Premixed fluidified solidified soil delivery device and system

Abstract

The application discloses a kind of premixed fluidized solidified soil conveying devices and systems, it is related to nuclear power plant room assembly type building construction technical field, by setting up storage mechanism, segregation mechanism and solidified soil pumping mechanism, so that operating personnel when premixed fluidized solidified soil is pumped and grouted operation, premixed fluidized solidified soil can be filtered operation, to avoid the stone in premixed fluidized solidified soil from causing solidified soil pumping mechanism to be blocked and damaged;Premixed fluidized solidified soil can be further separated from stone, so that smaller particles of stone can also be separated, to ensure the smoothness of premixed fluidized solidified soil, simultaneously premixed fluidized solidified soil pumping grouting process is no longer limited by topography height, premixed fluidized solidified soil can be pumped to different positions, improve the grouting portability and smoothness of premixed fluidized solidified soil.

Description

Technical Field

[0001] This invention relates to the field of premixed fluidized solidified soil conveying technology, and particularly to a premixed fluidized solidified soil conveying device and system. Background Technology

[0002] Premixed fluidized solidified soil is a new type of green material made by mixing solidifying agent, additives, water and soil. It has excellent fluidity and exhibits significant strength after solidification. Therefore, it is widely used in backfilling of foundation pits, fertilizer tanks and other parts to achieve energy conservation, emission reduction and comprehensive utilization of industrial solid waste.

[0003] However, the conventional pouring methods currently used in the market are overhead pumps, ground pumps, or gravity flow. Overhead pumps are expensive, and the volume of the pit or trench pouring area is small, which is uneconomical. Ground pumps require the construction of pump pipe racks, are not suitable for long-distance transportation, and are inconvenient to use. Gravity flow has high requirements for terrain, requiring the tanker truck to be able to reach the pouring site, and can only pour from high places to low places. Summary of the Invention

[0004] The main objective of this invention is to propose a premixed fluidized solidified soil conveying device and system, which aims to solve the problems of conventional pouring methods using overhead pumps, ground pumps, or gravity flow. Overhead pumps are costly and uneconomical due to their small volume in pits and trenches. Ground pumps require the construction of pump pipe racks, are not suitable for long-distance transportation, and are inconvenient to use. Gravity flow methods have high requirements for terrain, require tank trucks to reach the pouring site, and can only pour from high places to low places.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a premixed fluidized solidified soil conveying device, comprising: A material storage mechanism is provided, comprising a first filter chamber, a second filter chamber, and a third filter chamber arranged in sequence. The first filter chamber is provided with a feed inlet and is located above the second filter chamber. A grid is provided between the first filter chamber and the second filter chamber. The grid can filter the premixed fluidized solidified soil flowing into the first filter chamber from the feed inlet and retain the stone in the premixed fluidized solidified soil. A partition is provided between the second filter chamber and the third filter chamber. A separation mechanism, installed within the second filtration chamber, is capable of agitating the premixed fluidized solidified soil that has passed through the grid and flows into the second filtration chamber. The separation mechanism also separates out gravel from the premixed fluidized solidified soil and causes it to be thrown over the partition and enter the third filtration chamber. A solidified soil pumping mechanism includes a pump body and a delivery pipe. The pump body is installed in the third filter chamber. One end of the delivery pipe is connected to the pump body, and the other end passes through the storage mechanism and extends to the area to be constructed. The pump body can draw the premixed fluidized solidified soil in the third filter chamber and spray it to the area to be constructed through the delivery pipe.

[0006] In one embodiment, the grid is inclinedly disposed above the second filter chamber, so that the bottom of the first filter chamber forms an inclined filter surface.

[0007] In one embodiment, a slag discharge port is formed at the bottom of the first filter chamber, and a sealing member is provided on the slag discharge port, the sealing member having an open state and a closed state; In the open state, the stone material can be discharged out of the first filter chamber through the slag discharge port; in the closed state, the grid can filter the premixed fluidized solidified soil that enters the first filter chamber through the feed port and retain the stone material.

[0008] In one embodiment, the filter holes on the grid are rectangular or circular holes, and the filter holes can trap stones with a diameter greater than 2 cm.

[0009] In one embodiment, the separation mechanism includes: A bracket is installed in the second filter chamber, and the bracket is spaced apart from the grid. A separation component is installed on the support and extends to the bottom of the second filter chamber. The separation component can stir the premixed fluidized solidified soil that has passed through the grid and flowed into the second filter chamber to separate the gravel and throw the premixed fluidized solidified soil over the partition into the third filter chamber.

[0010] In one embodiment, the separation component includes: A first drive motor, mounted on the bracket, with its output shaft facing downwards; and... A stirrer is installed on the output shaft of the first drive motor and extends to the bottom of the second filter chamber. The first drive motor drives the stirrer to stir the premixed fluidized solidified soil that has been filtered by the grid and flows into the second filter chamber, so as to separate the gravel and throw the premixed fluidized solidified soil over the partition and enter the third filter chamber.

[0011] In one embodiment, a first cleaning port is provided at the bottom of the second filter chamber, and a first slag discharge valve is installed on the first cleaning port. The first slag discharge valve has a first closed state and a first cleaning state. In the first closed state, the first drive motor can drive the agitator to stir the premixed fluidized solidified soil in the second filter chamber to separate the gravel therein and to throw the premixed fluidized solidified soil over the partition and enter the third filter chamber. In the first cleaning state, the first slag discharge valve can open the first cleaning port to clean the second filter chamber.

