Preparation system and method of steel slag concrete pavement slab with water permeability

Abstract

The invention discloses a water-permeable steel slag concrete pavement slab preparation system and method.The preparation system comprises an overturning type shaping mold, a lifting type guide rail and a downward-pressing type grouting mechanism which are sequentially arranged upwards in the vertical direction, and a walking type material distribution rolling mechanism is installed on the lifting type guide rail; an adjustable feeding mechanism is arranged at one end of the lifting type guide rail; according to the preparation method, the preparation system is used for preparing the steel slag concrete pavement slab with water permeability, materials formed by mixing different raw materials are added into the overturning type shaping mold layer by layer and rolled layer by layer, then the materials are pressed by the downward-pressing type grouting mechanism according to preset downward pressure, grouting operation is carried out, and the steel slag concrete pavement slab with water permeability is obtained. Therefore, the slurry is fully filled into each gap of the material. According to the invention, the uniformity of the internal structure of the pavement slab can be ensured, the strength and water permeability of the pavement slab are improved, and the yield of the obtained product is ensured. The method is suitable for the technical field of steel slag recycling and reusing.

Description

Technical Field

[0001] This invention belongs to the technical field of steel slag recycling and reuse, specifically, it relates to a system and method for preparing permeable steel slag concrete pavement panels. Background Technology

[0002] Currently, the recycling rate of steel slag produced in steelmaking is low, and most of it is discarded, resulting in waste. To avoid this waste, steel slag can be recycled and mixed with other raw materials to prepare concrete pavement slabs or permeable pavement slabs. Existing preparation methods involve mixing steel slag, sand, and gravel together, injecting slurry during the mixing process, or mixing steel slag, sand, gravel, cement, and foaming agents, gradually adding water to the mixing equipment, and then using a stirring device for thorough mixing. After thorough mixing, the mixture is poured into a mold for shaping. Once solidified, the resulting pavement slab is removed. However, pavement slabs prepared using these methods often have heterogeneous internal walls. Specifically, the steel slag, sand, and gravel have different weights. When the mixture is added to the mold, after a period of settling before the concrete solidifies, the different weights of the materials will shift under gravity, with heavier materials displacing more downwards. This results in a heterogeneous internal structure for the pavement slab, affecting its strength and permeability, and significantly increasing the failure rate. Summary of the Invention

[0003] This invention provides a system and method for preparing permeable steel slag concrete pavement panels to ensure the homogeneity of the internal structure of the pavement panels, improve their strength and permeability, and guarantee the yield of the resulting products.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] This invention discloses a permeable steel slag concrete pavement preparation system, comprising a flip-type shaping mold, a lifting guide rail, and a downward grouting mechanism arranged sequentially upwards in a vertical direction. A traveling material placing roller mechanism is installed on the lifting guide rail, and an adjustable feeding mechanism is provided at one end of the lifting guide rail.

[0006] Furthermore, the flip-type shaping mold includes multiple mold parts connected in sequence, which constitute a mold body. The mold body has two casting and shaping grooves arranged vertically opposite each other. The two ends of the mold body along its length are respectively rotatably connected to fixed seats via adapter shafts. Each fixed seat is fixed to the ground. A driven gear is coaxially mounted on one of the adapter shafts. A drive motor is mounted on the fixed seat. A drive gear is coaxially mounted on the output shaft of the drive motor. The drive gear and the driven gear mesh with each other.

[0007] Furthermore, a first connecting ear and a second connecting ear are respectively constructed at both ends of the mold body. The corresponding first connecting ear and second connecting ear in two adjacent mold bodies can be detachably connected. A partition plate is constructed in the middle of the mold body, and the corresponding parts of the two casting and shaping grooves are formed above and below the partition plate.

[0008] Furthermore, multiple transverse guide grooves are constructed at the upper and lower ends of the partition plate, and guide holes are respectively opened on both sides of the mold body at the positions of these transverse guide grooves.

[0009] Furthermore, the lifting guide rail includes two guide rail bodies arranged side by side, and a first vertical hydraulic cylinder is installed at both ends of each guide rail body. The two sides of the traveling fabric roller pressing mechanism are respectively assembled with the two guide rail bodies.

[0010] Furthermore, the traveling fabric roller pressing mechanism includes a fabric box with both upper and lower ends in an open state. The lower end of the fabric box extends downward at an angle away from the adjustable feeding mechanism. Multiple pneumatic fabric rollers are rotatably connected at intervals along the extension direction of the lower end of the fabric box. One end of these pneumatic fabric rollers is driven by a transmission component, and the other end of these pneumatic fabric rollers is connected to a pneumatic pipe system. A fabric channel is formed between two adjacent pneumatic fabric rollers. Linear motors are installed on both sides of the fabric box, and each linear motor travels on a corresponding guide rail.

