Mixing equipment for biodiesel processing and mixing process thereof

Abstract

The invention relates to the technical field of biodiesel processing, and particularly discloses mixing equipment for biodiesel processing and a mixing technology.The mixing equipment comprises a tank body, a driving shaft, a stirring mechanism, a cleaning mechanism and an adjusting mechanism, the stirring mechanism comprises a plurality of stirring assemblies, and each stirring assembly comprises a cross sleeve and two stirring rods; the cross-shaped sleeves in the multiple stirring assemblies sequentially sleeve the outer side of the driving shaft in the axial direction of the driving shaft, the two stirring rods are symmetrically arranged on the cross-shaped sleeves in the radial direction of the tank body, each stirring rod is hollow, filtering holes are densely distributed in the circumferential side of each stirring rod, and the multiple sets of cleaning mechanisms are arranged and correspond to the multiple stirring assemblies respectively. The cleaning device is used for cleaning the peripheral side of the stirring rod; the stirring mechanism is arranged, when the stirring mechanism is in the first state, materials in the tank body can be filtered, and after filtering is completed, the stirring mechanism can be driven by the adjusting mechanism to be switched to the second state, and the materials in the tank body are stirred.

Description

Technical Field

[0001] The invention relates to the technical field of biodiesel processing, and in particular to mixing equipment for biodiesel processing and a mixing process thereof. Background Art

[0002] Biodiesel is a renewable energy fuel. Its main component is a liquid fuel obtained through ester exchange reaction of raw materials such as oils, vegetable oils, and bio-esters. The raw materials of biodiesel mainly include rapeseed, soybean, palm oil, flaxseed, sunflower seeds and other seed plants' oil seeds, waste cooking oil, animal fats, waste oils, etc. Mixing different raw materials can adjust the physical and chemical properties and performance of the fuel, so as to achieve better use effect. Most related technologies use mixing equipment to mix and stir different raw materials of biodiesel.

[0003] The patent document with publication number CN221108117U provides a biodiesel raw material mixer, including a mixing barrel, the inner wall of the mixing barrel is provided with a heating wire, the interior of the mixing barrel is provided with a temperature sensor, the exterior of the mixing barrel is provided with a display screen, a connecting pipe is provided below the mixing barrel to connect to a filter barrel, a valve is provided in the connecting pipe, and a filter screen with one end protruding is provided obliquely in the filter barrel. By providing a heating wire, the patent can reduce the viscosity of the raw material and make the mixing efficiency higher. By providing a temperature sensor and a display screen, the temperature inside the mixing barrel can be monitored. By providing a filter screen, impurities in the raw material can be filtered.

[0004] However, the mixer provided in the above patent document only filters the impurities in the raw materials after the mixing is completed, so that during the mixing process, the impurities in the raw materials may affect the progress of the reaction and the quality of the final product. In addition, when the raw materials are stirred with a stirring rod, due to the high viscosity of some biodiesels, it will cause resistance to the rotation of the stirring rod and increase the load of the stirring motor. Summary of the invention

[0005] The present invention provides a mixing device for biodiesel processing and a mixing process thereof, aiming to solve the problem that the mixer in the related art only filters impurities in the raw materials after the mixing is completed, so that during the mixing process, the impurities in the raw materials may affect the progress of the reaction and the quality of the final product. In addition, when the raw materials are stirred with a stirring rod, due to the high viscosity of some biodiesels, resistance will be caused to the rotation of the stirring rod, thereby increasing the load of the stirring motor.

[0006] In a first aspect, a mixing device for biodiesel processing of the present invention comprises a tank body, a drive shaft, and also comprises a stirring mechanism, a cleaning mechanism and a regulating mechanism arranged in the tank body; The stirring mechanism includes a plurality of stirring components, each of which includes a cross sleeve and two stirring rods. The cross sleeves in the plurality of stirring components are sequentially sleeved on the outer side of the driving shaft along the axial direction of the driving shaft, and the two stirring rods are symmetrically arranged on the cross sleeve along the radial direction of the tank body. Each stirring rod is hollow and has filter holes densely distributed on the circumference. The cleaning mechanism is provided in a plurality of groups and is respectively provided corresponding to the plurality of stirring components. Each cleaning mechanism is provided on the corresponding cross sleeve and is used to clean the outer circumference of the stirring rod. The stirring mechanism has two states: in state one, a plurality of stirring components are arranged in an array with equal spacing along the axial direction of the driving shaft, at which time two adjacent groups of cleaning mechanisms are close to each other, and are used to close the channel formed between two adjacent stirring rods; in state two, the stirring mechanism is arranged in a double helix shape, at which time two adjacent groups of cleaning mechanisms are away from each other, so that the channel between the stirring rods is open; The adjustment mechanism is used to drive multiple stirring components to rotate relative to the driving shaft from top to bottom around the axis of the driving shaft, and the rotation angles of the multiple stirring components decrease from top to bottom, so that the stirring mechanism switches between state one and state two.