[0012] In one embodiment, the third filter chamber is further provided with a second cleaning port, and a second slag discharge valve is installed on the second cleaning port. The second slag discharge valve has a second closed state and a second cleaning state. In the second closed state, the pump body can draw the premixed fluidized solidified soil in the third filter chamber and spray it to the construction area through the delivery pipe. In the second cleaning state, the second slag discharge valve can open the second cleaning port to clean the third filter chamber.

[0013] In one embodiment, the solidified soil pumping mechanism further includes a hanger installed in the third filter chamber, the pump body being connected to the hanger, and the suction port of the pump body extending to the bottom of the third filter chamber.

[0014] Based on the same technical concept, in a second aspect, the present invention also proposes a premixed fluidized solidified soil conveying system, including the premixed fluidized solidified soil conveying device described in the first aspect.

[0015] The technical solution of this invention, by setting up a storage mechanism, a segregation mechanism, and a solidified soil pumping mechanism, allows for the formation of a first filter chamber, a second filter chamber, and a third filter chamber arranged sequentially on the storage mechanism during use. The first filter chamber has an inlet and is located above the second filter chamber. A grid is installed between the first and second filter chambers, filtering the premixed fluidized solidified soil flowing into the first filter chamber from the inlet and trapping stones within it. A partition is installed between the second and third filter chambers, thus forming a three-stage filtration structure on the storage mechanism. This allows operators to filter the premixed fluidized solidified soil during pumping and pouring operations, preventing stones in the premixed fluidized solidified soil from clogging and damaging the solidified soil pumping mechanism. Simultaneously, the segregation mechanism is installed within the second filter chamber. The separation mechanism can stir the premixed fluidized solidified soil that has passed through the grid filter and flowed into the second filter chamber. The separation mechanism can separate the gravel in the premixed fluidized solidified soil and throw the premixed fluidized solidified soil over the partition to enter the third filter chamber. This allows the invention to further separate the stone in the premixed fluidized solidified soil, so that even smaller stone particles can be separated, ensuring the smoothness of the premixed fluidized solidified soil. The solidified soil pumping mechanism includes a pump body and a delivery pipe. The pump body is installed in the third filter chamber. One end of the delivery pipe is connected to the pump body, and the other end passes through the storage mechanism and extends to the area to be constructed. The pump body can draw the premixed fluidized solidified soil in the third filter chamber and spray it into the area to be constructed through the delivery pipe. This makes the pumping and pouring process of the premixed fluidized solidified soil no longer limited by the terrain elevation, and can pump the premixed fluidized solidified soil to different locations, improving the portability and smoothness of the premixed fluidized solidified soil pouring. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the premixed fluidized solidified soil conveying device provided by the present invention; Figure 2 for Figure 1 Another structural schematic diagram of the premixed fluidized solidified soil conveying device in the example; Figure 3 for Figure 1 A structural schematic diagram of the BB cross section in the example; Figure 4 for Figure 1A schematic diagram of the CC cross-section in the example; Figure 5 for Figure 1 The example is a structural schematic diagram of the DD cross section.

[0018] Figure label: 100. Storage mechanism; 110. First filtration chamber; 120. Second filtration chamber; 130. Third filtration chamber; 140. Feed inlet; 150. Grating; 160. Partition; 200. Separation mechanism; 300. Solidified soil pumping mechanism; 310. Pump body; 320. Conveying pipe; 170. Sealing component; 210. Support; 220. Separation component; 221. First drive motor; 222. Agitator; 223. First slag discharge valve; 224. Second slag discharge valve; 330. Hanger.

[0019] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] In the construction application of premixed fluidized bed concrete, conventional pouring methods have significant limitations. High-speed concrete pumps are expensive and not economically viable for small-volume pouring areas such as foundation pits and trenches; ground-mounted pumps require pump pipe supports, making them unsuitable for long-distance transportation and inconvenient to operate; gravity-flow methods have strict requirements on terrain conditions, requiring tank trucks to directly reach the pouring site, and can only achieve unidirectional pouring from higher to lower elevations, limiting their application scope. These factors collectively lead to reduced construction efficiency, limited material applicability, and affect the stable implementation of premixed fluidized bed concrete in backfilling projects.

[0024] For example, in the backfilling of foundation pits in nuclear power plants, the pits are deep and the surrounding area is narrow, making it impossible for concrete trucks to approach the pouring point. Furthermore, the terrain has local undulations, making it impossible to meet the elevation difference requirements for gravity-flow methods. In this scenario, using ground pumps requires frequent adjustments to the pump pipe rack position, increasing construction complexity; overhead pumps are uneconomical due to their small volume; and gravity-flow methods are completely impractical, leading to interruptions in pouring operations. Premixed fluidized solidified soil is also prone to segregation during transportation, affecting material uniformity and final strength.

[0025] This invention proposes a premixed fluidized solidified soil conveying device and system.

