Kitchen garbage pretreatment equipment

Abstract

Kitchen waste pretreatment equipment relates to the field of kitchen waste treatment and comprises a feeding supporting frame and a pulverizer installation frame, a feeding mechanism is installed on the left side of the feeding supporting frame, and a feeding hopper is installed at the upper end of the feeding supporting frame; a stirring bin is installed on the pulverizer installation frame, a first-stage pulverizing bin and a second-stage pulverizing bin are installed above the stirring bin, and the feeding hopper is communicated with a feeding port of the first-stage pulverizing bin through a spiral conveyor. A first rotating shaft is arranged in the middle of the first-stage crushing bin, and a plurality of crushing blades are arranged outside a first rotating cylinder at intervals in a staggered manner; and a second rotating shaft is arranged in the second-stage crushing bin, a plurality of fine crushing blades are arranged on the outer surface of a second rotating cylinder at intervals in a staggered mode, an impurity outlet is formed in the left end of the second-stage crushing bin, and a plurality of filtering holes are distributed in the lower surface of the second-stage crushing bin. According to the kitchen garbage treatment device, the defects in the prior art are overcome, step-by-step refining treatment of kitchen garbage can be achieved, and it is ensured that the crushing effect is more thorough and uniform. And the purity of the pulp can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen waste treatment, and in particular to a kitchen waste pretreatment device. Background Art

[0002] Kitchen waste refers to waste generated from daily life, food processing, catering services, and workplace catering. This waste includes plant roots, stems, leaves, flowers, fruits, and seeds; animal skins, muscles, bones, and internal organs; and fungal mycelium and fruiting bodies. Humans generate large quantities of kitchen waste in their daily lives. Converting kitchen waste into a homogenous slurry is a key pretreatment step in its resource utilization.

[0003] However, currently, single-stage crushers are typically used to pulverize kitchen waste. However, since they primarily pulverize the waste through the cutting action of a single-axis blade, hard waste such as bones can easily damage the blades during the pulverization process, shortening the blade life and affecting equipment efficiency. Alternatively, bio-leaching and hydrolysis pulping is used. This involves bio-hydrolysis of easily degradable organic matter through the combined mechanical and bio-hydrolysis processes of a bio-hydrolysis reactor, converting most of the organic matter into a slurry. While this treatment device has a high organic matter utilization rate, it is long, requires a large footprint, and requires high investment. The reaction process is primarily driven by microorganisms, resulting in a very long processing time. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a kitchen waste pretreatment device that overcomes the shortcomings of the existing technology. It has a reasonable design and can achieve step-by-step refinement of kitchen waste, ensuring a more thorough and uniform crushing effect. It can also effectively improve the purity of the slurry.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A kitchen waste pre-processing device comprises a feed support frame and a crusher mounting frame, a feed mechanism is fixedly mounted on the left side of the feed support frame, a feed hopper is fixedly mounted on the upper end of the feed support frame, an output end of the feed mechanism corresponds to the upper opening of the feed hopper; the bottom outlet end of the feed hopper is connected to the inlet end of a screw conveyor; A mixing bin is fixedly installed on the crusher mounting frame, and a first-level crushing bin and a second-level crushing bin are installed above the mixing bin, a first feed port is provided at the left end of the upper surface of the first-level crushing bin, the output end of the screw conveyor is connected to the first feed port, a first rotating shaft is horizontally rotatably connected to the middle of the first-level crushing bin through a bearing, one end of the first rotating shaft passes through the first-level crushing bin and is transmission-connected to the first drive motor, a first rotating cylinder is fixedly sleeved on the outer surface of the first rotating shaft, a plurality of crushing blades are staggered at intervals on the outer surface of the first rotating cylinder, a first spiral blade is spirally arranged on one end of the outer surface of the first rotating cylinder close to the first feed port, and a first discharge port is provided on the lower side surface of the right end of the first-level crushing bin. ; The right end side surface of the secondary crushing bin is provided with a second feed port, and the second feed port is connected to the first discharge port accordingly. The secondary crushing bin is horizontally rotatably connected with a second rotating shaft through a bearing, one end of the second rotating shaft passes through the secondary crushing bin and is transmission-connected to the second driving motor, and a second rotating cylinder is fixedly sleeved on the outer surface of the second rotating shaft, and a plurality of fine crushing blades are arranged at intervals on the outer surface of the second rotating cylinder, and a second spiral blade is spirally arranged on one end of the outer surface of the second rotating cylinder close to the second feed port. An impurity outlet is provided on the lower surface of the left end of the secondary crushing bin, and a plurality of filter holes are evenly distributed in the middle of the lower surface of the secondary crushing bin, and the lower ends of the filter holes are correspondingly connected to the inner cavity of the stirring bin.

