CN113860698A

CN113860698A - Novel sludge drying machine

Info

Publication number: CN113860698A
Application number: CN202111347862.8A
Authority: CN
Inventors: 邹庐泉; 乐俊超; 储夏; 王东; 陈纪军
Original assignee: Shanghai Dongshitang Renewable Energy Co Ltd
Current assignee: Shanghai Dongshitang Renewable Energy Co Ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2021-12-31
Anticipated expiration: 2041-11-15
Also published as: CN113860698B

Abstract

The invention discloses a novel sludge drying machine, which relates to the technical field of sludge treatment and comprises a supporting mechanism, an extrusion mechanism, a conveying mechanism and a drying mechanism, wherein the conveying mechanism is fixedly arranged on the supporting mechanism; the extrusion mechanism is arranged, so that the moisture of the sludge can be preliminarily extruded, and the subsequent treatment is facilitated; the sludge heating and evaporating device has the advantages that the conveying mechanism is arranged, so that the sludge can be heated and evaporated while being conveyed; according to the sludge drying device, the drying mechanism is arranged, spiral heating evaporation is adopted, the evaporation area is increased, so that sludge drying is more thorough, and more germs can be killed at high temperature; the invention can realize multi-position linkage evaporation and automatic water collection, and is more practical and more efficient compared with a chemical drying method and a manual drying method.

Description

Novel sludge drying machine

Technical Field

The invention relates to the technical field of sludge treatment, in particular to a novel sludge drying machine.

Background

In the technical field of drying of sludge treatment, the sludge treatment technology aims at reduction, harmlessness, stabilization and resource utilization. The high water content is a great problem of sludge treatment and a key bottleneck of sludge treatment, so that a sludge drying technology arises, wherein the sludge heat drying becomes an effective and environment-friendly sludge treatment method along with the continuous progress of the technology and the accumulation of practical experience, and in the sludge treatment process, the drying equipment of the sludge always has the defects of complex operation, high cost, small treatment amount, large energy consumption, easy secondary pollution and the like; the utility model discloses a chinese utility model patent with publication number CN203440226U discloses a novel sludge drying machine, including controlling means and the feeding storehouse of following end to end in proper order in the vertical direction, heat transfer storehouse and feed bin, inside is equipped with thermometer and charge level indicator, heat transfer storehouse evenly distributed has the heat transfer plate of a plurality of vertical settings, be equipped with high-temperature steam air inlet and condensate water delivery port on the lateral wall of heat transfer storehouse, controlling means is connected with thermometer and charge level indicator respectively, controlling means inputs high-temperature steam in to the heat transfer storehouse according to the feeding signal that the charge level indicator sensed, controlling means adjusts the flow of unit interval to the heat transfer storehouse of inputing high-temperature steam according to the temperature signal that the thermometer sensed, the device can realize airtight sludge drying, but fail to realize drying and water collection many times to mud, cause the mummification thoroughly easily.

Disclosure of Invention

Aiming at the technical problems, the technical scheme adopted by the invention is as follows: a novel sludge drying machine comprises a supporting mechanism, an extruding mechanism, a conveying mechanism and a drying mechanism, wherein the conveying mechanism is fixedly arranged on the supporting mechanism; the extruding mechanism comprises a motor, a feeding assembly, a plurality of extruding assemblies and a drainage assembly, wherein the feeding assembly is arranged on the conveying mechanism, the motor is arranged on the feeding assembly, the plurality of extruding assemblies are sequentially arranged on the feeding assembly, any one extruding assembly is connected with the motor, and the drainage assembly is arranged on the feeding assembly; the extrusion assembly comprises an adsorption barrel cover, a water absorption barrel, extrusion plates, a drainage cover, a transmission gear and a drainage rotating pipe, wherein the adsorption barrel cover is rotatably installed on a supporting frame, the adsorption barrel cover and the water absorption barrel are fixedly installed, the circumference of the water absorption barrel is uniformly provided with the extrusion plates, the water absorption barrel is also provided with a water inlet, the water inlet of the water absorption barrel is arranged between the two extrusion plates, the drainage rotating pipe is fixedly installed inside the water absorption barrel, the drainage rotating pipe is internally provided with a conical cavity, the drainage rotating pipe is provided with a water inlet, the water inlet of the drainage rotating pipe is communicated with the water inlet of the water absorption barrel, the drainage rotating pipe is communicated with the drainage cover, the drainage cover is rotatably installed on the supporting frame, the drainage cover is provided with the transmission gear, and the transmission gear is used for driving the extrusion assemblies to synchronously move to extrude sludge.

