Multi-stage separation and purification device and method for waste grease

Abstract

The invention relates to the field of waste grease separation, in particular to a waste grease multistage separation and purification device and method.The waste grease multistage separation and purification device comprises a vertically-through separation barrel, a limiting frame is slidably arranged in the separation barrel, a storage frame is rotatably arranged in the limiting frame, and a conical cover and a plugging plate are hinged to the upper side and the lower side of the storage frame through torsional springs; a water inlet pipe penetrates through one side of the separation barrel, a stirring assembly is arranged in the material storage frame, a main frame is arranged above the separation barrel, when the material storage frame rotates in the limiting frame, the inner wall stirring shafts are driven to rotate, and meanwhile, the annular ring is driven by external force to drive the other group of stirring shafts to rotate reversely through the supporting frame; the two groups of stirring shafts rotate in opposite directions, so that waste grease blocks can be effectively scattered, and the waste grease is separated from impurities and fully mixed with water; and the heating plate is combined to heat the water, so that the grease is fully melted in the water, and the separation efficiency and purity of the waste grease are further improved.

Description

Technical Field

[0001] The invention relates to the field of waste grease separation, and in particular to a waste grease multi-stage separation and purification device and method. Background Art

[0002] With the booming catering industry, a large amount of waste grease is generated every day. These waste greases include frying oil in the cooking process, leftover grease from cooking, and grease produced by meat processing. If discharged directly into the sewer, it will not only cause pipe blockage, but also interfere with the normal operation of sewage treatment when entering the sewage treatment system. However, waste grease is also a potential resource. Its main component, triglyceride, can be decomposed into valuable components such as glycerol and fatty acids through processing. Fatty acids can be used to produce biodiesel, and glycerol can be used in cosmetics, pharmaceuticals and other industries.

[0003] Existing waste grease treatment technologies have many defects. In terms of separation technology, a single technology such as simple filtration or sedimentation cannot completely separate the different components in the waste grease. It can only remove larger solid impurities, and it is difficult to remove harmful substances and other components dissolved in the grease. At the same time, since waste grease usually contains animal oil and vegetable oil, existing technologies cannot or are difficult to quickly separate them. It often requires multiple devices to first separate the impurities in the grease and then separate the grease. The process is cumbersome and inefficient. Therefore, a more efficient multi-stage separation technology is needed to solve these problems.

[0004] In the prior art, for example, the patent with publication number CN104210130B discloses a grease separator, whose working principle is: put the kitchen waste into the feed hopper, the inlet section of the feed hopper is provided with a flow sensor, when the kitchen waste in the feed hopper accumulates to a certain amount and reaches the set value of the pressure sensor, the screw starts to work under the drive of the motor, the screw passes through the inner cavity of the shell, the filter screen is arranged on the inner cavity wall of the shell and wraps the screw, after the kitchen waste enters, the sewage enters the oil-water separator connected to the liquid outlet through the high-strength filter screen under the action of the screw driven by the spiral drive. However, although this technology has improved some of the original problems, there are still aspects that need to be further optimized to better meet the actual detection needs.

[0005] 1. The above separator is difficult to meet the requirements of accurate and efficient separation when processing waste oil. Although it can perform basic separation of solid-liquid and oil-water, it is unable to effectively separate the complex components in the waste oil, especially the mixture of animal oil and vegetable oil. Therefore, in practical applications, the mixture of different types of oil will affect the subsequent resource recycling. For example, in the production of biodiesel, if animal oil and vegetable oil are not effectively separated, the quality of biodiesel will be unstable.

[0006] 2. The above-mentioned prior art relies on screws and filters to separate solids and liquids. The filter has limited filtering accuracy and is difficult to intercept tiny food residue particles, fibrous impurities and other tiny debris. These debris are easy to enter the oil-water separation link, causing blockage and increasing equipment maintenance costs and frequency. Moreover, the device lacks a debris classification and processing structure design, and simply discharges solid debris into a garbage storage bin without classifying and recycling debris with recycling value, resulting in the loss of recyclable resources.

[0007] Therefore, based on the above-stated viewpoints, there is still room for optimization in the existing methods for separating waste grease. Summary of the invention

[0008] In order to solve the above problems, the present invention provides a multi-stage separation and purification device for waste oil, including a separation barrel that passes through from top to bottom, a limit frame is slidably provided in the separation barrel, a storage frame is rotatably provided in the limit frame, and a conical cover and a sealing plate are hinged on the upper and lower sides of the storage frame by torsion springs, and the conical cover has a plurality of through holes.

[0009] A water inlet pipe runs through one side of the separation barrel, a stirring assembly is arranged in the storage frame, a main frame is arranged above the separation barrel, a cooling plate is arranged in the main frame, the cooling plate arranged in the main frame extends into the separation barrel to condense the grease, and a heating plate is arranged in the separation barrel to accelerate the decomposition of the grease.