[0006] Preferably, the feeding mechanism includes a vertical bracket and a trash bin placement rack, guide rails are provided on both sides of the vertical bracket, arc guide rails are provided on the upper ends of the guide rails, the guide rails and the arc guide rails are smoothly transitioned, and guide pulleys are installed on both sides of the trash bin placement rack, and the guide pulleys are movably connected in the guide rails and the arc guide rails; The rubbish bin placement rack is provided with one end of a connecting rod connected by a pin shaft, and the other end of the connecting rod is movably sleeved on the outer surface of the movable shaft, and guide wheels are installed at both ends of the movable shaft, and the guide wheels are movably connected in the guide rails. A driving motor is fixedly installed at the bottom of the inner cavity of the vertical bracket, and a driving sprocket is fixedly installed at the output end of the driving motor, and a driven sprocket is fixedly installed on the top of the inner cavity of the vertical bracket, which is rotatably connected to the driven sprocket via a rotating shaft. The driving sprocket and the driven sprocket are connected by a chain transmission, and the movable shaft is connected to the chain through a connecting piece.

[0007] Preferably, the primary crushing bin includes a first bin body and a first bin cover, the first bin body and the first bin cover are fixedly connected by bolts, the cross-section of the first bin cover is a semi-hexagonal structure, a plurality of first reinforcing ribs are evenly spaced and fixedly welded to the inner wall of the first bin cover, the lower side of the first reinforcing rib is arc-shaped, and an acute angle is formed between the first reinforcing rib and the axial direction of the first bin cover; The secondary crushing bin includes a second bin body and a second bin cover, which are fixedly connected by bolts. The cross-section of the second bin cover is a semi-hexagonal structure. A plurality of second reinforcing ribs are evenly spaced and fixedly welded on the inner wall of the second bin cover. The lower side of the second reinforcing rib is arc-shaped, and an acute angle is formed between the second reinforcing rib and the axial direction of the second bin cover.

[0008] Preferably, a first inclined guide plate is fixedly connected to the side surface of the first reinforcing rib plate, a certain angle is formed between the first inclined guide plate and the first reinforcing rib plate, and the first inclined guide plate is fixedly welded to the first compartment cover; A second inclined guide plate is fixedly connected to the side surface of the second reinforcing rib plate, a certain angle is formed between the second inclined guide plate and the second reinforcing rib plate, and the second inclined guide plate is fixedly welded to the second compartment cover.

[0009] Preferably, the crushing blade includes a first blade bracket and a first blade body, the first blade bracket is vertically fixedly connected to the outer surface of the first rotating cylinder, a first strip-shaped mounting hole is radially opened on the surface of the first blade bracket, and the first blade body is fixedly connected to the first blade bracket by a bolt passing through the first strip-shaped mounting hole; The crushing blade includes a second blade bracket and a second blade body. The second blade bracket is vertically fixedly connected to the outer surface of the second rotating cylinder. A second strip-shaped mounting hole is radially opened on the surface of the second blade bracket. The second blade body is fixedly connected to the second blade bracket by a bolt passing through the second strip-shaped mounting hole.

[0010] Preferably, a guide frame is fixedly connected to the lower surface of the secondary crushing bin, the filter holes are all located inside the guide frame, and the bottom of the guide frame is located in the inner cavity of the mixing bin.

[0011] Preferably, a spiral stirring shaft is horizontally connected in rotation in the stirring chamber, a plurality of spiral stirring blades are provided on the surface of the spiral stirring shaft, one end of the spiral stirring shaft passes through the stirring chamber and is transmission-connected to the third drive motor, a discharge pipe is provided at the bottom side of the stirring chamber, the discharge pipe is connected to the inlet end of the rotor pump, and the outlet end of the rotor pump is connected to the external delivery pipeline.

