Flow-state solidified soil slurry mixing preparation device for constructional engineering

Abstract

The invention relates to the technical field of constructional engineering material preparation, in particular to a constructional engineering fluid-state solidified soil slurry mixing preparation device which comprises a rack and a mixing assembly, the rack is provided with a reaction tank body and a discharge port, the discharge port is formed in the reaction tank body, and the mixing assembly is arranged on the rack. The mixing assembly is arranged on the rack and the reaction tank body, and the dust collecting and reusing mechanism is arranged on the reaction tank body and can collect flying dust and send the flying dust into the reaction tank body again to participate in mixing. In the preparation process, slurry at the lower part of the reaction tank body can continuously turn over upwards, so that soil particles contained in engineering spoil, building residue soil and other raw materials are promoted to move upwards, the soil particles are effectively prevented from settling and can be contacted and combined with a curing agent, the raw materials are further prevented from being excessively separated from the curing agent, and uniform mixing is ensured.

Description

Technical Field

[0001] This invention relates to the field of building materials preparation technology, and more specifically, to a mixing and preparation device for fluidized solidified soil slurry used in building engineering. Background Technology

[0002] Fluidized solidified soil is a slurry-like material with certain fluidity, strength, and other engineering properties, formed by mixing solid waste such as engineering spoil, silt, and construction waste with a certain proportion of solidifying agent (such as cement, lime, industrial waste residue, etc.) and water. Due to its advantages such as utilizing waste materials, conserving natural resources, convenient construction, and controllable performance, it is widely used in construction engineering fields such as roadbed backfilling, pipeline backfilling, foundation pit backfilling, and site leveling.

[0003] The performance of fluidized solidified soil is highly dependent on the uniformity of its components. The mixing quality directly determines the final performance of the fluidized solidified soil, such as strength uniformity and durability. However, because raw materials such as engineering waste soil and construction slag are rich in soil particles, these particles tend to settle during the mixing process, while the solidifying agent needs to be uniformly dispersed. This leads to separation between the soil and the solidifying agent, affecting the uniformity of the resulting slurry. In addition, the slurry preparation involves first dry mixing the raw materials such as engineering waste soil and construction slag with the solidifying agent, and then adding water for wet mixing. Therefore, the dry mixing process generates dust pollution, which not only deteriorates the working environment but also causes material loss, especially of the solidifying agent, affecting the accuracy of the proportions. Furthermore, the method of adding water later makes it difficult to fully wet the dry material that has accumulated to a certain thickness in a short time, resulting in a long mixing time required to achieve the desired uniformity, which restricts the preparation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a mixing and preparation device for fluidized solidified soil slurry for construction engineering, so as to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides a mixing and preparation apparatus for fluidized solidified soil slurry used in construction engineering, comprising: A frame on which a reaction vessel is mounted; A discharge port is provided on the reaction vessel body; A mixing component is provided on the frame and the reaction vessel. The mixing component can cause the slurry in the lower layer of the reaction vessel to surge upward during the mixing preparation process and can directly add water into the material. A dust collection and reuse mechanism is provided on the reaction tank. The dust collection and reuse mechanism can collect dust and send it back into the reaction tank to participate in mixing.

[0006] Further, the hybrid component includes: An electric motor, which is mounted on the frame; A speed reducer is mounted on the frame and located directly below the reaction vessel, and the speed reducer is connected to the output shaft of the motor; The main shaft is connected to the output end of the reducer and extends upward through the bottom of the reaction vessel into the reaction vessel body; Two stirring blades are mounted mirror-on the main shaft and located inside the reaction vessel; An extension channel is provided, which is connected to the top of the main shaft and protrudes from the reaction vessel body. A bearing, which is mounted at the top of the extension channel; A rigid pipe, one end of which is inserted into the extension channel and installed on the inner ring of the bearing, and the other end is connected to the outlet of an external high-pressure water pump. The inlet of the external high-pressure water pump is inserted into the water source through a connecting pipe. Several discharge ports are provided, two of the aforementioned stirring blades are hollow, the extended channel is connected to the two aforementioned stirring blades, and the several discharge ports are respectively opened on the two aforementioned stirring blades.

