Kitchen waste size mixing and impurity removing equipment and impurity removing method

Abstract

The invention discloses kitchen waste size mixing and impurity removing equipment and an impurity removing method, and relates to the technical field of kitchen waste treatment.The kitchen waste size mixing and impurity removing equipment comprises a supporting frame and an outer shell fixedly arranged on the supporting frame, a main shaft is fixedly and rotationally arranged on the outer shell, and a spiral feeding paddle and crushing blades are fixedly arranged on the main shaft; two grinding rollers are arranged, when the screen drum rotates, a fourth belt wheel drives the grinding rollers to rotate through a third belt wheel, the grinding rollers and the screen drum rotate at the same time, garbage is extruded when passing through the space between the grinding rollers and the screen drum, and when a large amount of garbage adheres to the inner wall of the screen drum or the size of the garbage is large, the garbage can be crushed. And it is guaranteed that garbage can be extruded and ground while the grinding rollers slide, water in the garbage can be extruded out, the situation that due to excessive water, the garbage adheres to the inner wall of the screen drum, and screen holes are blocked is avoided, the crushing blades are matched, the garbage is extruded and then crushed, and the garbage crushing efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen waste treatment, and in particular to kitchen waste slurry mixing and impurity removal equipment and an impurity removal method. Background Art

[0002] At present, one of the ways to deal with food waste is to sort it first, remove the large materials, and then let the remaining materials enter the pulping machine for pulping. The materials enter the crushing chamber of the pulping machine from the feed port, and are crushed and transported to the discharge port under the action of the pendulum set by the spiral. The crushed organic matter passes through the screen and falls into the discharge trough at the bottom. The light materials such as fibers and plastics that have not been crushed are transported to the discharge port under the action of the pendulum of the spiral and discharged from the discharge port.

[0003] Since the kitchen waste contains vegetable leaves, leftovers, leftover rice, fruit peels, egg shells, tea residue, bones and other materials, it contains high water content, and also contains egg liquid and sugar. This will cause the kitchen waste to become sticky before it is completely crushed, causing it to stick to the inner wall of the screen drum, which not only affects the crushing efficiency of the kitchen waste, but also causes the screen drum to become blocked. Summary of the invention

[0004] The object of the present invention is to provide a food waste slurry mixing and impurity removal device and impurity removal method to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A kitchen waste slurry mixing and impurity removal device comprises a support frame and an outer shell fixedly arranged on the support frame, a main shaft is fixedly and rotatably arranged on the outer shell, and a spiral feeding paddle and a crushing blade are fixedly arranged on the main shaft; A fixing ring is fixedly arranged on the outer shell, and screen cylinders are rotatably arranged on both sides of the fixing ring, and the two screen cylinders are rotatably connected to the outer shell; It also includes two rolling rollers, the rolling rollers are arranged inside the screen drum, a fixed shell is fixedly arranged on the outer shell, a sliding shell is rotatably arranged on one end of the rolling roller, the sliding shell is slidably connected to the fixed shell, and a balance bar is rotatably arranged on the other end of the rolling roller, the balance bar is slidably connected to the outer shell; The third pulley is fixedly provided on the rolling roller, the fourth pulley is rotatably provided on the fixed shell, a straight groove is provided on the sliding shell, a tensioning rod is slidably provided on the straight groove, a tensioning belt is transmitted between the third pulley and the fourth pulley, the tensioning belt passes around the tensioning rod, an inclined groove is provided on the fixed shell, and the tensioning rod is slidably provided in the inclined groove; It also includes a lifting component, which is used to scrape off the garbage adhering to the inner wall of the screen cylinder and make it contact with the crushing blades.

[0006] Preferably, a plurality of second springs are arranged between the sliding shell and the fixed shell, and two ends of the plurality of second springs are fixedly connected to the sliding shell and the fixed shell respectively.

[0007] Preferably, a gear ring is fixedly provided on the screen drum, a first gear is fixedly provided on one of the fourth pulleys, and the first gear is meshed with the gear ring for transmission; A second gear is fixedly arranged on the other fourth pulley, a third gear is rotatably arranged on the outer shell, the third gear is meshed with the second gear for transmission, and the third gear is meshed with the gear ring for transmission.

