Multi-stage screening machine for producing human and animal excreta organic fertilizer

Abstract

The invention discloses a multi-stage screening machine for producing a human and animal excreta organic fertilizer, which comprises symmetrically arranged supporting legs, a bottom frame is arranged on a pipeline at the upper ends of the supporting legs, a vertical frame and a side frame are arranged on a pipeline at the upper end of the bottom frame, an upper cover is fixed on the side frame, a plurality of partition plates are fixed at the lower end of the bottom frame along the long edge of the bottom frame, and four carrier rollers which are divided into two groups are fixed on the side frame; an outer screening assembly is arranged on the carrier roller, the upper end of the outer screening assembly is in transmission connection with an outer anti-blocking assembly, multiple sets of inner screening assemblies are arranged in the outer screening assembly, the outer screening assembly comprises a cylindrical frame, the frame is obliquely arranged, and the left end of the frame is higher than the right end of the frame. And hot air is rotated by the fan blades, so that the hot air quickly flows in the rotary drum and enters the corresponding inner drum through the branch drum, the hot air enters the inner drum and then is discharged through the air outlet strip and the shifting rod, and the hot air discharged from the air outlet strip is used for drying organic fertilizers in the inner drum, so that the organic fertilizers are prevented from being adhered to one another.

Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer screening, in particular to a multi-stage screening machine for producing human and animal excrement organic fertilizer. Background Art

[0002] Organic fertilizers are mainly derived from plants and (or) animals, and are carbon-containing materials that are applied to the soil to provide plant nutrition as their main function. They are processed from biological materials, animal and plant waste, and plant residues, eliminating toxic and harmful substances, and are rich in a large number of beneficial substances, including: a variety of organic acids, peptides, and rich nutrients including nitrogen, phosphorus, and potassium. Not only can it provide comprehensive nutrition for crops, but it also has a long fertilizer effect, can increase and renew soil organic matter, promote microbial reproduction, improve the physical and chemical properties and biological activity of the soil, and is the main nutrient for green food production. Deeply processed organic fertilizers are often in powder form; some organic fertilizers have a relatively light specific gravity and are easily blown away by the wind when applied in the field. It is easy to apply them when made into granules, and some inorganic ingredients can be added to the fertilizer to improve the fertilizer effect.

[0003] Chinese patent application number CN202021576297.3 discloses a screening device for organic fertilizer fermentation, including a support leg, the right side wall of the support leg is fixedly connected to a bottom plate at a lower middle position, the top of the bottom plate is fixedly connected to a collection trough, and the top of the support leg is fixedly connected to a mounting frame. The screening device for organic fertilizer fermentation is provided with a rotating shaft, and a power motor drives the toggle blades to rotate through the rotating shaft to push the organic fertilizer to move to the right and screen. The multi-stage screening method facilitates the subsequent processing of the organic fertilizer, and a power gear ring and a power gear are provided. The power motor drives the power gear to rotate, and the power gear drives the screening cylinder to rotate in the opposite direction through the power gear ring, thereby improving the efficiency of screening. The organic fertilizer that is stuck inside the screening hole on the upper side will be separated from the screening hole under the action of gravity, thereby effectively preventing blockage, thereby improving the efficiency of screening.

[0004] Chinese patent application No. CN202111186865.8 discloses a multi-stage screening system for organic fertilizer, comprising a shell, a first spiral blade is fixedly connected to the inner surface of the shell, a first screen is fixedly connected to the inner surface of the left side of the shell, a second spiral blade is fixedly connected to the inner surface of the first screen, the left inner surface of the shell is located inside the first screen and is fixedly connected to the second screen, the inner surface of the second screen is fixedly connected to the third spiral blade, the left inner surface of the shell is located inside the second screen and is fixedly connected to the third screen, the inner surface of the third screen is fixedly connected to the fourth spiral blade, the shell is tilted, and the sieve apertures of the first screen, the second screen and the third screen increase successively, so that the equipment reduces the phenomenon of blockage due to mutual accumulation during use, reduces the occurrence of manual cleaning of blockages, and the screening is more complete.

[0005] The above solution may cause the following problems during use: 1. Since the organic fertilizer itself still has a certain amount of humidity, when it is screened, the organic fertilizers will stick to each other, affecting the screening effect of the organic fertilizer, and the organic fertilizer cannot be screened according to the corresponding specifications.

[0006] 2. When the rolling screening equipment transports organic fertilizer into it for rolling screening, due to the rolling property of the organic fertilizer itself, the existing equipment can only bring the height of the organic fertilizer to two-thirds of the height of the entire drum during rolling, resulting in the inability to screen in some screening holes of the drum, affecting the screening efficiency.

[0007] 3. In the process of screening organic fertilizer materials, because the material particles are of different sizes and may clump, the organic fertilizer particles accumulate on each other and block the screening holes. Manual cleaning is required, which increases the risk of manual operation. At the same time, when there is a lot of material put in, the organic fertilizer cannot be fully stirred, resulting in some organic fertilizers not being screened out according to the specified specifications. Summary of the invention

[0008] In view of the above problems, the present invention provides a multi-stage screening machine for producing organic fertilizer from human and animal feces, which solves the above problems.

