Construction waste regenerated wallboard with temperature adjusting function and preparation method thereof

Abstract

The invention discloses a construction waste regenerated wallboard with a temperature adjusting function and a preparation method thereof, and relates to the technical field of construction waste regenerated wallboards, the construction waste regenerated wallboard comprises the following raw materials: waste foamed plastic, waste glass, waste tiles, waste concrete, cement, fly ash, stone powder, water, an additive, paraffin microcapsules and an epoxy resin coating. The paraffin microcapsule phase change material can store a large amount of heat energy in the wallboard and realize a temperature regulation function, so that the prepared building waste regenerated wallboard has an excellent temperature regulation function, the heat efficiency of the wallboard is improved, the indoor temperature of a building can be more effectively kept in cold and warm seasons, and through effective temperature regulation, the indoor temperature of the building can be effectively kept. Dependence on traditional energy is reduced, energy consumption of a building is reduced, the wallboards help smooth indoor temperature fluctuation by absorbing and releasing heat, and a more comfortable living environment is provided.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of building waste recycled wallboard, in particular to a building waste recycled wallboard with a temperature regulating function and a preparation method thereof. Background Art

[0002] Recycled wall panels from construction waste are made by converting waste generated by demolished buildings, building decoration and renovation, etc. into reusable building materials through a series of processing. The existing recycled wall panels from construction waste lack temperature regulation function and it is difficult to effectively maintain indoor temperature in cold and warm seasons.

[0003] The defects of the existing construction waste recycled wallboard preparation are:

[0004] 1. Patent document CN108147753B discloses a recycled concrete, assembled composite wallboard and its preparation method, which mainly considers improving the compressive strength while ensuring that the density, thermal conductivity and other properties are at least at the same level as the existing recycled concrete, but does not consider how to make the construction waste recycled wallboard have excellent temperature regulation function;

[0005] 2. Patent document CN106278377B discloses a self-insulating lightweight wallboard made of fully recycled lightweight aggregate concrete and a preparation method thereof. It mainly considers how to improve the waterproof, sound insulation and heat insulation effects, but does not consider how to improve the uniformity of the quality of the raw materials to avoid the final performance of the recycled wallboard being affected by the large fluctuations in the quality of the raw materials;

[0006] 3. Patent document CN109678435B discloses a GRC decorative curtain wall panel made of low-quality recycled fine aggregate and a preparation method thereof. It mainly considers how to improve the utilization rate of building demolition waste, but does not consider how to improve the efficiency of crushing large pieces of building waste into the required particle size;

[0007] 4. Patent document CN108546048B discloses a foam concrete composite wall panel core material and a preparation method thereof. It mainly considers how to achieve the resource recycling of solid waste and broaden the use of construction solid waste, but does not consider how to improve the waterproof and moisture-proof performance of the wall panel, thereby extending the service life of the wall panel. Summary of the invention

[0008] The object of the present invention is to provide a construction waste recycled wallboard with temperature regulating function and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a construction waste recycled wallboard with temperature regulating function, comprising the following raw materials: waste foam plastics, waste glass, waste bricks and tiles, waste concrete, cement, fly ash, stone powder, water, admixture, paraffin microcapsules and epoxy resin coating;

[0010] Waste foam plastics, waste glass, waste bricks and tiles, waste concrete, cement, fly ash, stone powder, water, admixtures and paraffin microcapsules are mixed and extruded in a mass ratio of 14: (13-18): (11-19): (16-27): (15-22): (9-15): (5-13): (16-33): (0.5-8.5): (1-9) to obtain a 20 mm thick construction waste recycled wallboard, which has better temperature regulation performance than the existing construction waste recycled wallboard.

[0011] Preferably, epoxy resin coating is sprayed on the surface of the prepared construction waste recycled wall to form a protective film with a thickness of 2-3 mm.

[0012] Preferably, the admixture is a mixture of polycarboxylate water reducer, gypsum retarder and sodium carboxymethyl cellulose in a mass ratio of .

