Modified polyphenyl granule assembly type floor support plate and modular production method thereof

Abstract

The invention is suitable for the technical field of fabricated buildings, and provides a modified polyphenyl granule fabricated floor support plate and a modular production method thereof, and the method comprises the following steps: feeding a polystyrene granule raw material and a boiler biomass combustion material; foaming the polystyrene particle raw material into foam particles; a modifier is in full contact with foam particles through a double-shaft double-spiral-blade self-control modification system, and uniform modification is completed; the modified foam particles are added into a full-automatic stirring system to be prepared into modified polyphenyl particle concrete, and the modified polyphenyl particle concrete is conveyed to a pouring position designated by a robot through a self-priming pump and a rubber hose; meanwhile, truss steel bars on the formwork are welded; and template pouring and surface treatment are conducted, and finally a finished product of the modified polyphenyl granule assembly type floor support plate is obtained. According to the invention, uniform modification of polystyrene particles is realized, the strength of the floor support plate is enhanced, the cost is reduced, the production and construction efficiency is improved, and meanwhile, the floor support plate has remarkable heat preservation, sound insulation and noise reduction functions.

Description

Technical Field

[0001] The present invention belongs to the technical field of prefabricated buildings, and particularly relates to a modified polystyrene particle prefabricated floor slab and a modular production method thereof. Background Art

[0002] Prefabricated buildings, with their compliance with the concepts of energy conservation, emission reduction, environmental protection and low carbon, are leading the development direction of green buildings. Prefabricated floor slabs play an important role in the field of prefabricated buildings due to their excellent integrity, formwork saving, high industrialization and high construction speed. However, traditional prefabricated floor slabs are inconvenient for transportation, handling and installation and increase costs due to their large weight and thickness. In recent years, modified polystyrene particle prefabricated floor slabs have gradually emerged in the construction industry due to their light weight and good thermal insulation and sound insulation properties. Modified polystyrene particles are granular materials obtained by modifying polystyrene particles through a special process. According to different modification methods and additives, it can be divided into inorganic modified polystyrene particles, organic modified polystyrene particles, etc. This material not only has excellent thermal insulation performance, which helps to reduce the energy consumption of buildings, but also some modified polystyrene particles have good fire resistance, which can meet the fire protection requirements of buildings. Using modified polystyrene particle prefabricated floor slabs can avoid the construction of the sound insulation layer and thermal insulation layer after pouring the cast-in-place layer concrete, thus improving the construction efficiency and reducing the management difficulty at the construction site.

[0003] However, there are still some problems in the production process of the existing modified polystyrene particle prefabricated floor slabs. For example, the modification process of polystyrene particles is relatively complex, resulting in relatively difficult prefabrication in factories and difficult to achieve efficient assembly line production. And in the production process, the modification method of polystyrene particles usually adopts adding polystyrene particles into the modified mother liquor for impregnation stirring and then drying, which easily causes the residual mother liquor on the surface of the modified polystyrene particles, and the chemical components (such as Cl - ) in the mother liquor will have a certain corrosive effect on the steel bars inside the floor slab. In addition, the existing modified polystyrene particle prefabricated floor slabs are usually divided into a precast concrete layer and a cast-in-place concrete layer. Although the precast concrete layer uses lightweight modified polystyrene particle concrete and a steel wire mesh sheet is arranged in the precast layer and truss steel bars are tied and fixed on the steel wire mesh sheet, a grid cloth still needs to be pre-embedded at the bottom of the precast layer to enhance the forming strength at the bottom of the precast layer to prevent cracking during transportation. It can be seen that there are certain defects in the modified polystyrene particle concrete at the bottom of the precast layer. At the same time, the precast floor slab layers are connected by splicing steel bars, and the large-area on-site pouring of the cast-in-place layer makes the construction efficiency to be improved (such as the Chinese utility model patent with the publication number of CN220247340U, a modified polystyrene particle thermal insulation composite floor slab and its precast floor slab).

