Preparation device and preparation method of building waste regenerated foamed ceramic

By designing the preparation device for regenerated foamed ceramics for building waste, using technologies such as grinding, screening, electromagnetic adsorption and high-temperature pretreatment, environmental pollution and resource waste in building waste treatment have been solved, and efficient recycling and improvement of ceramic performance have been achieved.

CN119704382APending Publication Date: 2025-03-28XINJIANG PROD & CONSTR CORPS CONSTR ENG SCI & TECH RES INST CO LTD +1
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Patent Information

Application Number
CN202411980894.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The treatment of construction waste has problems of environmental pollution and resource waste. It is difficult for existing ceramic preparation technology to effectively utilize construction waste and improve the performance of ceramics.

Method used

A preparation device for regenerated foamed ceramics for construction waste is designed, including grinding the main shell, fine grinding shell, screen casing, initial grinding roller and electromagnetic generator. Through grinding, screening, electromagnetic adsorption and high-temperature pretreatment, impurities are removed and the fire-retardant performance of the ceramics are improved.

Benefits of technology

It realizes efficient recycling and utilization of construction waste, produces fire-resistant, flame-retardant, and high-quality foamed ceramics with high physical texture, reducing environmental pollution and resource waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of foamed ceramic preparation, and discloses a preparation device and a preparation method of building waste regenerated foamed ceramic. According to the device, a fine grinding shell is welded to the outer surface of one side of the lower end of a grinding main shell, a screen sleeve is welded to the inner surface of the fine grinding shell, a fine grinding roller movably sleeves the inner surface of the screen sleeve, and a primary grinding roller is movably connected to the inner surface of the grinding main shell; an electromagnetic generator is fixedly connected to the outer surface of the side, away from the fine grinding shell, of the lower end of the grinding main shell, a nozzle is fixedly connected to the outer surface of the output end of an igniter, and building waste materials are poured from the upper portion of the grinding main shell and are subjected to primary grinding through mutual rolling extrusion of primary grinding rollers; the materials fall into a space defined by a fine grinding shell and a screen sleeve below, a grinding ball is placed in the screen sleeve, the fine grinding roller rotates to drive the grinding ball and the materials to grind, and particles meeting the standard are extruded out by the side, close to a guide-out plate, of the fine grinding shell.
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Description

Technical Field

[0001] The invention belongs to the technical field of foamed ceramic preparation, and specifically relates to a preparation device and a preparation method of foamed ceramic recycled from building waste. Background Art

[0002] Construction waste refers to the abandoned soil, abandoned materials and other solid wastes generated during the construction, reconstruction, expansion or demolition of buildings. These wastes include construction waste generated during construction and old building materials generated during demolition.

[0003] There are many sources of construction waste, including abandoned soil and materials generated by construction units and construction units when they build, renovate, expand and demolish various buildings and structures, as well as waste generated by residents when decorating and renovating their houses. These wastes not only occupy a large amount of land resources, but also may pollute the environment. Therefore, the reasonable treatment of construction waste and reducing its impact on the environment is an important issue facing the current society.

[0004] my country has a long history of ceramic preparation technology. Construction slag, as a basic material, not only realizes the resource utilization of waste, but also enhances the stability and strength of ceramics. The silicon dioxide in waste glass acts as an efficient adhesive, improving the durability and aesthetics of ceramics. Materials such as silicon carbide, manganese dioxide, tricalcium phosphate and sodium humate, as foaming preparation materials, give ceramics a lightweight and porous structure, making them perform well in terms of heat insulation, sound insulation and load-bearing. This preparation technology of recycled foamed ceramics not only effectively reduces environmental pollution, but also provides a green and sustainable development path for the building materials industry. Summary of the invention

[0005] The purpose of the present invention is to provide a device and method for preparing foamed ceramics recycled from construction waste in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the present invention is as follows: a preparation device for recycled foamed ceramics from construction waste, comprising a grinding main shell, a fine grinding shell is welded to the outer surface of one side of the lower end of the grinding main shell, a screen sleeve is welded to the inner surface of the fine grinding shell, a fine grinding roller is movably sleeved on the inner surface of the screen sleeve, a primary grinding roller is movably connected to the inner surface of the grinding main shell, an electromagnetic generator is fixedly connected to the outer surface of the lower end of the grinding main shell away from the fine grinding shell, an igniter is fixedly connected to the outer surface of the grinding main shell above the fine grinding shell, and a nozzle is fixedly connected to the outer surface of the output end of the igniter.

