Biodiesel dehydration refining device and method

Abstract

The invention relates to the technical field of biodiesel processing, in particular to a biodiesel water removal refining device and method.The biodiesel water removal refining device comprises a water removal tank internally provided with a cavity, the top of the water removal tank is fixedly connected with a salt storage shell, and one side of the water removal tank is fixedly connected with an oil inlet pipe allowing biodiesel to enter the water removal tank; a sleeve shell communicating with the salt storage shell is fixedly connected to the interior of the oil inlet pipe, a pipe rod is rotationally connected to the interior of the sleeve shell, a fixed four-blade frame is fixedly connected to the interior of the salt storage shell, and four rotating blades matched with the fixed four-blade frame are arranged above the fixed four-blade frame; a driving assembly for driving the rotating four-blade and the fixed four-blade frame to be staggered is arranged on the outer surface of the pipe rod, an inner treatment tank is fixedly connected to the interior of the water removal tank, the bottom of the inner treatment tank is communicated with a water drainage pipe, and an oil drainage pipe is arranged in the inner treatment tank. And the discharging efficiency and the material taking efficiency can be effectively improved through cooperation of the water discharging pipe and the oil discharging pipe.

Description

Technical Field

[0001] The invention relates to the technical field of biodiesel processing, in particular to a biodiesel water removal and refining device and method. Background Art

[0002] Biodiesel is extracted from plant oil and is commonly used in tractors, trucks, ships, etc. It refers to a renewable diesel fuel that can replace petrochemical diesel, which is made from oil crops such as soybeans, rapeseed, cotton, palm, wild oil plants and engineered microalgae and other aquatic plant oils, as well as animal fats, restaurant waste oil, etc. through ester exchange or thermochemical processes. Biodiesel is a kind of biomass energy, which is similar to petrochemical diesel in physical properties, but different in chemical composition. Biodiesel is a mixture of complex organic components with extremely high oxygen content. These mixtures are mainly some organic substances with large molecular weight, including almost all kinds of oxygen-containing organic substances, such as esters, ethers, aldehydes, ketones, phenols, organic acids, alcohols, etc. Composite biodiesel is made from discarded animal and vegetable oils, waste engine oils and by-products of refineries, and then added with catalysts, and synthesized by special equipment and special processes.

[0003] For example, the patent application with the prior art announcement number CN216688042U relates to the field of biodiesel technology, specifically a continuous dewatering device for biodiesel processing, including a mixing tank connected to a bottom box, and a limit tube is provided inside the mixing tank. When using the continuous dewatering device for biodiesel processing, personnel can inject biodiesel and salt into the mixing tank, and start the servo motor at the same time, so that the servo motor drives the rotating barrel and the annular friction tube to rotate, so that the annular friction tube rubs the salt, so that the salt and biodiesel are fused to a certain extent, and then enter the rotating barrel, and accelerate the fusion of biological salt and water in biodiesel under the action of centrifugation. After a certain degree, the liquid in the mixing tank is injected into the retention chamber. When salt remains in the retention chamber, the liquid pump is turned on to repeat the above operation until the fusion is completed, and then the personnel can discharge the salt water and biodiesel through the water outlet pipe and the oil outlet pipe.

[0004] The above-mentioned prior art accelerates the fusion of salt and biodiesel by setting a rotating barrel and an annular friction tube to rotate. However, in actual use, the salt and biodiesel are poured into the mixing tank at the same time. Due to the limitations of instantaneous mixing and the natural effect of gravity, the salt tends to precipitate rapidly at the bottom of the mixing tank to form a local high concentration area. This uneven initial distribution causes the salt to be discharged through the through hole first during the rotation process, and cannot be fully and evenly mixed with the biodiesel. To this end, the present application proposes a biodiesel dewatering and refining device and method. Summary of the invention

[0005] The object of the present invention is to provide a biodiesel water removal and refining device and method to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a biodiesel dewatering and refining device, comprising a dewatering tank with a cavity therein, the top of the dewatering tank is fixedly connected to a salt storage shell, one side of the dewatering tank is fixedly connected to an oil inlet pipe for biodiesel to enter the dewatering tank, the inside of the oil inlet pipe is fixedly connected to a casing that is interconnected with the salt storage shell, and the inside of the casing is rotatably connected to a pipe rod, the inside of the salt storage shell is fixedly connected to a fixed four-leaf rack, the top of the fixed four-leaf rack is provided with a rotating four-leaf rack adapted thereto, the outer surface of the pipe rod is provided with a driving component that drives the rotating four-leaf rack to be displaced with the fixed four-leaf rack, the inside of the dewatering tank is fixedly connected to an internal treatment tank, the bottom of the internal treatment tank is connected to a drain pipe, the inside of the internal treatment tank is provided with an oil drain pipe, the outer surface of the pipe rod is provided with a connecting shell that is connected thereto, and the inside of the connecting shell is provided with a discharge component.

