CN113562954A

CN113562954A - Sludge dewatering and drying system for recycling waste gas

Info

Publication number: CN113562954A
Application number: CN202110908859.2A
Authority: CN
Inventors: 陈鹏
Original assignee: Shandong Jingsheng Mechanical Equipment Co ltd
Current assignee: Shenzhen Baoqingtian Environmental Protection Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2021-10-29
Anticipated expiration: 2041-08-09
Also published as: CN113562954B

Abstract

The invention belongs to the field of sludge treatment, and relates to a sludge dewatering and drying system for recovering waste gas, which comprises a shell, wherein a drying plate grabbing device is arranged on the upper side of the shell and used for grabbing and moving a drying plate to a required position, a sludge airing device is arranged in the middle of the inner side of the shell and used for reducing the water content of sludge, a sludge sweeping device is arranged at the bottom of the shell and used for sweeping sludge falling in a drying process, and a sludge drying barrel is fixed at the bottom of the shell. The sludge drying device can be used for drying sludge, the sludge is coated on the net-shaped structure after entering the system, the net-shaped structure is hung on the fixed track, the sludge is dried by the heating device, the dried sludge is automatically collected into the designated container, and meanwhile, generated waste gas is collected, so that the environmental pollution is reduced.

Description

Sludge dewatering and drying system for recycling waste gas

Technical Field

The invention belongs to the field of sludge treatment, and particularly relates to a sludge dewatering and drying system for recycling waste gas.

Background

As is well known, sludge treatment is a process of performing reduction, stabilization and innocent treatment on sludge. The higher the degree of wastewater treatment, the more sludge residue will be produced to be treated. A general sewage treatment plant must be provided with a sludge treatment facility unless the sewage is treated using land treatment or a sewage pond. For modern sewage treatment plants, the treatment and disposal of sludge has become the most complex and costly part of the operation of sewage treatment systems. The drying treatment of the sludge is the most basic part, the drying efficiency of the sludge directly affects the subsequent treatment efficiency of the sludge, and waste gas polluting the environment is easily generated in the drying process of the sludge.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a sludge dewatering and drying system for recovering waste gas, which can dry sludge and reduce the pollution of waste gas to the environment.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a retrieve sludge dewatering mummification system of waste gas, includes the casing, the casing upside is equipped with mummification board grabbing device, and mummification board grabbing device is used for snatching the mummification board and removes the position to needs, the inboard middle part of casing is equipped with sludge airing device, and sludge airing device is used for making the water content of mud reduce, the casing bottom is equipped with sludge sweeping device, and sludge sweeping device is used for sweeping the mud that the mummification in-process dropped, the casing bottom is fixed with dry mud bucket.

Preferably, mummification board grabbing device is including fixing casing top downside slide, the slide downside slides and is equipped with the sliding block, the sliding block downside is fixed with promptly the motor, promptly the motor output is equipped with the grasping shaft, promptly the axle end is fixed with the grasping shaft, it is equipped with two spacing to slide on the sliding block, every be fixed with a rack on the spacing, promptly the gear with rack toothing, spacing downside is equipped with mud and adds the coating device, and mud adds the coating device and is used for adding mud and scribble the mummification device with mud on.

Preferably, the mud adds the coating device including fixing the mud bucket of casing bottom, the casing inboard is fixed with defeated mud way, every the spacing downside is fixed with one and goes up the pole, every it is equipped with a grabbing pole to go up the inboard slip of pole from top to bottom, every it is fixed with motor from top to bottom on the grabbing pole, every it is equipped with a lower axle to go up the motor output from top to bottom, every the end of lower axle is fixed with a lower sprocket, every it is equipped with an upper shaft on the grabbing pole, every the upper shaft outer end is fixed with an upper sprocket, every the upper shaft inner is fixed with a removal wheel, remove the wheel with go up the pole meshing from top to bottom, every it is fixed with a grabbing claw to remove the wheel lower extreme.

Preferably, mud airing device is including fixing the outer track at casing middle part, the casing middle part is fixed with interior track, the casing bottom is equipped with a plurality of heaters, the casing upside is fixed with the exhaust-gas duct, the exhaust-gas duct end is fixed with the air collecting pump, be equipped with a plurality of gas collecting ports on the exhaust-gas duct, interior track with outer track middle part slides and is equipped with a plurality of mud and props the net device, and mud props the net device and is used for the increase of mud surface area.

