Biological curing treatment equipment for bottom mud in rivers and lakes

Abstract

The invention belongs to the technical field of sludge solidification treatment, and discloses river and lake sediment biological solidification treatment equipment which comprises a bearing table and further comprises a mixing assembly installed at the top of the bearing table. Sludge and a curing agent at the bottoms of rivers and lakes are synchronously injected into the material injection pipe through the silt suction equipment and the material injection assembly, the sludge and the curing agent are continuously injected into the material injection pipe, the sludge and the curing agent are limited by the limiting ring in the movement process, and meanwhile the material injection pipe is driven by the motor to rotate; under the action of centrifugal force, the curing agent is discharged through the space between the two adjacent partition plates and impacts the inner wall of the mixing bin, the curing agent and the sludge are fully mixed in the impacting process, the mixed sludge is discharged through the other end of the mixing bin and backfilled into the river and the lake, and the sludge and the curing agent in the river and the lake can be fully mixed through the circulation. The phenomenon of non-uniform mixing of sludge in rivers and lakes is avoided, and meanwhile, the sludge curing efficiency is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge solidification treatment, in particular to a biological solidification treatment device for river and lake bottom sludge. Background Art

[0002] When highway construction projects involve lakes, rivers and other water bodies, dredging of sediment often produces a large amount of high-water content, low-strength sludge, which can easily cause environmental pollution and land occupation problems if directly stacked or landfilled. As a green and sustainable solution, biosolidification technology solidifies loose sludge into soil materials with bearing capacity through mineralization reactions induced by microorganisms or enzymes (such as urea hydrolysis to form calcium carbonate cement), or through the use of biological bonding such as plant roots and mycelium networks. This technology can significantly improve the mechanical properties of sediment (such as an increase of 50%-300% in unconfined compressive strength), while reducing the use of chemical additives, and is both eco-friendly and engineering economical.

[0003] At present, the silt in lakes and rivers is usually solidified in situ. First, the water in the lakes and rivers is drained, and the solidification mixing head is installed on the excavator. The excavator is controlled to immerse the solidification mixing head in the silt. The mixing head is driven by the excavator hydraulics to rotate, and the curing agent is prepared by the mixing station in the background. It is transported to the front nozzle of the mixing head through a hose. The curing agent can be sprayed through the mixing head located in the silt to mix the curing agent with the silt, and the silt can be solidified in situ.

[0004] However, the silt and the curing agent are stirred and mixed by the excavator's stirring head. During this process, the rotation speed of the stirring head driven by the hydraulic system of the excavator is low, and it is difficult to generate sufficient shear force to destroy the silt flocculation structure, resulting in uneven mixing of the curing agent and the silt, and the formation of unreacted cementation blind areas in local areas. At the same time, the rotating stirring head can only form a columnar flow field in the viscous silt, resulting in insufficient diffusion of the curing agent, thereby affecting the efficiency of the silt solidification treatment. Therefore, a river and lake sediment biological solidification treatment equipment is proposed. Summary of the invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a biological solidification treatment equipment for river and lake bottom mud, which solves the problem that the existing stirring head has a low rotation speed, it is difficult to generate sufficient shear force to destroy the sludge flocculation structure, and unreacted cementation blind areas are formed in local areas, which affects the solidification of sludge.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a biological solidification treatment device for river and lake sediments, comprising a receiving platform and also comprising: A mixing assembly, wherein the mixing assembly is installed on the top of the receiving platform; a curing agent mixing device, the curing agent mixing device being in communication with the interior of the mixing assembly via an injection assembly; A guide assembly, the guide assembly being installed inside the mixing assembly; A sludge suction device, wherein the sludge suction device is sleeved on the outside of the mixing component; Wherein, the mixing assembly comprises a mixing bin fixedly mounted on the top of the receiving platform, one end of the mixing bin is movably sleeved with a material injection pipe, the other end of the material injection pipe is fixedly mounted with a partition plate in a circular array, the inner wall of the partition plate is fixedly mounted with a guide rod, one end of the partition plate is movably sleeved with a limit ring, and the limit ring is sleeved on the outside of the guide rod; One end of the injection pipe is connected to the output end of the motor on the top of the receiving platform; The sludge suction device and the injection assembly simultaneously inject the sludge and the curing agent into the injection pipe. The sludge and the curing agent are blocked by the limit ring, thrown out through two adjacent partition plates, and hit the inner wall of the mixing bin.

