A granulation device for sludge recovery

Abstract

The application discloses a granulating device for sludge recovery, which comprises a supporting frame and further comprises a granulating unit, a crushing unit, a coarse crushing assembly arranged above a feeding port of the granulating unit and used for crushing large sludge, a fine crushing assembly arranged below the coarse crushing assembly and used for rubbing and crushing the sludge after coarse crushing, and a driving assembly arranged at one end of the coarse crushing assembly and used for synchronously driving the coarse crushing assembly, the fine crushing assembly and the granulating unit to respectively perform coarse crushing, fine crushing and granulation. After the coarse crushing assembly crushes the large sludge into small pieces, the small pieces of sludge fall onto the fine crushing assembly, the fine crushing assembly synchronously rubs the small pieces of sludge, the small pieces of sludge with uneven density are evenly rubbed into smaller sludge, the smaller sludge is discharged from the fine crushing assembly into the granulating unit, and the granulating unit performs extrusion granulation on the crushed sludge, so that the density of the crushed sludge is uniform and the subsequent sludge granulation quality is improved.

Description

Technical Field

[0001] This invention relates to the field of sludge recycling technology, specifically to a granulation device for sludge recycling. Background Technology

[0002] Sludge from urban sewage treatment typically has a water content of about 80%, is rich in organic matter and other nutrients, but also contains a certain amount of heavy metals and harmful substances such as viruses, pathogens, and parasite eggs. Improper disposal of sludge can cause serious secondary environmental pollution. Currently, the main destination of sewage sludge from sewage treatment plants in my country is landfills. With the continuous improvement of sewage treatment rates, the large amount of sludge produced has placed a huge burden on landfills, shortened their service life, and consequently affected urban waste disposal. This has made suitable landfill sites increasingly limited. Therefore, more and more sludge is being used for granulation and recycling. Granulated sludge can be used as fertilizer and has very high utilization potential.

[0003] Existing sludge granulators typically use two separate machines for crushing and granulation. First, large sludge pieces are crushed in a crusher, and then repeatedly crushed until the final size meets granulation requirements. This process is complex, making it impossible to combine crushing and granulation in a single machine. The overall efficiency is low, and even after multiple rounds of crushing, uneven density distribution within the crushed sludge persists, resulting in loose granules that negatively impact granulation quality.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a granulation device for sludge recycling, in order to solve the problems mentioned in the background art, that the sludge granulation process in the prior art requires crushing and granulation to be carried out separately in two devices, which is complicated, has low working efficiency, and the crushed sludge still has uneven density distribution inside the sludge, making the granulated particles easy to become loose and affecting the granulation quality.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A granulation device for sludge recycling includes a support frame and further includes:

[0008] The granulation unit, installed at the top of the support frame, is used to granulate the crushed sludge.

[0009] The crushing unit includes a coarse crushing component located above the feed inlet of the granulation unit for crushing large pieces of sludge, a fine crushing component located below the coarse crushing component for kneading and crushing the coarsely crushed sludge, and a drive component located at one end of the coarse crushing component for simultaneously driving the coarse crushing component, the fine crushing component, and the granulation unit to perform coarse crushing, fine crushing, and granulation operations respectively.

[0010] Furthermore, the coarse crushing component includes:

[0011] A feed guide frame is installed at the upper end of the support frame and located outside the granulation unit;

[0012] The first rotating roller is connected to one end of the drive assembly and located inside the guide frame. The outer side of the first rotating roller is provided with first crushing teeth for crushing large pieces of sludge.

[0013] The second roller is connected to one end of the drive assembly and located on one side of the first roller. The outer side of the second roller is evenly distributed with second crushing teeth for cooperating with the first crushing teeth to crush large pieces of sludge.

[0014] Furthermore, the coarse crushing component also includes:

[0015] Two sets of guide blocks are provided opposite to each other and are fixedly connected to the inner wall of the guide frame. The upper end of the guide block is inclined and is used to guide large pieces of sludge to the first crushing tooth and the second crushing tooth for crushing.

[0016] A cleaning port is located on the side of the guide block and is used to clean the sludge adhering to the outside of the first crushing tooth and the second crushing tooth.

