Quantitative feeding and mixing device and method for sludge in silty clay for embankment filling

Abstract

The invention discloses a quantitative feeding and mixing device and method for sludge in silty clay for embankment filling. The quantitative feeding and mixing device comprises a base, a stirring barrel is fixedly arranged on the base, a top cover covers the stirring barrel, at least two input pipes are arranged on the top cover, a middle temporary storage body is arranged in the stirring barrel, and a bottom plate is arranged at the bottom of the middle temporary storage body; a stirring shaft is arranged at the bottom of the bottom plate, and the bottom of the stirring shaft penetrates through the bottom of the stirring barrel through a sealing bearing, so that the purpose of demand-on-demand is achieved, slow discharging is directly conducted when needed, the effect of immediately discharging is achieved, immediate stopping can also be achieved, and the stopped silty clay and sludge are not mixed; the situation that materials are wasted too much or need to be mixed again due to the fact that the materials are stirred in advance is avoided, and on the premise that the quality, safety and other basic requirements are guaranteed by mixing the silty clay and the sludge, through scientific management and technical progress, resources are saved to the maximum extent, and construction activities which have negative influences on the environment are reduced to the maximum extent.

Description

Technical Field

[0001] The present invention belongs to the technical field of levee filling, and particularly relates to a device and method for quantitatively supplying and mixing silt in silty clay for levee filling. Background Art

[0002] River levees, as the core barrier of the flood control system and the safety of high-water-level water conveyance, play a decisive role in the stable operation of the water conservancy system. In response to typical instability forms such as overtopping and breaching, seepage piping, and slope sliding commonly existing in soil levees, systematic defense strategies have been formed in current engineering practices. Especially in the reinforcement projects for historical river levees, the control of earthwork filling technology has become a key link in quality control. It is urgent to construct a full-process levee quality assurance mechanism through the deep integration of construction technology innovation, process parameter optimization, and quality traceability system. For earthwork filling, the preferred material is silty clay: (1) It has outstanding anti-seepage performance. Its clay particle content is moderate, usually controlled between 15% and 30%. It can form a dense structure to block water seepage (the seepage coefficient can be reduced to the order of 1×10 -5 cm / s), and it also avoids the difficulty of construction compaction caused by too high clay particle content in pure clay. However, a large amount of soil materials are required during the levee filling process, but in actual work, soil material resources are relatively scarce. Most levee filling design schemes adopt the method of excavating nearby channel soil for levee construction. The excavated channel soil includes silty clay, silt, etc., and most of the channel soil is mainly silt. For large-scale levee filling projects, the excavated silty clay volume on-site is not enough to support large-scale levee filling, and it is necessary to purchase silty clay volume from outside. The silt in the excavated channel soil on-site needs to be treated, either by silt solidification or transportation, which is a large expense. The present invention fully combines a large amount of silt excavated on-site for silt reuse, quantitatively mixes silt into the filling material silty clay, so that the anti-seepage performance and compaction performance of the mixture meet the on-site filling requirements. By quantitatively mixing silt into the filling material silty clay, the silt treatment cost is saved, as well as the cost of purchasing a large amount of silty clay from outside, greatly saving the project cost, and the project quality meets the design requirements, ensuring the quality;

[0003] In order to achieve appropriate requirements for the existing quantitative mixing of silt in the filling material silty clay, quantitative ratio mixing is required. During the mixing process, due to the large demand, a large amount needs to be mixed in advance, which is extremely easy to cause waste. Generally, workers mix more to prevent shortages, but in the construction process, the actual situation changes frequently, resulting in workers being unable to accurately understand the demand, resulting in over-quantity waste and re-mixing due to shortages, affecting the construction efficiency and reducing the work efficiency and progress. There is a lack of a mixing device that can quantitatively supply and use immediately while ensuring uniform mixing. Summary of the Invention