[0007] When the stirring mechanism is in state one, it can filter the material in the tank body, and after the filtering is completed, the stirring mechanism can be driven to switch to state two through the adjustment mechanism to stir the material in the tank body and reduce the resistance to the rotation of the stirring rod.

[0008] Preferably, the interior of the drive shaft is hollow, the lower end of the drive shaft passes through the bottom of the tank body and is connected to a flange, a plurality of vent holes 1 are provided on the side wall of the drive shaft, each cross sleeve is provided with a vent hole 2, and each end of the stirring rod is provided with a vent hole 3, so that the gas can pass through the drive shaft, the cross sleeve and the stirring rod in sequence, and finally enter the interior of the tank body.

[0009] When the stirring mechanism is in state one, the introduced gas can backwash and clean the filter holes on the stirring rod to avoid clogging of the filter holes and affect the filtering effect. When the stirring mechanism is in state two, the introduced gas can form tiny bubbles in the material, reduce the viscosity between the liquids, and make stirring easier.

[0010] Preferably, an annular cavity through which gas can flow is provided on the cross sleeve, and the second vent hole is connected to the first vent hole through the annular cavity.

[0011] When the cross sleeve rotates relative to the driving shaft, the gas inside the driving shaft can always enter the stirring rod through the annular cavity.

[0012] Preferably, the cleaning mechanism includes two arc plates and a driving structure, the two arc plates are symmetrically arranged on the upper and lower sides of the stirring rod, and the inner arc surfaces of the two arc plates are opposite to each other. A scraper is provided between each arc plate and the stirring rod, one end of the scraper is hinged to the inner arc surface of the arc plate through a torsion spring, and the other end is in contact with the outer peripheral side of the stirring rod. The driving structure is used to drive the two arc plates in the same group of cleaning mechanisms to approach or move away from each other, so that when the stirring mechanism is in state one, the outer arc surfaces of the two arc plates located between two adjacent stirring rods are in contact, and when the stirring mechanism is in state two, the inner arc surfaces of the two arc plates located on the upper and lower sides of the stirring rod are in contact with the outer peripheral side of the stirring rod.

[0013] Preferably, the upper and lower end surfaces of each cross sleeve are provided with a rough structure, the cross sleeve at the bottom is fixedly connected to the drive shaft, and the remaining cross sleeves are movably sleeved on the outside of the drive shaft. The adjustment mechanism includes a driving member, which is arranged on the upper part of the drive shaft, and the output end is connected to the top cross sleeve, which can drive the top cross sleeve to move downward along the axial direction of the drive shaft so that the upper and lower end surfaces of two adjacent cross sleeves are in contact. At this time, the cross sleeve is in a locked state, so that multiple cross sleeves can rotate synchronously with the drive shaft.

[0014] Preferably, a slide groove is provided at the lower end of each cross sleeve, and the slide groove is arranged along the circumference of the lower end of the cross sleeve. A slide rod is provided at the upper end of each cross sleeve, and the slide rod slides with the cross sleeve in the longitudinal direction. The upper end of the slide rod passes through the cross sleeve and extends into the slide groove provided on the upper cross sleeve, slidingly cooperating with the slide groove. The driving member can drive the uppermost cross sleeve to rotate relative to the driving shaft around the axis of the driving shaft.

[0015] Preferably, the driving structure includes connecting rod one, connecting rod two and a contact wheel, connecting rod one is connected to the arc plate located on the upper side, connecting rod two is connected to the arc plate located on the lower side, connecting rod one and connecting rod two are both arranged longitudinally and slidingly cooperate with the cross sleeve, the contact wheel is connected to the end of the stirring rod, and the two sides are respectively in friction contact with connecting rod one and connecting rod two, the lower end of the sliding rod passes through the cross sleeve and is connected to the arc plate located on the upper side, and the interior of the slide groove is in the shape of an inclined surface.

[0016] Preferably, a collecting groove is provided on the inner arc surface of the arc plate located at the lower side, for collecting impurities scraped off by the scraper.

[0017] When the stirring mechanism switches from state one to state two, the stirring rod can rotate on its own under the action of the driving structure, so that the impurities intercepted on the outside of the stirring rod can be scraped off by the scraper and the impurities can be scraped into the collecting tank. When the stirring mechanism is in state two, the scraper fits against the outer peripheral side of the stirring rod, thereby closing the collecting tank and preventing the material from contacting the impurities in the collecting tank during the mixing process.