[0013] Preferably, the preparation method of the construction waste recycled wallboard with temperature regulation function is as follows:

[0014] Step S1: Raw material processing: Classify the construction waste with complex sources, select the usable parts, and pre-process them;

[0015] Step S2: Crushing and screening: The usable construction waste selected in step S1 is subjected to multi-stage crushing treatment, and aggregate particles with qualified particle sizes are screened out;

[0016] Step S3: cleaning and purification: cleaning the aggregate particles screened in step S2 and drying them for later use;

[0017] Step S4: Mixing and stirring: adding waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, fly ash, stone powder, water, admixtures and paraffin microcapsules into a mixer in sequence and mixing them evenly;

[0018] Step S5: extrusion molding: using an extruder to extrude the mixed materials to form a 20 mm thick construction waste recycled wallboard;

[0019] Step S6: curing and curing: placing the wallboard formed in step S6 in a constant temperature and humidity environment with a temperature of 22° C. and a humidity of 65% for curing and curing;

[0020] Step S7: Surface treatment: Then, the construction waste recycled wallboard solidified in step S6 is subjected to surface treatment to form a protective film;

[0021] Step S8: Quality testing: testing the compressive strength and temperature regulation performance of the prepared construction waste recycled wallboard.

[0022] Preferably, the step S1 further includes the following steps:

[0023] Step S11: Classification: Use fully automatic construction waste classification and sorting equipment to classify the construction waste and select waste foam plastics, waste glass, waste bricks and tiles, and waste concrete;

[0024] Step S12: flotation treatment: using hydraulic flotation equipment to treat the waste glass, waste bricks and tiles and waste concrete selected in step S11 respectively, and removing dirt and fine powder from the waste glass, waste bricks and tiles and waste concrete;

[0025] Step S13: Drying: Use drying equipment to quickly remove moisture from the waste glass, waste bricks and tiles and waste concrete after flotation treatment, wherein the drying temperature is 80-90° C. and the drying time is 30-45 minutes.

[0026] Preferably, the step S2 further includes the following steps:

[0027] Step S21: primary crushing: using a crusher to perform preliminary crushing treatment on the selected waste foam plastics, waste glass, waste bricks and tiles, and waste concrete;

[0028] Step S22: Magnetic separation: using a magnetic separator to recover scrap steel from the scrap concrete crushed in step S21;

[0029] Step S23: Secondary crushing: using a crusher to further crush the waste bricks and tiles, waste foam plastics, waste glass that have undergone primary crushing and the waste concrete separated in step S22 to obtain waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles;

[0030] Step S24: wind separation: separating paper and plastic from the waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles obtained in step S23 by a wind separator;

[0031] Step S25: Screening treatment: Use screening equipment to screen the waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles separated in step S24, remove aggregate particles with a particle size outside 1-1.5 mm, and send aggregate particles larger than 1.5 mm back to step S23 for secondary crushing again.

[0032] Preferably, the step S3 further includes the following steps:

[0033] Step S31: water washing treatment: placing the screened waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles into a washing tank for washing to remove dust and impurities on the surface of the aggregate particles;

[0034] Step S32: Drying treatment: Dry the washed aggregate particles at a temperature of 80° C. for 30 minutes.

[0035] Preferably, the step S4 further includes the following steps:

[0036] Step S41: Mixing raw materials: first add the processed waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixtures into a mixer, stir for 25-30 minutes at a stirring speed of 1.5-1.6 r / s, then add fly ash and stone powder, and continue stirring for 10 minutes at a stirring speed of 1.5 r / s;

[0037] Step S42: Performance adjustment: Add paraffin microcapsules to the mixed material in step S41 and stir for 15 minutes at a stirring speed of 1.5 r / s.

[0038] Preferably, the step S7 further includes the following steps:

[0039] Step S71: grinding: grinding the surface of the wallboard with an electric grinder, then cleaning it with a chemical cleaning agent, and drying it at 30° C. for 1 hour;

[0040] Step S72: coating: spray epoxy resin coating on the surface of the wallboard and dry it at 40°C for 1.5 hours to form a protective film with a thickness of 2-3 mm on the surface of the wallboard.

