Method and production system for synergistically preparing light building material product from multi-source solid waste

Abstract

The invention discloses a light building material product production system which comprises a mixing treatment production line, a building material forming production line, a goods shelf logistics area, a building material packaging production line, a steam curing chamber and a fine processing line, the mixing treatment production line comprises a batching stirrer, and the building material forming production line comprises a vacuum extrusion device. A belt conveying line is connected and installed between the material mixing treatment production line and the building material forming production line, a first building material conveying belt is installed on the rear channel of the vacuum extrusion device, and the first building material conveying belt and the building material packaging production line are in butt joint with a goods shelf logistics area. The light building material production system is reasonable in layout, a large number of automatic and intelligent devices are used in a production line to cooperate with production, the light building material production system has the advantages of low labor, high efficiency and automatic production, solid waste garbage of various different sources is used as a building material source, the solid waste resource comprehensive utilization approach is expanded, and the production cost is reduced. And a new thought and a new breakthrough are brought to solid waste resource utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of resource utilization of construction waste, and more specifically, to a method and production system for collaboratively preparing lightweight building material products from multi-source solid waste. Background Art

[0002] Solid waste is a general term for solid waste. Commonly used solid wastes include construction waste, coal slag, slag, etc. The resource recycling of solid waste has always been a difficult problem. Currently, there are relatively few means of comprehensive resource utilization of solid waste, and most of them are single treatment and utilization (that is, using one solid waste product for reuse). As a resource and environmental protection utilization enterprise, the development and design of multi-source solid waste comprehensive utilization methods is the focus of the research project. This will bring new ideas to the resource utilization of solid waste and improve the resource utilization rate of solid waste. In order to solve the problem of difficulty in hiring enterprises, in the process of resource treatment of solid waste, the design of automated and intelligent processing production lines is also a key point that enterprises need to consider. This case was born from this. Summary of the Invention

[0003] The purpose of the present invention is to solve the needs of the above-mentioned prior art and provide a method and production system for the coordinated preparation of lightweight building materials products from multi-source solid waste. The present invention produces lightweight building materials through a series of process steps such as raw material processing, feed compounding, kneading, conveying, extrusion, curing, and packaging. The raw materials of lightweight building materials use solid waste garbage from a variety of different sources. The present invention expands the comprehensive utilization of solid waste resources and brings new ideas and new breakthroughs to the resource utilization of solid waste.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for collaboratively preparing lightweight building material products from multi-source solid wastes comprises the following steps:

[0006] (a) Raw material processing: Construction waste raw materials are first pre-processed in the storage yard. The pre-treated raw materials are then screened to remove organic materials. The coarse and hard aggregates are then crushed to form fine aggregates. The fine aggregates are first dried and then visually sorted. Finally, the fine aggregates are collected and ready for use as raw materials.

[0007] (b) batching, wherein the fine aggregate collected in step (a) is transported to a lightweight building material production system, first entering a mixing production line, where the fine aggregate is fed into a batching mixer as one of the raw materials, and is mixed with other raw materials and various additives while being stirred to produce a mixed raw material for making lightweight building materials;

[0008] (c) The mixed raw materials prepared by the batching mixer are transported by a belt conveyor line, and a first kneading machine and a second kneading machine are respectively provided at the front end and the middle end of the conveyor to knead the materials, and the mixed raw materials are transported to the building material forming production line by the belt conveyor line;

[0009] (d) The mixed raw materials are first delivered in a quantitative distribution pattern through a material feeding device of the building material forming production line. The mixed raw materials are then delivered to a vacuum extruder. After vacuum mixing, the mixed raw materials are extruded at an extrusion port. A cutting device installed at the extrusion port cuts the extruded materials into predetermined lengths to form preformed building materials. The preformed building materials are then delivered to a shelf logistics area via a first building material transport belt.

[0010] (e) The raw building materials are loaded into the shelves in the shelf logistics area, and the shelves are transported to the steam curing room by the AGV handling robot for stacking. The steam curing room starts steam curing after the stacking is full;

[0011] (f) After curing in the steam curing room, the AGV transport robot has two transport routes to determine based on the work order requirements. Building materials that do not require fine processing are transported back to the shelf logistics area by the AGV transport robot to connect to the building materials packaging production line. Building materials that require fine processing are transported to the fine processing line by the AGV transport robot. After fine processing, the AGV transport robot transports them to the shelf logistics area and also connects to the building materials packaging production line.