[0007] Preferably, the outer annular array of the injection pipe is provided with a rectangular through groove for silt inlet, the outer part of the injection pipe is sleeved with a first butt joint pipe, the lower end of the first butt joint pipe is sleeved on the outer part of the injection pipe through a sleeve, and the inner diameter of the first butt joint pipe is greater than the width of the rectangular through groove for silt inlet; The first butt joint is fixedly connected to the sludge suction device.

[0008] Preferably, the injection assembly comprises a feed port in an annular array opened at one end of the injection pipe, the injection pipe is sleeved with a second butt joint pipe on the outside, and the second butt joint pipe is fixedly connected to the curing agent mixing device; An injection pipe is fixedly installed inside the injection pipe, and the injection pipe is communicated with the second butt joint pipe.

[0009] Preferably, the guide assembly includes a fixing rod fixedly mounted on one end of the mixing bin, a gathering ring is fixedly mounted on the inner wall of the mixing bin, and the side of the limiting ring is connected to a truncated cone pushing member via a docking member.

[0010] Preferably, a reciprocating spiral groove is formed on the outside of the fixing rod, the frustum pusher is sleeved on the outside of the fixing rod and slides in the reciprocating spiral groove, and one end of the frustum pusher is fixed with a protective tube sleeved on the outside of the fixing rod.

[0011] Preferably, the outer annular array of the truncated cone pusher is provided with cutting blades, and the gap between the truncated cone pusher and the gathering ring gradually decreases from the periphery to the middle.

[0012] Preferably, a blade is fixedly mounted on the other side of the limiting ring, and the blade corresponds to the guide rod; The docking piece is sleeved on the outside of the fixing rod.

[0013] Preferably, a docking ring is fixedly mounted on the inner wall of the mixing bin, and scrapers are symmetrically arranged on the inner wall of the docking ring; The mud impact limit ring cuts the weed branches in the mud through the blade.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a silt suction device and an injection assembly to synchronously inject silt and a curing agent at the bottom of a river channel or lake into an injection pipe, and the silt and the curing agent move in the injection pipe. As the silt and the curing agent are continuously injected into the injection pipe, the silt and the curing agent are limited by a limit ring during movement. At the same time, the injection pipe is driven to rotate by a motor, and is discharged through two adjacent partitions under the action of centrifugal force and hits the inner wall of a mixing bin. During the collision, the curing agent and the silt are fully mixed, and the mixed silt is discharged through the other end of the mixing bin and backfilled into the river channel or lake. In this cycle, the silt in the river channel or lake can be fully mixed with the curing agent, thereby avoiding the phenomenon of uneven mixing of the silt in the river channel or lake, and ensuring the efficiency of silt curing. The present invention continuously injects sludge and curing agent into the upward injection pipe and enters the mixing bin. The sludge and curing agent are guided into the gap between the truncated cone pusher and the gathering ring. At the same time, the truncated cone pusher is driven to rotate by the docking member. The truncated cone pusher moves along the reciprocating spiral groove outside the fixed rod. The truncated cone pusher moves toward the injection pipe to shorten the distance between the truncated cone pusher and the mixing bin. The sludge in the mixing bin is pushed by the truncated cone pusher, thereby increasing the pressure between the truncated cone pusher and the injection pipe, and increasing the flow rate of the sludge passing through the truncated cone pusher and the mixing bin. At the same time, when the sludge passes between the truncated cone pusher and the mixing bin, the sludge is sheared by the cutting blade, and the truncated cone pusher rotates to form a vortex, so that the sludge and the curing agent gather toward the middle of the gathering ring, and the sludge and the curing agent are fully mixed by dispersion and gathering. The present invention shortens the distance between the conical pusher and the gathering ring through the reverse movement, and squeezes the sludge between them. The conical pusher reciprocates to repeatedly increase the pressure of the sludge in the mixing bin, and repeatedly increases the flow rate of the sludge, thereby avoiding the phenomenon of sludge blocking the mixing bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the connection structure of the device of the present invention; Figure 2 This is a schematic diagram of the appearance structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the disassembled structure of the mixing component and the injection component of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the mixing assembly of the present invention; Figure 6This is a schematic diagram of the coordination structure of the guide assembly and the mixing assembly of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the mixing assembly and the guide assembly of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the mixing assembly of the present invention.