[0007] Furthermore, the hybrid component also includes: Two bottom chambers, which are connected to the main shaft and located between the two stirring blades respectively; Two sliding members are respectively slidably inserted into the two bottom compartments; Two positioning arms are respectively mounted on the top of the two sliding members; Two turbulence components are respectively installed on the two positioning arms and attached to the inner bottom surface of the reaction vessel. Gas supply pipes are inserted into the lower part of the two bottom chambers and the two gas supply pipes are connected to an external high-pressure gas pump. The two sliding components press on the two gas supply pipes respectively.

[0008] Furthermore, the dust collection and reuse mechanism includes: An air inlet is installed on the top surface of the reaction vessel, and the width of the air inlet is the same as the diameter of the reaction vessel. The main pipe is connected to the air outlet of the external blower and extends to the rear of the air outlet, and the end of the main pipe is closed. Several branch pipes are distributed at equal intervals and the main pipe is connected to the air inlet. A collection bin is installed on the top surface of the reaction vessel and is opposite to and attached to the air inlet.

[0009] Furthermore, the dust collection and reuse mechanism also includes: A mist generator is installed on top of the collection bin; The first water supply pipe has one end connected to the mist generator and the other end connected to the outlet of the first external water pump. The inlet of the first external water pump is inserted into the water source through a connecting pipe.

[0010] Furthermore, the dust collection and reuse mechanism also includes: The second water supply pipe has one end inserted centrally from the rear of the collection bin and the other end connected to the outlet of the second external water pump. The inlet of the second external water pump is inserted into the water source through a connecting pipe.

[0011] Furthermore, the dust collection and reuse mechanism also includes: Two scraper strips are respectively attached to the inner side wall of the collection bin, and the ends of the two scraper strips near the second water supply pipe are rotatably installed inside the collection bin; Two mounting trays are respectively connected to both sides of the collection bin; Two first electric push rods are respectively mounted on the two mounting plates, and the output shafts of the two first electric push rods are inserted into the collection bin and respectively hinged to the two scraper bars.

[0012] Furthermore, the dust collection and reuse mechanism also includes: A corrugated rubber sleeve is installed on the outer wall of the collection bin, and the second water supply pipe is installed on the corrugated rubber sleeve. The second electric push rod is connected to the outer wall of the collection bin, and its output shaft is connected to the second water supply pipe. The end of the second water supply pipe that enters the collection bin is a flat trapezoidal shape, and several side openings are provided around its perimeter.

[0013] Furthermore, baffles are installed at several of the discharge ports on both of the stirring blades.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This construction engineering fluidized solidified soil slurry mixing and preparation device utilizes a mixing component that enables powerful and efficient mixing, ensuring a smooth slurry preparation process. During preparation, the mixing component continuously churns the slurry at the bottom of the reaction tank, causing soil particles from excavated soil and construction waste to rise, effectively preventing soil particle settling and allowing them to contact and combine with the solidifying agent. This prevents excessive separation between the raw materials and the solidifying agent, ensuring uniform mixing. Furthermore, when initially dry-mixing the excavated soil, construction waste, and solidifying agent, the mixing component can directly discharge water into the stockpiled excavated soil, construction waste, and solidifying agent. Internally, the material is mixed with water. The mixing components and the dust collection and reuse mechanism add water simultaneously from both inside and outside, which effectively increases the speed at which the dry material is fully wetted. This, in turn, effectively reduces the mixing time required to mix the slurry to the predetermined uniformity, thus improving the preparation efficiency. The dust collection and reuse mechanism not only collects the dust generated during dry mixing, preventing it from spreading, but also mixes the dust with water and sends it back into the reaction tank for mixing. This effectively controls pollution, prevents the deterioration of the working environment, avoids the loss of materials, especially the curing agent, ensures the accuracy of the component ratios, comprehensively improves the slurry preparation effect, and guarantees the quality of the prepared fluidized solidified soil slurry. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 A perspective view of the present invention is shown; Figure 2 A second perspective view of the present invention is shown; Figure 3 A third perspective view of the present invention is shown; Figure 4 A fourth perspective view of the present invention is shown; Figure 5 A fifth perspective view of the present invention is shown; Figure 6 A sixth perspective view of the present invention is shown; Figure 7 A seventh perspective view of the present invention is shown; Figure 8 A partial top view of the invention is shown; Figure 9 The present invention is shown. Figure 4 Enlarged view of point A; Figure 10 The present invention is shown. Figure 4 Enlarged view of point B; Figure 11 The present invention is shown. Figure 6 Enlarged view of point C; Figure 12 The present invention is shown. Figure 7 Enlarged view of point D.

