odor is passed into a third-stage adsorption tank through an oil inlet pipe. The vacuum pump continuously pumps air to reduce the pressure in the tank. The third-stage adsorption tank first heats the oil to a specified temperature, sprays an appropriate amount of superheated steam into the hot oil, and the steam is in continuous contact with the oil. The steam entrains odor molecules that have obtained sufficient energy and whose volatility increases sharply, and continuously separates them from the oil phase and is taken out of the deodorizing equipment together by the vacuum pump, thereby achieving the purpose of removing odor and making the odor of the oil pure and deodorized. The vacuum tank plays a role in stabilizing the vacuum degree and preventing pressure fluctuations from affecting the deodorizing effect.

[0007] Furthermore, the three-stage adsorption tank also includes a heating mechanism, a steam injection mechanism and an oil circulation mechanism. The tank body is provided with a first side hole, a second side hole, a top hole, a third side hole and a vacuum port. The vacuum tank is connected to the vacuum pump and the vacuum port through pipelines. The heating mechanism includes a jacket liner, a first sleeve and a second sleeve. The first sleeve is fixedly connected to the first side hole, and the second sleeve is fixedly connected to the second side hole. The steam injection mechanism includes a servo motor and an air pipe. The output end of the servo motor is rotatably connected to the third side hole, the air pipe is fixedly connected to the top hole, and the jacket liner is fixedly connected to the oil circulation mechanism and the tank body.

[0008] The oil containing a small amount of odor is introduced into the three-stage adsorption tank through the oil inlet pipe. The heater introduces steam of specified temperature into the first sleeve. The steam passing through the first sleeve completes heat exchange with the grease in the tank through the jacket lining, so that the grease is heated to the specified deodorization temperature. The pressure in the tank is pumped to an extremely low level by a vacuum pump, forming a vacuum environment, which greatly reduces the resistance that odor molecules need to overcome to escape and improves the deodorization efficiency of the oil. The servo motor outputs fixed-axis torque to the steam injection mechanism to accurately control the injection amount, injection speed and injection angle of the superheated steam. The oil circulation mechanism keeps the oil in motion, allowing the steam to be evenly dispersed in the grease.

[0009] Furthermore, the heating mechanism also includes a heater and a water cooler. The heater and the water cooler are both fixedly connected to the base frame. The heater is connected to the first sleeve through a pipe, and the water cooler is connected to the second sleeve through a pipe.

[0010] The temperature of the deodorized grease is still relatively high. To prevent the grease from oxidizing and deteriorating at high temperatures, the chiller circulates cold water into the second casing to exchange heat with the oil, causing the grease temperature to drop rapidly.

[0011] Furthermore, the steam injection mechanism also includes a side frame, a servo cylinder, a first gear, a turntable mechanism and a jet gun. The side frame is fixedly connected to the tank body and the servo motor. The output end of the servo motor is fixedly connected to the servo cylinder. The output end of the servo cylinder is fixedly connected to the first gear. The turntable mechanism includes a ring frame and a ring table. The ring frame is provided with a ring gear pair. The first gear is in contact with the ring gear pair. A side ring gear groove is provided on the ring table. The side ring gear groove is engaged with the tooth surface of the first gear. The jet gun is connected to the gas pipe through a pipeline.

[0012] The servo motor outputs fixed-axis torque to the servo cylinder, which transmits torque to the first gear through the servo cylinder. The first gear first contacts the ring gear pair, and the first gear meshes with the tooth surface of the ring gear pair, converting the fixed-axis torque of the servo motor into the self-rotation of the ring frame in the tank body. The self-rotation of the ring frame drives the self-rotation of the jet gun, and the steam of specified temperature is provided to the jet gun through the air pipe. The jet gun rotates to spray the steam spirally down to fully contact the oil body. The servo cylinder pushes the first gear to no longer contact the ring gear pair, and the first gear meshes with the tooth surface of the side ring tooth groove, thereby changing the inclination angle of the jet gun.

[0013] Furthermore, the steam injection mechanism also includes an inclination plate and an assembly frame, the turntable mechanism also includes a gear rod and a bevel gear, and a first through hole is also provided on the annular frame. The inclination plate, the assembly frame, the gear rod, the bevel gear, and the first through hole are all provided in several groups, and several groups of inclination plates, the assembly frame, the gear rod, the bevel gear, and the first through hole are evenly distributed along the circumference of the annular table. The annular frame is rotatably connected to the tank body, the annular table is in contact with the annular frame, and an upper ring gear groove is also provided on the annular table. The gear rod is engaged with the tooth surface of the upper ring gear groove, the gear rod is rotatably connected to the first through hole, the gear rod is fixedly connected to the bevel gear, a bevel gear ring is provided on the inclination plate, the bevel gear is engaged with the tooth surface of the bevel gear ring, the inclination plate is rotatably connected to the assembly frame, the assembly frame is fixedly connected to the annular frame, and the inclination plate is fixedly connected to the jet gun.