[0016] In the figure: 1. receiving platform; 2. guide assembly; 21. fixing rod; 22. protective tube; 23. gathering ring; 24. cutting disc; 25. round table pusher; 211. docking ring; 212. scraper; 3. mixing assembly; 31. injection pipe; 32. silt inlet rectangular through groove; 33. first butt joint; 34. partition plate; 35. guide rod; 36. docking piece; 37. blade; 38. limit ring; 39. mixing bin; 30. mud discharge pipe; 4. injection assembly; 41. injection pipe; 42. feed port; 43. second butt joint; 5. curing agent mixing equipment; 6. silt suction equipment. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 8 As shown, the present invention provides a river and lake sediment biological solidification treatment device, including a receiving platform 1, and also includes: A mixing assembly 3, which is installed on the top of the receiving platform 1; A curing agent mixing device 5, which is connected to the interior of the mixing component 3 through the injection component 4; the structure of the curing agent mixing device 5 can be realized by the prior art, and this application does not make any specific limitation thereto; A guide assembly 2, wherein the guide assembly 2 is installed inside the mixing assembly 3; The silt suction device 6 is sleeved on the outside of the mixing assembly 3; the structure of the silt suction device 6 can be realized by the existing technology, and this application does not make any specific limitation thereto; The mixing assembly 3 includes a mixing chamber 39 fixedly mounted on the top of the receiving platform 1, one end of the mixing chamber 39 is movably sleeved with a material injection pipe 31, one end of the material injection pipe 31 is fixedly mounted with a partition plate 34 in a circular array, the inner wall of the partition plate 34 is fixedly mounted with a guide rod 35, one end of the partition plate 34 is movably sleeved with a limit ring 38, and the limit ring 38 is sleeved on the outside of the guide rod 35; The other end of the injection pipe 31 is connected to the output end of the motor at the top of the receiving platform 1; The sludge suction device 6 and the injection assembly 4 respectively inject the sludge and the curing agent into the injection pipe 31 synchronously. The sludge and the curing agent are blocked by the limit ring 38, and are thrown out through the space between two adjacent partition plates 34 to hit the inner wall of the mixing bin 39.

[0019] The silt and curing agent at the bottom of the river channel and lake are injected into the injection pipe 31 synchronously through the silt suction equipment 6 and the injection assembly 4, and move in the injection pipe 31. As the silt and curing agent are continuously injected into the injection pipe 31, the silt and the curing agent are limited by the limit ring 38 during movement. At the same time, the injection pipe 31 is driven by the motor to rotate, and is discharged through between two adjacent partition plates 34 under the action of centrifugal force, and hits the inner wall of the mixing bin 39. During the centrifugal rotation process and the impact process, the curing agent and the silt are fully mixed, and the mixed silt is discharged through the other end of the mixing bin 39 and backfilled into the river channel and lake, so as to avoid the uneven mixing of silt in the river channel and lake.

[0020] At the same time, when the sludge and the curing agent are discharged between two adjacent partition plates 34, the lumped sludge is cut by the guide rods 35 and the partition plates 34 to prevent the sludge from forming lumps, further improving the mixing effect of the curing agent and the sludge. The number of the partition plates 34 and the guide rods 35 can be selected according to the actual requirements of the sludge cutting thickness.

[0021] It is explained here that the receiving platform 1 can replace a movable trolley, so that the mixing equipment can move along the length of the river channel, which can increase the scope of silt solidification treatment in rivers and lakes.