Preferably, the sludge net supporting device comprises a rail block which is arranged on the upper sides of the outer rail and the inner rail in a sliding manner, a mover is fixed on the upper side of the rail block, a driven rotating gear is arranged on the lower side of the rail block, a connecting rod is fixed on the lower side of the driven rotating gear, a rotating motor is fixed on the connecting rod, a rotating shaft is arranged at the output end of the rotating motor, a driving rotating gear is fixed at the tail end of the rotating shaft and is meshed with the driven rotating gear, a hydraulic cylinder is fixed on the lower side of the connecting rod, a hydraulic rod is arranged in the hydraulic cylinder in a sliding manner, a connecting block is fixed at the lower end of the hydraulic rod, a supporting rod is arranged on each of two sides of the connecting block, a connecting nail is arranged in the connecting block, a fixing nail is fixed at the tail end of each supporting rod, a sliding tube is arranged between each supporting rod and each fixing nail, and a stretching and moving rod is fixed on the inner side of the connecting rod, each sliding tube is sleeved on the diastole moving rod, a net fixing block rod is fixed on the lower side of each sliding tube, a net fixing block is fixed at the tail end of each net fixing block rod, an inner supporting rod is arranged on one side of each net fixing block rod, an outer supporting rod is arranged on the other side of each net fixing block rod, a net fixing block is arranged at the tail end of each outer supporting rod, a net fixing block is arranged at the tail end of each inner supporting rod, a middle nail is arranged in the middle of each inner supporting rod and the middle of each outer supporting rod on the same side, an end nail is arranged between each two ends of each inner supporting rod and the middle of each net fixing block, four middle nails, sixteen end nails, four outer supporting rods, four inner supporting rods, four net fixing blocks and a diastole net are fixed in the middle of the four net fixing blocks on the same side.

Preferably, the mud is swept the device and is included fixing the inboard anterior fixed block of casing, the fixed block inside with slide between the casing and be equipped with and sweep the mud pole, sweep mud pole end and be fixed with and turn over the board ware, turn over the board and be equipped with and sweep the mud board under the board ware, be fixed with on the casing and sweep the mud motor, it is equipped with the worm axle to sweep mud motor output, the epaxial two worms that are fixed with of worm, use bearing symmetry installation two on the casing to sweep the mud axle, every sweep mud axle lower extreme and be fixed with one and sweep the mud wheel, every sweep mud epaxial end and be fixed with a worm wheel, every worm and every the worm wheel meshing, two sweep the mud wheel inboard clamp tightly sweep the mud pole.

When sludge needs to be dried, sludge enters the sludge barrel through the sludge conveying channel, the sliding block slides to the position above the sludge barrel along the slide way, the upper motor and the lower motor are started, the lower shaft rotates to drive the lower chain wheel to rotate, the chain moves to drive the upper chain wheel to rotate, the upper shaft rotates to drive the movable wheel to rotate, the grasping rod moves downwards, when the diastole net is immersed in the sludge, the hydraulic cylinder is started to drive the hydraulic rod to move upwards to drive the connecting block to move upwards to draw the two support rods together, the two sliding pipes are driven to draw close together, the two net fixing block rods are drawn together to drive the outer support rods and the inner support rods to clamp tightly, the diastole net area is enlarged to be fully contacted with the sludge, the rotating motor is started to rotate the rotating shaft to drive the main rotating gear to rotate, the connecting rod rotates around the driven rotating gear, the relaxation net rotates in sludge, the sludge is fully smeared on the relaxation net and is immersed into the sludge barrel, so that the smearing of the sludge is more sufficient, the net structure is expanded, and the surface area of the sludge is increased.

After the sludge is smeared on the diastolic net, the upper and lower motors are started to rotate reversely, so that the whole sludge net supporting device rises to be separated from the sludge barrel, the rotating shaft is restarted to slide to the gap between the outer rail and the inner rail, the upper and lower motors are restarted to enable the whole sludge net supporting device to come onto the outer rail and the inner rail, the grasping motor is started to rotate the grasping shaft to drive the grasping gear to rotate, the rack moves outwards to drive the limiting strips to move outwards, the upper and lower rods move outwards to drive the grasping rods to move outwards, the grasping claws are separated, the rail blocks fall onto the outer rail and the inner rail, the shifter is started to enable the net supporting device to move along the rail, and the surface area of the sludge is increased due to the net-shaped structure, the drying effect is stronger, and the sludge drying is more uniform and sufficient due to the rotation of the net structure.

