System for preparing flow-state solidified soil on line from high-water-content muck

Abstract

The invention discloses a system for on-line preparation of fluid solidified soil from high-water-content muck, which comprises a dispersion stirrer, a screening and crushing all-in-one machine arranged below the dispersion stirrer, a slurry storage box arranged below the screening and crushing all-in-one machine, a stirring mechanism arranged in the slurry storage box, and a slurry supply pipe communicated with a shunt pipe of a mixer, the two ends of the flow dividing pipe communicate with mixing branch pipes correspondingly, the mixing branch pipes communicate with the middle storage tank through powder supply pipes, a first air spraying pipe communicates with the interior of the middle storage tank, and the two mixing branch pipes communicate with the mixing pipe. The screening and crushing all-in-one machine is used for discharging the slurry to the slurry storage box and conveying the crushed hard blocks to the slurry storage box. Compared with the prior art, the system has the advantages that the slag can be fluidized and refined through the dispersing stirrer and the screening and crushing all-in-one machine, the requirement for raw materials is lowered, and then the slurry storage box is used for buffering and then is matched with the mixer and the powder supply mechanism to achieve online mixing of the flow-state solidified soil.

Description

Technical Field

[0001] The present invention relates to the technical field of slag slurrying, and in particular to an online system for preparing fluidized solidified soil from slag with high moisture content. Background Art

[0002] During the production process of fluidized filling materials using high-moisture content slag, the slag must be refined, fluidized, and mixed with admixtures to create a fluidized filling slurry. Currently, the preparation of fluidized filling slurry mostly uses discrete, fine-particle slag. The slag is first refined in a crusher, then fluidized by mechanical mixing equipment. Mixing with admixtures occurs during the fluidization process, and the degree of uniformity depends on the mixing time and structural characteristics of the mixing machinery. Existing equipment and production lines crush the slag before mixing. High-moisture content slag inherently exhibits poor discreteness, requiring water reduction during crushing. This creates high raw material requirements and significantly reduces production efficiency. During the production process of fluidized filling materials, the fluidized clay slurry must be mixed with multiple admixtures to achieve a usable fluidized filling slurry of a certain concentration. Furthermore, fluidized solidified soil is currently typically mixed by adding reagents to a mechanical mixing machine or by hydraulic circulation pumping. Mechanical mixing is inefficient for high-concentration solid-liquid mixing, and achieving uniformity in a short period of time is difficult. Hydraulic circulation pumping provides adequate mixing, but the equipment takes up a lot of space and is inefficient. Both methods operate intermittently, pumping the mixture out after stirring. This prevents a continuous supply of fluidized finished slurry, making it difficult to meet the needs of various scenarios. Summary of the Invention

[0003] The present invention provides an online system for preparing fluidized solidified soil from high-moisture content slag, which is used to solve the problems of high raw material requirements, multiple raw material pre-processing steps and intermittent production methods in existing equipment when producing fluidized solidified soil.

[0004] The present invention provides an online fluidized solidified soil preparation system for high-water content slag, comprising a disperser, a disperser, a screening and crushing integrated machine, a slurry storage box, a stirring mechanism, the slurry storage box is connected to a branch pipe of a mixer through a slurry supply pipe, both ends of the branch pipe are connected to a mixing branch pipe, the mixing branch pipe is connected to an intermediate storage tank through a powder supply pipe, the intermediate storage tank is connected to a first injection pipe, the powder supply pipe is connected to a second injection pipe, the two mixing branches are both connected to the mixing pipe, the mixing pipe is connected to a quantitative water supply mechanism through a first water supply pipe, a first density meter is provided at the outlet end of the mixing pipe, and a second density meter is provided on the slurry supply pipe or the branch pipe; the disperser is used to disperse and stir the slag containing water and hard blocks, the screening and crushing integrated machine is used to discharge the slurry to the slurry storage box and crush the hard blocks and then transport them to the slurry storage box.