[0012] (g) The building materials are transported forward through the second building material transport belt in the building material packaging production line, first pass through the coating operation room to complete the end face coating operation, and then enter the stacking robot position to form a stacking effect of multiple building material products. The stacked building material products flow to the strapping and packaging equipment, and the strapping and packaging equipment is used to strap and fix the two ends of the building material products. The bundled building material products flow to the stacking robot for stacking. The stacked building material products are transported to the yard by the handling equipment for classification and placement.

[0013] Furthermore, the yard pretreatment in step (a) refers to the separation of large pieces of stone and mud in the construction waste, preliminary drying, sorting of debris, turning and drying, deodorization and other operations. The raw material screening in step (a) refers to screening out inorganic materials and organic materials. The coarse and hard aggregate in step (a) needs to be crushed to a particle size of 10-2mm. The drying of the fine aggregate in step (a) needs to make the moisture content of the aggregate less than 7%. The visual sorting in step (a) is used to pick out residual garbage of the aggregate.

[0014] Furthermore, in step (b), the raw material ratio of lightweight building materials is 30-50% of construction waste, 5-10% of slag, 5-10% of furnace slag, 10-15% of quartz sand, 3-8% of fly ash, 4-10% of waste paper pulp, 3-5% of desulfurized gypsum, 8-10% of inorganic gel material, 8-10% of fly ash detoxification ash, 3-5% of biomass fiber, and 3-5% of additives, wherein the additives include water reducer, early strength agent, retarder, and curing agent.

[0015] Furthermore, the steam curing chamber in step (f) is provided with two sections, the first section is normal pressure steam curing, temperature: 60 ℃ -80 ℃, pressure: close to atmospheric pressure (normal pressure), constant temperature time: 8-12 hours, the second section is high pressure steam curing, temperature: 170 ℃ -200 ℃, pressure: 0.8 MPa-1.5 MPa, constant temperature and pressure time: 3-6 hours, after the curing is completed, a slow pressure reduction and cooling process is carried out, which lasts 40 minutes to 1 hour.

[0016] A lightweight building material product production system is applied to a method for collaboratively preparing lightweight building material products from multi-source solid waste, comprising a mixing processing production line, a building material forming production line, a shelf logistics area, a building material packaging production line, a steam curing room and a fine processing line. The mixing processing production line comprises a batching agitator, the building material forming production line comprises a vacuum extrusion device, a belt conveyor line is connected and installed between the mixing processing production line and the building material forming production line, a first building material transport transmission belt is installed after the vacuum extrusion device, the first building material transport transmission belt is connected to the shelf logistics area, the building material packaging production line is also connected to the shelf logistics area, the steam curing room is arranged parallel to the building material packaging production line, and the fine processing line is arranged and installed on the upper layer of the steam curing room.

[0017] Furthermore, a raw material conveyor is installed at the inlet end of the batching mixer, several additive storage tanks are connected to the side of the batching mixer, a mixture output belt is installed at the outlet end of the batching mixer, and two first kneading machines arranged in parallel are installed at the outlet of the mixture output belt, and the two first kneading machines are connected to the starting end of the belt conveyor line.

[0018] Furthermore, a second kneading machine is installed in the middle section of the belt conveyor line, a cloth input device is installed at the inlet end of the vacuum extrusion device, the end of the belt conveyor line is connected to the cloth input device, the starting end of the first building material transport transmission belt is connected to the extrusion port of the vacuum extrusion device, and the extrusion port of the vacuum extrusion device is installed with a cutting device.

[0019] Furthermore, the shelf logistics area includes a blank splicing station and a packaging and paralleling station. The blank splicing station is connected to the end of the first building material transport conveyor belt. The building material packaging production line includes a second building material transport conveyor belt with a transmission installation. The packaging and paralleling station is connected to the starting end of the second building material transport conveyor belt. The shelf logistics area is provided with a number of shelves and AGV transport robots. The AGV transport robots are used to transport shelves one by one. The empty shelves move along the packaging and paralleling station to the blank splicing station, and the fully loaded shelves are transported from the blank splicing station to the steam curing room. The steam curing room adopts a tunnel design. The exit end of the steam curing room is provided with a route judgment station. A lift capable of carrying shelves and AGV transport robots is installed on the side of the route judgment station. The lift moves to connect to the second floor where the fine processing line is located.