[0010] Preferably, the limit frame is slidably arranged in the separation barrel by means of keyway cooperation, and the stirring assembly includes a plurality of longitudinally arranged stirring shafts arranged on the inner wall of the material storage frame along the axis thereof, and an annular groove is opened on the inner wall of the material storage frame, and an annular ring rotates in the annular groove.

[0011] Preferably, a support frame is provided on the inner wall of the annular ring, and a middle part of the support frame extends to the middle part of the material storage frame and is also provided with several stirring shafts distributed along its axis, and the stirring shafts are staggered with the other stirring shafts.

[0012] Preferably, a water inlet groove corresponding to the end of the water inlet pipe is provided on one side of the limiting frame, and a plurality of strip grooves distributed along the axis thereof are provided on the inner side of the material storage frame.

[0013] Preferably, it includes a base plate and support columns, the base plate is provided with support columns, the separation barrel is provided between the support columns, an extension frame plate is provided at the upper end of the support column on one side, a bending plate is slidably provided in the extension frame plate, and the main frame is provided at the lower end of the bending plate.

[0014] An L-shaped annular groove is provided on the main frame, and an L-arc plate located in the annular groove is provided on the side of the bending plate facing the main frame. A collecting component for collecting grease is provided in the main frame, and the collecting component includes several sliding cavities opened in the main frame.

[0015] Preferably, a circular groove is provided on the inner wall of the sliding cavity, a sliding shaft is slidably arranged in the sliding cavity, a circular plate located in the circular groove is arranged on the outer side of the sliding shaft, and a push spring is arranged between the circular plate and the circular groove.

[0016] Preferably, a C-shaped frame is provided on one side support column, and a scraping assembly for scraping off grease is provided on the C-shaped frame. The scraping assembly includes a swing plate hinged on the C-shaped frame through a torsion spring, and the swing plate is inclined toward the main frame.

[0017] Preferably, the L-arc plate is hinged to the bending plate via a torsion spring.

[0018] Preferably, a conveyor belt mechanism is installed on the swing plate, and a scraper plate in contact with the outer side of the conveyor belt mechanism is provided between the extension sections on both sides of the U-shaped frame.

[0019] In addition, the present invention also provides a multi-stage separation and purification method for waste oil and fat, comprising the following steps: S1, pouring grease: the limit frame slides to the upper side of the separation barrel, opens the conical cover, pours the waste grease into the storage frame, and drives the limit frame to move to the bottom of the separation barrel.

[0020] S2, adding water and stirring: water is poured into the separation barrel through the water inlet pipe, and the limit frame blocks the bottom of the separation barrel to allow the separation barrel to store water. Part of the water enters the storage frame through the through hole, and the stirring component is started to stir the waste grease.

[0021] S3, preheating and temperature control: the stirred waste grease is mixed with water and enters the separation barrel through the through hole. The residue in the waste grease is blocked by the through hole. The heating plate heats the water so that the grease is fully mixed in the water.

[0022] S4, cooling and separation: let it stand, the tiny residues in the water settle, the bending plate drives the main frame down into the water, the heating plate stops heating the water, the cooling plate cools down the lower end surface of the main frame, the grease condenses at the bottom of the main frame when it gets cold, and the main frame rises to remove the grease.

[0023] S5, oil type distinction: according to the condensation temperature of animal oil and vegetable oil, adjust the corresponding temperature of the cooling plate to extract animal and vegetable oils separately.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention is provided with a stirring assembly, in which the stirring shafts on the inner wall of the storage frame and the support frame are staggered and distributed with each other; when the storage frame rotates in the limit frame, the inner wall stirring shaft is driven to rotate, and at the same time, the annular ring is driven by an external force to drive another group of stirring shafts to rotate in the opposite direction through the support frame; the two groups of stirring shafts rotate in the opposite direction, which can effectively break up the waste grease clumps, separate the waste grease and debris, and fully mix them with water; combined with the heating of the water by the heating plate, the grease is fully melted in the water, thereby improving the efficiency and purity of the waste grease separation.

[0025] Second, the present invention utilizes linkage components to achieve the coordinated operation of the limit frame, annular ring, main frame and storage frame. The linkage gear ring drives the linkage shaft through gear transmission, and the linkage shaft drives the linkage ring, and the linkage ring drives the annular ring to rotate with the help of an electromagnet. The arc-shaped rack on the outer support frame of the main frame meshes with the linkage gear ring, which can drive the main frame to rotate, and then drive the storage frame to rotate; this coordinated operation makes the rotation direction of the stirring shaft inconsistent, allowing the stirring process to be more complete, and further enhancing the ability to handle waste grease.

