Multi-layer crushing-stirring self-compacting flow-state self-congealing solidified soil manufacturing device

Abstract

The utility model provides a multi-layer crushing-stirring self-compaction flow-state self-coagulation solidified soil manufacturing device. A top pre-separation device, a middle soil breaking and stirring device and a bottom vortex soil breaking and stirring device are sequentially arranged in a flow-state soil stirring box from top to bottom. The middle soil breaking and stirring device can gradually refine original soil, and the bottom vortex soil breaking and stirring device further crushes the original soil and conducts vortex mixing and stirring on the original soil and the formed flow-state solidified soil slurry. The stirring mode can ensure the uniform mixing of the curing agent and the soil, effectively avoids the generation of precipitates, and ensures the uniformity of the slurry. In addition, the vortex soil breaking and stirring device further has an upward supporting function, surrounding curing agent slurry or process fluid soil can be upwards supported to form backflow, smashing and stirring treatment continues under the action of the middle soil breaking and stirring device, original soil particles are further refined, and meanwhile the stirring uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the production of fluidized solidified soil, in particular to a multi-layer crushing-stirring self-compacting fluidized self-solidifying soil production device. Background Art

[0002] In the field of underground engineering, including foundation pits, underground cavities (such as mining pits and caves, karst caves, etc.), underground pipelines, underground pipeline corridors, etc., backfill issues are often involved. How to reasonably and effectively use the surrounding waste soil to carry out high-quality backfill for the above-mentioned projects is an effective way to realize the resource utilization of waste soil and practice "green rock and soil".

[0003] The most common method currently used is to utilize waste soil as a resource by using fluidized solidified soil. The usual practice is to first add water to the waste soil and mix it to turn it into fluidized soil. At the same time, additives such as dispersants and solidifiers are added. After mixing evenly, it is used as filler for construction. The following problems often occur during actual construction:

[0004] (1) When clay soil is used as filling material, it is difficult to completely crush it due to its high water content and good compressibility. It is often necessary to add a certain amount of granular mixture to improve the gradation in order to achieve the fluidity of the fluid soil. The entire construction process is cumbersome;

[0005] (2) Most construction parties consider the use of solid additives to prepare qualified fluidized soil by configuring a relatively precise ratio of materials. However, in actual operation, due to the complex composition of the abandoned soil, which may contain clay, sandy soil, gravel, brick concrete and other construction waste, the above-mentioned special curing agents often fail to achieve the expected results. The treatment process is time-consuming, energy-intensive, inefficient and costly.

[0006] (3) The existing processing equipment has a single function and often only uses stirring to crush and stir the raw materials. During the production process, uneven conditions such as process flow soil agglomeration and sedimentation often occur, and the engineering filling effect is average. Utility Model Content

[0007] The purpose of the present utility model is to address the deficiencies of the above-mentioned technologies and to propose a multi-layer crushing-mixing self-compacting fluidized self-setting soil production device and method. The initial crushing of traditional clay soil is achieved by providing a top pre-separation device and a middle soil-breaking and mixing device, and further crushing and sufficient mixing of the soil layer are achieved by providing a bottom vortex soil-breaking and mixing device. The above-mentioned device effectively solves the difficult problems of high crushing difficulty and uneven mixing of large amounts of raw soil in the traditional mixing process. Its construction process is clear, highly effective, low-cost, and highly feasible, and it has the value of promotion and implementation. In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows:

[0008] A multi-layer crushing-mixing self-compacting fluidized self-setting solidifying soil production device, comprising a fluidized soil mixing box and a curing agent slurry premixing box connected to the fluidized soil mixing box, wherein the curing agent slurry premixing box is used to transport the curing agent slurry to the fluidized soil mixing box;

[0009] The top of the fluidized soil mixing box is provided with a feed port, and inside the fluidized soil mixing box are provided with a top pre-separation device, a middle soil breaking and stirring device, and a bottom vortex soil breaking and stirring device from top to bottom;

[0010] The middle soil-breaking and stirring device includes a plurality of vertically rotating second soil-breaking rollers, which rotate vertically and are circumferentially provided with a plurality of second soil-breaking and stirring blades on the outer diameter; the bottom vortex soil-breaking and stirring device includes a plurality of bottom vortex agitators rotating in the horizontal direction, and each bottom vortex agitator is provided with a bottom vortex rotating shaft and vortex blades installed on the bottom vortex rotating shaft.

