A sludge dewaterer and method of use

Abstract

The present application relates to sludge treatment equipment technical field, disclose a kind of sludge dewatering machine and use method, the sludge dewatering machine includes rack, the lower position of both sides of the rack is equipped with backing plate, motor one and motor two are respectively equipped on the backing plate, one end of the motor one is connected with main pulley one, one end of the motor two is connected with main pulley two;Dehydrator body is equipped on the rack, bearing seat one is equipped on both sides of the dehydrator body, bearing seat one is respectively inserted with shaft one and shaft two, bearing seat two is equipped on the side of shaft one away from the dehydrator body, the bottom of bearing seat two is fixed on the rack, secondary pulley one is sleeved on the shaft one between bearing seat two and bearing seat one, and the main pulley one is connected with the main pulley one by belt one. Advantageous effect: keep the stress balance of internal stirring, improve the sludge dewatering effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sludge treatment equipment, in particular to a sludge dewatering machine and a use method thereof. BACKGROUND

[0002] With the development of social economy and the acceleration of urbanization process, the quantity of sludge produced by urban sewage treatment plants and accompanying sludge is rapidly increasing. According to relevant materials, the sludge produced by sewage treatment plants in China reached 300 million tons in 2010. Since the sludge must be subjected to biochemical and flocculation treatment during dewatering, and the sludge after dewatering contains a large amount of cell water and attached water, at present, almost all existing equipment and technology of sewage treatment plants can only reduce the moisture content of sludge to about 80%, and if the moisture content of sludge is to be reduced to less than 50% for incineration, a very high cost will be incurred, therefore, almost all sewage treatment plants in China can only mainly use landfill and stacking for sludge, thereby causing serious environmental pollution problems.

[0003] In the field, the sludge treatment equipment usually comprises a sludge thickening device and a dewatering machine which are independently arranged, and when the sludge is treated, the sludge thickening device is used to thicken the relatively dilute sludge, and the sludge with reduced water content after thickening is subjected to dewatering in the dewatering machine.

[0004] However, in the use process, since the length of the extrusion area is limited, the extrusion force required to be provided will be increased, the requirement for the equipment will be higher, and when the sludge is extruded, the sludge and sewage will form small groups which are relatively stable, thereby reducing the compression dewatering effect. SUMMARY

[0005] The technical task of the present application is to solve the above problems by providing a sludge dewatering machine and a use method thereof.

[0006] The technical scheme of the present application is as follows:

[0007] According to one aspect of the present application, a sludge dewatering machine is provided.

[0008] The sludge dewatering machine comprises a frame, a base plate is arranged at the lower position of both sides of the frame, a motor one and a motor two are respectively arranged on the base plate, one end of the motor one is connected with a main pulley one, and one end of the motor two is connected with a main pulley two; a dewatering machine body is arranged on the frame, bearing seats one are arranged on both sides of the dewatering machine body on the frame, a rotating shaft one and a rotating shaft two are respectively arranged on the bearing seats one, a bearing seat two is arranged on the side of the rotating shaft one away from the dewatering machine body, the bottom of the bearing seat two is fixed on the frame, a secondary pulley one is sleeved on the rotating shaft one between the bearing seat two and the bearing seat one, the secondary pulley one is connected with the main pulley one through a belt one, an axle is arranged on the side of the rotating shaft two away from the dewatering machine body, a speed reducer is arranged on the axle, a secondary pulley two is arranged on the side of the axle away from the rotating shaft two, the secondary pulley two is connected with the main pulley two through a belt two; a clear liquid outlet and a sludge outlet are respectively arranged on the bottom of both sides of the dewatering machine body, an inner cylinder is arranged in the dewatering machine body, a liquid outlet is arranged on the side of the inner cylinder close to the rotating shaft two, a sludge outlet is arranged on the bottom of the inner cylinder corresponding to the side of the sludge outlet, an inner bin is arranged in the inner cylinder, a feeding channel is arranged on the top of the inner bin close to the side of the rotating shaft one, a distribution port is arranged on the bottom of the inner bin close to the central position, the feeding channel penetrates through the inner cylinder and the dewatering machine body, an expansion mechanism and a driving mechanism are respectively arranged on both sides of the inner bin, the rotating shaft one is connected with the driving mechanism, and the rotating shaft two is connected with the expansion mechanism; the driving mechanism comprises a rotating ring, a plurality of gear teeth are arranged on the side edge of the rotating ring away from the rotating shaft one, a gear meshing with the gear teeth is arranged on the side of the rotating shaft one away from the bearing seat two, and a spiral pusher is arranged at the center of the side of the gear away from the rotating shaft one.