Simultaneously, the heater is turned on to heat the chamber, the drying of the sludge is accelerated, and the air collecting pump is started, so that the waste gas generated in the sludge drying process is collected through the gas collecting port and the waste gas pipe, simultaneously starting the mud sweeping motor to rotate the worm shaft to drive the worm to rotate, rotating the worm wheel to drive the mud sweeping shaft to rotate, the mud sweeping wheel is rotated to drive the mud sweeping rod to move, so that the plate turnover device moves, simultaneously, the mud sweeping plate is moved to sweep the mud falling at the bottom of the shell, when the head is swept, the mud sweeping motor is reversely rotated to return the mud sweeping rod to the original position, and start the board ware that turns over simultaneously for sweep the mud board and turn over upward, prevent that mud from pushing back, set up waste gas collection device, reduce the secondary pollution of sludge drying in-process to the environment, sludge cleaning device prevents that sludge from piling up and makes the efficiency of sludge drying decline.

When the sludge on the relaxation net is dried, the net supporting device moves to the notch of the track, the drying plate grabbing device works again to grab the net supporting device and moves to the position above the dry sludge barrel, the hydraulic cylinder is started, the hydraulic rod moves downwards to drive the connecting block to move downwards, the two supporting rods are driven to be separated, the two sliding pipes move outwards to drive the two net fixing blocks to be away from each other, the outer supporting rods and the inner supporting rods are separated, the area of the relaxation net is reduced and folded, the dried sludge on the relaxation net falls into the dry sludge barrel, the whole working process is circulated, the automatic sludge separation work is simple and efficient, and the sludge drying efficiency is improved through the circular reciprocating operation.

Compared with the prior art, the sludge dewatering and drying system for recycling waste gas has the following advantages:

1. submerging the mesh into the sludge barrel, so that the sludge can be smeared more fully, and the mesh structure is opened, so that the surface area of the sludge is increased.

2. Make the device of propping net along orbital motion, network structure makes the superficial area increase of mud, makes its mummification effect stronger, and network structure's rotation makes the mud mummification more even and abundant simultaneously.

3. Set up waste gas collection device, reduce the secondary pollution of sludge drying in-process to the environment, sludge cleaning device prevents that mud from piling up makes the efficiency of sludge drying decline.

4. Automatic sludge separation work is simple and efficient, and the efficiency of sludge drying is improved by cyclic reciprocating operation.

Drawings

FIG. 1 is a schematic structural diagram of a sludge dewatering and drying system for recovering waste gas.

Fig. 2 is an enlarged view of a structure a in fig. 1.

Fig. 3 is an enlarged view of the structure at B in fig. 1.

Fig. 4 is an enlarged view of the structure at C in fig. 1.

Fig. 5 is an enlarged view of the structure at D in fig. 1.

Fig. 6 is an enlarged view of the structure at E in fig. 1.

Fig. 7 is an enlarged view of the structure at F in fig. 1.