[0011] Furthermore, a feeding bin is installed on the top of the feed port, and the feeding bin has an opening that is wide at the top and narrow at the bottom, and a discharge port is provided on one side of the bottom of the fluidized soil mixing box;

[0012] Removable baffles located on the top of the top pre-separation device are provided on both sides of the inside of the feeding bin.

[0013] Furthermore, the top pre-separation device includes:

[0014] Grid-like steel screens with a top pre-separator consisting of a number of inverted "V"-shaped screen bars staggered horizontally and vertically; and / or

[0015] A row of first breaking rollers, each of which is provided with a first breaking blade on its outer diameter, wherein the first breaking blades of adjacent first breaking rollers are staggered and interlocked, and the first breaking blades are thin sheet-like or sawtooth-like blades radially installed on the outer diameter of the first breaking roller;

[0016] The speed and direction of the first breaking roller are adjustable individually.

[0017] Furthermore, the top pre-separation device includes a grid-shaped steel screen and a row of first soil-breaking rollers located below the grid-shaped steel screen, and the first soil-breaking blades can rotate to a position beyond the top surface of the grid-shaped steel screen.

[0018] Furthermore, the first soil-breaking rollers are distributed at the same height in the fluidized soil mixing box, or

[0019] A row of first rollers of different heights are arranged in a continuous Z-shape and staggered up and down in the fluidized soil mixing box.

[0020] Furthermore, the central soil-breaking and stirring device includes at least one row of second soil-breaking rollers distributed along the horizontal X direction, with gaps left between the second soil-breaking and stirring blades of adjacent second soil-breaking rollers, the second soil-breaking and stirring blades being at least one layer of fan-shaped blades or wavy blades mounted on the second soil-breaking rollers, and the thickness of the second soil-breaking and stirring blades being greater than the thickness of the first soil-breaking blades;

[0021] The speed and direction of each second breaking roller can be adjusted individually.

[0022] Furthermore, a circle of vortex blades extending upward and forming a bowl shape is installed on the outer diameter of the bottom vortex rotating shaft, with gaps left between adjacent vortex blades;

[0023] At least one row of bottom vortex agitators of alternating sizes is distributed along the X direction at the bottom of the fluidized soil mixing box, and the height and width of the large bottom vortex agitators are both greater than those of the small bottom vortex agitators;

[0024] The speed and direction of each bottom vortex rotating shaft are individually adjustable.

[0025] Furthermore, the manufacturing device also includes a mobile support system, which includes a mobile support system platform, rigid support legs, and rollers.

[0026] The fluidized soil mixing box and the curing agent slurry premixing box are both installed on the upper surface of the mobile support system platform. A weighing device is provided between the mobile support system platform and the fluidized soil mixing box. A plurality of rigid support legs are installed at the bottom of the mobile support system platform, and a roller is installed at the bottom of each rigid support leg.

[0027] Furthermore, the production device also includes a control system, which is connected to the weighing device, the first soil-breaking roller of the top pre-separation device, the middle soil-breaking stirring device, the bottom vortex soil-breaking stirring device, and the curing agent slurry premixing box.

[0028] A method for producing dense fluidized self-setting soil based on the above-mentioned production device is to pour the raw soil into a fluidized soil mixing box, where the raw soil undergoes the following treatments in sequence:

[0029] 1) The top pre-separation device performs pre-separation treatment on the original soil;

[0030] 2) The vertically rotating second soil-breaking roller and second soil-breaking and stirring blade of the middle soil-breaking and stirring device crush and stir the original soil poured into the fluidized soil mixing box;

[0031] 3) The horizontally rotating bottom vortex soil breaking and stirring device vortexes the original soil and the curing agent slurry transported from the curing agent slurry premixing box. Under the action of the vortex stirring, the fluidized soil and curing agent slurry at the bottom flow upward and are crushed and stirred again by the second soil breaking roller and the second soil breaking and stirring blade.