[0018] Preferably, a liquid level alarm and a plurality of observation windows are provided on the tank body.

[0019] It is helpful to observe the mixing situation in the tank, avoid overflow and leakage, and ensure safe operation.

[0020] In a second aspect, a mixing process for biodiesel processing of the present invention utilizes the above-mentioned mixing equipment for biodiesel processing, and comprises the following steps: S1. Adding materials: Add various raw materials to be mixed into the tank in sequence; S2, filtration: in the initial state, the stirring mechanism is in state 1, at this time, the stirring mechanism is driven to rotate by the driving shaft, and the material can be filtered through the filter holes on the stirring rod, and the impurities in the material are intercepted on the outer peripheral side of the stirring rod; S3, stirring: after the filtering of the material is completed, the stirring mechanism is switched to state 2 through the adjustment mechanism, at which time the stirring mechanism is driven to rotate by the driving shaft, and the material can be stirred by the staggered stirring rods to make the material mixed evenly; S4, cleaning: during the process of the stirring mechanism switching from state 1 to state 2, the cleaning mechanism can clean and collect the intercepted impurities; S5. Discharging: Discharging the mixed materials from the tank.

[0021] When the stirring mechanism is in state one, it can filter the material in the tank body. When the stirring mechanism switches from state one to state two, the cleaning mechanism can clean and collect the intercepted impurities. When the stirring mechanism is in state two, it can stir the material in the tank body.

[0022] The beneficial effects of the present invention are: 1. The present invention is provided with a stirring mechanism, and the stirring mechanism has two states. When in state one, the stirring mechanism can filter the material in the tank body to prevent the impurities in the material from affecting the mixing of the material. When in state two, the stirring mechanism can stir the material in the tank body to make the material mixed evenly, and at the same time can reduce the resistance of the stirring mechanism to rotation, making stirring easier.

[0023] 2. The present invention is provided with an air supply channel, so that the gas can pass through the drive shaft, the cross sleeve and the stirring rod in sequence, and finally enter the interior of the tank body. When the stirring mechanism is in state one, the gas in the air supply channel can recoil and clean the filter holes on the stirring rod to avoid clogging of the filter holes and affecting the filtering effect of the material. When the stirring mechanism is in state two, the gas can form tiny bubbles in the material, reduce the viscosity between the materials, and further reduce the resistance to the rotation of the stirring rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 It is a schematic structural diagram of the present invention cut along the longitudinal direction.

[0026] Figure 3 It is a schematic diagram of the stirring mechanism of the present invention when it is in state one.

[0027] Figure 4 It is a schematic diagram of the stirring mechanism of the present invention when it is in state two.

[0028] Figure 5 It is a schematic diagram of the assembly structure of the stirring component and the cleaning mechanism of the present invention.

[0029] Figure 6 It is a schematic diagram of the assembly structure of two adjacent cross sleeves of the present invention.

[0030] Figure 7 It is a structural schematic diagram of the cross sleeve of the present invention cut along the longitudinal direction.

[0031] Figure 8 It is a structural schematic diagram of the driving structure of the present invention.

[0032] Reference numerals: 1. Tank body; 11. Drive shaft; 12. Flange; 13. Drive motor; 14. Feed inlet; 15. Discharge outlet; 16. Liquid level alarm; 17. Observation window; 21. Cross sleeve; 211. Vent hole 2; 212. Annular cavity; 213. Slide groove; 214. Mounting groove; 22. Stirring rod; 221. Filter hole; 222. Vent hole 3; 23. Driving member; 24. Slide rod; 31. Arc plate; 311. Collecting trough; 32. Scraper; 33. Connecting rod 1; 34. Connecting rod 2; 35. Contact wheel. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 8 As shown, a mixing device for biodiesel processing of the present invention comprises a tank body 1, a driving shaft 11, a stirring mechanism, a cleaning mechanism and a regulating mechanism.

[0035] The drive shaft 11 is arranged inside the tank body 1 and rotates along the axis of the tank body 1. A drive motor 13 for rotating the drive shaft 11 is installed at the upper end of the tank body 1. A feed port 14 is provided at the top of the tank body 1, and a discharge port 15 is provided at the bottom of the tank body 1.

[0036] The stirring mechanism includes multiple stirring components, each stirring component includes a cross sleeve 21 and two stirring rods 22. The cross sleeves 21 in the multiple stirring components are sequentially sleeved on the outer side of the driving shaft 11 along the axial direction of the driving shaft 11, and the two stirring rods 22 are symmetrically arranged on the cross sleeve 21 along the radial direction of the tank body 1. The interior of each stirring rod 22 is hollow, and the circumference is densely covered with filter holes 221. The cleaning mechanism is provided in multiple groups and is respectively arranged corresponding to the multiple stirring components. Each cleaning mechanism is provided on the corresponding cross sleeve 21, and is used to clean the outer circumference of the stirring rod 22.

