Core-shell light aggregate processing apparatus

Abstract

The application provides a core-shell light aggregate processing equipment, which comprises a spraying device, a first conveying device, a spraying device and a granulating device; the spraying device is located above the first conveying device, the spraying head of the spraying device faces the first conveying device, the feeding port of the granulating device is located below the output end of the first conveying device, the granulating device is rotatable, the spraying device is located above the granulating device, and the spraying head of the spraying device faces the feeding port of the granulating device. Therefore, the application can produce high-quality aggregates as much as possible.

Description

Technical Field

[0001] This application belongs to the field of aggregate preparation technology, and more specifically, relates to a core-shell type lightweight aggregate processing equipment. Background Technology

[0002] In the construction industry, lightweight aggregates refer to a class of man-made or natural porous materials with a density significantly lower than that of ordinary natural aggregates (such as crushed stone and river sand), and are mainly used to prepare lightweight concrete. Core-shell lightweight aggregates are a new type of lightweight aggregate with a special structure, consisting of a core and an outer shell. Due to their high strength and durability, core-shell lightweight aggregates are widely used in construction.

[0003] Currently, core-shell lightweight aggregates are produced using a cold bonding method. The process includes: after selecting a suitable core material, manually mixing the core material with water and cement, and then curing it.

[0004] However, the above-mentioned preparation process relies on manual production, which results in uneven coating thickness, large differences in aggregate density and strength, leading to poor product consistency and making it difficult to meet the demand for high-quality aggregates in lightweight building materials. Summary of the Invention

[0005] The purpose of this application is to provide a core-shell type lightweight aggregate processing equipment to produce high-quality aggregates as much as possible.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a core-shell type lightweight aggregate processing equipment is provided, comprising: a spraying device, a first conveying device, a spraying device, and a granulation device; the spraying device is located above the first conveying device, and the spraying head of the spraying device faces the first conveying device; the feed inlet of the granulation device is located below the output end of the first conveying device; the granulation device is rotatable inside; and the spraying device is located above the granulation device, and the spraying head of the spraying device faces the feed inlet of the granulation device.

[0007] Optionally, the core-shell type lightweight aggregate processing equipment also includes a multi-stage screening device and a second conveying device; the multi-stage screening device includes multiple screens with different apertures, and the multiple screens are arranged in order of increasing aperture size; the input end of the second conveying device is located below the discharge port of the granulation device, and the output end of the second conveying device is located above the screen with the smallest aperture among the multiple screens.

[0008] Optionally, the core-shell type lightweight aggregate processing equipment also includes an expanded polystyrene (EPS) storage device, and a granulation device including a third conveying device, a primary granulation device, and a granulator; the discharge port of the EPS storage device is located above the input end of the first conveying device, the inlet of the primary granulation device is located below the output end of the first conveying device, the discharge port of the primary granulation device is located below the input end of the third conveying device, the inlet of the granulator is located below the output end of the third conveying device, the spraying device is located above the granulator, and the spraying head of the spraying device faces the inlet of the granulator, the granulator is rotatably configured, and the input end of the second conveying device is located below the discharge port of the granulator.

[0009] Optionally, the core-shell type lightweight aggregate processing equipment also includes a cement-based recycling device, and the primary granulation device is equipped with a vibrating screen. The discharge port above the vibrating screen in the primary granulation device faces the third conveying device, and the discharge port below the vibrating screen in the primary granulation device faces the cement-based recycling device.

[0010] Optionally, the core-shell type lightweight aggregate processing equipment also includes a fixed frame, a cement-based recycling tray, and a water recycling tray. The cement-based recycling tray and the water recycling tray are rotatably mounted on the fixed frame. When the spraying device sprays water, the water recycling tray is located below the granulator. When the spraying device sprays cement-based materials, the cement-based recycling tray is located below the granulator.

[0011] Optionally, the core-shell type lightweight aggregate processing equipment also includes a fourth conveying device. When the cement-based recycling tray is located below the granulator, the input end of the fourth conveying device is located below the cement-based recycling tray, and the output end of the fourth conveying device is located above the cement-based recycling device.

[0012] Optionally, the core-shell type lightweight aggregate processing equipment also includes a water recovery device located below the water recovery tray.

[0013] Optionally, the core-shell lightweight aggregate processing equipment also includes a camera and a weight sensor. The camera is mounted on a fixed frame and faces the pelletizer, while the weight sensor is located inside the pelletizer.