[0017] Furthermore, the fine crushing component includes:

[0018] A fixing block is fixedly connected inside the middle of the guide frame and located between the first and second rotating rollers;

[0019] The cleaning teeth are arranged in multiple sets at equal intervals and fixedly connected to both sides of the fixed block. They are used to work with the cleaning port to clean the sludge adhering to the outside of the first and second crushing teeth.

[0020] Furthermore, the fine crushing component also includes:

[0021] The support plate is located at the upper opening of the granulation unit;

[0022] The crushing inlet is uniformly and penetrates the interior of the support plate, and is used to finely crush the sludge after it has been crushed by the coarse crushing component.

[0023] Furthermore, a first guide groove is provided through the interior of the fixing block;

[0024] A slider is slidably inserted inside the first guide groove;

[0025] The lower end of the slider is fixedly connected to a swing block that contacts the upper end of the support plate;

[0026] The two ends of the swing block in the direction of movement are provided with downward-sloping ejection ramps, which are used to knead the sludge that has fallen onto the bearing plate after coarse crushing and eject it from the crushing port.

[0027] Furthermore, a second guide groove is provided inside the fixing block and at the middle of the upper end of the first guide groove;

[0028] A guide block is slidably inserted inside the second guide groove, and the guide block is provided with a reciprocating threaded hole inside;

[0029] A reciprocating screw is threaded inside the reciprocating threaded hole and is used to drive the guide block to reciprocate.

[0030] The transmission wheel is fixedly sleeved on the outside of the reciprocating screw and located at one end of the fixed block;

[0031] A belt for driving the drive wheel to rotate is fitted on the outside of the drive wheel, and the other end of the belt is fitted on the outside of the first roller.

[0032] Furthermore, the granulation unit includes:

[0033] An extrusion tube is installed at the upper end of the support frame;

[0034] The spiral pusher is rotatably installed at one end of the drive assembly and located inside the extrusion tube. It is used to extrude the sludge that falls into the extrusion tube after being crushed by the fine crushing assembly along the extrusion tube.

[0035] A shrink tube is connected to the discharge end of the extrusion tube via a flange. The inner diameter of the shrink tube gradually decreases along the extrusion direction of the sludge and is used to compact the sludge extruded by the screw pusher.

[0036] An extrusion die is installed at the discharge end of the shrink tube. The interior of the extrusion die has multiple granulation ports evenly distributed for granulating the extruded sludge.

[0037] Furthermore, the driving component includes:

[0038] The drive motor is mounted on the upper end of the support frame and located on one side of the coarse crushing component;

[0039] The main shaft is connected to the drive end of the drive motor. One end of the main shaft opposite to the drive motor is fixedly connected to one end of the spiral pusher, which is used to drive the spiral pusher to rotate.

[0040] Furthermore, the driving component also includes:

[0041] The first gear is fixedly sleeved on the outside of the main shaft and located between the drive motor and the spiral pusher.

[0042] A speed-increasing gear is rotatably connected to one side of the guide frame, and the speed-increasing gear meshes with the first gear;

[0043] The second gear is fixedly connected to one end of the second roller, and the second gear meshes with the speed-increasing gear.

[0044] The third gear is fixedly connected to one end of the first rotating roller. The third gear meshes with the second gear and is used to drive the first rotating roller to rotate.

[0045] Compared with the prior art, the beneficial effects of the present invention are:

[0046] This invention involves feeding large sludge pieces into a crushing unit, where a drive assembly simultaneously drives a coarse crushing assembly, a fine crushing assembly, and a granulation unit to perform crushing and granulation operations. The coarse crushing assembly breaks the large sludge pieces into smaller pieces, which then fall onto the fine crushing assembly. The fine crushing assembly simultaneously kneads these smaller pieces, uniformly kneading the unevenly sized sludge into even smaller pieces before discharging them into the granulation unit. The granulation unit then extrudes and granulates the crushed sludge. This allows for the use of the same power source on the same equipment to crush and granulate the sludge, ensuring uniform internal density of the crushed sludge and improving the quality of subsequent sludge granulation. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 This is a schematic diagram of the crushing unit structure of the present invention;

[0049] Figure 3 This is a schematic diagram of the drive component structure of the present invention;

[0050] Figure 4 This is a diagram showing the coordination relationship between the granulation unit and the crushing unit of the present invention;

[0051] Figure 5 This is a diagram showing the coordination relationship between the coarse crushing unit and the fine crushing unit of the present invention;

[0052] Figure 6 This is a schematic diagram of the internal structure of the coarse crushing unit of the present invention;

[0053] Figure 7This is a schematic diagram of the internal structure of the fine crushing component of the present invention;

[0054] Figure 8 This is a diagram showing the fit between the swing block and the support plate of the present invention.