[0026] 3. The present invention realizes efficient control of the working process of the device with the help of the plugging component and the driving unit. In the plugging component, rotating the plugging ring can open or close the arc groove on the outer wall of the separation barrel, discharge the water in the separation barrel in advance, and avoid the mixing of residue and water when opening the plugging plate at the bottom of the storage frame; the driving cylinder of the driving unit drives the driving motor to move up and down, and the driving motor meshes with the driving gear, driving gear ring and plugging gear ring respectively through the transmission gear, thereby driving the bending plate, linkage gear ring and plugging ring to work respectively. The operation is convenient and quick, and the overall work efficiency is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the main body structure of the present invention.

[0029] Figure 2 It is a partial structural schematic diagram of the main body of the present invention.

[0030] Figure 3 It is a cross-sectional view of a separation barrel of the present invention.

[0031] Figure 4 It is a schematic diagram of the keyway matching between the limit frame and the separation barrel of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the stirring assembly of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the blocking plate of the present invention.

[0034] Figure 7 It is a schematic diagram of the structure of the collection component of the present invention.

[0035] Figure 8 It is a bottom view of the collecting assembly of the present invention.

[0036] Fig. 9 The present invention Figure 8 A partial enlarged view of the structure at point A.

[0037] Fig.10 It is a plan view of the scraping assembly of the present invention.

[0038] Fig.11 It is a schematic structural diagram of the scraping assembly of the present invention.

[0039] Fig.12 It is a structural schematic diagram of the linkage assembly of the present invention.

[0040] Fig.13 It is a cross-sectional view of the linkage assembly of the present invention.

[0041] Fig.14 The present invention Fig.13 A magnified view of part of the structure at point B.

[0042] Fig.15 The present invention Fig.13 A magnified view of part of the structure at point C in the middle.

[0043] Fig.16 The present invention Fig.13 A magnified view of part of the structure at D in the middle.

[0044] Fig.17 It is a structural schematic diagram of the plugging component of the present invention.

[0045] Fig.18 It is a structural schematic diagram of the drive unit of the present invention.

[0046] In the figure, 1, bottom plate; 10, support column; 11, separation barrel; 20, limit frame; 12, storage frame; 13, conical cover; 14, through hole; 15, blocking plate; 16, water inlet pipe; 17, extension frame plate; 18, bending plate; 19, main frame; 2, stirring assembly; 21, stirring shaft; 22, annular ring; 23, support frame; 24, water inlet groove; 25, strip groove; 3, collecting assembly; 31, L-arc plate; 32, sliding cavity; 33, sliding shaft; 34, circular plate; 35, push spring; 4, scraping assembly; 40, U-shaped frame ; 41. Swinging plate; 42. Conveyor belt mechanism; 43. Scraping plate; 44. Receiving frame; 5. Linkage assembly; 50. Linkage gear ring; 51. Linkage shaft; 52. Rotating groove; 53. Linkage ring; 54. Support frame; 55. Arc rack; 56. Linkage screw rod; 57. Ratchet; 6. Sealing assembly; 60. Arc groove; 61. Sealing ring; 7. Driving unit; 70. Driving screw rod; 71. Driving gear; 72. Driving gear ring; 73. Sealing gear ring; 74. Driving cylinder; 75. Driving motor; 76. Transmission gear. DETAILED DESCRIPTION

[0047] The following combination Figures 1 to 18 Embodiments of the present invention are described in detail.

[0048] The embodiment of the present application discloses a waste oil multi-stage separation and purification device and method, which is mainly used in the process of separating and purifying waste oil. In terms of technical effect, it can achieve separation of oil and debris, mixing of water and oil, blocking of residues, condensation extraction of oil, and separation and extraction of animal and plant oils; and the present application can also achieve efficient stirring through the linkage of various components, drain water in advance to avoid mixing of residues and water, and drive each key component to work separately through the driving unit.

[0049] Example 1: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it includes a base plate 1, support columns 10, a separation barrel 11, a limit frame 20, a storage frame 12, a conical cover 13, a through hole 14, a sealing plate 15, a water inlet pipe 16, a stirring assembly 2, an extension frame plate 17, a bending plate 18 and a main frame 19. Several support columns 10 are arranged on the upper end of the base plate 1, and the separation barrel 11 is installed between the support columns 10. The support columns 10 are used to support the separation barrel 11.

[0050] The separation barrel 11 is through-through, and a limit frame 20 is slidably arranged inside the separation barrel 11. A storage frame 12 is rotatably arranged inside the limit frame 20. The storage frame 12 can rotate inside the limit frame 20, and the storage frame 12 can also slide up and down inside the separation barrel 11 following the limit frame 20.

[0051] A conical cover 13 is hinged on the upper side of the storage frame 12 through a torsion spring, and a plurality of through holes 14 are provided on the conical cover 13 and are distributed along its axis. A sealing plate 15 is hinged on the lower side of the storage frame 12 through a torsion spring. Handles are provided on the outer sides of the conical cover 13 and the sealing plate 15, that is, the conical cover 13 and the sealing plate 15 can be opened through the handles to pour waste grease into the storage frame 12 and take out waste grease from the bottom of the storage frame 12, and the conical cover 13 can be swung back to the initial position driven by the corresponding torsion spring to seal the upper and lower ends of the storage frame 12.

