Sludge drying machine for water affair sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, in particular to a water affair sewage treatment sludge drying machine which comprises a drying box, a discharging hopper, a feeding hopper, an extrusion mechanism, a flattening mechanism, a sludge turning mechanism and a discharging mechanism, the discharging hopper is fixedly installed on the drying box, the feeding hopper is fixedly installed on the drying box, and the extrusion mechanism is fixedly installed on the drying box; the extrusion mechanism is used for extruding sludge in the drying box, the flattening mechanism is fixedly mounted on the drying box and is used for flattening the sludge in the drying box, and the sludge turning mechanism is rotatably mounted on the extrusion mechanism and is used for turning the sludge in the drying box. According to the water affair sewage treatment sludge drying machine, by arranging the extruding mechanism and the flattening mechanism, sludge can be extruded in a reciprocating mode, the sludge drying efficiency is improved, the flattening mechanism can be driven to act, the heated area and the heated uniformity of the sludge are improved, and therefore the using effect and the working efficiency of the sludge drying machine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and particularly relates to a sludge dryer for water service sewage treatment. Background Art

[0002] Most sewage sources usually come from domestic sewage, industrial sewage and agricultural sewage. In order to protect the quality of the water environment, it is usually necessary to treat the sewage to make it meet the discharge standards, including pretreatment, biological treatment and advanced treatment, etc. At the same time, during the sewage treatment process, a certain amount of sludge will be generated, and the generated sludge usually needs to be dried to reduce the water content of the sludge, so as to facilitate subsequent landfill treatment of the sludge.

[0003] A sludge dryer is a device used to dehydrate and dry sludge. Existing sludge drying equipment includes a hollow paddle dryer and a rotary drum dryer. Among them, the hollow paddle dryer uses steam, hot water or heat transfer oil as the heating medium. The heating medium enters the jacket of the dryer housing and the inner cavity of the paddle shaft, so that the body and the paddle shaft are heated simultaneously, and the sludge is heated and dried by conduction. The sludge contacts the body and the paddle, and the water evaporates. For the rotary drum dryer, the material is fed into the rotating drum through the feeding device and contacts and mixes with the hot air flow entering from the same end. Under the agitation of the lifter, the hot air flow fully contacts the sludge, so that the water in the sludge evaporates.

[0004] Considering that when the existing paddle-type sludge dryer is in use, due to the presence of the paddles, the space inside the machine is limited, resulting in the sludge being easily accumulated in the machine or adhering to the paddles, which easily causes the aggravation of paddle wear and uneven drying of the sludge. During the drying process of the rotary drum dryer, the residence time of the sludge in the drum may vary due to various factors, resulting in uneven moisture content of the dried product. The sludge near the feed inlet and the discharge outlet may have different drying degrees, which will also affect the drying effect of the sludge, and further lead to a reduction in the use effect and working efficiency of the sludge dryer. Summary of the Invention

[0005] The purpose of the present invention is to provide a sludge dryer for water service sewage treatment.

[0006] To achieve this purpose, the present invention adopts the following technical solutions: Provided is a water treatment sewage sludge dryer, which includes a drying box, a discharge hopper, a feed hopper, an extrusion mechanism, a leveling mechanism, a sludge turning mechanism and a blanking mechanism. The discharge hopper is fixedly installed on the drying box, the feed hopper is fixedly installed on the drying box, the extrusion mechanism is fixedly installed on the drying box, and the extrusion mechanism is used to extrude the sludge in the drying box. The leveling mechanism is fixedly installed on the drying box, and the leveling mechanism is used to level the sludge in the drying box. The sludge turning mechanism is rotatably installed on the extrusion mechanism, and the sludge turning mechanism is used to turn the sludge in the drying box. The blanking mechanism is fixedly installed on the drying box, and the blanking mechanism is used to discharge the sludge in the drying box.