[0014] The servo cylinder pushes the first gear so that it no longer contacts the ring gear pair. The first gear meshes with the tooth surface of the side ring tooth groove, converting the fixed-axis torque of the first gear into the self-rotation of the ring table in the ring frame. Due to the friction between the ring frame and the tank body, the ring frame is relatively fixed, the ring table rotates, and the upper ring tooth groove meshes with the tooth surface of the gear rod, transmitting the ring table torque to the gear rod. The bevel gear is assembled through the gear rod, and the bevel gear meshes with the tooth surface of the bevel gear ring. The inclination plate rotates on the assembly frame to adjust the inclination angle of the jet gun and accurately control the injection amount, injection speed and injection angle of the superheated steam.

[0015] Furthermore, the oil circulation mechanism includes a drainage pipe, a reflux mechanism and an oil separator. The drainage pipe is connected to the oil inlet pipe through a pipeline. The reflux mechanism includes a base plate and a main tower. The base plate is fixedly connected to the jacket liner and the main tower. A first one-way valve hole and a second through hole are provided on the oil separator. A second one-way valve hole and a third through hole are provided on the base plate. The second through hole and the third through hole are fixedly connected to the drainage pipe. The oil separator is fixedly connected to the jacket liner and the main tower. Several groups of first one-way valve holes and second one-way valve holes are provided. Several groups of first one-way valve holes are evenly distributed along the circumference of the oil separator, and several groups of second one-way valve holes are evenly distributed along the circumference of the base plate.

[0016] The oil containing a small amount of odor enters the drainage pipe through the oil inlet pipe and is transported to the bottom of the bottom plate through the drainage pipe. As the oil is continuously input, the oil enters the main tower and flows out from the gap between the reflux mechanism and the oil outlet mechanism, falling onto the oil separator. As the oil continues to fall onto the oil separator, the weight of the oil exceeds the elastic resistance of the first one-way valve hole, and the oil falls to the bottom plate through the first one-way valve hole. As the weight of the oil on the bottom plate exceeds the elastic resistance of the second one-way valve hole, the oil falls between the bottom plate and the tank body through the second one-way valve hole, completing the cycle.

[0017] Furthermore, the reflux mechanism also includes a sealing pin and a first shell cover, the sealing pin and the first shell cover are fixedly connected to the main tower, the main tower is provided with an inner sealing ring, the oil circulation mechanism also includes an oil outlet mechanism, the oil outlet mechanism includes a ball valve stem and a spring, the ball valve stem is provided with a valve core cavity and an oil outlet hole, the ball valve stem is slidingly connected to the main tower, the spring is fixedly connected to the ball valve stem and the main tower, the valve core cavity is in contact with the sealing pin, and the oil outlet hole is in contact with the inner sealing ring.

[0018] The oil enters the drainage pipe through the oil inlet pipe and is transported to the bottom of the base plate through the drainage pipe. As the oil continues to be input, the oil enters the main tower and pushes the ball valve stem to squeeze the spring. The ball valve stem slides in the main tower away from the base plate. The sealing pin no longer seals the lower end of the valve core cavity, and the oil outlet hole is no longer blocked by the inner sealing ring. The oil overflows through the valve core cavity and the oil outlet hole to the gap between the first shell cover and the second shell cover. The oil that falls between the base plate and the tank body continues to expand as it is heated and boiled, pushing open the ball valve stem and overflowing onto the oil separator, completing the oil circulation.

[0019] Furthermore, the oil outlet mechanism also includes a second shell cover, which is fixedly connected to the ball valve stem. The second shell cover is provided with an arcuate surface, and the arcuate surface is provided in several groups, which are evenly distributed along the circumference of the arcuate surface of the second shell cover.

[0020] The heated oil enters the main tower and pushes the ball valve stem to squeeze the spring. The oil outlet is no longer blocked by the inner sealing ring. The oil overflows through the valve core cavity and the oil outlet to the gap between the first shell cover and the second shell cover. The oil overflows through several groups of arc holes evenly distributed along the circumference of the arc surface of the second shell cover. The oil is evenly coated on the upper surface of the second shell cover and fully contacts with the steam for deodorization.