[0017] In the figure, the same reference numerals represent the same structural element, wherein: 1. Frame; 2. Reaction tank; 3. Discharge port; 4. Mixing assembly; 41. Electric motor; 42. Reducer; 43. Main shaft; 44. Stirring blade; 45. Extension channel; 46. Bearing; 47. Rigid pipe; 48. Bottom silo; 49. Sliding component; 491. Positioning arm; 492. Tumbling component; 5. Dust collection and reuse mechanism; 51. Air outlet; 52. Main pipe; 53. Branch pipe; 54. Collection silo; 55. Mist generator; 56. First water supply pipe; 57. Second water supply pipe; 58. Scraper bar; 59. Mounting plate; 591. First electric push rod; 592. Corrugated rubber sleeve; 593. Second electric push rod; 6. Baffle plate. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0019] like Figure 1-12 As shown, a mixing and preparation device for fluidized solidified soil slurry used in construction engineering is characterized by comprising: Frame 1, on which reaction vessel 2 is mounted; Discharge port 3 is located on the reaction tank body 2; Mixing component 4 is installed on the frame 1 and the reaction vessel 2. Mixing component 4 can cause the slurry in the lower layer of the reaction vessel 2 to surge upward during the mixing preparation process and can directly add water into the material. The dust collection and reuse mechanism 5 is installed on the reaction tank 2. This mechanism collects dust and reintroduces it into the reaction tank 2 for mixing. The fluidized solidified soil slurry mixing and preparation device for construction engineering, through the mixing component 4, can perform powerful stirring and mixing, ensuring the smooth progress of the slurry preparation process. Furthermore, the mixing component 4 continuously causes the slurry at the bottom of the reaction tank 2 to surge upwards during the preparation process, thereby promoting the upward movement of soil particles contained in the raw materials such as construction waste and building debris. This effectively prevents soil particle settling, allowing them to contact and combine with the solidifying agent, thus preventing excessive separation between the raw materials and the solidifying agent and ensuring uniform mixing. Simultaneously, when the mixing component 4 first dry-mixes the raw materials such as construction waste and building debris with the solidifying agent... Water can be directly discharged into the stockpiled engineering waste soil, construction slag, and other raw materials and solidifying agents, allowing them to mix with the water. The mixing component 4 and the dust collection and reuse mechanism 5 simultaneously add water from the inside and outside, effectively increasing the speed at which dry materials are fully wetted. This, in turn, effectively reduces the mixing time required to mix the slurry to the predetermined uniformity, thus improving the preparation efficiency. The dust collection and reuse mechanism 5 not only collects the dust generated during dry mixing, preventing it from spreading, but also mixes the dust with the water flow and sends it back to the reaction tank 2 for mixing. This effectively controls pollution, prevents the deterioration of the working environment, avoids the loss of materials, especially solidifying agents, ensures the accuracy of the component ratios, comprehensively improves the slurry preparation effect, and guarantees the quality of the prepared fluidized solidified soil slurry.

[0020] Optionally, hybrid component 4 includes: Motor 41, motor 41 is mounted on frame 1; The reducer 42 is mounted on the frame 1 and located directly below the reaction vessel 2. The reducer 42 is connected to the output shaft of the motor 41. Both the motor 41 and the reducer 42 are existing technologies. Main shaft 43 is connected to the output end of reducer 42 and extends upward through the bottom of reaction tank 2 into the reaction tank 2; Two stirring blades 44 are mirror-mounted on the main shaft 43 and located inside the reaction vessel 2; The extension channel 45 is connected to the top of the main shaft 43 and protrudes out of the reaction vessel 2; Bearing 46 is mounted at the top of extension channel 45; Rigid pipe 47, one end of which is inserted into the extension channel 45 and installed on the inner ring of the bearing 46, and the other end is connected to the outlet of the external high-pressure water pump. The inlet of the external high-pressure water pump is inserted into the water source through the connecting pipe. Several discharge ports are provided. Two hollow stirring blades 44 are connected to an extension channel 45. Several discharge ports are respectively opened on the two stirring blades 44. The motor 41 is started, and the main shaft 43 and the two stirring blades 44 are driven to rotate with high torque through the reducer 42 to ensure strong mixing force and ensure the smooth progress of the slurry preparation process. When the raw materials such as engineering waste soil and construction waste soil and solidifying agent are first added for dry mixing, the external high-pressure water pump is started to pump water. The water is sent into the two stirring blades 44 along the rigid pipe 47 and the extension channel 45. Finally, the water is sprayed out through several discharge ports. At this time, the two stirring blades 44 are continuously mixing engineering waste soil and construction waste soil. The raw materials and curing agent are added directly to the dry material, thus wetting the dry material. This avoids the slow wetting speed caused by only adding water to the surface of the accumulated dry material, effectively improving the speed of fully wetting the dry material. This effectively reduces the mixing time required to mix the slurry to the predetermined uniformity, thus improving the preparation efficiency. The rigid tube 47 is fixed in position. When the main shaft 43 and the extension channel 45 rotate, the outer ring of the bearing 46 rotates synchronously, while the inner ring remains stationary under the fixation of the rigid tube 47. This ensures that the rigid tube 47 is not affected by the rotation of the main shaft 43 and the extension channel 45. The rigid tube 47 does not restrict the rotation of the main shaft 43 and the extension channel 45, and stably delivers water into the extension channel 45.

