CN118108393A - Spiral water treatment silt's clearance and compression device - Google Patents

Abstract

The invention discloses a spiral water treatment silt cleaning and compressing device, which comprises a frame, a motor driving assembly and a plurality of groups of spiral silt cleaning assemblies, wherein each spiral silt cleaning assembly comprises a first screw structure and a second screw structure; the first screw structure is internally provided with a central screw and a first screw spiral blade group, the first screw spiral blade group comprises a feeding zone blade, a dewatering zone blade, a first compression zone blade, a second compression zone blade and a discharging zone blade, the feeding zone blade and the discharging zone blade are used for feeding and discharging, the dewatering zone blade is used for dewatering sludge, and the first compression zone blade and the second compression zone blade are used for compressing and dewatering the sludge; the second screw structure comprises a second screw helical blade and a second screw shell, and a heating device is arranged in the second screw shell to heat and dehydrate the sludge. The invention adopts a partition multi-section type helical blade structure, can carry out multi-section type compression dehydration on sludge, and has good dehydration effect.

Description

Spiral water treatment silt's clearance and compression device

Technical Field

The invention relates to the technical field of environmental treatment systems, in particular to a spiral water treatment sludge cleaning and compressing device.

Background

The river and lake silt is a sediment formed by clay, silt, organic matters and various mineral mixtures, is deposited at the water bottom of the river and lake through physical, chemical and biological actions and water body transmission, and mainly comprises sticky particles, wherein the water content is generally higher than 100%, and some even more than 200%. After dredging the river channel, a large amount of sludge is generated, the water content of the sludge is high, the strength is low, and part of the sludge can also contain toxic and harmful substances, if the sludge is flushed by rain, the surrounding water environment is easily subjected to secondary pollution, so that the sludge generated after dredging is required to be reasonably treated. The treatment process of the sludge is affected by the basic physical and chemical properties of the sludge itself, which mainly include the initial water content, the clay content, the organic content, the clay mineral type, and the pollutant type and degree of pollution of the sludge, and in the actual sludge treatment project, an appropriate treatment scheme can be selected according to the basic properties of the sludge to be treated and the existing treatment conditions. When the sludge is treated in a dewatering, solidifying or physical leaching way, the dried sludge after dewatering and the liquid produced by dewatering are subjected to pollutant detection and treatment, so that the pollution level is reduced below relevant standards.

Patent publication number CN111501644B discloses a sludge collection vehicle with a spiral separation mechanism, comprising a vehicle body; the mud collecting mechanism is arranged on the vehicle body and is close to the ground, and mud on the ground is collected when the vehicle body runs; the stirring tank is arranged in the vehicle body, is connected with the mud collecting mechanism through a water inlet pipe provided with a water pump, and is also connected with the mud-water separating mechanism through a water outlet pipe provided with the water pump; the mud-water separation mechanism is arranged in the vehicle body and comprises an inner wall which is of a hollow inverted cone structure, a feed inlet which is communicated with the water outlet pipe is arranged at the top of the inner wall, the water outlet direction of the feed inlet is tangential to the cross section of the inner wall where the feed inlet is located, a plurality of meshes are arranged on the inner wall, mud water sprayed from the feed inlet flows downwards along the spiral of the inner wall, so that mud water centrifugally moves, water in the mud water is thrown out from the meshes, and mud left after flood disaster on a street is collected. In the technical scheme disclosed in this patent, adopt centrifugal motion's mode to the muddy water of silt to dewater, because the muddy water content of silt is higher, solid particles is comparatively careful, when carrying out centrifugal motion to muddy water, the silt is extremely easy to throw away along with water because of receiving centrifugal force, and the silt is because of receiving centrifugal force still causes the jam mesh, is difficult for breaking away from simultaneously the phenomenon that the inner wall caused piling up to block up easily.

