A device for treating river and lake bottom sediment

Abstract

This invention relates to the field of sediment remediation, and more particularly to a device for treating river and lake sediment. Existing devices are inconvenient for judging the thickness of river and lake sediment during use, making it difficult to inject liquid bacteria into sediment of varying thicknesses, resulting in uneven distribution of the liquid bacteria. This invention includes a hull, with a mounting base fixedly connected to the bottom of the hull. A feed hopper is fixedly connected to the mounting base, and a hollow tube is rotatably connected to the lower part of the feed hopper. This invention uses a disc positioned on top of the river and lake sediment, allowing a guide pipe, threaded rod, and agitator to enter the sediment. An appropriate amount of liquid bacteria is then added to the feed hopper. This allows for the injection of liquid bacteria into sediment of varying thicknesses while minimizing dilution by the water, thus improving the treatment effect of river and lake sediment.

Description

Technical Field

[0001] This invention relates to the field of sediment treatment, and more particularly to a device for treating river and lake sediment. Background Technology

[0002] In the process of river and lake pollution control, sediment pollution remediation is one of the main difficulties and a relatively common environmental problem. There is a dynamic balance between absorption and release between water bodies and sediments. When water bodies are severely polluted, some pollutants can enter the sediments through sedimentation, adsorption, and other processes.

[0003] Currently, bottom sediment can be treated by adding liquid microbial inoculants to the water body using a device. The liquid inoculants multiply in the bottom sediment, which can improve the micro-ecology of the water body and bottom silt, and carry out benign decomposition and mineralization of organic matter and nutrients, thereby purifying the water body, repairing the microorganisms in the water system, and forming a benign ecosystem.

[0004] However, due to the undulating bottom of rivers and lakes, the thickness of the sediment in rivers and lakes is uneven. Existing devices are not convenient for judging the thickness of the sediment in rivers and lakes, nor are they convenient for evenly distributing liquid bacteria onto the sediment. This can lead to uneven distribution of the bacteria on the sediment, resulting in poor treatment of the sediment in rivers and lakes. Summary of the Invention

[0005] To address the aforementioned deficiencies, this invention provides a device for treating river and lake sediment, which can inject liquid bacteria more evenly onto sediment of varying thicknesses, resulting in a more uniform distribution of the liquid bacteria and thus improving the treatment effect of river and lake sediment.

[0006] The technical implementation scheme of the present invention is as follows: a river and lake bottom sediment treatment device includes a hull, a mounting base fixedly connected to the bottom of the hull, a feed hopper fixedly connected to the mounting base, a hollow tube rotatably connected to the lower part of the feed hopper, a sleeve rod fixedly connected to the bottom of the mounting base, a disc slidably connected inside the sleeve rod, a through hole opened on the disc, a driving mechanism for driving the disc and the hollow tube to move is provided between the mounting base and the disc, and an agitation mechanism for stirring the bottom sediment is provided between the mounting base and the disc, the agitation mechanism being located below the disc.

[0007] More preferably, the disk is made of aluminum alloy.

[0008] More preferably, the driving mechanism includes an electric push rod, which is located on the lower side of the mounting base. A magnet is fixedly connected to the telescopic rod of the electric push rod, and a magnet is fixedly connected to the through hole on the disc. The magnets on the sides of the first and second magnets that are close to each other have opposite magnetic properties and attract each other. A transmission frame is fixedly connected to the bottom end of the telescopic rod of the electric push rod. The transmission frame passes through the disc, and a guide tube is fixedly connected to the other end of the transmission frame. The upper end of the guide tube is sleeved with the hollow tube and passes through the disc.

[0009] More preferably, the agitation mechanism includes a hexagonal rod rotatably connected to the mounting base, a threaded rod slidably connected to the hexagonal rod, a transmission plate fixedly connected to one end of the guide tube, a transmission plate rotatably connected to the threaded rod at one end, a guide ring fixedly connected to the lower part of the disc, the guide ring being threadedly connected to the threaded rod, and an agitator fixedly connected to the lower end of the threaded rod.

[0010] More preferably, the agitator is located below the disk.

