Sludge suspension state circulating drying device

Abstract

The present application belongs to the technical field of sludge drying, in particular to a sludge suspension state circulating drying device, which comprises: a gas circulating heater fixedly installed on one side edge position of the top of a circulating drying table; a filter table swingedly sleeved on the other side edge position of the top of the circulating drying table, which is telescopic with a hydraulic pushing rod, so that one end of the filter table is lifted up, and the filter table is in an inclined state; and a supporting base is arranged on the top surface of the circulating drying table and located on the bottom surface of the filter table. The filter table is telescopic with the hydraulic pushing rod, so that one end of the filter table is lifted up, and the filter table is in an inclined state. The sludge and sewage are simultaneously poured into the inside of the crushing roller, and the crushing roller rotates in the inside of the filter table. In the process of rotation, the sludge rotates in the inside of the crushing roller, and the water in the sludge is differentiated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sludge drying, in particular to a sludge suspension state circulating drying device. BACKGROUND

[0002] The sludge drying all-in-one machine is an integrated equipment of sludge dewatering and drying, which adopts low-temperature and low-pressure technology to fully remove the water in the filter cake after the sludge with a water content of 88%-99% is treated by conditioning, diaphragm pressing and vacuum low-temperature drying. The fully dried sludge can be used as fuel for combustion. The traditional process of the general sludge drying system is the current main drying mode using the traditional process: traditional thermal energy sludge drying, which refers to the use of sludge thermal drying integrated equipment to realize sludge drying treatment. According to the contact mode of the heat medium and the sludge, the drying equipment can be divided into direct drying, indirect drying and direct-indirect combined drying process types.

[0003] A Chinese patent with publication number CN105753293B discloses a skid-mounted thermal energy self-circulating sludge drying system device. It includes a sludge system and a hot air and hot water system. The sludge system includes a sludge pool, a sludge pump, a sludge noodle machine and a sludge dryer. The lower end of the sludge pool is connected to the sludge noodle machine through a pipeline, and the pipeline is provided with a sludge pump. The outlet of the sludge noodle machine is installed above the drying chain plate of the sludge dryer. The hot air and hot water system includes a waste gas fan, a H105 heat exchanger system, a H106 heat exchange system and a H101-104 internal heat exchange system. The advantages are that the design is ingenious, the system structure is compact, the operation method is reasonable, the service life is long, it is safe and reliable, the drying temperature is high, and the energy consumption is low.

[0004] In the prior art, after the existing silt and the internal part of the river are extracted, the sludge needs to be filtered, cemented, water-pressed and the like in a timely manner. However, the silt inside the river carries a large amount of soil, and the soil inside the silt is very sticky, which can cause the soil to be clumped. The clumped soil carries a large amount of solid impurities and branches and the like inside, so that when the drying treatment is performed, only the outermost soil of the clumped silt can be dried, and the internal silt cannot be effectively and fully dried.

[0005] Therefore, the present application provides a sludge suspension state circulating drying device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the present application to solve the technical problems is that the sludge suspension state circulating drying device comprises:

[0008] A gas circulation heater is fixedly installed on one side edge of the top of the circulating drying platform;

[0009] A filter platform is swingingly sleeved on the other side edge of the top of the circulating drying platform and is retractable with the hydraulic pushing rod, so that one end of the filter platform is lifted and tilted, and the filter platform is in a tilted state.

[0010] A support base is arranged on the top surface of the circulating drying platform and at the bottom surface of the filter platform, a hydraulic pushing rod is swingingly connected to the top surface of the support base and movably sleeved on one side edge of the bottom of the filter platform, and a support base is movably connected to the other side edge of the bottom of the filter platform

[0011] A rotating crushing unit is arranged on the inner side wall of the filter platform, the rotating crushing unit comprises a rotating roller movably sleeved on the two side surfaces of the filter platform, a support strip is detachably installed on one end of the rotating roller inside the filter platform, and the other end of the support strip is fixedly connected with a crushing roller movably sleeved in the filter platform, so that the sludge and sewage are simultaneously injected into the inside of the crushing roller, and the crushing roller rotates in the filter platform, in the process of rotation, the water in the sludge is separated out, a discharge port is arranged on one side surface of the filter platform and at the middle position of the top of the circulating drying platform, and the centrifugal force generated by the rotation of the crushing roller separates out the fine sludge in the sludge, and the separated fine sludge is guided into the inside of the circulating drying platform through the discharge port for drying treatment under the pushing of the sewage.