[0014] Optionally, the granulator is tilted, with the angle between the height direction of the granulator and the horizontal plane ranging from 40 to 50°.

[0015] The beneficial effects of the air conditioning system provided in this application are as follows: The first conveying device can lay EPS granules, allowing the spray nozzle of the spraying device to evenly spray epoxy resin onto the EPS granules. Spraying epoxy resin can improve the adhesion of EPS and reduce the risk of subsequent cement-based coating peeling off. The first conveying device also serves a conveying function. At the end of spraying, the first conveying device can transport the material to the granulation device. The spray nozzle of the spraying device can spray water and cement-based materials onto the material in the granulation device. The granulation device can rotate, which can improve the adhesion of the cement-based material, ensure the compressive strength of the aggregate, and ensure the stability and efficiency of the aggregate production process. Furthermore, the automated production process allows for the setting of spraying parameters for epoxy resin and cement-based materials in the spraying device, or the calculation of these parameters via other equipment, which are then sent to the spraying device (or the device can be directly controlled). This ensures the accuracy of both parameters and production. Similarly, the spraying device allows for the setting of spraying parameters for water and cement-based materials, or the calculation of these parameters via other equipment, which are then sent to the spraying device (or the device can be directly controlled). This again ensures the accuracy of both parameters and production.

[0016] Secondly, this application provides a control system, which includes the core-shell type lightweight aggregate processing equipment and control equipment as described in the first aspect above, wherein the control equipment is used to control the core-shell type lightweight aggregate processing equipment.

[0017] It is understandable that the beneficial effects of the second aspect mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 Schematic diagram of the core-shell type lightweight aggregate processing equipment provided in the embodiments of this application Figure 1 ;

[0020] Figure 2 Schematic diagram of core-shell lightweight aggregate processing equipment provided in the embodiments of this application Figure 2 .

[0021] The following are the labeling elements in the figure:

[0022] 1-EPS storage device; 2-First conveying device; 3-Spraying device; 4-Primary granulation device; 5-Third conveying device; 6-Granulator; 7-Spraying device; 8-Second conveying device; 9-Multi-stage screening device; 10-Cement-based recycling device; 11-Fixed frame; 12-Cement-based recycling tray; 13-Water recycling tray; 14-Fourth conveying device; 15-Water recycling device; 16-Camera; 17-Hopper; 18-Control equipment. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figure 1 and Figure 2 The core-shell lightweight aggregate processing equipment provided in this application embodiment will now be described. The core-shell lightweight aggregate processing equipment in this application embodiment includes a spraying device 3, a first conveying device 2, a spraying device 7, and a granulation device; the spraying device 3 is located above the first conveying device 2, and the spraying head of the spraying device 3 faces the first conveying device 2; the feed inlet of the granulation device is located below the output end of the first conveying device 2; the spraying device 7 is located above the granulation device, and the spraying head of the spraying device 7 faces the feed inlet of the granulation device.

[0028] The spraying device 3 is used to spray epoxy resin and cement-based materials. The first conveying device 2 carries the EPS granules while the spraying device 3 is spraying epoxy resin and cement-based materials, and also conveys the material after spraying to the granulation device. The spraying device 7 is used to spray water and cement-based materials. The granulation device carries the material while the spraying device 7 is spraying water and cement-based materials, and rotates to ensure that the water and cement-based materials are evenly sprayed onto the surface of the material.

[0029] During production, EPS particles are located on the first conveying device 2. The spraying device 3 first sprays epoxy resin onto the EPS particles on the first conveying device 2. After the spraying is completed, cement-based (dry material) is sprayed onto the EPS particles after the epoxy resin is sprayed. After the spraying is completed, the first conveying device 2 conveys the material to the granulation device. The spraying device 7 sprays water and cement-based material onto the material and controls the rotation of the granulation device. When the rotation ends, the preparation is completed, and the material obtained is core-shell type lightweight aggregate.

[0030] The first conveying device 2 can be a conveyor belt; the first conveying device 2 can also be other types of conveying devices, which are not limited in this application.

[0031] The spraying device 3 can have one or more spray heads. This application does not limit the number of spray heads in the spraying device 3.

[0032] The spraying device 7 can have one or more spray heads. This application does not limit the number of spray heads in the spraying device 7.