Further, the feeding assembly comprises a supporting seat, a supporting frame and a feeding disc, the supporting seat is fixedly installed on the conveying mechanism, the supporting frame is fixedly installed on the supporting seat, and the feeding disc is fixedly installed on the supporting frame.

Furthermore, the drainage assembly comprises a water tank and a water outlet pipe, the water tank is communicated with the drainage cover, the water tank is fixedly mounted on the supporting seat, the water tank is communicated with the water outlet pipe, and the water outlet pipe is communicated with the water receiving pool.

Furthermore, the supporting mechanism comprises a bottom support, a water receiving tank and a water inlet, wherein the water receiving tank is fixedly arranged on the bottom support, and the water inlet is fixedly arranged on the water receiving tank.

Further, transport mechanism include first synchronous belt, carry seat, baffle, conveyer belt, drive roll, driven voller, backup pad, heating pipe, feed inlet, the first end and the absorption cover in first synchronous belt link to each other, the second end and the drive roll in first synchronous belt link to each other, the both ends of drive roll are rotated and are installed on carrying the seat, carry seat fixed mounting on the support of bottom, baffle fixed mounting is on carrying the seat, the conveyer belt cover is established on drive roll and driven voller, backup pad fixed mounting is on carrying the seat, the both ends fixed mounting of heating pipe is in the backup pad, feed inlet fixed mounting is on carrying the seat.

Further, mummification mechanism include drive assembly, mummification subassembly, transport assembly, drive assembly set up on supporting mechanism, the mummification subassembly sets up on supporting mechanism, transport assembly sets up the inside at the mummification subassembly.

Further, the drive assembly include second hold-in range, mount, bevel pinion, big bevel gear, drive pinion, the first end and the drive roll of second hold-in range link to each other, the second end and the bevel pinion of second hold-in range link to each other, bevel pinion rotates and installs on the mount, mount fixed mounting is on the bottom support, bevel pinion and big bevel gear meshing installation, bevel pinion rotates and installs on the mount, bevel pinion and drive pinion fixed mounting.

Further, the drying component comprises a fixing plate, a spiral heating shell, a transmission gear wheel, a rotary heating frame, a heating cover, heating pipes, a linkage gear, a pinion, a transmission seat, a synchronous gear and a top gear, wherein the spiral heating shell is fixedly arranged on the fixing plate, the fixing plate is fixedly arranged on a bottom support, the spiral heating shell is communicated with a water inlet, the spiral heating shell is communicated with a feed inlet, the transmission gear wheel is meshed with the transmission pinion, the transmission gear wheel is fixedly arranged with the rotary heating frame, the rotary heating frame is rotatably arranged on the spiral heating shell, the heating pipes are provided with a plurality of heating pipes, the heating pipes are uniformly arranged on the circumference of the rotary heating frame, the heating cover is arranged on the outer side of each heating pipe, the rotary heating frame is provided with two heating pipes, the two ends of each heating pipe are fixedly arranged on the two rotary heating frames, the linkage gear is fixedly arranged on the rotary heating frame, linkage gear and pinion meshing installation, pinion rotate to be installed on the transmission seat, transmission seat fixed mounting is on spiral heating shell, pinion and synchro gear fixed mounting, synchro gear and top gear meshing installation, top gear rotate to be installed on spiral heating shell.

Further, the conveying assembly comprises a layered conveying blade, a rotating shaft and a mud outlet, the rotating shaft and the top gear are fixedly installed, a plurality of water guide grooves are formed in the length direction of the rotating shaft, the layered conveying blade is fixedly installed on the rotating shaft, the layered conveying blade and the mud outlet are coaxially arranged, the mud outlet is fixedly installed in the spiral heating shell, and the mud outlet is communicated with the spiral heating shell.