[0012] The present invention provides a kitchen waste pretreatment device with the following beneficial effects: A dual-stage pulverization structure, comprising a primary pulverization chamber and a secondary pulverization chamber, enables progressively finer processing of kitchen waste, ensuring a more thorough pulverization effect. Furthermore, the staggered arrangement of pulverizing and fine-crushing blades allows for more uniform pulverization of kitchen waste under multi-angle forces. Furthermore, the design of the filter holes and impurity outlet effectively separates impurities, thereby significantly improving the purity of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for describing the present invention or the prior art.

[0014] Figure 1 A schematic structural diagram of the present invention; Figure 2 Schematic diagram of the installation structure of the feed support frame and the feeding mechanism in the present invention; Figure 3 A schematic structural diagram of the feeding mechanism of the present invention; Figure 4 Schematic diagram of the expanded structure of the first-level crushing bin in the present invention; Figure 5 Schematic diagram of the expanded structure of the secondary crushing bin in the present invention; Figure 6 A schematic structural diagram of the first compartment cover in the present invention; Figure 7 A schematic structural diagram of the second compartment cover in the present invention; Figure 8 A schematic structural diagram of the first rotating drum in the present invention; Figure 9 A schematic structural diagram of the second rotating drum in the present invention; Figure 10 A schematic structural diagram of the mixing bin in the present invention; Description of the numbers in the figure: 1. Feed support frame; 2. Crusher mounting frame; 3. Feeding mechanism; 4. Feed hopper; 5. Screw conveyor; 6. Mixing chamber; 7. Primary crushing chamber; 8. Secondary crushing chamber; 9. First feed port; 10. First rotating shaft; 11. First drive motor; 12. First rotating drum; 13. Crushing blades; 14. First spiral blades; 15. First discharge port; 16. Second feed port; 17. Second rotating shaft; 18. Second rotating drum; 19. Crushing blades; 20. Second spiral blades; 21. Impurity outlet; 22. Filter hole; 23. Guide frame; 24. Second drive motor; 31. Vertical support; 32. Trash bin rack; 33. Guide rail; 34. Arc guide rail; 35. Guide rail pulley; 36. connecting rod; 37. movable shaft; 38. guide wheel; 39. driving motor; 310. driving sprocket; 311. driven sprocket; 312. chain; 71. first bin body; 72. first bin cover; 73. first reinforcing rib plate; 74. first inclined guide plate; 81. second bin body; 82. second bin cover; 83. second reinforcing rib plate; 84. second inclined guide plate; 131. first blade bracket; 132. first blade body; 133. first strip mounting hole; 191. second blade bracket; 192. second blade body; 193. second strip mounting hole; 61. spiral stirring shaft; 62. spiral stirring blade; 63. third driving motor; 64. discharge pipe; 65. rotor pump. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0016] Example 1, as Figure 1-10 As shown, a kitchen waste pre-processing device includes a feed support frame 1 and a crusher mounting frame 2. A feeding mechanism 3 is fixedly mounted on the left side of the feed support frame 1, and a feed funnel 4 is fixedly mounted on the upper end of the feed support frame 1. The output end of the feeding mechanism 3 corresponds to the upper opening of the feed funnel 4; the bottom outlet end of the feed funnel 4 is connected to the inlet end of a screw conveyor 5; A mixing bin 6 is fixedly mounted on the crusher mounting frame 2, a first-stage crushing bin 7 and a second-stage crushing bin 8 are mounted above the mixing bin 6, a first feed port 9 is provided at the left end of the upper surface of the first-stage crushing bin 7, the output end of the screw conveyor 5 is connected to the first feed port 9, a first rotating shaft 10 is horizontally rotatably connected to the middle of the first-stage crushing bin 7 through a bearing, one end of the first rotating shaft 10 passes through the first-stage crushing bin 7 and is transmission-connected to the first drive motor 11, a first rotating cylinder 12 is fixedly sleeved on the outer surface of the first rotating cylinder 12, a plurality of crushing blades 13 are staggeredly arranged on the outer surface of the first rotating cylinder 12, a first spiral blade 14 is spirally arranged on one end of the outer surface of the first rotating cylinder 12 near the first feed port 9, a first discharge port 15 is provided on the lower side surface of the right end of the first-stage crushing bin 7; A second feed port 16 is provided on the right end side surface of the crushing bin 8, and the second feed port 16 is connected to the first discharge port 15 accordingly. A second rotating shaft 17 is horizontally rotatably connected to the secondary crushing bin 8 through a bearing. One end of the second rotating shaft 70 passes through the secondary crushing bin 8 and is transmission-connected to the second drive motor 24. A second rotating cylinder 18 is fixedly mounted on the outer surface of the second rotating cylinder 70. A plurality of fine crushing blades 19 are staggeredly arranged at intervals on the outer surface of the second rotating cylinder 18. A second spiral blade 20 is spirally arranged on one end of the outer surface of the second rotating cylinder 18 near the second feed port 16. An impurity outlet 21 is provided on the lower surface of the left end of the secondary crushing bin 8. A plurality of filter holes 22 are evenly distributed in the middle of the lower surface of the secondary crushing bin 8. The lower end of the filter hole 22 is correspondingly connected to the inner cavity of the mixing bin 6.