[0032] The advantages of the utility model are:

[0033] (1) The device includes a pre-mixing device for the curing agent slurry, which ensures that the special curing agent is evenly mixed and pumped into the fluidized soil mixing box as the initial slurry, thereby ensuring the subsequent uniform mixing of the fluidized soil. The pre-mixing device can be operated automatically, saving labor costs and ensuring the uniform distribution of the curing agent, thereby improving the quality and stability of the fluidized soil.

[0034] (2) The device is equipped with a control system that can accurately control the amount of curing agent, the weight of the original soil, and the weight of the fluidized curing soil slurry throughout the construction process, thereby ensuring construction quality. By monitoring and recording various parameters in real time, it is highly automated and intelligent. In addition, the control system can also provide early warnings and automatic adjustments for various abnormal situations, thereby ensuring stability and reliability during the construction process.

[0035] (3) The top of the device is equipped with a top pre-separation device, which can effectively reduce the strong impact of large amounts of raw soil on the middle soil-breaking and mixing device, thereby protecting the device from damage. The top pre-separation device isolates the middle soil-breaking and mixing device from the large amounts of raw soil, ensuring the stable operation of the soil-breaking and mixing device.

[0036] (4) The fluidized soil mixing box is equipped with a middle soil-breaking and stirring device and a bottom vortex soil-breaking and stirring device. These devices are designed to crush the original soil in all directions and fully mix and stir it with the curing agent slurry. The middle soil-breaking and stirring device can gradually refine the original soil until it reaches the ideal particle size. This not only improves the uniformity of the soil quality, but also facilitates subsequent construction operations. The bottom vortex soil-breaking and stirring device vortex-mixes and stirs the formed fluidized solidified soil slurry. This stirring method can ensure the uniform mixing of the curing agent and the soil, effectively avoid the generation of precipitation, and ensure the uniformity of the slurry. In addition, the vortex soil-breaking and stirring device also has an upward support function, which can support the surrounding curing agent slurry and process fluidized soil to form a reflux, and continue to crush and stir under the action of the middle soil-breaking and stirring device, so that the original soil particles are further refined and the mixing uniformity is improved. This design enables the middle soil-breaking and stirring device to form multi-layer mixing in combination with the vortex soil-breaking and stirring device, further ensuring the stability and reliability of the construction quality.

[0037] (5) The above-mentioned device, combined with the construction method, simplifies the production process of fluidized solidified soil from traditional clay soil, making the operation more convenient and quick. This method also solves the problem of adding large amounts of raw soil in the traditional mixing process, reduces the waste of manpower and material resources, and improves production efficiency. By using this process, fluidized solidified soil that meets engineering requirements can be produced more efficiently, providing a more reliable solution for engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0039] Figure 1 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 1 of the present invention;

[0040] Figure 2 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 2 of the present utility model;

[0041] Figure 3 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 3 of the present invention;

[0042] Figure 4 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 4 of the present invention;

[0043] Figure 5 This is an external structural diagram of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in the fourth embodiment of the present invention;

[0044] Figure 6 This is an external structural diagram of a device for producing multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 5 of the present utility model;

[0045] Figure 7 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 5 of the present invention;

[0046] Figure 8 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 6 of the present utility model;

[0047] Figure 9 This is a cross-sectional view of the internal structure of a device for making multi-layer filtration-stirring self-compacting fluidized self-setting soil in Example 7 of the present utility model;

[0048] Figure 10 This is a cross-sectional view of the internal structure of a device for making multi-layer filtering-stirring self-compacting fluidized self-setting soil in Example 8 of the present utility model. DETAILED DESCRIPTION

[0049] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0050] In order to fully understand the present invention, detailed steps and detailed structures will be provided in the following description to illustrate the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other implementation methods.

[0051] Example 1

[0052] The present invention relates to a self-compacting fluidized self-setting soil manufacturing device and a construction method thereof. Figure 1 As shown, the production device mainly includes a feeding bin 1, a fluidized soil mixing box 2, a top pre-separation device 3, a middle soil breaking and stirring device 4, a bottom vortex soil breaking and stirring device 10, a curing agent slurry premixing box 6, a control system, and a mobile support system 8.