Compared with the prior art, the invention has the beneficial effects that: (1) the extrusion mechanism is arranged, so that the moisture of the sludge can be preliminarily extruded, and the subsequent treatment is facilitated; (2) the sludge heating and evaporating device has the advantages that the conveying mechanism is arranged, so that the sludge can be heated and evaporated while being conveyed; (3) according to the sludge drying device, the drying mechanism is arranged, spiral heating evaporation is adopted, the evaporation area is increased, so that sludge drying is more thorough, and more germs can be killed at high temperature; (4) the invention can realize multi-position linkage evaporation and automatic water collection, and is more practical and more efficient compared with a chemical drying method and a manual drying method.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic structural diagram of the supporting mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the extrusion mechanism of the present invention.

Fig. 4 is a partial schematic view of the pressing mechanism of the present invention.

FIG. 5 is a cross-sectional view of the extrusion assembly of the present invention.

FIG. 6 is a schematic view of a conveying mechanism according to the present invention.

FIG. 7 is a partial schematic view of the transfer mechanism of the present invention.

Fig. 8 is a schematic structural view of a drying mechanism according to the present invention.

Fig. 9 is a partially enlarged view of a portion a of fig. 8 according to the present invention.

Fig. 10 is a partial schematic view of a drying mechanism according to the present invention.

Fig. 11 is another partial schematic view of the drying mechanism of the present invention.

Reference numerals: 1-a support mechanism; 2-an extrusion mechanism; 3-a transfer mechanism; 4-a drying mechanism; 101-a bottom support; 102-a water receiving tank; 103-a water inlet; 201-a support seat; 202-a support frame; 203-a feed tray; 204-a motor; 205-adsorption cartridge cover; 206-a water suction cylinder; 207-a compression plate; 208-a drainage cover; 209-drive gear; 210-a water tank; 211-water outlet pipe; 212-a drain runner; 301-a first synchronization belt; 302-a delivery seat; 303-a baffle plate; 304-a conveyor belt; 305-a drive roll; 306-a driven roller; 307-a support plate; 308-heating the tube; 309-feed inlet; 401-a second synchronous belt; 402-a fixed plate; 403-spiral heating shell; 404-a mount; 405-bevel pinion gear; 406-large bevel gear; 407-drive pinion; 408-driving gearwheel; 409-rotating the heating frame; 410-a heat generating cover; 411-a heating tube; 412-a linkage gear; 413-pinion gear; 414-a transmission seat; 415-a synchronizing gear; 416-a top gear; 417-layered conveying blades; 418-rotating shaft; 419-mud outlet.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example (b): as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, and fig. 11, the novel sludge drying machine includes a supporting mechanism 1, a squeezing mechanism 2, a conveying mechanism 3, and a drying mechanism 4, wherein the conveying mechanism 3 is fixedly installed on the supporting mechanism 1, the squeezing mechanism 2 is fixedly installed on the conveying mechanism 3, and the drying mechanism 4 is fixedly installed on the supporting mechanism 1.

The supporting mechanism 1 is characterized in that a water receiving tank 102 is fixedly arranged on a bottom support 101, and a water inlet 103 is fixedly arranged on the water receiving tank 102.

The extrusion mechanism 2, wherein the supporting base 201 is fixedly installed on the conveying base 302, the supporting frame 202 is fixedly installed on the supporting base 201, the feeding plate 203 is fixedly installed on the supporting frame 202, the motor 204 is fixedly installed on the supporting frame 202, the output shaft of the motor 204 and the absorbing cylinder cover 205 are fixedly installed, the absorbing cylinder cover 205 and the water suction cylinder 206 are fixedly installed, a plurality of extrusion plates 207 are uniformly arranged on the circumference of the water suction cylinder 206, a water inlet is also arranged on the water suction cylinder 206, the water inlet of the water suction cylinder 206 is arranged between the two extrusion plates 207, a water drainage rotary pipe 212 is fixedly installed inside the water suction cylinder 206, a conical cavity is arranged inside the water drainage rotary pipe 212, a water inlet is arranged on the water drainage rotary pipe 212, the water inlet of the water drainage rotary pipe 212 is communicated with the water inlet of the water suction cylinder 206, the water drainage rotary pipe 212 is communicated with the water drainage cover 208, the water drainage cover 208 is rotatably installed on the supporting frame 202, a transmission gear 209 is arranged on the water drainage cover 208, four adsorption cylinder covers 205, a water suction cylinder 206, a drainage cover 208 and a squeezing plate 207 are arranged, four transmission gears 209 are sequentially meshed and mounted, the drainage cover 208 is communicated with a water tank 210, the water tank 210 is fixedly mounted on a supporting seat 201, the water tank 210 is communicated with a water outlet pipe 211, and the water outlet pipe 211 is communicated with a water receiving tank 102.