[0017] Working principle: During use, a trash bin loaded with food waste can be transported to the upper opening of the feed hopper 4 via the feeding mechanism 3. The trash bin is then tilted to allow the food waste to be dumped into the feed hopper 4. Subsequently, the food waste flows from the bottom outlet of the feed hopper 4 into the screw conveyor 5. The screw conveyor 5 then pushes the food waste evenly through the first feed opening 9 into the primary crushing chamber 7. Subsequently, the first drive motor 11 drives the first rotating shaft 10 and the first rotating drum 12 to rotate, thereby driving the crushing blades 13 to rotate, striking the food waste. The crushing blades 13 cooperate with the inner wall of the primary crushing chamber 7 to squeeze, rub, and shear the food waste. Through these multiple actions, the food waste is initially crushed. Simultaneously, the rotation of the first rotating drum 12 synchronously drives the first spiral blades 14 to rotate, thereby gradually pushing the food waste toward the first discharge opening 15 at the right end of the primary crushing chamber 7. In this embodiment, the crushing blades 13 are fixed in sequence on the outer surface of the first rotating drum 12 in an interlaced manner, so that when the food waste moves to the right end of the current crushing blade 13, the food waste without the support of the crushing blade 13 will flip to the left end of the next crushing blade 13, so that the food waste can be hit, squeezed, rubbed and sheared at multiple angles; thereby effectively ensuring the uniformity and thoroughness of the crushing of the food waste, thereby improving the pulping rate of the food waste.

[0018] Subsequently, the preliminarily pulverized food waste enters the secondary pulverizing chamber 8 through the first discharge port 15. Driven by the second drive motor 24, the second rotating shaft 70 rotates the second rotating drum 18, thereby rotating the pulverizing blades 19. The rotation of the pulverizing blades 19 further impacts, squeezes, rubs, and shears the food waste, resulting in a more refined pulverization process within the secondary pulverizing chamber 8, forming a slurry. During the pulverization process, slurry smaller than the diameter of the filter holes 22 passes through the filter holes 22 and falls into the mixing chamber 6. Impurities larger than the diameter of the filter holes 22 (such as plastic bags and other inorganic materials that are not easily pulverized) are gradually transported by the second spiral blades 20 to the impurity outlet 21 of the secondary pulverizing chamber 8 for discharge, thereby effectively ensuring the purity of the slurry. The slurry entering the mixing chamber 6 is thoroughly mixed by the rotation of the stirring blades within the mixing chamber 6, ensuring uniformity and fluidity of the slurry and preventing solid-liquid stratification.

[0019] In the present invention, a dual-stage pulverization structure comprising a primary pulverization chamber 7 and a secondary pulverization chamber 8 enables progressively finer processing of kitchen waste, ensuring a more thorough pulverization effect. Simultaneously, the staggered arrangement of the crushing blades 13 and fine pulverizing blades 19 allows for more uniform pulverization of the kitchen waste under multi-angle forces. Furthermore, the design of the filter holes 22 and impurity outlet 21 effectively separates inorganic impurities such as plastic bags, thereby effectively improving the purity of the slurry and significantly increasing the sorting rate of kitchen waste, thereby providing a higher-quality raw material foundation for subsequent resource utilization.

