A deodorizing plant-based cat litter, its preparation method and equipment

Abstract

This invention discloses a deodorizing plant-based cat litter preparation device, including a column, a positioning and lifting mechanism, an upper mixing tank, a stirring motor, a feeding hopper, a bidirectional dispersing mechanism, a worktable, a blockage clearing mechanism, a drying cylinder, and a spiral screening and drying mechanism. A base plate is fixed to the bottom front side of the column. This deodorizing plant-based cat litter preparation device is equipped with a lower mixing tank, an upper mixing tank, and a positioning and lifting mechanism. A first screw drive device drives the top cover and stirring paddle to rise and disengage from the lower mixing tank. A hydraulic cylinder retracts and drives a cone plate to descend. At this time, the lower mixing tank on the cone plate descends and is placed on a pad. The cone plate continues to descend below the pad plate, and rollers push the lower mixing tank away from the upper mixing tank. The lower mixing tank serves to store raw materials and age them. Simultaneously, a new lower mixing tank is replaced for subsequent mixing and processing, greatly shortening the discharge time and reducing material residue during the discharge process.

Description

Technical Field

[0001] This invention relates to the field of plant-based cat litter preparation equipment technology, specifically to a deodorizing plant-based cat litter, its preparation method, and preparation equipment. Background Technology

[0002] Plant-based cat litter is a type of cat litter made primarily of plants mixed with other auxiliary materials. By mixing in auxiliary materials such as activated carbon, the deodorizing properties of plant-based cat litter can be enhanced. In order to mix the main and auxiliary materials to prepare cat litter, plant-based cat litter preparation equipment is required.

[0003] The preparation of plant-based cat litter first requires mixing the raw materials. Existing preparation equipment typically lacks a pre-dispersing mechanism; the main materials, auxiliary materials, and slurry are directly placed inside the mixing drum, significantly prolonging the mixing time. Furthermore, the powder's clumping properties further reduce mixing uniformity. After mixing, the raw materials need to be placed for aging. Existing equipment usually requires removing and transporting the mixed raw materials, which can easily leave residue in the mixing drum. This removal process also occupies the mixing equipment, extending processing time. After aging, the raw materials are granulated. During granulation, clogging of the ring die is inevitable. During continuous processing, it is difficult to monitor the material output of a specific die hole in the ring die in real time. Each time a blockage needs to be cleared, the machine must be stopped and the ring die completely removed, which greatly increases the difficulty and time of maintenance. After the raw material is granulated, it becomes plant-based cat litter. Plant-based cat litter usually needs to be dried and screened. Existing preparation equipment usually processes it in two separate steps. At the same time, the plant-based cat litter needs to be frequently turned over during the drying and screening processes. Since plant-based cat litter is made of powder aggregate, frequent turning of the plant-based cat litter can easily cause it to break, reducing the quality and yield of the finished plant-based cat litter. To address the above problems, the existing equipment needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a deodorizing plant-based cat litter, its preparation method, and preparation equipment, to solve the problems mentioned in the background art. Existing preparation equipment typically lacks a pre-dispersing mechanism, with main materials, auxiliary materials, and slurry directly placed inside the mixing drum for stirring, significantly extending the stirring time. Furthermore, the agglomeration of powder further reduces mixing uniformity. Existing preparation equipment usually requires removing and transferring the stirred raw materials, which can easily leave residues in the mixing drum. This process also occupies the mixing equipment, extending processing time. During granulation, blockage of the ring die holes is inevitable. In continuous processing, it is difficult to monitor the discharge from a specific die hole in real time, and each time blockage is cleared, the machine must be stopped and the ring die completely removed, greatly increasing maintenance difficulty and time. Existing preparation equipment typically involves two independent processing steps, and the plant-based cat litter needs frequent turning during drying and screening. Frequent turning can cause the plant-based cat litter to break, reducing the quality and yield of the finished product.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an odor-deodorizing plant-based cat litter preparation device, comprising a column, a positioning and lifting mechanism, an upper mixing tank, a stirring motor, a feeding hopper, a bidirectional dispersing mechanism, a worktable, a blockage clearing mechanism, a drying cylinder, and a spiral screening and drying mechanism. A base plate is fixed to the bottom front side of the column, and a pad is suspended above the base plate. One end of the pad is welded and fixed to the column, and a lower mixing tank is placed above the pad. The lower mixing tank is connected to the base plate via the positioning and lifting mechanism, and rollers are fixedly installed at the bottom of the lower mixing tank. An upper mixing tank is fitted to the top of the lower mixing tank, and a top cover is installed on the top of the upper mixing tank. A stirring motor is fixedly installed on the top of the top cover, and one end of the stirring motor is connected to a stirring paddle. The stirring paddle is located inside both the upper and lower mixing tanks. The upper mixing tank is fixedly installed on the front side of the column, and the column and the top cover are connected via a first screw drive device.

[0006] A feeding hopper is fixedly installed on the left side of the upper mixing tank, and the bottom of the feeding hopper is connected to the left side of the upper mixing tank. A powder screen is fixedly installed on the lower side inside the feeding hopper, and a bidirectional dispersing mechanism is installed on the upper side inside the feeding hopper. The bidirectional dispersing mechanism is located above the powder screen.

[0007] A workbench is placed to the right of the column, and a mounting frame is fixed on the top of the workbench. Pressure rollers are rotatably mounted on both sides of the mounting frame. A shell cover is wrapped around the outside of the mounting frame and is fixedly connected to the top of the workbench. A ring mold is rotatably mounted inside the shell cover, and the inner side of the ring mold is fitted with the pressure rollers. A driven wheel is fixed on the top of the ring mold and is meshed with a driving wheel. The driving wheel is connected to a servo motor fixedly mounted on the top of the shell cover. A blockage clearing mechanism is provided on the rear side of the inside of the shell cover in cooperation with the rear side of the mounting frame. The surface of the ring mold is evenly provided with mold holes.

[0008] A support is placed on the right side of the workbench, and a drying cylinder is rotatably mounted on the top of the support. A second motor is fixedly mounted on the right side of the support and connected to the drying cylinder. A spiral screening and drying mechanism is fixedly mounted inside the drying cylinder. An opening is provided at the bottom of the drying cylinder. A receiving tray is fixedly mounted at the bottom of the support and located below the opening. A waste outlet is provided at the rear of the drying cylinder and is connected to a material collection tray, which is fixedly mounted on the right side of the support.