[0009] Preferably, a half-moon plate is arranged on the side edge of the inner bin close to the rotating shaft one, the feeding channel is located above the gear teeth, and the spiral pusher transversely penetrates the expansion mechanism.

[0010] Preferably, the expansion mechanism comprises an inner disc, the inner disc is fixed on the side of the inner bin close to the rotating shaft two, a plurality of side grooves are arranged on the periphery of the inner disc, a matching sliding block is arranged in each side groove, an arc-shaped filter screen is arranged on the side of each sliding block away from the rotating shaft two, and the arc-shaped filter screens are combined to form a cylindrical structure.

[0011] Preferably, the spiral pusher transversely penetrates the arc-shaped filter screen, and the arc-shaped filter screen is fixedly connected with the side edge of the sliding block through a fixing piece.

[0012] As preferred, the two rotating shafts penetrate the dewatering machine body, the inner cylinder and the inner bin, and the two ends of the rotating shafts are provided with rotating blocks, and the rotating blocks are provided with a plurality of bent rods away from the side edges of the inner disc.

[0013] As preferred, the center of the outer side edge of the sliding block arranged on both sides is provided with a second supporting block, and the second supporting block is respectively provided with a first connecting shaft and a second connecting shaft, and the two ends of the first connecting shaft are provided with a first supporting block, and the first supporting block is provided with a mounting plate corresponding to one side of the second connecting shaft, and the mounting plate is provided with a cylinder away from the first supporting block, and the cylinder is provided with a matched piston rod, and the piston rod penetrates the cylinder, and the piston rod is sleeved on the two sides of the second connecting shaft away from the cylinder.

[0014] As preferred, the mounting plate is fixed in the inner cylinder, and the cylinder is provided with a mounting block away from the mounting plate, and the mounting block is mounted in the corresponding position in the inner cylinder; and a certain gap is left between the inner disc and the inner wall of the inner bin.

[0015] According to another aspect of the present application, a use method of the sludge dewatering machine is provided.

[0016] The use method of the sludge dewatering machine comprises the following steps:

[0017] The sludge enters the inner bin through the feeding channel;

[0018] The driving motor one operates, and the motor one drives the main pulley one to rotate, and the main pulley one drives the secondary pulley one through the belt one, and then drives the gear to rotate;

[0019] After the gear rotates, the side gear teeth rotate, so that the entering sludge rotates to realize stirring through the meshing between the gear and the gear teeth, and the internal penetrating sludge flows and collides with each other during the stirring process, so as to promote the sludge to be conveyed and extruded;

[0020] During the conveying and extruding, the sludge is pushed forward again by the screw pusher;

[0021] During the pushing and extruding, the rotating movement generated will cause the sludge to collide with the surrounding arc-shaped filter screen;

[0022] After the collision, the rebound force is generated;

[0023] Then the driving motor two operates, and the motor two drives the expansion mechanism to operate;

[0024] During the operation of the expansion mechanism, the arc-shaped filter screen will realize expansion movement ceaselessly, so as to make the inner diameter of the pipeline-shaped structure formed by the arc-shaped filter screen change ceaselessly.

[0025] When the inner diameter of the inner pipeline changes, the internal flow and the impact sludge flow path will change, and compression or expansion operation is generated.

[0026] The internal balanced stirring stress will be dispersed and balanced.

[0027] At the same time, the formed sludge group will be dispersed;

[0028] After the extrusion impact, the sewage in the sludge will be separated out;

[0029] Finally, sludge dewatering treatment is realized.

[0030] Compared with the prior art, the advantages and positive effects of the present application are that:

[0031] 1. The inner cylinder and the inner bin are arranged in the dewatering machine body, and the multi-layer cavity structure is adopted, so that when the sludge is dewatered, the sludge can be prevented from being directly thrown out, and the driving mechanism is arranged below the feeding channel, so that the entering sludge is extruded and impacted during the operation of the driving mechanism, and is conveyed forward along with the screw pusher at the same time, so that the sludge is conveyed and extruded at the same time, and the inner wall and the surrounding arc-shaped filter screen are impacted ceaselessly during the extrusion, a rebound force is formed, and after the expansion movement of the arc-shaped filter screen, the internal space changes, so that the stress balance of the internal stirring is maintained, and the sludge dewatering effect is improved.