[0007] Preferably, the driving assembly includes a plurality of limit grooves opened on the outer surface of the pipe rod, and the interiors of the plurality of limit grooves are slidably connected with a resistance slider, the rotating four-blade is sleeved on the outer surface of the pipe rod and fixedly connected with a plurality of resistance blocks that can resist the resistance slider, and the outer surface of the pipe rod located inside the casing is fixedly connected with a plurality of water turbine blades.

[0008] Preferably, a plurality of slide grooves are evenly opened on the top of the fixed four-leaf frame, and the bottoms of the rotating four-leaf frames are fixedly connected with connecting blocks slidably connected in the slide grooves, and reset springs for resetting the connecting blocks are fixedly connected in the plurality of slide grooves.

[0009] Preferably, a return spring for returning the resisting slider to a predetermined position is fixedly connected inside the plurality of limit grooves, a gravity ball is slidably connected inside the plurality of resisting sliders, and one side of the plurality of resisting sliders is constructed as an inclined surface.

[0010] Preferably, one end of the oil drain pipe extending into the inner treatment tank is fixedly connected to a telescopic hose, the end of the telescopic hose away from the oil drain pipe is fixedly connected to a floating ball, and the outer surface of the floating ball is fixedly connected to a connecting ring, a guide groove for sliding connection of the connecting ring is provided on one side of the inner treatment tank, and valves are installed on the outer surfaces of the oil drain pipe and the drain pipe.

[0011] Preferably, the outer surfaces of the tube rods are fixedly connected with and communicated with a plurality of connecting rods, the plurality of connecting rods are fixedly connected to the connecting shell, and the outer surfaces of the connecting rods are fixedly connected with stirring blades.

[0012] Preferably, the discharge assembly includes a drain port opened at the bottom of one side of the connecting shell, a drain block is slidably connected in the drain port, both ends of the drain block are fixedly connected with tension springs, and one end of the tension spring away from the drain block is fixedly connected to the connecting shell, and an interference groove is opened on the side of the drain block close to the connecting shell.

[0013] Preferably, a rotating rod is rotatably connected inside the connecting shell, and a cam capable of interfering with the interfering groove is fixedly connected to the outer surface of the rotating rod.

[0014] Preferably, both ends of the rotating rod extend to the outer surface of the connecting shell and are respectively fixedly connected with vortex vanes.

[0015] The present invention also provides a biodiesel dewatering and refining method, comprising the following steps:

[0016] S1. When in use, the biodiesel to be treated is first poured into the inner treatment tank through the oil inlet pipe. When the fluid passes through the casing, it will drive the driving assembly to start and make the pipe rod rotate. At this time, the rotation of the pipe rod will generate centrifugal force to engage with the rotating four blades and drive them to rotate. When the rotating four blades and the fixed four-blade frame are misaligned, the salt in the salt storage shell will fall into the inner part of the casing, so that the salt and biodiesel are mixed and finally discharged into the inner treatment tank;

[0017] S2. When the pipe rod rotates, it drives the connecting shell to rotate with it, further mixing the salt and biodiesel to ensure that the salt water is evenly distributed in the biodiesel;

[0018] S3, when the connecting shell rotates, it will drive the discharge assembly to start, so that the alkaline fluid inside the pipe rod is discharged through the connecting shell into the biodiesel in the internal processing tank for mixing. When the alkaline fluid and the biodiesel are mixed with each other, they react with free fatty acids to generate fatty acid salts and water;