[0009] Preferably, the positioning and lifting mechanism includes a chute, a cone plate, a cone groove, and a hydraulic cylinder. The center of the pad is provided with a chute, and a cone plate is slidably installed inside the chute. The cone plate is fitted inside the cone groove, and the cone groove is located at the bottom of the lower mixing tank. The bottom of the cone plate is connected to the hydraulic cylinder, and the hydraulic cylinder is fixedly installed at the top of the bottom.

[0010] By adopting the above technical solution, the position of the lower mixing tank is guided by the cone plate and cone groove when the hydraulic cylinder is lifted, which reduces the requirements for the placement accuracy of the lower mixing tank and makes the lower mixing tank fit tightly with the upper mixing tank after being lifted.

[0011] Preferably, the bidirectional dispersing mechanism includes a support platform, an outer rotating cylinder, an inner rotating cylinder, paddles, a driven bevel gear, a first motor, and a driving bevel gear. The support platform is fixedly installed inside the feed hopper, and an outer rotating cylinder is rotatably installed at the bottom of the support platform. An inner rotating cylinder is rotatably installed inside the outer rotating cylinder, and paddles are fixed at the bottom of both the inner and outer rotating cylinders. Driven bevel gears are installed at the top of both the outer and inner rotating cylinders, and the driven bevel gears mesh with the driving bevel gear. The first motor is fixedly installed on the right side of the feed hopper, and the first motor passes through the feed hopper and is connected to the driving bevel gear. At the same time, both the driving and driven bevel gears are located inside the support platform. The rotation direction of the outer rotating cylinder is opposite to that of the inner rotating cylinder.

[0012] By adopting the above technical solution, the raw material is poured into the feed hopper. Then, the first motor drives two bevel gears to rotate through the active bevel gear. The two bevel gears rotate in opposite directions, so that the outer rotating drum and the inner rotating drum rotate in opposite directions. The two blades on the inner rotating drum and the outer rotating drum work together to disperse the raw material in the feed hopper, so that the raw material can pass through the powder screening and enter the upper mixing tank in powder form.

[0013] Preferably, an installation plate is fixedly installed on the left side inside the shell cover, and multiple scrapers are evenly installed on the installation plate. A pressure sensor is installed at the connection between the scraper and the installation plate. The scraper is set to fit against the surface of the ring die on the side closer to the ring die, and the scraper is set to correspond to the die hole.

[0014] By adopting the above technical solution, the raw material inside the ring die is squeezed by the pressure roller and extruded through the die hole. At the same time, the raw material rotates with the ring die. At this time, the scraper attached to the outside of the ring die squeezes and cuts the raw material rotating with the ring die, causing it to break into plant cat litter and fall onto the worktable.

[0015] Preferably, a push plate is fixed at the bottom of the ring mold, and a discharge port is opened on the right side of the workbench. The discharge port is connected to the left end of the conveying auger, and the right end of the conveying auger passes through the center of the drying cylinder and is rotatably connected to the drying cylinder.

[0016] By adopting the above technical solution, when the ring die rotates, it drives the push plate to rotate as well. Then the push plate pushes the plant cat litter on the worktable to rotate until the plant cat litter rotates to the discharge port and falls into the inside of the conveying auger, so that the material can be pushed into the drying cylinder by the conveying auger.

[0017] Preferably, the unblocking mechanism includes a first electric push rod, a first movable frame, a sealing groove, a slide, a second screw lifting device, a second movable frame, a second electric push rod, a laser ablation device, a high-pressure water nozzle, and an angular displacement sensor. The first movable frame is mounted on the rear side of the mounting frame via the first electric push rod, and a sealing groove is provided on the surface of the first movable frame. The slide is mounted on the rear side of the housing via the second screw lifting device. The second movable frame is mounted on the slide via the second electric push rod. The laser ablation device and the high-pressure water nozzle are fixedly mounted on the side of the second movable frame near the ring mold, and the high-pressure water nozzle is located below the laser ablation device. An angular displacement sensor is installed at the connection between the ring mold and the housing.

[0018] By adopting the above technical solution, the first electric push rod pushes the first movable frame to fit into the inside of the ring mold, sealing and blocking the inner side of the mold hole. The second screw lifting device pushes the second movable frame to lift and adjust its height. At the same time, the second electric push rod pushes the laser ablation device to align with the corresponding mold hole. The laser ablation device ablates the blocked mold hole. Similarly, the high-pressure water nozzle is moved to the blocked mold hole and flushed with high-pressure water. The wastewater enters the sealing tank through the mold hole. The external negative pressure suction equipment extracts the wastewater to avoid affecting the subsequent granulation process.

[0019] Preferably, the spiral screening and drying mechanism includes a spiral screen, a spiral connecting plate, a microwave dryer, and a microwave reflective coating. The spiral screen is fixed to the inner side of the spiral connecting plate, and the spiral connecting plate is fixedly installed inside the drying cylinder. The microwave dryer is fixedly installed on the surface of the spiral connecting plate, and the surface of the spiral connecting plate is provided with a microwave reflective coating.

[0020] By adopting the above technical solution, the spiral plate divides the inside of the drying cylinder into a spiral channel. At the same time, the spiral screen is set along the spiral plate, which extends the movement path of the plant cat litter on the spiral plate. Subsequently, the microwave dryer, which is evenly set on the spiral plate, dries the spirally moving plant cat litter. Meanwhile, the microwave reflective coating reflects the microwaves emitted by the microwave dryer, so that the microwaves irradiate the plant cat litter evenly.

[0021] Preferably, the drying cylinder has an air outlet on the right side and an air inlet inside the opening, and the air inlet is connected to the air gathering plate, while the air gathering plate is fixedly installed on the left side of the bracket.

[0022] By adopting the above technical solution, the external drying air source is connected to the air inlet, and the air outlet is connected to the external negative pressure suction device. At this time, the external drying air source, the air gathering plate, the air inlet, the drying cylinder, the air outlet, and the external negative pressure suction device form an airflow channel, which facilitates the drying air source to spiral forward along the inside of the drying cylinder and carry the evaporated water vapor out of the air outlet.

[0023] A method for preparing deodorizing plant-based cat litter includes the following steps:

[0024] (1) Mixing raw materials

[0025] a. Powdered raw materials are poured into the feed hopper. The first motor drives the blades on the inner and outer rotating drums to rotate. Then, the two blades work together to break up the powder. The powder passes through the powder screen and enters the upper and lower mixing tanks. The slurry is poured directly into the upper and lower mixing tanks.