[0007] By adopting the above technical scheme, construction waste materials are poured in from the top of the main grinding shell, and are initially ground by the rolling and squeezing of the primary grinding rollers, and then fall into the space surrounded by the fine grinding shell and the screen sleeve below. Grinding balls are placed inside the screen sleeve, and the rotation of the fine grinding roller drives the grinding balls and materials to grind. Particles that meet the standards are squeezed out of the fine grinding shell near the side of the export plate. After the main grinding shell is poured in, the electromagnetic generator is turned on to generate an electromagnetic field to adsorb metal cast iron, steel, etc. to reduce doping. The igniter is connected to natural gas from the outside. By opening it, the corresponding nozzle sprays flames to heat the materials at the grinding site, and the materials are pre-treated at high temperature to remove insulation materials, high temperature intolerant materials, impurities, etc. in the materials, thereby ensuring the fire retardancy and high quality of the physical texture of the finished foamed ceramic products.

[0008] In a preferred embodiment, a guide plate is welded to the outer surface of one side of the main grinding shell corresponding to the fine grinding shell, and a support column is welded to the lower surface of the main grinding shell.

[0009] By adopting the above technical solution, the export plate facilitates the exported materials to fall onto the loading plate, and the support column facilitates the support of the grinding main shell.

[0010] In a preferred embodiment, a connecting outer frame is welded to the outer surface of the fine grinding shell corresponding to the supporting column, and a high-frequency vibrator is fixedly connected to the outer surface of the connecting outer frame.

[0011] By adopting the above technical solution, the high-frequency vibration machine assists in shaking more violently, driving the vibration of the fine grinding shell and the screen sleeve, which is convenient for grinding and at the same time makes it convenient to drop the attached metal cast iron, steel chips, etc. to the bottom of the fine grinding shell.

[0012] In a preferred embodiment, a braking body is provided on the outer surface of the grinding main shell, and a material pushing shell is fixedly connected to the outer surface of the support column.

[0013] By adopting the above technical solution, the brake body has a built-in motor and a transmission mechanism to facilitate the rolling of the primary grinding roller, and the material pushing shell has a built-in motor to facilitate the rotation of the roller.

[0014] In a preferred embodiment, a roller is movably connected to the outer surface of the material pushing shell, and a support is provided on the outer surface of the material pushing shell.

[0015] By adopting the above technical solution, the rotation of the roller drives the loading plate to move, and the supporting member facilitates the support of the loading plate at the side.

[0016] In a preferred embodiment, the outer surface of the roller is movably connected to a carrier plate, and the outer surface of the carrier plate is movably connected to a connecting sealing plate.

[0017] By adopting the above technical solution, the displacement of the carrier plate drives the material to move, and the connecting sealing plate ensures the space between the carrier plates.

[0018] In a preferred embodiment, a lower mold is disposed on the inner surface of the material pushing shell, and an upper mold is movably connected to the inner surface of the lower mold.

[0019] By adopting the above technical solution, the lower mold and the upper mold are extruded, and high temperature is applied inside to complete the die casting.

[0020] In a preferred embodiment, a lower surface of the lower mold is movably connected to a placement plate, and an upper surface of the placement plate is provided with a movable rail.

[0021] By adopting the above technical solution, the placement plate facilitates the fixed die-casting operation of the lower mold and the upper mold, and the movable rail facilitates the displacement of the lower mold and the upper mold.

[0022] In a preferred embodiment, the outer surface of one side of the lower mold is fixedly connected to a hydraulic press, and the outer surface of the side of the lower mold away from the hydraulic press is provided with a high-temperature heating furnace.