[0020] Example 2, as Figure 2-3 As shown, as a further preferred embodiment of the first embodiment, the feeding mechanism 3 includes a vertical bracket 31 and a trash bin placement rack 32. Guide rails 33 are provided on both sides of the vertical bracket 31. Arc guide rails 34 are provided on the upper ends of the guide rails 33. The guide rails 33 and the arc guide rails 34 have a smooth transition. Guide pulleys 35 are installed on both sides of the trash bin placement rack 32. The guide pulleys 35 are movably connected to the guide rails 33 and the arc guide rails 34. The trash bin placement rack 32 is connected to one end of two mutually parallel connecting rods 36 through a pin shaft, and the other ends of the two connecting rods 36 are movably sleeved on the outer surface of the movable shaft 37. Guide wheels 38 are installed at both ends of the movable shaft 37, and the guide wheels 38 are movably connected in the guide slide rail 33. A driving motor 39 is fixedly installed at the bottom of the inner cavity of the vertical bracket 31, and a driving sprocket 310 is fixedly installed at the output end of the driving motor 39. A driven sprocket 311 is fixedly installed at the top of the inner cavity of the vertical bracket 31, which is rotatably connected to the rotating shaft. The driving sprocket 310 and the driven sprocket 311 are connected by a chain 312 for transmission, and the movable shaft 37 is connected to the chain 312 through a connecting piece 38.

[0021] Therefore, when in use, the trash can loaded with kitchen waste can be first fixed to the outer surface of the trash can rack 32, and then the driving motor 39 is controlled to start to drive the active sprocket 310 to rotate, so as to drive the chain 312 to move, thereby driving the moving shaft 37 to move upward synchronously with the chain 312. During this process, the moving shaft 37 can slide smoothly in the guide rail 33 through the guide wheels 38 at both ends to effectively ensure the stability of the moving shaft 37 during the movement. As the moving shaft 37 rises, the connecting rod 36 can be used to drive the trash can rack 32 to move upward along the guide rail 33 until the trash can rack 32 reaches the top of the guide rail 33. Then, through the smooth transition guiding effect of the arc guide rail 34, the trash can rack 32 can be smoothly tilted toward the feeding funnel 4 to ensure that the kitchen waste enters the feeding funnel 4 smoothly, achieving an automatic feeding effect.

[0022] Example 3, as Figure 6-7As shown, as a further preferred embodiment of the first embodiment, the primary crushing bin 7 includes a first bin body 71 and a first bin cover 72, which are fixedly connected by bolts. The cross section of the first bin cover 72 is a semi-hexagonal structure. A plurality of first reinforcing ribs 73 are evenly spaced and vertically fixedly welded to the inner wall of the first bin cover 72. The lower side of the first reinforcing rib 73 is arc-shaped, and an acute angle is formed between the first reinforcing rib 73 and the axial direction of the first bin cover 72. The secondary crushing bin 8 includes a second bin body 81 and a second bin cover 82, which are fixedly connected by bolts. The cross-section of the second bin cover 82 is a semi-hexagonal structure. A plurality of second reinforcing ribs 83 are evenly spaced and vertically fixedly welded on the inner wall of the second bin cover 82. The lower side of the second reinforcing rib 83 is arc-shaped, and an acute angle is formed between the second reinforcing rib 83 and the axial direction of the second bin cover 82.

[0023] By configuring both the first and second bin covers 72, 82 as semi-hexagonal structures and providing a large gap between the first and second bin covers 72, 82 and the crushing blades 13 and fine-crushing blades 19, respectively, when the food waste rotates with the crushing blades 13 and fine-crushing blades 19 and moves to the first and second bin covers 72, 82, the food waste is separated from the crushing blades 13 and fine-crushing blades 19 by centrifugal force and collides with the inner walls of the first and second bin covers 72, 82, thereby achieving efficient crushing. Furthermore, by adopting a semi-hexagonal structure for the first and second bin covers 72, 82, multi-angle impacts on the food waste are achieved, improving crushing uniformity.

[0024] Furthermore, by uniformly welding the first and second reinforcing ribs 73, 83 to the inner walls of the first and second bin covers 72, 82, the first and second bin covers 72, 82 are structurally reinforced. Furthermore, the corners of the first and second reinforcing ribs 73, 83 are used to effectively cut the food waste, further refining the crushing process and improving processing efficiency. Furthermore, by setting the first and second reinforcing ribs 73, 83 at a certain inclination angle, when the food waste strikes the first and second reinforcing ribs 73, 83, the inclination angle guides the food waste forward, effectively preventing it from accumulating within the bin, ensuring continuous feeding and a smooth crushing process, reducing equipment stalls, and improving overall processing efficiency.