[0026] b. The stirring motor drives the stirring paddle to rotate, and the stirring paddle stirs the powder and slurry, so that the raw materials are evenly mixed inside the first and second stirring tanks.

[0027] (2) Raw material separation and aging

[0028] a. The hydraulic cylinder drives the conical plate to descend, causing the conical plate to disengage from the conical groove, thus disengaging the lower mixing tank from the upper mixing tank, and pushing the lower mixing tank to the placement location.

[0029] b. Seal the mixing tank and let it sit for hours to complete the aging process.

[0030] (3) Raw material granulation

[0031] a. After aging, the raw material is poured into the shell. The servo motor drives the ring die to rotate. The ring die and the pressure roller work together to squeeze the raw material, so that the raw material is squeezed out from the die hole.

[0032] b. When the ring die rotates, the scraper squeezes and cuts off the plant-based cat litter squeezed out of the die hole, causing the plant-based cat litter to fall onto the worktable.

[0033] (4) Locating and clearing mold hole blockage

[0034] a. Each scraper independently cuts the plant-based cat litter extruded from one die hole. At the same time, the pressure sensor monitors the force on the scraper in real time. When no material is detected in the die hole, the angular displacement sensor records the corresponding die hole position.

[0035] b. After the blocked die hole rotates to a specific position with the ring die, the first electric push rod pushes the sealing groove to fit tightly against the inner side of the ring die, the second electric push rod pushes the laser ablation device and the high-pressure water nozzle to approach the outer side of the sealing groove, and the second screw lifting mechanism pushes the laser ablation device and the high-pressure water nozzle to adjust their height. The laser ablation device first ablates the blockage material in the die hole, and then the high-pressure water nozzle flushes the die hole. The flushed waste material enters the sealing groove and is discharged.

[0036] (5) Drying and screening

[0037] a. The conveying auger pushes the cat litter into the drying cylinder. The second motor drives the drying cylinder to rotate. At this time, the cat litter moves around the spiral screen inside the drying cylinder. During the movement, the cat litter debris moves through the spiral screen to the inside of the spiral receiving plate until the debris rotates to the outermost side of the spiral receiving plate and is poured into the material collection tray.

[0038] b. The microwave dryer on the surface of the spiral plate emits microwaves, and at the same time, the microwave reflective coating reflects the microwaves to heat the cat litter from all directions and angles. The moisture in the cat litter enters the air, and the fan draws the air out through the air outlet. The drying source delivers dry air from the air collecting plate and the air inlet. The air flows in the opposite direction of the cat litter movement and carries away the hot and humid air.

[0039] Compared with the prior art, the beneficial effects of the present invention are: the deodorizing plant-based cat litter, the preparation method, and the preparation equipment,

[0040] (1) It is equipped with a lower mixing tank, an upper mixing tank and a positioning and lifting mechanism. The first screw drive device drives the top cover and the mixing paddle to rise and separate from the interior of the lower mixing tank. The hydraulic cylinder retracts and drives the cone plate to descend. At this time, the lower mixing tank on the cone plate descends and is placed on the pad. The cone plate continues to descend to below the pad. The roller pushes the lower mixing tank to separate from the upper mixing tank. The lower mixing tank plays the role of storing raw materials and aging them. At the same time, a new lower mixing tank is replaced for subsequent mixing and stirring processing, which greatly shortens the discharge time and reduces the residue of materials in the discharge process.

[0041] (2) It is equipped with a feeding hopper and a bidirectional dispersing mechanism. The raw material is poured into the feeding hopper. Then, the first motor drives the two driven bevel gears to rotate through the active bevel gear. Since the two driven bevel gears are respectively located on both sides of the active bevel gear, the two driven bevel gears rotate in opposite directions, which makes the blades on the outer rotating drum and the blades on the inner rotating drum rotate in opposite directions. The two blades work together to disperse the raw material, which makes it easier for the raw material to pass through the powder screen. The screened powder slides into the upper mixing tank, which makes it easier to complete the pre-dispersing before mixing and stirring, which makes it easier to add slurry later, and at the same time improves the mixing efficiency.

[0042] (3) It is equipped with a blockage clearing mechanism, a ring die and a pressure sensor. The pressure sensor between the scraper and the mounting plate monitors the pressure in real time. Once the ring die hole is blocked, the corresponding scraper will not be subjected to force to cut the raw material. With the help of the angular displacement sensor, the blocked die hole is located in real time. The ring die rotates to the slide, the first electric push rod pushes the first movable frame to fit against the inner side of the ring die, the second screw lifting device drives the second movable frame to rise and fall, the second electric push rod pushes the laser ablation device to align with the blocked die hole, the laser ablation device ablates the raw material blocked in the die hole, and then the high-pressure water nozzle is moved to flush the die hole. This facilitates automatic monitoring and automatic blockage clearing, shortens maintenance time and improves granulation efficiency.

[0043] (4) A drying drum and a spiral screening and drying mechanism are provided. The conveying auger pushes the plant cat litter into the center of the drying drum. Then the drying drum rotates and the plant cat litter moves along the spiral screen inside the drying drum. The screened debris falls into the spiral plate set along the spiral screen. During the spiral movement of the plant cat litter, the microwave dryer on the spiral plate generates microwaves. At the same time, the microwave reflective coating reflects the microwaves, so that the microwaves are reflected inside the drying drum and the plant cat litter is dried evenly. This makes it easy to complete drying and screening at the same time, reduces the problem of broken material caused by multiple collisions of plant cat litter, and improves the yield and quality of plant cat litter.

[0044] (5) The system is equipped with a blockage clearing mechanism, a conveying auger, and a receiving tray. The aged raw material is poured into the shell cover. The ring die rotates and cooperates with the pressure roller to extrude the raw material into shape. At the same time, during the rotation of the ring die, the scraper cuts the raw material into cat litter. The cat litter is pushed by the push plate that rotates with the ring die and falls into the conveying auger from the opening. The conveying auger pushes the cat litter into the drying cylinder for drying and screening. Then, the good products fall into the receiving tray from the discharge port, and the debris automatically enters the collection tray from the waste port. During the process of the scraper cutting the raw material, the pressure sensor monitors the data in real time. The control system quickly determines the blockage position of the die hole based on the angular displacement sensor and the pressure sensor and drives the blockage clearing mechanism to automatically complete the blockage clearing of the die hole. The above processing process has a high degree of automation and does not require manual intervention, which greatly reduces labor costs and also reduces accidental losses caused by human interference. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0046] Figure 2 This is a schematic diagram of the left-side cross-sectional structure of the column of the present invention;

[0047] Figure 3 This is a top view of the column structure of the present invention;

[0048] Figure 4 This is a schematic diagram of the main cross-sectional structure of the mounting platform of the present invention;

[0049] Figure 5 This is a side view cross-sectional structural diagram of the drying cylinder of the present invention;

[0050] Figure 6 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0051] Figure 7 For the present invention Figure 1 Enlarged structural diagram at point B;

[0052] Figure 8 For the present invention Figure 1 Enlarged structural diagram at point C;

[0053] Figure 9 For the present invention Figure 4 Enlarged structural diagram at point D;

[0054] Figure 10 This is a three-dimensional structural diagram of the bidirectional disintegration mechanism of the present invention.