The patent of the publication number CN113417328B of authorizing discloses a river course dredging equipment with silt dewatering mechanism, which comprises a frame, be provided with the slush pump in the frame, still be provided with the squirt in the frame, the water tank, but the silt dewatering mechanism of continuous dewatering, dry silt case and dry silt conveying mechanism, silt dewatering mechanism includes the support frame, casing and crowded material screw plate, the extrusion chamber both ends are equipped with into silt mouth and row's silt mouth, row's silt mouth side is provided with the extrusion board, extrusion chamber bottom is provided with a plurality of apopores, be located two filter cloth passageways that are equipped with in the both sides axial of a plurality of apopore scope on the extrusion chamber, the filter cloth passes two filter cloth passageway end to end, the mechanism that drives the filter cloth rotation is worn to be equipped with in extrusion chamber below axial, the silt exit linkage of slush pump advances the silt mouth, the silt that row's silt mouth discharged falls into dry silt case, dry silt conveying mechanism connects dry silt case. The river dredging equipment can remove water from the sludge and then convey the water to a carrier on the bank, and can use filter cloth for a longer time without affecting the circulation efficiency. In the technical scheme of this patent disclosure, adopt the screw rod spiral to carry mud and water and cooperate the filter cloth to carry out mud and water separation, but the tradition helicitic texture of the crowded material screw plate of this patent disclosure can't form the compressive force that increases to the silt of carrying, can't form fine extrusion dehydration effect to the very high silt of moisture content, easily lead to follow extrusion chamber exhaust silt moisture content is still higher.

In view of the above, we propose a spiral water treatment silt cleaning and compressing device, which adopts a partition multi-section spiral blade structure to perform multi-section compression dehydration on silt, and has good dehydration effect.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a spiral water treatment sludge cleaning and compressing device, which adopts a partition multi-section spiral blade structure, can perform multi-section compression dehydration on sludge and has good dehydration effect.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The device comprises a frame, a motor driving assembly and a plurality of groups of spiral dredging assemblies, wherein the motor driving assembly is arranged on the frame, the plurality of groups of spiral dredging assemblies are used for cleaning and compressing water treatment sludge, and the plurality of groups of spiral dredging assemblies respectively comprise a plurality of groups of first screw structures and second screw structures;

In the technical scheme of the invention, a central screw and a first screw spiral blade group are respectively arranged in the first screw structures, the first screw spiral blade group is fixedly connected to the periphery of the central screw, the first screw spiral blade group comprises a feeding zone blade, a dehydration zone blade, a first compression zone blade, a second compression zone blade and a discharging zone blade, the feeding zone blade and the discharging zone blade are respectively used for feeding and discharging water treatment sludge, the dehydration zone blade is used for dehydrating the water treatment sludge, and the first compression zone blade and the second compression zone blade are used for compressing and further dehydrating the water treatment sludge; the second screw rod structure is located the below of a plurality of first screw rod structures of group, the second screw rod structure includes second screw rod helical blade and second screw rod shell, second screw rod helical blade is located the inside of second screw rod shell, the internally mounted of second screw rod shell has heating device in order to right the silt of transportation on the second screw rod helical blade carries out the heating dehydration.

Further, the feeding zone blade, the dewatering zone blade, the first compression zone blade, the second compression zone blade and the discharging zone blade are sequentially connected from top to bottom, the blade interval of the feeding zone blade is the same as that of the dewatering zone blade, the extrusion force generated by the shrinkage of the blade interval when the sludge is reduced from the feeding zone blade to the dewatering zone blade, the blade interval of the dewatering zone blade, the first compression zone blade, the second compression zone blade and the blade interval of the discharging zone blade are sequentially reduced, and the sequentially reduced blade interval can bring incremental extrusion compression effects to the sludge transported by the sludge.