[0005] Preferably, the disperser includes: a mixing drum, a power device and a gear device, a first mixing shaft and a second mixing shaft are rotatably arranged on the gear device, the first mixing shaft is provided with obliquely distributed side wings, the side wings are provided with wing feathers, a plurality of flexible vertical shafts are fixed on the first mixing shaft, a plurality of rope drums are fixed on the second mixing shaft along its height direction, a plurality of flexible horizontal shafts are fixed on the rope drum, a differentiation head is provided on the front end of the flexible horizontal shaft, a plurality of differentiation plates are spaced apart on the flexible horizontal shaft between the differentiation head and the rope drum, and the power device drives the first mixing shaft and the second mixing shaft to rotate through the gear device, and drives the first mixing shaft and the second mixing shaft to rotate around the central axis of the mixing drum.

[0006] Preferably, the screening and crushing machine includes a screening box, a crushing roller is rotatably arranged in the screening box, a screen cage roller is rotatably arranged between the crushing roller and the inner wall of the screening box, the screen cage roller is provided with a slurry drop hole for slurry to pass through, the crushing roller and the screen cage roller on the same side have opposite rotation directions, the top of the screen cage roller is located above the crushing roller, and an abrasive jet nozzle is provided above the crushing roller, the first inlet of the abrasive jet nozzle is connected to the upper layer of the slurry storage box through a slurry pump, the second inlet of the abrasive jet nozzle is connected to the middle layer of the slurry storage box through a pipeline, and the nozzle of the abrasive jet nozzle is facing the gap between the two crushing rollers.

[0007] Preferably, the screen cage roller includes two support rings, which are fixed to the first rotating shaft through support plates. A plurality of connecting plates are fixed between the two support rings, and the pulp drop holes are distributed between the two connecting plates.

[0008] Preferably, the middle layer and the upper layer of the slurry storage box are provided with filter screens, and the filter screens are arranged between the discharge port of the screening box and the liquid outlet of the slurry storage box, and the liquid outlet of the slurry storage box is connected to the abrasive jet nozzle.

[0009] Preferably, the cage roller is located obliquely above the crushing roller.

[0010] Preferably, it also includes a first water supply tank, which is connected to the disperser through a first water supply pipe, and a first water supply pump is provided on the first water supply pipe; the first water supply pipe is connected to a first water pipe, and the first water pipe is provided between the slurry storage box and the first water supply pump.

[0011] Preferably, an air pump is further included, and the air pump is connected to the first air injection pipe and the second air injection pipe respectively.

[0012] Preferably, a first control valve is provided on the powder supply pipe between the air outlet of the second air injection pipe and the intermediate storage tank.

[0013] Preferably, the quantitative water replenishment mechanism includes a second water replenishment tank, the second water replenishment tank is connected to the mixing pipe through a second water replenishment pipe, and the second water replenishment pipe is provided with a second control valve, a second water replenishment pump and a flow meter.

[0014] Preferably, the horizontal position of the diversion pipe is higher than the horizontal position of the mixing branch pipe.

[0015] Compared with the prior art, in the present invention, the slag enters the disperser for dispersion and mixing. The system replenishes water to the slag in the disperser through a first water supply pump according to the moisture content of the slag. After fluidization treatment by the disperser, the slag falls into the screening box below. The slurry and small particles fall into the slurry storage box from the screen rollers on both sides. The crushing rollers crush the large particles above them and the large particles transported by the screen rollers. The crushed small particles and slurry fall into the slurry storage box below. The disperser and the screening and crushing machine cooperate to achieve the refinement and fluidization of the slag, and the slurry storage box buffers the slurry. The slurry in the slurry storage box is transported to the diversion pipe by a slurry pump. After being diverted by the diversion pipe, the slurry enters two mixing branches. The powder supply mechanism transports the powder to the mixing branch through compressed air. Under the suction action of the slurry, the powder is mixed online with the raw material slurry. The raw materials of the mixed powder are then mixed again in the mixing pipe, thereby ensuring the mixing effect of the solidified soil slurry. During the mixing process, the first density meter cooperates with the quantitative water replenishment mechanism, and the second density meter cooperates with the powder supply mechanism to ensure the mixing quality of the solidified soil slurry, and solidified soil slurry with different agent contents can be provided at any time to meet the needs of various occasions. The present invention can fluidize and refine the slag containing water and hard lumps through the disperser mixer and the screening and crushing machine, reducing the requirements for raw materials, reducing the raw material processing steps, and improving the slag processing efficiency. Then, after caching in the slurry storage box, it cooperates with the mixer and the powder supply mechanism to achieve online mixing of fluidized solidified soil. Whether it is a small amount of solidified soil slurry or a large amount of solidified soil slurry, it can be quickly provided with good flexibility and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the mixer and powder feeding mechanism of the present invention;

