Soil remediation equipment for river dredging

Abstract

The present invention relates to the technical field of river channel soil restoration, and specifically discloses a soil restoration device for river channel dredging, comprising a shell and a leaching mechanism; a partition is fixedly connected to the inner wall of the shell; the partition divides the inner cavity of the shell into a first cavity and a second cavity in the vertical direction; a first motor is installed on the top surface of the shell; a stirring shaft vertically extending into the first cavity is coaxially fixedly connected to the output end of the first motor; a stirring plate is fixedly connected to the outer wall of the stirring shaft; a feeding hopper connected to the first cavity is fixedly connected to the top surface of the shell; the leaching mechanism is arranged in the first cavity; when the leaching mechanism performs leaching and restoration on the soil, the first motor is started to drive the stirring shaft to rotate, prompting the stirring plate to stir and break up the soil, so that the sprayed restoration liquid can be in uniform and sufficient contact with the soil, so that the leaching work can achieve a restoration effect.

Description

Technical Field

[0001] The invention relates to the technical field of river channel soil restoration, and in particular to soil restoration equipment for river channel dredging. Background Art

[0002] Water dredging is an effective means of controlling water pollution and an important basis for water ecological restoration. During the process of river dredging, the river soil needs to be repaired. For contaminated soil, leaching is mostly used to repair it. The contaminated soil is sent to the leaching equipment and the chemical solution is sprayed to contact the heavy metals and petroleum pollution components in the soil. The soil is backfilled after it is purified.

[0003] In the prior art, when performing soil leaching and remediation, the soil is often placed on a conveyor belt for transportation, and a leaching device is arranged above the conveyor belt. When the soil passes through the leaching device, the remediation liquid is sprayed on the soil to achieve soil leaching. However, it is difficult to ensure uniform arrangement of the soil on the conveyor belt, and the contact time between the soil and the remediation liquid is short, making it difficult to obtain a good leaching effect. Summary of the invention

[0004] The present application provides a soil remediation device for river dredging, which has the function of enabling a remediation liquid to fully contact with the soil so that the elution work can achieve the purpose of providing a remediation effect.

[0005] The present application provides a soil remediation device for river dredging, which adopts the following technical solution: A soil remediation device for river dredging comprises a shell and a rinsing mechanism; a partition is fixedly connected to the inner wall of the shell; the partition divides the inner cavity of the shell into a first cavity and a second cavity in the vertical direction; a first motor is installed on the top surface of the shell; a stirring shaft vertically extending into the first cavity is coaxially fixed to the output end of the first motor; a stirring plate is fixedly connected to the outer wall of the stirring shaft; a feed hopper connected to the first cavity is fixedly connected to the top surface of the shell; and the rinsing mechanism is arranged in the first cavity.

[0006] By adopting the above technical solution, the soil is put into the first cavity of the shell from the feed hopper, and the repair liquid is sprayed into the first cavity through the elution mechanism to wash the soil. During the process of eluting and repairing the soil, the first motor is started to drive the stirring shaft to rotate, so that the stirring plate stirs and breaks up the soil, so that the repair liquid can fully contact the soil, so that the elution work can achieve the repair effect.

[0007] Preferably, the top surface of the partition is vertically rotatably connected to a first reciprocating screw; a scraper is sleeved on the outer wall of the first reciprocating screw and cooperates with the threaded transmission of the first reciprocating screw; the scraper is slidably cooperated with the inner wall of the first cavity; the top of the first reciprocating screw is provided with a first transmission assembly located at the top of the shell; the first transmission assembly can enable the stirring shaft to drive the first reciprocating screw to rotate.

[0008] By adopting the above technical solution, when the stirring shaft drives the stirring plate to rotate, the stirring shaft drives the first reciprocating screw to rotate through the first transmission assembly, causing the scraper to slide back and forth in the vertical direction. During the reciprocating sliding of the scraper, the scraper can not only scrape the soil adhered to the inner wall of the shell, but also cause the soil to roll up and down, so that the soil is evenly and fully contacted with the repair liquid, thereby ensuring the uniformity of soil leaching and repair.

