Road surface based on pressure-bearing quick-laying floor and method for producing pressure-bearing quick-laying floor

Abstract

The present application belongs to the technical field of mine engineering, and particularly relates to a road surface based on pressure-bearing quick-laying floor and a production method of the pressure-bearing quick-laying floor, comprising: a graded gravel roadbed laid on the floor of a coal mine tunnel; and a plurality of pressure-bearing quick-laying floors laid above the graded gravel roadbed and fixedly connected between two adjacent pressure-bearing quick-laying floors. The present application provides a road surface structure based on pressure-bearing quick-laying floor, comprising a graded gravel roadbed and pressure-bearing quick-laying floors, the pressure-bearing quick-laying floors being laid on the wheel pressure lines of the graded gravel roadbed, and the plurality of pressure-bearing quick-laying floors forming a chain-type integral road surface; the graded gravel roadbed is laid on the tunnel floor, the load of the rubber-tyred vehicle can be evenly dispersed on the tunnel floor, thereby ensuring the safe operation of the rubber-tyred vehicle, and after the service life of the tunnel is completed, the gravel and the pressure-bearing floor can be recycled for reuse in the next tunnel, thereby saving material cost and transportation cost.

Description

Technical Field

[0001] This invention belongs to the field of mining engineering technology, and particularly relates to road surfaces based on pressure-bearing quick-lay flooring and the production method of pressure-bearing quick-lay flooring. Background Technology

[0002] Currently, the trackless transport roads in underground coal mines are mainly made of concrete pavement. Due to the influence of mining stress, geological conditions of the roadway floor, and frequent rolling of heavy vehicles, the pavement is easily damaged by factors such as roadway floor heave and heavy vehicle pressure. The repair of concrete pavement is time-consuming, labor-intensive, and wasteful of resources, which seriously affects transportation safety and production efficiency.

[0003] To address these issues, some mines have used steel plates or high-molecular-weight polyethylene (PMPE) paving mats to pave roadways. However, these materials are prone to wear and deformation under the frequent pressure of heavy vehicles. Furthermore, steel plates are susceptible to corrosion, and PMPE is prone to aging, resulting in short service lives and frequent replacements, leading to high maintenance costs. In addition, these materials are often difficult to recycle and reuse after disposal, causing resource waste and environmental pollution.

[0004] Therefore, there is an urgent need for road surfaces based on pressure-bearing quick-lay flooring and for methods of producing pressure-bearing quick-lay flooring. Summary of the Invention

[0005] The purpose of this invention is to provide a road surface based on a pressure-bearing quick-lay floor and a method for producing the pressure-bearing quick-lay floor, so as to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] Road surfaces based on load-bearing quick-lay flooring include:

[0008] Graded gravel roadbed, laid on the floor of coal mine roadways;

[0009] Multiple load-bearing quick-lay floorings are laid on top of the graded gravel roadbed, and adjacent load-bearing quick-lay floorings are fixedly connected.

[0010] Preferably, the pressure-bearing quick-lay floor includes:

[0011] Pressure floor;

[0012] Anti-slip texture is formed on the top surface of the pressure floor;

[0013] Multiple connecting grooves are formed on the top surface of the pressure-bearing floor and located at the outer edge of the pressure-bearing floor. The multiple connecting grooves are equally spaced around the perimeter, and the multiple connecting grooves on the adjacent sides of the two pressure-bearing floors are correspondingly arranged.

[0014] Bolt holes are formed on the bottom wall of the connecting groove, and bolts are threaded into the bolt holes;

[0015] The connecting plate is fixedly connected at both ends to the two corresponding connecting slots by bolts.

[0016] 3. A method for producing the pressure-bearing quick-lay flooring as described in claim 2, comprising the following steps:

[0017] S1, hot melt raw material;

[0018] S2, casting;

[0019] S3, Cooling and demolding;

[0020] S4. Post-processing molding.

[0021] Preferably, in S1, the process of hot-melting the raw material includes:

[0022] S11. Add the raw materials to the molten reaction vessel according to the required amount of the formula and heat to melt them;

[0023] S12. Add catalyst to the molten material reactor, stir evenly, heat the molten material reactor and dehydrate it under vacuum, keep it at 110℃ for 15-20 minutes, and require the moisture content to drop to below 300ppm.