[0021] Compared with the prior art, the present invention has the following advantages: the present invention designs a multi-stage adsorption mechanism, the rapeseed oil is preheated and introduced into the first-stage adsorption tank for low-speed stirring with activated clay, the clay is separated by the first-stage filter pump, the oil is introduced into the second-stage adsorption tank for repeated stirring with activated carbon, the activated carbon is separated by the second-stage filter pump, and the oil is introduced into the third-stage adsorption tank for vacuum steam deodorization, and the odor components in the rapeseed oil are deeply removed through the progressive adsorption links, thereby improving the oil quality in all aspects; the present invention designs a steam injection mechanism, the servo motor outputs a fixed-axis torque, the first gear is meshed with the tooth surface of the ring gear pair, the ring frame drives the jet gun to rotate, the jet gun rotates to spray steam spirally, the servo cylinder pushes the first gear no longer in contact with the ring gear pair, the first gear is meshed with the tooth surface of the side ring tooth groove, the ring table rotates in the ring frame, the inclination plate adjusts the inclination angle of the jet gun, and accurately controls the injection amount, injection speed and injection angle of the superheated steam; the present invention An oil circulation mechanism is designed, and the oil is transported to the bottom of the bottom plate through a drainage pipe. The oil is continuously input into the main tower, pushing the ball valve stem to squeeze the spring to slide upward. The oil overflows through the valve core cavity and the oil outlet hole to the gap between the first shell cover and the second shell cover and falls onto the oil separator. The oil that falls between the bottom plate and the tank body continues to expand as it is heated and boiled, pushing open the ball valve stem and overflowing onto the oil separator. The weight of the oil exceeds the elastic resistance of the first one-way valve hole and falls to the bottom plate through the first one-way valve hole. Similarly, the weight of the oil exceeds the elastic resistance of the second one-way valve hole and falls between the bottom plate and the tank body, completing the oil circulation. The multi-stage adsorption refined rapeseed oil of the present invention deeply removes the odor components in the rapeseed oil, and the cumulative adsorption effect far exceeds the single adsorption. By precisely controlling the injection amount, injection speed and injection angle of the superheated steam, the oil is heated to circulate in a direction, so that the steam and the fluid are in a constantly moving flow state and fully contact and deodorize, thereby greatly improving the deodorization efficiency of the rapeseed oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a partial cross-sectional view of the three-stage adsorption tank of the present invention;

[0024] Figure 3 Schematic diagram of the steam injection mechanism structure of the present invention;

[0025] Figure 4 for Figure 3 A magnified schematic diagram of a local area A;

[0026] Figure 5 It is a schematic structural diagram of the turntable mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the oil circulation mechanism of the present invention;

[0028] Figure 7 for Figure 6 A schematic diagram of a partial B enlargement;

[0029] Figure 8 for Figure 6 A schematic diagram of the partial C enlargement.

[0030] In the figure: 1. base frame; 2. primary adsorption tank; 3. primary filter pump; 4. secondary adsorption tank; 5. secondary filter pump; 6. tertiary adsorption tank; 61. tank body; 611. first side hole; 612. second side hole; 613. top hole; 614. third side hole; 615. vacuum port; 62. vacuum tank; 63. vacuum pump; 64. heating mechanism; 641. jacket lining; 642. first sleeve; 643. heater; 644. second sleeve; 645. water cooler; 65. steam injection mechanism; 651. side frame; 652. servo motor; 653. servo cylinder; 654. first gear; 655. turntable mechanism; 6551. ring frame; 65511. first through hole; 65512. ring gear pair; 6552. ring table; 65521. side ring tooth groove; 655 22. Upper ring tooth groove; 6553. Gear rod; 6554. Bevel gear; 656. Inclination plate; 6561. Bevel gear ring; 657. Assembly frame; 658. Air jet gun; 659. Air pipe; 66. Oil circulation mechanism; 661. Drain pipe; 662. Reflux mechanism; 6621. Bottom plate; 66211. Second one-way valve hole; 66212. Third through hole; 6622. Main tower ; 66221, inner sealing ring; 6623, sealing pin; 6624, first shell cover; 663, oil outlet mechanism; 6631, ball valve stem; 66311, valve core cavity; 66312, oil outlet hole; 6632, spring; 6633, second shell cover; 66331, arc hole; 664, oil separator; 6641, first one-way valve hole; 6642, second through hole; 67, oil inlet pipe. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0032] like Figure 1 、 Figure 2 、 Figure 3As shown, the present invention provides a technical solution of a rapeseed oil refining and deodorizing device with a multi-stage gas purification function, which includes a base frame 1, a first-level adsorption tank 2, a first-level filter pump 3, a second-level adsorption tank 4, a second-level filter pump 5 and a third-level adsorption tank 6. The third-level adsorption tank 6 includes a tank body 61, a vacuum tank 62, a vacuum pump 63 and an oil inlet pipe 67. The first-level adsorption tank 2, the first-level filter pump 3, the second-level adsorption tank 4, the second-level filter pump 5, the tank body 61, the vacuum tank 62 and the vacuum pump 63 are all fixedly connected to the base frame 1, the first-level filter pump 3 is connected to the first-level adsorption tank 2 and the second-level adsorption tank 4 through a pipeline, and the second-level filter pump 5 is connected to the second-level adsorption tank 4 and the oil inlet pipe 67 through a pipeline.

