Organic garbage screening and fermenting equipment and method thereof

Abstract

The invention discloses screening fermentation equipment and method for organic garbage, relates to the field of garbage treatment, and aims to solve the problem that due to the influence of the volume of the organic garbage, the fermentation duration of the organic garbage in fermentation liquor is different, and in order to guarantee the fermentation effect, the whole fermentation process of the organic garbage is too long in consumed time. Comprising a rack and a material storage frame, the material storage frame is fixedly installed above the rack, the material storage frame is sequentially provided with a filtering area, a crushing area and a machine box from left to right, a fermentation box is arranged below the filtering area, the fermentation box is fixedly connected with the rack, a first feeding port is formed in the upper end of the fermentation box, and a vibrating screen is arranged at the communicating position of the first feeding port and the filtering area; a material scraping plate is arranged above the vibrating screen, the material scraping plate is in sliding connection with the material storage frame, a rotary cutter is rotationally connected into the crushing area, and a second feeding opening communicated with the crushing area is formed in the side face of the fermentation box. The organic garbage fermentation device has the advantages that organic garbage is crushed and filtered through the filtering area and the crushing area, the size of the organic garbage is reduced, and the fermentation duration is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of garbage disposal, and in particular to a screening and fermentation device for organic garbage and a method thereof. Background Art

[0002] In modern urban life, the treatment of organic waste has always been an important issue in urban environmental sanitation management. If organic waste, such as kitchen waste, fruit and vegetable waste, crop straw and livestock and poultry manure, is not handled in time, it will not only occupy a large amount of land resources, but also may produce odor and pollutants, causing serious impacts on the environment.

[0003] The patent with application number "CN202410331624.5" discloses: a food waste fermentation treatment device, comprising a trough body and a forward material propeller and a reverse material propeller arranged side by side in the inner cavity of the trough body along the width direction of the trough body, and the rotation directions of the forward material propeller and the reverse material propeller are opposite, a partition is arranged at the bottom center of the inner cavity of the trough body, the partition divides the inner cavity of the trough body into three areas: a first stirring chamber, a second stirring chamber and a connecting chamber, the forward material propeller and the reverse material propeller are respectively located in the first stirring chamber and the second stirring chamber, the high-speed rotating forward material propeller and the low-speed rotating reverse material propeller form the mixed material into two vortices with opposite travel directions; this application improves the mixing efficiency of materials of different particle sizes in their most suitable environment by cleverly setting the mixing area and the connecting area.

[0004] Although the above application improves the mixing efficiency by optimizing the stirring method, the fermentation process still takes a long time due to the different volumes and compositions of organic waste. Since the waste fermentation process requires a certain amount of time for microbial decomposition, it still takes a long time to complete the fermentation process when processing large-scale organic waste. This not only increases the operating cost of the equipment, but also limits the processing capacity of the equipment. The stirring device usually stirs the organic waste in the fermentation liquid. However, some organic waste will become soft after soaking. These softened wastes are easy to entangle on the stirring blades, which not only reduces the stirring efficiency, but also may cause damage to the stirring device and increase the maintenance cost of the equipment. In addition, the entangled organic waste may also cause uneven distribution of the fermentation liquid, affecting the final fermentation effect. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a screening and fermentation device and method for organic waste. Through this design, the problem of the overall fermentation process of organic waste taking too long is effectively solved due to the influence of the volume of organic waste and the different fermentation times of organic waste in the fermentation liquid in order to ensure the fermentation effect.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the present invention comprises a frame and a material storage rack, the material storage rack is fixedly installed above the frame, the material storage rack is provided with a filtering area, a crushing area and a machine box from left to right in sequence, a fermentation box is provided below the filtering area, the fermentation box is fixedly connected to the frame, a first feed port is provided at the upper end of the fermentation box, a vibrating screen is provided at the connection between the first feed port and the filtering area, a scraper is provided above the vibrating screen, the scraper is slidably connected to the material storage rack, a rotary cutter is rotatably connected in the crushing area, and a second feed port connected to the crushing area is provided on the side of the fermentation box; The storage rack is provided with a slide groove and a slideway, the slideway is located above the slide groove, guard plates are fixedly connected on both sides of the scraper plate, the front side of the guard plate is rotatably connected to a first roller, the first roller is located in the slide groove, a second roller is provided on the upper left of the first roller, the second roller is eccentrically rotatably connected to the guard plate, and the second roller is located above the slideway.