[0009] Preferably, the first transmission assembly includes a first pulley, a second pulley and a belt; the first pulley is coaxially fixed to the outer wall of the end of the stirring shaft close to the first motor; the second pulley is coaxially fixed to the outer wall of the top end of the first reciprocating screw; the belt is sleeved on the outside of the first pulley and the second pulley, and the belt links the first pulley and the second pulley.

[0010] By adopting the above technical solution, when the first motor drives the stirring shaft to rotate, the stirring shaft drives the first reciprocating screw to rotate through the cooperation of the first pulley, the second pulley and the belt, thereby realizing the transmission of kinetic energy during the rotation of the stirring shaft.

[0011] Preferably, a pointed rod is provided on the outer wall of the stirring plate.

[0012] By adopting the above technical solution, during the process of the stirring plate stirring the soil, the pointed rods arranged on the stirring plate can break up the larger mud clods, reduce the occurrence of soil agglomeration, and enable the soil and the repair liquid to be in full contact.

[0013] Preferably, the rinsing mechanism includes a rinsing tube and an infusion assembly; the rinsing tube is fixedly connected to the inner wall at the top of the first cavity, and a plurality of shower nozzles are fixedly connected to the outer wall of the rinsing tube; the infusion assembly is arranged on the outer wall of the shell, and the infusion assembly can transport the repair fluid into the rinsing tube.

[0014] By adopting the above technical solution, after the soil is put into the shell, the repair liquid is transported to the elution tube through the infusion component, and the repair liquid is sprayed out through the shower head and mixed with the soil to achieve the purpose of soil elution and repair.

[0015] Preferably, the infusion assembly includes a liquid storage tank and a pump body; the liquid storage tank is installed on the outer wall of the shell, and the liquid storage tank contains repair fluid; the pump body is installed on the liquid storage tank, the input end of the pump body is fixedly connected to a liquid inlet pipe connected to the liquid storage tank, and the output end of the pump body is fixedly connected to a liquid outlet pipe connected to the elution tube.

[0016] By adopting the above technical solution, when the soil is eluted and repaired, the pump body is started to extract the repair liquid in the liquid storage tank, and the repair liquid is transported to the elution pipe through the liquid inlet pipe and the liquid outlet pipe, thereby conveniently realizing the transportation of the repair liquid.

[0017] Preferably, a second motor is installed on the bottom surface of the shell; the output end of the second motor is coaxially fixedly connected to a mounting plate located in the second cavity; a filter cartridge is detachably mounted on the top surface of the mounting plate; a plurality of through openings are opened on the outer circumferential surface of the filter cartridge; filter screens are installed on the inner side walls of the plurality of through openings; a discharge pipe is fixedly connected to a position on the partition corresponding to the top of the filter cartridge; a first valve is arranged on the discharge pipe; a drain pipe connected to the external environment is fixedly connected to the inner wall of the second cavity; and a second valve is arranged on the drain pipe.

[0018] By adopting the above technical solution, when the soil and the repair liquid are fully mixed in the first cavity, the first valve is opened to allow the soil in the first cavity to fall into the filter cartridge, and then the second motor is started to drive the mounting plate and the filter cartridge to rotate, and the soil in the filter cartridge is centrifugally dehydrated, so that the eluent containing pollutants is separated from the soil, so that the soil can be subsequently backfilled and utilized, and the dehydrated and separated eluent can be discharged from the drain pipe.

[0019] Preferably, a second reciprocating screw is vertically rotatably connected to the inner wall of the bottom end of the second cavity; a ring plate surrounding the outside of the filter cartridge is sleeved on the outside of the second reciprocating screw; the ring plate is threadedly matched with the second reciprocating screw, and a cleaning brush that can contact the filter is provided on the inner wall of the ring plate; a limiting rod vertically penetrating the ring plate is fixedly connected to the inner wall of the bottom end of the second cavity; the ring plate is slidably matched with the outer wall of the limiting rod; a second transmission assembly is provided on the top of the second reciprocating screw; the second transmission assembly can enable the first reciprocating screw to drive the second reciprocating screw to rotate.

[0020] By adopting the above technical solution, during the rotation of the first reciprocating screw, the first reciprocating screw can drive the second reciprocating screw to rotate through the second transmission assembly, causing the ring plate to reciprocate in the vertical direction. During the reciprocating movement of the ring plate, the cleaning brush arranged on the ring plate can clean the filter screen on the filter cartridge, reducing the possibility of the mesh of the filter screen being blocked.