[0032] 2. When the arc-shaped filter screen realizes expansion movement, the internal space will change, the screw pusher crossing the space is arranged on one side, so that the spaces divided in the inside are not equal, and when the arc-shaped filter screen expands, the extrusion force of different spaces is formed between the arc-shaped filter screen and the internal screw pusher, and then the sludge dewatering effect is improved.

[0033] 3. Compared with the sludge dewatering in the prior art, the sludge dewatering effect is better, and the loss of extrusion power is not caused. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 is a general structure schematic view according to the embodiment of the present application.

[0036] Figure 2 is a schematic diagram of a driving mechanism structure according to an embodiment of the present application;

[0037] Figure 3 is a schematic diagram of a gear connection structure according to an embodiment of the present application;

[0038] Figure 4 is a schematic diagram of a rotating block connection structure according to an embodiment of the present application;

[0039] Figure 5 is a schematic diagram of an inner disc structure according to an embodiment of the present application;

[0040] Figure 6 is a schematic diagram of an arc-shaped filter screen structure according to an embodiment of the present application.

[0041] In the drawings:

[0042] 1, frame; 2, base plate; 3, motor one; 4, motor two; 5, main pulley one; 6, main pulley two; 7, dewatering machine body; 8, bearing seat one; 9, rotating shaft one; 10, rotating shaft two; 11, bearing seat two; 12, secondary pulley one; 13, belt one; 14, speed reducer; 15, secondary pulley two; 16, belt two; 17, clear liquid outlet; 18, sludge outlet; 19, inner cylinder; 20, liquid outlet; 21, sludge outlet; 22, inner bin; 23, feeding channel; 24, distribution port; 25, expansion mechanism; 26, rotating ring; 27, gear tooth; 28, gear; 29, screw propeller; 30, half-moon shaped plate; 31, inner disc; 32, side groove; 33, sliding block; 34, arc-shaped filter screen; 35, rotating block; 36, bent rod; 37, supporting block two; 38, connecting shaft one; 39, connecting shaft two; 40, supporting block one; 41, mounting plate; 42, cylinder body; 43, piston rod. DETAILED DESCRIPTION

[0043] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, the following will further describe the present application with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0044] The present application will be further described below with reference to the drawings and specific embodiments.

[0045] Embodiment One

[0046] As shown in the Figures 1-6

[0047] ​The present application provides a kind of sludge dewatering machine, including rack 1, the lower part of both sides of the rack 1 is equipped with backing plate 2, motor one 3 and motor two 4 are respectively arranged on the backing plate 2, one end of the motor one 3 is connected with main pulley one 5, one end of the motor two 4 is connected with main pulley two 6;The rack 1 is equipped with dewatering machine body 7, both sides of the dewatering machine body 7 are located on the both sides of the rack 1 and are equipped with bearing seat one 8, bearing seat one 8 is respectively inserted with shaft one 9 and shaft two 10, the side of the shaft one 9 away from the dewatering machine body 7 is equipped with bearing seat two 11, the bottom of the bearing seat two 11 is fixed on the rack 1, the bearing seat two 11 and the bearing seat one 8 are located on the shaft one 9 and are equipped with secondary pulley one 12, the secondary pulley one 12 is connected with the main pulley one 5 by belt one 13, the side of the shaft two 10 away from the dewatering machine body 7 is equipped with shaft, the shaft is equipped with speed reducer 14, the side of the shaft away from the shaft two 10 is equipped with secondary pulley two 15, the secondary pulley two 15 is connected with the main pulley two 6 by belt two 16;The bottom of the dewatering machine body 7 is respectively equipped with clear liquid outlet 17 and sludge outlet 18, the inside of the dewatering machine body 7 is equipped with inner cylinder 19, the side of the inner cylinder 19 close to the shaft two 10 is equipped with liquid outlet 20, the bottom of the inner cylinder 19 is equipped with sludge outlet 21 on the side corresponding to the sludge outlet 18, the inside of the inner cylinder 19 is equipped with inner bin 22, the top of the inner bin 22 is equipped with feed channel 23 on the side close to the shaft one 9, the bottom of the inner bin 22 is equipped with distribution port 24 close to the center position, the feed channel 23 penetrates the inner cylinder 19 and the dewatering machine body 7, the inside of the inner bin 22 is respectively equipped with expansion mechanism 25 and drive mechanism on both sides, the shaft one 9 is connected with the drive mechanism, the shaft two 10 is connected with the expansion mechanism 25;The drive mechanism includes rotating ring 26, the side edge of the rotating ring 26 away from the shaft one 9 is equipped with a plurality of gear teeth 27, the side of the shaft one 9 away from the bearing seat two 11 is equipped with gear 28 meshing with the gear teeth 27, the center of the side of the gear 28 away from the shaft one 9 is equipped with screw pusher 29.

