A device and method for adjusting slurry and removing impurities from kitchen waste

Abstract

The present invention discloses a device and method for slurry preparation and impurity removal of kitchen waste, which relates to the technical field of kitchen waste treatment. It includes a support frame and a housing fixedly arranged on the support frame. A main shaft is fixedly and rotatably arranged on the housing, and a spiral feeding paddle and a crushing blade are fixedly arranged on the main shaft. By arranging two rolling rollers, when the sieve cylinder rotates, the fourth belt pulley drives the rolling rollers to rotate through the third belt pulley, so that the rolling rollers and the sieve cylinder rotate simultaneously. When the waste passes between the rolling rollers and the sieve cylinder, the waste is extruded. Moreover, when there is more waste adhered to the inner wall of the sieve cylinder or the volume of the waste is large, it is ensured that while the rolling rollers slide, they can extrude and grind the waste, which is beneficial to squeezing out the water in the waste, preventing the waste from adhering to the inner wall of the sieve cylinder due to excessive water and causing the sieve holes to be blocked. And in cooperation with the crushing blade, the waste is extruded and then broken, which can effectively improve the efficiency of waste crushing.

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 kitchen 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:

[0006] 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;

[0007] 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;

[0008] 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;

[0009] 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;

[0010] It further includes a lifting component, which is used to scrape the garbage adhered to the inner wall of the sieve cylinder and make it contact with the crushing blades.

[0011] Preferably, a plurality of second springs are arranged between the sliding shell and the fixed shell, and both ends of the plurality of second springs are fixedly connected to the sliding shell and the fixed shell respectively.

[0012] Preferably, a toothed ring is fixedly arranged on the sieve cylinder, a first gear is fixedly arranged on one of the fourth pulleys, and the first gear is in meshing transmission with the toothed ring;

[0013] A second gear is fixedly arranged on the other fourth pulley, a third gear is rotatably arranged on the outer shell body, the third gear is in meshing transmission with the second gear, and the third gear is in meshing transmission with the toothed ring.

[0014] Preferably, a driven shaft is rotatably arranged on the outer shell body, two driving gears are fixedly arranged on the driven shaft, and the two driving gears correspond to and are in meshing transmission with the two toothed rings respectively.

[0015] Preferably, the lifting component includes a material supporting plate slidably arranged on a fixed ring, a hollow rod is rotatably arranged on the material supporting plate, a reciprocating lead screw is fixedly arranged on the driven shaft, a reciprocating block is threadedly arranged on the reciprocating lead screw, a telescopic rod is rotatably arranged on the reciprocating block, and the telescopic rod is slidably connected with the hollow rod.

[0016] Preferably, a plurality of first springs are arranged between the telescopic rod and the hollow rod, and both ends of the first springs are fixedly connected to the telescopic rod and the hollow rod respectively.

[0017] Preferably, a brush corresponding to the sieve cylinder is fixedly arranged on the outer shell body, a driven gear is fixedly arranged on the brush, and the driven gear is in meshing transmission with the toothed ring.

[0018] Preferably, a plurality of scraping blades are fixedly arranged on the fixed ring, and the plurality of scraping blades are all attached to the inner wall of the sieve cylinder.

[0019] Preferably, two driving gears are fixedly arranged on the driven shaft, the two driving gears correspond to the two toothed rings respectively, and are in meshing transmission;

[0020] A second pulley is fixedly arranged on the driven shaft, a first pulley is fixedly arranged on the main shaft, and a linkage belt is arranged for transmission between the first pulley and the second pulley;

[0021] A driving motor is fixedly arranged on the outer shell body, and the motor shaft of the driving motor is fixedly connected to the main shaft.

[0022] A method for adjusting the pulp and removing impurities from kitchen waste is completed by the above-mentioned equipment for adjusting the pulp and removing impurities from kitchen waste. The method for adjusting the pulp and removing impurities from kitchen waste includes the following steps:

[0023] S1: Sort the non - degradable organic and inorganic substances contained in the kitchen waste.

[0024] S2: Crush and extrude the sorted kitchen waste to obtain slurry.

[0025] S3: Remove sand and impurities to remove sand - like substances or light floating objects in the slurry.

[0026] S4: Three - phase centrifugation to separate the slurry into aqueous phase substances, oil - phase substances and residue - phase substances.

[0027] S5: Anaerobic fermentation is carried out on the separated aqueous phase substances, the oil - phase substances are used as raw materials for biodiesel products, and the residue - phase substances are used for composting.