[0004] The object of the present invention is to provide a device and method for quantitatively feeding and mixing silt in silty clay for levee filling to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solution: A device for quantitatively feeding and mixing silt in silty clay for levee filling, including a base, a mixing barrel is fixedly arranged on the base, a top cover is arranged on the mixing barrel, at least two input pipes are arranged on the top cover, an intermediate storage body is arranged inside the mixing barrel, a bottom plate is arranged at the bottom of the intermediate storage body, a stirring shaft is arranged at the bottom of the bottom plate and the bottom of the stirring shaft passes through the bottom of the mixing barrel through a sealed bearing, and one end of the stirring shaft passing through the bottom of the mixing barrel is externally connected to a motor for driving the stirring shaft to stir;

[0006] Two diversion channels are opened inside the intermediate storage body, and the materials poured into by the above two input pipes are received and diverted through the two diversion channels;

[0007] The stirring shaft includes a stirring rod body and a connecting column, and the stirring rod body is connected to the bottom plate through a bearing. The top of the connecting column is fixedly connected to the bottom of the bottom plate, and two connecting rods are fixedly connected to the connecting column. One end of each of the two connecting rods is provided with a blade. The central axis of the blade passes through the bottom of the connecting rod and is drivingly connected to a motor three. The two blades are respectively located directly below the two diversion channels to instantaneously disperse the falling materials.

[0008] Preferably, a plurality of springs are fixedly connected between the bottom plate and the bottom of the intermediate storage body. The bottom of the diversion channel on the intermediate storage body is communicated with directly above the blade at the bottom of the bottom plate through a telescopic hose. A touch switch is also arranged on the bottom plate to sink and trigger the touch switch when the materials in the diversion channel accumulate too much;

[0009] A rectangular rod is fixedly connected to the output shaft of the blade. A spiral blade is sleeved on the top of the rectangular rod. The spiral blade is located above the diversion channel. The spiral blade and the rectangular rod are slidably sleeved in a rectangular shape through a rectangular groove. Electromagnets are arranged at the top end inside the rectangular groove and at one end of the rectangular rod extending to the rectangular rod. The adsorption force and repulsion force are realized by adjusting the current direction of the electromagnets. The electromagnets are electrically connected to the touch switch.

[0010] Preferably, a spray head is fixedly arranged on one side of the bottom of the bottom plate. The top of the spray head extends outside the mixing barrel through a connecting pipe and is connected to a high-pressure air pump for supplying air. The bottom plate is above the horizontal line of the blade to blow the materials scattered on the inner wall of the mixing barrel to the bottom for centralized stirring by high pressure.

[0011] Preferably, the top cover comprises a middle block fixedly connected to the input pipe, an outer side of the middle block is movably connected to a mounting outer ring via a bearing, and a bottom of the mounting outer ring is connected to a mounting ring bearing.

[0012] Preferably, the mounting ring is arranged between the top cover and the mixing barrel and is movably connected to the top cover and the mixing barrel respectively through a sealed bearing, a gear ring is processed on the outer side of the mounting ring, two guide plates are arranged inside the mounting ring, a gear is meshingly connected on the outer side of the gear ring, a second motor is arranged at the bottom of the gear and the second motor is connected to the gear transmission through an output shaft.

[0013] Preferably, the two guide plates gradually decrease from the edge of the mounting ring to the center and the arc length at the edge of the mounting ring occupies one quarter of the inner diameter of the mounting ring, and the two guide plates are symmetrical about the center of the circle, and during the rotation of the guide plates, the materials poured into the two input pipes are continuously guided into the guide grooves at the bottom of each other.

[0014] Preferably, a vent hole is provided on one side of the top of the mixing barrel, an output pipe is provided at the bottom of the mixing barrel for material discharge, and a delivery pump is provided on the input pipe.