[0021] Preferably, the bottom end of the first reciprocating screw rod passes through the partition and extends into the second cavity; the second transmission assembly includes a first spur gear and a second spur gear; the first spur gear is coaxially fixed to the outer wall of the bottom end of the first reciprocating screw rod; the second spur gear is coaxially sleeved on the outer wall of the top end of the second reciprocating screw rod; an electric push rod is vertically installed on the outer wall of the top end of the second reciprocating screw rod; the output end of the electric push rod is fixed to the end face of the second spur gear, and the electric push rod can make the second spur gear engage or disengage with the first spur gear.

[0022] By adopting the above technical solution, when the electric push rod pushes the second spur gear and the first spur gear to engage, the first reciprocating screw rod can drive the second reciprocating screw rod to rotate during the rotation process through the engagement of the first spur gear and the second spur gear. When the second spur gear is not engaged with the first spur gear, the first reciprocating screw rod will not drive the second reciprocating screw rod to rotate during the rotation process, so that the staff can control the engagement state of the first spur gear and the second spur gear as needed, reduce the load of the first motor, and save energy.

[0023] Preferably, an opening is provided on the inner wall of the second cavity for the filter cartridge to pass through; and a pair of sealing doors are installed on the inner wall of the opening.

[0024] By adopting the above technical solution, the open setting facilitates the installation and disassembly of the filter cartridge, making it easy for the staff to take out the repaired soil. The sealing door is used to block the repair liquid that is dehydrated and thrown out, so that the repair liquid can be collected.

[0025] In summary, this application has the following beneficial effects: 1. The soil to be repaired is put into the first cavity from the feed hopper, and the repair liquid is sprayed into the first cavity through the elution mechanism to wash the soil. During the process of elution and repair of the soil, the first motor is started, and the first motor drives the stirring shaft and the stirring plate to rotate. The rotation of the stirring plate causes the soil to move, so that the repair liquid can be evenly and fully contacted with the soil, so that the elution work can achieve the purpose of providing a repair effect; 2. When the stirring shaft drives the stirring plate to rotate, the stirring shaft drives the first reciprocating screw to rotate through the first transmission assembly, causing the scraper to slide back and forth in the vertical direction. During the reciprocating sliding of the scraper, the scraper can not only clean the soil adhering to the inner wall of the shell, but also cause the soil to roll up and down, thereby ensuring the uniformity of soil leaching and repair; 3. When the stirring plate is stirring the soil, the pointed rods installed on the stirring plate can break up larger pieces of soil and reduce the occurrence of soil agglomeration, so as to promote full contact between the soil and the repair liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the structure of a soil remediation device for river dredging; Figure 2 It is a schematic diagram of the internal structure of the shell in this application; Figure 3 It is a schematic diagram of the matching structure of the stirring shaft, the first transmission assembly and the first reciprocating screw in the present application; Figure 4 It is a schematic diagram of the matching structure of the second motor, the mounting plate and the filter cartridge in the present application; Figure 5 It is a schematic diagram of the matching structure of the first reciprocating screw, the second transmission assembly and the second reciprocating screw in the present application.