In the figure, 10, a dry mud bucket; 11. a heater; 12. sweeping the mud plate; 13. a plate turnover device; 14. sweeping the mud rod; 15. stretching the net; 16. moving the rod in a relaxation way; 17. a connecting rod; 18. an outer rail; 19. an inner rail; 20. an exhaust gas pipe; 21. an air collection port; 22. a track block; 23. a mover; 24. a slideway; 25. an air collecting pump; 26. a mud conveying channel; 27. a worm gear; 28. a fixed block; 29. a worm; 30. a worm shaft; 31. a mud sweeping motor; 32. a mud sweeping wheel; 33. sweeping the mud shaft; 34. a net fixing block; 35. an inner brace rod; 36. a net fixing block rod; 37. end nails; 38. an outer stay bar; 39. middle nail; 40. rotating the motor; 41. a rotating shaft; 42. a main rotating gear; 43. a driven gear; 44. a rack; 45. a limiting strip; 46. a slider; 47. grasping a motor; 48. the shaft is gripped; 49. grasping the gear; 50. a gripping rod; 51. an upper motor and a lower motor; 52. a lower shaft; 53. a chain; 54. an upper sprocket; 55. an upper shaft; 56. a moving wheel; 57. a lower sprocket; 58. a hydraulic cylinder; 59. a hydraulic lever; 60. connecting blocks; 61. a connecting nail; 62. a stay bar; 63. fixing nails; 64. a sliding tube; 65. grasping a claw; 66. an upper and a lower rod; 67. a sludge bucket.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, a sludge dewatering mummification system of retrieving waste gas, including casing 10, casing 10 upside is equipped with mummification board grabbing device, mummification board grabbing device is used for snatching the mummification board and removes to the position that needs, and casing 10 inboard middle part is equipped with mud airing device, and mud airing device is used for making the water content of mud reduce, and casing 10 bottom is equipped with sludge scavenging device, and sludge scavenging device is used for sweeping the mud that the mummification in-process dropped, and casing 10 bottom is fixed with dry mud bucket 11.

As shown in fig. 1, 5 and 6, the drying plate gripping device comprises a slide way 25 fixed on the lower side of the top of the casing 10, a slide block 47 is slidably arranged on the lower side of the slide way 25, a grasping motor 48 is fixed on the lower side of the slide block 47, a grasping shaft 49 is arranged at the output end of the grasping motor 48, a grasping shaft 49 is fixed at the tail end of the grasping shaft 49, two limit strips 46 are slidably arranged on the slide block 47, a rack 45 is fixed on each limit strip 46, the grasping gear 50 is meshed with the rack 45, a sludge adding device is arranged on the lower side of each limit strip 46, and the sludge adding device is used for adding sludge and coating the sludge on the drying device.

As shown in fig. 1 and 6, the sludge coating device includes a sludge barrel 68 fixed at the bottom of the housing 10, a sludge conveying channel 27 is fixed at the inner side of the housing 10, an upper and lower rod 67 is fixed at the lower side of each limit strip 46, a gripping rod 51 is slidably arranged at the inner side of each upper and lower rod 67, an upper and lower motor 52 is fixed on each gripping rod 51, a lower shaft 53 is arranged at the output end of each upper and lower motor 52, a lower chain wheel 58 is fixed at the tail end of each lower shaft 53, an upper shaft 56 is arranged on each gripping rod 51, an upper chain wheel 55 is fixed at the outer end of each upper shaft 56, a movable wheel 57 is fixed at the inner end of each upper shaft 56, the movable wheel 57 is meshed with the upper and lower rods 67, and a gripping claw 66 is fixed at the lower end of each movable wheel 57.

As shown in fig. 1, 3 and 7, the sludge airing device comprises an outer rail 19 fixed at the middle part of a shell 10, an inner rail 20 is fixed at the middle part of the shell 10, a plurality of heaters 12 are arranged at the bottom of the shell 10, a waste gas pipe 21 is fixed at the upper side of the shell 10, a gas collecting pump 26 is fixed at the tail end of the waste gas pipe 21, a plurality of gas collecting ports 22 are arranged on the waste gas pipe 21, a plurality of sludge net supporting devices are arranged at the middle parts of the inner rail 20 and the outer rail 19 in a sliding manner, and the sludge net supporting devices are used for increasing the surface area of sludge.