[0015] A method for using a device for quantitatively feeding and mixing silt in silty clay for dike filling, the specific steps are as follows:

[0016] S1. The staff determines the mixing ratio between the materials in advance, that is, the mixing ratio between silty clay and silt, and then controls the delivery power of the delivery pumps on the two input pipes to achieve quantitative delivery to the inside of the mixing barrel;

[0017] S2, the silty clay and silt transported to the inside of the mixing barrel through the two input pipes flow into the two guide grooves respectively, during which the motor and motor 3 at the bottom of the mixing shaft are started, and the silty clay and silt guided to the bottom of the bottom plate through the guide groove are respectively scattered onto the inner wall of the mixing barrel by the rotation of the two blades, and during the spreading process, the rotation and spreading of the two blades will cause collision and mixing between the silty clay and the silt, so as to increase the mixing uniformity;

[0018] S3. By using the high-pressure air pump and nozzle, the silty clay and silt mixture on the inner wall of the mixing barrel can be transported downward at high pressure until it is transported to the mixing shaft area and further mixed by the mixing shaft. During the process, the cross-impact mixing of the two blades makes the mixing more uniform. Finally, the mixing shaft is used for centralized mixing until it is discharged through the output pipe, achieving the purpose of on-demand and on-demand without the need for advance mixing.

[0019] Technical effects and advantages of the present invention: 1. During the process, due to the cross-impact mixing of the two blades, the mixing is more uniform. Finally, centralized mixing is carried out by using the stirring shaft until it is discharged through the output pipe, achieving the purpose of immediate use. There is no need for pre-stirring. When needed, it can be directly softened and the effect of immediate discharging can be achieved, and it can also be stopped immediately. After stopping, the silty clay and silt are not mixed, and there will be no problem that excessive waste or insufficient amount of materials occurs due to actual situations caused by pre-stirring, resulting in reduced efficiency. The present invention can mix as needed, that is, mix as much as needed, and it is an online continuous and uninterrupted mixing, with high efficiency and no problem of excessive or insufficient amount. And when mixing silty clay and silt, on the premise of ensuring basic requirements such as quality and safety, through scientific management and technological progress, construction activities that maximize resource conservation and reduce negative impacts on the environment are carried out, truly achieving green construction;

[0020] 2. The rotation of the installation ring drives the guide plate to rotate, and during the rotation process, the guide plate will intermittently be at the bottom of the input pipe, that is, it shows that the materials at the bottom of the input pipe are intermittently guided to the bottom of the other guide groove by the guide plate and then discharged. This setting can, on the basis of impact mixing and scattering, continuously change the materials scattered by the blades, so that the material layer formed by the materials scattered by each blade on the inner wall of the mixing barrel is continuously changed, realizing the layer-by-layer mixing of silty clay and silt alternately. On the basis of the above mixing, the mixing effect is further enhanced, achieving a more uniform mixing effect than the physical mixing while realizing immediate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is a schematic internal structure diagram of the present invention;

[0023] Figure 3 is an exploded schematic diagram of the internal structure of the present invention;

[0024] Figure 4 is a schematic diagram of the structural relationship between the spiral blade and the intermediate storage body of the present invention;

[0025] Figure 5 is a schematic diagram of the installation structure of the touch switch of the present invention;

[0026] Figure 6 is a schematic diagram of the rectangular groove structure of the present invention.

[0027] In the figure: 1. Output pipe; 2. Base; 3. Stirring barrel; 4. High-pressure air pump; 5. Installation ring; 6. Top cover; 601. Intermediate block; 602. Installation outer ring; 7. Gear; 8. Second motor; 9. Input pipe; 10. Intermediate temporary storage body; 11. Blade; 12. Bottom plate; 13. Stirring shaft; 1301. Stirring rod body; 1302. Connecting column; 14. Gear ring; 15. Deflector; 16. Deflection groove; 17. Helical blade; 18. Tactile switch; 19. Spring; 20. Flexible hose; 21. Rectangular rod; 22. Rectangular groove; 23. Third motor; 24. Connecting rod; 25. Sprayer. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] The present invention provides a quantitative feeding and mixing device for silt in silty clay for levee filling as shown in Figures 1 - 6 which includes a base 2. A stirring barrel 3 is fixedly arranged on the base 2. A top cover 6 is covered on the stirring barrel 3. At least two input pipes 9 are arranged on the top cover 6. An intermediate temporary storage body 10 is arranged inside the stirring barrel 3. A bottom plate 12 is arranged at the bottom of the intermediate temporary storage body 10. A stirring shaft 13 is arranged at the bottom of the bottom plate 12 and the bottom of the stirring shaft 13 penetrates through the bottom of the stirring barrel 3 through a sealing bearing. One end of the stirring shaft 13 penetrating through the bottom of the stirring barrel 3 is externally connected to a motor (the installation and connection manner between the motor and the stirring shaft 13 here is a prior art, so it is not shown in the figure) for driving the stirring shaft 13 to stir;