[0007] Preferably, scraping teeth are fixedly connected to the bottom of the scraper plate, and the scraping teeth correspond to the screen holes of the vibrating screen. A chute is provided on the storage rack on the left side of the vibrating screen, and the chute is connected to the crushing zone.

[0008] Preferably, a support plate is fixedly connected to the guard plate, a connecting block is hinged on the front side of the support plate, a first telescopic rod is installed between the connecting block and the storage rack, and the support plate, the connecting plate and the first telescopic rod are all located in a slide groove.

[0009] Preferably, the crushing zone includes a feed opening, the feed opening is located on a material storage rack, a shell is fixedly connected below the feed opening, the shell is fixedly connected to the material storage rack, and the rotary cutter is rotatably installed in the shell.

[0010] Preferably, the rotary cutter includes a cutter shaft, one end of the cutter shaft is fixedly connected to a first connecting rod, a second connecting rod is hinged on the first connecting rod, the other end of the cutter shaft is rotatably connected to a sleeve rotating in the same direction, a third connecting rod is fixedly connected to the sleeve, and a blanking assembly is hinged between the second connecting rod and the third connecting rod.

[0011] Preferably, the unloading assembly includes a first support rod and a second support rod, the first support rod is hinged to the second connecting rod, the second support rod is hinged to the third connecting rod, and a plurality of cleaning blocks distributed at equal intervals are fixedly connected to the first support rod and the second support rod.

[0012] Preferably, a connecting rod is fixedly connected to the sleeve, an internal gear is fixedly connected to the connecting rod, a driving gear is meshed inside the internal gear, a connecting gear is meshed on the other side of the driving gear, the connecting gear is fixedly connected to the cutter shaft, and the driving gear is coaxially fixedly connected to a driving pulley.

[0013] Preferably, a pressing plate is provided above the discharge port, and support rods are fixedly connected to both ends of the pressing plate. The support rod is hinged to the chassis, and an elastic member is connected between the support rod and the chassis. The elastic member applies upward force to the support rod, and the chassis is fixedly connected to a second telescopic rod, and the second telescopic rod is located above the support rod.

[0014] Preferably, the storage rack, the fermentation box and the frame are stacked in order from top to bottom, and the organic waste enters the filter area on the left side of the storage rack from above the storage rack, and the filter area in the storage rack screens and filters the organic waste, and small particles and liquid enter the fermentation box from the first feed port through the filter area, and the scraper plate slides back and forth between the filter area and the crushing area, and the large particles of organic waste that are not filtered in the filter area are pushed to the crushing area under the action of the scraper plate, and the crushing area crushes the large particles of organic waste, and the crushed organic waste enters the fermentation box through the second feed port. The volume of the organic waste in the fermentation box becomes smaller after screening and crushing, which can improve the decomposition efficiency of the waste in the fermentation box.

[0015] Compared with the prior art, the present invention has the following outstanding advantages: The present invention provides a filtering area and a crushing area on the material storage rack. The filtering area filters the organic waste, and the filtered organic waste is shredded in the crushing area, so that the volume of the organic waste in the fermentation box is reduced, so that the fermentation liquid and the organic waste are fully mixed, which helps to improve the fermentation efficiency of the organic waste.

[0016] After the organic waste in the crushing area of ​​the present invention is screened, the moisture in the organic waste is reduced, the organic waste is better cut when the rotary cutter rotates, and the organic waste is prevented from being entangled on the rotary cutter, which is convenient for subsequent maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall first axis side structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall second axis side structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the connection structure of the vibrating screen of the present invention.

[0020] Figure 4 It is a schematic diagram of the chute connection structure of the present invention.