The conveying mechanism 3 is characterized in that a first end of a first synchronous belt 301 is connected with the adsorption cylinder cover 205, a second end of the first synchronous belt 301 is connected with a driving roller 305, the driving roller 305 is rotatably installed on a conveying seat 302, the conveying seat 302 is fixedly installed on the bottom support 101, a baffle plate 303 is fixedly installed on the conveying seat 302, the conveying belt 304 is sleeved on the driving roller 305 and a driven roller 306, a supporting plate 307 is fixedly installed on the conveying seat 302, two ends of a heating pipe 308 are fixedly installed on the supporting plate 307, and a feeding port 309 is fixedly installed on the conveying seat 302.

The drying mechanism 4, wherein a first end of a second synchronous belt 401 is connected with a driving roller 305, a second end of the second synchronous belt 401 is connected with a small bevel gear 405, the small bevel gear 405 is rotatably installed on a fixed frame 404, the fixed frame 404 is fixedly installed on a bottom bracket 101, a spiral heating shell 403 is fixedly installed on a fixed plate 402, the fixed plate 402 is fixedly installed on the bottom bracket 101, the spiral heating shell 403 is communicated with a water inlet 103, the small bevel gear 405 is meshed with a large bevel gear 406, the large bevel gear 406 is fixedly installed with a transmission small gear 407, the transmission small gear 407 is meshed with a transmission large gear 408, the transmission large gear 408 is fixedly installed with a rotary heating frame 409, the rotary heating frame 409 is rotatably installed on the spiral heating shell 403, a plurality of heating pipes 411 are uniformly arranged on the circumference of the rotary heating frame 409, a heating cover 410 is arranged outside each heating pipe 411, the rotary heating frame 409 is provided with two, two ends of the heating tube 411 are fixedly installed on the two rotary heating frames 409, the linkage gear 412 is fixedly installed on the rotary heating frame 409, the linkage gear 412 and the pinion 413 are installed in a meshed mode, the pinion 413 is installed on the transmission seat 414 in a rotating mode, the transmission seat 414 is fixedly installed on the spiral heating shell 403, the pinion 413 and the synchronous gear 415 are fixedly installed, the synchronous gear 415 and the top gear 416 are installed in a meshed mode, the top gear 416 is installed on the spiral heating shell 403 in a rotating mode, the top gear 416 and the rotating shaft 418 are fixedly installed, a plurality of water guide grooves are formed in the length direction of the rotating shaft 418, layered conveying blades 417 are fixedly installed on the rotating shaft 418, a mud outlet 419 is fixedly installed inside the spiral heating shell 403, and the mud outlet 419 is communicated with the spiral heating shell 403.

The working principle of the invention is as follows: when the water receiving tank works, slurry is put into the feeding disc 203, the slurry slides into the supporting frame 202 from the feeding disc 203, part of water passes through the water suction cylinder 206, enters the water drainage rotating pipe 212, flows out of the water drainage cover 208 through the conical cavity, flows into the water tank 210 and flows into the water receiving tank 102 along the water outlet pipe 211; the motor 204 is started, the motor 204 drives the adsorption cylinder cover 205 to rotate, the adsorption cylinder cover 205 drives the water suction cylinders 206, the drainage rotating pipe 212 and the drainage cover 208 to synchronously rotate, the drainage cover 208 drives the transmission gear 209 to rotate, the transmission gear 209 drives other transmission gears 209 to rotate, all the water suction cylinders 206 are further driven to synchronously rotate, the extrusion plate 207 on the water suction cylinder 206 forms a roller clamp, and water seepage is facilitated after slurry is extruded through the extrusion plate 207.