[0030] Two deflection grooves 16 are opened inside the intermediate temporary storage body 10 and the materials poured into the above two input pipes 9 are received and deflected through the two deflection grooves 16;

[0031] The stirring shaft 13 includes a stirring rod body 1301 and a connecting column 1302 and the stirring rod body 1301 is connected to the bottom plate 12 through a bearing. The top of the connecting column 1302 is fixedly connected to the bottom of the bottom plate 12 and two connecting rods 24 are fixedly connected to the connecting column 1302. One end of each of the two connecting rods 24 is provided with a blade 11. The central axis of the blade 11 penetrates through the bottom of the connecting rod 24 and is drivingly connected to a third motor 23. The positions of the two blades 11 are respectively directly below the two deflection grooves 16 to instantly disperse the falling materials.

[0032] Specifically, a plurality of springs 19 are fixedly connected to the bottom of the bottom plate 12 and the bottom of the intermediate temporary storage body 10. The bottom of the diversion groove 16 on the intermediate temporary storage body 10 is connected to the upper part directly above the blade 11 at the bottom of the bottom plate 12 through a telescopic hose 20. A touch switch 18 is also arranged on the bottom plate 12 and sinks to trigger the touch switch 18 when too much material accumulates in the diversion groove 16;

[0033] A rectangular rod 21 is fixedly connected to the output shaft of the blade 11. A spiral blade 17 is sleeved on the top of the rectangular rod 21. The spiral blade 17 is located above the diversion groove 16. A rectangular sliding socket connection is realized between the spiral blade 17 and the rectangular rod 21 through a rectangular groove 22. Electromagnets are arranged at the inner top end of the rectangular groove 22 and at the end of the rectangular rod 21 extending to one end of the rectangular rod 21, and the adsorption force and repulsion force are adjusted by adjusting the current direction of the electromagnets. The electromagnets are electrically connected to the touch switch 18.

[0034] Specifically, a spray head 25 is fixedly arranged on one side of the bottom of the bottom plate 12. The top of the spray head 25 extends out of the outside of the mixing barrel 3 through a connecting pipe and is connected to a high-pressure air pump 4 for air supply. The bottom plate 12 is above the horizontal line of the blade 11 to blow the material scattered on the inner wall of the mixing barrel 3 to the bottom for centralized mixing by high pressure. A ventilation hole is arranged on one side of the top of the mixing barrel 3, and an output pipe 1 is arranged at the bottom of the mixing barrel 3 for discharging materials. A delivery pump is arranged on the input pipe 9.

[0035] Example 1: The staff determines the mixing ratio between materials in advance, that is, the mixing ratio between silty clay and silt. Then, the conveying power of the pumps on the two input pipes 9 is controlled to achieve the quantitative proportional conveying into the mixing barrel 3. The silty clay and silt conveyed into the mixing barrel 3 through the two input pipes 9 respectively flow into the two diversion channels 16. During this period, the motor at the bottom of the mixing shaft 13 and the motor three 23 are started. The silty clay and silt flowing to the bottom of the bottom plate 12 after being diverted by the diversion channels 16 are respectively scattered onto the inner wall of the mixing barrel 3 by the rotation of the two blades 11. And during the scattering process, the rotation and scattering of the two blades 11 will cause the impact mixing between the silty clay and silt, so as to increase the mixing uniformity. By setting the high-pressure air pump 4 and the nozzle 25, the mixture of silty clay and silt on the inner wall of the mixing barrel 3 can be conveyed downward under high pressure until it is conveyed to the area of the mixing shaft 13 and further mixed by the mixing shaft 13. During the process, due to the cross-impact mixing of the two blades 11, the mixture is more uniform. Finally, the mixture is further mixed centrally by the mixing shaft 13 until it is discharged through the output pipe 1, achieving the purpose of immediate use. There is no need for pre-mixing. When needed, it can be directly moderated and the effect of immediate discharging can be achieved, and it can also be stopped immediately. After stopping, the silty clay and silt are not mixed, and there will be no problem that the materials are wasted too much or too little due to actual situations caused by pre-mixing and need to be remixed, resulting in reduced efficiency. The present invention can mix as needed, that is, mix as much as needed, and it is an online continuous and uninterrupted mixing, with high efficiency and no problem of too much or too little;