[0052] A water inlet pipe 16 is provided through one side of the separation barrel 11 , and water is injected into the separation barrel 11 through the water inlet pipe 16 .

[0053] A stirring assembly 2 for stirring the grease is arranged in the material storage frame 12 .

[0054] An extension frame plate 17 is provided at the upper end of the support column 10 on one side, a bending plate 18 is slidably provided inside the extension frame plate 17, a main frame 19 is provided at the lower side of the bending plate 18, a cooling plate (not shown) is provided inside the main frame 19, and the bending plate 18 drives the main frame 19 to move in the up and down directions under the limit of the corresponding extension frame plate 17, so that the main frame 19 can enter the separation barrel 11, and the cooling plate is used to cool the bottom of the main frame 19.

[0055] A heating plate (not shown) is disposed in the separation barrel 11 , and the heating plate is used to heat the water in the separation barrel 11 .

[0056] According to the above device, a multi-stage separation and purification method for waste oil and fat is also proposed in this implementation process: S1, pouring grease: the limiting frame 20 slides to the upper side of the separation barrel 11, opens the conical cover 13, pours the waste grease into the storage frame 12, and drives the limiting frame 20 to move to the bottom of the separation barrel 11.

[0057] S2, adding water and stirring: water is poured into the separation barrel 11 through the water inlet pipe 16, and the storage frame 12 blocks the bottom of the separation barrel 11, so that the separation barrel 11 stores water, and part of the water enters the storage frame 12 through the through hole 14, and the stirring component 2 is started to stir the waste oil.

[0058] S3, preheating and temperature control: the stirred waste grease is mixed with water and enters the separation barrel 11 through the through hole 14. The residue in the waste grease is blocked by the through hole 14. The heating plate heats the water so that the grease is fully mixed in the water.

[0059] S4, cooling and separation: let it stand, the tiny residues in the water settle, the bending plate 18 drives the main frame 19 to descend into the water, the heating plate stops heating the water, the cooling plate cools down the lower end surface of the main frame 19, the grease condenses at the bottom of the main frame 19 when it gets cold, and the main frame 19 rises to remove the grease.

[0060] S5, oil type distinction: according to the condensation temperature of animal oil and vegetable oil, adjust the corresponding temperature of the cooling plate to extract animal and vegetable oils separately.

[0061] Reference Figure 4 , Figure 5 and Figure 6 As shown, the stirring component 2 is used to stir the oil; specifically, the stirring component 2 includes a stirring shaft 21, an annular ring 22, a support frame 23, a water inlet groove 24 and a strip groove 25, and the limit frame 20 is slidably set in the separation barrel 11 by means of a key groove, that is, the limit frame 20 can slide in the up and down directions in the separation barrel 11 by means of a key groove, and it is limited by the key groove and cannot rotate in the separation barrel 11.

[0062] The inner wall of the material storage frame 12 is provided with several stirring shafts 21 distributed along its axis and arranged longitudinally, the inner wall of the material storage frame 12 is provided with an annular groove, an annular ring 22 is rotated in the annular groove, and a support frame 23 is provided on the inner wall of the annular ring 22. The middle part of the support frame 23 extends to the middle of the material storage frame 12 and is also provided with several stirring shafts 21 distributed along its axis, and the stirring shaft 21 is staggered with the other stirring shafts 21. Therefore, the material storage frame 12 can rotate under the limit of the limit frame 20, and move up and down synchronously with the limit frame 20, and when the annular ring 22 is driven by external force, the corresponding stirring shaft 21 can be driven to rotate through the support frame 23 The material storage frame 12 can drive the stirring shaft 21 on its inner wall to rotate in the opposite direction. The two sets of stirring shafts 21 stir the waste grease in a staggered array to separate the oil and water, remove the debris, and then achieve full blending of water and oil. Combined with the heating of the heating plate, the grease is melted in the water, and then enters the water in the separation barrel 11 through the through hole 14. After the grease is melted, it will float on the water surface of the separation barrel 11. At this time, the bottom of the main frame 19 is in contact with the water surface to adsorb the grease on its bottom, and then the animal oil and the vegetable oil are solidified at different temperatures when they are cooled, and the cooling temperature of the cooling plate is changed to extract the animal oil or the vegetable oil separately.