[0041] Preferably, the step S8 further comprises the following steps:

[0042] Step S81: Compression test: Take a 25cm*25cm wallboard as a sample, place the sample in the center of the pressure plate, and load it perpendicularly to the pressure surface at a speed of 4kN / s until the sample is destroyed. Record the maximum failure load pressure and calculate the compressive strength.

[0043] Step S82: Temperature adjustment test: Cut a wall panel of 25cm*25cm size as a sample, use a constant temperature and humidity environment box to simulate different temperature and humidity conditions, and use a thermal conductivity meter to test the thermal conductivity of the sample to obtain the heat transfer coefficient.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. The paraffin microcapsule phase change material of the present invention can store a large amount of thermal energy in the wallboard to realize the temperature regulation function, so that the prepared construction waste recycled wallboard has excellent temperature regulation function, improves the thermal efficiency of the wallboard, and enables the building to maintain the indoor temperature more effectively in the cold and warm seasons. Through effective temperature regulation, it reduces the dependence on traditional energy and reduces the energy consumption of the building. The wallboard helps smooth the indoor temperature fluctuations by absorbing and releasing heat, providing a more comfortable living environment.

[0046] 2. The present invention uses fully automatic construction waste classification and sorting equipment to efficiently sort construction waste from different sources according to different types, thereby improving the classification efficiency, and selects the sorted waste foam plastics, waste glass, waste bricks and tiles and waste concrete as raw materials for producing wall panels, and then uses hydraulic flotation equipment to remove soil, fine powder and other light materials therein to ensure the cleanliness and purity of the aggregate, so as to improve the quality uniformity of the raw materials and avoid affecting the final performance of the recycled wall panels due to large fluctuations in the quality of the raw materials.

[0047] 3. The present invention adopts a multi-stage crushing, separation and screening process, which improves the efficiency of crushing large building materials into the required particle size, ensures that the particle size of the raw materials after crushing is uniform, reduces the impurity content in the aggregate, avoids the quality and performance of the final wallboard being affected by the uneven quality of the raw materials, and sends the aggregate particles with a particle size greater than 1.5 mm to the crusher for secondary crushing to improve the utilization rate of the raw materials.

[0048] 4. The present invention makes the surface of the wallboard more flat and smooth by grinding, which is conducive to the uniform coating of the coating. The cleaning is to remove dust, oil and other impurities on the surface to ensure good adhesion between the subsequent coating and the wallboard surface. Then, epoxy resin coating is sprayed on the surface of the wallboard to form a protective film with a thickness of 2-3mm. The surface treatment helps to improve the waterproof and moisture-proof properties and chemical corrosion resistance of the wallboard, thereby effectively extending the service life of the wallboard. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] The present invention provides a construction waste recycled wallboard with a temperature regulating function and a preparation method thereof. The preparation method of the construction waste recycled wallboard with a temperature regulating function is as follows:

[0051] Step S1: Raw material processing: Use fully automatic construction waste classification and sorting equipment to classify construction waste, and select waste foam plastics, waste glass, waste bricks and tiles, and waste concrete from them, then use hydraulic flotation equipment to remove soil and fine powder from the waste glass, waste bricks and tiles, and waste concrete, and then use drying equipment to dry them at a temperature of 80-90°C for 30-45 minutes to quickly dry the moisture on the waste glass, waste bricks and tiles, and waste concrete;

[0052] Step S2: Crushing and screening: firstly, the selected waste foam plastics, waste glass, waste bricks and tiles and waste concrete are respectively subjected to primary crushing treatment by a crusher, and then the waste steel is recovered from the crushed waste concrete by a magnetic separator, and then the waste bricks and tiles, waste foam plastics, waste glass and the separated waste concrete are further subjected to secondary crushing treatment by a crusher to obtain waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles, and then the paper and plastic in the waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles are removed by a wind separator, and then the separated waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles are screened by a screening device to remove aggregate particles with a particle size outside 1-1.5 mm, and aggregate particles larger than 1.5 mm are sent back to the crusher for secondary crushing treatment;