[0033] The present invention is a device for refining and deodorizing rapeseed oil. The rapeseed oil is preheated and passed into a first-stage adsorption tank 2. After the rapeseed oil and activated white clay are stirred at a low speed in the first-stage adsorption tank 2, the activated white clay containing odor is quickly separated by a first-stage filter pump 3. The oil after the first-stage adsorption treatment is passed into a second-stage adsorption tank 4. The oil after the first-stage adsorption treatment and activated carbon are repeatedly stirred in the second-stage adsorption tank 4. The activated carbon that absorbs odor is separated by a second-stage filter pump 5. The oil containing a small amount of odor is passed into a third-stage adsorption tank 6 through an oil inlet pipe 67. The oil is vacuum-filtered. The pump 63 continuously pumps air to reduce the pressure in the tank body 61. The three-stage adsorption tank 6 first heats the oil to a specified temperature and injects an appropriate amount of superheated steam into the hot oil. The steam is in constant contact with the oil and grease, and the odor molecules that have obtained sufficient energy and increased volatility are continuously separated from the oil phase by the steam. They are then taken out of the deodorization equipment together by the vacuum pump 63, thereby achieving the purpose of removing odor and making the grease smell pure and deodorized. The vacuum tank 62 plays the role of stabilizing the vacuum degree to prevent pressure fluctuations from affecting the deodorization effect.

[0034] like Figure 2 、 Figure 3 As shown, the three-stage adsorption tank 6 also includes a heating mechanism 64, a steam injection mechanism 65 and an oil circulation mechanism 66. The tank body 61 is provided with a first side hole 611, a second side hole 612, a top hole 613, a third side hole 614 and a vacuum port 615. The vacuum tank 62 is connected to the vacuum pump 63 and the vacuum port 615 through a pipeline. The heating mechanism 64 includes a jacket liner 641, a first sleeve 642 and a second sleeve 644. The first sleeve 642 is fixedly connected to the first side hole 611, and the second sleeve 644 is fixedly connected to the second side hole 612. The steam injection mechanism 65 includes a servo motor 652 and an air pipe 659. The output end of the servo motor 652 is rotatably connected to the third side hole 614, the air pipe 659 is fixedly connected to the top hole 613, and the jacket liner 641 is fixedly connected to the oil circulation mechanism 66 and the tank body 61.

[0035] The oil containing a small amount of odor is introduced into the three-stage adsorption tank 6 through the oil inlet pipe 67. The heater 643 introduces steam of specified temperature into the first sleeve 642. The steam passing through the first sleeve 642 completes heat exchange with the grease in the tank body 61 through the jacket liner 641, so that the grease is heated to the specified deodorization temperature. The pressure in the tank body 61 is pumped to an extremely low level by the vacuum pump 63, forming a vacuum environment, which greatly reduces the resistance that the odor molecules need to overcome to escape and improves the deodorization efficiency of the oil. The servo motor 652 outputs a fixed-axis torque to the steam injection mechanism 65 to accurately control the injection amount, injection speed and injection angle of the superheated steam. The oil circulation mechanism 66 keeps the oil in motion so that the steam is evenly dispersed in the grease.

[0036] like Figure 2 As shown, the heating mechanism 64 also includes a heater 643 and a water cooler 645. The heater 643 and the water cooler 645 are both fixedly connected to the base frame 1. The heater 643 is connected to the first sleeve 642 through a pipe, and the water cooler 645 is connected to the second sleeve 644 through a pipe.

[0037] The temperature of the deodorized grease is still relatively high. To prevent the grease from oxidizing and deteriorating at high temperatures, the water cooler 645 circulates cold water into the second sleeve 644 to exchange heat with the oil, thereby rapidly lowering the grease temperature.