The extruded sludge falls onto the conveying belt 304, the adsorption barrel cover 205 drives the driving roller 305 to rotate through the first synchronous belt 301, the driving roller 305 drives the driven roller 306 to rotate through the conveying belt 304 to convey the slurry, meanwhile, supporting plates 307 are installed on two sides of the conveying seat 302, heating pipes 308 are installed on the supporting plates 307, and the heating pipes 308 are electrified to heat the sludge, so that the sludge is evaporated and dried and then flows into the feeding hole 309.

The sludge flows into the spiral heating shell 403 from the feeding port 309, is conveyed upwards through the rotating layered conveying blade 417 and is heated during the rotating conveying, and the evaporated water vapor and water are discharged downwards through the water guide groove in the length direction of the rotating shaft 418 and flow into the water receiving tank 102 through the water inlet 103.

The driving roller 305 drives the small bevel gear 405 to rotate through the second synchronous belt 401, the small bevel gear 405 drives the large bevel gear 406 to rotate, the large bevel gear 406 drives the transmission small gear 407 to rotate, the transmission small gear 407 drives the transmission large gear 408 to rotate, the transmission large gear 408 drives the rotary heating frame 409 to rotate, the rotary heating frame 409 drives the heating cover 410 and the heating tube 411 to rotate, the heating cover 410 concentrates heat on the surface of the spiral heating shell 403, the heating tube 411 is driven by the rotary heating frame 409 to rotate and heat, so that the surface of the spiral heating shell 403 is heated more uniformly, and the evaporation area is increased; the heating cover 410 and the heating pipe 411 drive the rotary heating frame 409 on the other side to rotate, the rotary heating frame 409 drives the linkage gear 412 to rotate, the linkage gear 412 drives the pinion 413 to rotate, the pinion 413 drives the synchronous gear 415 to rotate, the synchronous gear 415 drives the top gear 416 to rotate, the top gear 416 drives the rotating shaft 418 and the layered conveying blades 417 to rotate, and the layered conveying blades 417 enable dried sludge to be discharged from the sludge outlet 419.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and fall within the scope of the present invention.

Claims

1. The utility model provides a novel sludge drying machine, includes supporting mechanism (1), extrusion mechanism (2), transport mechanism (3), mummification mechanism (4), its characterized in that: the conveying mechanism (3) is fixedly arranged on the supporting mechanism (1), the extruding mechanism (2) is fixedly arranged on the conveying mechanism (3), and the drying mechanism (4) is fixedly arranged on the supporting mechanism (1);

the extrusion mechanism (2) comprises a feeding assembly, a plurality of extrusion assemblies and a drainage assembly, wherein the feeding assembly is arranged on the conveying mechanism (3), the plurality of extrusion assemblies are sequentially arranged on the feeding assembly, any one of the extrusion assemblies is connected with a motor (204), and the drainage assembly is arranged on the feeding assembly;

the extrusion component comprises an adsorption cylinder cover (205), a water suction cylinder (206), a drainage cover (208), a transmission gear (209) and a drainage rotary pipe (212), the adsorption cylinder cover (205) and the water suction cylinder (206) are fixedly installed, a plurality of extrusion plates (207) are uniformly arranged on the circumference of the water suction cylinder (206), a water inlet is further formed in the water suction cylinder (206), the water inlet of the water suction cylinder (206) is arranged between the two extrusion plates (207), a drainage rotary pipe (212) is fixedly installed inside the water suction cylinder (206), a conical cavity is formed inside the drainage rotary pipe (212), a water inlet is formed in the drainage rotary pipe (212), the water inlet of the drainage rotary pipe (212) is communicated with the water inlet of the water suction cylinder (206), the drainage rotary pipe (212) is communicated with the drainage cover (208), a transmission gear (209) is arranged on the drainage cover (208), and the transmission gear (209) is used for driving the plurality of extrusion assemblies to synchronously move.

2. The novel sludge drying machine as claimed in claim 1, characterized in that: the feeding assembly comprises a supporting seat (201), a supporting frame (202) and a feeding disc (203), wherein the supporting seat (201) is fixedly installed on the conveying mechanism (3), the supporting frame (202) is fixedly installed on the supporting seat (201), and the feeding disc (203) is fixedly installed on the supporting frame (202).

