Intelligent sorting method and device for building solid waste

Abstract

The invention relates to the technical field of solid waste sorting, in particular to a building solid waste intelligent sorting method and device.The method comprises the specific steps that building solid waste is stably put into winnowing equipment through a feeder, and light solid waste, heavy solid waste and metal solid waste are sorted out; the heavy solid waste is conveyed into a two-section roller type sorting machine, and particle materials, medium-size block materials and large-size block materials are output; the medium-sized lump materials and the large-sized lump materials are sorted into brick lump materials and concrete lump materials with different strengths after being recognized by the image recognition mechanism; and crushing to obtain mixed concrete particles, brick particles and at least two concrete materials with different strengths. Meanwhile, the invention discloses a device for executing the method, by means of the intelligent sorting method and device for the building solid waste, the garbage solid waste is sorted and crushed according to the strength through the image recognition technology, and the sorted and crushed aggregate can be conveniently applied to mixtures for paving road bases with different strength requirements according to different strength indexes; and the road paving quality is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste sorting, and in particular to an intelligent sorting method and device for construction solid waste. Background Art

[0002] With the rapid development of road traffic, the demand for road paving materials is huge. In order to meet engineering needs and waste recycling, construction solid waste is sorted and crushed to obtain reusable granular materials. Construction solid waste includes bricks, concrete, wood boards, plastics, woven bags and a small amount of domestic garbage, which need to be sorted before recycling. However, the existing technology only sorts construction solid waste into light and heavy types and metal types, or sorts materials with large differences, but does not distinguish between heavy materials of the same type. The heavy materials are crushed to form a mixture. Due to the different strengths of the particles in the mixture, it is difficult to maintain the quality of the road paving materials, which affects the quality of road paving. Summary of the Invention

[0003] The purpose of the present invention is to provide a method and device for intelligent sorting of construction solid waste to solve the above technical problems.

[0004] To achieve the above objectives, the present invention provides an intelligent sorting method for construction solid waste, which is characterized by the following specific steps:

[0005] Step S1: The feeder smoothly feeds the construction solid waste into the air separation equipment to sort out light solid waste, heavy solid waste and metal solid waste;

[0006] Step S2: The heavy solid waste is transported to a two-stage drum sorter to output granular materials, medium-sized blocks, and large blocks;

[0007] Step S3: The granular material is separated into mixed concrete granules and brick granules by a centrifugal separator; the medium-sized blocks and large-sized blocks are identified by an image recognition mechanism and then sorted into brick blocks and at least two concrete blocks of different strengths;

[0008] Step S4: After the brick blocks and at least two types of concrete blocks of different strengths are crushed, metal separation is performed again to obtain mixed concrete particles, brick particles and at least two types of concrete materials of different strengths.

[0009] Preferably, in step S3, the centrifugal separator separates the concrete and brick particles into mixed concrete particles and brick particles according to the density difference between the concrete and bricks, and the mixed concrete particles contain concrete particles of different strengths.

[0010] Preferably, in step S3, for medium-sized blocks, which include bricks and concrete blocks, the image recognition process is as follows:

[0011] Step S31a: collecting images of medium-sized blocks and performing preprocessing; the preprocessing includes removing noise;

[0012] Step S32a: sorting out red bricks based on color differences;

[0013] Step S33a: collecting images of medium-sized bricks after sorting again and performing preprocessing; the preprocessing includes grayscale processing, noise removal, contrast enhancement, and cropping;

[0014] Step S34a: extracting image intensity features, the intensity features including RGB values and aggregate exposure rate;

[0015] Step S35a: Calculate the concrete strength index based on the strength characteristics. The calculation formula is as follows:

[0016]

[0017] Among them, Q is the concrete strength index, β and α are weight coefficients, b is the regression coefficient, RGB max is the maximum value of RGB, RGB is the RGB value of the acquired image, and AER is the aggregate exposure ratio;

[0018] Step S36a: Classify the concrete into strength grades and sort them according to the concrete strength index.