[0007] Further, the extrusion mechanism includes a moving plate, a bidirectional telescopic rod, a baffle plate, a sliding rod and an extrusion plate. The bidirectional telescopic rod is rotatably installed on the drying box through a rotating block, the bidirectional telescopic rod is hinged to the moving plate through a hinge column, the sliding rod is fixedly installed on the baffle plate, and the sliding rod is hinged to the bidirectional telescopic rod. A chute is provided on the drying box, and the sliding rod is slidably connected to the chute. The extrusion plate is hingedly installed on the baffle plate.

[0008] Further, the extrusion mechanism further includes a support frame, a hydraulic cylinder and a bottom plate. The support frame is fixedly installed on the drying box, the bottom plate is hingedly installed on the support frame, the hydraulic cylinder is fixedly installed on the drying box, the output shaft of the hydraulic cylinder is fixedly installed on the moving plate through a mounting frame, the extrusion plate is slidably connected to the support frame, the leveling mechanism is fixedly installed on the moving plate, and the moving plate is used to drive the leveling mechanism to move. The sludge turning mechanism is rotatably installed on the extrusion plate, and the extrusion plate is used to drive the sludge turning mechanism to move. The blanking mechanism is fixedly installed on the bottom plate, and the blanking mechanism is used to flip the bottom plate.

[0009] Further, the leveling mechanism includes a box body, a push plate, a rotating shaft, a fixed rod, a U-shaped rod, a sliding sleeve and a rotating mechanism. The box body is fixedly installed on the moving plate, the rotating shaft is rotatably installed in the box body, the fixed rod is fixedly installed on the rotating shaft, and the fixed rod is hinged to the sliding sleeve through a cylindrical block. The sliding sleeve is slidably installed on the U-shaped rod. The U-shaped rod is fixedly installed on the push plate, and the U-shaped rod penetrates through the box body. The rotating mechanism is fixedly installed on the rotating shaft, and the rotating mechanism is used to drive the rotating shaft to rotate.

[0010] Further, the rotating mechanism includes a shell, a first rack, a first gear and a threaded rod. The shell is fixedly installed on the drying box, the first rack is fixedly installed on the shell, the first gear is fixedly installed on the threaded rod, and the first gear meshes with the first rack. A guide groove is provided on the shell, and the threaded rod is slidably connected to the guide groove.

[0011] Further, the rotating mechanism further includes a support block, a second gear, a second rack, and a guide rod. The support block is fixedly installed on the moving plate, the guide rod is fixedly installed on the support block, the second gear is fixedly installed on the rotating shaft, the second rack is slidably installed on the guide rod, and the second rack is threadedly connected to the threaded rod. The threaded rod is rotatably connected to the support block, and the second rack meshes with the second gear.

[0012] Further, the mud turning mechanism includes an impeller and a shovel plate. The impeller is rotatably installed on the extrusion plate through a cylindrical rod, and the shovel plate is fixedly installed on the extrusion plate.

[0013] Further, the mud turning mechanism further includes a third gear and a third rack. A groove and an inclined groove are formed in the support frame, and the groove is communicated with the inclined groove. The third gear is fixedly installed on the cylindrical rod, the third rack is fixedly installed on the groove, and the third rack meshes with the third gear.

[0014] Further, the feeding mechanism includes a mounting plate, a limiting rod, a moving seat, and a connecting plate. The mounting plate is fixedly installed on the bottom plate, the limiting rod is fixedly installed on the mounting plate, and the limiting rod penetrates through the moving seat. The connecting plate is hingedly installed on the moving seat.

[0015] Further, the feeding mechanism further includes a motor and a rotating rod. The motor is fixedly installed on the drying box, and the output shaft of the motor is fixedly connected to the rotating rod. The rotating rod is rotatably installed on the drying box, and the rotating rod is fixedly connected to the connecting plate.