[0027] Description of the reference numerals: 1. housing; 11. first cavity; 12. second cavity; 13. feed hopper; 14. drain pipe; 15. sealing door; 2. rinsing mechanism; 21. rinsing pipe; 211. shower nozzle; 22. infusion assembly; 221. liquid storage tank; 222. pump body; 223. liquid inlet pipe; 224. liquid outlet pipe; 3. partition; 31. first reciprocating screw rod; 32. scraper; 33. first transmission assembly; 331. first pulley ; 332, second pulley; 333, belt; 34, discharge pipe; 4, first motor; 41, stirring shaft; 42, stirring plate; 421, pointed rod; 5, second motor; 51, mounting plate; 6, filter cartridge; 61, through port; 62, filter screen; 7, second reciprocating screw; 71, ring plate; 72, cleaning brush; 73, limit rod; 74, second transmission assembly; 741, first spur gear; 742, second spur gear; 743, electric push rod. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings. The same components are denoted by the same reference numerals. It should be noted that the terms "front", "rear", "left", "right", "upper", "lower", "bottom" and "top" used in the following description refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] The present invention discloses a soil repair device for river dredging, such as Figure 1 and Figure 2 As shown, it includes a shell 1 and a rinsing mechanism 2. A partition 3 is horizontally fixed on the inner wall of the shell 1. The partition 3 divides the inner cavity of the shell 1 into two parts: a first cavity 11 located at the top of the partition 3 and a second cavity 12 located at the bottom of the partition 3. A feed hopper 13 connected to the first cavity 11 is fixed on the top surface of the shell 1. The rinsing mechanism 2 is arranged in the first cavity 11 and can spray the repair liquid into the first cavity 11. The rinsing mechanism 2 includes a rinsing tube 21 and an infusion assembly 22. The rinsing tube 21 is U-shaped and horizontally fixed to the inner wall at the top end of the first cavity 11. A plurality of shower nozzles 211 arranged vertically downward are fixed to the rinsing tube 21. The infusion assembly 22 is arranged on the outer wall of the shell 1. The infusion assembly 22 includes a liquid storage tank 221, a pump body 222, a liquid inlet pipe 223 and a liquid outlet pipe 224. The liquid storage tank 221 is installed on the outer wall of the shell 1. The liquid storage tank 221 contains repair liquid. The pump body 222 is installed on the top surface of the liquid storage tank 221. One end of the liquid inlet pipe 223 is fixed to the input end of the pump body 222, and the other end is connected to the inside of the liquid storage tank 221; one end of the liquid outlet pipe 224 is fixed to the output end of the pump body 222, and the other end is fixed to the outer wall of the rinsing tube 21 and connected to the rinsing tube 21.

[0030] The soil to be repaired is put into the first cavity 11 of the shell 1 from the feed hopper 13, and the pump body 222 is started to extract the repair liquid in the liquid storage tank 221. The repair liquid is transported to the elution pipe 21 through the liquid inlet pipe 223 and the liquid outlet pipe 224, and then sprayed out through the shower head 211 to contact and mix with the soil in the first cavity 11, so as to realize the soil elution and repair work.

[0031] like Figure 2 and Figure 3 As shown, a first motor 4 is vertically mounted on the top surface of the shell 1, and a stirring shaft 41 vertically extending into the first cavity 11 is coaxially fixed to the output end of the first motor 4, and a plurality of stirring plates 42 are horizontally fixed to the outer wall of the stirring shaft 41, and a pointed rod 421 is horizontally fixed to the outer wall of each stirring plate 42, and the pointed rod 421 is conical.

[0032] During the soil washing process, the first motor 4 is started, and the first motor 4 drives the stirring shaft 41 and the stirring plate 42 to rotate. The rotation of the stirring plate 42 causes the soil in the first cavity 11 to move, so that the repair liquid can be evenly sprayed on the soil and mixed with the soil. The pointed rod 421 can be used to break up the agglomerated soil so as to promote full contact between the soil and the repair liquid.

[0033] like Figure 2 and Figure 3As shown, the top surface of the partition 3 is vertically rotatably connected to the first reciprocating screw rod 31, and a scraper 32 is horizontally sleeved on the outer wall of the first reciprocating screw rod 31 for threaded transmission. The scraper 32 is annularly surrounded by the outside of the stirring plate 42, and the scraper 32 is slidably matched with the inner wall of the first cavity 11. The top of the first reciprocating screw rod 31 is provided with a first transmission assembly 33 located at the top of the shell 1. The first transmission assembly 33 can make the stirring shaft 41 drive the first reciprocating screw rod 31 to rotate. The first transmission assembly 33 includes a first pulley 331, a second pulley 332 and a belt 333. The first pulley 331 is coaxially fixed to the outer wall of the top end of the stirring shaft 41, and the second pulley 332 is coaxially fixed to the outer wall of the top end of the first reciprocating screw rod 31. The belt 333 is tensioned and sleeved on the outside of the first pulley 331 and the second pulley 332, and the belt 333 makes the first pulley 331 and the second pulley 332 linked.

[0034] With the cooperation of the first pulley 331, the second pulley 332 and the belt 333, the stirring shaft 41 will drive the first reciprocating screw 31 to rotate during the rotation, thereby causing the scraper 32 to slide back and forth in the vertical direction. During the reciprocating sliding process, the scraper 32 can not only cause the soil to roll up and down, but also scrape the soil adhered to the inner wall of the first cavity 11, so as to promote the soil and the repair liquid to be evenly and fully mixed, thereby ensuring the uniformity of soil elution and repair.