[0048] The inner bin 22 is provided with a half-moon plate 30 on the side close to the rotating shaft 9, the feeding channel 23 is located above the gear teeth 27, the spiral pusher 29 is transversely arranged in the expansion mechanism 25, the expansion mechanism 25 comprises an inner disc 31 fixed in the inner bin 22 close to the rotating shaft 10, the inner disc 31 is provided with a plurality of side grooves 32 on the periphery, each side groove 32 is provided with a sliding block 33 matched therewith, the sliding block 33 is provided with an arc-shaped filter screen 34 away from the rotating shaft 10, the arc-shaped filter screens 34 are combined to form a cylindrical structure, the spiral pusher 29 is transversely arranged in the arc-shaped filter screen 34, the arc-shaped filter screen 34 is fixedly connected with the side of the sliding block 33 through a fixing member, the rotating shaft 10 penetrates through the dewatering machine body 7, the inner cylinder 19 and the inner bin 22, the rotating shaft 10 is provided with a rotating block 35 at the inner end, the rotating block 35 is provided with a plurality of bent rods 36 on the side away from the inner disc 31, the bent rod 36 is movably connected at the inner side of the side of the sliding block 33, the sliding blocks 33 are provided with a support block 37 at the center of the outer side, the support block 37 is provided with a connecting shaft 38 and a connecting shaft 39, the connecting shaft 38 is provided with a support block 40 at both ends, the support block 40 is provided with a mounting plate 41 on the side corresponding to the connecting shaft 39, the mounting plate 41 is provided with a cylinder 42 away from the support block 40, the cylinder 42 is provided with a piston rod 43 matched therewith, the piston rod 43 penetrates through the cylinder 42, the piston rod 43 is sleeved on the connecting shaft 39 on both sides away from the cylinder 42, the mounting plate 41 is fixed in the inner cylinder 19, the cylinder 42 is provided with a mounting block away from the mounting plate 41, and the mounting block is mounted in the inner cylinder 19 at the corresponding position; and a certain space is left between the inner disc 31 and the inner wall of the inner bin 22.

[0049] The spiral pusher 29 transversely arranged in the arc-shaped filter screen 34 is located on the side of the arc-shaped filter screen 34 forming a cylindrical pipe, so that the inner divided space is large on one side and small on the other side, when the spiral pusher 29 rotates, the expansion movement of the surrounding arc-shaped filter screen 34 changes the space, the impact force and the rolling movement force of the sludge are changed, the force received by the sludge stirring is dispersed, and the force is balanced.

[0050] Embodiment two

[0051] A use method of the sludge dewatering machine, comprising the following steps:

[0052] S101: The sludge enters into the inner bin 22 through the feeding channel 23;

[0053] S103: drive motor 3 operation, motor 3 is driven by the main pulley 5 rotation, the main pulley 5 through the belt 13 drive secondary pulley 12 drive, and then to drive gear 28 rotation;

[0054] S105: gear 28 rotation, will drive the side of the gear teeth 27 rotation, so that the incoming sludge will be with the gear 28 and gear teeth 27 between the meshing rotation to achieve stirring, stirring process will bring the internal interpenetration of the sludge flow constantly collide with each other, to promote the sludge conveying extrusion side;

[0055] S107: conveying extrusion, again through the screw pusher 29 forward push;

[0056] S109: push extrusion, the resulting rotational motion, will bring the sludge constantly collide with the surrounding arc filter screen 34;

[0057] S1011: rebound after the impact;

[0058] S1013: then drive motor 2 4 operation, motor 2 4 drive expansion mechanism 25 operation;

[0059] S1015: expansion mechanism 25 operation process, the arc filter screen 34 will constantly achieve expansion movement, to make the arc filter screen 34 formed by the pipe structure inner diameter constantly change;

[0060] S1017: when the internal pipe inner diameter in the change, the internal flow and impact of the sludge flow path will change, resulting in compression or expansion operation;

[0061] S1019: internal balance of the stirring force will be dispersed balance;

[0062] S1021: at the same time, to make the sludge group will be broken up;

[0063] S1013: extrusion impact, sludge internal sewage will be out of;

[0064] S1015: finally realize the sludge dewatering treatment.