Further, the central screw is of a hollow structure, a first cavity is formed in the central screw, a plurality of groups of dewatering holes are formed in the upper end face of each dewatering zone blade, a plurality of groups of connecting holes are formed in each dewatering zone blade, the plurality of groups of connecting holes are respectively communicated with the plurality of groups of dewatering holes and the first cavity, the dewatering holes are used for guiding water in sludge on the dewatering zone blades into the first cavity through the connecting holes, the top-down structure of the first screw spiral blade group can enable water in the sludge to enter the dewatering holes due to gravity, the distance between the dewatering zone blades is not contracted compared with that between the dewatering zone blades, the influence of extrusion force on the sludge can be reduced, and the sludge is prevented from being extruded into the dewatering holes to be blocked; the central screw rod is further provided with a plurality of groups of water inlets, the plurality of groups of water inlets are respectively communicated with the first cavity, the plurality of groups of water inlets are positioned at the second compression zone blades, at the moment, silt positioned on the second compression zone blades passes through the dehydration zone blades and the dehydration extrusion of the first compression zone blades, the silt is in a silt state with reduced water content and is influenced by the internal tension of a silt block structure, the silt block structure is not easy to enter the water inlets under the extrusion of the second compression zone blades to cause blockage, the silt block structure is further extruded, and moisture in the silt block structure is further extruded into the water inlets and is led into the first cavity.

Further, the first screw structures of a plurality of groups still include first screw shell and motor connector respectively, the center screw with first screw helical blade group is located the inside of first screw shell, motor connector fixed connection is in the upper end of center screw, motor connector with motor drive assembly's output is connected in order to drive first screw structure rotates.

Further, the second screw structure further comprises a rotating inner cylinder, the second helical blades are fixedly connected to the periphery of the rotating inner cylinder, and the bottom of the rotating inner cylinder is connected with a motor to drive the rotating inner cylinder to rotate; and a conical material guide plate is further arranged between the second screw structure and the first screw structure and used for guiding the sludge blocks compressed and dehydrated by the first screw structure to the second helical blades of the second screw structure, and a plurality of groups of through holes are formed in the conical material guide plate.

Further, the rotary inner cylinder is of a hollow structure and is internally provided with a second cavity, the lower end of the central screw rod penetrates through the through holes respectively and enters the second cavity so as to communicate the first cavity with the second cavity, water in the first cavity enters the second cavity, the inner bottom surface of the second cavity is provided with a diversion slope, one side of the inner bottom surface of the second cavity is also provided with a water outlet, and the diversion slope guides the water entering the second cavity out of the water outlet; the rotary inner cylinder is further provided with a plurality of groups of vent holes, the vent holes are respectively communicated with the second cavity, and the vent holes are used for guiding water vapor generated in the heating and dehydrating process into the second cavity through the vent holes when the second screw shell heats and dehydrates the sludge transported on the second screw helical blade.

Further, the spiral dredging assemblies of the plurality of groups respectively further comprise a feeding chute and a discharging chute, wherein the feeding chute and the discharging chute are used for feeding and discharging in the cleaning and compressing processes of the water treatment sludge, the feeding chute is arranged above the first screw structure, a feeding hole is formed in one side of the feeding chute, and a feeding pipe is connected to the feeding hole so as to introduce the sludge from the outside; the discharging chute comprises a mud outlet and a sedimentation tank, wherein a material guiding slope is arranged on the mud outlet, so that dried mud blocks dehydrated through heating are led out through the material guiding slope, and a water outlet is formed in the upper end of the sedimentation tank and used for discharging water precipitated by the sedimentation tank.

Furthermore, the sedimentation tanks are communicated with the water outlet, and drainage pipes are arranged between the water outlets on the sedimentation tanks in groups and are sequentially connected, so that drainage is facilitated.

Effective gain: in summary, according to the spiral water treatment sludge cleaning and compressing device, the spiral blades of the screw are arranged at intervals, and the spiral blades and the screw are provided with the channels for dehydration treatment in a partitioning manner, so that the partition multi-section type spiral blade structure is designed, the sludge can be subjected to multi-section type compression dehydration treatment, and a good dehydration effect is achieved; meanwhile, the invention utilizes the screw to heat and adopts the vent holes to collect the heat treatment water vapor, thereby further optimizing the dehydration effect.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a spiral water treatment sludge cleaning and compressing apparatus according to the present invention;

FIG. 2 is a schematic structural view of a spiral dredging assembly according to the invention;

FIG. 3 is a schematic view of a first screw structure according to the present invention;

FIG. 4 is a schematic view of a portion of the first screw structure of the present invention in section;

FIG. 5 is a schematic view of the structure of the first screw flighting set of the present invention;