[0011] Furthermore, the adjustable feeding mechanism includes an auger conveyor pivotally connected to the mounting base via a pivot shaft, and a sliding seat is constructed at the lower end of the mounting base, the sliding seat being slidably connected to the longitudinal guide rail.

[0012] Furthermore, the downward-pressurized grouting mechanism includes a plurality of elastic compression grouting units connected in sequence, and the grouting pipe system and the discharge pipe system are respectively connected to each of the elastic compression grouting units. A second vertical hydraulic cylinder is installed on the elastic compression grouting units located at both ends of these elastic compression grouting units.

[0013] Furthermore, the elastic compression grouting unit includes a grouting connection seat with an assembly groove at its lower end, a grouting joint and a discharge joint at the upper end of the grouting connection seat, the grouting joint and the discharge joint being connected to the grouting pipe system and the discharge pipe system respectively, a grouting insert seat at the upper end of the compression seat, the grouting insert seat being movably inserted into the assembly groove, and the compression seat being connected to the grouting connection seat via a vertical elastic connector, a grouting cavity being formed in the assembly groove between the grouting insert seat and the grouting connection seat, and a plurality of grouting channels being opened on the compression seat, each penetrating the grouting insert seat and communicating with the grouting cavity.

[0014] This invention also discloses a method for preparing permeable steel slag concrete pavement panels, using the system described above, the method comprising the following steps:

[0015] Step 1. Control the traveling fabric roller pressing mechanism to travel to the adjustable feeding mechanism. The adjustable feeding mechanism will transport the material containing steel slag into the traveling fabric roller pressing mechanism.

[0016] Step 2. Control the traveling fabric roller pressing mechanism to move along the lifting guide rail, and at the same time control the traveling fabric roller pressing mechanism to add material to the flipping shaping mold;

[0017] Step 3. When the traveling fabric roller pressing mechanism moves to the other end of the lifting guide rail, control the flipping shaping mold to swing back and forth along its width direction, and the swing angle is -5° to 5°. After swinging back and forth for 10-15 minutes, control the flipping shaping mold to straighten.

[0018] Step 4. Control the lifting guide rail to descend, so that it drives the traveling fabric roller pressing mechanism to descend until it contacts the material in the flipping shaping mold;

[0019] Step 5. Control the traveling fabric roller pressing mechanism to move toward the adjustable feeding mechanism, and the adjustable feeding mechanism presses the material;

[0020] Step 6. When the traveling fabric roller pressing mechanism moves to the position of the adjustable feeding mechanism, control the lifting guide rail to rise, so that it drives the traveling fabric roller pressing mechanism to rise.

[0021] Step 7. Repeat steps 1-6 until the material in the flip-type shaping mold is filled to the predetermined height;

[0022] Step 8. Control the downward grouting mechanism to press the material in the tilting mold downward. When the pressure reaches the predetermined pressure range, the grout mixed with foaming agent is injected into the material in the tilting mold through the downward grouting mechanism by the grouting pump.

[0023] Step 9. After the material inside the tilting mold has solidified, control the downward injection mechanism to rise and separate from the tilting mold. Then, control the tilting mold to rotate 180° to discharge the material.

[0024] The present invention, by employing the aforementioned structure, achieves a technological advancement compared to existing technologies in the following ways: During the unidirectional movement of the traveling fabric roller pressing mechanism along the lifting guide rail, material is added into the tilting shaping mold. Subsequently, by controlling the reciprocating oscillation of the tilting shaping mold, the material within is shaken evenly. During the return process of the traveling fabric roller pressing mechanism, the height of the lifting guide rail is adjusted so that the lower end of the traveling fabric roller pressing mechanism rolls onto the upper surface of the material within the tilting shaping mold, thereby compressing and flattening the material and reducing the gaps between materials. This repeated control of the traveling fabric roller pressing mechanism to supply and compress material within the tilting shaping mold ensures that material is added and rolled layer by layer, guaranteeing that the gaps between materials remain within a predetermined range. This invention controls a pressure-type grouting mechanism to press the material onto the upper surface of a tilting mold at a predetermined pressure. This prevents the various raw materials that make up the material from changing position. Then, grout containing a foaming agent is injected into the tilting mold through the pressure-type grouting mechanism, allowing the grout to gradually fill the gaps between the materials. After solidification, a homogeneous concrete pavement slab with permeability is obtained. When the slurry ratio in the pavement panel produced by this invention is large, various raw materials and slurry can be mixed and then injected into a tilting mold. The downward-pressing grouting mechanism then seals the mixture within the mold. Alternatively, materials other than the slurry can be mixed and added to the tilting mold via a traveling fabric roller mechanism. The downward-pressing grouting mechanism then seals the mold, and the slurry is pumped into it using a grouting pump. In both methods, the material density is lower, and materials of different weights will shift. This allows the tilting mold to continue rotating until the slurry viscosity gradually increases and solidifies, ensuring that different raw materials do not change position under gravity and maintaining the homogeneity of the pavement panel's internal structure. In summary, this invention ensures the homogeneity of the pavement panel's internal structure, improves its strength and permeability, and guarantees the yield of the resulting product. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0028] Figure 2 This is a side view of the structure according to an embodiment of the present invention;

