An aerobic granular sludge granulation preparation system and process

Abstract

The present invention discloses an aerobic granular sludge granulation preparation system and process, including a granulation casing and a granulation port opened at the top of the granulation casing, and a carrier stratification component is embedded and connected in the granulation port. In the present invention, the height of the carrier cutting knife is adjusted to produce aerobic sludge particles with suitable particle sizes according to the needs of sewage treatment, and the polyurethane particles of biological filler are used as carriers, so that the properties of the aerobic sludge particles are more stable, the particle sizes are normally distributed, and there are mineral cores and cross-linked and interconnected mass transfer pores inside the particles, ensuring the long-term stability of the structure of the aerobic granular sludge; using the polyurethane of biological filler as the granulation carrier, which has a reticular three-dimensional porous structure and a large specific surface area, etc., can be used as an ideal biological attachment site and it is easy for aerobic sludge to agglomerate in the pores and on the surface of the porous polyurethane filler.

Description

Technical Field

[0001] The present invention belongs to the technical field of sludge granulation, and particularly relates to an aerobic granular sludge granulation preparation system and process. Background Art

[0002] Aerobic granular sludge, abbreviated as AGS, is granular activated sludge formed by the self-aggregation of microorganisms. Compared with traditional flocculent activated sludge, aerobic granular sludge has the following advantages: good sedimentation performance, high sludge concentration, strong shock load resistance, and good treatment effect. It has become a hot spot in sewage biochemical treatment and is one of the most promising wastewater biological treatment technologies at present.

[0003] Some invention patents in the technical field of sludge granulation are disclosed in the prior art. Among them, the invention patent with the application number CN202311254091.7 discloses a reaction device for rapid granulation of aerobic sludge, which relates to the technical field of sludge granulation. It includes a reaction tank, a buffer base is movably installed below the reaction tank, a protective base is fixedly installed below the buffer base, a support frame is fixedly installed below the protective base, a feed inlet is opened on one side of the reaction tank, a feed pipe is fixedly installed in the feed inlet, a discharge outlet is opened on the other side of the reaction tank, a discharge pipe is fixedly installed in the discharge outlet, an oxygen pump is fixedly installed on the side of the reaction tank, the oxygen pump is electrically connected to an external power supply, and an oxygen supply pipe is fixedly installed at the output end of the oxygen pump. The oxygen supply pipe is arranged in the reaction tank. This technical solution effectively improves the reaction speed of aerobic sludge granulation, shortens the production process, and reduces labor intensity and cost. However, there are still some deficiencies in the application of this technical solution. The aerobic sludge granules in the aerobic granular sludge technology are unstable, and there are generally two major problems: long granulation period and easy instability during long-term operation. Some production equipment that can granulate rapidly will also gradually show the phenomenon of granule sludge disintegration as the operation time prolongs.

[0004] Based on this, the present invention designs an aerobic granular sludge granulation preparation system and process to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to propose an aerobic granular sludge granulation preparation system and process to solve the problems that the aerobic sludge granules in the aerobic granular sludge technology in the prior art are unstable, generally have two major problems: long granulation period and easy instability during long-term operation, and some production equipment that can granulate rapidly will also gradually show the phenomenon of granule sludge disintegration as the operation time prolongs.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An aerobic granular sludge granulation preparation system includes a granulation housing and a granulation port opened at the top of the granulation housing. An embedded carrier layering component is connected in the granulation port. A tool assembly port is opened at the end face of the lifting tool rest of the carrier layering component. A carrier cutting component is embedded in the tool assembly port. The carrier cutting component reciprocates horizontally in the tool assembly port for cutting the granulation carrier.

[0008] A rear compensation plate is connected to the side end face of the granulation housing corresponding to the position of the granulation port. A carrier positioning component is connected to the rear compensation plate. The carrier pressing device of the carrier positioning component elastically presses the granulation carrier on the rear compensation plate. An internal carrier pushing component is embedded in the carrier positioning component for pushing the granulation carrier pressed by the carrier pressing device towards the granulation port.

[0009] As a further description of the above technical solution:

[0010] The carrier layering component includes a telescopic box, which is embedded and connected in the granulation port. A lifting tool rest is sleeved in the telescopic box. A directional groove is opened at the bottom of the lifting tool rest. A directional shaft is sleeved in the directional groove. The end of the directional shaft is connected to the inner bottom of the telescopic box. A first support spring is sleeved on the directional shaft. The lifting tool rest is elastically supported and connected to the inner bottom of the telescopic box through the first support spring.

[0011] As a further description of the above technical solution:

[0012] A sinking groove is opened on the lifting tool rest. An adjustment hole is opened at the bottom of the sinking groove. A threaded connection head is inserted and connected in the sinking groove and the adjustment hole. A threaded connection cylinder is threadedly connected to the threaded surface of the threaded connection head. The end of the threaded connection cylinder is connected to the inner bottom of the telescopic box. By twisting the threaded connection head, the height of the carrier cutting component is adjusted to adapt to different thicknesses of granulation carriers.