[0023] By adopting the above technical solution, the hydraulic press is extended to press down the upper mold, and the blank is prepared inside the lower mold. The high-temperature heating furnace forms an internal high temperature through heating to complete the corresponding regenerated foamed ceramic preparation.

[0024] A method for preparing building waste recycled foamed ceramics comprises the following steps:

[0025] Step 1. The raw materials for this process are construction slag, waste glass (silicon dioxide), silicon carbide, manganese dioxide, tricalcium phosphate, and sodium humate; construction slag is used as the main material, waste glass (silicon dioxide) is used as a binder, and other materials are used as foaming preparation materials;

[0026] Step 2: Pour the construction waste material from the top of the main grinding shell, and the primary grinding rollers roll and squeeze each other for primary grinding, and then drop it into the space surrounded by the fine grinding shell and the screen sleeve below. Grinding balls are placed inside the screen sleeve. The rotation of the fine grinding roller drives the grinding balls and materials to grind. The particles that meet the standards are squeezed out by the fine grinding shell near the outlet plate.

[0027] Step 3: After the main grinding shell is poured in, turn on the electromagnetic generator to generate an electromagnetic field to adsorb metal cast iron, steel, etc., reduce doping, and use high-frequency vibration to assist in more violent shaking to facilitate grinding. The igniter is connected to natural gas from the outside. By turning it on, the corresponding nozzle sprays flames to heat the material at the grinding site, and pre-treats the material at high temperature to remove the insulation materials, high temperature intolerant materials, impurities, etc. in the material, so as to ensure the fire retardancy and high quality of the physical texture of the finished foamed ceramic product;

[0028] Step 4: The material falls onto the carrier plate and rolls down to the lower mold. Other materials are added to the lower mold for mixing. According to the actual situation, increasing the proportion of waste glass (silicon dioxide) and silicon carbide will increase the hardness, and the corresponding high temperature resistance will decrease. Increasing the proportion of foaming materials will increase the thermal insulation, and the hardness will decrease. In actual applications, the proportion of engineering slag is at least 65% to ensure stable strength.

[0029] Step 5. Use a hydraulic press to press the upper mold down to the lower mold to complete the die casting. After reaching the corresponding extrusion height, push it into the high-temperature heating furnace for high-temperature forging. The interior of the high-temperature heating furnace ensures that the lower mold and the upper mold are in a stable range to ensure the quality of the finished product. After completion, open the doors on both sides of the high-temperature heating furnace to take out the finished product.

[0030] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0031] In the present invention, construction waste materials are poured in from the top of the main grinding shell, and are initially ground by rolling and squeezing the primary grinding rollers against each other, and then fall into the space surrounded by the fine grinding shell and the screen sleeve below. Grinding balls are placed inside the screen sleeve, and the rotation of the fine grinding roller drives the grinding balls and materials to grind. Particles that meet the standards are squeezed out of the fine grinding shell near the side of the export plate. After the main grinding shell is poured in, the electromagnetic generator is turned on to generate an electromagnetic field to adsorb metal cast iron, steel, etc. to reduce doping. The igniter is connected to natural gas from the outside. By opening it, the corresponding nozzle sprays flames to heat the materials at the grinding site, and the materials are pre-treated at high temperature to remove the thermal insulation materials, high temperature intolerant materials, impurities, etc. in the materials, thereby ensuring the fire retardancy and high quality of the physical texture of the finished foamed ceramic product. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view schematic diagram of the overall appearance of the device of the present invention;

[0033] Figure 2 It is a schematic diagram of the reverse side of the overall appearance of the device in the present invention;

[0034] Figure 3 It is a back side view of the overall appearance of the device in the present invention;

[0035] Figure 4 This is a schematic diagram of the grinding and screening structure of the equipment in the present invention;

[0036] Figure 5 This is a disassembled diagram of the grinding structure of the equipment in the present invention;

[0037] Figure 6 It is a schematic diagram of the die-casting structure of the equipment in the present invention;

[0038] Figure 7 This is a schematic diagram of the material conveying structure of the equipment in the present invention;

[0039] Figure 8 It is a schematic diagram of the high temperature preparation structure of the equipment in the present invention.