[0009] To achieve the above object, the present invention provides the following technical solutions: a multi-stage screening machine for producing organic fertilizer from human and animal feces, comprising symmetrically arranged legs, the upper end pipeline of the legs having a bottom frame, the upper end pipeline of the bottom frame having a vertical frame and a side frame, an upper cover being fixed on the side frame, a plurality of partitions being fixed on the lower end of the bottom frame along its long side, four rollers divided into two groups being fixed on the side frame, an outer screening assembly being arranged on the roller, an outer anti-blocking assembly being transmission-connected to the upper end of the outer screening assembly, and a plurality of groups of inner screening assemblies being arranged inside the outer screening assembly; The outer screening assembly comprises a cylindrical frame, the frame is tilted, the left end of the frame is higher than the right end, a screening cylinder is fixed to the outer wall of the frame, a plurality of groups of screening holes are provided on the screening cylinder, the apertures of the plurality of groups of screening holes are increased from left to right, and a transmission gear ring is fixed to the left end of the frame; The anti-blocking assembly includes a transmission wheel, which is in transmission connection with a transmission gear ring, a rotating rod is fixed on the transmission wheel, and a plurality of rubber strips are fixed on the rotating rod, wherein the length of the rubber strips is greater than the distance from the rotating rod to the screening drum; The inner screening component comprises a cylindrical inner cylinder, a cavity is arranged inside the inner cylinder, a penetrating sieve hole is opened on the outer wall of the inner cylinder, an air outlet strip connected with the cavity is opened on the inner wall of the inner cylinder, a plurality of shovel plates are fixed along the circumference of the inner wall of the inner cylinder, a rotating cylinder is arranged inside the inner cylinder, a connecting rod is arranged inside the rotating cylinder, two groups of supporting cylinders are fixed on the outer wall of the rotating cylinder, a plurality of fan blades are fixed on the connecting rod, a plurality of spiral blades are fixed on the outer wall of the inner cylinder along the circumference, a plurality of inner anti-blocking components are fixed on the outer wall of the spiral blade, and a toggle plate is fixed on one end of each of the spiral blades.

[0010] Preferably, a reduction motor is fixed on the base frame, and the reduction motor is transmission-connected to the external screening assembly. A servo motor is fixed on the vertical frame, and the servo motor is transmission-connected to the reversing assembly. The servo motor is transmission-connected to the internal screening assembly via the reversing assembly. Two side frames are provided, and a plurality of inspection doors are provided on the side frames. An inverted U-shaped upper cover is fixed to the upper end of the side frame.

[0011] Preferably, the rotating cylinder is fixedly connected to the inner cylinder through a support cylinder, the support cylinder is hollow inside, a gap is provided between the rotating cylinder and the connecting rod, the rotating cylinder and the connecting rod are rotatably connected, the rotating cylinder is connected to the cavity of the inner cylinder through the support cylinder, the spiral blade is hollow inside, the spiral blade is connected to the cavity of the inner cylinder, the spiral blade is connected to the shifting rod, and a through hole is provided on the spiral blade.

[0012] Preferably, the rotating rod is rotatably connected to the upper cover, a plurality of fan blades are fixed inside the frame, the rotating drum is rotatably connected to the fan blades, a plurality of columns are fixed inside the frame, and the spacing between the columns corresponds to the maximum diameter of the corresponding screening.

[0013] Preferably, the inner screening assembly rotates in opposite directions to the outer screening assembly, the lifting plate corresponds to the air outlet strip one by one, the cavity of the inner cylinder is not connected to the sieve hole, the lifting plate is L-shaped, the short side of the lifting plate is bent, the end of the toggle plate away from the inner cylinder is bent, and the bending direction of the toggle plate is consistent with the rotation direction of the inner cylinder.

[0014] Preferably, the reversing assembly includes a middle gear and an outer gear ring, the middle gear is transmission connected to the servo motor, the outer wall of the middle gear is meshed with multiple transmission gears, the middle gear is transmission connected to the outer gear ring through the transmission gear, the middle gear is transmission connected to the connecting rod, and the outer gear ring is transmission connected to the rotating drum.