[0053] Step S3: cleaning and purification: the waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles are respectively placed in a cleaning tank for cleaning after screening to remove dust and impurities on the surface of the aggregate particles, and then the washed aggregate particles are dried at a temperature of 80° C. for 30 minutes;

[0054] Step S4: Mixing and stirring: firstly, the treated waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixture are added into a mixer, and stirred for 25-30 minutes at a stirring speed of 1.5-1.6 r / s, then fly ash and stone powder are added, and the stirring is continued for 10 minutes at a stirring speed of 1.5 r / s, and then paraffin microcapsules are added into the mixture, and stirred for 15 minutes at a stirring speed of 1.5 r / s, wherein the mass ratio of waste foam plastic, waste glass, waste brick and tile, waste concrete, cement, fly ash, stone powder, water, admixture and paraffin microcapsule is 14: (13-18): (11-19): (16-27): (15-22): (9-15): (5-13): (16-33): (0.5-8.5): (1-9);

[0055] Step S5: extrusion molding: using an extruder to extrude the mixed materials to form a 20 mm thick construction waste recycled wallboard;

[0056] Step S6: curing and curing: placing the wallboard formed in step S6 in a constant temperature and humidity environment with a temperature of 22° C. and a humidity of 65% for curing and curing;

[0057] Step S7: Surface treatment: Use an electric grinder to grind the surface of the wallboard, then clean it with a chemical cleaner and dry it at 30°C for 1 hour, then spray epoxy resin paint on the surface of the wallboard and dry it at 40°C for 1.5 hours to form a protective film with a thickness of 2-3 mm on the surface of the wallboard.

[0058] Furthermore, the fully automatic construction waste classification and sorting equipment uses machine vision, artificial intelligence recognition technology and high-speed gripping of manipulators to achieve waste classification, and efficiently sorts construction waste from different sources according to different types, mainly into waste concrete, waste bricks and tiles, waste mortar, waste steel bars, waste wood, waste foam plastics, waste glass, etc. The sorted waste foam plastics, waste glass, waste bricks and tiles and waste concrete are selected as raw materials for producing wall panels, and then the selected waste glass, waste bricks and tiles and waste concrete are processed separately by hydraulic flotation equipment to remove soil, micro powder and other light materials therein to ensure the cleanliness and purity of the aggregates, and then the aggregates are thoroughly dried by a dryer to ensure that their moisture content meets the requirements of recycled wallboard raw materials. The construction waste classification process is optimized through mechanization and automation technology, and the classification efficiency is improved. At the same time, the impurities in the raw materials are removed by preliminary processing of the raw materials to improve the quality uniformity of the raw materials and avoid the influence of large fluctuations in the quality of the raw materials on the final performance of the recycled wallboards.

[0059] The large pieces of waste concrete, waste bricks and tiles, waste glass and waste foam plastics are crushed in turn by crushers to make them into smaller aggregate blocks. Then, the scrap steel is recovered from the smaller aggregate blocks by magnetic separators to ensure the quality of the aggregates. The crushers are then used to further crush the initially crushed waste bricks and tiles, waste foam plastics, waste glass and separated waste concrete to ensure that their particle size distribution meets production requirements. Sorting operations are required before screening. Light materials such as paper and plastic are separated from heavy materials such as waste concrete particles, waste glass particles and waste brick and tile particles by wind separators. The crushed waste bricks and tiles are then sorted in turn by screening equipment. The particles, waste foam plastic particles, waste glass particles and waste concrete particles are screened, and each type of construction waste particles is divided into coarse aggregate and fine aggregate, and particles that do not meet the particle size are removed to ensure that the quality of the aggregate after screening meets the requirements of recycling, and the aggregate particles with a particle size greater than 1.5mm are sent to the crusher for secondary crushing to improve the utilization rate of raw materials. The multi-stage crushing, separation and screening process is adopted to improve the efficiency of crushing large pieces of building materials into the required particle size, ensure the uniform particle size of the raw materials after crushing, reduce the impurity content in the aggregate, and avoid the quality and performance of the final wallboard being affected by the uneven quality of raw materials;

