A dredging device for treating engineering sludge in a construction project and a method of using the same

Abstract

The application discloses a kind of dredging equipment for treating engineering silt in building construction and its using method, and the application relates to the technical field of building construction.It includes support frame, and further includes: discharge assembly, the outer wall of the discharge assembly is fixedly connected with the inner wall of support frame, the top of the discharge assembly is fixedly connected with processing component, the processing component includes mixing assembly, the inner wall of the bottom of the mixing assembly is fixedly connected with filter assembly, the inner wall of the mixing assembly is fixedly connected with blowing assembly, the mixing assembly is provided, and closed water circulation system is constructed by connecting guide shell, water flow is driven by water pump through water pump pipe, connecting main pipe to backwater shell, the inclined arrangement of water spray tank forms fan-shaped water flow field, can sufficiently dilute silt and reduce its viscosity, utilize the negative pressure generated when water pump operates to drive filter liquid to flow, form mixing cycle, reduce water pump energy consumption, the dredging equipment achieves the purpose of dredging equipment for treating engineering silt in building construction.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a sludge removal device and its usage method for treating engineering silt during building construction. Background Technology

[0002] In the construction industry, the efficient treatment of engineering sludge has always been a technical challenge. With the acceleration of urbanization and the advancement of infrastructure construction, the amount of sludge generated in various construction projects is increasing day by day. Its characteristics of high water content, high viscosity and complex composition lead to many technical bottlenecks in the treatment process of traditional sludge dredging equipment.

[0003] Traditional dredging equipment often adopts a single-stage processing architecture, which makes it difficult to achieve the synergistic effect of physical and energy fields. In the sludge dilution stage, it usually relies on a large amount of external water for stirring, which not only wastes water resources seriously, but also results in low dilution uniformity and limited effect on reducing sludge viscosity, leading to low efficiency in subsequent solid-liquid separation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a sludge removal device and its usage method for treating engineering sludge during construction. It solves the problem that in the sludge dilution stage, a large amount of external water is usually used for stirring, which not only wastes water resources seriously but also results in low dilution uniformity and limited effect on reducing sludge viscosity, leading to low efficiency in subsequent solid-liquid separation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sludge removal device for treating engineering sludge during construction, comprising: a support frame, and further comprising: a discharge assembly, the outer wall of which is fixedly connected to the inner wall of the support frame; a processing component fixedly connected to the top of the discharge assembly; the processing component comprising a mixing assembly; a filter assembly fixedly connected to the inner wall of the bottom of the mixing assembly; an air blowing assembly fixedly connected to the inner wall of the mixing assembly; and a stepper motor fixedly connected to the top of the filter assembly; the filter assembly comprising a filter cylinder; a rotating shell rotatably connected to the inner wall of the filter cylinder via a fixed shaft, and the outer wall of the fixed shaft rotatably connected to the inner wall of the rotating shell; a filter shell fixedly connected to the outer wall of the filter cylinder; a canvas fixedly connected to the inner wall of the filter shell; an extrusion plate fixedly connected to the bottom of the rotating shell; the extrusion plates being arranged in a circular array along the central axis of the rotating shell; and a water guide pipe fixedly connected to the inner wall of the filter shell.

[0006] Preferably, the bottom of the fixed shaft is fixedly connected to the inner wall of the bottom of the filter cylinder, and a beater is fixedly connected to the outer wall of the fixed shaft. The beater is made of wear-resistant material and is arranged in a circular array along the central axis of the fixed shaft. A fixed column is fixedly connected to the inner wall of the bottom of the rotating shell and is arranged in a circular array along the central axis of the rotating shell. A side pressure plate is fixedly connected to the outer wall of the rotating shell and is arranged in a circular array along the central axis of the rotating shell.

[0007] Preferably, the outer wall of the clapper is in contact with the top of the fixed column, the outer wall of the rotating shell is fixedly connected with guide vanes, and the guide vanes are arranged in a circular array along the central axis of the rotating shell. The top of the rotating shell is fixedly connected to the output end of the stepper motor through a rotating shaft, and the top of the rotating shaft is fixedly connected to the output end of the stepper motor.