[0015] Preferably, the internal anti-blocking component includes a lever, a sealing plate is fixed inside the lever, an anti-blocking ball is elastically connected to one side of the sealing plate, a sealing cylinder is elastically connected to the other side of the sealing plate, the outer walls of the lever and the sealing cylinder are respectively provided with through holes, symmetrically arranged movable grooves are provided in the through hole of the lever, a sealing cover is slidably connected in the through hole of the lever, the sealing cover is elastically connected in the movable groove, and a Venturi tube is provided in the end of the lever connected to the spiral blade.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The hot air generated by the external drying equipment is passed into the rotating drum. The hot air is rotated by the fan blades to make the hot air flow quickly in the rotating drum and enter the corresponding inner drum through the support drum. After entering the inner drum, the hot air is discharged through the air outlet strip and the lever. The hot air discharged from the air outlet strip dries the organic fertilizer inside the inner drum to prevent the organic fertilizers from sticking to each other. The hot air discharged from the lever dries the organic fertilizer between the inner drum and the screening drum to prevent the organic fertilizers from sticking to each other. At the same time, the lever and the column are cross-arranged. While the lever stirs, stirs and dries the organic fertilizer, it cooperates with the column to squeeze and crush the organic fertilizers that stick to each other to prevent the organic fertilizers from sticking to each other in large pieces.

[0017] 2. By arranging a lifting board inside the inner drum, the lifting board is driven to lift the organic fertilizer inside the inner drum while the inner drum rotates. As the inner drum rotates, the organic fertilizer on the lifting board is slowly dumped down to prevent excessive accumulation of organic fertilizer at the lower end of the inner drum from affecting the screening effect of the inner drum. At the same time, the lifting board lifts up the organic fertilizer and scatters it, so that the organic fertilizer almost covers the entire interior of the inner drum, which is convenient for drying the organic fertilizer. At the same time, the scattered organic fertilizer falls due to the action of gravity, forming a downward smashing effect, which further prevents the organic fertilizer from caking.

[0018] 3. The transmission wheel rotates, and the transmission wheel drives the rotating rod to rotate. At the same time, the rotation of the rotating rod drives the rubber strip to rotate. The length of the rubber strip is greater than the distance from the rotating rod to the screening cylinder. Then, while the rotating rod rotates, the rubber strip knocks the screening cylinder to knock out the organic fertilizer blocked in the screening hole. At the same time, the organic fertilizer blocks the screening hole inside the screening cylinder. The anti-blocking ball is elastically connected to the lever, and the anti-blocking ball pushes out the organic fertilizer blocked inside the screening cylinder, effectively solving the problem of blocked screening holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the screening assembly of the present invention; Figure 3 It is a schematic diagram of the framework of the present invention; Figure 4 It is a partial cross-sectional schematic diagram of the present invention; Figure 5 It is a cross-sectional schematic diagram of the inner screening assembly of the present invention; Figure 6 It is a schematic cross-sectional view of the inner cylinder of the present invention; Figure 7 It is a schematic diagram of the reversing assembly of the present invention; Figure 8 A schematic diagram of a lever according to the present invention; Fig. 9 is a cross-sectional schematic diagram of a lever of the present invention; Fig.10 It is a partial enlarged schematic diagram of the lever of the present invention; Fig.11 It is a schematic diagram of the lever of the present invention.