[0020] Furthermore, the route judgment station is provided with two transport routes, the first transport route is from the route judgment station back to the packaging and paralleling station, and the second transport route is from the route judgment station to the fine processing line and then back to the packaging and paralleling station.

[0021] Furthermore, a coating operation room, a stacking robot, a bundling and packaging device, and a palletizing robot are sequentially installed along the transmission direction of the second building material transport belt.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention produces lightweight building materials through a series of process steps such as raw material processing, feed compounding, kneading, conveying, extrusion, curing, and packaging. The raw materials of lightweight building materials use solid waste garbage from a variety of different sources. The present invention expands the comprehensive utilization of solid waste resources, brings new ideas and new breakthroughs to the resource utilization of solid waste, improves the resource utilization rate of solid waste, and has positive environmental benefits.

[0024] 2. The lightweight building material production system of the present invention has a reasonable layout, and the production line uses a large amount of automated and intelligent equipment to cooperate with production, which has the advantages of low labor, high efficiency and automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a process flow chart of a method for collaboratively preparing lightweight building material products from multi-source solid wastes in this embodiment;

[0026] Figure 2 This is a production line layout diagram of a lightweight building material production system in this embodiment;

[0027] Figure 3 This is an enlarged layout diagram of the mixing processing production line in this embodiment;

[0028] Figure 4This is an enlarged layout diagram of the building material forming production line in this embodiment;

[0029] Figure 5 This is an enlarged layout diagram of the shelf logistics area in this embodiment;

[0030] Figure 6 This is an enlarged layout diagram of the building materials packaging production line in this embodiment;

[0031] Figure 7 This is an enlarged layout diagram of the steam curing room in this embodiment.

[0032] Figure numerals: mixing processing production line 1, ingredient mixer 11, raw material conveyor 111, additive storage tank 112, mixture output belt 12, first kneading machine 13, building material forming production line 2, cloth input device 21, vacuum extrusion device 22, cutting equipment 221, first building material transport transmission belt 23, belt conveyor line 3, second kneading machine 31, shelf logistics area 4, blank connection station 41, packaging and paralleling station 42, shelf 43, AGV handling robot 44, building material packaging production line 5, second building material transport transmission belt 51, painting operation room 52, stacking robot 53, strapping and packaging equipment 54, palletizing robot 55, steam curing room 6, route judgment station 61, elevator 62, fine processing line 7. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0034] A method for collaboratively preparing lightweight building material products from multi-source solid wastes comprises the following steps:

[0035] (a) Raw material processing. Due to the complex composition of construction waste, the processing of solid waste raw materials mainly refers to the processing of construction waste. First, the construction waste raw materials are pre-processed in the yard. The yard pre-processing refers to the separation of large blocks of stone and mud in the construction waste, preliminary drying, sorting of debris, turning over and drying, deodorization and other operations. The pre-treated raw materials are screened. There are organic materials and inorganic materials in construction waste. Only inorganic materials can be used for building material production. Therefore, raw material screening is required to remove organic materials in construction waste. The construction waste after screening is called coarse hard aggregate. These coarse hard aggregates cannot be used directly as raw materials. The coarse hard aggregates need to be crushed Processing, crushing and then forming fine aggregate. Coarse and hard aggregate needs to undergo three-stage crushing to gradually break it into a particle size of 10-2mm. The produced fine aggregate is first dried and then visually sorted. The drying of fine aggregate requires that the moisture content of the aggregate is less than 7%. The visual sorting in step (a) is used to sort out residual garbage in the aggregate. Residual garbage refers to debris such as plastic fragments mixed in the aggregate. With the cooperation of visual equipment, a robot arm automatically removes it. Finally, the fine aggregate is concentrated and waits to be used as raw material. For solid waste such as slag and slag, since the composition is not complex, it generally only needs to be crushed and visually sorted before it can be used as raw material;