[0055] Reference numerals: 100, support frame; 1, granulation unit; 11, extrusion pipe; 12, spiral pusher; 13, shrinkage pipe; 131, flange; 14, extrusion die; 141, granulation port; 2, crushing unit; 21, fine crushing assembly; 211, fixing block; 212, cleaning teeth; 213, first guide groove; 2131, second guide groove; 214, guide block; 2141, reciprocating threaded hole; 215, slider; 216, swing block; 2161, ejection ramp; 217, bearing plate; 2 171. Crushing inlet; 218. Reciprocating screw; 2181. Drive wheel; 2182. Belt; 22. Coarse crushing assembly; 221. Guide frame; 2211. Guide block; 2212. Cleaning inlet; 222. First rotating roller; 2221. First crushing tooth; 223. Second rotating roller; 2231. Second crushing tooth; 23. Drive assembly; 231. Drive motor; 232. Main shaft; 233. First gear; 234. Speed-up gear; 235. Second gear; 236. Third gear. Detailed Implementation

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

[0057] Please see Figures 1-8 The present invention provides a technical solution:

[0058] A granulation device for sludge recycling includes a support frame 100, and further includes:

[0059] Granulation unit 1 is installed at the upper end of support frame 100 and is used to granulate crushed sludge.

[0060] The crushing unit 2 includes a coarse crushing component 22 located above the feed inlet of the granulation unit 1 for crushing large pieces of sludge, a fine crushing component 21 located below the coarse crushing component 22 for kneading and crushing the coarsely crushed sludge, and a drive component 23 located at one end of the coarse crushing component 22 for synchronously driving the coarse crushing component 22, the fine crushing component 21, and the granulation unit 1 to perform coarse crushing, fine crushing, and granulation operations respectively.

[0061] It should be noted that when sludge needs to be granulated, large pieces of sludge are placed into the crushing unit 2. The drive component 23 simultaneously drives the coarse crushing component 22, the fine crushing component 21, and the granulation unit 1 to perform crushing and granulation operations. The coarse crushing component 22 crushes the large pieces of sludge into smaller pieces, which then fall onto the fine crushing component 21. The fine crushing component 21 simultaneously kneads the small pieces of sludge, making the unevenly sized pieces of sludge uniformly kneaded into even smaller pieces. These smaller pieces are then discharged from the fine crushing component 21 into the granulation unit 1, where the crushed sludge is extruded and granulated. This allows for the use of the same power source on the same equipment to crush and granulate the sludge, ensuring uniform internal density of the crushed sludge and improving the subsequent sludge granulation quality.

[0062] As an improvement, such as Figure 2 , Figures 4-6 As shown, the coarse crushing component 22 includes:

[0063] The material guide frame 221 is installed at the upper end of the support frame 100 and located outside the granulation unit 1;

[0064] The first rotating roller 222 is connected to one end of the drive assembly 23 and located inside the guide frame 221. The outer side of the first rotating roller 222 is provided with first crushing teeth 2221 for crushing large pieces of sludge.

[0065] The second roller 223 is connected to one end of the drive assembly 23 and located on one side of the first roller 222. The outer side of the second roller 223 is evenly distributed with second crushing teeth 2231 for cooperating with the first crushing teeth 2221 to crush large pieces of sludge.

[0066] Furthermore, the coarse crushing component 22 also includes:

[0067] Two sets of guide blocks 2211 are provided opposite to each other and are fixedly connected to the inner wall of the guide frame 221. The upper end of the guide block 2211 is inclined and is used to guide large pieces of sludge to the first crushing tooth 2221 and the second crushing tooth 2231 for crushing.

[0068] The cleaning port 2212 is located on the side of the guide block 2211 and is used to clean the sludge adhering to the outside of the first crushing tooth 2221 and the second crushing tooth 2231.