[0019] S4. Finally, after sedimentation, the brine will form a layer with the biodiesel. The valves on the oil drain pipe and the drain pipe can be opened at the same time, so that the brine at the bottom of the internal treatment tank will be discharged through the drain pipe, and at the same time, the biodiesel at the top of the internal treatment tank will be discharged from the oil drain pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The rotating four-blade realizes automatic rotation and reset when the pipe rod rotates through the ingenious design of the gravity ball and the resistance slider. This mechanism not only ensures the full mixing of salt and biodiesel, but also realizes the precise control of the rotating four-blade and the resistance slider through the action of the reset reed and the reset spring, avoiding over-rotation or jamming. The existence of the reset reed and the reset spring enables the rotating four-blade and the resistance slider to reset quickly after each rotation, preparing for the next mixing operation. The combination of the floating ball and the telescopic hose realizes the automatic absorption and discharge of biodiesel. As the water level drops, the floating ball drives the telescopic hose to contract, thereby accelerating the discharge speed of biodiesel. The cooperation of the connecting ring and the guide groove ensures the stability of the floating ball during movement.

[0022] 2. The design of the discharge component allows the alkaline fluid stored in the tube rod to be automatically released while stirring the biodiesel. This automatic mixing mechanism ensures that the alkaline fluid and biodiesel are fully contacted and reacted, thereby effectively removing free fatty acids in biodiesel and generating fatty acid salts and water. The design of connecting the through rod and the stirring blade further enhances the mixing effect of biodiesel with salt and alkaline fluid. As the tube rod rotates, the stirring blade quickly stirs the biodiesel, so that the salt water and alkaline fluid can be more evenly distributed in the biodiesel. The cooperation of the vortex blade with the rotating rod, the cam and the drainage block realizes the intelligent control of the discharge of the alkaline fluid. The rotational force generated by the vortex blade in the flow of biodiesel drives the rotating rod to rotate, and then controls the switch of the drainage block through the interaction between the cam and the friction groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the present invention without the water removal tank;

[0026] Figure 4 It is a schematic diagram of the cross-sectional structure of the internal treatment tank in the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the pipe rod in the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the pipe rod and the oil inlet pipe in the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the water turbine blade in the present invention;

[0030] Figure 8 It is a schematic diagram of the explosion structure of the pipe rod and the rotating four blades in the present invention;

[0031] Fig. 9 It is a schematic diagram of the cross-sectional structure of the rotating four blades in the present invention;

[0032] Fig.10 For the present invention Fig.10 A schematic diagram of the structure enlargement in the middle;

[0033] Fig.11 It is a structural schematic diagram of the connecting shell in the present invention;

[0034] Fig.12 It is a schematic diagram of the cross-sectional structure of the connecting shell in the present invention;

[0035] Fig.13 It is a schematic diagram of the local structure of the connecting shell in the present invention;

[0036] Fig.14 For the present invention Fig.13 Enlarged schematic diagram of the structure at point B in the middle.

[0037] In the figure: 100, dewatering tank; 101, oil inlet pipe; 102, oil discharge pipe; 103, drain pipe; 104, internal treatment tank; 105, telescopic hose; 106, floating ball; 107, guide groove; 108, connecting ring; 200, salt storage shell; 201, sleeve shell; 202, pipe rod; 203, water turbine blade; 204, fixed four-blade frame; 205, reset spring; 206, connecting block; 207, rotating four-blade; 208, resistance block; 209, resistance slider; 210, reset spring; 211, limit groove; 212, gravity ball; 300, connecting shell; 301, connecting rod; 302, rotating rod; 303, vortex blade; 304, stirring blade; 400, drainage block; 401, tension spring; 402, cam; 403, resistance groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1 , Figure 2 as well as Figure 8The present invention provides a technical solution: a biodiesel dewatering and refining device, comprising a dewatering tank 100 with a cavity therein, a salt storage shell 200 is fixedly connected to the top of the dewatering tank 100, the interior of the salt storage shell 200 is used to store salt material, an oil inlet pipe 101 for biodiesel to enter the dewatering tank 100 is fixedly connected to one side of the dewatering tank 100, a casing 201 which is interconnected with the salt storage shell 200 is fixedly connected to the interior of the oil inlet pipe 101, wherein the casing 201 is interconnected with the salt storage shell 200, and a pipe rod 202 is rotatably connected to the interior of the casing 201, a fixed four-leaf frame 204 is fixedly connected to the interior of the salt storage shell 200, and a fixed A rotating four-blade 207 adapted to the four-blade frame 204 is arranged above the four-blade frame 204. The initial state of the fixed four-blade frame 204 and the rotating four-blade 207 is staggered, thereby blocking the salt storage shell 200 and preventing the salt in the salt storage shell 200 from entering the casing 201. The outer surface of the pipe rod 202 is provided with a driving component that drives the rotating four-blade 207 and the fixed four-blade frame 204 to be misaligned. By setting the driving component, a certain overlap can be generated between the rotating four-blade 207 and the fixed four-blade frame 204, thereby opening the channel of the salt storage shell 200, so that the salt in the salt storage shell 200 can enter the casing 201, and a feed port is opened on the top of the salt storage shell 200.