[0040] Markings in the figure: 1. Grinding main shell; 2. Electromagnetic generator; 3. Fine grinding shell; 4. Screen sleeve; 5. Fine grinding roller; 6. Primary grinding roller; 7. Ignitor; 8. Nozzle; 9. Export plate; 10. Support column; 11. Connecting outer frame; 12. High-frequency vibrator; 13. Braking body; 14. Material pushing shell; 15. Roller; 16. Loading plate; 17. Connecting sealing plate; 18. Support; 19. Lower mold; 20. Upper mold; 21. Placement plate; 22. Movable rail; 23. Hydraulic press; 24. High-temperature heating furnace. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are 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.

[0042] Example:

[0043] Reference Figure 1-5 A preparation device for recycled foamed ceramics from construction waste, comprising a grinding main shell 1, a fine grinding shell 3 is welded to the outer surface of one side of the lower end of the grinding main shell 1, a screen sleeve 4 is welded to the inner surface of the fine grinding shell 3, a fine grinding roller 5 is movably sleeved on the inner surface of the screen sleeve 4, a primary grinding roller 6 is movably connected to the inner surface of the grinding main shell 1, an electromagnetic generator 2 is fixedly connected to the outer surface of the lower end of the grinding main shell 1 away from the fine grinding shell 3, an igniter 7 is fixedly connected to the outer surface of the grinding main shell 1 above the fine grinding shell 3, and a nozzle 8 is fixedly connected to the outer surface of the output end of the igniter 7.

[0044] The construction waste materials are poured in from the top of the main grinding shell 1, and are initially ground by the rolling and squeezing of the primary grinding rollers 6, and then fall into the space surrounded by the fine grinding shell 3 and the screen sleeve 4 below. Grinding balls are placed inside the screen sleeve 4, and the rotation of the fine grinding rollers 5 drives the grinding balls and materials to grind. The particles that meet the standards are squeezed out from the side of the fine grinding shell 3 close to the export plate 9. After the main grinding shell 1 is poured in, the electromagnetic generator 2 is turned on to generate an electromagnetic field to adsorb metal cast iron, steel, etc. to reduce doping. The igniter 7 is connected to natural gas from the outside. By opening it, the corresponding nozzle 8 sprays flames to heat the materials at the grinding site, and the materials are pre-treated at high temperature to remove the thermal insulation materials, high temperature intolerant materials, impurities, etc. in the materials, so as to ensure the fire retardancy and high quality of the physical texture of the finished foamed ceramic products.

[0045] Reference Figure 1-4 A guide plate 9 is welded on the outer surface of one side of the grinding main shell 1 corresponding to the fine grinding shell 3, and a support column 10 is welded on the lower surface of the grinding main shell 1.

[0046] The export plate 9 facilitates the exported materials to fall onto the carrier plate 16 , and the support column 10 facilitates the support of the grinding main shell 1 .

[0047] Reference Figure 1-4 A connecting outer frame 11 is welded to the outer surface of the fine grinding shell 3 corresponding to the supporting column 10, and a high-frequency vibrator 12 is fixedly connected to the outer surface of the connecting outer frame 11.

[0048] The high-frequency vibrator 12 vibrates to assist in more violent shaking, driving the fine grinding shell 3 and the screen sleeve 4 to vibrate, making grinding easier and at the same time making it easier for attached metal cast iron, steel chips, etc. to fall to the bottom of the fine grinding shell 3.

[0049] Reference Figure 1-4 A braking body 13 is disposed on the outer surface of the grinding main shell 1, and a material pushing shell 14 is fixedly connected to the outer surface of the support column 10.

[0050] The brake body 13 has a built-in motor and a transmission mechanism to facilitate the rolling of the primary grinding roller 6 , and the material pushing shell 14 has a built-in motor to facilitate the rotation of the roller 15 .