[0004] In view of the above problems, the present invention provides a modified polystyrene particle assembled floor slab and its modular production method. Summary of the Invention

[0005] The purpose of the present invention is to provide a modified polystyrene particle assembled floor slab and its modular production method, aiming to solve the problems raised in the above background technology.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A modular production method for a modified polystyrene particle assembled floor slab includes the following steps:

[0008] First, an automatic feeding robot is used to automatically feed the polystyrene particle raw materials and boiler biomass combustion materials; then the polystyrene particle raw materials are foamed into foam particles; next, a double-axis double-helix blade self-controlled modification system is used to make the modifier fully contact with the foam particles to complete uniform modification; the modified foam particles are added to a fully automatic mixing system to prepare modified polystyrene particle concrete, which is transported to the designated pouring position of the robot through a self-priming pump and a rubber hose; at the same time, the truss steel bars on the formwork are welded; finally, formwork pouring and surface treatment are carried out to finally obtain the finished product of the modified polystyrene particle assembled floor slab.

[0009] Further, in the step of foaming the polystyrene particle raw materials into foam particles, a fully automatic quantitative pre-expander, a fluidized drying bed, a horizontal steam generator, a permanent magnet variable frequency air compressor, and a steam storage tank are used for foaming the particle raw materials. The specific process is as follows:

[0010] The fully automatic quantitative pre-expander automatically transports the polystyrene particle raw materials to the foaming barrel through a screw feeding device, accurately measures them through an electronic weighing device, and uses a fully enclosed stainless steel barrel for constant pressure foaming; during the foaming process, the steam pressure and temperature in the barrel are kept stable, so that the foaming agent generates uniform bubbles under the action of high-pressure gas; the fluidized drying bed makes the drying medium pass through the plate holes under the grid plate, causing the bed layer of particle raw materials to stir violently and displace each other, forming a mixed bed layer of particle raw materials and gas, achieving good contact between gas and solid phases and achieving the drying purpose; the fuel in the horizontal steam generator burns in the combustion chamber, releases heat energy and heats the water in the horizontally arranged tube bundle to convert the water into steam; the generated steam is discharged from the steam outlet for use by the fully automatic quantitative pre-expander, and the excess steam is compressed into high-pressure gas by the permanent magnet variable frequency air compressor and stored in the steam storage tank.

[0011] Further, the polystyrene particle raw materials are foamed to a diameter of 5 mm.

[0012] Furthermore, the biaxial double-helix blade self-controlled modification system uses the biaxial double-helix blade self-controlled modifier JX-1. The inner wall of the modification cylinder of the biaxial double-helix blade self-controlled modifier JX-1 is covered with a graphene heating film full-coverage temperature automatic control system. The temperature sensor monitors the temperature of the heating film in real time and feeds the temperature signal back to the controller to control the temperature in the barrel between 50°C and 85°C to achieve the dilution of the modifier. After liquefaction, the flow rate of the modifier is identified by the core electronic liquid level sensor, and the flow rate value is transmitted to the control panel. The control panel adjusts the power and valve opening of the atomizing sprayer according to the flow rate value detected by the core electronic liquid level sensor to ensure the uniform spraying of the modifier. The special electronic automatic control air suction system adjusts the fan power by identifying the flow rate and flow velocity of polystyrene particles in the transmission path. The fan generates negative pressure through the rotating blades to suck the polystyrene particles into the modification cylinder and push the polystyrene particles to flow in a slow suspension state in the modification cylinder. During the flow process, the biaxial double-helix blades push the transportation of the polystyrene particles and stir them to make the atomized modifier evenly cover the surface of the polystyrene particles at 360°. After the modification is completed, the special electronic automatic control air suction system sucks the modified polystyrene particles into the external storage bin.

[0013] Furthermore, in the steps of formwork pouring and surface treatment, a pouring robot and a surface treatment robot are respectively used for formwork pouring and surface treatment, and ground rails are provided at both the pouring robot and the surface treatment robot.