[0053] The feeding bin 1 is generally made of steel plate and is located above the top pre-separation device 3. The four sides must be appropriately inward along the upper opening of the fluidized soil mixing box 2. Its main function is to prevent the original soil from being scattered and the slurry from being thrown out during the fluidized soil mixing process.

[0054] The fluidized soil mixing box 2 is the main space for the production and storage of fluidized soil. Inside it, there are installed a top pre-separation device 3, a middle soil breaking and stirring device 4 and a bottom vortex soil breaking and stirring device 10 in sequence from top to bottom. A discharge port 2.1 is installed on one side of the bottom of the fluidized soil mixing box 2. After the fluidized soil is produced, it is pumped out through the discharge port 2.1.

[0055] In this embodiment, the top pre-separation device 3 is a steel grating composed of several transverse steel gratings 3.1 and longitudinal steel gratings 3.2. In order to facilitate the smooth entry of the original soil, the cross-section of the transverse steel gratings 3.1 and the longitudinal steel gratings 3.2 is an inverted "V" shape. The main function of the top pre-separation device 3 is to temporarily store the raw soil for feeding, so that the middle soil-breaking and stirring device 4 can gradually divide the raw soil into small pieces, which is convenient for subsequent further mixing and crushing while avoiding the impact and damage of a large amount of raw soil on the middle soil-breaking and stirring device 4.

[0056] The central soil-breaking and stirring device 4 comprises several second soil-breaking rollers 4.2 arranged parallel to each other along the X-axis. Each second soil-breaking roller 4.2 is fitted with a ring of second soil-breaking blades 4.1 on its outer diameter. Each second soil-breaking roller 4.2 rotates vertically, driving the second soil-breaking blades 4.1 to break up the soil. The second soil-breaking blades 4.1 can be thick, multi-layered fan-shaped blades or wavy blades.

[0057] The bottom vortex soil-breaking and stirring device 10 comprises several bottom vortex agitators arranged parallel to the X-direction. These agitators consist of a bottom vortex rotating shaft 10.2 and vortex blades 10.1. The horizontal rotation of the bottom vortex rotating shaft 10.2 drives the vertical vortex blades 10.1, performing secondary crushing and stirring of small clumps of soil entering the curing agent slurry or process-fluidized soil. Simultaneously, the vortex blades 10.1 support the surrounding curing agent slurry or process-fluidized soil, creating a reflux. Combined with the central soil-breaking and stirring device 4, this creates a multi-layered agitation process, preventing sedimentation and ensuring slurry uniformity.

[0058] A circle of upwardly extending, bowl-shaped vortex blades 10.1 is mounted on the outer diameter of the bottom vortex shaft 10.2. As the bottom vortex shaft 10.2 drives the vortex blades 10.1 to rotate, vortices are formed within them, thereby aiding in the crushing of the raw soil and thoroughly mixing it with the curing agent slurry. It is desirable to leave gaps between adjacent vortex blades 10.1 to facilitate the flow of the raw soil-curing agent slurry mixture within and outside the vortex blades 10.1, thereby improving mixing uniformity.

[0059] In specific applications, the speed and direction of each second breaking roller 4.2 and each bottom vortex rotating shaft 10.2 are independently adjustable, which can achieve more refined crushing and mixing operations.

[0060] The curing agent slurry premixing box 6 is located outside the fluidized soil mixing box 2 and is used to mix the special curing agent in advance. The mixed curing agent slurry is pumped into the fluidized soil mixing box 2 as the initial slurry, so as to achieve the most accurate and uniform control of the fluidized soil production process.

[0061] The mobile support system 8 is used for the movement and transportation of the entire equipment. Rollers 8.3 are mounted beneath the mobile support system platform 8.1. To ensure a precise and effective control system, the chassis can be equipped with rigid support legs 8.2. During the fluidized soil production process, these rigid support legs 8.2 bear the entire weight. A weighing device is mounted on the mobile support system platform 8.1 for weighing the fluidized soil mixing box 2.

[0062] The control system can perform timely measurement calculations through real-time mass weighing, thereby achieving precise control of the raw soil and curing agent slurry ratio in the fluidized soil production process.