[0024] S13. Stop vacuum dehydration and transfer the molten material to the activation material reactor; add the catalyst to the activation material reactor and stir evenly to obtain the raw material to be cast;

[0025] The catalyst is added within 15 minutes before the molten material is poured.

[0026] Preferably, in S2, the casting mold needs to be heated to 180-250℃ and kept warm for 1-2 hours before casting;

[0027] During the pouring process, the temperature of the pouring mold is maintained at 160℃-170℃, and the heat preservation time is 15-20 minutes.

[0028] Preferably, in step S4, the rough product after cooling and demolding is subjected to heat treatment at a temperature of 80-100°C for a duration of 24 hours or more.

[0029] The heat-treated rough product is machined to obtain pressure-bearing quick-lay flooring.

[0030] Preferably, the raw materials include, by mass fraction: 100% caprolactam, 0.5-0.55% flame retardant, 0.1-0.2% antistatic agent sprayed carbon black, and 0.5-0.55% plasticizer.

[0031] Preferably, the catalyst comprises: 0.2-0.25 NaOH by mass fraction.

[0032] Preferably, the co-catalyst comprises: TDI 0.25-0.3 by mass fraction.

[0033] Compared with the prior art, the present invention has the following advantages and technical effects:

[0034] This invention provides a road surface structure based on a pressure-bearing quick-lay floor, including a graded gravel subgrade and a pressure-bearing quick-lay floor. The pressure-bearing quick-lay floor is laid on the wheel tracks of the graded gravel subgrade, and multiple pressure-bearing quick-lay floors form a chain-like integral road surface. The graded gravel subgrade is laid on the roadway floor, which can evenly distribute the heavy load of rubber-tired vehicles onto the roadway floor, thereby ensuring the safe operation of the rubber-tired vehicles. After the roadway reaches the end of its service life and is abandoned, the gravel and the pressure-bearing floor can be recycled for reuse in the next roadway, saving material costs and surface transportation costs. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the connection of the pressure-bearing floor in this invention;

[0037] Figure 2 This is a schematic diagram of the reinforcing component in Example 2;

[0038] Among them, 2 is the bearing floor; 3 is the connecting groove; 4 is the bolt hole; 5 is the anti-slip texture; 6 is the connecting plate; 7 is the bolt; 101 is the longitudinal reinforcement; 102 is the transverse reinforcement; 103 is the reinforcing clip; 104 is the connecting hole; and 105 is the connecting rib. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] Reference Figure 1This embodiment discloses a road surface based on a pressure-bearing quick-lay floor, including:

[0043] Graded gravel roadbed, laid on the floor of coal mine roadways;

[0044] Multiple load-bearing quick-lay floorings are laid on top of graded gravel roadbeds, with adjacent load-bearing quick-lay floorings being fixedly connected.

[0045] Further optimization of the plan, the pressure-bearing quick-lay floor includes:

[0046] Pressure floor 2; Pressure floor 2 is a rectangular panel with a thickness of 50-60mm cast from MC nylon material;

[0047] Anti-slip texture 5 is formed on the top surface of the pressure floor 2;

[0048] Multiple connecting grooves 3 are all opened on the top surface of the pressure floor 2 and located at the outer edge of the pressure floor 2. The multiple connecting grooves 3 are evenly spaced around the perimeter, and the multiple connecting grooves 3 on the adjacent sides of the two pressure floor 2 are correspondingly arranged.

[0049] Bolt hole 4 is formed on the bottom wall of connecting groove 3, and bolt 7 is connected to the internal thread of bolt hole 4;

[0050] The connecting plate 6 is fixedly connected to the two corresponding connecting slots 3 at both ends by bolts 7.

[0051] A production method for manufacturing load-bearing quick-lay flooring includes the following steps:

[0052] S1, hot melt raw material;

[0053] S2, casting;

[0054] S3, Cooling and demolding;

[0055] S4. Post-processing molding.

[0056] Further optimization of the scheme: In S1, the process of hot-melting raw materials includes:

[0057] S11. Add the raw materials to the molten reaction vessel according to the required amount of the formula and heat to melt them;

[0058] S12. Add catalyst to the molten material reactor, stir evenly, heat the molten material reactor and dehydrate it under vacuum, keep it at 110℃ for 15-20 minutes, and require the moisture content to drop to below 300ppm.