[0040] For further information, see Figure 5 , Figure 6 as well as Figure 7In order to facilitate driving the pipe rod 202 to rotate and drive the rotating four-blade 207 to rotate, and at the same time, in order to make the rotating four-blade 207 reset when the pipe rod 202 is stationary and cooperate with the fixed four-blade frame 204 to block the salt material in the salt storage shell 200, the driving component includes a plurality of limiting grooves 211 opened on the outer surface of the pipe rod 202, and the interiors of the plurality of limiting grooves 211 are slidably connected with a resistance slider 209, the rotating four-blade 207 is sleeved on the outer surface of the pipe rod 202 and fixedly connected with a plurality of resistance blocks 208 that can resist the resistance slider 209, and the outer surface of the pipe rod 202 located inside the casing 201 is fixedly connected with a plurality of water turbine blades 203, the top of the fixed four-blade frame 204 is evenly provided with a plurality of slide grooves, and the bottom of the rotating four-blade 207 is fixedly connected with a connection block slidably connected to the slide groove 206. When the biodiesel passes through the casing 201, it will collide with the water turbine blade 203 to drive the pipe rod 202 to rotate, so that the pipe rod 202 rotates to form a centrifugal force and the conflicting slider 209 slides in the limiting groove 211, so as to be displayed on the outer surface of the pipe rod 202, thereby contacting the conflicting block 208 and driving the rotating four-blade 207 to rotate, and the fixed four-blade frame 204 is fixed inside the pipe rod 202, so that the rotating four-blade 207 and the fixed four-blade frame 204 gradually overlap to allow the salt material in the salt storage shell 200 to enter the casing 201 and mix with the biodiesel. At the same time, under the action of the water turbine blade 203, the biodiesel can be continuously mixed with the salt material, thereby improving the uniformity of the mixing, and the amount of biodiesel in the casing 201 can be used to release the appropriate salt material.

[0041] Among them, see Figure 8 , Fig. 9 as well as Fig.10 In order to facilitate the resetting of the rotating four-blade 207, a plurality of slide grooves are fixedly connected with a resetting spring 205 for resetting the connecting block 206, and a plurality of limiting grooves 211 are fixedly connected with a resetting spring 210 for resetting the contact slider 209. A plurality of contact sliders 209 are slidably connected with a gravity ball 212, and one side of the plurality of contact sliders 209 is constructed as an inclined surface. When the contact slider 209 contacts the contact block 208, the rotating four-blade 207 will be driven to rotate. At this time, the rotating four-blade 207 will continuously drive the connecting block 206 to apply pressure on the resetting spring 205, and at the same time, the inclined surface of the contact slider 209 will contact the contact block 208. Under the influence of the interaction force, the contact slider 209 will pass over the contact block 208, so that the pipe rod 202 rotates continuously and can only drive the rotating four-blade 207 to move a certain distance and then limit and fix it.

[0042] For further information, see Figure 2 , Figure 3 as well as Figure 4After the biodiesel is dehydrated, the brine and biodiesel need to be taken out. In order to improve the efficiency of taking materials, the interior of the dewatering tank 100 is fixedly connected to the inner processing tank 104, and the bottom of the inner processing tank 104 is connected to the drain pipe 103. The interior of the inner processing tank 104 is provided with an oil drain pipe 102. The end of the oil drain pipe 102 extending into the inner processing tank 104 is fixedly connected to a telescopic hose 105, and the end of the telescopic hose 105 away from the oil drain pipe 102 is fixedly connected to a floating ball 106, and the outer surface of the floating ball 106 is fixedly connected to a connecting ring 108. A guide groove 107 for the connecting ring 108 to slide and connect is provided on one side of the inner processing tank 104. Valves are installed on the outer surfaces of the pipe 102 and the drain pipe 103, wherein the floating ball 106 has buoyancy and is always on the top surface of the biodiesel. At the same time, the top of the telescopic hose 105 can absorb the biodiesel, so that when discharge is required, the valves on the oil drain pipe 102 and the drain pipe 103 are opened at the same time, so that the brine at the bottom of the internal treatment tank 104 is discharged through the drain pipe 103, and the biodiesel will be discharged through the telescopic hose 105. The cooperation of the connecting ring 108 and the guide groove 107 limits the floating ball 106, so that it is not disturbed and continues to absorb biodiesel. The telescopic hose 105 is retractable and can effectively control the floating ball 106 to be located at different heights.