[0069] As an improvement, such as Figures 7-8 As shown, the fine crushing component 21 includes:

[0070] The fixing block 211 is fixedly connected to the middle of the inside of the guide frame 221 and located between the first rotating roller 222 and the second rotating roller 223;

[0071] The cleaning teeth 212 are provided in multiple sets at equal intervals and are fixedly connected to both sides of the fixing block 211. They are used to cooperate with the cleaning port 2212 to clean the sludge adhering to the outside of the first crushing tooth 2221 and the second crushing tooth 2231.

[0072] Furthermore, the fine crushing component 21 also includes:

[0073] A support plate 217 is provided at the upper opening of the granulation unit 1, and the support plate 217 is fixedly connected to the lower ends of the fixing block 211 and the guide block 2211.

[0074] The crushing port 2171 is uniformly opened through the interior of the bearing plate 217 and is used to fine crush the sludge after it has been crushed by the coarse crushing component 22.

[0075] Furthermore, a first guide groove 213 is provided through the interior of the fixing block 211;

[0076] A slider 215 is slidably inserted inside the first guide groove 213;

[0077] The lower end of the slider 215 is fixedly connected to a swing block 216 that contacts the upper end of the support plate 217;

[0078] The swing block 216 has inclined downward ejection slopes 2161 at both ends in the direction of movement, which are used to knead the sludge that has fallen onto the bearing plate 217 after coarse crushing and eject it from the crushing port 2171.

[0079] The fixing block 211 has a second guide groove 2131 located inside the upper middle of the first guide groove 213;

[0080] A guide block 214 is slidably inserted inside the second guide groove 2131, and the guide block 214 is provided with a reciprocating threaded hole 2141 inside;

[0081] The reciprocating screw 218 is threaded inside the reciprocating threaded hole 2141 and is used to drive the guide block 214 to reciprocate.

[0082] The transmission wheel 2181 is fixedly sleeved on the outside of the reciprocating screw 218 and located at one end of the fixed block 211;

[0083] The transmission wheel 2181 is fitted with a belt 2182 for driving the transmission wheel 2181 to rotate, and the other end of the belt 2182 is fitted with the outer side of the first roller 222.

[0084] As an improvement, such as Figure 4 , Figure 6 As shown, the granulation unit 1 includes:

[0085] The extrusion tube 11 is installed at the upper end of the support frame 100;

[0086] The spiral pusher 12 is rotatably installed at one end of the drive assembly 23 and located inside the extrusion tube 11. It is used to extrude the sludge that falls into the extrusion tube 11 after being crushed by the fine crushing assembly 21 along the extrusion tube 11.

[0087] The shrink tube 13 is connected to the discharge end of the extrusion tube 11 via a flange 131. The inner diameter of the shrink tube 13 gradually decreases along the extrusion direction of the sludge and is used to compact the sludge extruded by the screw pusher 12.

[0088] An extrusion die 14 is installed at the discharge end of the shrink tube 13. The interior of the extrusion die 14 has a plurality of granulation ports 141 evenly distributed for granulating the extruded sludge. A cutter is rotatably provided on the outside of the granulation ports 141 of the extrusion die 14 for cutting the extruded sludge strips. The cutter is not shown in the figure.

[0089] As an improvement, such as Figures 3-5 As shown, the driving component 23 includes:

[0090] The drive motor 231 is mounted on the upper end of the support frame 100 and located on one side of the coarse crushing component 22;

[0091] The main shaft 232 is connected to the drive end of the drive motor 231. One end of the main shaft 232, which is opposite to the drive motor 231, is fixedly connected to one end of the spiral pusher 12 to drive the spiral pusher to rotate.

[0092] Furthermore, the driving component 23 also includes:

[0093] The first gear 233 is fixedly sleeved on the outside of the main shaft 232 and located between the drive motor 231 and the spiral pusher 12;

[0094] The speed-increasing gear 234 is rotatably connected to one side of the guide frame 221, and the speed-increasing gear 234 meshes with the first gear 233;

[0095] The second gear 235 is fixedly connected to one end of the second roller 223, and the second gear 235 meshes with the speed-increasing gear 234;

[0096] The third gear 236 is fixedly connected to one end of the first rotating roller 222. The third gear 236 meshes with the second gear 235 and is used to drive the first rotating roller 222 to rotate.