[0019] Preferably, in step S3, for large blocks, which include concrete blocks, the image recognition process is as follows:

[0020] Step S31b: collecting large block images and performing preprocessing; the preprocessing includes grayscale processing, noise removal, contrast enhancement, and cropping;

[0021] Step S32b: extracting image intensity features, where the intensity features include RGB values and aggregate exposure rate;

[0022] Step S33b: Calculating the concrete strength index according to the strength characteristics;

[0023] Step S34b: Classify the concrete into strength grades and sort them according to the concrete strength index.

[0024] The device for executing the above-mentioned intelligent sorting method for construction solid waste includes a feeder, an air separation device, a first metal sorting device, an intelligent sorting device, a crushing device and a second metal sorting device arranged in sequence.

[0025] The intelligent sorting equipment sorts heavy solid waste into mixed concrete particles, brick particles, brick blocks and at least two concrete blocks of different strengths; the intelligent sorting equipment includes a two-stage drum sorter, and the first discharge port, the second discharge port and the third discharge port of the two-stage drum sorter are respectively connected to a particle conveyor, a first block conveyor and a second block conveyor; the particle conveyor is connected to a centrifugal separator to separate the particles into mixed concrete particles and brick particles; the first block conveyor and the second block conveyor are both provided with an image recognition mechanism, the first block conveyor is provided with a grabbing manipulator, and a buffer conveyor is provided around the grabbing manipulator, and the grabbing manipulator picks up the particles according to the image The recognition results of the image recognition mechanism divide the blocks on the first block conveyor into brick blocks and at least two concrete blocks of different strengths and transport them to the feed port of the crushing equipment through a buffer conveyor; at least two pushing mechanisms are provided on the second block conveyor, and each pushing mechanism corresponds to a buffer conveyor. The pushing mechanism divides the blocks on the second block conveyor into brick blocks and at least two concrete blocks of different strengths according to the recognition results of the image recognition mechanism and transports them to the feed port of the crushing equipment through a buffer conveyor; a conversion mechanism is provided at the discharge port of the crushing equipment, and the conversion mechanism corresponds to several output conveyors. A second metal sorting device is provided at the discharge end of the conversion mechanism and the centrifugal separator.

[0026] Preferably, the image recognition mechanism includes an image collector and a processor. The image collector transmits the collected image to the processor for preprocessing, extracting image intensity features, calculating concrete strength indicators and strength grades. The processor sends control instructions according to the strength grades to control the movements of the grabbing robot and the pushing mechanism.

[0027] Preferably, the air separation equipment includes at least two air separation mechanisms for sorting out different types of light solid waste.

[0028] Preferably, the two-stage drum sorting machine includes a frame, on which a screening drum is rotatably arranged by a driving mechanism, the screening drum includes an inner fixed filter cartridge and a first screening movable filter cartridge and a second screening movable filter cartridge which are sequentially sleeved on the inner fixed filter cartridge, one end of the inner fixed filter cartridge is arranged opposite to the feed hopper, and the other end of the inner fixed filter cartridge is arranged opposite to the third discharge port, and the bottoms of the first screening movable filter cartridge and the second screening movable filter cartridge are correspondingly provided with a first discharge port and a second discharge port.

[0029] Preferably, an anti-blocking mechanism is provided on the frame, and the anti-blocking mechanism includes a mounting cover fixed on the frame, a cleaning plate is connected to the mounting cover through a height-adjusting cylinder, an elastic cleaning piece is provided on the cleaning plate, and the elastic cleaning piece includes a mounting sleeve, an ejection spring is provided in the mounting sleeve, and the ejection spring is connected to a ejection ball.

[0030] Preferably, the conversion mechanism includes a conversion conveyor, one end of which is rotatably connected to the discharge port of the crushing equipment, the other end of the conversion conveyor is provided with a mobile drive motor and a movable baffle, the movable baffle is connected to an opening and closing cylinder, and the second metal sorting device is arranged in the middle section of the conversion conveyor.

[0031] Therefore, the present invention adopts the above-mentioned intelligent sorting method and device for construction solid waste, which has the beneficial effects of sorting and crushing garbage solid waste according to strength through image recognition technology, and the aggregates after sorting and crushing can be easily applied to mixtures for road base paving with different strength requirements according to the strength index, thereby ensuring the quality of road paving.