[0008] Preferably, the mixing assembly includes a mixing shell, the outer wall of the stepper motor is fixedly connected to the outer wall of the mixing shell via a frame, a water tank is fixedly connected to the outer wall of the mixing shell via a connecting guide shell, and the top of the connecting guide shell is fixedly connected to the inner wall of the mixing shell, a return water shell is fixedly connected to the top of the mixing shell, connecting branch pipes are fixedly connected to the inner walls on both sides of the return water shell, a connecting main pipe is fixedly connected to the end of the connecting branch pipe away from the return water shell, a water spray groove is formed in the wall of the return water shell, and the water spray groove is arranged in a linear array along the outer wall of the return water shell, a water pump is fixedly connected to the outer wall of the connecting main pipe via a pump pipe, and the bottom of the pump pipe is fixedly connected to the outlet end of the water pump.

[0009] Preferably, the bottom of the connecting guide shell is fixedly connected to the inner wall of the water tank, the inner wall of the mixing shell is fixedly connected to the top of the filter cylinder, the top of the pump pipe is fixedly connected to the outer wall of the connecting main pipe, the outer wall of the pump pipe is fixedly connected to the top of the guide pipe, the outer wall of the water pump is fixedly connected to the inner wall of the water tank through the frame, and the outer wall of the frame is fixedly connected to the inner wall of the water tank.

[0010] Preferably, the air blowing assembly includes a connecting shell, an air inlet pipe is fixedly connected to the top of the connecting shell, an air blowing shell is fixedly connected to the top of the connecting shell through a connecting conduit, and the top of the connecting conduit is fixedly connected to the bottom of the air blowing shell.

[0011] Preferably, the air blowing shell has jet grooves in its wall, and the jet grooves are arranged in a circular array along the central axis of the air blowing shell. The bottom of the connecting conduit is fixedly connected to the top of the connecting shell, the outer wall of the connecting conduit is fixedly connected to the inner wall of the mixing shell, and the outer wall of the air inlet pipe is fixedly connected to the outer wall of the mixing shell by a fixing buckle.

[0012] Preferably, the discharge assembly includes a discharge shell, a guide shell is fixedly connected to the inner wall of the discharge shell, a heating tube is fixedly connected to the inner wall of the discharge shell, the heating tube is connected to an external power source, the top of the discharge shell is fixedly connected to the bottom of the mixing shell, and the outer wall of the discharge shell is fixedly connected to the inner wall of the support frame.

[0013] A method for using a sludge removal device for treating engineering sludge during construction, comprising the following steps: Step 1: Fix the support frame, install the discharge assembly and processing components, and debug the water pump, stepper motor and other components; Step 2: Pour the sludge into the mixing shell, start the water pump to spray water for dilution, and at the same time start the air blowing component to form a spiral airflow for stirring; Step 3: Start the stepper motor to drive the rotating shell to rotate. The sludge is dewatered by squeezing and vibration. The water is recovered through the canvas filter, and the mud cake enters the discharge component. Step 4: The heating tube dries the mud cake, which is then discharged through the feed chute. After the operation, the equipment is shut down and maintained.

[0014] This invention provides a sludge removal device and its method for treating construction sludge. It has the following beneficial effects: (I) A sludge removal device and its usage method for treating engineering sludge in construction, which, by setting up a mixing component and constructing a closed water circulation system through a connecting guide shell, uses a water pump to drive water flow through the pump pipe, the connecting main pipe, and the return water shell. The inclined arrangement of the spray tank forms a fan-shaped water flow field, which can fully dilute the sludge and reduce its viscosity. The energy recovery loop design connecting the main pipe and the guide pipe utilizes the negative pressure generated by the water pump to drive the flow of the filtered liquid, forming a mixing circulation and reducing the energy consumption of the water pump. When the water level in the mixing shell exceeds the threshold, the excess water automatically flows back to the water tank, realizing the efficient utilization of water resources. (II) The sludge removal equipment and its usage method for treating engineering sludge in construction, after compressed air is introduced through the air inlet pipe of the air blowing component, it is ejected from the jet chute of the air blowing shell through the connecting shell and connecting pipe to form a spiral airflow. The airflow breaks down the sludge particle agglomerates through the airflow shear force, and the tiny bubbles attach to the light particles to produce an air flotation effect, which assists in solid-liquid separation. The flushing effect of the airflow on the bottom of the mixing shell can prevent sludge deposition and blockage, and extend the continuous operation time of the equipment.