[0020] Explanation of the markings in the figure: 1. Leg; 2. Frame; 3. Drive wheel; 4. Inner cylinder; 5. Middle gear; 11. Base frame; 12. Vertical frame; 13. Side frame; 14. Inspection door; 15. Partition; 16. Upper cover; 17. Speed ​​reducer motor; 18. Servo motor; 19. Roller; 21. Drive gear ring; 22. Screening cylinder; 23. Fan blade; 24. Screening hole; 31. Rotating rod; 32. Rubber strip; 41. Support cylinder; 42. Rotating cylinder; 43. Connecting rod; 44. Lifting plate; 45. Screen hole; 46. Air outlet strip; 47. Spiral blade; 48. Push rod; 49. Push plate; 51. Transmission gear; 52. External gear ring; 221. Vertical column; 431. Fan blade; 481. Anti-blocking ball; 482. Sealing cylinder; 483. Venturi tube; 484. Sealing plate; 485. Sealing cover; 486. Movable slot. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A multi-stage screening machine for producing organic fertilizer from human and animal feces comprises symmetrically arranged legs 1, the upper end pipe of the legs 1 comprises a bottom frame 11, the upper end pipe of the bottom frame 11 comprises a vertical frame 12 and a side frame 13, an upper cover 16 is fixed on the side frame 13, the legs 1, the bottom frame 11, the vertical frame 12 and the side frame 13 form a whole support frame of the device, so that a certain height is formed between the device and the ground, and a trolley can be directly parked under the organic fertilizer of corresponding specifications, so that the organic fertilizer screened by the device can directly fall into the corresponding trolley, It is convenient to transport the corresponding organic fertilizer. At the same time, the upper cover 16 protects the device to prevent the organic fertilizer from being thrown out. The lower end of the base frame 11 is fixed with multiple partitions 15 along its long side. By fixing multiple partitions 15 at the lower end of the base frame 11, the partitions 15 isolate organic fertilizers of different specifications one by one to prevent the screened organic fertilizers from mixing together, and effectively prevent the organic fertilizers from mixing again. Four rollers 19 divided into two groups are fixed on the side frame 13. The rollers 19 are provided with external screening components. The rollers 19 are rectangular The outer screening component is shaped and distributed below the outer screening component to support the outer screening component so that the outer screening component continues to rotate and plays a supporting role for the outer screening component. The upper end of the outer screening component is connected to the outer anti-blocking component in a transmission manner. The inner part of the outer screening component is provided with multiple groups of inner screening components. The organic fertilizer is screened by the outer screening component and the inner screening component to improve the efficiency of organic fertilizer screening. At the same time, the outer anti-blocking component clears the blockage to prevent the organic fertilizer from blocking the screening hole 24 of the outer screening component. A reduction motor 17 is fixed on the bottom frame 11. The reduction motor 17 is transmission connected with the outer screening component, a servo motor 18 is fixed on the vertical frame 12, and the servo motor 18 is transmission connected with a reversing component, and the servo motor 18 is transmission connected with the inner screening component through the reversing component, and two side frames 13 are provided, and a plurality of inspection doors 14 are provided on the side frame 13. An inverted U-shaped upper cover 16 is fixed to the upper end of the side frame 13, and power is provided by the reduction motor 17 and the servo motor 18 to make the device work, so as to achieve the effect of the device screening the organic fertilizer and packaging the screening at the same time.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5Taking into account the movement of organic fertilizer in the device, to prevent the organic fertilizer from accumulating at the feed end of the device, the device is tilted to prevent this, and taking into account the rotation of the frame 2, the outer screening component includes a cylindrical frame 2, and the frame 2 is tilted. By tilting the device, when the organic fertilizer is poured into the device, as the device rotates, the organic fertilizer moves to the lower part of the device to prevent the organic fertilizer from accumulating at the feed port of the device. At the same time, the toggle plate 49 and the spiral blade 47 on the inner screening component cooperate to transport the organic fertilizer at the feed port of the device to the inside of the device. At the same time, a through hole is provided on the spiral blade 47. When the spiral blade 47 transports the organic fertilizer, the organic fertilizer that does not meet its specifications is screened. The organic fertilizer is separated out, and the organic fertilizer is transported while screening the organic fertilizer, and is transported to the screening component of the next specification for screening to prevent the organic fertilizer from piling up in one place. The left end of the frame 2 is higher than the right end, and a screening cylinder 22 is fixed to the outer wall of the frame 2. A plurality of groups of screening holes 24 are provided on the screening cylinder 22, and the apertures of the plurality of groups of screening holes 24 increase successively from left to right. A transmission gear ring 21 is fixed to the left end of the frame 2, and the frame 2 is reinforced. A screening cylinder 22 is arranged on the outer side of the frame 2, and screening holes 24 are provided on the screening cylinder 22. Since the apertures of the screening holes 24 increase successively from left to right, the screening specifications of the organic fertilizer also change from small to large, thereby achieving the effect of multi-stage screening, and the organic fertilizer can be screened into various specifications by one screening.

[0024] See also Figure 2 , Figure 3 , Figure 4 and Figure 5, considering that when the screening drum 22 screens the organic fertilizer, the organic fertilizer slightly larger than the screening hole 24 will block the screening hole 24, and after long-term use, the screening hole 24 will be completely blocked, thereby affecting the screening effect of the screening drum 22, it is necessary to clean out the organic fertilizer blocked in the screening hole 24, the anti-blocking component includes a transmission wheel 3, the transmission wheel 3 is transmission-connected to the transmission gear ring 21, a rotating rod 31 is fixed on the transmission wheel 3, and a plurality of rubber strips 32 are fixed on the rotating rod 31, the length of the rubber strip 32 is greater than the distance from the rotating rod 31 to the screening drum 22, and the transmission wheel 3 is rotated, the transmission wheel 3 drives the rotating rod 31 to rotate, and the rotating rod 31 rotates to drive the rubber strip 32 to rotate, and the length of the rubber strip 32 is greater than the distance from the rotating rod 31 to the screening drum 22, and then when the rotating rod 31 rotates, the rubber strip 32 knocks on the screening drum 22, so that the organic fertilizer blocked in the screening hole 24 is removed. The organic fertilizer is beaten out, and at the same time, the organic fertilizer blocks the screening hole 24 inside the screening drum 22. The anti-blocking ball 481 is elastically connected to the lever 48, and the anti-blocking ball 481 pushes out the organic fertilizer blocked inside the screening drum 22, effectively solving the problem of the screening hole 24 being blocked. The rotating rod 31 is rotatably connected to the upper cover 16, and a plurality of fan blades 23 are fixed inside the frame 2. The rotating drum 42 is rotatably connected to the fan blades 23. When the frame 2 rotates, the fan blades 23 rotate accordingly, thereby forming wind, which can promote the air flow inside the device, facilitate the introduction of external dry air into the interior of the device to dry the organic fertilizer, and quickly discharge the dried moisture from the end of the device. At the same time, the edge of the fan blade 23 can cut the agglomerated organic fertilizer to prevent the organic fertilizer from sticking to each other. The fan blade 23 also supports the frame 2, reinforces the frame 2, and prevents the frame 2 from collapsing.