[0012] The inner side wall of the crushing roller is fixedly connected with uniformly distributed positioning rings, the inner side wall of the positioning ring is fixedly connected with a connecting soft strip, one end of the connecting soft strip is fixedly connected with a counterweight, and the crushing roller swings with the connecting soft strip on the inner side surface of the positioning ring during rotation, and the counterweight at one end of the connecting soft strip impacts the surface of the sludge in the crushing roller under its own gravity, so as to impact and crush the agglomerated sludge, and the crushed sludge enters the inside of the filter platform through the crushing roller, the inner side wall of the crushing roller is fixedly connected with a baffle at the edge position on one side of the discharge port, and after the sludge and sewage are filtered, some fixed impurities such as branches are left in the crushing roller, and the baffle is used to accumulate the residual impurities, so as to facilitate the cleaning of the solid impurities such as branches in the crushing roller.

[0013] Preferably, the two side inner wall surfaces of the crushing roller and located at the top edge position are symmetrically and fixedly connected with clamping sleeves, and a semicircular closed top cover is movably connected to the top surface of the crushing roller.

[0014] Preferably, the two side inner wall surfaces of the semicircular closed top cover and located at the bottom edge position are symmetrically and fixedly connected with abutting buckles movably sleeved on the inner side wall surfaces of the clamping sleeves, and a limiting connection groove movably attached to the top surface of the positioning ring is formed in the inner side wall surface of the semicircular closed top cover.

[0015] Preferably, one side surface of the rotating roller is provided with a symmetrically and fixedly installed motor two, and a conveying track provided on the outer side surface of the rotating roller is movably sleeved on the output end surface of the motor two.

[0016] Preferably, a closed top cover is sleeved on the top surface of the rotating roller, and a water spray pipe is arranged on the inner side wall surface and extends to the two side surfaces of the closed top cover.

[0017] Preferably, a drain pipe and a waste water recovery pipe are fixedly installed on the two side surfaces of the circulating drying table respectively, one end of the waste water recovery pipe is fixedly connected with a hose arranged on one side surface of the closed top cover, and one end of the hose is connected with the inlet of the water spray pipe.

[0018] Preferably, a motor one is symmetrically and fixedly installed on the two inner side wall surfaces of the circulating drying table, an extruding track and a conveying track are movably sleeved on the output end surface of the motor one respectively, and the positions of the extruding track and the conveying track are abutting from top to bottom, the extruded sludge enters the inside of the circulating drying table, the flowing sludge is supported by the concave soft blocks on the top surface of the conveying track, with the rotation of the motor one to the conveying track and the extruding track, the trapezoidal soft blocks on the surface of the extruding track are extruded into the inside of the concave soft blocks, the sludge inside is extruded to separate the water source and the sludge.

[0019] Preferably, a drain port is formed in the bottom inner wall surfaces of the circulating drying table and located on the bottom surface of the conveying track, and the outlet of the drain port is connected with the inlet ends of the drain pipe and the waste water recovery pipe respectively.

[0020] Preferably, trapezoidal soft blocks are fixedly connected on the outer side surface of the extruding track, and the inner side of the trapezoidal soft blocks is provided with a hollow groove.

[0021] Preferably, a semicircular extruding strip is fixedly connected on the outer side surface of the trapezoidal soft block, and the outer side surfaces of the trapezoidal soft block and the semicircular extruding strip are movably attached to the inner side wall surface of the concave soft block.

[0022] The beneficial effects of the present application are as follows:

[0023] 1. The sludge suspension circulating drying device of the present invention, in conjunction with a hydraulic push rod for extension and retraction, raises one end of the filter table, tilting it into an inclined state. Sludge and wastewater are simultaneously fed into the crushing drum, which rotates inside the filter table. During this rotation, the sludge swirls within the drum, separating the water within it. The centrifugal force generated by the rotating drum separates the finer sludge particles from one side of the sludge clumps. These finer particles, propelled by the wastewater, then pass through... The material is guided through the discharge port into the interior of the circulating drying table for drying. As the crushing drum rotates, it swings in conjunction with the connecting strip on the inner surface of the positioning ring. The counterweight at one end of the connecting strip impacts the surface of the sludge inside the crushing drum under its own weight, breaking up some of the clumps of sludge. The broken sludge passes through the crushing drum and enters the interior of the filter table. As the sludge and sewage are filtered, some fixed impurities such as branches remain inside the crushing drum. At the same time, the baffles accumulate the remaining impurities, making it easier to clean the branches and other solid impurities inside later.