[0019] Figure 3It is a structural schematic diagram of the screening and crushing integrated machine of the present invention;

[0020] Figure 4 It is a partial structural schematic diagram of the screening and crushing integrated machine of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the screen cage roller of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the dispersing mixer of the present invention;

[0023] Figure 7 This is a structural schematic diagram of the dispersing mixer of the present invention without the mixing cylinder;

[0024] Figure 8 This is a schematic structural diagram of the first stirring shaft of the present invention;

[0025] Figure 9 This is a schematic structural diagram of the second stirring shaft of the present invention.

[0026] Reference numerals:

[0027] 1. Disperser, 2. Screening and crushing machine, 3. Slurry storage box, 4. Stirring mechanism, 5. Mixer, 6. Slurry pump, 7. Admixture supply mechanism, 8. First water supply mechanism, 9. Quantitative water supply mechanism, 11. Mixing cylinder, 12. Power unit, 13. Gear unit, 14. First stirring shaft, 15. Second stirring shaft, 16. Side wings, 17. Wing feathers, 18. Flexible vertical shaft, 19. Rope drum, 020. Flexible horizontal shaft, 021. Differentiation head, 022. Differentiation plate, 21. Screening and crushing box, 22. Crushing roller, 23. Screen cage roller, 231. Slurry drop hole, 24. Abrasive jet nozzle, 25. Slurry pump, 232. Support ring, 233. Support plate, 234. First rotating shaft, 235. Connecting plate, 51. Diverter pipe, 52. Mixing branch pipe, 53. Mixing pipe, 71. Air pump, 72. Intermediate storage tank, 73. Powder supply pipe, 74. First injection pipe, 75. Second injection pipe, 76. First control valve, 81. First water supply tank, 82. First water supply pipe, 83. First water supply pump, 84. First water pipe, 91. Second water supply pipe, 92. Second water supply tank, 93. Second water supply pump, 94. Flow meter, 95. Second control valve, 100. Filter, 200. First density meter, 300. Second density meter. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0029] Refer to the attached Figure 1 The present invention provides an online system for preparing fluidized solidified soil from high-water content slag, comprising a disperser mixer 1, a screening and crushing integrated machine 2 being provided below the discharge port of the disperser mixer 1, a slurry storage box 3 being provided below the discharge port of the screening and crushing integrated machine 2, a stirring mechanism 4 being provided in the slurry storage box 3, the slurry storage box 3 being connected to a diverter pipe 51 of a mixer 5 through a slurry supply pipe, and the like. Figure 2The slurry supply pipe is provided with a slurry pump 6, which pumps the slurry in the slurry storage box 3 into the mixer 5. The two ends of the diversion pipe 51 are respectively connected with a mixing branch pipe 52. The mixing branch pipe 52 is connected to the intermediate storage tank 72 through a powder supply pipe 73. The intermediate storage tank 72 is connected with a first jet pipe 74. The first jet pipe 74 jets the powder to fully mix the powder with the air in the intermediate storage tank 72 and increase the air pressure of the intermediate storage tank 72. The powder mixed with the air is transported to the mixing branch pipe 52 along the powder supply pipe 73 under air pressure. The powder supply pipe 73 is connected with a The second air jet pipe 75 and the two mixing branches 52 are both connected to the mixing pipe 53, which is connected to the quantitative water supply mechanism 9 through the first water supply pipe 82. The outlet end of the mixing pipe 53 is provided with a first density meter 200, and the slurry supply pipe or diversion pipe 51 is provided with a second density meter 300. The disperser 1 is used to disperse and stir the slag material containing water and hard lumps to obtain a slurry containing sticky lumps and hard lumps. The