[0032] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a flow chart of an intelligent sorting method for construction solid waste according to the present invention;

[0034] Figure 2 Schematic diagram of the structure of the device of the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of the two-stage drum sorting machine of the present invention;

[0036] Figure 4 This is a schematic structural diagram of the screening drum of the present invention;

[0037] Figure 5 This is a schematic structural diagram of the anti-blocking mechanism of the present invention;

[0038] Figure 6 This is a top view of the first block material conveyor of the present invention.

[0039] Reference numerals

[0040] 1. Feeder; 2. Air separation equipment; 3. First metal sorting equipment; 4. Intelligent sorting equipment; 41. Two-stage drum sorter; 411. Frame; 412. Drive mechanism; 413. Screening drum; 4131. Inner fixed filter cartridge; 4132. First screening movable filter cartridge; 4133. Second screening movable filter cartridge; 414. Feed hopper; 415. First discharge port; 416. Second discharge port; 417. Third discharge port; 42. Anti-blocking mechanism; 421. Mounting cover; 422. Height adjustment cylinder; 423. Cleaning plate; 424. Spring Cleaning parts; 4241. Mounting sleeve; 4242. Ejector spring; 4243. Ejector ball; 43. Particle conveyor; 431. Centrifugal separator; 44. First block material conveyor; 45. Second block material conveyor; 46. Image recognition mechanism; 461. Image collector; 462. Processor; 47. Grabbing manipulator; 48. Buffer conveyor; 49. Pushing mechanism; 5. Crushing equipment; 6. Second metal sorting equipment; 7. Conversion mechanism; 71. Conversion conveyor; 72. Mobile drive motor; 73. Movable baffle; 74. Opening and closing cylinder. DETAILED DESCRIPTION

[0041] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is usually placed when in use. These are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] like Figure 1 As shown, a method for intelligent sorting of construction solid waste, the specific steps are as follows:

[0044] Step S1: The feeder 1 steadily feeds the construction solid waste into the air separation equipment 2 to sort out light solid waste, heavy solid waste and metal solid waste.

[0045] Step S2: The heavy solid waste is transported to a two-stage drum sorter 41 to output granular materials, medium-sized blocks and large-sized blocks.

[0046] Step S3: The granular material is separated into mixed concrete granular material and brick granular material by the centrifugal separator 431; the medium-sized blocks and large-sized blocks are identified by the image recognition mechanism 46 and then sorted into brick blocks and at least two concrete blocks of different strengths.

[0047] Centrifugal separator 431 separates concrete (density 2300-2500kg / m 3 ) and bricks (density 1600-1900kg / m 3 ) particles are separated into mixed concrete particles and brick particles, and the mixed concrete particles contain concrete particles of different strengths.

[0048] For medium-sized blocks, which include bricks and concrete blocks, the image recognition process is as follows:

[0049] Step S31a: collecting images of medium-sized blocks and performing preprocessing; the preprocessing includes removing noise.

[0050] Step S32a: sort out the red bricks based on color differences.

[0051] Step S33a: The images of the medium-sized blocks after the bricks are sorted are collected again and preprocessed; the preprocessing includes grayscale processing, noise removal, contrast enhancement and cropping.

[0052] Step S34a: extracting image intensity features, where the intensity features include RGB values and aggregate exposure rates.

[0053] Step S35a: Calculate the concrete strength index based on the strength characteristics. The calculation formula is as follows:

[0054]

[0055] Among them, Q is the concrete strength index, β and α are weight coefficients, b is the regression coefficient, RGB max Where R is the maximum RGB value, RGB is the RGB value of the captured image, and AER is the aggregate exposure ratio. The surface color of medium- and high-strength concrete is bluish-gray (RGB value range: R = 120-150, G = 130-160, B = 110-140). Low-strength concrete, due to its low cement content, has a lighter color (R = 160-180, G = 170-190, B = 150-170). High-strength concrete has a tightly packed cement paste, resulting in an aggregate exposure ratio of less than 10%. Low-strength concrete, due to its poor cement paste bonding, has an aggregate exposure ratio of more than 20%. Therefore, the aggregate exposure ratio is negatively correlated with concrete strength.

[0056] Step S36a: Categorize and sort the concrete materials according to their strength index. In this embodiment, concrete materials are divided into low-strength aggregates and medium-high-strength aggregates. Low-strength aggregates have a strength of C15-C30, while medium-high-strength aggregates have a strength of C30-C60.