[0025] See also Figure 4 , Figure 5 and Figure 6When the rolling screening equipment conveys the organic fertilizer into the equipment for rolling screening, due to the rolling property of the organic fertilizer itself, the existing equipment can only bring the height of the organic fertilizer to two-thirds of the height of the drum as a whole during rolling, resulting in the inability to screen the screening holes 24 in some parts of the drum, which affects the screening efficiency. The inner screening component includes a cylindrical inner drum 4, wherein a cavity is provided inside the inner drum 4, and a penetrating screen hole 45 is provided on the outer wall of the inner drum 4, and an air outlet strip 46 connected to the cavity is provided on the inner wall of the inner drum 4, and a plurality of shovel plates 44 are fixed along the circumference of the inner wall of the inner drum 4, through which the screen hole 45 is formed. A shoveling plate 44 is arranged inside the inner cylinder 4, and the shoveling plate 44 is driven to shovel the organic fertilizer inside the inner cylinder 4 while the inner cylinder 4 rotates. As the inner cylinder 4 rotates, the organic fertilizer on the shoveling plate 44 is slowly dumped down to prevent excessive accumulation of organic fertilizer at the lower end of the inner cylinder 4 from affecting the screening effect of the inner cylinder 4. At the same time, the shoveling plate 44 shovels the organic fertilizer and scatters it, so that the organic fertilizer almost fills the entire interior of the inner cylinder 4, which is convenient for drying the organic fertilizer. At the same time, the scattered organic fertilizer falls due to the action of gravity, forming a downward smashing effect, and further preventing the organic fertilizer from caking. A rotating drum 42 is arranged inside the inner cylinder 4. A connecting rod 43 is provided in the rotating drum 42, two groups of supporting cylinders 41 are fixed to the outer wall of the rotating drum 42, a plurality of fan blades 431 are fixed to the connecting rod 43, a plurality of spiral blades 47 are fixed to the outer wall of the inner drum 4 along its circumference, a plurality of inner anti-blocking components are fixed to the outer wall of the spiral blade 47, a toggle plate 49 is fixed to one end of each of the spiral blades 47, the scooping plate 44 is L-shaped, and the short side of the scooping plate 44 is bent, and the hot air generated by the external drying equipment is introduced into the rotating drum 42, and the hot air is rotated by the fan blades 431 so that the hot air flows quickly in the rotating drum 42, And enter the corresponding inner cylinder 4 through the support cylinder 41. After the hot air enters the inner cylinder 4, it is discharged through the air outlet strip 46 and the lever 48. The hot air discharged from the air outlet strip 46 dries the organic fertilizer inside the inner cylinder 4 to prevent the organic fertilizers from sticking to each other. The hot air discharged from the lever 48 dries the organic fertilizer between the inner cylinder 4 and the screening cylinder 22 to prevent the organic fertilizers from sticking to each other. At the same time, the lever 48 and the column 221 are cross-arranged. While the lever 48 stirs, stirs and dries the organic fertilizers, it cooperates with the column 221 to squeeze and crush the organic fertilizers that stick to each other to prevent the organic fertilizers from sticking to each other into large pieces.

[0026] See also Figure 4 , Figure 5 , Figure 6 , Fig. 9 and Fig.10Since the organic fertilizer itself still has a certain humidity, the organic fertilizer will stick to each other when it is screened, affecting the effect of the organic fertilizer screening, and the organic fertilizer cannot be screened according to the corresponding specifications. The rotating drum 42 is fixedly connected to the inner drum 4 through the support tube 41. The support tube 41 is hollow inside. The support tube 41 connects the inner drum 4 and the rotating drum 42. The support tube 41 supports the inner drum 4 while introducing the hot air in the rotating drum 42 into the inner drum 4, and discharges part of the hot air through the air outlet strips 46 on the inner drum 4, so as to dry the organic fertilizer rolling inside the inner drum 4 to prevent the organic fertilizer from sticking to each other due to excessive humidity. A gap is provided between the rotating drum 42 and the connecting rod 43, and the rotating drum 42 and the connecting rod 43 are rotatably connected. The rotating drum 42 and the connecting rod 43 rotate with each other without affecting each other. The rotating drum 42 is connected to the inner drum 4 through the support tube 41. The cavity of the inner cylinder 4 is connected, the spiral blade 47 is hollow inside, the spiral blade 47 is connected with the cavity of the inner cylinder 4, the spiral blade 47 is connected with the lever 48, a through hole is provided on the spiral blade 47, the spiral blade 47 is provided with a through hole, when the inner cylinder 4 drives the spiral blade 47 to rotate, the spiral blade 47 plays a role of spiral conveying, and at the same time, the organic fertilizer is toggled, while the spiral blade 47 conveys the organic fertilizer, the through hole on the spiral blade 47 screens out the organic fertilizer that does not meet its specifications, plays a role of screening the organic fertilizer while conveying the organic fertilizer, and conveys it to the screening component of the next specification for screening, so as to prevent the organic fertilizer from piling up in one place and ensure the effect of organic fertilizer screening, a plurality of columns 221 are fixed inside the frame 2, and the spacing between the columns 221 corresponds to the maximum diameter of the corresponding screening.