[0038] like Figure 4 、 Figure 5 As shown, the steam injection mechanism 65 also includes a side frame 651, a servo cylinder 653, a first gear 654, a turntable mechanism 655 and an air injection gun 658. The side frame 651 is fixedly connected to the tank body 61 and the servo motor 652. The output end of the servo motor 652 is fixedly connected to the servo cylinder 653, and the output end of the servo cylinder 653 is fixedly connected to the first gear 654. The turntable mechanism 655 includes a ring frame 6551 and a ring platform 6552. The ring frame 6551 is provided with a ring gear pair 65512, and the first gear 654 is in contact with the ring gear pair 65512. The ring platform 6552 is provided with a side ring tooth groove 65521, which meshes with the tooth surface of the first gear 654. The air injection gun 658 is connected to the gas pipe 659 through a pipeline.

[0039] The servo motor 652 outputs a fixed-axis torque to the servo cylinder 653, which transmits the torque to the first gear 654 through the servo cylinder 653. The first gear 654 first contacts the ring gear pair 65512, and the first gear 654 meshes with the tooth surface of the ring gear pair 65512. The fixed-axis torque of the servo motor 652 is converted into the ring frame 6551 rotating in the tank body 61. The ring frame 6551 rotates, driving the air gun 658 to rotate. Steam at a specified temperature is provided to the air gun 658 through the air pipe 659. The air gun 658 rotates to spray the steam spirally downward to fully contact the oil body. The servo cylinder 653 pushes the first gear 654 so that it no longer contacts the ring gear pair 65512. The first gear 654 meshes with the tooth surface of the side ring tooth groove 65521, thereby changing the inclination angle of the air gun 658.

[0040] like Figure 4 、 Figure 5 As shown, the steam injection mechanism 65 further includes an inclination plate 656 and an assembly frame 657, the turntable mechanism 655 further includes a gear rod 6553 and a bevel gear 6554, and the ring frame 6551 is further provided with a first through hole 65511. The inclination plate 656, the assembly frame 657, the gear rod 6553, the bevel gear 6554, and the first through hole 65511 are provided in several groups, and the several groups of inclination plates 656, the assembly frame 657, the gear rod 6553, the bevel gear 6554, and the first through hole 65511 are evenly distributed along the circumference of the ring platform 6552. The ring frame 6551 is rotatably connected to the tank body 61. The ring platform 6552 is in contact with the ring frame 6551. The ring platform 6552 is also provided with an upper ring tooth groove 65522. The gear rod 6553 is engaged with the tooth surface of the upper ring tooth groove 65522. The gear rod 6553 is rotatably connected to the first through hole 65511. The gear rod 6553 is fixedly connected to the bevel gear 6554. The inclination plate 656 is provided with a bevel gear ring 6561. The bevel gear 6554 is engaged with the tooth surface of the bevel gear ring 6561. The inclination plate 656 is rotatably connected to the assembly frame 657. The assembly frame 657 is fixedly connected to the ring frame 6551. The inclination plate 656 is fixedly connected to the air gun 658.

[0041] The servo cylinder 653 pushes the first gear 654 so that it no longer contacts the ring gear pair 65512. The first gear 654 meshes with the tooth surface of the side ring tooth groove 65521, converting the fixed-axis torque of the first gear 654 into the ring table 6552 rotating within the ring frame 6551. Due to the friction between the ring frame 6551 and the tank body 61, the ring frame 6551 is relatively fixed, the ring table 6552 rotates, and the upper ring tooth groove 65522 meshes with the tooth surface of the gear rod 6553, transmitting the torque of the ring table 6552 to the gear rod 6553. The bevel gear 6554 is assembled through the gear rod 6553, and the bevel gear 6554 meshes with the tooth surface of the bevel gear ring 6561. The inclination plate 656 rotates on the assembly frame 657 to adjust the inclination angle of the jet gun 658 and accurately control the injection amount, injection speed and injection angle of the superheated steam.

[0042] like Figure 6 、 Figure 7 、 Figure 8 As shown, the oil circulation mechanism 66 includes a drainage pipe 661, a return mechanism 662 and an oil separator 664. The drainage pipe 661 is connected to the oil inlet pipe 67 through a pipeline. The return mechanism 662 includes a bottom plate 6621 and a main tower 6622. The bottom plate 6621 is fixedly connected to the jacket liner 641 and the main tower 6622. The oil separator 664 is provided with a first one-way valve hole 6641 and a second through hole 6642. The bottom plate 6621 is provided with a second one-way valve hole 662 11 and the third through hole 66212, the second through hole 6642 and the third through hole 66212 are all fixedly connected to the drainage pipe 661, the oil separator 664 is fixedly connected to the jacket liner 641 and the main tower 6622, and the first one-way valve hole 6641 and the second one-way valve hole 66211 are each provided with several groups, several groups of first one-way valve holes 6641 are evenly distributed along the circumference of the oil separator 664, and several groups of second one-way valve holes 66211 are evenly distributed along the circumference of the bottom plate 6621.