[0024] 2. The sludge suspension circulation drying device of the present invention, after the sludge is filtered, opens the semi-circular closed top cover to clean away the solid impurities remaining inside, overlaps the semi-circular closed top cover on the top surface of the crushing drum, and fits the limiting connecting groove on the top surface of the positioning ring to limit the position of the semi-circular closed top cover while preventing the counterweight from generating a certain centrifugal force under high-speed rotation, thereby dragging the positioning ring and deforming it. The docking buckle is put into the inside of the locking sleeve to limit the position of the semi-circular closed top cover.

[0025] 3. The sludge suspension circulating drying device of the present invention, in which the squeezed sludge enters the interior of the circulating drying platform, and the concave soft blocks on the top surface of the conveyor belt support the flowing sludge. As the motor rotates the conveyor belt and the crushing belt, the trapezoidal soft blocks on the surface of the crushing belt are squeezed into the interior of the concave soft blocks, squeezing the sludge accumulated inside and separating the water source and sludge inside the sludge. At the same time, the gas circulation heater circulates hot air into the interior of the circulating drying platform, thereby rapidly drying the sludge after filtering the sewage. The sewage and some of the squeezed sludge are pumped into the interior of the wastewater recovery pipe through the drain outlet, and guided into the interior of the water distribution pipe through the hose, and sprinkled onto the top surface of the crushing drum. The descent of the sewage will open some of the filter holes on the surface of the crushing drum, increasing the filtration efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] The application will be further described below with reference to the drawings.

[0027] Figure 1 is a perspective view of the application;

[0028] Figure 2 is a perspective view of the circulating drying platform from the side;

[0029] Figure 3 is a perspective view of the filtering platform;

[0030] Figure 4 is a perspective view of the filtering platform in cross-section;

[0031] Figure 5 is a perspective view of the crushing roller in expanded form;

[0032] Figure 6 is a perspective view of the crushing roller in internal structure;

[0033] Figure 7 is a perspective view of the circulating drying platform in cross-section;

[0034] Figure 8 is a perspective view of the crushing roller and the conveying belt in cross-section;

[0035] Figure 9 is a perspective view of the trapezoidal soft block in cross-section.

[0036] In the drawings: 11, circulating drying platform; c1, motor one; c2, crushing belt; c3, conveying belt; c4, concave soft block; c5, trapezoidal soft block; c6, hollow groove; c7, semi-circular extrusion strip; c8, drainage port; 111, support chassis; 112, hydraulic pushing rod; 113, drainage pipe; 114, waste water recovery pipe; 115, hose; 12, gas circulation heater; 13, filtering platform; 131, motor two; 132, conveying belt; 133, rotating drum; 134, support strip; 135, crushing roller; a1, clamping sleeve; a2, semi-circular closed top cover; a3, butt joint buckle; a4, limiting engagement groove; a5, positioning ring; a6, engagement soft strip; a7, counterweight; a8, baffle; 136, discharge port; 137, closed top cover; 138, water spray pipe. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application will be further described below in conjunction with specific embodiments.

[0038] As Figures 1 to 7As shown, the sludge suspension state circulating drying device of the embodiment of the present application comprises:

[0039] The gas circulating heater 12 is fixedly installed on one side edge position of the top of the circulating drying table 11.

[0040] The filter table 13 is swingingly sleeved on the other side edge position of the top of the circulating drying table 11.

[0041] The support base 111 is arranged on the top surface of the circulating drying table 11 and the bottom surface of the filter table 13, the top surface of the support base 111 swingingly connects the hydraulic pushing rod 112 which is swingingly sleeved on one side edge position of the bottom of the filter table 13, and the other side edge position of the bottom surface of the filter table 13 is swingingly connected to the other side edge position of the top surface of the support base 111.

[0042] The rotating crushing unit is arranged on the inner side wall surface of the filter table 13, the rotating crushing unit comprises the rotating drum 133 which is swingingly sleeved on the two side surfaces of the filter table 13, the one end of the rotating drum 133 which is located inside the filter table 13 is detachably installed with the support strip 134, the other end of the support strip 134 is fixedly connected with the crushing drum 135 which is swingingly sleeved inside the filter table 13, and the side surface of the filter table 13 and the middle position of the top of the circulating drying table 11 are provided with the discharge port 136.