[0063] The specific implementation process of grouting in this embodiment is as follows:

[0064] (1) Before production, first measure or determine the properties of the original soil used for fluidized soil production, and complete the determination of its moisture content.

[0065] (2) The laboratory completes the preparation of special curing agents, trial preparation and testing of fluidized soil.

[0066] (3) After the fluidized soil is solidified, the various indicators meet the design expectations, the special curing agent formula is determined, and production is arranged. During the process, the construction parameters such as the curing agent dosage and water-cement ratio are determined.

[0067] (4) Adjust the mobile support system 8 to the appropriate position and stabilize the entire equipment.

[0068] (5) The curing agent slurry is mixed as required in the curing agent slurry premixing box 6.

[0069] (6) Inject the curing agent slurry into the fluidized soil mixing box 2 as needed, turn on the control system, and the middle soil breaking and stirring device 4 and the bottom vortex soil breaking and stirring device 10 start to operate.

[0070] (7) The loader / excavator etc. feeds the raw soil through the feeding bin 1. The raw soil is initially separated by the steel grid and is continuously broken into small pieces by the second breaking blade 4.1 of the middle breaking and stirring device 4.

[0071] (8) The crushed original soil that falls into the initial curing agent slurry is crushed, stirred and lifted by the bottom vortex soil breaking and stirring device 10, and works together with the middle soil breaking and stirring device 4 to mix the fluidized soil.

[0072] (9) With the continuous addition of raw soil, the middle soil breaking and stirring device 4 and the bottom vortex soil breaking and stirring device 10 form vertical and horizontal effects, and realize the crushing and stirring of the raw soil in the fluidized soil mixing box 2 in an all-round and three-dimensional manner, thereby ensuring the uniformity of the fluidized soil mixing.

[0073] (10) During the process, the control system 7 replenishes the curing agent slurry in a timely manner according to the actual amount of raw soil added, ensuring that the various indicators of the fluidized soil meet the design requirements.

[0074] (11) The fluidized soil is produced and pumped out through the discharge port 2.1 to be used as a construction material for external discharge, pouring, etc.

[0075] Example 2

[0076] like Figure 2 As shown, the difference between this embodiment and the first embodiment is that:

[0077] (1) The bottom vortex stirring device 10 is provided with different sizes (the height and width of the large bottom vortex stirrer are both larger than the small bottom vortex stirrer). For example, it can be provided in a large-small-large-small manner, or it can be appropriately adjusted according to the actual situation. The stirring difference formed by the vortex stirring devices of different sizes working together will enhance the stirring effect of the bottom process fluidized soil, and at the same time, it can further enhance the fluidity of the original soil-curing agent slurry mixture in the fluidized soil mixing box 2.

[0078] (2) In actual implementation, the rotation direction of the bottom vortex rotation axis 10.1 is adjustable, which further enhances the stirring effect of the bottom process fluidized soil.

[0079] (3) In actual implementation, the rotational speed of the bottom vortex rotating shaft 10.1 is adjustable to further enhance the mixing effect of the bottom fluidized soil. Furthermore, the rotational speed of some bottom vortex rotating shafts 10.1 can be set higher than that of other bottom vortex rotating shafts 10.1, thereby further enhancing the fluidity of the original soil-hardening agent slurry mixture in the fluidized soil mixing box 2.

[0080] Example 3

[0081] like Figure 3 As shown, the difference between this embodiment and the second embodiment is that:

[0082] The row of second breaking rollers 4.2 of the central breaking and stirring device 4 are staggered vertically in a continuous Z-shape within the fluidized soil mixing box 2, allowing the second breaking blades 4.1 to move vertically. This staggered arrangement effectively breaks up the upper raw soil and fully pulverizes the fluidized soil.

[0083] Example 4

[0084] like Figure 4-5 As shown, the difference between this embodiment and the first embodiment is that:

[0085] In this embodiment, the top pre-separation device 3 eliminates the steel grating consisting of several transverse steel bars 3.1 and longitudinal steel bars 3.2, and is replaced with a row of vertically rotating first breaking rollers 3.4, each of which is provided with first breaking blades 3.3 on its outer diameter. Preferably, the first breaking blades 3.3 on adjacent first breaking rollers 3.4 are closely spaced and interlocked, ensuring that the raw soil is continuously broken into small pieces in small doses, thus pre-treating the raw soil.