[0016] Advantages of the present invention: For this water treatment sewage sludge dryer, through the provided extrusion mechanism and leveling mechanism, it can reciprocally extrude the sludge, squeeze out the water in the sludge, accelerate the drying efficiency of the sludge, and can drive the leveling mechanism to act, leveling the extruded sludge again, so as to increase the heat receiving area and heat receiving uniformity of the sludge, thereby improving the use effect and working efficiency of the sludge dryer. At the same time, through the provided mud turning mechanism, it can drive the impeller to rotate through the movement effect of the extrusion plate, turn up and disperse the flat sludge, avoid the phenomenon of sludge caking, further improve the mixing uniformity and drying uniformity of the sludge. In addition, through the provided feeding mechanism, it can achieve the effect of automatically and quickly discharging the dried sludge, thereby further improving the working efficiency of the sludge dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is an internal structural schematic diagram of the drying box of the present invention; Figure 3Schematic front view structure diagram of the extrusion mechanism of the present invention; Figure 4 Schematic cross-sectional structure diagram of the drying oven of the present invention; Figure 5 Schematic front view structure diagram of the moving plate of the present invention; Figure 6 Schematic cross-sectional structure diagram of the box body of the present invention; Figure 7 Schematic front view structure diagram of the flattening mechanism of the present invention; Figure 8 Schematic internal structure diagram of the housing of the present invention; Figure 9 Schematic disassembled structure diagram of the extrusion plate and the mud-turning mechanism of the present invention; Figure 10 Schematic cross-sectional structure diagram of the support frame of the present invention; Figure 11 For the present invention Figure 10 Enlarged structure diagram of part A; Figure 12 Schematic front view structure diagram of the blanking mechanism of the present invention.

[0019] In the figure: 1. Drying oven; 2. Discharge hopper; 3. Feed hopper; 6. Extrusion mechanism; 61. Support frame; 62. Hydraulic cylinder; 63. Moving plate; 64. Mounting frame; 65. Bi-directional telescopic rod; 66. Baffle; 67. Slide bar; 68. Extrusion plate; 69. Hinge column; 610. Chute; 611. Bottom plate; 612. Rotating block; 7. Flattening mechanism; 71. Box body; 72. Pushing plate; 73. Rotating shaft; 74. Fixed rod; 75. U-shaped rod; 76. Slide sleeve; 77. Cylindrical block; 78. Rotating mechanism; 781. Housing; 782. Rack one; 783. Guide groove; 784. Gear one; 785. Threaded rod; 786. Support block; 787. Gear two; 788. Rack two; 789. Guide rod; 8. Mud-turning mechanism; 81. Impeller; 82. Cylindrical rod; 83. Gear three; 84. Shoveling plate; 85. Groove; 86. Inclined groove; 87. Rack three; 9. Blanking mechanism; 91. Motor; 92. Mounting plate; 93. Limiting rod; 94. Moving seat; 95. Connecting plate; 96. Rotating rod. Detailed implementation manners

[0020] The technical solution of the present invention will be further described below with reference to the drawings and through specific implementation manners.

[0021] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual products.

[0022] Refer toFigure 1 and Figure 3 , a water treatment sewage sludge dryer shown, comprising a drying box 1, a discharge hopper 2, a feed hopper 3, an extrusion mechanism 6, a flattening mechanism 7, a sludge turning mechanism 8 and a feeding mechanism 9. The discharge hopper 2 is fixedly installed on the drying box 1, and the discharge hopper 2 is used to discharge the sludge in the drying box 1. The feed hopper 3 is fixedly installed on the drying box 1, and the feed hopper 3 is used to add sludge into the drying box 1. The extrusion mechanism 6 is fixedly installed on the drying box 1, and the extrusion mechanism 6 is used to extrude the sludge in the drying box 1, so as to squeeze out the water in the sludge and accelerate the drying efficiency of the sludge. The flattening mechanism 7 is fixedly installed on the drying box 1, and the flattening mechanism 7 is used to flatten the sludge in the drying box 1, so as to increase the heating area and heating uniformity of the sludge. The sludge turning mechanism 8 is rotatably installed on the extrusion mechanism 6, and the sludge turning mechanism 8 is used to turn the sludge in the drying box 1, so as to break up the agglomerated sludge and improve the mixing uniformity of the sludge, thereby improving the drying uniformity of the sludge. The feeding mechanism 9 is fixedly installed on the drying box 1, and the feeding mechanism 9 is used to feed the sludge in the drying box 1, so that the dried sludge in the drying box 1 can be quickly discharged from the drying box 1, improving the working efficiency of the sludge dryer.