[0033] The granulation device is rotatable, which allows the cement base to adhere evenly to the surface of the first material.

[0034] The core-shell lightweight aggregate processing equipment provided in this application embodiment includes a first conveying device 2 that can lay EPS granules, allowing the spraying head of the spraying device 3 to evenly spray epoxy resin onto the EPS granules. Spraying epoxy resin improves the adhesion of the EPS and reduces the risk of subsequent cement-based coating peeling. The first conveying device 2 also serves a transport function; at the end of spraying, it can transport the material to a granulation device. The spraying head of the spraying device 7 can spray water and cement-based materials onto the material in the granulation device. The granulation device can rotate, thus improving the adhesion of the cement-based material, ensuring the compressive strength of the aggregate, and guaranteeing the stability and efficiency of the aggregate production process.

[0035] Furthermore, by adopting an automated production process, the spraying device 3 can set the spraying parameters for epoxy resin and cement-based materials, or calculate the spraying parameters for epoxy resin and cement-based materials through other equipment (such as subsequent control equipment) and send them to the spraying device 3 (it can also directly control the spraying device 3). This ensures the accuracy of the parameters and the accuracy of the production. The spraying device 7 can set the spraying parameters for water and cement-based materials, or calculate the spraying parameters for water and cement-based materials through other equipment (such as subsequent control equipment) and send them to the spraying device 3 (it can also directly control the spraying device 3). This ensures the accuracy of the parameters and the accuracy of the production.

[0036] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment further includes a multi-stage screening device 9 and a second conveying device 8; the multi-stage screening device 9 includes multiple screens with different apertures, and the multiple screens are arranged in order of increasing aperture size; the input end of the second conveying device 8 is located below the discharge port of the granulation device, and the output end of the second conveying device 8 is located above the screen with the smallest aperture among the multiple screens.

[0037] The number of screens can be two or more. This application does not limit the specific number of screens.

[0038] When using two sieves, one of the sieves has the same aperture size as the aggregate required for preparation. For example, if the required aggregate size is 20 mm, use two sieves, one with an aperture size of 20 mm and the other with an aperture size of 10 mm.

[0039] When there are two or more sieves, the aperture of one of the sieves is the same as the required particle size for preparing the aggregate. For example, if the required particle size of the aggregate is 20 mm, and there are four sieves, one of which has an aperture of 20 mm, while the apertures of the other three sieves are 18 mm, 15 mm, and 10 mm, respectively.

[0040] It should be noted that the screen with the smallest aperture among multiple screens is usually used to remove waste cement-based powder that is not completely attached to the aggregate, and this powder can be recycled in the cement-based recycling device 10. Screens with apertures different from the required aggregate size are used to remove aggregate that does not meet the required aggregate size. Aggregate that does not meet the required aggregate size can be put back into the granulation device (either manually or by other means), allowing the spraying device 7 and the granulation device to work again to process the aggregate that does not meet the required aggregate size, thus facilitating the production of more aggregate that meets the required aggregate size.

[0041] In addition, embodiments of this application may also include a hopper 17, which may be located below the multi-stage screening device 9. The hopper 17 includes multiple sub-hoppers. Among the multiple screens, except for the screen with the smallest aperture used to screen out waste cement base that is not completely attached to the aggregate, each screen has a sub-hopper below it for storing aggregate.

[0042] In this embodiment, a multi-stage screening device 9 can be used to separate aggregates that meet the particle size requirements from those that do not, thus facilitating the separation of aggregates with the desired particle size. Aggregates with non-desired particle sizes can then be fed back into the granulation device, allowing the spraying device 7 and the granulation device to work together to process the non-desired particle size aggregates again, forming a closed loop. This reduces material waste, lowers the material loss rate, and ensures that more aggregates meeting the required particle size requirements can be produced.

[0043] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment further includes an EPS storage device 1, and the granulation device includes a third conveying device 5, a primary granulation device 4, and a granulator 6; the discharge port of the EPS storage device 1 is located above the input end of the first conveying device 2, the feed port of the primary granulation device 4 is located below the output end of the first conveying device 2, the discharge port of the primary granulation device 4 is located below the input end of the third conveying device 5, the feed port of the granulator 6 is located below the output end of the third conveying device 5, the spraying device 7 is located above the granulator 6, and the spraying head of the spraying device 7 faces the feed port of the granulator 6, the granulator 6 is rotatably arranged, and the input end of the second conveying device 8 is located below the discharge port of the granulator 6.