slurry falls into the screening and crushing integrated machine 2 through the discharge port. The screening and crushing integrated machine 2 is used to discharge the slurry into the slurry storage box 3 and crush the hard lumps and then transport them to the slurry storage box 3. In the present invention, the disperser 1 stirs and breaks up the slag material containing water and hard lumps, and then falls into the screening and crushing integrated machine 2 through the discharge port. The slurry and small particles are directly discharged into the slurry storage box 3. The hard lumps in the mud are crushed by the screening and crushing integrated machine 2 into small particles and fall into the slurry storage box 3 along with the slurry. The stirring mechanism 4 stirs the slurry in the slurry storage tank 3 to prevent slurry particles from settling and ensures that it can be mixed with admixtures online at any time to produce fluidized solidified soil. The slurry in the slurry storage tank 3 is continuously delivered to the diverter pipe 51 of the mixer 5 by the slurry pump 6. From there, the slurry flows into the two mixing branches 52. As the raw material slurry flows through the mixing branches 52, it draws powder and air from the powder supply pipe 73 into the mixing branches 52 for mixing. The mixture then converges in the mixing pipe 53 for further mixing, forming a high-quality finished fluidized filling slurry. During this process, the system adjusts the powder supply based on the measurement value of the first density meter 200. Specifically, the powder delivery rate is adjusted by adjusting the injection volume of the second injection pipe 75, thereby adjusting the agent content in the slurry. The system also adjusts the slurry concentration based on the measurement value of the second density meter 300. Specifically, when the slurry concentration exceeds the system design value, the quantitative water replenishment mechanism 9 adds a certain amount of water to the mixing pipe 53. The intermediate storage tank 72, powder supply pipe 73, first air jet pipe 74, and second air jet pipe 75 constitute the powder supply mechanism. In the present invention, the mixing branch pipe 52 draws the powder delivered by the powder supply mechanism to achieve in-line mixing, followed by further mixing within the mixing pipe 53. This structural design achieves in-line mixing while ensuring effective mixing. Secondly, the first densitometer 200, second densitometer 300, second air jet pipe 75, and quantitative water replenishment mechanism 9 cooperate to adjust the slurry concentration and agent content, thereby achieving in-line mixing while ensuring mixing quality.The present invention has low requirements for raw materials. High-water-content slag and lumps are directly dispersed and stirred, while low-water-content slag and lumps are directly dispersed and stirred after adding water, thereby improving the production efficiency of the system. The disperser mixer 1 and the screening and crushing integrated machine 2 can quickly break up and crush the slag containing water and lumps, achieving slag refinement and fluidization. The slurry is then sent to the slurry storage box 3 for buffering. The slurry pump 6 then transports the slurry to the diversion pipe 51 of the mixer 5. The mixing branch pipe 52 sucks away the powder delivered by the powder supply mechanism to achieve online mixing, and then remixes in the mixing pipe 53. This structural design achieves online mixing while ensuring the mixing effect. Secondly, the first density meter 200, the second density meter 300, the second air injection pipe 75 and the quantitative water replenishment mechanism 9 cooperate to adjust the slurry concentration and reagent content, thereby achieving online mixing while ensuring mixing quality. Thirdly, this system can flexibly provide solidified soil slurries with different amounts and reagent contents to meet the needs of various occasions.