[0037] The stirring mechanism has two states: in the first state, a plurality of stirring components are arranged in an axially equidistant array along the driving shaft 11. At this time, two adjacent groups of cleaning mechanisms are close to each other, and are used to close the channel formed between two adjacent stirring rods 22, so that the material in the tank body 1 cannot pass between the two stirring rods 22. In the second state, the stirring mechanism is arranged in a double helix shape. At this time, the two adjacent groups of cleaning mechanisms are away from each other, so that the channel formed between the two adjacent stirring rods 22 is opened, and the material in the tank body 1 can pass between the two stirring rods 22.

[0038] The adjustment mechanism is used to drive the multiple stirring components to rotate relative to the driving shaft 11 from top to bottom around the axis of the driving shaft 11, and the rotation angles of the multiple stirring components decrease from top to bottom, so that the stirring mechanism switches between state one and state two.

[0039] Specifically, Figures 1 to 5 As shown, in the initial state, the stirring mechanism is in state one, at this time, the stirring mechanism is driven to rotate by the driving shaft 11, and the material in the tank body 1 will pass through the filter hole 221 provided on the stirring rod 22, and the impurities contained in the material will be intercepted on the outer peripheral side of the stirring rod 22, so as to filter the material, and then the intercepted impurities can be cleaned and collected by the cleaning mechanism; after completing the filtering of the material, the stirring mechanism is driven by the adjustment mechanism to switch from state one to state two, at this time, the stirring mechanism is driven to rotate by the driving shaft 11, and the material in the tank body 1 can be stirred by multiple stirring rods 22 arranged in a staggered manner, so that the material is evenly mixed. In this process, since the stirring rod 22 is provided with a filter hole 221, after the stirring rod 22 contacts the material, the multiple filter holes 221 on the surface of the stirring rod 22 can allow a part of the material to pass through, thereby reducing the resistance of the material to the stirring rod 22, and reducing the load of the resistance on the driving motor 13.

[0040] In some embodiments, the interior of the drive shaft 11 is hollow, the lower end of the drive shaft 11 passes through the bottom of the tank body 1 and is connected to the flange 12, a plurality of vent holes 1 are provided on the side wall of the drive shaft 11, each cross sleeve 21 is provided with a vent hole 211, and each end of the stirring rod 22 is provided with a vent hole 3 222, so that the introduced gas can pass through the drive shaft 11, the cross sleeve 21 and the stirring rod 22 in sequence, and finally enter the interior of the tank body 1.

[0041] Specifically, Figures 2 to 8 As shown, the external gas supply device is connected to the flange 12, and gas can be delivered to the drive shaft 11. The gas will pass through the drive shaft 11, the cross sleeve 21 and the stirring rod 22 in sequence, and finally enter the tank body 1. When the stirring mechanism is in state 1, the material in the tank body 1 can be filtered through the rotation of the stirring mechanism, and impurities in the material are intercepted on the outer peripheral side of the stirring rod 22, which may cause the filter hole 221 on the stirring rod 22 to be blocked. At this time, the gas supply device is started to deliver gas to the tank body 1. In the process of the gas entering the tank body 1 from the inside of the stirring rod 22, the gas can The filter holes 221 on the stirring rod 22 are backflushed and cleaned to blow out impurities blocked in the filter holes 221 to prevent the filter holes 221 from being blocked and affecting the filtering effect on the material; when the stirring mechanism is in state two, the material in the tank body 1 can be stirred through the rotation of the stirring mechanism to make the material mixed evenly. At this time, the air supply equipment is started to transport gas into the tank body 1. When the gas enters the interior of the tank body 1 and contacts the material in the tank body 1, tiny bubbles are formed in the material, thereby reducing the viscosity between the liquids, which helps to reduce the resistance to the rotation of the stirring rod 22 and make stirring easier.

[0042] In some embodiments, the cross sleeve 21 is provided with an annular cavity 212 through which gas can flow, and the second vent hole 211 is connected to the first vent hole through the annular cavity 212 .

[0043] Specifically, Figures 3 to 8 As shown, by setting the annular cavity 212, when the cross sleeve 21 rotates relative to the drive shaft 11, the gas in the drive shaft 11 can enter the annular cavity 212 through the vent hole 1, and then enter the stirring rod 22 through the vent hole 211 and the vent hole 3 222, so as to realize the smooth circulation of the gas.