[0063] A water inlet groove 24 corresponding to the end of the water inlet pipe 16 is provided on one side of the limit frame 20, and a plurality of strip grooves 25 distributed along the axis thereof are provided on the inner side of the storage frame 12. When the water inlet groove 24 on the limit frame 20 corresponds to the end of the water inlet pipe 16, water is supplied to the water inlet groove 24 through the water inlet pipe 16, and the water will enter the strip groove 25. At this time, even if the storage frame 12 rotates, the plurality of strip grooves 25 will correspond to the water inlet groove 24, and the water will enter the storage frame 12 through the strip groove 25. Then, the stirring shaft 21 stirs the waste grease while the water flow flushes the grease, further improving the mixing efficiency. When the water in the storage frame 12 is full, the water flow mixed with grease will enter the separation barrel 11 through the through hole 14, and then the heating plate is started to heat the water, so that the grease is fully mixed into the water, and the residue in the waste grease, such as leftovers, will be blocked by the through hole 14 and retained in the storage frame 12.

[0064] Reference Figure 7 , Figure 8 and Fig. 9 As shown, an annular groove with an L-shaped cross-section is provided on the main frame 19, and an L-arc plate 31 located in the annular groove is provided on the side of the bending plate 18 facing the main frame 19, and a collecting component 3 for collecting grease is provided in the main frame 19; specifically, the collecting component 3 includes an L-arc plate 31, a sliding cavity 32, a sliding shaft 33, a circular plate 34 and a push spring 35, several sliding cavities 32 are provided inside the main frame 19, a circular groove is provided on the inner wall of the sliding cavity 32, a sliding shaft 33 is slidably provided in the sliding cavity 32, a circular plate 34 located in the circular groove is provided on the outer side of the sliding shaft 33, and a push spring 35 is provided between the circular plate 34 and the circular groove.

[0065] In the initial state, the push spring 35 drives one end of the corresponding sliding shaft 33 to be located outside the sliding cavity 32 through the circular plate 34. After the waste grease is placed in the storage frame 12 and lowered, the bending plate 18 indirectly drives the main frame 19 to descend into the separation barrel 11, so that the sliding shaft 33 is inserted into the corresponding through hole 14, that is, the top of the conical cover 13 is conical, and part of the sliding shaft 33 on the side will not be inserted into the through hole 14, that is, part of the through hole 14 will not be blocked by the sliding shaft 33. At this time, the annular ring 22 drives the corresponding stirring shaft 21 to rotate, and the main frame 19 drives the storage frame 12 to rotate in the opposite direction through the cooperation of the sliding shaft 33 and the through hole 14, so as to stir the waste grease in the storage frame 12, and during the stirring process, the water and grease in the storage frame 12 will enter the separation barrel 11 through the unblocked through hole 14.

[0066] After stirring is completed, the bending plate 18 drives the main frame 19 to move to the top of the separation barrel 11, and the bottom surface of the main frame 19 contacts the horizontal plane. After the water is heated, the grease floats to the water surface. At this time, the cooling plate is started to quickly cool down the bottom of the main frame 19 and the outside of the sliding shaft 33, so that the grease condenses on the bottom of the main frame 19 and the outside of the sliding shaft 33. The sliding shaft 33 can increase the contact area between the bottom of the main frame 19 and the water, and extract more grease.

[0067] Reference Fig.10 and Fig.11 As shown, a C-shaped frame 40 is provided on the support column 10 on one side, and a scraping assembly 4 for scraping off grease is provided on the C-shaped frame 40; specifically, the scraping assembly 4 includes a C-shaped frame 40, a swing plate 41, a conveyor belt mechanism 42, a scraping plate 43 and a material receiving frame 44, the swing plate 41 is hinged on the C-shaped frame 40 by a torsion spring, and the swing plate 41 is inclined toward the direction of the main frame 19, the L-arc plate 31 is hinged to the bending plate 18 by a torsion spring, a conveyor belt mechanism 42 is installed on the swing plate 41, and a scraping plate 43 in contact with the outer side of the conveyor belt mechanism 42 is provided between the extension sections on both sides of the C-shaped frame 40, and a material receiving frame 44 is placed on the bottom plate 1.

[0068] The main frame 19 can swing counterclockwise at the hinge point of the L-arc plate 31, and the swing plate 41 can swing clockwise at its hinge point. The main frame 19 and the swing plate 41 are limited by the corresponding torsion springs in the initial state and remain in the initial position. When the main frame 19 is adsorbed, it is driven up by the bending plate 18, and its top contacts the swing plate 41 and the conveyor belt mechanism 42 to drive the swing plate 41 to swing clockwise, avoiding the ascending path of the main frame 19. After the bending plate 18 drives the main frame 19 to rise to the top, it drives the main frame 19 to descend, and the bottom of the main frame 19 contacts the upper end of the swing plate 41 and the conveyor belt mechanism 42. At this time, the main frame 19 is forced to swing counterclockwise, and then the conveyor belt mechanism 42 is started to run, the grease on the bottom of the main frame 19 will be wiped off by the conveyor belt mechanism 42 in transportation, and the sliding shaft 33 will be retracted into the corresponding sliding cavity 32 after contacting the swing plate 41 and the conveyor belt mechanism 42, and the grease on the outside will slide from the outside of the sliding shaft 33 after contacting the bottom of the main frame 19, and be wiped off by the conveyor belt mechanism 42, and after the conveyor belt mechanism 42 drives the wiped grease to contact the scraper plate 43, the scraper plate 43 will scrape off the grease on the conveyor belt of the conveyor belt mechanism 42, and the scraped grease will fall along the scraper plate 43 into the receiving frame 44 for storage.