[0059] S13. Stop vacuum dehydration and transfer the molten material to the activation material reactor; add the catalyst to the activation material reactor and stir evenly to obtain the raw material to be cast;

[0060] The catalyst is added within 15 minutes before the molten material is poured.

[0061] Further optimization of the scheme: In S2, the casting mold needs to be heated to 180-250℃ and kept warm for 1-2 hours before pouring;

[0062] During the pouring process, the temperature of the pouring mold is maintained at 160℃-170℃, and the heat preservation time is 15-20 minutes.

[0063] Further optimize the scheme by subjecting the rough product after cooling and demolding to heat treatment in S4. The heat treatment temperature is 80-100℃ and the heat treatment time is greater than or equal to 24 hours.

[0064] The heat-treated rough product is machined to obtain pressure-bearing quick-lay flooring.

[0065] The further optimized formula includes the following raw materials by mass fraction: caprolactam 100, flame retardant 0.5-0.55, antistatic agent sprayed carbon black 0.1-0.2, and plasticizer 0.5-0.55.

[0066] Further optimization of the scheme, the catalyst includes: NaOH 0.2-0.25 by mass fraction.

[0067] Further optimization of the solution includes the following co-catalysts: by mass fraction: TDI 0.25-0.3%.

[0068] The production method of pressure-bearing quick-lay flooring specifically includes the following steps:

[0069] The first step is to use caprolactam as a raw material, along with flame retardant, antistatic agent, sprayed carbon black, and plasticizer, and add them together into the molten reaction vessel according to the required formula amount, and heat them to melt.

[0070] The second step is to add the catalyst into the molten material reactor and stir it evenly; heat the molten material reactor and dehydrate it under vacuum, maintaining it at 110°C for 15-20 minutes, requiring the moisture content to drop below 300ppm;

[0071] The third step is to stop vacuum dehydration and transfer the molten material to the activation material reactor; add the co-catalyst TDI to the activation material reactor and stir evenly; set aside for use; the co-catalyst TDI should be added within 15 minutes before the molten material is poured to prevent premature polymerization of the molten material.

[0072] Simultaneously heat the pressure floor mold to 180-250℃ and keep it warm for 1-2 hours;

[0073] Step 4, casting: Quickly pour the activated material from the activated material reactor into the mold after it has been kept at a constant temperature for 1-2 hours;

[0074] Step 5, constant temperature polymerization: The temperature of the mold is maintained at 160℃-170℃ by the heating and heat preservation system for 15-20 minutes, and the polymerization reaction is completed.

[0075] Step 6, Cooling and Demolding: Cool the mold with cooling water or oil; after cooling, open the mold and remove the rough product of the pressure-bearing floor.

[0076] Step 7, water bath treatment: After demolding, the rough product is subjected to heat treatment processes such as boiling in water at 80-100℃ or oil bath for no less than 24 hours;

[0077] Step 7, Machining: The surface shape and dimensions of the pressure-bearing floor 2 are further processed by mechanical processing to become the finished product.

[0078] Among them, the anti-slip texture 5 is a raised structure with a raised height of 4-8mm and a texture width of 8-14mm;

[0079] The anti-slip texture 5 can be set as a "W" shaped raised structure, with a front and rear texture spacing of 45-55mm;

[0080] The anti-slip texture 5 can be set as a strip-shaped raised structure, with a front and rear texture spacing of 45-55mm;

[0081] The anti-slip texture 5 can be set as a grid-like raised structure, with a grid size of 45-55mm square.

[0082] The length of the pressure-bearing floor 2 is 1000-3600mm, and the width is 600-1500mm;

[0083] For the bearing floor 2, the preferred sizes are 1200×1200×60mm (length×width×thickness), 1200×600×60mm, 1500×1000×60mm, and 2000×1000×60mm. Choose one according to the road surface conditions.