[0065] The detailed use method and effect of the embodiment:

[0066] When the sludge enters the inner bin 22 from the feeding channel 23, the driving motor 3 operates, the motor 3 drives the primary pulley 5 to rotate, the primary pulley 5 drives the secondary pulley 12 to rotate through the belt 13, the secondary pulley 12 drives the rotating shaft 9 to rotate after rotating, the rotating shaft 9 drives the gear 28 to rotate, the gear 28 drives the side meshing gear teeth 27 to rotate after rotating, the gear teeth 27 drives the rotating ring 26 to rotate after rotating, at this time, the entering sludge flows into the gear teeth 27 and the gear 28, the gear 28 and the gear teeth 27 rotate to drive the sludge in the inner bin to flow, the sludge is continuously extruded and collides with each other, and then the sludge is continuously transported forward by the spiral pusher 29, and the sludge is continuously rolled and collides with the surrounding arc filter screen 34 during the transportation process, before this, the driving motor 4 operates, the motor 4 drives the primary pulley 6 to rotate, the primary pulley 6 drives the secondary pulley 15 to rotate through the belt 16, and further drives the rotating shaft 10 to rotate, the rotating shaft 10 drives the connected rotating block 35 to rotate, the arc filter screen 34 on the side of the sliding block 33 is continuously expanded after the rotating block 35 rotates, the cylindrical inner diameter of the arc filter screen 34 changes, the sludge in the inner bin is continuously rolled and transported, and the sludge collides with the inner wall of the pipe with the changed inner diameter, the collision force of the sludge colliding with the inner wall of the arc filter screen changes after the arc filter screen expands, so that the liquid in the sludge can be effectively extracted.

[0067] When the sliding block 33 slides, the piston rod 43 and the cylinder 42 connected thereto are driven to produce extension and contraction, the gas outlet hole and the gas inlet hole are arranged on the cylinder 42, the gas generated in the inner bin changes the power of the outer periphery when the positive and negative pressures are generated in the inner bin, and the waterproof air permeable film is arranged at the gas outlet hole and the gas inlet hole.

[0068] The sludge in the inner bin 22 is continuously rolled and extruded, the stirring stress formed in the inner bin is balanced, the liquid in the sludge is extracted, and then the liquid is discharged from the liquid outlet 20, the liquid is discharged from the liquid outlet 20, and then the sludge is discharged from the sludge outlet 21 and the sludge outlet 18. A filter screen is arranged at the liquid outlet 20.

[0069] The above specific embodiments can be easily realized by those skilled in the art in the technical field. However, it should be understood that the present application is not limited to the above specific embodiments. On the basis of the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to realize different technical solutions.