[0055] In the diagram: 1. Column; 2. Base plate; 3. Pad plate; 4. Lower mixing tank; 5. Positioning and lifting mechanism; 51. Slide groove; 52. Conical plate; 53. Conical groove; 54. Hydraulic cylinder; 6. Roller; 7. Upper mixing tank; 8. Top cover; 9. Mixing motor; 10. Mixing paddle; 11. First lead screw drive device; 12. Feed hopper; 13. Powder screen; 14. Bidirectional dispersing mechanism; 141. Support platform; 142. Outer rotating cylinder; 143. Inner rotating cylinder; 144. Paddle blade; 145. Driven bevel gear; 146. First motor; 147. Driven bevel gear; 15. Workbench; 16. Mounting frame; 17. Pressure roller; 18. Shell cover; 19. Ring die; 20. Driven wheel; 21. Driven wheel; 22. Servo motor; 23. Unblocking mechanism; 231. First electric push rod; 232. First movable frame; 233. Sealing groove; 234. Slide; 235. Second screw lifting device; 236. Second movable frame; 237. Second electric push rod; 238. Laser ablation device; 239. High-pressure water nozzle; 2310. Angular displacement sensor; 24. Die hole; 25. Support; 26. Drying cylinder; 27. Second motor; 28. Spiral screening and drying mechanism; 281. Spiral screen; 282. Spiral connecting plate; 283. Microwave dryer; 284. Microwave reflective coating; 29. ​​Opening; 30. Receiving tray; 31. Waste outlet; 32. Gathering tray; 33. Push plate; 34. Discharge outlet; 35. Conveying auger; 36. Mounting plate; 37. Scraper; 38. Pressure sensor; 39. Air outlet; 40. Air inlet; 41. Gathering tray. Detailed Implementation

[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] Please see Figure 1-10 This invention provides a technical solution: a deodorizing plant-based cat litter preparation device, such as... Figure 1 , Figure 3 and Figure 10 As shown, a base plate 2 is fixed to the bottom front side of the column 1, and a pad 3 is suspended above the base plate 2. One end of the pad 3 is welded and fixed to the column 1, and a lower mixing tank 4 is placed above the pad 3. The lower mixing tank 4 is connected to the base plate 2 through a positioning and lifting mechanism 5, and a roller 6 is fixed to the bottom of the lower mixing tank 4.

[0058] In a further embodiment, the positioning and lifting mechanism 5 includes a chute 51, a cone plate 52, a cone groove 53, and a hydraulic cylinder 54. The center of the pad 3 has a chute 51, and the cone plate 52 is slidably installed inside the chute 51. The cone plate 52 is fitted inside the cone groove 53, and the cone groove 53 is located at the bottom of the lower mixing tank 4. The bottom of the cone plate 52 is connected to the hydraulic cylinder 54, and the hydraulic cylinder 54 is fixedly installed at the top of the bottom. The hydraulic cylinder 54 pushes the cone plate 52 up and down, so that the cone plate 52 is completely retracted into the bottom of the pad 3, so as to avoid affecting the movement of the lower mixing tank 4. At the same time, the shape of the cone plate 52 and the cone groove 53 are matched to guide the movement trajectory of the lower mixing tank 4, correct the placement position of the lower mixing tank 4 during the lifting process, and facilitate the accurate fitting and sealing of the lower mixing tank 4 and the upper mixing tank 7.

[0059] like Figure 1 and Figure 2 As shown, an upper mixing tank 7 is attached to the top of the lower mixing tank 4, and a top cover 8 is installed on the top of the upper mixing tank 7. A stirring motor 9 is fixedly installed on the top of the top cover 8, and one end of the stirring motor 9 is connected to the stirring paddle 10. The stirring paddle 10 is located inside the upper mixing tank 7 and the lower mixing tank 4. The upper mixing tank 7 is fixedly installed on the front side of the column 1, and the column 1 and the top cover 8 are connected by a first lead screw drive device 11.

[0060] like Figure 1 , Figure 6 and Figure 10 As shown, a feed hopper 12 is fixedly installed on the left side of the upper mixing tank 7, and the bottom of the feed hopper 12 is connected to the left side of the upper mixing tank 7. A powder screen 13 is fixedly installed on the lower side inside the feed hopper 12, and a bidirectional dispersing mechanism 14 is installed on the upper side inside the feed hopper 12. The bidirectional dispersing mechanism 14 is located above the powder screen 13.

[0061] In a further embodiment, the bidirectional dispersing mechanism 14 includes a support platform 141, an outer rotating cylinder 142, an inner rotating cylinder 143, blades 144, a driven bevel gear 145, a first motor 146, and a driving bevel gear 147. The support platform 141 is fixedly installed inside the feed hopper 12, and the outer rotating cylinder 142 is rotatably mounted on the bottom of the support platform 141. The inner rotating cylinder 143 is rotatably mounted inside the outer rotating cylinder 142, and blades 144 are fixedly mounted on the bottom of both the inner rotating cylinder 143 and the outer rotating cylinder 142. Driven bevel gears 145 are mounted on the top of both the outer rotating cylinder 142 and the inner rotating cylinder 143. The driven bevel gears 145 are meshed with the driving bevel gear 147. The first motor 146 is fixedly mounted. Installed on the right side of the feed hopper 12, the first motor 146 passes through the feed hopper 12 and is connected to the driving bevel gear 147. At the same time, both the driving bevel gear 147 and the driven bevel gear 145 are set inside the support platform 141. The rotation direction of the outer rotating cylinder 142 is opposite to that of the inner rotating cylinder 143. The support platform 141 closes the driven bevel gear 145 and the driving bevel gear 147 to prevent powder from entering the connection between the driven bevel gear 145 and the driving bevel gear 147 and causing damage to the connection. The first motor 146 drives the two blades 144 to rotate in opposite directions through the cooperation of the driven bevel gear 145 and the driving bevel gear 147, which increases the impact force on the raw materials and makes it easier to crush the agglomerated raw materials.