[0027] See also Figure 2 , Figure 4 , Figure 7 , Fig. 9 , Fig.10 and Fig.11, taking into account the effective drying of the organic fertilizer, it is also necessary to consider the screening situation of the screening cylinder 22, effectively utilize the screening holes 24, and make the screening holes 24 with a large area as much as possible to screen the organic fertilizer. The rotation direction of the inner screening component is opposite to that of the outer screening component. By setting the rotation directions of the outer screening component and the inner screening component in opposite directions, when the outer screening component rotates, the organic fertilizer can only be taken up and moved to one side, while the outer screening component on the other side will be vacant and unable to screen the organic fertilizer. When the inner screening component is rotated in the opposite direction, air will appear on one side of the inner screening component, and the outer screening component and The rotation direction of the inner screening component is set in the opposite direction, so that the vacancies of the outer screening component and the inner screening component are just complementary, thereby providing screening efficiency for organic fertilizer. The copying plate 44 corresponds to the air outlet strip 46 one by one, and the cavity of the inner cylinder 4 is not connected to the sieve hole 45. The end of the toggle plate 49 away from the inner cylinder 4 is bent, and the bending direction of the toggle plate 49 is consistent with the rotation direction of the inner cylinder 4. The bending direction of the toggle plate 49 and the rotation direction of the inner cylinder 4 are set in the same direction, which is conducive to fluctuating the organic fertilizer into the gap between the outer screening component and the inner screening component, and then screening the organic fertilizer through the outer screening component.

[0028] See also Figure 2 , Figure 4 , Figure 7 , Fig. 9 , Fig.10 and Fig.11 , considering that in the process of rolling screening of organic fertilizer, the organic fertilizer screened by the inner screening component is prevented from being re-mixed in the outer screening component, the rotation directions of the inner screening component and the outer screening component are set in the opposite direction, the reversing component includes a middle gear 5 and an outer gear ring 52, the middle gear 5 is transmission-connected to the servo motor 18, the outer wall of the middle gear 5 is meshed with a plurality of transmission gears 51, the middle gear 5 is transmission-connected to the outer gear ring 52 through the transmission gear 51, the middle gear 5 is transmission-connected to the connecting rod 43, the outer gear ring 52 is transmission-connected to the drum 42, the reversing component is connected to the drum 42 and the connecting rod 43, the drum 42 drives the inner drum 4 to rotate to screen the organic fertilizer, and at the same time ensures that the rotation directions of the inner drum 4 and the screening drum 22 are opposite, and at the same time as the drum 42 rotates, the connecting rod 43 also rotates, promoting the rapid flow of hot air in the drum 42, and the transmission is carried out through the reversing component, without the need to increase the power source, the drum 42 and the connecting rod 43 can be rotated at the same time.

[0029] See also Figure 2 , Figure 4 , Figure 7 , Fig. 9 and Fig.10In the process of screening organic fertilizer materials, because the material particles are of different sizes and may clump, the organic fertilizer particles are piled up on each other, and the screening hole 24 is blocked. It is necessary to manually clean the blockage, which increases the danger of manual operation. At the same time, when there is a lot of material, the organic fertilizer cannot be fully stirred, resulting in part of the organic fertilizer not being screened out according to the specified specifications. The internal anti-blocking component includes a lever 48, and a sealing plate 484 is fixed in the lever 48. The sealing plate 484 The lever 48 is connected to the inner tube 4 by an anti-blocking ball 481, and the lever 48 is connected to the cavity of the inner tube 4. The hot air in the inner tube 4 will enter the lever 48 and be discharged through the through hole on the lever 48, so that the lever 48 can stir the organic fertilizer and dry it at the same time. The anti-blocking ball 481 arranged at one end of the lever 48 is elastically connected to the lever 48. When the anti-blocking ball 481 encounters organic fertilizer blocked on the sieve hole 24, the organic fertilizer can be pushed out from the sieve hole 24 to prevent the organic fertilizer from blocking the sieve hole 24. The other side of the sealing plate 484 A sealing cylinder 482 is elastically connected to one side, and through holes are correspondingly opened on the outer walls of the lever 48 and the sealing cylinder 482. A symmetrically arranged movable groove 486 is opened in the through hole of the lever 48. A sealing cover 485 is slidably connected in the through hole of the lever 48. The sealing cover 485 is elastically connected in the movable groove 486. A venturi tube 483 is arranged in the end of the lever 48 connected to the spiral blade 47. The sealing cylinder 482 cooperates with the sealing cover 485. Under different conditions of hot air inlet, the lever 48 is completely moved. The sealing is performed to prevent some organic fertilizer debris from entering the interior of the lever 48. When hot air is introduced into the lever 48, the hot air increases its flow rate through the venturi tube 483, and the hot air impacts and moves the sealing cylinder 482, so that the through hole on the sealing cylinder 482 corresponds to the through hole on the lever 48, and at the same time, the sealing cover 485 on the lever 48 is impacted and ejected, so that the hot air dries the organic fertilizer. After the hot air is not introduced, the sealing cover 485 is retracted into the through hole of the lever 48, and the through hole on the sealing cylinder 482 is misaligned with the through hole on the lever 48.