[0044] In some embodiments, the cleaning mechanism includes two arc plates 31 and a driving structure. The two arc plates 31 are symmetrically arranged on the upper and lower sides of the stirring rod 22, and the inner arc surfaces of the two arc plates 31 are opposite. A scraper 32 is provided between each arc plate 31 and the stirring rod 22. One end of the scraper 32 is hinged to the inner arc surface of the arc plate 31 through a torsion spring, and the other end is in contact with the outer peripheral side of the stirring rod 22. The driving structure is used to drive the two arc plates 31 in the same group of cleaning mechanisms to approach or move away from each other, so that when the stirring mechanism is in state one, the outer arc surfaces of the two arc plates 31 located between two adjacent stirring rods 22 are in contact with each other, and when the stirring mechanism is in state two, the inner arc surfaces of the two arc plates 31 located on the upper and lower sides of the stirring rod 22 are in contact with the outer peripheral side of the stirring rod 22.

[0045] Specifically, Figures 2 to 5 As shown, when the stirring mechanism is in state one, the outer arc surfaces of the two arc plates 31 located between the two adjacent stirring rods 22 are in contact, and at the same time, one end of the scraper 32 away from the arc plate 31 is in contact with the outer peripheral side of the stirring rod 22. At this time, the channel formed between the two adjacent stirring rods 22 is closed, so that when the stirring mechanism rotates with the drive shaft 11, the material in the tank body 1 cannot pass between the two stirring rods 22, but can only pass through the filter hole 221 provided on the stirring rod 22, so as to achieve filtering of the material in this process; when the stirring mechanism switches from state one to state two, the two arc plates 31 in the same group of cleaning mechanisms are driven by the driving structure to approach each other until the inner arc surfaces of the two arc plates 31 located on the upper and lower sides of the stirring rod 22 are in contact with the outer peripheral side of the stirring rod 22. At this time, the flow formed between the two adjacent stirring rods 22 is opened, so that when the stirring mechanism rotates with the drive shaft 11, the material in the tank body 1 can pass between the two stirring rods 22, and can also pass through the filter hole 221 provided on the stirring rod 22, so as to achieve stirring of the material in this process.

[0046] In some embodiments, the upper and lower end surfaces of each cross sleeve 21 are provided with a rough structure, the cross sleeve 21 located at the bottom is fixedly connected to the drive shaft 11, and the remaining cross sleeves 21 are movably sleeved on the outside of the drive shaft 11, and the adjustment mechanism includes a driving member 23, the driving member 23 is arranged on the upper part of the drive shaft 11, and the output end is connected to the top cross sleeve 21, which can drive the top cross sleeve 21 to move downward along the axial direction of the drive shaft 11, so that the upper and lower end surfaces of two adjacent cross sleeves 21 are in contact. At this time, the cross sleeve 21 is in a locked state, so that multiple cross sleeves 21 can rotate synchronously with the drive shaft 11.

[0047] Specifically, Figures 2 to 6As shown, when the stirring mechanism is in state one or state two, the driving member 23 drives the top cross sleeve 21 to move downward along the axial direction of the driving shaft 11, which can squeeze the cross sleeve 21 so that the upper and lower end surfaces of two adjacent cross sleeves 21 are in contact. At this time, the cross sleeve 21 is in a locked state, so that multiple cross sleeves 21 can rotate synchronously with the driving shaft 11, so as to filter or stir the material in the tank body 1 through the rotation of the stirring mechanism; when the stirring mechanism switches between state one and state two, the driving member 23 drives the top cross sleeve 21 to move upward along the axial direction of the driving shaft 11, and the squeezing of the cross sleeve 21 is released. At this time, the cross sleeve 21 is in an unlocked state, so that each cross sleeve 21 can rotate independently relative to the other cross sleeves 21, so as to realize the state switching of the stirring mechanism through the different rotation angles between the multiple cross sleeves 21.

[0048] In some embodiments, a slide groove 213 is provided at the lower end of each cross sleeve 21, and the slide groove 213 is arranged along the circumference of the lower end of the cross sleeve 21. A slide rod 24 is provided at the upper end of each cross sleeve 21, and the slide rod 24 slides with the cross sleeve 21 in the longitudinal direction. The upper end of the slide rod 24 passes through the cross sleeve 21 and extends into the slide groove 213 provided on the upper cross sleeve 21, slidingly cooperating with the slide groove 213. The driving member 23 can drive the uppermost cross sleeve 21 to rotate relative to the drive shaft 11 around the axis of the drive shaft 11.