[0062] like Figure 1 and Figure 7 As shown, a workbench 15 is placed to the right of the column 1, and a mounting bracket 16 is fixed on the top of the workbench 15. Pressure rollers 17 are rotatably mounted on both sides of the mounting bracket 16. The outer side of the mounting bracket 16 is covered with a shell cover 18, and the shell cover 18 is fixedly connected to the top of the workbench 15.

[0063] In a further embodiment, an mounting plate 36 is fixedly installed on the left side inside the shell cover 18, and a plurality of scrapers 37 are evenly installed on the mounting plate 36. A pressure sensor 38 is installed at the connection between the scraper 37 and the mounting plate 36. The scraper 37 is set close to the surface of the ring die 19 on the side near the ring die 19, and the scraper 37 is set in correspondence with the die holes 24. Each scraper 37 corresponds to a ring of die holes 24 at the same height on the ring die 19. When the ring die 19 rotates, the scraper 37 cuts off the raw material extruded from the corresponding ring of die holes 24. At the same time, the pressure sensor 38 detects the scraper 37 set in correspondence, so as to facilitate real-time monitoring of whether a certain scraper 37 has cut off the corresponding die hole 24.

[0064] like Figure 1 and Figure 7 As shown, a ring mold 19 is rotatably mounted inside the shell cover 18, and the inner side of the ring mold 19 is fitted with the pressure roller 17.

[0065] In a further embodiment, a push plate 33 is fixed at the bottom of the ring mold 19, and a discharge port 34 is opened on the right side of the worktable 15. The discharge port 34 is connected to the left end of the conveying auger 35. The right end of the conveying auger 35 passes through the center of the drying cylinder 26 and is rotatably connected to the drying cylinder 26. The push plate 33 rotates with the ring mold 19, which facilitates the push plate 33 to push the falling plant cat litter to rotate on the worktable 15 and rotate to the discharge port 34 and fall into the conveying auger 35 from the discharge port 34. The conveying auger 35 has evenly opened sprinkling ports in the drying cylinder 26, which facilitates the even sprinkling of plant cat litter inside the drying cylinder 26.

[0066] like Figure 1 , Figure 4 , Figure 7 and Figure 9 As shown, a driven wheel 20 is fixed on the top of the ring mold 19, and the driven wheel 20 is meshed with the driving wheel 21. The driving wheel 21 is connected to the servo motor 22 fixedly installed on the top of the cover 18. A blockage clearing mechanism 23 is provided inside the rear side of the cover 18 and cooperates with the rear side of the mounting bracket 16. Mold holes 24 are evenly opened on the surface of the ring mold 19.

[0067] In a further embodiment, the unblocking mechanism 23 includes a first electric push rod 231, a first movable frame 232, a sealing groove 233, a slide 234, a second screw lifting device 235, a second movable frame 236, a second electric push rod 237, a laser ablation device 238, a high-pressure water nozzle 239, and an angular displacement sensor 2310. The first movable frame 232 is mounted on the rear side of the mounting bracket 16 via the first electric push rod 231, and the surface of the first movable frame 232 is provided with a sealing groove 233. The slide 234 is mounted on the rear side of the cover 18 via the second screw lifting device 235. The second movable frame 236 is mounted on the slide 234 via the second electric push rod 237. A laser ablation device 238 and a high-pressure water nozzle 239 are fixedly installed on one side near the ring mold 19, with the high-pressure water nozzle 239 positioned below the laser ablation device 238. An angular displacement sensor 2310 is installed at the connection between the ring mold 19 and the cover 18. The angular displacement sensor 2310 monitors the rotation angle of the ring mold 19 in real time, facilitating accurate positioning of the specific mold hole 24. The first electric push rod 231 pushes the first movable frame 232 to fit and seal the inner side of the ring mold 19, while the second electric push rod 237 pushes the laser ablation device 238 or the high-pressure water nozzle 239 to seal the outer side of the ring mold 19. At the same time, wastewater and waste debris are sucked out by an external negative pressure suction device to prevent wastewater and waste debris from flowing out and contaminating the inside of the ring mold 19.

[0068] like Figure 1 , Figure 5 and Figure 8As shown, a support 25 is placed on the right side of the workbench 15, and a drying cylinder 26 is rotatably mounted on the top of the support 25. A second motor 27 is fixedly mounted on the right side of the support 25 and is connected to the drying cylinder 26. A spiral screening and drying mechanism 28 is fixedly mounted inside the drying cylinder 26.

[0069] In a further embodiment, the spiral sieving and drying mechanism 28 includes a spiral screen 281, a spiral connecting plate 282, a microwave dryer 283, and a microwave reflective coating 284. The spiral screen 281 is fixed inside the spiral connecting plate 282, and the spiral connecting plate 282 is fixedly installed inside the drying cylinder 26. The microwave dryer 283 is fixedly installed on the surface of the spiral connecting plate 282, and the surface of the spiral connecting plate 282 is provided with a microwave reflective coating 284. The microwave dryer 283 emits microwaves, and the microwave reflective coating 284 reflects the microwaves, so that the microwaves are repeatedly reflected inside the drying cylinder 26, which facilitates the uniform heating of the plant cat litter by the reflected microwaves and completes the drying process.

[0070] like Figure 1 As shown, the bottom of the drying cylinder 26 has an opening 29.

[0071] In a further embodiment, an air outlet 39 is provided on the right side of the drying cylinder 26, and an air inlet 40 is provided inside the opening 29. The air inlet 40 is connected to the air gathering plate 41, and the air gathering plate 41 is fixedly installed on the left side of the bracket 25. The external drying air source enters the drying cylinder 26 from the air gathering plate 41 and the air inlet 40. Then, the drying air source carries the evaporated water vapor and is discharged from the air outlet 39. The air outlet 39 is connected to an external negative pressure suction device. The external negative pressure suction device restricts the flow path of the airflow and enhances the flow rate of the airflow.

[0072] like Figure 1 As shown, a receiving tray 30 is fixedly installed at the bottom of the support 25, and the receiving tray 30 is located below the opening 29. A waste outlet 31 is opened on the rear side of the drying cylinder 26, and the waste outlet 31 is connected to the material collection tray 32. At the same time, the material collection tray 32 is fixedly installed on the right side of the support 25.