[0008] Preferably, a driven shaft is rotatably provided on the outer shell, and two driving gears are fixedly provided on the driven shaft, and the two driving gears correspond to the two gear rings one by one and mesh with each other for transmission.

[0009] Preferably, the lifting assembly includes a supporting plate slidably arranged on a fixed ring, a hollow rod is rotatably arranged on the supporting plate, a reciprocating screw is fixedly arranged on the driven shaft, a reciprocating block is threadedly arranged on the reciprocating screw, a telescopic rod is rotatably arranged on the reciprocating block, and the telescopic rod is slidably connected to the hollow rod.

[0010] Preferably, a plurality of first springs are arranged between the telescopic rod and the hollow rod, and two ends of the first springs are fixedly connected to the telescopic rod and the hollow rod respectively.

[0011] Preferably, a brush corresponding to the screen drum is fixedly provided on the outer shell, a driven gear is fixedly provided on the brush, and the driven gear is meshed with a gear ring for transmission.

[0012] Preferably, a plurality of scrapers are fixedly provided on the fixing ring, and the plurality of scrapers are all in contact with the inner wall of the screen drum.

[0013] Preferably, two driving gears are fixedly arranged on the driven shaft, and the two driving gears correspond to the two gear rings one by one and mesh with each other for transmission; The driven shaft is fixedly provided with a second pulley, the main shaft is fixedly provided with a first pulley, and a linkage belt is provided between the first pulley and the second pulley for transmission; A driving motor is fixedly arranged on the outer shell, and a motor shaft of the driving motor is fixedly connected to the main shaft.

[0014] A method for pulping and removing impurities from kitchen waste is completed by the above-mentioned kitchen waste pulping and removing impurities device, and the method for pulping and removing impurities from kitchen waste comprises the following steps: S1: Sorting the non-degradable organic and inorganic substances contained in the kitchen waste; S2: crushing and squeezing the sorted food waste to obtain slurry; S3: Remove sand and impurities, remove sand or light objects in the slurry; S4: three-phase centrifugation to separate the slurry into water phase, oil phase and slag phase; S5: The separated water phase material is subjected to anaerobic fermentation, the oil phase material is used as a raw material for biodiesel production, and the residue phase material is used for composting.

[0015] In the above technical scheme, the kitchen waste slurry mixing and impurity removal equipment and impurity removal method provided by the present invention have the beneficial effects of: 1. By setting two rolling rollers, when the screen drum rotates, the fourth pulley drives the rolling roller to rotate through the third pulley, so that the rolling roller and the screen drum rotate at the same time. When the garbage passes between the rolling roller and the screen drum, the garbage is squeezed, and when there is a lot of garbage adhering to the inner wall of the screen drum or the garbage volume is large, the tensioning rod slides through the cooperation of the inclined groove and the straight groove, and the tensioning belt is compensated, ensuring that the rolling roller can squeeze and grind the garbage while sliding, which is beneficial to squeeze out the water in the garbage, prevent the garbage from having too much water affecting the crushing efficiency, and prevent the garbage from adhering to the inner wall of the screen drum due to excessive water, causing the screen hole to be blocked, and cooperate with the crushing blades to squeeze and crush the garbage, which can effectively improve the efficiency of garbage crushing.

[0016] 2. Through the lifting component, when the screen drum rotates, the garbage adhering to the inner wall of the screen drum is intermittently scraped off and lifted to the bottom of the crushing blades to facilitate its crushing, effectively preventing the garbage from being attached to the inner wall of the screen drum due to the centrifugal force and affecting its crushing efficiency.

[0017] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0018] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention; Figure 2 A side cross-sectional view of an outer shell provided by an embodiment of the present invention; Figure 3 The embodiment of the present invention provides Figure 2 A in the enlarged view; Figure 4 A schematic diagram of the screen drum structure provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a lifting assembly provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a rolling roller provided in an embodiment of the present invention; Figure 7 A cross-sectional view of a sliding shell and a fixed shell provided for an embodiment of the present invention; Figure 8 An exploded view of the sliding shell and the fixed shell structure provided by an embodiment of the present invention; Fig. 9 A schematic diagram of a fixing ring structure provided in an embodiment of the present invention; Fig.10 A schematic diagram of the rotation direction of the screen drum and the rolling roller provided in an embodiment of the present invention.