[0023] Referring to Figures 2 to 4 , the extrusion mechanism 6 includes a moving plate 63, a bidirectional telescopic rod 65, a baffle 66, a sliding rod 67 and an extrusion plate 68. The bidirectional telescopic rod 65 is rotatably installed on the drying box 1 through a rotating block 612. The rotating block 612 is arranged in the middle of the bidirectional telescopic rod 65. The two ends of the bidirectional telescopic rod 65 can extend or contract towards both sides. The bidirectional telescopic rod 65 is hinged to the moving plate 63 through a hinge column 69. Through the moving effect of the moving plate 63, the hinge column 69 can drive the bidirectional telescopic rod 65 to rotate. The sliding rod 67 is fixedly installed on the baffle 66, and the sliding rod 67 is hinged to the bidirectional telescopic rod 65. Through the rotating effect of the bidirectional telescopic rod 65, the sliding rod 67 can be driven to move, so as to drive the baffle 66 to move. A chute 610 is opened on the drying box 1, and the sliding rod 67 is slidably connected to the chute 610. The chute 610 can play a guiding role for the sliding rod 67 to prevent the sliding rod 67 from deviating during movement. The extrusion plate 68 is hingedly installed on the baffle 66. Through the moving effect of the baffle 66, the extrusion plate 68 can be driven to move.

[0024] Referring to Figures 2 to 4, the extrusion mechanism 6 further includes a support frame 61, a hydraulic cylinder 62 and a bottom plate 611. The support frame 61 is fixedly installed on the drying box 1, and the bottom plate 611 is hingedly installed on the support frame 61. The support frame 61 plays a supporting role for the bottom plate 611, and the bottom plate 611 plays a bearing role for the sludge. The hydraulic cylinder 62 is fixedly installed on the drying box 1, and the output shaft of the hydraulic cylinder 62 is fixedly installed on the moving plate 63 through the mounting frame 64. By starting the hydraulic cylinder 62, the mounting frame 64 can be driven to move, so that the moving plate 63 moves. The extrusion plate 68 is slidably connected to the support frame 61. Through the sliding effect of the extrusion plate 68, the sludge can be extruded. The leveling mechanism 7 is fixedly installed on the moving plate 63, and the moving plate 63 is used to drive the leveling mechanism 7 to move, so that the leveling mechanism 7 and the extrusion plate 68 can reciprocate alternately to level and extrude the sludge. The mud-turning mechanism 8 is rotatably installed on the extrusion plate 68, and the extrusion plate 68 is used to drive the mud-turning mechanism 8 to move. The feeding mechanism 9 is fixedly installed on the bottom plate 611, and the feeding mechanism 9 is used to turn over the bottom plate 611.

[0025] Referring to Figures 5 to 7 , the leveling mechanism 7 includes a box body 71, a push plate 72, a rotating shaft 73, a fixed rod 74, a U-shaped rod 75, a sliding sleeve 76 and a rotating mechanism 78. The box body 71 is fixedly installed on the moving plate 63. Through the moving effect of the moving plate 63, the box body 71 can be driven to move. The rotating shaft 73 is rotatably installed in the box body 71. Through the rotating effect of the rotating shaft 73, the fixed rod 74 can be driven to rotate. The fixed rod 74 is fixedly installed on the rotating shaft 73, and the fixed rod 74 is hinged to the sliding sleeve 76 through a cylindrical block 77. Through the rotating effect of the fixed rod 74, the cylindrical block 77 can drive the sliding sleeve 76 to move. The sliding sleeve 76 is slidably installed on the U-shaped rod 75. Through the sliding effect of the sliding sleeve 76, the U-shaped rod 75 can be driven to move. The U-shaped rod 75 is fixedly installed on the push plate 72, and the U-shaped rod 75 penetrates the box body 71. Through the moving effect of the U-shaped rod 75, the push plate 72 can be driven to move. The rotating mechanism 78 is fixedly installed on the rotating shaft 73, and the rotating mechanism 78 is used to drive the rotating shaft 73 to rotate.