[0030] When the present invention is used: First, the device is driven to work and rotate by the reduction motor 17 and the servo motor 18. When the organic fertilizer is poured into the device, as the device rotates, the organic fertilizer moves to the lower part of the device to prevent the organic fertilizer from piling up at the feed port of the device. Then the screening drum 22 rotates to screen the organic fertilizer. The screened organic fertilizer is discharged through the screening hole 24. When the frame 2 rotates, the fan blade 23 rotates accordingly to form wind, which can promote the air flow inside the device, facilitate the introduction of external dry air into the inside of the device to dry the organic fertilizer, and quickly discharge the dried moisture from the end of the device. At the same time, the edge of the fan blade 23 can cut the agglomerated organic fertilizer to prevent the organic fertilizer from sticking to each other. Then, the organic fertilizer in the inner screening assembly is screened through the through holes on the inner cylinder 4, the inner cylinder 4 rotates, and the scooping plate 44 scoops up the organic fertilizer inside the inner cylinder 4. As the inner cylinder 4 rotates, the organic fertilizer on the scooping plate 44 is also slowly dumped down to prevent the organic fertilizer at the lower end of the inner cylinder 4 from accumulating too much and affecting the screening effect of the inner cylinder 4. At the same time, the scooping plate 44 scoops up the organic fertilizer and sprinkles it, so that the organic fertilizer is almost spread all over the entire interior of the inner cylinder 4, which is convenient for drying the organic fertilizer. At the same time, the scattered organic fertilizer falls due to the effect of gravity, forming an effect of smashing down, further preventing the organic fertilizer from caking. At the same time, the spiral blade 47 plays the role of spiral conveying after rotating, and the organic fertilizer is tossed at the same time. When the spiral blade 47 conveys the organic fertilizer, the through hole on the spiral blade 47 screens out the organic fertilizer that does not meet its specifications; Next, while the inner cylinder 4 is rotating, the hot air generated by the external drying equipment is passed into the rotating cylinder 42. The hot air is rotated by the fan blades 431 so that the hot air quickly flows in the rotating cylinder 42 and enters the corresponding inner cylinder 4 through the support cylinder 41. After entering the inner cylinder 4, the hot air is discharged through the air outlet strip 46 and the lever 48. The hot air discharged from the air outlet strip 46 dries the organic fertilizer inside the inner cylinder 4 to prevent the organic fertilizers from sticking to each other. The hot air discharged from the lever 48 dries the organic fertilizer between the inner cylinder 4 and the screening cylinder 22 to prevent the organic fertilizers from sticking to each other. At the same time, the lever 48 is cross-arranged with the column 221. While the lever 48 stirs, stirs and dries the organic fertilizer, it cooperates with the column 221 to squeeze and crush the organic fertilizers that stick to each other. Finally, the transmission wheel 3 drives the rotating rod 31 to rotate, and at the same time, the rotation of the rotating rod 31 drives the rubber strip 32 to rotate. The length of the rubber strip 32 is greater than the distance from the rotating rod 31 to the screening cylinder 22. Then, while the rotating rod 31 rotates, the rubber strip 32 knocks the screening cylinder 22 to knock out the organic fertilizer blocked in the screening hole 24. At the same time, the organic fertilizer blocks the screening hole 24 inside the screening cylinder 22. The anti-blocking ball 481 is elastically connected to the lever 48. The anti-blocking ball 481 pushes out the organic fertilizer blocked inside the screening cylinder 22 to prevent the organic fertilizer from blocking the screening hole 24.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage screening machine for producing organic fertilizer from human and animal feces, comprising symmetrically arranged legs (1), characterized in that: The upper end pipeline of the support leg (1) has a bottom frame (11), the upper end pipeline of the bottom frame (11) has a vertical frame (12) and a side frame (13), an upper cover (16) is fixed to the side frame (13), a plurality of partitions (15) are fixed to the lower end of the bottom frame (11) along its long side, four rollers (19) divided into two groups are fixed to the side frame (13), an external screening assembly is provided on the rollers (19), the upper end of the external screening assembly is transmission-connected to an external anti-blocking assembly, and a plurality of groups of internal screening assemblies are provided inside the external screening assembly; The outer screening component comprises a cylindrical frame (2), the frame (2) being arranged at an angle, the left end of the frame (2) being higher than the right end, a screening cylinder (22) being fixed to the outer wall of the frame (2), the screening cylinder (22) being provided with a plurality of groups of screening holes (24), the apertures of the plurality of groups of screening holes (24) increasing in size from left to right, and a transmission gear ring (21) being fixed to the left end of the frame (2); The anti-blocking assembly comprises a transmission wheel (3), the transmission wheel (3) being transmission-connected to a transmission gear ring (21), a rotating rod (31) being fixed on the transmission wheel (3), a plurality of rubber strips (32) being fixed on the rotating rod (31), the length of the rubber strips (32) being greater than the distance from the rotating rod (31) to the screening drum (22); The inner screening component comprises a cylindrical inner cylinder (4), the inner cylinder (4) having a cavity therein, the outer wall of the inner cylinder (4) having a penetrating sieve hole (45), the inner wall of the inner cylinder (4) having an air outlet strip (46) in communication with the cavity, the inner wall of the inner cylinder (4) having a plurality of lifting plates (44) fixed along its circumference, a rotating cylinder (42) inside the inner cylinder (4), a connecting rod (43) inside the rotating cylinder (42), two groups of supporting cylinders (41) fixed to the outer wall of the rotating cylinder (42), a plurality of fan blades (431) fixed to the connecting rod (43), a plurality of spiral blades (47) fixed to the outer wall of the inner cylinder (4) along its circumference, a plurality of inner anti-blocking components fixed to the outer wall of the spiral blade (47), and a toggle plate (49) fixed to one end of each of the spiral blades (47).