[0021] Optionally, hybrid component 4 also includes: Two bottom chambers 48 are connected to the main shaft 43 and are located between two stirring blades 44 respectively; Two sliding parts 49 are respectively slidably inserted into the two bottom compartments 48; Two positioning arms 491 are respectively installed on the top of the two sliding parts 49; Two agitator components 492 are respectively installed on two positioning arms 491 and attached to the inner bottom surface of the reaction vessel 2. Gas supply pipes are inserted into the lower parts of both bottom chambers 48, and these pipes are connected to an external high-pressure air pump. Two sliding components 49 are pressed against the two gas supply pipes. During the wet mixing process after dry mixing, the external high-pressure air pump is started to pump air continuously into the two bottom chambers 48 along the two gas supply pipes. This high-pressure gas then pushes the two sliding components 49 upwards along the two bottom chambers 48. The arm 491 pulls the two tumbling components 492 upward from the inner bottom surface of the reaction tank 2 in the slurry. The two sliding components 49 are repeatedly pushed by an external high-pressure air pump. During the mixing process, the two tumbling components 492 continuously carry the slurry at the bottom of the reaction tank 2 upward, causing the slurry to tumble upward. This promotes the upward movement of soil particles contained in raw materials such as engineering waste soil and construction slag, effectively preventing soil particle settling and allowing them to come into contact with and combine with the solidifying agent. This prevents excessive separation between the raw materials and the solidifying agent, ensures uniform mixing, and guarantees the quality of the prepared fluidized solidified soil slurry.

[0022] Optionally, the dust collection and reuse mechanism 5 includes: Air inlet 51 is installed on the top surface of the reaction vessel 2, and the width of the air inlet 51 is the same as the diameter of the reaction vessel 2. The main pipe 52 is connected to the air outlet of the external blower and extends to the rear of the air outlet 51, and the end of the main pipe 52 is closed. Several branch pipes 53 are distributed at equal intervals and connect the main pipe 52 to the air inlet 51; The collection bin 54 is installed on the top surface of the reaction tank 2 and is opposite and attached to the air outlet 51. During the dry mixing process, the external blower is started to blow air. Through the main pipe 52 and several branch pipes 53, the air outlet 51 begins to blow air horizontally against the top surface of the reaction tank 2, thereby forming a flowing air curtain on its top surface. The dust generated during the dry mixing process and drifting upward is blown into the collection bin 54 on the opposite side. The continuous blowing air suppresses the dust in the collection bin 54, realizing the centralized collection and control of dust, effectively preventing dust from drifting around the work site and causing the deterioration of the working environment, and controlling pollution.

[0023] Optionally, the dust collection and reuse mechanism 5 also includes: The mist generator 55 is installed on the top of the collection bin 54. Specifically, the mist generator 55 is a box that can store water. Its bottom has many tiny holes, so that when the water flows out of the holes under pressure, it becomes a fine water jet or water mist. The first water supply pipe 56 is connected at one end to the mist generator 55 and at the other end to the outlet of the first external water pump. The inlet of the first external water pump is inserted into the water source through a connecting pipe. The first external water pump is started at the same time as the external blower is started, and water is pumped into the mist generator 55. The mist generator 55 starts to spray fine water jets or water mist into the collection bin 54 to combine with the dust, so that the dust settles in the collection bin 54. This prevents the dust from drifting out again during the continuous collection process and further improves the effect of controlling dust pollution.