[0036] The top cover 6 includes an intermediate block 601 fixedly connected to the input pipe 9. The outer side of the intermediate block 601 is movably connected with an installation outer ring 602 through a bearing. The bottom of the installation outer ring 602 is connected to the installation ring 5 through a bearing. The installation ring 5 is arranged between the top cover 6 and the mixing barrel 3 and is movably connected to the top cover 6 and the mixing barrel 3 respectively through a sealed bearing. A gear ring 14 is processed on the outer side of the installation ring 5. Two diversion plates 15 are arranged inside the installation ring 5. The outer side of the gear ring 14 is meshed with a gear 7. The bottom of the gear 7 is provided with a motor two 8 and the motor two 8 is in transmission connection with the gear 7 through an output shaft. The two diversion plates 15 gradually decrease from the edge of the installation ring 5 towards the center, and the arc length at the edge of the installation ring 5 accounts for one-fourth of the inner diameter of the installation ring 5. And the two diversion plates 15 are symmetric about the center of the circle. During the rotation of the diversion plates 15, the materials poured into the two input pipes 9 are continuously diverted to the diversion channels 16 at the bottom of each other;

[0037] Specific implementation method: In the construction of filling and compaction of Hong soil for a newly built dike, the soil used for the dike mainly adopts the excavated waste soil from the Hong channel. The soil layers excavated from the river channel mainly involve cohesive soil, less cohesive soil, soft cohesive soil, soft plastic - plastic cohesive soil, and silt soft soil, etc. According to the corresponding requirements, the soil used for dike filling should select the soil layer that meets the dike building materials and dike building standards. The moisture content of the soil excavated from the Hong channel is on the high side and is not suitable to be directly used as the soil for dike body filling. Before use, each layer of soil needs to be fully sun-dried to reach near the optimal moisture content. For cohesive soil, it is necessary to strengthen the breaking of soil clods and compaction.

[0038] The soil used for on-site dike filling is silty clay, and its basic physical properties are: moisture content is 27.7%, wet density is 1.87 g / cm3, dry density is 1.46 g / cm3, specific gravity of soil particles is 2.74, void ratio is 0.871, saturation is 87.1%, liquid limit is 41.0%, plastic limit is 21.7%, plasticity index is 19.3, and liquidity index is 0.31. The demand for soil for this newly built dike filling project is large, but the amount of excavated waste soil from the on-site Hong channel is limited and cannot meet the amount of silty clay required for on-site filling. A large amount needs to be purchased from the soil material yard, and the market price is about 50 yuan per cubic meter, and the soil material cost is about tens of millions of yuan. Therefore, fully combining the large amount of silt resources on-site, the basic physical properties of the silt excavated on-site are: moisture content is 44.8%, wet density is 1.75 g / cm3, dry density is 1.21 g / cm3, specific gravity of soil particles is 2.74, void ratio is 1.267, saturation is 96.9%, liquid limit is 40.6%, plastic limit is 21.3%, plasticity index is 19.3, and liquidity index is 1.22.