[0021] Description of reference numerals: 1. Support frame; 11. Outer shell; 12. Feed inlet; 13. Slurry outlet; 14. Slag outlet; 15. Driving motor; 2. Main shaft; 21. Screw feeding paddle; 22. Crushing blade; 23. First pulley; 24. Linkage belt; 3. Driven shaft; 31. Driving gear; 32. Reciprocating screw; 33. Reciprocating block; 34. Telescopic rod; 35. First spring; 36. Second pulley; 4. Fixed ring; 41. Scraper; 42, support plate; 43, hollow rod; 5, screen drum; 51, gear ring; 6, brush; 61, driven gear; 7, rolling roller; 71, sliding shell; 72, third pulley; 73, tensioning belt; 74, second spring; 75, straight groove; 76, tensioning rod; 77, balance rod; 8, fixed shell; 81, fourth pulley; 82, inclined groove; 83, first gear; 84, second gear; 85, third gear. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the technical solution clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0023] Please refer to 1-10, a kitchen waste slurry mixing and impurity removal equipment, including a support frame 1 and an outer shell 11 fixedly arranged on the support frame 1, a main shaft 2 is fixedly and rotatably arranged on the outer shell 11, and a spiral feeding paddle 21 and a crushing blade 22 are fixedly arranged on the main shaft 2; a fixed ring 4 is fixedly arranged on the outer shell 11, and screen cylinders 5 are rotatably arranged on both sides of the fixed ring 4, and the two screen cylinders 5 are rotatably connected to the outer shell 11; it also includes two rolling rollers 7, the rolling roller 7 is arranged inside the screen cylinder 5, a fixed shell 8 is fixedly arranged on the outer shell 11, one end of the rolling roller 7 is rotatably arranged with a sliding shell 71, the sliding shell 71 is slidably connected to the fixed shell 8, and the other end of the rolling roller 7 is rotatably arranged with a balance bar 77, and the balance bar 77 is connected to the outer shell The shell 11 is slidably connected; a third pulley 72 is fixedly provided on the rolling roller 7, a fourth pulley 81 is rotatably provided on the fixed shell 8, a straight groove 75 is provided on the sliding shell 71, a tensioning rod 76 is slidably provided on the straight groove 75, a tensioning belt 73 is transmitted between the third pulley 72 and the fourth pulley 81, the tensioning belt 73 passes around the tensioning rod 76, an inclined groove 82 is provided on the fixed shell 8, and the tensioning rod 76 is slidably provided in the inclined groove 82; it also includes a lifting assembly, which is used to scrape off the garbage adhered to the inner wall of the screen drum 5 and make it contact with the crushing blades 22. When the main shaft 2 rotates, it drives the spiral feeding slurry and the crushing blades 22 to rotate, and the spiral feeding paddle 21 is used to remove the garbage at the feed inlet 12 The garbage is sent into the screen drum 5, and the crushing blades 22 are used to crush and beat the garbage. By setting the rolling roller 7, when the screen drum 5 is rotating, the transmission between the fourth pulley 81, the tensioning belt 73 and the third pulley 72 drives the rolling roller 7 to rotate at the same time, so that the rolling roller 7 cooperates with the screen drum 5 to squeeze and grind the garbage adhered to the inner wall of the screen drum 5, thereby improving the pulping efficiency of the garbage. When a large volume of garbage or debris is adhered to the inner wall of the screen drum 5, it will slide in the opposite direction when squeezing the garbage, and drive the sliding shell 71 to slide. When the sliding shell 71 slides, the straight groove 75 and the inclined groove 82 are misaligned. Under the misalignment of the straight groove 75 and the inclined groove 82, the tension rod 76 When sliding downward and loosening the tension belt 73, the distance between the third pulley 72 and the fourth pulley 81 increases, the transmission can still be carried out through the tension belt 73, so that when the rolling roller 7 encounters large-volume garbage, it can not only slide and adapt, but also squeeze and grind the garbage while sliding, avoiding the phenomenon that when large-volume or large amount of garbage adheres to the inner wall of the screen drum 5, it is difficult to crush and squeeze the slurry. In addition, the rolling roller 7 is provided with concave lines, which can effectively squeeze out the water in the garbage when squeezing the garbage, reduce the garbage due to high water content Adhesion to the inner wall of the screen drum 5, affecting the garbage crushing and slurrying efficiency, and the easy clogging of the screen drum 5;At the same time, a lifting assembly is provided. When the screen drum 5 rotates, the garbage adhering to the inner wall of the screen drum 5 can be effectively scraped off, and the scraped garbage is sent to the position of the crushing blade 22, thereby improving the crushing efficiency of the garbage. The two screen drums 5 are respectively provided on both sides of the fixing ring 4, and the two screen drums 5 are not connected. One end of the screen drum 5 is rotatably connected to the fixing ring 4, and the other end is rotatably connected to the outer shell 11. In short, the garbage first passes through one screen drum 5, and then passes through the fixing ring 4 located between the two screen drums 5 before entering the other screen drum 5. ;