FIG. 6 is an enlarged schematic view of a portion of the structure of the first screw flight set of the present invention;

FIG. 7 is a schematic view of a portion of the structure of the first screw flighting set of the present invention;

FIG. 8 is an enlarged schematic view of a portion of the first screw flight set of the present invention;

FIG. 9 is a schematic diagram of a second screw structure of the present invention;

FIG. 10 is a second schematic structural view of a second screw structure according to the present invention;

FIG. 11 is a schematic view of a portion of the structure of the second screw of the present invention;

FIG. 12 is a schematic view in partial structural section of a second screw structure of the present invention;

FIG. 13 is an enlarged schematic view of a portion of the rotary drum of the present invention;

FIG. 14 is a schematic view of the structure of the feed chute of the present invention;

FIG. 15 is a schematic view of a spout according to the present invention;

FIG. 16 is a second schematic view of the spout of the present invention;

FIG. 17 is a schematic diagram of a sedimentation tank according to the present invention;

In the figure: 100. a frame; 200. a motor drive assembly; 300. a spiral dredging component; 310. a first screw structure; 311. a central screw; 311-1, a first cavity; 311-2, a water inlet hole; 312. a first screw helical blade set; 312-1, blades in a feeding area; 312-2, dewatering zone blades; 312-21, dewatering holes; 312-22, connecting holes; 312-3, first compression zone blades; 312-4, second compression zone blades; 312-5, blades in a discharging area; 313. a first screw housing; 314. a motor connector; 320. a second screw structure; 321. a second screw helical blade; 322. a second screw housing; 323. rotating the inner cylinder; 323-1, a second cavity; 323-2, a diversion slope; 323-3, a water outlet; 323-4, a vent; 324. a conical material guide plate; 324-1, through holes; 330. a feed chute; 331. a feed inlet; 332. a feeding pipe; 340. a discharge chute; 341. a mud outlet; 341-1, a material guiding slope; 342. a sedimentation tank; 342-1, a drain port; 342-2, drain pipe.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only some embodiments of the present invention, not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

In describing the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, in the description of the invention, the meaning of "a number" is two or more, unless explicitly defined otherwise.

In order to solve the problems in the prior art, the embodiment of the invention provides a device for cleaning and compressing sludge in spiral water treatment, which adopts a partition multi-section type spiral blade structure, can perform multi-section type compression dehydration on the sludge and has good dehydration effect.

As shown in fig. 1, the device for cleaning and compressing sludge in spiral water treatment according to the embodiment of the invention comprises a frame 100, a motor driving assembly 200 and a plurality of groups of spiral dredging assemblies 300, wherein the motor driving assembly 200 is installed on the frame 100, and the plurality of groups of spiral dredging assemblies 300 are used for cleaning and compressing the sludge in water treatment.

In this embodiment, as shown in fig. 2, the plurality of sets of screw dredging assemblies 300 respectively include a plurality of sets of first screw structures 310 and second screw structures 320;

Specifically, as shown in fig. 3 and 4, a central screw 311 and a first screw helical blade set 312 are respectively disposed in the first screw structure 310, the first screw helical blade set 312 is fixedly connected to the periphery of the central screw 311, as shown in fig. 5, the first screw helical blade set 312 includes a feeding zone blade 312-1, a dewatering zone blade 312-2, a first compression zone blade 312-3, a second compression zone blade 312-4 and a discharging zone blade 312-5, the feeding zone blade 312-1 and the discharging zone blade 312-5 are respectively used for feeding and discharging water treatment sludge, the dewatering zone blade 312-2 is used for dewatering water treatment sludge, and the first compression zone blade 312-3 and the second compression zone blade 312-4 are used for compressing and further dewatering water treatment sludge; the second screw structure 320 is located under the plurality of sets of first screw structures 310, and as shown in fig. 9, the second screw structure 320 includes a second screw blade 321 and a second screw housing 322, the second screw blade 321 is located inside the second screw housing 322, and a heating device is installed inside the second screw housing 322 to heat and dehydrate sludge transported on the second screw blade 321.