[0014] A gantry is provided behind the pouring robot. A slideway is provided on the gantry. The pipeline is suspended on the gantry and moves smoothly left and right as the pouring robot moves.

[0015] The end of the surface treatment robot is equipped with a quick-change disk robot end for installing different tools. A tool rack for placing tools is provided on one side of the surface treatment robot.

[0016] A modified polystyrene particle prefabricated floor slab produced by the modular production method described above includes a commercial concrete layer, a modified concrete layer, a steel bar grid, transverse steel bars, lattice steel bars, embedded bolt holes 1 and embedded bolt holes 2. The commercial concrete layer is a commercial concrete pouring layer. The modified concrete layer is poured above the commercial concrete layer. The steel bar grid is prefabricated and arranged in the commercial concrete layer. The truss steel bars include lattice steel bars and transverse steel bars. The transverse steel bars are located in the modified concrete layer. The bottom surface of the lattice steel bars is about 50 mm higher than the commercial concrete pouring surface. The lattice steel bars are tied and fixed on the steel bar grid. Embedded bolt holes 1 and embedded bolt holes 2 are provided on both the commercial concrete layer and the modified concrete layer.

[0017] Furthermore, the connection between the floor bearing plates adopts a dot-shaped semi-flexible connection; the reserved overlapping length on both sides of the floor bearing plates is 100 mm. The plates overlap with each other and are bolted through the pre-embedded bolt holes I. The distance between the two pre-embedded bolt holes I on both sides is 500 mm; the floor bearing plates are connected to the beam through the pre-embedded bolt holes II; the connection between the floor bearing plates and the concrete beam adopts the method of chemical anchor bolts; the connection between the floor bearing plates and the steel structure beam adopts shear studs, and the reserved diameter of the shear stud holes is 50 mm.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. Uniform modification of polystyrene particles: The double-shaft double-helix blade self-controlled modification machine JX-1 is adopted. Through the high-temperature system, the modifier is atomized and evenly sprayed on the surface of the polystyrene particles, enabling the modifier to come into full contact with the polystyrene particles. This modification method not only improves the modification effect but also avoids the corrosion of the thick modifier on the steel bars, ensuring the durability and safety of the materials.

[0020] 2. Improve the strength of the modified polystyrene particle assembled floor bearing plate: The bottom of the floor bearing plate is a commercial concrete layer, and the top is a modified concrete layer. At the same time, the steel bar grid is arranged in the commercial concrete layer, which is superior to the wire mesh, making the floor bearing plate have higher strength. In addition, the dot-shaped semi-flexible connection method has a certain energy dissipation effect under horizontal loads, further enhancing the seismic performance of the structure.

[0021] 3. Reduce costs: The lightweight assembled floor bearing plate is convenient for transportation, handling, and installation, reducing the manual handling and mechanical transportation costs. At the same time, due to the relatively light weight of the floor bearing plate, the usage amount of the main body of cement or steel structure of the beams and columns is also reduced, thereby reducing the overall construction cost.

[0022] 4. Improve production and construction efficiency: The degree of automation of the production process is high, and the modular production method is adopted, effectively improving the production efficiency. The modified polystyrene particle assembled floor bearing plate is prefabricated integrally in the factory, without the need to be divided into precast layers and cast-in-place layers, nor the need to construct additional sound insulation layers and thermal insulation layers. At the construction site, the dot-shaped semi-flexible connection is adopted, which is convenient and fast to install, effectively shortening the construction period and improving the construction efficiency.

[0023] 5. The functions of heat preservation, sound insulation, and noise reduction are remarkable: The modified polystyrene particles have good heat preservation, sound insulation, and noise reduction functions, and can effectively insulate heat, especially suitable for northern regions, reducing the loss of geothermal heat. The modified polystyrene particles are evenly distributed in the concrete, and the sound insulation effect meets the sound insulation standard, without the need to construct additional sound insulation layers and thermal insulation layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the flowchart of the method of the present invention.