[0026] Please see Figures 1 to 5 For ease of understanding, this premixed fluidized solidified soil conveying device includes a storage mechanism 100, a separation mechanism 200, and a solidified soil pumping mechanism 300. The storage mechanism 100 has a first filter chamber 110, a second filter chamber 120, and a third filter chamber 130 arranged sequentially. The first filter chamber 110 has an inlet 140 and is located above the second filter chamber 120. A grid 150 is provided between the first filter chamber 110 and the second filter chamber 120. The grid 150 filters the premixed fluidized solidified soil flowing into the first filter chamber 110 from the inlet 140 and retains the aggregate in the premixed fluidized solidified soil. A partition is provided between the second filter chamber 120 and the third filter chamber 130. Plate 160 and separation mechanism 200 are installed in the second filter chamber 120. Separation mechanism 200 can stir the premixed fluidized solidified soil that has been filtered by grid 150 and flows into the second filter chamber 120. Separation mechanism 200 can separate the gravel in the premixed fluidized solidified soil and make the premixed fluidized solidified soil throw out and flip over the partition plate 160 to enter the third filter chamber 130. Solidified soil pumping mechanism 300 includes pump body 310 and conveying pipe 320. Pump body 310 is installed in the third filter chamber 130. One end of conveying pipe 320 is connected to pump body 310 and the other end passes through storage mechanism 100 and extends to the area to be constructed. Pump body 310 can draw the premixed fluidized solidified soil in the third filter chamber 130 and spray it to the area to be constructed through conveying pipe 320.

[0027] Specifically, premixed fluidized bed solidified soil is a new type of green material made by mixing solidifying agent, admixture, water, and soil. This material has excellent fluidity and exhibits significant strength after solidification, and is therefore widely used in backfilling of foundation pits, fertilizer tanks, and other areas to achieve energy conservation, emission reduction, and comprehensive utilization of industrial solid waste.

[0028] The storage mechanism 100 has a first filter chamber 110, a second filter chamber 120, and a third filter chamber 130 arranged sequentially. The first filter chamber 110 has an inlet 140 and is located above the second filter chamber 120. A grid 150 is provided between the first filter chamber 110 and the second filter chamber 120. The grid 150 filters the premixed fluidized solidified soil flowing into the first filter chamber 110 from the inlet 140 and traps the aggregate in the premixed fluidized solidified soil. A partition 160 is provided between the second filter chamber 120 and the third filter chamber 130. Alternatively, the storage mechanism 100 can be a large open container with multiple independent chambers formed internally by welding or integral molding. These chambers can be designed in a stepped arrangement, allowing material to flow from one chamber to the next by gravity. For example, the first filter chamber 110 can be a top-opening trough for receiving material. The inlet 140 can be a wide opening to facilitate material pouring. The grid 150 can be a metal mesh or perforated plate fixed between the bottom of the first filter chamber 110 and the top of the second filter chamber 120, with the aperture size selected according to the size of the stone to be filtered, such as a simple welded steel mesh. The baffle 160 can be a vertical baffle disposed between the second filter chamber 120 and the third filter chamber 130, with its height slightly lower than the top edge of the second filter chamber 120, allowing material to overflow over the baffle 160 and enter the third filter chamber 130 after reaching a certain liquid level.

[0029] Separation mechanism 200 is installed inside the second filtration chamber 120. This separation mechanism 200 agitates the premixed fluidized bed soil that has passed through the grid 150 and flows into the second filtration chamber 120. It separates the gravel from the premixed fluidized bed soil and throws it over the partition 160 into the third filtration chamber 130. Alternatively, the separation mechanism 200 can be a simple rotating blade device driven by a motor, with blades fixed to a rotating shaft. This device is installed inside the second filtration chamber 120, and its blades can reach deep into the bottom of the chamber to agitate the flowing premixed fluidized bed soil. The purpose of agitation is to maintain the fluidity of the bed soil and to cause denser stones to settle or be thrown out. For example, an electric agitator 222 fixed to the top of the chamber can be used, with its agitator rod and blades extending into the chamber. The blades of the agitator 222 can be designed as a propeller or paddle to produce sufficient agitation. Through stirring, the gravel in the premixed fluidized solidified soil can be effectively separated. At the same time, the centrifugal force or driving force generated by stirring can enable the solidified soil to overcome the height of the partition 160 and enter the third filter chamber 130.

[0030] The solidified soil pumping mechanism 300 includes a pump body 310 and a delivery pipe 320. The pump body 310 is installed inside the third filter chamber 130. One end of the delivery pipe 320 is connected to the pump body 310, and the other end passes through the storage mechanism 100 and extends to the area to be constructed. The pump body 310 can draw the premixed fluidized solidified soil in the third filter chamber 130 and spray it into the area to be constructed through the delivery pipe 320. Alternatively, the solidified soil pumping mechanism 300 can be a conventional mud pump or concrete pump, with its pump body 310 placed directly at the bottom of the third filter chamber 130. The pump body 310 can also be a submersible pump, directly immersed in the premixed fluidized solidified soil in the third filter chamber 130, drawing in the solidified soil through its suction port.