[0028] In the above technical solution, the beneficial effects of a kitchen waste pulping and impurity - removing device and an impurity - removing method provided by the present invention are as follows:

[0029] 1. By setting two rolling rollers, when the screen cylinder rotates, the fourth pulley drives the rolling rollers to rotate through the third pulley, so that the rolling rollers and the screen cylinder rotate simultaneously. When the waste passes between the rolling rollers and the screen cylinder, the waste is extruded. And when there is more waste adhered to the inner wall of the screen cylinder or the waste has a large volume, through the cooperation of the inclined groove and the straight groove, the tensioning rod slides, and the tensioning belt is compensated, ensuring that the rolling rollers can extrude and grind the waste while sliding, which is beneficial to squeezing out the water in the waste, preventing the waste with more water from affecting the crushing efficiency, preventing the waste from adhering to the inner wall of the screen cylinder due to excessive water and causing the screen holes to be blocked, and cooperating with the crushing blades to extrude and break the waste again, which can effectively improve the efficiency of waste crushing.

[0030] 2. Through the lifting component, when the screen cylinder rotates, the waste adhered to the inner wall of the screen cylinder is intermittently scraped off and lifted to the bottom of the crushing blades, which is convenient for crushing it, effectively preventing the waste from adhering to the inner wall of the screen cylinder under the action of centrifugal force and affecting its crushing efficiency.

[0031] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0032] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0034] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0035] Figure 2 Side view sectional view of the outer shell provided by the embodiment of the present invention;

[0036] Figure 3 Provided by the embodiment of the present invention Figure 2 Enlarged view of part A in

[0037] Figure 4 Schematic diagram of the sieve cylinder structure provided by the embodiment of the present invention;

[0038] Figure 5 Schematic diagram of the lifting component structure provided by the embodiment of the present invention;

[0039] Figure 6 Schematic diagram of the rolling roller structure provided by the embodiment of the present invention;

[0040] Figure 7 Sectional view of the sliding shell and the fixed shell provided by the embodiment of the present invention;

[0041] Figure 8 Exploded view of the structure of the sliding shell and the fixed shell provided by the embodiment of the present invention;

[0042] Figure 9 Schematic diagram of the fixed ring structure provided by the embodiment of the present invention;

[0043] Figure 10 Schematic diagram of the rotation directions of the sieve cylinder and the rolling roller provided by the embodiment of the present invention.

[0044] Explanation of reference numerals:

[0045] 1. Support frame; 11. Outer housing; 12. Feed inlet; 13. Pulp outlet; 14. Slag discharge port; 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 lead screw; 33. Reciprocating block; 34. Telescopic rod; 35. First spring; 36. Second pulley; 4. Fixed ring; 41. Scraping blade; 42. Material supporting plate; 43. Hollow rod; 5. Sieve cylinder; 51. Tooth 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 implementation manner

[0046] To make the objectives, technical solutions, and advantages of this technical solution clearer, the following will clearly and completely describe the technical solution of the present invention in conjunction with the 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 those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present disclosure.

[0047] 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;Meanwhile, a lifting component is provided. When the screening cylinder 5 rotates, it can effectively scrape the garbage adhered to the inner wall of the screening cylinder 5 and send the scraped garbage to the position of the crushing blades 22, improving the crushing efficiency of the garbage. The two screening cylinders 5 are respectively arranged on both sides of the fixed ring 4 and are not connected. One end of the screening cylinder 5 is rotatably connected to the fixed ring 4, and the other end is rotatably connected to the outer shell 11. Briefly speaking, the garbage first passes through one screening cylinder 5, then passes through the fixed ring 4 located between the two screening cylinders 5 and then enters the other screening cylinder 5.;

[0048] Specifically, a plurality of second springs 74 are arranged between the sliding shell 71 and the fixed shell 8. The two ends of the plurality of second springs 74 are respectively fixedly connected to the sliding shell 71 and the fixed shell 8. Under the action of larger garbage, the rolling roller 7 slides, causing the second springs 74 to elongate. And under the action of the rebounding force of the second springs 74, when the rolling roller 7 rotates, it can better squeeze out the excess water in the garbage. And after the large-volume garbage is squeezed, the rolling roller 7 returns to its original position when the second springs 74 rebound.

[0049] In the further embodiment provided by the present invention, a toothed ring 51 is fixedly arranged on the screening cylinder 5. A first gear 83 is fixedly arranged on one of the fourth pulleys 81. The first gear 83 is in meshing transmission with the toothed ring 51; 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 is in meshing transmission with the second gear 84 and is in meshing transmission with the toothed ring 51. The screening cylinder 5 drives the first gear 83 to rotate through the toothed ring 51, and thus through the transmission of the fourth pulley 81, the tension belt 73 and the third pulley 72, the rolling roller 7 on the corresponding side rotates; the screening cylinder 5 drives the third gear 85 to rotate through the toothed ring 51, and drives the rotation of the second gear 84 through the rotation of the third gear 85, and thus through the transmission of the fourth pulley 81, the tension belt 73 and the third pulley 72, drives the rolling roller 7 on the corresponding side to rotate; the rotation direction of the rolling roller 7 is as Figure 10 shown. When the screening cylinder 5 rotates clockwise, the rolling roller 7 on the side of the first gear 83 rotates counterclockwise. The rolling roller 7 on this side mainly squeezes the garbage on the inner wall of the screening cylinder 5. The rolling roller 7 on the side of the second gear 84 and the third gear 85 rotates clockwise. The rolling roller 7 on this side mainly grinds the garbage on the inner wall of the screening cylinder 5.