[0043] The inner side wall surface of the crushing drum 135 is fixedly connected with the evenly distributed positioning annular ring a5, the inner side wall surface of the positioning annular ring a5 is fixedly connected with the connecting soft strip a6, one end of the connecting soft strip a6 is fixedly connected with the counterweight a7, and the inner side wall surface of the crushing drum 135 and the edge position of the one side of the discharge port 136 is fixedly connected with the baffle a8.

[0044] The sludge drying provided by the present application is used in cooperation with the hydraulic push rod 112 to extend and retract, thereby lifting one end of the filtering table 13 to make the filtering table 13 in an inclined state, and simultaneously pouring the sludge and sewage into the inside of the crushing roller 135, and cooperating with the crushing roller 135 to rotate inside the filtering table 13. In the process of rotation, the sludge rotates inside the crushing roller 135, and in the process of rotation, the water inside the sludge is differentiated, and some small sludge inside the sludge group is differentiated by the centrifugal force generated when the crushing roller 135 rotates. The small sludge differentiated is guided into the inside of the circulating drying table 11 through the discharge port 136 under the push of the sewage for drying treatment. When the crushing roller 135 rotates, the engaging soft strip a6 on the inner surface of the positioning ring a5 swings, and the counterweight block a7 at one end of the engaging soft strip a6 impacts the surface of the sludge inside the crushing roller 135 under its own gravity to impact and crush some sludge after clumping. The crushed sludge enters the inside of the filtering table 13 through the crushing roller 135, and after the sludge and the sewage are filtered, some fixed impurities such as branches are left inside the crushing roller 135, and the baffle a8 is used to accumulate the remaining impurities, thereby facilitating the cleaning of the solid impurities such as branches inside in the later period.

[0045] Further, as shown in Figure 4 - Figure 6 The two side inner walls of the crushing roller 135 and the top edge position are symmetrically and fixedly connected with the clamping sleeve shell a1. The top surface of the crushing roller 135 movably overlaps with the semicircular closed top cover a2. The two side inner walls of the semicircular closed top cover a2 and the bottom edge position are symmetrically and fixedly connected with the abutting buckle a3 movably sleeved on the inner wall surface of the clamping sleeve shell a1. The inner wall surface of the semicircular closed top cover a2 is provided with the limiting abutment groove a4 movably attached to the top surface of the positioning ring a5.

[0046] The limiting abutment groove a4, the semicircular closed top cover a2, the clamping sleeve shell a1 and the abutting buckle a3 provided by the present application are used to clean the solid impurities remaining inside by opening the semicircular closed top cover a2 after the sludge is filtered, and the semicircular closed top cover a2 is overlapped on the top surface of the crushing roller 135, and the limiting abutment groove a4 is sleeved on the top surface of the positioning ring a5 to limit the position of the semicircular closed top cover a2, prevent the counterweight block a7 from generating a certain centrifugal force under high-speed rotation, and drag the positioning ring a5 to deform, and the abutting buckle a3 is sleeved in the clamping sleeve shell a1 to limit the position of the semicircular closed top cover a2.

[0047] Further, as shown in Figure 1 -Figure 2 、 Figure 5 and Figure 7 Figure 9 As shown in the figure, the side surface of the rotating roller 133 is provided with a symmetrical fixedly installed motor two 131, the output end surface of the motor two 131 is movably sleeved with a conveying track 132 provided on the outer side surface of the rotating roller 133, the top surface of the rotating roller 133 is sleeved with a closed top cover 137, the inner side wall surface of the closed top cover 137 and extending to the two side surfaces is provided with a water spray pipe 138, the two side surfaces of the circulating drying table 11 are respectively fixedly installed with a drain pipe 113 and a waste water recovery pipe 114, and one end of the top surface of the waste water recovery pipe 114 is fixedly connected with a hose 115 provided on one side surface of the closed top cover 137, and one end of the hose 115 is connected with the inlet of the water spray pipe 138, the two side inner wall surfaces of the circulating drying table 11 are symmetrically fixedly installed with a motor one c1, the output end surfaces of the motor one c1 are respectively movably sleeved with a rolling track c2 and a conveying track c3, and the positions of the rolling track c2 and the conveying track c3 are upper and lower butt joints, the bottom inner wall surfaces of the two side surfaces of the circulating drying table 11 and located on the bottom surface of the conveying track c3 are provided with a drain port c8, and the outlets of the drain port c8 are respectively connected with the inlet ends of the drain pipe 113 and the waste water recovery pipe 114, the outer side surface of the rolling track c2 is fixedly connected with a trapezoidal soft block c5, the inside of the trapezoidal soft block c5 is provided with a hollow groove c6, the outer side surface of the conveying track c3 is fixedly connected with a concave soft block c4, the outer side surface of the trapezoidal soft block c5 is fixedly connected with a semicircular extrusion strip c7, and the outer side surfaces of the trapezoidal soft block c5 and the semicircular extrusion strip c7 are movably attached to the inner side wall surface of the concave soft block c4.