[0035] like Figure 1 , Figure 2 and Figure 4 As shown, a second motor 5 is vertically mounted on the bottom surface of the shell 1, and a mounting plate 51 located in the second cavity 12 is coaxially fixedly connected to the output end of the second motor 5, and a filter cartridge 6 is coaxially and detachably mounted on the top surface of the mounting plate 51, and a plurality of through openings 61 are evenly spacedly arranged on the outer circumference of the filter cartridge 6, and a filter screen 62 is mounted on the inner wall of each through opening 61, and a discharge pipe 34 connecting the first cavity 11 and the second cavity 12 is fixedly connected to a position on the partition plate 3 corresponding to the filter cartridge 6, and a first valve is arranged on the discharge pipe 34, and a drain pipe 14 connecting the second cavity 12 and the external environment is fixedly connected to the inner wall of the second cavity 12 near the bottom end, and a second valve is arranged on the drain pipe 14.

[0036] Opening the first valve allows the soil mixed with the repair liquid in the first cavity 11 to fall into the filter cartridge 6, and then starting the second motor 5 to drive the mounting plate 51 and the filter cartridge 6 to rotate, centrifugally dehydrating the soil in the filter cartridge 6, so as to separate the eluent containing pollutants from the soil so that the soil can be subsequently backfilled and utilized, and the dehydrated and separated eluent can be discharged from the drain pipe 14.

[0037] like Figure 1 and Figure 2 As shown, an opening is provided on the inner wall of the second cavity 12 for the filter cartridge 6 to pass through, and a pair of sealing doors 15 for closing the opening are installed on the inner wall of the opening.

[0038] The open setting facilitates manual installation and removal of the filter cartridge 6 and manual collection of dehydrated soil. The sealing door 15 is provided to block the repair liquid thrown out by dehydration so as to collect the repair liquid.

[0039] like Figure 2 and Figure 5 As shown, a second reciprocating screw 7 is vertically rotatably connected to the inner wall at the bottom end of the second cavity 12, and a ring plate 71 coaxially surrounding the outside of the filter cartridge 6 is horizontally sleeved on the outside of the second reciprocating screw 7, and the ring plate 71 is threadedly matched with the second reciprocating screw 7, and cleaning brushes 72 that can contact the filter screens 62 are arranged at positions corresponding to the multiple filter screens 62 on the inner wall of the ring plate 71, and a limiting rod 73 penetrating the ring plate 71 is vertically fixed to the inner wall at the bottom end of the second cavity 12, and the ring plate 71 is slidably matched with the outer wall of the limiting rod 73, and a second transmission assembly 74 that can enable the first reciprocating screw 31 to drive the second reciprocating screw 7 to rotate is arranged on the top of the second reciprocating screw 7.

[0040] During the rotation process, the first reciprocating screw 31 can drive the second reciprocating screw 7 to rotate through the second transmission assembly 74, thereby causing the ring plate 71 to reciprocate in the vertical direction, prompting the cleaning brush 72 provided on the ring plate 71 to clean the filter screen 62, thereby reducing the possibility of the mesh of the filter screen 62 being blocked and ensuring the smoothness of water filtering by the filter screen 62.

[0041] like Figure 2 and Figure 5 As shown, the bottom end of the first reciprocating screw rod 31 passes through the partition 3 and extends into the second cavity 12. The second transmission assembly 74 includes a first spur gear 741, a second spur gear 742 and a pair of electric push rods 743. The first spur gear 741 is coaxially fixed to the outer wall of the bottom end of the first reciprocating screw rod 31, and the second spur gear 742 is coaxially sleeved on the outer wall of the top end of the second reciprocating screw rod 7. The second spur gear 742 is slidably matched with the outer wall of the second reciprocating screw rod 7. A pair of electric push rods 743 are vertically installed on the outer wall of the top end of the second reciprocating screw rod 7. The output ends of the two electric push rods 743 are fixed to the top surface of the second spur gear 742. The electric push rods 743 can make the second spur gear 742 engage or disengage with the first spur gear 741.