[0043] Specifically, the biodiesel to be treated is poured into the interior of the inner treatment tank 104 through the oil inlet pipe 101. When the fluid passes through the casing 201, it will collide with the multiple water turbine blades 203, thereby driving the pipe rod 202 to rotate. At this time, the rotation of the pipe rod 202 will generate centrifugal force to drive the gravity ball 212 to move, thereby pushing the interference slider 209 to protrude from the outer surface of the pipe rod 202 and collide with the interference block 208, thereby driving the rotating four-blade 207 to rotate. When the rotating four-blade 207 rotates, it will drive the connecting block 206 to slide on the slide groove on the top surface of the fixed four-blade frame 204, thereby compressing the reset spring 205. When the interference slider 209 continues to move, it will pass over the interference block 208 to drive the rotating four-blade 207 to reset. When misalignment occurs between 207 and the fixed four-leaf frame 204, the salt in the salt storage shell 200 will fall into the interior of the casing 201, causing the salt to mix with the biodiesel and eventually be discharged into the interior of the internal treatment tank 104. After sedimentation, the brine will form a layer with the biodiesel, and the valves on the oil drain pipe 102 and the drain pipe 103 can be opened at the same time, so that the brine at the bottom of the internal treatment tank 104 can be discharged through the drain pipe 103, and at the same time, the biodiesel at the top of the internal treatment tank 104 will be discharged from the oil drain pipe 102. As the water level gradually drops, the floating ball 106 will gradually move downward and drive the connecting ring 108 to slide in the guide groove 107, thereby contracting the telescopic hose 105, thereby accelerating the discharge of the fluid in the internal treatment tank 104.

[0044] In summary, the rotating four-blade 207 realizes automatic rotation and reset when the pipe rod 202 rotates through the ingenious design of the gravity ball 212 and the resistance slider 209. This mechanism not only ensures the full mixing of salt and biodiesel, but also realizes the precise control of the rotating four-blade 207 and the resistance slider 209 through the action of the reset reed 205 and the reset spring 210, avoiding the phenomenon of excessive rotation or jamming. The existence of the reset reed 205 and the reset spring 210 enables the rotating four-blade 207 and the resistance slider 209 to quickly reset after each rotation, ready for the next mixing operation. The combination of the floating ball 106 and the telescopic hose 105 realizes the automatic absorption and discharge of biodiesel. As the water level drops, the floating ball 106 drives the telescopic hose 105 to contract, thereby accelerating the discharge speed of biodiesel. The cooperation of the connecting ring 108 and the guide groove 107 ensures the stability of the floating ball 106 during movement.

[0045] Example 2: Please refer to Figure 5 , Figure 6 as well as Fig.11 The present invention also provides a technical solution, which is different from the technical solution of Example 1: a biodiesel dewatering and refining device, the outer surface of the pipe rod 202 is provided with a connecting shell 300 connected thereto, the outer surface of the pipe rod 202 is fixedly connected and connected with multiple connecting rods 301, and the multiple connecting rods 301 are fixedly connected to the connecting shell 300, and the outer surface of the connecting rod 301 is fixedly connected with a stirring blade 304, and the interior of the connecting shell 300 is provided with a discharge component, wherein the interior of the pipe rod 202 is constructed with a cavity, and alkaline objects are stored in the cavity and can be mixed with biodiesel to achieve deacidification, and at the same time, the top of the pipe rod 202 extends to the top of the salt storage shell 200 and is constructed with a feed port, and the discharge component can release the alkaline objects when stirring the biodiesel to accelerate the mixing with the biodiesel.