[0024] Optionally, the dust collection and reuse mechanism 5 also includes: The second water supply pipe 57 is inserted centrally from the tail of the collection bin 54 at one end and connected to the outlet of the second external water pump at the other end. The inlet of the second external water pump is inserted into the water source through a connecting pipe. When wet mixing begins after dry mixing, the second external water pump is started, and water is supplied to the collection bin 54 through the second water supply pipe 57. Subsequently, the water flows along the collection bin 54 into the reaction tank 2, ensuring a normal supply of water required for slurry preparation. In conjunction with the mixing component 4, water is added to the dry material both inside and outside, ensuring rapid and thorough wetting of the dry material. In addition, during the water addition process through the second water supply pipe 57, the water flow carries the slurry containing dust from the collection bin 54 into the reaction tank 2, realizing the reuse of the dust and returning it to the reaction tank 2 to participate in mixing. This avoids the loss of materials, especially the curing agent, ensures the accuracy of the component ratios, comprehensively improves the slurry preparation effect, and guarantees the quality of the prepared fluidized solidified soil slurry.

[0025] Optionally, the dust collection and reuse mechanism 5 also includes: Two scraper strips 58 are respectively attached to the inner wall of the collection bin 54, and the ends of the two scraper strips 58 near the second water supply pipe 57 are rotatably installed inside the collection bin 54. Two mounting trays 59 are respectively connected to both sides of the collection bin 54; Two first electric push rods 591 are respectively mounted on two mounting plates 59, and the output shafts of the two first electric push rods 591 are inserted into the collection bin 54 and hinged to two scraper bars 58 respectively. When the second external water pump is started to add water, the two first electric push rods 591 are driven to push the two scraper bars 58 forward, so that they close to a certain extent. The two scraper bars 58 form a channel to introduce the water discharged from the second water supply pipe 57 into the reaction tank 2, thereby restricting the water flow trajectory and preventing the water from flowing directly only in the collection bin 54 and leaking between the collection bin 54 and the reaction tank 2. This ensures that the water is reliably delivered into the reaction tank 2. At the same time, during the closing process of the two scraper bars 58, the mud on the movement path is scraped over, ensuring that the water flow can fully carry the mud containing dust into the reaction tank 2.

[0026] Optionally, the dust collection and reuse mechanism 5 also includes: Corrugated rubber sleeve 592 is installed on the outer wall of the collection bin 54, and the second water supply pipe 57 is installed on the corrugated rubber sleeve 592. The second electric push rod 593 is connected to the outer wall of the collection chamber 54, and its output shaft is connected to the second water supply pipe 57. The end of the second water supply pipe 57 that enters the collection chamber 54 is a flat trapezoidal shape, and several side openings are opened on the periphery. When the water flows out, it will spray out in all directions and diffuse forward. At the same time, when adding water, the second electric push rod 593 is driven to repeatedly pull and push the second water supply pipe 57 forward and backward, so that the second water supply pipe 57 moves to release water, thereby ensuring that the water flow can cover the area inside the collection chamber 54 to wash the mud mixed with dust, and further ensure that the water flow can fully carry the mud containing dust into the reaction tank 2 to participate in the mixing.

[0027] Optionally, baffles 6 are installed at several discharge ports on both stirring blades 44. The baffles 6 are made of high-density non-woven fabric, etc. Only the high pressure of the external high-pressure water pump can force water through several baffles 6 to wet the dry material, preventing the slurry from passing through several baffles 6 into the two stirring blades 44 during the mixing process and causing blockage, which would prevent the water from flowing normally from several discharge ports directly into the dry material.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mixing and preparation device for fluidized solidified soil slurry used in construction engineering, characterized in that, include: A frame (1) on which a reaction vessel (2) is mounted; Discharge port (3), the discharge port (3) is provided on the reaction vessel body (2); A mixing component (4) is disposed on the frame (1) and the reaction vessel (2). The mixing component (4) can cause the slurry in the lower layer of the reaction vessel (2) to surge upward during the mixing preparation process and can directly add water into the material. The dust collection and reuse mechanism (5) is installed on the reaction tank (2). The dust collection and reuse mechanism (5) can collect dust and send it back into the reaction tank (2) to participate in the mixing.