[0097] It should be noted that: in the specific implementation process of this invention, such as Figures 1-2 , Figures 4-6As shown, the drive motor 231 is started, and the drive motor 231 drives the first gear 233 to rotate through the main shaft 232. The first gear 233 drives the second gear 235 to rotate through the speed-increasing gear 234. The second gear 235 drives the second crushing tooth 2231 to rotate through the second rotating roller 223. At the same time, the second gear 235 drives the first rotating roller 222 to rotate through the third gear 236. The first rotating roller 222 drives the first crushing tooth 2221 to rotate. The large pieces of sludge that need to be granulated are put into the guide frame 221. At this time, under the rotation action of the first crushing tooth 2221 and the second crushing tooth 2231, the large pieces of sludge are crushed by the first crushing tooth 2221 and the second crushing tooth 2231 and fall onto the bearing plate 217 through the gap between the cleaning teeth 212, thus completing the initial crushing of the large pieces of sludge.

[0098] like Figures 7-8 As shown, while the first roller 222 drives the first crushing tooth 2221 to rotate, it also drives the transmission wheel 2181 to rotate via the belt 2182. The transmission wheel 2181 drives the guide block 214 to move back and forth along the second guide groove 2131 via the reciprocating screw 218 and the reciprocating threaded hole 2141. The guide block 214 drives the swing block 216 to slide back and forth along the upper end of the support plate 217 via the slider 215. The swing block 216, through the ejection inclined surface 2161, kneads the small pieces of sludge that fall continuously on the upper end of the support plate 217 along the upper surface of the support plate 217 and then squeezes them into the extrusion pipe 11 through the crushing opening 2171. This makes the density of each part of the small pieces of sludge remain uniform after kneading. By squeezing the small pieces of sludge through the crushing opening 2171, the sludge can be crushed into smaller pieces at the crushing opening 2171, which improves the quality of subsequent sludge granulation and avoids looseness caused by uneven density distribution inside the sludge.

[0099] like Figures 3-5 As shown, while the main shaft 232 drives the first gear 233 to rotate, the main shaft 232 also drives the spiral pusher 12 to rotate inside the extrusion tube 11. This causes the sludge, which has been crushed into smaller pieces by the crushing port 2171, to enter the shrinkage tube 13 along the extrusion tube 11 under the squeezing action of the spiral pusher 12. The sludge gradually gathers into a continuous state along the shrinkage tube 13 and then enters the extrusion die 14. Subsequently, the sludge is extruded into a long strip along the granulation port 141 and is reciprocally cut into granules by the cutter set outside the granulation port 141. This achieves synchronous crushing and granulation operations in the same equipment with the same power source, resulting in high working efficiency.

[0100] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0101] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A granulation device for sludge recycling, comprising a support frame (100), characterized in that, Also includes: The granulation unit (1) is installed at the upper end of the support frame (100) and is used to granulate the crushed sludge. The crushing unit (2) includes a coarse crushing component (22) located above the feed inlet of the granulation unit (1) for crushing large pieces of sludge, a fine crushing component (21) located below the coarse crushing component (22) for kneading and crushing the coarsely crushed sludge, and a drive component (23) located at one end of the coarse crushing component (22) for synchronously driving the coarse crushing component (22), the fine crushing component (21), and the granulation unit (1) to perform coarse crushing, fine crushing, and granulation operations respectively. The fine crushing component (21) includes: Fixed block (211); A support plate (217) is located at the upper opening of the granulation unit (1); The crushing port (2171) is uniformly opened through the interior of the bearing plate (217) for fine crushing of the sludge after crushing by the coarse crushing component (22); The fixing block (211) has a first guide groove (213) running through its interior; A slider (215) is slidably inserted inside the first guide groove (213); The lower end of the slider (215) is fixedly connected to a swing block (216) that contacts the upper end of the bearing plate (217); The swing block (216) has inclined downward ejection ramps (2161) at both ends of the moving direction, which are used to knead the sludge that has fallen onto the bearing plate (217) after coarse crushing and eject it from the crushing port (2171); The fixing block (211) is provided with a second guide groove (2131) inside and at the middle of the upper end of the first guide groove (213); A guide block (214) is slidably inserted inside the second guide groove (2131), and the guide block (214) is provided with a reciprocating threaded hole (2141); A reciprocating screw (218) is threaded inside the reciprocating threaded hole (2141) and is used to drive the guide block (214) to reciprocate. The transmission wheel (2181) is fixedly sleeved on the outside of the reciprocating screw (218) and located at one end of the fixed block (211); The transmission wheel (2181) is fitted with a belt (2182) for driving the transmission wheel (2181) to rotate, and the other end of the belt (2182) is fitted with the outer side of the first roller (222).