[0029] Figure 3This is a schematic diagram of the structure of the flip-type shaping mold according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the mold split structure in the flip-type shaping mold according to an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the connection between the lifting guide rail and the traveling fabric roller pressing mechanism in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the traveling fabric roller pressing mechanism according to an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the traveling fabric roller pressing mechanism from another angle according to an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the adjustable feeding mechanism according to an embodiment of the present invention;

[0035] Figure 9 This is a schematic diagram of the downward-pressure grouting mechanism according to an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the elastic compression grouting unit in the downward-pressure grouting mechanism of this invention.

[0037] Figure 11 for Figure 10 A schematic diagram of the structure shown from another angle;

[0038] Figure 12 for Figure 10 A partial sectional view of the structure shown;

[0039] Figure 13 This is an exploded view of the elastic compression grouting unit in the downward-pressure grouting mechanism of this invention.

[0040] Figure 14 for Figure 13 A schematic diagram of the structure from another angle.

[0041] Components labeled: 100-Flip-type shaping mold, 101-Mold body, 102-Separator plate, 103-First connecting ear, 104-Second connecting ear, 105-Horizontal guide channel, 106-Guide hole, 107-Fixed base, 108-Adapter shaft, 109-Driven gear, 110-Drive motor, 111-Drive gear, 200-Lifting guide rail, 201-Guide rail body, 202-First vertical hydraulic... Hydraulic cylinder; 300-Traveling fabric roller pressing mechanism; 301-Fabric box; 302-Fabric chamber; 303-Pneumatic fabric roller; 304-First shaft; 305-Drive sprocket; 306-Second shaft; 307-Transition sprocket; 308-Power motor; 309-Drive sprocket; 310-Drive chain; 311-Linear motor; 312-Main air pipe; 313-Branch air pipe; 314-Air control valve. 315-Fabrication channel, 400-Adjustable feeding mechanism, 401-Screw conveyor, 402-Assembly seat, 403-Pivot shaft, 404-Sliding seat, 405-Longitudinal guide rail, 500-Down-pressure grouting mechanism, 501-Grouting connection seat, 502-Pressure seat, 503-Grouting insert seat, 504-Grouting chamber, 505-Grouting joint, 506-Discharge joint, 507-Upper assembly port, 508-Fixed 509 - Upper fixing plate; 510 - Vertical guide sleeve; 511 - Grouting channel; 512 - Lower assembly port; 513 - Lower fixing plate; 514 - Rigid connecting spring; 515 - Grouting main pipe; 516 - Grouting branch pipe; 517 - Grouting sub-valve; 518 - Grouting main valve; 519 - Discharge main pipe; 520 - Discharge branch pipe; 521 - Discharge sub-valve; 522 - Discharge main valve; 523 - Second vertical hydraulic cylinder. Detailed Implementation