[0043] The oil containing a small amount of odor enters the drainage pipe 661 through the oil inlet pipe 67, and is transported to the bottom of the bottom plate 6621 through the drainage pipe 661. As the oil is continuously input, the oil enters the main tower 6622 and flows out from the gap between the reflux mechanism 662 and the oil outlet mechanism 663, and falls onto the oil separator 664. As the oil continues to fall onto the oil separator 664, the weight of the oil exceeds the elastic resistance of the first one-way valve hole 6641, and the oil falls to the bottom plate 6621 through the first one-way valve hole 6641. As the weight of the oil on the bottom plate 6621 exceeds the elastic resistance of the second one-way valve hole 66211, the oil falls between the bottom plate 6621 and the tank body 61 through the second one-way valve hole 66211, completing the cycle.

[0044] like Figure 7 、 Figure 8 As shown, the reflux mechanism 662 also includes a sealing pin 6623 and a first shell cover 6624. The sealing pin 6623 and the first shell cover 6624 are both fixedly connected to the main tower 6622. The main tower 6622 is provided with an inner sealing ring 66221. The oil circulation mechanism 66 also includes an oil outlet mechanism 663. The oil outlet mechanism 663 includes a ball valve stem 6631 and a spring 6632. The ball valve stem 6631 is provided with a valve core cavity 66311 and an oil outlet hole 66312. The ball valve stem 6631 is slidably connected to the main tower 6622. The spring 6632 is fixedly connected to the ball valve stem 6631 and the main tower 6622. The valve core cavity 66311 is in contact with the sealing pin 6623, and the oil outlet hole 66312 is in contact with the inner sealing ring 66221.

[0045] The oil enters the drainage pipe 661 through the oil inlet pipe 67 and is transported to the bottom of the bottom plate 6621 through the drainage pipe 661. As the oil is continuously input, the oil enters the main tower 6622, pushes the ball valve stem 6631 to squeeze the spring 6632, and the ball valve stem 6631 slides in the main tower 6622 away from the bottom plate 6621. The sealing pin 6623 no longer seals the lower end of the valve core cavity 66311, and the oil outlet hole 66312 is no longer blocked by the inner sealing ring 66221. The oil overflows through the valve core cavity 66311 and the oil outlet hole 66312 into the gap between the first shell cover 6624 and the second shell cover 6633. The oil that falls between the bottom plate 6621 and the tank body 61 continues to expand as it is heated and boiled, pushing open the ball valve stem 6631 and overflowing onto the oil separator 664, completing the oil circulation.

[0046] like Figure 8 As shown, the oil outlet mechanism 663 also includes a second shell cover 6633, which is fixedly connected to the ball valve stem 6631. The second shell cover 6633 is provided with an arcuate hole 66331, and the arcuate hole 66331 is provided with several groups. The several groups of arcuate holes 66331 are evenly distributed in an array along the circumference of the arcuate surface of the second shell cover 6633.

[0047] The heated oil enters the main tower 6622, pushes the ball valve stem 6631 and compresses the spring 6632. The oil outlet hole 66312 is no longer blocked by the inner sealing ring 66221. The oil overflows into the gap between the first shell cover 6624 and the second shell cover 6633 through the valve core cavity 66311 and the oil outlet hole 66312. The oil overflows through several groups of arcuate holes 66331 evenly distributed along the circumference of the arcuate surface of the second shell cover 6633. The oil is evenly coated on the upper surface of the second shell cover 6633 and fully contacts with the steam for deodorization.