[0084] Laying process:

[0085] First, transport the bearing floor 2 underground for later use; then lay a layer of large-diameter graded base ballast on the bottom of the transport roadway and level it, similar to the gravel roadbed of a railway; then lay a layer of smaller-diameter gravel ballast on top and level it to prevent the bearing floor from directly contacting the larger stones when the rubber-tired vehicles are running, thus preventing point contact stress and damage; on the gravel roadbed, lay the road surface consisting of two bearing floors according to the wheel track width of the rubber-tired vehicles, and connect and reinforce them as a whole.

[0086] Specific connection process: Adjacent connecting grooves 3 are put together to form an integral groove. The integral groove is filled with a connecting plate 6. The connecting plate 6 has two bolt holes at both ends. The two bolt holes correspond to the bolt holes 4 of the two pressure-bearing floorboards. After tightening the bolts 7, the pressure-bearing floorboards 2 are connected together one by one.

[0087] Specific formula table of pressure floor materials

[0088]

[0089] Optimal Formulation Table for Pressure Flooring

[0090]

[0091] The present invention has the following advantages:

[0092] 1. Compared with concrete pavement, this invention can be laid quickly, completely improving the problems of long laying cycle, high damage rate, high labor intensity and dust generation of concrete pavement, thereby improving the underground working environment, increasing construction efficiency, reducing production costs, and achieving safe and efficient production.

[0093] 2. The pressure-bearing floor 2 can be quickly recycled after use in the tunnel, and the roadbed materials such as stones can also be recycled and reused, saving energy, reducing emissions, and saving costs.

[0094] 3. Compared with concrete pavement, the graded stone roadbed laid on the tunnel floor can evenly distribute the heavy load of rubber-tired vehicles onto the tunnel floor. The relative movement between the stones can also buffer the road surface torsion caused by tunnel deformation, thereby ensuring the safe operation of rubber-tired vehicles.

[0095] 4. The pressure-bearing floor 2 is cast from MC nylon, providing anti-slip, wear-resistant, and high-pressure-bearing capacity. MC nylon, also known as cast nylon or monomer-cast nylon, is polymerized from caprolactam as the main raw material. However, ordinary MC nylon has shortcomings such as high elastic modulus, poor low-temperature toughness, and poor dimensional stability, which cannot meet the requirements of industrial applications such as coal mines. The casting product formed by modifying it through the process of this invention to toughen, reduce wear, and improve water absorption, flame retardancy, antistatic properties, and anti-scaling properties has a high molecular weight, 33 times that of nylon 66. It has high strength, rigidity, and hardness, creep resistance, wear resistance, noise absorption, and extremely stable chemical properties. Its comprehensive mechanical properties are far superior to other polymer materials, and it can be enhanced with toughening, flame retardancy, and antistatic properties to meet the requirements of high load-bearing capacity and explosion protection in underground coal mines.

[0096] 5. By adopting unique structural dimensions, it can meet the usage requirements of underground coal mine transportation roadways, relocation channels for large coal mining equipment, and other roadways where it is difficult to pave concrete pavement. This greatly improves the constraints imposed by unfavorable road conditions in the mining area on the underground trackless transportation system and ensures the safe operation of heavy-duty rubber-tired vehicles and other rubber-tired vehicles.

[0097] 6. The dimensions of the pressure-bearing floor 2 connection combination can be combined according to the width of the rubber-tired vehicle tires to ensure that the size of the MC nylon floor matches the diversity of alleyways efficiently, so as to achieve the purpose of economy and practicality.

[0098] This invention also proposes a manufacturing equipment for pressure-bearing flooring, including a double 500Kg molten material vacuum reactor and a double-mold, double-opening hydraulic automatic mold closing machine; through the double 500Kg molten material vacuum reactor, one melts and activates while the other discharges and casts, alternating to achieve uninterrupted melting and casting; through the double-mold, double-opening hydraulic automatic mold closing machine, one mold feeds and casts while the other is constant-temperature polymerizes, alternating to achieve uninterrupted continuous casting production.

[0099] The double-mold, double-opening hydraulic automatic mold closing machine has four corner guide pillars arranged on the base, two sets of hydraulic cylinder systems symmetrically arranged, and an ejector rod type demolding mechanism. Two sets of molds are symmetrically arranged on the four corner guide pillars. The molds include a fixed mold and a moving mold. The two sets of hydraulic cylinder systems control the movement of the moving mold to open and close the mold. The ejector rod type demolding mechanism is linked with the hydraulic cylinders of the hydraulic cylinder system. When the mold is opened, it drives the demolding mechanism to automatically eject the product.