[0026] Referring to Figure 8, the rotating mechanism 78 includes a housing 781, a first rack 782, a first gear 784, and a threaded rod 785. The housing 781 is fixedly installed on the drying oven 1. Through the fixing effect of the housing 781, the housing 781 is prevented from falling off. The first rack 782 is fixedly installed on the housing 781. The first gear 784 is fixedly installed on the threaded rod 785, and the first gear 784 meshes with the first rack 782. Through the rotating effect of the first gear 784, the threaded rod 785 can be driven to rotate. A guide groove 783 is formed in the housing 781, and the threaded rod 785 is slidably connected to the guide groove 783. Through the sliding effect of the threaded rod 785, the first gear 784 can be driven to move. Since the first gear 784 meshes with the first rack 782, the first gear 784 rotates when it moves.

[0027] Refer to Figure 5 and Figure 8 , the rotating mechanism 78 further includes a support block 786, a second gear 787, a second rack 788, and a guide rod 789. The support block 786 is fixedly installed on the moving plate 63. The support block 786 is used to support the guide rod 789 and the threaded rod 785. The guide rod 789 is fixedly installed on the support block 786. The guide rod 789 is used to guide the second rack 788. The second gear 787 is fixedly installed on the rotating shaft 73. Through the rotating effect of the second gear 787, the rotating shaft 73 can be driven to rotate. The second rack 788 is slidably installed on the guide rod 789, and the second rack 788 is threadedly connected to the threaded rod 785. Through the moving effect of the second rack 788, the second gear 787 can be driven to rotate. The threaded rod 785 is rotatably connected to the support block 786. Through the rotating effect of the threaded rod 785, the second rack 788 can be driven to move. The second rack 788 meshes with the second gear 787.

[0028] Refer to Figures 9 to 11, the mud-turning mechanism 8 includes an impeller 81 and a shovel plate 84. The impeller 81 is rotatably mounted on the extrusion plate 68 through a cylindrical rod 82. Through the rotation effect of the cylindrical rod 82, the impeller 81 can be driven to rotate, so as to turn and disperse the sludge on the bottom plate 611. The shovel plate 84 is fixedly mounted on the extrusion plate 68. Through the provided shovel plate 84, the sludge adhered to the bottom plate 611 can be shoveled up. The mud-turning mechanism 8 further includes a third gear 83 and a third rack 87. A groove 85 and an inclined groove 86 are formed on the support frame 61, and the groove 85 is communicated with the inclined groove 86. When the sludge enters the groove 85, it will fall out of the groove 85 through the inclined groove 86 to avoid affecting the meshing effect between the third gear 83 and the third rack 87. The third gear 83 is fixedly mounted on the cylindrical rod 82. Through the rotation effect of the third gear 83, the cylindrical rod 82 can be driven to rotate. The third rack 87 is fixedly mounted on the groove 85, and the third rack 87 meshes with the third gear 83. Through the movement effect of the extrusion plate 68, the cylindrical rod 82 can be driven to move, causing the third gear 83 to move, thereby generating a rotation effect.