[0086] In this embodiment, the first breaking blade 3.3 mainly functions as a crusher, so a thin sheet blade or a serrated spike blade can be selected. The second breaking blade 4.1 has a stirring function in addition to crushing, so a thicker multi-layered fan blade or a wavy blade can be selected.

[0087] The speed and direction of each first breaking roller 3.4 are individually adjustable.

[0088] Example 5

[0089] like Figure 6-Figure 7 As shown, the difference between this embodiment and the fourth embodiment is that:

[0090] In this embodiment, the top pre-separation device 3 consists of two parts, namely, an upper steel grid and a row of first soil-breaking rollers 3.4 at the lower part. The top of the first soil-breaking blade 3.3 on the first soil-breaking roller 3.4 is higher than the top surface of the steel grid, ensuring that the raw soil is continuously cut and broken into small pieces in small doses, thereby realizing fine pretreatment of the raw soil.

[0091] The middle soil-breaking and stirring device 4 cooperates with the top pre-separation device 3 and the bottom vortex soil-breaking and stirring device 10 to further stir the formed process fluidized soil slurry.

[0092] In specific applications, the speed and direction of each first breaking roller 3.4, the second breaking roller 4.2 and each bottom vortex rotating shaft 10.2 are independently adjustable, which can achieve more refined crushing and mixing operations.

[0093] The specific implementation process of grouting in this embodiment is as follows:

[0094] (1) Before production, first measure or determine the properties of the original soil used for fluidized soil production, and complete the determination of its moisture content.

[0095] (2) The laboratory completes the preparation of special curing agents, trial preparation and testing of fluidized soil.

[0096] (3) After the fluidized soil is solidified, the various indicators meet the design expectations, the special curing agent formula is determined, and production is arranged. During the process, the construction parameters such as the curing agent dosage and water-cement ratio are determined.

[0097] (4) Adjust the mobile support system 8 to the appropriate position and stabilize the entire equipment.

[0098] (5) The curing agent slurry is mixed as required in the curing agent slurry premixing box 6.

[0099] (6) Inject the curing agent slurry into the fluidized soil mixing box 2 as needed, turn on the control system 7, and the first soil-breaking roller 3.4, the middle soil-breaking stirring device 4, and the bottom vortex soil-breaking stirring device 10 start to operate.

[0100] (7) The loader / excavator feeds the raw soil through the feeding bin 1, and the first soil-breaking blade 3.3 of the top pre-separation device 3 can be rotated to a position beyond the top surface of the steel grid, ensuring that the raw soil is continuously broken into small pieces as needed under the action of the top pre-separation device 3.

[0101] (8) The primary crushed soil passes through the middle soil breaking and stirring device 4, where it is further crushed and stirred.

[0102] (9) The crushed original soil that falls into the initial curing agent slurry is crushed, stirred and lifted by the bottom vortex soil breaking and stirring device 10, and works together with the middle soil breaking and stirring device 4 to mix the fluidized soil.

[0103] (10) As the original soil is continuously added, the middle soil breaking and stirring device 4 and the bottom vortex soil breaking and stirring device 10 form vertical and horizontal effects, and the original soil in the fluidized soil mixing box 2 is crushed and stirred in an all-round and three-dimensional manner to ensure the uniformity of the fluidized soil mixing.

[0104] (11) During the process, the control system 7 replenishes the curing agent slurry in a timely manner according to the actual amount of raw soil added, ensuring that the various indicators of the fluidized soil meet the design requirements.

[0105] (12) The fluidized soil is produced and pumped out through the discharge port 2.1 to be used as a construction material for external discharge, pouring, etc.

[0106] Example 6

[0107] like Figure 8 As shown, as the sixth embodiment of the present utility model, it is similar to the fifth embodiment, and the difference from the fifth embodiment is that: the middle soil-breaking and stirring device 4 is provided with an upper and lower layer of second soil-breaking rollers 4.2, which cooperate with the middle soil-breaking and stirring device 4 and the bottom vortex soil-breaking and stirring device 10, and four layers of soil-breaking and stirring equipment are distributed in the vertical space of the fluidized soil mixing box 2, which can be used for finer crushing of the original soil and at the same time improve the stirring effect.