[0057] For large blocks, which are generally concrete blocks, the brick content is almost the same as that of medium blocks. Large blocks contain concrete blocks. The image recognition process is as follows:

[0058] Step S31b: Collect large block images and perform preprocessing; the preprocessing includes grayscale processing, noise removal, contrast enhancement, and cropping.

[0059] Step S32b: extracting image intensity features, where the intensity features include RGB values and aggregate exposure rates.

[0060] Step S33b: Calculate the concrete strength index according to the strength characteristics.

[0061] Step S34b: Classify the concrete into strength grades and sort them according to the concrete strength index.

[0062] Step S4: After crushing the brick aggregates and at least two different strength concrete aggregates, metal separation is performed again to obtain mixed concrete particles, brick aggregate, and at least two different strength concrete materials. The sorted and crushed concrete aggregates can be easily applied to road base paving mixtures with different strength requirements based on their strength indicators. Low-strength aggregates can be used for rural roads and parking lot bases, while medium- and high-strength aggregates can be used for expressways, first-class highways, and urban main roads.

[0063] like Figure 2 As shown, the device for executing the above-mentioned intelligent sorting method for construction solid waste includes a feeding device, an air separation device 2, a first metal sorting device 3, an intelligent sorting device 4, a crushing device 5 and a second metal sorting device 6 arranged in sequence.

[0064] The intelligent sorting equipment 4 sorts heavy solid waste into mixed concrete particles, brick particles, brick blocks and at least two concrete blocks of different strengths; the intelligent sorting equipment 4 includes a two-stage drum sorter 41, and the first discharge port 415, the second discharge port 416 and the third discharge port 417 of the two-stage drum sorter 41 are respectively connected to the particle conveyor 43, the first block conveyor 44 and the second block conveyor 45; the particle conveyor 43 is connected to the centrifugal separator 431 to separate the particles into mixed concrete particles and brick particles; Figure 6As shown, the first block material conveyor 44 and the second block material conveyor 45 are both provided with an image recognition mechanism 46, the first block material conveyor 44 is provided with a grabbing robot 47, and a buffer conveyor 48 is provided around the grabbing robot 47. The grabbing robot 47 divides the blocks on the first block material conveyor 44 into brick blocks and at least two concrete blocks of different strengths according to the recognition results of the image recognition mechanism 46 and conveys them to the feed port of the crushing device 5 through the buffer conveyor 48; the second block material conveyor 45 is provided with at least Two pushing mechanisms 49, each corresponding to a buffer conveyor 48, separate the blocks on the second block conveyor 45 into brick blocks and at least two concrete blocks of different strengths based on the recognition results of the image recognition mechanism 46, and convey them to the inlet of the crushing equipment 5 via the buffer conveyor 48; the discharge port of the crushing equipment 5 is provided with a conversion mechanism 7, which corresponds to several output conveyors. A second metal sorting device 6 is provided at the discharge end of the conversion mechanism 7 and the centrifugal separator 431. The conversion mechanism 7 includes a conversion conveyor 71, one end of which is rotatably connected to the discharge port of the crushing equipment 5. The other end of the conversion conveyor 71 is provided with a mobile drive motor 72 and a movable baffle 73, and the movable baffle 73 is connected to an opening and closing cylinder 74. The second metal sorting device 6 is provided in the middle section of the conversion conveyor 71. To realize the sharing of the crushing equipment 5 for multiple block materials, during the conversion, the opening and closing cylinder 74 is started to close the movable baffle 73 to stop the conversion conveyor 71 from discharging materials, and the mobile drive motor 72 is started to rotate the conversion conveyor 71. When it rotates to the corresponding position, the opening and closing cylinder 74 is started to open the movable baffle 73 and the conversion conveyor 71 starts to discharge materials.

[0065] The image recognition mechanism 46 includes an image collector 461 and a processor 462. The image collector 461 transmits the collected image to the processor 462 for preprocessing, extracting image intensity features, calculating concrete strength indicators and strength grades. The processor 462 sends control instructions according to the strength grade to control the movement of the grabbing robot 47 and the pushing mechanism 49.