[0030] An embodiment of the dispersing mixer 1: Figure 6 The disperser 1 includes a mixing drum 11, a power device 12 and a gear device 13. Figure 7 and attached Figure 8 The gear device 13 is provided with a first stirring shaft 14 and a second stirring shaft 15, the first stirring shaft 14 is provided with side wings 16 with inclined distribution, the side wings 16 are provided with wing feathers 17, and the first stirring shaft 14 is fixed with multiple flexible vertical shafts 18. Figure 9The second stirring shaft 15 is fixed with multiple rope drums 19 along its height direction, and multiple flexible horizontal shafts 020 are fixed on the rope drum 19. The front end of the flexible horizontal shaft 020 is provided with a differentiation head 021, and multiple differentiation plates 022 are arranged at intervals on the flexible horizontal shaft 020 between the differentiation head 021 and the rope drum 19. The power device 12 drives the first stirring shaft 14 and the second stirring shaft 15 to rotate through the gear device 13, and drives the first stirring shaft 14 and the second stirring shaft 15 to rotate around the central axis of the stirring cylinder 11, that is, the first stirring shaft 14 and the second stirring shaft 15 are planetary. The side wings 16 rotating around the first stirring shaft 14 drive the material to move up and down along its axis, and the wing feathers 17 distributed at various heights shear the material (including the material flipped upward by the side wings 16). The flexible vertical shaft 18 rotating around the first stirring shaft 14 stirs the sticky mass at the bottom of the stirring cylinder 11 multiple times to promote its dispersion and mixing with the medicine, and at the same time peels off the material adhering to the bottom lumps and participates in the stirring and mixing. The flexible horizontal shaft 020 rotating around the second stirring shaft 15 forcibly disperses the sticky mass with low hardness and strength through the differentiation head 021 and the differentiation plate 022, and at the same time scrapes off the adherent material on the large-volume lumps. During the stirring and dispersing process, the flexibility of the flexible vertical shaft 18 and the flexible horizontal shaft 020 enables them to smoothly slide over the hard lumps without being stuck by the hard lumps, and will not destroy the morphology of the hard lumps, thereby consuming unnecessary energy.

[0031] An embodiment of the screening and crushing machine 2: Figure 3 The screening and crushing machine 2 includes a screening and crushing box 21, a crushing roller 22 is rotatably provided in the screening and crushing box 21, a screen cage roller 23 is rotatably provided between the crushing roller 22 and the inner wall of the screening and crushing box 21, and a slurry drop hole 231 is provided on the screen cage roller 23 for the slurry to pass through. Figure 4The crushing roller 22 and the screen cage roller 23 on the same side rotate in opposite directions. The top of the screen cage roller 23 is located above the crushing roller 22. The slurry storage box 3 is distributed below the discharge port of the screening box 21. An abrasive jet nozzle 24 is provided above the crushing roller 22. The first inlet of the abrasive jet nozzle 24 is connected to the upper layer of the slurry storage box 3 through the slurry pump 25, and the second inlet of the abrasive jet nozzle 24 is connected to the middle layer of the slurry storage box 3 through a pipeline. The nozzle of the abrasive jet nozzle 24 is facing the gap between the two crushing rollers 22. In the present invention, the material containing slurry, agglomerated sticky blocks and larger-sized hard blocks enters between the two crushing rollers 22, and a large amount of slurry passes through the screen cage rollers 23 on both sides. The large and medium particles contained in the slurry will follow the rotating crushing rollers 22 into the gap for extrusion and crushing. At the same time, the slurry pump 25 injects the slurry with low particle content and small particle size in the upper layer of the slurry storage box 3 into the abrasive jet nozzle 24, and forms a high-speed jet for spraying. At the same time, negative pressure is formed in the abrasive jet nozzle 24, and the slurry containing particles within a certain particle size range in the middle of the connected slurry storage box 3 is sucked into the abrasive jet nozzle 24 and mixed with the internal slurry and sprayed together. The ejected high-speed flow impacts the gap between the two crushing rollers 22, breaks up the sticky blocks, and applies an upper impact pressure to the hard objects. At the same time, the water flows into the cracks of the hard objects, further accelerating the crushing of the block materials. The water flow can also clean the crushing rollers 22 and the gap in time, so that the efficiency of the crushing and refining process is further improved. In the present invention, a large amount of slurry passes through the screen cage roller 23, which reduces the crushing amount of the crushing roller 22 and improves the crushing efficiency. At the same time, the abrasive jet nozzle 24 sprays abrasives to assist the crushing roller 22 in crushing, further improving the crushing efficiency. Secondly, the rotating design of the screen cage roller 23 ensures that even if some of the slurry holes 231 are blocked, the slurry can flow from other slurry holes 231 into the slurry storage box 3.