[0031] In this embodiment, by setting up a storage mechanism 100, a segregation mechanism 200, and a solidified soil pumping mechanism 300, during use, a first filter chamber 110, a second filter chamber 120, and a third filter chamber 130 are formed on the storage mechanism 100 and are connected in sequence. The first filter chamber 110 is provided with an inlet 140 and is located above the second filter chamber 120. A grid 150 is provided between the first filter chamber 110 and the second filter chamber 120. The grid 150 can filter the material from the inlet 140. The premixed fluidized solidified soil flows into the first filtration chamber 110, trapping the stones within it. A partition 160 is installed between the second filtration chamber 120 and the third filtration chamber 130, thus forming a three-stage filtration structure on the storage mechanism 100. This allows the premixed fluidized solidified soil to be filtered during pumping and pouring operations, preventing stones in the premixed fluidized solidified soil from clogging and damaging the solidified soil pumping mechanism 300. Simultaneously, a segregation mechanism 200 is installed in the second filtration chamber 110. Inside the filtration chamber 120, the separation mechanism 200 can stir the premixed fluidized solidified soil that has passed through the grid 150 and flows into the second filtration chamber 120. The separation mechanism 200 can separate the gravel in the premixed fluidized solidified soil and cause the premixed fluidized solidified soil to be thrown over the partition 160 and enter the third filtration chamber 130. This allows the present invention to further separate the stone particles in the premixed fluidized solidified soil, so that even smaller stone particles can be separated, ensuring the smoothness of the premixed fluidized solidified soil. The solidified soil pumping mechanism 300 includes a pump body 310. The pump body 310 is installed in the third filter chamber 130 along with the delivery pipe 320. One end of the delivery pipe 320 is connected to the pump body 310, and the other end passes through the storage mechanism 100 and extends to the area to be constructed. The pump body 310 can draw the premixed fluidized solidified soil in the third filter chamber 130 and spray it to the area to be constructed through the delivery pipe 320. This makes the pumping and pouring process of the premixed fluidized solidified soil no longer restricted by the terrain elevation. The premixed fluidized solidified soil can be pumped to different locations, improving the portability and smoothness of the pouring of the premixed fluidized solidified soil.

[0032] In one embodiment, the grid 150 is inclinedly disposed above the second filter chamber 120 so that the bottom of the first filter chamber 110 forms an inclined filter surface.

[0033] Specifically, the grating 150 is inclinedly disposed above the second filter chamber 120, meaning that the grating 150 is located inside the storage mechanism 100, between the first filter chamber 110 and the second filter chamber 120, and is installed at a non-horizontal angle. This inclined arrangement can be achieved in various ways; for example, the grating 150 itself can be prefabricated with a certain degree of inclination, or the grating 150 can be mounted on a frame with an inclined support surface. The purpose is to utilize gravity to allow the stones trapped by the grating 150 to slide along the inclined direction, thereby preventing accumulation on the surface of the grating 150.

[0034] The bottom of the first filter chamber 110 forms an inclined filter surface, meaning that due to the inclined arrangement of the grid 150, the filter interface between the first filter chamber 110 and the second filter chamber 120 exhibits a certain slope. This inclined filter surface is a direct result of the inclined arrangement of the grid 150, providing a physical basis for the filtration of premixed fluidized solidified soil and the discharge of aggregates. This filter surface can be a continuous slope or a combination of multiple stepped or wavy inclined sections, as long as it allows for effective sliding of the aggregates.

[0035] In this embodiment, by tilting the grid 150 above the second filter chamber 120, an inclined filter surface is formed at the bottom of the first filter chamber 110. When the premixed fluidized bed soil flows into the first filter chamber 110 from the inlet 140, the stones in the premixed fluidized bed soil are trapped by the grid 150. Due to the inclined arrangement of the grid 150, these trapped stones slide along the inclined filter surface under the action of gravity, instead of remaining on the filter surface and accumulating. This self-cleaning mechanism effectively prevents the grid 150 from clogging, ensuring that the premixed fluidized bed soil can continuously and smoothly pass through the grid 150 into the second filter chamber 120. This not only improves the filtration efficiency but also ensures the stable operation of the subsequent segregation mechanism 200 and the bed soil pumping mechanism 300, thereby improving the overall performance and reliability of the entire premixed fluidized bed soil conveying device.

[0036] In one embodiment, a slag discharge port is formed at the bottom of the first filter chamber 110, and a sealing member 170 is provided on the slag discharge port. The sealing member 170 has an open state and a closed state. In the open state, the stone can be discharged out of the first filter chamber 110 through the slag discharge port. In the closed state, the grid 150 can filter the premixed fluidized solidified soil that enters the first filter chamber 110 through the feed inlet 140 and retain the stone.

[0037] Specifically, the slag discharge port formed at the bottom of the first filter chamber 110 is an opening specifically designed to discharge accumulated solid impurities, particularly stones trapped by the grid 150. This discharge port can be a circular, square, or rectangular opening, sized sufficiently to allow the trapped stones to pass through smoothly. The discharge port is typically located at the lowest point of the first filter chamber 110 to facilitate gravity-assisted slag removal. Alternatively, the discharge port can be designed as a narrow slit to allow the discharge of stones of different shapes and sizes while minimizing impact on the chamber's structural strength. A sealing element 170 installed on the discharge port is a movable component used to control its opening and closing, thereby controlling the stone discharge. The sealing element 170 can be a gate valve, manually or electrically operated to open or close the discharge port. Alternatively, it can be a rotary valve, controlled by rotation to open or close the discharge port. In addition, various types of valves, such as butterfly valves and ball valves, can be used as sealing components 170 to adapt to different operational needs and environmental conditions. The sealing component 170 has two states: an open state, where it allows stone to be discharged through the slag discharge port; and a closed state, where it completely seals the slag discharge port, preventing the passage of stone or pre-mixed fluidized solidified soil. The open state can be achieved by fully opening the gate valve or rotating the rotary valve to the fully open position. The closed state can be achieved by fully pushing the gate valve in or rotating the rotary valve to the fully closed position. Switching between these two states can be achieved through mechanical linkage, hydraulic drive, or pneumatic drive. In the open state, stone can be discharged through the slag discharge port to the outside of the first filter chamber 110. This function ensures that accumulated stone in the first filter chamber 110 can be effectively discharged when cleaning is required, avoiding the hassle of manual cleaning and improving cleaning efficiency. When the sealing element 170 is open, the stones accumulated at the bottom of the first filter chamber 110 will be automatically discharged through the slag discharge port due to gravity. Vibration devices or flushing water can be used to further assist in the discharge of stones. In the closed state, the grid 150 filters the premixed fluidized bedrock entering the first filter chamber 110 through the feed inlet 140 and retains the stones. This function ensures that the slag discharge port is closed under normal operating conditions, thereby guaranteeing that the premixed fluidized bedrock can pass through the grid 150 for filtration normally without leakage from the slag discharge port, maintaining the integrity and efficiency of the filtration process. When the sealing element 170 is closed, the slag discharge port is completely sealed, and the first filter chamber 110 forms a closed container, requiring all incoming premixed fluidized bedrock to pass through the grid 150 for filtration, thus achieving effective retention of the stones.