[0025] Figure 2This is a physical diagram of the loading robot in the present invention.

[0026] Figure 3 This is a model diagram of the full-automatic quantitative pre-expander in the present invention.

[0027] Figure 4 This is a model diagram of the fluidized drying bed in the present invention.

[0028] Figure 5 This is a physical diagram of the horizontal steam generator in the present invention.

[0029] Figure 6 This is a model diagram of the permanent magnet variable frequency air compressor in the present invention.

[0030] Figure 7 This is a model diagram of the steam storage tank in the present invention.

[0031] Figure 8 This is a physical diagram of the double-shaft double-helical blade self-controlled modifier in the present invention.

[0032] Figure 9 This is a physical diagram of the full-automatic mixer in the present invention.

[0033] Figure 10 This is a physical diagram of the welding robot in the present invention.

[0034] Figure 11 This is the on-site layout diagram when the present invention performs the template pouring and surface treatment steps.

[0035] Figure 12 This is the structural schematic diagram of the surface treatment robot in the present invention.

[0036] Figure 13 This is the side view of the floor bearing plate in the present invention.

[0037] Figure 14 This is the top view of the floor bearing plate in the present invention.

[0038] In the figure: commercial concrete layer 1, modified concrete layer 2, steel bar grid 3, horizontal steel bar 4, lattice steel bar 5, embedded bolt hole one 6, embedded bolt hole two 7, pouring robot 8, surface treatment robot 9, ground rail 10, gantry 11, pipeline 12, quick-change disk robot end 13, tool rack 14. Detailed implementation manners

[0039] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the present invention, the technical solution of the present invention will be described in detail below, but it should not be construed as a limitation on the implementable scope of the present invention.

[0040] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0041] As Figures 1-12 , an embodiment of the present invention provides a modular production method for a modified polystyrene particle assembled floor slab, and its flow chart is as shown in Figure 1 . The method includes the following steps:

[0042] First, use a feeding robot to automatically feed the polystyrene particle raw material and the boiler biomass combustion material; then foam the polystyrene particle raw material into foam particles; next, make the modifier fully contact with the foam particles through a biaxial double - helix blade self - control modification system to complete uniform modification; add the modified foam particles to a full - automatic mixing system to prepare modified polystyrene particle concrete, and transport it to the designated pouring position of the robot through a self - priming pump and a rubber hose; at the same time, complete the welding of the truss reinforcement on the formwork; finally, carry out formwork pouring and surface treatment work to finally obtain the finished product of the modified polystyrene particle assembled floor slab.

[0043] Among them, feeding: Use a six - degree - of - freedom robot, model BRTIRUS3511A. The feeding robot automatically feeds and discharges the particle raw material and the boiler biomass combustion material, and stacks the packaging bags at the designated position after discharging, and can perform heavy - load work. Make full preparations for foaming the polystyrene particles. The equipment is as shown in Figure 2 .

[0044] Foaming of particle raw materials: Use a fully automatic quantitative pre - foaming machine XL - PSD1600 (as shown in Figure 3 ), a fluidized drying bed XL - LH1400 (as shown in Figure 4 ), a horizontal steam generator LHS0.7 - 0.09 - Y(Q) type (as shown in Figure 5 ), a permanent - magnet variable - frequency air compressor QF - 22G type (as shown in Figure 6 ) and a steam storage tank R22048 type (as shown in Figure 7 ) to foam the particle raw materials.