[0048] The sludge extruded by the present application enters the inside of the circulating drying table 11, and the flowing sludge is supported by the concave soft block c4 on the top surface of the conveying track c3, and as the motor one c1 rotates the conveying track c3 and the rolling track c2, the trapezoidal soft block c5 on the surface of the rolling track c2 is extruded into the inside of the concave soft block c4, the sludge accumulated in the inside is extruded, the water source in the sludge and the sludge are separated, and the inside of the circulating drying table 11 is circulated and infused with hot air flow by the gas circulation heater 12, so that the sludge after filtering the sewage is quickly dried, and the sewage and some extruded sludge are infused into the inside of the waste water recovery pipe 114 through the drain port c8, and are guided into the inside of the water spray pipe 138 through the hose 115, and are sprinkled on the top surface of the crushing roller 135, and the falling of the sewage will flush open some blocked filter holes on the surface of the crushing roller 135, and the filtering efficiency is improved.

[0049] ​The working principle provided by the present application is that the hydraulic pushing rod 112 is retracted and extended, so that one end of the filtering table 13 is lifted and tilted, and the sludge and sewage are simultaneously poured into the inside of the crushing roller 135, and the crushing roller 135 rotates in the inside of the filtering table 13. In the process of rotation, the sludge rotates in the inside of the crushing roller 135, and the water in the sludge is separated out. Some fine sludge in the sludge group is separated out by the centrifugal force generated when the crushing roller 135 rotates. The fine sludge separated out is guided into the inside of the circulating drying table 11 through the discharge port 136 for drying treatment under the pushing of the sewage. When the crushing roller 135 rotates, the connecting soft strip a6 on the inner surface of the positioning ring a5 swings, and the counterweight block a7 at one end of the connecting soft strip a6 impacts the surface of the sludge in the inside of the crushing roller 135 under its own gravity, so as to impact and crush the sludge after agglomeration. The crushed sludge enters the inside of the filtering table 13 through the crushing roller 135. After the sludge and the sewage are filtered, some fixed impurities such as branches are left in the inside of the crushing roller 135, and the baffle a8 is used to accumulate the residual impurities, so as to facilitate the cleaning of the solid impurities such as branches in the inside in the later period.

[0050] After the sludge is filtered, the semicircular closed top cover a2 is opened to clean the residual solid impurities. The semicircular closed top cover a2 is overlapped on the top surface of the crushing roller 135, the limiting connection groove a4 is sleeved on the top surface of the positioning ring a5, the position of the semicircular closed top cover a2 is limited, and the centrifugal force generated by the counterweight block a7 under high-speed rotation is prevented from deforming the positioning ring a5. The butt joint buckle a3 is sleeved in the clamping sleeve shell a1 to limit the position of the semicircular closed top cover a2.

[0051] The extruded sludge enters the inside of the circulating drying platform 11, and the concave soft block c4 on the top surface of the conveying crawler belt c3 supports the flowing sludge. As the motor c1 rotates the conveying crawler belt c3 and the rolling crawler belt c2, the trapezoidal soft block c5 on the surface of the rolling crawler belt c2 is extruded into the inside of the concave soft block c4, extruding the sludge accumulated inside, separating the water in the sludge, and cooperating with the gas circulating heater 12 to circulate hot air in the inside of the circulating drying platform 11, thereby quickly drying the sludge after filtering the sewage. The sewage and some extruded sludge are poured into the inside of the waste water recovery pipe 114 through the water outlet c8, guided into the water distribution pipe 138 through the hose 115, and sprinkled on the top surface of the crushing roller 135. The falling of the sewage will flush open some blocked filter holes on the surface of the crushing roller 135, increasing the filtering efficiency.