[0038] During operation, premixed fluidized bed soil enters the first filtration chamber 110 through the inlet 140. At this time, the sealing element 170 is closed to ensure that the premixed fluidized bed soil does not leak from the discharge port. The premixed fluidized bed soil flows into the inclined grid 150 within the first filtration chamber 110, where the grid 150 traps the stones, and the filtered premixed fluidized bed soil flows into the second filtration chamber 120. As the filtration process continues, the trapped stones gradually accumulate at the bottom of the first filtration chamber 110. When it is necessary to remove these accumulated stones, the operator can switch the sealing element 170 to the open position. At this time, the discharge port is opened, and the stones accumulated at the bottom of the first filtration chamber 110 can be smoothly discharged to the outside of the chamber under gravity. This design makes the stone cleaning process simple and efficient, avoiding the tediousness of manual cleaning, and ensuring that the filtration efficiency of the grid 150 does not decrease due to stone accumulation. By switching between filtration and slag discharge modes, this solution effectively solves the problem of decreased filtration efficiency caused by stone accumulation, ensuring the continuous and stable operation of the device.

[0039] In one embodiment, the filter holes on the grid 150 are rectangular or circular holes, and the filter holes can trap stones with a diameter greater than 2 cm.

[0040] Specifically, filter orifices are openings on the grid 150 used to allow premixed fluidized solidified soil to pass through while trapping aggregate. Designing them as rectangular or circular orifices is based on the universality and effectiveness of these geometries in filtration applications. Rectangular orifices can be formed by stamping metal sheets or by weaving metal wire mesh, characterized by good flow capacity and, in some cases, better adaptability to the passage or trapping of particles of different shapes. Circular orifices are typically formed on metal sheets by drilling or stamping processes, offering high structural strength, resistance to deformation, and good performance in uniform particle separation. Both orifice types are easy to standardize in production and maintenance and exhibit good anti-clogging performance in practical applications. Furthermore, this feature clarifies the dimensional design objective of the filter orifices: to ensure that all aggregate with a diameter greater than 2 cm is effectively blocked above the grid 150. For rectangular orifices, the shorter side dimension is typically less than or equal to 2 cm to ensure that aggregate with a diameter greater than 2 cm cannot pass through. For circular orifices, the diameter is typically less than or equal to 2 cm to achieve the same trapping effect. This size limit is based on the actual requirements for the particle size of the aggregate in the premixed fluidized solidified soil and considerations for the protection of subsequent equipment. It aims to prevent excessively large aggregates from entering the second filtration chamber 120, thereby avoiding potential damage or blockage to the segregation mechanism 200 and the pumping mechanism.

[0041] When the premixed fluidized bed soil enters the first filter chamber 110 through the inlet 140, it flows towards the inclined grid 150. The filter holes on the grid 150 are designed as rectangular or circular holes, and the size of these holes is precisely set to ensure that stones with a diameter greater than 2 cm can be retained. This specific hole design, such as regular rectangles or circles, effectively reduces the probability of stones getting stuck or blocked when passing through the grid 150 compared to irregularly shaped holes, thus ensuring smooth filtration of the premixed fluidized bed soil. At the same time, because the grid 150 is inclined, the stones with a diameter greater than 2 cm that are retained will slide along the inclined filter surface under the action of gravity and eventually be discharged through the slag discharge port at the bottom of the first filter chamber 110. This synergy in structure and function enables the grating 150 to efficiently filter large-sized stones while also achieving automatic or semi-automatic stone removal, preventing stone accumulation on the grating 150, thus maintaining continuous filtration capacity and effectively protecting the normal operation of the subsequent segregation mechanism 200 and the solidified soil pumping mechanism 300.

[0042] In one embodiment, the separation mechanism 200 includes a support 210 and a separation component 220. The support 210 is installed in the second filter chamber 120 and is spaced apart from the grid 150. The separation component 220 is installed on the support 210 and can extend to the bottom of the second filter chamber 120. The separation component 220 can stir the premixed fluidized solidified soil that has been filtered by the grid 150 and flows into the second filter chamber 120 to separate out the gravel and cause the premixed fluidized solidified soil to be thrown out and flipped over the partition 160 into the third filter chamber 130.