[0013] As a further description of the above technical solution:

[0014] The carrier cutting component includes a carrier cutting knife, which is embedded and connected in the tool assembly port. A first sliding connection groove is opened on the carrier cutting knife. A first sliding connection seat is slidably connected in the first sliding connection groove. A second support spring is connected to the end of the first sliding connection seat. The first sliding connection seat is elastically supported and connected to the inside of the first sliding connection groove through the second support spring. The first sliding connection seat is connected to the inner wall of the tool assembly port.

[0015] As a further description of the above technical solution:

[0016] A reciprocating motion port is formed at the top of the carrier cutting knife. On both sides of the inner wall of the reciprocating motion port, a first transmission gear plate and a second transmission gear plate are respectively connected. A same sector gear is meshed between the second transmission gear plate and the first transmission gear plate. The sector gear is rotatably connected to the tool assembly port through a gear shaft.

[0017] As a further description of the above technical solution:

[0018] The carrier positioning assembly includes a flip cover. A first adapter inner core is connected to the side end face of the flip cover. A first adapter bracket is connected to the position of the rear compensation plate corresponding to the first adapter inner core. The first adapter inner core is embedded and connected in the first adapter bracket. The first adapter inner core is rotatably connected to the first adapter bracket through a pin. A transfer spring is sleeved on the pin. The pin is elastically transferred to the first adapter bracket through the transfer spring;

[0019] A handle is connected to the flip cover. An anti-slip sleeve is sleeved on the handle.

[0020] As a further description of the above technical solution:

[0021] The carrier pressing device includes a plurality of linear tracks. A plurality of track grooves are formed in the inner wall of the flip cover. The plurality of linear tracks are respectively slidably connected in the plurality of track grooves;

[0022] A plurality of telescopic cylinders are connected to the bottom of the linear track. A telescopic shaft is sleeved in each of the plurality of telescopic cylinders. A first pressing spring is sleeved on the telescopic shaft and the telescopic cylinder. The telescopic shaft is elastically supported and connected to the linear track through the first pressing spring. The other ends of the plurality of telescopic shafts are connected to the same carrier lower pressing plate.

[0023] As a further description of the above technical solution:

[0024] The carrier pushing assembly includes a carrier pushing rear seat. A plurality of second sliding connection grooves are formed in the carrier pushing rear seat corresponding to the position of the carrier lower pressing plate. A second sliding connection seat is slidably connected in each of the plurality of second sliding connection grooves. A second pressing spring is connected to the second sliding connection seat. The second sliding connection seat is elastically supported and connected to the inside of the second sliding connection groove through the second pressing spring. The second sliding connection seat is connected to the carrier lower pressing plate.

[0025] As a further description of the above technical solution:

[0026] On the other side of the carrier push rear seat, a second adapter frame is connected. Inside the second adapter frame, a second adapter inner core is rotatably connected. At the other end of the second adapter inner core, an electric push rod is installed. At the other end of the electric push rod, a third adapter inner core is connected. Outside the third adapter inner core, a third adapter frame is rotatably connected. The other end of the third adapter frame is connected to the flip cover.

[0027] As a further description of the above technical solution:

[0028] The carrier reverse push assembly includes two rear support seats. At the end face of the rear support seat, a third sliding connection groove is opened. Inside the third sliding connection groove, a third sliding connection seat is slidably connected. A third downward pressure spring is connected to the third sliding connection seat. The third sliding connection seat is elastically supported and connected to the inner wall of the third sliding connection groove through the third downward pressure spring;

[0029] At the end face of the third sliding connection seat, a lifting pile is connected. At the bottom of the lifting pile, an assembly groove is opened. Inside the assembly groove, a support roller is rotatably connected. The support roller is in rolling connection with the rear compensation plate. The same carrier reverse push plate is connected between the two rear support seats;

[0030] Guide rail seats are connected to the granulation machine shell at positions corresponding to the carrier layering assembly and the two support rollers.