[0049] Specifically, Figures 3 to 7As shown, when the stirring mechanism is in state one, the material in the tank body 1 can be filtered by the rotation of the stirring mechanism. After the filtering of the material is completed, the top cross sleeve 21 is driven by the driving member 23 to move upward along the axial direction of the driving shaft 11, and the squeezing of the cross sleeve 21 is released, so that the cross sleeve 21 is in an unlocked state. At this time, the top cross sleeve 21 is driven by the driving member 23 to rotate relative to the driving shaft 11 around the axis of the driving shaft 11, which will cause the top cross sleeve 21 to rotate relative to the second cross sleeve 21. During this process, the sliding rod 24 on the second cross sleeve 21 will slide in the sliding groove 213 provided on the first cross sleeve 21. When the sliding rod 24 slides to the other end of the sliding groove 213, the first cross sleeve 21 can continue to rotate, so that the sliding rod 24 on the second cross sleeve 21 can be pushed to rotate with the first cross sleeve 21 When the sliding bar 24 moves to the other end of the sliding groove 213, the third cross sleeve 21 can be pushed to rotate by the continued rotation of the second cross sleeve 21, and so on, until the second to last cross sleeve 21 completes the rotation. At this time, the stirring mechanism is in state two, that is, the multiple stirring components in the stirring mechanism are in a double helix shape, so that the multiple stirring rods 22 are staggered, and then the top cross sleeve 21 is driven by the driving member 23 to move downward along the axial direction of the driving shaft 11, so that the cross sleeve 21 is in a locked state again. At this time, the material in the tank body 1 can be stirred by the rotation of the stirring mechanism.

[0050] In some embodiments, the driving structure includes a connecting rod 1 33, a connecting rod 2 34 and a contact wheel 35. The connecting rod 1 33 is connected to the arc plate 31 located on the upper side, and the connecting rod 2 34 is connected to the arc plate 31 located on the lower side. Two mounting grooves 214 are longitudinally provided on the left and right end faces of the cross sleeve 21. The connecting rod 1 33 and the connecting rod 2 34 are longitudinally arranged and slideably cooperate with the cross sleeve 21 through the corresponding mounting grooves 214 respectively. The contact wheel 35 is connected to the end of the stirring rod 22, and the two sides are respectively in frictional contact with the connecting rod 1 33 and the connecting rod 2 34. The lower end of the sliding rod 24 passes through the cross sleeve 21 and is connected to the arc plate 31 located on the upper side. The interior of the sliding groove 213 is in the shape of an inclined surface.

[0051] Specifically, Figures 3 to 8As shown, when a certain cross sleeve 21 rotates relative to the adjacent cross sleeve 21 on the lower side, the slide bar 24 on the lower cross sleeve 21 will slide in the slide groove 213 provided on the upper cross sleeve 21. Since the interior of the slide groove 213 is inclined, the slide bar 24 will move up and down under the action of the inclined surface. When the slide bar 24 moves downward, it will drive the upper arc plate 31 to move, thereby driving the connecting rod 1 33 to move downward. At this time, the friction transmission between the connecting rod 1 33 and the contact wheel 35 will cause the contact wheel 35 to rotate, and the friction transmission between the contact wheel 35 and the second connecting rod 34 will drive the second connecting rod 34 to move upward, thereby driving the lower arc plate 31 to move upward, so that the two arc plates 31 in the same group of cleaning mechanisms are close to each other. Similarly, when the slide bar 24 moves upward, the two arc plates 31 in the same group of cleaning mechanisms will move away from each other under the cooperation of the connecting rod 1 33, the second connecting rod 34 and the contact wheel 35.

[0052] In some embodiments, a collecting groove 311 is provided on the inner curved surface of the curved plate 31 at the lower side for collecting impurities scraped off by the scraper 32 .

[0053] Specifically, Figure 1 , Figure 5 and Figure 8 As shown, during the process of the stirring mechanism switching from state one to state two, the two arc plates 31 in the same cleaning mechanism will approach each other under the action of the driving structure, wherein the rotation of the contact wheel 35 will drive the stirring rod 22 connected thereto to rotate, and since one side of the scraper 32 is in contact with the outer peripheral side of the stirring rod 22, the impurities intercepted on the outer peripheral side of the stirring rod 22 can be scraped off by the scraper 32 during the rotation of the stirring rod 22 and collected in the collecting tank 311; when the stirring mechanism is in state two, the inner arc surface of the arc plate 31 is in contact with the outer peripheral side of the stirring rod 22, and at this time the scraper 32 is in contact with the arc plate 31 The inner arc surface of the collecting tank 311 can be closed to prevent the material from contacting the impurities in the collecting tank 311 again during the stirring process. After the material is mixed, the material is discharged from the discharge port 15, and then the stirring mechanism is switched to state 1 through the adjustment mechanism, and the two arc plates 31 in the same group of cleaning mechanisms are moved away from each other under the action of the driving structure. During this process, the scraper 32 will rotate under the action of the torsion spring to expose the collecting tank 311, so that when the inside of the tank body 1 is cleaned by water washing, the collecting tank 311 can be cleaned together, so that the impurities in the collecting tank 311 are discharged from the discharge port 15 with the water flow.