[0036] (b) batching, transporting the fine aggregate collected in step (a) to the lightweight building material production system, such as Figure 2-Figure 7 As shown, a lightweight building material production system includes a mixing processing production line 1, a building material forming production line 2, a shelf logistics area 4, a building material packaging production line 5, a steam curing room 6 and a fine processing line 7. The raw materials first enter the mixing processing production line 1, as shown in FIG. Figure 3As shown, the mixing production line 1 includes a batching mixer 11. The batching mixer 11 is a tank-shaped mixing drum device with a mixing mechanism installed inside. Fine aggregate is put into the batching mixer 11 as one of the raw materials. While stirring, various other raw materials and various additives are added for blending and processing to produce mixed raw materials for making lightweight building materials. The raw material ratio of lightweight building materials is 30-50% construction waste, 5-10% slag, 5-10% slag, 10-15% quartz sand, 3-8% fly ash, 4-10% waste paper pulp, 3-5% desulfurized gypsum, 8-10% inorganic gel material, 8-10% fly ash detoxification ash, 3-5% biomass fiber, and 3-5% additives. The inlet end of the batching mixer 11 is installed There is a raw material conveyor 111, which adopts a belt-type lifting equipment. Solid waste and other raw materials are put into the batching mixer 11 through the raw material conveyor 111. Several additive storage tanks 112 are connected to the side of the batching mixer 11. The additive storage tanks 112 are connected to the batching mixer 11 to provide additives for preparing mixed raw materials. The types of additives include water reducers, early strength agents, retarders, curing agents, etc. The stirring action of the batching mixer 11 can homogenize and mix the materials. The additives are used to chemically treat the materials, forming coupling, decomposition, degradation and other effects to meet the quality standards of building materials. The present invention can prepare mixed raw materials for making lightweight building materials through the batching mixer 11;

[0037] (c) Figure 3 As shown, a mixture output belt 12 is installed at the outlet end of the batching mixer 11, and the mixed raw materials configured by the batching mixer 11 are conveyed out by the mixture output belt 12. The mixture output belt 12 is connected to the belt conveyor line 3, and finally the mixed raw materials need to be transported to the building material forming production line 2 through the belt conveyor line 3. The present invention installs two first kneading machines 13 arranged in parallel at the outlet of the mixture output belt 12. The outlet of the mixture output belt 12 is forked, and the raw materials are respectively connected to the two first kneading machines 13. The two first kneading machines 13 are connected to the belt conveyor line 3. The first kneading machine 13 plays the first kneading effect before the mixture is output. Kneading can make the material fully homogenized to improve the gel adhesion and mixing uniformity. A second kneading machine 31 is installed in the middle section of the belt conveyor line 3. Due to the limited space in the workshop, the length of the belt conveyor line 3 is relatively long. The provision of the second kneading machine 31 can ensure the gel adhesion and mixing uniformity of the output material.

[0038] (d) Figure 4As shown, the building material forming production line 2 includes a vacuum extrusion device 22, and a material input device 21 is installed at the inlet end of the vacuum extrusion device 22. The end of the belt conveyor line 3 is connected to the material input device 21. The mixed building material raw materials input by the belt conveyor line 3 first enter the material input device 21. The material input device 21 is a quantitative material setting. A certain amount of raw materials are arranged each time to be put into the vacuum extrusion device 22, which is similar to a partition conveyor in a fixed space. The mixed raw materials are quantitatively transported into the vacuum extrusion device 22, and then extruded at the extrusion port after vacuum stirring operation. The extrusion port of the vacuum extrusion device 22 is installed with a cutting device 221. The cutting device 221 installed at the extrusion port is used to cut the extruded material into a fixed length to form a building material blank of suitable specifications. The vacuum extrusion device 22 is equipped with a first building material transport belt 23 at the rear of the vacuum extrusion device 22. The starting end of the first building material transport belt 23 is connected to the extrusion port of the vacuum extrusion device 22. The first building material transport belt 23 receives and drives the output of the building material blank, as shown in FIG. Figure 2 As shown, the first building material transport conveyor belt 23 is connected to the shelf logistics area 4, and the building material blanks are transported to the shelf logistics area 4 through the first building material transport conveyor belt 23;