[0100] This invention employs an electric heating and heat preservation system to heat and preserve the mold. Specifically, heat preservation oil chambers are provided at the rear of both the moving and fixed mold cavities, and heat-conducting oil is added to the heat preservation oil chambers through the oil filling port; electric heating tubes are arranged in the heat preservation oil chambers to heat the heat-conducting oil; the heat preservation oil chambers are equipped with an oil filling port and an oil drain port; and temperature measuring tubes are arranged in the heat preservation oil chambers to monitor the oil temperature.

[0101] Example 2

[0102] Reference Figure 2 The difference between this embodiment and Embodiment 1 is that, in this embodiment, the pressure-bearing floor 2 has a pre-installed reinforcing component inside, which includes:

[0103] Multiple longitudinal ribs 101 and multiple transverse ribs 102 are arranged intersectingly, with the longitudinal ribs 101 and transverse ribs 102 arranged in a staggered sequence. The longitudinal ribs 101 and transverse ribs 102 are perpendicular to each other. Reinforcing clips 103 are installed within the mesh formed by the multiple longitudinal ribs 101 and multiple transverse ribs 102. Four connecting holes 104 are provided on the reinforcing clips 103, located near the middle of the four sides of the reinforcing clips 103. It is estimated that there are connecting holes 104 within the connecting holes 104. One end of the reinforcing bar 105 is connected to the two adjacent transverse reinforcing bars 102 on the upper and lower sides of the reinforcing clamp 103. The connecting bars 105 on the left and right sides of the reinforcing clamp 103 are connected to the two adjacent longitudinal reinforcing bars 101. The longitudinal reinforcing bars 101 and the transverse reinforcing bars 102 are connected through the reinforcing clamp 103. The intersection of the longitudinal reinforcing bars 101 and the transverse reinforcing bars 102 is not connected. The two ends of the longitudinal reinforcing bars 101 are connected to the transverse reinforcing bars 102 located at both ends. The two ends of the transverse reinforcing bars 102 are connected to the longitudinal reinforcing bars 101 located at both ends.

[0104] The horizontal reinforcing bars 102, longitudinal reinforcing bars 101, and connecting reinforcing bars 105 are all made of multi-strand steel wires. The reinforcing clips 103 are square steel plates. The reinforcing clips 103 connect the horizontal reinforcing bars 102 and longitudinal reinforcing bars 101, which greatly increases the flexibility of the pressure-bearing floor 2. At the same time, by embedding the horizontal reinforcing bars 102, longitudinal reinforcing bars 101, and reinforcing clips 103 in the pressure-bearing floor 2, the overall strength of the pressure-bearing floor 2 is increased, making the pressure-bearing floor 2 less prone to damage and increasing the recyclability of the pressure-bearing floor 2. Meanwhile, the bolt holes 4 are opened on the reinforcing clips 103 located at the edge, which increases the strength of the connection between two adjacent pressure-bearing floor 2s and makes the connection between two adjacent pressure-bearing floor 2s less likely to break.