[0050] Furthermore, a driven shaft 3 is rotatably arranged on the outer shell 11. Two driving gears 31 are fixedly arranged on the driven shaft 3. The two driving gears 31 correspond to and are in meshing transmission with the two toothed rings 51. When the driven shaft 3 rotates, it drives the screening cylinder 5 to rotate through the meshing of the driving gear 31 and the toothed ring 51, so that after the garbage is crushed, extruded and pulped inside the screening cylinder 5, it can be better discharged, improving the pulping efficiency of the garbage.

[0051] Further, the lifting component includes a material supporting plate 42 slidably arranged on the fixed ring 4. A hollow rod 43 is rotatably arranged on the material supporting plate 42. A reciprocating lead screw 32 is fixedly arranged on the driven shaft 3. A reciprocating block 33 is threadedly arranged on the reciprocating lead screw 32. A telescopic rod 34 is rotatably arranged on the reciprocating block 33. The telescopic rod 34 is slidably connected with the hollow rod 43. When the driven shaft 3 rotates, the reciprocating block 33 makes a reciprocating motion. Through the telescopic rod 34 and the hollow rod 43, when the reciprocating block 33 slides, the rising and falling of the material supporting plate 42 are completed. When the material supporting plate 42 descends to the bottom and fits with the screening cylinder 5, the garbage adhered to the screening cylinder 5 will be scraped off. Under the rotation action of the screening cylinder 5, the scraped garbage is pushed onto the material supporting plate 42. And when the material supporting plate 42 rises, the garbage contacts the crushing blades 22 for crushing. This can not only better scrape the garbage adhered to the inner wall of the screening cylinder 5, but also improve the crushing efficiency.

[0052] In the 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. Two ends of the first spring 35 are respectively fixedly connected with the telescopic rod 34 and the hollow rod 43. When the reciprocating lead screw 32 rotates and the reciprocating block 33 slides, the first spring 35 is first compressed. At this time, the material supporting plate 42 still contacts the screening cylinder 5, and the garbage on the inner wall of the screening 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 the material supporting plate 42 moves upward. When moving to the topmost position, the reciprocating block 33 is located in the middle of the reciprocating lead screw 32. At this time, when the reciprocating lead screw 32 continues to rotate and the reciprocating block 33 continues to slide, the material supporting plate 42 moves downward. After the material supporting plate 42 moves downward and contacts the screening cylinder 5, the reciprocating block 33 continues to slide, the spring is reset, and when the reciprocating block 33 slides to one end of the reciprocating lead screw 32, they slide relative to each other. Similarly, the first spring 35 is first compressed, and then the material supporting plate 42 moves upward, so that the material supporting plate 42 has enough time to fit with the inner wall of the screening cylinder 5 to scrape the garbage on the inner wall of the screening cylinder 5.

[0053] In the embodiment provided by the present invention, a brush 6 corresponding to the screening cylinder 5 is fixedly arranged on the outer shell 11. A driven gear 61 is fixedly arranged on the brush 6. The driven gear 61 is in meshing transmission with the toothed ring 51. When the screening cylinder 5 rotates, the driven gear 61 is driven to rotate through the toothed ring 51. Thus, when the screening cylinder 5 rotates, the brush 6 rotates in the opposite direction. During this process, the bristles of the brush 6 will insert into the screening holes of the screening cylinder 5 to prevent the screening holes from being blocked.

[0054] Specifically, a plurality of scraping blades 41 are fixedly arranged on the fixed ring 4. The plurality of scraping blades 41 are all in contact with the inner wall of the sieve cylinder 5. Through the scraping blades 41, when the material supporting plate 42 rises, the remaining garbage still adheres to the sieve cylinder 5. When passing through the top end, it is scraped off by the scraping blades 41 and directly falls onto the crushing blades 22, improving the crushing efficiency of the garbage.