[0031] An aerobic granular sludge granulation preparation process includes:

[0032] S1. Using the biological filler polyurethane as the granulation carrier, applying force to the flip cover through the handle. The flip cover rotates inside the first adapter frame through the first adapter inner core. The first adapter inner core will drive the pin to rotate, and the pin twists the transfer spring to make it elastically deformed. After the flip cover is opened, neatly place the granulation carrier to be crushed on the rear compensation plate. Then slowly remove the force acting on the handle. The transfer spring starts to do elastic reset movement. Under the action of the elastic force of the transfer spring, the flip cover covers the rear compensation plate again. During this process, the carrier lower pressing plate covers the granulation carrier. Under the padding action of the granulation carrier, the carrier lower pressing plate retracts into the telescopic cylinder through the telescopic rod and squeezes the first downward pressure spring to make it elastically deformed;

[0033] S2. Install a small motor on the gear shaft of the sector gear. First, control the operation of the small motor and the granulation machine shell. Then control the operation of the electric push rod. The electric push rod makes an extension movement. The two ends of the electric push rod rotate inside the second adapter frame and the third adapter frame through the second adapter inner core and the third adapter inner core respectively. Thus, a thrust will be generated on the carrier push rear seat. Under the action of the thrust, the carrier push rear seat pushes the carrier lower pressing plate and the granulation carrier through multiple second sliding connection seats. Under the pushing action of the carrier push rear seat, the granulation carrier moves towards the granulation port direction;

[0034] S3. During operation, the small motor drives the sector gear to rotate through the gear shaft. When the sector gear is meshed with the first transmission tooth plate or the second transmission tooth plate, two continuous and opposite mechanical forces will be generated on the carrier slitting knife through the first transmission tooth plate and the second transmission tooth plate, thereby driving the carrier slitting knife to perform corresponding reciprocating motion in the tool assembly port. During this process, the carrier slitting knife will also slide along the second sliding connection seat through the second sliding connection groove and force the second support spring to elastically deform. The elastic force generated by the deformation of the second support spring can ensure the stability of the reciprocating motion of the carrier slitting knife in the tool assembly port.

[0035] S4. When the granulation carrier moves toward the granulation port and contacts the carrier slitting knife, the first downward pressure spring applies downward pressure to the granulation carrier through the carrier downward pressure plate, so that the granulation carrier can still move stably in the process of being subjected to the resistance applied by the carrier slitting knife, and then can cut out the carrier of suitable thickness according to the granulation needs. The granulation carrier under the carrier slitting knife enters the granulation machine housing through the granulation port. The built-in granulation roller in the granulation machine housing will crush the granulation carrier into granules, and produce aerobic sludge granules with suitable particle size according to the sewage treatment needs. The granulation carrier on the carrier slitting knife continues to move until the granulation carrier under the carrier slitting knife The carrier is completely immersed in the granulation machine casing. Before the granulation carrier comes into contact with the carrier slitting knife, the support roller will roll onto the guide rail seat, and the guide rail seat will generate a reverse supporting force on the support roller. Under the action of the reverse supporting force, the support roller uses the lifting pile to drive the third sliding connecting seat to slide in the third sliding connecting groove, and squeezes the third downward pressure spring to make it elastically deformed, so that the carrier reverse push plate can be lifted to the carrier slitting knife. After completing the pushing work of some bills, the electric push rod is controlled to perform a contraction movement, and the carrier reverse push plate will push the remaining granulation carriers back to the rear compensation plate. After multiple operations, all the granulation carriers are pushed into the granulation port.

[0036] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0037] 1. In the present invention, the height of the carrier cutting knife is adjusted to produce aerobic sludge particles with a suitable particle size according to the needs of sewage treatment. Since the larger particle size of aerobic granular sludge will increase the mass transfer resistance of oxygen and nutrients, etc., causing a certain anaerobic space to be formed inside the particles, long-term operation will weaken the particle structure due to endogenous respiration of bacteria. According to the needs of sewage treatment, aerobic sludge particles with a suitable particle size are produced, and biofiller polyurethane particles are used as carriers, so that the properties of aerobic sludge particles are more stable, the particle size is normally distributed, and there are mineral cores and cross-linked mass transfer channels inside the particles, which ensure the long-term stability of the aerobic granular sludge structure.

[0038] 2. In the present invention, during the operation of the small motor, the sector gear is driven to rotate by the gear shaft. When the sector gear meshes with the first drive tooth plate or the second drive tooth plate, two continuous and opposite mechanical forces will be generated on the carrier cutting knife through the first drive tooth plate and the second drive tooth plate, thereby driving the carrier cutting knife to make corresponding reciprocating motions within the tool assembly port. During this process, the carrier cutting knife will also slide along the second sliding connecting seat through the second sliding connecting groove, and force the second support spring to undergo elastic deformation. By utilizing the elastic force generated during the deformation of the second support spring, the stability of the reciprocating motion of the carrier cutting knife within the tool assembly port can be ensured.