[0011] More preferably, it also includes an opening and closing mechanism, which is disposed on the feed hopper and used to dispense liquid inoculum. The cam is fixedly connected to the upper end of the hexagonal rod, and a sliding plate is slidably connected to the transmission plate. A friction pad is provided on the upper part of the sliding plate. The hexagonal rod passes through the sliding plate, and the sliding plate is located below the cam. A vertical rod is slidably connected to the sliding plate, and the top end of the vertical rod contacts the bottom of the cam. A ball valve body is rotatably connected to the lower part of the feed hopper. A spur gear is fixedly connected to one end of the ball valve body. A torsion spring is connected between the spur gear and the feed hopper. A rack is slidably connected to the lower part of the feed hopper. One end of the rack is fixedly connected to the sliding plate, and the rack meshes with the spur gear.

[0012] More preferably, it also includes a diffusion mechanism disposed on the hollow tube. The diffusion mechanism is used to diffuse the discharged liquid bacteria. The elbow rotating tube is rotatably connected to the guide tube. The elbow rotating tube passes through the disc. A gear one is fixedly connected to the upper end of the elbow rotating tube, and a gear two is fixedly connected to the upper end of the threaded rod. The gear one and the gear two mesh.

[0013] More preferably, the lower end of the elbow rotary tube is bent.

[0014] More preferably, it also includes a pressing mechanism disposed inside the feed hopper. The pressing mechanism is used to squeeze the liquid bacteria in the feed hopper, so that the liquid bacteria in the feed hopper are discharged from the hollow tube more quickly. The pressing mechanism includes a one-way coupling, which is fixedly connected to the upper end of the hexagonal rod. A two-way screw is fixedly connected to the one-way coupling. A pressing frame is slidably connected to the feed hopper. A one-way valve is fixedly connected to the lower part of the pressing frame. A two-way nut is fixedly connected to the upper end of the pressing frame. The two-way nut is threadedly connected to the two-way screw.

[0015] More preferably, it also includes a rubber ring, which is fixedly connected to the lower part of the lower pressure frame.

[0016] Compared with the prior art, the present invention has the following advantages: 1. By having the disc stay on top of the river and lake bottom sediment, the guide pipe, threaded rod and stirring frame will enter the bottom sediment. Then, an appropriate amount of liquid bacteria will be added to the feed hopper. When the river and lake bottom sediment has different thicknesses, liquid bacteria can be injected into the bottom sediment, reducing the situation where the liquid bacteria flow into the water body and are diluted by the water body, thereby treating the river and lake bottom sediment.

[0017] 2. The stirring rack can stir the bottom sediment below the diversion pipe. The stirring rack mixes the liquid bacteria discharged from the diversion pipe with the river and lake bottom sediment, so that the liquid bacteria can be mixed more evenly with the river and lake bottom sediment. The liquid bacteria can be more evenly distributed in the river and lake bottom sediment, further improving the treatment effect of river and lake bottom sediment.

[0018] 3. After the guide pipe moves downward and inserts into the bottom sediment, the threaded rod drives the hexagonal rod to rotate counterclockwise. The counterclockwise rotation of the hexagonal rod drives the cam to rotate counterclockwise. The counterclockwise rotation of the cam can automatically open the ball valve body when the guide pipe enters the silt, so that the liquid bacteria can be injected into the bottom sediment in time, effectively improving the treatment effect of river and lake bottom sediment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0021] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 4 This is a partial three-dimensional structural diagram of the driving mechanism of the present invention.

[0023] Figure 5 For the present invention Figure 4 A magnified three-dimensional structural diagram of A in the middle.

[0024] Figure 6 This is a three-dimensional structural diagram of the feed hopper and hollow tube of the present invention.

[0025] Figure 7 This is a cross-sectional perspective view of the feed hopper, hexagonal rod, and agitator frame of the present invention.

[0026] Figure 8 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0027] Figure 9 For the present invention Figure 8 A magnified three-dimensional structural diagram of B.

[0028] Figure 10 For the present invention Figure 8 A magnified three-dimensional structural diagram of C.

[0029] Figure 11 This is a partial three-dimensional structural diagram of the hexagonal rod, cam, slide, and vertical rod of the present invention.

[0030] Figure 12 This is a partial three-dimensional structural diagram of the stirring mechanism and the pressing mechanism of the present invention.

[0031] Figure 13 This is a partial three-dimensional structural diagram of the pressure frame, one-way valve, and rubber ring of the present invention.

[0032] Figure 14 This is a three-dimensional structural diagram showing the disassembled sleeve, slide bar, and disc of the present invention.