[0051] Reference Figure 1-3 7. A roller 15 is movably connected to the outer surface of the material pushing shell 14, and a support member 18 is provided on the outer surface of the material pushing shell 14.

[0052] The rotation of the roller 15 drives the loading plate 16 to move, and the support member 18 is convenient for supporting the loading plate 16 at the side.

[0053] Reference Figure 1-3 7. The outer surface of the roller 15 is movably connected with a carrier plate 16, and the outer surface of the carrier plate 16 is movably connected with a connecting sealing plate 17.

[0054] The displacement of the carrier plate 16 drives the material to move, and the connecting sealing plate 17 ensures the carrier plates 16 are connected.

[0055] Reference Figure 1-3 7. A lower mold 19 is provided on the inner surface of the material pushing shell 14, and an upper mold 20 is movably connected to the inner surface of the lower mold 19.

[0056] The lower die 19 and the upper die 20 are extruded and subjected to high temperature inside to complete the die casting.

[0057] Reference Figure 1-3 6. A placing plate 21 is movably connected to the lower surface of the lower mold 19, and a movable rail 22 is provided on the upper surface of the placing plate 21.

[0058] The placement plate 21 facilitates the fixed die-casting operation of the lower mold 19 and the upper mold 20 , and the movable rail 22 facilitates the displacement of the lower mold 19 and the upper mold 20 .

[0059] Reference Figure 1-3 , 6, 8, a hydraulic press 23 is fixedly connected to the outer surface of one side of the lower mold 19, and a high-temperature heating furnace 24 is arranged on the outer surface of the side of the lower mold 19 away from the hydraulic press 23.

[0060] The hydraulic press 23 is extended and retracted to press the upper mold 20 downward, and the blank is prepared inside the lower mold 19. The high-temperature heating furnace 24 forms an internal high temperature by heating to complete the preparation of the corresponding regenerated foamed ceramic.

[0061] A method for preparing building waste recycled foamed ceramics comprises the following steps:

[0062] Step 1. The raw materials for this process are construction slag, waste glass (silicon dioxide), silicon carbide, manganese dioxide, tricalcium phosphate, and sodium humate; construction slag is used as the main material, waste glass (silicon dioxide) is used as a binder, and other materials are used as foaming preparation materials;

[0063] Step 2: Construction waste materials are poured in from the top of the main grinding shell 1, and are initially ground by rolling and squeezing the primary grinding rollers 6, and then fall into the space surrounded by the fine grinding shell 3 and the screen sleeve 4 below. Grinding balls are placed inside the screen sleeve 4, and the rotation of the fine grinding rollers 5 drives the grinding balls and materials to grind. The particles that meet the standards are squeezed out from the side of the fine grinding shell 3 close to the outlet plate 9.

[0064] Step 3: After the main grinding shell 1 is poured in, the electromagnetic generator 2 is turned on to generate an electromagnetic field to adsorb metal cast iron, steel, etc., to reduce doping, and the high-frequency vibrator 12 vibrates to assist in more violent shaking, which is convenient for grinding. The igniter 7 is connected to natural gas from the outside, and by opening it, the corresponding nozzle 8 sprays a flame to heat the material at the grinding point, and the material is pre-treated at high temperature to remove the insulation material, high temperature intolerant material, impurities, etc. in the material, so as to ensure the fire retardancy and high quality of the physical texture of the finished foamed ceramic product;

[0065] Step 4: The material falls onto the carrier plate 16 and rolls onto the lower mold 19. Other materials are added to the lower mold 19 for mixing. According to the actual situation, increasing the proportion of waste glass (silicon dioxide) and silicon carbide will increase the hardness, and the corresponding high temperature resistance will decrease. Increasing the proportion of foaming materials will increase the thermal insulation, and the hardness will decrease. In practical applications, the proportion of engineering slag is at least 65% to ensure stable strength.