[0022] As a preferred embodiment, Figure 3 and Figure 4 As shown, the outer annular array of the injection pipe 31 is provided with a rectangular through groove 32 for silting, and the outer part of the injection pipe 31 is sleeved with a first butt joint pipe 33, the lower end of the first butt joint pipe 33 is sleeved on the outer part of the injection pipe 31 through a sleeve, and the inner diameter of the first butt joint pipe 33 is greater than the width of the rectangular through groove 32 for silting; The first butt joint 33 is fixedly connected to the silt suction device 6 .

[0023] The silt in the river and lake is sucked by the silt suction equipment 6, and injected into the interior of the injection pipe 31 through the first butt joint 33 and the silt inlet rectangular groove 32. Since the inner diameter of the first butt joint 33 is larger than the width of the silt inlet rectangular groove 32, it is ensured that the first butt joint 33 can always continuously inject silt into the injection pipe 31 during the rotation of the injection pipe 31. The injection pipe 31 continues to rotate and cooperates with the first butt joint 33 through the outer edge of the silt inlet rectangular groove 32 to perform preliminary shearing treatment on the injected silt.

[0024] As a preferred embodiment, Figure 3 and Figure 4As shown, the injection assembly 4 includes a feed port 42 formed in an annular array at one end of the injection pipe 31, and a second butt joint 43 is sleeved on the outside of the injection pipe 31, and the second butt joint 43 is fixedly connected to the curing agent mixing device 5; An injection pipe 41 is fixedly installed inside the injection pipe 31 , and the injection pipe 41 is communicated with the second butt joint pipe 43 .

[0025] The sludge solidifying agent is prepared by the solidifying agent mixing device 5, and is injected into the middle of the injection pipe 31 through the second connecting pipe 43 and the feed port 42 to contact the sludge. As the sludge continues to move in the injection pipe 31, the injection pipe 41 continues to inject the solidifying agent, so that the solidifying agent can be evenly injected into the sludge.

[0026] As a preferred embodiment, Figure 3 , Figure 6 and Figure 7 As shown, the guide assembly 2 includes a fixed rod 21 fixed to one end of the mixing chamber 39, a gathering ring 23 is fixed to the inner wall of the mixing chamber 39, and a truncated cone pusher 25 is connected to the side of the limiting ring 38 through a docking member 36; A reciprocating spiral groove is provided on the outside of the fixed rod 21, and a cone pusher 25 is sleeved on the fixed rod 21 and slides in the reciprocating spiral groove. One end of the cone pusher 25 is fixedly equipped with a protective tube 22 sleeved on the outside of the fixed rod 21; wherein, the technical principle of controlling a certain structure to slide and reciprocate along the reciprocating spiral groove on the outside of the fixed rod is the prior art in this field, and the present application does not make any specific limitation on this. As long as the cone pusher 25 can slide and reciprocate along the reciprocating spiral groove on the outside of the fixed rod, it falls within the protection scope of the present application.

[0027] The outer annular array of the truncated cone pusher 25 is provided with cutting blades 24, and the gap between the truncated cone pusher 25 and the gathering ring 23 gradually decreases from the periphery to the middle.

[0028] By continuously injecting sludge and curing agent into the injection pipe 31 and entering the mixing chamber 39, the sludge and curing agent are guided into the gap between the conical pusher 25 and the gathering ring 23, and the conical pusher 25 is driven to rotate by the docking member 36. The conical pusher 25 makes a reciprocating spiral groove motion along the outside of the fixed rod 21, and the conical pusher 25 moves toward the injection pipe 31 to shorten the distance therebetween. The conical pusher 25 pushes the sludge in the mixing chamber 39, thereby increasing the pressure between the conical pusher 25 and the injection pipe 31, increasing the flow rate of the sludge passing through the conical pusher 25 and the mixing chamber 39, and further improving the mixing effect of the sludge and curing agent. At the same time, when the sludge passes between the truncated cone pusher 25 and the mixing chamber 39, the sludge is sheared by the cutting blade 24, and the truncated cone pusher 25 rotates to generate a vortex, so that the sludge and the curing agent gather toward the middle of the gathering ring 23, and the sludge and the curing agent are further mixed through dispersion and gathering.