[0044] The primary granulation device 4 is used to cure the material after spraying epoxy resin and cement-based coating. The curing time is preset, for example, 30-45 minutes. This application does not specify the curing time of the primary granulation device 4.

[0045] The spraying device 7 can periodically spray water and cement base according to the preset granulation cycle.

[0046] For example, if the preset granulation cycle is 30 seconds, the spraying device 7 starts spraying at 10:00, spraying water and cement base for the first 30 seconds and not spraying for the next 30 seconds. If the spraying device 7 starts spraying at 10:01, spraying water and cement base for the first 30 seconds and not spraying for the next 30 seconds.

[0047] In addition, the granulator 6 continues to rotate during the spraying process of the spraying device 7, and the granulator 6 can continue to rotate for a certain period of time, such as 3-4 minutes, so that the mixture of water and cement base adheres more evenly to the surface of the material.

[0048] In some embodiments, the granulator 6 is inclined, and the angle between the height direction of the granulator 6 and the horizontal plane is in the range of 40-50°. The inclined arrangement of the granulator 6 allows the material to fully contact the water sprayed by the spraying device 7 and the cement base, thereby improving the adhesion rate of the water and cement base mixture on the material surface.

[0049] Typically, EPS granules are stored in an EPS storage device 1. During production, the EPS granules can be released from the EPS storage device 1 onto a first conveying device 2, allowing a spraying device 3 to spray epoxy resin onto the EPS granules on the first conveying device 2. After spraying, a cement-based coating is applied. When spraying is complete, a third conveying device 5 can be activated to transport the material coated with epoxy resin and cement to a primary granulation device 4, where the material undergoes curing. When curing is complete, the third conveying device 5 can be activated to transport the material to a granulator 6. Afterward, the spraying device 7 and the granulator 6 can be started.

[0050] In this embodiment, epoxy resin and cement-based dry material are sprayed onto EPS particles, and the resulting material is cured in the primary granulation device 4, which can improve the bonding performance of the material and ensure the adhesion of water and cement-based materials in the subsequent process.

[0051] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment further includes a cement-based recycling device 10, and a vibrating screen is provided in the primary granulation device 4. The discharge port above the vibrating screen in the primary granulation device 4 faces the third conveying device 5, and the discharge port below the vibrating screen in the primary granulation device 4 faces the cement-based recycling device 10.

[0052] In some embodiments, the vibrating screen is inclined so that the material can be discharged from the outlet above the vibrating screen in the primary granulation device 4.

[0053] In this embodiment of the application, during the operation of the vibrating screen, the waste cement base can be discharged into the cement base recycling device 10 through the discharge port of the primary granulation device 4 located below the vibrating screen, which facilitates the recycling and reuse of the waste cement base and avoids resource waste.

[0054] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment further includes a fixed frame 11, a cement-based recycling tray 12, and a water recycling tray 13. The cement-based recycling tray 12 and the water recycling tray 13 are rotatably mounted on the fixed frame 11. When the spraying device 7 sprays water, the water recycling tray 13 is located below the granulator 6. When the spraying device 7 sprays cement-based materials, the cement-based recycling tray 12 is located below the granulator 6.

[0055] like Figure 1As shown, during the spraying process of the spraying device 7, the cement-based recycling tray 12 is located on the side away from the granulator 6, and the water recycling tray 13 can rotate to the bottom of the granulator 6. During the process of the spraying device 7 spraying water and the granulator 6 rotating, the water recycling tray 13 can recycle the wastewater sprayed by the spraying device 7 outside the granulator 6, as well as the wastewater sprayed out by the granulator 6 due to rotation.

[0056] like Figure 2 As shown, during the spraying process of the cement base, the water recovery tray 13 is located on the side away from the granulator 6, and the cement base recovery tray 12 can rotate to the bottom of the granulator 6. During the process of the spraying device 7 spraying the cement base and the granulator 6 rotating, the cement base recovery tray 12 can recover the waste cement base sprayed by the spraying device 7 outside the granulator 6, as well as the waste cement base sprayed out by the rotation of the granulator 6.