[0015] (III) The sludge removal equipment and its usage method for treating engineering sludge in construction, by setting up a filter assembly, when the stepper motor drives the rotating shell to rotate, the tangential impact force generated by the clapper and the fluid drag force of the guide vane work together to make the sludge enter the filter cylinder evenly. The mechanical extrusion pair formed by the side pressure plate and the extrusion plate, together with the vibration force generated by the clapper hitting the fixed column, constitutes a "centrifugal-extrusion-vibration" composite separation field, which reduces the water content of the sludge. The negative pressure diversion design of the canvas and the water guide pipe further improves the water separation efficiency, so that the solid content of the filtered mud cake meets the requirements of subsequent treatment.

[0016] (iv) The sludge removal equipment and its usage method for treating engineering sludge in construction, by setting up a discharge component, the heating pipe in the discharge shell forms a gradient temperature field through resistance heating, so that the mud cake is heated evenly and the moisture content is further reduced. The linkage design with the filter component realizes continuous "filtration-drying" operation and improves the processing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of the processing component of the present invention; Figure 4 This is a schematic diagram of the structure of the hybrid component of the present invention; Figure 5 This is a schematic diagram of the pump pipe structure of the present invention; Figure 6 This is a schematic diagram of the air blowing assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 8 This is a schematic diagram of the material discharge component of the present invention.

[0018] In the diagram: 1. Support frame; 2. Discharge assembly; 3. Processing component; 4. Air blowing assembly; 5. Stepper motor; 6. Filter assembly; 7. Mixing assembly; 21. Discharge shell; 22. Guide shell; 23. Heating tube; 41. Air inlet pipe; 42. Connecting shell; 43. Connecting guide pipe; 44. Air blowing shell; 45. Air jet chute; 61. Filter shell; 62. Water guide pipe; 63. Canvas; 64. Rotating shell; 65. Fixed shaft; 66. Guide vane; 67. Fixed column; 68. Patter plate; 69. Extrusion plate; 610. Side pressure plate; 611. Filter cylinder; 71. Connecting guide shell; 72. Water tank; 73. Mixing shell; 74. Connecting branch pipe; 75. Connecting main pipe; 76. Water return shell; 77. Water spray trough; 78. Pump water pipe; 79. Water pump. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-8 This invention provides a technical solution: a sludge removal device for treating engineering sludge during construction, comprising: a support frame 1, and a discharge assembly 2, the outer wall of which is fixedly connected to the inner wall of the support frame 1; a processing component 3 is fixedly connected to the top of the discharge assembly 2; the processing component 3 includes a mixing component 7; a filter assembly 6 is fixedly connected to the inner wall of the bottom of the mixing component 7; an air blowing component 4 is fixedly connected to the inner wall of the mixing component 7; and a stepper motor 5 is fixedly connected to the top of the filter assembly 6; the filter assembly 6 includes a filter... A filter cartridge 611 has a rotating shell 64 rotatably connected to its inner wall via a fixed shaft 65. The outer wall of the fixed shaft 65 is rotatably connected to the inner wall of the rotating shell 64. The outer wall of the filter cartridge 611 is fixedly connected to the filter shell 61, and a canvas 63 is fixedly connected to the inner wall of the filter shell 61. A pressing plate 69 is fixedly connected to the bottom of the rotating shell 64, and the pressing plates 69 are arranged in a circular array along the central axis of the rotating shell 64. A water guide pipe 62 is fixedly connected to the inner wall of the filter shell 61. The bottom of the fixed shaft 65 is rotatably connected to the inner wall of the filter cartridge 611. The inner wall of the bottom of the rotating shell 64 is fixedly connected to a fixed shaft 65, and a plate 68 is fixedly connected to the outer wall of the fixed shaft 65. The plate 68 are arranged in a circular array along the central axis of the fixed shaft 65. The inner wall of the bottom of the rotating shell 64 is fixedly connected to a fixed column 67, and the fixed column 67 are arranged in a circular array along the central axis of the rotating shell 64. The outer wall of the rotating shell 64 is fixedly connected to a side pressure plate 610, and the side pressure plate 610 are arranged in a circular array along the central axis of the rotating shell 64. The outer wall of the plate 68 contacts the top of the fixed column 67. The outer wall of the filter is fixedly connected with guide vanes 66, which are arranged in a circular array along the central axis of the rotating shell 64. The top of the rotating shell 64 is fixedly connected to the output end of the stepper motor 5 through a rotating shaft. When the sludge enters the filter cylinder 611, the rotation of the rotating shell 64 drives the guide vanes 66 to rotate synchronously, thereby forcing the sludge to enter. Then, the rotation of the side pressure plate 610 and the extrusion plate 69 is used to extrude the sludge. The water squeezed out of the sludge enters the filter shell 61 through the canvas 63.