[0045] The fully automatic quantitative pre-expander automatically conveys the polystyrene (EPS) particle raw materials to the foaming barrel through a spiral feeding device, and accurately measures them through an electronic weighing device to ensure that the input raw material quantity meets the set requirements. It uses a fully enclosed stainless steel barrel for constant pressure foaming. During the foaming process, the steam pressure and temperature in the barrel remain stable, enabling the blowing agent to generate uniform bubbles under the action of high-pressure gas. It has high thermal efficiency and strong penetrability, and can make the density of the foamed particles uniform. By using a PLC programmable controller and a touch screen, it realizes the automatic cyclic operation of the whole process such as feeding, steam supply, temperature control, foaming, and discharging. It can accurately control the operation of each link according to the preset programs and parameters to ensure the stable and efficient operation of the equipment. The operator can also intuitively set parameters and monitor the operation status of the equipment through the touch screen. The fluidized drying bed makes the drying medium pass through the plate holes under the grate at a certain speed, and the flow rate slightly exceeds the critical fluidization speed, causing the granular raw materials in the bed layer to agitate violently and displace each other, forming a mixed bed layer of granular raw materials and gas, realizing good contact between gas and solid phases, strengthening heat and mass transfer, and achieving the drying purpose. The fuel in the horizontal steam generator burns in the combustion chamber, releasing heat energy to heat the water in the horizontally arranged tube bundle, converting the water into steam. The generated steam is discharged from the steam outlet for use by the fully automatic quantitative pre-expander, and the excess steam can be compressed into high-pressure gas by a permanent magnet variable frequency air compressor and stored in the steam storage tank. This process can foam the polystyrene particle raw materials to a diameter of about 5 mm, and then enter the particle storage bin to prepare for the next process.

[0046] Dual-axis double-helix blade self-controlled modification system: It uses a dual-axis double-helix blade self-controlled modifier JX-1 (as Figure 8 shown). Compared with the traditional turbine-type liquid transmission control system, this equipment has significant advantages in terms of liquid transmission rate, stability, and spraying adhesion area. This system is no longer limited by the transmission rate fluctuations that may be caused by voltage fluctuations and equipment losses. Specifically, the dual-axis double-helix blade self-controlled modifier JX-1 is equipped with a core electronic liquid level sensor. Through this high-precision component, it ensures the accurate control of the modifier flow rate, and thus realizes high stability and data adjustability in the production process.

[0047] In addition, the inner wall of the modification cylinder of the double-axis double-helix blade self-controlled modifier JX-1 is covered with a graphene heating film full-coverage temperature self-control system. The temperature sensor monitors the temperature of the heating film in real time and feeds the temperature signal back to the controller. When the temperature reaches the set upper limit value, the controller will automatically adjust the current passing through the heating film to reduce heat generation; when the temperature is lower than the set lower limit value, the current will be increased to raise the temperature. This system can effectively control the temperature in the barrel between 50°C and 85°C, enabling the originally thick modifier to be completely diluted at the critical temperature required for liquefaction, changing from thick to thin, which is beneficial to the flow of the modifier. The liquefied modifier is precisely regulated by an electronic flow control system, that is, the flow rate of the liquefied modifier is identified by the core electronic liquid level sensor, and the flow rate value is transmitted to the control panel. The control panel precisely regulates the power of the sprayer and the opening degree of the valve according to the flow rate value detected by the core electronic liquid level sensor. Eight sprayers are set at the edge of the transmission path, and each sprayer is set at a 45° position on the inner wall of the modification cylinder to ensure that the spray modifier can evenly cover the surface of the polystyrene particles. Under the action of a special electronic self-controlled air suction system, that is, the power of the fan is adjusted by identifying the flow rate and flow velocity of the polystyrene particles in the transmission path. The fan generates negative pressure through the rotating blades, enabling the suction port to suck in the polystyrene particles and pushing the polystyrene particles to flow in a slow suspension state in the modification cylinder. During the flow process, the double-axis double-helix blades not only push the transportation of the polystyrene particles but also continuously stir them to ensure that the spray modifier can evenly cover the particle surface at 360°.

[0048] After the modification is completed, the special electronic self-controlled air suction system sucks the modified polystyrene particles into the external storage bin, and the whole process realizes automatic control through the electronic induction operation screen. The sprayers arranged around the entire transmission path ensure that the surface of each polystyrene particle can be evenly attached with the modifier, thus achieving excellent homogeneity. To sum up, the double-axis double-helix blade self-controlled modifier JX-1 shows remarkable innovation and practicality in both design and function.