[0057] In this embodiment, the water recycling tray 13 can recycle wastewater sprayed by the spraying device 7 outside the granulator 6, as well as wastewater sprayed out by the rotation of the granulator 6, facilitating wastewater recycling and reuse and avoiding resource waste. The cement-based recycling tray 12 can recycle waste cement-based materials sprayed by the spraying device 7 outside the granulator 6, as well as waste cement-based materials sprayed out by the rotation of the granulator 6, facilitating waste cement-based material recycling and reuse and avoiding resource waste.

[0058] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment further includes a fourth conveying device 14. When the cement-based recycling tray 12 is located below the granulator 6, the input end of the fourth conveying device 14 is located below the cement-based recycling tray 12, and the output end of the fourth conveying device 14 is located above the cement-based recycling device 10.

[0059] The fourth conveying device 14 is used to convey the cement-based material recovered in the cement-based recycling tray 12 to the cement-based recycling device 10.

[0060] The cement in the cement-based recycling pallet 12 can be transferred manually to the fourth conveying device 14. The cement in the cement-based recycling pallet can also be transferred to the fourth conveying device 14 in other ways, such as by a robot with a robotic arm. This application does not limit this.

[0061] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment further includes a water recovery device 15, which is located below the water recovery tray 13.

[0062] The water in the water recycling tray 13 can be recycled into the water recycling device 15 in various ways, which facilitates the recycling and reuse of wastewater and avoids resource waste.

[0063] For example, the water recycling tray 13 may be inclined toward the water recycling device 15. As another example, the water recycling tray 13 may have a drain channel facing the water recycling device 15. As yet another example, the water recycling tray 13 may have a through-hole through which a drain pipe can be connected to the water recycling device 15.

[0064] In another embodiment of this application, the core-shell type lightweight aggregate processing equipment also includes a camera 16 and a weight sensor. The camera 16 is mounted on the mounting frame 11 and faces the pelletizer 6, and the weight sensor is located at the bottom of the pelletizer 6.

[0065] When the spraying device 7 and the granulator 6 finish working, there may be a situation where the particle size of the obtained aggregate does not reach the required particle size. Optionally, the camera 16 can collect images of the material in the granulator 6, and the weight sensor can collect the weight of the material in the granulator 6, thereby facilitating the verification of the material condition at the end of spraying and rotation.

[0066] This application also provides a control system, which includes the aforementioned core-shell lightweight aggregate processing equipment and control equipment 18. The control equipment 18 is used to control the EPS storage device 1, spraying device 3, primary granulation device 4, granulator 6, spraying device 7, multi-stage screening device 9, first conveying device 2, second conveying device 8, third conveying device 5, and fourth conveying device 14 in the core-shell lightweight aggregate processing equipment.

[0067] Specifically, the control device 18 can control the EPS storage device 1 to discharge EPS particles to the first conveying device 2, control the spraying device 3 to spray epoxy resin and cement base, control the primary granulation device 4 to perform curing, control the activity of the vibrating screen in the primary granulation device 4, control the rotation of the granulator 6, control the spraying device 7 to spray water and cement base, control the activity of the multi-stage screening device 9, and control the activity of the first conveying device 2, the second conveying device 8, the third conveying device 5, and the fourth conveying device 14.

[0068] Before production, the control device 18 can input the first particle size of the target aggregate to be prepared by the core-shell lightweight aggregate processing equipment and the initial weight of the EPS particles into a machine learning model to obtain first parameters. The first parameters include the spraying parameters of the spraying device 3, the first rotation parameters of the granulator 6, and the first spraying amount of water and cement-based materials in the spraying device 7. The first spraying amount includes the spraying amount of water and the spraying amount of cement-based materials. The first rotation parameters include the first rotation speed, the first angle, and the first rotation duration. The machine learning model is used to predict the spraying parameters of the spraying device 3, the first rotation parameters of the granulator 6, and the first spraying amount of water and cement-based materials in the spraying device 7 based on the first particle size of the required aggregate and the initial weight of the EPS.

[0069] Therefore, by controlling the parameters output by the machine learning model in the control device 18 for production, the error in subsequent aggregate preparation can be reduced, and data preparation can be made for the subsequent preparation of target aggregate based on the aforementioned parameters.

[0070] During the production process, the control equipment can control the spraying device to spray epoxy resin onto the initial weight of EPS according to the spraying parameters to obtain the first material. The spraying parameters include the spraying amount. Then, the control equipment controls the spraying device to spray water and cement base onto the first material according to the first spraying amount, and controls the granulator to rotate according to the first rotation parameters to obtain the second material.