[0042] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0043] This invention discloses a permeable steel slag concrete pavement preparation system, such as... Figure 1-14As shown, the invention includes a tilting shaping mold 100, a lifting guide rail 200, a downward pressing grouting mechanism 500, a traveling fabric rolling mechanism 300, and an adjustable feeding mechanism 400. The tilting shaping mold 100, the lifting guide rail 200, and the downward pressing grouting mechanism 500 are arranged vertically upwards in sequence. The traveling fabric rolling mechanism 300 is mounted on the lifting guide rail 200, and the adjustable feeding mechanism 400 is located at one end of the lifting guide rail 200. The working principle and advantages of this invention are as follows: During the unidirectional movement of the traveling fabric rolling mechanism 300 along the lifting guide rail 200, material is added into the tilting shaping mold 100. Then, by controlling the reciprocating swing of the tilting shaping mold 100, the material inside the tilting shaping mold 100 is shaken evenly. In this invention, during the return process of the traveling fabric rolling mechanism 300, the height of the lifting guide rail 200 is adjusted so that the lower end of the traveling fabric rolling mechanism 300 rolls against the upper surface of the material inside the tilting shaping mold 100, thereby pressing the material flat and reducing the gaps between the materials. This process of repeatedly controlling the traveling fabric rolling mechanism 300 to supply and press the material inside the tilting shaping mold 100 ensures that the material is added and rolled layer by layer, guaranteeing that the gaps between the materials are within a predetermined range. In this invention, the downward-pressing grouting mechanism 500 presses the upper surface of the material inside the tilting shaping mold 100 at a predetermined pressure, preventing any change in the position of the various raw materials. Then, grout containing a foaming agent is injected into the tilting shaping mold 100 through the downward-pressing grouting mechanism 500, gradually filling the gaps between the materials. After solidification, a homogeneous, permeable concrete pavement slab is obtained. When the slurry ratio in the pavement panel produced by this invention is large, various raw materials and slurry can be mixed and then injected into the tilting mold 100, so that the downward-pressing grouting mechanism 500 seals the mixture within the tilting mold 100; or, materials other than slurry can be mixed and added into the tilting mold 100 via a traveling fabric roller pressing mechanism 300, the downward-pressing grouting mechanism 500 can be used to seal the tilting mold 100, and then the slurry can be pumped into the tilting mold 100 via a grouting pump. In both of these methods, the material density is lower, and materials of different weights will undergo certain displacement, thereby controlling the tilting mold 100 to continuously tilt until the viscosity of the slurry gradually increases and solidifies, thus ensuring that different raw materials do not change position under gravity, ensuring the homogeneity of the pavement panel's internal structure. In summary, this invention can ensure the homogeneity of the internal structure of the pavement panel, improve its strength and permeability, and guarantee the yield of the obtained product.

[0044] As a preferred embodiment of the present invention, such as Figure 3 , 4As shown, the flip-type shaping mold 100 includes a drive motor 110, a drive gear 111, a driven gear 109, two fixed seats 107, and multiple mold components 101. The multiple mold components 101 are connected sequentially to form a complete mold assembly. This mold assembly has two casting and shaping grooves arranged vertically opposite each other. Adapter shafts 108 are fixedly installed at both ends along the length of the mold assembly, with their axes coinciding. The two fixed seats 107 are rotatably connected to the two adapter shafts 108, and each fixed seat 107 is fixedly installed on the ground. In this embodiment, the driven gear 109 is coaxially mounted on one of the adapter shafts 108, the drive motor 110 is mounted on the corresponding fixed seat 107, and the drive gear 111 is coaxially mounted on the output shaft of the drive motor 110. The drive gear 111 and the driven gear 109 mesh with each other. In this embodiment, the drive motor 110 is controlled to drive the driven gear 109 to rotate via the drive gear 111. This, in turn, causes the driven gear 109 to rotate or reciprocate through the adapter shaft 108, thus enabling the mold as a whole to flip or swing back and forth. One of the casting and shaping tanks in this embodiment is used to hold materials and slurry. After flipping, the other casting and shaping tank faces upwards and is used to hold materials and slurry. The road panel is then removed from the casting and shaping tank below. Furthermore, the drive motor 110 drives the mold as a whole to swing back and forth, achieving the purpose of quickly detaching the road panel from the casting and shaping tank. In this embodiment, the number of mold sections 101 can be increased or decreased according to the length of the road panel, thus adjusting the overall length of the mold.

[0045] As a preferred embodiment of the present invention, such as Figure 4 As shown, a first connecting ear 103 and a second connecting ear 104 are respectively constructed at both ends of the mold body 101. The corresponding first connecting ear 103 and second connecting ear 104 in two adjacent mold bodies 101 are detachably connected together. In this embodiment, a partition plate 102 is constructed in the middle of the mold body 101, and the corresponding parts of the two casting and shaping grooves are formed above and below the partition plate 102. In order to ensure the sufficiency of grouting and to accurately determine whether the grouting is full, the measures taken in this embodiment are as follows: multiple transverse guide grooves 105 are constructed at the upper and lower ends of the partition plate 102, and multiple guide holes 106 are opened on both sides of the mold body 101. These guide holes 106 are connected to the ends of the corresponding transverse guide grooves 105. In this embodiment, during the grouting process, the grout gradually permeates into each area of ​​the transverse guide channel 105, and excess grout is discharged through the guide holes 106. When all the guide holes 106 stably seep out grout, it proves that all gaps between the raw materials in the transverse guide channel 105 are filled with grout, thus achieving the purpose of full pouring.