With continued reference to fig. 5, the feeding zone blade 312-1, the dewatering zone blade 312-2, the first compression zone blade 312-3, the second compression zone blade 312-4, and the discharging zone blade 312-5 are sequentially connected from top to bottom, the blade pitches of the feeding zone blade 312-1 and the dewatering zone blade 312-2 are the same, and the blade pitches of the dewatering zone blade 312-2, the first compression zone blade 312-3, the second compression zone blade 312-4, and the discharging zone blade 312-5 are sequentially reduced.

As shown in fig. 6 and 7, the central screw 311 is of a hollow structure, a first cavity 311-1 is formed in the central screw, a plurality of groups of dewatering holes 312-21 are formed in the upper end face of the dewatering-zone blade 312-2, a plurality of groups of connecting holes 312-22 are formed in the dewatering-zone blade 312-2, the plurality of groups of connecting holes 312-22 are respectively communicated with the plurality of groups of dewatering holes 312-21 and the first cavity 311-1, and water in sludge on the dewatering-zone blade 312-2 enters the dewatering holes 312-21 and enters the first cavity 311-1 through the connecting holes 312-22.

As shown in fig. 8, the central screw 311 is further provided with a plurality of groups of water inlet holes 311-2, the plurality of groups of water inlet holes 311-2 are respectively communicated with the first cavity 311-1, the plurality of groups of water inlet holes 311-2 are positioned at the second compression zone blades 312-4, and the sludge on the second compression zone blades 312-4 is further compressed by the second compression zone blades 312-4, so that the water in the sludge blocks is further extruded and enters the inside of the first cavity 311-1 through the water inlet holes 311-2.

In this embodiment, please continue to refer to fig. 3, the plurality of sets of first screw structures 310 further include a first screw housing 313 and a motor connector 314, respectively, the central screw 311 and the first screw helical blade set 312 are located inside the first screw housing 313, the motor connector 314 is fixedly connected to the upper end of the central screw 313, and the motor connector 314 is connected to the output end of the motor driving assembly 200 to drive the first screw structures 310 to rotate.

In this embodiment, as shown in fig. 9 and 10, the second screw structure 320 further includes a rotating inner cylinder 323, the second spiral blade 321 is fixedly connected to the periphery of the rotating inner cylinder 323, and the bottom of the rotating inner cylinder 323 is connected to a motor to drive the rotating inner cylinder 323 to rotate (not shown in the drawings);

Specifically, as shown in fig. 11, a tapered material guiding plate 324 is further disposed between the second screw structure 320 and the first screw structure 310, and the sludge blocks compressed and dehydrated by the first screw structure 310 are guided onto the second screw blade 321 of the second screw structure 320 below the tapered material guiding plate 324, and a plurality of groups of through holes 324-1 are further formed in the tapered material guiding plate 324.

As shown in fig. 12, the rotary inner cylinder 323 is of a hollow structure, a second cavity 323-1 is arranged in the rotary inner cylinder 323, the lower end of the central screw 311 penetrates through the through holes 324-1 respectively and enters the second cavity 323-1, water in the first cavity 311-1 is led into the second cavity 323-1 through the central screw 311, a diversion slope 323-2 is arranged on the inner bottom surface of the second cavity 323-1, a water outlet 323-3 is further formed on one side of the inner bottom surface of the second cavity 323-1, and the water led into the second cavity 323-1 is led out through the water outlet 323-3 under the diversion of the diversion slope 323-2;

As shown in fig. 13, the rotating inner cylinder 323 is further provided with a plurality of groups of air holes 323-4, the plurality of groups of air holes 323-4 are respectively communicated with the second cavity 323-1, and water vapor generated when the second screw shell 322 heats and dewaters the sludge transported on the second screw helical blade 321 enters the second cavity 323-1 through the air holes 323-4.