[0021] Figure 5 It is a schematic diagram of the axial structure of the scraper plate of the present invention.

[0022] Figure 6 It is a schematic diagram of the forward structure of the scraper plate of the present invention.

[0023] Figure 7 It is a schematic diagram of the connection structure of the pressing plate of the present invention.

[0024] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of A.

[0025] Fig. 9 It is a schematic diagram of the connection structure of the fermentation box of the present invention.

[0026] Fig.10 It is a schematic diagram of the rotary cutter structure of the present invention.

[0027] Fig.11 It is a schematic diagram of the structure of the blanking component of the present invention.

[0028] Numbers in the figure: 1, frame; 2, storage rack; 3, filtering area; 4, crushing area; 5, chassis; 6, fermentation box; 7, first feed inlet; 8, vibrating screen; 9, scraper plate; 10, rotary cutter; 1001, cutter shaft; 1002, first connecting rod; 1003, second connecting rod; 1004, bushing; 1005, third connecting rod; 1006, unloading assembly; 10061, first support rod; 10062, second support rod; 10063, cleaning block; 11, second feed port; 12, slide; 13, slideway; 14, guard plate; 15, first roller; 16, second roller; 17, scraper teeth; 18, inclined slot; 19, support plate; 20, connecting block; 21, first telescopic rod; 22, feed port; 23, housing; 24, connecting rod; 25, internal gear; 26, drive gear; 27, connecting gear; 28, drive pulley; 29, press plate; 30, support rod; 31, second telescopic rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Please refer to the attached Figure 1-11, the present embodiment is an organic waste screening and fermentation equipment and method thereof: comprising a frame 1 and a storage rack 2, the storage rack 2 is fixedly installed above the frame 1, the storage rack 2 is provided with a filtering area 3, a crushing area 4 and a chassis 5 from left to right, a fermentation box 6 is provided below the filtering area 3, the fermentation box 6 is fixedly connected to the frame 1, a first feed port 7 is provided at the upper end of the fermentation box 6, a vibrating screen 8 is provided at the connection between the first feed port 7 and the filtering area 3, a scraper plate 9 is provided above the vibrating screen 8, the scraper plate 9 is slidably connected to the storage rack 2, a rotary cutter 10 is rotatably connected in the crushing area 4, and a second feed port 11 communicating with the crushing area 4 is provided on the side of the fermentation box 6.

[0031] The rack 1 is located below the storage rack 2 and the fermentation box 6. There are multiple columns on the bracket that support the storage rack 2 and the fermentation box 6. The height of the column below the fermentation box 6 is lower than the height of the column below the storage rack 2. The fermentation box 6 is located below the left side of the storage rack 2. The length of the storage rack 2 is greater than the length of the fermentation box 6. The storage rack 2 is a topless and bottomless structure. The storage rack 2 is divided into a filtering area 3, a crushing area 4 and a chassis 5 from left to right. The filtering area 3 and the crushing area 4 are used to accommodate organic waste. A power system and a control system are provided in the chassis 5. The power system and the control system are used to regulate the movement of various components on the storage rack 2. The vibrating screen 8 is located between the filtering area 3 and the fermentation box 6. Directly below the vibrating screen 8 is the first feed port 7 of the fermentation box 6. The vibrating screen 8 is a rectangular plate structure with sieve holes. A vibrator is installed on the vibrating screen 8, and the vibrator can drive the vibrating screen 8 to vibrate. The shaking of the vibrating screen 8 drives the shaking of the organic waste on the upper side, thereby improving the filtering efficiency of the organic waste and avoiding the blockage of the screen holes of the vibrating screen 8. The control button of the vibrator is located in the chassis 5, and the rotary cutter 10 is located in the crushing area 4. The rotary cutter 10 rotates at a high speed in the crushing chamber. The blade distribution spacing of the rotary cutter 10 is small. The organic waste entering the crushing area 4 is disassembled under the high-speed rotation of the rotary cutter 10, thereby reducing the overall volume of the organic waste. After the organic waste is disassembled, it enters the fermentation box 6 from the second feed port 11. The small volume of organic waste can be fully in contact with the fermentation liquid, thereby improving the efficiency of the fermentation treatment of the organic waste in the fermentation box 6.