[0060] The crushed aggregate is cleaned to remove dust and impurities on the surface and improve the quality of the aggregate. First, waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixtures are added to a mixer for stirring and mixing, and then fly ash and stone powder are added and continued to be stirred and mixed. Finally, paraffin microcapsules are added and mixed evenly to obtain spare materials, and then the materials are extruded and formed by an extruder to form construction waste recycled wallboards with a thickness of 20 mm. Waste concrete particles have certain strength and durability. Waste brick and tile particles are used as lightweight aggregates for recycled wallboards, which helps to improve the thermal insulation performance of wallboards. Waste glass particles and waste foam plastic particles help to change the density and porosity of the wall, thereby affecting the structural strength and durability of the wallboard. In addition, the heat reflection characteristics of waste glass particles are used to reduce the surface temperature of the wallboard. The fine particles of fly ash can fill the aggregate. The gaps between the materials can improve the compressive strength of the wallboard. Stone powder can adjust the consistency and fluidity of the material, making the material more suitable for molding and pouring, ensuring that the quality of the wallboard is more stable. The phase change material is microencapsulated and added to the recycled material. The temperature is adjusted by using the characteristics of heat absorption or heat release at different temperatures to improve the thermal efficiency of the wallboard, so that the building can more effectively maintain the indoor temperature in cold and warm seasons. Paraffin has a high latent heat density and a suitable phase change temperature. The paraffin microcapsule phase change material prepared by emulsification and interfacial polymerization can store a large amount of heat energy in the wallboard to achieve the temperature adjustment function. The construction waste recycled wallboard prepared according to the addition ratio and addition order has excellent temperature regulation function. Through effective temperature regulation, it reduces dependence on traditional energy and reduces the energy consumption of buildings. The wallboard helps smooth indoor temperature fluctuations by absorbing and releasing heat, providing a more comfortable living environment.

[0061] Through curing and curing in a constant temperature and humidity environment, the hardening process and final performance of the wallboard are optimized, so that the formed wallboard can reach the expected strength. Before spraying, the surface of the wallboard is treated, including two steps of grinding and cleaning. Grinding makes the surface of the wallboard smoother and smoother, which is conducive to the uniform coating of the coating. Cleaning is to remove dust, oil and other impurities on the surface to ensure good adhesion between the subsequent coating and the surface of the wallboard. Then, epoxy resin coating is sprayed on the surface of the wallboard to form a protective film with a thickness of 2-3mm, which helps to improve the waterproof and moisture-proof performance and chemical corrosion resistance of the wallboard, thereby effectively extending the service life of the wallboard. Finally, the wallboard is quality tested, and the thermal insulation test is carried out according to GB / T29043-2012 "Classification and Test Method Evaluation of Thermal Insulation Performance of Building Curtain Walls";

[0062] The value in step S4 is changed, and steps S1-3 and S5-7 are performed, and the compression resistance and temperature regulation performance of the prepared wallboard are tested.

[0063] Embodiment 1:

[0064] Step S4: mixing and stirring: first add the treated waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixtures into a mixer, and stir for 25 minutes at a stirring speed of 1.5 r / s, then add fly ash and stone powder, and continue stirring for 10 minutes at a stirring speed of 1.5 r / s, then add paraffin microcapsules to the mixture, and stir for 15 minutes at a stirring speed of 1.5 r / s, wherein the mass ratio of waste foam plastic, waste glass, waste brick and tile, waste concrete, cement, fly ash, stone powder, water, admixture and paraffin microcapsules is 14:15:13:22:19:13:9:17:1.5:3.

[0065] Furthermore, the compressive strength was 15.6 MPa, the heat transfer coefficient was 0.192 W / (m·k), and the comprehensive evaluation showed that the temperature regulation performance was excellent.

[0066] Embodiment 2:

[0067] Step S4: mixing and stirring: first add the treated waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixtures into a mixer, and stir for 25 minutes at a stirring speed of 1.5 r / s, then add fly ash and stone powder, and continue stirring for 10 minutes at a stirring speed of 1.5 r / s, then add paraffin microcapsules to the mixture, and stir for 15 minutes at a stirring speed of 1.5 r / s, wherein the mass ratio of waste foam plastic, waste glass, waste brick and tile, waste concrete, cement, fly ash, stone powder, water, admixture and paraffin microcapsules is 14:15:14:22:19:14:9:17:1.5:5.