As shown in fig. 1, 2, 3, 4 and 7, the sludge netting device includes a rail block 23 slidably disposed on the upper sides of an outer rail 19 and an inner rail 20, a mover 24 is fixed on the upper side of the rail block 23, a slave rotating gear 44 is disposed on the lower side of the rail block 23, a connecting rod 18 is fixed on the lower side of the slave rotating gear 44, a rotating motor 41 is fixed on the connecting rod 18, a rotating shaft 42 is disposed at the output end of the rotating motor 41, a master rotating gear 43 is fixed at the end of the rotating shaft 42, the master rotating gear 43 is engaged with the slave rotating gear 44, a hydraulic cylinder 59 is fixed on the lower side of the connecting rod 18, a hydraulic rod 60 is slidably disposed inside the hydraulic cylinder 59, a connecting block 61 is fixed at the lower end of the hydraulic rod 60, a brace 63 is disposed on each side of the connecting block 61, a connecting nail 62 is disposed inside the brace 63 and the connecting block 61, a fixing nail 64 is fixed at the end of each brace 63, a sliding tube 65 is disposed between each brace 63 and each fixing nail 64, the inside of the connecting rod 18 is fixed with a diastole moving rod 17, each sliding tube 65 is sleeved on the diastole moving rod 17, the lower side of each sliding tube 65 is fixed with a net fixing block rod 37, the tail end of each net fixing block rod 37 is fixed with a net fixing block 35, one side of each net fixing block rod 37 is provided with an inner support rod 36, the other side of each net fixing block rod 37 is provided with an outer support rod 39, the tail end of each outer support rod 39 is provided with a net fixing block 35, the tail end of each inner support rod 36 is provided with a net fixing block 35, the middle parts of the inner support rod 36 and the outer support rod 39 on the same side are provided with a middle nail 40, the two ends of each inner support rod 36 and the middle part of the net fixing block 35 are provided with an end nail 38, the two ends of each outer support rod 39 and the middle part of the net fixing block 35 are provided with an end nail 38, the total of four middle nails 40, sixteen end nails 38, four outer support rods 39, four inner support rods 36 and four net fixing blocks 35, and four net fixing blocks 35 on the same side are fixed with a diastole net 16.

As shown in fig. 1 and 2, the sludge sweeping device comprises a fixed block 29 fixed on the front part of the inner side of the housing 10, a sludge sweeping rod 15 is slidably arranged between the inside of the fixed block 29 and the housing 10, a plate turning device 14 is fixed at the tail end of the sludge sweeping rod 15, a sludge sweeping plate 13 is arranged below the plate turning device 14, a sludge sweeping motor 32 is fixed on the housing 10, a worm shaft 31 is arranged at the output end of the sludge sweeping motor 32, two worms 30 are fixed on the worm shaft 31, two sludge sweeping shafts 34 are symmetrically arranged on the housing 10 by using bearings, a sludge sweeping wheel 33 is fixed at the lower end of each sludge sweeping shaft 34, a worm wheel 28 is fixed at the upper end of each sludge sweeping shaft 34, each worm 30 is meshed with each worm wheel 28, and the sludge sweeping rod 15 is clamped on the inner sides of the two sludge sweeping wheels 33.

When sludge needs to be dried, sludge enters the sludge barrel 68 through the sludge conveying channel 27, the sliding block 47 slides to the upper part of the sludge barrel 68 along the slide way 25, the upper and lower motors 52 are started, the lower shaft 53 is rotated to drive the lower chain wheel 58 to rotate, the chain 54 is moved to drive the upper chain wheel 55 to rotate, the upper shaft 56 is rotated to drive the moving wheel 57 to rotate, the gripping rod 51 is moved downwards, when the expanding net 16 is immersed in the sludge, the hydraulic cylinder 59 is started to move the hydraulic rod 60 upwards to drive the connecting block 61 to move upwards, the two support rods 63 are drawn close, the two sliding pipes 65 are driven to draw close, the two net fixing block rods 37 are drawn close, the outer support rod 39 and the inner support rod 36 are driven to clamp, the area of the expanding net 16 is expanded to be fully contacted with the sludge, the rotating motor 41 is started to rotate the rotating shaft 42 to drive the main rotating gear 43 to rotate, and the connecting rod 18 rotates around the auxiliary rotating gear 44, the relaxation net 16 rotates in the sludge, the sludge is fully smeared on the relaxation net 16, the net shape is submerged into the sludge barrel, the smearing of the sludge is more sufficient, the net-shaped structure is opened, and the surface area of the sludge is increased.

After the sludge is coated on the diastolic net 16, the up-down motor 52 is started to rotate reversely, so that the whole sludge net supporting device rises to be separated from the sludge barrel 68, the rotating shaft 42 is started to slide to the gap between the outer rail 19 and the inner rail 20 again, the up-down motor 52 is started again, so that the whole sludge netting device comes to the outer rail 19 and the inner rail 20, the grasping motor 48 is started, so that the grasping shaft 49 rotates to drive the grasping gear 50 to rotate, the rack 45 moves outwards to drive the limiting strip 46 to move outwards, so that the upper and lower rods 67 move outward, bringing the grasping rod 51 to move outward, so that the grasping claws 66 are separated, make track piece 23 fall on outer track 19 and interior track 20, start shifter 24 for prop the net device along orbital motion, network structure makes the surface area increase of mud, makes its mummification effect stronger, and network structure's rotation makes the mud mummification more even and abundant simultaneously.