[0032] The storage rack 2 is provided with a slide groove 12 and a slideway 13, and the slideway 13 is located above the slide groove 12. Guard plates 14 are fixedly connected on both sides of the scraper plate 9. The front side of the guard plate 14 is rotatably connected to a first roller 15, and the first roller 15 is located in the slide groove 12. A second roller 16 is provided on the upper left of the first roller 15, and the second roller 16 is eccentrically rotatably connected to the guard plate 14, and the second roller 16 is located above the slideway 13.

[0033] The storage rack 2 has a chute 12 and a slide 13 on both the front and rear sides. The height of the slide 13 is higher than the height of the chute 12. The chute 12 is located on the side of the storage rack 2. The left and right spacing of the guard plate 14 is greater than the width of the scraper plate 9. The scraper plate 9 is installed with guard plates 14 of the same specifications on both sides. The scraper plate 9 and the two guard plates 14 cooperate to form a sideways U-shaped structure, which can increase the amount of organic waste scraped by the scraper plate 9. The two guard plates 14 on both sides are installed with a first roller 15, a second roller 16, a support plate 19, a connecting block 20 and The first telescopic rod 21, wherein the first roller 15 cooperates with the slide groove 12, and the second roller 16 cooperates with the slideway 13. The first roller 15 and the second roller 16, on the one hand, reduce the friction coefficient between the scraper plate 9 and the storage rack 2, so that the static friction between the two is converted into dynamic friction, which is convenient for pushing the scraper plate 9 to move on the storage rack 2. On the other hand, the second roller 16 is eccentrically connected to the guard plate 14. When the second roller 16 is below, it is in contact with the slideway 13. When the second roller 16 moves on the slideway 13, the height of the slideway 13 The second roller 16 is fixed. Due to the eccentric connection of the second roller 16, the height of the connecting shaft between the second roller 16 and the guard plate 14 changes with the rotation of the second roller 16. The second roller 16 drives the left side of the guard plate 14 to have an up and down movement trend. At the same time, the right side of the guard plate 14 is limited by the first roller 15 and the chute 12. Driven by the second roller 16, the guard plate 14 drives the scraper plate 9 to swing back and forth. When the guard plate 14 and the scraper plate 9 move to the left, the reciprocating swing of the guard plate 14 and the scraper plate 9 will cause the lower end of the scraper plate 9 and the upper end of the vibrating screen 8 to generate a friction between the upper end and the lower end of the scraper plate 9. A certain length of spacing is generated, and some large particles of organic waste will be retained on the right side of the scraper plate 9 through this spacing. In this way, when the scraper plate 9 moves to the left, too much organic waste will not be pushed to the left side of the storage rack 2. In the process of the scraper plate 9 moving back to the right, the organic waste on the right side of the scraper plate 9 will rebound upward without being squeezed. The volume of the organic waste is larger than the spacing between the bottom of the scraper plate 9 and the vibrating screen 8. The scraper plate 9 will drive the organic waste to move to the right, thereby transferring the large particles of organic waste to the crushing area 4.

[0034] The vibrating screen 8 is a horizontally arranged horizontal bar structure. In order to make the scraper plate 9 fit more closely with the vibrating screen 8 and avoid the sieve holes of the vibrating screen 8 from being blocked, a plurality of scraper teeth 17 are installed below the scraper plate 9. The lower ends of the scraper teeth 17 are pointed. The scraper teeth 17 can play a crushing effect in the process of moving with the scraper plate 9, which is similar to the existing plow principle, thereby reducing the volume of some organic waste. On the premise of ensuring that the sieve holes of the vibrating screen 8 are unobstructed, some waste is segmented and processed to improve the filtration efficiency in the filtration area 3 and ensure the filtration effect of the organic waste. There is a gap between the filtration area 3 and the crushing area 4 on the storage rack 2. In the process of the scraper plate 9 pushing the organic waste from the filtration area 3 to the crushing area 4, in order to make the organic waste move smoothly to the crushing area 4, there is an inclined slot 18 inclined from the filtration area 3 to the crushing area 4 on the storage rack 2. The inclined slot 18 is a smooth inclined surface. Under the action of the inclined slot 18, the organic waste will be affected by a part of its own gravity, so that the organic waste can flow better from the position of the feed port to the crushing area 4.