[0046] For further information, see Fig.12 , Fig.13 as well as Fig.14The discharge assembly includes a discharge port provided at the bottom of one side of the connection shell 300, a discharge block 400 is slidably connected in the discharge port, tension springs 401 are fixedly connected at both ends of the discharge block 400, and one end of the tension spring 401 away from the discharge block 400 is fixedly connected to the connection shell 300, a resistance groove 403 is provided on the side of the discharge block 400 close to the connection shell 300, a rotating rod 302 is rotatably connected inside the connection shell 300, a cam 402 that can resist the resistance groove 403 is fixedly connected to the outer surface of the rotating rod 302, and the rotating rod 30 The two ends of the pipe 202 extend to the outer surface of the connecting shell 300 and are fixedly connected with vortex vanes 303 respectively. The vortex vanes 303 can further improve the mixing efficiency with biodiesel. When the vortex vanes 303 collide with the biodiesel, a certain rotational force is generated. The rotational force drives the rotating rod 302 to rotate and drives the drain block 400 to dislocate, so that the alkaline objects in the connecting shell 300 are discharged through the drain port of the connecting shell 300. At the same time, the alkaline objects in the pipe rod 202 will continuously enter the connecting shell 300 under the influence of gravity to fill it.

[0047] Specifically, when the pipe rod 202 rotates, it will drive multiple connecting rods 301 and the connecting shell 300 to rotate together with it. When the connecting rod 301 rotates, it will drive the stirring blades 304 to stir and further mix the salt and biodiesel, ensuring that the salt water is evenly distributed in the biodiesel. At the same time, when the connecting shell 300 rotates, it will drive the vortex blades 303 to conflict with the fluid, thereby driving the rotating rod 302 to rotate. When the rotating rod 302 rotates, it will drive the cam 402 to rotate, thereby continuously conflicting with the conflicting groove 403, so that the drain block 400 moves away from the connecting shell 300, thereby opening the channel of the connecting shell 300, so that the alkaline fluid inside the pipe rod 202 is discharged through the connecting shell 300 into the biodiesel in the internal processing tank 104 for mixing. When the alkaline fluid and biodiesel are mixed with each other, it reacts with free fatty acids to generate fatty acid salts and water.

[0048] In summary, the design of the discharge assembly allows the alkaline fluid stored in the pipe rod 202 to be automatically released while stirring the biodiesel. This automatic mixing mechanism ensures that the alkaline fluid and the biodiesel are fully contacted and reacted, thereby effectively removing the free fatty acids in the biodiesel and generating fatty acid salts and water. The design of connecting the through rod 301 and the stirring blade 304 further enhances the mixing effect of the biodiesel with the salt and alkaline fluid. As the pipe rod 202 rotates, the stirring blade 304 quickly stirs the biodiesel, so that the salt water and the alkaline fluid can be more evenly distributed in the biodiesel. The cooperation of the vortex blade 303 with the rotating rod 302, the cam 402 and the drainage block 400 realizes the intelligent control of the discharge of the alkaline fluid. The rotational force generated by the vortex blade 303 in the flow of biodiesel drives the rotating rod 302 to rotate, and then controls the switch of the drainage block 400 through the interaction between the cam 402 and the resistance groove 403.

[0049] Example 3: Please refer to Figures 1 to 14 The present invention also provides a technical solution, which is different from the technical solution of embodiment 2: a biodiesel dewatering and refining method, comprising the following steps:

[0050] S1. When in use, the biodiesel to be treated is first poured into the interior of the inner treatment tank 104 through the oil inlet pipe 101. When the fluid passes through the casing 201, it will collide with the multiple water turbine blades 203, thereby driving the pipe rod 202 to rotate. At this time, the rotation of the pipe rod 202 will generate centrifugal force to drive the gravity ball 212 to move, thereby pushing the conflict slider 209 to protrude from the outer surface of the pipe rod 202 and conflict with the conflict block 208, thereby driving the rotating four-blade 207 to rotate. When the rotating four-blade 207 rotates, it will drive the connecting block 206 to slide on the slide groove on the top surface of the fixed four-blade frame 204, thereby compressing the reset spring 205. When the conflict slider 209 continues to move, it will pass over the conflict block 208 to drive the rotating four-blade 207 to reset. When the rotating four-blade 207 and the fixed four-blade frame 204 are misaligned, the salt in the salt storage shell 200 will fall into the interior of the casing 201, so that the salt is mixed with the biodiesel and finally discharged into the interior of the inner treatment tank 104;

[0051] S2. When the tube rod 202 rotates, it will drive the multiple connecting rods 301 and the connecting shell 300 to rotate together. When the connecting rod 301 rotates, it will drive the stirring blades 304 to stir and further mix the salt and biodiesel to ensure that the salt water is evenly distributed in the biodiesel.