[0046] As a preferred embodiment of the present invention, such as Figure 5 As shown, the lifting guide rail 200 includes two guide rail bodies 201 arranged side by side. A first vertical hydraulic cylinder 202 is installed at each end of each guide rail body 201. The traveling material placing roller pressing mechanism 300 is assembled to the two guide rail bodies 201 on both sides and can travel along the length of the guide rail bodies 201. In this embodiment, by controlling all the first vertical hydraulic cylinders 202 to lift and lower synchronously, the two guide rail bodies 201 drive the traveling material placing roller pressing mechanism 300 to lift and lower during the synchronous lifting and lowering process, thereby adjusting the height of the traveling material placing roller pressing mechanism 300 to facilitate the addition of material to the casting and shaping tank and the rolling operation of the material.

[0047] As a preferred embodiment of the present invention, such as Figure 6 , 7As shown, the traveling fabric roller pressing mechanism 300 includes a fabric box 301, a transmission assembly, a pneumatic piping system, two linear motors 311, and multiple pneumatic fabric rollers 303. The fabric box 301 has a fabric cavity 302, with both its upper and lower ends open, meaning the fabric cavity 302 extends through both ends of the fabric box 301. The lower end of the fabric box 301 extends downwards at an angle away from the adjustable feeding mechanism 400, and a fabric channel 315 is formed between adjacent pneumatic fabric rollers 303. In this embodiment, the multiple pneumatic fabric rollers 303 are spaced apart at the lower end of the fabric box 301 along its extension direction. The first shafts 304 at both ends of each pneumatic fabric roller 303 are rotatably connected to the two side walls of the fabric box 301, and one end of each pneumatic fabric roller 303 is connected via the transmission assembly. The transmission assembly in this embodiment includes a power motor 308 mounted on the outer end face of one end of the material distribution box 301. A drive sprocket 309 is coaxially mounted on the output shaft of the power motor 308. Drive sprockets 305 are coaxially mounted on each of the first shafts 304 located on one side of the material distribution box 301. A second shaft 306 is rotatably connected to the side wall of the material distribution box 301. A transition sprocket 307 is coaxially mounted on the second shaft 306. The drive sprocket 309, transition sprocket 307, and each drive sprocket 305 are connected by a transmission chain 310. Thus, during the operation of the power motor 308, it drives each pneumatically inflatable material distribution roller 303 to rotate, thereby adding material to the casting and shaping tank and performing a rolling operation on the material. Furthermore, because these pneumatic fabric rollers 303 are arranged at an angle, extending downwards in the direction opposite to the adjustable feeding mechanism 400, when adding material, the material first enters the casting and shaping tank through the fabric channel 315 at the lower position, and then enters the casting and shaping tank through the fabric channels 315 at the next higher and then the highest positions. This allows the traveling fabric roller pressing mechanism 300 to sequentially distribute multiple layers of material into the casting and shaping tank during its single-stroke movement along the lifting guide rail 200, achieving a uniform material application effect. During the return stroke of the traveling fabric roller pressing mechanism 300, the lifting guide rail 200 is controlled to lower the traveling fabric roller pressing mechanism 300. This allows the pneumatic fabric rollers 303 to sequentially press the material in the casting and shaping tank from high to low, ensuring the stability and sufficiency of the pressing process and maintaining the density and uniformity of the material in the casting and shaping tank within a predetermined range. In this embodiment, an air guide channel is provided in the first shaft 304 located on the other side of the fabric box 301, which is connected to the air-inflatable fabric roller 303. The air-inflatable fabric roller 303 is a roller-shaped structure made of rubber material with an air chamber, and each air guide channel is connected to the pneumatic pipe system.The pneumatic piping system of this embodiment includes a main air guide pipe 312, on which multiple branch air guide pipes 313 are spaced apart. Each branch air guide pipe 313 is rotatably connected to a corresponding first shaft 304 and connected to a corresponding air guide channel. An air guide control valve 314 is installed on the main air guide pipe 312. Two linear motors 311 are respectively installed on both sides of the fabric box 301, and each linear motor 311 travels on a corresponding guide rail 201. In this embodiment, by controlling the pressure of the gas entering the main air guide pipe 312, the high-pressure gas adjusts the expansion degree of the air-filled fabric roller 303, thereby adjusting the diameter of the fabric channel 315 and thus adjusting the amount of material exiting the fabric channel 315. Furthermore, by adjusting the degree of expansion of the pneumatic fabric roller 303, the hardness of the pneumatic fabric roller 303 can be adjusted, thereby adjusting the elastic pressure of the pneumatic fabric roller 303 on the material surface. That is, when the pneumatic fabric roller 303 rolls the material, the degree of elastic deformation of the pneumatic fabric roller 303 is different, and the rolling effect will be adjusted accordingly.