[0043] In this embodiment, by setting a support 210 and a separation component 220 in the second filtration chamber 120, the function of the separation mechanism 200 is made concrete and efficiently realized. When the premixed fluidized solidified soil filtered by the grid 150 flows into the second filtration chamber 120, the separation component 220 installed on the support 210 begins to work. The separation component 220 extends to the bottom of the second filtration chamber 120, and can thoroughly and fully mix the premixed fluidized solidified soil in the chamber. During the mixing process, due to the fluidity of the premixed fluidized solidified soil and the density difference between the stone and the soil, the mechanical force generated by the separation component 220 can effectively promote the separation of the crushed stone from the fluidized soil. At the same time, the mixing motion of the separation component 220 also gives the premixed fluidized solidified soil a certain kinetic energy, so that under the action of centrifugal force or thrust, it can overcome the height of the partition 160, be thrown out and flip over the partition 160, and smoothly enter the third filtration chamber 130. The spaced arrangement of the support 210 and the grid 150 ensures sufficient operating space for the segregation component 220 within the second filtration chamber 120, avoiding interference with the grid 150. This guarantees the smooth operation of the segregation mechanism 200 and the maintenance of the filtration effect. This structural combination makes the segregation and transfer process of premixed fluidized solidified soil more controllable and efficient, solving the problem that effective separation and continuous conveying are difficult to achieve based solely on functional descriptions.

[0044] In one embodiment, the separation component 220 includes a first drive motor 221 and a stirrer 222. The first drive motor 221 is mounted on the bracket 210, and the output shaft of the first drive motor 221 is arranged downward. The stirrer 222 is mounted on the output shaft of the first drive motor 221 and can extend to the bottom of the second filter chamber 120. The first drive motor 221 can drive the stirrer 222 to stir the premixed fluidized solidified soil that has been filtered by the grid 150 and flows into the second filter chamber 120, so as to separate out the gravel and make the premixed fluidized solidified soil throw out and flip over the partition 160 into the third filter chamber 130.

[0045] In this embodiment, by combining the first drive motor 221 with the agitator 222, a clear and efficient power source and actuating component are provided for the separation mechanism 200. Specifically, the first drive motor 221 is securely mounted on a bracket 210 within the second filter chamber 120, with its output axis extending downwards and directly connected to the agitator 222. When the premixed fluidized solidified soil is filtered through the grid 150 and flows into the second filter chamber 120, the first drive motor 221 starts and drives the agitator 222 to rotate at high speed. The agitator 222 powerfully stirs the premixed fluidized solidified soil in the bottom region of the second filter chamber 120. This stirring action not only maintains the good fluidity of the solidified soil and prevents sedimentation and agglomeration, but more importantly, the centrifugal force and shear force generated by stirring can effectively further separate out the residual gravel in the premixed fluidized solidified soil that was not completely intercepted by the grid 150. Simultaneously, during rotation, the mixer 222 generates upward thrust and radial throwing force, effectively ejecting the segregated premixed fluidized solidified soil, which then tumbles over the baffle 160 and enters the third filtration chamber 130, preparing it for subsequent pumping operations. This driving method ensures the continuity and thoroughness of the segregation process, significantly improving the processing efficiency and quality of the premixed fluidized solidified soil.

[0046] In one embodiment, a first cleaning port is provided at the bottom of the second filter chamber 120, and a first slag discharge valve 223 is installed on the first cleaning port. The first slag discharge valve 223 has a first closed state and a first cleaning state. In the first closed state, the first drive motor 221 can drive the stirrer 222 to stir the premixed fluidized solidified soil in the second filter chamber 120 to separate the gravel therein and make the premixed fluidized solidified soil throw out and flip over the partition 160 into the third filter chamber 130. In the first cleaning state, the first slag discharge valve 223 can open the first cleaning port to clean the second filter chamber 120.

[0047] In this embodiment, by adding a first cleaning port and a first slag discharge valve 223 to the bottom of the second filter chamber 120, the problem of material accumulation inside the second filter chamber 120 is effectively solved. During normal operation of the device, the first slag discharge valve 223 is in the first closed state, ensuring that the second filter chamber 120 forms a closed space, so that the first drive motor 221 can drive the agitator 222 to efficiently stir and separate the premixed fluidized solidified soil, and throw the processed material over the partition 160 into the third filter chamber 130. When maintenance or cleaning of the second filter chamber 120 is required, the operator can switch the first slag discharge valve 223 to the first cleaning state, at which time the first slag discharge valve 223 opens the first cleaning port. Through the first cleaning port, the accumulated gravel and residual premixed fluidized solidified soil at the bottom of the second filter chamber 120 can be easily discharged, or cleaning fluid can be introduced to flush the inside of the chamber. This design makes cleaning the second filter chamber 120 simple and efficient, avoiding problems such as decreased mixing efficiency, increased equipment wear or blockage caused by material accumulation, thus ensuring the long-term stable operation of the segregation mechanism 200 and the continuous operation capability of the entire premixed fluidized solidified soil conveying device.

[0048] The slag discharge valve also has a second function: when the soil material used for solidification is not gravel or stones, but all muddy soil, this solidification device can be used as a solidification soil transfer box. A hose can be connected to the outside of the slag discharge valve, and the solidified soil can be transported through the slag discharge valve. The transfer box can improve the unloading efficiency of the tanker truck, achieving 100% unloading to the transfer box, and then transporting it to the work site through the transfer box. This avoids the problem of tanker trucks waiting for a long time on site due to the process or discontinuity of the pouring point, and also solves the problem of the interruption of solidification soil backfilling caused by the inability of tanker trucks to supply continuously.