[0025] Embodiment 4, as a further preferred embodiment of embodiment 3, a first inclined guide plate 74 is fixedly connected to the side of the first reinforcing rib plate 73, a certain angle is formed between the first inclined guide plate 74 and the first reinforcing rib plate 73, and the first inclined guide plate 74 is fixedly welded to the first bin cover 72; a second inclined guide plate 84 is fixedly connected to the side of the second reinforcing rib plate 83, a certain angle is formed between the second inclined guide plate 84 and the second reinforcing rib plate 83, and the second inclined guide plate 84 is fixedly welded to the second bin cover 82.

[0026] By welding the first inclined guide plate 74 and the second inclined guide plate 84 to the side surfaces of the first reinforcing rib plate 73 and the second reinforcing rib plate 83 respectively, the triangular structure formed between the first reinforcing rib plate 73, the first inclined guide plate 74 and the inner wall of the first bin cover 72 and the triangular structure formed between the second reinforcing rib plate 83, the second inclined guide plate 84 and the inner wall of the second bin cover 82 can be used to further strengthen the structural stability of the first bin cover 72 and the second bin cover 82. At the same time, through the inclined guiding effect of the first inclined guide plate 74 and the second inclined guide plate 84, the accumulation problem of kitchen waste at the angle between the first bin cover 72 and the first reinforcing rib plate 73 and the angle between the second bin cover 82 and the second reinforcing rib plate 83 can be effectively avoided, ensuring that the kitchen waste can pass through evenly and smoothly, ensuring continuous feeding, reducing the frequency of equipment shutdown due to accumulation, and further improving the crushing efficiency and processing effect. At the same time, the first inclined guide plate 74 and the second inclined guide plate 84 can effectively increase the contact area with the kitchen waste, so that the kitchen waste is cut and impacted more evenly during the crushing process, further refining the crushed particles and improving the processing quality.

[0027] Example 5, as Figure 8-9 As shown, as a further preferred embodiment of the first embodiment, the crushing blade 13 includes a first blade bracket 131 and a first blade body 132. The first blade bracket 131 is vertically fixedly connected to the outer surface of the first rotating cylinder 12. A first strip-shaped mounting hole 133 is radially opened on the surface of the first blade bracket 131. The first blade body 132 is fixedly connected to the first blade bracket 131 by a bolt passing through the first strip-shaped mounting hole 133. The crushing blade 19 includes a second blade bracket 191 and a second blade body 192. The second blade bracket 191 is vertically fixedly connected to the outer surface of the second rotating cylinder 18. A second strip-shaped mounting hole 193 is radially opened on the surface of the second blade bracket 191. The second blade body 192 is fixedly connected to the second blade bracket 191 by bolts passing through the second strip-shaped mounting hole 193.

[0028] By respectively opening the first strip mounting hole 133 and the second strip mounting hole 193 on the surfaces of the first blade bracket 131 and the second blade bracket 191, the first blade body 132 and the second blade body 192 are respectively connected to the first strip mounting hole 133 and the second strip mounting hole 193 by bolts. Therefore, when the first blade body 132 and the second blade body 192 are worn out after a long period of friction with kitchen waste and the diameter is reduced, which causes the gap between the blade and the inner wall of the bin to increase, the position of the bolt can be fine-tuned so that the bolt is adjusted along the axial direction of the strip holes of the first strip mounting hole 133 and the second strip mounting hole 193, so as to achieve precise compensation of the radial position of the first blade body 132 and the second blade body 192, ensuring that the gap between the blade and the inner wall of the bin is always maintained in the optimal range, effectively extending the service life of the blade, and maintaining the stability of the crushing efficiency, further improving the overall operation reliability and processing effect of the equipment.

[0029] In Example 6, a further preferred embodiment of Example 1, a guide frame 23 is fixedly connected to the lower surface of the secondary crushing bin 8. The filter holes 22 are all located within the guide frame 23, and the bottom of the guide frame 23 is located within the inner cavity of the mixing bin 6. The limiting effect of the guide frame 23 ensures that the slurry that permeates through the filter holes 22 can flow smoothly into the inner cavity of the mixing bin 6, thereby preventing the slurry from spreading outward along the lower surface of the secondary crushing bin 8. This ensures centralized processing of the slurry, improves resource utilization, and effectively reduces environmental pollution.