[0039] 3. In the present invention, the biological filler polyurethane is used as the granulation carrier, which has a reticular three-dimensional porous structure and a large specific surface area, etc. It can serve as an ideal biological attachment site and easily enable aerobic sludge to agglomerate in the pores and on the surface of the porous polyurethane filler. Description of the Drawings

[0040] Figure 1 It is a schematic diagram of the overall structure of an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0041] Figure 2 It is a schematic diagram of the structure of an aerobic granular sludge granulation preparation system and process proposed by the present invention from another perspective;

[0042] Figure 3 It is a schematic diagram of the structure of the first transfer inner core in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0043] Figure 4 It is a schematic diagram of the structure of the carrier stratification component in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0044] Figure 5 It is a schematic diagram of the structure of the carrier stratification component disassembled in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0045] Figure 6 It is an aerobic granular sludge granulation preparation system and process proposed by the present invention Figure 5 The enlarged schematic diagram of part A in;

[0046] Figure 7 It is a schematic diagram of the inner side of the flip cover in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0047] Figure 8 It is a schematic diagram of the cross-section of an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0048] Figure 9 Partial structural schematic diagram of the carrier pushing component in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0049] Figure 10 Partial structural schematic diagram of the carrier reverse pushing component in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0050] Figure 11 Structural schematic diagram of the carrier pressing device disassembled in an aerobic granular sludge granulation preparation system and process proposed by the present invention;

[0051] Figure 12 Partial structural schematic diagram of the carrier pushing component from another perspective in an aerobic granular sludge granulation preparation system and process proposed by the present invention.

[0052] Legend:

[0053] 1. Granulation housing; 2. Granulation port; 3. Carrier layering component; 301. Telescopic box; 302. Lifting tool rest; 303. Directional shaft; 304. First support spring; 305. Threaded connection cylinder; 306. Threaded connection head; 4. Carrier cutting component; 401. Carrier cutting knife; 402. First sliding connection groove; 403. First sliding connection seat; 404. Second support spring; 405. First transmission gear plate; 406. Second transmission gear plate; 407. Sector gear; 5. Rear compensation plate; 6. Carrier positioning component; 601. Flipping cover; 602. First adapter inner core; 603. First adapter frame; 604. Pin; 605. Adapter spring; 606. Handle; 607. Carrier pressing device; 6071. Linear track; 6072. Telescopic cylinder; 6073. Telescopic shaft; 6074. First pressing spring; 6075. Carrier lower pressing plate; 7. Guide rail seat; 8. Carrier pushing component; 801. Carrier pushing rear seat; 802. Second sliding connection seat; 803. Second pressing spring; 804. Second adapter frame; 805. Electric push rod; 806. Third adapter frame; 9. Carrier reverse pushing component; 901. Rear support seat; 902. Third sliding connection seat; 903. Third pressing spring; 904. Lifting pile; 905. Support roller; 906. Carrier reverse pushing plate. Detailed implementation manners

[0054] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0055] Please refer to the attached Figure 1 - Attachment Figure 12 , the present invention provides a technical solution: an aerobic granular sludge granulation preparation system, including a granulation housing 1, a granulation port 2 opened at the top of the granulation housing 1, and a carrier reverse pushing component 9. A carrier layering component 3 is embedded in the granulation port 2. A tool assembly port is opened at the end face of the lifting tool holder 302 of the carrier layering component 3, and a carrier cutting component 4 is embedded in the tool assembly port. The carrier cutting component 4 reciprocates horizontally in the tool assembly port for cutting the granulation carrier;

[0056] A rear compensation plate 5 is connected to the side end face of the granulation housing 1 corresponding to the position of the granulation port 2. A carrier positioning component 6 is connected to the rear compensation plate 5. The carrier pressing device 607 of the carrier positioning component 6 elastically presses the granulation carrier on the rear compensation plate 5. A carrier pushing component 8 is embedded inside the carrier positioning component 6 for pushing the granulation carrier pressed by the carrier pressing device 607 towards the granulation port 2.

[0057] Specifically, the carrier layering component 3 includes a telescopic box 301, the telescopic box 301 is embedded and connected in the granulation port 2. A lifting tool holder 302 is sleeved inside the telescopic box 301. A directional groove is opened at the bottom of the lifting tool holder 302, and a directional shaft 303 is sleeved in the directional groove. The end of the directional shaft 303 is connected to the inner bottom of the telescopic box 301. A first support spring 304 is sleeved on the directional shaft 303. The lifting tool holder 302 is elastically supported and connected to the inner bottom of the telescopic box 301 through the first support spring 304.

[0058] Specifically, a sinking groove is opened on the lifting tool holder 302, an adjustment hole is opened at the bottom of the sinking groove, a threaded connection head 306 is inserted and connected in the sinking groove and the adjustment hole. A threaded connection cylinder 305 is threadedly connected to the threaded surface of the threaded connection head 306. The end of the threaded connection cylinder 305 is connected to the inner bottom of the telescopic box 301. Twist the threaded connection head 306 to adjust the height of the carrier cutting component 4 to adapt to granulation carriers of different thicknesses.