2. The granulation device for sludge recycling according to claim 1, characterized in that: The coarse crushing component (22) includes: The feed guide frame (221) is installed at the upper end of the support frame (100) and located outside the granulation unit (1); The first rotating roller (222) is connected to one end of the drive assembly (23) and located inside the guide frame (221). The outer side of the first rotating roller (222) is provided with first crushing teeth (2221) for crushing large pieces of sludge. The second roller (223) is connected to one end of the drive assembly (23) and located on one side of the first roller (222). The outer side of the second roller (223) is evenly distributed with second crushing teeth (2231) for cooperating with the first crushing teeth (2221) to crush large pieces of sludge.

3. A granulation device for sludge recycling according to claim 2, characterized in that: The coarse crushing component (22) also includes: Two sets of guide blocks (2211) are provided opposite to each other and are fixedly connected to the inner wall of the guide frame (221). The upper end of the guide block (2211) is inclined and is used to guide large pieces of sludge to the first crushing tooth (2221) and the second crushing tooth (2231) for crushing. A cleaning port (2212) is provided on the side of the guide block (2211) for cleaning the sludge adhering to the outside of the first crushing tooth (2221) and the second crushing tooth (2231).

4. A granulation device for sludge recycling according to claim 2, characterized in that: The fine crushing component (21) also includes: The fixing block (211) is fixedly connected inside the middle of the guide frame (221) and located between the first rotating roller (222) and the second rotating roller (223); The cleaning teeth (212) are provided in multiple sets at equal intervals and are fixedly connected to both sides of the fixed block (211). They are used to cooperate with the cleaning port (2212) to clean the sludge adhering to the outside of the first crushing tooth (2221) and the second crushing tooth (2231).

5. A granulation device for sludge recycling according to claim 2, characterized in that: The granulation unit (1) includes: The extrusion tube (11) is installed at the upper end of the support frame (100); The spiral pusher (12) is rotatably installed at one end of the drive assembly (23) and located inside the extrusion tube (11). It is used to extrude the sludge that falls into the extrusion tube (11) after being crushed by the fine crushing assembly (21) along the extrusion tube (11). A shrink tube (13) is connected to the discharge end of the extrusion tube (11) via a flange (131). The inner diameter of the shrink tube (13) gradually decreases along the extrusion direction of the sludge and is used to compact the sludge extruded by the spiral pusher (12). An extrusion die (14) is installed at the discharge end of the shrink tube (13). The interior of the extrusion die (14) has a plurality of granulation ports (141) evenly distributed for granulating the extruded sludge.

6. A granulation device for sludge recycling according to claim 5, characterized in that: The driving component (23) includes: The drive motor (231) is mounted on the upper end of the support frame (100) and located on one side of the coarse crushing component (22); The main shaft (232) is connected to the drive end of the drive motor (231). One end of the main shaft (232) relative to the drive motor (231) is fixedly connected to one end of the spiral pusher (12) to drive the spiral pusher to rotate.

7. A granulation device for sludge recycling according to claim 6, characterized in that: The drive component (23) also includes: The first gear (233) is fixedly sleeved on the outside of the main shaft (232) and located between the drive motor (231) and the spiral pusher (12); A speed-increasing gear (234) is rotatably connected to one side of the guide frame (221), and the speed-increasing gear (234) meshes with the first gear (233); The second gear (235) is fixedly connected to one end of the second roller (223), and the second gear (235) meshes with the speed-increasing gear (234); The third gear (236) is fixedly connected to one end of the first roller (222). The third gear (236) meshes with the second gear (235) to drive the first roller (222) to rotate.

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