[0033] The above-mentioned attached drawings include the following reference numerals: 1. Hull, 2. Mounting base, 3. Feed hopper, 4. Hollow tube, 5. Sleeve rod, 51. Slide rod, 6. Disc, 71. Electric push rod, 72. Magnet one, 73. Magnet two, 74. Transmission frame, 75. Guide pipe, 81. Hexagonal rod, 82. Threaded rod, 821. Guide ring, 83. Transmission plate, 84. Agitator frame, 91. Cam, 92. Slide plate, 921. Friction pad, 93. Vertical rod, 94. Ball valve body, 95. Spur gear, 96. Torsion spring, 97. Rack frame, 101. Elbow rotating pipe, 102. Gear one, 103. Gear two, 110. One-way coupling, 111. Two-way lead screw, 112. Two-way nut, 113. Lower pressure frame, 114. One-way valve, 12. Rubber ring. Detailed Implementation

[0034] First, it should be noted that in different described embodiments, the same components are given the same reference numerals or the same component names. The disclosure contained throughout this specification can be applied semantically to the same components having the same reference numerals or the same component names. The location descriptions selected in the specification, such as upper, lower, lateral, etc., also refer to the directly described and illustrated figures and are semantically applied to the new location when the location changes.

[0035] Example 1: A device for treating river and lake bottom sediment, such as Figures 1-10 As shown, the vessel includes a hull 1, with a mounting base 2 fixedly connected to the bottom of the hull 1. A feed hopper 3 is fixedly connected to the mounting base 2, and a hollow tube 4 is rotatably connected to the lower part of the feed hopper 3. A sleeve rod 5 is bolted to the bottom of the mounting base 2. The sleeve rod 5 is vertically arranged, and a disc 6 is slidably connected inside the sleeve rod 5. The disc 6 has a through hole. A driving mechanism for moving the disc 6 and the hollow tube 4 is provided between the mounting base 2 and the disc 6. An agitating mechanism for stirring the bottom mud is provided between the mounting base 2 and the disc 6, and the agitating mechanism is located below the disc 6.

[0036] The disc 6 is made of aluminum alloy.

[0037] The driving mechanism includes an electric push rod 71, which is located on the lower side of the mounting base 2. A magnet 72 is fixedly connected to the telescopic rod of the electric push rod 71, and a magnet 73 is fixedly connected to the through hole on the disc 6. The magnets 72 and 73 have opposite magnetic properties on their respective sides and attract each other. A transmission frame 74 is fixedly connected to the bottom end of the telescopic rod of the electric push rod 71. The transmission frame 74 passes through the disc 6, and a guide tube 75 is fixedly connected to the other end of the transmission frame 74. The upper end of the guide tube 75 is sleeved with the hollow tube 4 and passes through the disc 6.

[0038] The agitation mechanism includes a hexagonal rod 81, which is rotatably connected to the mounting base 2. The hexagonal rod 81 is vertically arranged, and a threaded rod 82 is slidably connected to the hexagonal rod 81. One end of the guide pipe 75 is connected to a transmission plate 83 via a flat key. One end of the transmission plate 83 is rotatably connected to the threaded rod 82. A guide ring 821 is fixedly connected to the lower part of the disc 6. The guide ring 821 is threadedly connected to the threaded rod 82. An agitator 84 is fixedly connected to the lower end of the threaded rod 82. The agitator 84 is used to agitate the bottom mud of rivers and lakes.

[0039] The stirring frame 84 is located below the disk 6.