[0039] (e) Figure 5 As shown, the shelf logistics area 4 includes a blank receiving station 41 and a packaging and paralleling station 42. The blank receiving station 41 is connected to the end of the first building material transport belt 23. The building material packaging production line 5 includes a second building material transport belt 51 installed for transmission. The packaging and paralleling station 42 is connected to the starting end of the second building material transport belt 51. The shelf logistics area 4 is provided with a number of shelves 43 and AGV handling robots 44. The AGV handling robot 44 is an industrial intelligent handling robot that can be purchased on the market. The AGV handling robot 44 is used to carry the shelves 43 one by one. The shelves 43 are first located at the blank receiving station 41. The blanks of building materials enter the shelves 4 at the blank receiving station 41. 3. The shelf 43 is transported to the steam curing room 6 for stacking by the AGV transport robot 44. The steam curing room 6 starts steam curing after it is fully stacked. The steam curing room 6 adopts a tunnel-type entry and exit design. Two working sections are set along the length of the steam curing room 6. The first section is normal-pressure steam curing with a temperature of 60°C-80°C and a pressure close to atmospheric pressure (normal pressure). The constant temperature time is 8-12 hours. The second section is high-pressure steam curing with a temperature of 170°C-200°C and a pressure of 0.8MPa-1.5MPa. The constant temperature and pressure time is 3-6 hours. After the curing is completed, a slow pressure and temperature reduction process is carried out, which lasts 40 minutes to 1 hour.

[0040] (f) Figure 7As shown, a route judgment station 61 is provided at the exit of the steam curing room 6. After curing in the steam curing room 6, the AGV handling robot 44 has two transport directions to be judged according to the work order requirements. Therefore, the route judgment station 61 is provided with two transport routes. The second transport route is from the route judgment station 61 back to the packaging and paralleling station 42. The first transport route is from the route judgment station 61 to the fine processing line 7, and then back to the packaging and paralleling station 42. Building materials that do not require fine processing take the first transport route and are directly transported back to the shelf logistics area 4 by the AGV handling robot 44. Figure 2 and Figure 5 As shown, the building materials are transported back to the shelf logistics area 4 and enter the packaging and line station 42 to transfer the steamed building materials to the building material packaging production line 5. Figure 2 As shown, a lightweight building material production system also includes a fine processing line 7. Due to the limited workshop space, the fine processing line 7 is installed on the upper level of the steam curing room 6. The building materials that need fine processing take the second transportation route and are transported to the fine processing line 7 by the AGV transport robot 44. Figure 7 As shown, a lift 62 capable of carrying shelves 43 and AGV handling robots 44 is installed on the side of the route judgment station 61. The lift 62 moves to connect to the second floor where the fine processing line 7 is located. Building materials that need fine processing first enter the fine processing line 7 after steaming. Fine processing includes a series of tasks such as fine cutting, grinding, and filling with functional materials. After fine processing of the building materials, they are transported to the shelf logistics area 4 by the AGV handling robot 44. The finely processed building materials also enter the packaging and merging station 42 and are also connected to the building material packaging production line 5.

[0041] (g) Figure 6 As shown, a coating operation room 52, a stacking robot 53, a strapping and packaging equipment 54 and a palletizing robot 55 are sequentially installed along the transmission direction of the second building material transport belt 51. The steamed building materials are transported forward through the second building material transport belt 51 in the building material packaging production line 5, and first pass through the coating operation room 52 to complete the end face coating operation. The coating operation room 52 adopts a tunnel-type entry and exit design. The coating operation room 52 is designed with two processes of coating and drying. The end face spraying is carried out first, and then the paint is dried. If the building materials do not need to be painted, they can directly pass through the passage, and then the building materials are put into the painting operation room 52. The building materials enter the stacking robot 53 position, and the stacking robot 53 takes and places the building materials products in turn, so that multiple building materials products are combined to form a stacking effect (depending on the thickness, generally 4-5). The stacked building materials products flow to the strapping and packaging equipment 54, which can move autonomously along the length direction of the second building material transport belt 51. The strapping and packaging equipment 54 straps and fixes the two ends of the building materials products. The bundled building materials products flow to the palletizing robot 55 for palletizing. The stacked building materials products are transported to the yard by the handling equipment for classification and placement.

[0042] like Figure 5 As shown, the shelf logistics area 4 forms a circular logistics use design of the shelf 43. The empty shelf 43 moves along the packaging and paralleling station 42 to the blank connection station 41, and the fully loaded shelf 43 is transported from the blank connection station 41 to the steam curing room 6. Regardless of whether it is finely processed or not, the shelf 43 will eventually be returned to the packaging and paralleling station 42, so that the orderly flow and use of the shelf 43 can be achieved.