[0069] When the grease is extracted, the sealing plate 15 is opened through the handle at the bottom of the storage frame 12 so that the remaining grease residue falls out from the bottom of the storage frame 12 .

[0070] It should be noted that the "conveyor belt mechanism 42" is a well-known technology, so it will not be described in detail.

[0071] Example 2: Reference Fig.12 , Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, on the basis of Example 1, in order to drive the limit frame 20 to move up and down, the annular ring 22 and the main frame 19 are rotated, and a linkage component 5 is arranged in the separation barrel 11; specifically, the linkage component 5 includes a linkage gear ring 50, a linkage shaft 51, a rotating groove 52, a linkage ring 53, a support frame 54, an arc-shaped rack 55, a linkage screw rod 56 and a ratchet member 57, and the limit groove is opened at the upper end of the separation barrel 11, and a linkage gear ring 50 with an L-shaped cross-section is rotatably arranged in the limit groove, and the linkage gear ring 50 can rotate in the limit groove.

[0072] The L-shaped cross section of the linkage gear ring 50 is also provided with a plurality of teeth distributed along its axis, that is, a tooth groove is provided on the inner side of the linkage gear ring 50, and the inner wall of the L-shaped cross section is also provided with teeth.

[0073] A structural groove having one end connected to the limit groove is provided in the separation barrel 11, and a linkage shaft 51 is rotatably arranged in the structural groove, and one side of the linkage shaft 51 is located in the limit groove and connected to the inner wall of the linkage gear ring 50 through gear transmission. That is, when the linkage gear ring 50 rotates, it can drive the linkage shaft 51 to rotate through its internal teeth through gear transmission.

[0074] A rotating groove 52 which is interlinked with the structural groove and has a ring-shaped cross-section is also provided in the separation barrel 11, and a linkage ring 53 is rotatably arranged in the rotating groove 52. The lower end of the linkage shaft 51 extends into the rotating groove 52 and is connected to the outer side of the linkage ring 53 by gear transmission, and the linkage ring 53 corresponds to the annular ring 22. Electromagnets (not shown) are installed in the linkage ring 53 and the annular ring 22. When the linkage shaft 51 rotates, the linkage ring 53 can be driven to rotate by gear transmission. When the material storage frame 12 is located at the bottom of the separation barrel 11, the annular ring 22 corresponds to the linkage ring 53. Therefore, when the linkage ring 53 rotates, the annular ring 22 can be driven to rotate by the electromagnets inside it and in the annular ring 22.

[0075] A support frame 54 is also provided on the outside of the main frame 19, and an arc-shaped rack 55 is provided on the upper end of the support frame 54. The arc-shaped rack 55 corresponds to the teeth on the upper end of the linkage gear ring 50, that is, when the bending plate 18 drives the main frame 19 to move into the separation barrel 11, the support frame 54 will drive the arc-shaped rack 55 to engage with the gear groove on the inner side of the linkage gear ring 50, and when the linkage gear ring 50 rotates, the main frame 19 can be driven to rotate under the limit of the corresponding ring groove through the arc-shaped rack 55 and the support frame 54, and after the rotation is completed, the support frame 54 and the arc-shaped rack 55 will be driven by the main frame 19 to rotate to the initial position, so it will not interfere with the swinging path of the main frame 19.

[0076] A linkage screw rod 56 is rotatably arranged in the groove at the keyway connection between the limit frame 20 and the separation barrel 11, and the linkage screw rod 56 is threadedly connected to the key at the keyway connection, and the bottom of the linkage screw rod 56 is rotatably connected to the bottom wall of the keyway, and a ratchet piece 57 is sleeved on the side of the linkage screw rod 56 facing the linkage gear ring 50, and the linkage screw rod 56 is connected to the inner wall of the linkage gear ring 50 through the ratchet piece 57, that is, when the linkage gear ring 50 rotates counterclockwise, the linkage screw rod 56 can be driven to rotate by the ratchet piece 57, so that the linkage screw rod 56 can drive the limit frame 20 to move in the up and down directions through the key at the keyway matching position on the limit frame 20, and the thread on the outer side of the linkage screw rod 56 is bidirectional, so when the limit frame 20 moves to the top of the separation barrel 11, it will return again and make reciprocating motion.