[0040] The operator first maneuvers the vessel 1 to the area where the river / lake bottom sediment is polluted. Then, the operator activates the extension of the electric push rod 71. The extension rod of the electric push rod 71 drives magnet 1 72, magnet 2 73, and disc 6 downwards. The sliding rod 51 inside the sleeve 5 moves downwards with disc 6. Simultaneously, the extension of the extension rod of the electric push rod 71 drives the transmission frame 74, guide pipe 75, transmission plate 83, threaded rod 82, and agitator 84 downwards together. Disc 6 moves downwards until it contacts the river / lake bottom sediment. Then, the river / lake bottom sediment blocks disc 6, and disc 6 stops moving downwards. The extension rod of the electric push rod 71 continues to extend and... The drive frame 74, guide pipe 75, drive plate 83, threaded rod 82, and agitator 84 move downwards together. The guide pipe 75, threaded rod 82, and agitator 84 will enter the bottom sediment. Magnet 1 72 separates from magnet 2 73. Since the guide ring 821 on the disc 6 is threadedly connected to the threaded rod 82, the agitator 84 and hexagonal rod 81 will rotate as the threaded rod 82 and agitator 84 continue to move downwards. The operator observes the rotation of the hexagonal rod 81; rotation of the hexagonal rod 81 indicates that the guide pipe 75, threaded rod 82, and agitator 84 have entered the bottom sediment. The author adds an appropriate amount of liquid bacteria to the feed hopper 3. The liquid bacteria are then discharged into the bottom sediment through the hollow pipe 4 and the guide pipe 75. This allows for more even injection of liquid bacteria into the bottom sediment even when the sediment thickness varies, reducing the likelihood of the liquid bacteria being diluted by the water and thus improving the treatment effect of the sediment. When the guide pipe 75, the threaded rod 82, and the agitator 84 stop moving downwards, the operator controls the extension rod of the electric push rod 71 to shorten. The shortening of the extension rod of the electric push rod 71 will drive the transmission frame 74, the guide pipe 75, the transmission plate 83, and the threaded rod 84. 2. The agitator 84 moves upward together. When the threaded rod 82 and the agitator 84 move upward, they will rotate clockwise. When magnet 1 72 moves upward to the position where magnet 2 73 stops, magnet 1 72 will attract magnet 2 73. Magnet 1 72 will drive magnet 2 73 and disc 6 to move upward and reset. Slide rod 51 will slide upward and reset. The agitator 84 can agitate the bottom sediment below the guide pipe 75 again. The agitator 84 stirs the liquid bacteria discharged from the guide pipe 75 and the bottom sediment, so that the liquid bacteria can be mixed more evenly with the bottom sediment, further improving the treatment effect of river and lake bottom sediment.

[0041] Example 2: Based on Example 1, such as Figures 7-12As shown, it also includes an opening and closing mechanism, which is disposed on the feed hopper 3. The opening and closing mechanism is used to add liquid inoculum. The cam 91 is connected to the upper end of the hexagonal rod 81 via a flat key. A sliding plate 92 is slidably connected to the transmission plate 83. A friction pad 921 made of rubber is provided on the upper part of the sliding plate 92. The hexagonal rod 81 passes through the sliding plate 92. The sliding plate 92 is located below the cam 91. A vertical rod 93 is slidably connected to the sliding plate 92. The top of the vertical rod 93... Contacting the bottom of the cam 91, a ball valve body 94 is rotatably connected to the lower part of the feed hopper 3. One end of the ball valve body 94 is connected to a spur gear 95 via a flat key. A torsion spring 96 is connected between the spur gear 95 and the feed hopper 3. The torsion spring 96 is sleeved on the ball valve body 94. A rack frame 97 is slidably connected to the lower part of the feed hopper 3. The rack frame 97 slides along the feed hopper 3. One end of the rack frame 97 is fixedly connected to the slide plate 92. The rack frame 97 meshes with the spur gear 95.

[0042] It also includes a diffusion mechanism, which is disposed on the hollow tube 4. The diffusion mechanism is used to diffuse the discharged liquid bacteria. The elbow rotating tube 101 is rotatably connected to the guide tube 75. The elbow rotating tube 101 passes through the disc 6. The upper end of the elbow rotating tube 101 is connected to a gear 102 by a key connection. The upper end of the threaded rod 82 is connected to a gear 103 by a key connection. The gear 102 and the gear 103 mesh.

[0043] The lower end of the elbow rotating tube 101 is bent.

[0044] Initially, the operator adds an appropriate amount of liquid bacteria to the hopper. The ball valve body 94 is not connected to the hopper. When the disc 6 contacts the river / lake bottom sediment, the guide pipe 75 enters the sediment, causing the threaded rod 82 to rotate. This rotation drives the hexagonal rod 81, which in turn drives the cam 91. After rotating 180 degrees, the cam 91 presses the vertical rod 93 downwards. This downward movement causes the sliding plate 92 to move downwards on the transmission plate 83. The downward movement of the sliding plate 92 then drives the rack 97 downwards, which in turn drives the spur gear 95 to rotate. This rotation of the spur gear 95 then drives the ball valve body 94 to rotate, torsion spring 96. Once the ball valve body 94 rotates, it connects to the feed hopper 3, allowing the liquid bacteria to be discharged into the sediment through the ball valve body 94 and guide pipe 75. The cam 91 rotates 180 degrees... After a certain period, the vertical rod 93 will no longer be squeezed and will move downwards. Then, the cam 91 will continue to rotate, pushing the vertical rod 93 to rotate along the slide plate 92. When the threaded rod 82 reverses and drives the hexagonal rod 81 to reverse, the reverse rotation of the hexagonal rod 81 will drive the cam 91 to reverse. The reverse rotation of the cam 91 will no longer squeeze the vertical rod 93. The torsion spring 96 will reset and drive the ball valve body 94 to reverse. The reverse rotation of the ball valve body 94 will block the drain port at the bottom of the feed hopper 3. The reverse rotation of the ball valve body 94 will drive the column gear 95 to reverse. The reverse rotation of the column gear 95 will drive the rack frame 97 to move upwards. The upward movement of the rack frame 97 will drive the vertical rod 93 to move upwards. In the case of bottom mud of different thicknesses, when the guide pipe 75 is inserted into the bottom mud, the ball valve body 94 will automatically open to discharge the liquid bacteria. When the guide pipe 75 is pulled out of the bottom mud, the ball valve body 94 will automatically close, so that the liquid bacteria can be injected into the bottom mud in time, improving the effect of river and lake bottom mud treatment.