[0059] Specifically, the carrier cutting component 4 includes a carrier cutting knife 401, the carrier cutting knife 401 is embedded and connected in the tool assembly port. A first sliding connection groove 402 is opened on the carrier cutting knife 401, a first sliding connection seat 403 is slidably connected in the first sliding connection groove 402. A second support spring 404 is connected to the end of the first sliding connection seat 403. The first sliding connection seat 403 is elastically supported and connected to the inside of the first sliding connection groove 402 through the second support spring 404. The first sliding connection seat 403 is connected to the inner wall of the tool assembly port.

[0060] Specifically, a reciprocating motion port is formed at the top of the carrier cutting knife 401. On both sides of the inner wall of the reciprocating motion port, a first transmission gear plate 405 and a second transmission gear plate 406 are respectively connected. A same sector gear 407 is meshed between the second transmission gear plate 406 and the first transmission gear plate 405. The sector gear 407 is rotationally connected to the tool assembly port through a gear shaft.

[0061] Specifically, the carrier positioning assembly 6 includes a flip cover 601. A first adapter inner core 602 is connected to the side end face of the flip cover 601. A first adapter bracket 603 is connected to the position of the rear compensation plate 5 corresponding to the first adapter inner core 602. The first adapter inner core 602 is embedded and connected in the first adapter bracket 603. The first adapter inner core 602 is rotationally connected to the first adapter bracket 603 through a pin 604. A transfer spring 605 is sleeved on the pin 604. The pin 604 is elastically transferred to the first adapter bracket 603 through the transfer spring 605.

[0062] A handle 606 is connected to the flip cover 601, and an anti-slip sleeve is sleeved on the handle 606.

[0063] Specifically, the carrier pressing device 607 includes a plurality of linear tracks 6071. A plurality of track grooves are formed in the inner wall of the flip cover 601, and the plurality of linear tracks 6071 are respectively slidably connected in the plurality of track grooves.

[0064] A plurality of telescopic cylinders 6072 are connected to the bottom of the linear track 6071. A telescopic shaft 6073 is sleeved in each of the plurality of telescopic cylinders 6072. A first pressing spring 6074 is sleeved on the telescopic shaft 6073 and the telescopic cylinder 6072. The telescopic shaft 6073 is elastically supported and connected to the linear track 6071 through the first pressing spring 6074. The other ends of the plurality of telescopic shafts 6073 are connected to a same carrier pressing plate 6075.

[0065] Specifically, the carrier pushing assembly 8 includes a carrier pushing rear seat 801. A plurality of second sliding connection grooves are formed in the position of the carrier pushing rear seat 801 corresponding to the carrier pressing plate 6075. A second sliding connection seat 802 is slidably connected in each of the plurality of second sliding connection grooves. A second pressing spring 803 is connected to the second sliding connection seat 802. The second sliding connection seat 802 is elastically supported and connected to the inside of the second sliding connection groove through the second pressing spring 803. The second sliding connection seat 802 is connected to the carrier pressing plate 6075.

[0066] Specifically, a second adapter bracket 804 is connected to the other side of the carrier pushing rear seat 801. A second adapter inner core is rotationally connected to the inner side of the second adapter bracket 804. An electric push rod 805 is installed at the other end of the second adapter inner core. A third adapter inner core is connected to the other end of the electric push rod 805. A third adapter bracket 806 is rotationally connected to the outside of the third adapter inner core. The other end of the third adapter bracket 806 is connected to the flip cover 601.

[0067] The carrier reverse thrust assembly 9 includes two rear support seats 901. A third sliding connection groove is formed at the end face of the rear support seat 901. A third sliding connection seat 902 is slidably connected in the third sliding connection groove. A third downward pressure spring 903 is connected to the third sliding connection seat 902. The third sliding connection seat 902 is elastically supported and connected to the inner wall of the third sliding connection groove through the third downward pressure spring 903;

[0068] A lifting pile 904 is connected to the end face of the third sliding connection seat 902. An assembly groove is formed at the bottom of the lifting pile 904. A support roller 905 is rotatably connected in the assembly groove. The support roller 905 is in rolling connection with the rear compensation plate 5. The same carrier reverse thrust plate 906 is connected between the two rear support seats 901;

[0069] Guide rail seats 7 are connected to the granulator housing 1 at positions corresponding to the carrier layering assembly 3 and the two support rollers 905.