[0042] When the electric push rod 743 pushes the second spur gear 742 and the first spur gear 741 to engage, the first reciprocating screw rod 31 can drive the second reciprocating screw rod 7 to rotate through the engagement of the first spur gear 741 and the second spur gear 742 during the rotation process. When the second spur gear 742 is not engaged with the first spur gear 741, the first reciprocating screw rod 31 will not drive the second reciprocating screw rod 7 to rotate during the rotation process, so that the staff can control the engagement state of the first spur gear 741 and the second spur gear 742 as needed, reduce the load of the power component, and save energy.

[0043] Working principle: Soil is put into the housing 1 from the feed hopper 13, the pump body 222 is started to extract the repair liquid in the liquid storage tank 221, the repair liquid is transported to the leaching pipe 21 through the liquid inlet pipe 223 and the liquid outlet pipe 224, and the repair liquid is sprayed out through the shower nozzle 211 to mix with the soil to achieve soil leaching. During the soil leaching process, the first motor 4 is started to drive the stirring shaft 41 and the stirring plate 42 to rotate, and the soil is stirred and dispersed by the rotation of the stirring plate 42. During the rotation of the stirring shaft 41 The stirring shaft 41 drives the first reciprocating screw 31 to rotate through the cooperation of the first pulley 331, the second pulley 332 and the belt 333, so that the scraper 32 can slide back and forth in the vertical direction. During the reciprocating sliding of the scraper 32, the scraper 32 can not only make the soil roll up and down, but also clean the soil adhering to the inner wall of the shell 1, so that the repair liquid sprayed by the shower head 211 can be evenly and fully mixed with the soil, so that the elution work can achieve the purpose of providing repair effect and repair uniformity; When the soil and the repair liquid are fully mixed, the first valve is opened to allow the soil to fall from the discharge pipe 34 into the filter cartridge 6, and the second motor 5 is started to drive the mounting plate 51 and the filter cartridge 6 to rotate, so that the soil in the filter cartridge 6 is centrifugally dehydrated to separate the repair liquid containing pollutants from the soil, so that the dehydrated soil can be backfilled and utilized, and the separated repair liquid can be discharged from the housing 1 through the drain pipe 14 for collection and treatment; When the filter screen 62 on the filter cartridge 6 needs to be cleaned, the electric push rod 743 can be started to make the second spur gear 742 mesh with the first spur gear 741. Under the meshing cooperation of the first spur gear 741 and the second spur gear 742, the first reciprocating screw rod 31 will drive the second reciprocating screw rod 7 to rotate during the rotation process, prompting the ring plate 71 to slide back and forth in the vertical direction. During the reciprocating movement of the ring plate 71, the cleaning brush 72 can clean the filter screen 62, thereby reducing the possibility of the mesh of the filter screen 62 being blocked and reducing the labor intensity.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soil remediation device for river dredging, characterized in that: The invention comprises a shell (1) and a rinsing mechanism (2); a partition (3) is fixedly connected to the inner wall of the shell (1); the partition (3) divides the inner cavity of the shell (1) into two parts, a first cavity (11) and a second cavity (12) in the vertical direction; a first motor (4) is installed on the top surface of the shell (1); a stirring shaft (41) extending vertically into the first cavity (11) is coaxially fixedly connected to the output end of the first motor (4); a stirring plate (42) is fixedly connected to the outer wall of the stirring shaft (41); a feed hopper (13) connected to the first cavity (11) is fixedly connected to the top surface of the shell (1); and the rinsing mechanism (2) is arranged in the first cavity (11).

2. The soil remediation equipment for river dredging according to claim 1, characterized in that: The top surface of the partition (3) is vertically rotatably connected to a first reciprocating screw (31); a scraper (32) is sleeved on the outer wall of the first reciprocating screw (31) and is threadedly matched with the first reciprocating screw (31); the scraper (32) is slidably matched with the inner wall of the first cavity (11); a first transmission component (33) located at the top of the shell (1) is provided at the top of the first reciprocating screw (31); the first transmission component (33) can enable the stirring shaft (41) to drive the first reciprocating screw (31) to rotate.