[0043] The present invention uses a variety of solid wastes as raw materials to produce lightweight building materials, so it is called multi-source solid waste collaborative preparation. The present invention breaks away from the conventional recycling of single solid waste materials, brings new ideas and new breakthroughs to the resource utilization of solid waste, improves the resource utilization rate of solid waste, and has positive environmental benefits. The lightweight building materials production system of the present invention has a reasonable layout, and the production line uses a large number of automated and intelligent equipment to cooperate with production, with the advantages of low labor, high efficiency and automation.

[0044] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for collaboratively preparing lightweight building material products from multi-source solid waste, characterized in that: The following steps are included: (a) Raw material processing: Construction waste raw materials are first pre-processed in the storage yard. The pre-treated raw materials are then screened to remove organic materials. The coarse and hard aggregates are then crushed to form fine aggregates. The fine aggregates are first dried and then visually sorted. Finally, the fine aggregates are collected and ready for use as raw materials. (b) batching, wherein the fine aggregate finally collected in step (a) is transported to the lightweight building material production system, first entering the mixing processing production line (1), and the fine aggregate is put into the batching mixer (11) as one of the raw materials, and is mixed with other raw materials and various additives while being stirred to produce a mixed raw material for making lightweight building materials; (c) The mixed raw materials prepared by the batching mixer (11) are transported by a belt conveyor line (3), a first kneading machine (13) and a second kneading machine (31) are respectively provided at the front end and the middle end of the conveyor to knead the materials, and the mixed raw materials are transported to the building material forming production line (2) via the belt conveyor line (3); (d) First, the mixed raw materials are quantitatively distributed and transported through the material feeding device (21) of the building material forming production line (2). The mixed raw materials are transported to the vacuum extrusion device (22), and then extruded at the extrusion port after vacuum stirring. The extruded materials are cut to a fixed length by the cutting device (221) installed at the extrusion port to form a building material blank. The building material blank is transported to the shelf logistics area (4) by the first building material transport belt (23); (e) The raw building materials enter the shelf (43) in the shelf logistics area (4), and the shelf (43) is transported to the steam curing room (6) by the AGV transport robot (44) for stacking. The steam curing room (6) starts steam curing after the stacking is full; (f) After the steam curing room (6) is maintained, the AGV transport robot (44) has two transport directions to be determined according to the work order requirements. The building materials that do not require fine processing are transported back to the shelf logistics area (4) by the AGV transport robot (44) to be connected and transferred to the building material packaging production line (5). The building materials that require fine processing are transported to the fine processing line (7) by the AGV transport robot (44). After the fine processing of the building materials, they are transported to the shelf logistics area (4) by the AGV transport robot (44) and also connected and transferred to the building material packaging production line (5); (g) The building materials are transported forward on the building material packaging production line (5) through the second building material transport belt (51), first pass through the coating operation room (52) to complete the end surface coating operation, and then enter the stacking robot (53) position, so that multiple building material products form a stacking effect. The stacked building material products flow to the bundling and packaging equipment (54), and the bundling and packaging equipment (54) bundles and fixes the two ends of the building material products. The bundled building material products flow to the stacking robot (55) for stacking. The stacked building material products are transported to the yard by the handling equipment for classification and placement.

2. The method for collaboratively preparing lightweight building materials from multi-source solid waste according to claim 1, characterized in that: The yard pretreatment in step (a) refers to the separation of large pieces of stone and mud in the construction waste, preliminary drying, sorting of debris, turning and drying, deodorization and other operations. The raw material screening in step (a) refers to screening out inorganic materials and organic materials. The coarse and hard aggregate in step (a) needs to be crushed to a particle size of 10-2mm. The fine aggregate drying in step (a) needs to make the aggregate moisture content less than 7%. The visual sorting in step (a) is used to sort out residual garbage in the aggregate.

3. The method for collaboratively preparing lightweight building materials from multi-source solid waste according to claim 1, characterized in that: The raw material ratio of the lightweight building materials in step (b) is 30-50% of construction waste, 5-10% of slag, 5-10% of furnace slag, 10-15% of quartz sand, 3-8% of fly ash, 4-10% of waste paper pulp, 3-5% of desulfurized gypsum, 8-10% of inorganic gel material, 8-10% of fly ash detoxification slag, 3-5% of biomass fiber, and 3-5% of additives, wherein the additives include a water reducer, an early strength agent, a retarder, and a curing agent.