[0048] As a preferred embodiment of the present invention, such as Figure 8 As shown, the adjustable feeding mechanism 400 includes an auger conveyor 401, which is pivotally connected to a mounting base 402 via a pivot shaft 403. A sliding seat 404 is constructed at the lower end of the mounting base 402, and the sliding seat 404 is slidably connected to a longitudinal guide rail 405. In this embodiment, the tilt angle of the auger conveyor 401 can be adjusted along the axis of the pivot shaft 403, and the position of the sliding seat 404 on the longitudinal guide rail 405 can be adjusted to achieve the purpose of aligning the auger conveyor 401 with the upper end of the fabric box 301 of the traveling fabric roller pressing mechanism 300. After adjustment, the auger conveyor 401 is connected and fixed to a nearby fixed frame using a wire rope, and a locking screw is threaded onto the sliding seat 404. The locking screw is tightened so that the end of the locking screw is secured to the longitudinal guide rail 405.

[0049] As a preferred embodiment of the present invention, such as Figure 9As shown, the downward-pressurized grouting mechanism 500 includes a grouting pipe system, a discharge pipe system, two second vertical hydraulic cylinders 523, and multiple elastic compression grouting units. The multiple elastic compression grouting units are connected sequentially to form a complete grouting compression body. The grouting pipe system and the discharge pipe system are respectively connected to each elastic compression grouting unit. In this embodiment, the two second vertical hydraulic cylinders 523 are installed at the upper end of the grouting compression body and are respectively connected to the elastic compression grouting units at both ends of the grouting compression body. In this embodiment, by controlling the synchronous descent of two second vertical hydraulic cylinders 523, the grouting pressure body is inserted into the casting and shaping tank. The grouting pressure body is then elastically pressed onto the material by multiple elastic pressure grouting units. Afterward, the grout is injected into the casting and shaping tank through the grouting pipe system and each elastic pressure grouting unit. When the casting and shaping tank is full of grout, the excess grout is discharged through the discharge pipe system. Then, the grout supply is stopped, and each guide hole 106 is sealed. Compressed air is then introduced into the grouting pipe system. Since the casting and shaping tank is full, the compressed air is discharged through the discharge pipe system, causing the grout in the grouting pipe system and the discharge pipe system to be driven away by the compressed air, thus preventing the grout from solidifying in the grouting pipe system and the discharge pipe system.

[0050] As a preferred embodiment of the present invention, such as Figure 9-14As shown, the elastic compression grouting unit includes a grouting connection seat 501 and a compression seat 502. An assembly groove is constructed at the lower end of the grouting connection seat 501, and two upper assembly ports 507 are symmetrically opened at the upper end of the grouting connection seat 501. Both upper assembly ports 507 communicate with the assembly groove. A grouting connector 505 and a discharge connector 506 are constructed at the upper end of the grouting connection seat 501, and the grouting connector 505 and the discharge connector 506 are respectively connected to the grouting pipe system and the discharge pipe system. Fixing ears 508 are constructed at both ends of the upper end of the grouting connection seat 501, and two adjacent fixing ears 508 in adjacent grouting connection seats 501 can be detachably connected together. The grouting pipe system of this embodiment includes a grouting main pipe 515 made of rubber, with multiple grouting branch pipes 516 spaced apart on the main pipe 515. Each grouting branch pipe 516 is connected to a corresponding grouting connector 505. A grouting main valve 518 is installed on the main pipe 515, and a grouting branch valve 517 is installed on each grouting branch pipe 516. The discharge pipe system of this embodiment includes a discharge main pipe 519 made of rubber, with multiple discharge branch pipes 520 spaced apart on the main pipe 519. Each discharge branch pipe 520 is connected to a corresponding discharge connector 506. A discharge main valve 522 is installed on the main pipe 519, and a discharge branch valve 521 is installed on each discharge branch pipe 520. In this embodiment, a grouting insert seat 503 is constructed at the upper end of the pressure seat 502. The grouting insert seat 503 is movably inserted into the assembly groove, and the pressure seat 502 is connected to the grouting connection seat 501 through a vertical elastic connector. In this embodiment, two lower mounting ports 512 are provided on the pressure seat 502. These two lower mounting ports 512 are corresponding one-to-one with the two upper mounting ports 507 mentioned above. Each lower mounting port 512 penetrates the grouting insert seat 503 in the vertical direction. The vertical elastic connector in this embodiment includes an upper fixing plate 509, a lower fixing plate 513, and a rigid connecting spring 514. A vertical guide sleeve 510 is constructed at the lower end of the upper fixing plate 509. The upper fixing plate 509 is fixed at the corresponding upper mounting port 507 and closes the upper mounting port 507. The lower fixing plate 513 is fixed at the corresponding lower mounting port 512 and closes the lower end of the lower mounting port 512. The vertical guide sleeve 510 extends movably into the lower mounting port 512 from the upper end of the lower mounting port 512. The two ends of the rigid connecting spring 514 are connected to the lower end of the upper fixing plate 509 and the upper end of the lower fixing plate 513, respectively. A grouting cavity 504 is formed in the assembly slot and between the grouting insert seat 503 and the grouting connection seat 501. Multiple grouting channels 511 are provided on the pressure seat 502. These grouting channels 511 pass through the grouting insert seat 503 and are connected to the grouting cavity 504.In this embodiment, two second vertical hydraulic cylinders 523 drive the pressing seat 502 to press against the upper surface of the material in the casting and shaping tank. As the downward pressure increases, the grouting insert seat 503 gradually moves upward, and the rigid connecting spring 514 gradually compresses and stores energy, so as to achieve the purpose of elastic pressing of the pressing seat 502 on the material, avoiding damage caused by hard contact. Then, the grout enters the grouting chamber 504 through the grouting joint 505, and is then injected into the casting and shaping tank through each grouting channel 511 to achieve the purpose of grouting.