[0024] Specifically, a plurality of second springs 74 are arranged between the sliding shell 71 and the fixed shell 8, and the two ends of the plurality of second springs 74 are fixedly connected to the sliding shell 71 and the fixed shell 8 respectively. Under the action of larger garbage, the crushing roller 7 slides to extend the second spring 74, and under the action of the rebound force of the second spring 74, the crushing roller 7 can better squeeze out the excess water in the garbage when rotating, and after the large volume of garbage is squeezed, the crushing roller 7 is reset when the second spring 74 rebounds.

[0025] In an embodiment further provided by the present invention, a gear ring 51 is fixedly provided on the screen drum 5, wherein a first gear 83 is fixedly provided on one of the fourth pulleys 81, and the first gear 83 is meshed with the gear ring 51 for transmission; a second gear 84 is fixedly provided on the other fourth pulley 81, and a third gear 85 is rotatably provided on the outer shell 11, and the third gear 85 is meshed with the second gear 84 for transmission, and the third gear 85 is meshed with the gear ring 51 for transmission, and the screen drum 5 drives the first gear 83 to rotate through the gear ring 51, thereby rotating the rolling roller 7 on the corresponding side through the transmission of the fourth pulley 81, the tensioning belt 73 and the third pulley 72; the screen drum 5 drives the third gear 85 to rotate through the gear ring 51, turns and drives the second gear 84 to rotate through the third gear 85, thereby driving the rolling roller 7 on the corresponding side to rotate through the transmission of the fourth pulley 81, the tensioning belt 73 and the third pulley 72; the rotation direction of the rolling roller 7 is as shown in FIG. Fig.10 As shown, when the screen drum 5 rotates clockwise, the rolling roller 7 on the side of the first gear 83 rotates counterclockwise, and the rolling roller 7 on this side mainly squeezes the garbage on the inner wall of the screen drum 5, and the rolling roller 7 on the side of the second gear 84 and the third gear 85 rotates clockwise, and the rolling roller 7 on this side mainly grinds the garbage on the inner wall of the screen drum 5.

[0026] Furthermore, a driven shaft 3 is rotatably provided on the outer shell 11, and two driving gears 31 are fixedly provided on the driven shaft 3. The two driving gears 31 correspond to the two gear rings 51 one by one and mesh with each other for transmission. When the driven shaft 3 rotates, the meshing of the driving gears 31 and the gear rings 51 drives the screen drum 5 to rotate, so that after the garbage is crushed, squeezed and pulped inside the screen drum 5, it can be better discharged, thereby improving the pulping efficiency of the garbage.

[0027] Furthermore, the lifting assembly includes a supporting plate 42 slidably arranged on the fixed ring 4, a hollow rod 43 is rotatably arranged on the supporting plate 42, a reciprocating screw 32 is fixedly arranged on the driven shaft 3, a reciprocating block 33 is threadedly arranged on the reciprocating screw 32, a telescopic rod 34 is rotatably arranged on the reciprocating block 33, and the telescopic rod 34 is slidably connected to the hollow rod 43. When the driven shaft 3 rotates, the reciprocating block 33 reciprocates, and the reciprocating block 33 is reciprocated through the telescopic rod 34 and the hollow rod 43. When the block 33 slides, the supporting plate 42 is raised and lowered. When the supporting plate 42 descends to the bottom and fits the screen drum 5, the garbage adhering to the screen drum 5 is scraped off, and the scraped garbage is pushed onto the supporting plate 42 under the rotation of the screen drum 5. When the supporting plate 42 rises, the garbage comes into contact with the crushing blades 22 for crushing. This can not only better scrape off the garbage adhering to the inner wall of the screen drum 5, but also improve its crushing efficiency.