[0052] S3, when the connecting shell 300 rotates, the vortex sheet 303 will be driven to collide with the fluid, thereby driving the rotating rod 302 to rotate, and when the rotating rod 302 rotates, the cam 402 will be driven to rotate, thereby continuously collide with the conflicting groove 403, so that the drain block 400 moves away from the connecting shell 300, thereby opening the channel of the connecting shell 300, so that the alkaline fluid inside the pipe rod 202 is discharged through the connecting shell 300 to the biodiesel in the internal processing tank 104 for mixing, and when the alkaline fluid and the biodiesel are mixed with each other, it reacts with free fatty acids to generate fatty acid salts and water;

[0053] S4. Finally, after sedimentation, the salt water will form layers with the biodiesel. The valves on the oil drain pipe 102 and the drain pipe 103 can be opened at the same time, so that the salt water at the bottom of the internal treatment tank 104 can be discharged through the drain pipe 103. At the same time, the biodiesel at the top of the internal treatment tank 104 will be discharged from the oil drain pipe 102. As the water level gradually drops, the floating ball 106 will gradually move downward and drive the connecting ring 108 to slide in the guide groove 107, thereby contracting the telescopic hose 105, thereby accelerating the discharge of the fluid in the internal treatment tank 104.

[0054] In summary, when biodiesel flows through the casing 201, the water turbine blades 203 are driven to rotate, thereby driving the pipe rod 202 to rotate. This design realizes the conversion of fluid power into mechanical energy without the need for an external power source, thereby improving the self-sufficiency of the system. The cooperation between the gravity ball 212 and the rotating four-blade 207 enables the centrifugal force generated by the rotation of the pipe rod 202 to move the gravity ball 212, pushing the resistance slider 209 to contact the resistance block 208, thereby driving the rotating four-blade 207 to rotate. This process not only mixes the salt and biodiesel, but also periodically releases the salt through the reset mechanism of the rotating four-blade 207 to ensure the uniformity of the mixing. The connecting rod 301 rotates with the pipe rod 202, driving the stirring blade 304 to stir in the biodiesel, further enhancing the mixing effect of the salt and biodiesel, so that the salt water can be more evenly distributed in the biodiesel.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biodiesel dewatering and refining device, comprising a dewatering tank (100) having a cavity therein, characterized in that: The top of the dewatering tank (100) is fixedly connected to a salt storage shell (200), one side of the dewatering tank (100) is fixedly connected to an oil inlet pipe (101) for biodiesel to enter the dewatering tank (100), the inside of the oil inlet pipe (101) is fixedly connected to a casing (201) that is interconnected with the salt storage shell (200), and the inside of the casing (201) is rotatably connected to a pipe rod (202), the inside of the salt storage shell (200) is fixedly connected to a fixed four-leaf frame (204), and a rotating shaft (202) adapted to the fixed four-leaf frame (204) is arranged above the fixed four-leaf frame (204). The pipe rod (202) has four rotating blades (207), and the outer surface of the pipe rod (202) is provided with a driving component that drives the rotating four blades (207) to be offset from the fixed four-blade frame (204). The interior of the dewatering tank (100) is fixedly connected to an internal treatment tank (104), the bottom of the internal treatment tank (104) is connected to a drainage pipe (103), and the interior of the internal treatment tank (104) is provided with an oil drainage pipe (102). The outer surface of the pipe rod (202) is provided with a connecting shell (300) that is connected thereto, and the interior of the connecting shell (300) is provided with a discharge component.

2. A biodiesel dewatering and refining device according to claim 1, characterized in that: The driving assembly comprises a plurality of limit grooves (211) formed on the outer surface of the pipe rod (202), the interiors of the plurality of limit grooves (211) are all slidably connected with a resistance slider (209), the four rotating blades (207) are sleeved on the outer surface of the pipe rod (202) and are fixedly connected with a plurality of resistance blocks (208) capable of resisting the resistance slider (209), and the outer surface of the pipe rod (202) located inside the casing (201) is fixedly connected with a plurality of water turbine blades (203).