[0071] At the end of the spraying process of the spraying device 7 and the rotation of the granulator 6, the first weight and second particle size of the second material in the granulator 6 can be obtained. These are input into the machine learning model to obtain second parameters, including a second spraying volume and second rotation parameters. The second rotation parameters include a second rotation speed, a second angle, and a second rotation duration. The control device 18 can control the spraying device 7 to spray water and cement-based materials onto the second material again according to the second spraying volume, and control the granulator 6 to rotate according to the second rotation parameters to obtain the target aggregate with the first particle size. In other words, the machine learning model is also used to predict the second rotation parameters of the granulator 6 and the second spraying volume of water and cement-based materials in the spraying device 7 based on the first weight and second particle size of the second material generated during the production process.

[0072] Based on this, the control device 18 can verify the particle size and weight of the material in the current granulator 6, and determine the amount of water and cement base sprayed by the spraying device 7, as well as the rotation parameters of the granulator 6, and spray water and cement base again, and rotate the granulator 6. In this way, the cement base in the obtained aggregate can have better adhesion, better compressive strength, and more accurate particle size, thus ensuring the accuracy of the aggregate production process.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A core-shell light aggregate processing apparatus, characterized by, It includes a spraying device, a first conveying device, a spraying device, and a granulation device; the spraying device is located above the first conveying device, and the spraying head of the spraying device faces the first conveying device; the feed inlet of the granulation device is located below the output end of the first conveying device; the granulation device is rotatable inside; the spraying device is located above the granulation device, and the spraying head of the spraying device faces the feed inlet of the granulation device.

2. The core-shell light aggregate processing apparatus of claim 1, wherein, The processing equipment also includes a multi-stage screening device and a second conveying device; The multi-stage screening device includes multiple screens with different aperture sizes. The multiple screens are arranged in order of increasing aperture size. The input end of the second conveying device is located below the discharge port of the granulation device, and the output end of the second conveying device is located above the screen with the smallest aperture among the multiple screens.

3. The core-shell light weight aggregate processing apparatus as claimed in claim 2, wherein, The processing equipment also includes an expanded polystyrene (EPS) storage device, and the granulation device includes a third conveying device, a primary granulation device, and a granulator. The discharge port of the EPS storage device is located above the input end of the first conveying device, the inlet of the primary granulation device is located below the output end of the first conveying device, the discharge port of the primary granulation device is located below the input end of the third conveying device, the inlet of the granulator is located below the output end of the third conveying device, the spraying device is located above the granulator, and the spraying head of the spraying device faces the inlet of the granulator. The granulator is rotatably configured, and the input end of the second conveying device is located below the discharge port of the granulator.

4. The core-shell light aggregate processing apparatus according to claim 3, wherein The processing equipment also includes a cement-based recycling device. The primary granulation device is equipped with a vibrating screen. The discharge port above the vibrating screen in the primary granulation device faces the third conveying device, and the discharge port below the vibrating screen in the primary granulation device faces the cement-based recycling device.

5. The core-shell type lightweight aggregate processing equipment as described in claim 4, characterized in that, The processing equipment also includes a fixed frame, a cement-based recycling tray, and a water recycling tray. The cement-based recycling tray and the water recycling tray are rotatably mounted on the fixed frame. When the spraying device sprays water, the water recycling tray is located below the granulator. When the spraying device sprays cement, the cement-based recycling tray is located below the granulator.

6. The core-shell light aggregate processing apparatus of claim 5, wherein, The processing equipment also includes a fourth conveying device. When the cement-based recycling tray is located below the granulator, the input end of the fourth conveying device is located below the cement-based recycling tray, and the output end of the fourth conveying device is located above the cement-based recycling device.

7. The core-shell light weight aggregate processing apparatus as claimed in claim 5, wherein, The processing equipment also includes a water recycling device located below the water recycling tray.

8. The core-shell light weight aggregate processing apparatus as claimed in claim 5, wherein, The processing equipment also includes a camera and a weight sensor. The camera is mounted on the fixed frame and faces the granulator, and the weight sensor is located at the bottom of the granulator.

9. The core-shell light aggregate processing apparatus according to any one of claims 3 to 8, characterized by, The granulator is inclined, and the angle between the height direction of the granulator and the horizontal plane is in the range of 40-50°.

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