[0070] An aerobic granular sludge granulation preparation process includes:

[0071] S1. Using the biological filler polyurethane as the granulation carrier, applying force to the flip cover 601 through the handle 606. The flip cover 601 rotates inside the first transfer frame 603 through the first transfer inner core 602. The first transfer inner core 602 will drive the pin 604 to rotate. The pin 604 twists the transfer spring 605 to cause elastic deformation. After the flip cover 601 is opened, the granulation carriers to be crushed are neatly placed on the rear compensation plate 5. Then, the force applied to the handle 606 is slowly removed. The transfer spring 605 starts to perform elastic reset movement. Under the action of the elastic force of the transfer spring 605, the flip cover 601 covers the rear compensation plate 5 again. During this process, the carrier lower pressing plate 6075 covers the granulation carriers. Under the padding action of the granulation carriers, the carrier lower pressing plate 6075 retracts into the telescopic cylinder 6072 through the telescopic rod and squeezes the first downward pressure spring 6074 to cause elastic deformation;

[0072] S2. Install a small motor on the gear shaft of the sector gear 407. First, control the operation of the small motor and the granulator housing 1. Then, control the operation of the electric push rod 805. The electric push rod 805 performs an extension movement. The two ends of the electric push rod 805 rotate inside the second transfer frame 804 and the third transfer frame 806 through the second transfer inner core and the third transfer inner core respectively. Furthermore, a thrust will be generated on the carrier pushing rear seat 801. Under the action of the thrust, the carrier pushing rear seat 801 pushes the carrier lower pressing plate 6075 and the granulation carriers through a plurality of second sliding connection seats 802. Under the pushing action of the carrier pushing rear seat 801, the granulation carriers move towards the granulation port 2;

[0073] S3. During operation, the small motor drives the sector gear 407 to rotate through the gear shaft. When the sector gear 407 is meshed with the first transmission tooth plate 405 or the second transmission tooth plate 406, two continuous and opposite mechanical forces will be generated on the carrier slitting knife 401 through the first transmission tooth plate 405 and the second transmission tooth plate 406, thereby driving the carrier slitting knife 401 to perform corresponding reciprocating motion in the tool assembly port. During this process, the carrier slitting knife 401 will also slide along the second sliding connection seat 802 through the second sliding connection groove and force the second support spring 404 to undergo elastic deformation. The elastic force generated by the deformation of the second support spring 404 can ensure the stability of the reciprocating motion of the carrier slitting knife 401 in the tool assembly port.

[0074] S4. When the granulation carrier moves toward the granulation port 2 and contacts the carrier slitting knife 401, the first downward pressure spring 6074 applies downward pressure to the granulation carrier through the carrier downward pressure plate 6075, so that the granulation carrier can still move stably in the process of being subjected to the resistance applied by the carrier slitting knife 401, and then can cut out a carrier of suitable thickness according to the granulation needs. The granulation carrier under the carrier slitting knife 401 enters the granulation machine housing 1 through the granulation port 2. The built-in granulation roller of the granulation machine housing 1 will crush the granulation carrier into granules, and produce aerobic sludge granules with suitable particle size according to the needs of sewage treatment. The granulation carrier on the carrier slitting knife 401 continues to move until the granulation carrier under the carrier slitting knife 401 is completely immersed. In the granulating machine housing 1, before the granulating carrier comes into contact with the carrier slitting knife 401, the supporting roller 905 will roll onto the guide rail seat 7, and the guide rail seat 7 will generate a reverse supporting force on the supporting roller 905. Under the action of the reverse supporting force, the supporting roller 905 uses the lifting pile 904 to drive the third sliding connecting seat 902 to slide in the third sliding connecting groove, and squeeze the third downward pressure spring 903 to make it elastically deformed, so that the carrier reverse push plate 906 can be lifted to the carrier slitting knife 401. After completing the pushing work of some bills, the electric push rod 805 is controlled to perform a contraction movement, and the carrier reverse push plate 906 will push the remaining granulating carriers back to the rear compensation plate 5. After multiple operations, all the granulating carriers are pushed into the granulating port 2.

[0075] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aerobic granular sludge granulation preparation system, comprising a granulation casing (1), a granulation port (2) opened at the top of the granulation casing (1), and a carrier back-pushing assembly (9), characterized in that, An embedded carrier layering component (3) is connected inside the granulation port (2). A tool assembly port is formed at the end face of the lifting tool rest (302) of the carrier layering component (3), and a carrier cutting component (4) is embedded in the tool assembly port. The carrier cutting component (4) reciprocates horizontally in the tool assembly port for cutting the granulation carrier. A rear compensation plate (5) is connected to the side end face of the granulation housing (1) corresponding to the position of the granulation port (2). A carrier positioning component (6) is connected to the rear compensation plate (5). The carrier pressing device (607) of the carrier positioning component (6) elastically presses the granulation carrier on the rear compensation plate (5). An embedded carrier pushing component (8) is arranged inside the carrier positioning component (6) for pushing the granulation carrier pressed by the carrier pressing device (607) towards the granulation port (2).

2. The aerobic granular sludge granulation preparation system according to claim 1, wherein The carrier layering component (3) includes a telescopic box (301). The telescopic box (301) is embedded and connected inside the granulation port (2). A lifting tool rest (302) is sleeved inside the telescopic box (301). A guiding groove is formed at the bottom of the lifting tool rest (302), and a guiding shaft (303) is sleeved in the guiding groove. The end of the guiding shaft (303) is connected to the inner bottom of the telescopic box (301). A first support spring (304) is sleeved on the guiding shaft (303). The lifting tool rest (302) is elastically supported and connected to the inner bottom of the telescopic box (301) through the first support spring (304).