[0049] In one embodiment, a second cleaning port is also provided in the third filter chamber 130, and a second slag discharge valve 224 is installed on the second cleaning port. The second slag discharge valve 224 has a second closed state and a second cleaning state. In the second closed state, the pump body 310 can suck up the premixed fluidized solidified soil in the third filter chamber 130 and spray it to the construction area through the delivery pipe 320. In the second cleaning state, the second slag discharge valve 224 can open the second cleaning port to clean the third filter chamber 130.

[0050] In this embodiment, by adding a second cleaning port and a second slag discharge valve 224 to the third filter chamber 130, the problem of residue accumulation in the third filter chamber 130 during long-term operation of the premixed fluidized solidified soil conveying device is effectively solved. During normal operation, i.e., when the pump body 310 of the solidified soil pumping mechanism 300 draws the premixed fluidized solidified soil from the third filter chamber 130 and sprays it through the conveying pipe 320 to the area to be constructed, the second slag discharge valve 224 is in a second closed state. At this time, the second cleaning port is completely closed, ensuring the sealing of the third filter chamber 130, allowing the pump body 310 to efficiently and leak-free complete the material conveying task. When the conveying operation is completed or when equipment maintenance and cleaning are required, the operator can switch the second slag discharge valve 224 to the second cleaning state. In this state, the second cleaning port is opened, forming a smooth discharge channel. At this point, a cleaning solution (such as clean water) can be injected into the third filtration chamber 130. The cleaning solution flushes and dissolves any residues of the premixed fluidized solidified soil adhering to the inner wall or bottom of the chamber. The flushed residues and cleaning solution are discharged from the chamber through the opened second cleaning port, thus achieving a thorough cleaning of the third filtration chamber 130. This design makes cleaning the third filtration chamber 130 simple and efficient, avoiding blockages and corrosion caused by long-term residue accumulation, and ensuring the stable operation of the solidified soil pumping mechanism 300 and the long-term reliability of the entire conveying device.

[0051] In one embodiment, the solidified soil pumping mechanism 300 further includes a hanger 330, which is installed in the third filter chamber 130. The pump body 310 is connected to the hanger 330, and the suction port of the pump body 310 extends to the bottom of the third filter chamber 130.

[0052] In this embodiment, by setting a hanger 330 inside the third filter chamber 130 and mounting the pump body 310 through the hanger 330, it is ensured that the suction port of the pump body 310 can stably and effectively extend to the bottom of the third filter chamber 130. When the premixed fluidized solidified soil enters the third filter chamber 130 after being processed by the first filter chamber 110 and the second filter chamber 120, the pump body 310 of the solidified soil pumping mechanism 300 can start to suck up the material from the bottom of the chamber. This structural configuration allows the pump body 310 to maximize the suction of the premixed fluidized solidified soil in the third filter chamber 130, avoiding the accumulation or residue of material at the bottom of the chamber. Since the suction port of the pump body 310 can reach the bottom of the chamber, the pump body 310 can continue to work effectively during the pumping process, even if the liquid level of the material in the chamber decreases, until most of the material is sucked up. This design not only improves the utilization rate of premixed fluidized solidified soil and reduces material waste, but also facilitates subsequent equipment cleaning work because the amount of residual material in the chamber is greatly reduced, making the cleaning process more thorough and efficient.

[0053] Based on the same technical concept, in a second aspect, the present invention also proposes a premixed fluidized solidified soil conveying system, including the premixed fluidized solidified soil conveying device of the first aspect.

[0054] Specifically, this application proposes a premixed fluidized bed solidified soil conveying system, including the premixed fluidized bed solidified soil conveying device as described above. The premixed fluidized bed solidified soil conveying device includes a storage mechanism 100, a segregation mechanism 200, and a solidified soil pumping mechanism 300. The storage mechanism 100 has a first filter chamber 110, a second filter chamber 120, and a third filter chamber 130 arranged sequentially. The first filter chamber 110 is provided with an inlet 140 and is located above the second filter chamber 120. A grid 150 is provided between the first filter chamber 110 and the second filter chamber 120. The grid 150 can filter the premixed fluidized bed solidified soil flowing into the first filter chamber 110 from the inlet 140 and retain the aggregate in the premixed fluidized bed solidified soil. A partition 160 is provided between the second filter chamber 120 and the third filter chamber 130. The separation mechanism 200 is installed in the second filter chamber 120. The separation mechanism 200 can agitate the premixed fluidized solidified soil that has been filtered by the grid 150 and flows into the second filter chamber 120. The separation mechanism 200 can separate the gravel in the premixed fluidized solidified soil and cause the premixed fluidized solidified soil to be thrown over the partition 160 and enter the third filter chamber 130. The solidified soil pumping mechanism 300 includes a pump body 310 and a delivery pipe 320. The pump body 310 is installed in the third filter chamber 130. One end of the delivery pipe 320 is connected to the pump body 310, and the other end passes through the storage mechanism 100 and extends to the area to be constructed. The pump body 310 can draw the premixed fluidized solidified soil in the third filter chamber 130 and spray it into the area to be constructed through the delivery pipe 320.