[0021] The mixing assembly 7 includes a mixing shell 73. A water tank 72 is fixedly connected to the outer wall of the mixing shell 73 via a connecting guide shell 71. The top of the connecting guide shell 71 is fixedly connected to the inner wall of the mixing shell 73. A return water shell 76 is fixedly connected to the top of the mixing shell 73. Connecting branch pipes 74 are fixedly connected to the inner walls on both sides of the return water shell 76. A connecting main pipe 75 is fixedly connected to the end of the connecting branch pipe 74 away from the return water shell 76. The connection between the connecting main pipe 75 and the water guide pipe 62 forms an energy recovery loop. Water exceeding the capacity of the mixing shell 73 flows in through the top of the connecting guide shell 71 and flows downwards along the connecting guide shell 71 into the water tank 72. A water spray channel 77 is provided in the wall of the return water shell 76, and the water spray channel 77 is arranged in a linear array along the outer wall of the return water shell 76. A water pump 79 is fixedly connected to the outer wall of the connecting main pipe 75 through a water pump pipe 78, and the bottom of the water pump pipe 78 is fixedly connected to the outlet end of the water pump 79. The bottom of the connecting guide shell 71 is fixedly connected to the inner wall of the water tank 72. The inner wall of the mixing shell 73 is fixedly connected to the top of the filter cylinder 611. The top of the water pump pipe 78 is fixedly connected to the outer wall of the connecting main pipe 75. The outer wall of the water pump pipe 78 is fixedly connected to the top of the water guide pipe 62. The outer wall of the water pump 79 is fixedly connected to the inner wall of the water tank 72 through a frame.

[0022] The blowing assembly 4 includes a connecting shell 42, an air inlet pipe 41 fixedly connected to the top of the connecting shell 42, a blowing shell 44 fixedly connected to the top of the connecting shell 42 via a connecting conduit 43, and the top of the connecting conduit 43 fixedly connected to the bottom of the blowing shell 44. The blowing shell 44 has jet grooves 45 in its wall, and the jet grooves 45 are arranged in a circular array along the central axis of the blowing shell 44. The bottom of the connecting conduit 43 is fixedly connected to the top of the connecting shell 42, the outer wall of the connecting conduit 43 is fixedly connected to the inner wall of the mixing shell 73, and the outer wall of the air inlet pipe 41 is fixedly connected to the outer wall of the mixing shell 73 via a fixing buckle.

[0023] The discharge assembly 2 includes a discharge shell 21, a guide shell 22 is fixedly connected to the inner wall of the discharge shell 21, a heating tube 23 is fixedly connected to the inner wall of the discharge shell 21, the top of the discharge shell 21 is fixedly connected to the bottom of the mixing shell 73, and the outer wall of the discharge shell 21 is fixedly connected to the inner wall of the support frame 1.