[0045] When the guide pipe 75 moves downward, it drives the elbow rotating pipe 101 to move downward. When the elbow rotating pipe 101 and the threaded rod 82 move downward, they drive the gear one 102 and the gear two 103 to move downward, respectively. The threaded rod 82 rotates while moving downward. The rotation of the threaded rod 82 drives the gear two 103 to rotate. The rotation of the gear two 103 drives the gear one 102 to rotate. The rotation of the gear one 102 drives the elbow rotating pipe 101 to rotate. When the liquid bacteria are discharged from the elbow rotating pipe 101, the rotation of the elbow rotating pipe 101 can make the liquid bacteria flow into the bottom sediment more evenly. When the elbow rotating pipe 101 rotates, it can provide centrifugal force to the liquid bacteria in the elbow rotating pipe 101, making it easier for the liquid bacteria to be discharged into the bottom sediment, and further improving the effect of river and lake bottom sediment treatment.

[0046] Example 3: Based on Example 2, such as Figures 12-14As shown, it also includes a pressing mechanism, which is disposed inside the feed hopper 3. The pressing mechanism is used to squeeze the liquid bacteria in the feed hopper 3, so that the liquid bacteria in the feed hopper can be discharged from the hollow tube 4 more quickly. The pressing mechanism includes a one-way coupling 110, which is fixedly connected to the upper end of the hexagonal rod 81. A two-way screw 111 is fixedly connected to the one-way coupling 110. A pressing frame 113 is slidably connected to the feed hopper 3. The lower part of the pressing frame 113 is located inside the feed hopper 3. A one-way valve 114 is fixedly connected to the lower part of the pressing frame 113. A two-way nut 112 is connected to the upper end of the pressing frame 113 by a flat key. The two-way nut 112 is threadedly connected to the two-way screw 111.

[0047] It also includes a rubber ring 12, which is fastened to the lower part of the lower pressure frame 113.

[0048] When the hexagonal rod 81 rotates, it drives the double-acting screw 111 to rotate via the one-way coupling 110. The rotation of the double-acting screw 111 drives the double-acting nut 112 to move up and down reciprocally. The up and down reciprocating movement of the double-acting nut 112 drives the lower pressure frame 113 to move up and down reciprocally. When the lower pressure frame 113 moves down, it pushes the liquid bacteria in the feed hopper 3 out of the guide pipe 75, which allows for faster injection of liquid bacteria into the bottom mud. When the lower pressure frame 113 moves up, the one-way valve 114 prevents negative pressure from forming in the feed hopper 3, thus preventing the bottom mud from being drawn up. At the same time, the liquid bacteria can also enter the lower part of the lower pressure frame 113 through the one-way valve 114. When the hexagonal rod 81 rotates clockwise, the ball valve body 94 closes. Under the action of the one-way coupling 110, the hexagonal rod 81 will not drive the double-acting screw 111 to rotate, and the lower pressure frame 113 will not move.