[0048] The working principle of the present invention is as follows: rapeseed oil is preheated and introduced into the first-level adsorption tank 2 and stirred at a low speed with activated clay. After the clay is separated by the first-level filter pump 3, it is introduced into the second-level adsorption tank 4 and repeatedly stirred with activated carbon. The activated carbon is separated by the second-level filter pump 5 and introduced into the third-level adsorption tank 6. The heater 643 introduces steam of a specified temperature into the first sleeve 642 to exchange heat with the oil. The pressure in the tank body 61 is reduced by the vacuum pump 63, which greatly reduces the resistance that the odor molecules need to overcome to escape. The oil body is transported to the bottom of the bottom plate 6621 through the drainage pipe 661, and the oil body is continuously input. The oil enters the main tower 6622, pushing the ball valve stem 6631 to squeeze the spring 6632 and slide upward. The oil overflows through the valve core cavity 66311 and the oil outlet hole 66312 to the gap between the first shell cover 6624 and the second shell cover 6633 and falls onto the oil separator 664. The weight of the oil exceeds the elastic resistance of the first one-way valve hole 6641 and falls to the bottom plate 6621 through the first one-way valve hole 6641. Similarly, the weight of the oil exceeds the elastic resistance of the second one-way valve hole 66211 and falls between the bottom plate 6621 and the tank body 61, completing the oil circulation. The servo motor 652 outputs The fixed axis torque, the first gear 654 meshes with the tooth surface of the ring gear pair 65512, the ring frame 6551 drives the jet gun 658 to rotate, the jet gun 658 rotates to spray the steam spirally, the servo cylinder 653 pushes the first gear 654 to no longer contact the ring gear pair 65512, the first gear 654 meshes with the tooth surface of the side ring tooth groove 65521, the ring platform 6552 rotates in the ring frame 6551, the inclination plate 656 adjusts the inclination angle of the jet gun 658, accurately controls the injection amount, injection speed and injection angle of the superheated steam, and the oil body passes through several The overflow from the arc-shaped surface 66331 is evenly coated on the upper surface of the second shell cover 6633 and is fully in contact with the steam for deodorization. Through the continuous contact between steam and grease, the odor molecules that have obtained sufficient energy and increased volatility are entrained by the steam and continuously separated from the grease phase and are taken out of the deodorization equipment together by the vacuum pump 63, thereby achieving the purpose of removing odor. The temperature of the deodorized grease is still relatively high. In order to prevent the grease from oxidizing and deteriorating at high temperatures, the chiller 645 circulates cold water into the second sleeve 644 to exchange heat with the oil body to quickly reduce the temperature of the grease.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rapeseed oil refining and deodorizing device with a multi-stage gas purification function, characterized in that: The deodorizing device comprises a base frame (1), a primary adsorption tank (2), a primary filter pump (3), a secondary adsorption tank (4), a secondary filter pump (5) and a tertiary adsorption tank (6); the tertiary adsorption tank (6) comprises a tank body (61), a vacuum tank (62), a vacuum pump (63) and an oil inlet pipe (67); the primary adsorption tank (2), the primary filter pump (3), the secondary adsorption tank (4), the secondary filter pump (5), the tank body (61), the vacuum tank (62) and the vacuum pump (63) are all fixedly connected to the base frame (1); the primary filter pump (3) is connected to the primary adsorption tank (2) and the secondary adsorption tank (4) through a pipeline; the secondary filter pump (5) is connected to the secondary adsorption tank (4) and the oil inlet pipe (67) through a pipeline; The three-stage adsorption tank (6) further includes a heating mechanism (64), a steam injection mechanism (65) and an oil circulation mechanism (66). The tank body (61) is provided with a first side hole (611), a second side hole (612), a top hole (613), a third side hole (614) and a vacuum port (615). The vacuum tank (62) is connected to the vacuum pump (63) and the vacuum port (615) through a pipeline. The heating mechanism (64) includes a jacket liner (641), a first sleeve (642) and a second sleeve (64 4), the first sleeve (642) is fixedly connected to the first side hole (611), the second sleeve (644) is fixedly connected to the second side hole (612), the steam injection mechanism (65) includes a servo motor (652) and an air supply pipe (659), the output end of the servo motor (652) is rotatably connected to the third side hole (614), the air supply pipe (659) is fixedly connected to the top hole (613), and the jacket liner (641) is fixedly connected to the oil circulation mechanism (66) and the tank body (61); The oil circulation mechanism (66) includes a drainage pipe (661), a return mechanism (662) and an oil separator (664). The drainage pipe (661) is connected to the oil inlet pipe (67) through a pipeline. The return mechanism (662) includes a bottom plate (6621) and a main tower (6622). The bottom plate (6621) is fixedly connected to the jacket liner (641) and the main tower (6622). The oil separator (664) is provided with a first one-way valve hole (6641) and a second through hole (6642). The bottom plate (6621) is provided with a second one-way valve hole (6641). 6211) and a third through hole (66212), the second through hole (6642) and the third through hole (66212) are fixedly connected to the drainage pipe (661), the oil separator (664) is fixedly connected to the jacket liner (641) and the main tower (6622), the first one-way valve hole (6641) and the second one-way valve hole (66211) are provided in a plurality of groups, the plurality of groups of the first one-way valve holes (6641) are evenly distributed along the circumference of the oil separator (664), and the plurality of groups of the second one-way valve holes (66211) are evenly distributed along the circumference of the bottom plate (6621).