[0066] The air separation equipment 2 includes at least two air separation mechanisms for sorting out different types of light solid waste, which include plastics, woven bags and wood blocks. The number of air separation mechanisms is set according to actual needs.

[0067] like Figure 2-Figure 3As shown, the two-stage drum sorter 41 includes a frame 411, on which a screening drum 413 is rotatably provided via a driving mechanism 412, and the screening drum 413 includes an inner fixed filter cartridge 4131 and a first screening movable filter cartridge 4132 and a second screening movable filter cartridge 4133 which are sequentially sleeved on the inner fixed filter cartridge 4131, one end of the inner fixed filter cartridge 4131 is arranged opposite to the feed hopper 414, and the other end of the inner fixed filter cartridge 4131 is arranged opposite to the third discharge port 417, and a first discharge port 415 and a second discharge port 416 are correspondingly provided at the bottom of the first screening movable filter cartridge 4132 and the second screening movable filter cartridge 4133. The positions of the first movable screening filter cartridge 4132 and the second movable screening filter cartridge 4133 are adjusted according to the actual particle size requirements, so that the relative positions of the filter holes of the first movable screening filter cartridge 4132 and the second movable screening filter cartridge 4133 and the inner fixed filter cartridge 4131 are different, thereby achieving the size of the filter apertures in the two sections.

[0068] The frame 411 is provided with an anti-blocking mechanism 42, such as Figure 5 As shown, the anti-blocking mechanism 42 includes a mounting cover 421 fixed to the frame 411, a cleaning plate 423 is connected to the mounting cover 421 via a height-adjusting cylinder 422, an elastic cleaning member 424 is provided on the cleaning plate 423, and the elastic cleaning member 424 includes a mounting sleeve 4241, an ejection spring 4242 is provided in the mounting sleeve 4241, and the ejection spring 4242 is connected to a top ball 4243. When it is necessary to clean the screening drum 413, the height-adjusting cylinder 422 is started to make the cleaning plate 423 close to the screening drum 413. When the top ball 4243 passes through the filter hole, it is pushed up by the spring to clean the filter hole, thereby achieving cleaning of the filter hole without stopping the machine.

[0069] Finally, it should be noted that 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 preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A method for intelligent sorting of construction solid waste, characterized in that: The specific steps are as follows: Step S1: The feeder smoothly feeds the construction solid waste into the air separation equipment to sort out light solid waste, heavy solid waste and metal solid waste; Step S2: The heavy solid waste is transported to a two-stage drum sorter to output granular materials, medium-sized blocks, and large blocks; Step S3: The granular material is separated into mixed concrete granular material and brick granular material by a centrifugal separator; the medium-sized blocks and large-sized blocks are identified by an image recognition mechanism and then sorted into brick blocks and at least two concrete blocks of different strengths; Step S4: After the brick blocks and at least two types of concrete blocks of different strengths are crushed, metal separation is performed again to obtain mixed concrete particles, brick particles and at least two types of concrete materials of different strengths.

2. The intelligent sorting method for construction solid waste according to claim 1, characterized in that: In step S3, the centrifugal separator separates the concrete and brick particles into mixed concrete particles and brick particles according to the density difference between the concrete and bricks. The mixed concrete particles contain concrete particles of different strengths.

3. The intelligent sorting method for construction solid waste according to claim 1, characterized in that: In step S3, for medium-sized blocks, which include bricks and concrete blocks, the image recognition process is as follows: Step S31a: collecting images of medium-sized blocks and performing preprocessing; the preprocessing includes removing noise; Step S32a: sorting out red bricks based on color differences; Step S33a: collecting images of medium-sized bricks after sorting again and performing preprocessing; the preprocessing includes grayscale processing, noise removal, contrast enhancement, and cropping; Step S34a: extracting image intensity features, the intensity features including RGB values and aggregate exposure rate; Step S35a: Calculate the concrete strength index based on the strength characteristics. The calculation formula is as follows: Among them, Q is the concrete strength index, β and α are weight coefficients, b is the regression coefficient, RGB max is the maximum value of RGB, RGB is the RGB value of the acquired image, and AER is the aggregate exposure ratio; Step S36a: Classify the concrete into strength grades and sort them according to the concrete strength index.