2. A multi-stage screening machine for producing human and animal feces organic fertilizer according to claim 1, characterized in that: A reduction motor (17) is fixed on the base frame (11), and the reduction motor (17) is drivingly connected to the outer screening assembly. A servo motor (18) is fixed on the vertical frame (12), and the servo motor (18) is drivingly connected to the reversing assembly. The servo motor (18) is drivingly connected to the inner screening assembly via the reversing assembly. Two side frames (13) are provided, and a plurality of inspection doors (14) are provided on the side frames (13). An inverted U-shaped upper cover (16) is fixed to the upper end of the side frame (13).

3. A multi-stage screening machine for producing human and animal feces organic fertilizer according to claim 1, characterized in that: The rotating cylinder (42) is fixedly connected to the inner cylinder (4) via the supporting cylinder (41); the interior of the supporting cylinder (41) is hollow; a gap is provided between the rotating cylinder (42) and the connecting rod (43); the rotating cylinder (42) and the connecting rod (43) are rotatably connected; the rotating cylinder (42) is connected to the cavity of the inner cylinder (4) via the supporting cylinder (41); the interior of the spiral blade (47) is hollow; the spiral blade (47) is connected to the cavity of the inner cylinder (4); the spiral blade (47) is connected to the shifting rod (48); and a through hole is provided on the spiral blade (47).

4. A multi-stage screening machine for producing human and animal feces organic fertilizer according to claim 1, characterized in that: The rotating rod (31) is rotatably connected to the upper cover (16); a plurality of fan blades (23) are fixed inside the frame (2); the rotating drum (42) is rotatably connected to the fan blades (23); a plurality of upright posts (221) are fixed inside the frame (2); and the spacing between the upright posts (221) corresponds to the maximum diameter of the corresponding screening.

5. The multi-stage screening machine for producing human and animal feces organic fertilizer according to claim 1, characterized in that: The inner screening assembly rotates in opposite directions to the outer screening assembly, the lifting plate (44) corresponds to the air outlet strip (46) one by one, the cavity of the inner cylinder (4) is not connected to the sieve hole (45), the lifting plate (44) is L-shaped, the short side of the lifting plate (44) is bent, the end of the toggle plate (49) away from the inner cylinder (4) is bent, and the bending direction of the toggle plate (49) is consistent with the rotation direction of the inner cylinder (4).

6. A multi-stage screening machine for producing human and animal feces organic fertilizer according to claim 2, characterized in that: The reversing assembly comprises a middle gear (5) and an outer gear ring (52); the middle gear (5) is transmission-connected to a servo motor (18); a plurality of transmission gears (51) are meshed on an outer wall of the middle gear (5); the middle gear (5) is transmission-connected to the outer gear ring (52) via the transmission gears (51); the middle gear (5) is transmission-connected to a connecting rod (43); and the outer gear ring (52) is transmission-connected to a rotating drum (42).

7. The multi-stage screening machine for producing organic fertilizer from human and animal feces according to claim 1, characterized in that: The internal anti-blocking component comprises a lever (48), a sealing plate (484) is fixed inside the lever (48), an anti-blocking ball (481) is elastically connected to one side of the sealing plate (484), and a sealing cylinder (482) is elastically connected to the other side of the sealing plate (484), the outer walls of the lever (48) and the sealing cylinder (482) are respectively provided with through holes, the through hole of the lever (48) is provided with symmetrically arranged movable grooves (486), a sealing cover (485) is slidably connected to the through hole of the lever (48), and the sealing cover (485) is elastically connected to the movable groove (486), and a venturi tube (483) is provided inside one end of the lever (48) that is connected to the spiral blade (47).

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