[0024] A method for using a sludge removal device for treating engineering sludge during construction, comprising the following steps: Step 1: Fix the support frame 1, install the discharge component 2 and the processing component 3, and debug the water pump 79, stepper motor 5 and other components. Fix the support frame 1 to the construction site to ensure horizontal stability. Rigidly connect the discharge component 2 to the inner wall of the support frame 1. Then install the processing component 3 on the top of the discharge component 2, so that the mixing component 7, the filtering component 6, the air blowing component 4 and the stepper motor 5 are precisely assembled in the design position. Check the water storage capacity of the water tank 72, connect the power supply of the water pump 79, the heating tube 23 and the stepper motor 5, and debug the operating status of each component to ensure that the air inlet pipe 41 of the air blowing component 4 is connected to the compressed air source normally. Step 2: The sludge is introduced into the mixing shell 73, and the water pump 79 is started to spray water for dilution. At the same time, the air blowing component 4 is started to form a spiral airflow to stir the sludge. The engineering sludge is introduced into the mixing shell 73 from the top feed port of the mixing component 7. The water pump 79 is started to drive the water in the water tank 72 to enter the return water shell 76 through the pump water pipe 78, the connecting main pipe 75 and the connecting branch pipe 74. The water is sprayed out at a downward angle through the spray channel 77 to form a fan-shaped water flow field, which uniformly dilutes the sludge in the mixing shell 73 and reduces the viscosity of the sludge. At the same time, the air blowing component 4 is started. Compressed air is sprayed out from the jet chute 45 of the air blowing shell 44 through the air inlet pipe 41, the connecting shell 42 and the connecting conduit 43, forming a spiral airflow in the mixing shell 73. The airflow shear force breaks the sludge particle agglomerates and prevents the sludge from settling at the bottom. Step 3: Start the stepper motor 5 to drive the rotating shell 64 to rotate. Through squeezing and vibration, the sludge is dewatered. The water is filtered and recovered through the canvas 63, and the sludge cake enters the discharge assembly 2. After the sludge is diluted evenly, start the stepper motor 5 to drive the rotating shell 64 to rotate inside the filter cylinder 611 through the rotating shaft. This drives the guide vane 66 to rotate to guide the sludge into the filtration area between the rotating shell 64 and the filter cylinder 611. During the rotation of the rotating shell 64, the side pressure plate 610 and the squeezing plate 69 mechanically squeeze the sludge. At the same time, the patting plate 68 continuously pats the fixed column 67 to generate vibration force in the rotating shell 64, causing the water in the sludge to penetrate the canvas 63 and enter the filter shell 61. The water then flows into the pump water pipe 78 through the water guide pipe 62 and participates in water circulation. The dewatered sludge cake is pushed downward by the squeezing plate 69 and discharged from the filter cylinder 611 into the discharge assembly 2. Step 4: The sludge cake is dried by the heating tube 23 and discharged through the guide shell 22. After the operation, the equipment is shut down and maintained. After the sludge cake enters the discharge shell 21 through the guide shell 22, the heating tube 23 is started to heat and dry the sludge cake by resistance heating in a gradient. During the heating process, the variable cross-section streamlined design of the guide shell 22 guides the sludge cake to move at a uniform speed to ensure that it is heated evenly. When the moisture content of the sludge cake drops to the design threshold, it is discharged from the end of the discharge shell 21, completing the entire process of sludge treatment.

[0025] The dredging equipment adopts a three-level processing architecture. The support frame 1 serves as the spatial reference frame, and the physical field and energy field are coupled through modular components. The discharge component 2 is rigidly connected to the support frame 1. In the processing component 3, the stepper motor 5 serves as the power source of the filtration system and transmits rotational kinetic energy to the rotating shell 64 through the fixed shaft 65, thus constructing a processing unit with the synergistic effect of fluid mechanics and mechanical dynamics.

[0026] The mixing assembly 7 connects the water tank 72 and the mixing shell 73 via the connecting guide shell 71. The water pump 79 drives water to flow through the pump pipe 78, the connecting main pipe 75, and the connecting branch pipe 74 into the return water shell 76. The spray channel 77 is arranged at a downward angle to form a water flow field, which uniformly dilutes the sludge in the mixing shell 73, allowing the sludge particles to fully contact the water, reducing viscosity and improving fluidity. In addition, the connection design between the connecting main pipe 75 and the water guide pipe 62 forms an energy recovery loop. Water exceeding the mixing shell 73 will flow in through the top of the connecting guide shell 71 and flow downward along the connecting guide shell 71 into the water tank 72. The liquid discharged from the filter assembly 6 flows through the water guide pipe 6. 2. Water enters the pump pipe 78. Since the water pump 79 in the water tank 72 continuously pumps the water in the water tank 72 to the return water shell 76 through the pump pipe 78, and the guide pipe 62 is connected to the pump pipe 78, the water flow in the pump pipe 78 drives the water flow in the guide pipe 62 to flow. After mixing with the water flow in the pump pipe 78, they participate in the circulation again. Specifically, the water pump 79 continuously delivers the water in the water tank 72 to the return water shell 76. Because the guide pipe 62 is connected to the pump pipe 78, it drives the flow of the filtrate under the negative pressure of the water flow. This design uses fluid potential energy to reduce the energy consumption of the water pump 79. At the same time, it optimizes the rheological characteristics of the sludge through water temperature control to achieve efficient energy utilization.