Meanwhile, the heater 12 is turned on to heat the chamber, so as to accelerate the drying of the sludge, and the air collecting pump 26 is started, so that the waste gas generated in the sludge drying process is collected through the gas collecting port 22 and the waste gas pipe 21, simultaneously, the mud sweeping motor 32 is started to rotate the worm shaft 31 to drive the worm 30 to rotate, the worm wheel 28 is rotated to drive the mud sweeping shaft 34 to rotate, the mud sweeping wheel 33 is rotated to drive the mud sweeping rod 15 to move, so that the plate turnover device 14 moves, at the same time, the sweeping mud plate 13 is moved to sweep the mud falling on the bottom of the housing 10, when the sweeping head is reached, the sweeping mud motor 32 is reversed, the sweeping mud rod 15 is returned to the original position, and simultaneously starting the plate turnover device 14 to turn up the sludge sweeping plate 13 to prevent sludge from pushing back, arranging a waste gas collecting device to reduce secondary pollution to the environment in the sludge drying process, and preventing sludge from being accumulated by the sludge cleaning device to reduce the sludge drying efficiency.

After the sludge on the relaxation net 16 is dried, the net supporting device moves to the gap of the track, the drying plate grabbing device works again to grab the net supporting device and moves to the position above the dry sludge barrel 11, the hydraulic cylinder 59 is started, the hydraulic rod 60 moves downwards to drive the connecting block 61 to move downwards to drive the two supporting rods 63 to separate, the two sliding pipes 65 move outwards to drive the two net fixing blocks 35 to keep away from each other, the outer supporting rod 39 and the inner supporting rod 36 separate from each other, the area of the relaxation net 16 is reduced and folded, the dried sludge on the relaxation net 16 falls into the dry sludge barrel 11, the whole working process is circulated, the automatic sludge separation work is simple and efficient, and the sludge drying efficiency is improved through the circulation reciprocating operation.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a retrieve sludge dewatering mummification system of waste gas, includes casing (10), its characterized in that, casing (10) upside is equipped with mummification board grabbing device, and mummification board grabbing device is used for snatching the mummification board and removes the position to needs, casing (10) inboard middle part is equipped with sludge drying device, and sludge drying device is used for making the water content of mud to reduce, casing (10) bottom is equipped with sludge sweeping device, and sludge sweeping device is used for sweeping the mud that the mummification in-process dropped, casing (10) bottom is fixed with dry mud bucket (11).

2. The system of claim 1, wherein the sludge dewatering and drying system comprises: drying plate grabbing device is including fixing slide (25) of casing (10) top downside, slide (25) downside slides and is equipped with sliding block (47), sliding block (47) downside is fixed with promptly motor (48), promptly motor (48) output is equipped with grabs tight axle (49), it is fixed with grabs tight axle (49) to grab tight axle (49) end, it is equipped with two spacing (46) to slide on sliding block (47), every be fixed with a rack (45) on spacing (46), promptly gear (50) with rack (45) meshing, spacing (46) downside is equipped with mud and adds the coating device, and mud adds the coating device and is used for adding mud and paints the drying device with mud on.

3. The system of claim 2, wherein the sludge dewatering and drying system for recycling waste gas comprises: the sludge adding and coating device comprises a sludge barrel (68) fixed at the bottom of the shell (10), a mud conveying channel (27) is fixed on the inner side of the shell (10), an upper rod and a lower rod (67) are fixed on the lower side of each limiting strip (46), a gripping rod (51) is arranged on the inner side of each upper rod and the lower rod (67) in a sliding manner, an upper motor and a lower motor (52) are fixed on each gripping rod (51), a lower shaft (53) is arranged at the output end of each upper motor and the lower motor (52), a lower chain wheel (58) is fixed at the tail end of each lower shaft (53), an upper shaft (56) is arranged on each gripping rod (51), an upper chain wheel (55) is fixed at the outer end of each upper shaft (56), and a movable wheel (57) is fixed at the inner end of each upper shaft (56), the moving wheels (57) are meshed with the upper and lower rods (67), and a grasping claw (66) is fixed at the lower end of each moving wheel (57).