[0066] Step 5: Use the hydraulic press 23 to press the upper mold 20 down to the lower mold 19 to complete the die casting. After reaching the corresponding extrusion height, push it into the high-temperature heating furnace 24 for high-temperature forging. The interior of the high-temperature heating furnace 24 ensures that the lower mold 19 and the upper mold 20 are in a stable range to ensure the quality of the finished product. After completion, open the doors on both sides of the high-temperature heating furnace 24 to take out the finished product.

[0067] The implementation principle of the device and method for preparing foamed ceramics recycled from construction waste according to the present invention is as follows:

[0068] The raw materials this time are construction slag, waste glass (silicon dioxide), silicon carbide, manganese dioxide, tricalcium phosphate, and sodium humate; construction slag is used as the main material, waste glass (silicon dioxide) is used as a binder, and other materials are used as foaming preparation materials; construction waste materials are poured in from the top of the main grinding shell 1, and are initially ground by the rolling and squeezing of the primary grinding rollers 6, and then fall into the space surrounded by the fine grinding shell 3 and the screen sleeve 4 below, where grinding balls are placed inside the screen sleeve 4, and the rotation of the fine grinding rollers 5 drives the grinding balls and materials to grind, and particles that meet the standards are squeezed out of the fine grinding shell 3 near the outlet plate 9 side; after the main grinding shell 1 is poured in, the electromagnetic generator 2 is turned on to generate an electromagnetic field to adsorb metal cast iron, steel, etc. to reduce doping, and the high-frequency vibrator 12 vibration assists in more violent shaking to facilitate grinding, and the igniter 7 is connected to natural gas from the outside, and by opening it, the corresponding nozzle 8 sprays flames for heating The materials at the grinding place are subjected to high-temperature pretreatment to remove the insulation materials, materials that are not tolerant to high temperatures, impurities, etc. in the materials to ensure that the foamed ceramic finished products are fire-retardant and have high-quality physical texture. The materials fall onto the loading plate 16 and roll onto the lower mold 19, and other materials are added to the lower mold 19 for mixing. According to actual conditions, an increase in the proportion of waste glass (silicon dioxide) and silicon carbide will increase the hardness, and the corresponding high-temperature resistance will decrease. An increase in the proportion of foamed materials will increase the thermal insulation, and the same hardness will decrease. In actual applications, the proportion of engineering slag is at least 65% to ensure stable strength. The upper mold 20 is pressed down to the lower mold 19 by a hydraulic press 23 to complete the die casting. After reaching the corresponding extrusion height, it is pushed into the high-temperature heating furnace 24 for high-temperature forging. The interior of the high-temperature heating furnace 24 ensures that the lower mold 19 and the upper mold 20 are in a stable range to ensure the quality of the finished product. After completion, the finished product is taken out by opening the doors on both sides of the high-temperature heating furnace 24.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for preparing foamed ceramics recycled from construction waste, comprising a grinding main shell (1), characterized in that: A fine grinding shell (3) is welded to the outer surface of one side of the lower end of the main grinding shell (1), a screen sleeve (4) is welded to the inner surface of the fine grinding shell (3), a fine grinding roller (5) is movably sleeved on the inner surface of the screen sleeve (4), a primary grinding roller (6) is movably connected to the inner surface of the main grinding shell (1), an electromagnetic generator (2) is fixedly connected to the outer surface of the lower end of the main grinding shell (1) away from the fine grinding shell (3), an igniter (7) is fixedly connected to the outer surface of the main grinding shell (1) above the fine grinding shell (3), and a nozzle (8) is fixedly connected to the outer surface of the output end of the igniter (7).

2. The device for preparing foamed ceramics recycled from construction waste according to claim 1, characterized in that: A guide plate (9) is welded to the outer surface of one side of the grinding main shell (1) corresponding to the fine grinding shell (3), and a support column (10) is welded to the lower surface of the grinding main shell (1).

3. The device for preparing foamed ceramics recycled from construction waste according to claim 2, characterized in that: A connecting outer frame (11) is welded to the outer surface of the fine grinding shell (3) corresponding to the supporting column (10), and a high-frequency vibrator (12) is fixedly connected to the outer surface of the connecting outer frame (11).