[0052] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sludge suspension state circulating drying device, comprising: a gas circulating heater (12) fixedly installed on one side edge position of the top of a circulating drying table (11); a filter table (13) swingingly sleeved on the other side edge position of the top of the circulating drying table (11); characterized in that: a supporting base (111) is arranged on the top surface of the circulating drying table (11) and at the bottom of the filter table (13); a hydraulic pushing rod (112) swingingly connected to the top surface of the supporting base (111) is movably sleeved on one side edge position of the bottom of the filter table (13); and the other side edge position of the bottom surface of the filter table (13) is movably connected to the other side edge position of the top surface of the supporting base (111); a rotating crushing unit is arranged on the inner side wall surface of the filter table (13), the rotating crushing unit comprises a rotating drum (133) movably sleeved on the two side surfaces of the filter table (13), a supporting strip (134) movably installed on one end of the rotating drum (133) inside the filter table (13), and a crushing drum (135) fixedly connected to the other end of the supporting strip (134) and movably sleeved inside the filter table (13); and a discharge port (136) is formed on one side surface of the filter table (13) and at the middle position of the top of the circulating drying table (11); a plurality of evenly distributed positioning rings (a5) are fixedly connected to the inner side wall surface of the crushing drum (135), an adapter soft strip (a6) is fixedly connected to the inner side wall surface of the positioning ring (a5), a counterweight (a7) is fixedly connected to one end of the adapter soft strip (a6), and a baffle (a8) is fixedly connected to the inner side wall surface of the crushing drum (135) and at the edge position of the other side of the discharge port (136).

2. The suspended state circulating drying device for sludge according to claim 1, characterized in that: symmetrical clamping sleeve shells (a1) are fixedly connected to the inner wall surfaces of the two sides of the crushing drum (135) and at the top edge positions, and a semicircular closed top cover (a2) is movably connected to the top surface of the crushing drum (135); symmetrical butt joints (a3) movably sleeved on the inner side wall surfaces of the clamping sleeve shells (a1) are fixedly connected to the inner wall surfaces of the two sides of the semicircular closed top cover (a2) and at the bottom edge positions, and a limiting adapter groove (a4) movably attached to the top surface of the positioning ring (a5) is formed on the inner side wall surface of the semicircular closed top cover (a2).

3. The suspended state circulating drying device for sludge according to claim 2, characterized in that: a second motor (131) is fixedly installed on one side of the rotating drum (133), and a transmission crawler belt (132) movably sleeved on the outer side surface of the rotating drum (133) is movably sleeved on the output end surface of the second motor (131).

4. The suspended state circulating drying device for sludge according to claim 3, characterized in that: a closed top cover (137) is sleeved on the top surface of the rotating drum (133), and a water dispersing pipe (138) is arranged on the inner side wall surface of the closed top cover (137) and extends to the two side surfaces.

5. The suspended state circulating drying device for sludge according to claim 1, characterized in that: The both side surfaces of the circulating drying platform (11) are respectively fixedly installed with a drain pipe (113) and a waste water recovery pipe (114), one end of the top surface of the waste water recovery pipe (114) is fixedly connected with a hose (115) arranged on one side surface of a closed top cover (137), and one end of the hose (115) is connected with an inlet of a water dispersing pipe (138).

6. The suspended state circulating dewatering device for sludge according to claim 5, characterized in that: The both side inner wall surfaces of the circulating drying platform (11) are symmetrically fixedly installed with a motor one (c1), the output end surfaces of the motor one (c1) are respectively movably sleeved with a rolling press caterpillar band (c2) and a conveying caterpillar band (c3), and the positions of the rolling press caterpillar band (c2) and the conveying caterpillar band (c3) are upper and lower butt joint.

7. The suspended state circulating drying device for sludge according to claim 6, characterized in that: The bottom inner wall surfaces of the both sides of the circulating drying platform (11) and the bottom surface of the conveying caterpillar band (c3) are provided with a drain port (c8), and the outlet of the drain port (c8) is respectively connected with the inlet ends of the drain pipe (113) and the waste water recovery pipe (114).

8. The suspended state circulating drying device for sludge according to claim 7, characterized in that: The outer side surface of the rolling press caterpillar band (c2) is fixedly connected with a trapezoidal soft block (c5), the inside of the trapezoidal soft block (c5) is provided with a hollow groove (c6), and the outer side surface of the conveying caterpillar band (c3) is fixedly connected with a concave soft block (c4).

9. The suspended state circulating dewatering device for sludge according to claim 8, characterized in that: The outer side surface of the trapezoidal soft block (c5) is fixedly connected with a semicircle extrusion strip (c7), and the outer side surfaces of the trapezoidal soft block (c5) and the semicircle extrusion strip (c7) are movably attached to the inner side wall surface of the concave soft block (c4).

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