Claims

1. A sludge dewatering machine, characterized in that, Includes frame (1), and pads (2) are provided at the lower positions on both sides of the frame (1). Motor 1 (3) and Motor 2 (4) are respectively provided on the pads (2). One end of motor 1 (3) is connected to main pulley 1 (5), and one end of motor 2 (4) is connected to main pulley 2 (6). The frame (1) is provided with a dewatering machine body (7). On both sides of the dewatering machine body (7) on the frame (1), there are bearing seats (8). A rotating shaft (9) and a rotating shaft (10) are respectively inserted on the bearing seats (8). A bearing seat (11) is provided on the side of the rotating shaft (9) away from the dewatering machine body (7). The bottom of the bearing seat (11) is fixed on the frame (1). A secondary pulley (12) is sleeved on the rotating shaft (9) between the bearing seat (11) and the bearing seat (8). The secondary pulley (12) is connected to the main pulley (5) through the belt (13). A shaft is provided on the side of the rotating shaft (10) away from the dewatering machine body (7). A reducer (14) is provided on the shaft. A secondary pulley (15) is provided on the side of the shaft away from the rotating shaft (10). The secondary pulley (15) is connected to the main pulley (6) through the belt (16). The bottom sides of the dewatering machine body (7) are provided with a clear liquid outlet (17) and a sludge outlet (18). The dewatering machine body (7) is provided with an inner cylinder (19). The inner cylinder (19) is provided with a liquid outlet (20) on the side near the rotating shaft (10). A filter screen is provided at the liquid outlet (20). The bottom of the inner cylinder (19) is provided with a sludge outlet (21) on the side corresponding to the sludge outlet (18). The inner cylinder (19) is provided with an inner chamber (22). The top of the inner chamber (22) is provided with a feeding channel (23) on the side near the rotating shaft (9). The bottom of the inner chamber (22) is provided with a distribution port (24) near the center. The feeding channel (23) runs through the inner cylinder (19) and the dewatering machine body (7). The inner chamber (22) is provided with an expansion mechanism (25) and a drive mechanism on the sides. The rotating shaft (9) is connected to the drive mechanism, and the rotating shaft (10) is connected to the expansion mechanism (25). The drive mechanism includes a rotating ring (26), which has several gear teeth (27) on the side away from the rotating shaft (9). The rotating shaft (9) has a gear (28) that meshes with the gear teeth (27) on the side away from the bearing seat (11). The gear (28) has a spiral pusher (29) at the center of the side away from the rotating shaft (9). The expansion mechanism (25) includes an inner plate (31), which is fixed inside the inner chamber (22) on the side near the rotating shaft (10). The inner plate (31) has several side grooves (32) around its periphery, and each side groove (32) has a matching slider (33). Each slider (33) has an arc-shaped filter (34) on the side away from the rotating shaft (10). The arc-shaped filter (34) are combined to form a cylindrical structure. The rotating shaft (10) passes through the dewatering machine body (7), the inner cylinder (19), and the inner chamber (22). The inner end of the rotating shaft (10) has a rotating block (35). The side of the rotating block (35) away from the inner plate (31) has several bent rods (36). The end of the bent rod (36) away from the rotating block (35) has several bent rods (36). The movable connection is located at the center of the inner side of the slider (33). At the center of the outer side of the slider (33) on both sides, there is a support block (37). The middle part of the support block (37) is respectively connected to the first shaft (38) and the second shaft (39). The two ends of the first shaft (38) are each provided with a support block (40). The side of the support block (40) corresponding to the second shaft (39) is provided with a mounting plate (41). The side of the mounting plate (41) away from the support block (40) is provided with a cylinder (42). The cylinder (42) is provided with a matching piston rod (43). The piston rod (43) passes through the cylinder (42). The side of the piston rod (43) away from the cylinder (42) is respectively sleeved on both sides of the second shaft (39).

2. A sludge dewatering machine according to claim 1, characterized in that, The inner chamber (22) has a crescent-shaped plate (30) on one side near the rotating shaft (9), the feed channel (23) is located above the gear teeth (27), and the spiral pusher (29) runs through the expansion mechanism (25).

3. A sludge dewatering machine according to claim 2, characterized in that, The spiral feeder (29) runs through the arc-shaped filter screen (34), which is fixedly connected to the side of the slider (33) by a fastener.

4. A sludge dewatering machine according to claim 3, characterized in that, The mounting plate (41) is fixed inside the inner cylinder (19). The cylinder body (42) is provided with a mounting block on the side away from the mounting plate (41). The mounting block is installed at the corresponding position inside the inner cylinder (19). A certain gap is left between the inner plate (31) and the inner wall of the inner compartment (22).

5. A method of using a sludge dewatering machine, characterized in that, The sludge dewatering machine for claim 4 comprises the following steps: The sludge enters the inner silo (22) through the feed channel (23); When the drive motor 1 (3) runs, the motor 1 (3) drives the main pulley 1 (5) to rotate. The main pulley 1 (5) drives the secondary pulley 1 (12) through the belt 1 (13), which in turn drives the gear (28) to rotate. After the gear (28) rotates, it will drive the side gear (27) to rotate. In this way, the sludge that enters will be stirred by the meshing rotation between the gear (28) and the gear (27). During the stirring process, the sludge flowing inside will continuously collide with each other, causing the sludge to be transported and squeezed at the same time. During the conveying and extrusion process, the material is pushed forward again by the screw feeder (29); When pushing and squeezing, the resulting rotational motion will cause the sludge to continuously impact the surrounding arc-shaped filter screen (34). The impact generates a rebound force; Then drive motor 2 (4) to run, and motor 2 (4) drives expansion mechanism (25) to run; During the operation of the expansion mechanism (25), the arc-shaped filter (34) will continuously expand, causing the inner diameter of the pipe-like structure formed by the arc-shaped filter (34) to change continuously. When the inner diameter of the internal pipe changes, the flow path of the sludge that flows and impacts inside will change, resulting in compression or expansion. The internally balanced stirring forces will then be dispersed and balanced; At the same time, the sludge clumps formed will be broken up; After being squeezed and impacted, the wastewater inside the sludge will be extracted; Ultimately, sludge dewatering is achieved.

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