4. The method for collaboratively preparing lightweight building materials from multi-source solid waste according to claim 1, characterized in that: The steam curing chamber (6) in step (f) is provided with two sections. The first section is normal pressure steam curing, temperature: 60°C-80°C, pressure: close to atmospheric pressure (normal pressure), constant temperature time: 8-12 hours; the second section is high pressure steam curing, temperature: 170°C-200°C, pressure: 0.8MPa-1.5Mpa, constant temperature and pressure time: 3-6 hours. After the curing is completed, a slow pressure and temperature reduction process is carried out, which lasts for 40 minutes to 1 hour.

5. A lightweight building material production system, applied to the method for collaboratively preparing lightweight building material products from multi-source solid wastes as claimed in claim 1, characterized in that: The invention comprises a mixing processing production line (1), a building material forming production line (2), a shelf logistics area (4), a building material packaging production line (5), a steam curing room (6) and a fine processing line (7), wherein the mixing processing production line (1) comprises a batching mixer (11), the building material forming production line (2) comprises a vacuum extrusion device (22), a belt conveyor line (3) is connected and installed between the mixing processing production line (1) and the building material forming production line (2), a first building material transport transmission belt (23) is installed after the vacuum extrusion device (22), the first building material transport transmission belt (23) is connected to the shelf logistics area (4), the building material packaging production line (5) is also connected to the shelf logistics area (4), the steam curing room (6) is arranged in parallel with the building material packaging production line (5), and the fine processing line (7) is arranged and installed on the upper layer of the steam curing room (6).

6. A lightweight building material production system according to claim 5, characterized in that: A raw material conveyor (111) is installed at the inlet end of the batching mixer (11), and a plurality of additive storage tanks (112) are connected to the side of the batching mixer (11). A mixture output belt (12) is installed at the outlet end of the batching mixer (11), and two first kneading machines (13) arranged in parallel are installed at the outlet of the mixture output belt (12), and the two first kneading machines (13) are connected to the starting end of the belt conveyor line (3).

7. A lightweight building material production system according to claim 5, characterized in that: A second kneading machine (31) is installed in the middle section of the belt conveyor line (3), a cloth input device (21) is installed at the inlet end of the vacuum extrusion device (22), the end of the belt conveyor line (3) is connected to the cloth input device (21), the starting end of the first building material transport transmission belt (23) is connected to the extrusion port of the vacuum extrusion device (22), and a cutting device (221) is installed at the extrusion port of the vacuum extrusion device (22).

8. A lightweight building material production system according to claim 5, characterized in that: The shelf logistics area (4) includes a blank joining station (41) and a packaging and paralleling station (42), wherein the blank joining station (41) is connected to the end of the first building material transport transmission belt (23), the building material packaging production line (5) includes a second building material transport transmission belt (51) for transmission installation, and the packaging and paralleling station (42) is connected to the starting end of the second building material transport transmission belt (51), and the shelf logistics area (4) is provided with a plurality of shelves (43) and AGV transport robots (44), wherein the AGV transport robots (44) are used to transport the shelves (43) one by one. The empty shelves (43) move along the packaging and paralleling station (42) to the blank joining station (41), and the fully loaded shelves (43) are transported from the blank joining station (41) to the steam curing room (6). The steam curing room (6) adopts a tunnel design. A route judgment station (61) is provided at the exit end of the steam curing room (6). A lift (62) capable of carrying the shelves (43) and the AGV transport robot (44) is installed on the side of the route judgment station (61). The lift (62) moves to connect to the second floor where the fine processing line (7) is located.

9. A lightweight building material production system according to claim 8, characterized in that: The route judgment station (61) is provided with two transport routes, the first transport route is from the route judgment station (61) back to the packaging and paralleling station (42), and the second transport route is from the route judgment station (61) to the fine processing line (7) and then back to the packaging and paralleling station (42).

10. A lightweight building material production system according to claim 8, characterized in that: A coating operation room (52), a stacking robot (53), a bundling and packaging device (54) and a palletizing robot (55) are sequentially installed along the transmission direction of the second building material transport transmission belt (51).

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