[0028] In an embodiment further provided by the present invention, a plurality of first springs 35 are arranged between the telescopic rod 34 and the hollow rod 43, and the two ends of the first spring 35 are fixedly connected to the telescopic rod 34 and the hollow rod 43 respectively. When the reciprocating screw 32 rotates, the reciprocating block 33 slides, and the first spring 35 is squeezed first. At this time, the supporting plate 42 is still in contact with the screen cylinder 5, and the garbage on the inner wall of the screen cylinder 5 is scraped off. After the first spring 35 is compressed to a certain extent, the reciprocating block 33 can push the telescopic rod 34 and the hollow rod 43 to rotate, and move the supporting plate 42 upward. When at the top, the reciprocating block 33 is located in the middle of the reciprocating screw 32. At this time, the reciprocating screw 32 continues to rotate, and the reciprocating block 33 continues to slide, so that the supporting plate 42 moves down. After the supporting plate 42 moves down to contact with the screen cylinder 5, the reciprocating block 33 continues to slide to reset the spring, and after the reciprocating block 33 slides to one end of the reciprocating screw 32, they slide against each other. Similarly, the first spring 35 is compressed first, and then the supporting plate 42 is moved up, so that the supporting plate 42 has enough time to fit with the inner wall of the screen cylinder 5 to scrape off the garbage on the inner wall of the screen cylinder 5.

[0029] In the embodiment provided by the present invention, a brush 6 corresponding to the sieve drum 5 is fixedly provided on the outer shell 11, and a driven gear 61 is fixedly provided on the brush 6. The driven gear 61 is meshed with the ring gear 51 for transmission. When the sieve drum 5 rotates, the driven gear 61 is driven to rotate through the ring gear 51, so that when the sieve drum 5 rotates, the brush 6 rotates in the opposite direction to it. During this process, the bristles of the brush 6 will be inserted into the sieve holes of the sieve drum 5 to avoid blockage of the sieve holes.

[0030] Specifically, a plurality of scrapers 41 are fixedly provided on the fixed ring 4, and the plurality of scrapers 41 are all in contact with the inner wall of the screen cylinder 5. When the support plate 42 is rising through the scrapers 41, the missed garbage is still adhered to the screen cylinder 5. When passing the top, it is scraped off by the scrapers 41 and falls directly onto the crushing blades 22, thereby improving the crushing efficiency of the garbage.

[0031] In the solution further provided by the present invention, two driving gears 31 are fixedly provided on the driven shaft 3, and the two driving gears 31 correspond to the two gear rings 51 one by one and are meshed for transmission; a second pulley 36 is fixedly provided on the driven shaft 3, and a first pulley 23 is fixedly provided on the main shaft 2, and a linkage belt 24 is transmitted between the first pulley 23 and the second pulley 36; a driving motor 15 is fixedly provided on the outer shell 11, and the motor shaft of the driving motor 15 is fixedly connected to the main shaft 2. After the driving motor 15 is started, it drives the main shaft 2 to rotate, and the main shaft 2 rotates through the transmission action of the first pulley 23, the linkage belt 24 and the second pulley 36, and the driven shaft 3 rotates through the meshing of the driving gear 31 and the gear ring 51, and drives the rolling roller 7 to rotate through the gear ring 51.

[0032] A method for pulping and removing impurities from kitchen waste is completed by the above-mentioned kitchen waste pulping and removing impurities device, and the method for pulping and removing impurities from kitchen waste comprises the following steps: S1: Sorting the non-degradable organic and inorganic substances contained in the kitchen waste; S2: crushing and squeezing the sorted food waste to obtain slurry; S3: Remove sand and impurities, remove sand or light objects in the slurry; S4: three-phase centrifugation to separate the slurry into water phase, oil phase and slag phase; S5: The separated water phase material is subjected to anaerobic fermentation, the oil phase material is used as a raw material for biodiesel production, and the residue phase material is used for composting.