[0027] The air inlet pipe 41 of the air blowing assembly 4 is connected to a compressed air source, and the compressed air is delivered to the air blowing shell 44 through the connecting shell 42 and the connecting conduit 43. The jet chute 45 is arranged in an inclined annular array. The ejected airflow forms a spiral airflow in the mixing shell 73. This airflow produces multiple effects: the airflow shear force breaks down the sludge particle agglomerates, the microbubbles adhere to the light particles, improving the solid-liquid separation efficiency, and the airflow scouring effect on the bottom of the mixing shell 73 prevents sludge deposition and blockage.

[0028] During the operation of the filter assembly 6, the stepper motor 5 drives the rotating shell 64 to rotate via the rotating shaft, which in turn drives the beater 68 to form a circular motion, generating a tangential impact force on the sludge inside the rotating shell 64. When the sludge enters the filter cylinder 611, the rotation of the rotating shell 64 drives the guide vane 66 to rotate synchronously, thereby forcing the sludge to enter. Subsequently, the rotation of the side pressure plate 610 and the extrusion plate 69 is used to extrude the sludge. The water squeezed out of the sludge enters the filter shell 61 through the canvas 63 and enters the pump water pipe 78 through the water guide pipe 62. The beater 68 and the fixed column 67 are provided in the rotating shell 64. The beater 68 continuously beats the fixed column 67, thereby forcing the rotating shell 64 to generate a vibration force. This vibration force is used to promote the separation of water in the sludge. The sludge with squeezed water is squeezed out downward through the extrusion plate 69 and squeezed out of the filter cylinder 611 and enters the discharge assembly 2.

[0029] In the discharge assembly 2, after the heating tube 23 inside the discharge shell 21 is connected to an external power source, it converts electrical energy into heat energy through resistance heating, and performs gradient heating on the mud cake entering from the guide shell 22, further drying the water in the mud cake entering the discharge assembly 2, ensuring that the moisture content of the discharged material is stable within the design range, and realizing continuous drying operation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sludge removal device for treating construction sludge, comprising: The support frame (1) is characterized in that it further includes a discharge component (2), the outer wall of the discharge component (2) is fixedly connected to the inner wall of the support frame (1), a processing component (3) is fixedly connected to the top of the discharge component (2), the processing component (3) includes a mixing component (7), a filter component (6) is fixedly connected to the inner wall of the bottom of the mixing component (7), an air blowing component (4) is fixedly connected to the inner wall of the mixing component (7), and a stepper motor (5) is fixedly connected to the top of the filter component (6). The filter assembly (6) includes a filter cylinder (611), the inner wall of the filter cylinder (611) is rotatably connected to a rotating shell (64) via a fixed shaft (65), and the outer wall of the fixed shaft (65) is rotatably connected to the inner wall of the rotating shell (64). The outer wall of the filter cylinder (611) is fixedly connected to the filter shell (61), the inner wall of the filter shell (61) is fixedly connected to a canvas (63), the bottom of the rotating shell (64) is fixedly connected to a pressing plate (69), and the pressing plate (69) is arranged in a ring array along the central axis of the rotating shell (64). The inner wall of the filter shell (61) is fixedly connected to a water guide pipe (62). The bottom of the fixed shaft (65) is fixedly connected to the inner wall of the bottom of the filter cylinder (611). A beater (68) is fixedly connected to the outer wall of the fixed shaft (65). The beaters (68) are arranged in a ring array along the central axis of the fixed shaft (65). A fixed column (67) is fixedly connected to the inner wall of the bottom of the rotating shell (64). The fixed column (67) is arranged in a ring array along the central axis of the rotating shell (64). A side pressure plate (610) is fixedly connected to the outer wall of the rotating shell (64). The side pressure plate (610) is arranged in a ring array along the central axis of the rotating shell (64). The mixing assembly (7) includes a mixing shell (73), the outer wall of which is fixedly connected to a water tank (72) via a connecting guide shell (71), the top of which is fixedly connected to the inner wall of the mixing shell (73), the top of which is fixedly connected to a return water shell (76), the inner walls of which are fixedly connected to both sides of the return water shell (76), the end of which is fixedly connected to a main connecting pipe (75) away from the return water shell (76), a spray channel (77) is provided in the wall of the return water shell (76), the spray channel (77) is arranged in a linear array along the outer wall of the return water shell (76), and a water pump (79) is fixedly connected to the outer wall of the main connecting pipe (75) via a pump pipe (78), and the bottom of the pump pipe (78) is fixedly connected to the outlet end of the water pump (79). The air blowing assembly (4) includes a connecting shell (42), an air inlet pipe (41) is fixedly connected to the top of the connecting shell (42), and an air blowing shell (44) is fixedly connected to the top of the connecting shell (42) through a connecting conduit (43). The top of the connecting conduit (43) is fixedly connected to the bottom of the air blowing shell (44). The air blowing shell (44) has air jet grooves (45) in its wall, and the air jet grooves (45) are arranged in a ring array along the central axis of the air blowing shell (44). The stepper motor (5) drives the rotating shell (64) to rotate inside the filter cylinder (611) via the rotating shaft, which in turn drives the guide vane (66) to rotate and guide the sludge into the filtration area between the rotating shell (64) and the filter cylinder (611). During the rotation of the rotating shell (64), the side pressure plate (610) and the extrusion plate (69) mechanically extrude the sludge, while the patting plate (68) continuously pats the fixed column (67) to generate vibration force in the rotating shell (64), which causes the water in the sludge to penetrate the canvas (63) and enter the filter shell (61), and then flow into the pump water pipe (78) through the water guide pipe (62) and participate in the water circulation.