[0073] A method for preparing deodorizing plant-based cat litter includes the following steps:

[0074] (1) Mixing raw materials

[0075] a. Powdered raw materials are poured into the feed hopper 12. The first motor 146 drives the blades 144 on the inner rotating drum 143 and the outer rotating drum 142 to rotate. Then the two blades 144 work together to break up the powder. The powder passes through the powder screen 13 and enters the upper mixing tank 7 and the lower mixing tank 4. The slurry is poured directly into the upper mixing tank 7 and the lower mixing tank 4.

[0076] b. The stirring motor 9 drives the stirring paddle 10 to rotate, and the stirring paddle 10 stirs the powder and slurry, so that the raw materials are evenly mixed inside the first and second stirring tanks.

[0077] (2) Raw material separation and aging

[0078] a. The hydraulic cylinder 54 drives the conical plate to descend, causing the conical plate to disengage from the conical groove, causing the lower mixing tank 4 to disengage from the upper mixing tank 7, and pushing the lower mixing tank 4 to the placement location.

[0079] b. Seal the lower mixing tank 4 and let it stand for 24 hours to complete the aging process.

[0080] (3) Raw material granulation

[0081] a. The aged raw material is poured into the shell 18. The servo motor 22 drives the ring die 19 to rotate. The ring die 19 and the pressure roller 17 work together to squeeze the raw material, so that the raw material is squeezed out from the die hole 24.

[0082] b. When the ring die 19 rotates, the scraper 37 squeezes and cuts the plant-based cat litter squeezed out of the die hole 24, causing the plant-based cat litter to fall onto the workbench 15.

[0083] (4) Locating and clearing blockages in die hole 24

[0084] a. Each scraper 37 independently cuts off the plant-based cat litter extruded from a die hole 24. At the same time, the pressure sensor 38 monitors the force on the scraper 37 in real time. When no material is detected in the die hole 24, the angular displacement sensor 2310 records the corresponding position of the die hole 24.

[0085] b. After the blocked die hole 24 rotates to a specific position with the ring die 19, the first electric push rod 231 pushes the sealing groove 233 to fit tightly against the inner side of the ring die 19, and the second electric push rod 237 pushes the laser ablation device 238 and the high-pressure water nozzle 239 to approach the outer side of the sealing groove 233. The second screw lifting mechanism pushes the laser ablation device 238 and the high-pressure water nozzle 239 to adjust their height. The laser ablation device 238 first ablates the blockage material in the die hole 24, and then the high-pressure water nozzle 239 flushes the die hole 24. The flushed waste material enters the sealing groove 233 and is discharged.

[0086] (5) Drying and screening

[0087] a. The conveying auger 35 pushes the cat litter into the drying cylinder 26. The second motor 27 drives the drying cylinder 26 to rotate. At this time, the cat litter moves around the spiral screen 281 inside the drying cylinder 26. During the movement, the cat litter debris moves through the spiral screen 281 to the spiral receiving plate 282 until the debris rotates to the outermost side of the spiral receiving plate 282 and is poured into the material collection tray 32.

[0088] b. The microwave dryer 283 on the surface of the spiral plate 282 emits microwaves, and at the same time the microwave reflective coating 284 reflects the microwaves to heat the cat litter in all directions and angles. The moisture in the cat litter enters the air, and the fan draws the air through the air outlet 39. The drying source delivers dry air from the air collecting plate 41 and the air inlet 40. The air flows in the opposite direction of the movement of the cat litter and carries away the humid and hot air.

[0089] In use, the raw materials are poured into the feed hopper 12, and the first motor 146 is started. The first motor 146 drives the outer rotating drum 142 and the inner rotating drum 143 to rotate through the cooperation of the driving bevel gear 147 and the driven bevel gear 145. The two blades 144 on the outer rotating drum 142 and the inner rotating drum 143 rotate in opposite directions and disperse the raw materials in the feed hopper 12, so that the raw materials are in powder form and pass through the powder screen 13 and slide into the upper mixing tank 7 and the lower mixing tank 4. Then, the stirring motor 9 is started, and the stirring motor 9 drives the stirring paddle 10 to premix. Then, the first lead screw drive device 11 is started, and the first lead screw drive device 11 drives the top cover 8 and the stirring paddle 10 to rise, and the slurry is added from the top of the upper mixing tank 7. Similarly, the stirring paddle 10 descends, and the stirring motor 9 drives the stirring paddle 10 to descend. The mixing paddle 10 mixes and stirs the raw materials. After mixing, the first lead screw drive device 11 drives the top cover 8 and the mixing paddle 10 to rise, causing the mixing paddle 10 to detach from the lower mixing tank 4. The hydraulic cylinder 54 is activated, driving the cone plate 52 to descend, causing the lower mixing tank 4 to descend under gravity and be placed on the pad 3. The cone plate 52 descends along the slide groove 51 and retracts completely into the bottom of the pad 3, causing the cone plate 52 to detach from the cone groove 53. At the same time, the lower mixing tank 4 detaches from the upper mixing tank 7 and is moved to the placement location by the roller 6. The lower mixing tank 4 is placed for 24 hours to complete aging. At the same time, a new lower mixing tank 4 is replaced for subsequent mixing and stirring processing. The aged raw materials are poured into the ring mold 19, and the servo motor 22 is activated. Motor 22 drives ring die 19 to rotate via drive wheel 21 and driven wheel 20. Ring die 19 and pressure roller 17 work together to squeeze raw material, which is then extruded through die hole 24. Scraper 37, which is attached to the outside of ring die 19, cuts the raw material, turning it into plant-based cat litter that falls onto the surface of worktable 15. Push plate 33 rotates with ring die 19 and pushes the plant-based cat litter, moving it to discharge port 34 and into conveying auger 35. Conveying auger 35 pushes the plant-based cat litter into the center of drying cylinder 26 and evenly sprinkles it onto the center of drying cylinder 26 through evenly set sprinkling ports. Second motor 27 drives drying cylinder 26 to rotate, and the plant-based cat litter in the center of drying cylinder 26 moves along spiral screen 281. At the same time, the debris screened by spiral screen 281 falls onto spiral receiving plate 282. On the surface, a microwave dryer 283 installed on the spiral plate 282 emits microwaves, while a microwave reflective coating 284 reflects the microwaves, allowing the microwaves to evenly heat the plant litter and dry the moisture. An external drying air source enters the drying cylinder 26 from the air collecting plate 41 and the air inlet 40. The drying gas moves along the spiral plate 282 from the outside of the drying cylinder 26 to the center of the drying cylinder 26. During the movement, the dry air carries evaporated water vapor and is discharged from the air outlet 39. An external negative pressure suction device is connected to the air outlet 39 and sucks in the gas. The external negative pressure suction device, in conjunction with the external drying air source, limits the gas flow path and increases the gas flow rate, further improving the drying effect. After drying, the plant litter rotates to the outside of the drying cylinder 26 and falls into the receiving tray 30 from the opening 29.The screened debris moves along the spiral receiving plate 282 and slides into the receiving tray 30 through the waste port 31, where it is then uniformly recycled and reused. During the processing, the pressure sensor 38 monitors the pressure of the scraper 37 in real time. If the die hole 24 is blocked and the scraper 37 fails to cut the material corresponding to the die hole 24, the angular displacement sensor 2310 calculates the position of the corresponding die hole 24. The servo motor 22 accurately drives the ring die 19 to rotate a specific angle, so that the blocked die hole 24 is aligned with the first movable frame 232 and the second movable frame 236. The first electric push rod 231 pushes the first movable frame 232 to fit against the inner side of the ring die 19, while the second... The two-screw lifting device 235 adjusts the height of the slide 234. The second electric push rod 237 pushes the laser ablation device 238 on the second movable frame 236 to fit against the outside of the blocked die hole 24. The laser ablation device 238 ablates the raw material inside the blocked die hole 24. Similarly, the high-pressure water nozzle 239 is replaced and fitted against the outside of the blocked die hole 24. External water is sprayed from the high-pressure water nozzle 239 and flushes the blocked die hole 24. The external negative pressure suction device sucks up wastewater and waste debris through the sealing groove 233, preventing wastewater and waste debris from contaminating the inside of the ring die 19. This greatly shortens maintenance time and reduces maintenance difficulty, improving granulation efficiency.