[0108] During actual operation, the first breaking soil roller 3.4 and / or the second breaking soil roller 4.2 can rotate both clockwise and counterclockwise to perform breaking soil and mixing operations in multiple directions and throughout the entire cycle.

[0109] In order to achieve a reasonable and effective soil-breaking and mixing effect, the number of layers and the number of the first soil-breaking roller 3.4, the second soil-breaking roller 4.2 and the number of rotating shafts 10.2 of the bottom vortex soil-breaking and mixing device are not fixed, and can be rationally selected according to actual soil-breaking requirements (soil type, soil quantity, etc.).

[0110] Example 7

[0111] like Figure 9 As shown, the seventh embodiment of the present invention is similar to the sixth embodiment, but differs from the sixth embodiment in that:

[0112] (1) The bottom vortex stirring device 10 is provided with different sizes (the height and width of the large bottom vortex stirrer are both larger than the small bottom vortex stirrer). For example, it can be provided in a large-small-large-small manner, or it can be appropriately adjusted according to the actual situation. The stirring difference formed by the vortex stirring devices of different sizes working together will enhance the stirring effect of the bottom process fluidized soil, and at the same time, it can further enhance the fluidity of the original soil-curing agent slurry mixture in the fluidized soil mixing box 2.

[0113] (2) In actual implementation, the rotation direction of the bottom vortex rotation axis 10.1 is adjustable, which further enhances the stirring effect of the bottom process fluidized soil.

[0114] (3) In actual implementation, the rotational speed of the bottom vortex rotating shaft 10.1 is adjustable to further enhance the mixing effect of the bottom fluidized soil. Furthermore, the rotational speed of some bottom vortex rotating shafts 10.1 can be set higher than that of other bottom vortex rotating shafts 10.1, thereby further enhancing the fluidity of the original soil-hardening agent slurry mixture in the fluidized soil mixing box 2.

[0115] Example 8

[0116] like Figure 10 As shown, the eighth embodiment of the present invention is similar to the seventh embodiment, and differs from the third embodiment in that:

[0117] A row of first soil-breaking rollers 3.4 are staggered in a continuous Z-shape in the fluidized soil mixing box 2, so that the first soil-breaking blades 3.3 are staggered up and down and interlock with each other. The staggered arrangement can more effectively crush the original soil on the upper part, and cooperate with the middle soil-breaking mixing device 4 to fully crush the fluidized soil.

[0118] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A multi-layer crushing-mixing self-compacting fluidized self-setting soil production device, characterized in that: The self-compacting fluidized self-setting soil production device comprises a fluidized soil mixing box (2) and a curing agent slurry premixing box (6) connected to the fluidized soil mixing box (2), wherein the curing agent slurry premixing box (6) is used to transport the curing agent slurry to the fluidized soil mixing box (2); The fluidized soil mixing box (2) is provided with a feed port at the top, and a top pre-separation device (3), a middle soil breaking and stirring device (4), and a bottom vortex soil breaking and stirring device (10) are sequentially provided in the fluidized soil mixing box (2) from top to bottom; The middle soil-breaking and stirring device (4) includes a plurality of vertically rotating second soil-breaking rollers (4.2), the second soil-breaking rollers (4.2) rotate vertically and are provided with a plurality of second soil-breaking and stirring blades (4.1) along the circumference of the outer diameter; the bottom vortex soil-breaking and stirring device (10) includes a plurality of horizontally rotating bottom vortex agitators, each of the bottom vortex agitators is provided with a bottom vortex rotating shaft (10.2) and a vortex blade (10.1) mounted on the bottom vortex rotating shaft (10.2).

2. A multi-layer crushing-mixing self-compacting fluidized self-setting soil production device as claimed in claim 1, characterized in that: A feeding bin (1) is installed on the top of the feed port, and the feeding bin (1) is provided with an opening that is wide at the top and narrow at the bottom. A discharge port (2.1) is provided on one side of the bottom of the fluidized soil mixing box (2); Removable baffles (9) located on the top of the top pre-separation device (3) are provided on both sides of the interior of the feeding bin (1).