In this embodiment, referring to fig. 2 and 14, the several sets of spiral dredging assemblies 300 further include a feeding chute 330 and a discharging chute 340, respectively, the feeding chute 330 is installed above the first screw structure 310, a feeding port 331 is formed on one side of the feeding chute 330, and a feeding pipe 332 is connected to the feeding port 331 to introduce sludge from the outside, and the sludge enters the inside of the feeding chute 330 through the feeding pipe 332 and the feeding port 331; as shown in fig. 15, the discharge chute 340 includes a sludge outlet 341 and a sedimentation tank 342, a material guiding slope 341-1 is provided on the sludge outlet 341, the material guiding slope 341-1 guides out the sludge blocks dehydrated by heating and compression, as shown in fig. 16, a water outlet 342-1 is provided at the upper end of the sedimentation tank 342, and the water precipitated by the sedimentation tank 342 is discharged through the water outlet 342-1.

Wherein, the sedimentation tank 342 is communicated with the water outlet 323-3, the water outlet 323-3 guides the water in the second cavity 323-1 into the sedimentation tank 342, as shown in fig. 17, a water drain pipe 342-2 is arranged between the water drain openings 342-1 on the plurality of groups of sedimentation tanks 342 to be sequentially connected, so as to facilitate water drainage.

The specific working principle is as follows: when the spiral water treatment sludge cleaning and compressing device is particularly used, sludge to be treated enters the interior of the feed chute 330 through the feed pipe 332 and the feed port 331; under the driving of the motor, the sludge is guided into the first screw housing 313 and enters the dewatering zone blade 312-2 under the rotation and transportation of the feeding zone blade 312-1, and the water in the sludge on the dewatering zone blade 312-2 enters the dewatering holes 312-21 and enters the first cavity 311-1 through the connecting holes 312-22; the sludge dehydrated by the dehydrating zone blades 312-2 sequentially enters the first compressing zone blades 312-3 and the second compressing zone blades 312-4 along with the rotation of the central screw 311, and the sludge on the second compressing zone blades 312-4 is further compressed by the second compressing zone blades 312-4, and the water in the sludge blocks is further extruded and enters the inside of the first cavity 311-1 through the water inlet holes 311-2; the sludge blocks subjected to multiple extrusion compression dehydration treatment are guided out through the blades 312-5 of the discharge area and are guided into the second spiral blades 321 of the second screw structure 320 below the sludge blocks through the conical guide plates 324; the second screw housing 322 heats and dewaters the sludge blocks transported on the second screw blades 321, and water vapor generated during the heating and dewatering respectively enters the inside of the second cavity 323-1 through the vent holes 323-4, wherein water in the first cavity 311-1 is also guided into the inside of the second cavity 323-1 through the central rotating shaft 311; under the transportation of the second spiral blade 321, the material guiding slope 341-1 guides out the mud blocks of the mud dehydrated by heating and compression, meanwhile, the water in the second cavity 323-1 flows down under the guide of the guide slope 323-2, is guided out through the water outlet 323-3 and enters the sedimentation tank 342 for sedimentation, and the sedimented water is discharged through the water outlet 342-1.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. A spiral water treatment silt cleaning and compressing device is characterized in that:

comprises a frame (100), a motor driving component (200) and a plurality of groups of spiral dredging components (300),

The motor drive assembly (200) is mounted on the frame (100),

The spiral dredging assemblies (300) are used for cleaning and compressing water treatment sludge,

The spiral dredging assemblies (300) respectively comprise a plurality of groups of first screw structures (310) and second screw structures (320);

The inside of the plurality of groups of first screw structures (310) is respectively provided with a central screw (311) and a first screw helical blade group (312), the first screw helical blade group (312) is fixedly connected to the periphery of the central screw (311), the first screw helical blade group (312) comprises a feeding zone blade (312-1), a dewatering zone blade (312-2), a first compression zone blade (312-3), a second compression zone blade (312-4) and a discharging zone blade (312-5), the feeding zone blade (312-1) and the discharging zone blade (312-5) are respectively used for feeding and discharging water treatment sludge, the dewatering zone blade (312-2) is used for dewatering the water treatment sludge, and the first compression zone blade (312-3) and the second compression zone blade (312-4) are used for compressing and further dewatering the water treatment sludge; the second screw rod structure (320) is located the below of a plurality of first screw rod structures (310), second screw rod structure (320) include second screw rod helical blade (321) and second screw rod shell (322), second screw rod helical blade (321) are located the inside of second screw rod shell (322), the internally mounted of second screw rod shell (322) has heating device in order to right silt that transports on second screw rod helical blade (321) is heated dehydration.