[0090] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0091] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0092] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A deodorizing plant-based cat litter preparation device, comprising a column (1), a positioning and lifting mechanism (5), an upper mixing tank (7), a mixing motor (9), a feeding hopper (12), a bidirectional dispersing mechanism (14), a worktable (15), a blockage clearing mechanism (23), a drying cylinder (26), and a spiral screening and drying mechanism (28), characterized in that: The bottom of the front side of the column (1) is fixed with a base plate (2), and a pad (3) is suspended above the base plate (2). One end of the pad (3) is welded and fixed to the column (1), and a lower mixing tank (4) is placed above the pad (3). The lower mixing tank (4) is connected to the base plate (2) through a positioning and lifting mechanism (5), and a roller (6) is fixedly installed at the bottom of the lower mixing tank (4). An upper mixing tank (7) is attached to the top of the lower mixing tank (4), and a top cover (8) is installed on the top of the upper mixing tank (7). A stirring motor (9) is fixedly installed on the top of the top cover (8), and one end of the stirring motor (9) is connected to the stirring paddle (10). At the same time, the stirring paddle (10) is located inside the upper mixing tank (7) and inside the lower mixing tank (4). The upper mixing tank (7) is fixedly installed on the front side of the column (1), and the column (1) and the top cover (8) are connected through a first screw drive device (11). A feeding hopper (12) is fixedly installed on the left side of the upper mixing tank (7), and the bottom of the feeding hopper (12) is connected to the left side of the upper mixing tank (7). A powder screen (13) is fixedly installed on the lower side inside the feeding hopper (12), and a bidirectional dispersing mechanism (14) is installed on the upper side inside the feeding hopper (12). The bidirectional dispersing mechanism (14) is located above the powder screen (13). A workbench (15) is placed to the right of the column (1), and a mounting bracket (16) is fixed on the top of the workbench (15). Pressure rollers (17) are rotatably mounted on both sides of the mounting bracket (16). A shell cover (18) covers the outside of the mounting bracket (16), and the shell cover (18) is fixedly connected to the top of the workbench (15). A ring mold (19) is rotatably mounted inside the shell cover (18), and the inner side of the ring mold (19) is fitted with the pressure rollers (17). A driven wheel (20) is fixed on the top of the ring mold (19), and the driven wheel (20) is meshed with the driving wheel (21). The driving wheel (21) is connected to a servo motor (22) fixedly mounted on the top of the shell cover (18). A blockage clearing mechanism (23) is provided on the rear side of the shell cover (18) in cooperation with the rear side of the mounting bracket (16). The surface of the ring mold (19) is evenly provided with mold holes (24). A support (25) is placed on the right side of the workbench (15), and a drying cylinder (26) is rotatably installed on the top of the support (25). A second motor (27) is fixedly installed on the right side of the support (25), and the second motor (27) is connected to the drying cylinder (26). A spiral screening and drying mechanism (28) is fixedly installed inside the drying cylinder (26). An opening (29) is opened at the bottom of the drying cylinder (26). A receiving tray (30) is fixedly installed at the bottom of the support (25), and the receiving tray (30) is located below the opening (29). A waste port (31) is opened on the rear side of the drying cylinder (26), and the waste port (31) is connected to the material collection tray (32). At the same time, the material collection tray (32) is fixedly installed on the right side of the support (25).

2. The deodorizing plant-based cat litter preparation equipment according to claim 1, characterized in that: The positioning and lifting mechanism (5) includes a chute (51), a cone plate (52), a cone groove (53), and a hydraulic cylinder (54). The center of the pad (3) is provided with a chute (51), and the cone plate (52) is slidably installed inside the chute (51). The cone plate (52) is fitted inside the cone groove (53), and the cone groove (53) is located at the bottom of the lower mixing tank (4). The bottom of the cone plate (52) is connected to the hydraulic cylinder (54), and the hydraulic cylinder (54) is fixedly installed at the bottom top.

3. The deodorizing plant-based cat litter preparation equipment according to claim 2, characterized in that: The bidirectional dispersing mechanism (14) includes a support platform (141), an outer rotating cylinder (142), an inner rotating cylinder (143), blades (144), a driven bevel gear (145), a first motor (146), and a driving bevel gear (147). The support platform (141) is fixedly installed inside the feed hopper (12), and the outer rotating cylinder (142) is rotatably installed at the bottom of the support platform (141). The inner rotating cylinder (143) is rotatably installed inside the outer rotating cylinder (142), and blades (144) are fixed at the bottom of both the inner rotating cylinder (143) and the outer rotating cylinder (142). Both the top of the outer rotating cylinder (142) and the top of the inner rotating cylinder (143) are equipped with driven bevel gears (145), which mesh with the driving bevel gears (147). The first motor (146) is fixedly installed on the right side of the feed hopper (12), and the first motor (146) passes through the feed hopper (12) and is connected to the driving bevel gears (147). At the same time, the driving bevel gears (147) and the driven bevel gears (145) are both located inside the support platform (141). The rotation direction of the outer rotating cylinder (142) is opposite to that of the inner rotating cylinder (143).