[0049] Fully automatic mixing system: The fully automatic mixer JX-3 is equipped with the weighing function of cement, polystyrene particles and water, which can effectively ensure the required mixing ratio coefficient during the mixing process. There are two mixers, upper and lower, inside for two-stage mixing to make the modified polystyrene particles evenly distributed, ensuring the service performance of the lightweight concrete after mixing. At the same time, the machine can automatically feed, discharge and pump, and transport the modified polystyrene particle concrete to the pouring position required by the robot through a self-priming pump and a rubber hose. The equipment is as Figure 9 shown.

[0050] Template steel bar welding: The steel bars are automatically welded by a robot. A six-degree-of-freedom robot is used, with the model BRTIRUS3511A (asFigure 10 As shown in the figure, precise product fixtures are selected according to a specific steel reinforcement cage to ensure the welding position and quality of the robot. There is no need for manual welding on-site, thus reducing the labor intensity of workers and improving the welding quality. Overtime work can be carried out at any time without restrictions.

[0051] Formwork pouring and surface treatment: A six-degree-of-freedom robot, model BRTIRUS3511A, is used, and the on-site layout is as Figure 11 shown. There is a total of one pouring robot 8 and one surface treatment robot 9, and ground rails 10 are provided at both the pouring robot 8 and the surface treatment robot 9.

[0052] Behind the pouring robot 8, there is a gantry 11. There is a slideway on the gantry 11, and the pipeline 12 is suspended on the gantry 11. The pipeline 12 moves smoothly left and right as the pouring robot 8 moves, ensuring consistent material discharge; flow detection is increased to ensure consistent pouring volume each time. The pouring pipe on the pouring robot 8 and the pipeline 12 on the gantry 11 cooperate with the ground rail 10 to complete the pouring operation of cement with a maximum size of 6 meters × 3 meters. The surface treatment robot 9 is responsible for work other than pouring, such as scraping, shoveling, and troweling; the end of the surface treatment robot 9 is equipped with a quick-change disk robot end 13, which can install different tools to achieve rapid tool change. There is a tool rack 14 on one side of the surface treatment robot 9, and tools are placed on the tool rack 14. The surface treatment robot 9 automatically changes tools on the tool rack 14 without human intervention. As Figure 12 shown. Finally, the finished product of the modified polystyrene particle prefabricated floor slab is produced.

[0053] As Figure 13 and Figure 14 shown, an embodiment of the present invention provides a modified polystyrene particle prefabricated floor slab, which includes a commercial concrete layer 1, a modified concrete layer 2, a steel bar grid 3, transverse steel bars 4, lattice steel bars 5, a first embedded bolt hole 6, and a second embedded bolt hole 7. Among them, the commercial concrete layer 1 is a commercial concrete pouring layer, and commercial concrete of a corresponding strength grade can be selected according to actual engineering needs; the modified concrete layer 2 is directly poured above the commercial concrete layer 1 in the factory; the steel bar grid 3 is set in the commercial concrete layer 1 during prefabrication; the truss steel bars include lattice steel bars 5 and transverse steel bars 4. The transverse steel bars 4 are located in the modified concrete layer 2. The bottom surface of the lattice steel bars 5 is about 50 mm higher than the pouring surface of the commercial concrete layer 1, and the lattice steel bars 5 are tied and fixed to the steel bar grid 3; both the commercial concrete layer 1 and the modified concrete layer 2 are provided with the first embedded bolt hole 6 and the second embedded bolt hole 7.

[0054] The connection between floor slabs is made by dot-shaped semi-flexible connections. The reserved overlapping length on both sides of the floor slab is 100 mm. The slabs overlap with each other and are bolted through the pre-embedded bolt holes No. 6. The distance between the two pre-embedded bolt holes No. 6 on both sides is 500 mm. The floor slab is connected to the beam through the pre-embedded bolt holes No. 7, and the hole spacing is determined according to the slab width. The connection between the floor slab and the concrete beam is made by chemical anchor bolts. The connection between the floor slab and the steel structure beam is made by shear studs. The shear stud holes are reserved at intervals of 500 mm on the parallel lines 50 mm away from the edges on both longitudinal sides and two transverse ends of the floor slab.