[0068] Furthermore, the compressive strength was 16.3 MPa, the heat transfer coefficient was 0.183 W / (m·k), and the comprehensive evaluation showed that the temperature regulation performance was excellent.

[0069] Embodiment three:

[0070] Step S4: mixing and stirring: first add the treated waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixtures into a mixer, and stir for 25 minutes at a stirring speed of 1.5 r / s, then add fly ash and stone powder, and continue stirring for 10 minutes at a stirring speed of 1.5 r / s, then add paraffin microcapsules to the mixture, and stir for 15 minutes at a stirring speed of 1.5 r / s, wherein the mass ratio of waste foam plastic, waste glass, waste brick and tile, waste concrete, cement, fly ash, stone powder, water, admixture and paraffin microcapsules is 14:15:15:24:19:13:9:18:1.5:7.

[0071] Furthermore, the compressive strength was 16.9 MPa, the heat transfer coefficient was 0.179 W / (m·k), and the comprehensive evaluation showed that the temperature regulation performance was excellent.

[0072] Comparative Example:

[0073] The existing recycled environmentally friendly bricks are used as a comparative example, wherein the compressive strength is 16MPa, the heat transfer coefficient is 0.34W / (m·k), and the comprehensive evaluation of the temperature regulation performance is average.

[0074] The results of nutritional and sensory tests on the temperature-regulating construction waste recycled wallboard are as follows:

[0075]

[0076] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A construction waste recycled wallboard with temperature regulation function, characterized in that: The raw materials include: waste foam plastics, waste glass, waste bricks and tiles, waste concrete, cement, fly ash, stone powder, water, admixtures, paraffin microcapsules and epoxy resin coatings; Waste foam plastics, waste glass, waste bricks and tiles, waste concrete, cement, fly ash, stone powder, water, admixtures and paraffin microcapsules are mixed and extruded in a mass ratio of 14: (13-18): (11-19): (16-27): (15-22): (9-15): (5-13): (16-33): (0.5-8.5): (1-9) to obtain a 20 mm thick construction waste recycled wallboard, which has better temperature regulation performance than the existing construction waste recycled wallboard.

2. The construction waste recycled wallboard with temperature regulation function according to claim 1, characterized in that: Epoxy resin coating is sprayed on the surface of the prepared construction waste recycled wall to form a protective film with a thickness of 2-3 mm.

3. The construction waste recycled wallboard with temperature regulation function according to claim 1, characterized in that: The admixture is a mixture of polycarboxylate water reducer, gypsum retarder and sodium carboxymethyl cellulose in a mass ratio of .

4. A method for preparing a construction waste recycled wallboard with a temperature regulating function, applicable to the construction waste recycled wallboard with a temperature regulating function as claimed in claim 1, characterized in that: The preparation method of the building waste recycled wallboard with temperature regulation function is as follows: Step S1: Raw material processing: Classify the construction waste with complex sources, select the usable parts, and pre-process them; Step S2: Crushing and screening: The usable construction waste selected in step S1 is subjected to multi-stage crushing treatment, and aggregate particles with qualified particle sizes are screened out; Step S3: cleaning and purification: cleaning the aggregate particles screened in step S2 and drying them for later use; Step S4: Mixing and stirring: adding waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, fly ash, stone powder, water, admixtures and paraffin microcapsules into a mixer in sequence and mixing them evenly; Step S5: extrusion molding: using an extruder to extrude the mixed materials to form a 20 mm thick construction waste recycled wallboard; Step S6: curing and curing: placing the wallboard formed in step S6 in a constant temperature and humidity environment with a temperature of 22° C. and a humidity of 65% for curing and curing; Step S7: Surface treatment: Then, the construction waste recycled wallboard solidified in step S6 is subjected to surface treatment to form a protective film; Step S8: Quality testing: testing the compressive strength and temperature regulation performance of the prepared construction waste recycled wallboard.