3. The aerobic granular sludge granulation preparation system according to claim 2, characterized in that, A sinking groove is formed on the lifting tool rest (302), and an adjusting hole is formed at the bottom of the sinking groove. A threaded connection head (306) is inserted and connected in the sinking groove and the adjusting hole. A threaded connection cylinder (305) is threadedly connected to the threaded surface of the threaded connection head (306). The end of the threaded connection cylinder (305) is connected to the inner bottom of the telescopic box (301). By twisting the threaded connection head (306), the height of the carrier cutting component (4) is adjusted to adapt to granulation carriers of different thicknesses.

4. The aerobic granular sludge granulation preparation system according to claim 3, characterized in that, The carrier cutting component (4) includes a carrier cutting knife (401). The carrier cutting knife (401) is embedded and connected in the tool assembly port. A first sliding connection groove (402) is formed on the carrier cutting knife (401). A first sliding connection seat (403) is slidably connected in the first sliding connection groove (402). A second support spring (404) is connected to the end of the first sliding connection seat (403). The first sliding connection seat (403) is elastically supported and connected to the inside of the first sliding connection groove (402) through the second support spring (404). The first sliding connection seat (403) is connected to the inner wall of the tool assembly port.

5. The aerobic granular sludge granulation preparation system according to claim 4, characterized in that, A reciprocating movement port is formed at the top of the carrier cutting knife (401). A first transmission tooth plate (405) and a second transmission tooth plate (406) are respectively connected to both sides of the inner wall of the reciprocating movement port. The same sector gear (407) is meshed between the second transmission tooth plate (406) and the first transmission tooth plate (405). The sector gear (407) is rotationally connected to the tool assembly port through a gear shaft.

6. The aerobic granular sludge granulation preparation system according to claim 5, characterized in that, The carrier positioning component (6) includes a flip cover (601). A first adapter inner core (602) is connected to the side end face of the flip cover (601). A first adapter bracket (603) is connected to the position of the rear compensation plate (5) corresponding to the first adapter inner core (602). The first adapter inner core (602) is embedded and connected in the first adapter bracket (603). The first adapter inner core (602) is rotationally connected to the first adapter bracket (603) through a pin (604). A transfer spring (605) is sleeved on the pin (604). The pin (604) is elastically transferred with the first adapter bracket (603) through the transfer spring (605). A handle (606) is connected to the flip cover (601). An anti-slip sleeve is sleeved on the handle (606).

7. An aerobic granular sludge granulation preparation system according to claim 6, characterized in that, The carrier pressing device (607) includes a plurality of linear tracks (6071). A plurality of track grooves are formed in the inner wall of the flip cover (601). The plurality of linear tracks (6071) are respectively slidably connected in the plurality of track grooves. A plurality of telescopic cylinders (6072) are connected to the bottom of the linear track (6071). A telescopic shaft (6073) is sleeved in each of the plurality of telescopic cylinders (6072). A first pressing spring (6074) is sleeved on the telescopic shaft (6073) and the telescopic cylinder (6072). The telescopic shaft (6073) is elastically supported and connected to the linear track (6071) through the first pressing spring (6074). The other ends of the plurality of telescopic shafts (6073) are connected to the same carrier pressing plate (6075).

8. An aerobic granular sludge granulation preparation system according to claim 7, characterized in that, The carrier pushing component (8) includes a carrier pushing rear seat (801). A plurality of second sliding connection grooves are formed in the carrier pushing rear seat (801) corresponding to the position of the carrier pressing plate (6075). A second sliding connection seat (802) is slidably connected in each of the plurality of second sliding connection grooves. A second pressing spring (803) is connected to the second sliding connection seat (802). The second sliding connection seat (802) is elastically supported and connected to the inside of the second sliding connection groove through the second pressing spring (803). The second sliding connection seat (802) is connected to the carrier pressing plate (6075).