[0051] This invention also discloses a method for preparing permeable steel slag concrete pavement panels, using the system described above, and the method includes the following steps:

[0052] Step 1. Control the traveling fabric roller pressing mechanism 300 to travel to the adjustable feeding mechanism 400. The adjustable feeding mechanism 400 will transport the material containing steel slag into the traveling fabric roller pressing mechanism 300.

[0053] Step 2. Control the traveling fabric roller pressing mechanism 300 to move along the lifting guide rail 200, and at the same time control the traveling fabric roller pressing mechanism 300 to add material to the flipping shaping mold 100;

[0054] Step 3. When the traveling fabric roller pressing mechanism 300 moves to the other end of the lifting guide rail 200, control the flipping shaping mold 100 to swing back and forth along its width direction, and the swing angle is -5° to 5°. After swinging back and forth for 10-15 minutes, control the flipping shaping mold 100 to be straightened.

[0055] Step 4. Control the lifting guide rail 200 to descend, so that it drives the traveling fabric roller pressing mechanism 300 to descend until it contacts the material in the flipping shaping mold 100;

[0056] Step 5. Control the traveling fabric roller pressing mechanism 300 to move toward the adjustable feeding mechanism 400, and the adjustable feeding mechanism 400 presses the material;

[0057] Step 6. When the traveling fabric roller pressing mechanism 300 moves to the position of the adjustable feeding mechanism 400, control the lifting guide rail 200 to rise, so that it drives the traveling fabric roller pressing mechanism 300 to rise.

[0058] Step 7. Repeat steps 1-6 until the material in the flip-type shaping mold 100 is filled to the predetermined height;

[0059] Step 8. Control the downward grouting mechanism 500 to press the material in the tilting mold 100 downward. When the pressure reaches the predetermined pressure range, the grout mixed with foaming agent is injected into the material in the tilting mold 100 through the downward grouting mechanism 500 by the grouting pump.

[0060] Step 9. After the material inside the tilting mold 100 solidifies, control the downward grouting mechanism 500 to rise and separate from the tilting mold 100. Then, control the tilting mold 100 to rotate 180° to perform material discharge.

[0061] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A permeable steel slag concrete pavement preparation system, characterized in that: It includes a flip-type shaping mold, a lifting guide rail and a downward grouting mechanism arranged in sequence along the vertical direction, a traveling cloth roller pressing mechanism installed on the lifting guide rail, and an adjustable feeding mechanism provided at one end of the lifting guide rail.

2. The permeable steel slag concrete pavement preparation system according to claim 1, characterized in that: The flip-type shaping mold includes multiple mold parts connected in sequence, which constitute the mold body. The mold body has two casting and shaping grooves arranged vertically opposite each other. The two ends of the mold body along its length are respectively rotatably connected to fixed seats through adapter shafts. Each fixed seat is fixed to the ground. A driven gear is coaxially mounted on one of the adapter shafts. A drive motor is installed on the fixed seat. A driving gear is coaxially mounted on the output shaft of the drive motor. The driving gear and the driven gear mesh with each other.

3. The permeable steel slag concrete pavement preparation system according to claim 2, characterized in that: A first connecting ear and a second connecting ear are respectively constructed at both ends of the mold body. The corresponding first connecting ear and second connecting ear in two adjacent mold bodies can be detachably connected. A partition plate is constructed in the middle of the mold body. The corresponding parts of the two casting and shaping grooves are formed above and below the partition plate.