[0039] Indoor tests were carried out on silty clay with different silt contents, and the contents were 5%, 10%, 15%, 20%, and 25% respectively. After data collation, it was found that the strength and permeability coefficient increased with the increase of silt content; when the silt content reached a certain value, the strength and permeability coefficient reached the maximum value. At this time, if the silt content continued to increase, it would instead cause the decrease of strength and permeability coefficient. According to the least squares method to fit the curve, it was obtained that the physical properties of the mixed soil with a silt content of 16.5% were the best and more in line with the design requirements of the on-site filling material. Compaction tests were carried out on the mixed soil. According to the results of indoor compaction tests, the optimal moisture content of the soil sample for this compaction test was determined to be 17.4%, and the maximum dry density was 1.64 g / cm 3 . Using this device to mix 15% silt in the silty clay used for filling, as the filling material for this dike filling, on the one hand, it greatly saves the cost of purchasing silty clay, and on the other hand, it also solves the problem of waste silt treatment, and has high application value;

[0040] Embodiment 2: On the basis of Embodiment 1, through the settings of the mounting ring 5, gear ring 14 and deflector 15, starting the second motor 8 drives the mounting ring 5 to rotate, and the rotation of the mounting ring 5 drives the deflector 15 to rotate. During the rotation process, the deflector 15 will intermittently be at the bottom of the input pipe 9, that is, it shows that the materials at the bottom of the input pipe 9 are intermittently diverted to the bottom of the other diversion groove 16 by the deflector 15 and then discharged. This setting can, on the basis of scattering and impact mixing, continuously change the materials scattered by the blades 11, so that the material layer formed by the materials scattered by each blade 11 on the inner wall of the mixing barrel 3 is continuously changed, realizing the alternating mixing of silty clay and silt layer by layer. On the basis of the above mixing, the mixing effect is further enhanced, achieving a more uniform mixing effect than the physical mixing effect on the basis of realizing immediate use, which is convenient and practical;

[0041] Embodiment 3: By using the settings of the spring 19, touch switch 18 and spiral blade 17, when the material demand is large and urgent, the input volume of the input pipe 9 can be increased, which can increase the accumulation amount at the top of the diversion groove 16. Using the increase in the accumulation amount to press the spring 19 until the touch switch 18 is triggered, and then controlling the electromagnets inside the rectangular groove 22 and at the top of the rectangular rod 21 to change from repulsive force to adsorption force. During the process of repulsive force, the spiral blade 17 will move upward due to the repulsive force and be at the bottom of the diversion groove 16 and inside the telescopic hose 20 placed at the bottom of the diversion groove 16. After changing to adsorption force, it moves downward in distance, making the spiral blade 17 inside the telescopic hose 20, realizing the purpose of accelerating the transportation by using the rotation of the spiral blade 17 on the basis of natural diversion at the bottom of the diversion groove 16;

[0042] When the spiral blade 17 does not need to accelerate the transportation, it can also pre-mix the materials entering the diversion groove 16 at the top of the diversion groove 16. The whole process realizes the effect of immediate use on the premise of ensuring the mixing uniformity, and can be paused at any time without any waste, and there will be no situation of excessive or insufficient mixing.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quantitative feeding and mixing device for silt in silty clay used for levee filling, comprising a base, a stirring barrel fixedly arranged on the base, a top cover is arranged on the stirring barrel, and at least two input pipes are arranged on the top cover, and it is characterized in that: Inside the mixing barrel, an intermediate storage body is provided. At the bottom of the intermediate storage body, a bottom plate is provided. At the bottom of the bottom plate, a stirring shaft is provided, and the bottom end of the stirring shaft passes through the bottom of the mixing barrel through a sealed bearing. The end of the stirring shaft passing through the bottom of the mixing barrel is externally connected to a motor for driving the stirring shaft to stir. Inside the intermediate storage body, two diversion channels are provided, and the materials poured into the above two input pipes are received and diverted through the two diversion channels. The stirring shaft includes a stirring rod body and a connecting column, and the stirring rod body is connected to the bottom plate through a bearing. The top of the connecting column is fixedly connected to the bottom of the bottom plate, and two connecting rods are fixedly connected to the connecting column. At one end of each of the two connecting rods, a blade is provided. The central axis of the blade passes through the bottom of the connecting rod and is drivingly connected to a motor three. The two blades are respectively located directly below the two diversion channels to instantaneously disperse the falling materials.