3. The novel sludge drying machine as claimed in claim 1, characterized in that: the water drainage assembly comprises a water tank (210) and a water outlet pipe (211), the water tank (210) is communicated with a water drainage cover (208), the water tank (210) is communicated with the water outlet pipe (211), and the water outlet pipe (211) is communicated with the water receiving pool (102).

4. The novel sludge drying machine as claimed in claim 1, characterized in that: the supporting mechanism (1) comprises a bottom support (101), a water receiving tank (102) and a water inlet (103), wherein the water receiving tank (102) is fixedly installed on the bottom support (101), and the water inlet (103) is fixedly installed on the water receiving tank (102).

5. The novel sludge drying machine as claimed in claim 1, characterized in that: the conveying mechanism (3) comprises a first synchronous belt (301), a conveying seat (302), a conveying belt (304), a driving roller (305), a driven roller (306), a heating pipe (308) and a feeding hole (309), wherein the first end of the first synchronous belt (301) is connected with an adsorption barrel cover (205), the second end of the first synchronous belt (301) is connected with the driving roller (305), two ends of the driving roller (305) are rotatably installed on the conveying seat (302), a baffle plate (303) is arranged on the conveying seat (302), the conveying belt (304) is sleeved on the driving roller (305) and the driven roller (306), a supporting plate (307) is further arranged on the conveying seat (302), two ends of the heating pipe (308) are fixedly installed on the supporting plate (307), and the feeding hole (309) is fixedly installed on the conveying seat (302).

6. The novel sludge drying machine as claimed in claim 1, characterized in that: the drying mechanism (4) comprises a transmission assembly, a drying assembly and a conveying assembly, wherein the transmission assembly is arranged on the supporting mechanism (1), the drying assembly is arranged on the supporting mechanism (1), and the conveying assembly is arranged in the drying assembly.

7. The novel sludge drying machine as claimed in claim 6, characterized in that: the transmission assembly comprises a second synchronous belt (401), a fixing frame (404), a small bevel gear (405), a large bevel gear (406) and a transmission pinion (407), the first end of the second synchronous belt (401) is connected with a driving roller (305), the second end of the second synchronous belt (401) is connected with the small bevel gear (405), the small bevel gear (405) is rotatably installed on the fixing frame (404), the small bevel gear (405) is meshed with the large bevel gear (406) and is installed, and the large bevel gear (406) is fixedly installed with the transmission pinion (407).

8. The novel sludge drying machine as claimed in claim 7, characterized in that: the drying component comprises a spiral heating shell (403), a transmission gear wheel (408), a rotary heating frame (409), a heating cover (410), heating pipes (411), a linkage gear wheel (412), a pinion (413), a transmission seat (414), a synchronous gear wheel (415) and a top gear wheel (416), wherein the spiral heating shell (403) is communicated with a water inlet (103), the spiral heating shell (403) is communicated with a feed inlet (309), the transmission gear wheel (408) is meshed with the transmission pinion (407) and is fixedly installed with the rotary heating frame (409), the rotary heating frame (409) is rotatably installed on the spiral heating shell (403), the heating pipes (411) are provided with a plurality of heating pipes (411) which are uniformly arranged on the circumference of the rotary heating frame (409), the outer side of each heating pipe (411) is provided with the heating cover (410), rotatory heating frame (409) are provided with two, the both ends fixed mounting of heating tube (411) is on rotatory heating frame (409), linkage gear (412) fixed mounting is on rotatory heating frame (409), linkage gear (412) and pinion (413) meshing installation, pinion (413) rotate and install on driving seat (414), driving seat (414) fixed mounting is on spiral heating shell (403), pinion (413) and synchronous gear (415) fixed mounting, synchronous gear (415) and top gear (416) meshing installation, top gear (416) rotate and install on spiral heating shell (403).

9. The novel sludge drying machine as claimed in claim 8, wherein: the conveying assembly comprises layered conveying blades (417), a rotating shaft (418) and a sludge outlet (419), the rotating shaft (418) and a top gear (416) are fixedly installed, a plurality of water guide grooves are formed in the length direction of the rotating shaft (418), the layered conveying blades (417) are fixedly installed on the rotating shaft (418), the sludge outlet (419) is fixedly installed inside a spiral heating shell (403), and the sludge outlet (419) is communicated with the spiral heating shell (403).