2. The mixing and preparation device for fluidized solidified soil slurry for construction engineering as described in claim 1, characterized in that, The hybrid component (4) includes: An electric motor (41) is mounted on the frame (1); A speed reducer (42) is mounted on the frame (1) and located directly below the reaction vessel (2), and the speed reducer (42) is connected to the output shaft of the motor (41); Main shaft (43), the main shaft (43) is connected to the output end of the reducer (42) and passes through the bottom of the reaction tank (2) and enters the reaction tank (2); Two stirring blades (44) are mirror-mounted on the main shaft (43) and located inside the reaction vessel (2); An extension channel (45) is connected to the top of the main shaft (43) and protrudes from the reaction vessel (2). A bearing (46) is mounted at the top of the extension channel (45); A rigid pipe (47) is inserted into the extension channel (45) at one end and installed on the inner ring of the bearing (46). The other end is connected to the outlet of the external high-pressure water pump. The inlet of the external high-pressure water pump is inserted into the water source through a connecting pipe. Several discharge ports are provided. The two stirring blades (44) are hollow. The extended channel (45) is connected to the two stirring blades (44). The several discharge ports are respectively opened on the two stirring blades (44).

3. The mixing and preparation device for fluidized solidified soil slurry for construction engineering as described in claim 2, characterized in that, The hybrid component (4) also includes: Two bottom chambers (48) are connected to the main shaft (43) and are respectively located between the two stirring blades (44); Two sliding members (49) are respectively slidably inserted into the two bottom compartments (48); Two positioning arms (491) are respectively mounted on the top of the two sliding members (49); Two turbulence components (492) are respectively installed on the two positioning arms (491), and the two turbulence components (492) are attached to the inner bottom surface of the reaction tank (2). Gas supply pipes are inserted into the lower part of the two bottom chambers (48), and the two gas supply pipes are connected to an external high-pressure gas pump. The two sliding components (49) are respectively pressed on the two gas supply pipes.

4. The mixing and preparation device for fluidized solidified soil slurry for construction engineering as described in claim 3, characterized in that, The dust collection and reuse mechanism (5) includes: An air inlet (51) is installed on the top surface of the reaction vessel (2), and the width of the air inlet (51) is the same as the diameter of the reaction vessel (2). The main pipe (52) is connected to the air outlet of the external blower and extends to the rear of the air outlet (51), and the end of the main pipe (52) is closed. A plurality of branch pipes (53) are distributed at equal intervals and the main pipe (52) is connected to the air inlet (51); Collection bin (54) is installed on the top surface of the reaction tank (2) and is opposite to and attached to the air inlet (51).

5. The mixing and preparation device for fluidized solidified soil slurry for construction engineering as described in claim 4, characterized in that, The dust collection and reuse mechanism (5) further includes: A mist generator (55) is installed on top of the collection bin (54); The first water supply pipe (56) is connected at one end to the mist generator (55) and at the other end to the outlet of the first external water pump. The inlet of the first external water pump is inserted into the water source through a connecting pipe.

6. The mixing and preparation device for fluidized solidified soil slurry for construction engineering as described in claim 5, characterized in that, The dust collection and reuse mechanism (5) further includes: The second water supply pipe (57) is inserted from the center of the tail of the collection bin (54) at one end and connected to the outlet of the second external water pump at the other end. The inlet of the second external water pump is inserted into the water source through a connecting pipe.

7. The mixing and preparation device for fluidized solidified soil slurry for construction engineering as described in claim 6, characterized in that, The dust collection and reuse mechanism (5) further includes: Two scraper strips (58) are respectively attached to the inner side wall of the collection bin (54), and the two scraper strips (58) are rotatably installed in the collection bin (54) at one end near the second water supply pipe (57). Two mounting trays (59) are respectively connected to both sides of the collection bin (54); Two first electric push rods (591) are respectively mounted on two mounting plates (59), and the output shafts of the two first electric push rods (591) are inserted into the collection bin (54) and respectively hinged to the two scraper bars (58).

8. The apparatus for preparing fluidized solidified soil slurry for construction engineering as described in claim 7, characterized in that, The dust collection and reuse mechanism (5) further includes: A corrugated rubber sleeve (592) is installed on the outer wall of the collection bin (54), and the second water supply pipe (57) is installed on the corrugated rubber sleeve (592). The second electric push rod (593) is connected to the outer wall of the collection bin (54), and its output shaft is connected to the second water supply pipe (57). The end of the second water supply pipe (57) that enters the collection bin (54) is a flat trapezoidal shape, and several side openings are provided around it.

9. The mixing and preparation apparatus for fluidized solidified soil slurry for construction engineering as described in claim 8, characterized in that, Baffles (6) are installed at several of the discharge ports on both of the stirring blades (44).

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