[0105] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0106] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A road surface based on a pressure-bearing quick-lay floor, characterized in that, include: Graded gravel roadbed, laid on the floor of coal mine roadways; Multiple load-bearing quick-lay floorings are laid on top of the graded gravel roadbed, and adjacent load-bearing quick-lay floorings are fixedly connected. The pressure-bearing quick-lay floor includes: Pressure-bearing floor (2), the raw materials include caprolactam, flame retardant, antistatic agent, sprayed carbon black, and plasticizer; Anti-slip texture (5) is formed on the top surface of the pressure floor (2); Multiple connecting grooves (3) are provided on the top surface of the pressure-bearing floor (2) and located at the outer edge of the pressure-bearing floor (2). The multiple connecting grooves (3) are equally spaced around the perimeter, and the multiple connecting grooves (3) on the adjacent sides of the two pressure-bearing floors (2) are correspondingly provided. Bolt hole (4) is provided on the bottom wall of the connecting groove (3), and bolt (7) is threaded into the bolt hole (4); The connecting plate (6) is fixedly connected at both ends to the two corresponding connecting grooves (3) by the bolts (7); The pressure-bearing floor (2) has a pre-installed reinforcing component inside, which includes: Multiple longitudinal ribs (101) and multiple transverse ribs (102) are arranged intersectingly, with the longitudinal ribs (101) and transverse ribs (102) arranged in a staggered sequence. The longitudinal ribs (101) and transverse ribs (102) are perpendicular to each other. Reinforcing clips (103) are provided within the mesh formed by the multiple longitudinal ribs (101) and multiple transverse ribs (102). Four connecting holes (104) are provided on the reinforcing clips (103), and the four connecting holes (104) are located near the middle of the four sides of the reinforcing clips (103). It is estimated that there are connecting ribs (104) in the connecting holes (104). At one end of 05), the connecting rib (105) located on the upper and lower sides of the reinforcing clip (103) is fixedly connected to the two adjacent transverse ribs (102), and the connecting rib (105) located on the left and right sides of the reinforcing clip (103) is fixedly connected to the two adjacent longitudinal ribs (101). The longitudinal ribs (101) and the transverse ribs (102) are connected through the reinforcing clip (103). The intersection of the longitudinal ribs (101) and the transverse ribs (102) is not connected. The two ends of the longitudinal ribs (101) are fixedly connected to the transverse ribs (102) located at both ends. The two ends of the transverse ribs (102) are fixedly connected to the longitudinal ribs (101) located at both ends. The horizontal reinforcing bars (102), the longitudinal reinforcing bars (101), and the connecting reinforcing bars (105) are all steel bars made of multiple strands of steel wire. The reinforcing clips (103) are square steel plates. The horizontal reinforcing bars (102) and the longitudinal reinforcing bars (101) are connected by the reinforcing clips (103), which greatly increases the flexibility of the pressure floor (2). At the same time, by embedding the horizontal reinforcing bars (102), the longitudinal reinforcing bars (101), and the reinforcing clips (103) in the pressure floor (2), the overall strength of the pressure floor (2) is increased, making the pressure floor (2) less prone to damage and increasing the recyclability of the pressure floor (2). Meanwhile, the bolt holes (4) are opened on the reinforcing clips (103) located at the edge, which increases the strength of the connection between two adjacent pressure floors (2) and makes the connection between two adjacent pressure floors (2) less prone to breakage.

2. A method for producing the pressure-bearing quick-lay flooring as described in claim 1, characterized in that, Includes the following steps: S1, hot melt raw material; S2, casting; S3, Cooling and demolding; S4. Post-processing and molding; In S1, the process of hot-melting the raw materials includes: S11. Add the raw materials to the molten reaction vessel according to the required amount of the formula and heat to melt them; S12. Add catalyst to the molten material reactor, stir evenly, heat the molten material reactor and dehydrate it under vacuum, keep it at 110℃ for 15-20 minutes, and require the moisture content to drop to below 300ppm. S13. Stop vacuum dehydration and transfer the molten material to the activation material reactor; add the catalyst to the activation material reactor and stir evenly to obtain the raw material to be cast; The catalyst should be added within 15 minutes before the molten material is poured. In S2, the casting mold needs to be heated to 180-250℃ before casting and kept warm for 1-2 hours. During the pouring process, the temperature of the pouring mold is maintained at 160℃-170℃, and the holding time is 15-20 minutes; In S4, the rough product after cooling and demolding is subjected to heat treatment at a temperature of 80-100℃ for a time of 24 hours or more. The heat-treated rough product is machined to obtain pressure-bearing quick-lay flooring.

3. The method for producing pressure-bearing quick-lay flooring according to claim 2, characterized in that, The raw materials include, by mass fraction: 100% caprolactam, 0.5-0.55% flame retardant, 0.1-0.2% antistatic agent sprayed carbon black, and 0.5-0.55% plasticizer.

4. The method for producing pressure-bearing quick-lay flooring according to claim 2, characterized in that, The catalyst comprises, by mass fraction: 0.2-0.25 NaOH.

5. The method for producing pressure-bearing quick-lay flooring according to claim 2, characterized in that, The co-catalyst comprises, by mass fraction: 0.25-0.3% TDI.

Images