4. The permeable steel slag concrete pavement preparation system according to claim 3, characterized in that: Multiple transverse guide grooves are constructed at the upper and lower ends of the partition plate, and guide holes are respectively opened on both sides of the mold body at the positions of these transverse guide grooves.

5. The permeable steel slag concrete pavement preparation system according to claim 1, characterized in that: The lifting guide rail includes two guide rail bodies arranged side by side, and a first vertical hydraulic cylinder is installed at both ends of each guide rail body. The two sides of the traveling fabric roller pressing mechanism are respectively assembled with the two guide rail bodies.

6. The permeable steel slag concrete pavement preparation system according to claim 5, characterized in that: The traveling fabric roller pressing mechanism includes a fabric box with both upper and lower ends in an open state. The lower end of the fabric box extends downward at an angle away from the adjustable feeding mechanism. Multiple pneumatic fabric rollers are rotatably connected at intervals along the extension direction of the lower end of the fabric box. One end of these pneumatic fabric rollers is driven by a transmission component, and the other end of these pneumatic fabric rollers is connected to a pneumatic pipe system. A fabric channel is formed between two adjacent pneumatic fabric rollers. Linear motors are installed on both sides of the fabric box, and each linear motor travels on a corresponding guide rail.

7. The permeable steel slag concrete pavement preparation system according to claim 1, characterized in that: The adjustable feeding mechanism includes an auger conveyor pivotally connected to the assembly base via a pivot shaft, and a sliding seat is constructed at the lower end of the assembly base, the sliding seat being slidably connected to the longitudinal guide rail.

8. The permeable steel slag concrete pavement preparation system according to claim 1, characterized in that: The downward-pressurized grouting mechanism includes multiple elastic compression grouting units connected in sequence. The grouting pipe system and the discharge pipe system are respectively connected to each of the elastic compression grouting units. A second vertical hydraulic cylinder is installed on each of the elastic compression grouting units located at both ends of these elastic compression grouting units.

9. A permeable steel slag concrete pavement preparation system according to claim 8, characterized in that: The elastic compression grouting unit includes a grouting connection seat with an assembly groove at the lower end, a grouting joint and a discharge joint at the upper end of the grouting connection seat, the grouting joint and the discharge joint being connected to the grouting pipe system and the discharge pipe system respectively, a grouting insert seat at the upper end of the compression seat, the grouting insert seat being movably inserted into the assembly groove, and the compression seat being connected to the grouting connection seat via a vertical elastic connector, a grouting cavity being formed in the assembly groove between the grouting insert seat and the grouting connection seat, and a plurality of grouting channels being opened on the compression seat, each penetrating the grouting insert seat and communicating with the grouting cavity.

10. A method for preparing a permeable steel slag concrete pavement panel, using the system described in any one of claims 1-9, characterized in that, The method includes the following steps: Step 1. Control the traveling fabric roller pressing mechanism to travel to the adjustable feeding mechanism. The adjustable feeding mechanism will transport the material containing steel slag into the traveling fabric roller pressing mechanism. Step 2. Control the traveling fabric roller pressing mechanism to move along the lifting guide rail, and at the same time control the traveling fabric roller pressing mechanism to add material to the flipping shaping mold; Step 3. When the traveling fabric roller pressing mechanism moves to the other end of the lifting guide rail, control the flipping shaping mold to swing back and forth along its width direction, and the swing angle is -5° to 5°. After swinging back and forth for 10-15 minutes, control the flipping shaping mold to straighten. Step 4. Control the lifting guide rail to descend, so that it drives the traveling fabric roller pressing mechanism to descend until it contacts the material in the flipping shaping mold; Step 5. Control the traveling fabric roller pressing mechanism to move toward the adjustable feeding mechanism, and the adjustable feeding mechanism presses the material; Step 6. When the traveling fabric roller pressing mechanism moves to the position of the adjustable feeding mechanism, control the lifting guide rail to rise, so that it drives the traveling fabric roller pressing mechanism to rise. Step 7. Repeat steps 1-6 until the material in the flip-type shaping mold is filled to the predetermined height; Step 8. Control the downward grouting mechanism to press the material in the tilting mold downward. When the pressure reaches the predetermined pressure range, the grout mixed with foaming agent is injected into the material in the tilting mold through the downward grouting mechanism by the grouting pump. Step 9. After the material inside the tilting mold has solidified, control the downward injection mechanism to rise and separate from the tilting mold. Then, control the tilting mold to rotate 180° to discharge the material.

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