9. An aerobic granular sludge granulation preparation system according to claim 8, characterized in that, Another side of the carrier pushing rear seat (801) is connected to a second adapter bracket (804). A second adapter inner core is rotatably connected to the inner side of the second adapter bracket (804). An electric push rod (805) is installed at the other end of the second adapter inner core. The other end of the electric push rod (805) is connected to a third adapter inner core. The outer side of the third adapter inner core is rotatably connected to a third adapter bracket (806). The other end of the third adapter bracket (806) is connected to the flip cover (601). The carrier reverse thrust assembly (9) includes two rear support seats (901). A third sliding connection groove is formed at the end face of the rear support seat (901). A third sliding connection seat (902) is slidably connected in the third sliding connection groove. A third downward pressing spring (903) is connected to the third sliding connection seat (902). The third sliding connection seat (902) is elastically supported and connected to the inner wall of the third sliding connection groove through the third downward pressing spring (903). A lifting pile (904) is connected to the end face of the third sliding connection seat (902). An assembly groove is formed at the bottom of the lifting pile (904). A support roller (905) is rotatably connected in the assembly groove. The support roller (905) is in rolling connection with the rear compensation plate (5). The same carrier reverse thrust plate (906) is connected between the two rear support seats (901). Guide rail seats (7) are connected to the granulation machine shell (1) corresponding to the positions of the carrier layering assembly (3) and the two support rollers (905).

10. A granulation preparation process for the aerobic granular sludge granulation preparation system according to claim 9, characterized in that, Including: S1. Using biological filler polyurethane as the granulation carrier, apply force to the flip cover (601) through the handle (606). The flip cover (601) rotates inside the first transfer frame (603) through the first transfer inner core (602). The first transfer inner core (602) will drive the pin (604) to rotate. The pin (604) twists the transfer spring (605) to cause elastic deformation. After the flip cover (601) is opened, neatly place the granulation carrier to be crushed on the rear compensation plate (5). Then slowly remove the force acting on the handle (606). The transfer spring (605) starts to perform elastic reset movement. Under the elastic force of the transfer spring (605), the flip cover (601) covers the rear compensation plate (5) again. During this process, the carrier lower pressing plate (6075) covers the granulation carrier. Under the padding action of the granulation carrier, the carrier lower pressing plate (6075) retracts into the telescopic cylinder (6072) through the telescopic rod and squeezes the first downward pressing spring (6074) to cause elastic deformation. S2. Install a small motor on the gear shaft of the sector gear (407). First, control the operation of the small motor and the granulation machine shell (1). Then control the operation of the electric push rod (805). The electric push rod (805) performs an extension movement. The two ends of the electric push rod (805) rotate inside the second transfer frame (804) and the third transfer frame (806) through the second transfer inner core and the third transfer inner core respectively. Thus, a thrust is generated on the carrier pushing rear seat (801). Under the action of the thrust, the carrier pushing rear seat (801) pushes the carrier lower pressing plate (6075) and the granulation carrier through a plurality of second sliding connection seats (802). Under the pushing action of the carrier pushing rear seat (801), the granulation carrier moves towards the granulation port (2). S3. During the operation of the small motor, the sector gear (407) is driven to rotate by the gear shaft. When the sector gear (407) meshes with the first transmission tooth plate (405) or the second transmission tooth plate (406), two consecutive and opposite mechanical forces will be generated on the carrier cutting knife (401) through the first transmission tooth plate (405) and the second transmission tooth plate (406), thereby driving the carrier cutting knife (401) to perform corresponding reciprocating motions within the tool assembly port. During this process, the carrier cutting knife (401) will also slide along the second sliding connection seat (802) through the second sliding connection groove, and force the second support spring (404) to undergo elastic deformation. By utilizing the elastic force generated during the deformation of the second support spring (404), the stability of the reciprocating motion of the carrier cutting knife (401) within the tool assembly port can be ensured; S4. When the granulation carrier moves towards the granulation port (2) and contacts the carrier cutting knife (401), since the first downward pressure spring (6074) applies a downward pressure on the granulation carrier through the carrier lower pressing plate (6075), the granulation carrier can still travel stably during the process of being resisted by the carrier cutting knife (401), and thus the carrier with a suitable thickness can be cut according to the granulation requirements. The granulation carrier located under the carrier cutting knife (401) enters the interior of the granulation machine housing (1) through the granulation port (2). The granulation hob built into the granulation machine housing (1) will crush the granulation carrier into granular form, and aerobic sludge particles with a suitable particle size can be produced according to the sewage treatment requirements. The granulation carrier located on the carrier cutting knife (401) continues to travel until the granulation carrier located under the carrier cutting knife (401) is completely immersed in the granulation machine housing (1). Before the granulation carrier contacts the carrier cutting knife (401), the support roller (905) will roll onto the guide rail seat (7), and the guide rail seat (7) generates a reverse support force on the support roller (905). Under the action of the reverse support force, the support roller (905) drives the third sliding connection seat (902) to slide within the third sliding connection groove by means of the lifting pile (904), and squeezes the third downward pressure spring (903) to undergo elastic deformation, so that the carrier reverse pushing plate (906) can be lifted onto the carrier cutting knife (401). After completing the pushing work of part of the bills, the electric push rod (805) is controlled to perform a contraction motion, and the carrier reverse pushing plate (906) will push the remaining granulation carrier back onto the rear compensation plate (5). After multiple operations, all the granulation carriers are pushed into the granulation port (2).

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