2. The quantitative feeding and mixing device for silt in silty clay used for levee filling according to the claim is characterized in that: A number of springs are fixedly connected between the bottom plate and the bottom of the intermediate storage body. The bottom of the diversion channel on the intermediate storage body is communicated with directly above the blade at the bottom of the bottom plate through a telescopic hose. A touch switch is also provided on the bottom plate to sink and trigger the touch switch when the materials in the diversion channel accumulate too much. A rectangular rod is fixedly connected to the output shaft of the blade. A spiral blade is sleeved on the top of the rectangular rod. The spiral blade is located above the diversion channel. The spiral blade and the rectangular rod are slidably sleeved in a rectangular shape through a rectangular groove. Electromagnets are provided at the top end inside the rectangular groove and at one end of the rectangular rod extending to the rectangular rod. The adsorption force and repulsion force are realized by adjusting the current direction of the electromagnets. The electromagnets are electrically connected to the touch switch.

3. The quantitative feeding and mixing device for silt in silty clay used for levee filling according to the claim is characterized in that: On one side at the bottom of the bottom plate, a spray head is fixedly provided. The top of the spray head extends out of the mixing barrel through a connecting pipe and is connected to a high-pressure air pump for air supply. The bottom plate is above the horizontal line of the blade to blow the materials scattered on the inner wall of the mixing barrel to the bottom for centralized stirring with high pressure.

4. A silt quantitative feeding and mixing device for silty clay used in levee filling, characterized in that: The top cover includes an intermediate block fixedly connected to the input pipe. The outer side of the intermediate block is movably connected to an installation outer ring through a bearing. The bottom of the installation outer ring is connected to the installation ring through a bearing.

5. The quantitative feeding and mixing device for silt in silty clay used for levee filling according to the claim is characterized in that: The installation ring is arranged between the top cover and the mixing barrel and is movably connected to the top cover and the mixing barrel respectively through sealed bearings. A gear ring is machined on the outer side of the installation ring. Two diversion plates are arranged inside the installation ring. The gear ring is externally meshed with a gear. A motor two is provided at the bottom of the gear, and the motor two is drivingly connected to the gear through an output shaft.

6. The quantitative feeding and mixing device for silt in silty clay used for levee filling according to the claim is characterized in that: The two diversion plates gradually decrease from the edge of the installation ring towards the center, and the arc length at the edge of the installation ring accounts for one-fourth of the inner diameter of the installation ring. The two diversion plates are symmetric about the center of the circle. During the rotation of the diversion plates, the materials poured into the two input pipes are continuously diverted to the diversion channels at the bottom of each other.

7. A silt quantitative feeding and mixing device for silty clay used in levee filling, characterized in that: One side at the top of the mixing barrel is provided with a ventilation hole. The bottom of the mixing barrel is provided with an output pipe for discharging materials. A delivery pump is provided on the input pipe.

8. The usage method of a quantitative feeding and mixing device for silt in silty clay used for levee filling according to the claim, characterized in that: The specific steps are as follows: S1. Determine in advance the mixing ratio between materials by the staff, that is, the mixing ratio between silty clay and silt, and then control the conveying power of the conveying pumps on the two input pipes to achieve the quantitative proportional conveyance into the mixing barrel; S2. The silty clay and silt conveyed into the mixing barrel through the two input pipes respectively flow into the two diversion channels. During this period, start the motor and motor three at the bottom of the mixing shaft. The silty clay and silt flowing to the bottom of the bottom plate after being diverted by the diversion channels are respectively scattered onto the inner wall of the mixing barrel by the rotation of the two blades. And during the scattering process, the rotation and scattering of the two blades will cause the impact mixing between the silty clay and silt to increase the mixing uniformity; S3. By setting the high-pressure air pump and nozzle, the mixture of silty clay and silt on the inner wall of the mixing barrel can be conveyed downward under high pressure until it is conveyed to the mixing shaft area for further mixing. During the process, due to the cross-impact mixing of the two blades, the mixture becomes more uniform. Finally, it is further mixed by the mixing shaft until it is discharged through the output pipe, achieving the purpose of immediate need without prior mixing.

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