[0035] The left and right sliding of the scraper plate 9, the guard plate 14 and the scraper teeth 17 are driven by the extension and retraction of the first telescopic rod 21. The first telescopic rod 21 is a hydraulic rod. There are two first telescopic rods 21. The two first telescopic rods 21 are respectively located in the two slide grooves 12. The extension and shortening of the first telescopic rod 21 are controlled by the hydraulic system in the chassis 5. When the first telescopic rod 21 is extended, the first telescopic rod 21 drives the support plate 19 and the guard plate 14 to move to the right through the connecting plate, and the guard plate 14 drives the scraper plate 9 to move to the right. Conversely, when the first telescopic rod 21 is shortened, the guard plate 14 drives the scraper plate 9 to move to the left.

[0036] The shell 23 in the crushing area 4 is located below the storage rack 2, and the bottom of the shell 23 is inclined toward the position of the fermentation box 6. The rotary cutter 10 is located in the shell 23. The organic waste entering the shell 23 is divided into small pieces after contacting the rotary cutter 10, and the small pieces enter the fermentation box 6 under the action of the inclined surface at the bottom of the shell 23.

[0037] The cutter shaft 1001 at the center of the rotary cutter 10 has two sections, the outer ends of the two sections of the cutter shaft 1001 are rotatably connected to the shell 23, and the inner ends of the two sections of the cutter shaft 1001 are fixedly connected to the first connecting rod 1002. The sum of the lengths of the first connecting rod 1002 and the second connecting rod 1003 is smaller than the third connecting rod 1005. The rotation of the third connecting rod 1005 is driven by the shaft sleeve 1004. The shaft sleeve 1004 and the cutter shaft 1001 have the same rotation direction, but the two have different rotation speeds. The first connecting rod 1002, the second connecting rod 1003, the blanking assembly 1006 and the fourth connecting rod form a four-bar mechanism around the outer diameter of the rotary cutter 10 is smaller than the second connecting rod 1003 and The length difference of the first connecting rod 1002 ensures that the unloading component 1006 will not collide with the rotating cutter 10 when rotating. The rotation speed of the sleeve 1004 is different from that of the rotating cutter 10. When the sleeve 1004 rotates, the sleeve 1004 drives the fourth connecting rod to rotate. Under the action of the four-bar mechanism, the fourth connecting rod drives the unloading component 1006 to revolve around the rotating cutter 10. Under the irregular swing of the unloading component 1006, the unloading component 1006 will push the organic waste to move in the direction of the second feed port 11, thereby improving the crushing efficiency of the rotating cutter 10 and the unloading rate of the crushing zone 4, thereby greatly improving the crushing efficiency of the crushing zone 4.

[0038] The unloading assembly 1006 has a first support rod 10061 and a second support rod 10062. The first support rod 10061 and the second support rod 10062 both have a connection point at one end. The end of the first support rod 10061 is hinged to the second connecting rod 1003, and the end of the second support rod 10062 is hinged to the third connecting rod 1005. There are multiple cleaning blocks 10063 on the first support rod 10061 and the second support rod 10062, and the cleaning blocks 10063 are evenly spaced.

[0039] The input end of the driving pulley 28 is installed on the chassis 5. The driving pulley 28 is controlled to rotate inside the chassis 5. The driving pulley 28 rotates to drive the driving gear 26 to rotate. One side of the driving gear 26 is meshed with the connecting gear 27, and the other side of the driving gear 26 is meshed with the internal gear 25. The rotation of the driving pulley 28 drives the connecting gear 27 and the internal gear 25 to rotate in the same direction.