[0077] When the linkage gear ring 50 rotates clockwise, the linkage gear ring 50 at this time will drive the linkage shaft 51 to rotate clockwise because its inner wall is meshed with the linkage shaft 51 through gear transmission. Since the linkage shaft 51 is meshed with the outer side of the linkage ring 53 through gear transmission, it will drive the linkage ring 53 to rotate counterclockwise, that is, at this time, the linkage ring 53 indirectly drives the annular ring 22 to rotate counterclockwise, and when the arc rack 55 is meshed with the upper side of the linkage gear ring 50, since it rotates clockwise at this time, it will also drive the main frame 19 to rotate clockwise, so that the main frame 19 can drive the storage frame 12 to rotate counterclockwise through the sliding shaft 33 and the conical cover 13, and finally realize the inconsistency of the rotation direction of the stirring shaft 21 on the inner wall of the storage frame 12 and the stirring shaft 21 on the support frame 23, thereby further improving the stirring effect.

[0078] Example 3: Reference Fig.17As shown, on the basis of the first and second embodiments, in order to be able to discharge the water in the separation barrel 11 in advance so that the operator can directly separate the grease residue in the storage frame 12, a plugging component 6 is provided on the outside of the separation barrel 11; specifically, the plugging component 6 includes an arc groove 60 and a plugging ring 61, and several arc grooves 60 are evenly arranged on the outer wall of the separation barrel 11 along the axis thereof. The separation barrel 11 is also threadedly provided with a plugging ring 61 with a ring-shaped cross section, and the plugging ring 61 is used to seal the arc groove 60 in the initial state. The groove 60 is blocked. When the water in the separation barrel 11 needs to be discharged separately, the sealing ring 61 is driven to rotate by external force, so that the sealing ring 61 rises and no longer blocks the arc groove 60. At this time, the water in the separation barrel 11 can be discharged to the outside of the separation barrel 11 through the arc groove 60, and then the sealing plate 15 is opened to take out the grease residue in the storage frame 12, so as to avoid the water in the separation barrel 11 directly flowing out from the bottom of the storage frame 12 through the through hole 14 when the sealing plate 15 is opened and mixing with the grease residue.

[0079] Example 4: Reference Fig.18 As shown, on the basis of Example 1, Example 2 and Example 3, in order to be able to drive the bending plate 18, the linkage gear ring 50 and the sealing ring 61 to work respectively, a driving unit 7 is arranged on the base plate 1; specifically, the driving unit 7 includes a driving screw 70, a driving gear 71, a driving gear ring 72, a sealing gear ring 73, a driving cylinder 74, a driving motor 75 and a transmission gear 76. The driving screw 70 is rotatably arranged in the extension frame plate 17 and is threadedly connected to one side of the bending plate 18. A driving gear 71 is sleeved on the outer side of the driving screw 70. The driving screw 70 can be driven by the driving gear 71 to rotate, and when rotating, it can drive the bending plate 18 to move up and down in the extension frame plate 17, so as to drive the main frame 19 to move.

[0080] A driving gear ring 72 is also provided at the upper end of the linkage gear ring 50. When driven, the driving gear ring 72 can drive the linkage gear ring 50 to rotate, so as to drive the limit frame 20, the storage frame 12, the main frame 19 and the annular ring 22 to operate; and a blocking gear ring 73 is provided on the outer side of the sealing ring 61, and the heights of the driving gear 71, the driving gear ring 72 and the blocking gear ring 73 are inconsistent.

[0081] A driving cylinder 74 is provided on the base plate 1 through a cylinder seat, and a driving motor 75 is installed on the telescopic end of the driving cylinder 74 through a motor seat. A transmission gear 76 is sleeved on the outer side of the output shaft of the driving motor 75, and the transmission gear 76 corresponds to the driving gear 71, the driving ring gear 72 and the blocking ring gear 73. The driving cylinder 74 can drive the driving motor 75 to move in the up and down directions, and the driving motor 75 can drive the transmission gear 76 to rotate. Furthermore, the driving motor 75 is driven to different heights by the driven cylinder 74, that is, it can be meshed with the driving gear 71, the driving ring gear 72 and the blocking ring gear 73 through the transmission gear 76 respectively, and drive the driving gear 71, the driving ring gear 72 and the blocking ring gear 73 to rotate through the transmission gear 76 alone.

[0082] It is obvious 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0083] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage separation and purification device for waste oil, characterized in that: It comprises a separation barrel (11) which is connected from top to bottom, a limit frame (20) is slidably provided in the separation barrel (11), a material storage frame (12) is rotatably provided in the limit frame (20), a conical cover (13) and a blocking plate (15) are hingedly connected at the upper and lower sides of the material storage frame (12) via torsion springs, and the conical cover (13) has a plurality of through holes (14); A water inlet pipe (16) passes through one side of the separation barrel (11), a stirring assembly (2) is arranged in the material storage frame (12), a main frame (19) is arranged above the separation barrel (11), a cooling plate is arranged in the main frame (19), the cooling plate arranged in the main frame (19) extends into the separation barrel (11) to condense the grease, and a heating plate is arranged in the separation barrel (11) to accelerate the decomposition of the grease.