4. The intelligent sorting method for construction solid waste according to claim 1, characterized in that: In step S3, for large blocks, which include concrete blocks, the image recognition process is as follows: Step S31b: collecting large block images and performing preprocessing; the preprocessing includes grayscale processing, noise removal, contrast enhancement, and cropping; Step S32b: extracting image intensity features, where the intensity features include RGB values and aggregate exposure rate; Step S33b: Calculating the concrete strength index according to the strength characteristics; Step S34b: Classify the concrete into strength grades and sort them according to the concrete strength index.

5. The device for executing the intelligent sorting method for construction solid waste according to claim 4 is characterized in that: It includes a feeder, an air separation device, a first metal sorting device, an intelligent sorting device, a crushing device and a second metal sorting device which are arranged in sequence; The intelligent sorting equipment sorts heavy solid waste into mixed concrete particles, brick particles, brick blocks and at least two concrete blocks of different strengths; the intelligent sorting equipment includes a two-stage drum sorter, and the first discharge port, the second discharge port and the third discharge port of the two-stage drum sorter are respectively connected to a particle conveyor, a first block conveyor and a second block conveyor; the particle conveyor is connected to a centrifugal separator to separate the particles into mixed concrete particles and brick particles; the first block conveyor and the second block conveyor are both provided with an image recognition mechanism, the first block conveyor is provided with a grabbing manipulator, and a buffer conveyor is provided around the grabbing manipulator, and the grabbing manipulator picks up the particles according to the image The recognition results of the image recognition mechanism divide the blocks on the first block conveyor into brick blocks and at least two concrete blocks of different strengths and transport them to the feed port of the crushing equipment through a buffer conveyor; at least two pushing mechanisms are provided on the second block conveyor, and each pushing mechanism corresponds to a buffer conveyor. The pushing mechanism divides the blocks on the second block conveyor into brick blocks and at least two concrete blocks of different strengths according to the recognition results of the image recognition mechanism and transports them to the feed port of the crushing equipment through a buffer conveyor; a conversion mechanism is provided at the discharge port of the crushing equipment, and the conversion mechanism corresponds to several output conveyors. A second metal sorting device is provided at the discharge end of the conversion mechanism and the centrifugal separator.

6. The device for intelligent sorting of construction solid waste according to claim 5, characterized in that: The image recognition mechanism includes an image collector and a processor. The image collector transmits the collected image to the processor for preprocessing, extracts image intensity features, calculates concrete strength indicators and strength grades. The processor sends control instructions to control the movement of the grabbing robot and the pushing mechanism according to the strength grade.

7. The device for intelligent sorting of construction solid waste according to claim 6, characterized in that: The air separation equipment includes at least two air separation mechanisms for sorting out different types of light solid waste.

8. The device for intelligent sorting of construction solid waste according to claim 7, characterized in that: The two-stage drum sorter includes a frame, on which a screening drum is rotatably arranged by a driving mechanism. The screening drum includes an inner fixed filter cartridge and a first screening movable filter cartridge and a second screening movable filter cartridge which are sequentially sleeved on the inner fixed filter cartridge. One end of the inner fixed filter cartridge is arranged opposite to the feed hopper, and the other end of the inner fixed filter cartridge is arranged opposite to the third discharge port. The bottoms of the first and second screening movable filter cartridges are correspondingly provided with a first discharge port and a second discharge port.

9. The device for intelligent sorting of construction solid waste according to claim 8, characterized in that: An anti-blocking mechanism is provided on the frame, which includes a mounting cover fixed on the frame, a cleaning plate connected to the mounting cover through a height-adjusting cylinder, an elastic cleaning piece provided on the cleaning plate, and the elastic cleaning piece includes a mounting sleeve, an ejection spring provided in the mounting sleeve, and a ejection spring connected to a ejection ball.

10. The device for intelligent sorting of construction solid waste according to claim 9, characterized in that: The conversion mechanism includes a conversion conveyor, one end of which is rotatably connected to the discharge port of the crushing equipment, and the other end of the conversion conveyor is provided with a mobile drive motor and a movable baffle, which is connected to an opening and closing cylinder, and the second metal sorting device is arranged in the middle section of the conversion conveyor.

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