4. The deodorizing plant-based cat litter preparation equipment according to claim 3, characterized in that: An installation plate (36) is fixedly installed on the left side inside the shell cover (18), and multiple scrapers (37) are evenly installed on the installation plate (36). A pressure sensor (38) is installed at the connection between the scraper (37) and the installation plate (36). The scraper (37) is attached to the surface of the ring mold (19) on the side close to the ring mold (19), and the scraper (37) is correspondingly set with the mold hole (24).

5. The deodorizing plant-based cat litter preparation equipment according to claim 4, characterized in that: The bottom of the ring mold (19) is fixed with a push plate (33), and the right side of the workbench (15) is provided with a discharge port (34), and the discharge port (34) is connected to the left end of the conveying auger (35). The right end of the conveying auger (35) passes through the center of the drying cylinder (26) and is rotatably connected to the drying cylinder (26).

6. The deodorizing plant-based cat litter preparation equipment according to claim 5, characterized in that: The unblocking mechanism (23) includes a first electric push rod (231), a first movable frame (232), a sealing groove (233), a slide (234), and a second lead screw lifting device (235). The second movable frame (236), the second electric push rod (237), the laser ablation device (238), the high-pressure water nozzle (239) and the angular displacement sensor (2310) are provided. The first movable frame (232) is installed on the rear side of the mounting frame (16) via the first electric push rod (231), and the surface of the first movable frame (232) is provided with a sealing groove (233). The slide (234) is installed on the rear side of the shell cover (18) via the second screw lifting device (235). The second movable frame (236) is installed on the slide (234) via the second electric push rod (237). The laser ablation device (238) and the high-pressure water nozzle (239) are fixedly installed on the side of the second movable frame (236) near the ring mold (19), and the high-pressure water nozzle (239) is located below the laser ablation device (238). An angular displacement sensor (2310) is installed at the connection between the ring mold (19) and the shell cover (18).

7. The deodorizing plant-based cat litter preparation equipment according to claim 6, characterized in that: The spiral screening and drying mechanism (28) includes a spiral screen (281), a spiral connecting plate (282), a microwave dryer (283), and a microwave reflective coating (284). The spiral screen (281) is fixed inside the spiral connecting plate (282), and the spiral connecting plate (282) is fixedly installed inside the drying cylinder (26). The microwave dryer (283) is fixedly installed on the surface of the spiral connecting plate (282), and the surface of the spiral connecting plate (282) is provided with a microwave reflective coating (284).

8. The deodorizing plant-based cat litter preparation equipment according to claim 7, characterized in that: The drying cylinder (26) has an air outlet (39) on the right side, and an air inlet (40) is provided inside the opening (29). The air inlet (40) is connected to the air gathering plate (41), and the air gathering plate (41) is fixedly installed on the left side of the bracket (25).

9. A method for preparing cat litter using the deodorizing plant-based cat litter preparation equipment according to claim 8, characterized in that: Includes the following steps: (1) Mixing raw materials a. Powdered raw materials are poured into the feed hopper (12). The first motor (146) drives the blades (144) on the inner rotating drum (143) and the outer rotating drum (142) to rotate. Then the two blades (144) work together to break up the powder. The powder passes through the powder screen (13) and enters the upper mixing tank (7) and the lower mixing tank (4). The slurry is poured directly into the upper mixing tank (7) and the lower mixing tank (4). b. The stirring motor (9) drives the stirring paddle (10) to rotate, and the stirring paddle (10) stirs the powder and slurry, so that the raw materials are evenly mixed inside the first and second mixing tanks. (2) Raw material separation and aging a. The hydraulic cylinder (54) drives the conical plate to descend, causing the conical plate to disengage from the conical groove, causing the lower mixing tank (4) to disengage from the upper mixing tank (7), and pushing the lower mixing tank (4) to move to the placement location. b. Seal the lower mixing tank (4) and let it stand for 24 hours to complete the aging process; (3) Raw material granulation a. The aged raw material is poured into the shell cover (18). The servo motor (22) drives the ring die (19) to rotate. The ring die (19) and the pressure roller (17) work together to squeeze the raw material, so that the raw material is squeezed out from the die hole (24). b. When the ring die (19) rotates, the scraper (37) squeezes and cuts the plant cat litter squeezed out of the die hole (24), causing the plant cat litter to fall onto the workbench (15); (4) Locating and clearing blockages in the die hole (24) a. Each scraper (37) independently cuts off the plant cat litter extruded from a die hole (24). At the same time, the pressure sensor (38) monitors the force on the scraper (37) in real time. When no material is detected in the die hole (24), the angular displacement sensor (2310) records the corresponding die hole (24) position. b. After the blocked die hole (24) rotates to a specific position with the ring die (19), the first electric push rod (231) pushes the sealing groove (233) to fit tightly against the inner side of the ring die (19), and the second electric push rod (237) pushes the laser ablation device (238) and the high-pressure water nozzle (239) to approach the outer side of the sealing groove (233). The second screw lifting mechanism pushes the laser ablation device (238) and the high-pressure water nozzle (239) to adjust their height. The laser ablation device (238) first ablates the blockage material in the die hole (24), and then the high-pressure water nozzle (239) flushes the die hole (24). The flushed waste material enters the sealing groove (233) and is discharged. (5) Drying and screening a. The conveying auger (35) pushes the cat litter into the drying cylinder (26). The second motor (27) drives the drying cylinder (26) to rotate. At this time, the cat litter moves around the spiral screen (281) inside the drying cylinder (26). During the movement, the cat litter debris moves through the spiral screen (281) to the spiral receiving plate (282) until the debris rotates to the outermost side of the spiral receiving plate (282) and is poured into the material collection tray (32). b. The microwave dryer (283) on the surface of the spiral plate (282) emits microwaves, and at the same time the microwave reflective coating (284) reflects the microwaves to heat the cat litter in all directions and angles. The water vapor in the cat litter enters the air, and the fan draws air through the air outlet (39). The drying source delivers dry air from the air gathering plate (41) and the air inlet (40). The air flows in the opposite direction of the movement of the cat litter and carries away the hot and humid air.

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