3. The soil remediation equipment for river dredging according to claim 2, characterized in that: The first transmission assembly (33) comprises a first pulley (331), a second pulley (332) and a belt (333); the first pulley (331) is coaxially fixed to the outer wall of the end of the stirring shaft (41) close to the first motor (4); the second pulley (332) is coaxially fixed to the outer wall of the top end of the first reciprocating screw rod (31); the belt (333) is sleeved on the outside of the first pulley (331) and the second pulley (332), and the belt (333) enables the first pulley (331) and the second pulley (332) to be linked.

4. The soil remediation equipment for river dredging according to claim 1, characterized in that: A pointed rod (421) is provided on the outer wall of the stirring plate (42).

5. The soil remediation equipment for river dredging according to claim 1, characterized in that: The rinsing mechanism (2) comprises a rinsing tube (21) and an infusion assembly (22); the rinsing tube (21) is fixedly connected to the inner wall at the top end of the first cavity (11), and a plurality of shower nozzles (211) are fixedly connected to the outer wall of the rinsing tube (21); the infusion assembly (22) is arranged on the outer wall of the housing (1), and the infusion assembly (22) can transport repair liquid into the rinsing tube (21).

6. The soil remediation equipment for river dredging according to claim 5, characterized in that: The infusion assembly (22) comprises a liquid storage tank (221) and a pump body (222); the liquid storage tank (221) is mounted on the outer wall of the housing (1), and the liquid storage tank (221) contains repair liquid; the pump body (222) is mounted on the liquid storage tank (221), the input end of the pump body (222) is fixedly connected to a liquid inlet pipe (223) in communication with the liquid storage tank (221), and the output end of the pump body (222) is fixedly connected to a liquid outlet pipe (224) in communication with the elution pipe (21).

7. The soil remediation equipment for river dredging according to claim 2, characterized in that: A second motor (5) is mounted on the bottom surface of the shell (1); the output end of the second motor (5) is coaxially fixedly connected to a mounting plate (51) located in the second cavity (12); a filter cartridge (6) is detachably mounted on the top surface of the mounting plate (51); a plurality of through openings (61) are provided on the outer peripheral surface of the filter cartridge (6); filter screens (62) are mounted on the inner side walls of the plurality of through openings (61); a discharge pipe (34) is fixedly connected to the partition plate (3) at a position corresponding to the top of the filter cartridge (6); a first valve is arranged on the discharge pipe (34); a discharge pipe (14) connected to the external environment is fixedly connected to the inner wall of the second cavity (12); a second valve is arranged on the discharge pipe (14).

8. The soil remediation equipment for river dredging according to claim 7, characterized in that: A second reciprocating screw (7) is vertically rotatably connected to the inner wall of the bottom end of the second cavity (12); a ring plate (71) surrounding the outside of the filter cartridge (6) is sleeved on the outside of the second reciprocating screw (7); the ring plate (71) and the second reciprocating screw (7) are threadedly matched, and a cleaning brush (72) that can contact the filter screen (62) is arranged on the inner wall of the ring plate (71); a limiting rod (73) vertically penetrating the ring plate (71) is fixedly connected to the inner wall of the bottom end of the second cavity (12); the ring plate (71) and the outer wall of the limiting rod (73) are slidably matched; a second transmission assembly (74) is arranged on the top of the second reciprocating screw (7); the second transmission assembly (74) can enable the first reciprocating screw (31) to drive the second reciprocating screw (7) to rotate.

9. The soil remediation equipment for river dredging according to claim 8, characterized in that: The bottom end of the first reciprocating screw rod (31) passes through the partition (3) and extends into the second cavity (12); the second transmission assembly (74) comprises a first spur gear (741) and a second spur gear (742); the first spur gear (741) is coaxially fixed to the outer wall of the bottom end of the first reciprocating screw rod (31); the second spur gear (742) is coaxially sleeved on the outer wall of the top end of the second reciprocating screw rod (7); an electric push rod (743) is vertically installed on the outer wall of the top end of the second reciprocating screw rod (7); the output end of the electric push rod (743) is fixed to the end face of the second spur gear (742), and the electric push rod (743) can make the second spur gear (742) engage or disengage with the first spur gear (741).

10. The soil remediation equipment for river dredging according to claim 1, characterized in that: An opening is provided on the inner wall of the second cavity (12) through which the filter cartridge (6) can pass; a pair of sealing doors (15) are installed on the inner wall of the opening.

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