2. The spiral water treatment sludge cleaning and compressing device according to claim 1, wherein the feeding zone blade (312-1), the dewatering zone blade (312-2), the first compressing zone blade (312-3), the second compressing zone blade (312-4) and the discharging zone blade (312-5) are sequentially connected from top to bottom, the blade intervals of the feeding zone blade (312-1) and the dewatering zone blade (312-2) are the same, and the blade intervals of the dewatering zone blade (312-2), the first compressing zone blade (312-3), the second compressing zone blade (312-4) and the discharging zone blade (312-5) are sequentially reduced.

3. The device for cleaning and compressing sludge in spiral water treatment according to claim 1, wherein the central screw (311) is of a hollow structure and is internally provided with a first cavity (311-1), a plurality of groups of dehydration holes (312-21) are formed in the upper end face of the dehydration zone blade (312-2), a plurality of groups of connection holes (312-22) are formed in the dehydration zone blade (312-2), and the groups of connection holes (312-22) are respectively communicated with the groups of dehydration holes (312-21) and the first cavity (311-1); the central screw (311) is also provided with a plurality of groups of water inlet holes (311-2), the plurality of groups of water inlet holes (311-2) are respectively communicated with the first cavity (311-1), and the plurality of groups of water inlet holes (311-2) are positioned at the second compression zone blades (312-4).

4. The device according to claim 1, wherein the plurality of sets of first screw structures (310) further comprise a first screw housing (313) and a motor connector (314), respectively, the central screw (311) and the first screw helical blade set (312) are located inside the first screw housing (313), the motor connector (314) is fixedly connected to an upper end of the central screw (313), and the motor connector (314) is connected to an output end of the motor driving assembly (200) to drive the first screw structures (310) to rotate.

5. The device for cleaning and compressing sludge in accordance with claim 1, wherein the second screw structure (320) further comprises a rotating inner cylinder (323), the second screw blade (321) is fixedly connected to the periphery of the rotating inner cylinder (323), and the bottom of the rotating inner cylinder (323) is connected with a motor to drive the rotating inner cylinder (323) to rotate; a conical material guide plate (324) is further arranged between the second screw structure (320) and the first screw structure (310), and a plurality of groups of through holes (324-1) are formed in the conical material guide plate (324).

6. The device for cleaning and compressing sludge for spiral water treatment according to claim 5, wherein the rotary inner cylinder (323) is of a hollow structure and is internally provided with a second cavity (323-1), the lower end of the central screw (311) respectively penetrates through the through holes (324-1) to enter the second cavity (323-1), a diversion slope (323-2) is arranged on the inner bottom surface of the second cavity (323-1), and a water outlet (323-3) is further formed on one side of the inner bottom surface of the second cavity (323-1); the rotary inner cylinder (323) is also provided with a plurality of groups of vent holes (323-4), and the groups of vent holes (323-4) are respectively communicated with the second cavity (323-1).

7. The device for cleaning and compressing sludge in spiral water treatment according to claim 1, wherein the plurality of groups of spiral dredging assemblies (300) respectively further comprise a feed chute (330) and a discharge chute (340), the feed chute (330) is installed above the first screw structure (310), a feed inlet (331) is formed in one side of the feed chute (330), and a feed pipe (332) is connected to the feed inlet (331) to introduce sludge from the outside; the discharging chute (340) comprises a mud outlet (341) and a sedimentation tank (342), a material guiding slope (341-1) is arranged on the mud outlet (341), and a water outlet (342-1) is formed in the upper end of the sedimentation tank (342).

8. The device for cleaning and compressing sludge in spiral water treatment according to claim 7, wherein the sedimentation tanks (342) are communicated with the water outlet (323-3), and drainage pipes (342-2) are arranged between the drainage ports (342-1) on the sedimentation tanks (342) in the plurality of groups and are sequentially connected.