[0030] Example 7, as Figure 10 As shown, as a further preferred embodiment of the first embodiment, a spiral stirring shaft 61 is connected to the stirring chamber 6 for horizontal rotation, and a plurality of spiral stirring blades 62 are provided on the surface of the spiral stirring shaft 61. One end of the spiral stirring shaft 61 passes through the stirring chamber 6 and is connected to the third drive motor 63. A discharge pipe 64 is provided at the bottom of the side of the stirring chamber 6. The discharge pipe 64 is connected to the inlet end of the rotor pump 65, and the outlet end of the rotor pump 65 is connected to the external conveying pipeline. Therefore, during use, the third drive motor 63 can be controlled to drive the spiral stirring shaft 61 and the spiral stirring blade 62 to rotate continuously and evenly, and then the stirring effect of the spiral stirring blade 62 can be used to ensure the uniformity and fluidity of the slurry in the stirring chamber 6. The outlet end of the rotor pump 65 is connected to the external conveying pipeline to ensure that the slurry can be transported to the next processing link through the rotor pump 65 to avoid blockage and improve the smoothness and efficiency of the overall processing flow.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A kitchen waste pretreatment device, characterized by: It comprises a feed support frame (1) and a crusher mounting frame (2), wherein a feed mechanism (3) is fixedly mounted on the left side of the feed support frame (1), a feed hopper (4) is fixedly mounted on the upper end of the feed support frame (1), and the output end of the feed mechanism (3) corresponds to the upper opening of the feed hopper (4); the bottom outlet end of the feed hopper (4) is connected to the inlet end of a screw conveyor (5); A mixing bin (6) is fixedly mounted on the crusher mounting frame (2), a first crushing bin (7) and a second crushing bin (8) are mounted above the mixing bin (6), a first feed port (9) is provided on the left end of the upper surface of the first crushing bin (7), the output end of the screw conveyor (5) is connected to the first feed port (9), a first rotating shaft (10) is horizontally rotatably connected to the middle of the first crushing bin (7) through a bearing, one end of the first rotating shaft (10) passes through the first crushing bin (7) and is transmission-connected to the first drive motor (11), a first rotating cylinder (12) is fixedly sleeved on the outer surface of the first rotating cylinder (12), a plurality of crushing blades (13) are staggeredly arranged on the outer surface of the first rotating cylinder (12), a first spiral blade (14) is spirally arranged on one end of the outer surface of the first rotating cylinder (12) near the first feed port (9), and a first discharge port (15) is provided on the lower side surface of the right end of the first crushing bin (7); The right end side surface of the secondary crushing bin (8) is provided with a second feed port (16), and the second feed port (16) is connected to the first discharge port (15) in correspondence. A second rotating shaft (17) is horizontally rotatably connected in the secondary crushing bin (8) through a bearing. One end of the second rotating shaft (70) passes through the secondary crushing bin (8) and is transmission-connected to the second drive motor (24). A second rotating cylinder (18) is fixedly sleeved on the outer surface of the second rotating shaft (70). A plurality of fine crushing blades (19) are staggeredly arranged at intervals on the outer surface of the second rotating cylinder (18). A second spiral blade (20) is spirally arranged on one end of the outer surface of the second rotating cylinder (18) near the second feed port (16). An impurity outlet (21) is provided on the lower surface of the left end of the secondary crushing bin (8). A plurality of filter holes (22) are evenly distributed in the middle of the lower surface of the secondary crushing bin (8), and the lower ends of the filter holes (22) are correspondingly communicated with the inner cavity of the stirring bin (6).