[0055] In a further provided solution of the present invention, two driving gears 31 are fixedly arranged on the driven shaft 3. The two driving gears 31 correspond to the two toothed rings 51 one by one and are in meshing transmission; a second belt pulley 36 is fixedly arranged on the driven shaft 3, a first belt pulley 23 is fixedly arranged on the main shaft 2, and a linkage belt 24 is arranged for transmission between the first belt pulley 23 and the second belt pulley 36; a driving motor 15 is fixedly arranged on the outer housing 11, 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, so that the main shaft 2 drives the driven shaft 3 to rotate through the transmission of the first belt pulley 23, the linkage belt 24 and the second belt pulley 36. The driven shaft 3 makes the sieve cylinder 5 rotate through the meshing of the driving gears 31 and the toothed rings 51, and drives the rolling roller 7 to rotate through the toothed rings 51.

[0056] A method for adjusting the slurry and removing impurities of kitchen waste is completed by the above-mentioned equipment for adjusting the slurry and removing impurities of kitchen waste. The method for adjusting the slurry and removing impurities of kitchen waste includes the following steps:

[0057] S1: Sort the non-degradable organic matters and inorganic matters contained in the kitchen waste;

[0058] S2: Crush and extrude the sorted kitchen waste to obtain slurry;

[0059] S3: Remove sand and impurities to remove sand-like substances or light floating substances in the slurry;

[0060] S4: Three-phase centrifugation to separate the slurry into an aqueous phase substance, an oil phase substance and a residue phase substance;

[0061] S5: Anaerobic fermentation is carried out on the separated aqueous phase substance, the oil phase substance is used as a product raw material for biodiesel, and the residue phase substance is used for composting.

[0062] Working principle: When pulping garbage by crushing, the garbage is poured into the feeding port 12, and the driving motor 15 is started. Under the transmission of the first pulley 23, the second pulley 36 and the linkage belt 24, the main shaft 2 and the driven shaft 3 rotate simultaneously. The main shaft 2 drives the spiral feeding paddle 21 to feed, and the crushing blades 22 rotate to crush and beat the garbage. The driven shaft 3 rotates, and drives the sieve drum 5 to rotate through the driving gear 31. When the sieve drum 5 rotates, it drives the first gear 83 on one side to rotate through the gear ring 51. The first gear 83 drives the rolling roller 7 to rotate through the transmission between the fourth pulley 81, the tensioning belt 73 and the third pulley 72. At the same time, the gear ring 51 drives the third gear 85 on the other side to make the second gear 84 rotate, so that the rolling roller 7 on the other side rotates, and the rolling rollers 7 on both sides and the sieve drum 5 rotate simultaneously. The rolling rollers 7 extrude and grind the garbage adhered to the sieve drum 5 into pulp; while the sieve drum 5 and the gear ring 51 rotate, the driven gear 61 is driven to rotate through the gear ring 51, so that the brush 6 rotates reversely with the rotation of the sieve drum 5. The bristles on the brush 6 will insert into the sieve holes of the sieve drum 5 to clean the garbage remaining in the sieve holes and prevent the sieve holes from being blocked; when the driven shaft 3 rotates, the reciprocating block 33 slides through the reciprocating lead screw 32 provided on the driven shaft 3, first squeezing the first spring 35. At this time, the supporting plate 42 fits against the inner wall of the sieve drum 5 to scrape the garbage adhered to the inner wall of the sieve drum 5. Under the rotation of the sieve 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 the crushing blades 22 and is crushed and beaten by the crushing blades 22, improving the crushing efficiency of the garbage; when there is a large amount or a lot of garbage adhered to the inner wall of the sieve drum 5, the rolling roller 7 drives the sliding shell 71 to slide, and the second spring 74 is stretched, so that the rolling roller 7 slides to adapt to the larger garbage. When the sliding shell 71 slides, the tensioning rod 76 retracts under the action of the inclined groove 82 and the straight groove 75, moderately relaxing the tensioning belt 73, so that when the sliding shell 71 slides with the rolling roller 7, the fourth pulley 81 can still drive the third pulley 72 to drive the rolling roller 7 to rotate through the tensioning belt 73. When there is a large amount or a lot of garbage adhered to the inner wall of the sieve drum 5, it can still be extruded and ground. The slurry after crushing and extrusion is screened out from the sieve holes of the sieve drum 5 and discharged from the pulp outlet 13. The unbroken substances are discharged from the slag discharge port 14.

[0063] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description 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 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 comprises 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 on 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 on 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 the garbage adhering to the inner wall of the screen cylinder (5) and make it contact with the crushing blade (22); 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) is meshed with the second gear (84) for transmission, and the third gear (85) is meshed with the gear ring (51) for transmission; A driven shaft (3) is rotatably arranged on the outer shell (11), and 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; 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); 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.

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 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.

4. The kitchen waste slurry mixing and impurity removal equipment 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).

5. The kitchen waste slurry mixing and impurity removal equipment according to claim 1, 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 between the first pulley (23) and the second pulley (36) for transmission; 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).

6. 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 5, 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