[0032] An embodiment of the screen cage roller 23: Figure 5 The screen cage roller 23 includes two support rings 232, which are fixed to the first rotating shaft 234 through a support plate 233. A plurality of connecting plates 235 are fixed between the two support rings 232. The slurry drop holes 231 are distributed between the two connecting plates 235. There is a material drop cavity between the two support rings 232. The slurry flows into the material drop cavity from the slurry drop holes 231, and then falls into the slurry storage box 3 from the material drop cavity.

[0033] As another embodiment of the present invention: the screen cage roller 23 is located obliquely above the crushing roller 22. This design makes the slope of the location of the accumulation between the screen cage roller 23 and the crushing roller 22 small, making it convenient for the crushing roller 22 to transport the accumulation into the gap.

[0034] As another embodiment of the present invention: a filter screen 100 is provided in the middle and upper layers of the slurry storage box 3. The filter screen 100 is provided between the discharge port of the screening box 21 and the liquid outlet of the slurry storage box 3. The liquid outlet of the slurry storage box 3 is connected to the slurry pump 25 and the pipeline. When the slurry in the screening box 21 falls into the slurry storage box 3, the particles in the slurry are evenly distributed in the upper, middle and lower layers of the slurry storage box 3. In order to prevent particles with too large a particle size from being sucked into the slurry pump 25, a filter screen 100 is provided in the slurry storage box 3 so that only particles that meet a certain particle size range can reach the liquid outlet of the slurry storage box 3 for suction by the slurry pump 25 and the pipeline.

[0035] As another embodiment of the present invention: Figure 2 This embodiment further includes a first water replenishment tank 81, which is connected to the disperser 1 via a first water replenishment pipe 82. A first water replenishment pump 83 is provided on the first water replenishment pipe 82. While the slag enters the disperser 1 for dispersion and mixing, the system replenishes water to the slag in the disperser 1 through the first water replenishment pipe 82 according to the moisture content of the slag.

[0036] In another embodiment of the present invention, first water replenishment pipe 82 is connected to first water pipe 84, which is disposed between slurry storage tank 3 and first water replenishment pump 83. The system replenishes slurry in slurry storage tank 3 via first water pipe 84 based on the slurry content. First water replenishment tank 81, first water replenishment pipe 82, first water replenishment pump 83, and first water pipe 84 constitute first water replenishment mechanism 8.

[0037] As another embodiment of the present invention, a discharge valve is provided at the discharge port of the mixing cylinder 11 . After the disperser 1 disperses and stirs the slag, the discharge valve is opened and the slurry falls into the screening box 21 .

[0038] Specifically, a flow valve is provided on the second air injection pipe 75 , and the air output of the second air injection pipe 75 is adjusted by the flow valve.

[0039] As another embodiment of the present invention, the powder supply mechanism further includes an air pump 71 , which is connected to the first air injection pipe 74 and the second air injection pipe 75 respectively. The air pump 71 is used to provide compressed air to the first air injection pipe 74 and the second air injection pipe 75 .