2. The kitchen waste pretreatment equipment according to claim 1, characterized in that: The feeding mechanism (3) includes a vertical bracket (31) and a trash bin placement rack (32), wherein both sides of the vertical bracket (31) are provided with guide rails (33), and the upper end of the guide rails (33) is provided with an arc guide rail (34), and the guide rails (33) and the arc guide rail (34) are smoothly transitioned, and both sides of the trash bin placement rack (32) are provided with guide pulleys (35), and the guide pulleys (35) are movably connected in the guide rails (33) and the arc guide rails (34); One end of a connecting rod (36) is connected to the trash bin placement rack (32) via a pin shaft, and the other end of the connecting rod (36) is movably sleeved on the outer surface of a movable shaft (37). Guide wheels (38) are installed at both ends of the movable shaft (37), and the guide wheels (38) are movably connected to the guide rail (33). A driving motor (39) is fixedly installed at the bottom of the inner cavity of the vertical bracket (31), and a driving sprocket (310) is fixedly installed at the output end of the driving motor (39). A driven sprocket (311) is fixedly installed at the top of the inner cavity of the vertical bracket (31) and is rotatably connected to the driven sprocket (311) via a rotating shaft. The driving sprocket (310) and the driven sprocket (311) are connected to each other through a chain (312). The movable shaft (37) is connected to the chain (312) through a connecting piece (38).

3. The kitchen waste pretreatment equipment according to claim 1, characterized in that: The primary crushing bin (7) comprises a first bin body (71) and a first bin cover (72), wherein the first bin body (71) and the first bin cover (72) are fixedly connected by bolts, the cross section of the first bin cover (72) is a semi-hexagonal structure, a plurality of first reinforcing ribs (73) are fixedly welded to the inner wall of the first bin cover (72) at even intervals, the lower side of the first reinforcing ribs (73) is arc-shaped, and an acute angle is formed between the first reinforcing ribs (73) and the axial direction of the first bin cover (72); The secondary crushing bin (8) comprises a second bin body (81) and a second bin cover (82), wherein the second bin body (81) and the second bin cover (82) are fixedly connected by bolts, the cross section of the second bin cover (82) is a semi-hexagonal structure, a plurality of second reinforcing ribs (83) are fixedly welded to the inner wall of the second bin cover (82) at even intervals, the lower side of the second reinforcing ribs (83) is arc-shaped, and an acute angle is formed between the second reinforcing ribs (83) and the axial direction of the second bin cover (82).

4. The kitchen waste pretreatment equipment according to claim 3, characterized in that: A first inclined guide plate (74) is fixedly connected to the side of the first reinforcing rib plate (73), a certain angle is formed between the first inclined guide plate (74) and the first reinforcing rib plate (73), and the first inclined guide plate (74) is fixedly welded to the first compartment cover (72); A second inclined guide plate (84) is fixedly connected to the side of the second reinforcing rib plate (83), a certain angle is formed between the second inclined guide plate (84) and the second reinforcing rib plate (83), and the second inclined guide plate (84) is fixedly welded to the second bin cover (82).

5. The kitchen waste pretreatment equipment according to claim 1, characterized in that: The crushing blade (13) comprises a first blade bracket (131) and a first blade body (132); the first blade bracket (131) is vertically fixedly connected to the outer surface of the first rotating cylinder (12); a first strip-shaped mounting hole (133) is radially opened on the surface of the first blade bracket (131); the first blade body (132) is fixedly connected to the first blade bracket (131) by a bolt passing through the first strip-shaped mounting hole (133); The crushing blade (19) comprises a second blade bracket (191) and a second blade body (192). The second blade bracket (191) is vertically fixedly connected to the outer surface of the second rotating cylinder (18). A second strip-shaped mounting hole (193) is radially opened on the surface of the second blade bracket (191). The second blade body (192) is fixedly connected to the second blade bracket (191) by means of a bolt passing through the second strip-shaped mounting hole (193).

6. The kitchen waste pretreatment equipment according to claim 1, characterized in that: A guide frame (23) is fixedly connected to the lower surface of the secondary crushing bin (8), the filter holes (22) are all located inside the guide frame (23), and the bottom of the guide frame (23) is located in the inner cavity of the stirring bin (6).

7. The kitchen waste pretreatment equipment according to claim 1, characterized in that: A spiral stirring shaft (61) is horizontally connected in rotation in the stirring chamber (6), and a plurality of spiral stirring blades (62) are provided on the surface of the spiral stirring shaft (61). One end of the spiral stirring shaft (61) passes through the stirring chamber (6) and is transmission-connected to a third drive motor (63). A discharge pipe (64) is provided at the bottom of the side of the stirring chamber (6), and the discharge pipe (64) is connected to the inlet end of a rotor pump (65). The outlet end of the rotor pump (65) is connected to an external delivery pipeline.

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