[0033] Working principle: When the garbage is crushed and pulped, the garbage is poured into the feed port 12, and the drive motor 15 is started. Under the transmission action of the first pulley 23, the second pulley 36 and the linkage belt 24, the main shaft 2 and the driven shaft 3 rotate at the same time, the main shaft 2 drives the spiral feeding paddle 21 to feed, and the crushing blade 22 rotates to crush and beat the garbage. The driven shaft 3 rotates, and the screen drum 5 is driven to rotate through the driving gear 31. When the screen drum 5 rotates, the first gear 83 on one side is driven to rotate through the gear ring 51, and the first gear 83 is driven through the fourth pulley 81, the tension belt 73 and the third pulley 72, so that the rolling roller 7 is rotated. The gear ring 51 rotates, and at the same time, the gear ring 51 drives the third gear 85 on the other side to rotate the second gear 84, so that the rolling roller 7 on the other side rotates, so that the rolling rollers 7 on both sides rotate with the screen drum 5 at the same time, and the rolling rollers 7 squeeze and grind the garbage adhered to the screen drum 5 to make pulp; when the screen drum 5 and the gear ring 51 rotate, the gear ring 51 drives the driven gear 61 to rotate, so that the brush 6 rotates in the opposite direction with the rotation of the screen drum 5, and the bristles on the brush 6 will be inserted into the sieve holes of the screen drum 5 to clean the garbage remaining in the sieve holes to prevent the sieve holes from being blocked; when the driven shaft 3 rotates, the reciprocating screw 32 set on the driven shaft 3 drives the driven gear 61 to rotate in the opposite direction. The double block 33 slides and first squeezes the first spring 35. At this time, the supporting plate 42 fits the inner wall of the screen drum 5 to scrape off the garbage stuck on the inner wall of the screen drum 5, and under the rotation of the screen drum 5, the scraped garbage is pushed onto the supporting plate 42. After the first spring 35 is squeezed to a certain extent, the telescopic rod 34 pushes the hollow rod 43 to make the supporting plate 42 rise. After the supporting plate 42 rises, the garbage on the supporting plate 42 contacts with the crushing blades 22 and is crushed and beaten by the crushing blades 22, thereby improving the crushing efficiency of the garbage. When there is large or more garbage stuck on the inner wall of the screen drum 5, the rolling roller 7 drives the sliding shell 71 to slide, and the first spring 35 is pressed to a certain extent. The second spring 74 is extended to allow the rolling roller 7 to slide and adapt to larger garbage. When the sliding shell 71 slides, the tensioning rod 76 is retracted under the action of the inclined groove 82 and the straight groove 75, and the tensioning belt 73 is appropriately relaxed. When the sliding shell 71 slides with the rolling roller 7, the fourth pulley 81 can still use the tensioning belt 73 to make the third pulley 72 rotate with the rolling roller 7, so that when larger or more garbage is adhered to the inner wall of the screen drum 5, it can still be extruded and ground. The slurry after crushing and squeezing is sieved from the sieve holes of the screen drum 5 and discharged from the slurry outlet 13, and the material that cannot be crushed is discharged from the slag outlet 14.

[0034] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A kitchen waste slurry mixing and impurity removal device, comprising a support frame (1) and an outer shell (11) fixedly arranged on the support frame (1), characterized in that: A main shaft (2) is fixedly and rotatably arranged on the outer shell (11), and a spiral feeding paddle (21) and a crushing blade (22) are fixedly arranged on the main shaft (2); A fixing ring (4) is fixedly arranged on the outer shell (11), and screen cylinders (5) are rotatably arranged on both sides of the fixing ring (4), and the two screen cylinders (5) are both rotatably connected to the outer shell (11). The two screen cylinders (5) are respectively arranged on both sides of the fixing ring (4), and the two screen cylinders (5) are not connected, and one end of the screen cylinder (5) is rotatably connected to the fixing ring (4), and the other end is rotatably connected to the outer shell (11); It also includes two rolling rollers (7), the rolling rollers (7) being arranged inside the screen drum (5), a fixed shell (8) being fixedly arranged on the outer shell (11), a sliding shell (71) being rotatably arranged at one end of the rolling roller (7), the sliding shell (71) being slidably connected to the fixed shell (8), and a balancing rod (77) being rotatably arranged at the other end of the rolling roller (7), the balancing rod (77) being slidably connected to the outer shell (11); The rolling roller (7) is fixedly provided with a third pulley (72), the fixed shell (8) is rotatably provided with a fourth pulley (81), the sliding shell (71) is provided with a straight groove (75), a tensioning rod (76) is slidably provided on the straight groove (75), a tensioning belt (73) is transmitted between the third pulley (72) and the fourth pulley (81), the tensioning belt (73) bypasses the tensioning rod (76), the fixed shell (8) is provided with an inclined groove (82), and the tensioning rod (76) is slidably provided in the inclined groove (82); It also includes a lifting assembly, which is used to scrape off garbage adhering to the inner wall of the screen cylinder (5) and make it contact with the crushing blades (22).