[0049] When the lower pressure frame 113 moves downward, the lower pressure frame 113 will cause the rubber ring 12 to contact the inner wall of the feed hopper 3, which can increase the airtightness between the lower pressure frame 113 and the feed hopper 3, and can more effectively push the liquid bacteria into the bottom mud.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for treating river and lake bottom sediment, characterized in that, The device includes a hull (1), a mounting base (2) fixedly connected to the bottom of the hull (1), a feed hopper (3) fixedly connected to the mounting base (2), a hollow tube (4) rotatably connected to the lower part of the feed hopper (3), a sleeve rod (5) fixedly connected to the bottom of the mounting base (2), a disc (6) slidably connected inside the sleeve rod (5), a through hole on the disc (6), a driving mechanism for driving the disc (6) and the hollow tube (4) to move is provided between the mounting base (2) and the disc (6), and an agitation mechanism for agitating the bottom mud is provided between the mounting base (2) and the disc (6), and the agitation mechanism is located below the disc (6); The driving mechanism includes an electric push rod (71), which is located on the lower side of the mounting base (2). A magnet (72) is fixedly connected to the telescopic rod of the electric push rod (71), and a magnet (73) is fixedly connected to the through hole on the disc (6). The magnets (72) and (73) are magnetically opposite on the side that are close to each other, and they attract each other. A transmission frame (74) is fixedly connected to the bottom end of the telescopic rod of the electric push rod (71). The transmission frame (74) passes through the disc (6), and a guide tube (75) is fixedly connected to the other end of the transmission frame (74). The upper end of the guide tube (75) is sleeved with the hollow tube (4), and the guide tube (75) passes through the disc (6). The agitation mechanism includes a hexagonal rod (81), which is rotatably connected to the mounting base (2). A threaded rod (82) is slidably connected to the hexagonal rod (81). A transmission plate (83) is fixedly connected to one end of the guide tube (75). One end of the transmission plate (83) is rotatably connected to the threaded rod (82). A guide ring (821) is fixedly connected to the lower part of the disc (6). The guide ring (821) is threadedly connected to the threaded rod (82). An agitator (84) is fixedly connected to the lower end of the threaded rod (82).

2. The river and lake bottom sediment treatment device as described in claim 1, characterized in that, The disk (6) is made of aluminum alloy.

3. The river and lake bottom sediment treatment device as described in claim 2, characterized in that, The agitator (84) is located below the disk (6).

4. The river and lake bottom sediment treatment device as described in claim 3, characterized in that, It also includes an opening and closing mechanism, which is set on the feed hopper (3). The opening and closing mechanism is used to add liquid bacteria. The cam (91) is fixedly connected to the upper end of the hexagonal rod (81). A sliding plate (92) is slidably connected to the transmission plate (83). A friction pad (921) is provided on the upper part of the sliding plate (92). The hexagonal rod (81) passes through the sliding plate (92). The sliding plate (92) is located below the cam (91). A vertical rod (93) is slidably connected to the sliding plate (92). The top of the vertical rod (93) contacts the bottom of the cam (91). A ball valve body (94) is rotatably connected to the lower part of the feed hopper (3). A spur gear (95) is fixedly connected to one end of the ball valve body (94). A torsion spring (96) is connected between the spur gear (95) and the feed hopper (3). A rack frame (97) is slidably connected to the lower part of the feed hopper (3). One end of the rack frame (97) is fixedly connected to the slide plate (92). The rack frame (97) meshes with the spur gear (95).

5. The river and lake bottom sediment treatment device as described in claim 4, characterized in that, It also includes a diffusion mechanism, which is disposed on the hollow tube (4). The diffusion mechanism is used to diffuse the discharged liquid bacteria. The elbow rotating tube (101) is rotatably connected to the guide tube (75). The elbow rotating tube (101) passes through the disc (6). A gear one (102) is fixedly connected to the upper end of the elbow rotating tube (101). A gear two (103) is fixedly connected to the upper end of the threaded rod (82). The gear one (102) and the gear two (103) mesh.

6. The river and lake bottom sediment treatment device as described in claim 5, characterized in that, The lower end of the elbow rotary tube (101) is bent.

7. The river and lake bottom sediment treatment device as described in claim 6, characterized in that, It also includes a pressing mechanism, which is set inside the feed hopper (3). The pressing mechanism is used to squeeze the liquid bacteria in the feed hopper (3) so that the liquid bacteria in the feed hopper can be discharged from the hollow tube (4) more quickly. The pressing mechanism includes a one-way coupling (110), which is fixedly connected to the upper end of the hexagonal rod (81). A two-way screw (111) is fixedly connected to the one-way coupling (110). A pressing frame (113) is slidably connected to the feed hopper (3). A one-way valve (114) is fixedly connected to the lower part of the pressing frame (113). A two-way nut (112) is fixedly connected to the upper end of the pressing frame (113). The two-way nut (112) and the two-way screw (111) are connected by threads.

8. The river and lake bottom sediment treatment device as described in claim 7, characterized in that, It also includes a rubber ring (12), which is fixedly connected to the lower part of the lower pressure frame (113).

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