[0040] In another embodiment of the present invention, a first control valve 76 is installed on the powder supply pipe 73 between the outlet of the second air jet pipe 75 and the intermediate storage tank 72. This first control valve 76 controls the delivery rate of the powder supply pipe 73, while the air output of the second air jet pipe 75 also adjusts the powder supply rate. This structural design allows for online adjustment of the dosage of the added agent by adjusting the valve position of the first control valve 76 and the flow rates of the first and second air jet pipes 74, 75. When the system stops operating, the first control valve 76 is closed, and the second air jet pipe 75 continues to spray compressed air to clear the powder from the powder supply pipe 73.

[0041] As another embodiment of the present invention: the air outlet end of the first air injection pipe 74 is located above the discharge port of the intermediate storage tank 72. This structural design can enable the powder to be transported near the discharge port of the intermediate storage tank 72 to be fully mixed with the air, and can effectively ensure the uniformity of the powder transported to the mixing branch pipe 52.

[0042] As another embodiment of the present invention, this embodiment further includes an additive tank, which is connected to the intermediate storage tank 72 via a conveying mechanism. In one embodiment of the conveying mechanism, the conveying mechanism is a screw feed rod, through which the additive tank continuously feeds the powder into the intermediate storage tank 72.

[0043] As another embodiment of the present invention, the outlet of the powder supply pipe 73 is located above the mixing branch pipe 52 . This structural design facilitates the powder to smoothly enter the mixing branch pipe 52 .

[0044] As another embodiment of the present invention, the horizontal position of the diversion pipe 51 is higher than that of the mixing branch pipe 52, ensuring that the slurry flows from high to low during the mixing process, thereby preventing the precipitation of particles in the slurry during the flow.

[0045] As another embodiment of the present invention, the second densitometer 300 is provided on the slurry supply pipe between the slurry pump 6 and the diversion pipe 51 .

[0046] An implementation method of the quantitative water replenishment mechanism 9: the quantitative water replenishment mechanism 9 includes a second water replenishment tank 92, which is connected to the mixing tube 53 through a second water replenishment pipe 91. The second water replenishment pipe 91 is provided with a second control valve 95, a second water replenishment pump 93 and a flow meter 94. When the second control valve 95 is opened, the second water replenishment pump 93 replenishes the slurry in the mixing tube 53 through the second water replenishment pipe 91, thereby adjusting the slurry concentration. In this process, the water replenishment amount is controlled by the flow meter 94 to achieve precise adjustment of the slurry concentration.

[0047] As another embodiment of the present invention, a second control valve 95 , a second water supply pump 93 and a flow meter 94 are sequentially arranged on the second water supply pipe 91 along the water supply direction.

[0048] In the present invention, the slag enters the disperser 1 for dispersion and stirring. The system replenishes water to the slag in the disperser 1 through the first water supply pump 83 according to the water content of the slag. After fluidization treatment by the disperser 1, the slag falls into the screening box 21 below. The slurry and small particles fall into the slurry storage box 3 from the screen cage rollers 23 on both sides. The crushing rollers 22 crush the large particles above it and the large particles transported by the screen cage rollers 23. The crushed small particles and slurry fall into the slurry storage box 3 below. The stirring mechanism 4 stirs the slurry in the slurry storage tank 3 to prevent slurry particles from settling. When pouring fluidized solidified soil, the slurry pump 6 continuously pumps the slurry from the slurry storage tank 3 into the diversion pipe 51 through the slurry supply pipe. The system controls whether the quantitative water replenishment mechanism 9 performs quantitative water replenishment based on the slurry concentration obtained by the second density meter 300. The raw material slurry is diverted through the diversion pipe 51 and enters the two mixing branches 52. At the same time, the first control valve 76 opens, and the first and second injection pipes 74 and 75 inject air. Under the combined suction effect of the raw material slurry in the mixing branch 52, the powder is quickly drawn into the mixing branch 52 and mixed with the raw material slurry. The two slurries, mixed with the powder, then enter the mixing pipe 53 for further mixing, forming a high-quality finished fluidized filling slurry. The system adjusts the supply of powder to the powder supply pipe 73 based on the slurry dosage obtained by the first density meter 200. The specific process for adjusting the raw material slurry concentration is as follows: when the raw material slurry concentration is low and water needs to be replenished, the second water replenishment pump 93 replenishes water from the second water replenishment tank 92 into the mixing tube 53, and the replenishment amount is controlled by the flow meter 94. The specific process for adjusting the medicinal dosage in the slurry is as follows: the first control valve 76 controls the delivery volume of the medicinal supply pipe, and the air pump 71 controls the powder supply speed by adjusting the air pressure and flow rate of the first and second air injection pipes 74 and 75, thereby adjusting the medicinal dosage in the slurry.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A system for preparing fluidized solidified soil online from high-moisture content slag, characterized in that: The sieve is connected to the mixing station through a channel which has two channels, one for mixing powder and the other for mixing powder, and one for mixing powder in a channel which has two channels.

2. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 1 is characterized in that: The disperser includes: a mixing drum, a power device and a gear device, a first mixing shaft and a second mixing shaft are rotatably arranged on the gear device, the first mixing shaft is provided with obliquely distributed side wings, the side wings are provided with wing feathers, a plurality of flexible vertical shafts are fixed on the first mixing shaft, a plurality of rope drums are fixed on the second mixing shaft along its height direction, a plurality of flexible horizontal shafts are fixed on the rope drum, a differentiation head is provided on the front end of the flexible horizontal shaft, a plurality of differentiation plates are spaced apart on the flexible horizontal shaft between the differentiation head and the rope drum, the power device drives the first mixing shaft and the second mixing shaft to rotate through the gear device, and drives the first mixing shaft and the second mixing shaft to rotate around the central axis of the mixing drum.

3. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 1 is characterized in that: The screening and crushing machine includes a screening box, a crushing roller is rotatably arranged in the screening box, a screen cage roller is rotatably arranged between the crushing roller and the inner wall of the screening box, the screen cage roller is provided with a slurry drop hole for slurry to pass through, the crushing roller and the screen cage roller on the same side rotate in opposite directions, the top of the screen cage roller is located above the crushing roller, an abrasive jet nozzle is provided above the crushing roller, a first inlet of the abrasive jet nozzle is connected to the upper layer of the slurry storage box through a slurry pump, and a second inlet of the abrasive jet nozzle is connected to the middle layer of the slurry storage box through a pipeline, and the nozzle of the abrasive jet nozzle is facing the gap between the two crushing rollers.

4. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 3 is characterized in that: The screen cage roller includes two support rings, which are fixed to the first rotating shaft through support plates. A plurality of connecting plates are fixed between the two support rings, and the pulp drop holes are distributed between the two connecting plates.

5. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 4 is characterized in that: The middle layer and the upper layer of the slurry storage box are provided with filter screens, and the filter screens are arranged between the discharge port of the screening box and the liquid outlet of the slurry storage box, and the liquid outlet of the slurry storage box is communicated with the abrasive jet nozzle.

6. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 5 is characterized in that: The screen cage roller is located obliquely above the crushing roller.

7. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 1 is characterized in that: It also includes a first water supply tank, which is connected to the disperser through a first water supply pipe, and a first water supply pump is provided on the first water supply pipe; the first water supply pipe is connected to a first water pipe, and the first water pipe is provided between the slurry storage box and the first water supply pump.

8. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 1 is characterized in that: An air pump is also included, and the air pump is connected to the first air injection pipe and the second air injection pipe respectively.

9. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 8, characterized in that: A first control valve is provided on the powder supply pipe between the air outlet of the second air injection pipe and the intermediate storage tank.

10. The system for preparing fluidized solidified soil online from high-moisture content slag according to claim 9, characterized in that: The quantitative water replenishment mechanism includes a second water replenishment tank, which is connected to the mixing pipe through a second water replenishment pipe. The second water replenishment pipe is provided with a second control valve, a second water replenishment pump and a flow meter.

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