[0029] The cone pusher 25 moves in the reverse direction to shorten the distance between it and the gathering ring 23, squeezing the sludge therebetween, thereby preventing the sludge from clogging the mixing bin 39 through the reciprocating motion of the cone pusher 25.

[0030] As a preferred embodiment, Figure 4-Figure 8 As shown, a blade 37 is fixedly mounted on the other side of the limiting ring 38, and the blade 37 corresponds to the guide rod 35; The docking member 36 is sleeved on the outside of the fixing rod 21; The inner wall of the mixing bin 39 is fixed with a docking ring 211, and the inner wall of the docking ring 211 is symmetrically provided with scrapers 212; The silt hits the limiting ring 38 and cuts the weeds and branches in the silt through the blade 37.

[0031] The cone pusher 25 moves toward the injection pipe 31, and the docking member 36 pushes the limit ring 38 and the blade 37 toward the injection pipe 31. The limit ring 38 moves to shorten the distance between the injection pipe 31, thereby increasing the flow rate of the discharge between the two adjacent partition plates 34, thereby increasing the impact force of the sludge hitting the blade 37. At the same time, the limit ring 38 and the blade 37 cooperate to clean the weeds entangled with the guide rod 35 and the partition plate 34.

[0032] At the same time, the weeds wound around the partition plate 34 and the guide rod 35 during the rotation of the partition plate 34 are cut by the scraper 212 to avoid the phenomenon of excessive weed winding and clogging.

[0033] The working principle and use process of the present invention: The silt and curing agent at the bottom of the river channel and lake are synchronously injected into the injection pipe 31 through the silt suction device 6 and the injection assembly 4, and move in the injection pipe 31. As the silt and curing agent are continuously injected into the injection pipe 31, the silt and curing agent are limited by the limit ring 38 during the movement. At the same time, the injection pipe 31 is driven by the motor to rotate, and is discharged through the space between two adjacent partition plates 34 under the action of centrifugal force, and hits the inner wall of the mixing bin 39. During the collision, the curing agent and the silt are fully mixed, and the mixed silt is discharged through the other end of the mixing bin 39 and backfilled into the river channel and lake. The silt and curing agent in the river channel and lake can be fully mixed by circulating in sequence to avoid the uneven mixing of the silt in the river channel and lake. By continuously injecting sludge and curing agent into the upward injection pipe 31 and into the mixing chamber 39, the sludge and curing agent are guided into the gap between the conical pusher 25 and the gathering ring 23, and the conical pusher 25 is driven to rotate by the docking member 36. The conical pusher 25 moves along the reciprocating spiral groove outside the fixed rod 21, and the conical pusher 25 moves toward the injection pipe 31 to shorten the distance therebetween. The conical pusher 25 pushes the sludge in the mixing chamber 39, thereby increasing the pressure between the conical pusher 25 and the injection pipe 31, increasing the flow rate of the sludge passing through the conical pusher 25 and the mixing chamber 39, and further improving the mixing effect of the sludge and curing agent. At the same time, when the sludge passes between the truncated cone pusher 25 and the mixing chamber 39, the sludge is sheared by the cutting blade 24, and the truncated cone pusher 25 rotates to generate a vortex, so that the sludge and the curing agent gather toward the middle of the gathering ring 23, and the sludge and the curing agent are fully mixed through dispersion and gathering.