2. The kitchen waste slurry mixing and impurity removal equipment according to claim 1, characterized in that: A plurality of second springs (74) are arranged between the sliding shell (71) and the fixed shell (8), and two ends of the plurality of second springs (74) are respectively fixedly connected to the sliding shell (71) and the fixed shell (8).

3. The kitchen waste slurry mixing and impurity removal equipment according to claim 1, characterized in that: A gear ring (51) is fixedly provided on the screen drum (5), a first gear (83) is fixedly provided on one of the fourth pulleys (81), and the first gear (83) is meshed with the gear ring (51) for transmission; A second gear (84) is fixedly arranged on the other fourth pulley (81), a third gear (85) is rotatably arranged on the outer shell (11), the third gear (85) meshes with the second gear (84) for transmission, and the third gear (85) meshes with the gear ring (51) for transmission.

4. The kitchen waste slurry mixing and impurity removal equipment according to claim 3, characterized in that: A driven shaft (3) is rotatably disposed on the outer shell (11), and two driving gears (31) are fixedly disposed on the driven shaft (3). The two driving gears (31) correspond to the two gear rings (51) one by one and mesh with each other for transmission.

5. The kitchen waste slurry mixing and impurity removal equipment according to claim 4, characterized in that: The lifting assembly comprises a supporting plate (42) slidably arranged on a fixed ring (4), a hollow rod (43) rotatably arranged on the supporting plate (42), a reciprocating screw (32) fixedly arranged on the driven shaft (3), a reciprocating block (33) threadedly arranged on the reciprocating screw (32), a telescopic rod (34) rotatably arranged on the reciprocating block (33), and the telescopic rod (34) is slidably connected to the hollow rod (43).

6. The equipment for preparing slurry and removing impurities from kitchen waste according to claim 5, characterized in that: A plurality of first springs (35) are arranged between the telescopic rod (34) and the hollow rod (43), and two ends of the first springs (35) are fixedly connected to the telescopic rod (34) and the hollow rod (43), respectively.

7. The equipment for preparing slurry and removing impurities from kitchen waste according to claim 3, characterized in that: A brush (6) corresponding to the screen drum (5) is fixedly arranged on the outer shell (11), a driven gear (61) is fixedly arranged on the brush (6), and the driven gear (61) is meshed with the gear ring (51) for transmission.

8. The equipment for preparing slurry and removing impurities from kitchen waste according to claim 1, characterized in that: A plurality of scrapers (41) are fixedly arranged on the fixing ring (4), and the plurality of scrapers (41) are all in contact with the inner wall of the screen cylinder (5).

9. The equipment for preparing slurry and removing impurities from kitchen waste according to claim 4, characterized in that: Two driving gears (31) are fixedly arranged on the driven shaft (3), and the two driving gears (31) correspond to the two gear rings (51) one by one and mesh with each other for transmission; A second pulley (36) is fixedly arranged on the driven shaft (3), a first pulley (23) is fixedly arranged on the main shaft (2), and a linkage belt (24) is arranged for transmission between the first pulley (23) and the second pulley (36); A drive motor (15) is fixedly arranged on the outer shell (11), and a motor shaft of the drive motor (15) is fixedly connected to the main shaft (2).

10. A method for slurrying and removing impurities from kitchen waste, which is accomplished by a kitchen waste slurrying and removing impurities device as claimed in any one of claims 1 to 9, characterized in that: The method for preparing pulp and removing impurities from kitchen waste comprises the following steps: S1: Sorting the non-degradable organic and inorganic substances contained in the kitchen waste; S2: crushing and squeezing the sorted food waste to obtain slurry; S3: Remove sand and impurities, remove sand or light objects in the slurry; S4: three-phase centrifugation to separate the slurry into water phase, oil phase and slag phase; S5: The separated water phase material is subjected to anaerobic fermentation, the oil phase material is used as a raw material for biodiesel production, and the residue phase material is used for composting.

Images