[0055] In the embodiment of the present invention, the commercial concrete layer 1 in the modified polystyrene particle assembled floor slab is set at the bottom of the floor slab, and the modified concrete layer 2 is set at the top of the floor slab. At the same time, a steel bar grid 3 is arranged in the commercial concrete layer 1, which is different from the wire mesh, enabling the floor slab to have both high strength and heat insulation and sound insulation functions. At the same time, setting the commercial concrete layer 1 at the bottom also ensures the forming strength at the bottom, prevents cracking during transportation, and eliminates the need to pre-embed the grid cloth at the bottom in advance. In addition, the entire modified polystyrene particle assembled floor slab proposed by the present invention is prefabricated in the factory. The bottom commercial concrete layer 1 and the top modified concrete layer 2 are poured in sequence and cured naturally. The atomized modified polystyrene particles can be well combined with the concrete, and the upper and lower parts of the floor slab are naturally combined after curing. At the same time, the bottom surface of the lattice steel bars 5 is 50 mm higher than the pouring surface of the commercial concrete layer 1, and the installation of the bolts also effectively improves the integrity of the slab structure.

[0056] In the existing modified polystyrene particle assembled floor slabs, the modified polystyrene particle layer is often placed at the lower part, and the upper part is cast in situ at the construction site. The connection methods between the slabs and between the slabs and the beams are made by cast-in-place steel bars. However, the present invention adopts a dot-shaped semi-flexible connection method. The slabs overlap with each other and are bolted. The bolt hole diameters are pre-embedded in advance. At the construction site, only the bolts need to be installed and the bolt holes need to be poured to ensure the stability of the connection. The connection between the slab and the concrete beam is made by chemical anchor bolts, and the connection with the steel structure beam is made by shear studs. This method is convenient for installation and transportation, effectively improves the construction efficiency, reduces the construction period. At the same time, the dot-shaped semi-flexible connection method enables the overall structure to play a certain energy dissipation role when subjected to horizontal loads.

[0057] The above are only the preferred embodiments of the present invention. It should be noted that for those skilled in the art, without departing from the concept of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A modular production method for a modified polystyrene particle assembled floor deck, characterized in that: The following steps are involved: First, a loading robot is used to automatically load polystyrene particle raw materials and boiler biomass combustion materials; then the polystyrene particle raw materials are foamed into foam particles; next, a double-axis double-helix blade self-control modification system is used to make the modifier and the foam particles fully contact to complete uniform modification; the modified foam particles are added to a fully automatic mixing system to prepare modified polystyrene particle concrete, and are transported to the casting position designated by the robot through a self-priming pump and a rubber hose; at the same time, the truss steel bars on the template are welded; finally, the template is cast and surface treated to obtain a finished product of a modified polystyrene particle assembled floor deck.

2. The modular production method according to claim 1, characterized in that: In the step of foaming the polystyrene particle raw material into foam particles, a fully automatic quantitative pre-expander, a fluidized drying bed, a horizontal steam generator, a permanent magnet variable frequency air compressor and a steam storage tank are used to foam the particle raw material. The specific process is as follows: The fully automatic quantitative pre-expander automatically transports the polystyrene granular raw materials to the foaming barrel through a spiral feeding device, and accurately measures them through an electronic weighing device, and uses a fully enclosed stainless steel barrel for constant pressure foaming; during the foaming process, the steam pressure and temperature in the barrel remain stable, so that the foaming agent produces uniform bubbles under the action of high-pressure gas; the fluidized drying bed allows the drying medium to pass through the plate holes from under the grate plate, causing the bed granular raw materials to be violently stirred and displaced relative to each other, forming a mixed bed of granular raw materials and gas, achieving good contact between the gas and solid phases and achieving the purpose of drying; the fuel of the horizontal steam generator burns in the combustion chamber, releasing heat energy and heating the water in the horizontally arranged tube bundle, converting the water into steam; the generated steam is discharged from the steam outlet for use in the fully automatic quantitative pre-expander, and the excess steam is compressed into high-pressure gas by a permanent magnet variable frequency air compressor and stored in a steam storage tank.