[0034] The truncated cone pusher 25 moves in the reverse direction to shorten the distance between the truncated cone pusher 25 and the gathering ring 23, squeezing the sludge therebetween, thereby preventing the sludge from clogging the mixing chamber 39 through the reciprocating motion of the truncated cone pusher 25; The truncated cone pusher 25 moves toward the injection pipe 31, and the butt joint 36 pushes the limit ring 38 and the blade 37 toward the injection pipe 31. The limit ring 38 moves to shorten the distance between the injection pipe 31, thereby increasing the flow rate of the material discharged between the two adjacent partition plates 34, thereby increasing the impact force of the sludge hitting the blade 37. At the same time, the limit ring 38 cooperates with the blade 37 to clean the weeds entangled between the guide rod 35 and the partition plate 34; At the same time, the weeds wound around the partition plate 34 and the guide rod 35 during the rotation of the partition plate 34 are cut by the scraper 212 to avoid the phenomenon of excessive weed winding and clogging.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biological solidification treatment device for river and lake sediments, comprising a receiving platform (1), characterized in that: Also includes: A mixing assembly (3), wherein the mixing assembly (3) is installed on the top of the receiving platform (1); A curing agent mixing device (5), the curing agent mixing device (5) being connected to the interior of the mixing component (3) via an injection component (4); A guide component (2), the guide component (2) being installed inside the mixing component (3); A silt suction device (6), wherein the silt suction device (6) is sleeved on the outside of the mixing component (3); The mixing assembly (3) comprises a mixing chamber (39) fixedly mounted on the top of the receiving platform (1); a material injection pipe (31) is movably sleeved on one end of the mixing chamber (39); a partition plate (34) is fixedly mounted in a circular array on the other end of the material injection pipe (31); a guide rod (35) is fixedly mounted on the inner wall of the partition plate (34); a limit ring (38) is movably sleeved on one end of the partition plate (34); and the limit ring (38) is sleeved on the outside of the guide rod (35); One end of the injection pipe (31) is connected to the output end of the motor at the top of the receiving platform (1); The sludge suction device (6) and the injection assembly (4) simultaneously inject the sludge and the curing agent into the injection pipe (31); the sludge and the curing agent are blocked by the limit ring (38), thrown out through two adjacent partition plates (34), and hit the inner wall of the mixing bin (39).

2. The biological solidification treatment equipment for river and lake sediments according to claim 1 is characterized in that: The outer annular array of the injection pipe (31) is provided with a rectangular through groove (32) for silting; the outer part of the injection pipe (31) is sleeved with a first butt joint pipe (33); the lower end of the first butt joint pipe (33) is sleeved on the outer part of the injection pipe (31) through a sleeve; the inner diameter of the first butt joint pipe (33) is greater than the width of the rectangular through groove (32); The first butt joint (33) is fixedly connected to the silt suction device (6).

3. The biological solidification treatment equipment for river and lake sediments according to claim 2 is characterized in that: The injection assembly (4) comprises an annular array of feed ports (42) opened at one end of the injection pipe (31); the injection pipe (31) is sleeved with a second butt joint (43) on its exterior; the second butt joint (43) is fixedly connected to the curing agent mixing device (5); An injection pipe (41) is fixedly mounted inside the injection pipe (31), and the injection pipe (41) is in communication with the second butt joint pipe (43).

4. The biological solidification treatment equipment for river and lake sediments according to claim 1 is characterized in that: The guide assembly (2) comprises a fixing rod (21) fixedly mounted on one end of the mixing bin (39); a gathering ring (23) is fixedly mounted on the inner wall of the mixing bin (39); and a truncated cone pushing member (25) is connected to the side of the limiting ring (38) via a docking member (36).

5. The biological solidification treatment equipment for river and lake sediments according to claim 4 is characterized in that: The fixed rod (21) is provided with a reciprocating spiral groove on its exterior, the truncated cone pusher (25) is sleeved on the exterior of the fixed rod (21) and slides in the reciprocating spiral groove, and one end of the truncated cone pusher (25) is fixedly mounted with a protective tube (22) sleeved on the exterior of the fixed rod (21).

6. The biological solidification treatment equipment for river and lake sediments according to claim 5 is characterized by: The outer annular array of the truncated cone pusher (25) is provided with cutting blades (24), and the gap between the truncated cone pusher (25) and the gathering ring (23) gradually decreases from the periphery to the middle.

7. The biological solidification treatment equipment for river and lake sediments according to claim 6 is characterized by: A blade (37) is fixedly mounted on the other side of the limiting ring (38), and the blade (37) corresponds to the guide rod (35); The docking piece (36) is sleeved on the outside of the fixing rod (21).

8. The biological solidification treatment equipment for river and lake sediments according to claim 7 is characterized by: A docking ring (211) is fixedly mounted on the inner wall of the mixing bin (39), and scrapers (212) are symmetrically arranged on the inner wall of the docking ring (211); The mud hits the limiting ring (38) and cuts the weed branches in the mud through the blade (37).

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