[0040] The discharge port 22 is located above the crushing zone 4, and the organic waste enters the shell 23 from the discharge port 22. In order to ensure that the organic waste at the discharge port 22 can smoothly enter the shell 23, a pressure plate 29 is installed above the discharge port 22. The main function of the pressure plate 29 is to ensure that the material can be discharged from the discharge port 22 stably and orderly by controlling the pressure of the material. The design of the pressure plate 29 helps to prevent the material from being blocked or flowing disorderly during the discharge process. The front and rear ends of the pressure plate 29 are connected to support rods 30, which support the pressure plate 29. The support rods 30 are hinged to the chassis 5 and are connected to the elastic member. Under the action of , the initial position of the pressing plate 29 is away from the discharge port 22. When the organic waste at the discharge port 22 needs to be cleared, the second telescopic rod 31 will be extended and lengthened, so that the support rod 30 drives the pressing plate 29 to rotate downward, and the pressing plate 29 provides a downward pressure on the organic waste from top to bottom, thereby prompting the organic waste to enter the shell 23 from the position of the discharge port 22. Thereafter, the second telescopic rod 31 is retracted and retracted, and the support rod 30 and the pressing plate 29 are reset under the action of the elastic member. The elastic member refers to a component with good deformation ability, such as a spring, that can restore the support rod 30 to its initial state after rotation.

[0041] The overall working process of the present invention is as follows: organic waste is put in from above the storage rack 2. When the organic waste enters the storage rack 2, it will first fall into the filtering area 3 on the left. This area separates the small particles and liquid in the waste from the larger solid particles through the screening effect of the vibrating screen 8. The small particles and liquid passing through the filtering area 3 will flow smoothly into the fermentation box 6 below through the first feed port 7. In this way, those components that are more easily decomposed can quickly enter the fermentation process. Between the filtering area 3 and the crushing area 4, there is a scraper plate 9 that is constantly sliding back and forth. The main task of the scraper plate 9 is to collect large particles of organic waste that have not passed through the filtering area 3. Under the push of the scraper plate 9, these large particles of waste will be effectively transported to the crushing area 4. These large particles of waste will be Once entering the crushing area 4, the large particles of organic waste will be crushed by the rotating cutter 10. This step ensures that all the garbage particles reach a moderate size to facilitate the subsequent fermentation process. After the crushing process, the size of the garbage particles becomes more uniform. These crushed organic wastes will then pass through the second feed port 11 and flow into the fermentation box 6 below; through the screening and crushing process, the volume of organic waste entering the fermentation box 6 is greatly reduced, which not only improves the space utilization rate in the fermentation box 6, but also allows the garbage to be more fully in contact with the fermentation microorganisms. The garbage particles with reduced volume are more easily decomposed by microorganisms, which means that in the same amount of time, the fermentation box 6 can process more organic waste, and the decomposition produces more biogas or other valuable products.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screening and fermentation device for organic waste, characterized in that: The machine comprises a frame (1) and a material storage frame (2), wherein the material storage frame (2) is fixedly mounted above the frame (1), and the material storage frame (2) is provided with a filtering area (3), a crushing area (4) and a machine box (5) in sequence from left to right; a fermentation box (6) is provided below the filtering area (3), and the fermentation box (6) is fixedly connected to the frame (1); a first feed port (7) is provided at the upper end of the fermentation box (6); a vibrating screen (8) is provided at the connection between the first feed port (7) and the filtering area (3); a scraping plate (9) is provided above the vibrating screen (8), and the scraping plate (9) is slidably connected to the material storage frame (2); a rotating cutter (10) is rotatably connected in the crushing area (4); and a second feed port (11) connected to the crushing area (4) is provided on the side of the fermentation box (6); The material storage rack (2) is provided with a slide groove (12) and a slideway (13), wherein the slideway (13) is located above the slide groove (12), and guard plates (14) are fixedly connected to both sides of the scraper plate (9), and a first roller (15) is rotatably connected to the front side of the guard plate (14), and the first roller (15) is located in the slide groove (12). A second roller (16) is provided on the upper left of the first roller (15), and the second roller (16) is eccentrically rotatably connected to the guard plate (14), and the second roller (16) is located above the slideway (13).