[0054] like Figure 1As shown, a liquid level alarm 16 and a plurality of observation windows 17 are provided on the tank body 1. By providing the observation windows 17, the mixing condition of the materials in the tank body 1 can be directly observed, so that the stirring speed can be adjusted in time to improve the production efficiency and product quality. In addition, problems that may occur in the tank body 1 can be discovered in time, so that preventive measures can be taken in time to ensure safe operation. For equipment that automatically adds materials, by providing the liquid level alarm 16, a warning can be issued in time when the liquid level reaches a dangerous level, reminding the operator to take measures, so as to avoid safety accidents that may be caused by overflow, leakage, etc.

[0055] like Figures 1 to 8 As shown, the present invention also provides a mixing process using the above-mentioned mixing equipment for biodiesel processing, which specifically includes the following steps: S1, adding materials: adding various raw materials to be mixed into the tank body 1 from the feed port 14 in sequence; S2, filtration: In the initial state, the stirring mechanism is in state 1. At this time, the driving motor 13 is started, and the stirring mechanism can be driven to rotate through the driving shaft 11. During this process, the raw materials in the tank body 1 will pass through the filter holes 221 on the stirring rod 22, and the impurities in the raw materials will be intercepted on one side of the stirring rod 22, thereby filtering the raw materials; S3, stirring: after the material is filtered, the stirring mechanism is switched to state 2 by the regulating mechanism, at which time the stirring mechanism is driven by the driving shaft 11 to continue to rotate, and the raw materials can be stirred by the multiple stirring rods 22 arranged in a staggered manner, so that the multiple raw materials are mixed evenly; S4, cleaning: during the process of the stirring mechanism switching from state 1 to state 2, the cleaning mechanism can clean and collect the intercepted impurities; S5, discharging: discharging the mixed materials from the discharging port 15 at the lower end of the tank body 1.

[0056] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A mixing device for biodiesel processing, comprising a tank (1) and a drive shaft (11), characterized in that: It also includes a stirring mechanism, a cleaning mechanism and a regulating mechanism arranged in the tank body (1); The stirring mechanism comprises a plurality of stirring components, each stirring component comprises a cross sleeve (21) and two stirring rods (22), the cross sleeves (21) in the plurality of stirring components are sequentially sleeved on the outer side of the driving shaft (11) along the axial direction of the driving shaft (11), the two stirring rods (22) are symmetrically arranged on the cross sleeve (21) along the radial direction of the tank body (1), each stirring rod (22) is hollow, and has filter holes (221) densely distributed on the circumference, the cleaning mechanism is provided in a plurality of groups, and is respectively provided corresponding to the plurality of stirring components, each cleaning mechanism is provided on the corresponding cross sleeve (21), and is used to clean the outer circumference of the stirring rod (22); The stirring mechanism has two states: in state one, a plurality of stirring components are arranged in an array at equal intervals along the axial direction of the driving shaft (11), and two adjacent groups of cleaning mechanisms are close to each other, so as to close the channel formed between two adjacent stirring rods (22); in state two, the stirring mechanism is arranged in a double helical shape, and two adjacent groups of cleaning mechanisms are away from each other, so that the channel between the stirring rods (22) is opened; The adjustment mechanism is used to drive the multiple stirring components to rotate relative to the driving shaft (11) from top to bottom around the axis of the driving shaft (11), and the rotation angles of the multiple stirring components decrease from top to bottom, so that the stirring mechanism switches between state one and state two.

2. A mixing device for biodiesel processing according to claim 1, characterized in that: The interior of the driving shaft (11) is hollow. The lower end of the driving shaft (11) passes through the bottom of the tank body (1) and is connected to a flange (12). A plurality of first vent holes are provided on the side wall of the driving shaft (11). Each cross sleeve (21) is provided with a second vent hole (211). The end of each stirring rod (22) is provided with a third vent hole (222), so that gas can pass through the driving shaft (11), the cross sleeve (21) and the stirring rod (22) in sequence and finally enter the interior of the tank body (1).

3. A mixing device for biodiesel processing according to claim 2, characterized in that: An annular cavity (212) through which gas can flow is provided on the cross sleeve (21), and the second vent hole (211) is connected to the first vent hole through the annular cavity (212).