2. The rapeseed oil refining and deodorizing device with a multi-stage gas purification function according to claim 1, characterized in that: The heating mechanism (64) further comprises a heater (643) and a water cooler (645), wherein the heater (643) and the water cooler (645) are both fixedly connected to the base frame (1), the heater (643) is connected to the first sleeve (642) via a pipe, and the water cooler (645) is connected to the second sleeve (644) via a pipe.

3. The rapeseed oil refining and deodorizing device with a multi-stage gas purification function according to claim 1, characterized in that: The steam injection mechanism (65) further comprises a side frame (651), a servo cylinder (653), a first gear (654), a turntable mechanism (655) and an injection gun (658), wherein the side frame (651) is fixedly connected to the tank body (61) and the servo motor (652), the output end of the servo motor (652) is fixedly connected to the servo cylinder (653), the output end of the servo cylinder (653) is fixedly connected to the first gear (654), and the turntable The mechanism (655) includes a ring frame (6551) and a ring platform (6552). The ring frame (6551) is provided with a ring gear pair (65512). The first gear (654) is in contact with the ring gear pair (65512). The ring platform (6552) is provided with a side ring gear groove (65521). The side ring gear groove (65521) is engaged with the tooth surface of the first gear (654). The air jet gun (658) is connected to the air delivery pipe (659) through a pipeline.

4. The rapeseed oil refining and deodorizing device with a multi-stage gas purification function according to claim 3, characterized in that: The steam injection mechanism (65) further includes an inclination plate (656) and an assembly frame (657). The turntable mechanism (655) further includes a gear rod (6553) and a bevel gear (6554). The ring frame (6551) is further provided with a first through hole (65511). The inclination plate (656), the assembly frame (657), the gear rod (6553), the bevel gear (6554), and the first through hole (65511) are provided in a plurality of groups. The plurality of groups of the inclination plate (656), the assembly frame (657), the gear rod (6553), the bevel gear (6554), and the first through hole (65511) are uniformly distributed along the circumference of the ring platform (6552). The ring frame (6551) is rotatably connected to the tank body (61). The ring platform (6552) contacts the ring frame (6551), the ring platform (6552) is further provided with an upper ring tooth groove (65522), the gear rod (6553) is meshed with the tooth surface of the upper ring tooth groove (65522), the gear rod (6553) is rotatably connected to the first through hole (65511), the gear rod (6553) is fixedly connected to the bevel gear (6554), the inclination plate (656) is provided with a bevel gear ring (6561), the bevel gear (6554) is meshed with the tooth surface of the bevel gear ring (6561), the inclination plate (656) is rotatably connected to the assembly frame (657), the assembly frame (657) is fixedly connected to the ring frame (6551), and the inclination plate (656) is fixedly connected to the jet gun (658).

5. The rapeseed oil refining and deodorizing device with a multi-stage gas purification function according to claim 1, characterized in that: The reflux mechanism (662) further comprises a sealing pin (6623) and a first shell cover (6624), wherein the sealing pin (6623) and the first shell cover (6624) are both fixedly connected to the main tower (6622), and the main tower (6622) is provided with an inner sealing ring (66221). The oil circulation mechanism (66) further comprises an oil outlet mechanism (663), wherein the oil outlet mechanism (663) comprises a ball valve stem (6631) and a spring (663). 2), the ball valve stem (6631) is provided with a valve core cavity (66311) and an oil outlet hole (66312), the ball valve stem (6631) is slidably connected to the main tower (6622), the spring (6632) is fixedly connected to the ball valve stem (6631) and the main tower (6622), the valve core cavity (66311) is in contact with the sealing pin (6623), and the oil outlet hole (66312) is in contact with the inner sealing ring (66221).

6. The rapeseed oil refining and deodorizing device with a multi-stage gas purification function according to claim 5, characterized in that: The oil outlet mechanism (663) further includes a second shell cover (6633), the second shell cover (6633) is fixedly connected to the ball valve stem (6631), and the second shell cover (6633) is provided with an arc hole (66331), and the arc hole (66331) is provided in a plurality of groups, and the plurality of groups of arc holes (66331) are evenly distributed in an array along the circumference of the arc surface of the second shell cover (6633).

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