[0055] In this embodiment, by integrating the storage mechanism 100, the segregation mechanism 200, and the solidified soil pumping mechanism 300 into the conveying system, a multi-stage filtration and active segregation synergistic processing mechanism is formed, thereby effectively removing stones from the premixed fluidized solidified soil and maintaining its fluidity. This achieves the conveying effect of adapting to small-volume dispersed construction, avoiding pump blockage, and not relying on special terrain. Specifically, addressing the technical challenges of conventional overhead pumps (high cost), ground pumps (requiring pump pipe supports and unsuitable for long-distance transportation), and gravity-flow systems (high terrain requirements), this application's system utilizes a multi-chamber structure in the storage mechanism 100 to achieve stepped material processing: the first filtration chamber 110 uses a grid 150 to trap stones larger than 2cm in diameter, preventing large particles from entering subsequent stages; the separation mechanism 200 in the second filtration chamber 120 actively separates crushed stone through stirring, and centrifugal force causes the pre-mixed fluidized solidified soil to overturn the baffle 160 and enter the third filtration chamber 130, preventing material sedimentation and solidification while ensuring impurity separation; the pump body 310 in the third filtration chamber 130, in conjunction with the conveying pipe 320, enables precise long-distance transport of the processed material. Because this system integrates filtration, separation, and pumping functions, it solves the transport bottleneck during backfilling of small, dispersed areas, eliminating the need for direct tanker truck access or terrain with elevation differences, while also avoiding the blockage risk caused by impurities in traditional pumping equipment.

[0056] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the protection scope of the present invention.

Claims

1. A premixed fluidized solidified soil conveying device, characterized in that, include: A material storage mechanism is provided, comprising a first filter chamber, a second filter chamber, and a third filter chamber arranged in sequence. The first filter chamber is provided with a feed inlet and is located above the second filter chamber. A grid is provided between the first filter chamber and the second filter chamber. The grid can filter the premixed fluidized solidified soil flowing into the first filter chamber from the feed inlet and retain the stone in the premixed fluidized solidified soil. A partition is provided between the second filter chamber and the third filter chamber. A separation mechanism, installed within the second filtration chamber, is capable of agitating the premixed fluidized solidified soil that has passed through the grid and flows into the second filtration chamber. The separation mechanism also separates out gravel from the premixed fluidized solidified soil and causes it to be thrown over the partition and enter the third filtration chamber. A solidified soil pumping mechanism includes a pump body and a delivery pipe. The pump body is installed in the third filter chamber. One end of the delivery pipe is connected to the pump body, and the other end passes through the storage mechanism and extends to the area to be constructed. The pump body can draw the premixed fluidized solidified soil in the third filter chamber and spray it to the area to be constructed through the delivery pipe.

2. The premixed fluidized solidified soil conveying device as described in claim 1, characterized in that, The grid is inclinedly disposed above the second filter chamber, so that the bottom of the first filter chamber forms an inclined filter surface.

3. The premixed fluidized solidified soil conveying device as described in claim 2, characterized in that, The bottom of the first filter chamber has a slag discharge port, and a sealing element is provided on the slag discharge port. The sealing element has an open state and a closed state. In the open state, the stone material can be discharged out of the first filter chamber through the slag discharge port; in the closed state, the grid can filter the premixed fluidized solidified soil that enters the first filter chamber through the feed port and retain the stone material.

4. The premixed fluidized solidified soil conveying device as described in claim 3, characterized in that, The filter holes on the grid are rectangular or circular, and the filter holes can trap stones with a diameter greater than 2 cm.

5. The premixed fluidized solidified soil conveying device according to any one of claims 1 to 4, characterized in that, The separation mechanism includes: A bracket is installed in the second filter chamber, and the bracket is spaced apart from the grid. A separation component is installed on the support and extends to the bottom of the second filter chamber. The separation component can stir the premixed fluidized solidified soil that has passed through the grid and flowed into the second filter chamber to separate the gravel and throw the premixed fluidized solidified soil over the partition into the third filter chamber.

6. The premixed fluidized solidified soil conveying device as described in claim 5, characterized in that, The separation component includes: A first drive motor, mounted on the bracket, with its output shaft facing downwards; and... A stirrer is installed on the output shaft of the first drive motor and extends to the bottom of the second filter chamber. The first drive motor drives the stirrer to stir the premixed fluidized solidified soil that has been filtered by the grid and flows into the second filter chamber, so as to separate the gravel and throw the premixed fluidized solidified soil over the partition and enter the third filter chamber.

7. The premixed fluidized solidified soil conveying device as described in claim 6, characterized in that, The bottom of the second filter chamber is provided with a first cleaning port, and a first slag discharge valve is installed on the first cleaning port. The first slag discharge valve has a first closed state and a first cleaning state. In the first closed state, the first drive motor can drive the agitator to stir the premixed fluidized solidified soil in the second filter chamber to separate the gravel therein and make the premixed fluidized solidified soil throw out and flip over the partition to enter the third filter chamber. In the first cleaning state, the first slag discharge valve can open the first cleaning port to clean the second filter chamber.

8. The premixed fluidized solidified soil conveying device according to any one of claims 1 to 4, characterized in that, The third filter chamber is also provided with a second cleaning port, and a second slag discharge valve is installed on the second cleaning port. The second slag discharge valve has a second closed state and a second cleaning state. In the second closed state, the pump body can draw the premixed fluidized solidified soil in the third filter chamber and spray it to the construction area through the delivery pipe. In the second cleaning state, the second slag discharge valve can open the second cleaning port to clean the third filter chamber.

9. The premixed fluidized solidified soil conveying device according to any one of claims 1 to 4, characterized in that, The solidified soil pumping mechanism also includes a hanger, which is installed in the third filter chamber. The pump body is connected to the hanger, and the suction port of the pump body extends to the bottom of the third filter chamber.

10. A premixed fluidized solidified soil conveying system, characterized in that, It includes a premixed fluidized solidified soil conveying device as described in any one of claims 1 to 9.

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