4. A mixing device for biodiesel processing according to claim 1, characterized in that: The cleaning mechanism comprises two arc plates (31) and a driving structure. The two arc plates (31) are symmetrically arranged on the upper and lower sides of the stirring rod (22), and the inner arc surfaces of the two arc plates (31) are opposite to each other. A scraper (32) is arranged between each arc plate (31) and the stirring rod (22). One end of the scraper (32) is hinged to the inner arc surface of the arc plate (31) through a torsion spring, and the other end is in contact with the outer peripheral side of the stirring rod (22). The driving structure is used to drive the two arc plates (31) in the same group of cleaning mechanisms to move closer to or away from each other, so that when the stirring mechanism is in state one, the outer arc surfaces of the two arc plates (31) located between two adjacent stirring rods (22) are in contact with each other. When the stirring mechanism is in state two, the inner arc surfaces of the two arc plates (31) located on the upper and lower sides of the stirring rod (22) are in contact with the outer peripheral side of the stirring rod (22).

5. A mixing device for biodiesel processing according to claim 4, characterized in that: The upper and lower end surfaces of each cross sleeve (21) are provided with a rough structure. The cross sleeve (21) located at the bottom is fixedly connected to the drive shaft (11), and the remaining cross sleeves (21) are movably sleeved on the outside of the drive shaft (11). The adjustment mechanism comprises a driving member (23). The driving member (23) is arranged on the upper part of the drive shaft (11), and the output end is connected to the uppermost cross sleeve (21). The driving member (23) can drive the uppermost cross sleeve (21) to move downward along the axial direction of the drive shaft (11), so that the upper and lower end surfaces of two adjacent cross sleeves (21) are in contact. At this time, the cross sleeve (21) is in a locked state, so that the multiple cross sleeves (21) can rotate synchronously with the drive shaft (11).

6. A mixing device for biodiesel processing according to claim 5, characterized in that: A slide groove (213) is provided at the lower end of each cross sleeve (21), and the slide groove (213) is arranged along the circumference of the lower end of the cross sleeve (21). A slide rod (24) is provided at the upper end of each cross sleeve (21), and the slide rod (24) is slidably matched with the cross sleeve (21) in the longitudinal direction. The upper end of the slide rod (24) passes through the cross sleeve (21) and extends into the slide groove (213) provided on the upper cross sleeve (21), and is slidably matched with the slide groove (213). The driving member (23) can drive the uppermost cross sleeve (21) to rotate relative to the drive shaft (11) around the axis of the drive shaft (11).

7. A mixing device for biodiesel processing according to claim 6, characterized in that: The driving structure comprises a connecting rod 1 (33), a connecting rod 2 (34) and a contact wheel (35); the connecting rod 1 (33) is connected to the arc-shaped plate (31) located on the upper side; the connecting rod 2 (34) is connected to the arc-shaped plate (31) located on the lower side; the connecting rod 1 (33) and the connecting rod 2 (34) are both arranged longitudinally and slidably cooperate with the cross sleeve (21); the contact wheel (35) is connected to the end of the stirring rod (22), and the two sides are respectively in frictional contact with the connecting rod 1 (33) and the connecting rod 2 (34); the lower end of the sliding rod (24) passes through the cross sleeve (21) and is connected to the arc-shaped plate (31) located on the upper side; the interior of the sliding groove (213) is in an inclined surface shape.

8. A mixing device for biodiesel processing according to claim 4, characterized in that: A collecting groove (311) is provided on the inner curved surface of the curved plate (31) located at the lower side, and is used to collect impurities scraped off by the scraper (32).

9. A mixing device for biodiesel processing according to claim 1, characterized in that: The tank body (1) is provided with a liquid level alarm (16) and a plurality of observation windows (17).

10. A mixing process for biodiesel processing, characterized in that: A mixing device for biodiesel processing according to any one of claims 1 to 9 is used, comprising the following steps: S1, adding materials: adding various raw materials to be mixed into the tank (1) in sequence; S2, filtering: in the initial state, the stirring mechanism is in state 1, at which time the stirring mechanism is driven to rotate by the driving shaft (11), and the material can be filtered through the filter holes (221) on the stirring rod (22), so that impurities in the material are intercepted on the outer peripheral side of the stirring rod (22); S3, stirring: after the material is filtered, the stirring mechanism is switched to state 2 through the regulating mechanism. At this time, the stirring mechanism is driven to rotate by the driving shaft (11), and the material can be stirred by the staggered stirring rods (22) so that the material is mixed evenly; S4, cleaning: during the process of the stirring mechanism switching from state 1 to state 2, the cleaning mechanism can clean and collect the intercepted impurities; S5, discharging: discharging the mixed materials from the tank (1).

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