2. A waste oil multi-stage separation and purification device according to claim 1, characterized in that: The limit frame (20) is slidably arranged in the separation barrel (11) by means of keyway engagement. The stirring assembly (2) comprises a plurality of longitudinally arranged stirring shafts (21) arranged on the inner wall of the material storage frame (12) along the axis thereof. The inner wall of the material storage frame (12) is provided with an annular groove, and an annular ring (22) rotates in the annular groove.

3. A waste oil multi-stage separation and purification device according to claim 2, characterized in that: A support frame (23) is provided on the inner wall of the annular ring (22), and a middle portion of the support frame (23) extends to the middle portion of the material storage frame (12), and a plurality of stirring shafts (21) are also provided along the axis thereof, and the stirring shafts (21) are staggered with the remaining stirring shafts (21).

4. A waste oil multi-stage separation and purification device according to claim 1, characterized in that: A water inlet groove (24) corresponding to the end of the water inlet pipe (16) is formed on one side of the limiting frame (20), and a plurality of strip grooves (25) distributed along the axis of the material storage frame (12) are formed on the inner side thereof.

5. A waste oil multi-stage separation and purification device according to claim 1, characterized in that: The invention comprises a bottom plate (1) and support columns (10), wherein the support columns (10) are arranged on the bottom plate (1), the separation barrel (11) is arranged between the support columns (10), an extension frame plate (17) is arranged at the upper end of the support column (10) on one side, a bending plate (18) is slidably arranged inside the extension frame plate (17), and a main frame (19) is arranged at the lower end of the bending plate (18); An annular groove with an L-shaped cross section is provided on the main frame (19), and an L-arc plate (31) located in the annular groove is provided on the side of the bent plate (18) facing the main frame (19). A collecting component (3) for collecting grease is provided in the main frame (19), and the collecting component (3) includes a plurality of sliding cavities (32) provided in the main frame (19).

6. A waste oil multi-stage separation and purification device according to claim 5, characterized in that: A circular groove is formed on the inner wall of the sliding cavity (32), a sliding shaft (33) is slidably arranged in the sliding cavity (32), a circular plate (34) located in the circular groove is arranged outside the sliding shaft (33), and a push spring (35) is arranged between the circular plate (34) and the circular groove.

7. A waste oil multi-stage separation and purification device according to claim 5, characterized in that: A C-shaped frame (40) is provided on one side support column (10), and a scraping assembly (4) for scraping off grease is provided on the C-shaped frame (40), and the scraping assembly (4) comprises a swing plate (41) hinged on the C-shaped frame (40) via a torsion spring, and the swing plate (41) is inclined in the direction of the main frame (19).

8. The waste oil multi-stage separation and purification device according to claim 5, characterized in that: The L-arc plate (31) is hinged to the bent plate (18) via a torsion spring.

9. A waste oil multi-stage separation and purification device according to claim 7, characterized in that: A conveyor belt mechanism (42) is mounted on the swing plate (41), and a scraper plate (43) in contact with the outer side of the conveyor belt mechanism (42) is arranged between the extension sections on both sides of the U-shaped frame (40).

10. A method for multi-stage separation and purification of waste oil, using a multi-stage separation and purification device for waste oil as claimed in any one of claims 1 to 9, characterized in that: The separation method comprises the following steps: S1, pouring grease: the limiting frame (20) slides to the upper side of the separation barrel (11), the conical cover (13) is opened, the waste grease is poured into the storage frame (12), and the limiting frame (20) is driven to move to the bottom of the separation barrel (11); S2, adding water for stirring: water is poured into the separation barrel (11) through the water inlet pipe (16), the limit frame (20) blocks the bottom of the separation barrel (11), so that the separation barrel (11) stores water, part of the water enters the storage frame (12) through the through hole (14), and the stirring component (2) is started to stir the waste oil; S3, preheating and temperature control: the waste grease is mixed with water after stirring and enters the separation barrel (11) through the through hole (14), the residue in the waste grease is blocked by the through hole (14), and the heating plate heats the water so that the grease is fully mixed in the water; S4, cooling and separation: standing still, the tiny residues in the water are precipitated, the bending plate (18) drives the main frame (19) to descend into the water, the heating plate stops heating the water, the cooling plate cools the lower end surface of the main frame (19), the grease condenses on the bottom of the main frame (19) when it is cold, and the main frame (19) rises to remove the grease; S5, oil type distinction: according to the condensation temperature of animal oil and vegetable oil, adjust the corresponding temperature of the cooling plate to extract animal and vegetable oils separately.

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