4. The system of claim 3, wherein the sludge dewatering and drying system for recycling waste gas comprises: mud airing device is including fixing outer track (19) at casing (10) middle part, casing (10) middle part is fixed with interior track (20), casing (10) bottom is equipped with a plurality of heaters (12), casing (10) upside is fixed with exhaust pipe (21), exhaust pipe (21) end is fixed with air collecting pump (26), be equipped with a plurality of air collecting ports (22) on exhaust pipe (21), interior track (20) with outer track (19) middle part slides and is equipped with a plurality of mud and props the net device, and mud props the net device and is used for the increase of mud surface area.

5. The system of claim 4, wherein the sludge dewatering and drying system comprises: the sludge net supporting device comprises an outer rail (19) and a rail block (23) on the upper side of an inner rail (20), a moving device (24) is fixed on the upper side of the rail block (23), a slave rotating gear (44) is arranged on the lower side of the rail block (23), a connecting rod (18) is fixed on the lower side of the slave rotating gear (44), a rotating motor (41) is fixed on the connecting rod (18), a rotating shaft (42) is arranged at the output end of the rotating motor (41), a main rotating gear (43) is fixed at the tail end of the rotating shaft (42), the main rotating gear (43) is meshed with the slave rotating gear (44), a hydraulic cylinder (59) is fixed on the lower side of the connecting rod (18), a hydraulic rod (60) is arranged in the hydraulic cylinder (59) in a sliding mode, a connecting block (61) is fixed at the lower end of the hydraulic rod (60), and supporting rods (63) are arranged on two sides of the connecting block (61), connecting nails (62) are arranged inside the support rods (63) and the connecting blocks (61), a fixing nail (64) is fixed at the tail end of each support rod (63), a sliding tube (65) is arranged between each support rod (63) and each fixing nail (64), a diastole moving rod (17) is fixed at the inner side of the connecting rod (18), each sliding tube (65) is sleeved on the diastole moving rod (17), a net fixing block rod (37) is fixed at the lower side of each sliding tube (65), a net fixing block (35) is fixed at the tail end of each net fixing block rod (37), an inner support rod (36) is arranged at one side of each net fixing block rod (37), an outer support rod (39) is arranged at the other side of each net fixing block rod (37), a net fixing block (35) is arranged at the tail end of each outer support rod (39), and a net fixing block (35) is arranged at the tail end of each inner support rod (36), the middle parts of the inner supporting rods (36) and the outer supporting rods (39) on the same side are provided with a middle nail (40), two ends of each inner supporting rod (36) and the middle of the net fixing block (35) are provided with an end nail (38), two ends of each outer supporting rod (39) and the middle of the net fixing block (35) are provided with an end nail (38), the total number of the middle nails (40), sixteen end nails (38), four outer supporting rods (39), four inner supporting rods (36), four net fixing blocks (35) is totally four, and a relaxation net (16) is fixed in the middle of the four net fixing blocks (35) on the same side.

6. The system of claim 5, wherein the sludge dewatering and drying system comprises: the sludge sweeping device comprises a fixed block (29) fixed at the front part of the inner side of the shell (10), a mud sweeping rod (15) is arranged between the inside of the fixed block (29) and the shell (10) in a sliding way, a plate turnover device (14) is fixed at the tail end of the mud sweeping rod (15), a mud sweeping plate (13) is arranged below the plate turnover device (14), a mud sweeping motor (32) is fixed on the shell (10), a worm shaft (31) is arranged at the output end of the mud sweeping motor (32), be fixed with two worms (30) on worm axle (31), use bearing symmetry installation two on casing (10) to sweep mud axle (34), every sweep mud axle (34) lower extreme and be fixed with one and sweep mud wheel (33), every sweep mud axle (34) upper end and be fixed with a worm wheel (28), every worm (30) and every worm wheel (28) meshing, two sweep mud wheel (33) inboard clamp and tightly sweep mud pole (15).