2. The sludge removal equipment for treating engineering sludge during construction as described in claim 1, characterized in that: The outer wall of the clapper (68) is in contact with the top of the fixed column (67). The outer wall of the rotating shell (64) is fixedly connected with a guide vane (66), and the guide vane (66) is arranged in a ring array along the central axis of the rotating shell (64). The top of the rotating shell (64) is fixedly connected to the output end of the stepper motor (5) through a rotating shaft.

3. The sludge removal equipment for treating engineering sludge during construction as described in claim 1, characterized in that: The bottom of the connecting guide shell (71) is fixedly connected to the inner wall of the water tank (72), the inner wall of the mixing shell (73) is fixedly connected to the top of the filter cylinder (611), the top of the pump pipe (78) is fixedly connected to the outer wall of the connecting main pipe (75), the outer wall of the pump pipe (78) is fixedly connected to the top of the guide pipe (62), and the outer wall of the water pump (79) is fixedly connected to the inner wall of the water tank (72) through the frame.

4. The sludge removal equipment for treating engineering sludge during construction as described in claim 1, characterized in that: The bottom of the connecting conduit (43) is fixedly connected to the top of the connecting shell (42), the outer wall of the connecting conduit (43) is fixedly connected to the inner wall of the mixing shell (73), and the outer wall of the air inlet pipe (41) is fixedly connected to the outer wall of the mixing shell (73) by a fixing buckle.

5. A sludge removal device for treating engineering sludge during construction, as described in claim 1, characterized in that: The discharge assembly (2) includes a discharge shell (21), a guide shell (22) is fixedly connected to the inner wall of the discharge shell (21), a heating tube (23) is fixedly connected to the inner wall of the discharge shell (21), the top of the discharge shell (21) is fixedly connected to the bottom of the mixing shell (73), and the outer wall of the discharge shell (21) is fixedly connected to the inner wall of the support frame (1).

6. A method of using a dredging device for treating engineering silt during construction, as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Fix the support frame (1), install the discharge assembly (2) and processing components (3), and debug the water pump (79) and stepper motor (5); Step 2: The sludge is introduced into the mixing shell (73), the water pump (79) is started to spray water to dilute it, and the air blowing component (4) is started at the same time to form a spiral airflow for stirring; Step 3: Start the stepper motor (5) to drive the rotating shell (64) to rotate. The sludge is dehydrated by squeezing and vibration. The water is filtered and recovered through the canvas (63), and the mud cake enters the discharge assembly (2). Step 4: The heating tube (23) dries the mud cake and discharges it through the feed guide shell (22). After the operation, the equipment is shut down and maintained.

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