3. The multi-layer crushing-mixing self-compacting fluidized self-setting soil production device according to claim 1, characterized in that: The top pre-separation device (3) comprises: A grid-like steel screen, wherein the top pre-separation device (3) is composed of a plurality of inverted "V"-shaped screen bars staggered horizontally and vertically; and / or A row of first soil-breaking rollers (3.4), each of which is provided with a first soil-breaking blade (3.3) on its outer diameter, the first soil-breaking blades (3.3) of adjacent first soil-breaking rollers (3.4) being staggered and interlocked, the first soil-breaking blades (3.3) being thin sheet-like or sawtooth-like spike-like blades radially mounted on the outer diameter of the first soil-breaking roller (3.4); The rotation speed and direction of the first breaking roller (3.4) are both independently adjustable.

4. A multi-layer crushing-mixing self-compacting fluidized self-setting soil production device as claimed in claim 3, characterized in that: The top pre-separation device (3) comprises a grid-shaped steel screen and a row of first soil-breaking rollers located below the grid-shaped steel screen, and the first soil-breaking blades (3.3) can rotate to a position beyond the top surface of the grid-shaped steel screen.

5. The multi-layer crushing-mixing self-compacting fluidized self-setting soil production device according to claim 3, characterized in that: The first soil-breaking rollers (3.4) are distributed at the same height in the fluidized soil mixing box (2), or A row of the first soil-breaking rollers (3.4) of different heights are distributed in a continuous Z-shape in an up-and-down staggered manner in the fluidized soil mixing box (2).

6. The multi-layer crushing-mixing self-compacting fluidized self-setting soil production device according to claim 3, characterized in that: The central soil-breaking and stirring device (4) comprises at least one row of second soil-breaking rollers (4.2) distributed along the horizontal X direction, a gap is left between the second soil-breaking and stirring blades (4.1) of adjacent second soil-breaking rollers (4.2), the second soil-breaking and stirring blades (4.1) are at least one layer of fan-shaped blades or wavy blades installed on the second soil-breaking rollers (4.2), and the thickness of the second soil-breaking and stirring blades (4.1) is greater than the thickness of the first soil-breaking blades (3.3); The rotation speed and direction of each of the second breaking rollers (4.2) are individually adjustable.

7. The multi-layer crushing-mixing self-compacting fluidized self-setting soil production device according to claim 1, characterized in that: A circle of vortex blades (10.1) extending upward and forming a bowl shape is installed on the outer diameter of the bottom vortex rotating shaft (10.2), with gaps being left between adjacent vortex blades (10.1); The bottom of the fluidized soil mixing box (2) is provided with at least one row of bottom vortex agitators of alternating sizes distributed along the X direction, and the height and width of the large bottom vortex agitators are both greater than those of the small bottom vortex agitators; The rotation speed and direction of each bottom vortex rotating shaft (10.2) are individually adjustable.

8. The multi-layer crushing-mixing self-compacting fluidized self-setting soil production device according to claim 6, characterized in that: The manufacturing device further comprises a mobile support system (8), wherein the mobile support system (8) comprises a mobile support system platform (8.1), rigid support legs (8.2), and rollers (8.3). The fluidized soil mixing box (2) and the curing agent slurry premixing box (6) are both installed on the upper surface of the mobile support system platform (8.1); a weighing device is provided between the mobile support system platform (8.1) and the fluidized soil mixing box (2); a plurality of rigid support legs (8.2) are installed at the bottom of the mobile support system platform (8.1); and a roller (8.3) is installed at the bottom of each rigid support leg (8.2).

9. The multi-layer crushing-mixing self-compacting fluidized self-setting soil production device according to claim 8, characterized in that: The manufacturing device further comprises a control system (7), and the control system (7) is connected to the weighing device, the first soil-breaking roller (3.4) of the top pre-separation device (3), the middle soil-breaking stirring device (4), the bottom vortex soil-breaking stirring device (10), and the curing agent slurry premixing box (6).

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