3. A biodiesel dewatering and refining device according to claim 2, characterized in that: The top of the fixed four-leaf frame (204) is evenly provided with a plurality of slide grooves, and the bottom of the rotating four-leaf frame (207) is fixedly connected with a connecting block (206) slidably connected in the slide groove, and a plurality of the slide grooves are fixedly connected with a reset spring (205) for resetting the connecting block (206).

4. A biodiesel dewatering and refining device according to claim 2, characterized in that: A return spring (210) for returning the resisting slider (209) is fixedly connected inside the plurality of limit grooves (211), a gravity ball (212) is slidably connected inside the plurality of resisting sliders (209), and one side of the plurality of resisting sliders (209) is constructed as an inclined surface.

5. A biodiesel dewatering and refining device according to claim 1, characterized in that: One end of the oil discharge pipe (102) extending into the inner treatment tank (104) is fixedly connected to a telescopic hose (105), one end of the telescopic hose (105) away from the oil discharge pipe (102) is fixedly connected to a floating ball (106), and the outer surface of the floating ball (106) is fixedly connected to a connecting ring (108), one side of the inner treatment tank (104) is provided with a guide groove (107) for the connecting ring (108) to be slidably connected, and valves are installed on the outer surfaces of the oil discharge pipe (102) and the drain pipe (103).

6. A biodiesel dewatering and refining device according to claim 1, characterized in that: The outer surfaces of the tube rods (202) are fixedly connected to and communicate with a plurality of connecting rods (301), the plurality of connecting rods (301) are fixedly connected to the connecting shell (300), and the outer surfaces of the connecting rods (301) are fixedly connected to stirring blades (304).

7. A biodiesel dewatering and refining device according to claim 6, characterized in that: The discharge assembly comprises a drain port provided at the bottom of one side of the connection shell (300), a drain block (400) being slidably connected in the drain port, tension springs (401) being fixedly connected at both ends of the drain block (400), and an end of the tension spring (401) away from the drain block (400) being fixedly connected to the connection shell (300), and a resistance groove (403) being provided on a side of the drain block (400) close to the connection shell (300).

8. A biodiesel dewatering and refining device according to claim 7, characterized in that: The interior of the connecting shell (300) is rotatably connected to a rotating rod (302), and the outer surface of the rotating rod (302) is fixedly connected to a cam (403) that can abut against the abutment groove (403).

9. A biodiesel dewatering and refining device according to claim 8, characterized in that: Both ends of the rotating rod (302) extend to the outer surface of the connecting shell (300) and are respectively fixedly connected to vortex vanes (303).

10. A method for dewatering and refining biodiesel, according to a biodiesel dewatering and refining device according to any one of claims 1 to 9, characterized in that: S1. When in use, the biodiesel to be treated is first poured into the interior of the inner treatment tank (104) through the oil inlet pipe (101). When the fluid passes through the casing (201), the driving assembly is driven to start, causing the pipe rod (202) to rotate. At this time, the rotation of the pipe rod (202) will generate centrifugal force, which will engage with the rotating four blades (207) and drive them to rotate. When the rotating four blades (207) and the fixed four-blade frame (204) are misaligned, the salt in the salt storage shell (200) will fall into the interior of the casing (201), so that the salt is mixed with the biodiesel and finally discharged into the interior of the inner treatment tank (104); S2. When the pipe rod (202) rotates, the connecting shell (300) will be driven to rotate along with it, thereby further mixing the salt and the biodiesel, ensuring that the salt water is evenly distributed in the biodiesel; S3, when the connecting shell (300) rotates, it drives the discharge assembly to start, so that the alkaline fluid inside the pipe rod (202) is discharged through the connecting shell (300) into the biodiesel in the internal processing tank (104) for mixing. When the alkaline fluid and the biodiesel are mixed with each other, they react with free fatty acids to generate fatty acid salts and water; S4. Finally, after sedimentation, the salt water and the biodiesel will form layers, and the valves on the oil drain pipe (102) and the drain pipe (103) can be opened at the same time, so that the salt water at the bottom of the internal treatment tank (104) is discharged through the drain pipe (103), and at the same time, the biodiesel at the top of the internal treatment tank (104) is discharged from the oil drain pipe (102).

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