[0029] Refer to Figure 2 and Figure 12 , the blanking mechanism 9 includes a mounting plate 92, a limiting rod 93, a moving seat 94 and a connecting plate 95. The mounting plate 92 is fixedly mounted on the bottom plate 611, and the mounting plate 92 plays a role in supporting and fixing the limiting rod 93. The limiting rod 93 is fixedly mounted on the mounting plate 92, and the limiting rod 93 penetrates through the moving seat 94. The limiting rod 93 plays a guiding role for the moving seat 94 to prevent the moving seat 94 from shifting during movement. The connecting plate 95 is hingedly mounted on the moving seat 94. Through the rotation effect of the connecting plate 95, the moving seat 94 can be driven to slide, and then the bottom plate 611 can be driven to turn and tilt, facilitating blanking. The blanking mechanism 9 further includes a motor 91 and a rotating rod 96. The motor 91 is fixedly mounted on the drying box 1, and the output shaft of the motor 91 is fixedly connected to the rotating rod 96. By starting the motor 91, the rotating rod 96 can be driven to rotate. The rotating rod 96 is rotatably mounted on the drying box 1, and the rotating rod 96 is fixedly connected to the connecting plate 95. Through the rotation effect of the rotating rod 96, the connecting plate 95 can be driven to rotate.

[0030] The water treatment sewage sludge dryer, through the arranged extrusion mechanism and flattening mechanism, can reciprocally extrude the sludge, squeeze out the water in the sludge, accelerate the drying efficiency of the sludge, and can drive the flattening mechanism to act, flatten the extruded sludge again, so as to improve the heat receiving area and heat receiving uniformity of the sludge, thereby improving the use effect and working efficiency of the sludge dryer. At the same time, through the arranged mud turning mechanism, the rotation of the impeller can be driven by the moving effect of the extrusion plate, turning up and dispersing the flattened sludge, avoiding the phenomenon of sludge caking, and further improving the mixing uniformity and drying uniformity of the sludge. In addition, through the arranged blanking mechanism, the effect of automatically and quickly blanking the dried sludge can be realized, thereby further improving the working efficiency of the sludge dryer.

[0031] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. A sludge dryer for water and sewage treatment, characterized in that: The invention comprises a drying box (1), a discharge hopper (2), a feed hopper (3), an extrusion mechanism (6), a flattening mechanism (7), a mud turning mechanism (8) and a discharge mechanism (9), wherein the discharge hopper (2) is fixedly mounted on the drying box (1), the feed hopper (3) is fixedly mounted on the drying box (1), the extrusion mechanism (6) is fixedly mounted on the drying box (1), the extrusion mechanism (6) is used to extrude the sludge in the drying box (1), the flattening mechanism (7) is fixedly mounted on the drying box (1), the flattening mechanism (7) is used to flatten the sludge in the drying box (1), the mud turning mechanism (8) is rotatably mounted on the extrusion mechanism (6), the mud turning mechanism (8) is used to turn the sludge in the drying box (1), and the discharge mechanism (9) is fixedly mounted on the drying box (1), and the discharge mechanism (9) is used to discharge the sludge in the drying box (1).

2. A water sewage treatment sludge dryer according to claim 1, characterized in that: The extrusion mechanism (6) comprises a movable plate (63), a bidirectional telescopic rod (65), a baffle (66), a sliding rod (67) and an extrusion plate (68); the bidirectional telescopic rod (65) is rotatably mounted on the drying box (1) via a rotating block (612); the bidirectional telescopic rod (65) is hingedly connected to the movable plate (63) via a hinge column (69); the sliding rod (67) is fixedly mounted on the baffle (66), and the sliding rod (67) is hingedly connected to the bidirectional telescopic rod (65); a sliding groove (610) is provided on the drying box (1); the sliding rod (67) is slidably connected to the sliding groove (610); and the extrusion plate (68) is hingedly mounted on the baffle (66).

3. A water sewage treatment sludge dryer according to claim 2, characterized in that: The extrusion mechanism (6) further comprises a support frame (61), a hydraulic cylinder (62) and a bottom plate (611); the support frame (61) is fixedly mounted on the drying box (1); the bottom plate (611) is hingedly mounted on the support frame (61); the hydraulic cylinder (62) is fixedly mounted on the drying box (1); the output shaft of the hydraulic cylinder (62) is fixedly mounted on the movable plate (63) via a mounting frame (64); the extrusion plate (68) is slidably connected to the support frame (61); the flattening mechanism (7) is fixedly mounted on the movable plate (63); the movable plate (63) is used to drive the flattening mechanism (7) to move; the mud turning mechanism (8) is rotatably mounted on the extrusion plate (68); the extrusion plate (68) is used to drive the mud turning mechanism (8) to move; the unloading mechanism (9) is fixedly mounted on the bottom plate (611); the unloading mechanism (9) is used to flip the bottom plate (611).