2. The screening and fermentation equipment for organic waste according to claim 1, characterized in that: The scraper plate (9) has a scraper tooth (17) fixedly connected to the bottom thereof, the scraper tooth (17) corresponding to the screen holes of the vibrating screen (8), and a chute (18) is provided on the storage rack (2) on the left side of the vibrating screen (8), the chute (18) being connected to the crushing zone (4).

3. The screening and fermentation equipment for organic waste according to claim 1, characterized in that: A support plate (19) is fixedly connected to the guard plate (14); a connecting block (20) is hingedly connected to the front side of the support plate (19); a first telescopic rod (21) is installed between the connecting block (20) and the material storage rack (2); and the support plate (19), the connecting plate and the first telescopic rod (21) are all located in the slide groove (12).

4. The screening and fermentation equipment for organic waste according to claim 1, characterized in that: The crushing zone (4) comprises a feed opening (22), the feed opening (22) being located on the material storage rack (2), a shell (23) being fixedly connected below the feed opening (22), the shell (23) being fixedly connected to the material storage rack (2), and the rotary cutter (10) being rotatably mounted in the shell (23).

5. The screening and fermentation equipment for organic waste according to claim 4, characterized in that: The rotary cutter (10) comprises a cutter shaft (1001), one end of the cutter shaft (1001) is fixedly connected to a first connecting rod (1002), a second connecting rod (1003) is hinged on the first connecting rod (1002), the other end of the cutter shaft (1001) is rotatably connected to a shaft sleeve (1004) that rotates in the same direction, a third connecting rod (1005) is fixedly connected to the shaft sleeve (1004), and a blanking assembly (1006) is hinged between the second connecting rod (1003) and the third connecting rod (1005).

6. The screening and fermentation equipment for organic waste according to claim 5, characterized in that: The unloading assembly (1006) comprises a first support rod (10061) and a second support rod (10062), wherein the first support rod (10061) is hinged to the second connecting rod (1003), and the second support rod (10062) is hinged to the third connecting rod (1005), and a plurality of cleaning blocks (10063) distributed at equal intervals are fixedly connected to the first support rod (10061) and the second support rod (10062).

7. The screening and fermentation equipment for organic waste according to claim 5, characterized in that: A connecting rod (24) is fixedly connected to the shaft sleeve, an internal gear (25) is fixedly connected to the connecting rod (24), a driving gear (26) is meshed inside the internal gear (25), a connecting gear (27) is meshed on the other side of the driving gear (26), the connecting gear (27) is fixedly connected to the cutter shaft (1001), and a driving pulley (28) is coaxially fixedly connected to the driving gear (26).

8. The screening and fermentation equipment for organic waste according to claim 4 or 5, characterized in that: A material pressing plate (29) is provided above the material discharge port (22), and support rods (30) are fixedly connected to both ends of the material pressing plate (29), and the support rod (30) is hinged to the chassis (5). An elastic member is connected between the support rod (30) and the chassis (5), and the elastic member applies force to the support rod (30) upwards. The chassis (5) is fixedly connected to a second telescopic rod (31), and the second telescopic rod (31) is located above the support rod (30).

9. The method of screening and fermenting equipment for organic waste according to claim 1, characterized in that: The storage rack (2), the fermentation box (6) and the frame (1) are stacked in order from top to bottom. The organic waste enters the filter area (3) on the left side of the storage rack (2) from the top of the storage rack (2). The filter area (3) in the storage rack (2) screens and filters the organic waste. Small particles and liquid enter the fermentation box (6) from the first feed port (7) through the filter area (3). The scraper plate (9) slides back and forth between the filter area (3) and the crushing area (4). Large particles of organic waste that are not filtered in the filter area (3) are pushed into the crushing area (4) under the action of the scraper plate (9). The crushing area (4) crushes the large particles of organic waste. The crushed organic waste enters the fermentation box (6) through the second feed port (11). The volume of the organic waste in the fermentation box (6) is reduced after screening and crushing, thereby improving the decomposition efficiency of the waste in the fermentation box (6).

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