3. The modular production method according to claim 1, characterized in that: The polystyrene particle raw material is foamed to a diameter of 5 mm.

4. The modular production method according to claim 1, characterized in that: The double-axis double-helix blade self-control modification system adopts a double-axis double-helix blade self-control modification machine JX-1. The inner wall of the modification cylinder of the double-axis double-helix blade self-control modification machine JX-1 adopts a graphene heating film to fully cover the temperature automatic control system. The temperature of the heating film is monitored in real time by a temperature sensor and the temperature signal is fed back to the controller to control the temperature in the barrel between 50°C and 85°C to achieve the dilution of the modifier. The flow rate of the liquefied modifier is identified by the core electronic liquid level sensor, and the flow rate value is transmitted to the control panel. The control panel controls the mist sprayer according to the flow rate value detected by the core electronic liquid level sensor. The power and valve opening are regulated to ensure uniform spraying of the modifier; the special electronic automatic wind suction system adjusts the fan power by identifying the flow rate and flow velocity of the polystyrene particles in the transmission path. The fan generates negative pressure through rotating blades, sucks the polystyrene particles into the modification cylinder, and pushes the polystyrene particles to flow in a slowly suspended state in the modification cylinder; during the flow process, the double-axis double-helix blades push the polystyrene particles to be transported and stirred, so that the mist modifier is evenly covered on the surface of the polystyrene particles at 360°; after the modification is completed, the special electronic automatic wind suction system sucks the modified polystyrene particles into the external storage bin.

5. The modular production method according to claim 1, characterized in that: In the step of performing template casting and surface treatment, a casting robot and a surface treatment robot are used to perform template casting and surface treatment respectively, and the casting robot and the surface treatment robot are both provided with ground rails; A gantry is provided at the rear of the pouring robot, a slide is provided on the gantry, the pipeline is suspended on the gantry, and the pipeline moves smoothly left and right with the movement of the pouring robot; The end of the surface treatment robot is provided with a quick-change disc robot end, and the quick-change disc robot end is used to install different tools; one side of the surface treatment robot is provided with a tool rack for placing tools.

6. A modified polystyrene particle assembled floor deck produced according to the modular production method according to any one of claims 1 to 5, characterized in that: It comprises a commercial concrete layer, a modified concrete layer, a steel mesh, transverse steel bars, lattice steel bars, embedded bolt hole one and embedded bolt hole two; the commercial concrete layer is a commercial concrete casting layer; the modified concrete layer is cast on the top of the commercial concrete layer; the steel mesh is arranged in the commercial concrete layer during prefabrication; the truss steel bars comprise lattice steel bars and transverse steel bars, the transverse steel bars are located in the modified concrete layer, the bottom surface of the lattice steel bars is about 50 mm higher than the commercial concrete casting surface, and the lattice steel bars are tied and fixed on the steel mesh; embedded bolt hole one and embedded bolt hole two are provided on both the commercial concrete layer and the modified concrete layer.

7. The modified polystyrene particle assembled floor decking according to claim 6, characterized in that: The floor decking plates are connected by point-shaped semi-flexible connection; the overlapped reserved length on both sides of the floor decking plates is 100mm, the plates are overlapped and bolted through embedded bolt holes one, and the spacing between the embedded bolt holes one on both sides is 500mm; the floor decking plates are connected to the beams through embedded bolt holes two; the floor decking plates are connected to the concrete beams by chemical anchor bolts; the floor decking plates are connected to the steel structure beams by shear nails, and the shear nail hole diameter is reserved to 50mm.

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