4. The device for preparing foamed ceramics recycled from construction waste according to claim 3, characterized in that: The outer surface of the grinding main shell (1) is provided with a braking body (13), and the outer surface of the support column (10) is fixedly connected with a material pushing shell (14).

5. The device for preparing foamed ceramics recycled from construction waste according to claim 4, characterized in that: The outer surface of the material pushing shell (14) is movably connected to a roller (15), and the outer surface of the material pushing shell (14) is provided with a support member (18).

6. The device for preparing foamed ceramics recycled from construction waste according to claim 5, characterized in that: The outer surface of the roller (15) is movably connected to a carrier plate (16), and the outer surface of the carrier plate (16) is movably connected to a connecting sealing plate (17).

7. The device for preparing foamed ceramics recycled from construction waste according to claim 4, characterized in that: A lower mold (19) is arranged on the inner surface of the material pushing shell (14), and an upper mold (20) is movably connected to the inner surface of the lower mold (19).

8. The device for preparing foamed ceramics recycled from construction waste according to claim 7, characterized in that: The lower surface of the lower mold (19) is movably connected to a placement plate (21), and the upper surface of the placement plate (21) is provided with a movable rail (22).

9. The device for preparing foamed ceramics recycled from construction waste according to claim 7, characterized in that: The outer surface of one side of the lower mold (19) is fixedly connected to a hydraulic press (23), and the outer surface of the side of the lower mold (19) away from the hydraulic press (23) is provided with a high-temperature heating furnace (24).

10. A method for preparing foamed ceramics recycled from construction waste, characterized in that: The following steps are involved: Step 1. The raw materials for this process are construction slag, waste glass (silicon dioxide), silicon carbide, manganese dioxide, tricalcium phosphate, and sodium humate; construction slag is used as the main material, waste glass (silicon dioxide) is used as a binder, and other materials are used as foaming preparation materials; Step 2: Construction waste materials are poured into the main grinding shell (1) from above, and are initially ground by rolling and squeezing the primary grinding rollers (6) against each other, and then fall into the space surrounded by the fine grinding shell (3) and the screen sleeve (4) below. Grinding balls are placed inside the screen sleeve (4), and the rotation of the fine grinding rollers (5) drives the grinding balls and materials to grind. Particles that meet the standards are squeezed out from the side of the fine grinding shell (3) close to the outlet plate (9). Step 3: After the main grinding shell (1) is poured in, the electromagnetic generator (2) is turned on to generate an electromagnetic field to absorb metal cast iron, steel, etc., to reduce doping, and the high-frequency vibrator (12) is used to vibrate and assist in more violent shaking to facilitate grinding. The igniter (7) is connected to natural gas from the outside, and by opening, the corresponding nozzle (8) sprays flames to heat the material at the grinding site, and the material is pre-treated at high temperature to remove the insulation material, high temperature intolerant material, impurities, etc. in the material, so as to ensure the fire retardancy and high quality of the physical texture of the finished foamed ceramic product; Step 4: The material falls onto the loading plate (16) and rolls onto the lower mold (19). Other materials are added to the lower mold (19) for mixing. According to the actual situation, increasing the proportion of waste glass (silicon dioxide) and silicon carbide will increase the hardness, and the corresponding high temperature resistance will decrease. Increasing the proportion of foaming material will increase the thermal insulation, and the hardness will decrease. In actual applications, the proportion of engineering slag is at least 65% to ensure stable strength. Step 5: The upper die (20) is pressed down to the lower die (19) by a hydraulic press (23) to complete the die casting. After reaching the corresponding extrusion height, it is pushed into a high-temperature heating furnace (24) for high-temperature forging. The interior of the high-temperature heating furnace (24) ensures that the lower die (19) and the upper die (20) are in a stable range to ensure the quality of the finished product. After completion, the finished product is taken out by opening the doors on both sides of the high-temperature heating furnace (24).