4. A water sewage treatment sludge dryer according to claim 3, characterized in that: The flattening mechanism (7) comprises a box body (71), a push plate (72), a rotating shaft (73), a fixed rod (74), a U-shaped rod (75), a sliding sleeve (76) and a rotating mechanism (78); the box body (71) is fixedly mounted on the movable plate (63); the rotating shaft (73) is rotatably mounted on the box body (71); the fixed rod (74) is fixedly mounted on the rotating shaft (73); the fixed rod (74) is hinged to the sliding sleeve (76) through a cylindrical block (77); the sliding sleeve (76) is slidably mounted on the U-shaped rod (75); the U-shaped rod (75) is fixedly mounted on the push plate (72); and the U-shaped rod (75) passes through the box body (71); the rotating mechanism (78) is fixedly mounted on the rotating shaft (73); and the rotating mechanism (78) is used to drive the rotating shaft (73) to rotate.

5. A water sewage treatment sludge dryer according to claim 4, characterized in that: The rotating mechanism (78) comprises a housing (781), a rack one (782), a gear one (784) and a threaded rod (785); the housing (781) is fixedly mounted on the drying box (1); the rack one (782) is fixedly mounted on the housing (781); the gear one (784) is fixedly mounted on the threaded rod (785); the gear one (784) is meshed with the rack one (782); a guide groove (783) is provided on the housing (781); and the threaded rod (785) is slidably connected to the guide groove (783).

6. A water sewage treatment sludge dryer according to claim 5, characterized in that: The rotating mechanism (78) further comprises a support block (786), a second gear (787), a second rack (788) and a guide rod (789), wherein the support block (786) is fixedly mounted on the movable plate (63), the guide rod (789) is fixedly mounted on the support block (786), the second gear (787) is fixedly mounted on the rotating shaft (73), the second rack (788) is slidably mounted on the guide rod (789), the second rack (788) is threadedly connected to the threaded rod (785), the threaded rod (785) is rotationally connected to the support block (786), and the second rack (788) is meshed with the second gear (787).

7. A water sewage treatment sludge dryer according to claim 3, characterized in that: The mud turning mechanism (8) comprises an impeller (81) and a shovel plate (84); the impeller (81) is rotatably mounted on the extrusion plate (68) via a cylindrical rod (82); and the shovel plate (84) is fixedly mounted on the extrusion plate (68).

8. The water sewage treatment sludge dryer according to claim 3, characterized in that: The mud turning mechanism (8) further comprises a gear three (83) and a rack three (87); a groove (85) and an inclined groove (86) are provided on the support frame (61); the groove (85) is connected to the inclined groove (86); the gear three (83) is fixedly mounted on the cylindrical rod (82); the rack three (87) is fixedly mounted on the groove (85); and the rack three (87) is meshed with the gear three (83).

9. The water sewage treatment sludge dryer according to claim 3, characterized in that: The unloading mechanism (9) comprises a mounting plate (92), a limiting rod (93), a movable seat (94) and a connecting plate (95); the mounting plate (92) is fixedly mounted on the bottom plate (611); the limiting rod (93) is fixedly mounted on the mounting plate (92), and the limiting rod (93) passes through the movable seat (94); and the connecting plate (95) is hingedly mounted on the movable seat (94).

10. A water sewage treatment sludge dryer according to claim 9, characterized in that: The unloading mechanism (9) further comprises a motor (91) and a rotating rod (96); the motor (91) is fixedly mounted on the drying box (1), and the output shaft of the motor (91) is fixedly connected to the rotating rod (96); the rotating rod (96) is rotatably mounted on the drying box (1), and the rotating rod (96) is fixedly connected to the connecting plate (95).

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