5. The method for preparing a construction waste recycled wallboard with temperature regulation function according to claim 4, characterized in that: The step S1 further includes the following steps: Step S11: Classification: Use fully automatic construction waste classification and sorting equipment to classify the construction waste and select waste foam plastics, waste glass, waste bricks and tiles, and waste concrete; Step S12: flotation treatment: using hydraulic flotation equipment to treat the waste glass, waste bricks and tiles and waste concrete selected in step S11 respectively, and removing dirt and fine powder from the waste glass, waste bricks and tiles and waste concrete; Step S13: Drying: Use drying equipment to quickly remove moisture from the waste glass, waste bricks and tiles and waste concrete after flotation treatment, wherein the drying temperature is 80-90° C. and the drying time is 30-45 minutes.

6. The method for preparing a construction waste recycled wallboard with temperature regulation function according to claim 4, characterized in that: The step S2 further includes the following steps: Step S21: primary crushing: using a crusher to perform preliminary crushing treatment on the selected waste foam plastics, waste glass, waste bricks and tiles, and waste concrete; Step S22: Magnetic separation: using a magnetic separator to recover scrap steel from the scrap concrete crushed in step S21; Step S23: Secondary crushing: using a crusher to further crush the waste bricks and tiles, waste foam plastics, waste glass that have undergone primary crushing and the waste concrete separated in step S22 to obtain waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles; Step S24: wind separation: separating paper and plastic from the waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles obtained in step S23 by a wind separator; Step S25: Screening treatment: Use screening equipment to screen the waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles separated in step S24, remove aggregate particles with a particle size outside 1-1.5 mm, and send aggregate particles larger than 1.5 mm back to step S23 for secondary crushing again.

7. The method for preparing a construction waste recycled wallboard with temperature regulation function according to claim 4, characterized in that: The step S3 further includes the following steps: Step S31: water washing treatment: placing the screened waste brick and tile particles, waste foam plastic particles, waste glass particles and waste concrete particles into a washing tank for washing to remove dust and impurities on the surface of the aggregate particles; Step S32: Drying treatment: Dry the washed aggregate particles at a temperature of 80° C. for 30 minutes.

8. The method for preparing a construction waste recycled wallboard with temperature regulation function according to claim 4, characterized in that: The step S4 further includes the following steps: Step S41: Mixing raw materials: first add the processed waste brick and tile particles, waste foam plastic particles, waste glass particles, waste concrete particles, cement, water and admixtures into a mixer, stir for 25-30 minutes at a stirring speed of 1.5-1.6 r / s, then add fly ash and stone powder, and continue stirring for 10 minutes at a stirring speed of 1.5 r / s; Step S42: Performance adjustment: Add paraffin microcapsules to the mixed material in step S41 and stir for 15 minutes at a stirring speed of 1.5 r / s.

9. The method for preparing a construction waste recycled wallboard with temperature regulation function according to claim 4, characterized in that: The step S7 further includes the following steps: Step S71: grinding: grinding the surface of the wallboard with an electric grinder, then cleaning it with a chemical cleaning agent, and drying it at 30° C. for 1 hour; Step S72: Coating: Spray the epoxy resin coating on the surface of the wallboard and dry it at 40℃ for 1.5h to form a protective film with a thickness of 2-3mm on the surface of the wallboard.

10. The method for preparing a construction waste recycled wallboard with temperature regulation function according to claim 4, characterized in that: The step S8 further comprises the following steps: Step S81: Compression test: Take a 25cm*25cm wallboard as a sample, place the sample in the center of the pressure plate, and load it perpendicularly to the pressure surface at a speed of 4kN / s until the sample is destroyed. Record the maximum failure load pressure and calculate the compressive strength. Step S82: Temperature adjustment test: Cut a wall panel of 25cm*25cm size as a sample, use a constant temperature and humidity environment box to simulate different temperature and humidity conditions, and use a thermal conductivity meter to test the thermal conductivity of the sample to obtain the heat transfer coefficient.

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